The battery car controller is the battery car's CPU, which controls the start, operation, advance and retreat, speed, stop of the battery car motor and other electronic components of the battery car. It is like the brain of the battery car and is an important component of the electric car.

Picture: Air tightness test product-battery car controller

Once water enters the battery car controller, it will cause the battery car to short-circuit, making the electric car unable to continue riding.Therefore, many battery car manufacturers now waterproof the battery car controller to ensure that the battery car controller can reach the IP67 waterproof level.The battery car controller that has been waterproofed needs to be tested to see if it can meet the waterproof performance required by the manufacturer. Currently, manufacturers generally use an air tightness leak detector to test the battery car controller.Waterproof testing.This time, Hairis Technology will share with you the waterproof testing methods and principles of battery car controllers.

Picture: Air tightness detector + testing tooling

First of all, it is necessary to determine whether a mold needs to be made based on the appearance characteristics of the product. From the appearance of the battery car, it can be seen that the product does not have any inflation holes.For test products without inflation holes, there is no way to test the air tightness of the product through direct inflation. In this case, it is necessary to make a copy mold according to the test product, and inflate the mold to achieve the purpose of testing the air tightness of the product. This method of testing the product by sealing the mold is an indirect detection method.

Picture: Testing mold

After making a profiling mold according to the product, it is necessary to set the corresponding test parameters for the product.The test parameters of the product need to be set according to the customer's waterproof level requirements.The customer requires the waterproof level of the product to be IP67. The so-called IP67 means that the product will not be damaged by water when placed under pressure of no more than one meter of water depth.The pressure of one meter of water depth is equivalent to the air pressure of 10.5KPA.Therefore, for products tested with IP67 waterproof level, the generally used test pressure is 10.5KPA.

According to the customer's air tightness testing requirements, as long as the product leakage value does not exceed 0.05kpa, the product will meet the requirements.As long as the test pressure of such a product can reach 10.5kpa and the leakage value does not exceed 0.05kpa, the instrument will automatically determine that the product is a good product.

The picture below shows the battery car controller test parameters set for customers.

Figure: Air tightness testing parameters

Features of Hairis Air Tightness Tester

1. Strong stability: Testing equipment has guaranteed the product quality of more than a thousand factories and has been widely recognized by customers.

2. High accuracy: The test accuracy can reach 1Pa, and this test accuracy has obtained international patent protection.

3. Adopt the latest HI-OS 2.0 system, with friendly interface, simple operation and multiple humanized operations.

4. Using compressed air as the test medium, complete non-destructive testing.

5. The test process is fast, the test results are objective, and the product can be automatically judged as OK or NG.

6. Can be connected to a host computer and scanner to realize intelligent testing, and has the function of automatically exporting data.

Hairis Technology has tested various controllers, mainly new energy vehicle controllers, electric vehicle controllers, battery vehicle controllers, etc.If you are interested in Hairis Technology air tightness testing equipment, you can call Hairuisi Technology for detailed consultation.

Related reading:What are the requirements for battery pack air tightness testing and power battery waterproof testing? ？