Abstract: A laminated core including a plurality of electrical steel sheets stacked on each other, and adhesion parts which are provided between the electrical steel sheets adjacent to each other in an axial direction thereof and adhering the electrical steel sheets to each other, in which each of the electrical steel sheets includes an annular core back part, and a plurality of tooth parts which extend from the core back part in a radial direction of the core back part and are disposed at intervals in a circumferential direction of the core back part, and each of the tooth parts of the electrical steel sheets has an adhesion region provided with the adhesion part having a belt shape extending in the circumferential direction.

Abstract: A motor comprises a housing having a cylindrical recess for receiving and centering a cylindrical wound stator. The stator has an overmolded electrical connection assembly with connecting tabs extending transversely. The stator, being equipped with the electrical connection assembly, is overmolded with an electrically insulating resin. The housing has a lateral protrusion for connecting with a complementary connection assembly. The housing has, in its rear portion, a first angular wedging means complementary to a second angular wedging means provided at the rear portion of the overmolded electrical connection assembly.

Abstract: The disclosure describes a motor comprising a rotor shaft comprising a cooling channel having at least one inlet for receiving cooling fluid, and at least one outlet section fluidly connected to the cooling channel at an outer side of the rotor shaft and arranged to allow cooling fluid to flow out of the cooling channel, wherein an outlet opening of the at least one outlet section is placed at a larger radial distance from the rotational axis than an internal cross sectional area of the cooling channel inside of the rotor shaft.

Abstract: A first layer, a second layer, and a third layer of a sleeve of a rotor are integrated side by side in this order from the radial center of the sleeve toward the outside. The first layer includes a first fiber-reinforced resin including a first carbon fiber extending in a direction inclined with respect to both the axis of the rotor shaft and a circumferential direction of the sleeve. The second layer includes a second fiber-reinforced resin including a second carbon fiber extending along the circumferential direction of the sleeve, the third layer includes a third fiber-reinforced resin including a third carbon fiber extending along the circumferential direction of the sleeve. An elastic modulus of the third layer is larger than an elastic modulus of the second layer.

Abstract: A rotor includes a rotary shaft and a rotor body supported by the rotary shaft. The rotor body includes a first permanent magnet and a second permanent magnet. The first permanent magnet has a first overhang part that is in contact with a first end part of the second permanent magnet in an axial direction of the rotary shaft, and the first overhang part and the first end part are joined to each other. A motor includes the rotor and a stator.

Abstract: The present invention may provide a motor including a stator, a shaft having a hollow and disposed inside the stator, and a magnet disposed on an outer circumferential surface of the shaft, wherein the shaft includes protrusions in contact with the magnet, and the protrusions include first faces protruding from the outer circumferential surface of the shaft and second faces concavely disposed in an inner circumferential surface of the shaft.

Abstract: An object of the invention is to increase productivity of a coil. A coil forming device according to the present invention includes: a first bending unit 200A that performs a compression bending process with respect to a linear conductor; and a second bending unit 200B that performs a draw bending process with respect to the linear conductor, wherein the first bending unit 200A and the second bending unit 200B are integrated in one device, and wherein the first bending unit 200A and the second bending unit 200B are switched to access one linear conductor so as to perform the compression bending process and the draw bending process onto the one linear conductor.

Abstract: A low-pressure aluminum casting mold and a low-pressure aluminum casting process for a motor rotor. The low-pressure aluminum casting mold includes an upper blade profile assembly, a lower blade profile assembly, a rotor core, a dummy shaft and a diverter. The upper blade profile assembly includes an upper backing plate and an upper mold, and the lower blade profile assembly includes a lower backing plate and a lower mold. The low-pressure aluminum casting mold further includes a first pressing device and four sets of second pressing devices. The low-pressure aluminum casting process includes the steps of cold lamination, heating of the rotor core, mold preparation, hot lamination, and low-pressure casting.

Abstract: A method for producing a stator assembly of an electric motor includes: providing a laminated core of the stator assembly; mounting at least one coil former on the laminated core; mounting a ground contact pin on the laminated core provided with the coil former; and overmolding the laminated core with plastic.

