Bistable electromagnetic micro-mechanical relay

A micro-mechanical and bistable technology, applied in the direction of non-polar relays, etc., can solve the problems of inability to maintain the on (or off) state, large energy consumption and high cost of monostable relays
CN1604260AInactive Publication Date: 2005-04-06CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2005-04-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

It is a bistable electromagnetic micro machinery relay, which combines the separate process of moving electrode system, plane coil, contact electrode system and magnetic core. The moving electrode system comprises moving electrode, wring beam, contact and frame; the plane coil and contact electrode system are made on the silicon underlay; the moving electrode system is fixed through the frame on the silicon underlay of plane coil and contact electrode; the constant magnetic metal sticks tightly to the surface of the permalloy magnetic core. This relay uses electromagnetic metal to change the magnetic direction of the moving electrode and to turn in the stable on or off status.
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Description

technical field

[0001] The invention relates to a relay based on microelectromechanical system (MEMS) technology driven by electromagnetic force, in particular to a bistable electromagnetic micromechanical relay. technical background

[0002] As a basic electromechanical component, miniature relays are widely used in power management, instrumentation, automatic control and communication systems. Conventional relays are divided into two categories: electromechanical relays (ElectromechanicalRelays) and solid-state relays (Solid-State Relays). Electromechanical relays are based on the pull-in and break-out of metal electrodes. This kind of relay has almost perfect electrical performance, that is, small closed resistance (less than 1 ohm), large conduction current, large open circuit resistance, and small leakage current, but due to mechanical contact, its response speed is slow and its working life is short. . Solid state relays are based on the coupling of phototransistors...

Claims

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