An automatic air tightness and insulation voltage resistance detection method for high-pressure heater finished products

By combining composite airtightness and graded insulation withstand voltage testing with product unique identification and production management system, the problems of difficulty in balancing testing accuracy and efficiency and data fragmentation have been solved, achieving high-precision defect location and production optimization, and improving the testing and production quality of vehicle-mounted PTC high-voltage heaters.

CN122042149BActive Publication Date: 2026-07-03SHANGHAI YAOSHAN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI YAOSHAN ELECTRONIC TECH CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to balance the detection accuracy and efficiency of vehicle-mounted PTC high-voltage heaters. The insulation withstand voltage test lacks a pre-protection mechanism, and the test data is disconnected from the production process parameters, resulting in difficulties in defect detection, high risk of product damage, and difficulty in data traceability.

Method used

By employing a composite airtightness test and graded insulation withstand voltage test method, combined with a unique product identifier and production management system, an automated testing process is constructed. This process includes two levels of composite airtightness test and graded insulation withstand voltage test, and a traceable data link is established to synchronize test results with production process parameters.

Benefits of technology

It improves detection accuracy and efficiency, precisely locates defects, reduces the risk of product damage, establishes a complete data link, supports production process optimization, and enhances product quality and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of heater detection, and discloses an automatic air tightness and insulation voltage resistance detection method for a high-pressure heater product, which comprises the following steps: step S1 product association and parameter calling, step S2 composite air tightness detection, step S3 graded insulation voltage resistance detection, step S4 construction of a traceable data link, and step S5 product shunting and feedback data optimization process. The two-stage composite air tightness detection and the graded insulation voltage resistance detection are cooperatively designed, the data of a production management system and a detection system are synchronized, a complete traceable data link which is deeply bound by a product, detection and a production process is constructed, the detection precision and efficiency are cooperatively improved, the nature of product defects is accurately positioned and determined, the causes of defects are quickly traced, a precise data basis is built for production process optimization, and the problems that detection and production data are split and defect tracing is difficult in the prior art are effectively solved.
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Citation Information

Patent Citations

  • Production process for PTC heating assembly

    CN110712033A

  • Method for detecting insulating property of high-voltage heater of automobile air conditioner

    CN114325108A