Entries |
Document | Title | Date |
20080211330 | CONTROLLER FOR AC GENERATOR - A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp generator for generating control signals to a switching rectifier to generate a regulated DC signal. | 09-04-2008 |
20080231125 | Turbo Generator With Exciter Having Pressure Recovery - A turbo generator ( | 09-25-2008 |
20080238222 | IN-SHAFT REVERSE BRAYTON CYCLE CRYO-COOLER - An in-shaft cryogenic cooler mounts entirely within the shaft of a dynamoelectric machine that has a rotor comprising a high temperature superconductor. | 10-02-2008 |
20080278011 | STATOR ASSEMBLY FOR USE IN A FLUID-COOLED MOTOR AND METHOD OF MAKING THE SAME - A stator assembly for use in a fluid-cooled motor is disclosed, wherein a cooling jacket is disposed around a main body of the stator, the cooling jacket including at least one conduit adapted to receive a coolant therein, thereby minimizing a complexity and a cost of manufacture of the stator assembly, and maximizing a cooling capability of the stator assembly. | 11-13-2008 |
20080284262 | STATOR COIL WITH IMPROVED HEAT DISSIPATION - A stator coil includes a plurality of copper strands and a layer of high thermal conductivity polymer disposed adjacent at least one of the copper strands. The high thermal conductivity polymer includes a host polymer and a high thermal conductivity filler. The high thermal conductivity polymer improves heat transfer from the plurality copper strands. | 11-20-2008 |
20080309173 | MOTOR - In a motor, an insulator covering an armature core has a lid covering an end surface of the armature core. The lid has an inner ring disposed radially inside slots of the armature core and an outer ring disposed radially outside the slots. Each of a plurality of slot insulators inserted into the slots has a blocking portion at a position in the inner ring. | 12-18-2008 |
20080315692 | Electric Motor - The present invention relates to an electric motor ( | 12-25-2008 |
20090001827 | ELECTRIC MACHINE AND METHOD FOR DETERMINING THE AXIAL POSITION OF BEARINGS FOR A ROTOR OF THE MACHINE - An electric machine contains a rotor which contains a first longitudinal section at the ambient air temperature and a second longitudinal section cooled at least partially to cryogenic temperature, a coolant inlet pipe extending into the second longitudinal section, wherein the inlet pipe is set at a distance from the rotor by a radial gap, wherein the inlet pipe in the first longitudinal section is mounted by at least two bearings, wherein the bearings are distributed on axial positions in such a way that upon action of a maximum radial force on the inlet pipe the pipe has a maximum deflection which is smaller than the radial gap. In a method for determining the axial positions, various batches of potential locations are chosen for the axial positions of the bearings, according to potential locations which has a minimum gap greater than zero. | 01-01-2009 |
20090039718 | Method for Accomodating an Electric Motor - The invention relates to a device ( | 02-12-2009 |
20090045686 | Heat Pipe-Equipped Cooling Device for a Rotating Electric Machine - A cooling device comprising a heat pipe ( | 02-19-2009 |
20090102298 | Cooling housing for an electric device - A fluid-cooled electric device such as a generator, alternator or motor is provided with a housing that includes an outer surface defining an exterior of the device and an inner surface that defines a housing cavity with a longitudinal axis, and which may have an end wall enclosing one end of the housing cavity wherein the end wall is continuous with the inner surface. Integral to the housing is a helical cooling conduit, which may have a rectangular configuration, disposed along the axis between the inner and outer surfaces of the housing. | 04-23-2009 |
20090115267 | Machine Based on Superconducting Technology Support Elements - The machine contains a rotor with a hot rotor housing in which a cold part with a superconductive rotor winding is located. A part which acts as a baffle screen is provided on the outside of the rotor housing, facing a stator. Supporting elements are intended to be provided at predetermined points between the hot housing and the cold part, extending in the radial direction to such an extent that, during normal operation of the machine, a short separation is in each case formed between the supporting elements and the hot housing or the cold part, and such that a force fit is prodiced between the hot housing and the cold part via the supporting elements only in the event of a defect which leads to deformation of the hot housing of the machine. | 05-07-2009 |
20090115268 | Cooling Assembly for Large Diameter Electric Machines - A cooling assembly to be positioned inside an internal stator of an electric machine is described herein. The cooling assembly includes a plurality of cooling segments that may be so mounted to a support structure as to be biased towards an inner surface of the stator. | 05-07-2009 |
20090121561 | Machine System with Thermosyphon Cooled Superconductor Rotor Winding - A machine has a rotor, that can be rotated about an axis, with a superconductive winding that is coupled in a heat-conducting manner to a central coolant area of a fixed heat conducting body proturding into a hollow of the rotor via a winding carrier and a heat contact gas. The coolant area forms a line system with the line parts thereof, that are laterally connected thereto, and a condenser area of a cold unit, in which a coolant circulates in the line system as result of a thermosiphon effect. To maintain the supply of coolant to the central coolant area, even when the rotor encounters difficulties, the coolant area is provided with a lining of a porous material, preferably a sinter material, having high thermal conductivity. | 05-14-2009 |
20090160269 | Electromotor - The invention refers to an electromotor. This consists of a rotor rotatably running on bearings on a rotor shaft and a stator surrounding the rotor. The stator has a short-circuit body and a winding which can be impinged by current. The short-circuit body receives at least partly the medium line(s). | 06-25-2009 |
20090160270 | ELECTRIC MOTOR FOR DENTAL OR MEDICAL INSTRUMENT - The present invention relates to an electric motor for the drive of a dental or medical instrument, with a rotor magnet mounted on a shaft, as well as with a stator and media conduits for leading through media to the dental instrument. A Gramme stator winding is provided in the electric motor, wherein at least regionally, media conduits run within the stator winding or between individual sections of the stator winding. The electric motor according to the invention is distinguished by a very compact constructional manner, by which the operator may work without getting tired, even over a long period of time. | 06-25-2009 |
20090160271 | FLEXIBLE-TUBING MOTOR - The present invention relates to a flexible-tubing motor for coupling dental instruments, containing a motor with a stator, with a rotor as well as with a coupling for coupling dental instruments, as well as a flexible tubing, wherein media conduits are led through the flexible tubing for the supply of media to the dental instrument, and the flexible tubing at the end which is distant to the motor may be connected to a drive and control unit for supplying and regulating media. The flexible-tubing motor according to the invention is distinguished by a very compact constructional manner, by which the operator is permitted to work without tiring, even over a long period of time. | 06-25-2009 |
20090174267 | Electromotor or generator - The invention refers to an electromotor for conveying gas and/or liquid media. The invention refers also to a generator. The electromotor or the generator has a rotor with a rotor magnet. The rotor is surrounded by a stator. The stator has at least one stator groove limited by a stator tooth. At least a part of the stator groove serves as medium passage opening. | 07-09-2009 |
20090184590 | STATOR OF ROTATING ELECTRIC MACHINE - A stator of a rotating electric machine is obtained, in which material usage in a conductor connection section of a stator coil end and weight of the conductor connection section are reduced, so that vibration suppression is improved, in addition, thermal resistance between a loss occurrence portion and a cooled portion becomes smaller so that temperature rise is suppressed. It is configured that a stator has first and second wire groups disposed at an inner diameter side of a slot, third and fourth wire groups disposed at an outer diameter side of the slot, and a connection conductor for connecting the respective, two wire groups to each other in a radial direction, wherein the stator further has a connection conductor which has one end being interposed between projected ends of the first and second wire groups, and connected to the respective projected ends, and has the other end being interposed between projected ends of the third and fourth wire groups, and connected to the respective projected ends, in addition, has axial through-holes, which communicate with flow paths of coolant flow members provided between the wire groups, in the one end and the other end respectively. | 07-23-2009 |
