A brushless electric motorsystem having integrated power stages, said electric motor system comprising a rotor, a stator, a plurality of power stages, and a cooling system comprising a substantially flat hollow main cool body arranged to support the flowing of a cooling medium inside said hollow main cool body for cooling said main cool body, a base cooling plate connected to a first flat surface of said hollow main cool body and to said plurality of power stages for transferring heat between said plurality of power stages and said base cool plate, heat resistance inserts connected to said base cooling plate and said plurality of electrically excitable coils for transferring heat between said plurality of coils and said base cooling plate wherein said heat resistance inserts provide for a thermal conductivity, thereby creating a thermal buffer such that said electrically excitable coils are cooled less compared to said power stages, by said cooling system.

An electric motor suitable for an electric camshaft phaser comprises a main motor module and a plug-in module electrically and mechanically connected thereto. The main motor module comprises a housing shell, a stator and a rotor mounted in the housing shell by way of a rolling bearing. The main motor module is inserted into the plug-in module, and electrical connections between the plug module and the main motor module are established by insulation displacement connections, which can be produced by joining the modules in the axial direction.

The invention relates to an electric drive, in particular for a vehicle, comprising an electric motor (1) and a power supply (6), the power supply (6) being on the radial outer surface of the electric motor (1), and around the electric motor (1) angularly, in particular over an angle of 360.

An electric machine comprising a rotor having a rotor shaft and a brush module having a brush holder with at least one brush for energizing the rotor, wherein the brush module comprises a shaft journal which can be coupled reversibly mechanically to the rotor shaft of the electric machine and against which the brush lies.

A rotary electric machine may include a motor portion and an inverter portion. The motor portion may include a stator, a plurality of coils, circumferentially disposed around the stator and connected to form a plurality of galvanic isolated winding sections each having a subset of the coils connected in a multi-phase configuration and each of which may be provided with a coil terminal, and a rotor with a number of pole pairs rotatably disposed against a stator magnetic field generated by currents in the coils. The inverter portion may include a plurality of power switching elements connected to form a number of half bridge legs, and further comprising a high side power switching element, a low side power switching element in each half bridge leg, and an output connector at each half bridge leg. The number of half bridge legs may be equal to a number of isolated winding sections multiplied by a number of phases of the multi-phase configuration. The output connector of each half bridge leg may be connected to an individual coil terminal.

An electric motor is disclosed having a detachable stator tooth. In some implementations, coil windings of the electric motor may be coupled to one or more drivers independently of other coil windings. A method of repairing and manufacturing an electric motor having a detachable stator tooth is also disclosed.

A linear motor system may include a plurality of track sections that may enable a mover to traverse a track formed by the plurality of track sections. The system may also include a plurality of connection modules, such that each connection module of the plurality of connection modules may physically couple two respective adjacent track sections of the plurality of track sections and communicatively couple the two respective adjacent track sections of the plurality of track section. Each connection module may also electrically couple the two respective adjacent track sections of the plurality of track section.

A motor is provided. The motor includes a stator, a rotor rotatably disposed in the stator, and a motor shaft provided in the rotor to rotate integrally with the rotor. The rotor includes at least one permanent magnet fixing core, at least one injection fixing core alternately stacked with the at least one permanent magnet core in a direction of the motor shaft, a plurality of permanent magnets inserted at a predetermined interval in the at least one permanent magnet fixing core and the at least one injection fixing core, and an injection ring formed to cover the at least one permanent magnet fixing core, the at least one injection fixing core, and the plurality of permanent magnets. The at least one permanent magnet fixing core is formed to prevent the permanent magnets from becoming separated from the rotor by a centrifugal force, and the at least one injection fixing core is formed to prevent the injection ring from becoming separated from the rotor by the centrifugal force.

Provided is a manufacturing method of a wire rod for forming a coil, the manufacturing method including the steps of: placing an element wire in a forming space surrounded by a plurality of split dies; and pressure-forming the element wire by moving the plurality of split dies in a direction of narrowing the forming space. In the step of pressure-forming the element wire, at least one of the plurality of split dies is moved, and the plurality of split dies each having a surface that changes in shape in a longitudinal direction of an element wire to pressure-form the element wire into the wire rod having a plurality of different cross-sectional shapes in the longitudinal direction.

Switching elements are mounted on a substrate and switch energization of motor windings. A lead wire set connects phase coils of the motor windings to the substrate. The switching elements, the lead wire set, a power terminal which is a power supply terminal and a ground terminal, and a control circuit unit are provided for each system. The switching elements, the lead wire set and the power terminal are collectively arranged in a power region for each system, and the lead wire sets are arranged in rotational symmetry.