CN102722070A - Rear projection box heat dissipation structure and rear projection splicing wall heat dissipation system with same - Google Patents
Rear projection box heat dissipation structure and rear projection splicing wall heat dissipation system with same Download PDFInfo
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- CN102722070A CN102722070A CN2012101902901A CN201210190290A CN102722070A CN 102722070 A CN102722070 A CN 102722070A CN 2012101902901 A CN2012101902901 A CN 2012101902901A CN 201210190290 A CN201210190290 A CN 201210190290A CN 102722070 A CN102722070 A CN 102722070A
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Abstract
The invention belongs to the technical field of rear projection splicing, and particularly relates to a rear projection box heat dissipation structure and a rear projection splicing wall heat dissipation system with the same. According to the rear projection box heat dissipation structure, a projector system is arranged in a rear projection box and is correspondingly provided with an air inlet and an air outlet, wherein a side face of the rear projection box is provided with a cold air groove, and the opposite side face of the rear projection box is provided with a hot air groove; the cold air groove is provided with a cold air port which is communicated with the interior of the rear projection box; and the hot air groove is provided with a hot air port which is communicated with the interior of the rear projection box. The cold air groove and the hot air groove are arranged in the opposite side faces of the rear projection box, so that normal reflection and projection of a grating by a picture output by the light through a projector in the rear projection box can be guaranteed, the internal space of the rear projection box is not occupied, and the heat dissipation space of the projector system is guaranteed; and the rear projection box heat dissipation structure is arranged on the side face of the rear projection box and is far away from the projector system, so that a good heat dissipation effect is achieved, uniform variation in brightness of a light source can be guaranteed, and attenuation specification and life specification can be met.
Description
Technical field
The invention belongs to rear-projection case splicing field, be specifically related to a kind of rear-projection case radiator structure and with the rear-projection combination cooling system of this radiator structure.
Background technology
Along with the electronic technology development of integrated circuits, it is microminiaturized, complicated that the volume of electronic equipment is tending towards, and high heat density has become one irresistible development trend.The operating temperature range of electronic devices and components generally is-5～65 ℃, surpasses this scope, and the components and parts performance will significantly descend, thereby influence reliability of system operation.The temperature of the single semiconductor element of experiment proof raises 10 ℃, and the unfailing performance of system reduces by 50%, and in order to adapt to the demand of high heat density, traditional heat dissipation such as fan, heating radiator no longer satisfy radiating requirements.In the rear-projection combination because light-source temperature is higher cause led light source working 1000 hours after brightness begin decay, just needed to change again, and worked in the UHP light source combination and also need change light source in 3000 hours in 30000 hours; Reduce the reliability and the life-span of light source greatly.
Radiator structure in the present rear-projection combination; Generally be to open the hole of certain space or a fan is installed at the rear-projection casing; The casing extraneous air carries out the mobile exchange of casing inner air and outer air through hole or fan exhausting, outside casing, increases a hole and through fan the hot blast of projector heat radiation module is extracted out outside the casing.But; Temperature surpasses the outer temperature of casing near 5 degrees centigrade in the casing because the work of casing inner projection machine equipment causes in the rear-projection combination; It is limited to send into the light-source temperature heat radiation of light source of projector module circulation back through the box house exhausting; Hot blast after the heat radiation of projector heat radiation module is directly extracted out from casing behind, causes the indoor temperature in combination casing place to increase, and is very inconvenient in the time of need carrying out plant maintenance in addition.
The utility model patent of another kind of radiating mode such as the applicant's application, its application number is 200920238194.3, themes as the radiator structure that is applied to back projection display unit and back projection display wall; It mainly is at rear-projection case set inside air intake passage and air-out passage, and air intake passage and air-out passage are respectively near the inner side of back projection case air inlet and air outlet being set, though it is with air intake passage and air-out channel separation; And the requirement of cancellation display wall backside heat headspace, but because air intake passage and air-out passage all are arranged in the back projection case, it is big to take up room; Make the space in the back projection case reduce; Be unfavorable for air-flow flowing in case, and the air-out passage is arranged in the back projection case, too near the projector in the case; Its heat is passed to the projector in the case easily, is unfavorable for the heat radiation of case inner projection machine.
Summary of the invention
The technical matters that the present invention solves is the deficiency that overcomes prior art, and a kind of good heat dissipation effect, rear-projection case radiator structure easy to maintenance are provided.