20090251014 | Low heat leak, high torque power shaft for cryogenic machines - A shaft assembly and method for reducing the heat leak into the cryogenic region of a superconducting electrical machine comprising a rotor shaft extension assembly capable of transmitting large amounts of torque with substantially increased thermal impedance. The shaft assembly contains a plurality of concentric structural cylinders composed of high strength, low thermal conductivity structural materials. The structural cylinders are connected in series by means of welded joints or strong interlocking “finger” connections, in such a way that the coldest cylinder is connected to the cryogenic machine. An optional intermediate heat sink that allows the shaft extension member to rotate freely within the confines of the heat sink further reduces the heat leak into the cryogenic environment. Splined adapter hubs are typically used to connect the cylinder assembly to the rotor of the superconducting machine and the external device. | 10-08-2009 |
20090267425 | MACHINE HAVING AN UNCOOLED ROTOR BODY AND A COOLED ROTOR WINDING, AS WELL AS AN ASSOCIATED HOLDING AND/OR SUPPORTING DEVICE - The invention relates to a machine with an uncooled rotor, which is mounted such that it is capable of rotating about an axis of rotation and which has cutouts or flattened portions on its outside. At least one rotor winding, which is accommodated in a cryostat with a cryostat wall and is to be cooled to low temperature, should be arranged in the cross-sectional area region of these flattened portions. A holding and/or support device is used for transmitting forces acting on the rotor winding beyond the cryostat wall to the rotor body. In order to reduce losses in the cooling system which occur as a result of thermal conduction, the holding and/or support device should contain at least one support element, which is equipped with means for reducing the thermal conductivity. | 10-29-2009 |
20090309430 | AFPM CORELESS MULTI-GENERATOR AND MOTOR - The present invention relates to an AFPM coreless multi-generator and motor. The present invention is characterized in that the stator includes coils arranged between upper and lower jig plates made of a non-magnetic material, cooling insulating oil is filled in a space where the coils are mounted between the upper and lower jig plates and is sealed by both lateral plates, and one of the both lateral plates is fixedly coupled to the housing of the generator so as to allow the housing to perform thermal conduction. Also, the rotor includes magnets arranged on a rotor disc in a circular arc shape and a yoke element formed integrally with the rotor disc near a central portion thereof in such a fashion as to vertically protrude by a predetermined height. The rotor disc is fixedly mounted to the rotary shaft, and the yoke element is engaged with a yoke element of another rotor correspondingly adjacent to the rotor so as to allow the engaged yoke elements to serve as a passageway of a magnetic field. The rotor and stator are configured in a multi-structure. The present invention can be applied to a motor having the same structure as that of the generator. | 12-17-2009 |
20090309431 | APPARATUS FOR USING AN ELECTRICAL MACHINE TO TRANSPORT FLUIDS THROUGH A PIPELINE - A stator for an electrical machine includes teeth assembled from a plurality of stacked laminations mounted on a cylindrical protective surface thereby forming a plurality of slots. The stator also includes an armature winding assembled within the teeth by inserting components of the armature winding into the plurality of stator slots from positions external to the teeth in a manner that facilitates mitigating potential for coil distortion. The armature winding includes a plurality of coils that each include an end winding. The stator further includes a segmented yoke inserted around the armature winding in a manner that facilitates mitigating a potential for disturbing the end winding of the coils. Independently assembling the stator components in this manner facilitates varying a thickness and/or the number of heat conducting laminations between the yoke and teeth that subsequently facilitates heat transfer from the armature winding to an outer pressure casing of the machine. | 12-17-2009 |
20100019588 | ROTATING ELECTRIC MACHINE AND MANUFACTURING METHOD THEREOF - In the rotating electric machine of the present invention, a groove, in which a load side coil end is inserted, is formed on a load side bracket; a ceramic coat is formed on the inner surface of the groove; and one or more surfaces including at least the end surface of the load side coil end among the inner circumferential surface, outer circumferential surface, and end surface of the load side coil end adhere closely to the inner surface of the groove, in which the coat is formed. | 01-28-2010 |
20100019589 | SLOT CONFIGURATION OF AN ELECTRIC MACHINE - A stator includes an elongate core defining an inner volume to receive a rotor of an electric machine. The core includes a yoke and an array of teeth extending from the yoke toward the inner volume. The array of teeth defines slots between each pair of adjacent teeth in the array. Each slot includes a first slot region adapted to hold at least a portion of a conductive winding and a second slot region adapted to hold at least a portion of a conductive winding. The first slot region is defined by two non-parallel opposing slot side portions, and the second slot region is defined by two parallel opposing slot side portions. | 01-28-2010 |
20100033037 | Shielding of superconducting field coil in homopolar inductor alternator - A superconducting field coil assembly includes a superconducting field coil disposed within a vacuum insulated electro-magnetic (EM) shielded cryostat. A water cooling jacket is thermally integrated with the outer surface of the EM shielded cryostat. | 02-11-2010 |
20100060089 | DEVICE FOR COOLING CURRENT LINES OF SUPERCONDUCTING ROTATING MACHINE - A cooling device for current lines of a superconducting rotating machine, which is capable of removing heat generated from the current lines of the superconducting rotating machine, thereby effectively preventing a superconducting coil from being deformed due to the heat generated from the current lines, is disclosed. The cooling device includes heat conduction members respectively mounted to outer surfaces of the current lines. Each heat conduction member is in contact with an inner peripheral surface of the stator such that the heat conduction member transfers, to the stator, heat generated from a corresponding one of the current lines. The heat conduction member further includes insulators each surrounding a corresponding one of the current lines between a corresponding one of the heat conduction members and a power slip ring arranged in the stator, to thermally insulate the heat generated from the corresponding current line. | 03-11-2010 |
20100102647 | ELECTRIC MOTOR/GENERATOR LOW HYDRAULIC RESISTANCE COOLING MECHANISM - The present disclosure, in one form, provides an electric motor/generator low hydraulic resistance cooling mechanism including a hollow cooling stator case having an inner and outer coaxial surface. The inner surface defines a generally cylindric cavity for receiving a stator in heat transference contact with the inner surface. The outer surface has integrated spiral groove cooling passages that are defined by filleted rectangular cross sections. | 04-29-2010 |
20100102648 | ENHANCED THERMAL CONDUCTIVITY MATERIAL IN ANNULAR GAP BETWEEN ELECTRICAL MOTOR STATOR AND HOUSING - A submersible electric motor has feature to enhance thermal conductivity from the motor interior to the exterior. The motor has a cylindrical housing and a stator rigidly mounted within housing. A rotatable rotor is located within the stator. A gap formed between the stator's outer diameter and the inner wall of the housing is filled with a high thermal conductivity material to improve heat transfer from the motor. The remaining portion of the housing may be filled with a dielectric lubricant that has lesser thermal conductivity than the high thermal conductivity material. | 04-29-2010 |
20100148600 | Fluid dynamic bearing system - The fluid dynamic bearing system according to the invention for the rotatable support of an electric motor comprises a substantially cylindrical bearing bush having a bearing bore, a shaft rotatably supported about a rotational axis accommodated in the bearing bore, a bearing gap formed between mutually adjacent surfaces of the bearing bush and the shaft that is filled with a bearing fluid and extends in an axial direction parallel to the rotational axis, at least one radial bearing that is disposed along the bearing gap and formed by bearing surfaces of the bearing bush and the shaft, and at least one axial bearing that is formed as a magnetic bearing. | 06-17-2010 |
20100156206 | ALTERNATOR - A rectifier of an alternator according to the present invention includes: a first heat sink; first unidirectional conducting element bodies that are disposed on a front surface of the first heat sink so as to be spaced apart; a second heat sink that is disposed so as to be separated from the first heat sink; second unidirectional conducting element bodies that are disposed on a front surface of the second heat sink so as to be spaced apart; and a circuit board that has a circuit board terminal by which the first unidirectional conducting element bodies and the second unidirectional conducting element bodies are connected so as to constitute a bridge circuit, and a terminal connection portion is configured by respectively connecting first terminals of the first unidirectional conducting element bodies and second terminals of the second unidirectional conducting element bodies adjacently in a common plane with the circuit board terminal. Thus, connection workability between the first terminals of first unidirectional conducting element bodies and the circuit board terminal and between the second terminals of second unidirectional conducting element bodies and the circuit board terminal is improved. | 06-24-2010 |
