CN102621787A - Heat radiation structure of projector - Google Patents
Heat radiation structure of projector Download PDFInfo
- Publication number
- CN102621787A CN102621787A CN2011100822430A CN201110082243A CN102621787A CN 102621787 A CN102621787 A CN 102621787A CN 2011100822430 A CN2011100822430 A CN 2011100822430A CN 201110082243 A CN201110082243 A CN 201110082243A CN 102621787 A CN102621787 A CN 102621787A
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- fan
- channel
- air intake
- intake vent
- passage
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- 230000005855 radiation Effects 0.000 title description 9
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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Abstract
The invention relates to a heat dissipation structure of a projector, which comprises an organism, a control circuit substrate, an optical device and three fans. Wherein, a first channel, a second channel and a third channel which are communicated are formed in the machine body; the control circuit substrate is arranged on the first channel; the optical device comprises a Light source set and a Spatial Light Modulator , wherein the Light source set is arranged in the third channel, and the Spatial Light Modulator is arranged in the second channel; the three fans are respectively arranged on the channels and respectively blow air to the control circuit substrate and the optical device so as to achieve the purpose of improving the heat dissipation efficiency.
Description
Technical field
The present invention is relevant with projector, the more detailed radiator structure that is meant a kind of projector.
Background technology
In recent years, along with the progress of image science and technology, the people who utilizes projector to carry out bulletin, video signal, meeting or ornamental film gets more and more.Yet, internals such as the light source of projector or circuit board, the used heat that when running, is produced will influence the projection imaging quality of projector, more can cause shorten the serviceable life of projector.
In view of this, get rid of used heat effectively, the projector heat radiation structure Design particular importance that just seems for making the projection function.Known radiator structure is that several air intake vents and an air outlet are set on body mostly; Use in body and to form several and be communicated with the heat dissipation wind channel of each air intake vent and air outlet respectively; And utilize several fans to be installed in respectively near these air intake vents; And the air of engine body exterior lower temperature is introduced respectively in this heat dissipation wind channel, to reach purpose to the member heat radiation of internal body.
Yet; Above-mentioned heat dissipation design is to utilize flow dividing structure that the air branch on each fan suction heat dissipation wind channel is blown to each internals to dispel the heat mostly; But this kind design causes the deficiency in draught that blows toward each internals easily; And can't effectively reduce the temperature of internals, cause projector clear, and have influence on the image quality and the serviceable life of projector because of radiating effect.
Summary of the invention
The technical matters that the present invention will solve is, to the not good defective of the radiator structure radiating effect of projector in the prior art, a kind of radiator structure of projector is provided, and has the usefulness of high heat radiation.
The technical scheme that the present invention is adopted for its technical matters of solution is to provide a kind of radiator structure of projector to include body, optical devices, control circuit substrate, first fan, second fan and three fan.Wherein, this body has first air intake vent, second air intake vent, the 3rd air intake vent and air outlet, and this internal body has first passage, second channel and third channel.Wherein, this first passage one end is communicated with this first air intake vent, and the other end is communicated with this air outlet; This second channel one end is communicated with this second air intake vent, and the other end then is connected between the two ends on this first passage; Near this air outlet, and this third channel one end is communicated with the 3rd air intake vent this third channel than this second channel, and the other end then is connected between the two ends on this first passage; These optical devices include light sources and spatial light modulation device (Spatial Light Modulator); This light sources is located on this third channel; This spatial light modulation device is located on this second channel; This control circuit substrate is located on this first passage; This first fan is located on this first passage, and between this first air intake vent and this control circuit substrate, and near this first air intake vent; This second fan is located on this second channel, and between this second air intake vent and this spatial light modulation device, and near this second air intake vent; This three fan is located on this third channel, and between the 3rd air intake vent and this light sources, and near the 3rd air intake vent.
By this, the air with these passages just capable of using dispels the heat to different component respectively, then collaborates, to reach high heat dissipation efficiency.
Description of drawings
Fig. 1 is stereoscopic figure of the present invention.
