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A latching inertial switch

An inertial switch and locking hole technology, applied in the field of inertial switches, can solve problems such as poor contact reliability, application limitations, and inaccurate control of inertial switch closing time, so as to avoid reset, improve stability and reliability, and prevent rotation Effect

Active Publication Date: 2021-11-09
湖北三江航天红林探控有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned inertial switch can meet the needs of use to a certain extent, it also has certain defects, mainly because the above-mentioned inertial switch often bounces off the mass block after the mass block collides with the fixed electrode, resulting in inaccurate control of the closing time of the inertial switch , and the contact reliability of the contacts is poor
In addition, in some products, in order to prevent accidental impact, it is often necessary to realize self-locking after the switch is closed to ensure the continuous and stable power connection of the switch and the stable operation of the power supply and load circuit, but this uses the existing inertial switch Often difficult to achieve, so that the application of the above products is limited

Method used

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Examples

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Embodiment

[0042] The latch type inertia switch in the preferred embodiment of the present invention is as Figure 1~5 shown in . Among them, it includes a moving electrode part 1 , a static electrode part 2 , an inertia spring 3 , a housing 4 , a locking part 5 , a guide pin 6 and a casing 7 which are matched and arranged accordingly.

[0043] Specifically, the casing 4 and the outer casing 7 in the preferred embodiment are respectively in a cylindrical structure, and the cylindrical structure here can be a cylindrical structure, or a square cylindrical structure, or a cylindrical structure of other shapes. One end of the barrel is provided with blind holes of a certain depth along the axial direction, and the shape of the housing 4 corresponds to the blind holes on the outer casing 7 , so that the casing 4 can be matched and embedded in the blind holes on the outer casing 7 . Preferably, the blind hole opened at one end of the outer casing 7 in the preferred embodiment is a circular h...

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Abstract

The invention discloses a locking type inertial switch, belonging to the technical field of inertial switches, which can effectively realize the distance between the moving electrode and the static electrode when the moving electrode is not working through the corresponding arrangement of the moving electrode part, the static electrode part and the locking part, and the Stable and reliable matching with the static electrode during work; and through the corresponding setting of the locking part, it can effectively ensure that the moving electrode part can be locked in the working position by the locking part after the moving electrode and the static electrode are matched, so as to avoid the overload caused by the reduction or disappearance of the overload. The moving electrode part resets. The locking type inertial switch of the present invention has a simple structure and is easy to assemble, can effectively avoid the unstable matching of the dynamic electrode and the static electrode, realize reliable locking after the dynamic and static electrodes are matched, and the inertial switch has good working accuracy and high reliability , and the inertia switch has many cycles and long service life, can effectively reduce the use cost of the inertia switch, promote the application of the inertia switch, and has good practical value and promotion value.

Description

technical field [0001] The invention belongs to the technical field of inertial switches, and in particular relates to a locking type inertial switch. Background technique [0002] In the fields of aerospace, automotive electronics and ammunition, inertial switches have a very wide range of applications. In general, the inertial switch is closed by the reaction force or forward inertial force when the carrier hits the target, so as to realize the function of switching the circuit from disconnection to connection. Inertial switches are widely used in fuzes, especially electromechanical fuzes, and are important components for electromechanical fuzes to achieve trigger detonation or self-destruct functions on landing. [0003] At present, most of the existing inertial switches adopt a combined structure of a spring and a mass block. The spring and the mass block are used as movable electrodes, which correspond to the fixed electrodes which are separately arranged at a certain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H35/14
CPCH01H35/141H01H35/143
Inventor 李响常江
Owner 湖北三江航天红林探控有限公司
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