20100176667 | ELECTRICAL MACHINE HAVING A SUPERCONDUCTING ROTOR WINDING - The invention relates to an electric machine ( | 07-15-2010 |
20100194218 | STATOR WINDING HEAT SINK CONFIGURATON - In one possible implementation, a motor is provided including a rotor and a stator. Front cooling fins are thermally coupled to a front of the stator, and rear cooling fins are thermally coupled to a rear portion of the stator. The winding is between the front and rear cooling fins. | 08-05-2010 |
20100237722 | MOTOR CONNECTING BOX AND CONVERTER MOTOR - In a converter motor, the converter electronics are integrated into the motor connecting box. The lower part of the motor connecting box is formed in one piece with a housing of the converter motor and at the front end than at the rear end. The edge of the upper part of the motor connecting box is shaped appropriately slantwise, so that the upper side is aligned to be straight. Connecting cables for power current and data communications issue from a stepped gradation in the upper part. The upper part has a plurality of openings for passing through cables which are oriented at an angle of less than 90° to one another and to the motor axis. | 09-23-2010 |
20100244593 | HOLDING APPARATUS FOR ELECTRICAL COMPONENTS OF A FIELD CIRCUIT WHICH ARE ARRANGED IN THE INTERIOR OF A ROTOR BODY, AS WELL AS A ROTOR HAVING A HOLDING APPARATUS SUCH AS THIS - The invention relates to a retaining device ( | 09-30-2010 |
20100259117 | Dual armature motor/generator with flux linkage between dual armatures and a superconducting field coil - The present invention relates to cylindrical rotating electric machines which comprise armature and field coils, with either the field coil or the dual armature being the rotating component. The dual armature is composed of two concentric cylindrical sets of coils with the field coil situated in the gap between the inner and outer armature sections. Relative rotational motion between the field and armature coils can be achieved by having either one be the rotor. By using two armature coil sections, one inside the field coil aperture and the other external to the field coil, the flux linkage between the armature and superconducting field coil can be approximately doubled. This is a more efficient use of the superconductor. The increased flux linkage in the invented technology produces a substantially higher power density than can be obtained with current conventional superconducting machine technology. | 10-14-2010 |
20100320849 | ELECTRONIC DRIVE UNIT - An electronic drive unit includes a case housing that extends along a primary axis. A sleeve shaft and an electric motor are disposed in the hollow interior of the case housing. The electric motor is operatively connected to the sleeve shaft to rotate the sleeve shaft about the primary axis. At least one gear set is disposed in operative engagement with the sleeve shaft and is configured for rotation about the primary axis. A pair of output shafts each extends along the primary axis within the case housing. The output shafts are rotatably connected to the gear set and are configured for rotation about the primary axis. The gear set is configured to translate rotation of the sleeve shaft into rotation of the output shafts about the primary axis at a rotational velocity that is less than the rotational velocity of the sleeve shaft. | 12-23-2010 |
20110025143 | CONTROLLER FOR AC GENERATOR - A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp generator for generating control signals to a switching rectifier to generate a regulated DC signal. | 02-03-2011 |
20110043058 | ELECTRIC MOTOR - The electric motor ( | 02-24-2011 |
20110068643 | Voltage Grading Structure in a High-Voltage Stator Coil of an Electromotive Machine - A voltage grading structure ( | 03-24-2011 |
20110215659 | ELECTRIC MACHINE - An electric generator, comprising a stator and a rotor, the stator having a stator winding (multiple phase windings), which is electrically connected to a rectifier, the recitifier having positive and negative diodes connected by way of a bridge circuit, the positive diodes being connected to a positive cooling body and the negative diodes being connected to a negative cooling body (plugged in or welded), and the rectifier being covered by a protective cap ( | 09-08-2011 |
20110234028 | ROTARY ELECTROMOTOR - There is disclosed a rotary electromotor including a stator, a stator winding on the stator, a stator frame, a rotator, end covers, and a highly heat-conductive member. The stator has a plurality of magnetic poles. The stator frame supports the stator. The rotator is supported by the stator with a gap therefrom such that the rotator is rotatable. The end covers close opposite ends of the stator frame. The highly heat-conductive member is fixed by a resin material in a space defined inside the stator, the stator frame, and the end covers. | 09-29-2011 |
20110254391 | ELECTRICAL MOTOR HAVING RADIALLY OFFSET COOLING STREAM AND COOLING METHOD - The rotor of an electrical motor should be designed simply and able to be efficiently cooled. To this end, the invention relates to an electrical motor having a rotor that has at least one radial cooling slot ( | 10-20-2011 |
20110278967 | ROTOR FOR ELECTRIC ROTATING MACHINE - A rotor for an electric rotating machine includes a hollow cylindrical rotor core, a plurality of permanent magnets, at least one annular plate and a plurality of heat conductors. The rotor core has a pair of axial end faces that are opposite to each other in the axial direction of the rotor core. The permanent magnets are embedded in the rotor core so as to be spaced from one another in the circumferential direction of the rotor core. The at least one annular plate is disposed in abutment with a corresponding one of the axial end faces of the rotor core. The heat conductors are embedded in the rotor core. Each of the heat conductors extends so as to have an end thereof abutting the at least one annular plate. | 11-17-2011 |
20110285219 | Electrical Machine with Superconducting Armature Coils and Other Components - The present application and the resultant patent provide a superconducting electrical machine. The superconducting electrical machine may include an armature coil made of a high temperature superconducting material, a cooling system, and a field coil. The cooling system may include a cryostat surrounding the armature coil and a foam insulation surrounding the cryostat. | 11-24-2011 |
20110304226 | Electric Machine Cooling System and Method - Embodiments of the invention provide an electric machine module and a method for cooling an electric machine. The electric machine module comprises the electric machine including a stator with stator end turns and a housing with at least two removably-coupled frame members. Each of the at least two removably-coupled frame members include an inner wall, an outer wall, and a coolant cavity defined between the inner wall and the outer wall. The coolant cavity can be positioned substantially around one of the stator end turns radially and substantially beside the one stator end turn axially. | 12-15-2011 |
20110304227 | Electric Machine Cooling System and Method - Embodiments of the invention provide an electric machine module and a method for cooling an electric machine. The electric machine module comprises the electric machine including a stator with stator end turns, a through bolt, and a housing with at least two removably-coupled frame members. Each of the at least two removably-coupled frame members include an inner wall, an outer wall, a coolant cavity defined between the inner wall and the outer wall, and a bolt channel. The coolant cavity can be positioned substantially around at least one of the stator end turns radially. The bolt channel can be positioned through a portion of each of the at least two removably-coupled frame members and can be located radially inward from an outer substantially circular periphery of the housing. | 12-15-2011 |
20120025638 | APPARATUS FOR COOLING AN ELECTRIC MACHINE - Provided is an apparatus, for example, for use with a rotating electric machine, that includes a housing. The housing can include a housing main portion and a housing end portion. The housing main portion can be configured to be disposed proximal to a body portion of a stator section of an electric machine. The housing main portion can define a main fluid channel that is configured to conduct fluid therethrough. The housing end portion can receive fluid from said main fluid channel and direct fluid into contact with a winding end portion of a conductive winding of the stator section. | 02-02-2012 |
20120062054 | PERMANENT MAGNET ROTOR FOR ELECTRIC MACHINE - A permanent magnet rotor assembly for an electric machine includes a rotor core including one or more axially-extending openings and one or more permanent magnets located in the one or more axially-extending openings defining one or more gaps between the one or more permanent magnets and the one or more axially-extending openings. One or more thermally-conductive bars are located in the one or more gaps to transfer thermal energy from an interior of the rotor assembly toward an axial end of the rotor assembly. | 03-15-2012 |
20120068560 | ARRANGEMENT OF CONDUCTING BAR ENDS - An arrangement includes conducting bar ends connected together and a cap) covering them filled with a putty. The cap is made of a resin containing a high thermal conductivity filler. The putty is a silicone elastomer containing a high thermal conductivity filler. | 03-22-2012 |
