Fuel cell air tightness testing device and testing method thereof

By designing a fuel cell airtightness test device including manual pressure reducing valve, explosion-proof solenoid valve and heating belt, the problem of rapid switching of gas and temperature gas detection in the prior art is solved, and the fuel cell single battery is realized Accurate airtightness measurement improves the efficiency and safety of the test.

CN119197921AActive Publication Date: 2024-12-27XIANGYANG DAAN AUTOMOBILE TEST CENT
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Patent Information

Application Number
CN202411192313.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2024-12-27
Estimated Expiration
2044-08-28

AI Technical Summary

Technical Problem

The existing fuel cell airtightness detection device cannot quickly switch different gases for detection, and cannot use gases with temperature for detection, limiting the accuracy and efficiency of the test.

Method used

A fuel cell airtightness test device is designed, including manual pressure reducing valve, explosion-proof solenoid valve, flow controller, three-way solenoid valve and communication pipe, equipped with heating belt and temperature sensor, automatic gases are realized through the controller. Switching and temperature matching can detect the airtightness of hydrogen, air and nitrogen.

Benefits of technology

It realizes accurate measurement of the leakage of fuel cell single cells, has a wide range of applications, solves the problem of inflexible and accurate testing in the prior art, and improves the efficiency and safety of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a fuel cell air tightness testing device and a testing method thereof, and relates to the technical field of fuel cell air tightness testing, and the device comprises a first manual pressure reducing valve, a first explosion-proof solenoid valve, a first flow controller, a first three-way solenoid valve and a first communicating pipe which are connected in sequence; the middle of the first water tank is communicated with the first three-way electromagnetic valve; the third manual pressure reducing valve, the fourth anti-explosion electromagnetic valve, the second flow controller, the second three-way electromagnetic valve and the third communicating pipe are connected in sequence; the middle of the second water tank is communicated with the second three-way electromagnetic valve; the second manual pressure reducing valve is connected with the air inlet ends of the second anti-explosion electromagnetic valve and the third anti-explosion electromagnetic valve; the to-be-tested piece placing area is configured at the air outlet ends of the first communicating pipe and the third communicating pipe; the first exhaust pipe and the second exhaust pipe are arranged on one side of the to-be-tested piece placing area. The device is convenient to use, can accurately measure the leakage condition of the single fuel cell, and effectively solves the actual production problem.
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Citation Information

Patent Citations

  • Fuel cell system three-cavity pressure maintaining airtightness automatic detection device and detection method thereof

    CN111579173A

  • Hydrogen fuel cell immersion test device

    CN113075559A

  • Automatic pressure maintaining method and system for fuel cell test bench

    CN117367700A

  • Intelligent airtight test system and test method

    CN117870980A

  • Fuel cell whole vehicle three-cavity simultaneous detection blow-by detection device

    CN216050553U

Cited By

  • Explosion-proof detection device and battery production system

    CN119470066A