Abstract: A support (200) is described for fixing an electric motor (3) to a tub (6) of a washing machine (1) or similar household appliance. The electric motor (3) is of the type with external rotor (70), for driving in rotation a drum (2) supported in the tub (6); the electric motor (3) is provided with a control circuit board (100) associated with a heat dissipator (33). The heat dissipator (33) is integrally formed with the support (33).

Abstract: A fan motor includes a frame (10) and a motor (30). The frame includes a supporting plate (13) and a central tube (16). A pair of arms (181) extends upwardly from the supporting plate and spaces from each other to form a gap (184) therebetween. Each arm has a barb (182) at a top end thereof. The motor includes a circuit board (31) and a stator (33). The stator defines an axial hole (338) for receiving the central tube therein. The circuit board defines a fixing hole (312) therein corresponding to the pair of arms. The pair of arms extend through the fixing hole with the barbs of the pair of arms abutting on the circuit board. A pin (191) is inserted into the gap between the pair of the arms.

Abstract: A thrust plate used in a fluid dynamic pressure bearing of the present invention includes a concave portion in which a lower end portion of a shaft is accommodated. The thrust plate is immersed in a lubricant, and is disposed between the lower end portion of the shaft and a bottom-portion upper surface of a bearing housing without being fixed to the bearing housing. Accordingly, the thrust plate radially moves in accordance with the position in which the lower end portion of the shaft is in contact with the concave portion of the thrust plate. As a result, the centers of the shaft and the thrust plate motor can be aligned satisfactorily.

Abstract: A brushless motor includes a motor drive unit, a circuit board arranged to drive the motor drive unit having through holes formed in the upper surface and the lower surface; and a motor attachment plate including a plate-shaped base portion and plate-shaped fixing portions to fix the circuit board in place. Herein, each fixing portion includes a support portion for making contact with a surface of the circuit board; an arm portion bent in a direction that is substantially parallel to the rotational axis; and a protrusion portion inserted into a through hole, having at least one overhang extension protruding from the through hole. The overhang extension of the protrusion is bent in a direction that is substantially perpendicular to the rotational axis.

Abstract: An apparatus is disclosed for enhancing the operation performance of a servo. The apparatus comprises a rotational enhancement mechanism configured to functionally engage an output shaft associated with the hobby servo and a support panel displaced from the servo and having a aperture formed therein for receiving the rotational enhancement mechanism.

Abstract: The invention provides a press in style motor attachment mount assembly. The assembly includes a motor and a vibration isolator. The motor has an end portion axially remote from the output end and a stop facing the output end. The vibration isolator includes a cup that axially receives the end portion of the motor. The cup includes an end wall, a sidewall, and flexible fingers integrally connected to the sidewall. The flexible fingers have a flexed position in which the tip of the flexible finger is disposed radially outwardly to allow axial assembly of the end portion of the motor into the cup and a locking position where the tip engages the first radial stop to prevent axial detachment of the motor from the cup.

Abstract: The invention provides for a motor attachment assembly that includes an electric motor having spring clips adapted to securely lock onto the isolation posts of a plastic post vibration isolation system. The motor includes an end cap that has notches which cooperate with locator tabs of the motor housing to lock the cap onto the housing with the spring clips therebetween. Each clip includes an axial slot that is expandable in an open direction to receive an isolation post and biased in the closed direction to retain the isolation post. Each clip also has an inner surface with barbs protruding into the channel to allow insertion of the isolation post into the channel in the direction of the output shaft and to resist movement of the isolation post in a direction opposite to the output shaft. The inner surface has a retention groove to receive plastically deformed portions of the isolation post.

Abstract: A rotor. The rotor includes a case, a reinforcing part, a shaft and a connecting element. The reinforcing part is formed with the case and defines an opening. The shaft extends into the opening. The connecting element connects the case and the shaft, with the reinforcing part disposed inside.

