Abstract: An alternator according to the present invention includes: a shaft; a rotor that is fixed to the shaft; a stator that has a stator core that is disposed so as to surround an outer circumference of the rotor and in which a plurality of slots that extend axially are formed so as to be spaced apart circumferentially; and a front bracket and a rear bracket that hold circumferential edge portions of the stator core from two axial ends using a plurality of holding means and that envelope the stator core, a pair of first stays that are formed on the front bracket being fixed to a vehicle by bolts that penetrate through a pair of penetrating apertures that are respectively formed on the first stays, and the pair of penetrating apertures are formed at positions such that an approximate perpendicular bisector of a straight line that connects centers of the penetrating apertures intersects an axis of the shaft; and one of the holding means is disposed on the perpendicular bisector near the shaft.

Abstract: Provided is a spindle motor having an electrostatic discharge (ESD) path that can stably discharge electric charges introduced from the outside to a rotating shaft through a base plate, in a structure of forming a bearing housing by using a resin and insert-molding the base plate. The spindle motor includes: a rotor to the central portion of which one end of a rotating shaft is coupled; a bearing that rotatably supports the rotating shaft; a bearing housing that accommodates the bearing in the inside of a groove and that is made of a resin; and a base plate whose inner circumferential portion is buried and combined in the inside of the bearing housing, wherein part of the base plate is in contact with the bearing to thus discharge externally introduced static electricity through the rotating shaft, bearing, and the base plate.

Abstract: A motor's stator unit includes a base and a stator. The base has a shaft tube. The stator has a silicon steel plate unit, an insulation sleeve unit and a coil unit. The silicon steel plate unit has an inner circumferential wall forming a through-hole. The insulation sleeve unit has an engagement hole. The silicon steel plate unit and the insulation sleeve unit are stacked together. An enameled copper wire is wound around the insulation sleeve unit to form the coil unit. The engagement hole has a minimal diameter that is slightly smaller than an outer diameter of the shaft tube. The stator is press fit around the shaft tube via the insulation sleeve unit, to prevent the silicon steel plate unit of the stator from excessively compressing the shaft tube.

Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments, a stator coil mounted on the stator core, and an outer cylinder that is fitted on the radially outer surfaces of the stator core segments so as to fasten the stator core segments together. The stator core has a recess formed in the radially outer surface of one of the stator core segments. The outer cylinder has a slit that radially penetrates the outer cylinder to connect the radially outer and inner surfaces of the outer cylinder and an engaging portion that adjoins the slit. The engaging portion of the outer cylinder is plastically deformed radially inward into the recess of the stator core so as to abut and thereby engage with side walls of the recess which face the engaging portion.

Abstract: A hanger assembly includes a first bracket having a first side surface, a second side surface, and a locating pin extending from the second side surface. The assembly includes a mounting bracket configured to nest with the first bracket, where the mounting bracket has a base portion, and an extension portion extending generally perpendicularly from the base portion. The extension portion has a first side surface, a second side surface, and a top surface. A mounting bolt extends from the second side surface of the mounting bracket, through the mounting bracket, and through the first bracket to the first side surface of the first bracket. The first surface and/or the top surface of the extension portion are configured to receive the locating pin.

Abstract: A motor for an electric power steering device, includes: a housing side bearing which is placed on the output side of a shaft of a rotor placed in a frame, and is supported by a housing connected to the frame; and a frame side bearing which is placed on the opposite output side of the shaft of the rotor, and is composed of an outer ring and an inner ring supported by the frame.

Abstract: Certain exemplary aspects of the present disclosure are directed towards an apparatus in which a base deck and a base deck cover interface with one another to provide a permeability path. The base deck includes an outer region, and the base deck cover includes a lip that interfaces with the outer region of the base deck to provide the permeability path. The permeability is further defined by at least three interleaved sidewalls of the base deck and base deck cover that define two segments of the permeability path. The permeability path is filled with a polymer material that creates a seal between the base deck and base deck cover.

