CN220305615U - Efficient heat-dissipation closed optical machine - Google Patents
Efficient heat-dissipation closed optical machine Download PDFInfo
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- CN220305615U CN220305615U CN202320544217.3U CN202320544217U CN220305615U CN 220305615 U CN220305615 U CN 220305615U CN 202320544217 U CN202320544217 U CN 202320544217U CN 220305615 U CN220305615 U CN 220305615U
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- 230000017525 heat dissipation Effects 0.000 title claims description 22
- 230000003287 optical effect Effects 0.000 title description 24
- 238000003384 imaging method Methods 0.000 claims abstract description 22
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 40
- 239000011521 glass Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 206010027146 Melanoderma Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The application provides a high-efficient radiating closed ray apparatus, closed ray apparatus includes: the device comprises a shell, an internal circulating fan, a light source assembly, an imaging assembly and a heat exchange module; the internal circulation fan is arranged in the shell, an internal circulation air duct communicated with an air inlet and an air outlet of the internal circulation fan is formed in the shell, the light source assembly comprises an LED light source and a light funnel arranged in the internal circulation air duct, and the imaging assembly comprises an LCD screen positioned in the internal circulation air duct; the heat exchange module comprises a cold-face radiator and a hot-face radiator, the cold-face radiator is arranged in the internal circulation air duct, and the hot-face radiator is arranged outside the shell. The utility model discloses a closed ray apparatus dispels the heat to LCD screen and light funnel through the mode of inner loop, and its radiating effect is good, and radiating efficiency is high, and silence is effectual, but also can prevent that dust and dirt from getting into in the casing and polluting the LCD screen, is favorable to improving user experience.
Description
Technical Field
The application relates to the technical field of heat dissipation of LCD projectors, in particular to a high-efficiency heat dissipation closed type optical machine.
Background
The key components of the LCD projector are optical machines, the optical machines generally comprise an LCD screen, a light source, a light funnel and the like, and the main imaging process is that light rays emitted by the light source are condensed by the light funnel and then penetrate through the LCD screen, so that image light rays are formed.
Since the light transmittance of the LCD screen is not high, the LCD screen generates a lot of heat when the optical machine works. The existing optical machine is generally designed to be closed so as to form an internal circulation air channel inside, and air in the internal circulation air channel is driven by a fan to flow through a radiator so as to cool the LCD screen. However, during the operation of the optical engine, the optical funnel also absorbs a large amount of heat, so that the temperature rises, which not only affects the durability of the components, but also affects the safety of the whole optical engine, but most of the optical engines on the market only consider the heat dissipation of the LCD screen, but not consider the heat dissipation of the optical funnel. Therefore, it is necessary to design a light machine capable of radiating the light funnel.
Disclosure of Invention
The present application is directed to a sealed optical engine with efficient heat dissipation, so as to solve the drawbacks and shortcomings in the prior art.
The utility model provides a high-efficient radiating closed ray apparatus, include: the device comprises a shell, an internal circulating fan, a light source assembly, an imaging assembly and a heat exchange module;
the inner circulating fan is arranged in the shell, an inner circulating air duct communicated with an air inlet and an air outlet of the inner circulating fan is formed in the shell, the light source assembly comprises an LED light source and a light funnel arranged in the inner circulating air duct, a light inlet of the light funnel extends out of the shell, the LED light source is arranged at a light inlet of the light funnel, the imaging assembly is arranged on a light outlet side of the light funnel, and the imaging assembly comprises an LCD screen positioned in the inner circulating air duct; the heat exchange module comprises a cold-face radiator and a hot-face radiator, the cold-face radiator is arranged in the internal circulation air duct, and the hot-face radiator is arranged outside the shell and connected with the cold-face radiator to conduct heat.
Compared with the prior art, the embodiment of the application the closed ray apparatus dispels heat to LCD screen and light funnel through the mode of inner loop, and its radiating effect is good, and radiating efficiency is high, and silence is effectual, but also can prevent dust and dirt to get into in the casing and pollute the LCD screen, has stopped the appearance of LCD screen black spot effectively, is favorable to improving user experience.
In a preferred or alternative embodiment, the air inlet of the internal circulation fan is arranged opposite to the cold face radiator, and the air outlet of the internal circulation fan is arranged opposite to the LCD screen.
