| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310418000 | Frame | 58 |
| 20100181873 | METHOD FOR MANUFACTURING AN ELECTRIC MACHINE AND ELECTRIC MACHINE FOR A HYBRID VEHICLE - A method for manufacturing an electric machine, made up of a housing, a stator accommodated in the housing, which is formed from a stator body and stator windings, a rotor, which is supported in the housing so as to be rotatable about a rotor axis, and a bearing support fastened on the housing, the housing being manufactured in that a housing foam part is manufactured from at least three individual foam parts and a housing cast blank is manufactured using the housing foam part in accordance with a lost foam casting method. For this purpose, individual foam parts are made up of a center disk, which has an essentially hollow-cylindrical design and forms an intermediate piece of a housing foam part, an annular disk, which has an essentially hollow-cylindrical design and forms another intermediate piece of the housing foam part, and a bearing support disk, which has an essentially cup-shaped design and forms an end of the housing foam part. The method allows for a flexible design of the housing of the electric machine using as few tools as possible to manufacture the housing foam part. | 07-22-2010 |
| 20100213797 | METHOD FOR CONNECTING PARTS OF A MULTIPLE-PART ROTOR CARRIER, AND ROTOR CARRIER OF AN ELECTRICAL MACHINE - The invention relates to a method for connecting parts of a multiple-part rotor carrier of an electric engine, the rotor carrier having a rotor hub as one part, and a carrier part arranged on the rotor hub, as another part, the rotor hub and carrier part being interconnected in a rotationally fixed manner by means of a connection process. According to the invention, the connection process consists of a penetrating joining method. The invention also relates to a multiple-part rotor carrier of an electric engine, having a rotor hub as one part, and a carrier part arranged on the rotor hub, as another part. The rotor hub and carrier part are interconnected in a rotationally fixed manner on at least one connection point. According to the invention, a penetrating joint is provided as the connection point. | 08-26-2010 |
| 20110227459 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes a frame, a flange, a rotor, a stator, and a plurality of reinforcing bars. The frame has a plurality of side surfaces surrounding a space to form a substantially polygonal shape in a plane perpendicular to an axial direction of the frame. The side surfaces have a first side surface and a second side surface opposite to the first side surface. The frame has an end portion in the axial direction. The flange is provided at the end portion of the frame. The rotor is provided in the space and includes a shaft that is rotatably supported by the flange. The stator is provided in the space to be fixed to an inner section of the frame and to surround the rotor. The reinforcing bars intersect each other and are provided on the first side surface and the second side surface, respectively. | 09-22-2011 |
| 20140077665 | REMOVABLE WOUND STATOR FOR INTEGRATED MOTOR/COMPRESSOR - A pressurized gas cooled high speed motor includes a wound stator and rotor assembly disposed within a pressure vessel such that the stator and rotor assembly can be removed without disconnecting the high pressure lines to the pressure vessel. The stator has a spring loaded axial retention mechanism that cooperates with a concentric groove in the pressure vessel for maintaining the stator and rotor assembly fixedly in place in the pressure vessel during transport and operation of the motor. A shoulder formed in the pressure vessel is used to axially position the stator assembly within the pressure vessel. A key if provided for angularly and fixedly positioning the stator within the pressure vessel. | 03-20-2014 |
| 20140375179 | REINFORCED ELECTROMECHANICAL ACTUATOR HOUSING - An electromechanical actuator housing assembly comprising a reinforcement ring is disclosed herein. The design of the electromechanical actuator housing assembly may be directed to improving load measurement accuracy. The design of the electromechanical actuator housing assembly may be directed to reducing housing deflections. A method of manufacture of an EMA housing assembly is also disclosed herein. This method may include an electromechanical actuator housing assembly having a reinforcement ring. | 12-25-2014 |