Fig. 2 is the calcspar of the present invention's first preferred embodiment.
Fig. 3 is the calcspar of the present invention's second preferred embodiment.
Fig. 4 is the calcspar of the present invention's the 3rd preferred embodiment.
Fig. 5 can set up the benchmark of temperature sensor as the fan adjustment for disclosing the present invention.
Embodiment
For being illustrated more clearly in the present invention, lift now that preferred embodiment and conjunction with figs. specify as after.
See also Fig. 1 and Fig. 2, be the radiator structure of the present invention first preferred embodiment projector 1.This projector 1 includes body 10, optical devices 20, control circuit substrate 30, first fan 41, second fan 42, three fan 43 and the 4th fan 44.Wherein:
This body 10 has first air intake vent 11, second air intake vent 12, the 3rd air intake vent 13 and air outlet 14, and these air intake vents 11～13rd adopt the fence type structure, can prevent that not only foreign matter from getting into, and can not have influence on the smoothness of inlet air.This air outlet 14 adopts the shutter design, and this design removes and can prevent that foreign matter from getting into, and can not have influence on outside the smoothness of air-out, has more the effect of shading, and can avoid having influence on because of exposure the quality of projection.
In addition, have first passage 15, second channel 16 and third channel 17 in this body 10.These first passage 15 1 ends are communicated with this first air intake vent 11, and the other end is communicated with this air outlet 14.These second channel 16 1 ends are communicated with this second air intake vent 12, and the other end then is connected between the two ends on this first passage 15.Near this air outlet 14, and these third channel 17 1 ends are communicated with the 3rd air intake vent 13 this third channel 17 than this second channel 16, and the other end then is connected between the two ends on this first passage 15.
These optical devices 20 include light sources 21 and spatial light modulation device 22 (Spatial Light Modulator).This light sources 21 is located on this third channel 17.This light sources 21 include white light bulb 211 and polarization conversion system camera lens 212 (Polarization Conversion System Lens, PCSLens), and this polarization conversion system camera lens 212 than this white light bulb 211 near the 3rd air intake vent 13.Certainly in design, light sources also can be complied with different design and demands, and changes this white light bulb 211 into the three primary colors bulb, or uses this polarization conversion system camera lens 212 instead collimating mirror or colour wheel replacement.
This spatial light modulation device 22 is located on this second channel 15.In present embodiment, this spatial light modulation device 22 is three-chip type liquid crystal (LCD Panel) optical gate, but not as limit.In the design; The spatial light modulation device also can be one chip liquid crystal (LCD Panel) optical gate, digital micromirror device (Digital Micromirror Device; DMD), silica-based liquid crystal panel (Liquid Crystal on Silicon; LCoS) or palisade formula light valve (Grating Light Valve, GLV).In addition, because of the operation principles of these optical devices 20 belongs to prior art, just repeat no more in this.
This control circuit substrate 30 is located on this first passage 15, and between the junction and this first air intake vent 11 of this first passage 15 and this second channel 16.This control circuit substrate 30 electrically connects with these optical devices 20 and these electric fans 41～44, in order to control and these optical devices 20 of startup and 41～44 starts of these electric fans.
This first fan 41 is tubeaxial fan (Axial Fan).This first fan 41 is located on this first passage 15, and between this first air intake vent 11 and this control circuit substrate 30, and near this first air intake vent 11.This first fan 41 is in order to sucking this body 10 outer air in this first passage 15, and blows to this control circuit substrate 30.
This second fan 42 is multiple wing type fan (Blower Fan).This second fan 42 is located on this second channel 16, and between this second air intake vent 12 and this spatial light modulation device 22, and near this second air intake vent 12.This second fan 42 is in order to sucking this body 10 outer air in this second channel 16, and blows to this spatial light modulation device 22.
This three fan 43 is multiple wing type fan (Blower Fan).This three fan 43 is located on this third channel 17, and between the 3rd air intake vent 13 and this light sources 21, and near the 3rd air intake vent 13.This three fan 43 is in order to sucking this body 10 outer air in this third channel 17, and blows to this light sources 21.
