Abstract: An electric motor is provided that includes: a stator assembly; a rotor assembly for rotating inside the stator assembly, the rotor assembly including a shaft; a magnet mounted on the shaft of the rotor assembly; a printed circuit board; a magnetic sensor mounted on the printed circuit board; and an overmold assembly having a membrane disposed between the magnet and the magnetic sensor such that the magnetic sensor can sense the angular position of the magnet through the membrane.

Abstract: A device for driving a compressor of a gaseous fluid, in particular an electric motor. The device comprises a rotor and a stator which are disposed extending along a common longitudinal axis. A carrier element is disposed in contact on a first end side, oriented in an axial direction, of the stator, which carrier element is developed as a coherent unit and integral component with at least one receiving element for a connector for receiving at least one plug connector. In the axial direction the carrier element is in contact with a cylindrical wall on an insulation element fixedly connected with the stator and comprises an axially oriented annular surface.

Abstract: In one example embodiment, a magnetic shutter antenna is provided including at least one dipole magnet comprising a first end and a second end and at least one shutter of magnetically soft material comprising at least one opening and disposed proximate the first end of the at least one dipole magnet. The antenna further includes a motor coupled to the shutter and configured to move the shutter between a first closed position comprising the magnetic material being positioned adjacent the first end of the dipole magnet and a second open configuration comprising the opening being positioned adjacent the first end of the dipole magnet. Alternation between the first closed position and the second open position modulates a magnetic flux emitting from the first end of the at least one dipole magnet.

Abstract: A brushless direct current motor, a stator part and its winding method are provided. The stator part includes a stator core and stator windings wound around stator poles. The stator poles and the stator windings are arranged in a one-to-one correspondence with each other. The stator windings are formed by winding a single conductive wire uninterruptedly on the stator poles. Two ends of the conductive wire are connected.

Abstract: A motor comprising a frame and one or a plurality of magnets disposed inside the frame, wherein a gap extending in a circumferential direction is provided between an inner peripheral surface of the frame and an outer peripheral surface of the magnet, and the magnet and the frame arranged at both sides of the gap are coupled together in a rotational shaft direction by means of an adhesive.

Abstract: A bus bar unit includes a bus bar holder, a bus bar extending in a direction perpendicular to an axial direction and fixed to the bus bar holder, and an external connection terminal connected to the bus bar and extending to one side in the axial direction from the bus bar. The external connection terminal has a plate shape. The external connection terminal includes a first plate portion extending toward one side in the axial direction and a second plate portion that is positioned on a base end side of the first plate portion, is provided with a connection portion connected to the bus bar, and faces a direction different from the first plate portion. The first plate portion and the second plate portion are connected to each other in a bending line extending in the axial direction, and the second plate portion extends from one surface side to the other surface side of the first plate portion when viewed in the axial direction.

Abstract: The rotor of the electric motor includes a rotor magnet. The rotor magnet includes a yoke, and a resin magnet part formed of a resin material containing rare-earth magnetic powder, which is disposed outside the yoke. Multiple pedestals and multiple connecting portions are formed on an end surface of the yoke. The connecting portion joins together the adjacent pedestals. The connecting portions are disposed in a middle position of the end surface in the radial direction. The connecting portions each have a height less than the height of the pedestals. The present invention gains advantage in that the amount of rare-earth magnetic powder used in the rotor magnet can be reduced.

Abstract: The motor has a stator unit covered with a resin. The stator unit has a stator core, a coil, a circuit board, and an insulator. The insulator has a cylindrical portion and a circumferential-direction positioning portion. Below the stator core, the cylindrical portion surrounds a central axis. The circumferential-direction positioning portion protrudes outwards in a radial direction from an outer circumferential surface of the cylindrical portion. At least a part of the circuit board and the circumferential-direction positioning portion are opposed to each other in a circumferential direction. In addition, a lower end of the circumferential-direction positioning portion is positioned above a lower end of the cylindrical portion.

Abstract: A reciprocating saw includes an outer housing defining a longitudinal axis, a casing positioned within the outer housing, an upstream opening between the outer housing and the casing, a downstream opening, and an egress path extending between the upstream opening and the downstream opening. The egress path includes an upstream portion that extends along the longitudinal axis, a downstream portion that extends in a direction transverse to the longitudinal axis, and a redirecting surface positioned between the upstream portion and the downstream portion.