| 20150061468 | ELECTRIC MACHINE AND ASSOCIATED METHOD - A method for fabricating a rotor for an electric motor is provided. The method includes the steps of fabricating a first set of rotor parts for use in a motor having a first frame size and fabricating a second set of rotor parts for use in a motor having a second frame size. The second frame size is substantially different from the first frame size. The method further includes the steps of fabricating a third set of rotor parts for use in the motor having the first frame size and for use in the motor having the second frame size, ascertaining the desired motor frame size, and selecting one of the first set of rotor parts and the second set of rotor parts in accordance with desired motor frame size. The method also includes the steps of selecting the third set of rotor parts and assembling a rotor with one of the first set of rotor parts and the second set of rotor parts and with the third set of rotor parts, such that a rotor for use with the desired motor frame size is substantially provided. | 03-05-2015 |
| 20180026491 | SCREWED STATOR FRAME FOR AN ELECTRIC MOTOR AND ASSOCIATED MANUFACTURING PROCESS | 01-25-2018 |
| 310420000 | Shaft mounted spider (e.g., spokes) | 1 |
| 310422000 | Having particular core securing means | 1 |
| 20110278994 | ROTOR OF ROTATING ELECTRICAL MACHINE - A rotating electrical machine is provided in which, even when torque from a water turbine is reduced and reverse torque is applied due to load cut off, a rotor core is not eccentric to spider arms. The rotor of a rotating machine includes a vertical rotating shaft, spider arms extending radially from the vertical rotating shaft, and a rotor core component provided to the outer circumference of the spider arms. A T key and cotters are inserted into and secured to a key way provided to an abutment surface of the inner circumference of the rotor core component and the top end of the spider arm. A plate spring is mounted to a surface of the spider arm, the surface facing a rotational direction for electrical generation. The plate spring has one side engaging the spider arm, the other side engaging the rotor core component, and a middle portion bolted from an opposite surface of the spider arm. | 11-17-2011 |
| 310425000 | Base with bearing support | 44 |
| 20090206708 | FLUID DYNAMIC BEARING APPARATUS AND MOTOR COMPRISING THE SAME - A fluid dynamic bearing apparatus with an increased adhesive strength between a component having an adhesion fixing face and a bracket is provided by appropriately controlling the adhesion gap. | 08-20-2009 |
| 20090251029 | STATOR CAN HOUSING WELDED TO BEARING SUPPORT AND METHOD OF ASSEMBLING A HYBRID TRANSMISSION UTILIZING THE SAME - A motor/generator for a hybrid transmission includes a bearing support configured for attachment to the hybrid transmission. A stator can is bonded directly to the bearing support, possibly by welding. The motor/generator may further include a stator press-fit into said stator can. A method of assembling a hybrid transmission includes welding a stator can to a bearing support, forming a motor/generator housing. A stator is then pressed into the housing. A substantially-complete motor/generator is assembled by installing a rotor, a rotor hub, and a ball bearing into the housing, which are held in the motor/generator housing with a snap ring. The method may include rigidly attaching the substantially-complete motor/generator to a main case. The method may further include testing the substantially-complete motor/generator prior to transporting the motor/generator to a final place of assembly and rigidly attaching the motor/generator to the transmission main case. | 10-08-2009 |
| 20090261692 | Motor - A motor includes a base, a stator and a bearing both mounted to the base, a rotor and a retaining ring. The rotor includes a shaft having an annular groove formed in an outer periphery thereof to form a neck with a first outer diameter. The shaft includes an obstructing portion forming an end edge of the annular groove and having a second outer diameter larger than the first outer diameter. The retaining ring is partially received in the annular groove. The retaining ring includes a combining section for positioning itself and a retaining section delimiting a through hole with a diameter larger and smaller than the first and second outer diameters respectively to form a gap between the through hole and neck. Consequently, noise by friction of the retaining ring against the shaft and departure of the rotor from the base are avoided with unlimited assembly of the motor. | 10-22-2009 |
| 20090273258 | STIFFENER TAB FOR A SPINDLE MOTOR BASE PLATE - An apparatus and method are provided for stiffening a base plate of a spindle motor to improve shock resistance and vibration response, and thereby increase reliability and performance of a disc drive memory system. A stiffener tab for stiffening a base plate is connected to the base plate, extends from the base plate, and is dimensioned to fit adjacent to a stator tooth. Stiffening of a base plate is especially useful in the case of stamped base plate designs that typically have uniform thickness, whereas cast base plate designs are formed with thicker sections. In an aspect, the present invention stiffens a motor cup portion of the base plate, and replaces stiffness lost by removal of material from the base plate to form holes for recessing a stator into the base plate. Axial and angular displacement of a spindle motor during shock events and vibration are decreased. | 11-05-2009 |
