The present disclosure provides an electromagnetic actuator that drives an armature by an electromagnetic force. The electromagnetic actuator includes a stator, a coil, and an insulator. The stator is formed of a magnetic material and has a cylindrical portion. The coil is disposed outside of the stator. The coil generates a magnetic field when being energized. The insulator is disposed in a particular region of the stator facing the coil in a radial direction. The insulator extends partially along the stator in a circumferential direction and suppresses a current flowing through the stator in the circumferential direction. The stator is continuously formed entirely along the circumferential direction by the magnetic material.

A linear-rotary actuator includes a base, a first linear motor, a second linear motor, a linear rail, and a ball screw. The first and second linear motors are disposed on the base and respectively have a coil assembly and a magnet backplane. The linear rail is located on the base. The ball screw includes a screw and a nut, wherein the screw is connected to the first linear motor, and the nut is connected to the second linear motor. When the screw and the nut are driven by the first and second linear motors to move along the linear rail in a synchronized manner, the linear-rotary actuator provides linear motion output. When the nut is driven by the second linear motor to move along the linear rail in an asynchronous manner with respect to the screw, the linear-rotary actuator provides rotary motion output.

A linear-rotary actuator includes a base, a first linear motor, a second linear motor, a linear rail, and a ball screw. The first and second linear motors are disposed on the base and respectively have a coil assembly and a magnet backplane. The linear rail is located on the base. The ball screw includes a screw and a nut, wherein the screw is connected to the first linear motor, and the nut is connected to the second linear motor. When the screw and the nut are driven by the first and second linear motors to move along the linear rail in a synchronized manner, the linear-rotary actuator provides linear motion output. When the nut is driven by the second linear motor to move along the linear rail in an asynchronous manner with respect to the screw, the linear-rotary actuator provides rotary motion output.

A rotary electric machine including a rotor having salient poles, each salient pole comprising a pole body surrounded by at least one coil, and at least one pair of wedges comprising a first wedge positioned against the coil of a first salient pole and a second wedge positioned against the coil of a second salient pole consecutive with the first. The first and second wedges are able to move in the inter-pole space with respect to one another along the longitudinal axis of the rotor, and each having at least one contact surface, the contact surface or surfaces of the first wedge being configured to come into contact with the contact surface or surfaces of the second wedge as one wedge is moved longitudinally with respect to the other in such a way that the movement of one wedge with respect to the other induces a pressing of these wedges against the coils so as to hold the coils of the first and second salient poles respectively against the pole bodies of the first and second salient poles.

A lens moving apparatus, including a bobbin; a first coil mounted at an outer circumference of the bobbin; a first magnet moving the bobbin in a first direction parallel to an optical axis by interaction with the first coil; a housing supporting the first magnet; an upper elastic member disposed at a top surface of the bobbin and at a top surface of the housing; a lower elastic member disposed at a bottom surface of the bobbin and at a bottom surface of the housing; and first and second winding protrusions disposed with being opposite to each other, the first coil being wound on the first and second winding protrusions.

A lens moving apparatus, including a bobbin; a first coil mounted at an outer circumference of the bobbin; a first magnet moving the bobbin in a first direction parallel to an optical axis by interaction with the first coil; a housing supporting the first magnet; an upper elastic member disposed at a top surface of the bobbin and at a top surface of the housing; a lower elastic member disposed at a bottom surface of the bobbin and at a bottom surface of the housing; and first and second winding protrusions disposed with being opposite to each other, the first coil being wound on the first and second winding protrusions.

A linear motor for use in semiconductor processing apparatuses. The linear motor is a three axis linear motor that includes magnets that cover end turns of coil windings in order to utilize the end turns to generate a force along a second or third axis. The coil windings are positioned between two magnet arrays and each magnet array has a magnet, such as a voice coil motor (VCM) magnet, positioned along one side to cover the endturns and provide a magnetic flux. A VCM back iron is positioned to provide a magnetic flux return path for the VCM magnets. The structure in conjunction with a DC offset produces a useful force.

The present invention relates to a driving control of a voice coil motor (hereinafter, referred to as VCM) which moves lens of a camera module, more particularly to a driving control method for VCM capable of reducing the noise generated at the time of initial driving or landing of the lens and reducing the moving time thereof, and the method is characterized by and include the steps of: applying a linearly increasing current with a first slope to the VCM up to a pre-set first inflection point in response to a camera operation-on command; and moving the lens to an infinite position by applying a linearly increasing current with a second slope less steep than the first slope to the VCM from the first inflection point to the infinite position.

The invention consists of a washing or washing/drying machine comprising a frame, an assembly constrained to said frame by constraint means that allow said assembly to oscillate relative to said frame, energy recovery means configured to transform kinetic energy in electrical energy, wherein said energy recovery means comprise a current generator configured to transform the oscillations of said assembly into an electrical current.

The invention consists of a washing or washing/drying machine comprising a frame, an assembly constrained to said frame by constraint means that allow said assembly to oscillate relative to said frame, energy recovery means configured to transform kinetic energy in electrical energy, wherein said energy recovery means comprise a current generator configured to transform the oscillations of said assembly into an electrical current.