In order to improve a trailer coupling, comprising a ball neck, which is movable between a working position and a rest position and has a pivot bearing body arranged at a first end and a coupling ball arranged at a second end, a pivot unit, which is arranged fixed to a vehicle and by means of which the pivot bearing body is pivotal for the purpose of performing a pivotal movement about a pivot axis between a working position and a rest position, wherein the pivot unit comprises a pivot bearing unit fixed to the vehicle and a rotation-blocking device for blocking a pivotal movement of the pivot bearing body about the pivot axis, at least in the working position, the improvement being such that this susceptibility to faults in a trailer coupling of the kind mentioned in the introduction is avoided, it is proposed that a pivot control unit should be integrated within the pivot unit.

An electric-powered vehicle includes: an axle body that includes an axle and drive wheels connected to both ends of the axle; a magnetic geared motor for rotating the axle, the magnetic geared motor including a stator, a low-speed rotor, and a high-speed rotor; a vehicle structure supported by the axle body; a motor support for connecting the vehicle structure and the stator, and supporting the magnetic geared motor by the vehicle structure; and an elastic coupling for coupling the low-speed rotor and the axle such that a rotational force of the low-speed rotor is transmittable to the axle.

The present disclosure provides a synchronous motor, which comprises, an orientation sheet, an orientation gear set, a casing, a rotor, a transmission gear set, an input gear and an output gear set; wherein the orientation sheet is connected with the orientation gear set, and the orientation sheet is provided with a positioning rod, an orientation member and a groove for storing lubricating oil; the bottom surface of the casing is provided with a positioning groove, and the positioning rod is slidably connected with the positioning groove; the rotor is provided inside the casing, the rotor protrudes from the bottom of the casing and is provided with an orientation boss, and the orientation boss bears against the orientation member. The synchronous motor of the present disclosure is compact in structure and has the characteristic of low noise and low use cost, thereby greatly improving the practicability.

The present disclosure provides a synchronous motor, which comprises, an orientation sheet, an orientation gear set, a casing, a rotor, a transmission gear set, an input gear and an output gear set; wherein the orientation sheet is connected with the orientation gear set, and the orientation sheet is provided with a positioning rod, an orientation member and a groove for storing lubricating oil; the bottom surface of the casing is provided with a positioning groove, and the positioning rod is slidably connected with the positioning groove; the rotor is provided inside the casing, the rotor protrudes from the bottom of the casing and is provided with an orientation boss, and the orientation boss bears against the orientation member. The synchronous motor of the present disclosure is compact in structure and has the characteristic of low noise and low use cost, thereby greatly improving the practicability.

A haptic device includes a housing, a first motor configured to rotationally drive a first lead screw, a second motor configured to rotationally drive a second lead screw, and a touch point configured to contact the skin on a distal end. The rotation of the first lead screw is configured to move the touch point along a first axis and the rotation of the second lead screw is configured to move the touch point along a second axis The second axis can be perpendicular to the first axis. The haptic device can be configured to be worn on a user's arm via a wrist band or compression sleeve.

A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

Lightweight high-efficiency, high temperature electric drive system is disclosed herein. An example electric drive system including an electric motor including an output shaft. The example electric drive system including power electronics electrically coupled to the electric motor, wherein the power electronic include an inverter. The example electric drive system including a gearbox coupled to the output shaft. The example electric drive system including a first heat exchanger coupled to a surface of the electric motor, the first heat exchanger including coolant. The example electric drive system including a second heat exchanger coupled to a surface of the power electronics, the second heat exchanger including the coolant.

A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

A linear actuator for adjusting a piece of furniture comprises a motor having a motor shaft, a conversion arrangement coupled to the motor shaft and adapted to convert a rotational movement generated by the motor shaft into an elongation of the linear actuator, and a locking arrangement coupled directly or indirectly to the motor shaft and adapted to selectively cause rotation locking of the motor shaft by means of a locking element. The locking arrangement comprises an inner part with at least one inner chamber and an outer part radially surrounding the inner part and having at least one outer chamber. The outer part and the inner part are rotatable relative to each other in such a way that the at least one inner chamber and the at least one outer chamber can be aligned with each other. The rotation locking is activated by clamping the locking element between the at least one inner chamber and the at least one outer chamber by means of rotation of the inner part and the outer part relative to each other.