The present invention also provides a kind of good heat dissipation effect, rear-projection combination cooling system easy to maintenance.
For solving the problems of the technologies described above, the technical scheme of first goal of the invention of the present invention is following:
A kind of rear-projection case radiator structure is provided with projector system in the said rear-projection case, and correspondence is provided with air inlet and air outlet on projector system, on a side of rear-projection case, has the cold wind groove, on relative side, has the hot blast groove; The cold wind groove is provided with the cold wind mouth that communicates with rear-projection case inside, and the hot blast groove is provided with the hot-air mouth that communicates with rear-projection case inside.Cold wind groove and hot blast groove are arranged on rear-projection case opposite flank; Can guarantee the picture regular reflection projection grating that light is exported at rear-projection case inner projection machine, it does not take rear-projection case inner space, has guaranteed the heat-dissipating space of projector system; And be arranged on rear-projection case side; Away from projector system, heat transmission can not take place with projector system in the hot blast of extracting out in the casing, further promotes radiating effect; And cold wind groove and hot blast groove be set to openly, is spliced to form hollow body through two rear-projection casees, when realizing heat radiation, also saves space resources.
As a kind of preferred version, the cold wind groove in rear-projection case side is arranged near the position of air inlet and the cold wind mouth on the cold wind groove and is arranged on the end near air inlet; Hot blast groove in rear-projection case side is arranged near the position of air outlet and the hot-air mouth on the hot blast groove and is arranged on the end near air outlet.Cold wind groove and hot blast groove in the position of rear-projection case side according to the air inlet and the air outlet setting of case inner projection machine system; Cold wind mouth on the cold wind groove need be near air inlet one end; Guarantee the less barrier between cold wind mouth and the air inlet; Make cold air gas flow between cold wind mouth and the air inlet, the hot-air mouth on the hot blast groove need guarantee that the hot blast in the projector system can be extracted out outside the case swimmingly near air outlet.
As a kind of preferred version, be communicated with through guide duct between said air outlet and the hot-air mouth.Use guide duct directly to extract the hot blast of projector system out the hot blast groove, radiating effect is better.
As a kind of preferred version, the place is provided with Air Blast fan at the cold wind mouth, and the place is provided with extractor fan at hot-air mouth, is provided with the inner blower fan at air inlet, is provided with inner extractor fan at air outlet.
The technical scheme of second goal of the invention of the present invention is following:
A kind of rear-projection combination cooling system, said rear-projection combination comprise several rear-projection casees of mutual splicing, are provided with projector system in the rear-projection case, and said rear-projection case is provided with above-mentioned rear-projection case radiator structure.
As a kind of preferred version; The rear-projection combination is provided with cold wind conveyance conduit and hot blast conveying pipe road, has wind pushing hole on the cold wind conveyance conduit, and said wind pushing hole communicates with the butt joint of cold wind groove; Have the exhausting hole on the hot blast conveying pipe road, said exhausting hole communicates with the butt joint of hot blast groove.Cold wind conveyance conduit and hot blast conveying pipe road are installed on combination, and two conveyance conduits need keep the interval of certain distance, and avoiding two conveyance conduits to carry out heat transmission influences cold wind conveyance conduit transporting cold wind.The cold wind conveyance conduit is sent cold wind in the cold wind groove to through wind pushing hole; Outdoor the communicating in hot blast conveying pipe road and rear-projection combination place, it through the exhausting hole hot blast in the hot blast groove is extracted out and to deliver to the rear-projection combination outdoor, carries out heat evacuation through external environment condition.
As further preferred version, the rear-projection case of splicing about said rear-projection combination comprises each other, cold wind groove and hot blast groove form cold wind hollow passageway and hot blast hollow passageway respectively between the adjacent rear-projection case in the left and right sides.
As further preferred version; Be provided with at the rear-projection case on the side of cold wind groove and also be provided with the symmetrical hot blast groove symmetrical, be provided with at the rear-projection case on the side of hot blast groove and also be provided with the symmetrical cold wind groove symmetrical with the cold wind groove location with the hot blast groove location; The cold wind groove and the symmetrical cold wind groove that are positioned on the adjacent rear-projection case in the different left and right sides combine to form the cold wind hollow passageway, and the hot blast groove and the symmetrical hot blast groove that are positioned on the adjacent rear-projection case in the different left and right sides combine to form the hot blast hollow passageway.Between the cold wind groove of rear-projection case same side and symmetrical hot blast groove, hot blast groove and symmetrical cold wind groove, need to keep the interval of certain distance, avoid the heat of hot blast closely to be passed to cold wind, influence the hot and cold air equilibrium temperature.