Abstract: A bearing support plate for use in a generator has a radially enlarged flange with a first cylindrical portion extending from the flange in one direction which will provide a bearing support for an outer race of a ball bearing, and a radially inner cylindrical portion extending in an opposed direction that will be away from the ball bearing relative to the flange. The flange is generally cylindrical but has a truncated portion over a circumferential extent. The first cylindrical portion is formed with radially enlarged portions with intermediate radially thinner portions. The flange includes bolt holes circumferentially aligned with the radially thinner portions.

Abstract: An electric motor or generator is provided. The motor or generator includes a rotor component rotatable about an axis, a stator, and a support assembly supporting the rotor component and the stator. The support assembly includes a shaft component rotatable about an axis and a bearing arrangement rotatably supporting the rotor component on the shaft component. The bearing arrangement includes a one-way bearing configured such that a first one of the components transmits torque to a second one of the components when the first component rotates in a first direction and the second component does not rotate in the first direction relative to the first component.

Abstract: A motor or generator assembly including a motor or generator machine and mounting structure supporting the machine on an appliance is provided. The machine presents an axially extending, radially outermost circumferential face and a pair of axially spaced apart, radially projecting axial margins. The mounting structure includes a pair of at least substantially radially extending plates and a base configured for connection to the appliance. The plates extend at least in part adjacent respective ones of the axial margins and at least in part define a machine-receiving space therebetween. The machine is mounted on the brackets so as to be positioned at least in part in the machine-receiving space. The base is positioned at least substantially radially outside the circumferential face of the machine and presents a pair of axially spaced apart side faces, with each of the plates being secured against a respective one of the side faces.

Abstract: A bearing assembly for an electric motor is provided that includes a bearing having an inner race and an outer race, and a bearing float sleeve having an outer race engaging member. The outer race engaging member includes an outer surface sized for slip fit engagement with a bearing seat formed in a motor end member such that the bearing float sleeve can be displaced axially in relation to the bearing seat and an inner surface configured for engagement with the bearing outer race such that the bearing outer race is in a fixed rotational position with respect to the bearing float sleeve. The bearing float sleeve includes at least one feature operational to maintain a fixed rotational position of the bearing float sleeve with respect to the motor end member.

Abstract: The invention relates to an electronically commutated electric machine (1), comprising a stator housing (3) which receives a stator (4) in a stator chamber (13) and which delimits a rotor chamber (14) receiving a rotor. According to the invention, the stator housing (3) comprises a main housing (31) and a cover (9), wherein an elastic sealing element (8) is arranged between the main housing (31) and cover (9) and extends into the inside of the stator housing (3) with at least one radial region (30) and forms a tolerance compensating element (19) acting on the stator (4).

Abstract: A motor includes a bearing holder having a substantially cylindrical shape and a surrounding member fixed to a radial outer surface of the bearing holder. The bearing holder includes a plurality of holder protrusion portions each including a radial outer surface at least partially making contact with the surrounding member and a plurality of holder recess portions positioned radially inward of the plurality of holder protrusion portions. The plurality of holder protrusion portions and the plurality of holder recess portions are alternately arranged along a circumferential direction. A central angle of a portion of an inner circumferential surface of the surrounding member remaining out of contact with each of the plurality of holder protrusion portions is equal to or larger than a central angle of a portion of an outer circumferential surface of a bearing unit.

Abstract: In an arrangement in an electrical machine, the electrical machine includes a rotor rotating around its shaft, a stator located from the rotor at an air gap, and a frame around the outer surface of the stator. A stator opening is formed in the end of the frame, and the stator opening is closeable with a cast end shield. The end shield includes at least three brackets protruding from the outer edge of the end shield. The brackets are fittable onto the end junctions where axially continuing structures are connected to the end at the junctions.

Abstract: This disclosure provides an aircraft vehicle, which comprises a circuit board, and at least one power component mounted on said circuit board. The at least one power component comprises a rotor, a drive unit and a fixing sleeve. Said drive unit is electrically connected to said circuit board and drives the rotor to rotate. Said fixing sleeve comprises a receiving space with an opening at a top. Said fixing sleeve comprises at least one first stopping piece and at least one second stopping piece projected on an outer surface of the fixing sleeve. Said drive unit is accommodated in the receiving space and is secured in the fixing sleeve. Said circuit board comprises at least one positioning hole corresponding to the power component. The fixing sleeve is configured to pass through the positioning hole so that the circuit board is retained between the first stopping piece and the second stopping piece. This disclosure also provides a fixing sleeve.

