CN102289139B - Heat radiating system of whole machine of laser projector - Google Patents
Heat radiating system of whole machine of laser projector Download PDFInfo
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- CN102289139B CN102289139B CN2011102386402A CN201110238640A CN102289139B CN 102289139 B CN102289139 B CN 102289139B CN 2011102386402 A CN2011102386402 A CN 2011102386402A CN 201110238640 A CN201110238640 A CN 201110238640A CN 102289139 B CN102289139 B CN 102289139B
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Abstract
The invention discloses a heat radiating system of the whole machine of a laser projector. A first wind inlet and a second wind inlet are respectively arranged on both sides of an optical engine module of the heat radiating system; a heating module not provided with a heat radiating fan is arranged near the first wind inlet; a heating module provided with the heat radiating fan is arranged near the wind outlet of the whole machine; a laser light source module is provided with a priority heat radiating fan and a special wind outlet and is assisted with a necessary wind inductive structure so that a first part of wind flow which enters from the second wind inlet is discharged by the priority heat radiating fan from the special wind outlet; the rest part of wind flow which enters from the second wind inlet and the entire wind flow which enters from the first wind inlet are discharged by the heat radiating fan from the wind outlet of the whole machine, so as to prevent the laser light source module from being heat for the second time and ensure that the laser light source module works stably under lower working environment temperature; the heat radiation of the rest parts of the whole machine can also meet requirements; energy is saved; and the heat radiating system is mainly applied to the laser projector.
Description
Technical field
The present invention relates to a kind of heat radiating system of whole machine of projector, especially a kind of heat radiating system of whole machine of laser projection.
Background technology
Laser projection adopts the red, green, blue tricolor laser of high color saturation as display light source.LASER Light Source belongs to solid state light emitter as the high directivity light source of crystal/semiconductor structure, and is very responsive to temperature, and the standard operation temperature of General Requirements laser light source module is 25 ℃, and operating temperature range is-10 ℃～50 ℃.In the situation that laser output wavelength is stable, often adopt thermoelectric refrigerating unit (TEC) that it is carried out high-precision temperature control, to guarantee the normal stable operation of laser instrument at present.
At present, use projector's product of LASER Light Source, for guaranteeing to satisfy the temperature control requirement of laser generator, often the heat abstractor of its laser light source module is independent and sealing with respect to heat radiating system of whole machine, cause the cooling system of laser light source module not carry out effective combination with heat radiating system of whole machine, this dispels the heat to complete machine with regard to the extra radiator fan that increases of needs, even the rotating speed that further improves radiator fan is to obtain larger air quantity, to satisfy other heating module such as laser drive circuit module in the complete machine, the switch mode power supply module, the complete machine power module, the radiating requirements of optical engine module.
Yet, if laser light source module adopts dependent and open heat abstractor, the local working environment of laser light source module often is subject to again the post bake of hot-air impact after other heating module heat exchange in the complete machine, greatly reduces the radiating efficiency of laser light source module region.In order to guarantee the steady operation of laser light source module, equally must by as improve corresponding radiator fan rotating speed, increase the measure such as number of fans and solve.So, both increase the cost of product, increased again the work noise of product, reduced the competitiveness of product in market.
Summary of the invention
For the radiator fan that overcomes existing laser projection heat radiating system of whole machine complete machine or laser light source module fails to take full advantage of, so that produce the deficiency of energy dissipation, technical matters to be solved by this invention provides a kind of heat radiating system of whole machine of more energy-conservation laser projection.
The technical solution adopted for the present invention to solve the technical problems is: the heat radiating system of whole machine of laser projection, comprise laser light source module and other heating module, heating module comprises the first kind heating module that has been equipped with radiator fan and the Equations of The Second Kind heating module that is not equipped with radiator fan, corresponding configuration has the complete machine air outlet near the radiator fan, described Equations of The Second Kind heating module comprises optical engine module, the both sides of optical engine module arrange respectively the first air inlet and the second air inlet, the Equations of The Second Kind heating module is arranged near the first air inlet, first kind heating module is put near the complete machine air outlet, laser light source module is equipped with preferential radiator fan and special-purpose air outlet, a part that is entered by the second air inlet is distinguished and admirable to be derived from special-purpose air outlet by preferential radiator fan, and the remainder that is entered by the second air inlet is distinguished and admirable and by whole distinguished and admirablely then being derived from the complete machine air outlet by radiator fan that the first air inlet enters.
