CN102368135A - Apparatus capable of preventing from dust and fume and overhead projector - Google Patents

Apparatus capable of preventing from dust and fume and overhead projector Download PDF

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Publication number
CN102368135A
CN102368135A CN2011103379552A CN201110337955A CN102368135A CN 102368135 A CN102368135 A CN 102368135A CN 2011103379552 A CN2011103379552 A CN 2011103379552A CN 201110337955 A CN201110337955 A CN 201110337955A CN 102368135 A CN102368135 A CN 102368135A
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China
Prior art keywords
containing cavity
preventing dust
heating radiator
dust device
radiator
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CN2011103379552A
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CN102368135B (en
Inventor
杜伦春
黄旻
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Shenzhen Acto Digital Video Technology Co Ltd
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Shenzhen Acto Digital Video Technology Co Ltd
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  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention is suitable for the image equipment production technology field and provides an apparatus capable of preventing from dust and fume and an overhead projector comprising the same. The apparatus capable of preventing from dust and fume comprises a shell. A first accommodation chamber and a second accommodation chamber are arranged in the shell. The first accommodation chamber is a sealed chamber. A semiconductor refrigeration sheet is arranged on a junction of the first accommodation chamber and the second accommodation chamber. A cold side and a heat side of the semiconductor refrigeration sheet respectively face the first accommodation chamber and the second accommodation chamber. At least one air inlet and a plurality of air vents are arranged on the second accommodation chamber. An external cooling fan is arranged on the each air inlet. The overhead projector employs the apparatus which can prevent from dust and fume. By using the apparatus capable of preventing from the dust and fume and the overhead projector provided in the invention, smog, oil smoke and various kinds of dusts can be effectively prevented to enter into the apparatus. Therefore, equipment can be applied in various kinds of hostile environments and a service life can be prolonged.

Description

Preventing dust device and projector
Technical field
The invention belongs to the imaging equipment production technical field, more particularly, relate to a kind of preventing dust device and comprise the projector of this preventing dust device.
Background technology
Along with the widespread use of shadow casting technique, the range of application of projector is also more and more wider, and projector is mainly used in office and education market at present.As everyone knows, projector is a kind of enervated product, no matter is LCD projector or DLP projector; All than higher, particularly optical component receives the influence of particulate in the air very big to the requirement of environment for use; This just requires projector to have the good dust-proof performance, generally need inside be kept sealing state as far as possible, still; Because projector in use can produce great amount of heat; So require projector to have good performance of heat dissipation again, be unfavorable for heat radiation and sealing is very good, so contradiction occurred.For solving this to contradiction; Prior art is that the air intake opening in projector adds filtering material, and reaching dustproof purpose, but filtering material needs regularly to clean; And in rugged surroundings, use; Such as open air, outlying villages and small towns, sandstorm area etc., the dust prevention system of most existing projectors is blocked very soon, causes machine breakdown; At the environment that smog and oil smoke are arranged, such as karaoke halls, restaurant etc., smog and oil smoke can pollute optical device very soon, cause projector to lose efficacy very soon, are seriously restricting the market expansion of projector in addition.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of preventing dust device; Be intended to prevent smog, oil smoke, reach various dust accesss to plant inside; To guarantee the using various device of this device in various rugged environments, to use, effectively increase its serviceable life.
For solving the problems of the technologies described above; The technical scheme of employing of the present invention is: a kind of preventing dust device is provided, can be used for the smoke and dust proof of projector, comprise a shell; Be provided with first containing cavity and second containing cavity in the said shell; Said first containing cavity is an annular seal space, and the intersection of said first containing cavity and said second containing cavity is provided with the semiconductor cooling piece, and the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate and hot side are respectively towards said first containing cavity and said second containing cavity; Said second containing cavity is provided with at least one air admission hole and a plurality of louvre, and each said air inlet position is provided with outside radiator fan.
Further, the intersection of said first containing cavity and said second containing cavity is separated through a thermal insulation board, and said semiconductor chilling plate is embedded in the said thermal insulation board.
Further, also be provided with one first heating radiator in said first containing cavity, the huyashi-chuuka (cold chinese-style noodles) of said first heating radiator and said semiconductor chilling plate fits.
Further, also be provided with one second heating radiator in said second containing cavity, the hot side of said second heating radiator and said semiconductor chilling plate fits, and said second heating radiator and said outside radiator fan are oppositely arranged.