Abstract: A motor includes a stator unit and a rotor rotatable relative to the stator unit. The stator unit includes a stator, a resin portion, a support portion, and an annular recess. The stator includes a stator core, an insulator, and a conducting wire wound around the stator core with the insulator interposed therebetween. The resin portion covers at least part of the stator. The support portion supports the stator. At an end portion of the stator unit on one side in an axial direction, the recess is recessed toward another side in the axial direction. The resin portion is positioned further in a radially outer direction than the recess. The rotor includes an annular projection extending toward the other side in the axial direction. At least part of the projection is accommodated in the recess.

Abstract: A busbar unit for a stator of an electric motor may include a busbar holder at least a portion of which is made of an electrically insulating material and is to be positioned on an axial side of a stator, the busbar holder including a stator surface that is intended to face an axial side of a stator when the busbar holder is positioned on the axial side of the stator as intended, and at least one busbar mounted on the busbar holder. The at least one busbar may include a power source connection terminal to be electrically connected to a power source, and at least one coil connection terminal to be electrically connected to a coil of the stator and protruding beyond the stator surface of the busbar holder.

Abstract: A motor includes a heat sink including an inner region, and an outer region located radially outward from the inner region. An axial thickness of the inner region is larger than an axial thickness of the outer region, the bottom surface of the outer region is located axially above the bottom surface of the inner region, and the inner region and the electronic component at least partially overlap in an axial direction. A bus bar holder is located axially below the outer region and overlaps the inner region in a radial direction.

Abstract: A stator or rotor for an electric machine such as a motor or generator comprising: at least one ring formed of a plurality of pole segments, wherein each pole segment comprises an arcuate base and at least one magnetisable pole extending radially from the arcuate base; and at least one end cap comprising, or consisting essentially of a non-conductive material.

Abstract: Systems, methods and motor-generators with preform windings and a molded core are described. The preform windings include a first end, a second end, and a plurality of in-slot portions extending from the first end to the second end. The molded core includes a plurality of slots. Each of the plurality of slots including a respective in-slot portion disposed therein. Each of the plurality of slots includes a wall conforming to an outer profile of the respective in-slot portion.

Abstract: A motor shaft includes a main body and a chamfered end formed at an end of the main body. The chamfered end has a chamfer formed at a peripheral surface thereof, and a groove defined in an end surface thereof. An axial length of the chamfer is greater than a depth of the groove in the axial direction of the motor shaft. An electric motor including the motor shaft is also provided.

Abstract: In a rotating electric machine, a rectifier includes a positive electrode side member including a positive electrode side rectification element connected to a power supply side, and a positive electrode side heat sink to which the rectification element is fixed. The positive electrode side heat sink is disposed to face a non-positive electrode side member having a potential difference with respect to the positive electrode side heat sink with a gap therebetween. An insulating cover provided to cover the rectifier has a wall portion extending in a direction in which the positive electrode side heat sink and the non-positive electrode side member are arranged. The wall portion functions as an easily deformable portion that, when the insulating cover is deformed by an external force, contacts with the non-positive electrode side member and enters the gap between the positive electrode side heat sink and the non-positive electrode side member.

Abstract: The present invention provides A motor comprising a housing; a stator disposed inside the housing; a rotor disposed inside the stator; a shaft coupled to the rotor; and a teeth support part come in contact with the teeth of the stator, wherein the teeth support part includes a guide is disposed between the teeth adjacent to each other, wherein a width of the guide in the circumferential direction corresponding to the length between the end surfaces of the adjacent teeth, wherein an outer upper surface of the guide and inner bottom surfaces of the adjacent teeth form a shape of an arc.

Abstract: Disclose herein is a motor. The motor includes a stator assembly that has a stator core, an upper insulator covering and insulating an upper portion of the stator core, and a lower insulator covering and insulating a lower portion of the stator core, and a bus-bar assembly that has a bus-bar having a plurality of connecting terminals formed on a circular bus and a contact portion electrically connected to a coil, and a bus-bar housing accommodating the bus-bar therein. The contact portion has a bent portion formed by bending distal ends of the connecting terminals upward, a contact piece located to face the bent portion, and a connection piece which connects the bent portion with the contact piece, and the bus-bar housing is coupled to a bus-bar seat defined in a central portion of the upper insulator.

