Sensor airtightness and liquid injection verification method
By conducting single-factor verification of the airtightness of the connection between the sensor's circuit board and the hollow cavity, as well as the airtightness of the liquid injection port, the reliability and stability issues of sensor airtightness and liquid injection verification were resolved, thereby improving the sensor's detection performance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUIZHOU DESAY INTELLIGENT ENERGY STORAGE CO LTD
- Filing Date
- 2026-03-09
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the airtightness and liquid injection verification of sensors failed to verify multiple influencing factors individually, which made it impossible to identify the independent influence of each factor, making it difficult to locate the problem and affecting the reliability and stability of the airtightness and liquid injection verification results.
The airtightness of the connection between the sensor's circuit board and the hollow cavity, as well as the airtightness of the liquid injection port, were verified sequentially. A helium mass spectrometer was used to detect the gas leakage rate, and different liquid injection methods were combined to verify whether the liquid was fully injected, thus ensuring airtightness and the effectiveness of the liquid injection.
It enables rapid problem localization, improves the accuracy and reliability of airtightness and liquid injection verification, ensures the detection performance and structural stability of the sensor, and provides traceable evidence.
Smart Images
Figure CN122409080A_ABST