CN220040947U - Double-aluminum sheet full-sealed single-sheet type LCD projection optical machine - Google Patents
Double-aluminum sheet full-sealed single-sheet type LCD projection optical machine Download PDFInfo
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- CN220040947U CN220040947U CN202321554334.4U CN202321554334U CN220040947U CN 220040947 U CN220040947 U CN 220040947U CN 202321554334 U CN202321554334 U CN 202321554334U CN 220040947 U CN220040947 U CN 220040947U
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- Prior art keywords
- heat
- lcd
- turbofan
- led lamp
- liquid crystal
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 title abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 74
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005057 refrigeration Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Projection Apparatus (AREA)
Abstract
The utility model relates to the field of projectors, in particular to a double-aluminum sheet full-sealed single-sheet type LCD projection optical machine, which comprises a shell, an LCD (liquid crystal display) screen, an LED lamp panel, a turbofan, a cold-heat exchanger, an LED radiator and an axial fan, wherein the LCD screen and the LED lamp panel are arranged in the shell, the turbofan is arranged at the bottom of the shell, the LED radiator is an aluminum sheet radiator, the LED radiator is provided with a heat conducting plate, the heat conducting plate is arranged at the outer side of the shell and is directly contacted with the LED lamp panel, and the axial fan is arranged at the outer side of the shell and is connected with a heat release part of the cold-heat exchanger and the LED radiator. According to the utility model, the two sides of the LCD are directly radiated by the turbofan, and the LED lamp panel is directly radiated by the LED radiator, so that the radiating effect is improved.
Description
Technical Field
The utility model relates to the field of projectors, in particular to a double-aluminum sheet full-sealing single-sheet type LCD projection optical machine.
Background
The transmissivity of the LCD liquid crystal screen is only 5% -7%, and the rest 93% -97% of heat is accumulated on the liquid crystal screen. The LCD screen is sensitive to temperature, and the temperature of the LCD screen directly influences the brightness of the projection optical machine
At present, the heat dissipation structure of the full-closed projection optical machine in the industry is mainly two, and the other is a turbofan and TEC refrigeration structure, wherein the TEC refrigeration structure can be effectively cooled through a semiconductor refrigeration sheet, but the cost is higher and the problem of lower uniformity cannot be effectively solved; one is turbofan + cold heat exchange aluminum sheet structure, and this kind of structure is limited by cold heat exchange aluminum sheet's heat conduction efficiency, and ray apparatus luminance can only satisfy the heat dissipation of about 200lm, and luminance is lower to influence user experience. In the prior art, wind blown out by the turbofan is easy to be mixed in the totally enclosed type shell, so that the wind loss cannot intensively dissipate heat of the LCD liquid crystal screen, and the heat dissipation effect is poor. The LED lamp panel is used as a light source of the projector, and needs to ensure heat dissipation and reduce temperature due to large heat productivity, so as to ensure the projection effect.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a double-aluminum sheet full-sealed single-sheet type LCD projection optical machine which directly dissipates heat on two sides of an LCD (liquid crystal display) through a turbofan, directly dissipates heat on an LED lamp panel through an LED radiator and improves the heat dissipation effect.
The utility model adopts the following technical scheme:
the utility model provides a full sealed monolithic formula LCD projection ray apparatus of two aluminum sheets, includes casing, LCD and LED lamp plate set up in the casing still include turbofan, heat exchanger, LED radiator and axial fan, turbofan sets up the bottom at the casing, heat exchanger includes heat absorption portion and exothermic portion, the heat absorption portion embedding the casing is inboard and the heat absorption portion is located turbofan's air outlet one side, exothermic portion is located the casing outside, the LED LCD is located the top of heat absorption portion, the LED lamp plate set up with LCD parallel interval arrangement just the LED lamp plate is located the LCD is kept away from one side of turbofan, the LED radiator is an aluminum sheet radiator, the LED radiator is provided with a heat conducting plate, the heat conducting plate is arranged outside a shell and is directly contacted with the LED lamp panel, a sealed space is formed by the shell, a cold heat exchanger and the LED lamp panel, an axial flow fan is arranged outside the shell and is connected with a heat release part of the cold heat exchanger and the LED radiator, a first air channel is formed on two sides of the LCD screen, a second air channel is formed between the LCD screen and the top surface of the shell, a third air channel is formed above the turbine fan, and a complete heat dissipation channel is formed by the first air channel, the second air channel and the third air channel.
