CN201007777Y - Projector optical system radiating device - Google Patents
Projector optical system radiating device Download PDFInfo
- Publication number
- CN201007777Y CN201007777Y CNU2007200482902U CN200720048290U CN201007777Y CN 201007777 Y CN201007777 Y CN 201007777Y CN U2007200482902 U CNU2007200482902 U CN U2007200482902U CN 200720048290 U CN200720048290 U CN 200720048290U CN 201007777 Y CN201007777 Y CN 201007777Y
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- guiding
- air
- channel
- imaging system
- leaded light
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Abstract
The utility model relates to a projector optical system heat abstractor, which orderly comprises a first airflow channel, an imaging system centrifugal inspiration fan, a first guide duct, a second airflow channel which is formed between a liquid crystal display mechanism and a fresnel lens mechanism, a second guide duct, and a third airflow channel which is formed between the fresnel lens mechanism and a side wall of a light guide groove, a lighting system stent, a collector lens and a wind guide tablet, and all of which are in the light guide groove. The imaging system centrifugal inspiration fan is arranged on the side wall of the light guide groove and is positioned on a different side with the imaging system, the first guide duct is positioned on the same side with the imaging system centrifugal inspiration fan, the second guide duct is positioned on a different side with the imaging system centrifugal inspiration fan, and an air outlet of the third airflow channel is arranged on the side wall of the light guide groove which is positioned on the same side with the first guide duct and is communicated with extraneous air. The utility model has the advantages that the loss of wind is reduced, the heat emission efficiency is improved, the dust control effect is good, and the noise of a whole machine is reduced.
Description
Technical field:
The utility model relates to the optical system heat abstractor of projector.
Background technology:
Along with the raising of the national economic development, material life, people no longer satisfy the basic demand that can see clearly, but constantly pursue beautiful picture effect the high-end consumer goods of this class of projector.In order to satisfy the needs in market, the market competition of projector's product grows in intensity thereupon.Under the pressure of market competition, manufacturer of many projectors is in order to make projected picture more beautiful, improve constantly the brightness of projection light source bulb, but the also corresponding increase of the heat that radiation of light source produced when projection bulb's brightness is increased, be in consideration to product overall performance and serviceable life thereof, must use effective method to dispel the heat for the parts of product, each components and parts of product can be worked in the temperature range of regulation.The most effective and the direct method of head it off just is to use high-power radiator fan and increases the quantity of radiator fan.Therefore, bring negative effect can efficiently radiates heat can for again the aspects such as system's control, cost, noise of product, be the subject that this area engineering developme wants the front to face.
As shown in Figure 1, the imaging system heat radiation of existing monolithic projector be by single or multiple air-breathing dc fan 31 with its air outlet directly over against the Fresnel Lenses 32 of imaging system and an end of LCDs 33, the airflow that allows cooling fan 31 form passes through from the both sides of Fresnel Lenses 32, the both sides straight line convection current of LCDs 33 with free open form, carries out air-cooled to Fresnel Lenses 32 and LCDs 33.Existing this radiating mode, at first since the air outlet of direct current cooling fan 31 stopped over against the end face A of air-breathing dc fan 31 air outlets by a plurality of optical system components such as Fresnel Lenses 32, LCDs 33 simultaneously, so influenced the unobstructed property of blower fan 31 air drafts the noise of blower fan 31 is increased, secondly the working method of blower fan 31 this free open types can lose certain useful effect wind flow, makes the radiating efficiency of blower fan 31 reduce greatly; At last, the inlet and outlet of existing cooling fan 31 is the state that freely opens wide and carries out work, cause the dustproof construction difficult design, the reliability of properties of product and production assembling workability all will decrease, the potential failure probability of product will increase, thereby can the total quality of product be exerted an influence.