20120098360 | SYSTEM HAVING FIBER OPTIC PURITY SENSOR - A system includes an electrical generator comprising a stator, a rotor, and a gas coolant path through an interior of the electrical generator and at least one fiber optic purity sensor configured to sense a gas purity of a flow of a gas coolant through the gas coolant path. | 04-26-2012 |
20120098361 | DRIVE APPARATUS - A heat sink has two heat radiation blocks. The heat radiation block is formed in a wide column shape. The heat radiation block has connection parts at both ends. The connection parts have respective holes formed to pass through in the axial direction of a motor. One screw is inserted in one connection part and threaded into a motor case. The other screw is inserted in the other connection part and threaded into the motor case together with a cover. A power module forming an inverter circuit of each of two power supply systems is arranged on each heat radiation blocks. | 04-26-2012 |
20120119601 | MOTOR WITH SPEED REDUCTION MECHANISM - In a brush holder accommodating part | 05-17-2012 |
20120286594 | MOTOR DRIVE APPARATUS - An ECU attached to a motor assembly has a substrate and a heat sink. The substrate mounts thereon a microcomputer, which controls driving of a motor in accordance with a rotation angle of the motor. The substrate is fixed to the heat sink. The substrate has a first through hole group and a second through hole group, which are through holes connectable electrically by soldering to rotation angle signal wires connected to a rotation angle sensor, which detects a rotation angle of the motor. | 11-15-2012 |
20120306299 | SEMICONDUCTOR MODULE AND DRIVING APPARATUS INCLUDING SEMICONDUCTOR MODULE - In a semiconductor module, a high-potential side conductor includes a wide section on which the high-potential side switching element is mounted, a high-potential side terminal coupled with a high potential source, and a narrow section extending from the wide section to the high-potential side terminal in a first direction. The wide section is wider than the narrow section in a second direction perpendicular to the first direction. The wide section has a first side and a second side opposite to the first side in the second direction. A distance between the first side of the wide section and a low-potential side conductor is shorter than a distance between the second side of the wide section and the low-potential side conductor. The narrow section extends from a portion of the wide section closer to the first side than the second side. | 12-06-2012 |
20130015728 | Electric Machine Module Cooling System and MethodAANM Chamberlin; Bradley D.AACI PendletonAAST INAACO USAAGP Chamberlin; Bradley D. Pendleton IN USAANM Ramey; James J.AACI FortvilleAAST INAACO USAAGP Ramey; James J. Fortville IN USAANM Creviston; Alex S.AACI MuncieAAST INAACO USAAGP Creviston; Alex S. Muncie IN US - Embodiments of the invention provide an electric machine module comprising a module housing. In some embodiments, the module housing can include a sleeve member and at least one end cap. Also, an inner wall of the module housing can at least partially define a machine cavity. In some embodiments a coolant jacket can be positioned within a portion of the sleeve member. Further, in some embodiments, at least one partition can be positioned substantially within the coolant jacket. The partition can be dimensioned to at least partially seal a first region of the coolant jacket from a second region of the cooling jacket. | 01-17-2013 |
20130020888 | ELECTROMAGNETIC COMPONENT FOR A STATOR SEGMENT OF AN ELECTRICAL MACHINE - An electromagnetic component for mounting in a framework | 01-24-2013 |
20130057093 | GENERATOR AND ACCESSORY GEARBOX DEVICE WITH A GENERATOR - The present invention proposes a generator for arrangement on a shaft of an accessory gearbox of an engine with a stator and with a rotor which can be coupled to a shaft of the accessory gearbox of the engine and which is rotatably mounted relative to the stator, where a stator area receiving the stator can be separated from a rotor area receiving the rotor. The rotor can be supplied with cooling medium in the rotor area. It furthermore proposes an accessory gearbox of an engine with a drive shaft operatively connectable to a main shaft of the engine and with at least one generator arranged on a shaft of the accessory gearbox. | 03-07-2013 |
20130069454 | Motor Drive Apparatus - A motor drive apparatus includes a motor; and an ECU. The ECU includes an ECU housing. The ECU housing includes a heat sink having a module receiving portion. The module receiving portion includes a heat-receiving surface and an opening portion open to one-end side of the ECU housing. The ECU further includes a control substrate received by the ECU housing to be perpendicular to the heat-receiving surface and to face the motor; a plurality of semiconductor modules each received in the module receiving portion and connected electrically with the control substrate to control a power supply of the motor. Each of the plurality of semiconductor modules includes a heat-radiating surface at an outer portion thereof. The ECU further includes a module retaining section pressing the heat-radiating surface to the heat-receiving surface to retain each of the plurality of semiconductor modules in the module receiving portion. | 03-21-2013 |
20130093270 | HIGH TEMPERATURE ENVIRONMENT CAPABLE MOTOR CONTROLLER - A motor controller for use in an environment at a high maximum environmental temperature comprises an insulated chassis, a high-temperature capable electronic component, a low-temperature capable electronic component, and a heat pump. The high-temperature capable electronic component is rated for temperatures higher than the environmental temperature, whereas the low-temperature capable electronic component is rated for temperatures lower than the maximum environmental temperature. The insulated chassis has a finned surface to which the high-temperature capable electronic component is mounted. The low-temperature capable electronic component is attached to or integrated into a printed wiring board supported inside the insulated chassis by the thermally conductive posts. The heat pump is configured to draw heat from the low-temperature capable electronic component through the thermally conductive posts and a thermal spreader abutting the heat pump, and to expel heat into the finned surface of the insulating chassis. | 04-18-2013 |
20130099609 | BRUSHLESS MOTOR - A brushless motor includes: a motor case | 04-25-2013 |
20130106210 | MOTOR INCLUDING HEAT RADIATING RESIN | 05-02-2013 |
20130134807 | Generator Motor and Work Machine - A generator motor connected to an output shaft of an engine mounted in a work machine includes a terminal box that houses a connector for connecting an exterior electric-power-supplying cable to the generator motor. While the terminal box is provided to the generator motor, the connector is provided facing downward and the electric-power-supplying cable is connectable to the connector from underneath the connector. | 05-30-2013 |
20130154407 | CONTROLLER-INTEGRATED ELECTRIC ROTATING MACHINE - A controller-integrated electric rotating machine according to the present invention is provided with a heat sink on which a plurality of power modules included in an electric-power conversion circuit are mounted, a power-input/output conductor that is fixed to a bus bar electrically connected with a DC power source and is electrically connected with the DC power source and the bus bar, and a case, made of an insulator, that is fixed to the heat sink and is provided with a terminal that is electrically connected with the bus bar and the plurality of power modules; the bus bar is provided with a single electric connection portion and at least one mechanical connection portion other than the electric connection portion, electrically connected with the terminal by means of the single electric connection portion, and mechanically connected with the heat sink or the bracket through an insulating material by means of the at least one mechanical connection portion. | 06-20-2013 |
20130169076 | ELECTRIC MACHINE COOLING SYSTEM - A cooling system for an electric machine is provided. The cooling system includes an airflow restriction feature configured to provide airflow to a radial air channel of the electric machine. | 07-04-2013 |
20130181552 | SUPERCONDUCTING ELECTRICAL MACHINE HAVING A CONNECTION DEVICE FOR AXIAL EXPANSION COMPENSATION OF A WINDING FORMER - A superconducting electrical machine includes a rotor with a rotor outer housing surrounding a winding support having a superconducting winding. The rotor has on a torque-transmitting side a first, rigid connection device between the winding support and the rotor outer housing and on the opposite side a second connection device which compensates for axial expansion of the winding support. The second connection device has an axially extending connection element which is on one end connected rigidly to the winding support and which has on the opposite free end an axially moving, radially force-fitting connection to a centering holding element of the rotor outer housing. The holding element includes a bushing through the rotor outer housing, through which the free end of the connection element of the second connection device passes. The superconducting winding is cooled and thermally insulated. | 07-18-2013 |
