Abstract: A first bracket in an electric motor includes an inflow path through which outside air flows inside, and an outflow path through which the air having flowed in flows outside. A stator core included in the electric motor includes a first ventilation path that is coupled with the inflow path and a second ventilation path that is coupled with the outflow path. A second bracket includes a third ventilation path that forms a flow path from the first ventilation path to the second ventilation path positioned symmetrically to the first ventilation path with respect to a plane containing a rotation axis. The air having flowed into the inside of the electric motor through the inflow path passes, in order, through the first ventilation path, the third ventilation path, and the second ventilation path, and flows out to the outside of the electric motor through the outflow path.

Abstract: A rotor for a motor is proposed, the rotor including: a magnet coupled to a shaft to surround an outer surface of the shaft and having opposite-polar magnetic portions circumferentially alternately arranged; a first fixed ring fixed to the shaft to surround an outer surface of the shaft, disposed in contact with an upper portion of the magnet, and having a first coupling portion at a lower end being in contact with a top of the magnet to prevent rotation relative to the magnet; and a second fixed ring fixed to the shaft to surround the outer surface of the shaft, disposed in contact with a lower portion of the magnet, and having a second coupling portion at an upper end being in contact with a bottom of the magnet to prevent rotation relative to the magnet.

Abstract: An electric motor includes: a permanent magnet; a rotor including a first rotor core having a first electrical steel sheet and a second rotor core having a second electrical steel sheet; and a stator including a stator core. The first electrical steel sheet is located outside the stator core. A relationship among a minimum width BL1 of a first left bridge, a thickness tL1 of the first left bridge, a minimum width BR1 of a first right bridge, a thickness tR1 of the first right bridge, a minimum width BL2 of a second left bridge, a thickness tL2 of the second left bridge, a minimum width BR2 of a second right bridge, and a thickness tR2 of the second right bridge satisfies (BL1×tL1+BR1×tR1)>(BL2×tL2+BR2×tR2).

Abstract: A three-axis voice coil motor including a base, a spherical bearing, a magnetic component, an X-coil group, a Y-coil group, and at least one Z-coil group is provided. The base has a supporting pole. The spherical bearing is rotatably sleeved around the supporting pole. The magnetic component is securely sleeved around the spherical bearing and the magnetic component rotates along with the spherical bearing. The X-coil group is disposed around the magnetic component along an X-axial direction passing through the spherical bearing, and the X-coil group has first gaps. The Y-coil group is disposed around the magnetic component along a Y-axial direction passing through the spherical bearing, and the Y-coil group has second gaps. The Z-coil group is disposed around the magnetic component along a Z-axial direction passing through the spherical bearing.

Abstract: An interconnection device for a rotary electric machine provides an electrical connection between a stator and an electronic power-supply and control module. The interconnection device includes an insulating body, connecting members, and a connection terminal. The stator includes coils. The connecting members are arranged on an outer side of the insulating body, and each connecting member includes a body, a connection tongue, and a combined connecting member. The combined connecting member includes a linking lug which electronically connects the coil of the stator to the electronic power-supply and control module. The connection terminal is fixed to the linking lug, and the linking lug is sized to pass through the insulating body, with a free end of the linking lug and a free end of the connection terminal extending from an inner side of the insulating body.

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 refers to a liftable brush holder system (9) able to operate as fixed, comprising a motor (1) that drives a speed reducer (2) that drives a shaft (3) that moves a disc with eccentric slot (4), wherein the disk with eccentric slot (4) closes the short-circuit bushing (6) and independently moves the sides (9r, 9l) of the brush holder (9). The present invention further refers to a rotating electric machine equipped with a system according to the invention.

Abstract: The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the stator includes a stator core, a first insulator disposed on the stator core, and a coil disposed on the first insulator, the first insulator includes a body on which the coil is disposed, a guide extending from one side of the body and including an opening, and a holder extending from one portion of the guide and including a groove, and one portion of the coil is disposed in the opening of the guide and the groove of the holder.

Abstract: An electric compressor motor includes a stator ring having a plurality of stator winding slots and a plurality of stator windings. Each of said stator windings is received in a stator winding slot of the plurality of stator winding slots. The stator ring also includes a plurality of cooling slots. Each cooling slot in the plurality of coolant slots is defined along an axial length of at least one corresponding stator winding slot of the plurality of stator winding slots such that a shared opening between each stator winding slot and at least one corresponding coolant slot is defined. The cooling slots are configured to allow coolant to directly contact at least one stator winding in the corresponding at least one stator winding slot.

Abstract: A high current and RPM-capable slip ring assembly for use in a selected application for transferring electricity between an exterior environment and an interior environment that includes a non-rotating electrical power member with concentric electrically conducting power transmission bands with wiring and a rotating electrical power member with concentric electrically conducting power transmission bands with wiring and a housing that surrounds both the non-rotating electrical power member and rotating electrical power member to align the first set of concentric electrically conducting power transmission bands and the second set of concentric electrically conducting power transmission bands to slide on one another during rotationally operation of the slip ring assembly.