In a preferred or alternative embodiment, a first cavity, a second cavity and a third cavity are formed inside the casing, the first cavity is arranged at the top of the second cavity and is communicated with an air outlet of the internal circulation fan, the third cavity is arranged at the side part of the second cavity and is communicated with an air inlet of the internal circulation fan, the first cavity, the second cavity and the third cavity are sequentially communicated to form the internal circulation air duct, the imaging assembly is arranged in the first cavity, the light funnel is arranged in the second cavity, and the cold surface radiator is arranged in the third cavity.
In a preferred or alternative embodiment, the high-efficiency heat-dissipating enclosed light engine further includes an LED heat sink connected to a side of the LED light source facing away from the light funnel.
In a preferred or alternative embodiment, the efficient heat-dissipating enclosed optical engine further includes an external circulation fan, where the external circulation fan is disposed outside the casing and is used for cooling the LED radiator and the hot-surface radiator.
In a preferred or alternative embodiment, the efficient heat dissipation closed-type optical engine further comprises an outer circulation shell, wherein the outer circulation shell is installed outside the shell and encloses an outer circulation air duct with two open ends with the shell, and the hot-face radiator, the outer circulation fan and the LED radiator are sequentially arranged in the outer circulation air duct.
In a preferred or alternative embodiment, the imaging assembly further includes a first phenanthrene mirror, a heat-insulating glass, and a second phenanthrene mirror, where the first phenanthrene mirror, the heat-insulating glass, the LCD screen, and the second phenanthrene mirror are sequentially disposed along the light emitting direction of the light funnel, and the first phenanthrene mirror is covered on the light emitting port of the light funnel.
In a preferred or alternative embodiment, the efficient heat dissipation enclosed-type optical engine further includes a projection assembly, a projection cavity located at the top of the first cavity is further formed in the casing, the projection assembly is disposed in the projection cavity, and the projection assembly includes a reflector and a projection lens, and image light emitted from the imaging assembly is reflected by the reflector and then emitted from the projection lens.
In a preferred or alternative embodiment, the cold and hot face heat sinks are integrally formed.
For a better understanding and implementation, the present application is described in detail below with reference to the drawings.
Drawings
Fig. 1 is a schematic structural diagram of a closed optical engine in an embodiment of the present application;
FIG. 2 is a schematic view of a partial explosion of a closed ray apparatus according to an embodiment of the present application;
fig. 3 is a schematic diagram of an internal structure of a closed optical engine according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating air flow in an internal circulation duct of a closed-type optical engine according to an embodiment of the present disclosure;
reference numerals:
1. a housing; 11. an internal circulation air duct; 111. a first cavity; 112. a second cavity; 113. a third cavity; 12. a projection cavity; 2. an internal circulation fan; 31. an LED light source; 32. a light funnel; 41. a first phenanthrene mirror; 42. a heat insulating glass; 43. an LCD screen; 44. a second phenanthrene mirror; 51. a cold face heat sink; 52. a hot-side radiator; 6. an LED radiator; 7. an external circulation fan; 8. an outer circulation casing; 81. an outer circulation air duct; 91. a reflective mirror; 92. and a projection lens.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1 to 4, an embodiment of the present application provides a sealed optical engine with efficient heat dissipation, including: the device comprises a shell 1, an internal circulation fan 2, a light source assembly, an imaging assembly and a heat exchange module.
The inner circulating fan 2 is arranged in the casing 1, an inner circulating air duct 11 communicated with an air inlet and an air outlet of the inner circulating fan 2 is formed in the casing 1, the light source assembly comprises an LED light source 31 and a light funnel 32 arranged in the inner circulating air duct 11, a light inlet of the light funnel 32 extends out of the casing 1, the LED light source 31 is arranged at a light inlet of the light funnel 32, the imaging assembly is arranged at a light outlet side of the light funnel 32, and light emitted by the LED light source 31 passes through the imaging assembly after passing through the light funnel 32, so that image light is formed, and the imaging assembly comprises an LCD screen 43 arranged in the inner circulating air duct 11.
