CN219370193U - Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine - Google Patents
Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine Download PDFInfo
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- CN219370193U CN219370193U CN202320165304.8U CN202320165304U CN219370193U CN 219370193 U CN219370193 U CN 219370193U CN 202320165304 U CN202320165304 U CN 202320165304U CN 219370193 U CN219370193 U CN 219370193U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model relates to the field of projection light machines, in particular to an air-cooled full-sealed high-brightness high-uniformity single-piece type LCD projection light machine which comprises a shell, an LCD liquid crystal screen, a lens, a cold-heat exchanger, an inner turbine big fan and an inner turbine small fan, wherein the LCD liquid crystal screen and the lens are arranged on the shell, the cold-heat exchanger is arranged on the shell, the shell forms a sealed space, the cold-heat exchanger is provided with a heat absorption part, the heat absorption part is embedded into the shell, the inner turbine big fan is arranged on one side of the LCD liquid crystal screen, and the inner turbine small fan is arranged on the other side of the LCD liquid crystal screen. According to the utility model, the inner large turbofan and the inner small turbofan are respectively arranged at the two sides of the LCD liquid crystal screen, heat is radiated at the two sides of the LCD liquid crystal screen, hot air is sent out of the shell through the cold heat exchanger, the air duct is improved, the heat radiation effect is improved, and meanwhile, the temperature at the two sides of the LCD liquid crystal screen is uniform, so that the projection picture effect is improved.
Description
Technical Field
The utility model relates to the field of projection light machines, in particular to an air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection light machine.
Background
In the stage industry, the single-chip LCD projection optics have two kinds of dustproof heat dissipation solutions: a semi-closed optical machine has the advantages that the air inlet and the air outlet of the semi-closed optical machine are stuck by the high-density dustproof net, the structure is good in radiating effect but poor in dustproof performance, the whole brightness of the optical machine is high, and a great number of dust points are easily accumulated in an LCD (liquid crystal display) screen. The other is a full-closed projection light machine, the full-closed projection light machine guides heat in the light machine to the outside through a cold heat exchanger of the light machine, and the dust-proof performance is high and the reliability is better, but the defect is that a large amount of heat in the light machine cannot be effectively discharged out of the light machine in time, so that the temperature of each optical element in the light machine is higher. Therefore, the brightness and uniformity of the optical machine are low, and the user experience is affected.
In the industry at present, a fully-closed optical engine mostly adopts a heat radiation structure of a single-side heat radiation fan and a cold heat exchanger, namely, a heat radiation fan is arranged on one side of an LCD (liquid crystal display) screen to enable wind in the optical engine to circulate and radiate through the cold heat exchanger, but because the LCD screen is sensitive to temperature, the structure of single-side heat radiation can lead the LCD screen to be close to the temperature intersection at the air outlet of the heat radiation fan, and accordingly, the LCD screen in the area projects a picture with higher display brightness; the temperature of the LCD liquid crystal screen at one side far away from the air outlet is higher, and accordingly the display brightness of the projected picture of the LCD liquid crystal screen in the area is lower, so that the uniformity of the projected picture of the LCD liquid crystal screen is lower, and the visual effect is far transmitted to the DLP projection optical machine.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine which is characterized in that an inner turbine big fan and an inner turbine small fan are arranged on two sides of an LCD (liquid crystal display) screen, an inner air duct is improved, the temperature of the two sides of the LCD screen is uniform, and the projection picture effect is improved.
The utility model adopts the following technical scheme:
an air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine comprises a shell, an LCD liquid crystal screen, a lens, a cold-heat exchanger, an inner turbofan and an inner turbofan, wherein the LCD liquid crystal screen and the lens are arranged on the shell, the cold-heat exchanger is arranged on the shell, the shell forms a sealed space, the cold-heat exchanger is provided with a heat absorption part and a heat release part, the heat absorption part is connected with the heat release part, the heat absorption part is embedded in the shell, the inner turbofan is arranged on one side of the LCD liquid crystal screen, the air inlet of the inner turbine big fan faces the cold and heat exchanger located in the sealed space to form a first heat dissipation air channel, the air outlet of the inner turbine big fan faces the LCD liquid crystal screen, a second heat dissipation air channel is formed in the direction of the LCD liquid crystal screen, the inner turbine small fan is arranged on the other side of the LCD liquid crystal screen, the air inlet of the inner turbine small fan faces the second heat dissipation air channel to form a third heat dissipation air channel, the air outlet of the inner turbine small fan faces the lens direction, cold air in the shell is changed into hot air through the first heat dissipation air channel and the second heat dissipation air channel and exchanges heat with the LCD liquid crystal screen, and after circulation is achieved in the shell through the third heat dissipation air channel, the cold air is cooled through the cold and heat exchanger and changed into cold air for recirculation.