Abstract: In a vibration motor holding structure for retaining a vibration motor having eccentric weights at rotation shaft ends and holding the vibration motor on a circuit board, there is provided a metal holder having support legs provided along a part of the length of the vibration motor and protruding horizontally in the direction orthogonal to the longitudinal direction of the vibration motor on both sides thereof. Thus, the vibration motor can be prevented from falling over during the mounting process and be held on the circuit board at solder-applied positions.

Abstract: A mounting device for a motor used in a household appliance for treating laundry items, which can be a washer and a dryer, the mounting device including at least two connecting members operatively associated with the motor; at least two holding members operatively associated with the household appliance wherein each connecting member is configured for mechanically connecting to a respective holding member; and a latching element for operational association with a connecting member and the respective holding member to maintain at least one mechanical connection between the connecting member and the respective holding member.

Abstract: A temporary interconnection element to be installed between the rotor and the stator of a bearingless electric machine, for example during its transport, storage or assembly is described herein. The interconnection element is so designed that the rotor may be secured to an external assembly, such as for example the shaft of an internal combustion engine, before the element is removed from its interconnection position.

Abstract: A bearing support for use in a motor includes a tube (50) having an exterior surface and an interior surface. A plurality of first protrusions (52) on the exterior surface of the tube (50) are provided for engaging a stator (2) of the motor mounted around the tube. A plurality of second protrusions (55) on the interior surface of the tube (50) are provided for engaging a bearing (60) of the motor. The first and second protrusions are alternated along a circumferential direction of the tube.

Abstract: A motor arrangement is provided and includes a mounting clamp having flanks that support the shaft lugs of a motor. The mounting clamps includes arms that are in rotation-blocking contact with a motor housing of a motor and these arms are elastically configured so that deviations in housing dimensions from one make of motor to the other can be adapted.

Abstract: A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.

Abstract: A motor includes a rotor part having a rotor shaft and a rotor magnet, a stator part oppositely disposed to the rotor magnet via a gap space, a bearing rotatably supporting the rotor shaft, a spring member abutting with one end of the rotor shaft to urge the rotor shaft in an axial direction. A spring member side restricting part is provided in the spring member to prevent fluctuation in the radial direction of the rotor shaft and a rotor shaft side restricted part is provided in the rotor shaft and engages with the spring member side restricting part.

Abstract: A chain support structure for a planar motor comprises: a fixing base, a support arm and a load-bearing member, the fixing base is fixed to the stator, the support arm has one end connected to the fixing base and has the other end connected to the load-bearing member, respectively, and the load-bearing member supports the chain from the gravity direction of the chain the chain, so as to prevent the chain from the gravity-caused sag of the chain, and prevent the abrasion or damage caused by the chain rubbing against the stator.

Abstract: An electric machine is described herein. The machine includes an internal stator provided with a central opening. A generally cylindrical cooling assembly is mounted inside the central opening via a first key and keyway arrangement. The cylindrical cooling assembly is mounted to the casing of the electric machine via a second key and keyway arrangement.

Abstract: To provide a driving force transmission mechanism in which the thickness can be reduced as well as the positioning between a driven shaft and driven, and a motor shaft of a motor is easy. The driving force transmission mechanism of the invention comprises a plate through which a reference hole is pierced, a driven shaft vertically standing with respect to an inner surface on the side of the inner surface of the plate, a driven gear pivotally provided around the driven shaft, a bracket fixed to the plate so as to cover the reference hole on the side of the inner surface of the plate, and a stepping motor protruding a motor shaft toward the reference hole, being fixed to the bracket. The motor shaft is positioned through the reference hole with driving tooth formed at the motor shaft to be directly engaged with the driven gear.

Abstract: The present invention generally provides a motor-fan unit including a motor assembly having a shaft, a commutator supported on the shaft, and a pair of brushes in electrical contact with the commutator, a fan assembly having an impeller coupled to the shaft, an end plate assembly located between the impeller and the motor assembly said end plate assembly including a plate portion defining an opening throughwhich the shaft passes, wherein said commutator is located near the opening, and a pair of brush retainers adapted to receive the brushes formed on the plate portion adjacent said commutator, the brush retainers opening toward the fan assembly.