Described Equations of The Second Kind heating module comprises the complete machine power module, and described first kind heating module comprises switch mode power supply module and laser drive circuit module.
Described radiator fan is included as the first radiator fan that the switch mode power supply module is equipped with, described complete machine air outlet comprises the first complete machine air outlet, the first radiator fan is positioned near the first complete machine air outlet, is connected with guide duct between the first radiator fan and the first complete machine air outlet.
Described switch mode power supply module is arranged near the second air inlet.
Described radiator fan is included as the second radiator fan that the laser drive circuit module is equipped with, and described complete machine air outlet comprises the second complete machine air outlet, and the second radiator fan is positioned near the second complete machine air outlet.
Described laser drive circuit module periphery is provided with air guide box, is provided with guide vane between the second radiator fan and the second complete machine air outlet.
Described complete machine power module periphery is provided with wind scooper, and part the first air inlet is contained in the import of wind scooper, and the outlet of wind scooper is away from preferential radiator fan but near the second radiator fan.
Heating radiator is equipped with on the described optical engine module, the described distinguished and admirable described heating radiator of flowing through of part of not shunted by wind scooper that is entered by the first air inlet.
Described laser light source module also is equipped with thermoelectric refrigerating unit and corresponding heat-pipe radiating apparatus, and preferential radiator fan opposite heat tube heat abstractor cools off.
The invention has the beneficial effects as follows: the laser light source module fan adopts dependent and open heat abstractor, additionally do not increasing under the condition of radiator fan, the preferential radiator fan that takes full advantage of the radiator fan of each first kind heating module and be equipped with for laser light source module, be aided with necessary air guide structure, the air-out air channel that makes main heat generating components is independent and heat dissipation wind channel mutually combines, avoid simultaneously laser light source module to be subject to the post bake impact of complete machine internal heat air, thereby formed more rational heat dissipation wind channel system layout, so that effective and reasonable the combining of heat radiation of the heat radiation of laser generator and complete machine all parts, particularly can guarantee laser light source module steady operation under lower operating ambient temperature, be conducive to improve the stability of laser light source module work, guarantee that simultaneously the heat radiation of complete machine remaining part also can both meet the demands.Because do not need to increase fan or improve rotation speed of the fan, therefore heat radiating system of whole machine of the present invention is more energy-conservation, cost-saved or noise decrease is mainly used in laser projection.
Description of drawings
Fig. 1 is the air inlet of heat radiating system of whole machine of the present invention and the position view of part air outlet.
Fig. 2 is the position view of another part air outlet of heat radiating system of whole machine of the present invention.
Fig. 3 is heat radiating system of whole machine air-flow schematic diagram of the present invention.
Fig. 4 is heating module in the heat radiating system of whole machine of the present invention, radiator fan and air guide structure schematic diagram.
Fig. 5 is the three-dimensional view of switch mode power supply module and radiator fan thereof.
Fig. 6 is the three-dimensional view of Laser Driven power module and radiator fan thereof.
Fig. 7 is the three-dimensional view of laser light source module and radiator fan thereof.
