CN105607399A - Cooling device and method for sealing optical path of projector - Google Patents
Cooling device and method for sealing optical path of projector Download PDFInfo
- Publication number
- CN105607399A CN105607399A CN201610133025.8A CN201610133025A CN105607399A CN 105607399 A CN105607399 A CN 105607399A CN 201610133025 A CN201610133025 A CN 201610133025A CN 105607399 A CN105607399 A CN 105607399A
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- China
- Prior art keywords
- light path
- heat
- sealing light
- heat exchanger
- sealing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a cooling device and method for a sealing optical path of a projector. In the cooling device, an isolation part forms the sealing optical path, a square rod integrator is covered in the isolation part, a light source is arranged outside the sealing optical path, a light ray emitted from the light source is irradiated to an inlet of the square rod integrator through an isolation glass window, an internal fan blowing towards the square rod integrator is arranged in the sealing optical path, a heat exchanger is arranged on the outer side wall of the isolation part, one side of the heat exchanger is arranged in the sealing optical path, and the other side of the heat exchanger is arranged outside the sealing optical path and on a cooling passage of the whole system. During working, heat accumulated on an optical device is taken away by airflow of the internal fan, air after being heated passes through the passage to enter the inner side of the heat exchanger and then is cooled to cold air after heat exchange, and the air enters next circulation again through the internal fan, is repeated in such way and is continuously taken away; and after the heat of the inner side of the heat exchanger is transferred to the outside, the heat exchanger is cooled by an external fan through blowing or sucking, so that the heat exchanger can continuously transfer heat from inside to outside, and effective heat dissipation is achieved.
Description
Technical field
The invention belongs to heat dissipation technology field, relate in particular to the heat abstractor of a kind of projector sealing light pathAnd method.
Background technology
Projector is all very sensitive to dust, particularly optics (especially square rod integrator) wherein.Gathering of dust can cause the reduction of projector light efficiency and the decline of image quality. A kind of sealing of designLight path can avoid dust invasion, but this can make optics wherein--square rod integrator heatCan not scatter and disappear and cause overheated until burn out optical coating in time. Test before finds, a sealingIn light path, if there is no cooling measure, the temperature of monitoring point has even reached 378.8 DEG C, and this far awayExceed the limiting temperature that general optical coating can bear.
Conventional solution is that the square rod integrator near high temperature bulb in light path is made to opening at presentFormula structure, dispels the heat by complete machine heat dissipation wind channel, and this just requires the necessary periodic cleaning square rod integration of clientDust on device.
Summary of the invention
Main purpose of the present invention is to provide the heat abstractor of a kind of projector sealing light path, and it can haveEffect solves the damage that localized hyperthermia causes projector's square rod integrator, to ensure the service life of projectorAnd image quality.
For achieving the above object, the present invention takes following design:
A heat abstractor for projector sealing light path, have one by isolated part by projectorThe sealing light path that square rod integrator seals, light source is placed in outside sealing light path, and light source sendsLight sees through isolated part upper glass window and is irradiated to square rod integrator entrance; It is characterized in that: describedThe passage that sealing light path is loop-type, is provided with a fan inside in sealing light path, and this fan inside arrangesOn the isolation strip having a common boundary at sealing light path head and the tail and be to dry towards square rod integrator; Described projectorSquare rod integrator is positioned at described sealing light path initiation region section, area segments after square rod integratorIsolated part lateral wall on be installed on a heat exchanger, this heat exchanger one side in sealing light path in,An other side in sealing light path outside and be positioned on machine system heat dissipation channel.
In the heat abstractor of described shadow secret envelope light path, preferred, be also provided with one and can face toward heat exchangeThe external fan of device blowing or air draught, this external fan can be positioned on machine system heat dissipation channel.
In the heat abstractor of described shadow secret envelope light path, described heat exchanger adopts two-sided finnedExtrusion modling heat exchanger.
A further object of the present invention is to provide the heat dissipating method of a kind of projector sealing light path, and it can makeIn sealing light path, the heat at high temperature place is delivered to sealing light path outside in time, then by projector's complete machineCooling system discharge projector.
For achieving the above object, the present invention takes following design:
A heat dissipating method for projector's sealing light path, has the heat radiation of above-mentioned projector's sealing light pathDevice, its method is as follows:
1) start fan inside, or also start external fan simultaneously;
2) fan inside, to the initiation region section blowing of sealing light path, is positioned at the square rod integrator in this regionThe air-flow that the heat of upper accumulation is blown by fan inside is taken away, and forms heated air stream;
3) this air stream after heated arrives heat exchanger inner side after one section of passage, carries out in inner sideAfter exchange heat, lower the temperature into cold air; If started external fan simultaneously, external fan passes through simultaneouslyBlowing or air draught are lowered the temperature to heat exchanger;
4) cold air of lowering the temperature after described exchange heat continues to move ahead along sealing light path, to sealing light pathAfterbody, enters next circulation by being located at the have a common boundary fan inside at isolation strip place of sealing light path head and the tail.
