Tool for detecting airtightness of upper and lower shells of new energy vehicle battery packs

A technology for air tightness detection and new energy vehicles, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, etc., can solve the problems of inconvenient detection methods, etc., and achieve easy movement and improved The effect of detection accuracy

Inactive Publication Date: 2019-04-02
WUHU POWER TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the airtightness test of the battery pack is usually carried out by means of visual inspection, or the battery pack is ventilated and pressurized by a hand-held ventilation and pressure device, but the above-mentioned detection method is very inconvenient

Method used

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  • Tool for detecting airtightness of upper and lower shells of new energy vehicle battery packs

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Embodiment Construction

[0013] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0014] Such as figure 1 As shown, this embodiment provides a new energy vehicle battery pack upper and lower shell air tightness detection tool, including a base 1, positioning mechanisms 2 are provided on both sides of the base 1, and a clamping mechanism 3 is provided around the base 1 , the upper end of the base 1 is provided with a battery pack upper limit mechanism 4 and a battery pack lower limit mechanism 5, the upper end of the base 1 is provided with a sealing silica gel 6, and the bottom of the base 1 is provided with a ventilating port, and the ventilating and pressurizing device is ventilated Ventilate and pressurize the tooling through the mouth, and monitor the pressure drop...

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Abstract

The invention provides a tool for detecting airtightness of upper and lower shells of new energy vehicle battery packs. The tool comprises a base; positioning mechanisms are arranged on two sides of the base; a clamping mechanism is arranged around the base; a battery pack upper limiting mechanism and a battery pack lower limiting mechanism are arranged beside the upper end of the base; sealing silica gel is arranged at the upper end of the base; an air vent is formed in the bottom of the base; a ventilation and pressurization device carries out ventilation and pressurization on the tool through the air vent; and pressure drop data monitoring is carried out on the tool through an airtightness detector. According to the tool, upper and lower shells are positioned through the positioning mechanisms and fixed through the clamping mechanism; the ventilation and pressurization device carries out ventilation and pressurization on the tool through the air vent, and pressure drop data monitoring is carried out on the tool through the airtightness detector, so that the airtightness of the upper and lower shells can be detected; the battery pack upper limiting mechanism and the battery packlower limiting mechanism are set to improve the detection precision; and a trundle drives the base to move so that the tool can be moved conveniently.

Description

technical field [0001] The invention relates to the field of vehicle battery pack manufacturing, in particular to a tool for detecting air tightness of the upper and lower shells of a new energy vehicle battery pack. Background technique [0002] The battery pack is the main source of power for new energy vehicles. The air tightness test can effectively identify whether the battery pack will leak and the leak point, thereby preventing the short circuit of the battery pack due to air leakage and water seepage, ensuring product quality and reducing After-sales cost, improve vehicle driving safety. At present, the airtightness test of the battery pack is usually carried out by means of visual inspection, or the battery pack is ventilated and pressurized by a hand-held ventilation and pressurizing device, but the above-mentioned detection method is very inconvenient. Therefore, it is particularly important to design a tooling dedicated to the air tightness detection of the uppe...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 俞巢辉
Owner WUHU POWER TECH
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