Application Case of Dalian Leak Testing Machine in New Energy Vehicle Battery Cooling System

Application Case of Dalian Leak Testing Machine in New Energy Vehicle Battery Cooling System

With the rapid development of new energy vehicles, the reliability and sealing of battery cooling systems have become very important. The leak testing machine plays a crucial role in ensuring the quality of the cooling system for new energy vehicle batteries. The following is an application case of Dalian leak testing machine in the battery cooling system of new energy vehicles.

1、 Case background

A certain new energy vehicle manufacturer needs to conduct strict leakage testing on the battery cooling system during the production process to ensure the temperature stability and safety of the battery during operation. The battery cooling system consists of multiple components such as cooling pipes, radiators, water pumps, and water valves. Any leakage from any component can cause the battery to overheat, affecting its lifespan and even leading to safety accidents.

2、 Selection and application of leak testing machine

Selection of leakage testing machine type

The manufacturer has chosen a high-precision differential pressure leak testing machine. The differential pressure leak testing machine determines whether there is a leak by comparing the pressure difference between the tested object and the standard reference object. It has the characteristics of high detection accuracy and good stability, and is very suitable for testing components such as battery cooling systems that require extremely high sealing performance.

Testing process

Installation and connection: Assemble the various components of the battery cooling system according to the design requirements and connect them to the testing interface of the leak testing machine. Ensure tight connection and no leakage.

Inflation and stabilization: The leak testing machine injects a certain pressure of dry and clean gas into the battery cooling system, and then maintains it for a period of time to stabilize the pressure inside the system.

Differential pressure detection: After the pressure stabilizes, the leak testing machine starts measuring the pressure difference between the tested system and the standard reference material. If there is no leakage in the system, the pressure difference will remain within a small range; If there is a leak, the pressure difference will change with the size of the leak.

Data analysis and judgment: The control system of Dalian leak testing machine will analyze the measured pressure difference data. According to the preset leakage standards, if the pressure difference exceeds the allowable range, the leak tester will determine that there is a leak in the battery cooling system; On the contrary, it is considered that the system has good sealing performance.

Test results and processing

In the actual testing process, the leak testing machine can quickly and accurately detect whether there is a leak in the battery cooling system. For systems judged to have leaks, staff will further inspect and repair the corresponding components based on the leak location information provided by the leak testing machine. After repair, the system will conduct a leak test again until it meets the sealing requirements.

3、 Application effect

Improve product quality

By using a leak testing machine for strict leak detection, the new energy vehicle manufacturer effectively ensures the sealing of the battery cooling system, improving the quality and reliability of the product. This helps reduce battery failures caused by cooling system leaks, extend battery life, and improve the overall performance of new energy vehicles.

lower production cost

Although the purchase and use of leak testing machines require a certain cost, early detection and resolution of cooling system leaks can avoid recall and repair costs caused by product quality issues. At the same time, the automated detection function of the leak testing machine improves production efficiency, reduces manual detection errors and costs.

Enhance market competitiveness

A high-quality battery cooling system helps improve the safety and performance of new energy vehicles, enhancing consumer trust and satisfaction with the product. This has enabled the manufacturer to stand out in fierce market competition, increasing the market share and brand influence of its products.

In summary, the application of Dalian leak testing machine in the cooling system of new energy vehicle batteries provides important guarantees for the safe and reliable operation of new energy vehicles. By selecting the appropriate type of leak testing machine and testing process, new energy vehicle manufacturers can effectively improve product quality, reduce production costs, enhance market competitiveness, and promote the healthy development of the new energy vehicle industry.