CN220933331U - LCD projection optical machine with integrated heat dissipation shell and LCD projector - Google Patents
LCD projection optical machine with integrated heat dissipation shell and LCD projector Download PDFInfo
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- CN220933331U CN220933331U CN202321908667.2U CN202321908667U CN220933331U CN 220933331 U CN220933331 U CN 220933331U CN 202321908667 U CN202321908667 U CN 202321908667U CN 220933331 U CN220933331 U CN 220933331U
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- heat
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 85
- 230000003287 optical effect Effects 0.000 title claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims abstract description 33
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 241000237983 Trochidae Species 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 230000005855 radiation 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 34
- 238000009423 ventilation Methods 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides an LCD projection light machine and an LCD projector with an integrated heat dissipation shell, comprising: the shell comprises a heat dissipation top shell, a middle shell and a bottom shell which are sequentially connected from top to bottom; the circulating fan is arranged in the second cavity; an optical device disposed in the first cavity, the optical device comprising an LCD screen; the heat exchange module comprises a semiconductor refrigerating sheet and a hot-face radiator which are arranged outside the shell; the first heat radiation fan is arranged outside the shell and used for cooling the hot-face radiator. The LCD projection optical machine provided by the embodiment of the utility model can effectively radiate heat of an LCD screen, and the semiconductor refrigeration sheet is added to assist in cooling, so that the temperature of the heat conductor can be rapidly reduced when the semiconductor refrigeration sheet is electrified, the cooling and radiating efficiency is greatly improved, and the volume of a hot-face radiator and the efficiency of a first radiating fan can be reduced.
Description
Technical Field
The present utility model relates to an LCD projector, and more particularly to an LCD projector with an integrated heat dissipation housing.
Background
The LCD light machine (i.e. projection light machine) is the most important component in the LCD projector, and the LCD screen absorbs a lot of heat during the operation of the LCD light machine, so that forced cooling of the LCD screen is required, and currently, a radiator and a fan are mainly used for cooling the LCD screen.
In order to ensure cooling efficiency, fan power and radiator volume are set to be larger generally, but fan power is large, noise can become larger, use experience is affected, radiator volume is large, more space can be occupied, so that an LCD projector cannot be designed in a miniaturized mode, an existing LCD ray machine shell is generally provided with a through hole for installing the radiator, a cold end of the radiator directly penetrates through the through hole to extend into the shell, the problem of gap tightness between the radiator and the through hole is needed to be considered, manufacturing is troublesome, and therefore improvement on an LCD ray machine is needed.
Disclosure of utility model
Based on this, the present utility model aims to overcome the defects of the prior art and provide an LCD projection light machine with an integrated heat dissipation housing and an LCD projector.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an LCD projection light engine with an integral heat dissipation housing, comprising:
The shell comprises a heat dissipation top shell, a middle shell and a bottom shell which are sequentially connected from top to bottom, wherein the heat dissipation top shell and the middle shell jointly enclose a first cavity, the middle shell and the bottom shell jointly enclose a second cavity, a first ventilation opening and a second ventilation opening which are used for communicating the first cavity with the second cavity are formed in the bottom of the middle shell, a heat dissipation area is formed in the outer wall of the heat dissipation top shell, a plurality of heat conductors which are spaced apart are arranged at positions, corresponding to the heat dissipation area, of the inner wall of the heat dissipation top shell, and the heat conductors and the heat dissipation top shell are integrally arranged;
The circulating fan is arranged in the second cavity and is used for sucking air in the first cavity from the first ventilation opening and exhausting the air upwards from the second ventilation opening;
The optical device is arranged in the first cavity and comprises a first phenanthrene mirror, heat-insulating glass, an LCD screen and a second phenanthrene mirror which are sequentially arranged along the direction from the second air opening to the first air opening, and the LCD screen is positioned at the second air opening;
the heat exchange module comprises a semiconductor refrigerating sheet and a hot-face radiator, wherein the semiconductor refrigerating sheet and the hot-face radiator are arranged outside the shell, the cold end face of the semiconductor refrigerating sheet is contacted with the heat dissipation area, and the hot-face radiator is contacted with the hot end face of the semiconductor refrigerating sheet;
The first heat radiation fan is arranged outside the shell and used for cooling the hot-face radiator.