The utility model content:
The purpose of this utility model be to provide a kind of make airflow that blower fan produces can along the artificial airflow channel operation that limits come on the way need heat radiation components and parts heat radiation cooling, to greatest extent utilized blower fan cooling effectiveness, reduce operating noise, simplify the heat abstractor of the projection machine optical system of dustproof construction design
Realize projection machine optical system heat abstractor of the present utility model, comprise that successively the centrifugal suction fan of first airflow channel, imaging system, first in the leaded light groove guides second airflow channel, second that forms between air channel, LCDs mechanism and the Fresnel Lenses mechanism to guide the 3rd airflow channel that forms between air channel, Fresnel Lenses mechanism and leaded light groove sidewall, illuminator support, collector lens and the guide vane; The air inlet of first airflow channel is communicated with towards the direction of leaded light groove lower wall and with extraneous air; The centrifugal suction fan of imaging system is installed on the sidewall of leaded light groove, and with the imaging system heteropleural, the air inlet of the centrifugal suction fan of imaging system is communicated with the air outlet of first airflow channel; First guiding air channel and the centrifugal suction fan homonymy of imaging system, the air outlet of the centrifugal suction fan of imaging system is communicated with the air inlet in the first guiding air channel; The air outlet in the first guiding air channel is communicated with the air inlet of second airflow channel; Second guiding air channel and the centrifugal suction fan heteropleural of imaging system, the air outlet of second airflow channel is communicated with the air inlet in the second guiding air channel; The air outlet in the second guiding air channel is communicated with the air inlet of the 3rd airflow channel; The air outlet of the 3rd airflow channel is located on the leaded light groove sidewall with the first guiding air channel homonymy and with extraneous air and is communicated with.The centrifugal suction fan of imaging system will be by cooling off outside the distinguished and admirable discharge projection shell of relevant components and parts through first airflow channel, the centrifugal suction fan of imaging system, the first guiding air channel, second airflow channel, the second guiding air channel, the 3rd airflow channel successively towards leaded light groove lower wall direction inhaled air.Distinguished and admirable concentrate of the work of centrifugal blower and cleverly along the surface process that need carry out the optical element of radiating treatment is to reach to the purpose of components and parts cooling heat dissipation on the way.The airflow that heat abstractor of the present utility model produces blower fan is given the cooling of components and parts heat radiation on the way along the artificial airflow channel operation that limits, concentrate the airflow that produces under the centrifugal blower duty to come related elements is dispelled the heat, improve the cooling effectiveness of blower fan, can lower the use total quantity of the power and the minimizing blower fan of blower fan, isolated the propagation that wind is made an uproar simultaneously, reduced the operating noise of projector, because the air flow path relative closure that limits, the air channel is more cleaned, be convenient to the design of dust-proof mechanism.
As improvement, first airflow channel, the centrifugal suction fan of imaging system, the first guiding air channel, second airflow channel, the second guiding air channel, the projection of the formed circulation of air of the 3rd airflow channel path on leaded light groove lower wall are " S " type.The heat radiation airflow is " S " shape by the airflow path operation entire path of the roughly sealing of " S " type, further improves the cooling effectiveness of blower fan.
As further improvement, it is airtight passage that the first guiding air channel, second airflow channel, second guide the air communication channel in air channel, further improves the cooling effectiveness of blower fan on the one hand, further makes the design of cleaning air duct and simplification dust-proof mechanism on the other hand.
Common improvement as such scheme, the first guiding air channel by be installed in leaded light groove sidewall on first guiding aerofoil and the leaded light groove sidewall surround, the first guiding aerofoil opens wide towards the face of the centrifugal suction fan of imaging system with towards the face of leaded light groove sidewall, the first guiding aerofoil is provided with end difference towards the sidewall of the centrifugal suction fan of imaging system, and the centrifugal suction fan of imaging system is installed in the first guiding aerofoil and is supported on the end difference of the first guiding aerofoil; Arc transition between the face of the first guiding aerofoil and the face, the first guiding aerofoil is outward extended with first protuberance towards the periphery of the open surface of leaded light groove sidewall, and the first guiding aerofoil is fixed on the leaded light groove sidewall by first protuberance.The structure that this simplifies the first guiding air channel on the one hand reduces distinguished and admirable resistance on the other hand, improves the cooling effectiveness of blower fan.
As improvement, the second guiding air channel is surrounded by the second guiding aerofoil and the leaded light groove sidewall that are installed in leaded light groove sidewall, the second guiding aerofoil is an open surface towards the face of leaded light groove sidewall only, the periphery of the second guiding aerofoil open surface is outward extended with second protuberance, and the second guiding aerofoil is fixed on the leaded light groove sidewall by second protuberance; Arc transition between the second guiding aerofoil face and the face.The structure that this simplifies the second guiding air channel on the one hand reduces distinguished and admirable resistance on the other hand, improves the cooling effectiveness of blower fan.
As further improvement, in the air outlet position uncovered air guide hole is installed, be convenient to the circulation of air, improve the cooling effectiveness of blower fan.