Abstract: A regulator assembly mounting threaded aperture is formed on an inner wall surface of a rear bracket, and a receiving recess portion is recessed into an inner wall surface of the rear bracket around the regulator assembly mounting threaded aperture. A regulator assembly mounting penetrating aperture is disposed through a base of a regulator assembly, and an engaging protruding portion is disposed so as to project from the base around the regulator assembly mounting penetrating aperture. The regulator assembly is fixed to the rear bracket by engaging the engaging protruding portion in the receiving recess portion and fastening a regulator assembly mounting screw that has been passed through the regulator assembly mounting penetrating aperture into the regulator assembly mounting threaded aperture.

Abstract: There is provided a holding structure to hold a vibration motor on a circuit board with a sufficient holding strength using an inexpensive and simple means such as caulking and bonding and a vibration motor held on a circuit board using the holding structure. The holding structure having a holder clamps a vibration motor body having an eccentric weight at an end of the rotation shaft around the outer periphery from the outside and supports the vibration motor at the lower part.

Abstract: A heat dissipation fan includes a fan frame, a stator mounted to the frame, and a rotor rotatably disposed around the stator. The fan frame includes a bracket, a central tube for positioning the stator, and a supporting member. The supporting member is made of a material having a higher bending strength than a plastic material used to form the bracket and the central tube. The supporting member includes a main body connected to the central tube, a plurality of ribs extending radially outwardly from the main body, and a plurality of engaging units formed at free ends of the ribs, respectively. The engaging units are embedded in the bracket for integrally connecting the central tube to the bracket.

Abstract: An electric fan includes a frame (10) having a central tube (12) extending therefrom, a bearing (30) received in the central tube, a stator (50) mounted around the central tube, and a rotor (70) being rotatably supported by the bearing. The frame defines an air inlet (19) and an air outlet (17) at two different sides thereof. The stator includes a stator core (52) having a central cylinder (520). A plurality of radial posts (522) extends from the central cylinder. A plurality of magnetic poles (524) is formed at free ends of the posts. A plurality of stator coils (54) is wound around the posts. Each magnetic pole includes a lower portion (700) adjacent to the air outlet and an upper portion (60) adjacent to the air inlet. The upper portions expand radially along a direction from the air inlet to the air outlet.

Abstract: A mounting structure for a motor includes a central tube (16), a supporting plate (13) and a motor-stator (30). The central tube includes two positioning blocks (162). The supporting plate includes a mounting block (18). The motor-stator includes a printed circuit board (31) and a stator (33). The stator defines an axis hole (337) for receiving a portion of the tube therein and two positioning grooves (3332) in an inner surface thereof. The printed circuit board defines a cutout (311) therein. One of the stator and the tube is rotated from an unlocked position, where the positioning blocks are located just above the positioning grooves and the mounting block is received in the cutout, to a locked position, where a bottom surface of the positioning blocks abut against a top surface of the stator and the mounting block leaves the cutout and engages with the printed circuit board.

Abstract: The application includes various embodiments of devices and methods for mounting a motor within an image forming apparatus. The motor is mounted on a frame and positioned to engage and drive a component within the image forming apparatus. In one embodiment, the component is an imaging unit. The frame includes an opening to receive the motor. A locating member is attached to the frame and extends into the opening to contact the motor and provide accurate positioning for engagement with the component. The locating ring provides for a press fit with lower forces. Additional fasteners may fixedly connect the motor to the frame and maintain the accurate positioning provided by the locating member.

Abstract: A vibration exciter, particularly for a vibration pile driver, comprising at least two axles disposed parallel to one another, as well as at least two imbalance masses, which are attached to one or more of the axles. The relative rotary position of the imbalance masses can be adjusted relative to one another by at least one rotary oscillating motor having a rotor shaft and a stator housing. The rotor shaft is an integral part of one of the axles, and the rotary position of the stator housing relative to the rotor shaft can be changed. The stator housing can be locked to the rotor shaft. An oscillating motor suitable for use in a vibration exciter, comprises a rotor shaft and a stator housing, between which working chambers are formed. The stator housing can rotate about the rotor shaft and can be locked relative to the rotor shaft.

