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Air adding device and method for air tightness detection of battery box

A technology of air tightness detection and gas filling device, which is applied in the direction of liquid tightness measurement using liquid/vacuum, which can solve the problems of slowing down the process, reducing detection efficiency, and a lot of time, so as to shorten the time of gas filling, The effect of simplifying the gas filling process and speeding up the production process

Pending Publication Date: 2018-09-21
WM SMART MOBILITY (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of realizing the invention, the inventor found that the above-mentioned test method has some shortcomings: first, the volume of the battery box is relatively large, and the amount of air passing through the socket is very small, which requires a lot of time to add gas to the box, which reduces the detection capacity. Efficiency slows down the actual production process; second, the plug interface only provides gas channels, the gas filling speed and volume of the battery box cannot be controlled, and the air pressure value in the battery box cannot be adjusted accurately

Method used

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  • Air adding device and method for air tightness detection of battery box
  • Air adding device and method for air tightness detection of battery box
  • Air adding device and method for air tightness detection of battery box

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Embodiment Construction

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words " "Inside" and "outside" respectively refer to the direction toward or away from the geometric center of a specific component. They are relative concepts, so they may change accordingly according to their different positions and different usage states. Accordingly, these or other directional terms should not be construed as limiting terms.

[0026] figure 1 Schematic diagram of the structure of the air-tightness detection gas filling device for the battery box provided by the optional embodiment of the present invention, figure 2 for figure 1 top view of image 3 for figure 1 bottom view. Such as Figure 1 to Figure 3 As shown, the present invention provides a gas-filling device for testing the airtightness of a battery box, which includes...

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Abstract

The invention discloses an air adding device and method for air tightness detection of a battery box. The air adding device for the air tightness detection of the battery box comprises a battery box which is in sealed arrangement and further comprises an air adding machine. The air adding machine comprises an air inlet port and an air outlet port, and an adjusting member for adjusting excessive air amount is arranged between the air inlet port and the air outlet port. The air inlet port is for connecting an air source. The air inlet port is located outside the battery box. The air outlet portextends into the battery box. The outer side wall surface of the air outlet port is in sealed connection with the battery box. The air adding method for the air tightness detection of the battery boxis used to add air to the battery box. The air addling device and method provided by the invention for the air tightness detection of the battery box shorten the air adding time, increase the efficiency of the air tightness detection of the battery box, accelerate the actual production process, effectively control the speed of air adding, and accurately control the pressure value of the battery box.

Description

technical field [0001] The invention relates to the technical field of battery pack detection, in particular to a battery box air tightness detection gas filling device and method. Background technique [0002] The battery pack is a key component of an electric vehicle. The battery pack is placed in the battery box. The airtightness of the battery box is related to the safety of the electric vehicle and the life of the battery pack. Testing the airtightness of the battery box is an important part of the safety inspection of electric vehicles. important part of . [0003] In the prior art, the airtightness of the battery box is generally detected by adding gas to the inside of the battery box to make the air pressure inside the battery box greater than the outside air pressure, and detecting whether there is gas leaking from the battery box. Specifically, seal the upper cover of the battery box, leave one socket as an air inlet, and seal all the other sockets, use a baromete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 贾倩
Owner WM SMART MOBILITY (SHANGHAI) CO LTD
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