CN2904036Y - Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct - Google Patents
Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct Download PDFInfo
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- CN2904036Y CN2904036Y CN 200620040515 CN200620040515U CN2904036Y CN 2904036 Y CN2904036 Y CN 2904036Y CN 200620040515 CN200620040515 CN 200620040515 CN 200620040515 U CN200620040515 U CN 200620040515U CN 2904036 Y CN2904036 Y CN 2904036Y
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- liquid crystal
- crystal board
- cooling air
- airtight cooling
- air channel
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Abstract
The utility model provides an improved projector cooling mechanism with liquid crystal panel airtight cooling ducts comprising multiple radiating fans and corresponding ducts, also comprising a green light liquid crystal panel airtight cooling duct,a blue light liquid crystal panel airtight cooling duct, and a red light liquid crystal panel airtight cooling duct respectively enclosing a green light liquid crystal panel, a blue light liquid crystal panel and a red light liquid crystal panel. The utility model, improved projector cooling mechanism with liquid crystal panel airtight cooling ducts, makes the coolant air flow through the liquid crystal panels in a high concentration way because the corresponding airtight cooling duct is respectively set aiming at each liquid crystal panel, accordingly make the air quantity increase, make the flow rate increase, and can greatly improve the coolant effect to the liquid crystal panel.
Description
Technical field
The utility model relates to a kind of projector, relates in particular to the projecting camera LCD cooling down mechanism of the airtight cooling air channel of a kind of modified band liquid crystal board.
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, apparatus for lighting up, 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.
Projector in the course of the work, can produce a large amount of heat, heat is mainly derived from bulb, the energy of bulb is except that a part becomes luminous energy, major part is distributed in projector with the form of heat energy, in addition, the optical element in the photo engine particularly liquid crystal also can absorb a part of impervious light and generate heat.These heats such as untimely leaving can have a strong impact on the operate as normal and the serviceable life of projector.Therefore in projector, all be provided with the heat radiation cooling body, comprise being mainly used in the LCD cooling down mechanism that liquid crystal is cooled off, this LCD cooling down mechanism comprises many radiator fans and corresponding wind channels, is used for the heat that each liquid crystal board produces is in the course of the work in time left.But the LCD cooling down mechanism of prior art just is arranged on the air outlet of each cooling air channel the below of each liquid crystal board, and the cooling air of leaving is blown over around liquid crystal board, thereby the air quantity dispersion, influences cooling effect.Also wasted a part of power of blower fan.
Summary of the invention
The purpose of this utility model provides the projecting camera LCD cooling down mechanism of the airtight cooling air channel of a kind of modified band liquid crystal board exactly in order to address the above problem.
The purpose of this utility model is achieved in that the projecting camera LCD cooling down mechanism of the airtight cooling air channel of a kind of modified band liquid crystal board, be provided with green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board in the described projector, the both sides, front and back of each liquid crystal board are respectively equipped with polaroid; Described LCD cooling down mechanism comprises green glow liquid crystal board radiator fan, 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, the air outlet of three heat dissipation wind channels is arranged on the below of three liquid crystal boards respectively vertically upward, be characterized in, also comprise respectively with the green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board are enclosed in the airtight cooling air channel of green glow liquid crystal board wherein, airtight cooling air channel of blue light liquid crystal board and the airtight cooling air channel of ruddiness liquid crystal board, the air inlet of the airtight cooling air channel of green glow liquid crystal board links to each other with the air outlet of green glow liquid crystal board heat dissipation wind channel, the air inlet of the airtight cooling air channel of blue light liquid crystal board links to each other with the air outlet of blue light liquid crystal board heat dissipation wind channel, and the air inlet of the airtight cooling air channel of ruddiness liquid crystal board links to each other with the air outlet of ruddiness liquid crystal board heat dissipation wind channel.
The airtight cooling air channel of described each liquid crystal board also will be arranged in the polaroid on both sides is enclosed in together before and after each liquid crystal board.
The airtight cooling air channel of described each liquid crystal board is a undergauge section in the part that is positioned at below the liquid crystal board, makes the airtight cooling air channel of each liquid crystal board form tubaeform air inlet.
The projecting camera LCD cooling down mechanism of the airtight cooling air channel of the utility model modified band liquid crystal board is owing to be provided with airtight cooling air channel respectively at each liquid crystal board, make the cooling air high concentration flow through liquid crystal board, thereby air quantity is strengthened, flow velocity increases, in addition, cooling air flows through in the interval that limits, and can produce vegetarian stream, and its cooling effect is much higher than advection.Amid all these factors, airtight cooling air channel is set and improves cooling effect greatly liquid crystal board.Cooling effect can reduce the requirement to power of fan conversely again, thereby can reduce the manufacturing cost of projector after improving.
