Abstract: A rotor includes an inner wall and an outer wall, where the inner wall forms a space and is radially centered along a central longitudinal axis of the rotor. The rotor further includes a first magnetic pair of legs corresponding to a first pole. The first leg and a second leg of the first magnetic pair of legs are disposed within the rotor, and a first angular distance between the first leg and the second leg decreases from the outer wall to the inner wall. A second magnetic pair of legs corresponding to a second pole that differs from the first pole, a third leg and a fourth leg of the second magnetic pair of legs being disposed within the rotor to extend radially inward from the outer wall toward the inner wall, a second angular distance between the third leg and the fourth leg decreases from the outer wall to the inner wall.

Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.

Abstract: A stator device for a linear motor comprises an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising a stator tooth and a coil wound around the stator tooth and a holding module for holding the magnetic field generator, the holding module having a first and a second holding device, wherein the magnetic field generator is arranged between the two holding devices in that a first end of the stator tooth is fixed to the first holding device and a second end of the stator tooth is fixed to the second holding device.

Abstract: An electric machine having a rotor, stator and housing. The rotor includes a radially mounted array of permanent magnets and the stator includes a plurality of electromagnets radially positioned around the rotor. The stator is encapsulated such that the stator encapsulant is in thermal contact with housing structures, for example the housing end plates. In some embodiments, the entire perimeter portion of the housing is in thermal contact with the stator or the stator encapsulant. The stator encapsulant provides for device robustness and thermal transfer from the stator to the housing. The thermal conductivity of the encapsulant may be enhanced by mixing an additive to the encapsulant to increase thermal conductivity.

Abstract: An armature includes: an integrated core with multiple split cores coupled to each other; a coupling member for coupling the multiple split cores; a coil attached to the integrated core; a block attachment part provide to a machine attachment side of the integrated core; a protection sheet having ability to be impregnated with resin and covering a surface of the integrated core and a surface of the block attachment part; a block attached to the block attachment part and having a machine attachment surface arranged at the block attachment side of the integrated core; and a resin layer covering the protection sheet covering the integrated core. The machine attachment surface of the block is exposed from the resin layer.

Abstract: A stator for an electric machine has a stator block and at least one first and one second phase winding. The first and second phase windings are supplied with current having different phases. At least one stator slot is formed in the stator block. Several layers of the first phase winding and several layers of the second phase winding are arranged in the stator slot. One layer of the first phase winding defines a layer of the second phase winding in the stator slot.

Abstract: A drive unit for a revolving door with an electronically commutated multipole motor having a quantity of coil elements and a quantity of magnet elements. The multipole motor has a flat base structure and a disk-shaped or cup-shaped stator part arranged at a stationary structural component part. A disk-shaped or cup-shaped rotor part is arranged in a plane-parallel manner with respect to the stator part and can be drivingly connected to a turnstile of the revolving door. The coil elements and the magnet elements are received in an area between the stator part and the rotor part.

Abstract: A stator for an electric motor includes: an annular lead wiring part attached to one axial end of the stator and routing a power lead to a winding of the stator; and a lead-out part provided on the radially outer side of the annular lead wiring part and leading out the power lead to the radial outside of the lead wiring part. The lead wiring part is formed such that the curvature of the inner diameter is different near the lead-out part compared with the remaining portion, and the radius of the inner diameter of the lead wiring part is largest at a portion other than near the lead-out part.

Abstract: A motor shaft is configured to be press-fitted into a hole formed in a press-fitted component from a front end side in an axial direction. The motor shaft includes: a shaft body; a first annular projection portion that protrudes outwardly in a radial direction of the shaft body and is brought into contact with an inner circumferential surface of the hole the first annular projection portion being positioned at a first position; and a second annular projection portion that protrudes outwardly in the radial direction of the shaft body and is brought into contact with the inner circumferential surface of the hole, the second annular projection portion being positioned at a second position that is shifted from the first position toward a rear end side in the axial direction of the shaft body.

Abstract: A motor includes a stator, a separating member and a rotor. The stator includes an iron core. The separating member is made of insulating material and includes a first separating part, a second separating part and a third separating part. The second separating part is arranged between the first and third separating parts, and the iron core is arranged between the first and second separating parts. The rotor is rotatably coupled with the separating member and includes a permanent magnet unit arranged between the first and second separating parts. As such, the separating member is able to provide an improved insulation effect for the motor, thus prolonging the service life of the motor.

Abstract: The present application relates to the field of motors, and provides a motor, a gimbal and a mechanical are having the same. The motor includes a support, a circuit board installed on the support and including a coil circuit, a rotating shaft, and a permanent magnet. The support is installed on the rotating shaft. The permanent magnet is disposed adjacent to the coil circuit, and there is a gap between the permanent magnet and the coil circuit. The permanent magnet is of an axially magnetized structure. In the present application, the circuit board is adopted as a carrier of the coil circuit to replace an icon core in the traditional technology, thereby eliminating defects such as cogging torque, hysteresis, and eddy-current losses that are generated by an existing motor from the root. More over, the axial size of the motor and the weight and volume of the motor are reduced.

