一种红外探测器杜瓦和制冷机冷指的耦合机构及装配方法
The coupling mechanism of the cold finger sleeve, sealing plate and thermal grease reservoir shell, and the lever mechanism of spherical protrusions and pits realize automatic compensation of thermal grease, which solves the problem of thermal grease pumping out and improves the coupling reliability and temperature stability of infrared detector and refrigerator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AEROSPACE DONGFANGHONG SATELLITE
- Filing Date
- 2023-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, during the coupling process between the infrared detector and the cold finger of the refrigerator, the thermal grease is easily "pumped out" during the temperature rise and fall of the cold finger, resulting in a decrease in thermal conductivity and making it impossible to guarantee the stability of the detector's low-temperature operating temperature.
The coupling mechanism of the cold finger sleeve, sealing plate and thermal grease reservoir shell is adopted. Through the cooperation of spherical protrusions and pits, a lever mechanism is formed to realize the automatic compensation of thermal grease, prevent thermal grease from being pumped out, and ensure that the thermal grease reservoir is full.
It effectively avoids the pumping out of the thermal grease, realizes the automatic compensation function of the thermal grease, improves the integrated coupling reliability of the infrared detector and the refrigerator, and ensures the stability of the detector's low-temperature operating temperature.
Smart Images
Figure CN116972978B_ABST