As further preferred version, said rear-projection combination also comprises each other the rear-projection case of splicing up and down, and the cold wind hollow passageway of neighbouring rear-projection case, hot blast hollow passageway seal respectively joins.
As further preferred version, said cold wind conveyance conduit also is connected with air-conditioner air supply device.Air-conditioner air supply device is used for carrying cold air to the cold wind conveyance conduit.
Compared with prior art, the beneficial effect of technical scheme of the present invention is:
Cold wind groove and hot blast groove are arranged on rear-projection case opposite flank; Can guarantee the picture regular reflection projection grating that light is exported at rear-projection case inner projection machine, it does not take rear-projection case inner space, has guaranteed the heat-dissipating space of projector system; And be arranged on rear-projection case side; Away from projector system, heat transmission can not take place with projector system in the hot blast of extracting out in the casing, further promotes radiating effect; And cold wind groove and hot blast groove be set to openly, is spliced to form hollow body through two rear-projection casees, when realizing heat radiation, also saves space resources.The rear-projection combination that has an above-mentioned rear-projection case radiator structure makes cold wind groove and symmetrical cold wind groove, hot blast groove and symmetrical hot blast groove between the adjacent rear-projection case combine to form hollow body respectively through the splicing of rear-projection case; And be provided with two conveyance conduits respectively transporting cold wind with see hot blast off; Flow through cold wind and the cold wind in the rear-projection casing to be extracted into projector system inside light source is dispelled the heat; And thermal current is extracted out through guide duct; Good heat dissipation effect guarantees the brightness even variation of light source and satisfies decay specification and life-span specification.
Description of drawings
Fig. 1 is rear-projection case radiator structure synoptic diagram among the present invention;
Fig. 2 is for having the rear-projection combination cooling system structural representation of the adjacent rear-projection case in the left and right sides among the present invention;
Fig. 3 for about having among the present invention, the rear-projection combination cooling system structural representation of neighbouring rear-projection case.
Embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is done further explanation.
Embodiment 1
As shown in Figure 1; A kind of rear-projection case radiator structure is provided with projector system 2 in the rear-projection case 1, correspondence is provided with air inlet 21 and air outlet 22 on projector system; On a side of rear-projection case 1, have cold wind groove 3, on relative side, have hot blast groove 4; Cold wind groove 3 is provided with the cold wind mouth 31 that communicates with rear-projection case 1 inside, and hot blast groove 4 is provided with the hot-air mouth 41 that communicates with rear-projection case 1 inside; Dispel the heat in order gas can be flowed in rear-projection case 1 and can to get into projector system 2 interior focusing sources through gas flow; Cold wind groove 3 is arranged near the cold wind mouth 31 on the position of air inlet 21 and the cold wind groove 3 and is arranged on the end near air inlet 21, and hot blast groove 4 is arranged near the hot-air mouth 41 on the position of air outlet 22 and the hot blast groove 4 and is arranged on the end near air outlet 22; The hot blast that gets into the back formation of dispelling the heat in the projector system 2 for gas can be smooth and easy outside projector system 2 is expelled to rear-projection case 1, between air outlet 22 and hot-air mouth 41, guide duct 5 is set; For gas can get in the rear-projection case 1 from cold wind groove 3 apace, 31 places are provided with Air Blast fan at the cold wind mouth, can discharge smooth and easy and fast outside the rear-projection casing in order to make hot blast; 41 places are provided with extractor fan at hot-air mouth; For cold wind can be dispelled the heat in the quick smooth and easy entering projector system 2, be provided with the inner blower fan at air inlet 21; In order to make the hot blasts that form through heat radiation in the projector system 2 can smooth and easy quick discharge, be provided with inner extractor fan at air outlet 22.
