CN111208695A - Light source assembly and laser projection display equipment with same - Google Patents
Light source assembly and laser projection display equipment with same Download PDFInfo
- Publication number
- CN111208695A CN111208695A CN201811400973.9A CN201811400973A CN111208695A CN 111208695 A CN111208695 A CN 111208695A CN 201811400973 A CN201811400973 A CN 201811400973A CN 111208695 A CN111208695 A CN 111208695A
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- China
- Prior art keywords
- heat
- light source
- source assembly
- housing
- fluorescent wheel
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a light source assembly and a laser projection display device with the same, wherein the light source assembly comprises: the inner wall of the shell is provided with a heat absorption structure; the fluorescent wheel device is arranged in the shell. The technical scheme of the invention effectively solves the problem of poor heat dissipation effect of the laser projection display equipment in the prior art.
Description
Technical Field
The invention relates to the technical field of equipment heat dissipation, in particular to a light source assembly and laser projection display equipment with the same.
Background
The laser projection display technology is an advanced projection display technology at present, and has the advantages of multiple colors, long service life and stable operation. The most projection display mode adopted by the current laser projection display equipment is that light emitted by a high-power laser light source generally passes through a fluorescent wheel which rotates at a high speed, fluorescent powder with different colors is coated on the fluorescent wheel in a segmented mode, when the fluorescent wheel rotates at a high speed, emission of different primary color light can be achieved, and people can see colorful pictures. The fluorescent wheel and the laser element of the laser projection display equipment in the prior art usually adopt the structures of a heat pipe and a heating fan to dissipate heat, the fluorescent wheel and the laser element are arranged in a shell, heat exchangers are arranged inside and outside the shell, the inner heat exchanger is communicated with the outer heat exchanger through the heat pipe, circulation of a refrigerant inside and outside the shell is realized through the heat pipe, in addition, electric fans are arranged inside and outside the shell, the electric fans in the shell can strengthen air flow in the shell, and the electric fans outside the shell can accelerate heat dissipation of an external radiator. Although the structure is simple in design and low in cost, in practical application, the heat dissipation effect is not good, especially the heat dissipation effect of a laser light emitting element with higher power is worse, because the inner space of the shell is smaller, the area of the fins of the inner heat exchanger is insufficient, and the air circulation stroke in the shell is shorter.
Disclosure of Invention
The invention mainly aims to provide a light source assembly and a laser projection display device with the same, so as to solve the problem that the laser projection display device in the prior art is poor in heat dissipation effect.
To achieve the above object, according to one aspect of the present invention, there is provided a light source assembly including: the heat-absorbing structure comprises a shell, wherein the inner wall of the shell is provided with a heat-absorbing structure, and the heat-absorbing structure comprises fins and/or ribs and/or a convex-concave structure; the fluorescent wheel device is arranged in the shell.
Further, the inner wall of the housing has a heat radiation layer, which is located at the outermost side.
Further, the outer wall of the housing has a heat radiation layer.
Further, the fluorescent wheel device has a heat radiation layer.
Further, a heat radiation layer is coated on an outer surface of the substrate of the wavelength conversion material of the fluorescent wheel device.
Further, the heat radiation layer is a nano coating.
Further, the fluorescent wheel device is provided with a heat dissipation structure, and the heat dissipation structure comprises fins and/or ribs and/or convex-concave structures.
According to another aspect of the present invention, there is provided a laser projection display device, including a light source assembly and an external heat exchange assembly, the external heat exchange assembly is connected to the light source assembly, and the light source assembly is the above-mentioned light source assembly.
Further, the light source assembly still includes inside heat exchange assembly, and outside heat exchange assembly includes the heat pipe, the outside heat exchanger and the outside fan that link to each other with the heat pipe, and the heat pipe passes the casing and links to each other with inside heat exchange assembly, and outside fan sets up so that outside fan forces the heat transfer to outside heat exchanger with outside heat exchanger is adjacent.
By applying the technical scheme of the invention, the light source assembly comprises a fluorescent wheel device and a shell, the fluorescent wheel device is arranged in the shell and comprises a rotating fluorescent wheel and a laser element emitting laser, the fluorescent wheel device can generate a large amount of heat in the operation process of equipment to raise the temperature of the fluorescent wheel device, and the inner wall of the shell is provided with a heat absorption structure, specifically, the heat absorption structure comprises fins and/or ribs and/or a convex-concave structure; the heat absorption structure on the shell absorbs the heat of the air in the shell, so that the temperature in the shell is reduced, and the fluorescent wheel device in the shell is protected. The technical scheme of the invention effectively solves the problem of poor heat dissipation effect of the laser projection display equipment in the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an embodiment of a laser projection display device according to the present invention.
