CN222105814U - A dual-fan direct-projection enclosed optical machine - Google Patents
A dual-fan direct-projection enclosed optical machine Download PDFInfo
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- CN222105814U CN222105814U CN202420739442.7U CN202420739442U CN222105814U CN 222105814 U CN222105814 U CN 222105814U CN 202420739442 U CN202420739442 U CN 202420739442U CN 222105814 U CN222105814 U CN 222105814U
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Abstract
本实用新型涉及一种双风扇直投式密闭光机，包括：壳体，内部形成从上到下依次布置的第一腔体、第二腔体和第三腔体；光学器件，设置于第二腔体中，包括沿光路依次间隔布置的第一菲涅尔透镜、隔热玻璃、LCD屏和第二菲涅尔透镜，第一菲涅尔透镜与隔热玻璃之间形成第一散热通道，隔热玻璃与LCD屏之间形成第二散热通道，LCD屏与第二菲涅尔透镜之间形成第三散热通道；内循环风扇；热交换模组，包括冷面散热器和热面散热器；外循环风扇，用于对热面散热器进行降温。本申请的双风扇直投式密闭光机设置有第一散热通道、第二散热通道和第三散热通道来对光学器件进行散热，冷空气同时经过三个散热通道可有效地降低光学器件的温度。
The utility model relates to a dual-fan direct-projection sealed optical machine, comprising: a housing, inside which a first cavity, a second cavity and a third cavity are formed, which are arranged in sequence from top to bottom; an optical device, which is arranged in the second cavity, comprises a first Fresnel lens, a heat-insulating glass, an LCD screen and a second Fresnel lens, which are arranged in sequence along the optical path, a first heat dissipation channel is formed between the first Fresnel lens and the heat-insulating glass, a second heat dissipation channel is formed between the heat-insulating glass and the LCD screen, and a third heat dissipation channel is formed between the LCD screen and the second Fresnel lens; an internal circulation fan; a heat exchange module, comprising a cold surface radiator and a hot surface radiator; an external circulation fan, which is used to cool the hot surface radiator. The dual-fan direct-projection sealed optical machine of the present application is provided with a first heat dissipation channel, a second heat dissipation channel and a third heat dissipation channel to dissipate heat for the optical device, and cold air passing through the three heat dissipation channels simultaneously can effectively reduce the temperature of the optical device.
Description
Technical Field
The utility model relates to the technical field of projectors, in particular to a double-fan direct-projection type airtight optical engine.
Background
At present, the user is not satisfied with the existing projector form, so that the light path design of direct projection is proposed, the LCD projector form is changed into a straight barrel form from the traditional square, the brightness is also increased due to the fact that one reflecting mirror is fewer, the heat of the direct projection type LCD light machine is much larger than that of the traditional LCD light machine, the LCD light machine is divided into an open type light machine and a closed type light machine, the load of a heat dissipation system is increased when the dustproof effect is satisfied by the closed type light machine, and the heat dissipation efficiency of the direct projection type closed light machine is a problem to be solved. Therefore, it is necessary to provide a direct-casting type sealed optical engine with higher heat dissipation efficiency.
Disclosure of utility model
Based on the above, the utility model aims to overcome the defects of the prior art and provide a double-fan direct-casting type closed optical machine.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a dual fan direct-throw type enclosed optical engine, comprising:
The device comprises a shell, wherein a first cavity, a second cavity and a third cavity which are sequentially arranged from top to bottom are formed in the shell, a first air outlet and a first air inlet which are used for communicating the first cavity with the second cavity are formed in the shell, and a second air outlet and a second air inlet which are used for communicating the second cavity with the third cavity are also formed in the shell;
The optical device is arranged in the second cavity and comprises a first Fresnel lens, heat-insulating glass, an LCD screen and a second Fresnel lens which are sequentially arranged at intervals along a light path, a first heat dissipation channel is formed between the first Fresnel lens and the heat-insulating glass, a second heat dissipation channel is formed between the heat-insulating glass and the LCD screen, a third heat dissipation channel is formed between the LCD screen and the second Fresnel lens, and the first air outlet is communicated with the second air inlet through the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel respectively;
an inner circulation fan disposed in the first cavity;
The heat exchange module comprises a cold-face radiator and a hot-face radiator, the cold-face radiator is arranged in the third cavity, air entering from the second air inlet is discharged from the second air outlet after passing through the cold-face radiator, the hot-face radiator is arranged outside the shell, and the cold-face radiator and the hot-face radiator are connected to conduct heat;
And the outer circulating fan is arranged on the shell and used for cooling the hot-surface radiator.
As an implementation mode, the double-fan direct-casting type closed optical machine further comprises a light source module arranged on the shell, wherein the light source module comprises an LED light source and a light funnel, and light rays emitted by the LED light source enter the first Fresnel lens after passing through the light funnel.
