CN1405622A - Projector bulb cooling system with double exhaust fan - Google Patents
Projector bulb cooling system with double exhaust fan Download PDFInfo
- Publication number
- CN1405622A CN1405622A CN 01140611 CN01140611A CN1405622A CN 1405622 A CN1405622 A CN 1405622A CN 01140611 CN01140611 CN 01140611 CN 01140611 A CN01140611 A CN 01140611A CN 1405622 A CN1405622 A CN 1405622A
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- China
- Prior art keywords
- bulb
- fan
- extraction fan
- cooling system
- extraction
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Abstract
A projector bulb cooling system with double exhaust fans includes a bulb, a first exhaust fan and a second exhaust fan in which the two fans are used in forming gas flow inside and outside of the bulb matching for cooling the bulb.
Description
Technical field
The present invention relates to a kind of optical projection system, particularly relate to employed a kind of projector bulb cooling system in the projector with double exhaust fan.
Figure viewed from behind technology
Along with projector's development of technology, the projector of new listing often has high more bulb power more, makes projector projection go out more distinct image on bigger screen, watches together for more spectators.A kind of existing projector, bulb with 270W, this high power bulb produces the problem of high temperature heat radiation, in order to cool off the temperature of this high power bulb, the projector of prior art uses single high-revolving extraction fan, the noise level that causes whole projector is up to 39dB, and this noise level can make general user produce discomfort.In addition, the high rotating speed of extraction fan also causes the shortcoming that shortens its serviceable life.
If in projector, use two slow-speed of revolution extraction fans can avoid each shortcoming of prior art fully.Through experiment confirm, can make the noise level of whole projector be reduced to 32dB really, promptly reduce the noise level of 7dB than the prior art.Those skilled in the art know, the noise level of every reduction 3dB, even noise energy reduces by half, the noise level that reduces 7dB is meaning noise energy is being reduced to below 1/4th, and the optical projection system that can realize These parameters is provided, and will be present problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of projector bulb cooling system with double exhaust fan, wherein the rotating speed of each extraction fan only is about half of its specified maximum speed 4800r.p.m., promptly only about 2400r.p.m., and the noise level that it produced is quite low.
Another object of the present invention is to provide a kind of projector bulb cooling system with double exhaust fan, wherein the rotating speed of each extraction fan only is about half of its specified maximum speed 4800r.p.m., promptly only about 2400r.p.m. is so have quite long serviceable life.
The object of the present invention is achieved like this, and a kind of projector bulb cooling system with double exhaust fan promptly is provided, and comprising: a bulb; One first extraction fan; And one second extraction fan, wherein this first extraction fan and this second extraction fan are in order in the inside and the outside air-flow that forms of this bulb, to cooperate this bulb of cooling.
The present invention also provides a kind of bulb cooling system with double exhaust fan, comprising: a bulb; One first extraction fan; And one second extraction fan, wherein this first extraction fan and this second extraction fan are in order in the inside and the outside air-flow that forms of this bulb, to cooperate this bulb of cooling.
The advantage of system of the present invention is that the rotating speed of each extraction fan only is about half of its specified maximum speed 4800r.p.m., is 2400r.p.m., and its noise is low, and long service life.
Description of drawings
Fig. 1 is a synoptic diagram, and it shows a kind of projector bulb cooling system with double exhaust fan according to preferred embodiment of the present invention.
Concrete implementation content
See also Fig. 1, comprise the bulb 10 that is installed in the projector (not shown), depend on two axial-flow type extraction fans 20 and 30 on the projector shell 50, be installed in the fan blower 40 in this projector according to a kind of projector bulb cooling system 1 of preferred embodiment of the present invention with double exhaust fan.In this preferred embodiment, the thickness of projector is 80mm, and extraction fan 20 and 30 size all are 70 * 70 * 20mm, and the power of bulb 10 is 270W.
Bulb 10 has a reflex housing outside surface 12, comprise lampwick portion 11 in the bulb 10, two axial-flow type extraction fans 20 and 30 depend on the projector shell 50, and first extraction fan 20 is adjacent to the front end of bulb 10, and second extraction fan 30 is adjacent to the rear end of bulb 10.A fan blower 40 is established in the place ahead of bulb 10, and the air outlet of fan blower 40 is towards lampwick portion 11.
As shown in fig. 1, dividing plate 60 will be divided into two road air-flows in order to the air-flow of cooling bulb 10, wherein extraction fan 20 and the fan blower 40 common air-flows 80 that produce are in order to the lampwick portion 11 of cooling bulb 10, and the air-flow 90 of the extraction fan 30 of flowing through is in order to the reflex housing outside surface 12 of cooling bulb 10.By experimental result as can be known, the heat taken away from the outside of bulb 10 of the heat taken away from the lampwick portion 11 of bulb 10 of air-flow 80 and air-flow 90 is similar.Owing to use two extraction fans 20 and 30 simultaneously, so rotating speed that extraction fan 20 and 30 all only need about 2400r.p.m., can reach the required effect of cooling bulb 10, and experimental result, the only about 32dB of noise level of whole projector, promptly, reduce the noise level of 7dB than the noise level of prior art 39dB.Those of ordinary skill in the art know that the noise level of every reduction 3dB can make noise energy reduce by half, and the noise level that reduces 7dB means noise energy is reduced to below 1/4th, so the present invention obviously has outstanding progressive effect.Again since extraction fan 20 and 30 all only need about 2400r.p.m. rotating speed, and do not need, so extraction fan 20 and 30 all can have the serviceable life of quite growing with its specified maximum speed 4800r.p.m. rotation.
