CN203882078U - DMD (digital micromirror device) heat dissipating structure and projector - Google Patents
DMD (digital micromirror device) heat dissipating structure and projector Download PDFInfo
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- CN203882078U CN203882078U CN201420188810.XU CN201420188810U CN203882078U CN 203882078 U CN203882078 U CN 203882078U CN 201420188810 U CN201420188810 U CN 201420188810U CN 203882078 U CN203882078 U CN 203882078U
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- Prior art keywords
- dmd
- transparent heat
- radiator structure
- heat sink
- projector
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- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910052594 sapphire Inorganic materials 0.000 claims description 8
- 239000010980 sapphire Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a DMD (digital micromirror device) heat dissipating structure and a projector. According to the DMD heat dissipating structure, the reverse side of a DMD is provided with a heat dissipating device, and the obverse side of the DMD is provided with a transparent heat dissipating device. The DMD heat dissipating structure not only carries out heat dissipation by using the reverse side of the DMD through the heat dissipating device, but also carries out auxiliary heat dissipation by using the obverse side of the DMD through the transparent heat dissipating device, thereby increasing the heat dissipating area of the DMD. Therefore, the DMD heat dissipating structure and the projector provided with the DMD heat dissipating structure are high in heat dissipating efficiency.
Description
Technical field
The utility model relates to projector's technical field, more particularly, relates to a kind of DMD radiator structure and projector.
Background technology
The important numbers optical devices of digital micro-mirror device (digit5l mirror device is called for short DMD) for using in projector at present, thus it comes reflection ray to form picture by ten hundreds of small controlled eyeglasses.
The light that in projector, light source sends is radiated at and on DMD, can makes the temperature of DMD increase, and the upper integrated a large amount of control circuit of DMD also can produce sizable heat when work simultaneously, thereby causes DMD temperature to rise.Too high temperature can make reduce the serviceable life of DMD, even may cause DMD to damage.Therefore, DMD need to arrange radiator structure and be operated in specified temperature working environment to guarantee it, to guarantee its performance and serviceable life.
With reference to figure 1, be DMD radiator structure conventional in prior art, wherein, the front that the face at DMD1 display window 3 places is DMD1, with the face of described vis-a-vis be the back side.In prior art, DMD radiator structure is only at the back side of DMD1, heating radiator 2 to be set.
Yet, the radiating efficiency of existing DMD radiator structure is unsatisfactory, because DMD radiator structure is the inside that need to be arranged on projector, the number of the heat radiator of its heating radiator and area of dissipation thereof are subject to the restriction of projector inner space, make heating radiator and air contact area less, cause its radiating efficiency lower.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of DMD radiator structure and projector.
For achieving the above object, the utility model provides following technical scheme:
A DMD radiator structure, the back side of described DMD is provided with heating radiator, and the front of described DMD is provided with transparent heat abstractor.
Preferably, in above-mentioned DMD radiator structure, described transparent heat abstractor is transparent heat sink.
Preferably, in above-mentioned DMD radiator structure, described transparent heat sink inside surface or outside surface are provided with anti-reflection film.
Preferably, in above-mentioned DMD radiator structure, the side of described DMD is provided with ledge structure, and described transparent heat sink is provided with the annular projection structure suitable with described ledge structure, and the ledge structure of described DMD embeds in described annular projection structure.
Preferably, in above-mentioned DMD radiator structure, the side of described DMD is provided with metal shell or ceramic package.
Preferably, in above-mentioned DMD radiator structure, the area of described transparent heat sink is greater than the area in described DMD front.
Preferably, in above-mentioned DMD radiator structure, the region division that described transparent heat sink exceeds described DMD front is comb teeth-shaped heat radiating fin structure.
Preferably, in above-mentioned DMD radiator structure, described transparent heat sink is sapphire transparent heat sink.
The utility model also provides a kind of projector, and this projector comprises:
Casing;
Be arranged on the DMD radiator structure in described casing;
Wherein, described DMD radiator structure is above-mentioned any DMD radiator structure.
Preferably, in above-mentioned projector, described casing is provided with window, the transparent heat abstractor of described DMD radiator structure is transparent heat sink, the region division that described transparent heat sink exceeds described DMD front is comb teeth-shaped heat radiating fin structure, and it is outside that described comb teeth-shaped heat radiating fin structure extends to described casing by described window.
DMD radiator structure provided by the utility model, except arranging heating radiator at the DMD back side, is also provided with transparent heat abstractor in the front of DMD, and described transparent heat abstractor utilizes the front of described DMD to carry out auxiliary heat dissipation, has increased the area of dissipation of DMD.Therefore, described DMD radiator structure and to have the radiating efficiency of projector of described DMD radiator structure high.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of common DMD radiator structure;
Fig. 2 is the structural representation of DMD radiator structure embodiment described in the utility model;
The front elevation of a kind of radiator structure for DMD that Fig. 3 provides for the utility model embodiment;
The vertical view of a kind of radiator structure for DMD that Fig. 4 provides for the utility model embodiment;
The another kind that Fig. 5 provides for the utility model is for the structural representation of the radiator structure of DMD;
The structural representation of a kind of projector that Fig. 6 provides for the utility model embodiment;
The structural representation of the another kind of projector that Fig. 7 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
It is a kind of for DMD radiator structure that the embodiment of the present application provides, and the back side of described DMD is provided with heating radiator, and the front of described DMD is provided with transparent heat abstractor.