As an implementation mode, the double-fan direct-casting type closed optical engine further comprises an LED light source radiator, wherein the LED light source radiator is arranged on the back of the LED light source, and the outer circulation fan is further used for cooling the LED light source radiator.
As an embodiment, the cold-face radiator and the hot-face radiator are integrally formed.
As one embodiment, the cold face heat sink includes a plurality of first heat sinks disposed at intervals, and the hot face heat sink includes a plurality of second heat sinks disposed at intervals.
As an implementation mode, the double-fan direct-projection type closed optical engine further comprises a projection module, wherein the projection module comprises a plurality of projection lenses, and light rays emitted from the second Fresnel lens are emitted after directly passing through the plurality of projection lenses.
As one embodiment, the housing has a fan mounting portion in which the external circulation fan is disposed, and the fan mounting portion has a ventilation opening and a ventilation duct extending to the LED light source radiator.
As one embodiment, the outer wall of the shell is provided with a plurality of buckles and threaded connection parts.
As one embodiment, the internal circulation fan is a turbo fan.
As one embodiment, the external circulation fan is a turbo fan.
The double-fan direct-casting type airtight optical machine is provided with the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel to dissipate heat of the optical device, cold air can effectively reduce the temperature of the optical device through the three heat dissipation channels at the same time, the double-fan is adopted for cooling, heat dissipation efficiency is high, the double-fan direct-casting type airtight optical machine is good in silencing effect, dust and dirt can be prevented from entering the shell to pollute the optical device, the occurrence of black spots of an LCD screen is effectively avoided, and user experience is improved.
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 a dual-fan direct-throw type hermetic optical engine in an embodiment of the present application;
FIG. 2 is a schematic diagram of the internal structure of a dual-fan direct-throw type hermetic optical engine according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a dual-fan direct-throw type hermetic optical engine according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a heat exchange module according to an embodiment of the present application;
Reference numerals illustrate:
1. The LED projection lens comprises a shell, 11, a first cavity, 12, a second cavity, 13, a third cavity, 14, a first air outlet, 15, a first air inlet, 16, a second air outlet, 17, a second air inlet, 18, a fan mounting part, 181, a vent, 182, an air duct, 191, a buckle, 192, a threaded connection part, 21, a first Fresnel lens, 22, heat insulation glass, 23, an LCD screen, 24, a second Fresnel lens, 201, a first heat dissipation channel, 202, a second heat dissipation channel, 203, a third heat dissipation channel, 3, an inner circulation fan, 41, a cold face radiator, 42, a hot face radiator, 43, a heat conducting fin, 5, an outer circulation fan, 61, an LED light source, 62, a light funnel, 63, a funnel mounting shell, 7, an LED light source radiator, 81, a projection lens and 82.
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 4, the present embodiment provides a dual-fan direct-casting type hermetic optical engine, which includes a housing 1, an optical device, an inner circulation fan 3, a heat exchange module, and an outer circulation fan 5.
The inside first cavity 11, second cavity 12 and the third cavity 13 that form from the top down to arrange in proper order of casing 1, be provided with in the casing 1 will first air outlet 14 and the first air intake 15 that first cavity 11 and second cavity 12 are linked together, still be provided with in the casing 1 will second air outlet 16 and the second air intake 17 that second cavity 12 and third cavity 13 are linked together.
The optical device is arranged in the second cavity 12, the optical device comprises a first fresnel lens 21, a heat-insulating glass 22, an LCD screen 23 and a second fresnel lens 24 which are sequentially arranged at intervals along a light path, a first heat dissipation channel 201 is formed between the first fresnel lens 21 and the heat-insulating glass 22, a second heat dissipation channel 202 is formed between the heat-insulating glass 22 and the LCD screen 23, a third heat dissipation channel 203 is formed between the LCD screen 23 and the second fresnel lens 24, and the first air outlet 14 is respectively communicated with the second air inlet 17 through the first heat dissipation channel 201, the second heat dissipation channel 202 and the third heat dissipation channel 203. The internal circulation fan 3 is disposed in the first cavity 11, the air in the housing 1 may circulate under the driving of the internal circulation fan 3, in this embodiment, when the internal circulation fan 3 works, the air in the first cavity 11 may be discharged from the first air outlet 14, and enter the second air inlet 17 after passing through the first heat dissipation channel 201, the second heat dissipation channel 202 and the third heat dissipation channel 203 respectively, and then enter the second cavity 12 from the second air outlet 16 after passing through the third cavity 13, and finally flow back into the first cavity 11 through the first air inlet 15.
The heat exchange module comprises a cold-face radiator 41 and a hot-face radiator 42, the cold-face radiator 41 is arranged in the third cavity 13, air entering from the second air inlet 17 passes through the cold-face radiator 41 and then is discharged from the second air outlet 16, the hot-face radiator 42 is arranged outside the shell 1, and the cold-face radiator 41 and the hot-face radiator 42 are connected to conduct heat.