Abstract: Disclosed herein is a stator assembly for a motor including: a stator core which includes a rounded base having a plurality of first holes formed in the vertical direction and a plurality of teeth radially formed on the outer circumferential surface of the base; an insulation coating layer formed on the entire surface of the stator core except the inner face of the base and the periphery of the first hole; and one or more connection parts connected to the rounded base.

Abstract: An electric motor configured to maximize active motive material within a given motor size by having one or more phase lead exit holes configured to prevent unwanted outside contaminants from entering the motor, phase leads each having an integral strain relief, and two or more Wye terminations that are not electrically connected to each other.

Abstract: A mounting feature plate rigidly mounts a mounting feature to a stator of an electrical motor in proximity to an end shield to help maintain a predetermined air gap between a rotor and a stator in the electrical motor. The mounting feature plate includes a planar member, an offset member extending from the planar member that has a mounting feature configured to mount an electrical motor within an appliance, and a pair of flanges extending from the planar member. Each of the flanges has an opening with a cylindrical extrusion aligned with and extending from the opening. The extrusions are configured to be received within a mounting hole within a stator to enable a bolt to pass through the opening and the extrusion and be received within the mounting hole in the stator.

Abstract: The permanent magnet type electrical rotating machine has an overhung rotor support structure in which a shaft of a rotor is supported at only one end side thereof by a bearing provided on one side of a casing of the electrical rotating machine. Another end side of the rotor shaft to be a bearing support-free side is capable of being joined to an end of a shaft of a prime mover via a flange formed at an end of the shaft. The rotor shaft is configured such that, upon a state of not being coupled to the prime mover shaft, the flange on the bearing support-free side is joined to an end face of the casing through a retaining member to be prevented from moving in any of an axial, radial and circumferential directions of the rotor shaft.

Abstract: A motor assembly for a fan for a radiator of a motor vehicle, has an electric motor with a stator and an outer rotor driving an impeller. A support connected to the stator has a plurality of arms for fixing to a carrier structure. A casing includes a basin-like container and a heat dissipater forming a cover for the container. The casing contains a circuit board carrying components of a control circuit connected to the motor. The container has retention attachments engaged in a snap-fitting manner in snap seats provided in the arms of the support in order to bring about relative prepositioning of the container with respect to the support before the heat dissipater is fixed to the support.

Abstract: An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub, and a pair of covers fixed to axial ends of the rotor core segments. The hub and covers are formed on the rotor core segments by inserting molding and one of the covers has openings to allow the magnets to be inserted into spaces formed between adjacent rotor core segments such that the rotor core segments and magnets are alternately arranged in a circumferential direction of the rotor.

Abstract: The present disclosure provides a supporting and heat dissipating structure. A driver is arranged on an inner surface of a heat sink. The heat sink has protrusions for heat dissipation. An axle hole and a fixing ring are formed at the center of the heat sink. An elastic ring is arranged around the fixing ring for connecting with a supporting frame. A tubular barrel is used for connecting the heat sink to a motor. A structure for easily and firmly supporting the motor and the driver can be obtained. The structure can also absorb vibration while the motor rotating.

Abstract: A motor assembly includes a structural unit for mounting a motor, for mounting and enclosing electronic circuitry, and for providing a corridor for air to flow and cool the motor and/or the electronic circuitry. The motor assembly includes a substantially water-resistant motor that rotationally drives a fan for cooling the motor and/or rotationally drives a propeller for providing propulsion to watercraft. The electronic circuitry of the motor assembly receives and transmits instructions to a command post by way of electronic signals and distributes power to the motor. The structural unit seals the circuitry from the surrounding environment.

Abstract: An apparatus includes a hub. The apparatus also includes a back iron that is coupled to the hub. In addition, a magnetic annulus is co-formed to the back iron.