| 20100133960 | SPINDLE MOTOR - A spindle motor is disclosed, wherein the spindle motor is formed at an outer periphery of a first protruder of a bearing housing having a gap relative to the inner periphery of the coupling hole of a base with a guide portion contacting an inner periphery of a coupling hole, whereby, the bearing housing is not moved on the base by the guide portion, and whereby the bearing housing is always coupled to a predetermined area of the base, such that when the base assembled with parts is coupled to the product, the parts are always positioned at a predetermined area of the product, thereby improving product reliability. | 06-03-2010 |
| 20100181874 | SPINDLE MOTOR COMPONENT OF HARD DISK DRIVER WITH COMPOSITE COATING LAYER AND COMPOSITE COATING METHOD THEREOF - A spindle motor component of hard disk with composite coating layer and a composite coating method hereof. The spindle motor component of hard disk includes a motor component base ( | 07-22-2010 |
| 20100181875 | SPINDLE MOTOR, DISK DRIVE APPARATUS USING SPINDLE MOTOR, AND METHOD OF MANUFACTURING SPINDLE MOTOR - A spindle motor includes a shaft arranged in an upward/downward direction along a central axis; a base member including a substantially cylindrical holder portion arranged around the central axis; a bearing unit arranged radially inward of the holder portion; and a rotating portion arranged above the base member to rotate about the central axis. The rotating portion preferably includes a mounting surface on which a disk is to be mounted. An adhesive containing an electrically conductive material and an adhesive containing an externally stimulated curing material and/or an anaerobic curing material are arranged in a clearance space defined between an inner circumferential surface of the holder portion and an outer circumferential surface of the bearing unit. The adhesive containing the electrically conductive material is arranged above the adhesive containing the externally stimulated curing material and/or the anaerobic curing material. | 07-22-2010 |
| 20100194249 | SPINDLE MOTOR - A spindle motor is disclosed, wherein a coupling protruder of a stopper is penetrated into a rotor yoke by caulking. Therefore, no foreign objects that are generated from welding process are produced to inhibit the spindle motor from generating defects caused by the foreign objects and to improve the product reliability. Furthermore, the coupled protruder of the stopper is coupled to the rotor yoke by caulking, to make an assembly process simple. Still furthermore, the spindle motor according to the present invention is economical in that, in a case the coupled stopper is to be separated from the rotor yoke, the coupled stopper and the rotor yoke can be simply separated by cutting off a caulked portion of the coupled protruder, thereby allowing the rotor yoke to be re-used. | 08-05-2010 |
| 20100194250 | SPINDLE MOTOR - A spindle motor is disclosed, whereby a bearing is fixed at a support portion of a base to dispense with a bearing housing, thereby reducing the number of parts, shortening an assembly process and reducing the manufacturing cost. Furthermore, the bearing is fixedly inserted into the support portion integrally formed with the base to allow the bearing to maintain a perpendicularity relative to the base, whereby a rotation shaft supported by the bearing can maintain a perpendicularity, thereby reducing noise and vibration. | 08-05-2010 |
| 20100289385 | MOTOR - A motor is disclosed. The motor can include: a rotor equipped with a shaft; a base, in which a housing hole is formed and which includes a housing support portion protruding along a periphery of the housing hole; a housing, which may be inserted in the housing hole to be supported by the housing support portion and in which a through-hole is formed so that the shaft may be inserted in one side of the through-hole; and a rotor support, which may be inserted into the other side of the through-hole and in which a support indentation is formed to rotatably support the shaft. This motor can be manufactured by a simple process at a low manufacturing cost. | 11-18-2010 |
| 20110018404 | SPINDLE MOTOR - A spindle motor is disclosed. The spindle motor includes a bearing housing inserted therein by a bearing, a stator fixed at a periphery of the bearing housing, a rotation shaft rotatably supported by the bearing and formed thereunder with a hitching unit, a rotor fixed at the rotation shaft, and a support member arranged at a floor surface of the bearing housing to rotatably support the hitching unit and formed with a hitching protruder at which the hitching unit is hitched, whereby the number of constituent components is reduced to improve the assemblage. | 01-27-2011 |
