CN219302860U - Novel LCD projector convenient to heat dissipation - Google Patents
Novel LCD projector convenient to heat dissipation Download PDFInfo
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- CN219302860U CN219302860U CN202320235907.0U CN202320235907U CN219302860U CN 219302860 U CN219302860 U CN 219302860U CN 202320235907 U CN202320235907 U CN 202320235907U CN 219302860 U CN219302860 U CN 219302860U
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- radiator
- cold
- face
- hot
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 40
- 239000004065 semiconductor Substances 0.000 claims abstract description 26
- 238000005057 refrigeration Methods 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 36
- 238000009423 ventilation Methods 0.000 claims description 21
- 239000011521 glass Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The application provides a novel LCD projector convenient to heat dissipation, include: an inner circulation air duct is enclosed in the shell; an optical device comprising an LCD screen; the internal circulation fan is arranged in the second cavity; the precooling radiator comprises a first cold-face radiator and a first hot-face radiator; the semiconductor refrigeration radiator comprises a second cold-face radiator, a second hot-face radiator and a semiconductor refrigeration sheet. The embodiment of the application the novel LCD projector convenient to radiate heat is provided with the precooling radiator, the precooling radiator can play the effect of preliminary cooling, when the internal circulation temperature is lower, then need not to open the semiconductor refrigeration piece, can save partial energy consumption from this, and when the internal circulation temperature is higher, then can open the semiconductor refrigeration piece for the semiconductor refrigeration radiator temperature effectively reduces, guarantees heat dissipation power. Therefore, the LCD projector does not need to be directly powered on to the maximum refrigerating power, and the heat dissipation power consumption of the LCD projector can be effectively reduced.
Description
Technical Field
The application relates to the technical field of LCD projection, in particular to a novel LCD projector convenient for heat dissipation.
Background
The LCD screen of the medium-sized LCD projector has high working temperature because the LCD light transmittance of the core component of the LCD projector is not high. In order to ensure the normal operation of the LCD projector, the existing LCD projector adopts a semiconductor refrigerating sheet refrigerating mode to reduce the temperature of the internal circulation of the projector, thereby achieving the effect of normal use.
However, the efficiency of the refrigerating sheets is low, a good heat dissipation effect can be achieved by the refrigerating sheets with high power, and the refrigerating sheets can always operate as long as the projector is started, so that the energy consumption of the projector is greatly improved.
Disclosure of Invention
The present application is directed to a novel LCD projector with heat dissipation function, so as to solve the drawbacks and shortcomings of the prior art.
The application discloses novel LCD projector convenient to heat dissipation includes: the device comprises a shell, wherein a first cavity and a second cavity which are arranged up and down are formed in the shell, a first ventilation opening and a second ventilation opening which are communicated with the first cavity and the second cavity are also formed in the shell, the first ventilation opening and the second ventilation opening are positioned on two opposite sides of the first cavity, and an internal circulation air duct is defined by the first cavity, the first ventilation opening, the second cavity and the second ventilation opening together;
an optical device disposed in the first cavity, the optical device comprising an LCD screen;
the internal circulation fan is arranged in the second cavity;
the precooling radiator comprises a first cold-face radiator and a first hot-face radiator, the first cold-face radiator is arranged in the second cavity, the first hot-face radiator is arranged outside the shell, and the first cold-face radiator and the first hot-face radiator are connected to conduct heat;
the semiconductor refrigeration radiator comprises a second cold-face radiator, a second hot-face radiator and a semiconductor refrigeration sheet, wherein the second cold-face radiator is arranged in the second cavity, the second hot-face radiator is arranged outside the shell, and the second cold-face radiator and the second hot-face radiator are connected through the semiconductor refrigeration sheet to conduct heat.
Compared with the prior art, the novel LCD projector convenient to heat dissipation of this application embodiment owing to be provided with the precooling radiator, precooling radiator can play preliminary cooling's effect, when the inner loop temperature is lower, then need not to open the semiconductor refrigeration piece, can save partial energy consumption from this, and when the inner loop temperature is higher, then can open the semiconductor refrigeration piece for semiconductor refrigeration radiator temperature effectively reduces, guarantees heat dissipation power. Therefore, the LCD projector does not need to be directly powered on to the maximum refrigerating power, and the heat dissipation power consumption of the LCD projector can be effectively reduced.
In a preferred or alternative embodiment, the first cold-face radiator and the second cold-face radiator are sequentially arranged along the wind flow direction of the internal circulation wind channel.