Compared with the prior art, the LCD projector can effectively dissipate heat of an LCD screen, the semiconductor refrigeration piece is added to assist in cooling, the semiconductor refrigeration piece can enable the temperature of a heat conductor to be rapidly reduced when being electrified, cooling and heat dissipation efficiency is greatly improved, accordingly, the size of a hot-face radiator and the efficiency of a first heat dissipation fan can be reduced, noise is further reduced, the LCD projector can be designed in a miniaturized direction, the heat dissipation top shell and the heat conductor are integrally arranged to form an integrated heat dissipation shell, the cold end face of the semiconductor refrigeration piece is contacted with the heat dissipation area of the heat dissipation top shell, the heat conductor can be rapidly cooled, a through hole is not required to be arranged on the shell of the LCD projector to install the heat radiator, the sealing performance of the whole LCD projector can be improved, air cannot leak out from a gap, and the heat dissipation efficiency is higher.
In a preferred or alternative embodiment, the hot-surface radiator includes a first heat-conducting plate, a first heat pipe and a plurality of first heat dissipation fins arranged at intervals, the first heat-conducting plate is attached to the hot-end surface of the semiconductor refrigeration sheet, one end of the first heat pipe is connected to the first heat-conducting plate, the other end of the first heat pipe passes through the plurality of first heat dissipation fins, and an air outlet of the first heat dissipation fan faces the plurality of first heat dissipation fins.
In a preferred or alternative embodiment, the heat conductor is a cylindrical structure or a rib structure.
In a preferred or alternative embodiment, the inner wall of the heat dissipation top shell is further provided with a plurality of guide fins arranged at intervals, and a guide air channel is formed between two adjacent guide fins and is used for guiding air flow to the heat conductor.
In a preferred or alternative embodiment, the outer side wall of the middle case is provided with a mounting groove for mounting the hot-face radiator.
In a preferred or alternative embodiment, the LCD projection light machine further includes a light source module, where the light source module includes an LED light source, a light funnel, and a light funnel housing, where an opening is provided on the middle housing corresponding to a side wall of the LCD screen, where the light funnel housing is installed at the opening, where the light funnel is disposed in the light funnel housing, where a light outlet of the light funnel faces the LCD screen, and where a light inlet of the light funnel is disposed in the LED light source.
In a preferred or alternative embodiment, the LCD projector further comprises an LED heat sink for dissipating heat from the LED light source.
In a preferred or alternative embodiment, the LED radiator includes a second heat conducting plate, a second heat pipe and a plurality of second heat dissipation fins arranged at intervals, the second heat conducting plate is attached to a side of the LED light source facing away from the light funnel, one end of the second heat pipe is connected to the second heat conducting plate, and the other end of the second heat pipe passes through the plurality of second heat dissipation fins.
In a preferred or alternative embodiment, the LCD projector further includes a second heat dissipation fan, where the second heat dissipation fan is disposed outside the housing, and the second heat dissipation fan faces the second heat dissipation fins.
The LCD projector comprises the LCD projector.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic diagram of an LCD projector according to an embodiment of the utility model;
FIG. 2 is an exploded view of a housing according to an embodiment of the present utility model;
FIG. 3 is an exploded view of an LCD projector according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of an LCD projector according to an embodiment of the utility model;
fig. 5 is a schematic structural diagram of a heat dissipation top case according to an embodiment of the present utility model.