The heat exchange module comprises a cold-face radiator 51 and a hot-face radiator 52, the cold-face radiator 51 is arranged in the internal circulation air duct 11, and the hot-face radiator 52 is arranged outside the shell 1 and is connected with the cold-face radiator 51 to conduct heat.
Through the above arrangement, when the internal circulation fan 2 is started, the air in the internal circulation air duct 11 can be driven to circulate, and when the air flows, the air can flow through the cold surface radiator 51 to perform heat exchange so as to cool down to become cold air, and the cold air can cool down the LCD screen 43 and the light funnel 32 in the internal circulation air duct 11, rapidly take away the heat generated by the LCD screen 43 and the light funnel 32 and circulate in turn. Since the cold-face radiator 51 heats up during heat exchange, the hot-face radiator 52 outside the casing 1 needs to be connected to absorb heat of the cold-face radiator 51, so that the cold-face radiator 51 is in a low temperature state, thereby effectively realizing rapid heat dissipation of the LCD screen 43 and the light funnel 32, effectively ensuring normal operation and complete machine safety of the LCD screen 43 and the light funnel 32, and prolonging service lives of the LCD screen 43 and the light funnel 32.
The embodiment of the application the enclosed ray apparatus dispels the heat to LCD screen 43 and light funnel 32 through the mode of inner loop, and its radiating effect is good, and radiating efficiency is high, and silence is effectual, but also can prevent dust and dirt to get into in the casing and pollute LCD screen 43, has stopped the appearance of LCD screen 43 black spot effectively, is favorable to improving user experience.
In order to facilitate cooling of the hot-surface radiator 52, preferably, the enclosed optical engine further includes an external circulation fan 7, where the external circulation fan 7 is disposed outside the casing 1 and is used for cooling the hot-surface radiator 52, and the hot-surface radiator 52 is cooled by the external circulation fan 7, so that the cold-surface radiator 51 is in a low-temperature state.
Specifically, in this embodiment, the internal circulation fan 2 is a vortex fan. The air inlet of the internal circulation fan 2 is opposite to the cold surface radiator 51, and the air outlet of the internal circulation fan 2 is opposite to the LCD panel 43, so as to suck the cold air cooled by the cold surface radiator 51 and blow the cold air to the LCD panel 43, cool the LCD panel 43 with higher temperature, cool the light funnel 32 after the air passing through the LCD panel 43, and return to the cold surface radiator 51 for circulation, as shown in fig. 3 and 4. Thereby, the air suction efficiency can be improved, the air flow of the internal circulation duct 11 is facilitated, the cooling efficiency is improved, and the heat dissipation of the LCD screen 43 is facilitated. The PWM speed regulating function can be added in the internal circulation fan 2, and a temperature sensor is arranged in the internal circulation air duct 11, so that the internal circulation fan 2 can intelligently regulate speed at different temperatures, and the heat dissipation steady state of the internal circulation air duct 11 is maintained.
Specifically, in this embodiment, a first cavity 111, a second cavity 112 and a third cavity 113 are formed inside the casing 1, the first cavity 111 is disposed at the top of the second cavity 112 and is communicated with an air outlet of the internal circulation fan 2, the third cavity 113 is disposed at a side portion of the second cavity 112 and is communicated with an air inlet of the internal circulation fan 2, the first cavity 111, the second cavity 112 and the third cavity 113 are sequentially communicated to form the internal circulation duct 11, the imaging component is disposed in the first cavity 111, the light funnel 32 is disposed in the second cavity 112, and the cold surface radiator 51 is disposed in the third cavity 113. Through so setting, can make casing 1 inside rationally distributed, the air flow is convenient, and the air that inner loop fan 2 blown out returns to the air intake of inner loop fan 2 behind first cavity 111, second cavity 112 and third cavity 113 in proper order to realize the cooling to LCD screen 43 and light funnel 32.
Preferably, the enclosed optical engine further includes an LED heat sink 6, and the LED heat sink 6 is connected to a side of the LED light source 31 facing away from the light funnel 32. The radiator of the LED light source 31 can radiate heat of the LED light source 31 so as to effectively ensure the normal work of the LED light source 31 and prolong the service life of the LED light source 31. The external circulation fan 7 may be further used to cool the LED radiator 6, that is, the external circulation fan 7 of this embodiment may cool the LED radiator 6 and the hot-surface radiator 52 at the same time, which is beneficial to saving energy, reducing consumption, reducing manufacturing cost, and reducing noise. Specifically, in this embodiment, the air inlet of the external circulation fan 7 is disposed opposite to the hot-surface radiator 52, and the air outlet is disposed opposite to the LED radiator 6.
