CN101907819B - Heat dissipation device applied to projection device and projection device - Google Patents
Heat dissipation device applied to projection device and projection device Download PDFInfo
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- CN101907819B CN101907819B CN2009101489584A CN200910148958A CN101907819B CN 101907819 B CN101907819 B CN 101907819B CN 2009101489584 A CN2009101489584 A CN 2009101489584A CN 200910148958 A CN200910148958 A CN 200910148958A CN 101907819 B CN101907819 B CN 101907819B
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Abstract
The invention relates to a heat dissipation device applied to a projection device and the projection device. The projection device comprises a first light source, a second light source, a third light source and the heat dissipation device. The heat dissipation device comprises an airflow guide device and a fan, wherein the airflow guide device is used for defining a first flow passage and a second flow passage. The first flow passage is provided with a first position, the second flow passage is provided with a second position and a third position, and the three positions correspond to the first light source, the second light source and the third light source respectively. The fan is used for generating an airflow which is distributed into a first airflow and a second airflow entering the first flow passage and the second flow passage respectively. Therefore, the heat dissipation device meets the heat dissipation requirements of the light sources only through one fan, and the noise generated by the heat dissipation device is reduced.
Description
Technical field
The invention relates to a kind of projection arrangement, particularly a kind of heat abstractor that is used for projection arrangement.
Background technology
What projection arrangement was general now is applied in the environment such as various business meetings and family's theater.When meeting report or movie, all need long-time use projection arrangement, and then make projection arrangement produce a large amount of heats.For avoiding projection arrangement to produce when machine and situation such as shorten serviceable life because of overheated, the outwards loss of heat that existing technology often utilizes fan that projection arrangement is produced when the running is with head it off.
Generally speaking, existing heat abstractor uses a fan with the auxiliary discharge heat that projection arrangement was produced usually, yet often be equipped with under the situation of a plurality of light sources at projection arrangement, the heat that only uses a fan often to have the described light source of projection arrangement can't to be produced is respectively effectively discharged and the problem that causes heat to be worked as.Especially at light emitting diode (the light emitting diode that uses a plurality of different colours, during LED) as light source, because the light emitting diode of different colours has different thermal values and working temperature usually, green LED thermal value maximum for example, and the required working temperature of blue LED is lower, and it is very difficult to use single fan will suitably meet the radiating requirements of each color LEDs.Therefore, existing heat abstractor major part has plural fan dispels the heat at the light emitting diode of different colours respectively, to promote its radiating effect.Yet, so not only increase cost, to occupy volume bigger, and, will have influence on the quality of meeting and movie because fan regular meeting in operation produces noise.
In view of this, a kind of heat abstractor is provided and comprises the projection arrangement of this heat abstractor, suitable to reduce number of fans and to meet the radiating requirements of light source, an industry problem demanding prompt solution for this reason.
Summary of the invention
The object of the present invention is to provide a projection arrangement and heat abstractor thereof, the suitable number of fans that can be minimum of this heat abstractor meets the radiating requirements of light source, and the heat that projection arrangement is produced effectively is discharged outside to, and reduces its noise simultaneously.
For reaching above-mentioned purpose, projection arrangement of the present invention comprises one first light source, a secondary light source, one the 3rd light source and a heat abstractor.This heat abstractor comprises an airflow guidance device and a fan, and this airflow guidance device is suitable to define a first flow and one second runner.This first flow has a primary importance, and this second runner has a second place and one the 3rd position.This first light source, this secondary light source and the 3rd light source are to correspond respectively to this primary importance, this second place and the 3rd position to be provided with.This fan is suitable to produce an air-flow.This air-flow splits into one first air-flow and one second air-flow respectively after entering this first flow and this second runner of this airflow guidance device.Suitable this primary importance of this first air-flow with this first flow of flowing through, this second air-flow suitable this second place and the 3rd position with this second runner of flowing through in regular turn.By this, suitable this first light source of fan aid dispersion, this secondary light source and the 3rd light source institute heat of generation respectively that can be minimum of heat abstractor.
Description of drawings
For above-mentioned purpose, technical characterictic and advantage can be become apparent, below conjunction with figs. is elaborated to preferred embodiment of the present invention, wherein:
Fig. 1 is the synoptic diagram of projection arrangement of the present invention and heat abstractor.