Abstract: A motor mounting assembly for mounting a motor includes a motor base and a motor mounting fixture. The motor base has an elongate slot and a threaded adjusting rod. The motor mounting fixture cooperates with the slot for securing the motor to the base and includes a fixture body and a coupling member. The fixture body includes a fixture base and first and second oppositely disposed legs. First and second apertures extend through the first and second legs and a motor fastener projects proximally from the fixture base to be received in the slot. The coupling member has a through bore aligned with the first and second apertures between the first and second legs. At least one of the first aperture, the second aperture, or the bore includes screw threads engaging the adjusting rod for adjusting a position of the motor.

Abstract: An apparatus includes a first component and a second component. The second component is located at a first position. The second component includes a first connection to the first component. The first position and the first connection are configured to stiffen an electric motor assembly.

Abstract: A rigid mechanical self-centering assembly for a component mounted relative to an opening. Variable radii cylindrical components are accommodated by virtue of variable-length, rigid, structural stays, and flexible mounts with curved faces for flush abuttal to said component, such as a motor or pump. A high efficiency assembly for electrical components is achieved by use of nonferrous materials.

Abstract: Disclosed herein are a motor usable with a washing machine to assure interchangeability of constituent elements thereof and a washing machine having the same. The motor includes a stator mounted to a tub of the washing machine, and a rotor to rotate a drum of the washing machine. The stator includes a stator core, first and second insulators arranged to cover the stator core, and a plurality of mounts to couple the stator to the tub. The plurality of mounts is selectively provided at one of the first insulator and the second insulator.

Abstract: A component positioning structure for components received in a motor's shaft tube includes a base and a stator unit. The base has a shaft tube, and shaft tube has an opening end having a deformable portion. The stator unit is fitted to an outer circumferential wall of the shaft tube and has a pressing portion. The pressing portion abuts against the deformable portion and causes deformation of the deformable portion, allowing the deformable portion to reduce an inner diameter of the opening end.

Abstract: A motor includes a cover made of a resin material. The cover includes a first annular portion arranged to extend in an annular shape above coils, a side wall portion arranged to extend downward from an outer circumferential portion of the first annular portion, and a second annular portion arranged to extend radially outward or radially inward from a lower end portion of the side wall portion along an upper surface of a circuit board. The side wall portion is arranged to extend in an axial direction while filling in gaps between teeth on a radially inner side of radially outer end surfaces of the teeth. The coils are covered by the cover to be protected from dust, water droplets, etc. The radially outer end surfaces of the teeth are exposed from the cover, and are thus arranged to be in radial proximity to a rotor magnet.

Abstract: In some aspects, the present disclosure provides a magnetic rack comprising a lateral movement structure and/or a longitudinal movement structure. In particular embodiments, the lateral movement structure and/or longitudinal movement structure move one or more magnets to or away from a reaction tube, in order to control the magnetic forces exerted on microbeads in the reaction tube. The microbeads are attracted onto the reaction tube wall, thereby facilitating separation of the microbeads from a solution in the tube. In particular embodiments, the magnetic rack is used to extract or purify nucleic acid from a sample.

Abstract: A disk motor and an electric power tool in which positioning of a coil disk with respect to a commutator disk can be carried out while reliably ensuring insulating properties are provided. A disk motor having: an output shaft part; a coil disk that is provided with a coil pattern and provided coaxially to the output shaft part; a commutator disk that is provided with a commutator pattern and provided coaxially to the output shaft part; and a positioning pin that is electrically insulated from the coil disk and the commutator disk, is engaged with the output shaft part and the coil disk, and carries out positioning of the coil disk with respect to the output shaft part, and an electric power tool having the disk motor are provided.

Abstract: A motor includes a rotary shaft and a motor housing internally housing the rotary shaft. The motor housing is provided with a mounting hole in a position corresponding to an end of the rotary shaft. A detection rotor is fixed to the end of the rotary shaft. A detection stator includes a detection part made of resin into a plate-like shape having a surface on which a planar coil is placed, an outer peripheral wall axially extending from an outer circumferential edge of the detection part, and a flange radially extending from the outer peripheral wall. The detection stator is placed so that a surface of the detection part faces the detection rotor and the surface of the detection part faces to the inside of the motor housing in the mounting hole, and fixed to outside of the motor housing with a screw to the flange.

