An electric motor of a motor vehicle, in particular a steering motor, includes a housing having a motor compartment and an electronics compartment. The motor compartment and the electronics compartment are separated by a housing wall that has a plurality of openings. A stator is situated in the motor compartment and an electronics system is situated in the electronics compartment. The stator and the electronics system electrically contact one another through phase connections which project through the openings. A separating element is situated between the stator and the electronics system. The separating element at least partially covers the openings and the housing wall.

An electric motor of a motor vehicle, in particular a steering motor, includes a housing having a motor compartment and an electronics compartment. The motor compartment and the electronics compartment are separated by a housing wall that has a plurality of openings. A stator is situated in the motor compartment and an electronics system is situated in the electronics compartment. The stator and the electronics system electrically contact one another through phase connections which project through the openings. A separating element is situated between the stator and the electronics system. The separating element at least partially covers the openings and the housing wall.

A motor module and a water-cooling pump having motor module are provided. The motor module has a combined first shell and second shell, a driving shaft mounted on the first shell and second shell, the stator assembly is mounted in the first shell, and the rotor assembly is mounted on the driving shaft. An opening of the first shell forms a first mounting portion, which can be mounted on or detached from a second mounting portion of the second shell via easy means. The modularized motor module can be mounted into a water machine via an opening of a shell and then a motor cover is mounted on the opening of the shell, and a drawing mechanism and pressured housing can be mounted at another end, so the assembling process is easy.

Installation workability of a motor system 1 is improved and occurrence of a communication error between an inverter 50 and an electric portion 83 of an electric oil pump 80 due to entry of noise can be suppressed. A motor portion 2 and the inverter 50 are adjacent to each other in a motor axial direction, at an adjacent portion, a wall of a casing of the inverter 50 on an arrow A direction side and a wall of a casing of the motor portion 2 on an arrow B direction side are shared as a barrier 3b made of the same member, and in a position that a pump portion 81 side of the electric oil pump 80 including a pump portion 81, an internal motor 82, and an electric portion 83 arranged in the motor axial direction faces the arrow A direction side, the electric oil pump 80 is disposed in the casing of the motor portion 2 and the inverter 50.

An electric machine including a shaft, a rotor back assembly surrounding a portion of the shaft, and two or more permanent magnets radially positioned around the perimeter of the rotor back assembly. The electric machine also includes a rotor fan with multiple fan blades formed in an exterior surface of the rotor back assembly and one or more ventilation channels extending through the rotor back assembly. Methods of exporting heat from an electric machine, wither from a machine housing or through the shaft is also disclosed. The heat exportation methods feature the circulation of a fluid with the rotor fan through the ventilation channels and into contact with the housing, or exporting heat from the rotor back assembly through the shaft.

One embodiment relates to a controller and a motor assembly comprising same, the controller comprising: a controller housing; a controller cover disposed at an opening of the controller housing; a DM filter unit disposed over the controller cover; a CM filter unit disposed over the DM filter unit; a power module unit disposed under the controller cover; a substrate disposed under the power module unit; and a first connector and a second connector which penetrate the controller cover and have one side thereof disposed at the substrate. Accordingly, a heat generation problem can be resolved while miniaturization and weight lightening are realized, and some parts of the controller can be shared.

One embodiment relates to a controller and a motor assembly comprising same, the controller comprising: a controller housing; a controller cover disposed at an opening of the controller housing; a DM filter unit disposed over the controller cover; a CM filter unit disposed over the DM filter unit; a power module unit disposed under the controller cover; a substrate disposed under the power module unit; and a first connector and a second connector which penetrate the controller cover and have one side thereof disposed at the substrate. Accordingly, a heat generation problem can be resolved while miniaturization and weight lightening are realized, and some parts of the controller can be shared.

An electric actuator 1 includes: an electric motor 10; a first motion conversion mechanism 20 that has a screw shaft 21 rotatably driven by the electric motor 10 and a nut 22 screwed with the screw shaft 21, and converts a rotary motion of the screw shaft 21 into a linear motion of the nut 22; and a housing 40 accommodating the electric motor 10 and the motion conversion mechanism 20. The housing 40 includes a pair of housing split bodies 41 and 42 split by a plane parallel to an axial direction of the screw shaft 21.

An electric motor built for exposure to high pressure fluid includes a unitary metal sleeve that provides a fluid barrier between the rotor and the stator. An overmolded resin encapsulates the stator windings and reinforces the sleeve to minimize deformation of the sleeve under high fluid pressures. The overmolded resin also fixes the positions of insulation displacement connectors connected to the stator windings, thereby avoiding mechanical brackets and fasteners for holding the insulation displacement connectors in position.

An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.