20130187489 | AXIAL GAP TYPE GENERATOR - There is provided an axial gap type generator exhibiting improved precision in positioning stator cores. An axial gap type generator comprises a generator case fixed to a crank case of an engine, a rotor yoke housed inside the generator case, and fixed to a crankshaft of the engine, and a first stator core and a second stator core fixed to generator case inner faces, and disposed flanking the rotor yoke in a rotation axis direction. The generator case is configured through direct connection of a first member to which the first stator core is fixed and a second member to which the second stator core is fixed. | 07-25-2013 |
20130187490 | ELECTRIC MOTOR WITH A POWER OUTPUT STAGE AND WITH EFFICIENT HEAT TRANSPORT AND METHOD - The invention relates to an electric motor, in particular an electronically commutated electric motor. The electric motor has a stator, a rotor and a housing, which accommodates at least the stator and the rotor in a cavity. The electric motor also has a power output stage, which is connected to the stator and is designed to energize the stator in order to induce a rotating magnetic field. The power output stage has at least one power semiconductor with a thermal contact area, wherein the thermal contact area is thermally conductively connected to the housing, with the result that heat generated in the power semiconductor can be dissipated to the housing. According to the invention, the housing has a housing cup, which at least partially surrounds the cavity and is preferably thermally conductive and which has a cup wall, wherein the cup wall has a mating contact area corresponding to the thermal contact area. | 07-25-2013 |
20130193785 | ELECTRIC MOTOR, IN PARTICULAR ACTUATOR MOTOR OR DRIVE MOTOR IN MOTOR VEHICLES - An electric motor has a stator and a coil which is arranged within the stator housing and whose winding can be energized via a connection line system. A cooling plate is arranged outside the interior of the stator, and on the outer side of said cooling plate a carrier plate for motor electronics is arranged, to which carrier plate the connection line system is connected. The connection line system is led from the inside to the outside through a recess in the cooling plate and is electrically connected to the carrier plate. | 08-01-2013 |
20130257190 | IPM MACHINE WITH THERMALLY CONDUCTIVE COMPOUND - A synchronous electric machine includes a rotor having a substantially cylindrical core with axially extending slots, a plurality of permanent magnets configured as sets defining alternating poles in a circumferential direction, the permanent magnets being located in respective ones of the slots, and a thermally conductive material contiguous with the permanent magnets and the core for transferring heat of the permanent magnets, the material having a thermal conductivity of greater than 0.3 watts per (meter * Kelvin). | 10-03-2013 |
20130257191 | DRIVE APPARATUS - A drive apparatus includes a motor unit and an electronic control unit. The motor unit includes a first end frame, a second end frame, a stator, a rotor and a shaft. The control unit controls driving of the shaft. An outer wall surface of the stator is exposed between the first end frame and the second end frame. The stator is thus enabled to contact outside air directly so that heat radiation characteristic of the stator is improved. | 10-03-2013 |
20130257192 | MOTOR DRIVE APPARATUS - A motor drive apparatus includes a motor having a shaft, an end frame, and a control unit having a heat sink. The end fame and the heat sink are arranged to overlap at least partly when the end frame and the heat sink are projected on a plane, which is parallel with a rotation axis of the shaft. This arrangement improves heat radiation performance of the motor drive apparatus. | 10-03-2013 |
20130257193 | DRIVE APPARATUS AND METHOD FOR MANUFACTURING THE SAME - A motor drive apparatus includes a heat sink, on which a power module is disposed. A control circuit board and a power circuit board are disposed on axially opposite sides of the heat sink. A component carrier is disposed close to the power circuit board at a side opposite to an output part of a motor case. An electric connector is extended from the component carrier, passed through a hole of a cover and extended to an outside opposite to the output part. Even in a case where a mounting space is limited in a radial direction of the motor case, the electric connector can be easily connected to an external connector of a vehicle. | 10-03-2013 |
20130257194 | MOTORIZED EQUIPMENT - A power module, a control board and a heat sink are provided on one axial side of a shaft of an electric motor, which consists of a motor case, a stator, a rotor, the shaft and the like. The power module is electrically connected with extraction lines, which extend from a coil wound around the stator, and supplies a drive current to the coil. The control board for controlling switching of the power module is provided on a motor case side of the power module. The heat sink is provided on a side of the control board opposite to the motor case. Thus, when setting of an output of the electric motor is changed, a body size of the heat sink can be changed without changing a positional relationship between the control board and the electric motor and a positional relationship between the power module and the electric motor. | 10-03-2013 |
20130270935 | FORCE MODULATOR - This invention relates to an inductor, more particularly, to an inductor with variable inductances. | 10-17-2013 |
20130278088 | STATOR FOR AN ELECTRIC MACHINE HAVING END WINDINGS PRESSED INTO A HOUSING | 10-24-2013 |
20130293040 | ELECTRIC MACHINE MODULE COOLING SYSTEM AND METHOD - Embodiments of the invention provide an electric machine module. The module can include a housing that can define a machine cavity. The housing can include a sleeve member that can include a first axial sleeve member comprising a first flange, a second flange, and first recess at least partially defined between the first flange and the second flange. The sleeve member can also include a second axial sleeve member comprising a third flange, a fourth flange, and a second recess at least partially defined between the first flange and the second flange. The first axial sleeve member can be coupled to the second axial sleeve member to form the sleeve member and so that the first recess and the second recess form a coolant jacket. An electric machine can be positioned within the machine cavity so that it is substantially circumscribed by a portion of the coolant jacket. | 11-07-2013 |
20130293041 | ELECTRIC MACHINE - An electric machine for a current generating unit configured to extend the range of an electric vehicle. The electric machine includes a cylindrical housing part produced by casting, which is configured to accommodate a stator and a rotor. The cylindrical housing part contains at least one cooling channel arrangement through which a coolant flows. | 11-07-2013 |
20130334910 | ROTOR FOR ELECTRIC ROTATING MACHINE AND METHOD OF MANUFACTURING THE SAME - A rotor for an electric rotating machine includes a hollow cylindrical rotor core and a plurality of magnets. The rotor core has a plurality of magnet-receiving holes formed therein. Each of the magnet-receiving holes has a plurality of wall surfaces including a radially innermost wall surface which is positioned radially innermost among the plurality of wall surfaces. Each of the magnets is received in a corresponding one of the magnet-receiving holes of the rotor core. Further, each of the magnets is arranged in the corresponding magnet-receiving hole so that among the thermal resistances between the magnet and the plurality of wall surfaces of the corresponding magnet-receiving hole, the thermal resistance between the magnet and the radially innermost wall surface of the corresponding magnet-receiving hole is lowest. | 12-19-2013 |
20140001893 | ELECTRIC MACHINE AND SYSTEMS COMPRISING THE SAME | 01-02-2014 |
20140021811 | PERMANENT MAGNET (PM) ELECTRIC MACHINE INCLUDING PERMANENT MAGNETS PROVIDED WITH A SACRIFICAL COATING HAVING A THERMAL INTERFACE MATERIAL (TIM) - A permanent magnet electric machine including a housing, a stator mounted within the housing, and a rotor assembly rotatably mounted within the housing relative to the stator. The rotor assembly includes a plurality of laminations. Each of the plurality of laminations includes a plurality of slots and one or more permanent magnets mounted within respective ones of the plurality of slots. Each of the plurality of permanent magnets includes a sacrificial coating formed from a thermal interface material (TIM). | 01-23-2014 |
20140028122 | INDEX DEVICE OF MACHINE TOOL AND METHOD OF MANUFACTURING SAME - An index device of a machine tool is driven by a motor. Gap space created between the outer periphery of the motor and the inner periphery of a casing for housing the motor is filled with a material that is higher in thermal conductivity than the air. With this configuration, heat to be generated during operation of the motor of the index device is efficiently transferrable to the motor housing casing. | 01-30-2014 |
20140042840 | PERMANENT MAGNET (PM) ELECTRIC MACHINE INCLUDING PERMANENT MAGNETS PROVIDED WITH A THERMAL INTERFACE MATERIAL (TIM) BETWEEN ADJACENT PERMANENT MAGNETS - A permanent magnet electric machine includes a housing, a stator mounted within the housing, and a rotor assembly rotatably mounted within the housing relative to the stator. The rotor assembly includes a rotor body having a plurality of rotor laminations. A plurality of permanent magnets having axial end portions is mounted to the rotor body. An amount of thermal interface material (TIM) is arranged between the axial end portions of adjacent ones of the plurality of permanent magnets. | 02-13-2014 |
