Entries |
Document | Title | Date |
20080238224 | Electrical Appliance - The invention relates to an electric appliance ( | 10-02-2008 |
20080252157 | Electric Machine - The invention relates to an electric machine ( | 10-16-2008 |
20080265700 | High current capacity rectifier package - Disclosed is a dynamoelectric machine having improved heat dissipation capabilities. The dynamoelectric machine includes a three-phase stator winding with a rectifier assembly electrically connected to the stator winding. The rectifier assembly includes an end frame having at least one negative diode contained therein and a positive heat sink which has at least one positive diode disposed therein. Connecting the negative diodes and positive diodes is a terminal assembly. The terminal assembly includes one or more electrically conductive and heat dissipative straps. The straps electrically connect one or more negative diodes and one or more positive diodes. Also disclosed is a method for dissipating heat from a rectifier of a dynamoelectric machine. | 10-30-2008 |
20080315694 | Brushless type of vehicular AC generator - A brushless alternating current generator for vehicles comprises a stator, rotor, field winding, rectifier, housing, cover, and extension member. The rectifier has plural rectifying elements to rectify a voltage from the stator winding and output the rectified voltage and a radiating fin to which the rectifying elements are attached. The housing has a side wall and houses both the stator and the rotor and has an end face to which electric parts including the rectifier are attached. The side wall Is along the axial direction. The end face is along the radial direction. Both the side wall and the radiating fin are mutually adjacent to provide a gap in the radial direction. The cover encloses the end face of the housing and has plural air inlets that takes in cooling air. The extension member is secured to the cover and extends into the gap in the axial direction. | 12-25-2008 |
20090051233 | ROTOR AND STATOR ASSEMBLIES FOR PERMANENT MAGNET ELECTRIC GENERATOR - A permanent magnet electric generator includes a rotor assembly and a stator assembly. The rotor assembly has axially disposed annular outer and inner rings concentric with an axis of rotation. The inner ring has a radius less than the radius of the outer ring. The inner ring is disposed inside the outer ring. A rotor frame is attached to the inner ring and the outer ring. The rotor frame defines a radial gap between the inner and the outer rings. A rotor hub is concentric with the axis of rotation and is disposed inside the inner ring. The rotor hub is coupled to the inner ring by a hub frame that is mounted on the rotor hub. The rotor hub is adapted to be rotationally coupled to a shaft for rotating the rotor assembly. A plurality of magnets is disposed on the outer ring, each magnet having a north pole and a south pole. The permanent magnets are aligned with the axis of rotation, and adjacent magnets have alternating polarity. The stator assembly includes a plurality of stator blocks aligned to form an annular ring-shaped stator member retained by a stator frame. The stator member is configured to be at least partially disposed inside the rotor assembly and is circumferentially encircled by the rotor assembly. The stator member is concentric with the axis of rotation. Each stator block is formed with a plurality of strips. The stator member is wound with a three-phase winding extending through gaps between adjacent stator blocks. The stator assembly includes a heat sink attached to the stator member to dissipate heat during operation of the electric generator. | 02-26-2009 |
20090058206 | MOTOR WINDING ASSEMBLY - The invention relates to a motor winding assembly. There is a need for a motor winding assembly which rapidly conducts heat from motor coils to a cooling housing. An electric motor stator assembly has a plurality of winding assemblies enclosed by a heat conducting housing. Each winding assembly has a heat conducting lamination member, a pair of end cap insulator members next to the lamination member, and an insulating liner and an electrical winding wound around the lamination member and the end cap insulator members. Each end cap insulator member has a head, a foot, and a bar which extends between the head and the foot. The end cap insulator members are formed of a heat conducting material. Each head has a radially outer end which engages the heat conducting housing. | 03-05-2009 |
20090127946 | Cooling jacket and stator assembly for rotary electric device - An electric motor/generator cooling mechanism is presented. The cooling mechanism includes a hollow cooling jacket having an inner and outer coaxial surface, where the inner surface defines a generally cylindric cavity for receiving a stator in heat transference contact with the inner surface, and the outer surface has a cast spiral groove section with jogged cooling passages. The disclosure includes an outer case having one or more inlet ports, an outlet port, and a vent for purging air, cooling fluid flowingly encased between the cooling jacket and the outer case, flowing through the jogged cooling passages, and a flanged end surface on an end of the outer case for boltingly connecting the cooling jacket to the outer case. | 05-21-2009 |
20090146513 | ROTARY ELECTRIC MACHINE STATOR ASSEMBLY DESIGN AND MANUFACTURING METHOD - The invention relates to a design for and a method of manufacturing a rotary electric machine stator assembly. There is a need for improved cooling in rotary electric machines, such as motors and generators. A stator assembly is provided for a rotary electric machine having a rotor which rotates within a stator which is enclosed within a cooling jacket. The stator has a plurality of grooves separated by a plurality of stator teeth. A stator coil is wrapped around each corresponding tooth. The stator assembly also includes a plurality of heat conducting plates which conduct heat from a coil to the stator. In one embodiment, adjacent pairs of coils are separated by one of a plurality of radially and axially extending slots, and the plates are received within the slots. In another embodiment, the plates are positioned between the stator coil and each side of the corresponding tooth around which the coil is wrapped. | 06-11-2009 |
20090160272 | HEAT PIPE DEVICE FOR COOLING A VOLTAGE REGULATOR OF A ROTATING ELECTRIC MACHINE, SUCH AS AN ALTERNATOR OR AN ALTERNATOR-STARTER - The invention relates to a heat pipe device ( | 06-25-2009 |
20090184594 | FLUX SCREEN FOR GENERATORS - A flux screen is provided for shielding a generator stator core from the magnetic field generated by end windings of the stator, wherein the flux screen comprises a frontside to be at least indirectly facing the end windings of the generator and a backside to be at least indirectly facing the stator core of the generator, and wherein the backside is provided with channels and/or grooves and/or pits. | 07-23-2009 |
20100007227 | COOLING JACKET FOR DRIVE MOTOR - A cooling jacket for a motor includes an extruded jacket body having an outer peripheral surface, an inner peripheral surface, and a plurality of discrete cooling passages located between the inner and outer peripheral surfaces that provide multi-directional fluid flow. A fluid inlet is provided to direct cooling fluid into the jacket body and a fluid outlet to direct heated fluid away from the jacket body. | 01-14-2010 |
20100013331 | COOLING STRUCTURE FOR INVERTER AND CAPACITOR ACCOMMODATED INTEGRALLY WITH MOTOR IN HOUSING OF MOTOR, MOTOR UNIT WITH COOLING STRUCTURE, AND HOUSING - Inside a housing, there are provided a motor generator (MG), an IPM, and a smoothing capacitor. Between the MG and the IPM, there is provided a cooler through which a coolant liquid flows, provided in an inclined manner to form contact with the top face of the IPM. Between the MG and the smoothing capacitor, there are provided a first communication channel through which an LLC flows from a region outside the housing into the cooler, brought into contact with a lateral face of the smoothing capacitor, and a second communication channel through which the LLC flows from the interior of the cooler to the region outside the housing. | 01-21-2010 |
20100026113 | STATOR FOR USE IN ELECTRIC ROTARY MACHINE AND ELECTRIC MACHINE - A stator for an electric rotary machine which includes a stator coil which is made up of conducting wires each of which includes in-slot portions disposed one in each of slots formed in a stator core and turned portions each of which connects adjacent two of the in-slot portions outside the slots. Each of the turned portions includes steps adjacent connected through a curved bend. The curved bend of one of the conducting wires is laid to overlap one of turned portions of the other conducting wire in an axial direction of the stator core through a gap. The curved bend has walls extending toward one of the turned portions of the other conducting wire to define a chamber. The walls increase a total area of the stator coil from which thermal energy will dissipate, thus enhancing the ability of the stator coil to be cooled. | 02-04-2010 |