| 20110050050 | BEARING STRUCTURE AND SPINDLE MOTOR HAVING THE SAME - A spindle motor is disclosed, wherein the spindle motor includes a bearing housing coupled to the base plate, a bearing disposed in the bearing housing, and a rotating shaft inserted into the bearing to rotatably support to the bearing, a portion of bearing protruded from a circumferential face of the bearing is press-fitted into an inner face of the bearing housing. | 03-03-2011 |
| 20110084575 | Spindle Motor - A spindle motor is disclosed. The spindle motor includes a rotation shaft; a bearing rotatedly supporting the rotation shaft inserted therein; a bearing housing supporting the bearing and coupled to a stator; and a base plate coupled to the bearing housing, wherein the base plate has a reverse burring part projected from an upper part of the base plate along the outer surface of the bearing housing and burred from the upper surface of the bearing housing towards the lower surface opposite to the upper surface to support the outer surface of the bearing housing. | 04-14-2011 |
| 20110156541 | SPINDLE MOTOR - A spindle motor is disclosed, wherein the spindle motor is integrally formed by a one side-exposed cylindrical bearing housing by pressing a metal sheet plate to save material costs and to simplify an assembly process of constituent elements, whereby the manufacturing cost can be reduced, and a bearing housing is press-fitted or bonded to a base without caulking process to make a perpendicularity of the bearing housing against the base accurate, whereby a perpendicularity of a rotation shaft against the base is also accurate, and whereby noise and vibration are reduced, and the integral formation of the bearing housing inhibits oil discharged from the bearing from leaking toward a lower surface of the bearing housing, thereby prolonging the life of the product. | 06-30-2011 |
| 20110156542 | BEARING HOLDER MOUNTING STRUCTURE AND MOTOR - A bearing holder mounting structure which allows a motor to be manufactured with a small number of parts without needing complex processing, and such motor are provided. A rotor | 06-30-2011 |
| 20110163639 | Bearing holder and spindle motor having the same - A bearing holder and a spindle motor having the same are disclosed. The bearing holder in accordance with an embodiment of the present invention can include a body, which has an insertion hole formed therein such that a bearing is inserted into the insertion hole, a first supporting protrusion, which is protruded downward from a bottom surface of the body along a circumference of the insertion hole, and a first bent indentation, which is formed on an inner circumferential surface of the first supporting protrusion such that the first supporting protrusion is bent toward an inner side. Thus, unnecessary deformation in the bearing holder can be prevented while the bearing holder is coupled to a base plate. Moreover, since the bearing holder forms an accurate positional relationship with respect to the base plate, noise and vibration can be prevented from occurring during the operation of the motor. | 07-07-2011 |
| 20110169379 | HEAT INSULATION STRUCTURE FOR COOLING FAN - A heat insulation structure for cooling fan includes a base, a blade hub, and a stator. The base has a ceramic bearing sleeve, which defines an axial inner space for receiving at least one bearing therein. The bearing has an axial shaft hole; and a heat insulating nanomaterial is applied between the bearing and the bearing sleeve. The blade hub has a plurality of blades and a rotor shaft provided thereon. The rotor shaft has an end connected to the blade hub and another end inserted in the shaft hole on the bearing. The stator is fitted around the bearing sleeve, and a heat insulating nanomaterial is applied between the stator and the bearing sleeve. The ceramic bearing sleeve and the heat insulating nanomaterial together protect the bearing against damage caused by heat produced by windings wound around the stator to thereby largely increase the lifetime of the cooling fan. | 07-14-2011 |
| 20110169380 | ASSEMBLY STRUCTURE OF BEARING AND HOLDER OF BRUSHLESS DC MOTOR - Disclosed herein is an assembly structure of a bearing and a holder of a brushless DC motor. The bearing is forcibly fitted into a hollow space formed through the holder. A beveled mouth edge is formed on the upper end of the circumferential inner surface of the holder through which the bearing enters the holder. Therefore, the assembly structure can enhance the workability of the process of assembling the bearing with the holder. | 07-14-2011 |
| 20110187241 | Motor - There is provided a motor including a sleeve supporting a shaft; a sleeve holder allowing the sleeve to be fixed to an inner circumferential surface thereof and having a coupling rack protruding downwardly from a bottom surface in an axial direction; and a base plate having a sleeve holder insertion hole provided therein such that the sleeve holder insertion hole has a curvature defined by an inner circumferential surface thereof, in contact with an outer circumferential surface of the coupling rack of the sleeve holder, and a bottom surface thereof, in contact with a coupling portion of the coupling rack. | 08-04-2011 |