Abstract: An electric motor vehicle traction motor has a motor housing, a liquid-cooled motor stator and a dry running internal motor rotor which is separated fluidically from the motor stator. The motor stator is formed by a stator body with radial stator slots and a plurality of stator coils. The axial phase windings are arranged in the stator slots, and the winding heads of protrude axially out of the stator slots. A slot potted body is made from a potting material and by way of which the stator coil axial phase windings are potted into the stator slots in a fluid-tight manner. The stator coil winding heads are of potting-free configuration and protrude in each case directly into a fluid-tight cooling space. As a result of the omission of a separate split cage, a small air gap is realized and manufacturing costs are reduced.

Abstract: A water pump connecting structure for an oral irrigator, including: a pump body, a piston ring, a connecting rod assembly, and a driving assembly. The piston ring is arranged on the inner side wall of the pump body, the connecting rod assembly penetrates into the pump body and penetrates through the piston ring. The piston ring is in interference connection with the connecting rod assembly. The connecting rod assembly is connected to the driving assembly and makes reciprocating motion in the pump body through the driving of the driving assembly and the guidance of the piston ring. The connecting rod assembly and the piston ring are configured to cooperate with each other to draw liquid from a water inlet of the pump body and to pump the liquid out from a water outlet of the pump body, during reciprocating motion of the connecting rod assembly.

Abstract: A stator includes a split-core assembly that includes a split core, a bobbin, a coil, and a terminal holder. The terminal holder has an insulating protrusion, and when two split-core assemblies are coupled to each other, the insulating protrusion of any one terminal holder overlaps the other terminal holder.

Abstract: A stator of an electric compressor has a stator core configured by laminating a plurality of electromagnetic steel plates in an axial direction, the electromagnetic steel plates having a substantial ring shape as seen from the axial direction. As seen from the axial direction, a plurality of through-holes are formed through the stator core in the lamination direction of the electromagnetic steel plates, on the same circle centered around the axis line, and as seen from the axial direction, a first arc length or a second arc length longer than the first arc length is set as each arc length between through-holes adjacent in the circumferential direction. The stator is secured to a housing by a bolt inserted through the through-holes, the stator core is varnished at least in areas near the centers in the circumferential direction between through-holes where the second arc length is set.

Abstract: A rotor, motor and brushless motor are provided. This rotor (9) includes a rotor core (32), permanent magnets (33), and a protrusion (35) protruding radially outward between permanent magnets (33). The permanent magnets (33) has a parallel orientation in which the easy magnetization direction is parallel to the radial direction in the center of the permanent magnets (33). The circumferential side faces (33d) of the permanent magnets (33) contact the protrusion (35) in the circumferential direction. Connection surfaces (33e) of the permanent magnets (33) are connected to the circumferential side face (33d) and to the outer peripheral surface (33a) on the radial outer side. The front end (35t) of the protrusion (35) in the protrusion direction is arranged between the center (33g) of the circumferential side face (33d) in the protrusion direction and the crossing ridge portion (33h) where the circumferential side face (33d) and the connection surface (33e) cross.

Abstract: A rotary electric machine includes a rotor rotatable around an axis, a stator provided to surround the rotor and having a first side on one side, a connecting board, a bracket, connection pins electrically connected to the connecting board, a direct connection connector, and a main circuit connector. Stator windings are electrically connected the connecting board which is provided on the one side. The bracket has an opening and is provided on the one side to be connected to the stator so as to cover the connecting board and the first side of the stator. The direct connection connector is inserted into the opening such that the connection pins are inserted into the direct connection connector to be electrically connected to the direct connection connector. The main circuit connector is inserted into the opening and to be electrically connected to the direct connection connector.

Abstract: The present disclosure discloses a split type motor, including an air channel and an armature module, wherein the armature module includes a housing, a stator assembly, a rotor assembly, and a printed circuit board (PCB); the housing is cylindrical; the rotor assembly includes a rotating shaft, a magnetic ring, a first bearing, and a second bearing; the housing is provided with a first bearing chamber and a second bearing chamber; an elastic component is arranged between the first bearing and the magnetic ring; the air channel includes an inner ring and an outer ring concentrically arranged; the inner ring encloses and forms a circular through cavity matched with the housing; a ventilation cavity is formed between the inner ring and the outer ring; and several flow guide plates are arranged in the ventilation cavity.

