A flexible installation structure of a thermoelectric cooler
A thermoelectric cooler and installation structure technology, applied in the field of heat dissipation, can solve problems affecting the working efficiency of thermoelectric coolers, damage and failure of the cooler, and achieve the effects of good consistency, good contact, and reduced contact thermal resistance
Active Publication Date: 2019-03-05
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology
As far as the performance of the current thermoelectric cooler is concerned, it can meet the application requirements of most products, but if there is no effective installation method, it will inevitably affect the working efficiency of the thermoelectric cooler
On the other hand, the large temperature gradient formed during the operation of the refrigerator will inevitably cause a large thermal stress near the refrigerator; Under low conditions, thermal stress may cause physical damage to the cooler, leading to its failure
Method used
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Embodiment Construction
[0029] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] Such as figure 1 and combine figure 2 and image 3 Shown is an embodiment of a flexible installation structure of a thermoelectric cooler, which includes: a device bracket 110 , a cooler 120 , a cooling frame 130 , screws 140 , a thermal insulation washer 150 and a locking nut 160 .
[0031] The heat dissipation frame 130 adopts a circular butterfly structure, and a boss for placing the refrigerator 120 is arranged in the center, and four cylindrical screw hole seats 131 are arranged around its edge, and threaded holes are arranged on the top of the cylindrical screw hole seat 131 .
[0032] The refrigerator 120 is arranged on the boss of the cooling frame 130, and the hot end of the refrigerator 120 is fixedly connected with the cooling frame 130 by welding, and forms a non-detachable whole after installation, so as to ensure the stab...
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The invention discloses a flexible mounting structure for a thermoelectric refrigerating unit. The flexible mounting structure comprises a heat dissipation rack, the refrigerating unit arranged on the heat dissipation rack, and a component bracket which is arranged on the refrigerating unit and the heat dissipation rack. The component bracket and the heat dissipation rack are mechanically connected through a connecting mechanism and can move oppositely. The component bracket and the heat dissipation rack move oppositely to apply pressure strain on the refrigerating unit, and accordingly the refrigerating unit is clamped and fixed between the component bracket and the heat dissipation rack. The hot end of the refrigerating unit is in contact with the heat dissipation rack, and the cold end of the refrigerating unit is in contact with the component bracket. By quantizing pretightening force of screws installed between the component bracket and the heat dissipation rack and controlling pressure borne by the refrigerating unit after the refrigerating unit is assembled, mounting reliability of the refrigerating unit is ensured, and consistency of a mounting process is good.
Description
technical field [0001] The invention relates to a heat dissipation technology applied to a stand-alone detector of space optical measurement, in particular to a flexible installation structure of a thermoelectric cooler. Background technique [0002] The performance of a space optical measurement stand-alone machine is often affected by the orbital thermal environment, especially when the temperature rises due to factors such as solar radiation and earth infrared radiation, the image noise of the detector increases correspondingly, which seriously affects the imaging quality. Therefore, many space photoelectric products adopt active temperature control technology based on thermoelectric coolers to reduce dark current noise and improve the signal-to-noise ratio of the system. As far as the performance of the current thermoelectric cooler is concerned, it can meet the application requirements of most products, but if there is no effective installation method, it will inevitabl...
Claims
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IPC IPC(8): F25D19/00F25B21/02
CPCF25B21/02F25D19/00
Inventor 吴永康胡雄超王燕清杜伟峰董时
Owner SHANGHAI AEROSPACE CONTROL TECH INST