Airtightness detection apparatus for manufacture of power supply module

Abstract

The invention discloses an airtightness detection apparatus for manufacture of a power supply module. The airtightness detection apparatus comprises a base plate, a detection seat is installed on thebase plate, a left side of the detection seat is provided with a helium pump, a right side of the detection seat is provided with a gas outlet pipe, the helium pipe is connected with a gas inlet pipeon which a fastening clamp is mounted, the gas inlet pipe is connected with a gas ejecting pipe, a gas ejecting valve is mounted on a side face of the gas ejecting pipe, the gas ejecting pipe is connected with a dry gas pump, a gas outlet valve is mounted on the gas outlet pipe, an air pressure gauge is mounted on a side face of the gas outlet pipe, the air pressure gauge is fixedly connected withan air pressure needle, airtightness of the power supply module is detected after helium is pumped into the power supply module via the helium pump, gas in batteries is evacuated via a gas evacuatingdevice after testing operation, a water vapor-free environment is created, safety inside the batteries can be ensured, the airtightness of the power supply module can be determined via observance ofthe air pressure gauge after helium is pumped in for a fixed period of time, time needed for detection is reduced, time can be saved, all gas pipes are tightly clamped on a gas inlet opening via the fastening clamps, precise positioning can be realized, connection parts are high in airtightness, fast ventilation and venting can be realized, and high detection efficiency and precision are achieved.

Description

technical field [0001] The invention relates to the technical field of power module manufacturing, in particular to an air tightness detection device for power module manufacturing. Background technique [0002] With the continuous development of the new energy industry, the application range of batteries and power modules in various fields is becoming wider and wider. Due to the expansion of the application field, the use environment of the power module is becoming more and more complex. There are more and more cases of application in relatively harsh use environments, and the requirements for its waterproof and sealing properties are also getting higher and higher. Therefore, it is required that the airtightness detection accuracy of the power module should be high enough during production. [0003] At present, lead-acid batteries, etc. need to be tested for air tightness to ensure that the battery can withstand a certain positive or negative pressure without breaking or ...

AI Technical Summary

Problems solved by technology

This detection method is complicated to operate and has a large workload. At the same time, the battery must be moved in and out, resulting in high labor intensity, tedious labor and low efficiency. The existing methods have the following shortcomings and problems:

The disadvantages of this kind of equipment are inconvenient operation, inaccurate positioning, difficult to control the force of the cylinder, easy to damage the structure of the battery during detection, difficult to perform accurate and large-scale battery air tightness detection, and the detection speed is slow

[0006] (3) Most of the existing power module air tightness detection devices pass air into the battery for testing, but after the moist air in humid weather is passed into the battery, it is easy to chemically react with the internal components of the battery, thereby sealing the inside of the battery. Space corrosion, and there is no exhaust device after ventilation, the detection gas remaining in the battery for a long time will also cause chronic corrosion to the battery

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