20100033042 | TOTALLY ENCLOSED HEAT PIPE COOLED MOTOR - A totally enclosed motor comprising a housing totally encloses an electrical package that includes plurality of slot vents extending radially outward from a shaft on which the electrical package is mounted. The electrical package being operable to generate a closed circuit electrical package cooling air flow that circulates through the slot vents and is confined within the housing. The motor additionally including an exterior cooling assembly that is operable to generate a directed exterior air flow along an exterior portion of the housing. The motor further including a plurality of heat pipes having evaporator ends disposed within the closed circuit electrical package cooling air flow and condenser ends disposed within the exterior air flow, whereby heat is removed from the electrical package chamber such that the ‘Totally Enclosed’ more provides a power output substantially equivalent to that of an ‘Open’ motor of approximately the same size. | 02-11-2010 |
20100096938 | BLOWER MOTOR - A blower motor can efficiently remove heat generated by all substrate-mounted components. A rotor and a stator are housed inside a motor case. A motor substrate on which a motor driving circuit is formed is disposed in a space formed in the axial direction between (i) the rotor and the stator and (ii) an opening bottom portion of a bracket. A heat-generating component mounted on the motor substrate contacts the opening bottom portion of the bracket via a heat-dissipating member. | 04-22-2010 |
20100102656 | Arrangement for cooling of an electrical machine - An air-gap is between a rotor and a stator. The stator comprises a number of stacked laminate-plates. The laminate-plates are positioned and fixed by a structural support and by end-plates in relation to a central-part of the stator to achieve the air-gap. A cavity is formed by the end-plates, the central-part of the stator, the air-gap and an internal surface of the rotor. An air-cooling arrangement is arranged and used to circulate a gaseous medium for cooling purposes inside the cavity. | 04-29-2010 |
20100102657 | ARRANGEMENT FOR COOLING OF AN ELECTRICAL MACHINE - In one aspect, an arrangement for cooling of an electrical machine is provided. A rotor and a stator include an air-gap arranged between the rotor and the stator. The rotor and the stator include a circulation arrangement to allow the circulation of air for cooling-purposes of the rotor and of the stator. The rotor and the stator are encapsulated by a shell which is formed to allow the flow of hot air from the rotor and the stator to a heat-exchanger. The shell is formed to allow the flow of cool air from the heat-exchanger back to the rotor and the stator for cooling-purposes. The shell includes a number of corners, while each corner is used to gather the hot air before it is guided to the heat-exchanger. | 04-29-2010 |
20100171380 | ELECTRIC MACHINE - An electric machine comprises an outer casing ( | 07-08-2010 |
20100176671 | AUTOMOTIVE ALTERNATOR - A positive-side heatsink and a negative-side heatsink that constitute a rectifier are disposed inside a case at a rear end of a rotor so as to be separated axially such that front surfaces of a positive-side base portion and a negative-side base portion face each other. The negative-side heatsink is disposed such that radiating fins that are disposed so as to project from a rear surface of the negative-side base portion are positioned radially outside a cooling fan so as to face a coil end of a stator coil. | 07-15-2010 |
20100207465 | STATOR FOR ROTARY ELECTRIC MACHINE - A stator for a rotary electric machine, the stator including a jacket and a stack of stator laminations placed inside the jacket, subassemblies of laminations of the stack having extensions with flow channels for passing a cooling fluid therethrough, the subassemblies being disposed in such a manner that fluid flowing along the stack is subjected to a succession of passes within the channels and of passes through wide zones extending between the channels, the stack laminations being arranged in such a manner that for at least one extension, and better for the majority, or even all of the extensions of a subassembly, the flow section made available to the flow of cooling fluid within the extension is greater than the flow section defined by the space extending radially between the extensions and the jacket. | 08-19-2010 |
20100237726 | Stator structure and rotating electrical machine using the same - The invention provides a rotating electrical machine provided with stable rotation characteristics for enabling each core to be reliably fixed in arranging a plurality of cores annularly around the rotor even when the dimensional error occurs in manufacturing accuracy of each core, causing each division core itself to enhance the cooling property, and resolving instability of magnetic reluctance between division cores, where the rotating electrical machine has a plurality of stator cores obtained by laminating electromagnetic steel plates, winding coils wound around the stator cores via insulators, a pair of first and second bracket members that hold the plurality of stator cores from the front and back in the rotary shaft direction of the magnet rotor, and a fastening member that couples the first and second bracket members, in the first bracket member is formed a first contact surface for striking one end face of each of the stator cores to regulate so as to arrange the plurality of stator cores annularly, in the second bracket is formed a second contact surface for striking the other end faces of the stator cores to regulate, the first contact surface constitutes a reference plane to align one end faces of the plurality of stator cores on the same plane, the second contact surface is formed of a deformation surface deformable to follow the other end faces of the plurality of stator cores, and at least one of the pair of first and second brackets is formed of a ring-shaped magnetic material for magnetically coupling between the division cores. | 09-23-2010 |
20100237727 | ARRANGEMENT AND METHOD FOR COOLING AN ELECTRICAL MACHINE - An exemplary arrangement is disclosed for cooling an electrical machine having an external rotor rotating around its rotation axis and a stator having sheet packs, located inside the rotor at the end of an air gap. In the arrangement, a first part of a coolant flow is conducted from both ends of the stator through axial cooling channels into the stator sheet pack. A second part of the coolant flow is conducted from both ends of the stator into the air gap and from the air gap through at least one radial cooling channel into the stator sheet pack. Both parts of the coolant flow are conductable into at least one heat exchanger placed radially inside and at a distance from the stator sheet pack. At least one fan is placed radially inside the heat exchanger to send the first and the second part of the coolant flow to the ends of the stator. | 09-23-2010 |
20100244596 | SUPERCONDUCTING ELECTRICAL MACHINE - A superconducting electrical machine comprises a rotor and a stator. The stator comprises a stator having a plurality of circumferentially spaced radially extending teeth and a plurality of superconducting electric coils. Each superconducting electric coil is positioned around a respective one of the teeth. A thermally conducting member surrounds and contacts the stator. A cooler is arranged to cool the thermally conducting member. A vacuum enclosure encloses the thermally conducting member, the stator and the superconducting electric coils and a pump is arranged to evacuate the vacuum enclosure. The superconducting electrical coils comprise magnesium diboride. | 09-30-2010 |
20100264762 | FAN-MOTOR UNIT - A fan-motor unit comprises a fan driven by an electric motor, both mounted on a support, at least one inlet (I) and one outlet (S) for a forced air flow, an electronic circuit board for controlling the motor, and a radiator at least partially immersed in the forced air flow. The radiator has a curved peripheral edge determining a convex face and a concave face of the said radiator, the electronic circuit board being in contact with the said radiator on the concave face side and a substantially cylindrical bearing surface on the convex face side of the said radiator. A radial gasket that forms a skirt comprises a first end secured to the support, a free second end, and a substantially cylindrical interior face between the first and second ends, and the interior face of the radial gasket bears against the bearing surface so as to isolate the electronic circuit board from the air flow. | 10-21-2010 |