20140062227 | APPARAUS AND METHOD FOR INDUCTION MOTOR HEAT TRANSFER - A heat sink apparatus for induction motors and other dynamoelectric machines. The heat sink has a mounting portion adapted for coupling to a motor housing. A first heat sink portion is adapted for insertion into a motor housing interior, such as through an aperture in the frame or bearing bracket, and is thermally coupled to a second heat sink portion that is adapted for orientation outside the housing. The heat sink apparatus first heat sink portion may be inserted within an air channel of a TEFC induction motor. The heat sink preferably has a higher heat transfer rate than the motor housing. | 03-06-2014 |
20140070635 | PERMANENT MAGNET ELECTRIC MACHINE INCLUDING PERMANENT MAGNETS HAVING A SLEEVE FORMED FROM A THERMAL INTERFACE MATERIAL - An electric machine includes a housing, a stator fixedly mounted relative to the housing, and a rotor assembly rotatably mounted relative to the stator. The rotor assembly includes a plurality of rotor laminations forming a rotor body, one or more permanent magnets provided in the rotor body, and a sleeve extending around the one or more permanent magnets. The sleeve provides a thermal interface between the one or more permanent magnets and the rotor body. | 03-13-2014 |
20140077630 | HEATSINK DESIGN WITH THERMAL INSULATOR TO REDUCE ENCODER TEMPERATURE FOR MP MOTOR - An electric motor assembly including a housing, an electric motor supported in a motor compartment of the housing, an encoder operatively coupled to the electric motor and supported in an encoder compartment of the housing, and a heat sink surrounding at least a portion of the encoder, the heat sink in thermal contact with an end cap of the housing at least partially defining the encoder compartment, whereby the heat sink is adapted to absorb heat from the encoder and conduct heat to the end cap. | 03-20-2014 |
20140097712 | ELECTRIC MOTOR - An electric motor includes: a shaft having an internal cooling medium passageway; a cooling medium supply portion provided inside a housing at a side of one end of the shaft and supplying a cooling medium to the internal cooling medium passageway; a rotation angle detection sensor attached at the side of the one end of the shaft and detecting a rotation angle of the shaft; a push member including a penetration hole through which the cooling medium supplied from the cooling medium supply portion passes and interposed between the cooling medium supply portion and the one end of the shaft to guide the cooling medium to the internal cooling medium passageway and pressing the rotation angle detection sensor from the side of the one end of the shaft; and a connector holding a terminal connected to a signal cable from the rotation angle detection sensor and attached to the housing. | 04-10-2014 |
20140117793 | TRANSVERSE FLUX MOTOR - A transverse flux motor of an aspect of embodiments includes a rotor having an outer peripheral surface, an annular armature coil wound around a rotational axis of the rotor, a stator core including a pair of magnetic pole portions along an axial direction of the rotational axis, each magnetic pole portion facing the outer peripheral surface of the rotor across a gap and a supporting member containing the armature coil, and having a plurality of protruding portions protruding in the axial direction and provided around the rotational axis, wherein the adjacent two protruding portions around the rotational axis support at least part of the magnetic pole portions between the adjacent two protruding portions. | 05-01-2014 |
20140125161 | INTEGRATED DRIVE-MOTOR ASSEMBLY WITH IP SEAL AND ENHANCED HEAT TRANSFER - An electronics drive module is connected to the flange of a drive motor assembly. The module includes: a metal frame including a peripheral wall; and a metal floor. A power supply PCBA is located adjacent the upper surface of the metal floor, and a switching chip assembly is located adjacent the lower surface of the floor. The base plate of the switching chip assembly conducts heat into the floor and conducts heat into the mounting flange. An environmental seal is located between the lower edge of the frame and the sealing surface of the mounting flange and extending coextensively with the lower edge of the peripheral wall such that a sealing zone is defined within the peripheral wall of the frame and the first and second thermal interfaces are located within the sealing zone. | 05-08-2014 |
20140132094 | THERMAL MANAGEMENT OF AN IPM MOTOR WITH NON-MAGNETIC BARS - A rotor of an electric machine includes a lamination stack having a plurality of longitudinally extending magnet channels each having a magnet space and longitudinally extending gaps on each lateral end of the magnet space. A plurality of permanent magnets are respectively disposed in ones of the magnet channels, substantially non-magnetic bars are disposed in each longitudinally extending gap, and a thermally conductive filler material secures the magnets and the bars within the channels. A method of thermal management of an internal permanent magnet (IPM) rotor includes installing, into at least one longitudinally extending magnet channel of a lamination stack, a pair of substantially non-magnetic bars adjacent opposite lateral ends of a longitudinally extending permanent magnet, and transferring heat from the magnet through the bars into the lamination stack. | 05-15-2014 |
20140145526 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes: a case; a rotor; a stator; a control portion including a field circuit portion used to supply a current to a control circuit and the field winding; a power circuit portion controlling a stator current; a heat sink installed so as to cool the control portion and the power circuit portion; a first waterproof portion providing waterproofing to signal terminals of the power circuit portion and the field circuit portion; a second waterproof portion provided with through-holes from which a part of the control portion and the power circuit portion is exposed and providing waterproofing between the control portion as well as the power circuit portion and the heat sink; and insulation portions installed in the through-holes of the second waterproof portion and isolating the control portion and the power circuit portion from the heat sink. | 05-29-2014 |
20140167535 | MOTOR UNIT HAVING COOLING CHANNEL - A motor unit for a vehicle is provided with a cooling channel cooling channel formed within a motor housing of the motor unit, and forming a flow channel that allows coolant to flow through the flow channel. The cooling channel includes: a supply channel portion having an inlet; an exhaust channel portion having an outlet; and a flow channel changing portion connecting the supply channel portion and the exhaust channel portion to allow a coolant supplied through the inlet of the supply channel portion to be discharged through the outlet of the exhaust channel portion, where at least one of inner protrusion portions and outer protrusion portions are formed on an inner circumferential surface and an outer circumferential surface, respectively, of the supply channel portion or the exhaust channel portion, protruding toward the motor shaft, and extending in a circumferential direction. | 06-19-2014 |
20140183986 | Assemblies and Methods for Cooling Electric Machines - Cooling assemblies and methods, including, for example, at least one bar (e.g., electrically insulated and/or thermally conductive bar(s)), members (e.g., i-beams, rectangular members, and the like), stator laminations, rotor laminations, and/or combinations thereof, such as those configured to cool electric machines (e.g., electric motors and generators). | 07-03-2014 |
20140183987 | SPINDLE MOTOR AND MOTOR UNIT - A motor unit includes a rotating portion and a stationary portion. The rotating portion includes a shaft, a rotor hub, and a rotor magnet. The rotor hub includes a top plate portion and a cylindrical portion. The stationary portion includes a sleeve and an armature. The armature is arranged radially opposite the rotor magnet. A lubricating fluid is arranged between an outer circumferential surface of the shaft and an inner circumferential surface of the sleeve with at least one of the outer circumferential surface of the shaft and the inner circumferential surface of the sleeve including an upper radial dynamic pressure groove array and a lower radial dynamic pressure groove array. An axial position of a center of gravity of the rotating portion is arranged above an axial position of the lower radial dynamic pressure groove array. | 07-03-2014 |
20140191596 | HIGH EFFICIENCY PERMANENT MAGNET MACHINE - The present invention is a high efficiency permanent magnet machine capable of maintaining high power density. The machine is operable over a wide range of power output. The improved efficiency is due in part to copper wires with a current density lower than traditional designs and larger permanent magnets coupled with a large air gap. In a certain embodiment wide stator teeth are used to provide additional improved efficiency through significantly reducing magnetic saturation resulting in lower current. The machine also has a much smaller torque angle than that in traditional design at rated load and thus has a higher overload handling capability and improved efficiency. In addition, when the machine is used as a motor, an adaptive phase lag compensation scheme helps the sensorless field oriented control (FOC) scheme to perform more accurately. | 07-10-2014 |