Abstract: A method of fabricating a stator for an electric motor is provided. The method includes providing a plurality of stator laminations. Each stator lamination of the plurality of stator laminations is a copy of the same stator lamination pattern. The method further includes stacking the plurality of stator laminations in a sequence along an axis, comprising periodically varying rotational orientations of the stator laminations in the sequence. The method further includes joining the plurality of stator laminations as stacked in the sequence.

Abstract: A rotor for a rotating electric machine includes: a rotor core having magnet holes; magnets inserted in the magnet holes of the rotor core. Each of the magnets includes two first surfaces respectively facing outward and inward of the rotor radial direction, and two second surfaces respectively facing one side and the other side of the rotor circumferential direction. Both ends in the rotor axial direction of at least one first surface of the two first surfaces are covered with electric insulating films, and a lateral surface region between both ends of the one first surface that are covered with the electric insulating films, and the two second surfaces are covered with no electric insulating films.

Abstract: The present invention relates to a stator system for an electric motor with an internal rotor. The stator system includes a stator winding and a metal external return path radially enclosing the stator winding. The external return path is surrounded by a retaining structure that holds the stator system together. The retaining structure can be injected to the external return path with plastic in the form of a cage, so that the external return path is not covered by the retaining structure in some regions but is exposed.

Abstract: Drive arrangement (1) comprising an electrical machine (2) having at least one winding (3) which has at least one winding end (4), and comprising a control unit (5), wherein the control unit (5) has a housing (6) with at least one contact-making receiving opening (7), wherein the electrical machine (2) and the control unit (5) can be mechanically connected, and wherein at least one winding end (4) of the winding (3) of the electrical machine (2) can be guided into the contact-making receiving opening (7) and can be clamped in the contact-making receiving opening (7) by means of a displaceable sliding part (5) and/or a deformable bending part (9), so that electrical contact can be established between the electrical machine (2) and the control unit (5).

Abstract: An electronically commutated electric motor is disclosed with a stator, a rotor rotatably mounted relative to the stator, and at least one sensor for scanning a magnetic field that co-rotates with the rotor, where the stator includes a stator winding and a magnetically soft stator core, where the rotor includes several permanent magnets arranged distributed in the circumferential direction of the rotor as well as a first magnetically soft rotor core for the permanent magnets, and where the permanent magnets, together with the first magnetically soft rotor core, generate a rotor magnetic field which, for operating the electric motor, interacts with the stator magnetic field of the stator generated by the stator winding and the stator core. A second magnetically soft rotor core adjoins the first magnetically soft rotor core in the axial direction of the rotor.

Abstract: A motor may include a rotor including a shaft; a stator; and a bearing supporting the shaft. The rotor may include a plurality of core pieces on an outer side of the shaft, a plurality of permanent magnets, a mold resin part between the core pieces, and an interposed part in contact with a surface on one side in a circumferential direction of each of the core pieces. The neighboring core pieces may include a magnet insertion hole provided therebetween. The permanent magnet may include two poles, with poles of neighboring magnets facing each other having identical polarity. Each of the permanent magnets is in indirect contact with the core piece positioned on the other side in the circumferential direction of the magnet insertion hole via the interposed part.

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

Abstract: A motor rotor includes: a shaft; a smaller-radius iron core fixedly attached to an outer peripheral surface of the shaft; a larger-radius iron core disposed spaced apart from the smaller-radius iron core in a radial direction perpendicular to an axis of the shaft, which is formed in a ring shape in cross section by a combination of a plurality of iron core blocks, and disposed to share a common axis with the smaller-radius iron core; and an insulating resin portion used to fix the smaller-radius iron core and the larger-radius iron core. The larger-radius iron core and the smaller-radius iron core are formed of their respective different materials. The material forming the larger-radius iron core has an iron loss less than an iron loss of the material forming the smaller-radius iron core.