Advantage of the present invention is: in light path sealing and dustproof, also the heat at high temperature place can be passed in timeBe delivered to sealing light path outside, effectively solve the optics that localized hyperthermia causes projector (especially squareRod integrator) problem damaged, ensure service life and the image quality of machine.
Brief description of the drawings
Fig. 1 is the heat abstractor one preferred embodiment structural representation of projector of the present invention sealing light path.
In figure: 1-fan inside; 2-square rod integrator; 3-insulating glass window; 4-light source; 5-hot blastPassage; 6-isolated part; 7-heat exchanger; 8-external fan; 9-cold air duct; 10-isolation strip.
Below in conjunction with drawings and the specific embodiments, the present invention is described further.
Detailed description of the invention
As shown in Figure 1, the heat abstractor of projector of the present invention sealing light path has a sealing light path,Sealing light path is by insulating glass window 3, and isolated part 6 is relative with the external world with heat exchanger 7 closeEnvelope gets up to form, and the square rod integrator 2 of projector is enclosed in wherein, as the high pressure of light source 4Mercury lamp or xenon lamp are placed in outside sealing light path, and the light that light source 4 sends sees through insulating glass window 3 and shinesBe mapped to square rod integrator 2 porch.
The passage that described sealing light path design is loop-type, in the preferred embodiment shown in Fig. 1,Orthogonal four the straight way area segments of sealing optical routing of loop-type enclose and form, be beneficial to equipment (asHeat exchanger) installation.
It (is real shown in Fig. 1 that the square rod integrator 2 of described projector is positioned at fan inside 1 air outlet placeExecuting in example, is the first straight way of initiation region section).
On the lateral wall of isolated part 6, be installed on a heat exchanger 7, this heat exchanger one side inSealing light path in, an other side in sealing light path outside and be positioned on machine system heat dissipation channel. Heat is handed overEqual on any position of the installation site of parallel operation area segments after square rod integrator 2 region sectionsCan.
In described sealing light path, be provided with a fan inside 1, this fan inside 1 is arranged on sealing lightThe isolation strip 10 (only having fan place to lead to, other position isolation) that road head and the tail have a common boundary is located, and innerFan 1, towards initiation region section (that is being square rod integrator 2 afterbodys) blowing of sealing light path, makesObtaining the heat of building up on square rod integrator is pulled away.
In specific implementation process, heat exchanger 7 can have various structures form, a kind of preferred realThe mode of executing is two-sided finned extrusion modling heat exchanger, and this heat converter structure is simple, usesReliably, it is less that size can be done, and saved projector inner space, can make projector do relativelyCompact.
Innovative point of the present invention is: first the square rod integrator 2 in sealing light path passes through insulating glassWindow 3, isolating device 6 is relative with the external world with heat exchanger 7 to be sealed, when work, opticsThe air-flow that (square rod integrator 2) upper heat of building up is blown by fan inside 1 is taken away, after heatingAir stream reaches heat exchanger 7 inner sides through hot-air channel 5, and hot-air and heat exchanger 7 enter in inner sideAfter row exchange heat, lower the temperature into cold air, again enter next circulation by fan inside 1, so pastMultiple, constantly heat is taken away; The heat of heat exchanger 7 inner sides is delivered to outer rear flank, external fan 8Lower the temperature to heat exchanger 7 by blowing or air draught so that heat exchanger 7 can be continual from interior toOuter transferring heat.
The various embodiments described above can some variations in addition under not departing from the scope of the present invention, therefore above sayingBright comprise should be considered as exemplary, but not in order to limit the protection domain of the present patent application patent.
Claims (6)
1. a heat abstractor for projector sealing light path, have one by isolated part by projectorThe sealing light path that seals of square rod integrator, light source is placed in outside sealing light path, light source sendsLight see through isolated part upper glass window be irradiated to square rod integrator entrance; It is characterized in that: described inThe sealing light path passage that is loop-type, in sealing light path, be provided with a fan inside, this fan inside is establishedPut on the isolation strip having a common boundary at sealing light path head and the tail and be to dry towards square rod integrator; Described projectorSquare rod integrator be positioned at described sealing light path initiation region section, region after square rod integratorOn the isolated part lateral wall of section, be installed on a heat exchanger, this heat exchanger one side is in sealing light pathIn, an other side in sealing light path outside and be positioned on machine system heat dissipation channel.
2. the heat abstractor of projector as claimed in claim 1 sealing light path, is characterized in that: alsoBeing provided with one can be facing to the external fan of heat exchanger blowing or air draught.