The 4th fan 44 is multiple wing type fan (Blower Fan).The 4th fan 44 is located on this first passage 15, and between the junction and this air outlet 14 of this second channel 16 and this first passage 15, and near the junction of this second channel 16 with this first passage 15.The 4th fan 44 is used the air flow rate that promotes these passages 15,16, and then is increased the effect of heat radiation in order to the direction of this first passage 15 with past this air outlet 14 of air of this second channel 16 blowed.In addition; 44 wind that blow out of the 4th fan; Also can pass through the junction of this third channel 17 and this first passage 15; And can carry out the secondary heat radiation to white light bulb 211 near this first passage 15, and use the radiating effect of lifting to this white light bulb 211, closely prolong the serviceable life of this white light bulb 211.
In addition; See also Fig. 3; Be the radiator structure of the projector 2 of the present invention's second preferred embodiment, this projector 2 makes 63 wind that blow out of three fan with the above-mentioned first preferred embodiment difference in the structure of the third channel 53 of this projector 2, blow to light sources 70 after; Blow toward the wind of second channel 52 with 62 in second fan earlier and conflux, together flow to first passage 51 again.By this, utilize above-mentioned design to increase the total blast volume on the first passage 51,64 in the 4th fan is blown toward the air quantity of white light bulb 71 to be increased, and then reaches the radiating effect of lifting to white light bubble 71.
Moreover; See also Fig. 4, be the radiator structure of the projector 3 of the present invention's the 3rd preferred embodiment, this projector 3 is that with above-mentioned each embodiment difference the second channel 82 of this projector 3 is connected with third channel 83; So that the air of second fan 92 and three fan 83 suction can conflux earlier; And blow toward light sources 95 and spatial light modulation device 96 directions, use to increase and blow, and then reach preferable radiating effect toward the air quantity of light sources 95 with spatial light modulation device 96.
Well known is, the light sources of projector is the main source of projector's used heat always, and the spatial light modulation actuator temperature of projector is when too high, and also regular meeting causes image fog or the distortion that projects.Therefore; For strengthening heat radiation to light sources and spatial light modulation device, see also Fig. 5, be the basis with the framework of Fig. 2; Explain projector of the present invention more can be on demand on third channel 17 near light sources 21 places; And on this second channel 16, set up temperature sensor 100 respectively near spatial light modulation device 22 places, and these temperature sensors 100 electrically connect with control circuit substrate 30, in order to detect the temperature of this light sources 21 and this spatial light modulation device 22 respectively.
By this; When the temperature that records light sources 21 (spatial light modulation device 22) when temperature sensor 100 promotes gradually; The temperature that this control circuit substrate 30 just records according to temperature sensor 100 increases the rotating speed of this three fan 43 (second fan 42) gradually; The air quantity that blows to this light sources 21 (spatial light modulation device 22) is promoted, and reach the effect of strengthening heat radiation.
Certainly in design, projector of the present invention also can be according to user demand, and only on this second channel 16 or third channel 17, temperature sensor 100 is set.In addition; Be arranged at temperature sensor 100 on this third channel 17 can be the temperature of this white light bulb 211 of sensing only or only this polarization conversion system camera lens 212 of sensing temperature or be the temperature of this white light bulb 211 of sensing and this polarization conversion system camera lens 212 simultaneously, and as the benchmark of these three fan 43 rotating speeds of adjustment.Moreover; Above-mentioned design is an example with the structure of projector 1; But, also be applicable to the structure of projector 2 or projector 3, and so long as meet the spirit of confluxing in air channel of the present invention not as limit; And in these internals, have additional temperature sensor as the adjustment rotation speed of the fan according to the person, another implements aspect also to belong to the present invention.