Abstract: A shaft assembly includes a rotatable shaft, an upper supporting frame having a bearing cavity, a lower supporting frame coupling with the upper supporting frame, a bearing assembly, and a shaft guider. The bearing assembly includes a first bearing rotor disposed in the bearing cavity to coaxially engage with the rotatable shaft and a second bearing rotor coaxially engaging with the rotatable shaft, wherein a circumferential size of the bearing cavity is larger than an outer diameter of the bearing module. The shaft guider is coupled between the first and second bearing rotors to retain a position of the bearing assembly with respect to the rotatable shaft, wherein the shaft guider has an outer diameter smaller than the circumferential size of the bearing cavity and an inner diameter smaller than an outer diameter of each of the first and second bearing rotors.

Abstract: A mounting frame for an electric motor includes tabs projecting laterally from the mounting frame for mounting a stator of the electric motor to a mounting surface. Between the tabs, the mounting frame includes stop areas that define the position of the stator with respect to the mounting surface. In an electric motor having such a mounting frame, the frame is connected directly to the core stack of the stator of the electric motor.

Abstract: When a bracket to which an electric motor for wipers has been attached is attached to a vehicle body via a rubber mount therebetween for antivibration, vibrations generated when the electric motor is actuated are prevented from being transmitted to the body while allowing a part not tightened with a nut to act as a free end. A part of the rubber mount being in contact with the body is formed as a truncated cone part tapered toward a front edge so that the front edge of the rubber mount being in contact with the vehicle body does not have a part not tightened with the nut. As a result, there is no part that is not tightened with the nut and that acts as a free end, and the function to prevent vibrations from being transmitted is further improved.

Abstract: A motor protector receiving bracket (10) is shown for use with a multiphase motor protector having at least two terminal pins (4 and 5). The bracket has a back wall formed with first (12e) and second (12h) slots for receiving respective pin terminals of the protector cradled in the bracket and are formed with features to prevent any movement of the protector relative to the bracket. The bracket is in turn adapted to be attached to a spring clip (14) welded to a motor casing for a low cost attachment system.

Abstract: An electric motor includes a stator, a rotor positioned adjacent the stator and cooperating with the stator to generate a torque, and a bearing support assembly coupled to the rotor to at least partially support the rotor for rotation. An end frame includes a post positioned to engage and support the bearing support assembly. The end frame and the bearing support assembly cooperate to define a space therebetween. A mainframe is coupled to and cooperates with the end frame to substantially enclose the stator, and a set of electronics for controlling the motor is mounted in the space.

Abstract: A motor and its bearing supporting structure are disclosed. The bearing supporting structure supporting a shaft includes a bushing, a bearing and at least one first limiting assembly. The bushing has an opening and an accommodating space. The bearing supports at least a portion of the shaft and is disposed in the accommodating space. The first limiting assembly is disposed at a connection of the bearing and the bushing.

Abstract: Provided is a fan motor apparatus. The fan motor apparatus includes a rotor and a stator. The rotor includes a blade. The stator includes a rotor supporting mechanism, a supporting member, and a vibration insulation member. The rotor supporting mechanism rotatably supports the rotor. The supporting member supports the rotor supporting mechanism. The vibration insulation member is provided between the rotor supporting mechanism and the supporting member. The stator is capable of regulating relative movement of the rotor supporting mechanism and the supporting member.

Abstract: A stepping motor includes a housing a supporting shaft a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

Abstract: A motor arrangement for mounting a variety of different sized motors on a carrier. The arrangement includes a mounting clamp, which is fixed to the motor and includes means for fixing the motor to the carrier. The motor has a housing, which is eccentric in relation to its rotational axis and from which shaft projections protrude. The mounting clamp has two flanks located on each side of a motor receiving cavity. The flanks each have a recess for receiving one of the shaft projections of the motor. The mounting clamp further includes a pair of arms, which contact the motor in an elastic manner to block rotation of the motor about its rotational axis.