In a preferred or alternative embodiment, the air outlet of the internal circulation fan is opposite to the first ventilation opening, and the air inlet of the internal circulation fan is opposite to the second cold surface radiator.
In a preferred or alternative embodiment, the novel LCD projector capable of facilitating heat dissipation further includes an external circulation heat dissipation fan disposed on the housing for dissipating heat from the first and second hot-side heat sinks.
In a preferred or alternative embodiment, the precooling radiator further comprises a heat conducting fin, and the first cold-face radiator is connected with the first hot-face radiator through the heat conducting fin.
In a preferred or alternative embodiment, the first cold side heat sink includes a plurality of first cold side heat sinks arranged at intervals, and the first hot side heat sink includes a plurality of first hot side heat sinks arranged at intervals.
In a preferred or alternative embodiment, the second cold-surface radiator includes a plurality of second cold-surface radiating fins arranged at intervals, the second hot-surface radiator includes a plurality of second hot-surface radiating fins arranged at intervals, and an air inlet of the internal circulation fan faces to gaps among a plurality of second cold-surface radiating fins.
In a preferred or alternative embodiment, the optical device further includes a first phenanthrene mirror, a heat-insulating glass, a second phenanthrene mirror, and a reflective mirror, where the first phenanthrene mirror, the heat-insulating glass, the LCD screen, the second phenanthrene mirror, and the reflective mirror are sequentially disposed along a direction from the first vent to the second vent.
In a preferred or alternative embodiment, the internal circulation fan is a vortex fan.
In a preferred or alternative embodiment, the external circulation radiator fan is an axial flow fan.
For a better understanding and implementation, the present application is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic diagram of a novel LCD projector with heat dissipation convenience in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a semiconductor refrigeration radiator according to an embodiment of the present application;
reference numerals:
1. a housing; 11. a first cavity; 12. a second cavity; 13. a first vent; 14. a second vent; 21. a first phenanthrene mirror; 22. a heat insulating glass; 23. an LCD screen; 24. a second phenanthrene mirror; 25. a reflective mirror; 3. an internal circulation fan; 41. a first cold face heat sink; 42. a first hot-side radiator; 43. a heat conductive sheet; 51. a second cold face radiator; 511. a second cold-face heat sink; 52. a second hot-side radiator; 521. a second hot-side heat sink; 53. a semiconductor refrigeration sheet; 6. an external circulation cooling fan.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1 to 2, an embodiment of the present application provides a novel LCD projector with heat dissipation convenience, including: the device comprises a shell 1, optical devices, an internal circulation fan 3, a precooling radiator and a semiconductor refrigeration radiator.
The inside first cavity 11 and the second cavity 12 that arranges from top to bottom that form of casing 1, still be provided with in the casing 1 will first vent 13 and the second vent 14 that first cavity 11 and second cavity 12 are linked together, first vent 13 and second vent 14 are located the relative both sides of first cavity 11, first vent 13, second cavity 12 and second vent 14 enclose an inner loop wind channel jointly.
The optics are arranged in the first cavity 11, the optics comprising an LCD screen 23. The internal circulation fan 3 is disposed in the second cavity 12, and air in the internal circulation air duct may circulate under the driving of the internal circulation fan 3, in this embodiment, the air in the internal circulation air duct flows from the first cavity 11 to the second cavity 12 through the second ventilation opening 14, and then flows from the first ventilation opening 13 back to the first cavity 11, so as to perform circulation flow.
The precooling radiator comprises a first cold-face radiator 41 and a first hot-face radiator 42, the first cold-face radiator 41 is arranged in the second cavity 12, the first hot-face radiator 42 is arranged outside the shell 1, and the first cold-face radiator 41 and the first hot-face radiator 42 are connected to conduct heat. The semiconductor refrigeration radiator comprises a second cold-face radiator 51, a second hot-face radiator 52 and a semiconductor refrigeration sheet 53, the second cold-face radiator 51 is arranged in the second cavity 12, the second hot-face radiator 52 is arranged outside the shell 1, and the second cold-face radiator 51 and the second hot-face radiator 52 are connected through the semiconductor refrigeration sheet 53 to conduct heat.
