A spotlight with self-heating function

Abstract

The invention discloses a spotlight with self-radiating function, which comprises a rotating seat, a cylindrical lampshade installed under the rotating seat, a lamp body fixedly installed on the inner wall of the lampshade, and a transparent cover. The upper and lower end sides of the lampshade are An upper liquid storage chamber and a lower liquid storage chamber are respectively opened in the wall, and two through holes for connecting the upper liquid storage chamber and the lower liquid storage chamber are symmetrically opened in the side wall of the lampshade. A second sliding plug and a first sliding plug are respectively sealed and slidably connected in the lower liquid storage chamber. The present invention can continuously make the cooling liquid in the upper liquid storage chamber and the lower liquid storage chamber communicate with each other through the arrangement of the thermal deformation alloy, the heat dissipation plate, the upper liquid storage chamber, the lower liquid storage chamber, and the cooling liquid through the heat dissipation plate. The heat in the lampshade absorbed by the liquid is dissipated to the outside air, thereby having a good heat dissipation and cooling effect on the spotlight, reducing the failure rate of electronic components inside the lamp body, and effectively extending the service life of the spotlight.

Description

technical field [0001] The invention relates to the technical field of spotlights, in particular to a spotlight with a self-radiating function. Background technique [0002] Spotlight is a kind of light with simple point light type, strong illuminance, narrow illumination, and easy to concentrate on a specific area in the scene. It is the most widely used light in studios and studios. For concentration, a black lampshade is usually used to cover the lamp body, and a transparent cover is provided at the opening to only allow the light of the lamp body to emit from the opening of the lampshade. [0003] This makes it difficult to dissipate the heat in the lampshade, and the lamp body of the spotlight is a high-intensity light source, which will generate a lot of heat when it is working. If the heat accumulates in the lampshade and cannot be dissipated, it will make the electronic components in the lamp body The temperature gradually increases. When the temperature exceeds a c...

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Problems solved by technology

[0003] This makes it difficult to dissipate the heat in the lampshade, and the lamp body of the spotlight is a high-intensity light source, which will generate a lot of heat when it is working. If the heat accumulates in the lampshade and cannot be dissipated, it will make the electronic components in the lamp body The temperature rises gradually. When the temperature exceeds a certain value, the failure rate of electronic components increases exponentially. Statistics show that for every 2°C increase in component temperature, the reliability will be reduced by 10%, which will lead to a significant reduction in the service life of the spotlight.

[0004] The heat dissipation methods adopted for spotlights in the prior art generally include setting up heat dissipation slots on the lampshade to allow it to dissipate heat naturally and installing a cooling fan in the limited space inside the lampshade of the spotlight. Slower, so the heat dissipation effect is poor. At the same time, this method is easy to cause dust in the outside air to enter the lampshade, causing more dust to adhere to the lamp body, making the heat dissipation of the lamp body more difficult; the latter is added in the lampshade. To install a cooling fan, first, the space in the lampshade except for the lamp body is small, so it is difficult to install a cooling fan, and second, the cooling fan will generate a lot of noise. Generally, it is necessary to keep quiet in the studio or studio, and the noise will affect the Filming or broadcasting work

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