57results about How to "High electromagnetic conversion efficiency" patented technology

A MEMS mirror device includes a rectangular frame, a mirror unit having a reflecting portion on one face thereof and connected via the hinges inside the frame, and a drive unit for tilting the mirror unit around the hinges as the axis, wherein the frame has two protruding portions spaced at a regular interval and extending into the frame on both sides of a connected portion with the hinge, and an elastic member is provided to bridge the hinge between two protruding portions.

The invention relates to an electromagnetic induction energy storage system, comprising an isotropy electromagnetic induction energy storage device and a high frequency alternating magnetic field producing circuit; the isotropy electromagnetic induction energy storage device is integrated with an electrical storage device and is connected with electrical appliance; the high frequency alternating magnetic field producing circuit is driven by power supply to produce a high frequency alternating magnetic field; when the isotropy electromagnetic induction energy storage device is close, producing current under the effect of electromagnetic induction; the isotropy electromagnetic induction energy storage device is further composed of a magnet, a high frequency coil, a filter rectification circuit, and an electrical storage device; the magnets are two, three, each of which are vertical to each other; the high frequency coil is divided into two or three groups to twist the magnet. The invention is provided with magnetic field acceptable isotropy design, which makes the magnetic field accept directional dead angle minimum, so as to improve coupling factor and electromagnetic conversion efficiency. The invention is appropriate for various electric devices, specifically the one as human body medical appliance hard to accomplish conventional contact charging.

The invention discloses a light lamp in particular to an internally-arranged magnetic energy generator form magnetic energy lamp that the internally-arranged magnetic energy generator produces the electromagnetic induction and activates fluorescent powder to light. The invention includes the lamp body, the lamp body isn' t equipped with less than a penetrating hole or an internally-arranged hole, the penetrating hole or the internally-arranged hole isn' t equipped with less than the magnetic energy generator, the magnetic energy generator and the coupled driving impulse transformer of the magnetic energy lamp or the semi-bridge, the contravariant formed by the general bridge driving IC, the alternating circuit proceed with electromagnetic coupling or electromagnetic induction; two edges of the penetrating hole and two edges of the lamp body outer casing are sealed and form the vacuum cavity of the lamp body, the vacuum cavity of the lamp body charges the inactive gas and phosphor powder painted by the rare earth. The invention provides the simple structure, the various shapes, which reduces resonance frequency of the no electrode lamp from 2.6MHZ-2.8MHZ and the temperature of the circuit, the magnetic body and the lamp body, improves the electromechanical conversion efficiency from 25%-36%, increases two times-four times electromechanical induction density, and expands the application range of the magnetic energy lamp.

A bistable relay and a bistable actuator are provided. The bistable actuator includes a magnetic latching mechanism and an electromagnet. The magnetic latching mechanism includes a rotation shaft, a pillar-shaped permanent magnet, a columnar hollow magnetic conductor and two shells, and operates between a first and second stable states. The columnar hollow magnetic conductor surrounds the pillar-shaped permanent magnet wrapping the rotation shaft, and maintains a gap with the pillar-shaped permanent magnet. The electromagnet is connected to the columnar hollow magnetic conductor for driving the pillar-shaped permanent magnet to rotate, so as to switch the magnetic latching mechanism to the stable state. During a process that the magnetic latching mechanism is switched to the stable state, the rotation shaft rotates synchronously along with the magnetic latching mechanism to drive an impact system to move relative to a contact system, so as to contact or disconnect the contact points.

The invention provides a multifunctional electromagnetic pulse experiment instrument which comprises a wide-range adjustable DC power supply composed of two regulated power supplies; the experiment instrument also comprises a multi-frequency direct-reading and ultra-low frequency adjustable pulse frequency controller, a high voltage generator demodulated by the pulse frequency controller, a high voltage ammeter, a movable experimental component and a pulse switch signal output socket; an experiment platform with a high-voltage discharge prevention shell is constructed on the top part of the experiment instrument; the movable experiment component and an adjustable electromagnet are mounted on the platform. The multifunctional electromagnetic pulse experiment instrument not only can output the stable high-voltage direct current, but also can output the pulse high-voltage electricity with adjustable frequency and pulse width, and output the pulse magnetic field or provide independent pulse switch signals for various electromagnets. The multifunctional electromagnetic pulse experiment instrument can be adopted for conducting a plurality of high-voltage static experiments and the experiments in biological, physical and medical fields efficiently and conveniently. The invention provides an electromagnetic pulse experiment instrument which has the advantages of complete functions, convenient application, low cost and practicality for the college teaching and research.

The invention belongs to the technical field of an acoustic wave motor, and specifically relates to a stator assembly production process and an acoustic wave motor. The stator assembly production process comprises the following steps: 1) fixing an iron core outer ring, wherein the iron core outer ring is a closed ring, and the iron core outer ring comprises horizontal surfaces and arc surfaces; 2)arranging iron core teeth to the inner side of the iron core outer ring, wherein the iron core teeth are symmetrically arranged along the diameter direction of the iron core outer ring, and the ironcore teeth are symmetrically arranged on the arc surfaces of the iron core outer ring; 3) fixing a support, wherein the support is sleeved in the iron core outer ring, and the support is provided witha first limit portion for clamping the iron core outer ring and a gap portion for fixing a coil; and 4) carrying out winding through a winding jig, the coil being wound in the gap portion of the support. The stator assembly production process and the acoustic wave motor are high in winding efficiency; and the electromagnetic conversion efficiency of the stator assembly is high.