Because the heat generated by the LCD screen 23 is high, the temperature in the first cavity 11 is high, and at this time, the internal circulation fan 3 is started, so that the hot air in the first cavity 11 flows into the second cavity 12 through the second air vent 14, flows through the first cold surface radiator 41 and the second cold surface radiator 51 to perform heat exchange, and is cooled to form cold air, and the cold air flows back into the first cavity 11 through the first air vent 13 and flows through the LCD screen 23 to cool the first cavity, so that an air-cooled internal circulation is formed, and the heat generated by the LCD screen 23 can be rapidly taken away. Since the first cold-surface heat sink 41 and the second cold-surface heat sink 51 are heated during heat exchange, the first hot-surface heat sink 42 and the second hot-surface heat sink 52 connected to the outside of the casing 1 are required to absorb heat of the first cold-surface heat sink 41 and the second cold-surface heat sink 51, respectively, to cool. The first hot-side radiator 42 cools through the external air, and the second hot-side radiator 52 cools through the external air and the semiconductor refrigerating sheet 53, so that the first cold-side radiator 41 and the second cold-side radiator 51 are in a low-temperature state, thereby effectively realizing the rapid heat dissipation of the LCD screen 23, effectively ensuring the normal operation of the LCD screen 23, and prolonging the service life of the LCD screen 23.
The embodiment of the application the novel LCD projector convenient to radiate heat is provided with the precooling radiator, the precooling radiator can play the effect of preliminary cooling, when the internal circulation temperature is lower, then need not to open the semiconductor refrigeration piece 53, can save partial energy consumption from this, and when the internal circulation temperature is higher, then can open the semiconductor refrigeration piece 53 for the semiconductor refrigeration radiator temperature effectively reduces, guarantees heat dissipation power. Therefore, the LCD projector does not need to be directly powered on to the maximum refrigerating power, and the heat dissipation power consumption of the LCD projector can be effectively reduced.
Preferably, in this embodiment, the first cold-face radiator 41 and the second cold-face radiator 51 are sequentially arranged along the air flow direction of the internal circulation air duct, so that the air in the internal circulation air duct is cooled by the first cold-face radiator 41 and then enters the second cold-face radiator 51 for cooling, which not only improves the refrigeration efficiency, but also reduces the power requirement of the semiconductor refrigeration sheet 53.
In this embodiment, the internal circulation fan 3 is an eddy fan, an air outlet of the internal circulation fan 3 is opposite to the first ventilation opening 13, and an air inlet of the internal circulation fan 3 is opposite to the second cold surface radiator 51. Therefore, the air suction efficiency can be improved, the air flow of the internal circulation air duct is facilitated, the cooling efficiency is improved, and the heat dissipation of the LCD screen 23 is facilitated. The PWN speed regulating function can be added to the inner circulation fan 3, and a temperature sensor is arranged in the first cavity 11, so that the inner circulation fan 3 can intelligently regulate speed at different temperatures, and the heat dissipation steady state of the first cavity 11 is maintained.
In order to improve the external circulation heat dissipation efficiency of the LCD projector, preferably, the novel LCD projector that facilitates heat dissipation according to the present embodiment further includes an external circulation heat dissipation fan 6, where the external circulation heat dissipation fan 6 is disposed on the housing 1, and is configured to dissipate heat from the first hot-side heat sink 42 and the second hot-side heat sink 52. The external circulation heat radiation fan 6 is preferably an axial flow fan.
Preferably, the precooling radiator of the present embodiment further includes a heat conducting fin 43, and the first cold-face radiator 41 is connected with the first hot-face radiator 42 through the heat conducting fin 43, so as to improve heat conduction efficiency between the first cold-face radiator 41 and the first hot-face radiator 42, and facilitate heat dissipation. Specifically, the first cold-surface radiator 41 in this embodiment includes a plurality of first cold-surface radiating fins disposed at intervals, and the first hot-surface radiator 42 includes a plurality of first hot-surface radiating fins disposed at intervals, thereby facilitating improvement of heat exchange area and greatly improving heat dissipation effect.
Preferably, the second cold-surface heat sink 51 of the present embodiment includes a plurality of second cold-surface heat sinks 511 disposed at intervals, and the second hot-surface heat sink 52 includes a plurality of second hot-surface heat sinks 521 disposed at intervals, thereby facilitating the improvement of the heat exchange area and greatly improving the heat dissipation effect. The air inlet of the internal circulation fan 3 faces the gaps between the second cooling fins 511, so as to improve the heat dissipation efficiency and increase the air flow speed.