Comprehensive the above can learn that the used heat that the optical devices of projector and control circuit substrate are produced can distinctly dispel the heat via fan in the body and passage, do not blow the too small doubt that causes poor heat radiation of air quantity and do not have because of branch.In addition, air outlet utilizes the design of shutter, can increase the barrier of bulb explosion time, and the user does not just have the danger of being shot wounded by the bulb fragment, and then increases the security that this projector uses.
The above is merely the preferable possible embodiments of the present invention, and equivalent structure that all application instructions of the present invention and claim are done and method for making change, and ought to be included in the claim of the present invention.
Claims (10)
1. the radiator structure of a projector is characterized in that, includes:
Body have first air intake vent, second air intake vent, the 3rd air intake vent and air outlet, and this internal body has first passage, second channel and third channel; Wherein, this first passage one end is communicated with this first air intake vent, and the other end is communicated with this air outlet; This second channel one end is communicated with this second air intake vent, and the other end then is connected between the two ends on this first passage; Near this air outlet, and this third channel one end is communicated with the 3rd air intake vent this third channel than this second channel, and the other end then is connected between the two ends on this first passage;
Optical devices include light sources and spatial light modulation device; This light sources is located on this third channel; This spatial light modulation device is located on this second channel;
The control circuit substrate is located on this first passage;
First fan is located on this first passage, and between this first air intake vent and this control circuit substrate, and near this first air intake vent;
Second fan is located on this second channel, and between this second air intake vent and this spatial light modulation device, and near this second air intake vent; And
Three fan is located on this third channel, and between the 3rd air intake vent and this light sources, and near the 3rd air intake vent.
2. the radiator structure of projector according to claim 1; It is characterized in that, more comprise the 4th fan, be located on this first passage; And between the junction and this air outlet of this second channel and this first passage, and near the junction of this second channel and this first passage.
3. like the radiator structure of the said projector of claim 2, it is characterized in that the 4th fan is the multiple wing type fan.
4. the radiator structure of projector according to claim 1 is characterized in that this first fan is a tubeaxial fan.
5. the radiator structure of projector according to claim 1 is characterized in that this second fan is the multiple wing type fan.
6. the radiator structure of projector according to claim 1 is characterized in that this three fan is the multiple wing type fan.
7. the radiator structure of projector according to claim 1 is characterized in that, more includes temperature sensor, in order to detect the temperature of this light sources; In addition, this control circuit substrate electrically connects this temperature sensor and this three fan simultaneously, and increases or reduce the rotating speed of this three fan according to the temperature that this temperature sensor records.
8. the radiator structure of projector according to claim 1 is characterized in that, more includes temperature sensor, in order to detect the temperature of this spatial light modulation device; In addition, this control circuit substrate electrically connects this temperature sensor and this second fan simultaneously, and increases or reduce the rotating speed of this second fan according to the temperature that this temperature sensor records.
9. the radiator structure of projector according to claim 1 is characterized in that this spatial light modulation device is the three-chip type liquid crystal photic gate.
10. the radiator structure of projector according to claim 1 is characterized in that this air outlet is a shutter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100103717A TWI430011B (en) | 2011-01-31 | 2011-01-31 | Radiator structure of the projector |
| TW100103717 | 2011-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102621787A true CN102621787A (en) | 2012-08-01 |
| CN102621787B CN102621787B (en) | 2015-02-18 |
Family
ID=46561785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110082243.0A Expired - Fee Related CN102621787B (en) | 2011-01-31 | 2011-04-01 | Heat radiation structure of projector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102621787B (en) |
| TW (1) | TWI430011B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019782A (en) * | 2016-07-07 | 2016-10-12 | 苏州佳世达电通有限公司 | Projection device |
| CN109688772A (en) * | 2019-01-17 | 2019-04-26 | 华勤通讯技术有限公司 | Mobile terminal radiator structure and mobile terminal |
| CN112882329A (en) * | 2021-01-19 | 2021-06-01 | 杭州当贝网络科技有限公司 | Projector temperature control method and system |
| CN113031378A (en) * | 2019-12-25 | 2021-06-25 | 精工爱普生株式会社 | Projector with a light source |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI556017B (en) * | 2014-10-16 | 2016-11-01 | 信泰光學（深圳）有限公司 | Pico projector |
| CN111121651A (en) | 2018-10-31 | 2020-05-08 | 财团法人工业技术研究院 | Optical measurement stability control system |
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| US20060170876A1 (en) * | 2005-02-02 | 2006-08-03 | Funai Electric Co., Ltd. | Projector |
| CN101082761A (en) * | 2006-06-02 | 2007-12-05 | 明基电通股份有限公司 | Electronic device |
| CN101135837A (en) * | 2006-08-31 | 2008-03-05 | 精工爱普生株式会社 | Projector |
| CN101281352A (en) * | 2007-04-05 | 2008-10-08 | 深圳华强三洋技术设计有限公司 | Air discharge mechanism and projection type image display apparatus using the same |
| JP2009186720A (en) * | 2008-02-06 | 2009-08-20 | Panasonic Corp | Projection type image display device equipped with dust removing function |
| CN101644881A (en) * | 2009-09-03 | 2010-02-10 | 苏州佳世达光电有限公司 | Projector |
| CN201408318Y (en) * | 2009-01-12 | 2010-02-17 | 深圳市欧曼特微显示科技有限公司 | Heat-radiating device for LCD projector |
| CN101815968A (en) * | 2007-10-05 | 2010-08-25 | Nec显示器解决方案株式会社 | Cooling device for electronic apparatus and liquid crystal projector device with the same |
-
2011
- 2011-01-31 TW TW100103717A patent/TWI430011B/en not_active IP Right Cessation
- 2011-04-01 CN CN201110082243.0A patent/CN102621787B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060170876A1 (en) * | 2005-02-02 | 2006-08-03 | Funai Electric Co., Ltd. | Projector |
| CN101082761A (en) * | 2006-06-02 | 2007-12-05 | 明基电通股份有限公司 | Electronic device |
| CN101135837A (en) * | 2006-08-31 | 2008-03-05 | 精工爱普生株式会社 | Projector |
| CN101281352A (en) * | 2007-04-05 | 2008-10-08 | 深圳华强三洋技术设计有限公司 | Air discharge mechanism and projection type image display apparatus using the same |
| CN101815968A (en) * | 2007-10-05 | 2010-08-25 | Nec显示器解决方案株式会社 | Cooling device for electronic apparatus and liquid crystal projector device with the same |
| JP2009186720A (en) * | 2008-02-06 | 2009-08-20 | Panasonic Corp | Projection type image display device equipped with dust removing function |
| CN201408318Y (en) * | 2009-01-12 | 2010-02-17 | 深圳市欧曼特微显示科技有限公司 | Heat-radiating device for LCD projector |
| CN101644881A (en) * | 2009-09-03 | 2010-02-10 | 苏州佳世达光电有限公司 | Projector |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019782A (en) * | 2016-07-07 | 2016-10-12 | 苏州佳世达电通有限公司 | Projection device |
| CN106019782B (en) * | 2016-07-07 | 2018-01-05 | 苏州佳世达电通有限公司 | Projection arrangement |
| CN109688772A (en) * | 2019-01-17 | 2019-04-26 | 华勤通讯技术有限公司 | Mobile terminal radiator structure and mobile terminal |
| CN113031378A (en) * | 2019-12-25 | 2021-06-25 | 精工爱普生株式会社 | Projector with a light source |
| CN113031378B (en) * | 2019-12-25 | 2022-05-27 | 精工爱普生株式会社 | Projector with a light source |
| US11526071B2 (en) | 2019-12-25 | 2022-12-13 | Seiko Epson Corporation | Projector |
| CN112882329A (en) * | 2021-01-19 | 2021-06-01 | 杭州当贝网络科技有限公司 | Projector temperature control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI430011B (en) | 2014-03-11 |
| TW201232157A (en) | 2012-08-01 |
| CN102621787B (en) | 2015-02-18 |
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20150218 Termination date: 20170401 |