Described DMD radiator structure, except the back side at DMD arranges heating radiator, also arranges transparent heat abstractor in the front of DMD, visible, and described transparent heat abstractor can utilize the front of DMD to carry out auxiliary heat dissipation, has increased the area of dissipation of DMD.Therefore, described DMD radiator structure and to have the radiating efficiency of projector of described DMD radiator structure high.
The application's a embodiment provides a kind of DMD radiator structure, and with reference to figure 2, described DMD radiator structure comprises: DMD1; Be fixed on the heating radiator 2 at the described DMD1 back side; Be fixed on the transparent heat abstractor 5 in described DMD1 front.
With reference to figure 3 and Fig. 4, transparent heat abstractor 5 is transparent heat sink 6 described in the present embodiment.In order to increase the transmittance of described transparent heat sink 6, can towards the surface of described DMD1 mono-side, anti-reflection film be set at described transparent heat sink 6, or the surface that deviates from described DMD1 mono-side at described transparent heat sink 6 arranges anti-reflection film, and inside surface or the outside surface at described transparent heat sink 6 is provided with anti-reflection film.
Described transparent heat abstractor 5 adopts transparent heat sink material preparation, can when realizing heat radiation, not affect the light-path of the display window 3 of DMD1.In order further to improve radiating efficiency, the area that described transparent heat sink 6 is set is greater than the front of described DMD1, with increasing heat radiation area.
Preferably, transparent heat sink 6 is sapphire transparent heat sink described in the present embodiment, and described transparent heat sink 6 adopts and has high thermal conductivity and transparent sapphire glass preparation.The transmittance of sapphire glass, more than 85%, has good light transmission performance, and its coefficient of heat conductivity is 35W/mK, has good heat-conductive characteristic, is convenient to heat radiation.When adopting the described transparent heat sink 6 of sapphire glass making, by being set, anti-reflection film can make transmittance be greater than 95%, when realizing raising radiating efficiency, guaranteed the light transmission of display window 3.
It should be noted that, described transparent heat sink material comprises sapphire glass, but is not limited to sapphire glass.Transparent heat sink prepared by described heat sink material is provided with after anti-reflection film, and transmittance is greater than 95%, and the coefficient of heat conductivity (coefficient of heat conductivity of air is 0.023W/mK) that coefficient of heat conductivity is greater than air all can be used for technical scheme described in the embodiment of the present application.
As shown in Figure 2, the side 4 of DMD1 is provided with ledge structure, and therefore, as shown in Figure 3 and Figure 4, described transparent heat sink 6 is provided with the annular projection structure 7 suitable with described ledge structure, and the ledge structure of described DMD embeds in described annular projection structure 7.
Why designing described annular projection structure 7 matches with the ledge structure of described side 4, on the one hand, as above-mentioned, can better realize the fixing of transparent heat sink 6 and DMD1, on the other hand, by described annular projection structure 7, can also increase the contact area of described transparent heat sink 6 and DMD1, can utilize the side 4 of DMD to dispel the heat, and then increase area of dissipation, further improve radiating efficiency.
Described side 4 is provided with metal shell or ceramic package.Because metal material or the heat conductivility of stupalith are better, on the one hand, can be convenient to DMD1 internal heat to be transmitted to fast heating radiator 2 and transparent heat abstractor 5, on the other hand, when described transparent heat abstractor 5 is provided with as above-mentioned annular projection structure 7, can also faster the heat of DMD1 be delivered to described annular projection structure 7 by described side 4, utilize the side of DMD1 to dispel the heat, further improve the radiating efficiency of DMD1.
With reference to figure 5, in order to improve cross-ventilation speed, further to improve radiating efficiency, the region division that described transparent heat sink 6 can also be exceeded to DMD1 front is comb teeth-shaped heat radiating fin structure.
Fig. 5 illustrated embodiment is that the surrounding that described transparent heat sink 6 is exceeded to the region in DMD1 front is all set to comb teeth-shaped heat radiating fin structure, in other embodiments, also can only on the one side in described region or any two limits or any three limits be set to comb teeth-shaped heat radiating fin structure.Make like this air not only can flow at the surfaces externally and internally of described transparent heat sink 6, can also make air flow in the direction perpendicular to described transparent heat sink 6, increased the convection velocity of air, further improved radiating efficiency.
Known by foregoing description, the DMD radiator structure described in the embodiment of the present application, by described transparent heat abstractor, can utilize the front of DMD and side to dispel the heat, and has higher radiating efficiency.