Embodiment 2
As shown in Figure 2; In a kind of rear-projection combination cooling system; A plurality of rear-projection casees 1 that have above-mentioned rear-projection case radiator structure are spliced to form the rear-projection combination; The rear-projection case 1 of splicing about the rear-projection combination comprises each other, cold wind groove 3 and hot blast groove 4 form cold wind hollow passageway and hot blast hollow passageway respectively between the adjacent rear-projection case 1 in the left and right sides; The rear-projection combination is provided with cold wind conveyance conduit 6 and hot blast conveying pipe road 7, and cold wind conveyance conduit 6 is connected with air-conditioner air supply device 10; Have wind pushing hole 61 on the cold wind conveyance conduit 6, wind pushing hole 61 communicates with the butt joint of cold wind hollow passageway, has exhausting hole 71 on the hot blast conveying pipe road 7, and exhausting hole 71 communicates with the butt joint of hot blast hollow passageway.Cold wind conveyance conduit 6 and the interval that hot blast conveying pipe road 7 needs to keep certain distance, avoiding two conveyance conduits to carry out heat transmission influences cold wind conveyance conduit 6 transporting cold wind.The cold wind groove, the hot blast groove that are positioned at rear-projection combination edge use baffle plate to seal, and guarantee the integrality in total system air channel.
As shown in Figure 1; In order to enlarge the air channel area of cold wind hollow passageway and hot blast hollow passageway; Strengthen the gas delivery amount; Be provided with at rear-projection case 1 on the side of cold wind groove 3 and also be provided with the symmetrical hot blast groove 8 symmetrical, be provided with at rear-projection case 1 on the side of hot blast groove 4 and also be provided with the symmetrical cold wind groove 9 symmetrical with cold wind groove 3 positions with hot blast groove 4 positions; The cold wind groove 3 that is positioned on the adjacent rear-projection case 1 in the different left and right sides combines to form the cold wind hollow passageway with symmetrical cold wind groove 9, and the hot blast groove 4 that is positioned on the adjacent rear-projection case 1 in the different left and right sides combines to form the hot blast hollow passageway with symmetrical hot blast groove 8.
During work; The cold wind that air-conditioner air supply device 10 is seen air-conditioning system off is delivered to cold wind conveyance conduit 6; Through wind pushing hole on the cold wind conveyance conduit 6 61 and the Air Blast fan in the cold wind mouth 31 cold wind is sent in the cold wind hollow passageway, cold wind is delivered in rear-projection case 1 body through the Air Blast fan in the cold wind mouth 31; The inner blower fan at projector system 2 interior air inlet 21 places is delivered to projector system 2 inside with cold wind light source is dispelled the heat; The hot blast that heat radiation forms is extracted out through the inside extractor fan that air outlet 22 goes out; And hot blast is delivered to the hot blast hollow passageway through guide duct 5; It is outdoor that the rear-projection combination is delivered to the extraction of the hot blast in the hot blast hollow passageway in hot blast conveying pipe road 7, evacuates with external environment condition heat.
Also comprise the rear-projection case 1 that splices up and down each other in the rear-projection combination, the cold wind hollow passageway of neighbouring rear-projection case 1, hot blast hollow passageway seal respectively joins.Install for convenient; Can air-conditioner air supply device 10 be installed in the central authorities of rear-projection combination system, cold wind left and right sides both direction is transmitted, as shown in Figure 3; Wherein l, m, n, o all represent the exhausting hole 71 on the hot blast conveying pipe road 7; X, y, z, w all represent the wind pushing hole 61 on the cold wind conveyance conduit 6, and A1, A2, A3, A4, A5, A6 all represent the cold wind mouth 31 in the cold wind groove 3, and B1, B2, B3, B4, B5, B6 all represent the air inlet 21 on the projector system 2; C1, C2, C3, C4, C5, C6 all represent the air outlet 22 on the projector system 2, and D1, D2, D3, D4, D5, D6 all represent the hot-air mouth 41 on the hot blast groove 4.
The rear-projection combination system maintenance easy that has this rear-projection case cooling mechanism; Through at 25 degrees centigrade of following contrast tests of normal temperature: air-conditioner air supply device 10 is provided with carries 20 degrees centigrade of cold wind; Originally the rear-projection casing reduces nearly 10 degrees centigrade by 30 degrees centigrade; Temperature keeps 20 degrees centigrade basically in the rear-projection casing, and good heat dissipation effect can reduce by 10 degrees centigrade of led light source and UHP light source works temperature simultaneously; Can effectively improve the reliability and the life-span of light source, guarantee the brightness even variation of light source and satisfy decay specification and life-span specification.