Abstract: The invention provides a power tool, a motor and a rotor assembly of the motor. The rotor assembly includes a rotating shaft, and a rotor body, a limiting member and a cooling fan fixed on the rotating shaft, the limiting member and the cooling fan are respectively arranged at both axial ends of the rotor body, the rotor body includes a rotor core and magnets fixed in the rotor core, the limiting member and the cooling fan jointly limit an axial displacement and a radial displacement of the magnets.

Abstract: An axial flux motor includes: a stator having a first side and a second side opposite the first side, the stator including: N stator core components on the first side, where N is an integer greater than two; N stator windings that are disposed around the N stator core components, respectively, where each of the N stator windings includes, from a point of view facing the first side: a first width at a first location; and a second width that is greater than the first width at a second location that is radially outward from the first location relative to an axis; slot openings disposed between adjacent ones of the stator windings; and a rotor including a third side and M permanent magnets on the third side, where the first side is parallel to the third side, and where M is an integer greater than or equal to two.

Abstract: An axial flux motor for an appliance includes a stator yoke. A plurality of stator teeth extend from the stator yoke in an axial direction and are positioned about a central rotational axis. Each stator tooth includes a plurality of laminations that extend in the axial direction and form a “T” shaped member. The plurality of stator teeth are overmolded with a polymeric material to define a plurality of axial stator poles. At least one winding extends around the plurality of axial stator poles. A ring-shaped rotor rotates about the central rotational axis of the stator yoke. The rotor is positioned proximate an axial end of the plurality of axial stator poles.

Abstract: An electric motor (MC) is described comprising a rotor (100) rotatable about a rotation axis (X), a stator comprising a circular series of windings for creating a magnetic field through which to rotate the rotor; a support provided with a circular series of seats for housing the windings; an element (40, 50), mounted between a winding and a wall of the respective seat which houses it, configured to conduct heat from the winding towards the outside of the stator in order to dissipate the heat.

Abstract: A rotor for an electrical machine may include a rotor shaft, a hollow inner shaft, two end discs, and at least one outlet opening for discharging cooling medium. The rotor shaft may be configured as a hollow shaft having an inner lateral surface. The inner shaft may be arranged in the rotor shaft and may include at least one opening at least in one axial center for ejecting cooling medium onto the inner lateral surface of the rotor shaft to cool the inner lateral surface. The two end disks may delimit an interior of the rotor shaft in an axial direction. Each of the two end disks may include a central through opening through which the inner shaft is guided. The at least one outlet opening may be disposed in at least one of (i) each of the two end disks and (ii) a lateral surface of the rotor shaft.

Abstract: A door drive for arrangement on or in connection with a door system, whereby at least one leaf element of the door system is movable. The door drive includes a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft can be brought into operative connection in a driving manner with the leaf element. The rotor includes a support body, on which receiving fields are formed, on which permanent magnets are adhered.

Abstract: The present invention may provide a motor including a stator including coils, a rotor disposed inside the stator, and a busbar disposed above the stator, wherein the stator includes a first unit stator core and a second unit stator core, the coils include a first unit coil and a second unit coil, the busbar includes a body and a plurality of terminals connected to the coils of the stator, the plurality of terminals include first terminals and second terminals, the first unit coil is wound around the first unit stator core, the second unit coil is wound around the second unit stator core, one end of the first unit coil and one end of the second unit coil are connected to the first terminals, and the other end of the first unit coil and the other end of the second unit coil are connected to the second terminals.

Abstract: A stator sub-assembly with a connector includes a stator sub-assembly including a stator core and a rigid wiring board, and a connector fixed to a connector mounting part of the rigid wiring board in such a way that it is opposed to the stator core in the radial direction of the frame. A groove part that extends in the axial direction from an opening in the axial direction and accommodates the connector and the connector mounting part is formed in an inner peripheral surface of the frame. A window part for an opponent connector to mate with the connector accommodated in the groove part is formed in the frame. The window part opens in an outer surface of the frame and an inner surface of the groove part, and has an unbroken inner peripheral surface.