The outer circulation fan 5 is disposed on the housing 1, and is used for cooling the hot-surface radiator 42.
Since the first fresnel lens 21, the insulating glass 22, the LCD screen 23 and the second fresnel lens 24 are all at a higher temperature (where the heat generated by the LCD screen 23 is the highest) when the optical engine is in operation, the temperature in the second cavity 12 is higher. When the internal circulation fan 3 is started, the cold air in the first cavity 11 flows into the first heat dissipation channel 201, the second heat dissipation channel 202 and the third heat dissipation channel 203 through the first air outlet 14, so that the first fresnel lens 21, the heat insulation glass 22, the LCD screen 23 and the second fresnel lens 24 can be effectively cooled, the cold air is subjected to heat exchange to become hot air, the hot air enters the third cavity 13 through the second air inlet 17 and flows through the cold surface radiator 41 to be subjected to heat exchange to be cooled to become cold air, and the cold air flows back into the first cavity 11 through the second air outlet 16, the second cavity 12 and the first air inlet 15 in sequence, so that the internal air cooling circulation is formed, and the heat of the first fresnel lens 21, the heat insulation glass 22, the LCD screen 23 and the second fresnel lens 24 can be rapidly taken away. Since the cold-face radiator 41 is heated during heat exchange, the hot-face radiator 42 outside the casing 1 needs to be connected to absorb heat of the cold-face radiator 41, and the hot-face radiator 42 is cooled by the external circulation fan 5, so that the cold-face radiator 41 can be in a low-temperature state, rapid heat dissipation of an optical device is effectively realized, normal operation of the LCD screen 23 is effectively ensured, and the service life of the LCD screen 23 is prolonged.
According to the technical scheme, the double-fan direct-casting type airtight optical machine is provided with the first heat dissipation channel 201, the second heat dissipation channel 202 and the third heat dissipation channel 203 to dissipate heat of optical devices, cold air can effectively reduce the temperature of the optical devices through the three heat dissipation channels at the same time, the double-fan is adopted to cool down, heat dissipation efficiency is high, the double-fan direct-casting type airtight optical machine is good in silencing effect, dust and dirt can be prevented from entering the shell 1 to pollute the optical devices, the occurrence of black spots of the LCD screen 23 is effectively avoided, and user experience is improved.
The direct-projection type closed optical engine of the embodiment further comprises a light source module and a projection module which are arranged on the shell 1. The light source module includes an LED light source 61 and a light funnel 62, and light emitted by the LED light source 61 passes through the light funnel 62 and enters the first fresnel lens 21. Specifically, the light funnel 62 is mounted in a funnel mounting case 63, the funnel mounting case 63 is disposed at a side portion of the housing 1, an opening is disposed at a position corresponding to the first fresnel lens 21 at the side portion of the housing 1, a light outlet of the light funnel 62 corresponds to the opening of the housing 1, and a light inlet of the light funnel 62 is provided with the LED light source 61. The projection module comprises a plurality of projection lenses 81, and light rays emitted from the second fresnel lenses 24 are emitted directly after passing through the plurality of projection lenses 81, wherein the projection module specifically further comprises a projection lens barrel 82, the plurality of projection lenses are arranged in the projection lens barrel 82, the projection lens barrel 82 is detachably arranged on the side part of the shell 1, and therefore the light rays emitted by the LED light sources 61 are emitted from the projection module after passing through the light funnel 62, the first fresnel lenses 21, the heat-insulating glass 22, the LCD screen 23 and the second fresnel lenses 24 in sequence, so that projection images are formed.
Preferably, the direct-casting type closed optical engine of the embodiment further includes an LED light source radiator 7, where the LED light source radiator 7 is disposed on the back of the LED light source 61, so as to effectively ensure the normal operation of the LED light source 61 and prolong the service life of the LED light source 61. The external circulation fan 5 is further used for cooling the LED light source radiator 7, so that the LED light source radiator 7 and the hot-face radiator 42 can be simultaneously cooled by a single fan, which is beneficial to energy saving and consumption reduction, manufacturing cost reduction and noise reduction. Specifically, the housing 1 has a fan mounting portion 18, the external circulation fan 5 is disposed in the fan mounting portion 18, and the fan mounting portion 18 has a ventilation opening 181 and a ventilation duct 182 extending to the LED light source radiator 7. The external circulation fan 5 sucks air passing through the hot-face radiator 42 through the ventilation opening 181, and sends the air toward the LED light source radiator 7 through the ventilation duct 182, thereby realizing external air circulation.
In this embodiment, the inner circulation fan 3 and the outer circulation fan 5 are both turbo fans.