| 20110309724 | MOTOR AND METHOD OF MANUFACTURING THE SAME - The present invention relates to a motor, particularly, to a spindle motor and a method of manufacturing the same, in which a base plate is integrated with a bearing housing an insert molding or insert injection method at the same time when the bearing housing is made of resin, thereby being capable of securing the verticality of a bearing and a pivot assembled with the bearing housing and the base plate, reducing the manufacturing cost, and improving the efficiency of a manufacturing process. The motor of the present invention includes a rotor, a pivot configured to have one end connected to the rotor, a bearing configured to rotatably support the outer circumferential face of the pivot, and a bearing housing made of resin and configured to comprise a first concave groove for receiving the bearing and a second concave groove for supporting the other end of the pivot. | 12-22-2011 |
| 20110316394 | SPINDLE MOTOR - A spindle motor is disclosed, the spindle motor including a bearing assembly including a first floor plate, a first lateral plate extended from an upper edge of the first floor plate, a second lateral plate formed by being protruded from the first floor plate to a direction facing a bottom surface, a bearing housing including the second floor plate and a bearing formed with a rotation shaft hole by being accommodated in the bearing housing; a base plate formed with a burring unit coupled to a periphery of the first lateral plate; a stator including a core coupled to the periphery of the first lateral plate and a coil wound on the core; a rotation shaft inserted into the rotation shaft hole of the bearing; a rotor including a yoke coupled to the rotation shaft and a magnet arranged on the yoke to face the core; an adhesive member arranged at a space formed by the first floor plate, the second floor plate and the burring unit; and a strength reinforcement member including a body fixed to a bottom surface of the base plate, and a strength reinforcement unit whose one part is extended from the body into the space to be arranged inside the adhesive member. | 12-29-2011 |
| 20120153781 | MOTOR - There is provided a motor including a sleeve rotatably supporting a shaft; a sleeve holder having the sleeve inserted thereinto and including fixing parts; and a base member including fixing counterparts corresponding to the fixing parts of the sleeve holder and fixedly coupled to the sleeve holder, wherein the sleeve holder and the base member have guide parts and guide counterparts respectively provided therein, the guide parts and guide counterparts having corresponding shapes and guiding the sleeve holder to a mounting position thereof. | 06-21-2012 |
| 20120235546 | MOTOR - A motor may include a rotation shaft, a drive magnet, a drive coil, a case body covering the drive coil, a slide bearing supporting the rotation shaft and movable in an axial direction, and a bearing holder holding the slide bearing movably in the axial direction through an inner peripheral face. The bearing holder is fixed to an opposite-to-output side end face of the case body and an entire bearing holder is disposed on an outer side of the case body and the case body has opening part having a bearing holding face for slidably supporting the slide bearing together with an inner peripheral face of the bearing holder. A part of the slide bearing is disposed in an inside of the case body and the slide bearing is slidably held by the inner peripheral face of the bearing holder and the bearing holding face of the case body. | 09-20-2012 |
| 20130049546 | SPINDLE MOTOR - Disclosed herein is a spindle motor including: a shaft insertedly mounted so as to be perpendicular to an upper side portion; a sleeve receiving the shaft therein to thereby rotatably support the shaft and forming a space between the sleeve and the shaft to thereby be spaced apart from the shaft so as not to contact the shaft; a holder having the sleeve mounted in an inner portion thereof and having a lower portion mounted on an upper portion of a plate; and the plate integrally supporting lower portions of the shaft and the sleeve and including connecting parts connecting the holder and the plate to each other and fixing parts fixing positions of the holder and the plate so that a lower surface of the holder is coupled thereto. | 02-28-2013 |
| 20130069491 | BASE ASSEMBLY FOR MOTOR AND MOTOR INCLUDING THE SAME - There are provided a base assembly for a motor having improved noise and vibrations generating prevention characteristics by reducing cogging torque generated by a stator core, and a motor including the same. The base assembly includes: a base member having a shaft system of the motor, mounted therein; a stator core mounted on the base member, provided to correspond to a magnet provided in a rotating member of the motor, and having a coil wound therearound, the coil generating electromagnetic force; a dummy core provided on an upper portion or a lower portion of the stator core to thereby reduce cogging torque; and a damping sheet interposed between the stator core and the dummy core. | 03-21-2013 |
