CN101441395A - Mechanism for cooling projector bulb - Google Patents
Mechanism for cooling projector bulb Download PDFInfo
- Publication number
- CN101441395A CN101441395A CNA2007101900267A CN200710190026A CN101441395A CN 101441395 A CN101441395 A CN 101441395A CN A2007101900267 A CNA2007101900267 A CN A2007101900267A CN 200710190026 A CN200710190026 A CN 200710190026A CN 101441395 A CN101441395 A CN 101441395A
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- bulb
- air
- air outlet
- projector
- cooling
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Abstract
The invention provides a projector bulb cooling mechanism. The projector bulb cooling mechanism comprises a bulb heat dissipation passage, a vortex flow fan and an axial flow fan. The bulb heat dissipation passage is arranged horizontally to enclose a bulb. An air inlet and an air outlet are arranged on the two ends of the bulb heat dissipation passage respectively, wherein the air inlet is arranged inside the passage, and the air outlet is arranged outside the passage and corresponds to an air outlet of the whole machine. The vortex flow fan is arranged on the air inlet side and is connected with the air inlet so as to input cooling air; and the axial flow fan is arranged between the air outlet of the passage and the air outlet of the whole machine so as to extract air out of the heat dissipation passage and exhaust the air outside the whole machine. The projector bulb cooling mechanism can effectively and timely discharge the heat emitted by a main heat source of the projector out of the machine, thereby reducing the heat impact on the optical elements of an optical engine such as a liquid crystal panel as much as possible, greatly improving the cooling effect, ensuring the normal operation of the liquid crystal panel, and prolonging the service life of the liquid crystal panel.
Description
Technical field
The present invention relates to a kind of projector, relate in particular to a kind of mechanism for cooling projector bulb.
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, make a noise by three liquid crystal light respectively three coloured light are modulated, 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 factory of camera lens directly 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 can produce a large amount of heat in the course of the work, and heat is mainly derived from bulb, the energy of bulb is except that a part becomes luminous energy, most of distribute in projector with the form of heat energy, 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 cooling mechanism, be used for the heat that the course of work produces is in time left, this cooling mechanism generally comprises many fans that vary in size and corresponding wind channels, be used for sucking force air at work from the outside and ventilate, heat is in time discharged from air outlet.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of heat that main thermal source distributed of projector can the discharge outside the machine timely and effectively, has improved cooling effect greatly, can guarantee the lamp bulb cooling mechanism of the operate as normal of liquid crystal board.
For solving above technical matters, a kind of mechanism for cooling projector bulb of the present invention comprises
Comprise housing and be arranged on the interior photo engine of housing, circuit board, apparatus for lighting up, bulb and power supply, on housing, be provided with the complete machine air outlet, also comprise an independent modified lamp bulb cooling mechanism that is provided with, this modified lamp bulb cooling mechanism comprises the bulb heat radiation air channel, vortex flow fan and aerofoil fan, bulb heat radiation air channel horizontally set is trapped among bulb wherein, its two ends are respectively equipped with air inlet and air outlet, air inlet is arranged on the inboard, air outlet is arranged on the outside corresponding to the complete machine air outlet, vortex flow fan is arranged on the air intake oral-lateral and links to each other with air inlet to provide cooling air intake, aerofoil fan to be arranged on to extract wind out heat dissipation wind channel between air outlet and the complete machine air outlet and discharges outside machine.
Described bulb heat radiation air channel air outlet is provided with the light that stops bulb and drains to shutter outside the projector.
The distance of described bulb heat radiation air channel air outlet and aerofoil fan is not less than 10 millimeters.
Also comprise the wind output channel that is connected between bulb heat radiation air channel air outlet and the aerofoil fan, this wind output channel can be totally-enclosed air channel or partially enclosed air channel.
Mechanism for cooling projector bulb of the present invention is owing to be provided with radiator fan and heat dissipation wind channel at bulb specially, thereby discharge the heat that main thermal source distributed of projector outside the machine timely and effectively, reduced it as much as possible to the particularly heat affecting of liquid crystal board of the optical element in the photo engine, improved cooling effect greatly, can guarantee the operate as normal of liquid crystal board, prolong its serviceable life.
Description of drawings
Figure is a structural representation of the present invention.