Claims (10)
1. a rear-projection case radiator structure is provided with projector system in the said rear-projection case, it is characterized in that correspondence is provided with air inlet and air outlet on projector system, on a side of rear-projection case, has the cold wind groove, on relative side, has the hot blast groove; The cold wind groove is provided with the cold wind mouth that communicates with rear-projection case inside, and the hot blast groove is provided with the hot-air mouth that communicates with rear-projection case inside.
2. according to each described rear-projection case radiator structure of claim 1, it is characterized in that the cold wind groove in rear-projection case side is arranged near the position of air inlet and the cold wind mouth on the cold wind groove and is arranged on the end near air inlet; Hot blast groove in rear-projection case side is arranged near the position of air outlet and the hot-air mouth on the hot blast groove and is arranged on the end near air outlet.
3. rear-projection case radiator structure according to claim 1 is characterized in that, is communicated with through guide duct between said air outlet and the hot-air mouth.
4. according to each described rear-projection case radiator structure of claim 1 to 3, it is characterized in that the place is provided with Air Blast fan at the cold wind mouth, the place is provided with extractor fan at hot-air mouth, is provided with the inner blower fan at air inlet, is provided with inner extractor fan at air outlet.
5. rear-projection combination cooling system, said rear-projection combination comprises several rear-projection casees of mutual splicing, is provided with projector system in the rear-projection case, it is characterized in that, said rear-projection case is provided with rear-projection case radiator structure as claimed in claim 1.
6. rear-projection combination cooling system according to claim 5; It is characterized in that; The rear-projection combination is provided with cold wind conveyance conduit and hot blast conveying pipe road, has wind pushing hole on the cold wind conveyance conduit, and said wind pushing hole communicates with the butt joint of cold wind groove; Have the exhausting hole on the hot blast conveying pipe road, said exhausting hole communicates with the butt joint of hot blast groove.
7. rear-projection combination cooling system according to claim 6; It is characterized in that; The rear-projection case of splicing about said rear-projection combination comprises each other, cold wind groove and hot blast groove form cold wind hollow passageway and hot blast hollow passageway respectively between the adjacent rear-projection case in the left and right sides.
8. rear-projection combination cooling system according to claim 7; It is characterized in that; Be provided with at the rear-projection case on the side of cold wind groove and also be provided with the symmetrical hot blast groove symmetrical, be provided with at the rear-projection case on the side of hot blast groove and also be provided with the symmetrical cold wind groove symmetrical with the cold wind groove location with the hot blast groove location; The cold wind groove and the symmetrical cold wind groove that are positioned on the adjacent rear-projection case in the different left and right sides combine to form the cold wind hollow passageway, and the hot blast groove and the symmetrical hot blast groove that are positioned on the adjacent rear-projection case in the different left and right sides combine to form the hot blast hollow passageway.
9. according to claim 7 or 8 described rear-projection combination cooling systems, it is characterized in that said rear-projection combination also comprises each other the rear-projection case of splicing up and down, the cold wind hollow passageway of neighbouring rear-projection case, hot blast hollow passageway seal respectively joins.
10. according to each described rear-projection combination cooling system of claim 6 to 8, it is characterized in that said cold wind conveyance conduit also is connected with air-conditioner air supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101902901A CN102722070A (en) | 2012-06-11 | 2012-06-11 | Rear projection box heat dissipation structure and rear projection splicing wall heat dissipation system with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101902901A CN102722070A (en) | 2012-06-11 | 2012-06-11 | Rear projection box heat dissipation structure and rear projection splicing wall heat dissipation system with same |
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| CN102722070A true CN102722070A (en) | 2012-10-10 |
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| CN2012101902901A Pending CN102722070A (en) | 2012-06-11 | 2012-06-11 | Rear projection box heat dissipation structure and rear projection splicing wall heat dissipation system with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848456A (en) * | 2016-05-27 | 2016-08-10 | 刘高志 | Single-sided ventilation type intelligent controller radiating structure |
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| JPH04361248A (en) * | 1991-06-07 | 1992-12-14 | Sony Corp | Display device for multi-image system |
| US5585681A (en) * | 1993-05-28 | 1996-12-17 | Steyr-Daimler Puch Ag | Liquid-cooled drive unit for an electric motor vehicle |
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Application publication date: 20121010 |