20140197701 | ELECTRIC MOTOR STATOR HOUSING INTERFERENCE GAP REDUCING METHOD AND APPARATUS - A cooling system of an electric machine includes a stator core, a housing, and a thermal interfacial material interposed between complementary mating surfaces of the stator core and the housing for substantially eliminating air gaps therebetween. A method of cooling an electric machine having a housing and a stator includes placing a thermal interfacial material onto a heat transfer interface between the stator and the housing, whereby the thermal interfacial material reduces contact resistance at the heat transfer interface. A method of cooling a stator of an electric machine includes heating a housing having a radially inner surface, coating a radially outer surface of the stator and/or the radially inner surface of the housing with a thermal interfacial material, and inserting the stator into the heated housing, whereby the thermal interfacial material is interposed between the inner surface of the housing and the outer surface of the stator. | 07-17-2014 |
20140197702 | ELECTRIC MOTOR ROTOR THERMAL INTERFACE WITH AXIAL HEAT SINKS - A cooling system of an electric machine first and second heat sinks respectively mounted to axial ends of a rotor core, and a thermal interfacial material interposed between respective complementary surfaces of the heat sinks and the rotor core for substantially eliminating air gaps therebetween. A method of cooling includes placing thermal interfacial material onto a heat transfer interface between the rotor core and the heat sink, whereby the thermal interfacial material reduces contact resistance at the heat transfer interface. A method of cooling includes coating an axially outer surface of the rotor core and/or an axially inner surface of an annular heat sink with thermal interfacial material, and attaching the heat sink to the rotor, whereby thermal interfacial material is interposed between the inner surface of the heat sink and the outer surface of the rotor core. | 07-17-2014 |
20140203672 | ROTATING ELECTRICAL MACHINE FOR VEHICLE - A rotating electrical machine for a vehicle includes a protective cover including a protruding portion projected to an opening side from a circumferential edge portion of a through hole formed in a bottom portion, a stud bolt that is inserted into the through hole to fix a rectifier to a portion of a casing at a position on one side in an axial direction, a mold resin including a projecting portion projected toward the protective cover, for electrically insulating the rectifier and the stud bolt from each other, and a fitting fixed to an extending portion of the stud bolt that extends from the through hole. A harness clamp is held by the fitting, and the projecting portion and the protruding portion are arranged at a position so that the projecting portion and the protruding portion are overlapped with each other in the axial direction of the stud bolt. | 07-24-2014 |
20140217839 | Stator Assembly with Aluminum Windings, Electric Motor and Discharge Pump for Household Appliances Comprising Said Stator Assembly - A stator assembly ( | 08-07-2014 |
20140217840 | STATOR FOR AN ELECTRIC MOTOR | 08-07-2014 |
20140232217 | MECHANICALLY AND ELECTRICALLY INTEGRATED MODULE - An inverter apparatus is incorporated integrally into a non-load-side of a motor such that an inverter cooler is interposed, and a non-load-side end frame of the motor includes: a flat base portion; a cylindrical non-load-side bearing portion that is disposed so as to protrude axially from near a center of a front surface of the base portion that faces a rotor, and that houses and holds a non-load-side bearing into which a non-load-side end portion of a rotating shaft of the rotor is mounted; and an annular first flange portion that is disposed so as to protrude axially from an outer circumferential edge portion of the front surface of the base portion so as to contact a non-load-side end surface of a cylindrical portion and a cylindrical member. | 08-21-2014 |
20140239753 | MOTOR HOUSING ASSEMBLY AND METHOD - A motor housing assembly is formed by positioning a stator relative to a motor housing to configure a fillable gap between the stator and the motor housing, and filling the fillable gap is at least partially with a polymeric material to form a thermally conductive layer. The polymeric material may include a metallic filler material. The thermally conductive layer is in contact with an exterior surface of the stator and an interior surface of the motor housing adjacent the exterior surface of the stator, and is configured to cover at least half of the exterior surface. A method to form the thermally conductive layer includes injecting a high flow polymeric material through a port defined by the housing and in fluid communication with the fillable gap. | 08-28-2014 |
20140246929 | HIGH THERMAL CONDUCTIVITY INSULATION FOR ELECTRICAL MACHINES - A stator bar includes a plurality of conductors and an insulation layer positioned about the plurality of conductors. The insulation layer includes multiple layers, and the multiple layers have one or more electrically insulating layer and one or more thermally conductive layer. | 09-04-2014 |
20140246930 | Cooling Assembly for Electric Machines - A cooling arrangement for the stator of an electric machine provided with coils including heads is described herein. The cooling arrangement includes a generally cylindrical cooling body provided with opposite longitudinal ends. Heat transfer material embeds the heads of the coils and contact the cooling body. A coil head embedding assembly and method are also described herein. | 09-04-2014 |
20140265654 | HEAT SINK FOR ARMATURES - An electric motor comprising a motor body formed by a set of laminations defining a longitudinal axis, the laminations defining a plurality of slots and a plurality of poles extending generally parallel to the longitudinal axis. Each of the slots includes a winding positioned therein and a heat sink member positioned within a portion of the slots. The heat sink member is a single continuous member that passes through the portion of the slots. Alternatively, the electric motor can include a plurality of heat sink members and a common heat sink member, with a portion of the slots including at least one heat sink member. Each of the heat sink members is coupled to the common heat sink member. | 09-18-2014 |
20140265655 | VEHICLE DRIVE DEVICE - A vehicle drive device that has a stator and a rotor disposed on the inside of the vehicle wheel and drives the wheel, wherein the whole stator can be intensively cooled without causing an increase in production costs. The vehicle drive device comprises: the stator that has a stator core ( | 09-18-2014 |
20140292116 | COOLING ASSEMBLY FOR ELECTRIC MACHINES - A cooling assembly for the stator of an electric machine provided with coils including heads is described herein. The cooling assembly includes a generally cylindrical cooling body provided with opposite longitudinal ends and at least one head-cooling element mounted to one of the longitudinal end of the body; the head-cooling element being so configured as to enclose heads of the coils and to receive heat conducting material therein. | 10-02-2014 |
20140312722 | MAST-MOUNTED AIRCRAFT GENERATOR - A generator with relatively high (Length/Diameter) aspect ratio, which may be mounted within the rotating mast of a helicopter, and which may generate power that is conditioned by a rotating power conditioning unit and delivered to the rotating rotor blades without the use of slip rings, is disclosed. The generator may be arranged to take advantage of the available space within the mast. Temperature of the mast and generator may be controlled by varying the wall thickness of the mast wall and using cooling fins on the mast and a cooling dome. | 10-23-2014 |
20140319939 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes a stator around which coil conductor wires for a plurality of phases are wound, a housing that contains the stator, and a terminal block that is mounted on the housing and connects end portions of the coil conductor wires for the respective phases led from the stator to corresponding external power supply lines. A coolant is supplied to the stator in the housing. The terminal block includes: a plurality of relay conductors, each relay conductor having one end connected to an external power supply line and the other end connected to an end portion of the coil conductor wires for the respective phases, and a terminal block body that is made of an insulating material and holds the plurality of relay conductors. | 10-30-2014 |
20140333160 | THERMAL CONDUCTOR FOR USE IN AN ELECTRIC MACHINE AND METHOD OF FORMING THE SAME - An electric machine includes a housing, a stator core positioned within the housing, a wire wound about the stator core to form a plurality of end-turns that extend from an end of the stator core, and a thermal conductor positioned between the plurality of end-turns and the housing. The thermal conductor includes a substrate and a thermally conductive coating formed on a surface of the substrate. The thermally conductive coating includes a thermally conductive, dielectric material configured to transfer heat from the plurality of end-turns to the substrate. | 11-13-2014 |
20140339931 | ROTARY ELECTRIC MACHINE - In order to prevent poor operability caused by entanglement of the fins in the heat sink during assembly without a drop in the cooling efficiency of the cooling flow along a rotation shaft, a plurality of fins | 11-20-2014 |
20140354088 | ELECTRIC MOTOR - A connection housing ( | 12-04-2014 |
