Abstract: The thermal management system for in-slot cooling of electric motors includes separating structures, either in the form of a scaffolding structure or a monolithic winding structure which is placed in between the adjacent winding turns to physically separate the winding turns to define coolant fluid passages for circulation of a coolant fluid in direct contact with the lateral surfaces of the winding turns. The scaffolding and monolithic winding structures are made from an electrically insulating material and are filled with a dielectric fluid that serves both the coolant and the electrical insulator between the winding turns. An end-winding organizer may be positioned at two end regions of each stator tooth to provide a curved surface for the winding turns to be held in tension throughout the 180° winding end turns and is formed with grooves to define the passage for the coolant flow to ensure that the flowing coolant reaches the surface of the innermost winding turns.

Abstract: A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

Abstract: An electric-motor drive, more particularly a fan drive, is provided for a motor vehicle. The drive contains an electric motor which has a rotatably mounted rotor and a stator having a laminated core. The laminated core forms a stator yoke and stator teeth of the stator, the stator teeth are directed radially from the stator yoke, and a stator winding is supported on the stator teeth. An electrically conductive covering part is provided for influencing and/or screening electromagnetic interference fields produced during the electric-motor operation. The covering part has a sleeve-type lateral wall and a circular-ring-shaped cover surface, which protrudes radially inward from an end of the lateral wall. The lateral wall is placed onto an outer periphery of the stator yoke. The cover surface axially covers the stator winding at least partly, and the lateral wall has a number of venting openings.

Abstract: The present invention discloses a cylindrical impact linear motor and a manufacturing method therefor. A cylindrical impact linear motor includes a main housing and a vibrator assembly arranged in a central cavity. The main housing is provided with two anti-collision structures. The vibrator assembly includes two strong magnetic strips which are axially connected in series to each other and have poles with the same polarity adjacent to each other, and a magnetic isolation member arranged between the two strong magnetic strips. The cylindrical impact linear motor further includes an electromagnetic coil embedded in the main housing and located on an outer periphery of the vibrator assembly. The direction and magnitude of a current conducted by the electromagnetic coil are changed to form an axial movement of the vibrator assembly in proportion to the change of the current, thereby forming an impact frequency and an impact force in proportion.

Abstract: Aspects of the subject disclosure relate to an electric motor that includes a stator and a rotor. The stator includes a stator body having a plurality of stator coil slots and a plurality of stator coils disposed respectively within the plurality of stator coil slots, each stator coil slot arranged a radially inner side of the stator body facing the rotor. The stator also includes a substrate mechanically coupled to the stator body and configured to receive a fluid via a manifold and distribute the fluid through a cavity formed between the substrate and the stator body. Each stator coil slot includes an opening forming a channel that extends longitudinally across the stator body for distributing the fluid through the channel and thermally interact with the plurality of stator coils and the stator body. Accordingly, the temperature of the electric motor can be regulated.

Abstract: A stator includes: a stator core including teeth; pins including a working portion extending in an axial direction in a slot between the teeth; and bus bars electrically connected to the pins. In each slot, the working portions are disposed over stages in a radial direction. The pins include the two working portions disposed across the teeth, a first pin and a second pin each including a connection portion connecting the working portion in a circumferential direction, and a third pin connected to the bus bar. Each of the working portions of the second pin and the third pin is disposed in one of an outermost stage and an innermost stage of the slot. A number of teeth straddled by the second pin is smaller than a number of teeth straddled by the first pin.

Abstract: A stator is disclosed. The stator has a stator core that has stator poles protruding in a radial direction and a stator. The stator core has an axial groove formed on its outer surface along a longitudinal axis that is used to direct a cooling fluid from a first end of the stator core towards a second end of the stator core that is opposite the first end. Further, the stator core has an annulus groove formed on its outer surface, with the annulus groove in fluid communication with the axial groove. The annulus groove receives the cooling fluid from the axial groove, and is located between the first end and the second end of the stator core.

Abstract: The present disclosure relates to an axial flux motor comprising a stator assembly and a rotor assembly. The axial flux motor includes stator cores having enlarged end plates. The axial flux motor also includes a cooling jacket including fins that extend between electromagnets of the stator assembly. The axial flux motor rotor assembly also includes an air cooling arrangement to provide air cooling to the stator assembly.

Abstract: An electric drive provides transmission oil cooling. An oil circuit supplies the transmission with oil. A cooling circuit cools a supply device and/or an electric motor with a coolant. A heat exchanger portion is coupled on one side to the cooling circuit and on the other side to the oil circuit. The supply device is arranged in a supply housing region. The heat exchanger portion forms a wall portion of the supply housing region. An end cover closes the heat exchanger portion. The end cover has at least one functional region, wherein the functional region is designed as a counterpart cooling structure, as an oil sump region and/or as a pump interface for coupling an oil pump.

Abstract: A rotary electrical machine includes a housing which includes a flow passage portion in which a refrigerant flow passage through which a refrigerant flows is formed and which houses a rotor and a stator. The refrigerant flow passage includes a first flow passage of which a length from the inlet to the outlet in the circumferential direction is a predetermined length, and a second flow passage of which a length from the inlet to the outlet in the circumferential direction is shorter than that of the first flow passage. The second flow passage is provided with a partition wall portion between the inner peripheral wall and the outer peripheral wall in the radial direction. A slit penetrating the partition wall portion in the circumferential direction is formed in the partition wall portion. A width of the slit is smaller than a width of the first flow passage.

