Thermoelectric refrigeration device for water cooling heat dissipating and air cooling heat dissipating

A thermoelectric refrigeration and air-cooling technology, applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve problems such as unusable, not widely used, complex structure, etc., and achieve the effect of simple design structure

Inactive Publication Date: 2016-02-24
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compressor refrigeration can be deeply refrigerated, and the refrigeration temperature can be much lower than -100°C, but its structure is relatively complicated and the cost is high, so it is not widely used
The advantage of liquid nitrogen refrigeration is t

Method used

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  • Thermoelectric refrigeration device for water cooling heat dissipating and air cooling heat dissipating
  • Thermoelectric refrigeration device for water cooling heat dissipating and air cooling heat dissipating
  • Thermoelectric refrigeration device for water cooling heat dissipating and air cooling heat dissipating

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specific Embodiment

[0039] Such asfigure 1 , figure 2 , image 3 As shown, it includes vacuum chamber 1, vacuum suction port 2, vacuum chamber base 3, window sealing glass 4, vacuum chamber upper cover 5, TEC cooling sheet 6, CCD chip 7, cold finger 8, temperature sensor 9, electrical Plug 10, vacuum adsorbent 11, water circulation system 12, fin radiator 13. The vacuum chamber 1 is sealed by the vacuum chamber base 3, the vacuum chamber upper cover 5 and the sealing glass 4. The vacuum chamber upper cover 5 and the vacuum chamber base are connected by flanges 17 and 18, and the middle is sealed with fluorine rubber. The sealing ring is sealed, and the window sealing glass 4 and the vacuum cavity upper cover 5 are sealed by epoxy resin sealant, or the window sealing glass 4 is directly welded on the vacuum cavity upper cover 5 by direct welding technology. The side of the upper cover 5 of the vacuum chamber is welded with a vacuum pumping port 2, which is connected with a vacuum pump and a vac...

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Abstract

The invention discloses a thermoelectric refrigeration device for water cooling heat dissipating and air cooling heat dissipating. The device comprises a vacuum chamber which is surrounded by a base and an upper cover, wherein hermetic window glass is arranged on the top wall of the upper cover; a vacuum air exhaust port is formed in the sidewall of the upper cover; a TEC (semiconductor thermoelectricity cooling) refrigerating plate, a CCD (Charge Coupled Device) chip, a cold finger, a temperature sensor, an electrical plug and a vacuum absorbent are arranged in the vacuum chamber; a water circulating system is arranged in the base; a finned heat dissipator is arranged at the lower part of the base. The device is simple in design structure, and is applicable to vacuum dewar flasks in an air cooling heat dissipating manner and a water cooling heat dissipating manner, so that a thermoelectric refrigeration dewar is applicable to various situations, and the heat dissipation manner can be flexibly used.

Description

technical field [0001] The invention relates to a photoelectric detector refrigeration technology, in particular to a thermoelectric refrigeration device for water cooling and air cooling for heat dissipation. Background technique [0002] In the field of photodetectors, many detectors are semiconductor detectors. Semiconductor detectors are particularly sensitive to temperature. Especially when detecting weak signals, it is necessary to remove the influence of temperature. For example, for scientific grade CCDs, at room temperature , the dark current will have a very large impact, and for weak signal input, the image quality will be very poor. Dark current refers to the thermal current generated when semiconductor photoelectric imaging devices work without light. Its existence will have a certain impact on the imaging quality of the photoelectric device. For example, when the dark current of the CCD device is particularly large (that is, the dark current peak), white spots...

Claims

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Application Information

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IPC IPC(8): F25B21/02
CPCF25B21/02F25B2321/003
Inventor 王坚陈杰张鸿飞王建民
Owner UNIV OF SCI & TECH OF CHINA
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