Further, also be provided with an internal heat dissipating fan in said first containing cavity, said internal heat dissipating fan is located at the top of said first heating radiator.
Further; Also be provided with in said first containing cavity both ends open the air channel, inside, it has one first air port and second air port, said first heating radiator and said internal heat dissipating fan are located between said first heating radiator and said first air port at place, said first air port and said internal heat dissipating fan.
Further; Said first heating radiator comprises the refrigeration base plate that fits with the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate and is located at a plurality of cooling pieces that are parallel to each other on the said refrigeration base plate; Form a plurality of refrigeration air channels that are gap-like between each said cooling piece, said internal heat dissipating fan is over against each said refrigeration air channel.
Further, said second heating radiator comprises the radiating bottom plate that fits with the hot side of said semiconductor chilling plate and is located at a plurality of heat radiator parallel to each other on the said radiating bottom plate that said outside radiator fan is located at the top of each said heat radiator.
The beneficial effect of preventing dust device provided by the invention is: preventing dust device of the present invention utilizes the conductor refrigeration principle; The huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate is put in first containing cavity of sealing; Hot side is put to second containing cavity of opening, and accomplishes first containing cavity of sealing and the heat interchange between open second containing cavity through semiconductor chilling plate; When ray machine etc. being set in first containing cavity producing the components and parts of heat; Because first containing cavity seals fully; Dust and smog can't get into; So the preventing dust works very well, and the heat that components and parts such as ray machine produce can carry out heat interchange and derives through the cold and hot surface of semiconductor chilling plate, therefore solved the heat dissipation problem that first containing cavity brings because of sealing; But distributing of the heat of the setting accelerated semiconductor cooling piece hot side of outside radiator fan; Thereby lifting radiating efficiency; Further effectively guarantee the serviceable life of components and parts such as ray machine, thereby use the equipment of this preventing dust device can be, and guarantee its serviceable life in severe environment applications such as various flue dust.
The technical matters that the present invention will solve also is to provide a kind of projector; Being intended to solve existing projector can not be than the problem of using under the rugged surroundings; Make the projector all can operate as normal in various environment, no longer receive the influence of dust and smog, effectively increase projector serviceable life simultaneously.This projector comprises a ray machine, a power panel and a master control borad, also comprises above-mentioned described preventing dust device, and said ray machine, power panel, master control borad are located in first holding part of said preventing dust device.
Further, said ray machine, power panel, master control borad are located in the said inner air channel.
The beneficial effect of projector provided by the invention is: projector of the present invention has adopted above-mentioned described preventing dust device; Make that projector all can operate as normal in various environment; Especially can use than under the rugged surroundings; No longer receive the influence of dust and smog, projector can effectively be guaranteed serviceable life simultaneously, and plays the effect of energy-conserving and environment-protective.
Description of drawings
The vertical vertical profile structural representation of the preventing dust device that Fig. 1 provides for the embodiment of the invention;
The horizontal vertical profile structural representation of the preventing dust device that Fig. 2 provides for the embodiment of the invention;
The vertical vertical profile structural representation of the projector that Fig. 3 provides for the embodiment of the invention;
The horizontal vertical profile structural representation of the projector that Fig. 4 provides for the embodiment of the invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please, preventing dust device provided by the invention is described at present in the lump with reference to Fig. 1 and Fig. 2.Said preventing dust device; The smoke and dust proof that can be used for projector; Comprise shell 1, be provided with first containing cavity 11 and second containing cavity 12 in the said shell 1, said first containing cavity 11 is an annular seal space; And said first containing cavity 11 is provided with semiconductor chilling plate 2 with the intersection of said second containing cavity 12, and the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate 2 and hot side are respectively towards said first containing cavity 11 and said second containing cavity 12; Said second containing cavity 12 is provided with at least one air admission hole 121 and a plurality of louvres 122; Each said air admission hole 121 place is provided with outside radiator fan 31; When outside radiator fan 31 is worked; Suck in second containing cavity 12 from the gas of air admission hole 12, and the gas that will have a heat is forced to get rid of from louvre 122, thereby realize cooling in second containing cavity 12 lower temperature in the external world; And then be beneficial to distributing of heat on the hot side of semiconductor chilling plate 2, finally promote first containing cavity 11 the derivation efficient of heat.