Further, the lens comprises reflecting glass, the reflecting glass is arranged in the shell, a fourth heat dissipation air duct is formed between the reflecting glass and the lens, and a fifth heat dissipation air duct is formed between the reflecting glass and the cold-heat exchanger.
Further, the heat absorbing part comprises a plurality of inner radiating fins which are horizontally arranged and are spaced in parallel, gaps among the radiating fins form a heat exchange flow channel, and an air inlet of the inner large turbine fan faces the heat exchange flow channel.
Further, the heat radiating portion includes a plurality of outer heat radiating fins arranged horizontally and spaced in parallel.
Further, a mounting notch is formed on one side of the shell, two sides of the mounting notch are inwards recessed to form a closed groove, a closed ring is arranged on the cold-heat exchanger, the closed ring is inserted into the closed groove to enable the cold-heat exchanger and the shell to form a sealed space, a heat absorption part of the cold-heat exchanger is located on the inner side of the shell, and a heat release part is located on the outer side of the shell.
Further, the heat exchanger further comprises an externally hung axial flow fan, and the externally hung axial flow fan is arranged on the heat release part of the cold and heat exchanger.
Further, the air outlet of the inner large turbine fan is provided with two arc-shaped guide plates which are obliquely arranged at intervals, a flow passage with one wide side and one narrow side is formed between the two guide plates, one wide side of the flow passage faces the air outlet of the inner large turbine fan, and the air outlet of the inner large turbine fan is guided by the guide plates to flow to the second heat dissipation air duct.
Further, a plurality of reinforcing ribs are formed on the guide plate, and the reinforcing ribs are connected with the shell.
Further, the inner worm wheel big fan and the inner worm wheel small fan are arranged at two sides of the LCD liquid crystal screen in parallel at intervals.
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:
first, through set up interior turbine big fan and interior turbine little fan respectively in LCD screen both sides, dispel the heat to LCD screen both sides simultaneously to send out the casing with hot-blast through cold heat exchanger, improve the wind channel, improve the radiating effect, reduce LCD screen temperature, promote luminance, make the temperature of LCD screen both sides even simultaneously, thereby improve the projection picture effect.
And the second radiating fins are horizontally arranged at intervals, so that hot air in the shell can be completely contacted with the radiating fins, the radiating fins can well conduct heat out of the shell, and the air can be guided to the air inlet of the inner turbine big fan through gaps between the radiating fins, so that the circulation of the air in the shell is accelerated, and the radiating effect is improved.
Thirdly, the externally hung axial flow fan assists the cold and heat exchanger to exchange heat, so that the heat exchange efficiency of the cold and heat exchanger is improved, the temperature in the sealed shell is further reduced, the problem of an LCD (liquid crystal display) is solved, and the brightness is improved.
Fourth, guide the cold wind of interior big fan air outlet department to the second cooling wind channel through the guide plate to flow through LCD along the second cooling wind channel, cool down the LCD, ensure that the wind energy of interior big fan air outlet department flows through the second cooling wind channel furthest, improve the radiating effect to LCD, thereby promote luminance.
Fifth, increase the joint strength between baffle and the casing through the strengthening rib, increase the stability of baffle.
Drawings
FIG. 1 is a schematic view of a portion of a construction of a specific embodiment of the present utility model;
FIG. 2 is a top view of the overall structure of an embodiment of the present utility model, with arrows showing the direction of the wind path and wind flow;
FIG. 3 is a partial schematic view of an embodiment of the present utility model, showing a state in which a cold heat exchanger is not installed;
fig. 4 is a schematic view of the structure of the cold-heat exchanger of the present utility model.
In the figure: 1. the device comprises a shell, a mounting notch, a closing groove, a liquid crystal display (2), a lens, a reflecting glass, a cold and heat exchanger, a closed ring, a heat absorbing part, an inner radiating fin and a heat absorbing part, wherein the shell is 10, the mounting notch is 11, the closing groove is 2, the LCD screen is 3, the lens is 4, the reflecting glass is 5, the cold and heat exchanger is 50, the closing ring is 51, the heat absorbing part is 510, 511, a heat exchange flow passage, 52, a heat release part, 520, an outer heat radiation fin, 6, an inner large turbine fan, 7, an inner small turbine fan, 8, an outer axial flow fan, 9, a guide plate and 90, and reinforcing ribs.
S1, a first heat dissipation air channel, S2, a second heat dissipation air channel, S3, a third heat dissipation air channel, S4, a fourth heat dissipation air channel, S5 and a fifth heat dissipation air channel.
Detailed Description
The utility model is further described below by means of specific embodiments.