20100283337 | DRIVE DEVICE FOR VEHICLE - A drive device for a vehicle includes a motor generator generating drive force, and a power control unit provided integrally with the motor generator for controlling the motor generator. The includes a low-voltage circuit section to which a relatively low voltage is applied, a high-voltage circuit section which is located at a rear side of the vehicle relative to the low-voltage circuit section and to which a relatively high voltage is applied, and a cooling plate located between the low-voltage circuit section and the high-voltage circuit section in a longitudinal direction of the vehicle for cooling the high-voltage circuit section. With such configuration, the drive device for a vehicle allows the power control unit to be protected appropriately against an externally imposed shock. | 11-11-2010 |
20100289351 | ELECTRIC ROTATING MACHINE - The electric rotating machine is provided with an intermediate plate having a power circuit connection portion that is connected with an outgoing lead drawn out from a power circuit unit and an armature winding connection portion that is connected with the power circuit connection portion and an outgoing lead drawn out from an armature winding. The power circuit connection portion and the armature winding connection portion are arranged at desired positions and outgoing leads from the armature winding of the stator are drawn out in such a way as to fall within a given space, so that intermediate connection lines for connecting windings can be shortened. Accordingly, not only the breakage of an intermediate connection line caused by a vibration can be prevented, but also the switching elements can separately be arranged so as to reduce thermal interference between the switching elements; therefore, the switching elements can effectively be cooled. | 11-18-2010 |
20100289352 | ELECTRICAL ROTATING MACHINE - An object of the present invention is to provide an electrical rotating machine that prevents heat generated from a stator winding from being transmitted to an inverter circuit. A rotor having a field winding, and a stator having a stator winding arranged so as to surround the rotor are provided. One end of a rear bracket is connected to the stator, and arranged inside the rear bracket is a heat sink assembly including a heat sink having switching elements for controlling the field winding and the stator winding mounted thereto. The heat sink assembly is fixed to protruding portions protruding from an end surface of the rear bracket. | 11-18-2010 |
20100289353 | INTERNAL THERMAL MANAGEMENT FOR MOTOR DRIVEN MACHINERY - A motor driven assembly includes a motor having a motor inlet and a motor outlet, a shaft, and a rotor spaced radially outwards from the shaft. A cooling flow passage is located between the shaft and the rotor. The cooling flow passage fluidly connects the motor inlet and the motor outlet. A compressor is in fluid communication with the motor outlet. The compressor includes a compressor outlet that is in fluid communication with the motor inlet. | 11-18-2010 |
20100295391 | Cooling System And Method For An Electric Motor - An electric motor which has a separate end cap heat exchanger, through which a liquid coolant is passed, is disclosed. In one example embodiment, the electric motor is a traction motor or motor-generator in a hybrid electric vehicle having an internal combustion engine. Additionally, in one embodiment, the heat exchanger has a low-temperature coolant loop configured to extract energy from the motor coolant. The electric motor may be installed in a variety of vehicles or other applications having greatly differing cooling requirements. By placing the heat exchanger and control componentry in the end cap, the cooling capability of the electric motor can be changed by selecting an end cap with the appropriate heat transfer characteristics and control componentry to provide the desired cooling. Consequently, a single electric motor, with a variety of end cap choices, can be used in a variety of applications. | 11-25-2010 |
20100301690 | ROTARY ELECTRIC MACHINE AND THE METHOD FOR ASSEMBLING IT - An electric machine ( | 12-02-2010 |
20100327677 | DRIVE APPARATUS AND SEMICONDUCTOR MODULE - A special terminal may project from an encapsulation body of a semiconductor module and may be engaged with an engaging portion of a motor case to limit a positional deviation of the semiconductor module relative to the motor case. Additionally or alternatively, a module side engaging portion may be formed in the encapsulation body and may be engaged with a case side engaging portion to position the semiconductor module relative to the motor case. | 12-30-2010 |
20100327678 | DRIVE APPARATUS - A drive apparatus has a motor device having a tubular motor case. A stator is arranged radially inside the motor case. A rotor is arranged radially inside the stator. A shaft is rotatable with the rotor. An electronic circuit is arranged in the central axis direction of the shaft relative to the motor case. A choke coil has a hole in a central part thereof, in which the shaft is inserted. | 12-30-2010 |
20110012449 | DYNAMOELECTRIC MACHINE - The present invention provides a dynamoelectric machine that enables heat that is generated in a permanent magnet to be transmitted to a fan and be radiated from the fan effectively, that suppresses occurrences of damage to the fan that result from centrifugal forces that act on the permanent magnet, and that also enables the fan to be prepared easily and inexpensively. | 01-20-2011 |
20110018374 | ELECTRONIC CIRCUIT-INTEGRATED MOTOR APPARATUS - An electronic circuit including semiconductor modules and capacitors is positioned in the axial direction of a motor. Each semiconductor module is longitudinally positioned in contact with a heat sink. More specifically, a line perpendicular to the surface of a semiconductor chip included in the semiconductor module is perpendicular to the axis line of the motor. Consequently, each capacitor is positioned so that at least a part of the positional range of the capacitor in the axial direction of the motor coincides with the positional ranges of the semiconductor module and the heat sink in the axial direction. | 01-27-2011 |
20110031826 | PERMANENT MAGNET MACHINE AND ROTOR - A permanent magnet machine is disclosed. The permanent magnet machine includes a stator, and a rotor comprising a rotor core and disposed outside and concentric with the stator, wherein the rotor core comprises a contiguous volume disposed around a plurality of permanent magnets, wherein the contiguous volume simultaneously supports a magnetic flux generated by the permanent magnets and provides mechanical support and containment for the permanent magnets, during operation of the permanent magnet machine. A rotor for a permanent magnet electric machine is also disclosed. | 02-10-2011 |
20110057523 | BRUSHLESS MOTOR - A brushless motor comprises a stator and a rotor rotatably mounted to the stator. The rotor comprises a shaft, a rotor core fixed onto the shaft and magnets fixed to the rotor core. Two covers are fitted to respective ends of the rotor core, with one of the covers covering one end of the rotor core and at least a part of the radially outer peripheral surface of the rotor core, while the other cover at least covering the other end of the rotor core. Preferably, the entire peripheral surface of the rotor core is substantially covered by the two covers and the gap between the two covers is sealed by adhesive. | 03-10-2011 |
20110089777 | THERMALLY MANAGEABLE SYSTEM AND ELECTRIC DEVICE - An assembly is provided that includes a thermally manageable system. The system includes a first segment, a second segment, and a third segment. The first segment has one or both of an outward facing surface that defines a plurality of channels, and an inward facing surface that defines a plurality of apertures, extending axially along the first segment. The plurality of channels (or apertures) defines at least a portion of a flow path. The third segment has a fluid ingress and an egress, each connected to respective ones of the plurality of channels or the plurality of apertures. The first, second, and third segments are capable of being secured to form a rotatable shaft that is subjectable to a thermal load, and the flow path is configured to direct a flow of fluid to manage or control the thermal load to which the rotatable shaft is subject. | 04-21-2011 |
20110101804 | CONTROLLER-INTEGRATED ELECTRIC ROTATING MACHINE - There is obtained a controller-integrated electric rotating machine that is superior in terms of a cooling effect. | 05-05-2011 |
20110109176 | INDUCTION MOTOR EQUIPPED WITH HEAT DISSIPATING DISC FOR DISSIPATING ROTOR HEAT - An induction motor has a rotation detector, a heat dissipating disc for dissipating heat generated from a rotor, and a cooling fan for forcibly cooling the heat dissipating disc with outside air. The heat dissipating disc is disposed between the rotation detector and the cooling fan. | 05-12-2011 |