| 20130082577 | ADHESIVE RESIN COMPOSITION FOR HDD MOTOR AND HDD MOTOR FABRICATED BY USING THE SAME - There are provided an adhesive resin composition for a hard disk drive (HDD) motor and a HDD motor fabricated by the using the same. The adhesive resin composition includes: 45 to 55 parts by weight of an urethane methacrylate oligomer, 35 to 45 parts by weight of hydroxylalkyl methacrylate, 1 to 3 parts by weight of an acrylic acid, 1 to 2 parts by weight of organic hydroperoxide, and 2 to 5 parts by weight of a photo initiator. The HDD motor may be fabricated using the adhesive resin composition for a HDD motor prepared by controlling contents of an UV curable adhesive and a primer to reduce generation of outgas, whereby improved reliable quality of the motor may be obtained. | 04-04-2013 |
| 20130119828 | MOTOR AND FAN MOTOR USING THE SAME MOTOR - A motor includes a shaft, a bearing for supporting the shaft rotatably, a rotor including a rotor frame to be mounted to the shaft along an axial direction of the shaft, a stator confronting an outer wall of the rotor via a space, and a washer disposed between the bearing and the rotor frame. On top of that, a step section forming a recess is provided to the rotor frame at a place where the washer confronts the rotor frame. | 05-16-2013 |
| 20130154445 | SPINDLE MOTOR - There is provided a spindle motor including: a sleeve having a protrusion extending in a radial direction; a hub having a main wall part enclosing the sleeve; and a regulating member disposed between the main wall part and the sleeve, wherein the main wall part is provided with an adhesive injection hole so that an adhesive is injected between the regulating member and the main wall part. | 06-20-2013 |
| 20130162111 | SPINDLE MOTOR - Disclosed herein is a spindle motor, including: a shaft forming the center of rotation of a rotor; a sleeve receiving the shaft therein and rotatably supporting the shaft; a base coupled to an outer side surface of the sleeve so as to support the sleeve; and a conductive adhesive applied to a coupled surface between the sleeve and the base. According to the present invention, the conductive adhesive is used at the time of adhering between the sleeve and the base of the spindle motor, thereby making it possible to discharge excessive electric charges generated at the time of driving the spindle motor to the outside through the base. | 06-27-2013 |
| 20130257229 | BRUSHLESS MOTOR, DISK DRIVE APPARATUS AND BRUSHLESS MOTOR MANUFACTURING METHOD - A brushless motor includes a plate-shaped armature and a magnet facing either one of a top surface and a bottom surface of the armature. An inner peripheral surface of a base member and an outer peripheral surface of a bearing mechanism contact with each other or face each other in a diametrical direction with an adhesive therebetween in a first fixing part. Further, a rotor yoke and a hub protrusion contact with each other or face each other in a diametrical direction with an adhesive therebetween in a second fixing part. Then, a press-fitting or adhesion is carried out in the other of the first and the second fixing part. | 10-03-2013 |
| 20130278116 | BRUSHLESS DC MOTOR - Disclosed herein is a brushless DC motor that ensures stable driving of a shaft that rotates in a hollow of a bearing by using a bearing with a flat bottom surface and a tapered top. A contact height between an inner peripheral surface of the bearing and an outer peripheral surface of the shaft is larger than a contact height between an outer peripheral surface of the bearing and an inner peripheral surface of a bearing holder. | 10-24-2013 |
| 20140009040 | SPINDLE MOTOR - There is provided a spindle motor including: a stator rotatably supporting a rotor; and a stator core fixed to the stator and having a front end disposed to face a driving magnet included in the rotor and a coil wound therearound, wherein the stator includes a base member, an insertion groove being formed in the base member, and having a lower portion of the coil inserted therein. | 01-09-2014 |
| 20140009041 | ROTATING ELECTRICAL MACHINE - Inner rings of bearings arranged at both ends of a rotor shaft are fixed to the rotor shaft, and outer rings of both of the bearings are arranged at bearing holding parts movably in an axial direction of the rotor. A preload imparting member is attached to one of the bearings, the preload imparting member being configured to bias the rotor shaft in one direction and to apply a biasing force to make a housing and a flange, which constitute a chassis, come close to each other. | 01-09-2014 |