Abstract: Provided is a propeller for a submersible, comprising a housing (1) having a cylindrical structure with two open ends, a stator sleeve (2) having a cylindrical structure with one open end, the stator sleeve suspended in an internal cavity of the housing (1), a motor stator (3) fixed inside the stator sleeve (2), a rotor sleeve (4) having a cylindrical structure with one open end and disposed on the stator sleeve (2), a motor rotor (5) fixed to an inner wall of the rotor sleeve (4), and a propeller (6) fixed to an outer wall of the rotor sleeve (4). The propeller (6) of the underwater propeller is directly fixed to the rotor sleeve (4) so that the structure of the motor is compact, and the rotational shaft transmission is not required so that the length of the propeller is shortened and the volume is reduced.

Abstract: A vehicle electric machine assembly including a stator core and a terminal block is provided. The stator core includes one or more three-phase terminals connected to end windings. The terminal block includes a connector for each of the three-phase terminals. A portion of the end windings extending from the stator core, the three-phase terminals, and the terminal block are overmolded as a single unit such that a portion of each of the connectors is exposed for connection to an inverter. The terminal block may further include one or more threaded apertures, each sized to receive a threaded stud to facilitate an electrical connection between one of the one or more three-phase terminals and the inverter. Each of the one or more three-phase terminals may extend axially along an axis substantially parallel to a central axis of a rotor disposed within a cavity defined by the stator core.

Abstract: The purpose of the invention is to provide a motor in which it is possible to efficiently construct a structure wherein a terminal part of a motor body is covered by a terminal cover. This terminal cover (7) is a resin molded article integrally including a first member (8) fixed to a motor body (40), a second member (9) that covers the first member (8), and a hinge part (70). Thus, the first member (8) and the second member (9) can be engaged with one another by first fixing the first member (8) to the motor body (40), and then rotating the second member (9) at the hinge part (70) and covering the first member (8) with the second member (9). Thus, the number of components can be reduced compared to cases where the first member (8) and the second member (9) are constructed as separate members, and the task of attaching the second member (9) to the first member (8) can be performed efficiently.

Abstract: A rotor in a rotating electric machine including a rotor main body and at least one magnet unit provided at an outer circumferential part of the rotor main body. The magnet unit has a plurality of magnet teeth as segments in the circumferential direction. The plurality of magnet teeth that form one magnet unit are arranged in a circular arc shape. At least one pair of magnet teeth in one magnet unit is each provided with a notch. With the plurality of magnet teeth being arranged in the circular arc shape, a fixation block is press-fitted in the pair of notches. The fixation block is fastened to the rotor main body while being inserted in the notches.

Abstract: A protection arrangement of an electric machine which includes a plurality of solid elements layered one after another between a terminal box and a stator of the electric machine. Each of the solid elements includes a cable hole, and the cable holes are arranged to at least partially overlap with each other in order to have a cable channel of the successive cable holes through the solid elements. At least a part of the solid elements are adjustable in a radial direction of the cable channel for making a diameter of the cable channel equal to or smaller than a diameter of the electric cable input in the cable channel in response to adjustment in the radial direction. The protection arrangement comprises a locking mechanism which immobilizes the at least part of solid elements.

Abstract: A rotor includes a rotor core that is formed by stacking a plurality of steel plates each of which has an opening; a magnet that is inserted in a magnet hole formed by disposing the openings such that the openings overlap each other; and a magnetic plate that is disposed between an inner wall defining the magnet hole and the magnet so as to prevent contact between the inner wall defining the magnet hole and the magnet. At least a contact portion of the magnetic plate is subjected to an insulating process, the contact portion of the magnetic plate contacting the magnet.

Abstract: An electric drive device has a motor housing accommodating an electric motor, a heat radiation base body fixed to an end surface, which is opposite side to an output shaft portion of a motor rotation shaft, of the motor housing and extending in a rotation shaft direction that is opposite side to output shaft portion, one electronic control unit of redundant system, arranged along direction in which heat radiation base body extends and having board, fixed to the heat radiation base body with thermal conduction to heat the radiation base body allowed, and the other electronic control unit of redundant system, arranged along direction in which the heat radiation base body extends and having a board, fixed to the heat radiation base body with thermal conduction to heat radiation base body allowed. Boards of both electronic control units are fixed to the heat radiation base body with boards slanting with respect to an extension direction of the heat radiation base body.