20110140551 | HEAT RECOVERY SYSTEM FOR VEHICLE - A heat recovery system includes an electric rotary device, a heat exchanger, a pipe and a reservoir. The electric rotary device has a stator core and a housing. The stator core is wounded with a coil. The heat exchanger provides heat exchanging between first and second heat medium. The first heat medium is in contact with the coil and absorbs heat from the coil. The pipe connects the electric rotary device to the heat exchanger and transfers the first heat medium. The reservoir is formed in the housing and stores the first heat medium. The electric rotary device has an insulative body. The insulative body prevents heat of the first heat medium from being dissipated outside of the housing. | 06-16-2011 |
20110221289 | RADIATOR FOR POWER GENERATOR COIL - A radiator for power generator coil, which is composed of a housing, a front cover, a rotating axle, a plurality of fan blades and a coil disk; wherein the coil disk is provided interiorly with a coil set, and provided at the periphery with flanges; the peripheral wall inside of the front cover is provided with grooves, thereby said flanges of the coil disk can be fastened into the front cover and disposed between the housing and the front cover; the rotating axle goes through a front rotating disk provided with a plurality of magnets, the coil disk interiorly provided with coil set, and then a rear rotating disk provided with a plurality of magnets; the rotating axle has a step, the periphery of which is provided with at least one groove, whereas the periphery of the coil disk has many openings; thus by way of the grooves and openings, the heat occurred during operation of the power generator can be guided and dispersed into air current. | 09-15-2011 |
20110241460 | AXIAL FLUX MACHINE - An axial flux rotating electrical machine is disclosed, which comprises a stator sandwiched between two rotors. The machine comprises retention means for retaining magnets on the rotor, the retention means comprising a back plate with a plurality of protrusions which define a plurality of pockets for accommodating the magnets. The retention means is arranged such that the magnets can be inserted into the pockets and held therein, and the retention means with inserted magnets can be fixed to a rotor so as to retain the magnets axially and tangentially. A cooling jacket for the stator, and techniques for securing the stator to the machine, are also disclosed. | 10-06-2011 |
20110254393 | ELECTRIC MOTOR DEVICE - A power module for supplying driving current to coils wound on a stator of an electric motor and a heat sink for absorbing heat generated at the power module are provided at an axial outside of a motor casing. An intermediate member is provided between the motor casing and the heat sink. The intermediate member has a bottom plate portion fixed to an axial end plate of the motor casing and a cylindrical side wall axially extending from the bottom plate portion. An outer peripheral surface of the heat sink is in contact with an inner peripheral surface of the cylindrical side wall, so that the power module fixed to the heat sink is arranged in a space, which is within a range smaller than an outer diameter of the motor casing. | 10-20-2011 |
20110278971 | ROTARY MACHINE - A rotary machine including: a stator in the rotary machine; and a stator coil provided in the stator, a part or all of the stator and the stator coil being molded with resin to insulate the stator coil, wherein one or more materials having high thermal conductivity are provided on the inside or the outside of the resin and coupled to a heat radiating section on the outside of the resin by the materials having high thermal conductivity. Consequently, it is possible to realize a rotary machine that is small and light, has high heat radiation properties, and stably operates for a long time. | 11-17-2011 |
20110285223 | Electric drive apparatus - Two power modules, in which switching elements for switching over currents supplied to coils of a motor are resin-molded, are provided to face each other sandwiching a plane including a rotation axis of a shaft. A first smoothing capacitor, second smoothing capacitors and a choke coil are located between the power modules. By consolidating large-sized electronic parts between the power modules, a control unit can be reduced in size and impedance of electric conductor connecting the electronic parts and the power modules can be reduced. | 11-24-2011 |
20110285224 | STATOR COIL ASSEMBLY - There is provided a compact stator coil assembly that has heat radiation increased and a cooling performance improved. A stator coil assembly includes a first coil piece, a second coil piece, and an insulating member provided with a retaining portion that catches the first coil piece and the second coil piece so that those coil pieces form a predetermined coil pattern. A coil loop is formed by the first coil piece and the second coil piece. The stator coil assembly further includes a heat-transfer member having a heat-transfer portion insulated from the first coil piece and the second coil piece and embedded in the insulating member, and a slit formed in the heat-transfer member so as to cut off the pathway of an induced current that is to flow through the heat-transfer member. | 11-24-2011 |
20110285225 | DRIVE APPARATUS - A heat sink is provided on a motor. A power module is provided on the heat sink to switch current supply to motor coils. A control circuit substrate is arranged on the heat sink and connected electrically to the power module. A power circuit substrate is connected electrically to the power module and arranged at an opposite side of the control circuit substrate relative to the heat sink. A control circuit connector is electrically connected to the control circuit substrate. A power circuit connector is electrically connected to the power circuit substrate. The control circuit connector and the power circuit connector are arranged between the control circuit substrate and the power circuit substrate. | 11-24-2011 |
20110291500 | MOTOR - A motor with a body, including: a housing, a stator, and a rotor; and a controller, including a control box, and a control circuit board. The body is disposed at the top of the motor. The controller is disposed at the bottom of the motor. The control circuit board is disposed in the control box. The control box extends from a side of the housing and forms a platform. A control cable and a power line enter the control box via the platform, and are connected to the control circuit board. The control cable and the power line are sealed via a sealing screw joint and a nut. | 12-01-2011 |
20120025642 | ROTATING ELECTRIC MACHINE - A rotating electric machine that can be improved in cooling performance is provided. An end plate includes an annular plate portion arranged to be spaced from a rotor in an axial direction and secured to a rotation shaft, and a tubular portion protruding from an outer edge of the annular plate portion to abut on an axial end surface of the rotor. A partition plate arranged between the rotor and an end plate forms a first space between the rotor and the partition plate and a second space between the annular plate portion and the partition plate. A communication passage allowing the first space and the second space to communicate with each other is formed in the partition plate at a radially outer side relative to a permanent magnet. A through hole extending through the annular plate portion in the axial direction is formed in the annular plate portion at a radially inner side relative to the permanent magnet. | 02-02-2012 |
20120043837 | Stator system with a cooling arrangement - A stator system for a generator is provided. The stator system includes a housing element, a conductor, a cooling box and a cooling arrangement. The conductor forms at least one winding of the stator system. The winding includes two central sections and an end section. The end section connects the two central sections, wherein each of the two central sections are mounted at a surface of the housing element. The end section projects from the housing element. The cooling box is mounted to the housing element in such a way that the cooling box encloses the end section, so that the end section runs inside an interior space of the cooling box. The cooling arrangement is located in and/or at the cooling box, wherein the cooling arrangement is adapted for cooling the end section. | 02-23-2012 |
20120074802 | Driving Motor - Provided is a driving motor that will meet the requests of making the length of a rotating axis of the driving motor to be shorter in the axial direction, and which will also have waterproof, vibration resistance, and soundproof characteristics. In this driving motor ( | 03-29-2012 |
20120112578 | HEAT TRANSFER ASSEMBLY FOR ELECTRIC MOTOR ROTOR - A motor driven assembly comprises a motor shaft, a rotor, a passage, and a corrugated fin heat transfer structure. The motor shaft is mounted for rotation about a rotational axis. The rotor is located radially about the shaft. The passage extends through the rotor alongside the motor shaft. The corrugated fin heat transfer structure is disposed within the passage radially aligned with the rotor. | 05-10-2012 |