| 20140035442 | Bearing Structure and Spindle Motor Having the Same - A spindle motor is disclosed, wherein the spindle motor includes a bearing housing coupled to the base plate, a bearing disposed in the bearing housing, and a rotating shaft inserted into the bearing to rotatably support to the bearing, a portion of bearing protruded from a circumferential face of the bearing is press-fitted into an inner face of the bearing housing. | 02-06-2014 |
| 20140091679 | BASE UNIT, MOTOR AND DISK DRIVE APPARATUS - A base unit includes a base member including a first through-hole, a peripheral edge portion, and a thin portion, and a bushing including a bearing holding portion and first and second protrusion portions. The first and second protrusion portions respectively extend radially outward from an upper end portion and a lower end of the bearing holding portion. The first through-hole axially extends through the base member. The first through-hole is defined by an inner surface of the base member radially opposed to the bearing holding portion. The peripheral edge portion extends radially outward from the first through-hole. The thin portion is arranged radially outward of the peripheral edge portion. The thin portion has an axial thickness smaller than that of the peripheral edge portion. The bushing is arranged within the first through-hole. The peripheral edge portion is arranged between the first protrusion portion and the second protrusion portion. | 04-03-2014 |
| 20140097726 | Spindle Motor - A spindle motor is provided, the motor comprising: a base plate, a PCB on the base plate, a bearing assembly arranged on the base plate, a stator coupled to a periphery of the bearing assembly, a rotor rotationally coupled to the bearing assembly, the rotor including a yoke and a magnet, and a rotation shaft rotationally coupled to the bearing assembly. The base plate includes a planar portion and a protruding portion arranged along with a periphery of the yoke, the protruding portion being apart from the yoke. The base plate is partially covered with the PCB in a region where the stator is arranged. And, a height from the planar portion to an upper surface of the protruding portion is smaller than a height from the planar portion to a lower surface of the periphery of the yoke. | 04-10-2014 |
| 20140203691 | MOTOR AND DISK DRIVE APPARATUS - A motor for use in a disk drive apparatus includes a bearing, a rotary unit, a stator, a thin flat base member, and a cylindrical holder extending in an axial direction. The base member includes a first through-hole, a peripheral edge portion, and a thin portion. The thin portion is located radially outward of the peripheral edge portion. The thin portion has an axial thickness smaller than an axial thickness of the peripheral edge portion. The holder includes a first protrusion portion and a second protrusion portion. The first protrusion portion extends radially outward and is located axially above the peripheral edge portion. The second protrusion portion extends radially outward and is located axially below the peripheral edge portion. The bearing is located inside the holder. A stator core is located radially outside the holder and axially above the thin portion. | 07-24-2014 |
| 20140252922 | ELECTRICAL MACHINES SUCH AS GENERATORS AND MOTORS - An electric machine may employ a distributed bearing, for example spaced radially outwardly of a longitudinal center of a rotor and stator assembly. The distributed bearing may take the form of a wire race bearing, which positions a rotor assembly relative to a stator assembly to maintain an air gap therebetween. The rotor assembly may be concentrically located within the stator assembly. Electrically insulative fasteners may couple a race assembly to the stator or rotor assembly. Compensation fastener assemblies may couple the wire race assembly to the rotor or stator assembly, to compensate for differential expansion for instance thermal differential expansion along a longitudinal axis of the electric machine. The electric machines may be arranged in series, for example with drive shafts arranged along a common axis, and may be coupled to the same source of motion (e.g., propeller of wind turbine, without or with a gear box). | 09-11-2014 |
| 20140265737 | ELECTRIC MOTOR HAVING SUPPORT SURFACES FOR MAINTENANCE - According to one embodiment, an electric motor includes a stator, a rotor, bearings and a rotor shaft, in a frame, supporting surfaces on the rotor, and a plurality of threaded holes in the frame, which are configured to receive bolts for pressing the support surfaces from outside. | 09-18-2014 |