Be labeled as machine shell 10 among the figure, Peripheral Interface module 11, switch machine 12, power interface 13, guide duct 14, fixed base plate 15, fixed mount 16, switch mode power supply module 17, optical engine module 18, wind scooper 19, complete machine power module 20, guide vane 21, laser drive circuit module 22, circuit main board 23, laser light source module 24, the first air inlet 101, the second air inlet 100, the second complete machine air outlet 102, special-purpose air outlet 103, the first complete machine air outlet 104, the first radiator fan 170, air intake vent 171, air intake vent 172, air intake vent 173, heating radiator 180, air guide box 220, air intake vent 221, the second radiator fan 222, laser generator 240, preferential radiator fan 241, fan Fixture 242, heat pipe 243, heat radiation combination fin 244, the cooling base 245 that contains thermoelectric refrigerating unit.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Such as Fig. 1～shown in Figure 7, the heating module of laser projection is except laser light source module 24, also has laser drive circuit module 22, switch mode power supply module 17, complete machine power module 20, other heating module of optical engine module 18 grades, heating module comprises the first kind heating module that has been equipped with radiator fan and the Equations of The Second Kind heating module that is not equipped with radiator fan, corresponding configuration has the complete machine air outlet near the radiator fan, for guaranteeing can not cause negative effect to form the heat wave phenomenon to the image that camera lens irradiates through the hot-air behind the cooling heat transferring, guarantee the projection imaging quality, optical engine module 18 is not equipped with radiator fan specially, and the first air inlet 101 and the second air inlet 100 are set respectively in the both sides of optical engine module 18; Laser light source module 24 is equipped with preferential radiator fan 241 and special-purpose air outlet 103, first kind heating module is put near the complete machine air outlet, the Equations of The Second Kind heating module is arranged near the first air inlet 101, a part that is entered by the second air inlet 100 is distinguished and admirable to be derived from special-purpose air outlet 103 by preferential radiator fan 241, the remainder that is entered by the second air inlet 100 is distinguished and admirable and by whole distinguished and admirablely then being derived from the complete machine air outlet by radiator fan that the first air inlet 101 enters, avoided laser light source module 24 to be subject to the post bake impact of hot-air, thereby guaranteed laser light source module steady operation under lower operating ambient temperature, be conducive to improve the stability of laser light source module work, the simultaneously heat radiation of complete machine remaining part requires also can both guarantee.Because do not need to increase fan or improve rotation speed of the fan, therefore heat radiating system of whole machine of the present invention is more energy-conservation, cost-saved or noise decrease.
In the different laser projection products, volume size according to its heating module, and each heating module requirement of dispelling the heat accordingly, can on the basis that does not break away from such scheme, reasonably be arranged in the position of other heating module except laser light source module 24 and adjust, determine which heating module is as first kind heating module, which heating module is as the Equations of The Second Kind heating module, and then decision air-admitting surface, air outlet position, air quantity, the position of radiator fan, power, and the form of corresponding air guide structure.For example shown in Figure 3, described Equations of The Second Kind heating module comprises complete machine power module 20, and described first kind heating module comprises switch mode power supply module 17 and laser drive circuit module 22.
Such as Fig. 3, Fig. 4 and shown in Figure 5, described radiator fan is included as the first radiator fan 170 that switch mode power supply module 17 is equipped with, described complete machine air outlet comprises the first complete machine air outlet 104, the first radiator fan 170 is positioned near the first complete machine air outlet 104, is connected with guide duct 14 between the first radiator fan 170 and the first complete machine air outlet 104.
Such as Fig. 3, Fig. 4 and shown in Figure 5, described switch mode power supply module 17 is arranged near the second air inlet 100, the part that is entered by the second air inlet 100 distinguished and admirable under 170 effects of the first radiator fan to 17 heat radiations of switch mode power supply module, and after heat exchange, discharged by the first complete machine air outlet 104.
Such as Fig. 3, Fig. 4 and shown in Figure 6, described radiator fan is included as the second radiator fan 222 that laser drive circuit module 22 is equipped with, and described complete machine air outlet comprises that the second complete machine air outlet 102, the second radiator fans 222 are positioned near the second complete machine air outlet 102.
Such as Fig. 3, Fig. 4 and shown in Figure 6, described laser drive circuit module 22 peripheries are provided with air guide box 220, be provided with guide vane 21 between the second radiator fan 222 and the second complete machine air outlet 102, under the guiding of air guide box 220 and guide vane 21, the air that had carried out heat interchange with the Equations of The Second Kind heating module cools off laser drive circuit module 22.