Abstract: Embodiments of the invention are related generally to electromagnetic machines and, more particularly, to a suspension system and related methods for the attachment of the stator core of an electromagnetic machine to a surrounding frame or enclosure. In one embodiment, the invention provides a system for supporting a stator core of an electromagnetic machine, the system comprising: a rigid frame structure including: an upper portion; and a lower portion beneath the upper portion; a first plurality of wire rope members, each having a first end and a second end; and a first plurality of attachment devices for affixing at least one of the first end or the second end of each of the first plurality of wire rope members to the upper portion.

Abstract: Provided is a BLDC motor for a hair dryer, which includes high strength plastic parts integrated through injection molding. Thus, the number of parts is decreased to thereby decrease manufacturing costs and the weight of the BLDC motor. Furthermore, a sirocco fan installed in the BLDC motor is directly coupled to an outer circumferential surface of a rotor housing so as to optimize an assembling structure of the sirocco fan, thereby stabilizing the rotation thereof. Accordingly, vibration and noise due to rotation can be reduced, and an amount of introduced air can be maximized.

Abstract: An electric machine for installation to a retaining device includes a stator having an axis, and a torque-support device for supporting the stator against the retaining device to prevent a turning movement around the axis. The torque-support device has an intermediate element, at least two holding support elements for providing support against the retaining device, and at least two stator support elements for providing support against the stator. The holding support elements and the stator support elements possess each a greater rigidity in a circumferential direction in relation to the axis than in any other spatial direction.

Abstract: An arrangement structure includes: a motor including: a motor main body including a stator and a rotor, the rotor being disposed to be rotatable relative to the stator; a case member configured to store the motor main body; and a connecting conductor configured to electrically connect an inside conductor disposed inside the case member and an outside conductor disposed outside the case member; and a support device fixed to the case member and a frame member of a vehicle, the support device being configured to support the motor on the frame member, wherein the connecting conductor is arranged directly below a fixing portion where the support device is fixed to the case member.

Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.

Abstract: The invention relates to an electrical machine, particularly an alternating current generator, that can be designed as a three-phase alternator, for example, having—preferably electrical—components that are protected from access, wherein to this end there is a protective cap (47) fastened by means of at least one snap region (103), wherein the snap region (103) has a snap-in hook (92) having a snap-in hook root (106), wherein there is a bending region (109) between the snap-in hook (92) and the snap-in hook root (106), wherein the bending region (109) has a cambered surface (112, 115).

Abstract: [Object] An object of the present invention is to provide a substrate support structure which can prevent a crush rib from damaging components other than a substrate and brings excellent workability. [Means to solve] In a substrate support structure, a box-shaped resinous case 2 provided with a holding space section 23 is separated into a first case 21 and a second case 22, and a substrate 3 is housed in the holding space section 23. A first crush rib 41 and a second crush rib 42 are provided in the second case 22, and press and fix the substrate 3 to first case 21 by reaction force that is generated by being pressed against the substrate 3 and crushed when the both cases 21, 22 are joined together. A first guide 51 is provided in the first case 21, and guides the first crush rib 41 to the substrate 3 mounted in the first case 21 when the both cases 21, 22 are joined together.

Abstract: A motor is provided for use in a machine. The motor includes a frame having a catch and a mounting ring retained on the frame by the catch. The motor is supported in the machine by the mounting ring.

Abstract: A mounting arrangement for locating a stator (10) within a casing (16) of a rotating machine comprises at least one mounting plate (12) adapted to engage with the stator (10) and the casing (16). The mounting plate (12) has a series of discrete apertures (20) therein. The apertures (20) extend through the plate (12) and are arranged in an array to provide a convoluted path which impedes the transmission of the dynamic forces through the plate (12) and into the casing (16). The apertures (20) render the plate (12) more resilient to the dynamic forces that the stator (10) experiences in operation. Each aperture (20) divides the plate (12) into portions which provide anisotropic stiffness in the radial and tangential directions.