Reference numerals:
1. A housing; 11. a heat dissipating top shell; 110. a heat dissipation area; 111. a heat conductor; 112. a deflector; 1121. a diversion air duct; 12. a middle shell; 121. a first vent; 122. a second vent; 123. a mounting groove; 124. an opening; 13. a bottom case; 101. a first cavity; 102. a second cavity; 2. a circulating fan; 31. a first phenanthrene mirror; 32. a heat insulating glass; 33. an LCD screen; 34. a second phenanthrene mirror; 35. a reflective mirror; 4. a heat exchange module; 41. a semiconductor refrigeration sheet; 42. a hot-side radiator; 421. a first heat-conducting plate; 422. a first heat pipe; 423. a first heat sink fin; 5. a first heat dissipation fan; 6. a light source module; 61. an LED light source; 62. a light funnel; 63. a light funnel housing; 7. an LED radiator; 71. a second heat-conducting plate; 72. a second heat pipe; 73. a second heat sink fin; 8. a second heat radiation fan; 9. and a projection lens.
Detailed Description
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible implementations and advantages of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
Referring to fig. 1 to 5, an LCD projection light machine with an integrated heat dissipation housing according to an embodiment of the present utility model includes: the heat exchanger comprises a machine shell 1, a circulating fan 2, optical devices, a heat exchange module 4 and a first heat radiation fan 5.
The casing 1 includes a heat dissipation top casing 11, a middle casing 12, and a bottom casing 13 sequentially connected from top to bottom, the heat dissipation top casing 11 and the middle casing 12 enclose a first cavity 101 together, the middle casing 12 and the bottom casing 13 enclose a second cavity 102 together, and a first ventilation opening 121 and a second ventilation opening 122 which are used for communicating the first cavity 101 and the second cavity 102 are arranged at the bottom of the middle casing 12. Specifically, the middle shell 12 and the bottom shell 13 are both basin-shaped structures with upward openings 124, the heat dissipation top shell 11 covers the openings 124 of the middle shell 12 to enclose the first cavity 101 together with the middle shell 12, and the openings 124 of the bottom shell 13 are butted with the bottom of the middle shell 12 to enclose the second cavity 102 together.
The outer wall of the heat dissipation top shell 11 is provided with a heat dissipation area 110, a plurality of spaced heat conductors 111 are arranged at positions of the inner wall of the heat dissipation top shell 11 corresponding to the heat dissipation area 110, and the heat conductors 111 and the heat dissipation top shell 11 are integrally arranged. In the present embodiment, the heat dissipation area 110 is a recessed area on the outer wall of the heat dissipation top case 11.
The circulating fan 2 is disposed in the second cavity 102, and is configured to suck air in the first cavity 101 from the first ventilation opening 121 and discharge the air upward from the second ventilation opening 122. Thereby, the air in the first chamber 101 can be circulated continuously.
The optical device is disposed in the first cavity 101, and the optical device includes an LCD screen 33, and the LCD screen 33 is disposed at the second ventilation opening 122, so that the air flow discharged from the circulation fan 2 can directly pass through the LCD screen 33 to effectively cool the air flow. The second air opening 122 is a strip-shaped opening, and the extending direction of the second air opening 122 is the same as the length direction of the LCD screen 33, so that the second air opening 122 is adapted to the LCD screen 33, and the air flow discharged from the second air opening 122 can fully pass through the LCD screen 33.
The heat exchange module 4 comprises a semiconductor refrigeration sheet 41 and a hot-surface radiator 42 which are arranged outside the casing 1, the cold end surface of the semiconductor refrigeration sheet 41 is contacted with the heat dissipation area 110, the hot-surface radiator 42 is contacted with the hot end surface of the semiconductor refrigeration sheet 41, and the first heat dissipation fan 5 is arranged outside the casing 1 and used for cooling the hot-surface radiator 42.
