CN223244959U - A multi-fan heat dissipation open optical machine and LCD projector - Google Patents
A multi-fan heat dissipation open optical machine and LCD projectorInfo
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- CN223244959U CN223244959U CN202422554541.0U CN202422554541U CN223244959U CN 223244959 U CN223244959 U CN 223244959U CN 202422554541 U CN202422554541 U CN 202422554541U CN 223244959 U CN223244959 U CN 223244959U
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- heat dissipation
- fan
- air
- air outlet
- light source
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Abstract
The utility model relates to a multi-fan radiating open type optical machine and an LCD projector, wherein the multi-fan radiating open type optical machine comprises an optical machine shell, a first radiating fan, a second radiating fan and a bottom radiating fan; the LCD screen is installed in the ray machine shell, the ray machine shell is provided with a heat dissipation air channel passing through two sides of the LCD screen, the heat dissipation air channel is provided with an air inlet, a first air outlet and a second air outlet which are communicated with the outside, the air inlet and the first air outlet are positioned at two opposite ends of the heat dissipation air channel in the horizontal direction, and the second air outlet is positioned at the bottom of the heat dissipation air channel in the vertical direction. According to the multi-fan radiating open type optical engine, under the condition that a semiconductor refrigerating sheet, a large number of radiators, liquid cooling and other radiating modes are not used, radiating of the open type optical engine is completed in a low-cost mode through the design of the air duct and the mutual cooperation of serial connection of all fans, air flow interference among the fans is avoided, air flow smoothness is ensured, radiating efficiency is improved, overall power consumption and size are reduced, and economy and high efficiency are achieved.
Description
Technical Field
The utility model relates to the technical field of LCD projection, in particular to a projection external wide-angle lens and a projection combined lens.
Background
The optical machine of the projector is the most dominant heat generating component, so it is necessary to design a heat dissipation structure for the optical machine. The optical engine is generally divided into a closed optical engine and an open optical engine, wherein the air in the closed optical engine is self-circulated and is not communicated with the outside air, and the traditional open optical engine is communicated with the outside air to dissipate heat.
In some prior art, the heat dissipation efficiency is improved by adding components such as a semiconductor refrigerating sheet and the like in the housing of the optical machine, however, the method has high power consumption and high cost, and is not beneficial to the reduction of the cost of the whole machine.
Therefore, developing a heat dissipation system that is efficient, compact, and low cost is critical to improving the overall performance of an open-ended optical engine.
Disclosure of utility model
Based on the above, the present utility model aims to overcome the defects of the prior art, and provide a multi-fan heat dissipation open type optical machine and an LCD projector.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
A multi-fan heat dissipation open-ended machine, comprising:
The device comprises an optical machine shell, a first heat radiation fan, a second heat radiation fan and a bottom heat radiation fan;
The LCD screen is arranged in the optical machine shell, the optical machine shell is provided with a heat dissipation air duct passing through two sides of the LCD screen, the heat dissipation air duct is provided with an air inlet, a first air outlet and a second air outlet which are communicated with the outside, the air inlet and the first air outlet are positioned at two ends of the heat dissipation air duct which are opposite in the horizontal direction, and the second air outlet is positioned at the bottom of the heat dissipation air duct in the vertical direction;
The air outlet of the first heat dissipation fan is communicated with the air inlet through a first air guide structure, the air inlet of the second heat dissipation fan is communicated with the first air outlet through a second air guide structure, and the bottom heat dissipation fan is arranged at the second air outlet.
The multi-fan radiating open type optical machine can radiate heat in a low-cost mode through the design of the air duct and the mutual cooperation of serial fans under the condition that a semiconductor refrigerating sheet, a large number of radiators, liquid cooling and other radiating modes are not used, so that air flow interference among fans is avoided, the radiating efficiency is improved, the overall power consumption and the volume are reduced, economy and high efficiency are realized, safe and stable operation is ensured, and the multi-fan radiating open type optical machine can be widely applied to various projectors.
As an implementation mode, the multi-fan radiating open-type optical engine further comprises a light source module and a light source radiator for radiating the light source module, the light source module is used for emitting light rays to the LCD screen, the air outlet direction of the bottom radiating fan faces to the light source module, a third air guide structure is arranged at the air outlet of the second radiating fan and used for guiding air to the light source radiator.
As an implementation manner, the multi-fan radiating open type optical engine further comprises a power panel, and the power panel is arranged adjacent to the air outlet of the bottom radiating fan.