Abstract: A frameless torque motor with a transport securing device wherein the torque motor includes a ferromagnetic primary element and a secondary element, having magnets oriented in a direction toward the primary element, wherein the primary element and the secondary element are fixed to each other by a magnetic force generated by the magnets. A transport securing device that maintains the magnets spaced apart from one another, wherein the transport securing device includes a spacer in an air gap between the primary element and the secondary element.

Abstract: A throttle body assembly including an end plate. The throttle body assembly includes a housing having an inner wall, and a motor located within the housing. The motor end plate is coupled to the motor and is in contact with the inner wall of the housing. The end plate includes an outer edge having at least one protrusion extending therefrom. The contact between the end plate and the housing is substantially only between the at least one protrusion on the outer edge of the end plate and the inner wall of the housing.

Abstract: A spindle motor includes a stator structure and a rotor structure coupled to the stator structure. The stator structure has a stator base, a magnetic conductive structure surrounding the stator base, and a first buffer structure provided in the gap defined by the stator base and the magnetic conductive structure and in contact with both the stator base and the magnetic conductive structure. Furthermore, a second buffer structure and a third buffer structure are respectively provided between the stator base and the casing and between the stator base and the base plate.

Abstract: A direct-current motor includes a stator having a magnetic field system, a rotor disposed around the stator, a commutator which rotates together with the rotor, and power supply brushes which are urged in the axial direction by urging members so as to come into contact with the sliding contact surfaces. The rotor includes an armature core around which armature coils are wound, and a rotary shaft which rotates together with the armature core. The commutator has segments extending radially. The segments have sliding contact surfaces orthogonal to an axial line of the rotary shaft. At least a part of each power supply brush comes into contact with the sliding contact surface at a position further radially outward than the armature coil.

Abstract: An electric motor produces an increased output torque for a given amount of input electrical current by using two magnetic field parts adjacent a winding part. Preferably, the winding part is disposed between the field parts. In a first embodiment, the two field parts are radially spaced from one another with the winding part therebetween. One field part is mounted on a hollow post through which an output shaft extends and on which a bearing is mounted for rotatably supporting thereon the winding part. In a second embodiment, the field parts are axially spaced from one another with the winding part therebetween. Axially spaced mounting wheels are connected to the output shaft for supporting therebetween a plurality of windings. The third embodiment includes a plurality of output shafts and a rotor suspended by interaction between pinions on the shafts and rotor gears.

Abstract: A motor adapted to rotate an element of an appliance, for example, a drum of a washing machine, is disclosed. The motor includes a rotating shaft which is rotatably mounted to a motor mounting member of an appliance, a rotor which includes magnets circumferentially arranged at a position radially spaced apart from a center of the rotating shaft by a predetermined distance such that N and S poles are alternately arranged, and a stator which includes a core made of metal, an insulator enclosing the core while allowing a surface of the core facing the magnets of the rotor to be outwardly exposed, the insulator being made of an insulating resin material, coils wound on the insulator, and a circular molded member formed in accordance with an insert molding method to enclose the insulator and the coils while allowing the surface of the core outwardly exposed through the insulator to be outwardly exposed.

Abstract: A rotary electric machine includes a frame; a stator whose stator-slot number Ns is 12; a rotor whose rotor-pole number Np is 8, the rotor being disposed inside the stator. The frame has a frame thickness T(?) at mechanical angle ?, with respect to a reference line that connects the inner circumferential center of the frame with an arbitrary point, other than the center, around the center that is circularly expanded in a Fourier series. The difference between the stator-slot number Ns and the rotor-pole number Np is k (=|Ns?Np|). Stress-relieving spaces are located in portions of the frame in an arrangement that does not have 90-degree mechanical angle rotational symmetry, in such a way that the sum P of inclusion ratios for the k-th component Tk and the Np-th component TNp, which are the Fourier series expansion coefficients for the frame thickness T(?) expressed by equation (2). P = ( T k + T N ? ? p ) / ? n = 0 ? ? T n × 100 ? [ % ] ( 2 ) , is less than 12%.

