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Inlet structure

A technology of air intake structure and air intake, applied in optics, instruments, projection devices, etc., can solve problems such as inability to concentrate heat dissipation airflow, increased fan noise, light and noise leakage, etc.

Inactive Publication Date: 2008-07-30
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is no air guide design between the air intake hole 111 and the fan 112, so the external air flow will flow into the fan 112 unrestrictedly with the shortest or least impedance path, so that the heat dissipation air flow cannot be concentrated on the heating element 13, so as to maximize the heat dissipation effect to cool the heating element 13; and the current solution is to increase the air flow by increasing the number of fans, rotating speed or increasing the area of ​​the air intake hole 111, so as to improve the cooling efficiency of the heating element 13, but this method is easy to cause the internal cooling of the device 10 The light and noise leak out through the air intake hole 111, causing the fan noise to increase and affect the audio-visual experience

Method used

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Embodiment Construction

[0016] See Figure 4 and Figure 5 , the air intake structure 30 of the present invention is arranged in a projection device 20, and a heating element 21 is arranged in the projection device 20, such as: an integrated column, a relay, a condenser lens, an electronic component or a color wheel, etc., and the heating element 21 is installed in the optical engine Inside the housing 22.

[0017] The air intake structure 30 includes an air inlet 31, an air guide pipe 32 and a fan 33; wherein the air inlet 31 is located at the bottom of the projection device 20; the air guide pipe 32 is a hollow body of a straight air duct, and the air guide pipe The number of 32 can be set according to the number of heating elements 21 or different concentrated positions, and the inlet port 321 is connected to the air inlet 31, and the area of ​​the air inlet 31 is set according to the area of ​​the air guide pipe 32, so that the guided air flow is The air ports 31 enter the projection device 20 th...

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PUM

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Abstract

The present invention relates to an air intake structure set in projecting apparatus with heating elements. Said air intake structure includes air inlet, air duct and fan, in which the air inlet is opened on the machine shell of the projecting apparatus, the inlet end of the air duct is connected with the air inlet, and its outlet end is positioned at one sie of the heating element, and the fan is positioned near by heating element. Said invention can utilize the fan to make the external air be fed into the inteior of the projecting apparatus and flowed through the heating element by means of air inlet and air duct so as to raise the effect of cooling heating element.

Description

technical field [0001] The invention relates to an air intake structure, in particular to an air intake structure applied to a projection device. Background technique [0002] See Figure 1, figure 2 and Fig. 3, the air intake structure 11 of the known projection device 10 offers several air intake holes 111 on the lower cover 12 of the projection device 10, and a fan 112 is arranged near the air intake hole 111, and the Heating elements 13 such as: integration rods (integration rod), relays, condensers, etc. are arranged near the air inlet 111, and when the fan 112 is activated, the outside air is drawn into the projection device 10 through the air inlet 111, and the air flow Pass through the vicinity of the heating element 13 to cool the heating element 13 . [0003] However, there is no air guide design between the air intake hole 111 and the fan 112, so the external air flow will flow into the fan 112 unrestrictedly with the shortest or least impedance path, so that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/16G03B21/46
Inventor 许年辉吴上炫苏文贤
Owner CORETRONIC