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Sealing testing apparatus of power battery pack

A power battery pack and testing device 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, etc., can solve the problems of low efficiency and complicated operation of power battery pack airtightness test

Inactive Publication Date: 2016-02-24
深蓝汽车科技有限公司
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Problems solved by technology

[0003] In the prior art, there are two methods for testing the tightness of the power battery pack: one is to test according to the corresponding test methods such as IP57 or IP67 in GB4208-2008; the other is to disassemble the power battery pack, which will affect the power battery. The sealed parts of the battery pack are tested separately according to the national standard, but both of the above two methods have the problem of complicated operation, which leads to the low efficiency of the seal test of the power battery pack

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  • Sealing testing apparatus of power battery pack
  • Sealing testing apparatus of power battery pack
  • Sealing testing apparatus of power battery pack

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Embodiment Construction

[0026] The invention discloses a power battery pack airtightness testing device, which is used to reduce the complexity of the power battery pack airtightness test operation and improve the efficiency of the power battery pack airtightness test.

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] see Figure 1-Figure 3 , figure 1 Schematic diagram of the structure of the power battery pack airtightness test device provided by the embodiment of the present invention; figure 2 Schematic diagram of the...

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Abstract

The invention discloses a sealing testing apparatus of a power battery pack. The testing apparatus comprises a gas source, an air tightness detection device, first plugging devices and second sealing devices. The gas source, the air tightness detection device, and a power battery pack are successively connected. Compressed air generated by the gas source enters the air tightness detection device through an air pipe and then enters the power battery pack through the first plugging devices. Preset time of the sealing testing apparatus is set and the air tightness detection device is started; and the air tightness detection device works within the preset time to obtain a pressure drop value or leakage rate of the power battery pack within the preset time. And then the obtained pressure drop value or leakage rate is compared with a preset standard value; when the obtained pressure drop value or leakage rate is lower than or equal to the set standard value, the sealing performance of the power battery pack meets the requirement; and if the obtained pressure drop value or leakage rate is higher than the set standard value, the sealing performance of the power battery pack does not meet the requirement.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a device for testing the tightness of a power battery pack. Background technique [0002] In order to alleviate the pollution pressure of urban automobile exhaust, electric vehicles have gradually become the new darling of cities. An electric vehicle refers to a vehicle that is powered by a vehicle-mounted power supply and uses a motor to drive the wheels. In order to ensure the driving ability of electric vehicles, electric vehicles have high requirements for batteries. For example, in order to ensure the service life and safety performance of electric vehicles, the sealing of power battery packs needs to be improved. The sealing of power battery packs needs to meet IP57 or even IP67 requirements. [0003] In the prior art, there are two methods for testing the tightness of the power battery pack: one is to test according to the corresponding test methods such as IP57 or I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 袁自力袁昌荣姚振辉苏岭贺刚
Owner 深蓝汽车科技有限公司
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