Monitoring vidicon cooling method and structure based on thermal pressure effect

Abstract

The invention discloses a monitoring vidicon cooling method and structure based on a thermal pressure effect. The structure comprises a heat insulation shell, an inner shell, a finned tube, a lifting structure and a bottom cover. According to the monitoring vidicon cooling method and structure disclosed by the invention, gas of the finned tube is heated by solar radiation to form a thermal pressure suction effect, so that gas in an air interlayer of the shell and the inner shell in the monitoring vidicon flows integrally; therefore, the convection heat exchange effect of the wall surface of the inner shell is enhanced; the cooling effect is improved; simultaneously, due to gas flowing, the temperature of electronic devices in the interlayer and the inner shell is kept constant; and too-high temperature rising due to poor cooling in a closed state can be avoided.

Description

technical field [0001] The invention relates to a monitoring camera heat dissipation method and structure based on thermal pressure effect, and belongs to the technical field of security monitoring equipment. Background technique [0002] At this stage, the coverage of cameras used in the field of security monitoring has become higher and higher, and many of them are located in various open-air environments such as traffic intersections and tourist attractions. atmosphere. [0003] On the one hand, the use of electronic devices in the camera will inevitably generate heat, and the requirements of surveillance cameras require the camera to run for a long time, making it easier to accumulate heat. On the other hand, in an outdoor environment exposed to direct sunlight, solar radiation causes the temperature of the surveillance camera housing to rise, which in turn conducts heat to internal components. In addition, since the cavity containing electronic devices in the surveill...

AI Technical Summary

Problems solved by technology

In addition, since the cavity containing electronic devices in the surveillance camera is often completely sealed, the air flow between the interior and the outside cannot be exchanged very well, resulting in a similar greenhouse effect. Forced convection fan, but the effect of the fan is not significant because the heat exchange is still mainly limited by the heat conduction of the inner casing of the surveillance camera and the external convection heat dissipation

Under the influence of many aspects, the temperature of the internal components of the surveillance camera is too high, which affects the quality of the captured image

Under the harsh conditions of direct sunlight in summer, the temperature inside the camera can be higher than the ambient temperature by more than 15°C. Excessively high temperature may cause camera distortion and shorten the lifespan

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