Abstract: The objective of the present disclosure is to obtain an electric rotating machine apparatus the heat-radiation performance of control circuit boards are secured, and communication between the control circuits and connection thereof with the sensor are realized with a small size and at a low price. A first terminal group and a second terminal group connect a first control circuit board on which a first control circuit for controlling a current in the winding of a first system is mounted, a second control circuit board that faces the first control circuit board with respect to the axis line of an output axle and on which a second control circuit for controlling a current in the winding of a second system is mounted, and a sensor circuit board that faces the axle end of the output axle and on which the sensor and a communication line are mounted.

Abstract: An electric machine is disclosed that includes a stator with a winding having a plurality of conductors associated with one or more phases and interconnected with one another. The ends of at least part of the conductors protrudes from the winding, wherein one part of said ends is connected to an interconnecting ring placed axially on the winding and a further part of said ends is connected to a current connection arranged radially outside the winding via connecting conductors. The connecting conductors are fixed to at least one holding element provided on the interconnecting ring.

Abstract: A stator contains a stator assembly having a number of stator teeth, which are provided with coils of a multi-phase stator winding, and a contact device for interconnecting axially orientated coil ends of the coils with a number of phase connections. The contact device has an interconnection ring fitted on the stator assembly on the end side and has integrated bus bars for interconnecting the coils with the phase connections. The contact device has a ring cover fitted on the interconnection ring. The interconnection ring has a number of axial through-openings corresponding to the number of coils ends, through which the coils ends are guided. The bus bars have contact tabs at the ends of the bar, which are arranged in a region of the through-openings, and on which a respective coil end is contacted. The ring cover covers the coil ends and contact tabs.

Abstract: A rotor for an electric machine includes a rotor body formed from a plurality of stacked laminations defining a first axial end and an opposing second axial end. Each of the plurality of stacked laminations includes a plurality of openings that are aligned so as to define a plurality of passages through the rotor body. A plurality of reinforcement elements extend through the plurality of stacked laminations. Each of the plurality of reinforcement elements is arranged in a corresponding one of the plurality of passages and includes a first end portion and a second end portion. The first end portion and the second end portion of select ones of the plurality of reinforcement elements extend outwardly of the first axial end and the second axial end.

Abstract: Inserts disposed in a housing of a pneumatically or hydraulically powered tool having a motor adapted to rotate a drive lug in either of first and second rotational directions. The insert is composed of a material resistive to creep and/or stress relaxation. The insert contacts fasteners applying a clamping force to the tool and remove the housing from the load path of the clamping force, thereby reducing the possibility of fluid leaks.

Abstract: The present application provides a brushless motor and an electrical equipment. The brushless motor includes: a casing, a stator, and a rotor. The stator includes a stator core and a winding. The rotor includes a rotor core and a shaft. Two bearings are sleeved on the shaft at positions corresponding to two ends of the rotor core, respectively. The two bearing brackets are installed at two ends of the casing. The brushless motor further includes a conductive sheet, configured for adjusting a capacitive reactance between the stator core and each of the two bearing brackets. The conductive sheet is attached to an outer circumferential surface of the casing. The conductive sheet and the stator core each at least partially has an area aligned to each other in a radial direction of the casing.

Abstract: A rotor assembly for an electric machine includes a rotor core that is fabricated from a plurality of laminations stacked along a rotational axis of the electric machine. The rotor core has a plurality of arcuately arranged, axially extending magnet-receiving slots. The rotor core includes a plurality of magnets received in respective ones of the magnet-receiving slots. Each of the laminations includes opposed deflectable magnet-retaining prongs that extend into a corresponding one of the magnet-receiving slots. The magnet-retaining prongs are deflected by and engage the magnets to exert a reactive force against the magnets and hold them in place. Each of the laminations also includes respective support posts axially adjacent the magnet-retaining prongs. The support posts extend alongside and thereby limit the deflection of the magnet-retaining prongs when engaged with the corresponding one of the magnets.