20120126644 | WATERPROOF AND DUSTPROOF MOTOR HEAT DISSIPATION STRUCTURE AND FAN DEVICE USING THE SAME - A fan device includes a housing, a fan wheel assembly, a stator and an enclosure unit. The fan wheel assembly is located within the housing and includes a rotor and a plurality of blades. The stator is connected to a circuit board, and the enclosure unit encloses the stator and the circuit board therein, and is located within the housing. The enclosure unit has at least an extension portion located corresponding to the blades. Heat produced by the stator and the circuit board is transferred to the extension portion and then carried away therefrom by airflow that is sucked into the housing by the blades and blown to the extension portion, so as to cool the extension portion and produce a heat dissipation effect to the stator and the enclosure unit. | 05-24-2012 |
20120161556 | SUPERCONDUCTING ELECTRIC MOTOR - A superconducting electric motor includes: a rotor rotatably arranged; a stator arranged in a radial direction of the rotor to face the rotor; and a refrigerator having at least one narrow tube that flows low-temperature refrigerant inside. The stator has a plurality of superconducting coils wound at a radial end portion of a stator core and formed of a superconducting wire material. The at least one narrow tube has a core penetrating portion that is provided to penetrate through the stator core. Alternatively, the refrigerator has a plurality of narrow tubes, and at least part of each narrow tube is provided in the stator core. Connecting portions that are refrigerant supply/drain connecting portions at both ends of each of the plurality of narrow tubes are provided on both axial sides of the stator at opposite sides in a diametrical direction with respect to a rotation central axis of the rotor. | 06-28-2012 |
20120161557 | SUPERCONDUCTING ELECTRIC MOTOR - A superconducting electric motor includes: a rotor that is rotatably arranged; and a stator. The stator has a plurality of teeth provided on one radial end portion of a stator core and slots, each of which is provided between two of the plurality of teeth, adjacent in a circumferential direction of the stator. Coils are respectively wound around the teeth. The superconducting electric motor further includes a refrigerator that has a narrow tube that flows low-temperature refrigerant inside. At least part of the narrow tube is arranged between two of the coils, adjacent in the circumferential direction of the stator, in one of the slots. | 06-28-2012 |
20120169162 | STRUCTURE FOR HEAT DISSIPATION OF MOTORS - A structure for heat dissipation of motors including a heat dissipation component. A plurality of bosses for heat dissipation is arranged at intervals on the bottom of the heat dissipation component and an airflow passage is formed at the periphery of each boss. The heat dissipation component is a motor controller or an end cover. The structure for heat dissipation of motors is simple and reasonable. It features fast dissipation speed and excellent dissipation effects. It uses fewer materials, and is low in cost. | 07-05-2012 |
20120205997 | Self-contained & propelled magnetic alternator & wheel DirectDrive vertical units. aka:MAW-DirectDrives vertical model - MAW-DirectDrives Vertical Models are direct drive propulsion and electrical generating units for transportation vehicles utilizing wheels for motion, which connect onto the inside of wheels actuating rotation and braking electromagnetically while simultaneously utilizing the rotation to generate electricity to feed back into the supply for reducing the vehicle's requirement for operation. Two pancake style direct drive permanent magnets stators are mounted on sturdy metal mounting backs functioning as the unit's stationary outside faces and outer portion of the unit's wheel hub. The vehicle is supported from their rear face. The stators face one another with a two-sided permanent magnets drive-rotor disc between them accomplishing two functions simultaneously. The drive-rotor is connected to the Integrated Drive-plate Assembly's spindle perpendicular. The spindle with its threaded end traverses through each wheel hubs' bearings and unites the unit together with a lock nut. An attached exterior cylindrical housing keeps the unit rigid and parallel. | 08-16-2012 |
20120205998 | GENERATOR - A generator includes a stationary stator and a rotor disposed rotatably about an axis of rotation. The stator has a fan drawing air from the ambient air around the generator, wherein the inlet channel is disposed such that air drawn in by the fan is distributed at the core of the stator by the channel over the length of the core in the direction of the axis of rotation. Cooling channels running in the circumferential direction of the core and distributed over the length of the core are disposed on the core, wherein the stator comprises an outlet channel disposed offset in the circumferential direction of the core with respect to the inlet channel. The inlet channel is connected to the outlet channel by the cooling channels, such that air from the inlet channel flows through the cooling channels into the outlet channel. | 08-16-2012 |
20120248909 | INVERTER DEVICE - An inverter includes a plurality of switching elements that convert between DC and AC power. A base plate includes a surface on which the switching elements are placed. Heat dissipating fins are provided on the opposite side of the base plate. Power is input and output through AC power terminals to and from a rotary electric machine to drive a vehicle. The terminals are electrically connected to the switching elements. A capacitor smoothes the DC power. The inverter is fixed to a case of the rotary electric machine. A rotating shaft of the rotary electric machine extends in a width direction of the vehicle. The base plate is disposed adjacent to the AC terminals in the width direction. A plurality of AC phase-terminals is sequentially arrayed perpendicular to the rotating shaft. The capacitor is disposed adjacent to the heat dissipating fins on the rear side of the vehicle. | 10-04-2012 |
20120299409 | ELECTRIC MOTOR AND ELECTRIC VEHICLE HAVING THE SAME - An electric motor disposed in an electric vehicle includes a stator, a first rotor located at an outer side of the stator, and a second rotor located at an inner side of the stator, wherein each of the first rotor and the second rotor includes a plurality of first permanent magnets and a plurality of second permanent magnets, made of different materials from each other, whereby a material cost can be reduced and an output can be enhanced. | 11-29-2012 |
20120326540 | MOTOR UNIT - The invention relates to a motor unit ( | 12-27-2012 |
20130015735 | Cooling System and Method for Electronic MachinesAANM Lepres; AttilaAACI MezokovesdAACO HUAAGP Lepres; Attila Mezokovesd HUAANM Komlossy; KarolyAACI DebrecenAACO HUAAGP Komlossy; Karoly Debrecen HUAANM Andejcsik; GaborAACI VeresegyhazAACO HUAAGP Andejcsik; Gabor Veresegyhaz HU - Some embodiments of the invention provide an electric machine module include a housing. In some embodiments, the housing can include at least one end cap coupled to a central member. The housing can include a first axial end and a second axial end. The central member can include at least a portion of a coolant pipe, which can include end portions extending at least partially through the end cap. In some embodiments, an electric machine, which can include a stator assembly, can be positioned within the housing so that the coolant pipe is substantially coiled around at least a portion of an outer perimeter of the stator assembly. | 01-17-2013 |
20130076173 | ALTERNATOR HAVING A HEAT SINK AND METHOD - An alternator includes a housing having an inner surface and an outer surface, a stationary field coil component fixedly mounted to the inner surface of the housing through one or more mechanical fasteners, and a heat sink component mounted to the outer surface of the housing. The heat sink component includes one or more openings that align with corresponding ones of the one or more mechanical fasteners. | 03-28-2013 |
20130076174 | ELECTRIC DRIVE ASSEMBLY - The disclosure describes an electric drive assembly having an electric motor which is arranged in a motor housing and a fan which is arranged on an end face of the motor housing. The fan generates a cooling air flow that removes heat from the electric motor. An electronic controller with electronic components controls or regulates the electric motor. A box-shaped motor panel sits on the motor housing and houses the electronic components. The heat generated during operating of the electronic components can be discharged by means of the motor panel to a heat sink which is in thermally conductive contact with the motor panel. | 03-28-2013 |
20130093272 | ROTARY ELECTRIC MACHINE - A rotary electric machine according to embodiments includes a tubular motor frame, a tubular motor cover, and a cooling fan. The motor frame includes therein a stator and a rotor. The motor cover houses the motor frame and includes a suction hole for cooling air at its counter-load side and an exhaust hole at its load side. Herein, the exhaust hole turns the exhaust direction of the cooling air to the counter-load side. The cooling fan sucks the cooling air from the suction hole into the motor cover and exhausts the cooling air from the exhaust hole to the outside of the motor cover. | 04-18-2013 |