Abstract: An electrical machine includes housing surrounding a stator laminated core and a stator winding. Stator core support rings are arranged between the housing and the stator laminated core and radially surround the stator laminated core, with a cavity being formed between the housing, the stator laminated core and the stator core support rings. The stator laminated core has a cooling channel which is fluidically coupled with the cavity via a channel entry arranged centrally in the middle of the stator laminated core, thereby creating in conjunction with the channel entry a T-shaped form of the cooling channel so that a stream of coolant is not heated over an entire length of the stator laminated core, but only over a shorter stretch as a result of the T-shaped form.

Abstract: A reluctance motor and a flux barrier structure thereof are provided. The flux barrier structure is disposed in a rotor, and the flux barrier structure has at least one flux barrier space and a plurality of support bars. The flux barrier space is formed by at least one surrounding wall of the rotor. The support bars are intersected with each other in the flux barrier space, and the support bars are extended from one side of the enclosure wall to the opposite side thereof.

Abstract: A rotor core includes at least one core refrigerant passage configured to release a refrigerant to a gap between the rotor core and a stator. The core refrigerant passage includes: a central refrigerant passage provided radially inside a permanent magnet so as to extend in an axial direction, the central refrigerant passage being opened on axial end surfaces of the rotor core; an inner refrigerant passage communicating the shaft refrigerant passage with the central refrigerant passage; an outer refrigerant passage communicating the central refrigerant passage with the gap; and dams provided on both axial-end sides of the central refrigerant passage relative to the outer refrigerant passage so as to project toward a radially inner side from a radially outer side in the central refrigerant passage.

Abstract: The present disclosure relates to a ring for a rotor of an electric machine as a support for a retaining ring and for cooling coils of the rotor. It is an object of the invention to provide measures for cooling coils of a rotor of an electric machine. Disclosed is a ring for an electric machine, the ring is connected between a retaining ring and coils wound around a rotor, whereas the ring is fabricated from a non-conductive material.

Abstract: A stator includes a stator core, a plurality of phase windings, a neutral line and a fixing portion. The plurality of phase windings is wounded a plurality of times by a predetermined winding method crossing between a plurality of slots. One lead end of each phase winding is a neutral point connecting portion, and the one lead end is pulled out from an axially end portion of the stator core. The neutral line connects the neutral point connecting portions of the phase windings of different phases together. The neutral line is separate from the phase windings. The fixing portion fixes a first phase winding that is connected to the neutral line. A second phase winding is adjacent to the first phase winding together.

Abstract: An apparatus including a housing; a motor having a stator and a rotor, where the stator is connected to the housing; an environment barrier extending between the stator and the rotor; and a sealing system connecting the environment barrier with the housing. The sealing system includes a first seal interface and a second seal interface. The first seal interface connects to the housing at a first diameter which is at least partially less than or equal to an inner diameter of the stator. The second seal interface connects to the housing at a second diameter which is at least partially greater than or equal to an outer diameter of the stator.

Abstract: A coolant flow channel is formed so as to pass axially through a rotor core radially inside magnet housing apertures, a linking flow channel is formed so as to have a flow channel width that is narrower than a maximum flow channel width of the coolant flow channel, so as to link the coolant flow channel and the magnet housing apertures, and so as to pass axially through the rotor core, and permanent magnets are fixed to an inner wall surface of the magnet housing apertures by an adhesive that is disposed only between a wall surface of the permanent magnets that is positioned on a radially outer side and the inner wall surface of the magnet housing apertures so as to expose a region of a wall surface of the permanent magnets that is positioned on a radially inner side that faces the linking flow channel.

Abstract: The present disclosure broadly relates to apparatuses and methods for generating electric power. More particularly, the present disclosure relates to a self-excited electric generator. The self-excited electric generator may include auxiliary windings to provide a source of electricity to an associated generator control unit (GCU). The apparatuses and methods of the present invention may provide added benefits of reducing excitation requirements from the GCU. Thereby, the apparatuses and methods may reduce cost, weight, and size of an electric generator, and may increase reliability of associated systems.

Abstract: A position sensing system for a switched reluctance machine, such as that of an Integrated Starter Generator, Turbogenerator or electric Supercharger wherein the system comprises a pair magnets, a magnet carrier, and a sensor element, wherein the sensor element is mounted upon an end of a rotatable shaft of the SR machine, and wherein the sensor element is mounted on a circuit board, and sits in a well formed by the magnets which are arranged such that the magnetic flux follows a path similar to that of a horseshoe magnet, and whereby magnetic flux produced by the magnets is concentrated within the well of the magnet carrier in a direction normal to the axial direction of the shaft of the SR machine.