Abstract: A heat radiation base body extending in a direction of a rotation shaft of an electric motor close to the rotation shaft is provided at an end surface of a motor housing accommodating the electric motor. A board of one electronic control unit of a redundant system is fixed to the heat radiation base body along the direction in which heat radiation base body extends with thermal conduction allowed. A board of the other electronic control unit of redundant system is fixed to the heat radiation base body along a direction in which the heat radiation base body extends, so as to face the board of one electronic control unit, with thermal conduction allowed. A cover covering these is fixed to an end surface of the motor housing without a bolt. Thus, a housing accommodating the electronic control unit is not necessary. A sealing part is only the connecting portion between the motor housing and cover, thereby eliminating additional structure of the sealing part, sealing component required for seal and bolt.

Abstract: A laundry treatment apparatus and a magnetic gear apparatus are disclosed. The laundry treatment apparatus includes a cabinet (100) defining the appearance of the laundry treatment apparatus, a drum (300) rotatably disposed in the cabinet (100) to contain laundry, and a power unit (600) for rotating the drum (300), wherein the power unit (600) includes a rotating magnetic field generator (680) securely provided in the cabinet (100) to generate rotating magnetic fields, an input magnetic gear part (670) rotatably disposed radially outside the rotating magnetic field generator (680) and including at least one permanent magnet to transfer rotating magnetic fields, a magnetic path formation part (640) disposed radially outside the input magnetic gear, and an output magnetic gear part (620) disposed radially outside the magnetic path formation part (640) and including at least one permanent magnet therein.

Abstract: A bus bar unit includes: a plurality of bus bars which electrically connect coils of respective phases of a rotating electric machine and an external power source to each other, and integrally form external connection terminals; and a bus bar integral holding portion which covers parts of the plurality of bus bars and electrically insulates the plurality of bus bars to each other. Each bus bars is equal in thickness from the external connection terminal to a bus bar joining portion joined to a coil joining portion of each phase, and a width of the bus bar joining portion is wider than that of the coil joining portion.

Abstract: Provided is a motor in which the positional misalignment of a terminal cover provided to a motor body can be suppressed. In a terminal cover (7) fixed to a motor body (40), an engagement plate part (75) extends from a cover part (71), which covers a terminal part (25) on a lateral surface of the motor body (40), to a position overlapping an end surface (12) on a counter-output side (L2) of the motor body (40). The engagement plate part (75) is provided with an engagement recess (750) in which a projection (17) on the end surface (12) on the counter-output side (L2) of the motor body (40) is fitted. Thus, even when external force is applied to the terminal cover (7), the terminal cover (7) is less likely to be subjected to positional misalignment. The engagement recess (750) is groove shaped, and the projection (17) is fitted to an end part, in the extending direction, of the engagement recess (750) formed in a groove shape.

Abstract: An active part of an electrical machine, such as a rotor or a stator, an electrical machine having the active part, which has a main body and a winding that is surrounded by an encapsulation compound, where the encapsulation compound has at least three regions, where the winding extends through the main body in a slot in a first region, where the winding surrounded by the encapsulation compound projects out of the main body at least in a third region, and which has at least a second region arranged between the first region and the third region in the active part, where the encapsulation compound has a different composition in the second region than in the first region or the third region.

Abstract: A rotor includes permanent magnets, an annular outer periphery side iron core (first core) disposed on the inner diameter side of the permanent magnets, an annular inner periphery side iron core (second core) disposed on the inner diameter side of the first core, and an insulating member insulating the first core and the second core from each other. The first core includes positioning convex portions protruding from the outer periphery toward the outer diameter side, formed in the circumferential direction and positioning the permanent magnets, and outer periphery side rotation locking concave portions being concave from the inner periphery toward the outer diameter side and formed in the circumferential direction. The positioning convex portions and the outer periphery side rotation locking concave portions are formed in positions overlapping each other when viewed in the radial direction from the central axis of the second core.

Abstract: A stator unit included in a motor includes a base member, an armature, a circuit board, and a mold resin portion. The base member extends substantially perpendicularly to a vertically extending center axis. The armature and the circuit board are positioned above the base member. The circuit board is electrically connected to the armature. The mold resin portion covers the armature and the circuit board. In a process of forming the mold resin portion, the base member is firstly supported by a first mold.

