A robot device includes a first link and a second link coupled to the first link via an elbow. One or more of the first link or the second link rotates about an axis of the elbow. The robot device further includes a generator disposed in the elbow. The generator is configured to generate electrical power based on relative angular mechanical movement associated with the elbow. The robot device further includes an end effector configured to transport a substrate within a substrate processing system. The end effector is disposed at a distal end of the second link. The end effector is to receive the electrical power generated by the generator.

A magnetic geared motor includes a stator, a first inner rotor that is disposed to an inner side of the stator and rotates by a magnetomotive force of the stator, a first center rotor disposed between the stator and the first inner rotor, a second center rotor disposed to an inner side of the first inner rotor, and a second inner rotor disposed to an inner side of the second center rotor. The stator, the first center rotor, the first inner rotor, the second center rotor, and the second inner rotor are disposed coaxial to each other, and the first inner rotor includes first outer magnetic pole pairs disposed in a circumferential direction and a plurality of first inner magnetic pole pairs disposed in the circumferential direction.

An electrically and mechanically driven automotive accessory including a housing, an electric motor, a pulley, and a pulley assist mechanism. The electric motor comprises a stator assembly that is mounted to the housing and a rotating assembly that is mounted to a shaft. The electric motor creates a primary torque flow path that drives rotation of the rotating assembly relative to the stator assembly. The pulley is rotatable relative to the shaft and the rotating assembly. The pulley assist mechanism includes a plurality of circumferentially spaced teeth nested with a conductive body, a rotor body fixedly mounted to the shaft, and an electromagnet that is configured to induce a magnetic field between the circumferentially spaced teeth, the rotor body, and the pulley, which creates a secondary torque flow path between the pulley and the rotor body.

An electrically and mechanically driven automotive accessory including a housing, an electric motor, a pulley, and a pulley assist mechanism. The electric motor comprises a stator assembly that is mounted to the housing and a rotating assembly that is mounted to a shaft. The electric motor creates a primary torque flow path that drives rotation of the rotating assembly relative to the stator assembly. The pulley is rotatable relative to the shaft and the rotating assembly. The pulley assist mechanism includes a plurality of circumferentially spaced teeth nested with a conductive body, a rotor body fixedly mounted to the shaft, and an electromagnet that is configured to induce a magnetic field between the circumferentially spaced teeth, the rotor body, and the pulley, which creates a secondary torque flow path between the pulley and the rotor body.

Systems and methods for electronically limiting torque in a power tool. One power tool includes a motor, a trigger, and a controller connected to the trigger and the motor. The controller is configured to provide, in response to actuation of the trigger, power to the motor, determine a speed of the motor, activate the electronic clutch, in response to determining that the speed of the motor has dropped by the speed drop threshold within the first period of time, to electronically brake the motor for a second period of time, and provide, in response to the second period of time having passed, power to the motor.

Systems and methods for electronically limiting torque in a power tool. One power tool includes a motor, a trigger, and a controller connected to the trigger and the motor. The controller is configured to provide, in response to actuation of the trigger, power to the motor, determine a speed of the motor, activate the electronic clutch, in response to determining that the speed of the motor has dropped by the speed drop threshold within the first period of time, to electronically brake the motor for a second period of time, and provide, in response to the second period of time having passed, power to the motor.

The invention refers to an electric machine (30) comprising an electric motor (15) and a magnetic gear arrangement (20). The motor (15) is a brushless motor with an internal stator (31) and an external rotor (34). The magnetic gear arrangement (20) is located displaced along the longitudinal axis (24) in respect to the electric motor (15). The magnetic gear arrangement (20) comprises a first rotating element (41) with permanent magnets (42) and a second rotating element (44) with permanent magnets (45) both rotatable about the longitudinal axis (24). The second rotating element (44) is connected to an output shaft (46) of the electric machine (30). A static modulator (48) comprising ferromagnetic elements (49) is disposed between the permanent magnets (42; 45) of the rotating elements (41; 44). It is suggested that a venting element (22) comprising electrically isolating material is located between the electric motor (15) and the magnetic gear arrangement (20), thereby electrically isolating the electric motor (15) from the magnetic gear arrangement (20).

An electric actuator includes a casing having a base, on which an electric motor is fixed having a stator with radially extending straight teeth and having a plurality of coils and a rotor formed by a plurality of magnets. The coils extend in a plane parallel to the base of the casing and the rotor is extended by a pinion forming a worm gear with an axis perpendicular to the orientation of the coils. The worm gear meshes with a threaded rod extending parallel to the base of the casing, wherein the threaded rod is guided at the rear by a fixed smooth bearing or by a fixed nut, with the smooth bearing or nut being rigidly connected to a cover of the casing. The axial end of the worm gear is guided by the cover and a printed circuit, to which the plurality of coils is connected, is positioned between the stator and the threaded rod.

A housing includes an accommodation space for a prime mover and a speed reducer. A rotational translation unit includes a rotation portion that rotates relative to the housing upon receiving torque outputted from the speed reducer, and a translation portion that moves relative to the housing in an axial direction according to rotation of the rotation portion. The accommodation space is between the rotation portion and the housing. A clutch in a clutch space allows or interrupts transmission of torque between a first transmission portion and a second transmission portion. The rotation portion is between the clutch space and the accommodation space. A sealing member has an annular shape in contact with the rotation portion, and maintains an air-tight or liquid-tight state between the accommodation space and the clutch space.

A drive device includes a fluid coupling and a rotary electrical machine. The fluid coupling includes an impeller and a turbine, and is configured such that a torque is inputted thereto from one axial side and outputted therefrom to another axial side. The rotary electrical machine includes a first stator and a rotor. The first stator is disposed in a non-rotatable manner. The rotor is disposed to be rotated about a rotational axis of the fluid coupling. The first stator includes a first stator core, first and second coil ends. The first coil end protrudes from the first stator core in an axial direction. The second coil end protrudes from the first stator core to an opposite side of the first coil end in the axial direction. The first coil end is bent radially outward and located in part radially outside an outer peripheral surface of the first stator core.