As an implementation mode, the light source module includes LED light source, light funnel and light funnel casing, be equipped with the opening corresponding to on the light machine casing the lateral wall of LCD screen, the light funnel casing install in the opening part, the light funnel set up in the light funnel casing, the light outlet of light funnel orientation the LCD screen, the inlet of light funnel set up in the LED light source.
As an embodiment, the light source radiator comprises a cold end radiator and a hot end radiator which are connected to conduct heat, the cold end radiator is attached to the LED light source, the third air guiding structure is used for guiding air to the cold end radiator, and the hot end radiator is located on one side of the cold end radiator.
As an implementation manner, the multi-fan heat dissipation open type optical engine further comprises a third heat dissipation fan, wherein the third heat dissipation fan is arranged on one side of the hot end radiator and is used for cooling the hot end radiator.
As an implementation manner, the third heat dissipation fan is located between the hot end radiator and the bottom heat dissipation fan, and an air outlet of the third heat dissipation fan faces the hot end radiator.
As an implementation mode, the first heat radiation fan, the second heat radiation fan and the bottom heat radiation fan are all vortex fans.
The application relates to an LCD projector, which comprises a shell and a multi-fan radiating open type optical machine arranged in the shell, wherein a plurality of ventilation holes are formed in the shell.
As an embodiment, a filter screen is provided at the vent hole, and the filter screen is used for filtering air passing through the vent hole.
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 view of a multi-fan heat dissipation open-type optical engine according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a multi-fan heat dissipation open-type optical engine according to another view angle;
FIG. 3 is a schematic horizontal cross-section of a multi-fan heat dissipation open-type optical engine according to an embodiment of the present application;
FIG. 4 is a schematic vertical cross-section of a multi-fan heat dissipation open-ended optical engine according to an embodiment of the present application;
FIG. 5 is a schematic diagram of an LCD projector according to an embodiment of the application;
reference numerals illustrate:
1. The light engine comprises a light engine shell, 10, a heat dissipation air duct, 11, an air inlet, 12, a first air outlet, 13, a second air outlet, 14, a first air guide structure, 15, a second air guide structure, 16, a third air guide structure, 21, a first heat dissipation fan, 22, a second heat dissipation fan, 23, a third heat dissipation fan, 24, a bottom heat dissipation fan, 3, an LCD screen, 4, a light source module, 41, an LED light source, 42, a light funnel, 43, a light funnel shell, 5, a light source radiator, 51, a cold end radiator, 52, a hot end radiator, 6, a power panel, 7, a shell, 71 and a vent hole.
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, the present embodiment provides a multi-fan heat dissipation open-type optical engine, which includes an optical engine housing 1, a first heat dissipation fan 21, a second heat dissipation fan 22, and a bottom heat dissipation fan 24.
The LCD screen 3 is installed in the optical machine housing 1, and the LCD screen 3 is used for displaying image information, and is used as the most main heating element in the optical machine, so that the heat dissipation effect directly influences the operation effect of the whole machine. In this embodiment, the optical engine housing 1 is formed with a heat dissipation air duct 10 passing through two sides of the LCD panel 3, the heat dissipation air duct 10 has an air inlet 11, a first air outlet 12 and a second air outlet 13, which are communicated with the outside, wherein the air inlet 11 and the first air outlet 12 are located at two opposite ends of the heat dissipation air duct 10 in the horizontal direction, and the second air outlet 13 is located at the bottom of the heat dissipation air duct 10 in the vertical direction.
The air outlet of the first heat dissipation fan 21 is communicated with the air inlet 11 through a first air guide structure 14, the air inlet 11 of the second heat dissipation fan 22 is communicated with the first air outlet 12 through a second air guide structure 15, and the bottom heat dissipation fan 24 is installed at the second air outlet 13. When the optical engine is in operation, the first heat dissipation fan 21 can suck external air and blow the air into the heat dissipation air duct 10 through the first air guide structure 14, and when the air flows through the two sides of the LCD screen 3, the air absorbs heat and heats up to take away heat of the LCD screen 3, and a part of the heated air is sucked from the first air outlet 12 by the second heat dissipation fan 22 along the horizontal direction to be discharged
The other part of the air is sucked from the second air outlet 13 along the vertical direction by the bottom cooling fan 24 and is discharged out of the air machine housing 1, so that air can continuously flow into the cooling air duct 10 and flow out of the cooling air duct 10 along the horizontal direction and the vertical direction, and the LCD screen 3 is efficiently cooled.
