CN114527621A - Directional heat abstractor of LCD projecting apparatus - Google Patents
Directional heat abstractor of LCD projecting apparatus Download PDFInfo
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- CN114527621A CN114527621A CN202210247545.7A CN202210247545A CN114527621A CN 114527621 A CN114527621 A CN 114527621A CN 202210247545 A CN202210247545 A CN 202210247545A CN 114527621 A CN114527621 A CN 114527621A
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- heat dissipation
- directional
- projector
- lcd
- dissipation device
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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
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Abstract
The invention discloses a directional heat dissipation device of an LCD projector, wherein a directional heat dissipation device is fixedly arranged on a main body bracket of the directional heat dissipation device, a directional heat dissipation fan is arranged in the main body bracket of the directional heat dissipation device in a clearance way, and a heat dissipation cover plate is fixedly arranged at the upper end of the directional heat dissipation fan of the directional heat dissipation device; a heat source radiator is also arranged in the directional heat dissipation device main body bracket, a gap is reserved between the heat source radiator of the directional heat dissipation device and a directional heat dissipation fan of the directional heat dissipation device, and one end of the heat source radiator of the directional heat dissipation device is fixedly connected with the light source heat dissipation substrate through a heat conduction rod; the directional heat dissipation device heat dissipation cover plate is provided with an auxiliary heat dissipation device, and the auxiliary heat dissipation device of the directional heat dissipation device is in adaptive connection with the projector body. The invention ensures that the air inlet surface is concentrated and the air inlet direction is restrained, so that the projector body can dissipate heat more quickly, and compared with the prior art, the invention effectively reduces the number of heat dissipation fans, reduces the production cost of the projector and reduces the space volume of the projector.
Description
Technical Field
The invention relates to the technical field of projector heat dissipation devices, in particular to a directional heat dissipation device of an LCD projector.
Background
A projector, also called a projector, is a device that can project images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, etc. through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment places, and there are different types such as CRT, LCD, DLP and the like according to different working modes.
The LCD projector utilizes the photoelectric effect of liquid crystal, namely the arrangement of liquid crystal molecules is changed under the action of an electric field to influence the light transmittance or the reflectivity of a liquid crystal unit, thereby influencing the optical property of the liquid crystal unit and generating images with different gray levels and colors; the highest supported resolution of the LCD projector can reach 1600 multiplied by 1200(UXGA), the service time can be prolonged to more than 8 hours, the LCD projector has high brightness and high fidelity image color, and various video signals can be conveniently accessed.
LCD projector can produce a large amount of heats in the use, and these heats can cause the influence to internal element if not in time dispel the heat, shorten LCD projector's life, and in prior art, carry out radiating mode to LCD projector and be fixed in near the heat source with the fan mostly, the air inlet face is more dispersed and does not retrain the direction of air inlet.
Therefore, the directional heat dissipation device for the LCD projector is designed, so that heat generated by the LCD projector in the using process is dissipated timely, and the LCD projector can be directionally dissipated, and the directional heat dissipation device becomes a further improvement direction.
Disclosure of Invention
In order to solve the technical problem, the invention provides a directional heat dissipation device for an LCD projector.
The invention provides the following technical scheme: a directional heat dissipation device of an LCD projector comprises a main body support, a directional heat dissipation device, an auxiliary heat dissipation device and a projector body, wherein the directional heat dissipation device is fixedly installed on the main body support and comprises a directional heat dissipation fan, a heat dissipation cover plate, a heat source radiator and a light source heat dissipation substrate; a heat source radiator is further arranged in the main body support, a gap is reserved between the heat source radiator and the directional heat dissipation fan, and one end of the heat source radiator is fixedly connected with the light source heat dissipation substrate through a heat conduction rod; and the heat dissipation cover plate is provided with an auxiliary heat dissipation device, and the auxiliary heat dissipation device is in adaptive connection with the projector body.
Preferably, the auxiliary heat dissipation device comprises an LCD air duct radiator, an internal circulation heat dissipation fan, a heat dissipation air duct, a heat dissipation rotary approach and an air guide shell, the internal circulation heat dissipation fan is arranged inside the LCD air duct radiator, the internal circulation heat dissipation fan is arranged in the projector body, the upper end of the internal circulation heat dissipation fan is communicated with the heat dissipation air duct through the air guide shell, and one end of the heat dissipation air duct is communicated with the heat dissipation rotary approach.