Description of drawings
Fig. 1 is the structural representation of the projecting camera LCD cooling down mechanism of the airtight cooling air channel of the utility model modified band liquid crystal board;
Fig. 2 is the liquid crystal board of the airtight cooling air channel of modified band liquid crystal board in the utility model and the structural representation of relevant optical thereof;
Fig. 3 is the liquid crystal board in the utility model and the structural representation of airtight cooling air channel thereof.
Embodiment
Referring to Fig. 1, the projecting camera LCD cooling down mechanism of the airtight cooling air channel of the utility model modified band liquid crystal board 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.This LCD cooling down mechanism 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 1.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, and the air outlet 122,222,322 of three heat dissipation wind channels is arranged on the below of three liquid crystal boards (not shown liquid crystal board) 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.Shown in Fig. 1,41 is polarization converter heat dissipation wind channel 41, and 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).
Referring to Fig. 2, Fig. 3, Fig. 2, Fig. 3 with a liquid crystal board be example show the airtight cooling air channel of green glow liquid crystal board, the airtight cooling air channel of blue light liquid crystal board and the airtight cooling air channel of ruddiness liquid crystal board in the utility model structure and with the relative position relation of liquid crystal board.Shown in the figure, 1 is liquid crystal board, and 2 is polaroid, and 3 is airtight cooling air channel, and 4 is color-combination prism, and 5 is projection lens, and arrow is depicted as the flow direction of cooling air.The air inlet of the airtight cooling air channel of green glow liquid crystal board in the utility model links to each other with the air outlet of green glow liquid crystal board heat dissipation wind channel, the air inlet of the airtight cooling air channel of blue light liquid crystal board links to each other with the air outlet of blue light liquid crystal board heat dissipation wind channel, and the air inlet of the airtight cooling air channel of ruddiness liquid crystal board links to each other with the air outlet of ruddiness liquid crystal board heat dissipation wind channel.The airtight cooling air channel 3 of each liquid crystal board is respectively with each liquid crystal board 1 and be arranged in the polaroid 2 on both sides is enclosed in together before and after each liquid crystal board.The airtight cooling air channel 3 of each liquid crystal board is a undergauge section in the part that is positioned at below the liquid crystal board, makes the airtight cooling air channel of each liquid crystal board form tubaeform air inlet 31.
Claims (3)
1, the projecting camera LCD cooling down mechanism of the airtight cooling air channel of a kind of modified band liquid crystal board is provided with green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board in the described projector, and the both sides, front and back of each liquid crystal board are respectively equipped with polaroid; Described LCD cooling down mechanism comprises green glow liquid crystal board radiator fan, 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, the air outlet of three heat dissipation wind channels is arranged on the below of three liquid crystal boards respectively vertically upward, it is characterized in that: also comprise respectively with the green glow liquid crystal board, blue light liquid crystal board and ruddiness liquid crystal board are enclosed in the airtight cooling air channel of green glow liquid crystal board wherein, airtight cooling air channel of blue light liquid crystal board and the airtight cooling air channel of ruddiness liquid crystal board, the air inlet of the airtight cooling air channel of green glow liquid crystal board links to each other with the air outlet of green glow liquid crystal board heat dissipation wind channel, the air inlet of the airtight cooling air channel of blue light liquid crystal board links to each other with the air outlet of blue light liquid crystal board heat dissipation wind channel, and the air inlet of the airtight cooling air channel of ruddiness liquid crystal board links to each other with the air outlet of ruddiness liquid crystal board heat dissipation wind channel.
2, the projecting camera LCD cooling down mechanism of the airtight cooling air channel of modified band liquid crystal board as claimed in claim 1 is characterized in that: the airtight cooling air channel of described each liquid crystal board also will be arranged in the polaroid on both sides is enclosed in together before and after each liquid crystal board.
3, the projecting camera LCD cooling down mechanism of the airtight cooling air channel of modified band liquid crystal board as claimed in claim 1, it is characterized in that: the airtight cooling air channel of described each liquid crystal board is a undergauge section in the part that is positioned at below the liquid crystal board, makes the airtight cooling air channel of each liquid crystal board form tubaeform air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040515 CN2904036Y (en) | 2006-03-27 | 2006-03-27 | Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040515 CN2904036Y (en) | 2006-03-27 | 2006-03-27 | Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904036Y true CN2904036Y (en) | 2007-05-23 |
Family
ID=38079450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040515 Expired - Fee Related CN2904036Y (en) | 2006-03-27 | 2006-03-27 | Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904036Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105682A (en) * | 2011-11-09 | 2013-05-15 | 精工爱普生株式会社 | Electrooptic module and electronic device |
-
2006
- 2006-03-27 CN CN 200620040515 patent/CN2904036Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105682A (en) * | 2011-11-09 | 2013-05-15 | 精工爱普生株式会社 | Electrooptic module and electronic device |
| CN103105682B (en) * | 2011-11-09 | 2017-09-22 | 精工爱普生株式会社 | Electro-optic module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |