CN102621787B - Heat radiation structure of projector - Google Patents
Heat radiation structure of projector Download PDFInfo
- Publication number
- CN102621787B CN102621787B CN201110082243.0A CN201110082243A CN102621787B CN 102621787 B CN102621787 B CN 102621787B CN 201110082243 A CN201110082243 A CN 201110082243A CN 102621787 B CN102621787 B CN 102621787B
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- fan
- channel
- projector
- air intake
- intake vent
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- 230000005855 radiation Effects 0.000 title description 7
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 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
- 238000007664 blowing Methods 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
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 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
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Projection Apparatus (AREA)
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, in more detail refers to a kind of radiator structure of projector.
Background technology
In recent years, along with the progress of image science and technology, utilize projector to carry out bulletin, video signal, meeting or the people of ornamental film and get more and more.But the internals such as the light source of projector or circuit board, the used heat produced when operating will affect the projection imaging quality of projector, more can cause shorten the serviceable life of projector.
In view of this, for making projection function effectively get rid of used heat, the design of projector cooling construction just seems particular importance.Known radiator structure is on body, arrange several air intake vent and an air outlet mostly, use and form several heat dissipation wind channels being communicated with each air intake vent and air outlet respectively in body, and utilize several fan to be installed near these air intake vents respectively, and engine body exterior is introduced respectively in this heat dissipation wind channel compared with the air of low temperature, to reach the object of dispelling the heat to the component of internal body.
But, above-mentioned heat dissipation design is utilize flow dividing structure to be divided by the air on each fan suction heat dissipation wind channel to blow to each internals to dispel the heat mostly, but this kind of design easily causes the deficiency in draught blown toward each internals, and effectively cannot reduce the temperature of internals, cause projector because of radiating effect unevident, and have influence on image quality and the serviceable life of projector.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that the radiator structure radiating effect of projector in prior art is not good, provides a kind of radiator structure of projector, has the usefulness of high heat radiation.
The technical scheme that the present invention adopts for its technical matters of solution is, provides a kind of radiator structure of projector to include body, optical devices, control circuit substrate, the first fan, the second fan and three fan.Wherein, this body has the first air intake vent, the 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 is then connected between the two ends on this first passage; Comparatively this second channel is close to this air outlet for this third channel, and this third channel one end is communicated with the 3rd air intake vent, and the other end is then connected between the two ends on this first passage; These optical devices include light source group and spatial light modulator (Spatial LightModulator); This light source is mounted on this third channel; This spatial light modulator 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 close to 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 modulator, and close to this second air intake vent; This three fan is located on this third channel, and between the 3rd air intake vent and this light source group, and close to the 3rd air intake vent.
By this, just can utilize and the air of these passages is dispelled the heat to different component respectively, then collaborate, to reach high heat dissipation efficiency.
Accompanying drawing explanation
Fig. 1 is stereoscopic figure of the present invention.
Fig. 2 is the calcspar of the present invention first preferred embodiment.
Fig. 3 is the calcspar of the present invention second preferred embodiment.
Fig. 4 is the calcspar of the present invention the 3rd preferred embodiment.
Fig. 5 discloses the present invention can set up the benchmark that temperature sensor adjusts as fan.
Embodiment
For can the present invention be illustrated more clearly in, hereby lifts preferred embodiment and coordinate accompanying drawing to be described in detail as follows.
Referring to Fig. 1 and Fig. 2, is 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 the 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 ~ 13 adopt fence type structure, not only can prevent foreign matter from entering, and can not have influence on the smoothness of inlet air.This air outlet 14 adopts shutter to design, and this design except preventing foreign matter from entering, and can not have influence on outside the smoothness of air-out, has more the effect of shading, and can avoid the quality having influence on projection because of exposure.
In addition, in this body 10, there is first passage 15, second channel 16 and third channel 17.This first passage 15 one end is communicated with this first air intake vent 11, and the other end is communicated with this air outlet 14.This second channel 16 one end is communicated with this second air intake vent 12, and the other end is then connected between the two ends on this first passage 15.Comparatively this second channel 16 is close to this air outlet 14 for this third channel 17, and this third channel 17 one end is communicated with the 3rd air intake vent 13, and the other end is then connected between the two ends on this first passage 15.
These optical devices 20 include light source group 21 and spatial light modulator 22 (Spatial LightModulator).This light source group 21 is located on this third channel 17.This light source group 21 includes white light bulb 211 and polarization conversion system camera lens 212 (Polarization Conversion System Lens, PCSLens), and this polarization conversion system camera lens 212 comparatively this white light bulb 211 close to the 3rd air intake vent 13.Certainly in design, light source group also can comply with different designs and demand, and this white light bulb 211 is changed into three primary colors bulb, or this polarization conversion system camera lens 212 is used instead collimating mirror or colour wheel replacement.
This spatial light modulator 22 is located on this second channel 16.In the present embodiment, this spatial light modulator 22 is three-chip type liquid crystal (LCD Panel) optical gate, but not as limit.In design, spatial light modulator also can be one chip liquid crystal (LCD Panel) optical gate, digital micromirror device (Digital MicromirrorDevice, DMD), silica-based liquid crystal panel (Liquid Crystal on Silicon, or palisade formula light valve (Grating Light Valve, GLV) LCoS).In addition, because 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 is electrically connected with these optical devices 20 and these electric fans 41 ~ 44, in order to control and to start these optical devices 20 and these electric fans 41 ~ 44 start.
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 close to this first air intake vent 11.This first fan 41 in order to by this first passage 15 of the air intake outside this body 10, 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 modulator 22, and close to this second air intake vent 12.This second fan 42 in order to by this second channel 16 of the air intake outside this body 10, and blows to this spatial light modulator 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 source group 21, and close to the 3rd air intake vent 13.This three fan 43 in order to by this third channel 17 of the air intake outside this body 10, and blows to this light source group 21.
4th fan 44 is multiple wing type fan (Blower Fan).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 close to the junction of this second channel 16 with this first passage 15.4th fan 44, in order to be blowed in the direction of the air of this first passage 15 and this second channel 16 toward this air outlet 14, uses the air turnover rate promoting these passages 15,16, and then increases the effect of heat radiation.In addition, 4th fan 44 the wind that blows out, also can through the junction of this third channel 17 with this first passage 15, and secondary heat radiation can be carried out to the white light bulb 211 close to this first passage 15, use the radiating effect promoted this white light bulb 211, closely extend the serviceable life of this white light bulb 211.
In addition, refer to Fig. 3, for the radiator structure of the projector 2 of the present invention second preferred embodiment, this projector 2 and above-mentioned first preferred embodiment difference in the structure of the third channel 53 of this projector 2 make three fan 63 the wind that blows out, after blowing to light source group 70, first with the second fan 62 the wind blown toward second channel 52 conflux, more together flow to first passage 51.By this, utilize above-mentioned design to increase the total blast volume on first passage 51, make the 4th fan 64 the air quantity blown toward white light bulb 71 increase, and then reach promote to white light bubble 71 radiating effect.
Moreover, refer to Fig. 4, for the radiator structure of the projector 3 of the present invention the 3rd preferred embodiment, this projector 3 and the various embodiments described above difference are that the second channel 82 of this projector 3 is connected with third channel 83, can first conflux to make the air of the second fan 92 and three fan 93 suction, and blow toward light source group 95 and spatial light modulator 96 direction, use the air quantity increasing and blow toward light source group 95 and spatial light modulator 96, and then reach preferably radiating effect.
Well known, the light source group of projector is the main source of projector's used heat always, and when the spatial light modulation actuator temperature of projector is too high, also often can cause the image fog projected or distortion.Therefore, for strengthening the heat radiation to light source group and spatial light modulator, refer to Fig. 5, based on the framework of Fig. 2, illustrate projector of the present invention more can on demand on third channel 17 close to light source group 21 place, and temperature sensor 100 is set up respectively close to spatial light modulator 22 place on this second channel 16, and these temperature sensors 100 are electrically connected with control circuit substrate 30, in order to detect the temperature of this light source group 21 and this spatial light modulator 22 respectively.
By this, when the temperature that temperature sensor 100 records light source group 21 (spatial light modulator 22) 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 (the second fan 42) gradually, the air quantity blowing to this light source group 21 (spatial light modulator 22) is promoted, and reaches the effect strengthening heat radiation.
Certainly in design, projector of the present invention also can according to user demand, and only set temperature sensor 100 on this second channel 16 or third channel 17.In addition, the temperature sensor 100 be arranged on this third channel 17 can be the temperature only sensing this white light bulb 211 or the temperature only sensing this polarization conversion system camera lens 212 or is the temperature simultaneously sensing this white light bulb 211 and this polarization conversion system camera lens 212, and as adjusting the benchmark of this three fan 43 rotating speed.Moreover, above-mentioned design is for the structure of projector 1, but not as limit, also the structure of projector 2 or projector 3 is applicable to, as long as and meet the spirit of confluxing in air channel of the present invention, and in these internals, having additional the foundation person of temperature sensor as adjustment rotation speed of the fan, 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 produce distinctly can dispel the heat via the fan in body and passage, and do not have and blow and the too small doubt causing poor heat radiation of air quantity because dividing.In addition, air outlet utilizes the design of shutter, can increase the barrier of bulb explosion time, and user does not just have the danger shot wounded by bulb particles, and then increases the security in the use of this projector.
The foregoing is only the better possible embodiments of the present invention, the equivalent structure that all application instructions of the present invention and claim are done and method for making change, ought to be included in the scope of the claims of the present invention.
Claims (10)
1. a radiator structure for projector, is characterized in that, includes:
Body, have the first air intake vent, the 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 is then connected between the two ends on this first passage; Comparatively this second channel is close to this air outlet for this third channel, and this third channel one end is communicated with the 3rd air intake vent, and the other end is then connected between the two ends on this first passage;
Optical devices, include light source group and spatial light modulator; This light source is mounted on this third channel; This spatial light modulator is located on this second channel;
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 close to this first air intake vent;
Second fan, is located on this second channel, and between this second air intake vent and this spatial light modulator, and close to this second air intake vent; And
Three fan, is located on this third channel, and between the 3rd air intake vent and this light source group, and close to the 3rd air intake vent;
Described control circuit substrate, spatial light modulator and light source group are dispelled the heat through described first, second, third passage respectively.
2. the radiator structure of projector as claimed in 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 close to the junction of this second channel and this first passage.
3. the radiator structure of projector as claimed in claim 2, it is characterized in that, the 4th fan is multiple wing type fan.
4. the radiator structure of projector as claimed in claim 1, it is characterized in that, this first fan is tubeaxial fan.
5. the radiator structure of projector as claimed in claim 1, it is characterized in that, this second fan is multiple wing type fan.
6. the radiator structure of projector as claimed in claim 1, it is characterized in that, this three fan is multiple wing type fan.
7. the radiator structure of projector as claimed in claim 1, is characterized in that, more include temperature sensor, in order to detect the temperature of this light source group; In addition, this control circuit substrate is electrically connected this temperature sensor and this three fan simultaneously, and increases according to the temperature that this temperature sensor records or reduce the rotating speed of this three fan.
8. the radiator structure of projector as claimed in claim 1, is characterized in that, more include temperature sensor, in order to detect the temperature of this spatial light modulator; In addition, this control circuit substrate is electrically connected this temperature sensor and this second fan simultaneously, and increases according to the temperature that this temperature sensor records or reduce the rotating speed of this second fan.
9. the radiator structure of projector as claimed in claim 1, it is characterized in that, this spatial light modulator is three-chip type liquid crystal photic gate.
10. the radiator structure of projector as claimed in claim 1, it is characterized in that, this air outlet is 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 CN102621787A (en) | 2012-08-01 |
| CN102621787B true 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) |
Families Citing this family (6)
| 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 |
| CN106019782B (en) * | 2016-07-07 | 2018-01-05 | 苏州佳世达电通有限公司 | Projection arrangement |
| CN111121651A (en) | 2018-10-31 | 2020-05-08 | 财团法人工业技术研究院 | Optical measurement stability control system |
| 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 |
| JP7358978B2 (en) * | 2019-12-25 | 2023-10-11 | セイコーエプソン株式会社 | projector |
| CN112882329B (en) * | 2021-01-19 | 2022-04-19 | 杭州当贝网络科技有限公司 | Projector temperature control method and system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4124201B2 (en) * | 2005-02-02 | 2008-07-23 | 船井電機株式会社 | projector |
| CN100573310C (en) * | 2006-06-02 | 2009-12-23 | 明基电通股份有限公司 | Projector |
| JP4265632B2 (en) * | 2006-08-31 | 2009-05-20 | セイコーエプソン株式会社 | projector |
| CN101281352B (en) * | 2007-04-05 | 2010-06-09 | 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 |
| JP4956837B2 (en) * | 2007-10-05 | 2012-06-20 | Ｎｅｃディスプレイソリューションズ株式会社 | Electronic device cooling apparatus and liquid crystal projector apparatus including 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 |
| CN101644881B (en) * | 2009-09-03 | 2012-06-06 | 苏州佳世达光电有限公司 | Projector |
-
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
Also Published As
| Publication number | Publication date |
|---|---|
| TW201232157A (en) | 2012-08-01 |
| TWI430011B (en) | 2014-03-11 |
| CN102621787A (en) | 2012-08-01 |
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Granted publication date: 20150218 Termination date: 20170401 |
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