20130093273 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled. | 04-18-2013 |
20130162071 | ELECTRIC MACHINE WITH ENCAPSULATED END TURNS - An electric machine having a rotor and a stator. The stator includes an electrically conductive wire forming a stator winding. The stator winding forms a first plurality of end turns projecting axially beyond an axial end of the stator core. Each of the wire segments forming the first plurality of end turns has a discrete electrically insulative outer layer. A heat transmissive material having a thermal conductivity of at least about 50 W•m | 06-27-2013 |
20130193787 | MOTOR AND BRUSHLESS MOTOR - A brushless motor is provided that is capable of suppressing water from contacting a magnetism detection sensor. A brushless motor includes a rotor section that includes a rotor magnet; a stator section that generates a rotational magnetic field with respect to the rotor magnet; a magnetism guide member that guides a portion of magnetism from the rotor magnet; a control unit that includes a circuit substrate and a circuit chamber which is sealed and houses the circuit substrate; and a magnetism detection sensor that is mounted on the circuit substrate inside the circuit chamber and that detects magnetism guided by the magnetism guide member. | 08-01-2013 |
20130221774 | Cooling Of An Electric Machine - An electric machine including a closed chamber with a wall and enclosing a stator, a rotor and a first fluid and a heat exchanging unit stretching from the chamber through the wall to a fluid transporting passage. The heat exchanging unit includes conduits provided in a loop, containing a working fluid and equipped with evaporator channels and condenser channels, first heat transfer elements inside the chamber for transferring heat from the first fluid to the working fluid via the evaporator channels and second heat transfer elements in the passage for transferring heat out of the working fluid via the condenser channels to a second fluid, a first fluid propagating unit inside the chamber forcing the first fluid to circulate and a second fluid propagating unit in the passage forcing the second fluid to flow past the second heat transfer element. | 08-29-2013 |
20130270940 | Saddle-Type Vehicle - An electric two-wheeled vehicle includes a case, an electric component accommodated in the case and having an electric part producing heat during operation, and a traveling wind guide body for cooling the electric component by traveling wind, and the traveling wind guide body has a traveling wind inlet taking in traveling wind from front, a traveling wind path through which the traveling wind taken in by the traveling wind inlet flows, and a traveling wind outlet ejecting the traveling wind flowing through the traveling wind path toward a radiation fin of the case. | 10-17-2013 |
20130278094 | INTEGRATED DIRECT DRIVE MOTOR AND CONTROL - An outer rotor motor is provided for use in a machine. The motor includes a rotor and a stator. A control board assembly configured to control at least one operational characteristic of the motor is mounted at least in part radially inside the stator. | 10-24-2013 |
20130313929 | CONTROL DEVICE AND ROTATING ELECTRIC MACHINE INTEGRAL WITH CONTROL DEVICE - A control device ( | 11-28-2013 |
20130328424 | ELECTRIC MOTOR - A power element | 12-12-2013 |
20130334914 | VOLTAGE REGULATOR DEVICE FOR A ROTARY ELECTRIC MACHINE, BEARING FOR SUCH A MACHINE EQUIPPED WITH SUCH A DEVICE AND SUCH A MACHINE COMPRISING SUCH A BEARING - A voltage regulator device for a rotary electric machine, notably an alternator and/or an alternator/starter of a motor vehicle, said regulator device ( | 12-19-2013 |
20130334915 | VOLTAGE REGULATOR DEVICE FOR A ROTARY ELECTRIC MACHINE, BEARING FOR SUCH A MACHINE EQUIPPED WITH SUCH A DEVICE AND SUCH A MACHINE COMPRISING SUCH A BEARING - A voltage regulator device for a rotary electrical machine, notably an alternator and/or alternator-starter of a motor vehicle. The regulator device ( | 12-19-2013 |
20130342052 | ELECTRIC MACHINE WITH CIRCUMFERENTIAL ROTOR AND HOUSING FINS - An electric machine is provided with a rotor core rotatable about a central axis. A first end ring is operatively connected to one end of the rotor core. A first housing component at least partially encloses the rotor core. At least one first rotor fin extends from the first end ring in a first direction which may be substantially parallel to the central axis. At least one first housing fin extends from the first housing component in a second direction that is substantially opposite to the first direction. The first rotor and housing fins extend circumferentially around the central axis. The first rotor fin and the first housing fin are configured to interleave, thereby enhancing heat transfer between the first rotor and housing fin, and cooling the rotor core. | 12-26-2013 |
20130342053 | Rotor of Brushless Motor and Brushless Motor Using the Same - The present invention relates to a brushless motor and especially to a rotor of brushless motor. The rotor of brushless motor includes a front cover, a cylindrical casing and a magnet adhered to the inner face of the cylindrical casing. The cylindrical casing is provided with some grooves on its outside surface. The present invention has made the best of the outside surface of the cylindrical casing of the rotor. In this case, an excellent heat dissipating effect can be achieved without changing the structure of the motor since the flow rate of air and the heat dissipating contact area between the air and the rotor is improved during the rotation. | 12-26-2013 |
20140009016 | ARCHITECTURE OF INTERCONNECTED ELECTRONIC POWER MODULES FOR A ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE COMPRISING SUCH ARCHITECTURE - An architecture of interconnected electronic power modules for a polyphase rotary machine, comprising electrically interconnected power modules ( | 01-09-2014 |
20140015356 | SEGMENTED ELECTRIC MACHINE CORE SECURED WITH BELT AND METHOD OF MANUFACTURE - An electric machine having a segmented core wherein the core includes a plurality of core segments. The segments are secured together with a belt member that substantially encircles the core segments but does not extend the full axial length of the segments. In some embodiments, the individual segments include a recess on their outer radial surface in which the belt member is positioned. A method of assembling an electric machine having a segmented core is also disclosed. Coils are wound about the poles of a plurality of segments. After forming the coils on the segments, the segments are joined together with a belt member wherein the belt member does not extend the full axial length of the core segments and is positioned between the two axial ends of the core assembly. | 01-16-2014 |
20140035404 | ANGLED WELD END TURNS FOR COOLANT ACCESS - An electric machine includes a stator core having a plurality of circumferentially-oriented slot positions, each slot position having a plurality of radially-oriented slots, each slot extending longitudinally through the core. The stator core has a plurality of conductor segments each extending through at least one of the slots. When a slot position is populated with at least two conductor segments, at least two exterior conductor portions exiting the slot position are angled radially apart from one another by more than one degree. A method of cooling an electric machine includes providing coolant access to embedded conductor end turn portions of a stator having circumferentially spaced slot positions by radially spreading exterior conductor portions exiting populated ones of the slot positions. | 02-06-2014 |
20140070643 | ROTATING ELECTRIC MACHINE - A rotating electric machine including: a bracket holding a rotor and a stator of a motor; a heat sink provided fixedly to the bracket on an outside of the bracket; a resolver disposed between the heat sink and the motor; a stator circuit portion and a field circuit portion disposed to the heat sink on a side opposite to the resolver; and a control board supported on an insert case attached to the heat sink and electrically connected to the stator circuit portion and the field circuit portion. A resolver input-output terminal is electrically connected to the control board by passing through an insertion hole provided to the heat sink. The rotating electric machine configured in this manner is compact and inexpensive with an excellent heat-releasing performance and a capability of reducing man-hours required for assembly and components required for connection. | 03-13-2014 |
