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Structure of suction/exhaust bars in LCD projector

A technology for projectors and exhaust grills, which is applied in the field of invention of the pumping/exhaust grill structure, can solve the problems of light loss, inability to maintain a quiet atmosphere for users, etc., and achieve the effect of reducing cooling noise

Inactive Publication Date: 2005-08-31
LEIJIN ELECTRONIC SHENYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] When people are pursuing a high-quality audio-visual realm, there are noises or lights generated by cooling the inside of the projector with a cooling fan, which can not maintain a quiet atmosphere, which brings troubles to users.
[0025] And, even if this projector is installed on the ceiling, also can be installed in the suction grid 113 of bottom surface, refer to Image 6 , causing light loss

Method used

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  • Structure of suction/exhaust bars in LCD projector
  • Structure of suction/exhaust bars in LCD projector
  • Structure of suction/exhaust bars in LCD projector

Examples

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Embodiment Construction

[0036] Below with reference to accompanying drawing, content of the present invention is described in detail:

[0037] Such as Figure 5 As shown, the structure of the exhaust grid 211 designed according to the purpose of the present invention is composed of a vent hole 211a for air circulation and a plurality of light-blocking films 211b that block light at the end of the vent hole 211a.

[0038] The light blocking film 211b is designed in a "V" shape.

[0039] Moreover, the "V"-shaped light-blocking films 211b are designed to overlap. At this time, it is correct that the width H between each light-blocking film 211b is parallel or slightly overlapped.

[0040] This is to prevent the light of the illuminating lamp 10 from being lost to the outside.

[0041] Moreover, the light blocking film 211b is designed to face the inside of the machine.

[0042] and in Figure 5 Only cited the example of the exhaust grid, but it is also applicable to the structure of the exhaust grid...

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Abstract

The present invention relates to an air-sucking-exhausting grid structure of liquid crystal display projector. It is used for discharging the hot air produced in the interior of the projector into exterior. It is characterized by that the air sucking / exhausting grid of liquid crystal display projector can be mounted in the front of air-sucking fan and air-exhausting fan, at the same time the 'V' or 'W'-shaped air sucking / exhausting grid light-resisting films are designed, and the distances between every two light-resisting films are parallel or slightly overlapped so as to ensure circulation flow of air and can ensure that the lamp light can not be leaked toward exterior.

Description

technical field [0001] The present invention relates to liquid crystal display projectors, hereinafter referred to as LCD projectors, and more precisely relates to the invention of the suction / exhaust grid structure of the projector, which can block the light irradiated by the suction / exhaust grids and improve the cooling effect. Background technique [0002] Generally speaking, the projector is usually directly connected with the cutting-edge audio-visual image player, such as computer and camcorder, digital video player DVD, tape recorder VTR and other players to project the image onto the wall screen for various explanation activities. or multimedia education. [0003] Such as figure 1 As shown, a general projector is composed of a casing 110 , an optical engine 120 mounted inside the casing, an exhaust fan 131 , an exhaust fan 133 (not shown), and a cooling unit 130 . The designed exhaust fan 131 discharges the heat generated inside the optical engine 120 to the outsid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/16
CPCG03B11/00G03B21/16
Inventor 赵汉庆
Owner LEIJIN ELECTRONIC SHENYANG CO LTD