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Device and method for detecting leak of upper cover of power battery

A power battery and battery technology, which is applied in the direction of detecting the appearance of fluid at the leakage point and using liquid/vacuum degree to measure the liquid tightness, etc., can solve the problems of complex structure of the leak detection device and poor effectiveness of leak detection, and achieve the goal of measuring Good leakage effect, low cost, simple and reasonable structure design

Inactive Publication Date: 2012-01-04
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the structure of the leakage detection device on the upper cover of the power battery is relatively complicated, and the effectiveness of leakage detection is poor

Method used

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  • Device and method for detecting leak of upper cover of power battery
  • Device and method for detecting leak of upper cover of power battery
  • Device and method for detecting leak of upper cover of power battery

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] like figure 1 As shown, a vertically arranged cylinder 2 is fixed on the support 1, and the lower end of the cylinder rod 7 of the cylinder is connected with a battery upper cover sealing head 4, and the battery upper cover sealing head is connected with an inflation valve 6, and is sealed on the battery upper cover. The lower end of the head has an air outlet. The battery upper cover bracket 3 is provided below the battery upper cover sealing head, such as figure 2 As shown, the battery upper cover bracket is composed of two brackets, and an air storage tank 5 is formed between the two brackets.

[0015] When leak testing, place the leak testing device in a station box filled with liquid (such as alcohol or water), place the upper cover of the power battery on the battery upper cover bracket 3, and operate the cylinder ventilation valve to make the cylinder rod 7 Move downward until the sealing head 4 of the battery cover is tightly pressed against the explosion-pr...

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Abstract

The invention relates to a device and a method for detecting leak of an upper cover of a power battery. The device is characterized in that a vertically-arranged air cylinder is fixed on a support, the lower end of an air cylinder lever is connected with a plugging head for upper battery covers, and a bracket for upper battery covers is arranged below the plugging head for the upper battery covers; and the plugging head for the upper battery covers is connected with an air charge valve, and the lower end of the plugging head for the upper battery covers is provided with an air outlet. The method comprises the following steps: in the process of leak detection, placing the upper cover of the power battery on the bracket for upper battery covers, and operating an air charge valve of the air cylinder, so that the cylinder lever of the air cylinder moves downwards until the plugging head for upper battery covers is pressed against a connector of an explosion-proof valve of the upper cover of the power battery; and starting the air charge valve so as to carry out leak detection on the upper cover of the power battery.

Description

technical field [0001] The invention relates to a leak detection device and method for a power battery upper cover. Background technique [0002] In the prior art, the structure of the leakage detection device on the upper cover of the power battery is relatively complicated, and the effectiveness of leakage detection is relatively poor. Contents of the invention [0003] The object of the present invention is to provide a device and method for detecting leakage of the upper cover of the power battery, which can effectively realize the leak detection of the upper cover of the power battery. [0004] Based on the same inventive concept, the present invention has two independent technical solutions: [0005] 1. A leak detection device for the upper cover of the power battery. A vertical cylinder is fixed on the bracket. The battery upper cover bracket; the battery upper cover sealing head is connected with an inflation valve, and an air outlet is opened at the lower end of...

Claims

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Application Information

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IPC IPC(8): G01M3/06
Inventor 过磊张海军
Owner CHERY AUTOMOBILE CO LTD
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