Embodiment
See also Fig. 1, the projection arrangement 1 of one embodiment of the invention comprises one first light source 11, a secondary light source 12 and one the 3rd light source 13 and a heat abstractor 2.Be clear expression heat abstractor 2 of the present invention, Fig. 1 does not illustrate in the projection arrangement 1 other element with the no association of the present invention's spirit.Heat abstractor 2 comprises an airflow guidance device 21 and a fan 22.Wherein, airflow guidance device 21 is suitable defining a first flow 211 and one second runner 212, and an end terminal and second runner 212 of first flow 211 has a plurality of air holes 213,214 respectively.
Fan 22 is suitable to produce an air-flow 220, and after air-flow 220 entered the first flow 211 and second runner 212, air-flow 220 split into one first air-flow 220a and one second air-flow 220b.First flow 211 has a primary importance 21a, 212 of second runners have second place 21b and the 3rd position 21c, and first light source 11, secondary light source 12 and the 3rd light source 13 are to correspond respectively to primary importance 21a, second place 21b and the 3rd position 21c setting.By the configuration of said elements, the flowed through primary importance 21a of first flow 211 of the first air-flow 220a, the second air-flow 220b then flowed through the in regular turn second place 21b and the 3rd position 21c of second runner 212, and see through air hole 213,214 outside loss.By this, projection arrangement 1 only need use a fan 22 just can effectively reach the purpose of heat radiation three light sources 11,12,13.The structure of heat abstractor 2 of the present invention and air-flow guide mode will details are as follows.
The airflow guidance device 21 of heat abstractor 2 is preferably and comprises a guide duct, and in present embodiment, guide duct is a U-shaped guide duct 210.U-shaped guide duct 210 has one first side pipe 210a, a central connecting pipe 210b, one second side pipe 210c, an air intake vent 210d, one first kink 210e and one second kink 210f.Wherein, central connecting pipe 210b is suitable to be communicated with the first side pipe 210a and the second side pipe 210c, to form a U-shaped structure.The first side pipe 210a is suitable to define first flow 211, and the central connecting pipe 210b and the second side pipe 210c are suitable to define second runner 212 jointly.Primary importance 21a, second place 21b and the 3rd position 21c lay respectively on the first side pipe 210a, central connecting pipe 210b and the second side pipe 210c.The first kink 210e connects the first side pipe 210a and central connecting pipe 210b, and the second kink 210f connects the central connecting pipe 210b and the second side pipe 210c, and air intake vent 210d is arranged on the first kink 210e.
By this, the air-flow 220 that fan 22 produces can enter in the U-shaped guide duct 210 by air intake vent 210d, and splits into the first air-flow 220a and the second air-flow 220b.The first air-flow 220a enters the first side pipe 210a, and along the first flow 211 primary importance 21a that flows through, and is suitable to take away the heat that first light source 11 that is positioned at primary importance 21a is produced.The second air-flow 220b enters central connecting pipe 210b, the second kink 210f and the second side pipe 210c in regular turn, and the second place 21b of second runner 212 of flowing through in regular turn and the 3rd position 21c, the suitable heat that is produced with the 3rd light source 13 of taking away the secondary light source 12 that is positioned at second place 21b and the 3rd position 21c.
In present embodiment, first light source 11, secondary light source 12 and the 3rd light source 13 are three light emitting diodes (light-emitting diode, LED) assemblies.Because the usefulness and the energy dissipation rate of different LED assembly are all inequality, so the heat that it produced is also inequality.Generally speaking, the energy dissipation rate of green light LED assembly higher (about 70W), working temperature the highest (about 130 ℃), and then can produce more heat, the working temperature minimum (about 80 ℃) that the red-light LED assembly is required, the working temperature of blue-ray LED assembly (about 120 ℃) is then between green glow and red-light LED inter-module.Therefore in present embodiment,, and keep the lower working temperature of red LED assembly, preferably red LED assembly and green LED assembly are arranged at than the position near fan 22 by loss green LED assembly is produced a large amount of heats.Therefore, in this enforcement aspect, first light source 11 is red-light LED assemblies, and secondary light source 12 is green light LED assemblies, and the 3rd light source 13 is blue-ray LED assemblies.
