Micromechanical electrostatic relay, and a method for its...

Details Micromechanical electrostatic relay, and a method for its... Micromechanical electrostatic relay, and a method for its...

H - Electricity

01

H

H01H 59/00 (2006.01)

Patent

CA 2300956

The micromechanical relay has a base substrate (81) on which a flexible induction tongue (41) with a moveable contact (8) is structured in such a way that it is elastically curved away from the substrate in non-operational mode. A fixed contact (7) interacting with the moveable contact is arranged on a fixed contact flexible tongue (42) that is also curved away from the base substrate, so that the open ends of both flexible tongues face each other and the moveable contact (8) overlaps the fixed contact. By arranging the contacts on two flexible tongues, a relatively high extra way of contacts is achieved throughout the entire stretched position despite a possible low inductive path using an electrostatic driving system, thereby enabling sufficient contact force to be generated.

Le relais micromécanique selon l'invention présente un substrat de base (81) sur lequel une lame flexible d'induit (41) fixée d'un seul côté, comprenant un contact mobile (8) est structurée de sorte qu'elle soit courbée, au repos, de façon élastique, en s'éloignant du substrat. Un contact fixe (7) coopérant avec le contact mobile est également disposé sur une lame flexible de contact fixe (42) courbée également en s'éloignant du substrat de base, de sorte que les deux lames flexibles se font face avec leurs extrémités libres et de sorte que le contact mobile (8) recouvre le contact fixe. Cette disposition des contacts sur deux lames flexibles permet d'obtenir une surcourse relativement importante au niveau des contacts, en dépit d'un faible parcours d'induit possible dans le cas d'un entraînement électrostatique, ce qui permet de produire une force de contact suffisante.

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