CN101114112A - Projecting camera LCD cooling down mechanism - Google Patents
Projecting camera LCD cooling down mechanism Download PDFInfo
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- CN101114112A CN101114112A CNA2006100294320A CN200610029432A CN101114112A CN 101114112 A CN101114112 A CN 101114112A CN A2006100294320 A CNA2006100294320 A CN A2006100294320A CN 200610029432 A CN200610029432 A CN 200610029432A CN 101114112 A CN101114112 A CN 101114112A
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- liquid crystal
- crystal board
- heat dissipation
- dissipation wind
- wind channel
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Abstract
The invention provides a liquid crystal cooling device of a projection machine, comprising a green light liquid crystal board radiating fan, a blue light liquid crystal board radiating fan and a red light liquid crystal board radiating fan which are used for respectively cooling three liquid crystal boards, and a green light liquid crystal board radiating air channel, a blue light liquid crystal board radiating air channel and a red light liquid crystal board radiating air channel. Air inlets of three radiating air channels are respectively connected with air outlets of three radiating fans, and air outlets of the three radiating air channels are respectively and vertically upward arranged below three liquid crystal boards. The liquid crystal cooling device of the projection machine of the invention adopts the corresponding radiating fans and radiating air channels aiming at each liquid crystal board so as to guarantee a cooling effect for each liquid crystal board and also guarantee a normal running of the liquid crystal board and to prolong the service life of the liquid crystal board.
Description
Technical field
The present invention relates to a kind of projector, relate in particular to a kind of projecting camera LCD cooling down mechanism.
Background technology
Projector is widely used in education, commerce and the family.Common projector generally comprises a housing and is arranged on the interior photo engine of housing, circuit board, light source and corresponding cooling mechanism.According to what of camera lens used in the photo engine, projector can be divided into single-lens projector and tri-lens projector again.Generally all be earlier the white light that light source produced to be isolated red, green, blue three coloured light in design, by three liquid crystal light valves three coloured light are modulated respectively, three coloured light after the modulation are handled with diverse ways according to different mining single-lens or the three-lens design.In single-lens projector, be with closing that color component is synthesized and by the single lens projection imaging with three coloured light.In tri-lens projector, be that three coloured light are projected to imaging on the same screen via three different camera lenses respectively.Wherein single-lens projector has the advantages that volume is little, be convenient for carrying, but its back focal length is longer, and the bore of camera lens requires bigger, and optical modules such as employed camera lens and spectroscope are very high to the requirement of quality, precision, cause cost higher.And tri-lens projector can project big picture in than short distance, and picture brightness and contrast all improve a lot than single-lens projector.
No matter be single-lens projector or tri-lens projector, liquid crystal board wherein all can generate heat because of absorbing a part of impervious light in the course of the work.These heats such as untimely leaving can have a strong impact on the operate as normal and the serviceable life of liquid crystal board.The temperature that liquid crystal board can bear can not surpass 60 degree, therefore, must design an effective LCD cooling down mechanism, to guarantee the operate as normal of liquid crystal board.
Summary of the invention
Purpose of the present invention provides a kind of projecting camera LCD cooling down mechanism exactly in order to address the above problem.
The object of the present invention is achieved like this: a kind of projecting camera LCD cooling down mechanism, described projector is single-lens transmission liquid crystal panel projector, the electro-optic modulation arrangement of this projector comprises a color-combination prism and three liquid crystal boards, three liquid crystal boards comprise the green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board, wherein, the green glow liquid crystal board is arranged on the back of color-combination prism, the blue light liquid crystal board is arranged on the right of color-combination prism, the ruddiness liquid crystal board is arranged on the left side of color-combination prism, respectively be provided with a polaroid on the both sides, front and back of each liquid crystal board, in projector, be provided with polarization converter, be characterized in, described cooling body comprises the green glow liquid crystal board radiator fan that is used for cooling off respectively three liquid crystal boards, blue light liquid crystal board radiator fan and ruddiness liquid crystal board radiator fan and green glow liquid crystal board heat dissipation wind channel, blue light liquid crystal board heat dissipation wind channel and ruddiness liquid crystal board heat dissipation wind channel, the air inlet of three heat dissipation wind channels links to each other with the air outlet of three radiator fans respectively, and the air outlet of three heat dissipation wind channels is arranged on the below of three liquid crystal boards respectively vertically upward.
Described green glow liquid crystal board radiator fan and blue light liquid crystal board radiator fan and the green glow liquid crystal board heat dissipation wind channel that is connected thereof and blue light liquid crystal board heat dissipation wind channel are separately positioned on the back of green glow liquid crystal board and blue light liquid crystal board; Described ruddiness liquid crystal board radiator fan is arranged on the right of whole electro-optic modulation arrangement, and the below that the ruddiness liquid crystal board heat dissipation wind channel of its connection is arranged on the front of whole electro-optic modulation arrangement and passes projection lens bends towards the ruddiness liquid crystal board.
Also comprise the polarization converter heat dissipation wind channel, the air inlet of this heat dissipation wind channel links to each other with ruddiness liquid crystal board heat dissipation wind channel, and the air outlet of this heat dissipation wind channel is towards polarization converter.
Projecting camera LCD cooling down mechanism of the present invention is owing to be provided with corresponding radiator fan and heat dissipation wind channel at each liquid crystal board respectively, thereby guaranteed the cooling effect of each liquid crystal board, can guarantee the operate as normal of liquid crystal board, prolongs its serviceable life.
Description of drawings
Fig. 1 is the structural principle synoptic diagram of projector's electro-optic modulation arrangement (cooling object) related among the present invention;
Fig. 2 is the floor plan synoptic diagram of projecting camera LCD cooling down mechanism of the present invention.
Embodiment
Projecting camera LCD cooling down mechanism of the present invention is arranged in the housing of projector, is mainly used in being installed in the cooling of dispelling the heat of green glow liquid crystal board, ruddiness liquid crystal board and blue light liquid crystal board in the housing.Also can cool off polarization converter and color-combination prism.
Related projector is single-lens transmission liquid crystal panel projector among the present invention, and the electro-optic modulation arrangement of this projector (cooling object) comprises color-combination prism 1, green glow liquid crystal board 2, blue light liquid crystal board 3 and ruddiness liquid crystal board 4 as shown in Figure 1.Wherein, green glow liquid crystal board 2 is arranged on the back of color-combination prism 1, the both sides, front and back of green glow liquid crystal board 2 respectively are provided with a polaroid 5, blue light liquid crystal board 3 is arranged on the right of color-combination prism 1, the both sides, front and back of blue light liquid crystal board 3 respectively are provided with a polaroid 6, ruddiness liquid crystal board 4 is arranged on the left side of color-combination prism 1, and the both sides, front and back of ruddiness liquid crystal board 4 respectively are provided with a polaroid 7.The front of color-combination prism 1 is provided with projection lens 8.
Projecting camera LCD cooling down mechanism of the present invention comprises green glow liquid crystal board radiator fan 11, blue light liquid crystal board radiator fan 21 and ruddiness liquid crystal board radiator fan 31, green glow liquid crystal board heat dissipation wind channel 12, blue light liquid crystal board heat dissipation wind channel 22 and ruddiness liquid crystal board heat dissipation wind channel 32 as shown in Figure 2.The air inlet 121,221,321 of three heat dissipation wind channels links to each other with the air outlet of three radiator fans respectively, the air outlet 122,222,322 of three heat dissipation wind channels is arranged on three liquid crystal boards below of (not shown liquid crystal board can cooperate referring to Fig. 1) respectively vertically upward.Wherein, green glow liquid crystal board radiator fan 11 and the green glow liquid crystal board heat dissipation wind channel 12 that connects thereof are arranged on the back of green glow liquid crystal board, blue light liquid crystal board radiator fan 21 and the blue light liquid crystal board heat dissipation wind channel 22 that connects thereof are arranged on the back of blue light liquid crystal board, the two all is closely horizontal air intake, vertical air-out.And ruddiness liquid crystal board radiator fan 31 is arranged on the right of whole electro-optic modulation arrangement, the below that the ruddiness liquid crystal board heat dissipation wind channel 32 of its connection is arranged on the front of whole electro-optic modulation arrangement and passes projection lens bends towards the ruddiness liquid crystal board, remote inclination air intake, vertical air-out.