Embodiment
Mechanism for cooling projector bulb of the present invention is arranged in the housing of projector, and the bulb that is mainly used in being installed in the housing cools off, and its heat that distributes is in time discharged outside the machine.
As shown in the figure, 1 is projector's housing, and door is for being arranged on the complete machine air outlet on the housing, and 2 is that photo engine, 3 is bulb.Lamp bulb cooling mechanism of the present invention comprises bulb heat radiation air channel 4, vortex flow fan 5 and aerofoil fan 6, bulb heat radiation air channel 4 horizontally sets are trapped among bulb 3 wherein, its two ends are respectively equipped with air inlet 41 and air outlet 42, wherein air inlet 41 is arranged on the inboard in bulb heat radiation air channel 4, air outlet 42 is arranged on the outside in bulb heat radiation air channel 4 corresponding to complete machine air outlet 11, on air outlet 42, be provided with shutter, drain to outside the projector with the light that stops bulb.Vortex flow fan 5 is arranged on the air intake day side and link to each other with air inlet 41 the cooling air intake is provided in bulb heat radiation air channel 4, aerofoil fan 6 is arranged on the air outlet 42 in bulb heat radiation air channel 4 and extracts wind out the bulb heat radiation air channel between complete machine air-out day 11 and discharge outside machine, aerofoil fan 6 and the distance between bulb heat radiation air channel air-out day 42 are not less than 10 millimeters, to guarantee fan efficiency.At aerofoil fan 6 and between bulb heat radiation air channel air-out day 42 wind output channel 7 can also be set, come out from the bulb heat radiation air channel to guarantee the wind that aerofoil fan is discharged.This wind output channel 7 can be totally-enclosed air channel, also can part not seal, and the purpose of not sealing is and the hot-air of his part in the machine can be discharged.
Claims (4)
1, a kind of mechanism for cooling projector bulb, comprise housing and be arranged on the interior photo engine of housing, circuit board, apparatus for lighting up, bulb and power supply, on housing, be provided with the complete machine air outlet, it is characterized in that: also comprise an independent modified lamp bulb cooling mechanism that is provided with, this modified lamp bulb cooling mechanism comprises the bulb heat radiation air channel, vortex flow fan and aerofoil fan, bulb heat radiation air channel horizontally set is trapped among bulb wherein, its two ends are respectively equipped with air inlet and air outlet, air inlet is arranged on the inboard, air outlet is arranged on the outside corresponding to the complete machine air outlet, vortex flow fan is arranged on the air intake oral-lateral and links to each other with air inlet to provide cooling air intake, aerofoil fan to be arranged on to extract wind out heat dissipation wind channel between air outlet and the complete machine air outlet and discharges outside machine.
2, a kind of mechanism for cooling projector bulb according to claim 1 is characterized in that: described bulb heat radiation air channel air outlet is provided with the light that stops bulb and drains to shutter outside the projector.
3, a kind of mechanism for cooling projector bulb according to claim 1 is characterized in that: the distance of described bulb heat radiation air channel air outlet and aerofoil fan is not less than 10 millimeters.
4, a kind of mechanism for cooling projector bulb according to claim 1 is characterized in that: also comprise the wind output channel that is connected between bulb heat radiation air channel air outlet and the aerofoil fan, this wind output channel can be totally-enclosed air channel or partially enclosed air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101900267A CN101441395A (en) | 2007-11-19 | 2007-11-19 | Mechanism for cooling projector bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101900267A CN101441395A (en) | 2007-11-19 | 2007-11-19 | Mechanism for cooling projector bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101441395A true CN101441395A (en) | 2009-05-27 |
Family
ID=40725878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101900267A Withdrawn CN101441395A (en) | 2007-11-19 | 2007-11-19 | Mechanism for cooling projector bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101441395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488034A (en) * | 2013-09-30 | 2014-01-01 | 芜湖市安曼特微显示科技有限公司 | Projector |
-
2007
- 2007-11-19 CN CNA2007101900267A patent/CN101441395A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488034A (en) * | 2013-09-30 | 2014-01-01 | 芜湖市安曼特微显示科技有限公司 | Projector |
| CN103488034B (en) * | 2013-09-30 | 2016-04-06 | 芜湖市安曼特微显示科技有限公司 | A kind of projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |