Explosion-proof camera cooling device

Abstract

The invention relates to an anti-explosion camera heat radiating structure. The anti-explosion camera heat radiating structure comprises a lens barrel and a camera barrel. The camera barrel is provided with a first cavity. The lens barrel comprises an inner lens barrel body, an outer lens barrel body and a second cavity, a circle of radial first airway and a circle of radial second airway are formed in the outer lens barrel body, the first airway is communicated with an inner cavity of the inner lens barrel body, and the second airway is communicated with the second cavity. A lens air inlet and a camera air inlet formed in an outer camera barrel body are communicated with corresponding communication ports. An air outlet communicated with the second cavity is formed in the lens barrel. A stop ring is arranged between the outer wall of an inner camera barrel body and the inner wall of the outer camera barrel body, the first cavity is partitioned into a first sub-cavity and a second sub-cavity by the stop ring, a second communication port is communicated with the second sub-cavity and the second airway, and a first communication port is communicated with the first sub-cavity and the first airway. The anti-explosion camera heat radiating structure has the advantages of good heat radiation performance, high reliability and the like.

Description

technical field [0001] The invention relates to a heat dissipation structure, in particular to a heat dissipation device for an explosion-proof camera. Background technique [0002] As the front-end equipment of the industrial TV system of the explosion-proof video surveillance command system, the camera is responsible for the real-time high-quality acquisition of on-site images and quick response to control commands, which plays a vital role in the operation quality of the entire system. The use of electrical equipment in environments containing explosive gas or vapor mixtures and in hazardous areas of combustible dust environments, as well as in high-temperature and high-pressure areas, must ensure that it is a certain safety explosion-proof equipment, so the security of the camera at the front end of the industrial TV system is crucial. appears to be particularly important. [0003] The heat dissipation structure of the traditional explosion-proof camera is relatively si...

AI Technical Summary

Problems solved by technology

[0003] The heat dissipation structure of the traditional explosion-proof camera is relatively simple, such as Figure 4 As shown, the camera barrel and the lens barrel have their own air inlets and outlets, the air duct is single, and the two barrels are cooled separately. Therefore, the heat dissipation structure of the traditional explosion-proof camera can only make the whole The product can only be used in a working environment with a maximum temperature of 600-1200°C (compressed air index: pressure is 0.2MPa-0.7MPa; inlet temperature ≤35°C; air flow ≥0.18m / min), no matter how high the temperature is, the Unusable, poor heat dissipation

[0004] There is still a problem in the heat dissipation structure of the traditional explosion-proof camera, that is, once any air inlet stops working at the air inlet of the camera and the air inlet of the lens, it will cause the entire camera to be unable to achieve overall cooling, resulting in poor reliability. and the camera doesn't work

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