Abstract: The present invention relates to a rotor assembly for an electric motor, including: a rotor; a rotary shaft passing through the center of the rotor and coupled to the rotor; and a fastening member fastened to at least one side of the rotary shaft to prevent the rotor from being moved along the rotary shaft, wherein the fastening member includes a body portion having at least a part brought into contact with the rotary shaft; and a flange portion connected to the body portion, part of the flange portion being pressed against the rotor side to prevent the axial movement of the rotor.

Abstract: A stator coil has a first layer wound around a tooth portion of a stator core-sequentially from the radially outer side to the radially inner side of a stator, and is wound while a winding direction is reversed for each layer. If the outermost layer is denoted by n (n is an odd number equal to or greater than 3) and the final turn in each layer is denoted by m (m is equal to or greater than 2), the m-th turn in the n-th layer is wound on the radially outer side of the stator, the stator coil on the radially inner side is lane-changed on a shorter-side tooth portion, and a part of the stator coil on the radially outer side in the outermost layer is lane-changed on a longer-side tooth portion.

Abstract: To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.

Abstract: An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.

Abstract: A power tool is provided including a housing and an electric brushless DC (BLDG) motor housed inside the housing. The motor includes a stator, a rotor pivotably arranged inside the stator, and a motor end cap arranged at an end of the stator. At least one of the motor end cap or the stator includes flexible posts that engage a surface of the other one of the motor end cap or the stator to absorb tolerances associated with the stator and the end cap.

Abstract: A motor includes a stator, a rotor that rotates relatively to the stator, a circuit board, and a holding member that holds the stator and the circuit board. The stator includes a stator core including a core back and teeth, an insulator covering a portion of the stator core, a coil with a coil wire wound around the teeth with the insulator in between, and a coil end portion being an end portion of the coil wire. The circuit board has a second through hole. The holding member has a first through hole disposed on a lower side of the second through hole. The coil end portion passes through the first and second through holes and is electrically connected to the circuit board. A lower portion of the holding member is connected to an upper portion of the insulator, and an upper portion thereof is connected to the circuit board.

Abstract: A method for manufacturing a stator assembly for an electrical machine includes printing a stator core. The method also includes printing a first part of a stator winding. In addition, the method includes coupling the first part of the stator winding to the stator core. The method also includes printing a second part of the stator winding onto the first part of the stator winding to form the stator assembly. In particular, coupling the first part of the stator winding to the stator core precedes printing the second part of the stator winding onto the first part of the stator winding.

Abstract: A stator housing has an annular wall including a first end, a second end, an outer surface and an inner surface defining an interior cavity. A stator is arranged within the interior cavity. The stator includes an outer surface portion, a first end turn and a second end turn. A coolant annulus extends about at least a portion of the stator housing. The coolant annulus includes at least one coolant spray passage arranged to direct a spray of coolant at one of the first end turn and the second end turn. A coolant seal and distributor is coupled to the stator housing at the first end sealing against the stator. The coolant seal and distributor includes one or more coolant spray nozzles arranged to direct a spray of coolant onto the other of the first end turn and the second end turn.

Abstract: A brushless motor comprising: a rotor; a stator core disposed at a radial direction outside of the rotor, and a stator case. The stator core includes an outer ring shaped section, teeth sections projecting out from the outer ring shaped section toward a radial direction inside, and an inner ring shaped section extending from end portions of the teeth sections. Protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section. The stator case is integrated together with the stator core by a plurality of plastic deformation portions formed at an outer peripheral portion of the stator case at locations facing towards the protruding portions, and the plastic deformation portions are disposed at even intervals along a circumferential direction of the stator case.

Abstract: An inner-rotor-type motor is configured such that a projecting portion is formed on an inner circumferential surface of a housing, a recess portion is formed on an outer circumferential surface of a stator, the stator is positioned with respect to the housing by the recess portion and the projecting portion being fitted to each other, the stator is configured by an annular insulator having an attachment surface being brought into close contact with a core end surface at one axial end of a stator core, a sensor substrate is attached to the insulator so as to be capable of detecting a rotation angle of a rotor, the recess portion of the stator is configured by a cutout portion being formed in an area that is a part of an outer circumferential surface of the insulator and includes a portion that is brought into close contact with the core end surface.