Wherein the figures include the following reference numerals:
10. a light source assembly; 11. a housing; 111. a heat radiation layer; 12. a fluorescent wheel device; 121. a heat dissipation structure.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
As shown in fig. 1, the light source assembly 10 of the present embodiment includes: the fluorescent wheel device comprises a shell 11 and a fluorescent wheel device 12, wherein the inner wall of the shell 11 is provided with a heat absorption structure which comprises fins and/or ribs and/or a convex-concave structure. A fluorescent wheel arrangement 12 is arranged within the housing 11.
With the technical solution of the present embodiment, the light source assembly 10 includes a fluorescent wheel device 12 and a housing 11, the fluorescent wheel device 12 is disposed in the housing 11, the fluorescent wheel device 12 includes a rotating fluorescent wheel and a laser element emitting laser light, during the operation of the apparatus, the fluorescent wheel device 12 generates a large amount of heat, so that the temperature of the fluorescent wheel device 12 is increased, and the inner wall of the housing 11 has a heat absorbing structure, specifically, the heat absorbing structure includes fins and/or ribs and/or convex-concave structures. The heat of the air in the shell is absorbed by the heat absorbing structure on the shell, so that the temperature in the shell is reduced, and the fluorescent wheel device 12 in the shell is protected. The technical scheme of this embodiment has solved the poor problem of laser projection display device radiating effect among the prior art effectively.
It should be noted that the FINs, ribs and convex-concave structures can increase the surface area of the inner wall of the housing 11, and thus increase the heat absorption area of the housing 11, so as to improve the heat absorption effect of the device.
As shown in fig. 1, in the solution of the present embodiment, the inner wall of the housing 11 has a heat radiation layer 111, and the heat radiation layer 111 is located on the inner cavity side of the housing 11. The heat radiation layer 111 is coated on the surface of the heat absorbing structure to enhance the heat absorbing capability and help the housing 11 absorb the heat emitted in the air.
As shown in fig. 1, in the present embodiment, the outer wall of the housing 11 has a heat radiation layer 111. The outer wall of the housing 11 may also have fins and/or ribs and/or convex-concave structures, which may increase the surface area of the outer wall of the housing 11, and increase the contact area between the outer wall of the housing 11 and the outside air, so as to increase the heat dissipation capability of the outer wall of the housing 11. If the outer wall of the case 11 has fins and/or ribs and/or convexo-concave structures, the heat radiation layer 111 is coated on the surface of the fins and/or ribs and/or convexo-concave structures, and if the outer wall of the case 11 has no fins and/or ribs and/or convexo-concave structures, the heat radiation layer 111 is directly coated on the surface of the outer wall of the case 11. The heat radiation layer 111 can enhance the heat radiation capability of the outer wall of the housing 11, and radiate the heat in the housing 11 to the air outside the housing 11 more quickly.
As shown in fig. 1, in the present embodiment, the fluorescent wheel device 12 has a heat radiation layer 111. The fluorescent wheel device 12 includes a rotating fluorescent wheel and a laser element emitting laser, and during the operation of the apparatus, the fluorescent wheel device 12 generates a large amount of heat to raise the temperature of the fluorescent wheel device 12, and the heat radiation layer 111 can enhance the heat radiation to dissipate the heat of the fluorescent wheel device 12 as soon as possible.
As shown in fig. 1, in the present embodiment, a heat radiation layer 111 is coated on an outer surface of a substrate of a wavelength conversion material of a luminescent wheel device 12. The outer surface of the heating device of the fluorescent wheel device 12 is coated with the thermal radiation layer 111, so that the heat dissipation capability of the fluorescent wheel device 12 can be enhanced, and the heat generated by the fluorescent wheel device 12 can be dissipated into the air in the shell 11 more quickly, so that the temperature of the fluorescent wheel device 12 is not too high, the reduction of the working efficiency of the fluorescent wheel device 12 is avoided, and the service life is reduced.
As shown in fig. 1, in the solution of the present embodiment, the heat radiation layer 111 is a nano coating. The heat radiation layer 111 is a high-radiation nano-coating, specifically, a graphene nano-coating, and has a thermal emissivity of 0.9 or more.
As shown in fig. 1, in the solution of the present embodiment, the fluorescent wheel device 12 is provided with a heat dissipation structure 121, and the heat dissipation structure 121 includes fins and/or ribs and/or a convex-concave structure. The laser element of the fluorescent wheel device 12 comprises a laser emitting tube, wherein the front part and the back part of the laser emitting tube are provided with heat dissipation structures 121, the heat dissipation structure 121 at the front part of the laser emitting tube is a square plate-shaped structure, a through hole is formed in the middle of the square plate-shaped structure, a laser beam can pass through the heat dissipation structure 121 at the back part conveniently, the heat dissipation structure 121 at the back part is a circular plate-shaped structure, and the shape of the heat dissipation structure 121 is matched with the shape of the laser emitting tube. The heat dissipation structure 121 may be fixedly connected to the laser emitting barrel by a fastener. The surface of the heat dissipation structure 121 is also coated with a heat radiation layer 111, and the heat radiation layer 111 is a high-radiation nano-coating, and particularly, may be a graphene nano-coating. The heat radiation layer 111 can enhance heat radiation, so that heat of the laser emission barrel can be dissipated as soon as possible.