Specifically, the optical device of the present embodiment further includes a first phenanthrene mirror 21, a heat-insulating glass 22, a second phenanthrene mirror 24, and a reflective mirror 25, where the first phenanthrene mirror 21, the heat-insulating glass 22, the LCD screen 23, the second phenanthrene mirror 24, and the reflective mirror 25 are sequentially disposed along a direction from the first ventilation opening 13 to the second ventilation opening 14. The first phenanthrene mirror 21, the heat-insulating glass 22, the second phenanthrene mirror 24 and the reflective mirror 25 also have certain heat, and the first phenanthrene mirror, the heat-insulating glass, the second phenanthrene mirror and the reflective mirror 25 are placed in the first cavity 11 so as to be beneficial to cooling together.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (10)
1. A novel LCD projector facilitating heat dissipation, comprising:
the device comprises a shell, wherein a first cavity and a second cavity which are arranged up and down are formed in the shell, a first ventilation opening and a second ventilation opening which are communicated with the first cavity and the second cavity are also formed in the shell, the first ventilation opening and the second ventilation opening are positioned on two opposite sides of the first cavity, and an internal circulation air duct is defined by the first cavity, the first ventilation opening, the second cavity and the second ventilation opening together;
an optical device disposed in the first cavity, the optical device comprising an LCD screen;
the internal circulation fan is arranged in the second cavity;
the precooling radiator comprises a first cold-face radiator and a first hot-face radiator, the first cold-face radiator is arranged in the second cavity, the first hot-face radiator is arranged outside the shell, and the first cold-face radiator and the first hot-face radiator are connected to conduct heat;
the semiconductor refrigeration radiator comprises a second cold-face radiator, a second hot-face radiator and a semiconductor refrigeration sheet, wherein the second cold-face radiator is arranged in the second cavity, the second hot-face radiator is arranged outside the shell, and the second cold-face radiator and the second hot-face radiator are connected through the semiconductor refrigeration sheet to conduct heat.
2. The novel LCD projector facilitating heat dissipation according to claim 1, wherein:
the first cold face radiator and the second cold face radiator are sequentially arranged along the air flow direction of the internal circulation air duct.
3. The novel LCD projector facilitating heat dissipation according to claim 2, wherein:
the air outlet of the internal circulation fan is opposite to the first ventilation opening, and the air inlet of the internal circulation fan is opposite to the second cold face radiator.
4. A novel LCD projector facilitating heat dissipation according to claim 3, wherein:
the heat dissipation device further comprises an outer circulation heat dissipation fan, wherein the outer circulation heat dissipation fan is arranged on the shell and used for dissipating heat of the first hot-face radiator and the second hot-face radiator.
5. The novel LCD projector facilitating heat dissipation according to claim 1, wherein:
the precooling radiator further comprises a heat conducting fin, and the first cold face radiator is connected with the first hot face radiator through the heat conducting fin.
6. The novel LCD projector facilitating heat dissipation according to claim 1, wherein:
the first cold-face radiator comprises a plurality of first cold-face radiating fins arranged at intervals, and the first hot-face radiator comprises a plurality of first hot-face radiating fins arranged at intervals.
7. A novel LCD projector facilitating heat dissipation according to claim 3, wherein:
the second cold surface radiator comprises a plurality of second cold surface radiating fins which are arranged at intervals, the second hot surface radiator comprises a plurality of second hot surface radiating fins which are arranged at intervals, and an air inlet of the internal circulation fan faces to gaps among the plurality of second cold surface radiating fins.
8. The novel LCD projector according to any one of claims 1-7, wherein:
the optical device further comprises a first phenanthrene mirror, heat-insulating glass, a second phenanthrene mirror and a reflecting mirror, wherein the first phenanthrene mirror, the heat-insulating glass, the LCD screen, the second phenanthrene mirror and the reflecting mirror are sequentially arranged along the direction from the first ventilation opening to the second ventilation opening.
9. The novel LCD projector according to any one of claims 1-7, wherein:
the internal circulation fan is an eddy fan.
10. The novel LCD projector of claim 4, wherein the heat dissipation facilitating means comprises:
the external circulation cooling fan is an axial flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235907.0U CN219302860U (en) | 2023-02-15 | 2023-02-15 | Novel LCD projector convenient to heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235907.0U CN219302860U (en) | 2023-02-15 | 2023-02-15 | Novel LCD projector convenient to heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219302860U true CN219302860U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320235907.0U Active CN219302860U (en) | 2023-02-15 | 2023-02-15 | Novel LCD projector convenient to heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219302860U (en) |
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- 2023-02-15 CN CN202320235907.0U patent/CN219302860U/en active Active
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