It can be appreciated that by the above arrangement, when air flows into the heat dissipation air duct 10, air can uniformly pass through the LCD screen 3, so that the heat dissipation area is greatly increased, and the air output of the heat dissipation air duct 10 is increased by two heat dissipation fans, and the air input is correspondingly increased under the action of pressure, so that the air output of all fans can be increased by such an arrangement, the efficiency of the fans is utilized to the greatest extent, and the temperature of the LCD screen 3 and other components is effectively reduced. Therefore, the multi-fan heat dissipation open type optical engine of the embodiment can enhance the heat dissipation effect, and simultaneously ensure the compact internal structure of the optical engine housing 1, save the internal space, and respectively rapidly exhaust the air of the heat dissipation air duct 10 by the second heat dissipation fan 22 and the bottom heat dissipation fan 24, so as to ensure the air flow speed to be at the optimal value.
The multi-fan radiating open type optical machine can radiate heat in a low-cost mode through the design of the air duct and the mutual cooperation of serial fans under the condition that a semiconductor refrigerating sheet, a large number of radiators, liquid cooling and other radiating modes are not used, so that air flow interference among fans is avoided, the radiating efficiency is improved, the overall power consumption and the volume are reduced, economy and high efficiency are realized, safe and stable operation is ensured, and the multi-fan radiating open type optical machine can be widely applied to various projectors.
Specifically, the open-type optical engine of the present embodiment further includes a power board 6, where the power board 6 is used to provide power for the heat dissipation fan and the LCD screen 3. The power panel 6 is adjacent to the air outlet of the bottom cooling fan 24, so that part of air exhausted by the bottom cooling fan 24 can also cool the power panel 6, and it can be seen that through reasonable arrangement of the positions of the components, the overall cooling efficiency can be improved under the number of the existing cooling fans.
Specifically, the open-type optical engine of the present embodiment further includes a light source module 4 and a light source radiator 5 for radiating heat from the light source module 4, where the light source module 4 is configured to emit light to the LCD screen 3. The air outlet direction of the bottom cooling fan 24 faces the light source module 4, so that all components of the optical machine are reasonably distributed, the air outlet of the second cooling fan 22 is provided with a third air guide structure 16, the third air guide structure 16 is used for guiding air to the light source radiator 5, and therefore, part of heat of the light source radiator 5 can be taken away by air exhausted by the second cooling fan 22, and the heat dissipation efficiency of the light source radiator 5 is improved. In this embodiment, the first air guiding structure 14, the second air guiding structure 15 and the third air guiding structure 16 are all part of the optical engine housing 1, and the air guiding structures are formed by matching a plurality of walls.
The light source module 4 in this embodiment includes an LED light source 41, a light funnel 42, and a light funnel housing 43, an opening is disposed on the light machine housing 1 corresponding to the side wall of the LCD screen 3, the light funnel housing 43 is disposed at the opening, the light funnel 42 is disposed in the light funnel housing 43, a light outlet of the light funnel 42 faces the LCD screen 3, and a light inlet of the light funnel 42 is disposed in the LED light source 41. So arranged, the light source module 4 is convenient to install.
Preferably, the light source radiator 5 includes a cold end radiator 51 and a hot end radiator 52 connected to conduct heat, the cold end radiator 51 is attached to the LED light source 41, the third air guiding structure 16 is used for guiding air to the cold end radiator 51, and the hot end radiator 52 is located at one side of the cold end radiator 51. That is, the air discharged from the second heat dissipating fan 22 takes away the heat of the cold end heat sink 51, thereby improving the heat dissipating efficiency of the light source heat sink 5.
Preferably, the multi-fan heat dissipation open-type optical engine of this embodiment further includes a third heat dissipation fan 23, where the third heat dissipation fan 23 is disposed on one side of the hot end heat dissipation device 52 and is used for cooling the hot end heat dissipation device 52, so that heat of the hot end heat dissipation device 52 can be quickly taken away, and normal operation of the light source module 4 is ensured.
The third heat dissipation fan 23 is located between the hot end radiator 52 and the bottom heat dissipation fan 24, and an air outlet of the third heat dissipation fan 23 faces the hot end radiator 52, so that a part of air discharged by the bottom heat dissipation fan 24 is directly sucked by the third heat dissipation fan 23 and blown to the hot end radiator 52 for heat dissipation, and another part of air is sucked by the third heat dissipation fan 23 and blown to the hot end radiator 52 for heat dissipation after heat is taken away by the power panel 6. The arrangement can enable the air outside the optical engine shell 1 to flow stably, and the position layout is reasonable, and the heat dissipation efficiency is high.
In order to improve the space utilization of the open optical machine of the present embodiment, preferably, in this embodiment, the first heat dissipation fan 21, the second heat dissipation fan 22, and the bottom heat dissipation fan 24 are all vortex fans, and the third heat dissipation fan 23 is an axial flow fan.
