Battery Pack Air Tightness Testing Solution

Battery pack air tightness testing equipment, imported battery pack air tightness testing equipment.

The state vigorously advocates energy conservation and emission reduction, promotes the sound development of the new energy industry, and drives the energy-saving transition from traditional energy to electric power. Meanwhile, electric power-driven mobility solutions have emerged in response to the times.

With the continuous rise of the sharing economy, shared e-bikes and shared cars have become the preferred choice for travel due to their energy efficiency, environmental friendliness, convenience, and speed. As the sharing economy drives the rapid development of the e-bike industry, the power battery pack, as a core component, has seen its safety become increasingly prominent, directly affecting overall safety.

The development of battery packs requires full consideration of multiple factors, and it is necessary to learn from and absorb advanced technical experience both domestically and internationally, repeatedly verifying and optimizing the design scheme. Therefore, the design requirements for the strength, stiffness, heat dissipation, waterproofing, and insulation of the battery box are very high, which makes the design and sealing test of the battery box critically important.

Battery pack leak testing equipment is divided into four series: pressure decay test (direct pressure), differential pressure decay test (differential pressure), flow decay test, and combined pressure & flow decay test. The equipment integrates a loading and unloading module, PLC control system, customer data collection (MES) system, and bus integration (TCP/IP Modbus CAN) system, providing a one-stop leak testing solution. Its application fields include automotive, consumer electronics, daily necessities, security, and medical industries. Guangzhou Kalun is committed to providing customers with high-quality, high-precision custom leak testing equipment.

II. Parameter Settings for EV Battery Pack Air Tightness Testing

Equipment Performance Features

1. The air tightness leak test system is in the form of an integrated, movable cabinet, including an industrial PC, an air tightness tester, a standard electrical cabinet, a pressure regulating unit, a control unit, a data processing unit, test fixtures, etc.

2. The air tightness test system shall be provided with sensor calibration certificates, the leak detector's factory certificate of conformity, and the original factory precision inspection report.

3. The air tightness testing system supports communication with the MES system to enable data transmission, including program number, test status, test results, operation time, pass/fail status, etc., with no data loss during transmission. It is equipped with a USB interface and supports export of measurement programs and results.

4. The air tightness testing system is equipped with data storage, traceable data upload, and audible and visual alarm functions.

5. The air tightness test system automatically judges the measurement results. It provides indicator lights and audible alarms for pass, fail, leak, fault, and other status prompts.

6. The industrial control computer of the test system is equipped with an I/O bus control interface, and comes standard with a serial communication interface, RS-232, 2 USB ports, a network port, a printer port, a barcode reader interface, etc.

7. Pressure sensor resolution ≤0.1KPa, differential pressure sensor resolution ≤0.1Pa, test value resolution 0.001sccm.

8. Test instrument differential pressure sensor accuracy: ±(1% of reading + 1Pa).

9. Calibrate with a standard leak orifice; each air tightness tester can store at least 20 test programs.

10. The air tightness test system shall be equipped with an equivalent volume storage tank, which shall be calibrated by the test system manufacturer with a calibration report issued.

Article keywords: battery pack air leak tester, sealing test, new energy sealing test