Above-described, only be that scope of the present invention is not limited to this preferred embodiment, and is all by any change that the present invention did, and all belongs to the protection domain of claim of the present invention in order to a convenient explanation preferred embodiment of the present invention.
Claims (14)
1. projector bulb cooling system with double exhaust fan comprises:
One bulb;
One first extraction fan; And
One second extraction fan,
Wherein this first extraction fan and this second extraction fan cool off this bulb in order in the inside and the outside air-flow that forms of this bulb to cooperate.
2. according to the described a kind of projector bulb cooling system with double exhaust fan of claim 1, wherein this first extraction fan and second extraction fan all are the axial-flow type extraction fan.
3. according to the described a kind of projector bulb cooling system with double exhaust fan of claim 1, wherein the noise level that caused jointly of this first extraction fan and second extraction fan is less than or equal to 35dB.
4. according to the described a kind of projector bulb cooling system with double exhaust fan of claim 1, wherein the noise level that caused jointly of this first extraction fan and second extraction fan is less than or equal to 32dB.
5. according to the described a kind of projector bulb cooling system with double exhaust fan of claim 1, wherein the rotating speed of this first extraction fan and second extraction fan all is less than or equal to 3000r.p.m..
6. according to the described a kind of projector bulb cooling system with double exhaust fan of claim 1, wherein the rotating speed of this first extraction fan and second extraction fan all is less than or equal to 2500r.p.m..
7. according to the described a kind of projector bulb cooling system of claim 1 with double exhaust fan, wherein this bulb has a lampwick portion, this projector bulb cooling system with double exhaust fan also comprises a fan blower, itself and this first extraction fan forms one first road air-flow jointly, in order to cool off this lampwick portion, and this second extraction fan forms one second road air-flow, in order to cool off the reflex housing outside surface of this bulb.
8. bulb cooling system with double exhaust fan comprises:
One bulb;
One first extraction fan; And
One second extraction fan,
Wherein this first extraction fan and this second extraction fan cool off this bulb in order in the inside and the outside air-flow that forms of this bulb to cooperate.
9. according to the described a kind of bulb cooling system with double exhaust fan of claim 8, wherein this first extraction fan and second extraction fan all are the axial-flow type extraction fan.
10. according to the described a kind of bulb cooling system with double exhaust fan of claim 8, wherein the noise level that caused jointly of this first extraction fan and second extraction fan is less than or equal to 35dB.
11. according to the described a kind of bulb cooling system with double exhaust fan of claim 8, wherein the noise level that caused jointly of this first extraction fan and second extraction fan is less than or equal to 32dB.
12. according to the described a kind of bulb cooling system with double exhaust fan of claim 8, wherein the rotating speed of this first extraction fan and second extraction fan all is less than or equal to 3000r.p.m..
13. according to the described a kind of bulb cooling system with double exhaust fan of claim 8, wherein the rotating speed of this first extraction fan and second extraction fan all is less than or equal to 2500r.p.m..
14. according to the described a kind of bulb cooling system of claim 8 with double exhaust fan, wherein this bulb has a lampwick portion, this projector bulb cooling system with double exhaust fan also comprises a fan blower, itself and this first extraction fan forms one first road air-flow jointly, in order to cool off this lampwick portion, and this second extraction fan forms one second road air-flow, in order to cool off the reflex housing outside surface of this bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01140611 CN1232883C (en) | 2001-09-18 | 2001-09-18 | Projector bulb cooling system with double exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01140611 CN1232883C (en) | 2001-09-18 | 2001-09-18 | Projector bulb cooling system with double exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405622A true CN1405622A (en) | 2003-03-26 |
| CN1232883C CN1232883C (en) | 2005-12-21 |
Family
ID=4675990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01140611 Expired - Fee Related CN1232883C (en) | 2001-09-18 | 2001-09-18 | Projector bulb cooling system with double exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1232883C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165588B (en) * | 2006-10-19 | 2010-06-02 | 三洋电机株式会社 | Gas exhaust mechanism and projection type image displaying device employing the same |
| 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 |
| CN102162985A (en) * | 2010-02-18 | 2011-08-24 | 索尼公司 | Projector apparatus |
-
2001
- 2001-09-18 CN CN 01140611 patent/CN1232883C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165588B (en) * | 2006-10-19 | 2010-06-02 | 三洋电机株式会社 | Gas exhaust mechanism and projection type image displaying device employing the same |
| 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 |
| CN102162985A (en) * | 2010-02-18 | 2011-08-24 | 索尼公司 | Projector apparatus |
| US9091907B2 (en) | 2010-02-18 | 2015-07-28 | Sony Corporation | Projector apparatus having a reflector arranged to cover a light-emitting tube which provides high cooling efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1232883C (en) | 2005-12-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051221 Termination date: 20200918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |