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Flashlight tail cap assembly

A tail cap and torch technology, applied in the field of lighting, can solve the problems of affecting normal use and the torch light going out

Active Publication Date: 2018-05-08
SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The button cap made of silicone has a certain degree of elasticity. When the tail cover assembly is subjected to external impact, the button cap will be compressed and deformed, causing the connection between the circuit board and the tail cover to be out of contact for a moment, which will cause the flashlight to go out instantly, affecting normal use.

Method used

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  • Flashlight tail cap assembly
  • Flashlight tail cap assembly
  • Flashlight tail cap assembly

Examples

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0022] Please also refer to Figure 1 to Figure 3 , a torch tail cap assembly 100 provided in an embodiment of the present invention, the torch tail cap assembly 100 includes a tail cap 10, a button cap 20, a tail cap insert 30, an elastic member 40, a circuit board 50, a spring 60, a copper cap 70, pressing plate 80 and pressing ring 90. The button cap 20 , the tail cover insert 30 , the elastic member 40 , the circuit board 50 , the spring 60 , the copper cap 70 , the pressure plate 80 and the pressure ring 90 are fixed in the tail cover 10 sequentially.

[0023] The tail cap 10 is made of conductive material, and the inner wall 11 of the tail cap 10 includes an annular flange 12 extending along the circumferential direction. In this embodiment, the tail cap 10 has a cylin...

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PUM

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Abstract

A flashlight tail cap assembly, the flashlight tail cap assembly includes a tail cap, a button cap, a tail cap insert, an elastic member and a circuit board, the tail cap is made of a conductive material, the key cap, the tail cap insert , the elastic member and the circuit board are sequentially fixed in the tail cover, the button cap is made of elastic material, the tail cover insert is made of insulating material, and the inner wall of the tail cover includes a ring-shaped protrusion extending in the circumferential direction. The circuit board includes a bottom surface, the bottom surface faces the tail cover insert, the bottom surface includes a ring electrode, the ring electrode corresponds to the ring flange, and the elastic member is made of elastic and conductive material, the elastic member is clamped between the ring electrode and the ring flange. In the present invention, a conductive elastic piece is added between the circuit board and the ring flange of the tail cover, and the good electrical connection between the circuit board and the ring flange of the tail cover is always maintained through the elastic deformation of the elastic piece.

Description

technical field [0001] The invention relates to the lighting field, in particular to a torch tail cover assembly. Background technique [0002] A flashlight is a hand-held electronic lighting tool. A typical torch has a battery-powered bulb, focusing reflector, and handle-style housing for hand-held use. [0003] In order to waterproof the tail cap of the existing flashlight, a button cap made of silica gel is usually installed at the bottom of the tail cap, and the circuit board is installed on the button cap and is electrically connected with the tail cap. The button cap made of silicone has a certain degree of elasticity. When the tail cover assembly is subjected to external impact, the button cap will be compressed and deformed, causing the connection between the circuit board and the tail cover to lose contact for a moment, which will cause the flashlight to go out instantly, affecting normal use. Contents of the invention [0004] The object of the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V21/002F21V23/06
Inventor 周明杰吴银娥
Owner SHENZHEN OCEANS KING LIGHTING ENG CO LTD