Another embodiment of the application also provides a kind of projector, described projector is that digital light is processed (DLP, Digital Light Processing) projector, with reference to figure 6, described projector comprises: casing 8, described projector also comprises the DMD radiator structure being arranged in described casing.Described DMD radiator structure is the DMD radiator structure described in above-described embodiment, and described DMD radiator structure comprises: transparent heat abstractor 5, DMD and heating radiator.
The heating radiator of described DMD radiator structure is fixed on the bottom surface of described casing 8, so that transfer heat to faster casing 8, thus be delivered to extraneous air heat radiation.For the ease of illustrating in Fig. 6 and not shown described heating radiator.
Described in the present embodiment, projector adopts and to be provided with DMD radiator structure described in above-described embodiment, has greatly increased the area of dissipation of DMD, therefore, has higher radiating efficiency.
With reference to figure 7, the structural representation of the another kind of projector that Fig. 7 provides for the embodiment of the present application, in order further to improve the radiating efficiency of projector, adopt the transparent heat abstractor 5 of Fig. 5 illustrated embodiment, the region division that the transparent heat sink 6 of described transparent heat abstractor 5 exceeds DMD front is comb teeth-shaped heat radiating fin structure, on described casing 8 surfaces, is provided with window, and described comb teeth-shaped heat radiating fin structure extends to described casing 8 outsides by described window, to accelerate heat conduction, improve radiating efficiency.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a DMD radiator structure, the back side of described DMD is provided with heating radiator, it is characterized in that, and the front of described DMD is provided with transparent heat abstractor.
2. DMD radiator structure according to claim 1, is characterized in that, described transparent heat abstractor is transparent heat sink.
3. DMD radiator structure according to claim 2, is characterized in that, described transparent heat sink inside surface or outside surface are provided with anti-reflection film.
4. DMD radiator structure according to claim 2, it is characterized in that, the side of described DMD is provided with ledge structure, and described transparent heat sink is provided with the annular projection structure suitable with described ledge structure, and the ledge structure of described DMD embeds in described annular projection structure.
5. DMD radiator structure according to claim 4, is characterized in that, the side of described DMD is provided with metal shell or ceramic package.
6. DMD radiator structure according to claim 2, is characterized in that, the area of described transparent heat sink is greater than the area in described DMD front.
7. DMD radiator structure according to claim 2, is characterized in that, the region division that described transparent heat sink exceeds described DMD front is comb teeth-shaped heat radiating fin structure.
8. according to the DMD radiator structure described in claim 2-7 any one, it is characterized in that, described transparent heat sink is sapphire transparent heat sink.
9.Yi Zhong projector, is characterized in that, comprising:
Casing;
Be arranged on the DMD radiator structure in described casing;
Wherein, described DMD radiator structure is the DMD radiator structure described in claim 1-8 any one.
10. projector according to claim 9, it is characterized in that, described casing is provided with window, the transparent heat abstractor of described DMD radiator structure is transparent heat sink, the region division that described transparent heat sink exceeds described DMD front is comb teeth-shaped heat radiating fin structure, and it is outside that described comb teeth-shaped heat radiating fin structure extends to described casing by described window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188810.XU CN203882078U (en) | 2014-04-17 | 2014-04-17 | DMD (digital micromirror device) heat dissipating structure and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188810.XU CN203882078U (en) | 2014-04-17 | 2014-04-17 | DMD (digital micromirror device) heat dissipating structure and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882078U true CN203882078U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188810.XU Expired - Lifetime CN203882078U (en) | 2014-04-17 | 2014-04-17 | DMD (digital micromirror device) heat dissipating structure and projector |
Country Status (1)
| Country | Link |
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| CN (1) | CN203882078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018032856A1 (en) * | 2016-08-16 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Projection apparatus and heat dissipation system thereof |
| CN111385544A (en) * | 2018-12-27 | 2020-07-07 | 青岛海信激光显示股份有限公司 | Optical engine and projection equipment |
| CN111856855A (en) * | 2019-04-29 | 2020-10-30 | 中强光电股份有限公司 | Optical machine module and projector |
-
2014
- 2014-04-17 CN CN201420188810.XU patent/CN203882078U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018032856A1 (en) * | 2016-08-16 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Projection apparatus and heat dissipation system thereof |
| CN111385544A (en) * | 2018-12-27 | 2020-07-07 | 青岛海信激光显示股份有限公司 | Optical engine and projection equipment |
| CN111856855A (en) * | 2019-04-29 | 2020-10-30 | 中强光电股份有限公司 | Optical machine module and projector |
| CN111856855B (en) * | 2019-04-29 | 2022-02-22 | 中强光电股份有限公司 | Optical machine module and projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171030 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Patentee before: YLX Inc. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address after: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Shenzhen, Shenzhen, Guangdong 1089 Nanshan District road 1089, Shenzhen integrated circuit design application Industrial Park, 4 floor. Patentee before: APPOTRONICS Corp.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |
|
| CX01 | Expiry of patent term |