摘要:
An electromagnetic actuator comprises a dual stage action, wherein the actuator comprises an electromagnetic element between two ferromagnetic elements. An electric current driven through the electromagnetic element causes a magnetic field of the electromagnetic element to interact with the magnetic fields of the two ferromagnetic elements.
摘要:
Embodiments of the present disclosure include an actuator for steering mirrors with low magnetic hysteresis losses at high frequencies, with a fast step response, and without excessive heating of the steering mirror. Various embodiments of the actuator include two stators (a left stator and a right stator or an inner stator and an outer stator) and a rotor positioned between the stators. Each stator has a core assembly with one or more cores, two or more legs, and two or more faces positioned proximate to the rotor. The two or more legs are separated from one another by portions of the one or more coils. The rotor includes a core and a plurality of magnets, where each magnet has a face positioned proximate to the faces of one core assembly.
摘要:
A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of flat springs. Permanent magnets are formed at one of the inner core and the outer core, and magnetic pole portions are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and a plurality of engagement portions including recesses and protrusions are arranged at the abutting portions.
摘要:
A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.
摘要:
A VCM (voice coil motor) is disclosed, the VCM comprising: a bobbin formed with a support unit protruded from a periphery of a body at a bottom portion of the body, and a recess unit partially removed at the support unit; and a coil block supported by the support unit and including a plurality of coil layers wound at a periphery of the bobbin, wherein first and second distal ends of the coil block pass through the recess unit.
摘要:
A voice coil motor array module includes a carrier, and a plurality of voice coil motors disposed on the carrier and arranged side by side in at least one row along an arrangement direction. Each voice coil motor includes a lens holder having a holder body and a coil wound around the holder body, and two magnetic components respectively disposed on two opposite sides of the holder body and having the same magnetic poles facing each other. When the coil is energized, the coil interacts with the magnetic components to drive displacement of the holder body along a direction parallel to a normal direction of a plane of the arrangement direction.
摘要:
Disclosed is a system for performing a control on a micro-robot using a transfer robot. The system includes a magnetic field control unit configured to control a movement of a micro-structure or a micro-robot within a working area according to an output magnetic field, a transfer robot connected to the magnetic field control unit to transfer the working area in space, and a control unit configured to receive position information about the micro-structure or micro-robot and position information about the transfer robot, and transmit a control signal based on the received position information.
摘要:
Provided are a lens driving motor and an elastic member of the lens driving motor. The elastic member of a lens driving motor, the elastic member includes a first spring and a second spring. The second spring is different from the first spring and disposed together with the first spring on one side of a carrier to support the carrier. A first lead line of a coil and a first external power source are connected to the first spring, and a second lead line of the coil and a second external power source are connected to the second spring to supply power to the coil. Since the carrier can be assembled to other part after a (+) lead line and a (−) lead line of the coil are connected to the first and second springs, respectively, using solder, a process is simple and convenient.
摘要:
An electromagnetic actuator including: a stator; a mover attached displaceable in relation to the stator; a plurality of plate springs elastically coupling the stator and the mover; and a coil member attached to one of the stator and the mover. Each of the plate springs includes an outer circumference attachment part and a center attachment part respectively attached to one and another of the stator and the mover. A plurality of spiral-shaped connection arm parts are provided at equal intervals in a circumferential direction radially between the outer circumference attachment part and the center attachment part so as to extend in a radial direction while being inclined in the circumferential direction. The plate springs overlap in a thickness direction and all of the plate springs are mutually formed with a same material and in a same shape.
摘要:
A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.