It can be understood that when the LCD projector works, on one hand, the semiconductor refrigeration sheet 41 is powered on, and heat transfer occurs between the cold end surface and the hot end surface of the semiconductor refrigeration sheet 41 under the peltier effect, so that the temperature of the hot end surface of the semiconductor refrigeration sheet 41 is increased, the temperature of the cold end surface is lowered, and as the heat dissipation area 110 contacts with the cold end surface of the semiconductor refrigeration sheet 41 and the heat conductor 111 corresponds to the heat dissipation area 110, the temperature of the heat conductor 111 is lowered, the hot-surface radiator 42 contacts with the hot end surface of the semiconductor refrigeration sheet 41, the temperature of the hot-surface radiator 42 is increased, and meanwhile, the first heat dissipation fan 5 works to cool the hot-surface radiator 42, so that the temperature of the hot end surface of the semiconductor refrigeration sheet 41 is lowered, and the working safety of the semiconductor refrigeration sheet is ensured; on the other hand, the heat generated by the operation of the LCD screen 33 is relatively high, so that the temperature in the first cavity 101 is relatively high, the circulating fan 2 also starts to operate at this moment, the second air vent 122 outputs an air flow upwards, the air flow drives the hot air at the LCD screen 33 to the top to perform sufficient heat exchange with the heat conductor 111 on the inner wall of the heat dissipation top shell 11, thereby cooling to form cold air, the cold air is sucked by the circulating fan 2 through the first air vent 121 and is discharged to the LCD screen 33 from the second air vent 122 to cool, the rapid heat dissipation of the LCD screen 33 is realized, the normal operation of the LCD screen 33 is effectively ensured, and the service life of the LCD screen 33 is prolonged.
As can be seen from the above technical solution, the LCD projection optical engine according to the embodiment of the present utility model can effectively dissipate heat from the LCD screen 33, and the semiconductor refrigeration sheet 41 is added to assist in cooling, so that the temperature of the heat conductor 111 can be rapidly reduced when the semiconductor refrigeration sheet 41 is energized, and the cooling and heat dissipation efficiency is greatly improved, thereby reducing the volume of the hot-side radiator 42 and the efficiency of the first heat dissipation fan 5, further reducing noise and enabling the LCD projection optical engine to be designed in a miniaturized direction, and the heat dissipation top shell 11 and the heat conductor 111 are integrally provided to form an integrated heat dissipation shell, so that the cold end surface of the semiconductor refrigeration sheet 41 contacts the heat dissipation area 110 of the heat dissipation top shell 11, and the heat conductor 111 can be rapidly cooled, so that a through hole is not required to be provided on the casing 1 of the LCD projection optical engine to install the heat radiator, the sealing performance of the complete machine can be improved, air cannot leak from a gap, and the heat dissipation efficiency is higher.
Preferably, in this embodiment, the hot-side radiator 42 includes a first heat conductive plate 421, a first heat pipe 422, and a plurality of first heat dissipation fins 423 arranged at intervals, the first heat conductive plate 421 is attached to the hot-side surface of the semiconductor refrigeration sheet 41, one end of the first heat pipe 422 is connected to the first heat conductive plate 421, the other end passes through the plurality of first heat dissipation fins 423, and an air outlet of the first heat dissipation fan 5 is opposite to the plurality of first heat dissipation fins 423. The first heat conducting plate 421 can conduct the heat of the thermal end face of the semiconductor refrigeration piece 41 to the first heat dissipating fins 423 through the first heat pipe 422, and the heat dissipating areas of the plurality of first heat dissipating fins 423 are large, so that effective heat dissipation can be performed, and the normal operation of the semiconductor refrigeration piece 41 is ensured.
The heat conductor 111 may have various shapes, and for convenience in manufacturing and increasing the contact area with air, preferably, the heat conductor 111 in this embodiment has a cylindrical structure, and in other embodiments, the heat conductor 111 may have a rib structure.
In order to facilitate heat exchange between the air flow and the heat conductor 111, preferably, in this embodiment, a plurality of guide fins 112 are further disposed on the inner wall of the heat dissipation top shell 11 at intervals, and a guide air channel 1121 is formed between two adjacent guide fins 112, where the guide air channel 1121 is used for guiding the air flow to the heat conductor 111. Accordingly, the air flow output by the second air opening 122 passes through the LCD screen 33 and then can be guided to the heat conductor 111 through the air guide duct 1121 to perform heat exchange with the heat conductor 111, so as to increase the air flow speed and improve the heat dissipation efficiency.