Such as Fig. 3, Fig. 4 and shown in Figure 7, described complete machine power module 20 peripheries are provided with wind scooper 19, part the first air inlet 101 is contained in the import of wind scooper 19, the cold airflow shunting of forcing just to have entered from the first air inlet 101 is cooled off complete machine power module 20, more effectively reduces the working temperature of complete machine power module 20; The outlet of wind scooper 19 is not carried out post bake to laser light source module 24 away from preferential radiator fan 241 but near the second radiator fan 222 to guarantee the air after the heat exchange, guarantees to have lower temperature in complete machine inner laser light source module 24 regions.
As shown in Figure 4, satisfy the heat radiation requirement for guaranteeing optical engine module 18, preferably be equipped with heating radiator 180 on the described optical engine module 18, the described distinguished and admirable described heating radiator 180 of flowing through of part of not shunted by wind scooper 19 that is entered by the first air inlet 101.
As shown in Figure 7, satisfy the heat radiation requirement for guaranteeing laser light source module 24, described laser light source module 24 also is equipped with thermoelectric refrigerating unit and corresponding heat-pipe radiating apparatus usually, and preferential radiator fan 241 opposite heat tube heat abstractors cool off.
Embodiment:
Such as Fig. 1～Figure 7 shows that preferred embodiment of the heat radiating system of whole machine of laser projection of the present invention.
One laser projection and cooling system thereof comprise: machine shell 10, Peripheral Interface module 11, switch machine 12, power interface 13, fixed base plate 15, laser light source module 24 with heat abstractor, laser drive circuit module 22, switch mode power supply module 17, optical engine module 18, fixed mount 16, complete machine power module 20, circuit main boards 23 etc. are except laser light source module 24 has been equipped with preferential radiator fan 241, according to corresponding heating module volume and heat radiation requirement, with laser drive circuit module 22, switch mode power supply module 17 is as first kind heating module, corresponding first radiator fan 170 that has been equipped with, the second radiator fan 222, as the Equations of The Second Kind heating module, be not equipped with radiator fan with optical engine module 18 and complete machine power module 20.
As shown in Figure 3, the cooling system of whole laser projection adopts and is being provided with the front side air intake of optical engine module 18, the mode of left side, right side and rear side air-out, the radiator fan that takes full advantage of each first kind heating module drives the operation of complete machine cooling draught, does not additionally increase radiator fan.
Such as Fig. 1, Fig. 2, shown in Figure 3, the heating module of whole laser projection is to arrange like this at base plate 15: before optical engine module 18 is arranged on, its left side is laser beginning power module 17, its right side is complete machine power module 20, after laser light source module 24 and laser drive circuit module 22 are arranged on, laser light source module 24 wherein position keeps left and keep right in laser drive circuit module 22 positions, corresponding cooling system of the present invention comprises: be positioned at the second air inlet 100 that the front side keeps left and be positioned at the first air inlet 101 of keeping right in the front side, be positioned at the special-purpose air outlet 103 that rear side keeps left, and lay respectively at the second complete machine air outlet 102 after forward the first complete machine air outlet 104 in left side and right side are leaned on; The incoming air area of the first air inlet 101 is less than the incoming air area of the second air inlet 100, and total air-out volume of the second complete machine air outlet 102 is not less than the air-out volume of special-purpose air outlet 103, can guarantee like this can turn to the right side to discharge complete machine from the second complete machine air outlet 102 on right side by the part air-flow that the second air inlet 100 enters, form through heat exchange with the cooling draught that effectively prevents from entering from the first air inlet 101 and again to enter left air path behind the hot-air 24 of LASER Light Source moulds are caused post bake, affect the stability of LASER Light Source work.
As shown in Figure 3, Figure 4, there is a guide duct 14 directly to connect the first radiator fan 170 and the first complete machine air outlet 104 of switch mode power supply module 17, after cooling draught enters from the first air inlet 100 so again respectively the air intake vent 171,172,173 by switch mode power supply module 17 enter, the hot-air that carries out after the heat exchange is taken out of by the first radiator fan 170 and is discharged by the first complete machine air outlet 104, to prevent that effectively the hot-air after the heat exchange from entering the zone of laser light source module 24 and it is caused post bake, affects the stability of LASER Light Source work.