Preferably, the projector body comprises a projection housing, a light source assembly, a projection display module, a lens assembly, a lithium battery driving module and an image decoding board, the upper end of the main body support is fixedly connected with the lower end of the projection housing, an installation cavity is arranged in the projection housing, the light source assembly and the projection display module are arranged in the installation cavity, an image reflector is obliquely arranged above the projection display module, the reflection end of the influence reflector is matched with the lens assembly, and the outer side of the lens assembly protrudes out of the outer surface of the projection housing; a battery driving module is arranged on one side of the projection shell opposite to the lens component; and an image decoding board card is fixedly arranged at the upper end of the projection shell.
Preferably, the periphery of the light source heat dissipation substrate is embedded on the projection shell, and the inner side of the light source heat dissipation substrate is in adaptive connection with the light source assembly.
Preferably, the lower end of the projection shell is provided with an opening, an internal circulation heat dissipation fan is installed in the opening, an air port of the internal circulation heat dissipation fan is communicated and sealed with the lower portion of the LCD air duct radiator through the opening, the lower end of the LCD air duct radiator is connected with the heat dissipation cover plate, and the upper end of the LCD air duct radiator is attached to the back side of the projection shell.
Preferably, a first boss is arranged on one side of the main body support, a second boss is arranged on one side of the heat dissipation cover plate, and the first boss and the second boss are connected in a matched mode and wrap the outer surface of the heat source radiator together.
Preferably, the projection display module is arranged at the upper end of the heat dissipation air duct.
Preferably, projection shell upper portion is equipped with the slope mesa, there is lithium cell drive module on the slope mesa through mounting fixed mounting.
Preferably, a lens focusing stroke monitoring mechanism is arranged at the lower end of the lens component.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the directional heat dissipation device and the auxiliary heat dissipation device are matched, heat dissipated from different parts of the projector body in the use process is orderly dredged and dissipated, and the heat dissipation of the whole projector body can be realized only by using the directional heat dissipation fan and the internal circulation heat dissipation fan, so that the air inlet surface is concentrated, the air inlet direction is also restrained, the heat dissipation of the projector body is convenient and quick, the number of the heat dissipation fans is effectively reduced compared with the prior art, the production cost of the projector is reduced, and the space volume of the projector is reduced;
(2) the invention carries out blowing action after the heat of the heat source radiator is absorbed by the directional heat dissipation fan through arranging the directional heat dissipation device at the bottom, the heat of the heat source radiator is dissipated and is taken away by flowing, the bottom of the internal circulation heat dissipation fan is dissipated by the heat source radiator, the internal circulation heat dissipation fan blows to the heat dissipation air duct and can also effectively dissipate heat of the light source component, the air in the heat dissipation air duct dissipates the heat of the upper part of the installation cavity through the heat dissipation rotary guide duct, namely dissipates the heat of the inner sides of the projection display module and the lens component, the air fluidity in the installation cavity is higher, the heat dissipation efficiency is higher, the projector body which needs to dissipate heat is favorably better dissipated, the inner part of the projector body is integrally sealed, the external dust is prevented from falling into the projector body to influence the use effect, the projector runs stably in the use process, and the elements in the projector body are more favorably protected, the service life of the projector is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic structural diagram of a directional heat sink of the present invention;
fig. 5 is a rear view of fig. 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 5, a directional heat dissipation device for an LCD projector includes a main body bracket 1, a directional heat dissipation device 2, a directional heat dissipation fan 201, a heat dissipation cover plate 202, a heat source radiator 203, a light source heat dissipation substrate 204, a heat conduction rod 205, an auxiliary heat dissipation device 3, an LCD air duct radiator 301, an internal circulation heat dissipation fan 302, a heat dissipation air duct 303, a heat dissipation rotary approach 304, an air guide casing 305, a projector body 4, a projection housing 401, a light source assembly 402, a projection display module 403, a lens assembly 404, a lithium battery driving module 405, an image decoding board card 406, an image mirror 407, a first boss 5, a second boss 6, a fixing member 7, and a lens focusing stroke monitoring mechanism 8.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The directional heat dissipation device 2 is fixedly mounted on the main body support 1, the directional heat dissipation device 2 comprises a directional heat dissipation fan 201, a heat dissipation cover plate 202, a heat source radiator 203 and a light source heat dissipation substrate 204, the directional heat dissipation fan 201 is mounted in the main body support 1 in a clearance mode, and the heat dissipation cover plate 202 is fixedly mounted at the upper end of the directional heat dissipation fan 201; a heat source radiator 203 is further arranged in the main body support 1, a gap is reserved between the heat source radiator 203 and the directional cooling fan 201, and one end of the heat source radiator 203 is fixedly connected with a light source cooling substrate 204 through a heat conducting rod 205; the auxiliary heat dissipation device 3 is disposed on the heat dissipation cover plate 202, and the auxiliary heat dissipation device 3 is connected to the projector body 4 in an adaptive manner. Specifically, the auxiliary heat dissipation device 3 includes an LCD air duct heat sink 301, an internal circulation heat dissipation fan 302, a heat dissipation air duct 303, a heat dissipation rotary approach 304 and an air guide shell 305, the internal circulation heat dissipation fan 302 is disposed inside the LCD air duct heat sink 301, the internal circulation heat dissipation fan 302 is disposed inside the projector body 4, and the upper end of the internal circulation heat dissipation fan 302 is communicated with the heat dissipation air duct 303 through the air guide shell 305; specifically, a heat dissipation air duct 303 is further disposed in the projector body 4, and one end of the heat dissipation air duct 303 is communicated with a heat dissipation rotary approach 304, so as to facilitate quick heat dissipation of the inner circulation heat dissipation fan 302 to the inside of the projector body. In this embodiment, an opening is formed in the lower end of the projection housing 401, the internal circulation heat dissipation fan 302 is installed in the opening, an air port of the internal circulation heat dissipation fan 302 is communicated and sealed with the lower portion of the LCD air duct heat sink 301 through the opening, the lower end of the LCD air duct heat sink 301 is connected with the heat dissipation cover plate 202, and the upper end of the LCD air duct heat sink 301 is attached to the back side of the projection housing 401, so that the projector body 4 can be circularly cooled.