In order to facilitate the installation of the hot-side radiator 42, it is preferable that the outer side wall of the middle case 12 of the present embodiment is provided with an installation groove 123 for installing the hot-side radiator 42.
Specifically, the LCD projection light machine of this embodiment further includes a light source module 6, where the light source module 6 includes an LED light source 61, a light funnel 62, and a light funnel housing 63, an opening 124 is formed on the side wall of the middle shell 12 corresponding to the LCD screen 33, the light funnel housing 63 is installed at the opening 124, the light funnel 62 is disposed in the light funnel housing 63, a light outlet of the light funnel 62 faces the LCD screen 33, and a light inlet of the light funnel 62 is disposed in the LED light source 61.
The optical device further comprises a first phenanthrene mirror 31, heat-insulating glass 32, a second phenanthrene mirror 34 and a reflecting mirror 35, wherein the first phenanthrene mirror 31, the heat-insulating glass 32, the LCD screen 33, the second phenanthrene mirror 34 and the reflecting mirror 35 are sequentially arranged along the direction from the second ventilation opening 122 to the first ventilation opening 121, and the first phenanthrene mirror 31 is covered at the opening 124. The first phenanthrene mirror 31, the heat-insulating glass 32, the second phenanthrene mirror 34 and the reflective mirror 35 also have certain heat, and the first phenanthrene mirror, the heat-insulating glass 32, the second phenanthrene mirror and the reflective mirror 35 are placed in the first cavity 101 so as to be beneficial to cooling together.
The LCD projector further includes a projection lens 9, where the projection lens 9 is disposed on an outgoing light path of the reflector 35, so that light emitted by the LED light source 61 sequentially passes through the light funnel 62, the first phenanthrene mirror 31, the heat insulation glass 32, the LCD screen 33, the second phenanthrene mirror 34 and the reflector 35 and then is emitted from the projection lens 9 to form a projection image.
Preferably, the LCD projector according to this embodiment further includes an LED radiator 7, where the LED radiator 7 is configured to radiate heat from the LED light source 61, so as to effectively ensure normal operation of the LED light source 61 and prolong the service life of the LED light source 61. The LED heat sink 7 includes a second heat conductive plate 71, a second heat pipe 72, and a plurality of second heat dissipation fins 73 arranged at intervals, the second heat conductive plate 71 is attached to a side of the LED light source 61 opposite to the light funnel 62, one end of the second heat pipe 72 is connected to the second heat conductive plate 71, and the other end passes through the plurality of second heat dissipation fins 73. The second heat conducting plate 71 can conduct the heat of the LED light source 61 to the second heat dissipating fins 73 through the second heat pipe 72, and the heat dissipating areas of the plurality of second heat dissipating fins 73 are large, so that efficient heat dissipation can be performed.
In order to effectively cool the LED radiator 7, preferably, the LCD projection optical engine of this embodiment further includes a second heat dissipation fan 8, where the second heat dissipation fan 8 is disposed outside the housing 1, and the second heat dissipation fan 8 faces the second heat dissipation fins 73.
