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Constant pressure type battery anti-explosion valve

A technology of explosion-proof valve and constant pressure valve, which is applied in battery pack parts, circuits, electrical components, etc., can solve problems such as pressure control failure, battery explosion-proof parts aging, spring deterioration and failure, etc., to achieve strong pressure relief ability and service life. Long, pressure stable effect

Inactive Publication Date: 2015-09-23
KEYUAN TIANJIN POWER SUPPLY COMPONENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The pressure relief area is small, and the gas inside the battery cannot be discharged in a short time;
[0005] 2. The spring is used for pressure control. When the battery is stored for a long time, the spring is easy to deteriorate and fail, resulting in the failure of pressure control;
[0006] 3. The material of the explosion-proof parts of the battery is easy to age, become brittle and fail over time

Method used

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  • Constant pressure type battery anti-explosion valve

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Embodiment Construction

[0018] Such as figure 1 As shown, the present invention provides a constant pressure battery explosion-proof valve, including an explosion-proof valve bottom support 1, a fixed valve cover 3, and a constant pressure valve body 2 located between the explosion-proof bottom support and the fixed valve cover 3;

[0019] The shape of the explosion-proof valve bottom support 1 is hexagonal bolt shape, the explosion-proof valve bottom support 1 is connected with the battery case through threads, and the central axis of the explosion-proof valve bottom support 1 has a connected pressure relief hole 4, and the pressure relief hole 4 connects with the explosion-proof valve The bottom of the screw rod of the bottom bracket 1 penetrates to the top of the nut;

[0020] The constant pressure valve body 2 is a cylindrical EPDM valve body, and the constant pressure valve body 2 is located directly above the pressure relief hole 4 and covers the pressure relief hole 4;

[0021] The fixed bonn...

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PUM

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Abstract

The invention provides a constant pressure type battery anti-explosion valve. The constant pressure type battery anti-explosion valve comprises an anti-explosion valve base, a fixed valve cover and a constant pressure valve body arranged between the anti-explosion valve base and the fixed valve cover; the anti-explosion valve base is movably connected with a battery casing; a communicated pressure relief hole is formed at a central axis position of the anti-explosion valve base; the constant pressure valve body is arranged right above the pressure relief hole and covers the pressure relief hole. The constant pressure type battery anti-explosion valve is simple in structure, strong in pressure relief capability, stable in pressure and applicable to large-batch industrial production; and the anti-explosion valve is connected with the battery casing by virtue of a screw thread, so that mounting and dismounting are convenient.

Description

technical field [0001] The invention belongs to the battery explosion-proof field, in particular to a constant-pressure battery explosion-proof valve. Background technique [0002] The safety of the battery is the first priority for the use of the battery, and the prevention of battery explosion is the first priority of battery safety. To prevent battery explosion, it is necessary to analyze and optimize the material and internal structure of the battery, and at the same time select reliable explosion-proof components to prevent battery safety accidents under extreme abnormal conditions. [0003] Compared with traditional batteries, power batteries have higher capacity and greater energy. If a safety accident occurs, the destructive power will be stronger. Therefore, as the last hurdle to prevent battery explosion, the selection of explosion-proof components of power batteries is even more important. Although the traditional battery explosion-proof valve also has the funct...

Claims

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Application Information

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IPC IPC(8): H01M2/12H01M50/30
CPCH01M50/30H01M50/325H01M50/394Y02E60/10
Inventor 蔡福华乔旭浩崔维国
Owner KEYUAN TIANJIN POWER SUPPLY COMPONENTS