Abstract: An alternator is composed of a frame, a rotor rotatably supported in the frame, a stator contained in the frame outside the rotor and other associated components. A front end of the alternator is directly mounted on a mounting surface of an engine having a fairly large size, and a front end of a rotor shaft is directly connected to an engine shaft. The frame includes inlet windows for introducing cooling air into the alternator and outlet windows for exhausting the cooling air after cooling a stator coil and other components in the alternator. The inlet and outlet windows are positioned so that cool air is always introduced into the alternator, preventing hot air once exhausted from the alternator from staying between an engine bracket and the inlet windows and being sucked again into the alternator. Further, the outlet windows are positioned at a radial outside of a front coil end of a stator winding, so that the front coil end is fully exposed to the cooling air.

Abstract: A stepping motor is provided. The stepping motor comprises a bracket, a lead screw having a first side rotatably supported by the bracket, and a housing. A second side of the lead screw is disposed in the housing such that the lead screw is rotatably supported thereto, and a portion of the bracket is inserted into the housing so as to be coupled with the housing. A stator is installed in the housing, and a rotor is coupled with the lead screw to interact with the stator for rotating the lead screw.

Abstract: A rotor of motor for drum type washing machine comprises a stator formed of a field winding; a rotor disposed outside the stator to house the stator, and having a yoke surface on which a permanent magnet for performing a magnetic interaction with the field winding of the stator, the rotor rotating around the stator; a shaft bushing for connecting the rotor and the rotation shaft, which is installed on the bottom surface, wherein a plurality of the rotation groove portions whose width of one side is more narrowly formed than whose width of other side are formed at regular intervals on the bottom surface of the rotor, wherein fixed protrusion which is inserted the rotation groove portions and is fixed when moved along the rotation groove portions by rotation of the shaft bushing is protruded on the bottom surface of the shaft bushing.

Abstract: A drive motor is supported and fixed onto a motor support plate composing a support member through vibration proof rubber which damps vibration, the frequency of which is not less than 1 kHz. Due to the foregoing, it becomes difficult for the vibration generated from the drive motor itself, to be transmitted to the support member so that the generation of resonance noise can be prevented.

Abstract: The present invention provides a method for the horizontal stacking of laminations 10 and donuts to form a stator core. A stator generator frame 2 has multiple keybars 6 that run the axial length of the frame. The laminations 10 have grooves 12 there-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybars 6, these extensions 7 may be used as rails on which the laminations may be horizontally inserted into the stator frame.

Abstract: A resilient motor mounting system for use with electric motors including a resilient motor mount including at least two resilient vanes moveable between a collapsed position and an extended position, wherein each vane including a fixed end and a free end, wherein the fixed end rigidly attached to the motor, wherein each vane projecting radially away from the motor such that the free end for resiliently biased against a mounting surface thereby securely holding the motor in a desired stationary position. Each vane preferably defining a curved shape such that the radius of curvature is increased to urge the vane into the collapsed position and the radius of curvature is decreased as the vane is released into the extended position.

Abstract: A driving unit including a motor, a support bracket supporting the motor, at least one stud supporting a gear which is rotated with a driving force of the motor, and a heatproof member disposed between a frame fastening the support bracket and the stud, and an image forming apparatus applying the same.

Abstract: A BLDC motor includes a rotor having a permanent magnet attached to an inner circumferential surface thereof, a stator that forms a magnetic field to rotate the rotor and a bracket provided in a lower portion of the rotor to support the stator, where the bracket includes a strength reinforcement part. The BLDC motor has an improved structure which may enhance strength of the bracket. The BLDC motor may prevent moisture penetration.