In some embodiments, the cold-face radiator and the hot-face radiator are integrally formed, and the heat exchange module is an integral aluminum section radiator, so that the manufacturing is convenient. In some embodiments, the heat exchange module further includes a heat conducting fin 43, and the cold-side radiator 41 is connected to the hot-side radiator 42 through the heat conducting fin 43, so as to improve heat conduction efficiency between the cold-side radiator 41 and the hot-side radiator 42, and facilitate heat dissipation. Specifically, the cold-side heat sink 41 includes a plurality of first heat sinks disposed at intervals, and the hot-side heat sink 42 includes a plurality of second heat sinks disposed at intervals, thereby facilitating the improvement of the heat exchange area and greatly improving the heat dissipation effect.
Preferably, in this embodiment, a plurality of buckles 191 and threaded connection portions 192 are disposed on the outer wall of the housing 1, and the threaded connection portions 192 are specifically threaded holes, so that the optical machine can be conveniently installed in the projector through the arrangement of the buckles 191 and the threaded holes.
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 inventive manual self-centering vise. 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. The utility model provides a two fans direct-casting type airtight optical engine which characterized in that includes:
The device comprises a shell, wherein a first cavity, a second cavity and a third cavity which are sequentially arranged from top to bottom are formed in the shell, a first air outlet and a first air inlet which are used for communicating the first cavity with the second cavity are formed in the shell, and a second air outlet and a second air inlet which are used for communicating the second cavity with the third cavity are also formed in the shell;
The optical device is arranged in the second cavity and comprises a first Fresnel lens, heat-insulating glass, an LCD screen and a second Fresnel lens which are sequentially arranged at intervals along a light path, a first heat dissipation channel is formed between the first Fresnel lens and the heat-insulating glass, a second heat dissipation channel is formed between the heat-insulating glass and the LCD screen, a third heat dissipation channel is formed between the LCD screen and the second Fresnel lens, and the first air outlet is communicated with the second air inlet through the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel respectively;
an inner circulation fan disposed in the first cavity;
The heat exchange module comprises a cold-face radiator and a hot-face radiator, the cold-face radiator is arranged in the third cavity, air entering from the second air inlet is discharged from the second air outlet after passing through the cold-face radiator, the hot-face radiator is arranged outside the shell, and the cold-face radiator and the hot-face radiator are connected to conduct heat;
And the outer circulating fan is arranged on the shell and used for cooling the hot-surface radiator.
2. The double-fan direct-throw type airtight optical machine according to claim 1, wherein:
The LED light source comprises a shell, and is characterized by further comprising a light source module arranged on the shell, wherein the light source module comprises an LED light source and a light funnel, and light rays emitted by the LED light source enter the first Fresnel lens after passing through the light funnel.
3. The double-fan direct-throw type airtight optical machine according to claim 2, wherein:
The LED light source cooling device comprises an LED light source, and is characterized by further comprising an LED light source radiator, wherein the LED light source radiator is arranged on the back of the LED light source, and the outer circulation fan is further used for cooling the LED light source radiator.
4. The double-fan direct-throw type airtight optical machine according to claim 1, wherein:
the cold-face radiator and the hot-face radiator are integrally formed.
5. The double-fan direct-throw type airtight optical machine according to claim 4, wherein:
The cold-face radiator comprises a plurality of first radiating fins arranged at intervals, and the hot-face radiator comprises a plurality of second radiating fins arranged at intervals.
6. The double-fan direct-throw type airtight optical machine according to claim 1, wherein:
the light beam emitted from the second Fresnel lens directly passes through the plurality of projection lenses and then is emitted.
7. The double-fan direct-throw type airtight light machine according to claim 3, wherein:
the housing has a fan mounting portion in which the outer circulation fan is disposed, and the fan mounting portion is provided with a ventilation opening and a ventilation duct extending to the LED light source radiator.
8. The double-fan direct-throw type sealed optical machine according to any one of claims 1 to 7, wherein:
A plurality of buckles and threaded connection parts are arranged on the outer wall of the shell.
9. The double-fan direct-throw type airtight light machine according to claim 8, wherein:
the internal circulation fan is a turbo fan.
10. The double-fan direct-throw type airtight light machine according to claim 9, wherein:
The outer circulation fan is a turbo fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420739442.7U CN222105814U (en) | 2024-04-10 | 2024-04-10 | A dual-fan direct-projection enclosed optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420739442.7U CN222105814U (en) | 2024-04-10 | 2024-04-10 | A dual-fan direct-projection enclosed optical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222105814U true CN222105814U (en) | 2024-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420739442.7U Active CN222105814U (en) | 2024-04-10 | 2024-04-10 | A dual-fan direct-projection enclosed optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222105814U (en) |
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2024
- 2024-04-10 CN CN202420739442.7U patent/CN222105814U/en active Active
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