Abstract: The disclosure provides a motor and a method for assembling the motor. The motor includes: a bus bar including a first portion of the bus bar and a second portion of the bus bar, the first portion of the bus bar and the second portion of the bus bar are defined separately; a first support component having a first support surface supporting the first abutting portion of the first portion of the bus bar toward the first direction; and a second support component having a second support surface supporting the second abutting portion of the second portion of the bus bar toward the first direction. The first portion of the bus bar further includes a first connecting portion, and the second portion of the bus bar further includes a second connecting portion. A distance between the first connecting portion and the second connecting portion is variable in the first direction.

Abstract: A motor includes a rotor, a stator, and a bus bar unit disposed on one side in an axial direction of the stator. The stator includes conductor connection bodies and a segment coil. Each connection body includes first and second ends in the axial direction. The bus bar unit includes a neutral point bus bar connected to the first end and phase bus bars connected to the second end. The neutral point bus bar extends along a circumferential direction. The phase bus bar includes a main body extending along the circumferential direction and at least partially overlapping the neutral point bus bar and a connection portion extending from the main body to one side in the axial direction. The first end passes through one side in the axial direction of the neutral point bus bar and is connected to the connection portion.

Abstract: According to an embodiment of the disclosure, a motor assembly may include a stator including a coil; a rotor accommodated inside the stator and configured to rotate; first and second housings coupled to first and second sides of the stator; an impeller disposed in a first direction of the first housing and configured to rotate together with the rotor by being coupled to one side of the rotor; a cover having an opening through which air is introduced by rotation of the impeller, and configured to protect the impeller; and a heat dissipation member surrounding at least a portion of an outer surface of the stator and configured to reduce heat generated in the motor assembly as the rotor rotates. Therefore, it is possible to minimize vibration caused by the rotation of the motor, thereby reduce noise, and lower heat generated inside the motor. Other various embodiments are possible.

Abstract: In a method for encapsulating a winding overhang of a stator which includes a laminated core with windings inserted in grooves of the laminated core such that winding ends protrude from the grooves to form a winding overhang at a distance from a laminated core end and run in a region between the laminated core end and the winding overhang so as to form intermediate spaces between the winding ends, at least one of the intermediate spaces is spanned by a polymer layer such as to prevent a flow of encapsulating compound through the at least one spanned intermediate space, and the winding overhang is encapsulated with the encapsulating compound after placing the stator in a housing of an electric machine.

Abstract: An armature includes a multiphase stator winding assembly that includes multiphase stator windings. Each of the multiphase stator windings includes a plurality of winding segments. Each of the winding segments includes a conductor. The conductor of each of the winding segments of each of the multi-phase windings is wound along an armature core while being engaged with a corresponding at least one of first protrusions and a corresponding at least one of second protrusions, and extending along one of radially inner and outer peripheral surfaces of the armature core. The first protrusions extend axially from a first end plate of the armature core, and the second protrusions extend axially from a second end plate of the armature core.

Abstract: A waterproof fan includes: a rotor including a rotating blade capable of rotating about a rotation axis; a stator including a plurality of stator cores extending in a radial direction relative to the rotation axis, and a winding wound around each of the stator cores; a frame including a housing space opening toward one side of the rotation axis; a circuit board electrically connected to the winding and housed in the housing space; a waterproofing resin portion covering the stator and the circuit board to block the opening of the housing space; and a positioning member provided in the housing space and configured to position the circuit board at a position away from an inner wall of the housing space.

Abstract: A terminal assembly includes: a body part; and a first bus bar and a second bus bar, each of which is at least partially inserted into the body part. A first end section of two opposing end sections of the first bus bar with respect to a radial direction (R) of the body part is inserted into the body part. A second end section of two opposing end sections of the second bus bar with respect to the radial direction (R) of the body part is inserted into the body part. A direction in which the first end section extends intersects with a direction in which the second end section extends.

Abstract: A motor according to an embodiment includes a stator. The stator includes a plurality of connection cores. The connection core includes a plurality of pieces connected via connection portions. The plurality of pieces are arranged in a circular arc shape. The plurality of connection cores are arranged in an annular shape.

Abstract: A breathing assistance apparatus has a pressurised gases source featuring a lightweight impeller with a plastic shaft. The impeller is shroudless. The plastic shaft is supported within the stator by a bearing structure. A resilient motor mount couples the stator and the housing and provide compliance and/or damping for the motor.

