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Heat radiator on casing of projector

A technology for heat sinks and projectors, applied in projection devices, optics, instruments, etc., can solve problems such as unsafe and inconvenient use, high temperature, and no air flow channels, and achieve the effect of reducing temperature and improving product quality.

Inactive Publication Date: 2003-11-05
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some gaps are left between the cover 231 and the upper shell 26 due to manufacturing or assembly errors, but no air flow channel is formed, so that the air in the gap is still and continuously heated, which will also cause high temperature.
All of the above will cause the temperature of the upper and lower casings of the projector near the light source 20 to be higher than that of other casings, resulting in unsafe and inconvenient use.

Method used

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  • Heat radiator on casing of projector
  • Heat radiator on casing of projector
  • Heat radiator on casing of projector

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Embodiment Construction

[0014] Regarding the technical means and effects adopted by the present invention to achieve the above-mentioned purpose, a preferred embodiment is given and described as follows in conjunction with the accompanying drawings.

[0015] see image 3 , is the heat dissipation device for the projector case of the embodiment of the present invention, which mainly includes a bulb 31, a lamp holder 32, a combined case 33, an auxiliary air outlet 34, a lower case 35, a fan 40, and the like. The light bulb 31 is combined in the lamp holder 32, and then put into the combined shell 33 near the auxiliary air outlet 34 of the lower casing 35, and the fan 40 on the side of the combined shell 33 drives air to dissipate heat.

[0016] Wherein, one side of the lower casing 35 of the projector of the present invention is provided with a secondary air outlet 34 . The lower case 35 also has a base 36 , and the base 36 is provided with a case cooling device 30 near the secondary air outlet 34 . ...

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Abstract

The lamp holder inside the casing has at least one guide plane on one side and in the position near the lower edge and casing has one wind port in the position near the side opposite to the side withguide plane. There are one sheet over the lamp holder to form the upper wind channel in between, and one sheet below the lamp holder to form lower wind channel in between communicated with the guideplane.A fan near the guide plane makes air flow by the lamp holder, the upper wind channel and the lower wind channel before exhausted via the wind outlet so as to dissipate heat and lower the temperature near lamp inside the casing.

Description

technical field [0001] The invention relates to the structure of the projector, especially the cooling device of the casing used to cover the radiant heat. Background technique [0002] In order to project high-brightness and clear images on the screen and provide users with a comfortable viewing environment, general projectors often use high-power bulbs as projection light sources, making the bulbs the largest heat source in the projector. Therefore, the temperature of the upper and lower casings near the light bulb will be higher than that of other parts of the casing. For the safety of consumers and the improvement of product quality, existing projectors are usually cooled by fans to reduce the temperature of the casing. [0003] please see figure 1 , is the projection light source 10 of existing projector, mainly is that bulb 11 is fixed on the lamp holder 13 by movable coupling device 12, and lamp holder 13 is fixed on the lower case 15 of pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/16
Inventor 吴上炫许年辉
Owner CORETRONIC