Abstract: An electric steering wheel lock device including a lock bar which moves between a lock position, at which the lock bar prohibits rotation of a steering shaft, and an unlock position, at which the lock bar permits rotation of the steering shaft. An electric motor generates drive force for moving the lock bar. A motor holding member for holding the electric motor includes a motor fastening portion having two contact portions, which face toward each other, to clamp a casing of the electric motor.

Abstract: The invention reduces vibration in a plastic element used in an electrical drive. The plastic element has a baseplate, at least two commutator brush boxes leading to a shaft passage channel which passes through the baseplate, and a bearing seat which is connected to the baseplate via at least one supporting arm for holding a shaft bearing. The invention provides for the entire contact area of the supporting arm with the baseplate to be arranged at a lateral distance from the commutator brush boxes.

Abstract: Alternating current electric induction motor, in particular a motor (12-22) which is fed by a frequency variator, comprising a casing (4) which supports a rotor (9) by means of roller bearings (8) and which supports a stator (13) with a coaxial ring-shaped core (16) made of a magnetic material, characterized in that the stator (13) is provided with an auxiliary closed loop toroidal winding (20).

Abstract: There is disclosed an electric power tool in which magnetic saturation seldom occurs in a tooth of a stator without increasing the size of a motor. The electric power tool includes a motor having a stator with a plurality of teeth formed circumferentially at equal intervals and axially extending groove-like slots between each tooth, with winding wires being wound around each tooth by use of the slots, and having a tubular rotor coaxially surrounding the stator with a permanent magnet of a plurality of poles on an inner peripheral surface facing distal end surfaces of the teeth of the stator. Further, the ratio of the number of poles of the permanent magnet of the rotor to the number of slots of the stator is set to be 4 to 3.

Abstract: The invention relates to a rotor that exhibits a rotor shaft, by which a rotor axis is defined, and also a core stack that is arranged around the rotor shaft along a longitudinal portion of the rotor axis. Along the longitudinal portion the rotor shaft exhibits a first surface region, the shape of which describes a circular cylinder, and also a second surface region which is constituted by structural elements that with respect to the rotor axis rise radially outwardly above the first surface region. For the purpose of producing the rotor, the core stack can be pushed over the rotor shaft and in the process can be pushed against the structural elements) in such a manner that it is deformed and by this means a positive connection between the rotor shaft and the core stack is generated. In this way, in particularly simple manner in terms of production engineering a reliable and torsion-proof connection between the core stack and the rotor shaft can be formed.

Abstract: An axial groove is provided in an inner peripheral wall surface of a motor case of a housing of a motor actuator, and a spring installation opening is provided to the axial groove at a location adjacent to an opening end of a motor receiving hole of the motor case, which receives a motor. A damper spring is inserted into the groove through the spring installation opening. The damper spring urges the motor against first and second ridges formed in the inner peripheral wall surface of the motor case.

Abstract: A method for installing a rotor of an electrical machine is disclosed. The method comprises using axially directed guide bars (107-109) for keeping the rotor (102) centered with respect to a bore of a stator (101) during the installation of the rotor. The rotor has sliding surfaces so that it can be slid in the axial direction to its final position along the guide bars. The mechanical support structure (104) that supports bearings (105, 106) of the rotor are provided with supporting surfaces for being able to give mechanical support to the guide bars. The mechanical support structure (104) may comprise for example threaded holes to which threaded ends of the guide bars can be tightened. After the rotor has been moved to its final position and it is supported by the bearings, the guide bars are removed.

Abstract: A ceiling fan includes an outer rotor motor having a rotor connected to a rotating disc and a stator connected with an inner tube. An outer tube is fitted around the inner tube, having one end connected with the rotating disc, and a plurality of elastic buffer pieces are positioned between the outer tube and the rotating disc. By so designing, when the rotor is rotated to actuate the rotating disc together with the outer tube to rotate, the elastic buffer pieces can absorb the vibration produced by operation of the outer rotor motor and also correct bias swinging of the outer tube through their elastic deformation to enable the outer tube to be rotated stably.