Detector Cooler Integrated System for Silent Thermal Imaging Cameras

Abstract

The present invention proposes a detector refrigerator integrated system for a silent infrared thermal imager, including an infrared detector refrigerator, a silent mechanism and a buffer support assembly; the silent mechanism is arranged at the bottom of the infrared detector refrigerator, and the silent mechanism includes An upper loading plate, a buffer layer, a heat conducting structure and a lower loading plate; the buffer layer is filled between the upper loading plate and the lower loading plate; The upper heat conduction center column is fixed on the upper loading plate, the lower heat conduction middle column is fixed on the lower load plate, there is a gap between the upper heat conduction middle column and the lower heat conduction middle column, and the heat conduction oil layer is filled in the gap; the infrared detector refrigerator The coolant pipe is fixed by the buffer support assembly. The invention realizes high-efficiency vibration isolation of the infrared detector refrigerator, and reduces vibration noise.

Description

technical field [0001] The invention relates to the technical field of infrared sensors, in particular to a detector refrigerator integrated system for a silent infrared thermal imager. Background technique [0002] Both military and civilian applications have put forward increasingly stringent requirements on the size, weight and power consumption of thermal imaging cameras. This makes the thermal imaging camera continue to develop in the direction of small size, low weight, and low power consumption. For cooled thermal imaging cameras, reducing the size means adopting a more compact cooled infrared detector structure, which puts forward higher requirements on the performance of the refrigerator. While reducing the volume of the refrigerator, it is required that the refrigerator has a higher cooling rate. Increasing the cooling rate brings a direct problem, that is, the vibration frequency of the refrigerator is increased, which in turn brings greater vibration and noise ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a detector refrigerator for a silent infrared thermal imager that can realize high-efficiency vibration isolation and reduce vibration noise in view of the defect that the infrared thermal imager has relatively large vibration noise in the prior art integrated system

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