The shunting ratio that enters the first air-flow 220a and the second air-flow 220b of the first flow 211 and second runner 212 respectively for suitable distribution, the air-flow 220 that fan 22 is produced has an air supply direction, and air supply direction and central connecting pipe 210b have an angle theta and come down to spend between 60 degree between 30.By adjusting angle theta, adjusting the shunting ratio of the first air-flow 220a, and make the second air-flow 220b see through air hole 214 outside loss with the heat that bigger airshed is produced secondary light source 12 and the 3rd light source 13 smoothly to the second air-flow 220b.
It should be noted that, when the second air-flow 220b flows to the second kink 210f, because the second kink 210f has bending angle, so when the second air-flow 220b passes through this place, collide the sidewall of the second kink 210f easily and the constricted flow of the second air-flow 220b is hindered, so will cause air-flow 220 all toward first air-flow 220a shunting, and increase the degree of difficulty of air-flow 220 shuntings.For avoiding above-mentioned situation, present embodiment is to be provided with at least one air hole 215 between second place 21b and the 3rd position 21c.Air hole 215 preferably is arranged at the second kink 210f, makes that partly the second air-flow 220b is seen through the air hole 215 that is positioned at the second kink 210f, the outside loss of part heat that secondary light source 12 is produced.The second air-flow 220b of remainder then flows to the second side pipe 210c along the second kink 210f, the 3rd light source 13 of the radiating requirements of then flowing through minimum, last air hole 214 outside loss toward second runner, 212 ends.Specifically, the quantity of the air hole 215 by adjusting the second kink 210f, size also can be controlled the shunting ratio of the first air-flow 220a and the second air-flow 220b further.If the quantity of the air hole 215 of the second kink 210f is many more, then the air flow rate is high more and then make the flow of the second air-flow 220b of the second place 21b that flows through big more.By this, flow through secondary light source 12 that is positioned at second place 21b and the flow that is positioned at the 3rd light source 13 of the 3rd position 21c of the second air-flow 220b can be controlled according to the radiating requirements of secondary light source 12 and the 3rd light source 13 respectively.
See also Fig. 1, airflow guidance device 21 also has a flow dividing structure, is arranged at the first kink 210e, and in the face of air intake vent 210d.Flow dividing structure has a baffle plate 216, and baffle plate 216 also can be assisted the shunting ratio of the first air-flow 220a to the second air-flow 220b of adjusting.By this, heat abstractor 2 just can be adjusted the shunting ratio of its air-flow 220, to reach better heat radiating effect according to the radiated energy of each light source.
For heat abstractor 2 can be shed the heat energy that first light source 11, secondary light source 12 and the 3rd light source 13 are produced enough more effectively, heat abstractor 2 also comprises one first heat radiator 23, one second heat radiator 24 and the 3rd heat radiator 25.Wherein, first heat radiator 23 is arranged at the primary importance 21a in the first flow 21 and connects first light source 11, and second heat radiator 24 and the 3rd heat radiator 25 are arranged at second place 21b and the 3rd position 21c in second runner 212 respectively and connect secondary light source 12 and the 3rd light source 13 respectively.Suitable first heat radiator, 23, the second air-flow 220b that can flow through of the first air-flow 220a are suitable with second heat radiator 24 and the 3rd heat radiator 25 of flowing through in regular turn, and by this, described heat radiator is suitable to pass through air-flow 220 outside loss with secondary light source with the heat that is produced.
The present invention is by adjust the size and the quantity of angle theta and air hole 213,214,215 according to the radiating requirements of each light source 11,12,13, adjusting the shunting ratio of the first air-flow 220a, and adjust flow through secondary light source 12 that is positioned at second place 21b and the flow that is positioned at the 3rd light source 13 of the 3rd position 21c to the second air-flow 220b.Must the explanation be, the enforcement aspect of aforementioned LED assembly as illustrative purposes only, but not in order to the restriction the present invention.For example first light source 11 also can be a green light LED assembly, and secondary light source 12 can be a red-light LED assembly, and the 3rd light source 13 is still a blue-ray LED assembly.Also or, first light source 11 is a red-light LED assembly, secondary light source 12 is a blue-ray LED assembly, the 3rd light source 13 is a green light LED assembly, this technical field know that usually the knowledgeable is after understanding the present invention, the heat that can be produced according to the Different Light assembly, the in addition configuration of conversion LED assembly and change the quantity of air hole 213 and the size of angle theta, and then the shunting ratio of control air-flow 220 easily.