20140361647 | MOTOR HEAT DISSIPATION STRUCTURE WITH INBUILT ELECTRONIC BOARD - A motor heat dissipation structure with an inbuilt electronic board includes a motor casing made of an aluminum material. The electronic board is disposed in the motor casing. Electronic components provided on one side of the electronic board are attached to the inner wall of one end of the motor casing. A heat dissipation metallic member is provided on electronic components on the other side of the electronic board. The heat dissipation metallic member extends to the circumferential side of the motor casing and is attached to the motor casing. Thus, the heat generated from the electronic components is conducted to the outside through the motor casing to enhance heat dissipation efficiency of the electronic board so as to protect the electronic board, preventing the electronic board from being overheated. | 12-11-2014 |
20140361648 | ELECTRIC ROTATING MACHINE - Two or more switching devices ( | 12-11-2014 |
20150028702 | ROTOR WINDING HAVING A BRAZE JOINT SPACED APART FROM STRESS CONCENTRATION - A winding for a rotor for use in an electrical generator utilized in the power generation industry. The winding includes a plurality of axial sections and a plurality of transversely oriented end arc sections. An integrated leg section extends from each end arc section to form an associated corner section at an intersection of each leg section and associated end arc section. Each leg section is affixed to an associated axial section at a joint that is spaced apart from an associated corner section such that the joint is not subjected to stress concentration which occurs at the associated corner section. | 01-29-2015 |
20150061421 | ELECTRIC COMPRESSOR - An electric compressor includes: a compressing unit; an electric motor that rotates the compressing unit; and a driving circuit. The driving circuit includes a filter circuit, an inverter circuit that receives electric power from the power supply line via the filter circuit, and a circuit board on which the inverter circuit is disposed, and a base member (aluminum base) and that supports the circuit board. The filter circuit has an electromagnetic coil and a damping resistor. The damping resistor is fixed to the aluminum base in abutment with the aluminum base. Preferably, the filter circuit is mounted on the circuit board, and the damping resistor has a lead line soldered to the circuit board and is fixed to the aluminum base by a screw. With this, there can be provided the electric compressor capable of effectively cooling the damping resistor of the filter circuit. | 03-05-2015 |
20150061422 | MOTOR DRIVING APPARATUS AND VEHICLE - A motor driving apparatus includes: a motor including a first winding and a second winding; a winding switcher configured to switch between connection states of the first winding and the second winding of the motor; and a power converter connected to the motor. The motor, the winding switcher, and the power converter are disposed in a direction approximately orthogonal to an axial direction of the motor in order of the motor, the winding switcher, and the power converter. | 03-05-2015 |
20150061423 | MOTOR DRIVING APPARATUS AND VEHICLE - A motor driving apparatus includes: a motor including a first winding and a second winding; a winding switcher configured to switch between connection states of the first winding and the second winding of the motor; and a power converter connected to the motor. The motor, the power converter, and the winding switcher are disposed in a direction approximately orthogonal to an axial direction of the motor in order of the motor, the power converter, and the winding switcher. | 03-05-2015 |
20150295463 | ENCAPSULATED MAGNET ASSEMBLY, METHOD OF PURGING A GAP ROTARY MACHINE AND OIL/GAS PLANT DESCRIPTION - A encapsulated magnet assembly includes at least one pole piece and an encapsulation housing. At least one portion of the encapsulation housing is adjacent to the at least one pole piece. At least one recess is provided in the encapsulation housing next to the housing portion for establishing fluid flow. The at least one recess is so shaped as to facilitate the fluid flow, | 10-15-2015 |
20150318757 | HEAT EXCHANGE SYSTEM FOR CASINGS OF ROTARY ELECTRIC MACHINES - This invention claims a heat exchange system applied to the rotating electrical machine casing using the same, wherein said machines are equipped with a finned casing comprising a number of fins ( | 11-05-2015 |
20150326074 | ELECTRIC MACHINE AND SYSTEMS COMPRISING THE SAME - An electric machine is presented. The electric machine includes a hollow rotor; and a stator disposed within the hollow rotor, the stator defining a flow channel. The hollow rotor includes a first end portion defining a fluid inlet, a second end portion defining a fluid outlet; the fluid inlet, the fluid outlet, and the flow channel of the stator being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel; and wherein the hollow rotor is characterized by a largest cross-sectional area of hollow rotor, and wherein the flow channel is characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least about 25% of the largest cross-sectional area of the hollow rotor. An electric fluid pump and a power generation system are also presented. | 11-12-2015 |
20150381080 | ELECTROMAGNETIC POWER GENERATOR - An electromagnetic generator comprising an antenna that receives radiofrequency energy. The antenna is connected to a rectifier circuit, which is used to charge a first battery using the radiofrequency energy received by the antenna. The first battery supplies power to a control unit, which powers at least one electromagnet to generate a magnetic field. A flywheel having at least one magnet is configured to rotate when the magnetic field is generated. An alternator, connected to the flywheel, charges a second battery based on the rotation of the flywheel. The second battery is then used to supply power to an external device. | 12-31-2015 |
20160036298 | ELECTRONIC DEVICE AND DRIVE DEVICE INCLUDING THE SAME - An electronic device includes a heat sink, where heat dissipating gel is interposed between the heat sink and a side of an electronic component, which is mounted on a substrate, opposite from the substrate. The electronic component includes an electrical conductor electrically connected to a chip, and an insulator portion that molds the chip with the electrical conductor. The heat sink includes a non-abutting surface that faces the electrical conductor of the electronic component, the heat dissipating gel interposed between the non-abutting surface and the electrical conductor, and an abutting surface that is positioned closer toward the substrate than the non-abutting surface is and abuttable with the insulator portion. Accordingly, when the abutting surface of the heat sink abuts the insulator portion of the electronic component, the non-abutting surface of the heat sink is prevented from abutting the electrical conductor of the electronic component. | 02-04-2016 |
20160065037 | ELECTRONIC FLUID PUMP FOR A MOTOR VEHICLE - An electronic vehicle fluid pump includes an electronically commutated drive motor. The electronically commutated drive motor includes an electronic motor control unit which includes a first main board, a second main board, at least one flexible conduction band, at least one intermediate board arranged between the first main board and the second main board and electrically connected with the first main board and the second main board via the at least one flexible conduction band, and at least one electronic component arranged on the at least one intermediate board. The first main board, the second main board, and the at least one intermediate board are respectively arranged at a different spatial level. | 03-03-2016 |
20160118858 | ROTARY ELECTRIC MACHINE - In the rotary electric machine according to the present invention, a first O-ring | 04-28-2016 |
20160149449 | Pump Having a Rotation Prevention Means and Domestic Appliance Having a Pump of this Kind - A pump has a DC pump drive motor with an electrically driven stator winding and a rotor which is mounted such that it can be driven in rotation in the field of the stator winding. The motor also has a motor shaft, a permanent-magnet ring and a holder which is mounted on the motor shaft and on which the permanent-magnet ring is held. The pump has a rotation-prevention device configured to secure the permanent-magnet ring against rotation about the axis of the rotor on the holder. A domestic appliance, in particular a dishwasher or a washing machine, is provided with a pump of this kind. | 05-26-2016 |
20160192535 | ELECTRONIC DEVICE AND ACTUATOR USING THE SAME - An electronic device has a substrate, a heat sink, and a heat conductive material. The substrate has a first surface on which an electronic part is arranged. The heat sink has (i) a second surface facing the first surface and distanced from the electronic part and (ii) an annular groove extending annularly and defining an area that is circled by the annular groove on the second surface and faces the electronic part. The heat conductive material is arranged between the first surface and the second surface to be in contact with the electronic part and the annular groove. The heat conductive material guides heat generated by the electronic part to the heat sink. | 06-30-2016 |
20170237306 | ELECTRIC MACHINE FOR A MOTOR VEHICLE, COIL CARRIER FOR AN ELECTRIC MACHINE, AND MOTOR VEHICLE | 08-17-2017 |
20170237316 | Rotor Shaft Arrangement and Method for Manufacturing the Same | 08-17-2017 |
20180026493 | CASE FOR ELECTRIC MOTOR | 01-25-2018 |
20190149013 | ELECTRIC ROTATING MACHINE | 05-16-2019 |