Preventing dust device provided by the invention; First containing cavity 11 of one sealing and second containing cavity 12 of an opening are set in shell 1; Utilize the conductor refrigeration principle; The huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate 2 is put in first containing cavity 11 of sealing, and hot side is put to second containing cavity of opening 12, accomplishes first containing cavity 11 of sealing and the heat interchange between open second containing cavity 12 through semiconductor chilling plate; When components and parts such as ray machine are set in first containing cavity 11; Because first containing cavity 11 seals fully; Dust and smog can't get into; So the preventing dust works very well, and the heat that components and parts such as ray machine produce can carry out heat interchange and derives through the hot and cold face of semiconductor chilling plate 2, therefore solved the heat dissipation problem that first containing cavity 11 brings because of sealing; But distributing of the heat of setting accelerated semiconductor cooling piece 2 hot sides of outside radiator fan 31; Thereby lifting radiating efficiency; Further effectively guarantee the serviceable life of components and parts such as ray machine; Thereby use the equipment of this preventing dust device can be, and guarantee its serviceable life in severe environment applications such as various flue dust.
Further; See also Fig. 1 and Fig. 2 again; As a kind of embodiment of preventing dust device provided by the invention, said first containing cavity 11 is separated through thermal insulation board 4 with the intersection of said second containing cavity 12, and said semiconductor chilling plate 2 is embedded in the said thermal insulation board 4.The size of semiconductor chilling plate 2 is less; Need carrier during installation; And adopt thermal insulation board 4 as carrier; Can effectively prevent the heat transmission between first containing cavity 11 and second containing cavity 12, prevent that the heat in second containing cavity 12 from importing in first containing cavity 11, thereby reduce the refrigeration of semiconductor chilling plate 2.
Further, see also Fig. 1 and Fig. 2 again, as a kind of embodiment of preventing dust device provided by the invention, also be provided with first heating radiator 5 in said first containing cavity 11, said first heating radiator 5 fits with the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate 2.In this embodiment, huyashi-chuuka (cold chinese-style noodles) that first heating radiator 5 can increase semiconductor chilling plate 2 is set contact and carry out the area of heat collection with heats in first containing cavity 11, and then promote the radiating efficiency of semiconductor chilling plate 2 greatly, refrigeration is ideal more.
Further; Also see also Fig. 1 and Fig. 2; A kind of embodiment as preventing dust device provided by the invention; Also be provided with second heating radiator 6 in said second containing cavity 12, said second heating radiator 6 fits with the hot side of said semiconductor chilling plate 2, and said second heating radiator 6 is oppositely arranged with said outside radiator fan 31.In this embodiment; Second heating radiator 6 is set can increase the area of dissipation of the hot side of semiconductor chilling plate 2; The heat of deriving from first containing cavity 11 that makes is more prone to be dispersed in second containing cavity 12, and discharges by force through external fan 31, thereby has further promoted radiating efficiency.
Further, still see also Fig. 1 and Fig. 2, as a kind of embodiment of preventing dust device provided by the invention, also be provided with internal heat dissipating fan 32 in said first containing cavity 11, said internal heat dissipating fan 32 is located at the top of said first heating radiator 5.Because first containing cavity 11 is an annular seal space, inner air does not flow, and fan is set can increase the circulation of air in first containing cavity 11, thereby is convenient to exchange heat.
Further; See also Fig. 1 and Fig. 2 again; A kind of embodiment as preventing dust device provided by the invention; Also be provided with in said first containing cavity 11 both ends open air channel, inside 7, it has one first air port 71 and second air port 72, said first heating radiator 5 and said internal heat dissipating fan 32 at said 71 places, first air port and said internal heat dissipating fan 32 be located between said first heating radiator 5 and said first air port 71.In this embodiment; Through inner air channel 7 is set, the air in first containing cavity 11 is flowed in order, that is: the surface temperature of the huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate 2 and first heating radiator 5 is lower; Portion's radiator fan 32 produces the lower air-flow of temperature to its blowing; And be blown into through first air port in inner air channel 7, these colder air-flows mix with the higher air-flow of temperature of 7 the insides, inner air channel makes cooling in the inner air channel 7, simultaneously mixed air-flow is discharged from second air port by force; The huyashi-chuuka (cold chinese-style noodles) that semiconductor chilling plate 2 was collected and be delivered to its heat of taking out of by first heating radiator 5 carries out heat interchange and realizes heat radiation; Air communication in first containing cavity 11 is crossed the circulation so in an orderly manner repeatedly of inner air channel 7, makes that internal heat dissipating efficient is higher, and reaches good refrigeration.
