Small-size multi-channel double-normally-open and double-normally-closed micro-motion trigger mechanism and micro switch thereof

Abstract

The invention discloses a small-size multi-channel double-normally-open and double-normally-closed micro-motion trigger mechanism and a micro switch thereof, and belongs to the technical field of electrical switches. The trigger mechanism comprises a trigger assembly, a fixed contact piece set, a movable contact piece set, a compression bar reed, a top block fixedly connected with the other side of the compression bar reed, and an on-off component connected with the bottom of the top block. Two or more movable contact pieces of the movable contact piece set are arranged in parallel and are connected to the on-off component in a penetrating mode. The multiple fixed contact pieces of the fixed contact piece set are arranged corresponding to the movable contact pieces of the movable contact piece set. The on-off component can integrally drive the movable contact piece set to move towards the fixed contact piece set under the action of the compression bar reed by means of the integrally connected top block, and on-off of the circuit is realized by means of the contact of the movable contact pieces and the fixed contact pieces. Two sets of normally-open contact systems inside the microswitch are integrated on one ejector rod, so that the multi-channel synchronization precision is high. A fine adjustment elastic piece in the on-off assembly is in floating connection with an insulation block and a stop rod, so that the movement error caused by machining precision can be effectively adjusted, and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to a small-volume multi-channel double-normal opening and closing micro-motion trigger mechanism and a micro-switch thereof, which belong to the technical field of electrical switches. Background technique [0002] The micro switch is a contact mechanism with a small contact interval and a quick action mechanism, which performs a switching action with a specified stroke and a specified force. It is covered with a casing and has a drive rod on the outside. Small, hence the name micro switch, also called snap switch. Micro switches are used for automatic control and safety protection in equipment that needs to frequently switch circuits, and are widely used in electronic equipment, instruments, mines, power systems, household appliances, electrical equipment, and aerospace, aviation, ships, missiles, Tanks and other military fields have been widely used in the above fields. Although the switch is small, it plays an irreplaceable ro...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of the existing micro-opening cover with excessive thickness and volume, low utilization rate of internal space, insufficiently compact structure and small number of channels, the present invention provides a small-volume multi-channel double-normal open-close micro-trigger Mechanism and microswitch containing the trigger mechanism, the technical scheme adopted is as follows:

Images