A current-limiting protection device for detachable pyrotechnics resistor

Abstract

The present invention provides a current limiting protection apparatus for a detachable initiating explosive device resistor. The apparatus comprises a plug component and a tail cover component. The plug component comprises a plug housing. The tail cover component comprises an initiating explosive device resistor and a tail cover. The initiating explosive device resistor is fixedly installed in the tail cover and the tail cover component is integrally connected with the plug component through a docking structure disposed on the tail cover and the plug housing respectively. According to the technical solution provided by the present invention, the tail cover component is integrally connected with the plug component through the docking structure disposed on the tail cover and the plug housing respectively, and when the initiating explosive device resistor in the current limiting protection device is burned, the replacement of a new initiating explosive device resistor only needs the unscrewing of the tail cover component from the plug component and the replacement of the tail cover component. When the current limiting protection device is assembled, all that needs to do is the integral docking and the tight screwing of the tail cover component. This reduces the manual operation, improves the efficiency, and makes the apparatus operated more easily.

Description

technical field [0001] The invention relates to a current limiting protection device for a detachable pyrotechnics resistor. Background technique [0002] The pyrotechnic resistor is a kind of one-time use component, which is often used in the protection device. In the prior art, the current limiting protection device equipped with the pyrotechnic resistor is generally welded with the pyrotechnic resistor and the hole connector. After one printed board and the pin connector are welded on another printed board, a hole is opened in the center of the surface of each printed board and the center of the pin connector and hole connector base, and the two pieces are connected by screws, nuts and washers. The printed boards are connected together and soldered on the connector tail contact, and finally the self-made tail cover is screwed on the connector tail through threads. When the pyrotechnic resistor burns out, you need to remove the tail cover first, then remove the screws, nu...

AI Technical Summary

Problems solved by technology

This patent document solves the problem that many parts need to be disassembled when replacing the pyrotechnic resistor. When the pyrotechnic resistor is burned out, only the second printed board needs to be removed to replace the pyrotechnic resistor. However, This technical solution still has defects, that is, when replacing the pyrotechnics resistor, it is still necessary to disassemble the tail cover first, and then disassemble more fasteners to disassemble the second printed board, and it is still necessary to assemble screws when assembling , nuts, washers and other fasteners and the tail cover, the disassembly process is cumbersome and the efficiency is low

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