Abstract: An electric machine having a housing with a stator chamber, an axle supported by at least one bearing assembly so that the axle may rotate with respect to the housing, a stator assembly with a stator core and a plurality of wire windings around the stator core, a rotor assembly with a magnet assembly for generating a magnetic field in the stator assembly wherein a coolant is circulated through the stator chamber over the stator core and plurality of wire windings to remove heat, and a plurality of thermoelectric devices. The thermoelectric devices are located around the inner circumference of the housing so that the coolant is circulated over the plurality of thermoelectric devices. The plurality of thermoelectric use the Peltier effect to cool the coolant flowing through the stator chamber or generate an electrical current that can be used by the electric machine.

Abstract: A generator for a wind turbine has a rotor and a stator separated radially by an air gap, wherein the stator includes at least one stator segment, which includes a stack of lamination sheets and at least one stator winding, and a stator support structure supporting the at least one stator segment, wherein the generator further includes a cooling arrangement for providing cooling fluid at least to the air gap, wherein the cooling arrangement further includes a cooling fluid flow dividing element for dividing an incoming cooling fluid flow to the stator into a first partial cooling fluid flow directed to the air gap and a second partial cooling fluid flow directed to the stator support structure.

Abstract: A power coil for a magnetic field difference engine, provided according to the present utility model, comprises a second power shaft (15), a first power shaft (17), and a coil (14), wherein the second power shaft (15) and the first power shaft (17) are horizontally spaced apart from each other to be parallel to each other, and the coil (14) is wound along the longitudinal direction of the second power shaft (15) and the first power shaft (17) and connected at both ends to each other to form a circulating closed circuit.

Abstract: A rotor includes a rotor core having magnet-receiving holes formed therein, permanent magnets embedded respectively in the magnet-receiving holes of the rotor core, and an annular end magnet. The rotor is configured to generate both magnet torque by the permanent magnets and reluctance torque by outer core portions located on a radially outer side of the permanent magnets in the rotor core. The end magnet is provided at a position facing axial end faces of the outer core portions. Magnetic poles of the end magnet are arranged so as to respectively repel the outer core portions.

Abstract: The present invention provides a vibrating motor, an electronic device, and a control method. The vibrating motor includes a housing, a vibrator assembly and a solenoid assembly. The vibrator assembly includes a mass block defining an accommodating cavity and magnets accommodated in accommodating cavity. The mass block are elastically connected to the housing. The magnets are magnetized for providing driving forces in a first direction and a second direction. The first direction is perpendicular to the second direction. The vibrator assembly vibrates along the first direction at a first vibration frequency. The vibrator assembly vibrates along the second direction at a second vibration frequency, or the solenoid assembly vibrates along the second direction at a third vibration frequency. The vibrating motor provide vibration senses in different directions and provide large vibration senses for different application scenarios, which is conducive to realization of multiple vibration feedback.

Abstract: A rotor of a rotary electric machine includes a rotor core. The rotor core is a stacked body in which a plurality of electromagnetic steel sheets are stacked. The electromagnetic steel sheet includes an inner annular portion and an outer annular portion. A first insertion hole into which a rotating shaft is inserted is formed in the inner annular portion. A rotor inner diameter is defined as twice a distance from a center of the first insertion hole to an inner circumferential edge of the inner annular portion. A rotor outer diameter is defined as twice a distance from the center of the first insertion hole to an outer circumferential edge of the outer annular portion. A ratio of the rotor inner diameter to the rotor outer diameter is within a range of 1:1.5 to 1:3.5.

Abstract: An oscillating swing motor includes a first swing lever and a second swing lever that are pivotally connected to each other, where a coil fastening base for winding a coil is arranged below the first swing lever and the second swing lever, stators are arranged inside the coil fastening base, rotors are arranged on the top of the coil fastening base in a floating manner, two rotors are symmetrically arranged, one end of each of the first swing lever and the second swing lever facing the coil fastening base is driven by the rotor to perform magnetic induction alternating reciprocating motion, a linkage member is further arranged between the first swing lever and the second swing lever, and the linkage member enables either of the first swing lever and the second swing lever to drive the other swing lever to swing in an opposite direction when swinging.

Abstract: The present invention provides an electric power unit that is mounted on a mounting object, comprising a motor; and electrical equipment for driving the motor, wherein the motor has a first attachment portion that is attached to the mounting object, and a second attachment portion to which the electrical equipment is attached.

Abstract: A stator for an electric motor, encompassing a carrier component that extends along a virtual longitudinal axis defining an axial direction, the carrier component that is notionally passed through centrally by the virtual longitudinal axis including a carrier portion having an externally located surface; the externally located surface facing in a radial direction orthogonal to the longitudinal axis; the carrier portion including a metal framework overmolded by a thermoplastic carrier plastic, so that the metal framework is surrounded at least in portions by a plastic casing made of carrier plastic; the stator including a cover at at least one axial longitudinal end of the carrier portion; the cover encompassing a connecting configuration having cover plastic compatible with or identical to the carrier plastic; the plastic casing including a counterpart connecting configuration; the connecting configuration being welded to the counterpart connecting configuration.

Abstract: A vibrating motor includes a stationary portion, a movable element having a magnet member and capable of vibrating in a first direction, and an elastic member. The stationary portion has a coil that applies a driving force to the magnet member when the coil is energized, and a case that accommodates the movable element and the coil therein. The movable element has a holder member that holds one end portion in the first direction of the magnet member. The elastic member is connected to the holder member. The case has a case notch. The case notch is notched toward the other side in the first direction from one end in the first direction of the case. The holder member has a holder notch that is notched toward one side in a second direction perpendicular to the first direction. The case notch and the holder notch overlap as viewed in the second direction.