Further; Referring to Fig. 1 and Fig. 2; A kind of embodiment as preventing dust device provided by the invention; Said first heating radiator 5 comprises refrigeration base plate 51 that the huyashi-chuuka (cold chinese-style noodles) with said semiconductor chilling plate 2 fits and is located at a plurality of cooling pieces that are parallel to each other 52 on the said refrigeration base plate 51 that form a plurality of refrigeration air channels 50 that are gap-like between each said cooling piece 52, said internal heat dissipating fan 32 is over against each said refrigeration air channel 50.In this embodiment; First heating radiator 5 is arranged to the grating structure of this a plurality of cooling piece 52 parallel distributions; Can in heating radiator, form on the one hand a plurality of gaps with as the air channel 50 of freezing; Internal heat fan 32 is beneficial to the lower cold airflow of formation temperature and gets into inner air channel 7 through first air port 71 after blowing over these refrigeration air channels 50 of next distinguished and admirable process; On the other hand, this of heating radiator kind of structure can make the refrigeration area of entire radiator maximize, thereby makes the radiating efficiency of heating radiator be able to optimize.
Further; See also Fig. 1, Fig. 2; A kind of embodiment as preventing dust device provided by the invention; Said second heating radiator 6 comprises the radiating bottom plate 61 that the hot side with said semiconductor chilling plate 2 fits and is located at a plurality of heat radiator 62 parallel to each other on the said radiating bottom plate 61 that said outside radiator fan 31 is located at the top of each said heat radiator 62.In this embodiment, this structure of second heating radiator 6 mainly is in order to increase its cooling surface area, to promote its radiating efficiency; Outside radiator fan 31 over against blowing, more helps distributing of thermal current from the top of heating radiator.
The present invention also provides a kind of projector.See also Fig. 3 and Fig. 4; Said projector comprises ray machine 100, power panel (invisible among the figure) and master control borad 200; Also comprise above-mentioned described preventing dust device; Said ray machine 100, power panel (invisible among the figure), master control borad 200 are located in first holding part 11 of said preventing dust device, because first containing cavity 11 is an annular seal space, so ray machine 100, power panel, master control borad 200 these components and parts can not receive smog and effect of dust fully.
Projector provided by the invention; Adopted above-mentioned described preventing dust device; Make that projector all can operate as normal in various environment, especially can use, no longer receive the influence of dust and smog than under the rugged surroundings; Projector can effectively be guaranteed serviceable life simultaneously, and plays the effect of energy-conserving and environment-protective.
Further, also see also Fig. 3 and Fig. 4, as a kind of embodiment of projector provided by the invention, further, said ray machine 100, power panel (invisible among the figure), master control borad 200 are located in the said inner air channel 7.Because ray machine 100, power panel (invisible among the figure), master control borad 200 all can produce great amount of heat, it is arranged in the inner air channel 7, because the air in the air channel flows in order, be beneficial to its radiating and cooling, each components and parts spare is difficult for aging, guarantees it and benefits from the life-span.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. preventing dust device; The smoke and dust proof that can be used for projector; It is characterized in that: comprise a shell, be provided with first containing cavity and second containing cavity in the said shell, said first containing cavity is an annular seal space; And the intersection of said first containing cavity and said second containing cavity is provided with the semiconductor cooling piece, and the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate and hot side are respectively towards said first containing cavity and said second containing cavity; Said second containing cavity is provided with at least one air admission hole and a plurality of louvre, and each said air inlet position is provided with outside radiator fan.
2. preventing dust device according to claim 1 is characterized in that: the intersection of said first containing cavity and said second containing cavity is separated through a thermal insulation board, and said semiconductor chilling plate is embedded in the said thermal insulation board.
3. according to claim 1 or 2 described preventing dust devices, it is characterized in that: also be provided with one first heating radiator in said first containing cavity, the huyashi-chuuka (cold chinese-style noodles) of said first heating radiator and said semiconductor chilling plate fits.
4. preventing dust device according to claim 3; It is characterized in that: also be provided with one second heating radiator in said second containing cavity; The hot side of said second heating radiator and said semiconductor chilling plate fits, and said second heating radiator and said outside radiator fan are oppositely arranged.