As shown in Figure 3, Figure 4, there is a wind scooper 19 to be connected with the first air inlet 101 and the first air inlet 101 is divided into up and down two parts; Wind scooper 19 covers complete machine power module 20, can skim over complete machine power module 20 with the cooling draught of forcing to enter on the lower from the first air inlet 101, more effectively reduces the working temperature of complete machine power module 20; Then can skim over the heating radiator 180 of optical engine module 18 from the first air inlet 101 top cooling draughts that enter, be sucked by laser drive circuit module 22 after converging through the cooled hot-air of heat exchange and the air-flow that skims over complete machine power module 20.
Such as Fig. 3, Fig. 4 and shown in Figure 6, laser drive circuit module 22 is covered with air guide box 220, there is a guide vane 21 to connect the second complete machine air outlet 102 and air guide box 220, laser drive circuit module 22 is equipped with two the second radiator fans 222, be provided with two air intake vents 221 on the air guide box 220, the second radiator fan 222 enters air intake vent 221 with the cooling draught that the exhausting mode drives after the above-mentioned heat exchange, extracted out by the second radiator fan 222 after the heat exchange, under the guiding of guide vane 21 by 02 discharging in the complete machine air outlet.
As shown in Figure 7, the laser light source module 24 that has a heat abstractor comprises laser generator 240, contains the cooling base 245 of thermoelectric refrigerating unit, some heat pipes 243, heat radiation combination fin 244, preferential radiator fan 241, fan Fixture 242 etc.; Laser light source module 24 is positioned near the special-purpose air outlet 103 of rear side; Preferential radiator fan 241 sucks the cooling draught that enters from the second air inlet 100, and heat radiation combination fin 244 is forced quenching, and the hot-air after the heat exchange is directly discharged by special-purpose air outlet 103.
In the above-mentioned heat radiating system of whole machine, the air-out air channel of each main heating module is relatively independent and heat dissipation wind channel mutually combines, when having guaranteed that all parts satisfies the heat radiation needs, avoid again laser light source module to be subject to the post bake impact of hot-air, be conducive to improve the stability of laser light source module work.
After adopting above-mentioned heat radiating system of whole machine of the present invention, compare with the existing laser projection of enclosed radiation mode with the laser light source module employing is independent, complete machine can reduce by 1～2 radiator fan, namely saves the cost of 1～2 desk fan, and every radiator fan power is about 3w; Relatively comprehensive, the present invention compares with existing laser projection, can save energy 1.5～3%, approximately 5 decibels of noise reductions.
Claims (11)
1. the heat radiating system of whole machine of laser projection, comprise laser light source module (24) and other heating module, heating module comprises the first kind heating module that has been equipped with radiator fan and the Equations of The Second Kind heating module that is not equipped with radiator fan, corresponding configuration has the complete machine air outlet near the radiator fan, it is characterized in that: described Equations of The Second Kind heating module comprises optical engine module (18), the both sides of optical engine module (18) arrange respectively the first air inlet (101) and the second air inlet (100), the Equations of The Second Kind heating module is arranged near the first air inlet (101), first kind heating module is put near the complete machine air outlet, laser light source module (24) is equipped with preferential radiator fan (241) and special-purpose air outlet (103), a part that is entered by the second air inlet (100) is distinguished and admirable to be derived from special-purpose air outlet (103) by preferential radiator fan (241), and the remainder that is entered by the second air inlet (100) is distinguished and admirable and by whole distinguished and admirablely then being derived from the complete machine air outlet by radiator fan that the first air inlet (101) enters.
2. the heat radiating system of whole machine of laser projection as claimed in claim 1, it is characterized in that: described Equations of The Second Kind heating module comprises complete machine power module (20), and described first kind heating module comprises switch mode power supply module (17) and laser drive circuit module (22).
3. the heat radiating system of whole machine of laser projection as claimed in claim 2, it is characterized in that: described radiator fan is included as the first radiator fan (170) that switch mode power supply module (17) is equipped with, described complete machine air outlet comprises the first complete machine air outlet (104), the first radiator fan (170) is positioned near the first complete machine air outlet (104), is connected with guide duct (14) between the first radiator fan (170) and the first complete machine air outlet (104).