20140070644 | HEAT-SINK BASE PROVIDED WITH HEAT-SINK FIN PORTIONS, METHOD FOR PRODUCING SAME AND MOTOR PROVIDED WITH SAME - The present invention relates to a heat-sink base provided with heat-sink fin portions, it manufacturing method and a motor provided with the heat-sink base. The base is produced by pouring cast metal into a mold cavity to replace a pattern having a predetermined sublimation temperature. The base includes a preformed heat-sink member comprising a plurality of heat-sink fin portions and at least one anchor portion embedded at least partially in the pattern, and a base body comprising an enclosed base portion and a holder portion for receiving and holding the at least one anchor portion. By virtue of the invented method, the heat-sink member having an extremely thin thickness can be mounted on the base body and the overall surface area of the heat-sink base is increased considerably. | 03-13-2014 |
20140070645 | ROTARY ELECTRIC MACHINE - A rotary electric machine in accordance with the invention includes: a case including a front-side housing and a rear-side housing; a rotor having a field winding placed in the case; a stator having an armature winding placed in the case; a power module for energizing armature current that flows in the armature winding; a heat sink, on which the power module is mounted, for cooling the power module; a field circuit module for controlling field current that flows in the field winding; and a control circuit for controlling the operation of the power module and the field circuit module, wherein the power module includes a pair of power modules mounted opposite to each other on a base surface of the heat sink, and the heat. sink includes a plurality of cooling fins placed thereon. | 03-13-2014 |
20140077635 | MOTOR COOLING SYSTEM WITH POTTED END TURNS - A thermal control system includes a stator having conductor end turns at opposite axial ends thereof, and first and second cooling systems respectively disposed at the opposite axial stator ends, each cooling system having a cover, a coolant inlet, a coolant outlet, and at least one cooling channel. Thermally conductive potting compound thermally mates the cooling systems with the end turns. A method of cooling end turns includes providing a cooling system for each axial end of the stator, each cooling system having at least one cooling channel that includes a coolant inlet and a coolant outlet, and thermally mating each cooling system to the respective end turns. A method of cooling end turns includes providing separate cooling systems in each axial end plate of an electric machine, and filling space within the end turns, and between the end turns and the cooling systems, with thermally conductive potting compound. | 03-20-2014 |
20140084722 | LINKED SEMICONDUCTOR MODULE UNIT AND ELECTRONIC CIRCUIT-INTEGRATED MOTOR DEVICE USING SAME - A linked semiconductor module unit links a plurality of semiconductor modules by a first bus bar and a second bus bar, which are embedded in resin parts. The linked semiconductor module unit is disposed in a place other than on a printed circuit board. The semiconductor module linking structure is implemented readily by molding the bus bars together with semiconductor chips and lands to form the resin parts. | 03-27-2014 |
20140125167 | WINDING CONSTRUCTION FOR HIGH EFFICIENCY MACHINE - A permanent magnet motor, generator or the like that is constructed with a concentrated winding and edge form wound stator coils. This achieves less eddy current losses in the windings as well as a much higher power density than conventional techniques. | 05-08-2014 |
20140125168 | ROTARY ELECTRIC MACHINE - A rotary electric machine including a brush used to supply a field current to a field winding of a rotor, a brush holder holding the brush, a power circuit portion connected to a heat sink having fins, and a case covering the power circuit portion and the brush holder. An air passage is provided between the brush holder and the fins of the heat sink, and an opening is provided to the case so as to cover component members of the brush holder in a shape conforming to an outer peripheral portion of the brush holder, from which cooling air is allowed to pass through the air passage. | 05-08-2014 |
20140139059 | ROTATING ELECTRIC MACHINE AND RELATED PACKAGING METHOD - Described is a rotating electrical machine integrating an electronic module comprising a printed circuit, a plurality of electronic power and signal components positioned on the components side of the printed circuit, a plurality of conductor tracks, positioned on the welding side opposite the components side of the printed circuit, which implement the direct electrical connections between the electronic power components; the electronic power and signal components are in contact through a filler with the cap of the electrical machine for allowing an optimum dispersal of the heat generated by them, the contact being guaranteed by elastic elements which press on a support in which the electronic module is housed. | 05-22-2014 |
20140197703 | ELECTRIC MOTOR ROTOR THERMAL INTERFACE FOR HUB/SHAFT - A cooling system of an electric machine includes a hub, a rotor core, and a thermal interfacial material interposed between respective complementary mating surfaces of the hub and the rotor core for substantially eliminating air gaps therebetween. A method of cooling an electric machine having a rotor core and a hub includes placing a thermal interfacial material onto a heat transfer interface between the rotor core and the hub, whereby the thermal interfacial material reduces contact resistance at the heat transfer interface. A method includes providing a rotor core having a radially inner surface, coating at least one of a radially outer surface of a hub and the radially inner surface of the rotor core with a thermal interfacial material, and inserting the hub into the rotor core, whereby the thermal interfacial material is interposed between the inner surface of the rotor core and the outer surface of the hub. | 07-17-2014 |
20140217844 | ELECTRICAL MACHINES AND METHODS OF ASSEMBLING THE SAME - A housing for coupling to a motor having an axis of rotation is provided. The housing includes an end cap having an outer surface and an inner surface. The housing also includes a plurality of first heat fins coupled to the outer surface. Each first heat fin of the plurality of first heat fins includes a first portion extending radially from the axis of rotation. In addition, the housing includes a second portion coupled to first portion and extending parallel to the axis of rotation. The housing further includes a second heat fin coupled to the second portion. | 08-07-2014 |
20140252895 | RADIAL BLOWER AIR GUIDE, SYSTEM, AND METHOD OF COOLING - A radial blower air guide includes a first end wall substantially circumscribing an end bracket of an electric motor. The air guide includes a second end wall spaced apart from the first end wall and has an inner periphery that circumscribes a periphery of the motor. The air guide includes an outer wall extending from an edge of the first end wall to an edge of the second end wall. The outer wall is formed from a thin curved plate and partially defines a ring-shaped chamber therebetween. The outer wall has an aperture defined therethrough. The air guide includes a baffle plate coupled to the inner periphery of the second end wall. The baffle plate extends a first width toward the first end wall and partially defines the chamber. The baffle plate is configured to deflect air to control the distribution of the airflow from the chamber. | 09-11-2014 |
20140265670 | L-SHAPED SHEET METAL COOLING JACKET WITH BAFFLES AND INTEGRATED POWER ELECTRONICS - An electric machine includes a pair of substantially aligned sheet metal housing sections each including a substantially “L” shaped portion, at least one cooling channel being formed at an axial end between the two sections, and a plurality of power electronics components engaged with at least one of the housing sections adjacent the axial end cooling channel. An embodiment includes a stator, a pair of housing sections enclosing the stator, power electronics components positioned at an axial end of the electric machine for controlling operation of the electric machine, and a coolant flow path that includes a power electronics cooling channel formed at the axial end between the housing sections. A method includes forming an axial end cooling channel between two sheet metal housing sections, and positioning power electronics components at the axial end along the cooling channel, whereby heat from the electronics components is transferred to the cooling channel. | 09-18-2014 |
20150115753 | ROTATING ELECTRIC MACHINE - A cooling device mounted in the interior of a frame of a rotating electric machine is configured in such a manner that at least one of the end-face portions between a first end-face portion through which a cooling fluid flows into the cooling device and a second end-face portion from which the cooling fluid flows out thereof is placed tilting with respect to a minimum-width's direction of a frame's internal flow-path in vicinity to the cooling device, or with respect to at least one of an inflow direction and outflow direction of the cooling fluid. | 04-30-2015 |
20150318752 | MOTOR WITH SEALED CONTROLLER HOUSING - An electric motor is provided. The motor is mountable to a machine. The motor includes a rotor rotatable about an axis, a stator, a housing, and a fastener. The housing includes a first endshield and a controller can, with the stator being positioned axially between the endshield and the can. The fastener extends through and interconnects the first endshield, the stator, and the can. The fastener projects axially beyond at least one of the first endshield and the can for connection to the machine. | 11-05-2015 |
20150319839 | DEVICE HAVING HEAT SINK - An electric compressor includes a motor, a scroll compression mechanism, a housing, a circuit unit, a circuit housing housing the circuit unit and integrated with the housing. The electric compressor includes a heat sink provided on a circuit unit side of a partition wall so as to project to be brought into contact with a semiconductor element of a power substrate, facing the partition wall that erects along a vertical direction to separate the inside of the housing from the circuit housing. The heat sink has a lower surface and an upper surface formed into a cylindrical shape so that width of an upper end portion and a lower end portion of the heat sink gradually decreases to reach a tip portion. | 11-05-2015 |
20150354575 | PUMP UNIT - A pump assembly has an electric drive motor arranged in a stator housing ( | 12-10-2015 |
20160006315 | Electromechanical Drive Device - An electromechanical drive device having a housing ( | 01-07-2016 |
20160006322 | ELECTRICAL MACHINE - A rotary electrical machine incorporating an electronic module that includes a printed circuit mounted with a plurality of surface mounted electronic components and a plurality of pin-through-hole electronic components; the electrical machine includes a dissipator for dispersing the heat generated by the electronic module; the surface mounted electronic components and the pin-through-hole electronic components are mounted between the printed circuit and the dissipator; the electronic module also includes a transferring element, also mounted between the printed circuit and the dissipator, in thermal contact with at least one of the surface mounted electronic components; the transferring element is designed to disperse the heat generated by the surface mounted electronic components towards the dissipator with the aid of a thermally conductive and electrically isolating filler material inserted between the transferring element and the dissipator. | 01-07-2016 |
20160013700 | BLENDER MOTOR HOUSING | 01-14-2016 |
20160020678 | ELECTROMECHANICAL INTEGRATED MOTOR AND METHOD OF ASSEMBLING ELECTROMECHANICAL INTEGRATED MOTOR - An electromechanical integrated motor has a motor housing for housing a stator and a rotor, and a power-converter housing for housing a power conversion module integrally joined to the motor housing. The power-converter housing has a radiator wall including the power conversion module attached to a surface on the motor-housing side of the radiator wall, and an outer-peripheral wall having a cylindrical shape, extending further toward the motor-housing side rather than the radiator wall, and being disposed on an outer-peripheral side of the power conversion module. The radiator wall and the outer-peripheral wall are separate members. The radiator wall is supported by the motor housing being capable of rotational movement. A plurality of power conversion modules are attached to the surface on the motor-housing side of the radiator wall, being arranged along a virtual circle having a rotation center of the rotational movement as a center thereof. | 01-21-2016 |
20160028292 | MOTOR COOLING SYSTEMS AND DEVICES - A motor cooling system for cooling a motor unit including a stator assembly and a rotor assembly configured to rotate a rotor shaft, which includes a stator casing and an arm casing. The stator casing includes a stator casing body having a stator casing wall with an internal cavity to receive the motor unit and a rib with a groove defined between adjacent portions of the rib. The arm casing includes an arm casing body having an internal cavity to receive the stator casing and a port in fluid communication with the groove. | 01-28-2016 |
20160036299 | DRIVE DEVICE ASSEMBLED BY AN INTERFERENCE FIT - A drive device is assembled with a fitting outer wall of a heat sink and a fitting inner wall of a frame combined by an interference fit. The drive device allows for a sufficient assembly accuracy of coaxiality, and may prevent a pulsation of motor torque and a vibration sound caused by a tilt of a shaft. Further, heat conductivity at a contacting portion is improved for heat dissipation from an electronic element in a controller section via the heat sink, the frame, and a bottom plate. | 02-04-2016 |
20160043616 | ARCHITECTURE OF DRIVE UNIT EMPLOYING GALLIUM NITRIDE SWITCHES - A drive unit for a motor includes a printed circuit board (PCB); a first gallium nitride switch having a gate, the first gallium nitride switch mounted to the PCB; a second gallium nitride switch having a gate, the second gallium nitride switch mounted to the PCB; a gate driver generating a turn-off drive signal to turn off the first gallium nitride switch and turn off the second gallium nitride switch; a first turn-off trace on the PCB, the first turn-off trace directing the turn-off drive signal to the gate of the first gallium nitride switch; and a second turn-off trace on the PCB, the second turn-off trace directing the turn-off drive signal to the gate of the second gallium nitride switch; wherein an impedance of the first turn-off trace is substantially equal to an impedance of the second turn-off trace. | 02-11-2016 |
20160056681 | INTEGRATED MOTOR AND CONTROLLER WITH INTERNAL HEAT SINK AND SNAP-ON DRIPSHIELD - An electric motor includes a stator, a rotor rotatable relative to the stator about a rotor axis, a motor case, and a motor controller. The motor case presents a motor chamber in which the stator is located. The motor controller is supported relative to the motor case and includes a heat-producing component external of the motor chamber. A heat sink is thermally coupled with the heat-producing component of the motor controller and is located within the motor chamber. A dripshield cooperates with the motor case to define a controller chamber in which the controller is at least substantially located. The dripshield and motor case present complementary pairs of latch components, with each pair of latch components including a dripshield latch component and a case latch component. Each pair of latch components is automatically interlocked to secure the dripshield on the motor case. | 02-25-2016 |
20160056686 | BRUSHLESS WIPER MOTOR - A motor case ( | 02-25-2016 |
20160126799 | COOLING STRUCTURE FOR COOLING A STATOR CORE OF A ROTATING ELECTRICAL MACHINE AND METHOD OF MANUFACTURING THE COOLING STRUCTURE - A cooling structure for cooling a stator core of a rotating electrical machine includes: a stator core ( | 05-05-2016 |
20160134178 | ELECTRIC DRIVE DEVICE - Electric drive device for an electric power steering system that includes an electric motor with a motor case, and a motor shaft with a drive end, an electronic control unit that controls the drive of the motor, According to one embodiment the electronic control unit includes a power board and a heat sink. A connector coupled to a side of the electric drive device is at least partially maintained in its position with the use of one or more projections projecting from a first area of the connector that reside within one or more corresponding housings located in a peripheral region of the heatsink. | 05-12-2016 |
20160149472 | COOLING FOR ELECTRICAL MACHINES - A core for an electrical machine includes a core body, a winding, and a heat sink. The core body defines circumferentially offset winding slots. The winding is seated within the winding slots and has an endturn proximate the end of the core body. The heat sink is embedded in the winding endturn. | 05-26-2016 |
20160149473 | MOTOR CONTROLLER AND MOTOR COMPRISING THE SAME - A motor controller including a control box and a control circuit board disposed on the chamber of the control box. A control chip is disposed on the outer edge of the upper surface of the control circuit board. The outer wall of the control box is depressed inward to form a heat dissipation boss. A gap is formed between the bottom of the heat dissipation boss and the inner surface of the bottom of the chamber. The inner surface of the bottom of the chamber is provided with a plurality of supporting bosses. One outer edge of the control circuit board inserts into the gap, which enables the outer side surface of the control chip to cling to the inner side surface of the heat dissipation boss. The control circuit board is supported by upper surfaces of the supporting bosses. | 05-26-2016 |
20160204669 | ROTATING ELECTRICAL MACHINE FOR A VEHICLE | 07-14-2016 |