The development of new energy vehicles has led to the rise of the domestic battery industry.

The battery cells and battery modules are the two important parts of the battery.

What we want to know today is about the components of the battery module——Top cover air tightness testing。

The module is the bridge connecting the battery cell and the battery pack. It not only has many characteristics of the battery cell, but is also related to many characteristics of the battery pack. They are organically combined through chemical, mechanical, thermal, electronic and electrical aspects to form a battery system with the required functions.

Therefore, the battery mold has high sealing requirements. Otherwise, it will easily cause leakage and damage, jeopardizing driving safety.

Below, Hirays Technology will show youSquare battery top cover air tightness testcase.

The customer requires the top cover of the battery module to withstand a pressure of 1000Kpa

Air tightness testing equipment: HC classic series air tightness detector

Testing method: Based on the material and structure of the battery module top cover, we design the corresponding mold so that it will be in a closed cavity during testing.

Place the top cover of the square battery module into the mold for testing.The test pressure is 1000kpa, and the maximum allowable leakage is 100pa. The air intake time is 10s, the pressure stabilization time is 30s, the test time is 5s, and the deflation time is 5s.

Hirays HC classic seriesAir tightness detector

• All electrical interfaces are rear-mounted to facilitate on-site wiring. The rear-mounted interfaces include power interface, USB interface, 25PIN I/O interface, 485 interface, ground wire interface and nameplate;

• The air tightness testing equipment is stable and accurate, reducing the labor intensity of factory debugging personnel;

• It can improve the product air tightness test yield rate to 99.8%;

• It can provide early-stage small batch on-site testing, which can quickly improve the production process and speed up the project progress;

• Worry-free after-sales service, with a 24-month warranty;

• More competitive prices ensure higher returns for the overall project;

• Local technical support, 4-hour door-to-door service within the province, and 24-hour service outside the province.

1. 17° best human-computer interaction viewing angle,reduceOperator fatigue from long-term use;

2. Equipped with patentIVT pneumatic sealing valve island, ensuring the stability of long-term use;

3. HI-OS operating systemIt comes with 2 pressure test forms and 8 basic judgment methods, which can be combined into more than 20 test functions;

4. softwareautomatic compensationThe temperature rise caused by the long-term operation of the solenoid valve brings test differences;

5. Provide small batch testing services in the early stage of new product development, which canBring samples to our company for on-site verificationIs the waterproofing process reliable?

6. VariousAdvanced parameter function to realize complex test requirements, such as automatic test, automatic zero reset before test, and OK/NG display for each subroutine;

7. Direct pressure, differential pressure, high-precision, and flow-type instruments can be selected. The direct-pressure instrument comes standard with an American Fairchild pressure regulating valve to improve test pressure stability;