A first boss 5 is arranged on one side of the main body support 1, a second boss 6 is arranged on one side of the heat dissipation cover plate 202, and the first boss 5 and the second boss 6 are connected in a matched mode and cover the outer surface of the heat source radiator 203 together.
The projector body 4 comprises a projection shell 401, a light source assembly 402, a projection display module 403, a lens assembly 404, a lithium battery driving module 405 and an image decoding board card 406, the upper end of a main body support 1 is fixedly connected with the lower end of the projection shell 401, an installation cavity is arranged in the projection shell 401, the light source assembly 402 and the projection display module 403 are arranged in the installation cavity, an image reflector 407 is obliquely arranged above the projection display module 403, the reflecting end of the image reflector is matched with the lens assembly 404, and the outer side of the lens assembly 404 protrudes out of the outer surface of the projection shell 401; a battery driving module is arranged on one side of the projection shell 401 opposite to the lens component 404; an image decoding board card 406 is fixedly arranged at the upper end of the projection housing 401. The periphery of the light source heat dissipation substrate 204 is embedded in the projection housing 401, and the inner side of the light source heat dissipation substrate 204 is connected to the light source module 402. The projection display module 403 is disposed at the upper end of the heat dissipation air duct 303 for facilitating heat dissipation.
The lower end of the lens assembly 404 is provided with a lens focusing stroke monitoring mechanism 8, which facilitates the lens assembly 404 to perform accurate focusing operation within the projection range.
The working principle of the invention is as follows: the directional heat dissipation fan 201 blows the heat of the heat source radiator 203 and then performs blowing action to dissipate the heat of the heat source radiator 203, the heat of the heat source radiator 203 is taken away in a flowing manner, the bottom of the internal circulation heat dissipation fan 302 is dissipated by the heat source radiator 203, the internal circulation heat dissipation fan 302 blows to the heat dissipation air duct 303 and can also effectively dissipate the heat of the light source assembly 402, the air in the heat dissipation air duct 403 dissipates the heat of the upper part of the installation cavity through the heat dissipation rotary guide duct 304, namely, the inner sides of the projection display module 403 and the lens assembly 404 are dissipated, the air fluidity in the installation cavity is higher, the heat dissipation efficiency is higher, the projector body 4 needing heat dissipation is favorably and better dissipated, the interior of the projector body 4 is integrally sealed, external dust is prevented from falling into the projector body 4 to influence the use effect, the projector runs stably in the use process, and the protection of elements in the projector body 4 is more favorable, the service life of the projector is prolonged.
