Ventilation and heat dissipation type optical fiber cable distribution box

Abstract

The invention discloses a ventilation and heat dissipation type optical fiber cable distribution box which comprises a box body, a heat dissipation plate is in lap joint with the inner wall of the boxbody, a heat dissipation case is arranged at the top of the heat dissipation plate, a liquid storage tank is fixedly connected to the inner bottom wall of the heat dissipation case, evaporation liquid is injected into the liquid storage tank, the top of the liquid storage tank communicates with a sliding pipe, a piston rod is slidably connected into the sliding pipe, and a pressure valve is installed at the communication position of the sliding pipe and the liquid storage tank. According to the ventilation and heat dissipation type optical fiber cable distribution box, a large amount of heatis gathered in the long-time use process of the optical fiber cable distribution box, dichloromethane with the boiling point of 39.75 DEG C is adopted as evaporation liquid in the liquid storage tank,the evaporation liquid absorbs heat and evaporates when the temperature is high, and the evaporation liquid is condensed and liquefied when the temperature is low; and when the temperature in the boxbody is close to the boiling point of the evaporation liquid, the evaporation liquid absorbs heat and evaporates rapidly, the temperature in the box body is lowered preliminarily, and the box body has a good heat dispelling effect.

Description

technical field

[0001] The invention relates to the technical field of optical fiber distribution boxes, in particular to a ventilation and heat dissipation type optical fiber distribution box. Background technique

[0002] The optical fiber distribution box is an interface device used to connect the main optical cable and the distribution optical cable outdoors, in the corridor or indoors. The optical fiber distribution box must be able to work reliably in the specified environment, and its box can withstand a vertical pressure not greater than 500N ; Its internal multi-core depends on the number of fiber distribution boxes that can disperse the lines. The more disperse lines, the higher the heat of its own work.

[0003] After the existing optical fiber distribution box is installed indoors, it only dissipates heat through some cooling holes, and its cooling effect is not good, causing the temperature in the box to be too high, resulting in a reduced use effect; sometimes ...

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