4. the heat radiating system of whole machine of laser projection as claimed in claim 2 or claim 3, it is characterized in that: described switch mode power supply module (17) is arranged near the second air inlet (100).
5. the heat radiating system of whole machine of laser projection as claimed in claim 4, it is characterized in that: described complete machine power module (20) periphery is provided with wind scooper (19), part the first air inlet (101) is contained in the import of wind scooper (19), and the outlet of wind scooper (19) is away from preferential radiator fan (241) but near the second radiator fan (222).
6. the heat radiating system of whole machine of laser projection as claimed in claim 4 is characterized in that: described laser light source module (24) also is equipped with thermoelectric refrigerating unit and corresponding heat-pipe radiating apparatus, and preferential radiator fan (241) opposite heat tube heat abstractor cools off.
7. the heat radiating system of whole machine of laser projection as claimed in claim 2, it is characterized in that: described radiator fan is included as the second radiator fan (222) that laser drive circuit module (22) is equipped with, described complete machine air outlet comprises the second complete machine air outlet (102), and the second radiator fan (222) is positioned near the second complete machine air outlet (102).
8. the heat radiating system of whole machine of laser projection as claimed in claim 7, it is characterized in that: described laser drive circuit module (22) periphery is provided with air guide box (220), is provided with guide vane (21) between the second radiator fan (222) and the second complete machine air outlet (102).
9. such as the heat radiating system of whole machine of claim 2,3,7 or 8 described laser projections, it is characterized in that: described complete machine power module (20) periphery is provided with wind scooper (19), part the first air inlet (101) is contained in the import of wind scooper (19), and the outlet of wind scooper (19) is away from preferential radiator fan (241) but near the second radiator fan (222).
10. the heat radiating system of whole machine of laser projection as claimed in claim 9, it is characterized in that: be equipped with heating radiator (180) on the described optical engine module (18), the described distinguished and admirable described heating radiator (180) of flowing through of part of not shunted by wind scooper (19) that is entered by the first air inlet (101).
11. the heat radiating system of whole machine such as claim 1,2,3,7 or 8 described laser projections, it is characterized in that: described laser light source module (24) also is equipped with thermoelectric refrigerating unit and corresponding heat-pipe radiating apparatus, and preferential radiator fan (241) opposite heat tube heat abstractor cools off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102386402A CN102289139B (en) | 2011-08-19 | 2011-08-19 | Heat radiating system of whole machine of laser projector |
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| CN2011102386402A CN102289139B (en) | 2011-08-19 | 2011-08-19 | Heat radiating system of whole machine of laser projector |
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| CN102289139A CN102289139A (en) | 2011-12-21 |
| CN102289139B true CN102289139B (en) | 2013-01-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103713450B (en) | 2012-09-28 | 2016-02-24 | 中强光电股份有限公司 | Projection arrangement |
| CN103399451B (en) * | 2013-08-16 | 2015-09-16 | 深圳市帅映科技有限公司 | A kind of laser projection |
| CN105221956B (en) * | 2015-09-08 | 2018-08-21 | 高利通科技（深圳）有限公司 | A kind of thermostabilization light source |
| CN107368170A (en) * | 2017-09-02 | 2017-11-21 | 湖南长城银河科技有限公司 | Thin client based on Feiteng processor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101008773A (en) * | 2006-01-26 | 2007-08-01 | 中强光电股份有限公司 | Projector and radiator thereof |
| JP5049644B2 (en) * | 2006-05-12 | 2012-10-17 | 三洋電機株式会社 | Light source control device and video display device |
| CN101354522B (en) * | 2007-07-23 | 2010-09-29 | 中强光电股份有限公司 | Projection device |
| JP2009237546A (en) * | 2008-03-07 | 2009-10-15 | Sanyo Electric Co Ltd | Projection type image display device, and illumination device |
| CN201464786U (en) * | 2009-03-06 | 2010-05-12 | 上海三鑫科技发展有限公司 | Laser optical engine for miniature projector |
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