Abstract: A rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post that defines an end turn, and a coil support assembly including a coil support disc rotatably coupled to the rotatable shaft and comprising a radially inner portion and a radially outer portion coupled via a set of spokes. The radially outer portion overlies an end turn and defines a set of channels therethrough sized and disposed to receive a flow of fluid from the set of rotor windings.

Abstract: A method for producing a stator includes: providing a main body, the main body having: a cavity for accommodating a rotor, and a plurality of slots, extending axially through the main body, the plurality of slots accommodating electrical conductors of a winding, providing slot insulation so as to ensure that a slot interior of each slot of the plurality of slots is electrically insulated from the main body and is fluidtight; and forming a respective end plate on each of two ends of the main body, the end plates being attached in a fluidtight manner to the main body so as to ensure that no fluid can get between the end plate and the main body and reach the cavity of the main body. Each end plate has a radial part and an axial part, and the axial part has an insert.

Abstract: An apparatus comprising a coupling member. The coupling member can be disposed between a first portion of a busbar connectable to a first component of a drive unit assembly and a second portion of the busbar connectable to a second component of the drive unit assembly. The coupling member can couple the first portion of the busbar with the second portion of the busbar. The coupling member can include a first segment, a second segment, and a third segment. The first segment can be parallel to the third segment and the first segment can be perpendicular to the second segment.

Abstract: An electric motor suitable for use in a laundry machine comprises an improved stator and/or rotor design.

Abstract: A turbomachine includes a housing with an e-machine housing. Also, the turbomachine includes a rotating group supported for rotation within the housing. Moreover, the turbomachine includes an e-machine that is configured as at least one of an electric motor and an electric generator, that is operatively coupled to the rotating group, and that includes a stator that is housed within the e-machine housing. Furthermore, the turbomachine includes a thermal bridge member that extends between the stator and the e-machine housing to define a thermal path for heat to transfer from the stator to the e-machine housing. The e-machine housing includes a thermal bridge retainer member that defines an outer boundary of the thermal bridge member.

Abstract: A motor includes a rotor, a stator, a circuit board attached to the stator, a heat dissipation member disposed on a side of the circuit board opposite to the stator, and a resin portion covering the stator, the circuit board, and at least a part of the heat dissipation member.

Abstract: Devices, systems, and methods to air-cool a portable generator are disclosed. The devices include various air ducts to direct airflow over heated components within a cabinet of the portable generator to cool the components by convection. A damping fan draws ambient temperature air into the cabinet and directs the air into channels of an outflow duct.

Abstract: A motor assembly includes a stator having a stator core, stator windings, and a routing insulator configured to electrically insulate the stator core from the stator windings; a rotor rotatably received within the stator; and a bearing bridge received at least partially within the routing insulator and including a main body forming a center pocket arranged to support a bearing of the rotor shaft. A circuit board is provided including a circuit board, and an overmold structure forming an annular body on a surface of the circuit board arranged to mate with the main body of the bearing bridge to substantially seal the center pocket from ingress of debris particles.

Abstract: A first portion of an insulator is provided on a first region of an end surface of a tooth. A second portion of the insulator is provided on a second region of the end surface of the tooth so as to be separated from the first portion in a circumferential direction. A third portion of the insulator is connected to fourth side ends of the first portion and the second portion in a radial direction. A coil includes a crossing portion in a coil end. A stator includes an insert body in a housing space. The insert is made of a material having a higher thermal conductivity than a material forming the insulator.

Abstract: The present invention discloses a motor comprising: a stator part; and a rotor assembly rotatably disposed with respect to the stator part, wherein the rotor assembly comprises: a ring magnet including an insertion hole with a shaft disposed therein and a plurality of first grooves formed at one side thereof along a first imaginary circle; and a core member including a body portion disposed between the shaft and the insertion hole, and an extension portion covering the plurality of first grooves, wherein the extension portion comprises a plurality of second grooves deviated from a plurality of first imaginary straight lines which pass from a center of the first imaginary circle respectively through the plurality of first grooves.