In sum, heat abstractor compared to existing projection arrangement, the present invention can be according to the heat energy that Different Light produced, the angle that the adjustment fan is put and the quantity number of air hole, and then the shunting ratio of control air-flow, the air-flow that is produced effectively to utilize fan is reduced under the minimum situation number of fans, just can satisfy the Different Light assembly radiating requirements and condition, reach efficiently radiates heat purpose and and then the noise content that lowers heat abstractor to promote the quality of projection arrangement.
The above embodiments only are used for exemplifying the enforcement aspect of this creation, and the technical characterictic of explaining this creation, are not the protection category that is used for limiting this creation.Any be familiar with this operator can unlabored change or the arrangement of isotropism all belong to the scope that this creation is advocated, the rights protection scope of this aspect should be as the criterion with the application's claim institute restricted portion.
Claims (17)
1. heat abstractor that is used for projection arrangement, this projection arrangement comprises one first light source, a secondary light source and one the 3rd light source, and this heat abstractor comprises:
One airflow guidance device, comprise a guide duct, have one first side pipe, a central connecting pipe, one second side pipe and one first kink, this first side pipe is suitable to define a first flow, this central authorities' connecting pipe and this second side pipe are suitable to define one second runner jointly, and this first kink connects this first side pipe and this central authorities' connecting pipe; And
One fan, suitable to produce an air-flow, after wherein this air-flow enters this first flow and this second runner of this airflow guidance device, split into one first air-flow and one second air-flow;
Wherein this first flow has a primary importance, this second runner has a second place and one the 3rd position, this first light source, this secondary light source and the 3rd light source are to correspond respectively to this primary importance, this second place and the 3rd position are provided with, suitable this primary importance of this first air-flow with this first flow of flowing through, and this second air-flow suitable this second place and the 3rd position with this second runner of flowing through in regular turn, this airflow guidance device has a flow dividing structure and is arranged at this first kink, this flow dividing structure has a baffle plate, and this baffle plate is suitable with an auxiliary shunting ratio of adjusting this first air-flow to this second air-flow.
2. heat abstractor according to claim 1, it is characterized in that also comprising one first heat radiator, one second heat radiator and one the 3rd heat radiator, this first heat radiator, this second heat radiator and the 3rd heat radiator are arranged at this primary importance in this first flow, this second place and the 3rd position in this second runner respectively, and connect this first light source, this secondary light source and the 3rd light source respectively, this first air-flow is suitable with this first heat radiator of flowing through, and this second air-flow is suitable with this second heat radiator and the 3rd heat radiator of flowing through in regular turn.
3. heat abstractor according to claim 1 is characterized in that an end terminal and this second runner of this first flow of this airflow guidance device has at least one air hole respectively, and is suitable so that this first air-flow and the outside loss of second air-flow.
4. heat abstractor according to claim 3 is characterized in that having at least one air hole between this second place of this second runner and the 3rd position, and is suitable with this second air-flow of part loss.
5. heat abstractor according to claim 4, it is characterized in that this guide duct is a U-shaped guide duct, this central authorities' connecting pipe is suitable to be communicated with this first side pipe and this second side pipe, forming a U-shaped structure, and this primary importance, this second place and the 3rd position are to lay respectively on this first side pipe, this central authorities' connecting pipe and this second side pipe.
6. heat abstractor according to claim 5, it is characterized in that this U-shaped guide duct comprises an air intake vent, reaches one second kink, this second kink connects this central authorities' connecting pipe and this second side pipe, this air intake vent is arranged on this first kink, this air communication that this fan produces is crossed this air intake vent and is entered this U-shaped guide duct, and this at least one air hole that is positioned between this second place and the 3rd position is arranged on this second kink.
7. heat abstractor according to claim 6, it is characterized in that this fan has an air supply direction, this central authorities' connecting pipe of this air supply direction and this U-shaped guide duct has an angle, and this angle comes down to spend between 60 degree between 30, and is suitable to adjust the shunting ratio of this first air-flow to this second air-flow.
8. projection arrangement comprises:
One first light source;
One secondary light source;
One the 3rd light source; And
One heat abstractor according to claim 1;
Wherein this first light source, this secondary light source and the 3rd light source be respectively to should primary importance, this second place and the 3rd position be provided with.