Further, the LED lamp panel comprises a front phenanthrene mirror and a rear phenanthrene mirror, the front phenanthrene mirror and the rear phenanthrene mirror are respectively arranged on two sides of the LCD, the front phenanthrene mirror and the rear phenanthrene mirror are arranged at intervals parallel to the LCD, the rear phenanthrene mirror is arranged between the LED lamp panel and the LCD, and the interval between the front phenanthrene mirror and the rear phenanthrene mirror and the LCD forms a first air duct.
Further, the front phenanthrene mirror is located at one side of the LCD liquid crystal screen, close to the turbofan, so that the front phenanthrene mirror and the shell form the third air duct at one side of the turbofan.
Further, the bottom and the top of the heat absorbing part are provided with arc transition surfaces, one end of the heat absorbing part is connected with an air outlet of the turbofan, and the other end of the heat absorbing part is opposite to the first air duct.
Further, the heat absorbing part is provided with a plurality of heat absorbing fins which are vertically arranged, and a plurality of heat absorbing fins are arranged at intervals in parallel.
Further, the heat release part is provided with a plurality of heat release fins which are horizontally arranged and a plurality of heat release fins are arranged at intervals in parallel.
Further, the LED radiator comprises a heat conducting plate and a heat radiating part, wherein the top of the heat conducting plate is directly contacted with the LED lamp panel, the heat radiating part is arranged at the bottom of the heat conducting plate and faces the heat radiating part, and the heat radiating part are covered by the axial flow fan.
Further, the heat dissipation part comprises a plurality of heat dissipation fins, wherein the heat dissipation fins are horizontally arranged and are arranged at intervals in parallel.
Further, the device also comprises a lens, wherein the lens is arranged in the shell and is positioned above the turbofan.
As can be seen from the above description of the present utility model, compared with the prior art, the present utility model has the following beneficial effects:
the first air duct, the second air duct and the third air duct form a complete heat dissipation channel, the air is blown out from the turbofan and directly dissipates heat of the LCD liquid crystal screen through the first air ducts on two sides of the LCD liquid crystal screen, so that the heat dissipation effect is ensured, the brightness of the projection optical machine is improved, the height of only one turbofan is arranged at the bottom of the shell, the structure is compact, and the size of the whole optical machine is reduced; the LED radiator is an aluminum sheet radiator, and radiates heat to the LED lamp panel in a mode of directly contacting the LED lamp panel, so that the radiating effect of the LED lamp panel is improved.
And second, forming first air channels on two sides of the LCD through front phenanthrene mirrors and rear phenanthrene mirrors on two sides of the LCD, and directly radiating the LCD by the air on two sides of the LCD through the first air channels, so that the radiating effect is improved.
Thirdly, the wind is guided to flow to the first air duct through the arc-shaped transition surface on the heat absorbing part, so that the wind is ensured to smoothly flow in the shell.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of a specific embodiment of the present utility model;
FIG. 2 is a schematic overall structure of an embodiment of the present utility model;
FIG. 3 is a side view of the overall structure of an embodiment of the present utility model;
fig. 4 is a schematic view of a structure of a heat and cold exchanger according to an embodiment of the present utility model.
In the figure: 10. the LED lamp panel comprises a shell, an LCD (liquid crystal display) screen, a front phenanthrene mirror, a rear phenanthrene mirror, a lens, a light-emitting diode (LED) lamp panel, a turbine fan, a cold-heat exchanger, 170, a heat absorbing part, 171, an heat releasing part, 18, an axial flow fan, 19, an LED radiator, 190, a heat conducting plate, 191, a heat radiating part, 20, a first air duct, 21, a second air duct and 22, and a third air duct.
Detailed Description
The utility model is further described below by means of specific embodiments.
Referring to fig. 1 to 4, the fully-enclosed single-channel direct-projection single-chip LCD projection optical machine of the present utility model includes a housing 10, an LCD liquid crystal screen 11, a front phenanthrene mirror 12, a rear phenanthrene mirror 13, a lens 14, an LED lamp panel 15, a turbo fan 16, a heat exchanger 17, an axial fan 18, and an LED radiator 19, wherein the LCD liquid crystal screen 11, the front phenanthrene mirror 12, the rear phenanthrene mirror 13, the lens 14, the LED lamp panel 15, the turbo fan 16, the heat exchanger 17, and the LED radiator 19 are disposed outside the housing 10, and the LED radiator 19 is in direct contact with the LED lamp panel 15, the axial fan 18 is disposed outside the housing 10 and connects the heat exchanger 17 and the LED radiator 19, and the housing 10, the heat exchanger 17, and the LED radiator 19 enclose a closed space.
