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A battery pack air tightness testing device

A technology for air tightness detection and battery pack, applied in the field of detection, which can solve the problems of low accuracy and slow detection speed.

Active Publication Date: 2021-09-10
山东奥扬新能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when testing the air tightness of the battery pack, it is not convenient to perform variable multi-precision measurement according to the degree of air leakage of the battery pack, and the detection speed is slow and the accuracy is low.

Method used

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  • A battery pack air tightness testing device
  • A battery pack air tightness testing device
  • A battery pack air tightness testing device

Examples

Experimental program
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Embodiment 1

[0026] see Figure 1-5 , a battery pack air tightness detection device, comprising a base 1, the top of the base 1 is fixedly connected to a support column 2, and the top of the support column 2 is fixedly connected to a top seat 3, and also includes:

[0027] The sealing placement assembly arranged on the top of the top seat 3 is used to seal the external space of the battery pack, and the sealing placement assembly includes a placement mechanism and a displacement mechanism, and the displacement mechanism drives the placement mechanism to open or close;

[0028] The detection box 8 is arranged on the top of the base 1. A first connecting pipe 9 is fixedly connected between the detection box 8 and the placing mechanism. The detection box 8 is provided with an airtightness detection component, and the airtightness detection component includes multiple sets of Differential pressure detection mechanism, and a selective air supply mechanism for the selection of multiple groups of...

Embodiment 2

[0042] see Figure 1-6 , the other content of this embodiment is the same as that of Embodiment 1, the difference is that: the outside of the detection tube 10 is provided with a scale line 11, and the end of the detection tube 10 located in the vacuum chamber 23 is provided with a buffer device 30, and the buffer device 30 Including a fixed seat 33 fixed in the detection tube 10, a slot 35 is arranged in the fixed seat 33, a buffer pressure seat 34 is inserted into the slot 35, and an elastic member 36 is fixedly connected between the buffer pressure seat 34 and the fixed seat 33 . When there is a pressure difference between the vacuum chamber 23 and the gas chamber 22 and the moving column 24 moves to the end of the vacuum chamber 23, the buffer pressure seat 34 can buffer the movement of the moving column 24. When the moving column 24 collides with the detection tube 10, its damaged.

[0043] Wherein, the elastic member 36 may be a spring or an elastic sheet, and the buff...

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Abstract

The invention discloses a battery pack air tightness testing device, which relates to the technical field of testing, comprising a base, the top of the base is fixedly connected to a support column, and the top of the support column is fixedly connected to a top seat, and further includes: The sealing and placing assembly is used to seal the external space of the battery pack. The sealing and placing assembly includes a placing mechanism and a shifting mechanism. The shifting mechanism drives the placing mechanism to open or close; A second connecting pipe is fixedly connected between the boxes, and an airtightness detection assembly is arranged in the detection box, and the airtightness detection assembly includes multiple sets of differential pressure detection mechanisms, and a set of pressure differential detection mechanisms for selecting and using Select the air supply mechanism. The present invention can seal and place the outside of the battery pack and realize low-pressure or vacuum treatment by setting the sealing placement component, and can perform multi-precision detection of air leakage on the battery pack by setting the airtightness detection component, with high detection accuracy and good detection effect.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a battery pack air tightness detection device. Background technique [0002] In recent years, energy issues have become a global concern, and the development of new energy has become an inevitable trend in the automotive industry. Power batteries, which are the power source of power vehicles, have become the focus of the new energy vehicle industry. The sealing test of battery packs for new energy vehicles also As a point of concern, the sealing and waterproof performance of new energy battery packs need to reach a certain level. [0003] At present, when the air tightness of the battery pack is detected, it is inconvenient to perform variable multi-precision measurement according to the degree of air leakage of the battery pack, and the detection speed is slow and the accuracy is low. SUMMARY OF THE INVENTION [0004] The present invention provides an air-tightness detectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/40
CPCG01M3/40
Inventor 白江坤李晓王国营范晖王小龙
Owner 山东奥扬新能源科技股份有限公司
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