The present embodiment also provides an LCD projector, which includes a housing 7 and the multi-fan heat dissipation open type optical engine as described above installed in the housing 7, and a plurality of ventilation holes 71 are provided on the housing 7. The ventilation hole 71 can be used for air conveyed by the first heat dissipation fan 21, the second heat dissipation fan 22, the third heat dissipation fan 23 and the bottom heat dissipation fan 24 to flow, and the projector of the open type optical machine is beneficial to miniaturization design, and has good heat dissipation effect, low power consumption and low cost.
Preferably, a filter screen is provided at the vent hole 71 for filtering air passing through the vent hole 71. The air entering the inside of the projector can be prevented from polluting the LCD screen 3, and the service life is prolonged.
The above examples merely represent a few embodiments of the present utility model, which are described in more 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. A multi-fan heat dissipation open-ended machine, comprising:
The device comprises an optical machine shell, a first heat radiation fan, a second heat radiation fan and a bottom heat radiation fan;
The LCD screen is arranged in the optical machine shell, the optical machine shell is provided with a heat dissipation air duct passing through two sides of the LCD screen, the heat dissipation air duct is provided with an air inlet, a first air outlet and a second air outlet which are communicated with the outside, the air inlet and the first air outlet are positioned at two ends of the heat dissipation air duct which are opposite in the horizontal direction, and the second air outlet is positioned at the bottom of the heat dissipation air duct in the vertical direction;
The air outlet of the first heat dissipation fan is communicated with the air inlet through a first air guide structure, the air inlet of the second heat dissipation fan is communicated with the first air outlet through a second air guide structure, and the bottom heat dissipation fan is arranged at the second air outlet.
2. The multi-fan heat dissipation open-ended machine according to claim 1, wherein:
the LED display device comprises an LCD screen, and is characterized by further comprising a light source module and a light source radiator for radiating the light source module, wherein the light source module is used for emitting light rays to the LCD screen, the air outlet direction of the bottom radiating fan faces to the light source module, a third air guide structure is arranged at the air outlet of the second radiating fan and used for guiding air to the light source radiator.
3. The multi-fan heat dissipation open-ended machine according to claim 1, wherein:
The cooling fan is characterized by further comprising a power panel, wherein the power panel is adjacent to the air outlet of the bottom cooling fan.
4. The multi-fan heat dissipation open-ended machine according to claim 2, wherein:
The light source module comprises an LED light source, a light funnel and a light funnel shell, wherein an opening is formed in the side wall of the light machine 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.
5. The multi-fan heat dissipation open-ended machine according to claim 4, wherein:
The light source radiator comprises a cold end radiator and a hot end radiator which are connected to conduct heat, the cold end radiator is attached to the LED light source, the third air guide structure is used for guiding air to the cold end radiator, and the hot end radiator is located on one side of the cold end radiator.
6. The multi-fan heat dissipation open-ended machine according to claim 5, wherein:
The cooling device further comprises a third cooling fan, wherein the third cooling fan is arranged on one side of the hot end radiator and used for cooling the hot end radiator.
7. The multi-fan heat dissipation open-ended machine according to claim 6, wherein:
the third heat dissipation fan is positioned between the hot end radiator and the bottom heat dissipation fan, and an air outlet of the third heat dissipation fan faces the hot end radiator.
8. The multi-fan open-heat dissipation optical engine as recited in any one of claims 1-7, wherein the first heat dissipation fan, the second heat dissipation fan, and the bottom heat dissipation fan are all vortex fans.
9. An LCD projector comprising a housing and a multi-fan heat dissipation open-type optical engine according to any one of claims 1 to 8 mounted in the housing, wherein a plurality of ventilation holes are provided in the housing.
10. The LCD projector of claim 9, wherein:
The vent hole is provided with a filter screen, and the filter screen is used for filtering air passing through the vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422554541.0U CN223244959U (en) | 2024-10-22 | 2024-10-22 | A multi-fan heat dissipation open optical machine and LCD projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422554541.0U CN223244959U (en) | 2024-10-22 | 2024-10-22 | A multi-fan heat dissipation open optical machine and LCD projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223244959U true CN223244959U (en) | 2025-08-19 |
Family
ID=96729711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422554541.0U Active CN223244959U (en) | 2024-10-22 | 2024-10-22 | A multi-fan heat dissipation open optical machine and LCD projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223244959U (en) |
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2024
- 2024-10-22 CN CN202422554541.0U patent/CN223244959U/en active Active
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