Locking type inertia switch

A technology of inertia switch and housing, applied in the field of inertia switch, can solve the problem of unreliable contact during closing time

Inactive Publication Date: 2018-10-09
湖北三江航天红林探控有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing inertial switch adopts the structure of spring and mass block. The spring and mass are used as movable electrodes, and there is a fixed electrode separated from the movable electrode by a certain distance. When the movable electrode feels overload, the spring elongates and the mass block Collide with the fixed electrode, so as to realize the switch from disconnection to conduction state. After the mass block of this type of inertial switch hits the fixed electrode, the mass block will be bounced off, so the closing time and contact contact of this type of inertial switch are not reliable.

Method used

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0032] figure 1 It is an exploded view of a latching inertia switch according to an embodiment of the present invention, figure 2 It is a structural schematic diagram of the initial state after assembly of a latch type inertial switch according to an embodiment of the present invention. Such as figure 1 and figure 2 As shown, a latch type inertial switch includes a spring mass 1 , a magnet...

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Abstract

The invention discloses a locking type inertia switch which comprises a magnet (2), a screw (6) a spring mass block (1), a conductive column (3), a shell (4) and a cover plate (5), wherein one end ofthe spring mass block (1) is fixedly connected with the shell (4), the other end of the spring mass block (1) keeps a certain distance from the shell (4), one end of the conductive column (3) is a cylinder and is fixedly arranged in a conductive column hole in the cover plate (5) in an interference fit mode (5), and the other end of the conductive column (3) is a rectangular sheet, the cover plate(5) is fixedly installed with the shell (4) through the screw (6) to realize locking in place. According to the locking type inertia switch, when the spring mass block senses overload, the spring mass block overcomes the force resistance of the spring under the action of inertia force and the suction force of the spring mass block and the magnet until the spring mass block is in contact with theconductive column, so that the on and off of the circuit are realized, and the in-place locking function is achieved.

Description

technical field [0001] The invention belongs to the technical field of inertial switches, and more specifically relates to a locking type inertial switch. Background technique [0002] Inertial switches have a wide range of applications in aerospace, automotive electronics, and ammunition. Micro-electromechanical (MEMS) inertial switch is an acceleration sensor manufactured by micro-machining technology. It uses inertial sensitive elements to convert the acceleration load into changes in the electrode gap, and then triggers the corresponding electrical signal through the contact state between the electrodes to realize the function of distinguishing acceleration signals. Due to the advantages of small size, light weight, low energy consumption, strong resistance to high overload, strong resistance to electromagnetic interference, and easy integration with digital circuits, MEMS inertial switches are widely used in demanding environments such as industrial vibration detection,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/14
CPCH01H35/14
Inventor 李响邬学聪李禄刚
Owner 湖北三江航天红林探控有限公司
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