Referring to fig. 1 to 4, the air-cooled full-sealed high-brightness high-uniformity single-sheet LCD projection optical machine of the present utility model includes a housing 1, an LCD liquid crystal screen 2, a lens 3, a reflective glass 4, a cold heat exchanger 5, an inner turbo large fan 6, an inner turbo small fan 7, and an outer-hanging axial fan 8, wherein the LCD liquid crystal screen 2 and the lens 3 are disposed on the housing 1, the reflective glass 4 is disposed in the housing 1, a fourth heat dissipation channel S4 is formed between the reflective glass 4 and the lens 3, a fifth heat dissipation channel S5 is formed between the reflective glass 4 and the cold heat exchanger 5, the cold heat exchanger 5 is disposed on the housing 1 and encloses a sealed space with the housing 1, the outer-hanging axial fan 8 is disposed on the cold heat exchanger 5, the inner turbo large fan 6 and the inner turbo small fan 7 are disposed in parallel and spaced apart and are respectively located at the left and right side edge positions of the LCD liquid crystal screen 2, and for convenient observation, fig. 1 to 3 each conceal top cover of the housing 1, and in practical use, the housing 1 has a top cover to enclose a sealed space.
The heat exchanger comprises a shell 1, wherein an installation notch 10 is formed on one side of the shell 1, a closed groove 11 is formed on two inwards concave sides of the installation notch 10, the heat exchanger 5 comprises a closed ring 50, a heat absorption part 51 and a heat release part 52, the heat absorption part 51 is arranged on one side of the closed ring 50, the heat release part 52 is arranged on the other side of the closed ring 50, the closed ring 50 is inserted into the closed groove 11 to enable the heat exchanger 5 and the shell 1 to form a sealed space, the heat absorption part 51 of the heat exchanger 5 is positioned on the inner side of the shell 1, the heat release part 52 is positioned on the outer side of the shell 1, the heat absorption part 51 is composed of a plurality of inner heat dissipation fins 510 which are horizontally arranged and are parallel at intervals, a heat exchange flow channel 511 is formed between the inner heat dissipation parts 52 is composed of a plurality of outer heat dissipation fins 520 which are horizontally arranged and are parallel at intervals.
The air inlet of the inner turbo big fan 6 faces the heat exchange flow channel 52 formed on the cold and heat exchanger 5 located in the sealed space and forms a first heat radiation air channel S1, the air outlet of the inner turbo big fan 6 faces the LCD liquid crystal screen 2, a second heat radiation air channel S2 is formed, the inner turbo small fan 7 is arranged on the other side of the LCD liquid crystal screen 2, the air inlet of the inner turbo small fan 7 faces the second heat radiation air channel S2, a third heat radiation air channel S3 is formed on the air outlet of the inner turbo small fan 7 faces the direction of the lens 3, cold air in the shell 1 is changed into hot air through the first heat radiation air channel S1, the second heat radiation air channel S2 and the LCD liquid crystal screen 2, and after circulation is achieved in the shell 1 through the third heat radiation air channel S3, the fourth heat radiation air channel S4 and the fifth heat radiation air channel S5, cooling is changed into cold air recirculation through the cold heat exchanger 5.
The air outlet of the inner turbo big fan 6 is provided with two arc-shaped guide plates 9, the two guide plates 9 are obliquely arranged at intervals, a flow passage with one wide side and one narrow side is formed between the two guide plates 9, and one wide side of the flow passage faces the air outlet of the inner turbo big fan 6. The deflector 9 is formed with a plurality of reinforcing ribs 90, and the reinforcing ribs 90 are connected with the housing 1.
With continued reference to fig. 1 to 4, when the present utility model is used, the large inner worm wheel fan 6 and the small inner worm wheel fan 7 are energized to operate, cold air is blown out from the air outlet of the large inner worm wheel fan 6, the cold air flows to the second heat dissipation air duct S2 through the guide plate 9, the cold air flows to the third heat dissipation air duct S3 from the second heat dissipation air duct S2, passes through the LCD liquid crystal screen 2 and takes away heat collected on the LCD liquid crystal screen 2, and becomes hot air to be absorbed by the small inner worm wheel fan 7, meanwhile, the small inner worm wheel fan 7 absorbs heat of the LCD liquid crystal screen 2 from the third heat dissipation air duct S3 on the other side, and blows the hot air absorbed by the second heat dissipation air duct S2 and the third heat dissipation air duct S3 to the fourth heat dissipation air duct S4, and flows to the heat exchange flow passage 511 between the inner heat dissipation fins 510 on the cold heat exchanger 5 after passing through the fourth heat dissipation air duct A4 and the fifth heat dissipation air duct S5, and is transferred to the outer side of the housing 1 through the outer heat dissipation fins 520 of the outer cooling heat exchanger 5 via the external axial flow fan 8, and the hot air flowing through the heat exchange flow passage 511 is greatly cooled down, and becomes hot air and is absorbed by the large inner worm wheel fan 6. The circulation is carried out, so that the temperature at two sides of the LCD 2 is ensured to be in an ideal state, and the brightness of the LCD projection optical machine is ensured.