Projecting camera LCD cooling down mechanism of the present invention can also be expanded a polarization converter heat dissipation wind channel 41 is set, the air inlet 411 of this heat dissipation wind channel 41 links to each other with ruddiness liquid crystal board heat dissipation wind channel 32, and the air outlet 412 of this heat dissipation wind channel is towards the polarization converter (not shown).
Claims (3)
1. projecting camera LCD cooling down mechanism, described projector is single-lens transmission liquid crystal panel projector, the electro-optic modulation arrangement of this projector comprises a color-combination prism and three liquid crystal boards, three liquid crystal boards comprise the green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board, wherein, the green glow liquid crystal board is arranged on the back of color-combination prism, the blue light liquid crystal board is arranged on the right of color-combination prism, the ruddiness liquid crystal board is arranged on the left side of color-combination prism, respectively be provided with a polaroid on the both sides, front and back of each liquid crystal board, in projector, be provided with polarization converter, it is characterized in that: described cooling body comprises the green glow liquid crystal board radiator fan that is used for cooling off respectively three liquid crystal boards, blue light liquid crystal board radiator fan and ruddiness liquid crystal board radiator fan and green glow liquid crystal board heat dissipation wind channel, blue light liquid crystal board heat dissipation wind channel and ruddiness liquid crystal board heat dissipation wind channel, the air inlet of three heat dissipation wind channels links to each other with the air outlet of three radiator fans respectively, and the air outlet of three heat dissipation wind channels is arranged on the below of three liquid crystal boards respectively vertically upward.
2. projecting camera LCD cooling down mechanism as claimed in claim 1 is characterized in that: described green glow liquid crystal board radiator fan and blue light liquid crystal board radiator fan and the green glow liquid crystal board heat dissipation wind channel that is connected thereof and blue light liquid crystal board heat dissipation wind channel are separately positioned on the back of green glow liquid crystal board and blue light liquid crystal board; Described ruddiness liquid crystal board radiator fan is arranged on the right of whole electro-optic modulation arrangement, and the below that the ruddiness liquid crystal board heat dissipation wind channel of its connection is arranged on the front of whole electro-optic modulation arrangement and passes projection lens bends towards the ruddiness liquid crystal board.
3. projecting camera LCD cooling down mechanism as claimed in claim 1 or 2 is characterized in that: also comprise the polarization converter heat dissipation wind channel, the air inlet of this heat dissipation wind channel links to each other with ruddiness liquid crystal board heat dissipation wind channel, and the air outlet of this heat dissipation wind channel is towards polarization converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100294320A CN101114112A (en) | 2006-07-27 | 2006-07-27 | Projecting camera LCD cooling down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100294320A CN101114112A (en) | 2006-07-27 | 2006-07-27 | Projecting camera LCD cooling down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101114112A true CN101114112A (en) | 2008-01-30 |
Family
ID=39022519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100294320A Pending CN101114112A (en) | 2006-07-27 | 2006-07-27 | Projecting camera LCD cooling down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101114112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815189A (en) * | 2010-03-19 | 2010-08-25 | 南阳首控光电有限公司 | Large-screen television with high brightness |
-
2006
- 2006-07-27 CN CNA2006100294320A patent/CN101114112A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815189A (en) * | 2010-03-19 | 2010-08-25 | 南阳首控光电有限公司 | Large-screen television with high brightness |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080130 |