The embodiment of the utility model also provides an LCD projector which comprises an outer shell and the LCD projector light machine arranged in the outer shell.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. An LCD projection light engine with an integral heat dissipation housing, comprising:
The shell comprises a heat dissipation top shell, a middle shell and a bottom shell which are sequentially connected from top to bottom, wherein the heat dissipation top shell and the middle shell jointly enclose a first cavity, the middle shell and the bottom shell jointly enclose a second cavity, a first ventilation opening and a second ventilation opening which are used for communicating the first cavity with the second cavity are formed in the bottom of the middle shell, a heat dissipation area is formed in the outer wall of the heat dissipation top shell, a plurality of heat conductors which are spaced apart are arranged at positions, corresponding to the heat dissipation area, of the inner wall of the heat dissipation top shell, and the heat conductors and the heat dissipation top shell are integrally arranged;
The circulating fan is arranged in the second cavity and is used for sucking air in the first cavity from the first ventilation opening and exhausting the air upwards from the second ventilation opening;
The optical device is arranged in the first cavity and comprises a first phenanthrene mirror, heat-insulating glass, an LCD screen and a second phenanthrene mirror which are sequentially arranged along the direction from the second air opening to the first air opening, and the LCD screen is positioned at the second air opening;
the heat exchange module comprises a semiconductor refrigerating sheet and a hot-face radiator, wherein the semiconductor refrigerating sheet and the hot-face radiator are arranged outside the shell, the cold end face of the semiconductor refrigerating sheet is contacted with the heat dissipation area, and the hot-face radiator is contacted with the hot end face of the semiconductor refrigerating sheet;
The first heat radiation fan is arranged outside the shell and used for cooling the hot-face radiator.
2. The LCD projector as defined in claim 1, wherein:
The hot-face radiator comprises a first heat conducting plate, a first heat pipe and a plurality of first radiating fins which are arranged at intervals, wherein the first heat conducting plate is attached to the hot-end face of the semiconductor refrigerating sheet, one end of the first heat pipe is connected to the first heat conducting plate, the other end of the first heat pipe penetrates through the plurality of first radiating fins, and an air outlet of the first radiating fan faces the plurality of first radiating fins.
3. The LCD projector as defined in claim 1, wherein:
The heat conductor is of a cylindrical structure or a rib structure.
4. The LCD projector as defined in claim 1, wherein:
The inner wall of the heat dissipation top shell is also provided with a plurality of guide vanes which are arranged at intervals, a guide air channel is formed between two adjacent guide vanes, and the guide air channel is used for guiding air flow to the heat conductor.
5. The LCD projector as defined in claim 1, wherein:
And the outer side wall of the middle shell is provided with a mounting groove for mounting the hot-surface radiator.
6. The LCD projector light machine according to any one of claims 1 to 5, wherein:
The LED display screen comprises a middle shell, and is characterized by further comprising a light source module, wherein the light source module comprises an LED light source, a light funnel and a light funnel shell, an opening is formed in the side wall of the middle shell, corresponding to the LCD screen, the light funnel shell is arranged at the opening, the light funnel is arranged in the light funnel shell, a light outlet of the light funnel faces the LCD screen, and a light inlet of the light funnel is arranged in the LED light source.
7. The LCD projector as defined in claim 6, wherein:
The LED light source comprises an LED light source body, and is characterized by further comprising an LED radiator, wherein the LED radiator is used for radiating the LED light source.
8. The LCD projector as defined in claim 7, wherein:
The LED radiator comprises a second heat conducting plate, a second heat pipe and a plurality of second heat radiating fins which are arranged at intervals, wherein the second heat conducting plate is attached to one side of the LED light source, which is opposite to the light funnel, one end of the second heat pipe is connected with the second heat conducting plate, and the other end of the second heat pipe penetrates through the second heat radiating fins.
9. The LCD projector as defined in claim 8, wherein:
The fan also comprises a second heat radiation fan, wherein the second heat radiation fan is arranged outside the shell, and the second heat radiation fan is opposite to the second heat radiation fins.
10. An LCD projector, comprising:
an LCD projector as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321908667.2U CN220933331U (en) | 2023-07-19 | 2023-07-19 | LCD projection optical machine with integrated heat dissipation shell and LCD projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321908667.2U CN220933331U (en) | 2023-07-19 | 2023-07-19 | LCD projection optical machine with integrated heat dissipation shell and LCD projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220933331U true CN220933331U (en) | 2024-05-10 |
Family
ID=90939376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321908667.2U Active CN220933331U (en) | 2023-07-19 | 2023-07-19 | LCD projection optical machine with integrated heat dissipation shell and LCD projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220933331U (en) |
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2023
- 2023-07-19 CN CN202321908667.2U patent/CN220933331U/en active Active
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