The beneficial effects of the utility model are:
1, concentrates the airflow of suction fan that optical element (LCDs, lens) is dispelled the heat, reduce the windage loss consumption, improved radiating efficiency;
2, relative close type airflow channel, so that the heat radiation wind regime is carried out dustproof filter, dustproof effect is better;
3, relative close type " S " type curve air channel group is unfavorable for that the generation propagation of fan noise has reduced the complete machine noise.
Description of drawings
Fig. 1 is the cross-sectional schematic that existing projection machine optical system heat abstractor dissects from the center.
Fig. 2 is a schematic perspective view of the present utility model.
Fig. 3 is the cross-sectional schematic that the utility model dissects from the center of projection hole.
Embodiment
As Fig. 2, shown in Figure 3, the projection machine optical system heat abstractor comprises the second airtight airflow channel 7 that forms between the centrifugal suction fan 3 of first airflow channel 2, imaging system in the leaded light groove 1, airtight first guiding air channel 4, LCDs mechanism 5 and the Fresnel Lenses mechanism 6, airtight second guiding air channel 8, Fresnel Lenses mechanism 6 and collector lens 9, the illuminator support 10 successively and is installed in the 3rd airflow channel 12 of formation between the guide vane 11 of collector lens 9 one sides; The air inlet of first airflow channel 2 is communicated with towards the direction of leaded light groove 1 lower wall 13 and with extraneous air; The centrifugal suction fan 3 of imaging system is installed on the sidewall 14 of leaded light groove 1, and with imaging system 25 heteropleurals, the air inlet of the centrifugal suction fan 3 of imaging system is communicated with the air outlet of first airflow channel 2; The first guiding air channel 4 and centrifugal suction fan 3 homonymies of imaging system, the air outlet of the centrifugal suction fan 3 of imaging system is communicated with the air inlet in the first guiding air channel 4; The air outlet in the first guiding air channel 4 is communicated with the air inlet of second airflow channel 7; The second guiding air channel 8 and centrifugal suction fan 3 heteropleurals of imaging system, the air outlet of second airflow channel 7 is communicated with the air inlet in the second guiding air channel 8; The air outlet in the second guiding air channel 8 is communicated with the air inlet of the 3rd airflow channel 12; The air outlet of the 3rd airflow channel 12 is located on the leaded light groove sidewall 14 with first guiding air channel 4 homonymies and with extraneous air and is communicated with, and in the air outlet position uncovered air guide hole 16 is installed.First airflow channel 2, the centrifugal suction fan 3 of imaging system, the first guiding air channel 4, second airflow channel 7, the second guiding air channel 8,12 projections of formed circulation of air path on leaded light groove 1 lower wall of the 3rd airflow channel are " S " type.
The first guiding air channel 4 surrounds by being installed in the guiding of first on the leaded light groove sidewall 15 aerofoil 17, the first guiding aerofoil 17 opens wide towards the face 18 of the centrifugal suction fan 3 of imaging system with towards the face 19 of leaded light groove sidewall 15, the first guiding aerofoil 17 is provided with end difference 20 towards the sidewall of the centrifugal suction fan 3 of imaging system, and the centrifugal suction fan 3 of imaging system is installed in the first guiding aerofoil 17 and is supported on the end difference 20 of the first guiding aerofoil 17; Arc transition between the face of the first guiding aerofoil 17 and the face, the first guiding aerofoil 17 is outward extended with the first protuberance (not shown) towards the periphery of the open surface of leaded light groove sidewall 15, and the first guiding aerofoil 17 is fixed on the leaded light groove sidewall 15 by first protuberance.
The second guiding air channel 8 is surrounded with leaded light groove sidewall 21 by the second guiding aerofoil 22 that is installed in leaded light groove sidewall 21, the second guiding aerofoil 22 is an open surface towards the face 23 of leaded light groove sidewall 21 only, the periphery of the open surface of the second guiding aerofoil 22 is outward extended with second protuberance 24, the second guiding aerofoil 22 is fixed on the leaded light groove sidewall 21 by second protuberance 24, arc transition between second 22 of the aerofoils of guiding and the face.
| Projector's condition of work | |||
| Environment temperature: 38 ℃ | Light source power: 200W | ||
| Project | New structure | General structure | Deviation |
| Display screen temperature | 55℃ | 68℃ | -13℃ |
| The product operating noise | 50dB | 60dB | -10dB |
Table 1
As shown in table 1, as seen projector works under certain condition, new structure has reduced-13 ℃ and 10dB at display screen temperature and complete machine work wind respectively aspect making an uproar, further prove the existing scheme of this scheme at radiating effect, resist that wind is made an uproar and optical system all has remarkable improvement aspect dustproof.