| 20140285071 | BEARING IMPLEMENTATION FOR A ROTATING ELECTRICAL DEVICE - In one embodiment, an electric motor includes at least three bearings. The ball bearing utilized in the three bearings may be sized based on benchmark surface areas associated with the ball bearing utilized in a conventional electric motor having two bearings. Moreover, a technique may be implemented to reduce the diameter at a point on the shaft where a backup or second bearing makes contact with the shaft. When the motor begins to operate, for example, at a first time, the at least three bearings together handle a the load coming through the motor. When the front-most bearing degrades to a predetermined point or fails, for example, at a second time, the load transitions from the front most bearing to the second or backup bearing in the front plate. | 09-25-2014 |
| 20140292162 | HOBBY SERVO BLOCKS - Hobby servo blocks are provided. In certain circumstances, servo blocks may increase a servo's load-bearing capabilities by helping to isolate the lateral load from the servo spline and case. The extreme versatility of servo blocks allow users to create complex, extremely rigid, structures with ease using standard servos. The robust framework acts as a servo exoskeleton, greatly enhancing the mechanical loads the servo can withstand. Additionally, servo blocks may include a hub pattern that is repeated throughout the framework to allow endless attachment options. | 10-02-2014 |
| 20150108877 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes: a stator around which a coil is wound; a frame which fixes the stator; a rotor which faces the stator via a slight air gap; a shaft which is fixed to the rotor and is rotatably and removably supported via a bearing; and a bracket which supports the bearing inside a bearing box. The rotary electric machine includes: an insulating member which is mounted inside the bearing box of the bracket; a metal holder which is mounted inside the insulating member with a predetermined clearance with respect to an outer ring of the bearing, and supports the bearing; and a pressing body which is mounted between the side surface of the metal holder and the side surface of the outer ring of the bearing. | 04-23-2015 |
| 20150377300 | BEARING UNIT AND MOTOR - The bearing unit comprises: a bearing housing being formed into a cylindrical shape; and a bearing section being attached in the bearing housing. The bearing housing is made of resin. Grooves and projecting stripes are formed in an inner circumferential face of a housing hole of the bearing housing and an outer circumferential face of the bearing section, and they are extended in an axial direction. The bearing section is fitted into the bearing housing from an opening part of the bearing housing, in a state where the grooves and the projecting stripes are corresponded to each other, until the bearing section contacts an inner end face of the housing hole. A retaining projection of the bearing housing, which is formed at one end of the housing hole located on the one end side of the bearing housing, is deformed to overlap an end face of the bearing section. | 12-31-2015 |
| 20160156245 | CANTILEVER STATOR | 06-02-2016 |
| 310427000 | Supported by axial bar | 1 |
| 20180026490 | WELDED STATOR FRAME FOR AN ELECTRIC MOTOR AND ASSOCIATED MANUFACTURING PROCESS | 01-25-2018 |
| 310428000 | Axially split frame | 1 |
| 310430000 | Welded sections | 1 |
| 20150061469 | SPOT WELDS ALIGNING MOTOR COMPONENTS - Provided herein, is an apparatus that includes a first weld attaching a first motor component and a second motor component, a second weld attaching the first motor component and the second motor component, and a plurality of spot welds along a joint between the first and second weld wherein the plurality of spot welds are configured to align the first motor component and the second motor component. | 03-05-2015 |
| 310431000 | Having resilient core attachment means | 2 |
| 20120043861 | METHODS AND APPARATUSES FOR ATTACHING A STATOR CORE TO A GENERATOR FRAME - A generator including a generator frame ( | 02-23-2012 |
| 20150097469 | GENERATOR SPRING BAR ENHANCEMENT FOR CORE SUPPORT SYSTEM - A generator including a frame ( | 04-09-2015 |
| 310432000 | Having axial tie bar for attaching core | 2 |
| 20140021831 | ELECTRIC MOTOR - A rear frame has a fastening portion, which radially extends from an outer peripheral surface of the rear frame and receives a fastening force of a through bolt. A circuit board, which includes a control circuit, is installed to an axially outer surface of a main body of the rear frame. A reinforcing portion is provided in the fastening portion to limit deformation of the main body of the rear frame, which is induced by the fastening force of the through bolt. | 01-23-2014 |
| 20140084755 | ON-VEHICLE ROTARY ELECTRIC MACHINE - An on-vehicle rotary electric machine includes a first member provided with a stator, a rotor, and a housing in which the stator and the rotor is housed, a second member adjacent to the first member in an axial direction, and a third member adjacent to the second member in the axial direction at an opposite side of the first member, and the first member, the second member, and the third member are pierced by a through bolt in the axial direction and are fixed. | 03-27-2014 |