3. the heat abstractor of projector as claimed in claim 2 sealing light path, is characterized in that: instituteThe external fan of stating is positioned on machine system heat dissipation channel.
4. the heat abstractor of projector as claimed in claim 1 or 2 sealing light path, is characterized in that:Described heat exchanger adopts two-sided finned extrusion modling heat exchanger.
5. a heat dissipating method for projector's sealing light path, has projection secret claimed in claim 1The heat abstractor of envelope light path, is characterized in that method is as follows:
1) start fan inside;
2) fan inside, to the initiation region section blowing of sealing light path, is positioned at the square rod integrator in this regionThe air-flow that the heat of upper accumulation is blown by fan inside is taken away, and forms heated air stream;
3) this air stream after heated arrives heat exchanger inner side after one section of passage, carries out in inner sideAfter exchange heat, lower the temperature into cold air;
4) cold air of lowering the temperature after described exchange heat continues to move ahead along sealing light path, to sealing light pathAfterbody, enters next circulation by being located at the have a common boundary fan inside at isolation strip place of sealing light path head and the tail.
6. a heat dissipating method for projector's sealing light path, has projection secret claimed in claim 2The heat abstractor of envelope light path, is characterized in that method is as follows:
1) start fan inside and external fan;
2) fan inside, to the initiation region section blowing of sealing light path, is positioned at the square rod integrator in this regionThe air-flow that the heat of upper accumulation is blown by fan inside is taken away, and forms heated air stream;
3) this air stream after heated arrives heat exchanger inner side after one section of passage, with heat exchangerCarry out lowering the temperature into cold air after exchange heat in inner side; Meanwhile, external fan is given by blowing or air draughtHeat exchanger cooling;
4) cold air after described exchange heat continues to move ahead along sealing light path, to the afterbody that seals light path,Again enter next circulation by being located at the have a common boundary fan inside at isolation strip place of sealing light path head and the tail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133025.8A CN105607399A (en) | 2016-03-09 | 2016-03-09 | Cooling device and method for sealing optical path of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133025.8A CN105607399A (en) | 2016-03-09 | 2016-03-09 | Cooling device and method for sealing optical path of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105607399A true CN105607399A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610133025.8A Pending CN105607399A (en) | 2016-03-09 | 2016-03-09 | Cooling device and method for sealing optical path of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607399A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188833A (en) * | 2018-10-24 | 2019-01-11 | 泉州市新锐极光科技有限公司 | A kind of radiator and its method of ultra short focal projector |
| CN110455697A (en) * | 2019-08-21 | 2019-11-15 | 东南大学 | Single layer diaphragm mass-transfer performance refines measuring device |
| CN110716375A (en) * | 2019-10-28 | 2020-01-21 | 屏丽科技成都有限责任公司 | Projector with high heat dissipation capability screen frame |
| JP2021103229A (en) * | 2019-12-25 | 2021-07-15 | セイコーエプソン株式会社 | projector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003337380A (en) * | 2002-05-21 | 2003-11-28 | Sharp Corp | Projection type display |
| JP2006259119A (en) * | 2005-03-16 | 2006-09-28 | Casio Comput Co Ltd | Light source device and projector with it |
| US20120152778A1 (en) * | 2010-12-17 | 2012-06-21 | Delta Electronics, Inc. | Container and electronic apparatus assembly comprising the same |
| CN103186023A (en) * | 2013-03-13 | 2013-07-03 | 珠海中电数码科技有限公司 | No-noise projector |
| CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
-
2016
- 2016-03-09 CN CN201610133025.8A patent/CN105607399A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003337380A (en) * | 2002-05-21 | 2003-11-28 | Sharp Corp | Projection type display |
| JP2006259119A (en) * | 2005-03-16 | 2006-09-28 | Casio Comput Co Ltd | Light source device and projector with it |
| US20120152778A1 (en) * | 2010-12-17 | 2012-06-21 | Delta Electronics, Inc. | Container and electronic apparatus assembly comprising the same |
| CN103186023A (en) * | 2013-03-13 | 2013-07-03 | 珠海中电数码科技有限公司 | No-noise projector |
| CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188833A (en) * | 2018-10-24 | 2019-01-11 | 泉州市新锐极光科技有限公司 | A kind of radiator and its method of ultra short focal projector |
| CN110455697A (en) * | 2019-08-21 | 2019-11-15 | 东南大学 | Single layer diaphragm mass-transfer performance refines measuring device |
| CN110716375A (en) * | 2019-10-28 | 2020-01-21 | 屏丽科技成都有限责任公司 | Projector with high heat dissipation capability screen frame |
| JP2021103229A (en) * | 2019-12-25 | 2021-07-15 | セイコーエプソン株式会社 | projector |
| JP7358978B2 (en) | 2019-12-25 | 2023-10-11 | セイコーエプソン株式会社 | projector |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160525 |