Planar multi-layer inertia switch

Abstract

The invention discloses a planar multi-layer inertia switch. The planar multi-layer inertia switch comprises a shell (4), a partition plate (3), a spring mass block (1) and electrode parts (2), wherein the partition plate (3) is arranged in a groove (402) in a matching way, the spring mass block (1) comprises a planar spring (101), a mass block (102) and a cylinder (103), the electrode parts (2) are arranged in through holes in the partition plate (3), and a wire (203) is welded with a groove part of each electrode part (2) and penetrates through a through hole (405) of the shell (4). In the planar multi-layer inertia switch, the spring mass block collides with the electrode parts along a sensitive direction of the spring mass block when external acceleration is applied to the inertia switch, so that connection and disconnection of an external circuit are achieved; and switch conversion under different overload threshold conditions can be achieved by adjusting a spring parameter and adjusting distance between the spring mass block and the electrode parts.

Description

technical field [0001] The invention belongs to the technical field of inertial switches, and more specifically relates to a planar multilayer inertial switch. Background technique [0002] Inertial switch, also known as inertial closer or G switch, is an important inertial device for feeling acceleration in space flying objects. The bottom moves quickly along its sensitive direction and hits the fixed electrode, so as to realize the on-off of the external circuit. It needs to close the conduction circuit quickly after sensing the threshold acceleration signal, and at the same time ensure the closing time of the switch and the contact reliability of the contacts. In some products, in order to prevent accidental impact, self-locking is required after the switch is closed to ensure continuous and stable power connection of the switch, so as to ensure stable operation of the power supply and load circuit. [0003] Inertial switches are widely used in the fields of aerospace, ...

AI Technical Summary

Problems solved by technology

[0005] Most of the existing inertial switches are single-threshold inertial switches, but in the application environment where different accelerations need to be distinguished, such as fuze target recognition and earthquake monitoring, the use of single-threshold switches is limited, and the use of acceleration sensors cannot meet the requirements of low power consumption. requirements, a multi-threshold switch becomes the preferred

Images