Method for rapidly detecting sealing performance of battery box

A battery box, sealing technology, applied in primary battery use/repair, battery/battery leakage test, secondary battery repair/maintenance, etc., can solve the problems of high detection cost, low efficiency, high IP67 cost, and reduce detection cost, improve work efficiency

Inactive Publication Date: 2016-07-27
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Abstract
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Problems solved by technology

This method has the following disadvantages: First, the efficiency is low, and the entire inspection is often destroyed because a small part is not fixed, and multiple repeated inspections are usually required; s

Method used

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  • Method for rapidly detecting sealing performance of battery box

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Embodiment Construction

[0016] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 Shows the principle diagram of the inflator device used for testing the sealing of the battery box in the method of the present invention. The inflator device includes a pressure gauge 1, a control switch 2 and a hose 3 for connection. The air nozzle 4 is provided at the connection of the air source 6, which can quickly dock the inflator with the air inlet of the battery box, and the inflator with the external air source, to ensure that the inflator does not leak during the air intake and pressure maintaining stages, and improve work efficiency. The pressure gauge 1 is used to display the current pressure state of the battery box, the control switch 2 can control the closed state of the compressed air intake, when the control switch 2 is turned on, the compressed air flows into the battery box 5 through the hose 3, and the control...

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Abstract

The invention provides a method for rapidly detecting sealing performance of a battery box. The method comprises the following steps of firstly, sealing the battery box to be detected, applying an auxiliary detection liquid for detecting an air leakage position onto a box body of the battery box to be detected; secondly, pressurizing the battery box to be detected by an inflation device, maintaining the pressure of the battery box to be detected, calculating an attenuation indication value changing range of a pressure value of the battery box to be detected, and judging whether the sealing performance of the battery box to be detected is qualified or not; and finally, judging an accurate position of air leakage of the battery box by observing a bubble out state of the auxiliary detection liquid. By the method, the detection cost can be greatly reduced, the air leakage position of the battery box can be rapidly judged, and the working efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a method for quickly detecting the sealing performance of a battery box. Background technique [0002] At present, the power lithium battery industry requires high sealing of the battery box, which generally needs to meet the requirements of IP67, and the IP67 sealing test needs to put a heavy object in the battery box, tighten the screws as a whole, and then hoist the battery box into the pool for a certain period of time After that, use the aerial crane to lift out the battery box, remove the screws one by one, open the battery box cover, and observe whether there is water stains in the battery box. This method has the following shortcomings: First, it is low efficiency, often because a small part is not fixed well, the entire test is destroyed, usually multiple repeated tests; Second, the cost of testing IP67 once is high, caused by multiple repeated tests Higher inspect...

Claims

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Application Information

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IPC IPC(8): H01M6/50H01M10/42
CPCH01M6/5083H01M10/4228Y02E60/10
Inventor 谢明明
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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