The application also provides a laser projection display device, which comprises a light source assembly 10 and an external heat exchange assembly, wherein the external heat exchange assembly is connected with the light source assembly 10, and the light source assembly 10 is the light source assembly 10. In addition to dissipating heat inside the housing 11 to the outside of the housing 11 through the fins and/or ribs and/or the convex-concave structure on the outer wall of the housing 11 and the heat radiation layer 111, heat can also be dissipated through an external heat exchange assembly.
In the technical solution of this embodiment, the light source assembly 10 further includes an internal heat exchange assembly, where the external heat exchange assembly includes a heat pipe, an external heat exchanger connected to the heat pipe, and an external fan, the heat pipe passes through the housing 11 and is connected to the internal heat exchange assembly, and the external fan is disposed adjacent to the external heat exchanger so that the external fan forcibly exchanges heat with the external heat exchanger. An internal heat exchange assembly is located within the housing 11, the internal heat exchange assembly including an internal heat exchanger and an internal fan. The internal heat exchanger is arranged between the internal fan and the fluorescent wheel device 12, the internal heat exchanger and the external heat exchanger are communicated through the heat pipe, the refrigerant absorbs heat in the internal heat exchanger and becomes gaseous, the refrigerant enters the external heat exchanger through the heat pipe, the heat is dissipated, and the refrigerant is changed into liquid and returns to the internal heat exchanger. The refrigerant continuously circulates between the inner heat exchanger and the outer heat exchanger, and brings heat in the casing 11 to the outside of the casing 11, thereby reducing the temperature in the casing 11. The internal fan and the external fan can accelerate the air flow, accelerate the heat exchange between the air and the refrigerant and improve the heat absorption and radiation efficiency. The external fan may also help the outer wall of the housing 11 dissipate heat.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A light source assembly, comprising:
a housing (11), the inner wall of the housing (11) having a heat absorbing structure comprising fins and/or ribs and/or a convex-concave structure;
a fluorescent wheel arrangement (12), the fluorescent wheel arrangement (12) being disposed within the housing (11).
2. The light source assembly according to claim 1, characterized in that the inner wall of the housing (11) has a heat radiating layer (111), the heat radiating layer (111) being located on the inner cavity side of the housing (11).
3. Light source assembly according to claim 1, characterized in that the outer wall of the housing (11) has a heat radiating layer (111).
4. The light source assembly according to claim 1, characterized in that the fluorescent wheel device (12) has a heat radiating layer (111).
5. The light source assembly according to claim 4, characterized in that the heat radiating layer (111) is coated on an outer surface of the substrate of wavelength converting material of the fluorescent wheel device (12).
6. The light source assembly according to claim 4 or 5, characterized in that the heat radiating layer (111) is a nanocoating.
7. The light source assembly according to claim 1, wherein the fluorescent wheel device (12) is provided with a heat dissipation structure (121), the heat dissipation structure (121) comprising fins and/or ribs and/or relief structures.
8. A laser projection display device comprising a light source assembly (10) and an external heat exchange assembly connected to the light source assembly (10), characterized in that the light source assembly (10) is a light source assembly (10) as claimed in any one of claims 1 to 7.
9. The laser projection display device according to claim 8, wherein the light source assembly (10) further comprises an internal heat exchange assembly, the external heat exchange assembly comprising a heat pipe, an external heat exchanger connected to the heat pipe, and an external fan, the heat pipe passing through the housing (11) and being connected to the internal heat exchange assembly, the external fan being disposed adjacent to the external heat exchanger such that the external fan forcibly exchanges heat with the external heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400973.9A CN111208695A (en) | 2018-11-22 | 2018-11-22 | Light source assembly and laser projection display equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400973.9A CN111208695A (en) | 2018-11-22 | 2018-11-22 | Light source assembly and laser projection display equipment with same |
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| Publication Number | Publication Date |
|---|---|
| CN111208695A true CN111208695A (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811400973.9A Pending CN111208695A (en) | 2018-11-22 | 2018-11-22 | Light source assembly and laser projection display equipment with same |
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| CN207851490U (en) * | 2018-01-26 | 2018-09-11 | 无锡视美乐激光显示科技有限公司 | A kind of laser projection device |
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| CN102330953A (en) * | 2011-05-31 | 2012-01-25 | 昆山能缇精密电子有限公司 | Improved LED (Light-Emitting Diode) lamp holder |
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Application publication date: 20200529 |