Claims (6)
1. the projection machine optical system heat abstractor is characterized in that comprising successively that the centrifugal suction fan of first airflow channel, imaging system, first in the leaded light groove guides second airflow channel, second that forms between air channel, LCDs mechanism and the Fresnel Lenses mechanism to guide the 3rd airflow channel that forms between air channel, Fresnel Lenses mechanism and leaded light groove sidewall, illuminator support, collector lens and the guide vane; The air inlet of first airflow channel is communicated with towards the direction of leaded light groove lower wall and with extraneous air; The centrifugal suction fan of imaging system is installed on the sidewall of leaded light groove, and with the imaging system heteropleural, the air inlet of the centrifugal suction fan of imaging system is communicated with the air outlet of first airflow channel; First guiding air channel and the centrifugal suction fan homonymy of imaging system, the air outlet of the centrifugal suction fan of imaging system is communicated with the air inlet in the first guiding air channel; The air outlet in the first guiding air channel is communicated with the air inlet of second airflow channel; Second guiding air channel and the centrifugal suction fan heteropleural of imaging system, the air outlet of second airflow channel is communicated with the air inlet in the second guiding air channel; The air outlet in the second guiding air channel is communicated with the air inlet of the 3rd airflow channel; The air outlet of the 3rd airflow channel is located on the leaded light groove sidewall with the first guiding air channel homonymy and with extraneous air and is communicated with.
2. projection machine optical system heat abstractor as claimed in claim 1 is characterized in that first airflow channel, the centrifugal suction fan of imaging system, the first guiding air channel, second airflow channel, the second guiding air channel, the projection of the formed circulation of air of the 3rd airflow channel path on leaded light groove lower wall are " S " type.
3. projection machine optical system heat abstractor as claimed in claim 2 is characterized in that the air communication channel in the first guiding air channel, second airflow channel, the second guiding air channel is an airtight passage.
4. as any described projection machine optical system heat abstractor of claim 1 to 3, it is characterized in that the first guiding air channel by be installed in leaded light groove sidewall on first guiding aerofoil and the leaded light groove sidewall surround, the first guiding aerofoil opens wide towards the face of the centrifugal suction fan of imaging system with towards the face of leaded light groove sidewall, the first guiding aerofoil is provided with end difference towards the sidewall of the centrifugal suction fan of imaging system, and the centrifugal suction fan of imaging system is installed in the first guiding aerofoil and is supported on the end difference of the first guiding aerofoil; Arc transition between the face of the first guiding aerofoil and the face, the first guiding aerofoil is outward extended with first protuberance towards the periphery of the open surface of leaded light groove sidewall, and the first guiding aerofoil is fixed on the leaded light groove sidewall by first protuberance.
5. projection machine optical system heat abstractor as claimed in claim 4, it is characterized in that the second guiding air channel is surrounded by the second guiding aerofoil and the leaded light groove sidewall that are installed in leaded light groove sidewall, the second guiding aerofoil is an open surface towards the face of leaded light groove sidewall only, the periphery of the second guiding aerofoil open surface is outward extended with second protuberance, and the second guiding aerofoil is fixed on the leaded light groove sidewall by second protuberance; Arc transition between the second guiding aerofoil face and the face.
6. projection machine optical system heat abstractor as claimed in claim 5 is characterized in that being equipped with in the air outlet position worn-out mouthful air guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200482902U CN201007777Y (en) | 2007-02-05 | 2007-02-05 | Projector optical system radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200482902U CN201007777Y (en) | 2007-02-05 | 2007-02-05 | Projector optical system radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201007777Y true CN201007777Y (en) | 2008-01-16 |
Family
ID=39003725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200482902U Expired - Fee Related CN201007777Y (en) | 2007-02-05 | 2007-02-05 | Projector optical system radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201007777Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563902A (en) * | 2022-03-11 | 2022-05-31 | 深圳市火乐科技发展有限公司 | Projection optical machine and projection equipment |
-
2007
- 2007-02-05 CN CNU2007200482902U patent/CN201007777Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563902A (en) * | 2022-03-11 | 2022-05-31 | 深圳市火乐科技发展有限公司 | Projection optical machine and projection equipment |
| CN114563902B (en) * | 2022-03-11 | 2023-10-03 | 深圳市火乐科技发展有限公司 | Projection optical machine and projection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20140205 |