Vehicle-mounted main drive battery box airtightness detecting equipment

Abstract

The invention discloses vehicle-mounted main drive battery box airtightness detecting equipment. The equipment comprises a vehicle network interconnection terminal TBOX, a vehicle controller VCU, a blast pump, a drying bottle, a pressure sensor, a two-way electromagnetic valve, a main drive battery box and a relay, the vehicle network interconnection terminal TBOX is bi-directionally communicatedwith the vehicle controller VCU through a CAN communication line, and the vehicle controller VCU is unidirectionally communicated with the two-way electromagnetic valve at an I/O signal through a communication line; the pressure sensor is unidirectionally communicated with the vehicle controller VCU at an analog quantity signal through a communication line, the vehicle controller VCU controls therelay at the I/O signal through a communication line, and the relay is communicated with the blast pump through a cable; the blast pump is unidirectionally communicated with the drying bottle througha through pipeline, the pressure sensor is unidirectionally communicated with the two-way electromagnetic valve, and the two-way electromagnetic valve is bi-directionally communicated with the main drive battery box. The equipment has the advantages of being simple, reliable and low in automatic control cost, achieving vehicle-mounted automatic detection and alarm, and sending data in real time.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle battery PACK safety detection, and specifically refers to an airtight detection device for a vehicle main drive battery box. Background technique [0002] With the country's strong support and promotion of clean energy, and the great improvement of people's living standards, almost every household is equipped with a car, so the safety performance of new energy vehicles is one that people pay special attention to when choosing to buy a car. When evaluating new energy Automobile safety performance involves many safety indicators, including the detection of the airtightness of the main drive battery box. [0003] The existing equipment for airtight testing of the main drive battery box is basically composed of an external air source, a diaphragm valve, a stop valve, a pressure gauge and the tested product. Detection: Due to the large size of the existing detection equipment, no drying tre...

AI Technical Summary

Problems solved by technology

[0003] The existing equipment used for air tightness detection of the main drive battery box is basically composed of an external air source, a diaphragm valve, a stop valve, a pressure gauge and the tested product. Detection: Due to the large size of the existing detection equipment, no drying treatment system and no gas storage system, the high-pressure and high-temperature gas output by the air pump will directly contact the tested product, and the water vapor generated by it will corrode the tested product.

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