A linear power generator includes a columnar or cylindrical center yoke made of a soft magnetic material and an outer yoke made of a soft magnetic material. In the center yoke, rod-shaped permanent magnets magnetized in a circumferential direction are arranged in the circumferential direction in an outer circumference of the center yoke such that opposed magnetic poles of the permanent magnets adjacent to each other become identical, the permanent magnets are extended in an axial direction, and the center yoke includes plural center-side projecting portions linearly arranged in the circumferential direction. The cylindrical or columnar outer yoke includes plural winding portions, plural groove portions, and an outer-side projecting portion. The winding portions are arranged in the circumferential direction about a center axis. The groove portions are arranged at positions opposed to the permanent magnets.

An industrial heavy load electric linear actuator includes a gearbox, an electric motor, a lead screw, an extension pipe and a load baring structure. The electric motor is connected to the gearbox. A portion of the lead screw is received inside the gearbox and driven by the electric motor, and another portion of the lead screw is extended out of the gearbox. The extension pipe is movably fastened to the lead screw. The load bearing structure includes a sleeve, a bearing, a fastening element, a fixation seat, and a rear supporting seat. The sleeve is mounted to the lead screw and holds the bearing jointly with the fastening element. The fixation seat and the rear supporting seat hold the bearing at outer perimeters of the sleeve and the fastening element.

The invention provides an insert molded lens driving apparatus comprising a lens holder and a driving coil. The lens holder further comprises a plurality of winding posts protruding outwardly therefrom. Each of the plurality of winding posts comprises an insert member partially inserted into the lens holder. The two ends of the driving coil are respectively wound around the plurality of winding posts and thereby to respectively electrically connect to the corresponding insert members. The insert member has a contact or contact area to which a metal component is soldered.

A linear and rotary actuator system includes a shaft member moving linearly in an axial direction and rotating around an axis line, a hollow rotor surrounding the shaft member, a stator of a rotary motor having a space for holding the rotor and which rotates the rotor around the axis line, linear bearings, that rotates together with the rotor to transmit rotation of the rotor of the rotary motor to the shaft member and accepts linear movement of the shaft member, an angle measuring unit for measuring a rotation angle of the rotor, and a rotary motor driver for controlling the rotary motor in such a manner that the rotation angle of the rotor of the rotary motor measured by the angle measuring unit conforms to a command value. The rotation angle of the shaft member is controlled by controlling the rotation angle of the rotor of the rotary motor.

A lens actuator includes a base; a guide rail coupled to the base; a first lens assembly including a lens group and moving in an optical axis direction along the guide rail; a first magnet disposed on one side of the first lens assembly; and a first coil unit spaced apart from the first magnet and disposed on the base. The guide rail may include a first stopper of the first lens assembly at one end. The first stopper may limit movement of the first lens assembly. The material of the first stopper of the guide rail may be different from the material of the base.

A lens actuator includes a base, a first guide rail disposed within the base, a second guide rail disposed within the base, a first lens assembly configured to move in an optical axis direction along the first guide rail, a second lens assembly configure to move in the optical axis direction along the second guide rail, a first magnet disposed on one side of the first lens assembly, a first coil unit spaced apart from the first magnet and disposed within the base, and a first ball disposed between the first lens assembly and the first guide rail. The first guide rail includes a first guide recess. A length of the first guide recess is greater than a length of the first lens assembly. The first guide rail and the second guide rail are diagonally disposed within the base on a plane perpendicular to the optical axis.

An electric machine, in particular for use within the powertrain of a hybrid or fully electric motor vehicle, having a stator and a rotor, said stator and rotor being received in an engine housing The engine housing has at least one A-bearing shield and at least one B-bearing shield for supporting the rotor relative to the engine housing, wherein the A-bearing shield and/or the B-bearing shield has/have a two-part design, in each case having a respective intermediate inner shield which is arranged axially between the stator and a cover shield that can be fixed to the engine housing, and the intermediate shield receives a bearing for the rotor. The cover shield can be releasably fixed to the intermediate shield side facing away from the stator, and the cover shield has centering means for radially centering the intermediate shield.