The front phenanthrene mirror 12 and the rear phenanthrene mirror 13 are arranged on two sides of the LCD liquid crystal screen 11, and the front phenanthrene mirror 12, the rear phenanthrene mirror 13 and the LCD liquid crystal screen 11 are arranged at intervals in parallel; the lens 14 is arranged at one side of the shell 10 close to the front phenanthrene mirror 12; the LED lamp panel 15 is arranged at one side, close to the rear phenanthrene mirror 13, in the shell 10, and the LED lamp panel 15 and the rear phenanthrene mirror 13 are arranged in parallel at intervals; the turbofan 16 is arranged at the bottom of the housing 10, and the turbofan 16 is positioned below the lens 14; the cold and heat exchanger 17 is disposed on a side of the turbo fan 16 close to the LCD panel 11.
The heat and cold exchanger 17 has a heat absorbing part 170 and a heat releasing part 171, the heat absorbing part 170 is located in the casing 10, the heat releasing part 171 is located outside the casing 10, the axial flow fan 20 is disposed on the heat releasing part 171, the heat absorbing part 170 has a plurality of heat absorbing fins vertically arranged and a plurality of heat absorbing fins are arranged at intervals in parallel, and the top and bottom of the heat absorbing part are formed with arc transition surfaces. The heat radiating portion 171 has a plurality of heat radiating fins arranged horizontally and a plurality of the heat radiating fins are arranged in parallel at intervals.
The first air duct 20 is formed by the intervals among the front phenanthrene mirror 12, the rear phenanthrene mirror 13 and the LCD liquid crystal screen 11; a second air duct 21 is formed between the LCD panel 11 and the top of the housing 10; a third air duct 22 is formed between the front phenanthrene mirror 12 and the housing 10, the third air duct 22 is located above the turbofan 16, and the first air duct 20, the second air duct 21 and the third air duct 22 form a complete heat dissipation channel.
The LED radiator 19 is an aluminum sheet radiator, the LED radiator 19 is arranged on the LED lamp panel 15, and the LED radiator 19 is directly contacted with the LED lamp panel 15. The LED radiator 19 comprises a heat conducting plate 190 and a heat dissipating part 191, wherein the top of the heat conducting plate 190 is directly contacted with the LED lamp panel 15, the heat dissipating part 191 is arranged at the bottom of the heat conducting plate 190, the heat dissipating part 191 faces the heat dissipating part 171, and the axial flow fan 18 covers the heat dissipating part 171 and the heat dissipating part 191 of the cold heat exchanger 17. The heat dissipation part 191 includes a plurality of heat dissipation fins horizontally arranged and a plurality of heat dissipation fins arranged at intervals in parallel.
With continued reference to fig. 1 to 4, when the novel air conditioner is used, the air blown by the turbofan 16 is guided to flow to the first air duct 20 through the transition surface on the heat absorbing part 170, the first air duct 20 is positioned at two sides of the LCD liquid crystal screen 11, the air flows through the first air duct 20 to take away the heat at two sides of the LCD liquid crystal screen to become hot air, the hot air flows to the third air duct 22 through the second air duct 21 formed at the top of the LCD liquid crystal screen 11 and the shell 10, and flows back to the turbofan 16 through the third air duct 22, and the turbofan 16 blows out again, and at the moment, the air blown by the turbofan 16 is hot air. The hot air passes through the heat absorbing part 170, and the heat on the hot air is absorbed by the heat absorbing part 170 to become cold air, and flows to the first air duct 20, thus being reciprocally circulated. The heat absorbing part 170 absorbing the heat in the hot air has a higher temperature than the heat releasing part 171, and the difference between the heat inside and outside the heat and cold exchanger 17 is large, so that the heat flows from the heat absorbing part 170 to the heat releasing part 171, and finally, the heat is emitted to the outside of the projection machine by the axial flow fan 18.
The heat productivity of the LED lamp panel 15 is large, the LED radiator 19 is directly contacted with the LED lamp panel 15, the heat generated by the LED lamp panel 15 is directly conducted to the heat conducting plate 190 of the LED radiator 19, and the heat on the heat conducting plate 190 is transferred to the heat radiating part 191 of the LED radiator 19, and the heat radiating part 171 of the cold heat exchanger 17 and the heat radiating part 191 of the LED radiator 19 are simultaneously covered by the axial flow fan 18, so that the heat of the heat radiating part 171 and the heat radiating part 191 can be simultaneously transferred to the air when the axial flow fan 18 operates, and the heat is directly conducted by the heat conducting plate 190, so that the heat radiating effect of the LED lamp panel 15 is improved.