9. projection arrangement according to claim 8, it is characterized in that this heat abstractor also comprises one first heat radiator, one second heat radiator and one the 3rd heat radiator, this first heat radiator, this second heat radiator and the 3rd heat radiator are arranged at this primary importance in this first flow, this second place and the 3rd position in this second runner respectively, and connect this first light source, this secondary light source and the 3rd light source respectively, this first air-flow is suitable with this first heat radiator of flowing through, and this second air-flow is suitable with this second heat radiator and the 3rd heat radiator of flowing through in regular turn.
10. heat abstractor according to claim 8 is characterized in that having at least one air hole between this second place of this second runner and the 3rd position, and is suitable with this second air-flow of part loss.
11. projection arrangement according to claim 10, it is characterized in that this airflow guidance device is a U-shaped guide duct, this central authorities' connecting pipe is suitable to be communicated with this first side pipe and this second side pipe, forming a U-shaped structure, and this primary importance, this second place and the 3rd position are to lay respectively on this first side pipe, this central authorities' connecting pipe and this second side pipe.
12. projection arrangement according to claim 11, it is characterized in that this U-shaped guide duct comprises an air intake vent and one second kink, this second kink connects this central authorities' connecting pipe and this second side pipe, this air intake vent is arranged on this first kink, this air communication that this fan produces is crossed this air intake vent and is entered this U-shaped guide duct, and this at least one air hole that is positioned between this second place and the 3rd position is arranged on this second kink.
13. projection arrangement according to claim 12, it is characterized in that this fan has an air supply direction, this central authorities' connecting pipe of this air supply direction and this U-shaped guide duct has an angle, and this angle comes down to spend between 60 degree between 30, and is suitable to adjust the shunting ratio of this first air-flow to this second air-flow.
14. projection arrangement according to claim 8 is characterized in that this first light source, this secondary light source and the 3rd light source are three light-emitting diode components.
15. projection arrangement according to claim 14 is characterized in that this first light source is a red-light LED assembly, this secondary light source is a green light LED assembly, and the 3rd light source is a blue-ray LED assembly.
16. projection arrangement according to claim 14 is characterized in that this first light source is a green light LED assembly, this secondary light source is a red-light LED assembly, and the 3rd light source is a blue-ray LED assembly.
17. projection arrangement according to claim 14 is characterized in that this first light source is a red-light LED assembly, this secondary light source is a blue-ray LED assembly, and the 3rd light source is a green light LED assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101489584A CN101907819B (en) | 2009-06-08 | 2009-06-08 | Heat dissipation device applied to projection device and projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101489584A CN101907819B (en) | 2009-06-08 | 2009-06-08 | Heat dissipation device applied to projection device and projection device |
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| Publication Number | Publication Date |
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| CN101907819A CN101907819A (en) | 2010-12-08 |
| CN101907819B true CN101907819B (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101489584A Active CN101907819B (en) | 2009-06-08 | 2009-06-08 | Heat dissipation device applied to projection device and projection device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013042193A1 (en) | 2011-09-20 | 2013-03-28 | Ｎｅｃディスプレイソリューションズ株式会社 | Light source device and projection-type display device |
| JP6726401B2 (en) * | 2016-08-23 | 2020-07-22 | 株式会社リコー | Light source device, image projection device, and method for arranging light source device |
| CN111722458A (en) * | 2019-03-22 | 2020-09-29 | 秦少平 | Heat dissipation method of infrared blood vessel in-situ display instrument |
| CN110750027B (en) * | 2019-09-29 | 2021-10-19 | 深圳市火乐科技发展有限公司 | Projector with a light source |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667496A (en) * | 2004-03-10 | 2005-09-14 | 精工爱普生株式会社 | Projector |
| CN1779555A (en) * | 2004-10-15 | 2006-05-31 | 三洋电机株式会社 | Projection type video display apparatus |
| CN101644878A (en) * | 2009-09-03 | 2010-02-10 | 苏州佳世达光电有限公司 | Projecting device |
-
2009
- 2009-06-08 CN CN2009101489584A patent/CN101907819B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667496A (en) * | 2004-03-10 | 2005-09-14 | 精工爱普生株式会社 | Projector |
| CN1779555A (en) * | 2004-10-15 | 2006-05-31 | 三洋电机株式会社 | Projection type video display apparatus |
| CN101644878A (en) * | 2009-09-03 | 2010-02-10 | 苏州佳世达光电有限公司 | Projecting device |
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