5. preventing dust device according to claim 4 is characterized in that: also be provided with an internal heat dissipating fan in said first containing cavity, said internal heat dissipating fan is located at the top of said first heating radiator.
6. preventing dust device according to claim 5; It is characterized in that: also be provided with in said first containing cavity both ends open the air channel, inside, it has one first air port and second air port, said first heating radiator and said internal heat dissipating fan are located between said first heating radiator and said first air port at place, said first air port and said internal heat dissipating fan.
7. preventing dust device according to claim 3; It is characterized in that: said first heating radiator comprises the refrigeration base plate that fits with the huyashi-chuuka (cold chinese-style noodles) of said semiconductor chilling plate and is located at a plurality of cooling pieces that are parallel to each other on the said refrigeration base plate; Form a plurality of refrigeration air channels that are gap-like between each said cooling piece, said internal heat dissipating fan is over against each said refrigeration air channel.
8. according to each described preventing dust device of claim 4-7; It is characterized in that: said second heating radiator comprises the radiating bottom plate that fits with the hot side of said semiconductor chilling plate and is located at a plurality of heat radiator parallel to each other on the said radiating bottom plate that said outside radiator fan is located at the top of each said heat radiator.
9. a projector comprises a ray machine, a power panel and a master control borad, it is characterized in that: also comprise each described preventing dust device of claim 1 to 8, said ray machine, power panel, master control borad are located in first holding part of said preventing dust device.
10. projector according to claim 9 is characterized in that: said ray machine, power panel, master control borad are located in the said inner air channel.
CN 201110337955 2011-10-31 2011-10-31 Apparatus capable of preventing from dust and fume and overhead projector Active CN102368135B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105072834A (en) * 2015-08-03 2015-11-18 深圳开立生物医疗科技股份有限公司 Medical diagnostic equipment
CN105589286A (en) * 2015-12-24 2016-05-18 苏州佳世达光电有限公司 Projector
CN106019786A (en) * 2016-08-08 2016-10-12 成都恒胜达科技有限公司 Projector shell with dust prevention and heat dissipation functions
CN112454203A (en) * 2020-11-09 2021-03-09 深圳市科力尔运动控制技术有限公司 Step driver convenient to dismantle
CN114895515A (en) * 2022-04-18 2022-08-12 深圳市和天创科技有限公司 Intelligent heat dissipation mechanism of sealed optical machine of single-chip projector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201123207Y (en) * 2007-09-22 2008-09-24 贵州航天南海机电有限公司 Air cooling system for metal drawing electrical control cabinet
CN101402015A (en) * 2008-10-26 2009-04-08 耿继跃 Air filter for electronic equipments box
JP2009193137A (en) * 2008-02-12 2009-08-27 Sanyo Electric Co Ltd Electronic equipment cooling system
CN202285078U (en) * 2011-10-31 2012-06-27 深圳雅图数字视频技术有限公司 Smoke-proof projector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201123207Y (en) * 2007-09-22 2008-09-24 贵州航天南海机电有限公司 Air cooling system for metal drawing electrical control cabinet
JP2009193137A (en) * 2008-02-12 2009-08-27 Sanyo Electric Co Ltd Electronic equipment cooling system
CN101402015A (en) * 2008-10-26 2009-04-08 耿继跃 Air filter for electronic equipments box
CN202285078U (en) * 2011-10-31 2012-06-27 深圳雅图数字视频技术有限公司 Smoke-proof projector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105072834A (en) * 2015-08-03 2015-11-18 深圳开立生物医疗科技股份有限公司 Medical diagnostic equipment
CN105589286A (en) * 2015-12-24 2016-05-18 苏州佳世达光电有限公司 Projector
CN105589286B (en) * 2015-12-24 2017-11-07 苏州佳世达光电有限公司 Projection arrangement
CN106019786A (en) * 2016-08-08 2016-10-12 成都恒胜达科技有限公司 Projector shell with dust prevention and heat dissipation functions
CN112454203A (en) * 2020-11-09 2021-03-09 深圳市科力尔运动控制技术有限公司 Step driver convenient to dismantle
CN114895515A (en) * 2022-04-18 2022-08-12 深圳市和天创科技有限公司 Intelligent heat dissipation mechanism of sealed optical machine of single-chip projector
CN114895515B (en) * 2022-04-18 2023-10-03 深圳市和天创科技有限公司 Intelligent heat dissipation mechanism of sealed ray apparatus of singlechip

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