Because the two sides of the LCD liquid crystal screen 2 are respectively provided with the inner turbine big fan 6 and the inner turbine small fan 7, the consistency of the wind temperature of the left area and the right area of the LCD liquid crystal screen 2 is guaranteed to the greatest extent, the uniformity of the LCD projection optical machine is improved to the greatest extent, compared with the uniformity of the single-side arrangement inner turbine fan totally-enclosed optical machine, the uniformity of the single-side arrangement inner turbine fan totally-enclosed optical machine can be improved by 20%, meanwhile, the air channel in the shell 1 is improved by additionally arranging the inner turbine small fan 7, the circulating speed of wind in the shell 1 is accelerated, the heat dissipation effect is improved, and the brightness 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 an air-cooled totally enclosed high luminance high degree of consistency monolithic LCD projection ray apparatus, includes casing, LCD and camera lens, LCD and camera lens set up on the casing, its characterized in that: the heat-absorbing part is connected with the heat-releasing part, the heat-absorbing part is embedded into the shell, the inner large turbine fan is arranged on one side of the LCD liquid crystal screen, an air inlet of the inner large turbine fan forms a first heat-dissipating air channel towards the cold heat exchanger positioned in the sealed space, an air outlet of the inner large turbine fan forms a second heat-dissipating air channel towards the LCD liquid crystal screen, the inner small turbine fan is arranged on the other side of the LCD liquid crystal screen, an air inlet of the inner small turbine fan forms a third heat-dissipating air channel towards the second heat-dissipating air channel, an air outlet of the inner small turbine fan faces towards the direction of the lens, cold air in the shell is changed into hot air through heat exchange of the first heat-dissipating air channel and the second heat-dissipating air channel, and is changed into cold air for recirculation after cooling and recycling in the shell through the third heat-dissipating air channel.
2. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the lens is characterized by further comprising reflecting glass, wherein the reflecting glass is arranged in the shell, a fourth heat dissipation air duct is formed between the reflecting glass and the lens, and a fifth heat dissipation air duct is formed between the reflecting glass and the cold-heat exchanger.
3. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the heat absorption part comprises a plurality of inner radiating fins which are horizontally arranged and are spaced in parallel, gaps among the radiating fins form a heat exchange flow channel, and an air inlet of the inner large turbine fan faces the heat exchange flow channel.
4. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the heat release part comprises a plurality of outer radiating fins which are horizontally arranged and are spaced in parallel.
5. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the heat exchanger is characterized in that a mounting notch is formed in one side of the shell, two sides of the mounting notch are inwards recessed to form a closed groove, the cold and heat exchanger is provided with a closed ring, the closed ring is inserted into the closed groove to enable the cold and heat exchanger and the shell to form a sealed space, a heat absorption part of the cold and heat exchanger is located inside the shell, and a heat release part is located outside the shell.
6. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the heat exchanger also comprises an externally hung axial flow fan, and the externally hung axial flow fan is arranged on the heat release part of the cold and heat exchanger.
7. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 1, wherein: the air outlet of the inner turbo big fan is provided with two arc-shaped guide plates, the two guide plates are obliquely arranged at intervals, a flow passage with one wide side and one narrow side is formed between the two guide plates, one wide side of the flow passage faces the air outlet of the inner turbo big fan, and the air outlet of the inner turbo big fan is guided by the guide plates to flow to the second heat dissipation air duct.
8. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 7, wherein: the guide plate is provided with a plurality of reinforcing ribs, and the reinforcing ribs are connected with the shell.
9. The air-cooled, hermetically sealed, high brightness, high uniformity, single-panel LCD projection engine of claim 7, wherein: the inner turbofan and the inner turbofan are arranged at two sides of the LCD liquid crystal screen in parallel at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320165304.8U CN219370193U (en) | 2023-02-09 | 2023-02-09 | Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320165304.8U CN219370193U (en) | 2023-02-09 | 2023-02-09 | Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine |
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| Publication Number | Publication Date |
|---|---|
| CN219370193U true CN219370193U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320165304.8U Active CN219370193U (en) | 2023-02-09 | 2023-02-09 | Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370193U (en) |
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2023
- 2023-02-09 CN CN202320165304.8U patent/CN219370193U/en active Active
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