According to the invention, through the arrangement of the directional heat dissipation device 2 and the auxiliary heat dissipation device 3, heat dissipated from different parts of the projector body 4 in the use process is orderly dissipated and dissipated, and the whole projector body 4 can be dissipated only by using the directional heat dissipation fan 201 and the internal circulation heat dissipation fan 302, so that the air inlet surface is concentrated, the air inlet direction is also restricted, the heat dissipation of the projector body 4 is faster, the number of the heat dissipation fans is effectively reduced compared with the prior art, the production cost of the projector is reduced, and the space volume of the projector body 4 is reduced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (9)
1. The directional heat dissipation device of the LCD projector is characterized in that: the projector comprises a main body support (1), a directional heat dissipation device (2), an auxiliary heat dissipation device (3) and a projector body (4), wherein the directional heat dissipation device (2) is fixedly installed on the main body support (1), the directional heat dissipation device (2) comprises a directional heat dissipation fan (201), a heat dissipation cover plate (202), a heat source radiator (203) and a light source heat dissipation substrate (204), the directional heat dissipation fan (201) is installed in the main body support (1) in a clearance mode, and the heat dissipation cover plate (202) is fixedly arranged at the upper end of the directional heat dissipation fan (201); a heat source radiator (203) is further arranged in the main body support (1), a gap is reserved between the heat source radiator (203) and the directional heat dissipation fan (201), and one end of the heat source radiator (203) is fixedly connected with a light source heat dissipation substrate (204) through a heat conduction rod (205); and an auxiliary heat dissipation device (3) is arranged on the heat dissipation cover plate (202), and the auxiliary heat dissipation device (3) is in adaptive connection with the projector body (4).
2. The LCD projector directional heat sink of claim 1, wherein: the auxiliary heat dissipation device (3) comprises an LCD air duct radiator (301), an internal circulation heat dissipation fan (302), a heat dissipation air duct (303), a heat dissipation rotary approach (304) and an air guide shell (305), wherein the internal circulation heat dissipation fan (302) is arranged on the inner side of the LCD air duct radiator (301), the internal circulation heat dissipation fan (302) is arranged in the projector body (4), the upper end of the internal circulation heat dissipation fan (302) is communicated with the heat dissipation air duct (303) through the air guide shell (305), and one end of the heat dissipation air duct (303) is communicated with the heat dissipation rotary approach (304).
3. The LCD projector directional heat sink of claim 2, wherein: the projector body (4) comprises a projection shell (401), a light source assembly (402), a projection display module (403), a lens assembly (404), a lithium battery driving module (405) and an image decoding board card (406), the upper end of the main body support (1) is fixedly connected with the lower end of the projection shell (401), an installation cavity is arranged in the projection shell (401), the light source assembly (402) and the projection display module (403) are arranged in the installation cavity, an image reflector (407) is obliquely arranged above the projection display module (403), the reflection end of the influence reflector is matched with the lens assembly (404), and the outer side of the lens assembly (404) protrudes out of the outer surface of the projection shell (401); a battery driving module is arranged on one side of the projection shell (401) opposite to the lens component (404); an image decoding board card (406) is fixedly arranged at the upper end of the projection shell (401).
4. A directional heat sink for LCD projectors according to claim 3, wherein: the periphery of the light source heat dissipation substrate (204) is embedded on the projection shell (401), and the inner side of the light source heat dissipation substrate (204) is in adaptive connection with the light source assembly (402).
5. An LCD projector directional heat sink according to claim 3 or 4, wherein: the lower end of the projection shell (401) is provided with an opening, an internal circulation heat dissipation fan (302) is installed in the opening, an air port of the internal circulation heat dissipation fan (302) is communicated and sealed with the lower portion of the LCD air duct radiator (301), the lower end of the LCD air duct radiator (301) is connected with the heat dissipation cover plate (202), and the upper end of the LCD air duct radiator (301) is attached to the back side of the projection shell (401).
6. An LCD projector directional heat sink according to claim 1 or 2, wherein: the heat source radiator is characterized in that a first boss (5) is arranged on one side of the main body support (1), a second boss (6) is arranged on one side of the heat dissipation cover plate (202), and the first boss (5) and the second boss (6) are connected in an adaptive mode and wrap the outer surface of the heat source radiator (203) together.
7. A directional heat sink for LCD projectors according to claim 3, wherein: the projection display module (403) is arranged at the upper end of the heat dissipation air duct (303).
8. A directional heat sink for LCD projectors according to claim 3, wherein: projection shell (401) upper portion is equipped with the slope mesa, there is lithium cell drive module (405) through mounting (7) fixed mounting on the slope mesa.
9. An LCD projector directional heat sink according to claim 3 or 4, wherein: and a lens focusing stroke monitoring mechanism (8) is arranged at the lower end of the lens component (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247545.7A CN114527621A (en) | 2022-03-14 | 2022-03-14 | Directional heat abstractor of LCD projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247545.7A CN114527621A (en) | 2022-03-14 | 2022-03-14 | Directional heat abstractor of LCD projecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114527621A true CN114527621A (en) | 2022-05-24 |
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ID=81626131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210247545.7A Pending CN114527621A (en) | 2022-03-14 | 2022-03-14 | Directional heat abstractor of LCD projecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114527621A (en) |
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2022
- 2022-03-14 CN CN202210247545.7A patent/CN114527621A/en active Pending
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