The foregoing is merely one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the concept shall belong to the behavior of infringement of the protection scope of the present utility model.
Claims (9)
1. The utility model provides a totally enclosed monolithic formula LCD projection ray apparatus of two aluminum sheets, includes casing, LCD and LED lamp plate set up in the casing, its characterized in that: still include turbofan, cold heat exchanger, LED radiator and axial fan, turbofan sets up the bottom at the casing, cold heat exchanger includes heat absorption portion and radiating portion, the heat absorption portion embedding the casing is inboard and heat absorption portion is located turbofan's air outlet one side, the radiating portion is located the casing outside, LCD screen is located the top of heat absorption portion, the LED lamp plate set up with LCD screen parallel interval arrangement just the LED lamp plate is located LCD screen is kept away from one side of turbofan, the LED radiator is the aluminum sheet radiator, the LED radiator has a heat conduction board, the heat conduction board sets up in the casing outside just the heat conduction board direct contact the LED lamp plate, casing, cold heat exchanger and LED lamp plate enclose into a sealed space, the axial fan sets up in the casing outside just the LCD fan connects cold heat dissipation portion of heat exchanger with the LED radiator, the both sides of LCD screen are formed with first wind channel, LCD screen with form between the top surface of casing and the side of LCD screen the turbine fan, first wind channel, third wind channel, the wind channel of forming on the turbine fan, the third wind channel.
2. The dual aluminum fully sealed single panel LCD projector as defined in claim 1, wherein: the LED lamp panel is arranged on the LCD liquid crystal screen, the front phenanthrene mirror is arranged on the front surface of the LCD liquid crystal screen, the rear phenanthrene mirror is arranged on the rear surface of the LCD liquid crystal screen, the front phenanthrene mirror is arranged on the rear surface of the LCD liquid crystal screen, the rear phenanthrene mirror is arranged between the LED lamp panel and the LCD liquid crystal screen, and the front phenanthrene mirror is arranged on the rear surface of the LCD liquid crystal screen, and the first air duct is formed at intervals between the front phenanthrene mirror and the LCD liquid crystal screen.
3. The double aluminum sheet full sealed single sheet LCD projector as defined in claim 2, wherein: the front phenanthrene mirror is positioned on one side of the LCD liquid crystal screen, which is close to the turbofan, so that the front phenanthrene mirror and the shell form the third air duct on one side of the turbofan.
4. The dual aluminum fully sealed single panel LCD projector as defined in claim 1, wherein: the bottom and the top of the heat absorbing part are provided with arc transition surfaces, one end of the heat absorbing part is connected with an air outlet of the turbofan, and the other end of the heat absorbing part is opposite to the first air duct.
5. The dual aluminum fully sealed single panel LCD projector as defined in claim 1, wherein: the heat absorbing part is provided with a plurality of heat absorbing fins which are vertically arranged, and a plurality of heat absorbing fins are arranged at intervals in parallel.
6. The dual aluminum fully sealed single panel LCD projector as defined in claim 1, wherein: the heat release part is provided with a plurality of heat release fins which are horizontally arranged and a plurality of heat release fins are arranged at intervals in parallel.
7. The dual aluminum fully sealed single panel LCD projector as defined in claim 1, wherein: the LED radiator comprises a heat conducting plate and a heat radiating part, wherein the top of the heat conducting plate is directly contacted with the LED lamp panel, the heat radiating part is arranged at the bottom of the heat conducting plate and faces the heat radiating part, and the heat radiating part are covered by the axial flow fan.
8. The dual aluminum fully sealed single panel LCD projector as defined in claim 7, wherein: the heat dissipation part comprises a plurality of heat dissipation fins which are horizontally arranged and are arranged at intervals in parallel.
9. The dual aluminum fully sealed single panel LCD projector as defined in claim 6, wherein: the novel turbofan comprises a shell, and is characterized by further comprising a lens, wherein the lens is arranged in the shell and is positioned above the turbofan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321554334.4U CN220040947U (en) | 2023-06-16 | 2023-06-16 | Double-aluminum sheet full-sealed single-sheet type LCD projection optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321554334.4U CN220040947U (en) | 2023-06-16 | 2023-06-16 | Double-aluminum sheet full-sealed single-sheet type LCD projection optical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220040947U true CN220040947U (en) | 2023-11-17 |
Family
ID=88722615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321554334.4U Active CN220040947U (en) | 2023-06-16 | 2023-06-16 | Double-aluminum sheet full-sealed single-sheet type LCD projection optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220040947U (en) |
-
2023
- 2023-06-16 CN CN202321554334.4U patent/CN220040947U/en active Active
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