Abstract: An electrical filtering system including capacitors and an electrical distribution device including a stack of two electrically conducting layers facing one another and separated by an insulating layer, the stack being mounted on a rigid insulating plate, and said capacitors being mounted on said distribution device, the rigid plate extending in a plane orthogonal to the direction in which the layers are stacked. The distribution device includes a plurality of electrical connections distributed angularly over the outer perimeter of the distribution device and protruding in a plane parallel to the plane in which the rigid plate extends, and extending from the outer perimeter of the distribution device, each of the connections being, on the one hand, connected to at least one capacitor and, on the other hand, intended to be connected to an arm of an electrical inverter mounted on a tubular electrical converter of an electronic control unit.

Abstract: A motor assembly includes a rotor and a sensor arrangement. The sensor arrangement has a sensor and a target. The target is applied to a surface of the rotor and the sensor is mounted on a bearing shield of the motor opposite the target.

Abstract: A triboelectric generator comprises a first body moveable relative to a second body. Power generation modules are disposed on the first body and one or more actuating elements are disposed on the second body. Each power generation module is electrically connected to a common output and comprises material capable of generating electrical power through the triboelectric effect when contacting another surface. The power generation modules and one or more actuating elements are arranged on the bodies such that relative movement of the bodies causes the one or more actuating elements to come into contact with the power generation modules, wherein the contact causes the material of that power generation module to be brought into contact with said other surface to generate electrical power. The power generation modules may supply electrical power to the common output at different times, providing a more continuous supply of electrical power from the common output.

Abstract: The invention relates to a brush module (10) for an electric machine and to a method for mounting such a brush module, the brush module having a brush (13) for forming an electric contact with a slip ring, the brush module having an mounting device (12) and a brush holder (11) for accommodating and holding the brush, the mounting device being realized as a U-shaped sheet-metal bracket (17) which engages over the brush holder, the sheet-metal bracket having laterally protruding fastening tabs (18) for fastening the brush holder to an mounting surface (19), an access opening (25) being formed in the brush holder, a retaining tab, which is formed on a fastening tab of the sheet-metal bracket, engaging in the access opening and holding the brush in the brush holder in a retaining position (24) in a form-fitting manner, the fastening tab having the retaining tab being inclined at an angle ? relative to the mounting surface of the brush holder.

Abstract: A blocking element for a rotor head winding of a turbogenerator has a form which is adapted to the contour of the adjacent conductor of the rotor head winding. A depression extending in the axial direction is made in the side of the blocking element facing the conductor, which depression forms a serpentine channel for a cooling fluid from an inlet port on the small radius to a discharge port on the highest radius, with the discharge port communicating with a ventilation bore of the rotor cap enclosing the rotor winding head. An improved cooling effect with a reduced flow of cooling fluid and an increase in the efficiency of the turbogenerator as a whole results.

Abstract: A magnetic bearing contactlessly supporting a rotor by magnetic force includes: a bearing rotor member made of a magnetic material; and a bearing stator member arranged around bearing rotor member. The bearing stator member includes a core made of a magnetic material and a coil wound around the core. A longitudinal cross-sectional shape of the core has a first part extending in a first direction orthogonal to a direction opposed to the bearing rotor member and wound around with the coil, a pair of second parts extending from both end portions in the first direction of first part to the bearing rotor member side and subsequently extending in a direction approaching each other in the first direction, and a pair of third parts extending from respective distal end portions of the pair of second parts toward the bearing rotor member side. The bearing rotor member also includes a permanent magnet.

Abstract: Systems for removing excess coolant oil and air from a radial air gap between a stator and a rotor of an electric motor are provided. In one example, the systems may include a ring covering the radial air gap, the ring configured to route coolant out of the radial air gap via one or more channels.

Abstract: The invention relates to a linear guideway assembly for contactless linear displacement of a rigid body relative to another rigid body along a linear displacement path (x), said linear guideway assembly comprising: one, single rigid body formed as a linear guideway defining said linear displacement path as well as at least one rigid body formed as a product carrier being displaceable along said single linear guideway, wherein the linear guideway assembly further comprises multiple magnetic bearing assemblies for allowing contactless linear displacement of the at least one product carrier relative to the single, linear guideway, wherein all magnetic bearing assemblies are mounted to the product carrier in such way that the magnetic bearing assemblies are arranged in constraining five degrees of freedom (y, z, ?, ? and ?) of the product carrier relative to the single, linear guideway, whilst allowing one, translational degree of freedom (x) of the product carrier along the single, linear guideway, wherein all m

Abstract: A rotary phase separator for a space environment includes a housing defining a separator chamber therein and a shaft located along a longitudinal axis of the rotary phase separator and inside the housing. Relative motion between the housing and the shaft about the longitudinal axis urging separation of gas and liquid from a two-phase liquid and gas fluid in the separator chamber. One or more magnetic bearing assemblies are supportive of the shaft relative to the housing.

Abstract: A drive motor for vehicles includes: a stator; a rotor rotatably disposed inside the stator; a hollow shaft disposed inside the rotor, configured to be rotatable with the rotor and including a plurality of through-holes; and a housing configured to accommodate the stator, the rotor, and the hollow shaft, and including a channel, wherein the channel is formed in an inner wall of the housing and is configured to allow an upper side of the inner wall and an interior of the hollow shaft to communicate with each other and allow oil flow therein.