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Battery airtightness detection tool

An air tightness detection and battery technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, can solve the problem of large volume, poor sealing of battery and detection tooling, and accuracy of detection results difficult to guarantee

Pending Publication Date: 2020-03-10
FUJIAN NANPING NANFU BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing battery air tightness testing tooling has various structures, most of which are complex and large in size. After the battery is placed in the testing tooling, the sealing between the battery and the testing tooling is poor, and the accuracy of the test results is difficult to guarantee.

Method used

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  • Battery airtightness detection tool
  • Battery airtightness detection tool
  • Battery airtightness detection tool

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Experimental program
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Embodiment Construction

[0015] The specific implementation of the battery air tightness detection tool of the present invention will be described in detail below in conjunction with the accompanying drawings:

[0016] Such as Figure 1 to Figure 6 As shown, a battery air-tightness testing tool includes a battery mounting base 1 and an inflatable block 2. The battery mounting base 1 is opened with a linear mounting hole 11 through which both ends are connected. The battery mounting base 1 is also provided with a linear mounting hole 11. A connected fracture 12, the battery mounting seat 1 on both sides of the fracture 12 is respectively provided with a first through hole 31 and a first threaded hole 32, the first through hole 31 and the first threaded hole 32 are coaxial and perpendicular to the fracture 12, one The first bolt 3 passes through the first through hole 31 and the first threaded hole 32 in turn, and is threadedly engaged with the first threaded hole 32. The inflatable block 2 is provided ...

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Abstract

The invention discloses a battery airtightness detection tool, which comprises a battery mounting seat and a gas charging block, wherein the battery mounting seat is provided with a linear mounting hole, the battery mounting seat is further provided with a fracture communicated with the linear mounting hole, two sides of the fracture are locked by first bolts, the gas charging block is provided with a ventilation hole, one end of the ventilation hole is communicated with a gas charging joint fixed on the gas charging block, the gas charging block is provided with a sealing ring on the startingend surface of the other end of the ventilation hole, the end surface, which is provided with the sealing ring, of the gas charging block faces the linear mounting hole of the battery mounting seat,and the gas charging block and the battery mounting seat are fixed by second bolts. When the airtightness of a battery is detected, one end of the battery is provided with a small hole communicated with the interior of the battery, the battery is arranged in the linear mounting hole, the gas charging block is tightly attached to the end surface, in which the small hole is formed, of the battery, then a gas is introduced, the change of air pressure in the battery is observed through a pressure gauge, and airtightness of the battery is judged according to the change of the air pressure in the battery.

Description

technical field [0001] The invention relates to the field of battery production equipment, in particular to a tool for testing battery air tightness. Background technique [0002] The service life of the battery is related to its airtightness. When the airtightness of the battery is poor, the air is easy to penetrate into the battery. The materials in the battery are affected by the moisture in the air, which will easily reduce the battery power and cause battery damage in severe cases. Therefore, , In the battery production process, after the battery is sealed, it is often necessary to take samples to test the airtightness of the battery. The test method of battery air tightness is generally to open a small hole in the sampled battery, press the gas into the battery through the small hole, and observe the change of the internal pressure of the battery by the pressure gauge. If the internal pressure of the battery increases with the injection of air , rising gradually, and ...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 常海涛吴兰熙林天生郑基能
Owner FUJIAN NANPING NANFU BATTERY
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