In order to enhance the external circulation heat dissipation effect, preferably, the enclosed optical engine of this embodiment further includes an external circulation casing 8, where the external circulation casing 8 is installed outside the casing 1 and encloses an external circulation air duct 81 with two open ends with the casing 1, and the hot-surface radiator 52, the external circulation fan 7, and the LED radiator 6 are sequentially disposed in the external circulation air duct 81.
Specifically, the imaging assembly of this embodiment further includes a first phenanthrene mirror 41, a heat-insulating glass 42, and a second phenanthrene mirror 44, where the first phenanthrene mirror 41, the heat-insulating glass 42, the LCD screen 43, and the second phenanthrene mirror 44 are sequentially disposed along the light emitting direction of the light funnel 32, and the first phenanthrene mirror 41 is covered on the light emitting opening of the light funnel 32.
Specifically, the enclosed optical engine according to this embodiment further includes a projection assembly, the housing 1 is further internally formed with a projection cavity 12 located at the top of the first cavity 111, the projection assembly is disposed in the projection cavity 12, and includes a reflective mirror 91 and a projection lens 92, and an image light emitted from the imaging assembly is reflected by the reflective mirror 91 and then emitted from the projection lens 92. Specifically, the second phenanthrene mirror 44 is sealed at the opening between the projection cavity 12 and the first cavity 111, and the light emitted by the LED light source 31 sequentially passes through the light funnel 32, the first phenanthrene mirror 41, the heat insulating glass 42, the LCD screen 43, the second phenanthrene mirror 44 and the reflective mirror 91, and then is emitted from the projection lens 92, so as to form a projection image.
Specifically, in this embodiment, the cold-face radiator 51 and the hot-face radiator 52 are integrally formed, so as to improve heat conduction efficiency between the cold-face radiator 51 and the hot-face radiator 52, and facilitate heat dissipation. The cold-side heat sink 51, the hot-side heat sink 52, and the LED heat sink 6 described in this embodiment each include a plurality of heat dissipation fins arranged at intervals.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (9)
1. The utility model provides a high-efficient radiating closed ray apparatus which characterized in that includes:
the device comprises a shell, an internal circulating fan, a light source assembly, an imaging assembly and a heat exchange module;
the inner circulating fan is arranged in the shell, an inner circulating air duct communicated with an air inlet and an air outlet of the inner circulating fan is formed in the shell, the light source assembly comprises an LED light source and a light funnel arranged in the inner circulating air duct, a light inlet of the light funnel extends out of the shell, the LED light source is arranged at a light inlet of the light funnel, the imaging assembly is arranged on a light outlet side of the light funnel, and the imaging assembly comprises an LCD screen positioned in the inner circulating air duct; the heat exchange module comprises a cold-face radiator and a hot-face radiator, the cold-face radiator is arranged in the internal circulation air duct, and the hot-face radiator is arranged outside the shell and connected with the cold-face radiator to conduct heat.
2. The efficient heat dissipation enclosed-type bare engine according to claim 1, wherein:
the air inlet of the internal circulation fan is opposite to the cold face radiator, and the air outlet of the internal circulation fan is opposite to the LCD screen.
3. The high-efficiency heat-dissipating enclosed engine of claim 2, wherein:
the casing is internally provided with a first cavity, a second cavity and a third cavity, the first cavity is arranged at the top of the second cavity and communicated with an air outlet of the internal circulation fan, the third cavity is arranged at the side part of the second cavity and communicated with an air inlet of the internal circulation fan, the first cavity, the second cavity and the third cavity are sequentially communicated to form an internal circulation air duct, the imaging assembly is arranged in the first cavity, the light funnel is arranged in the second cavity, and the cold surface radiator is arranged in the third cavity.
4. The efficient heat dissipation enclosed-type bare engine according to claim 1, wherein:
the LED light source is characterized by further comprising an LED radiator, wherein the LED radiator is connected to one side of the LED light source, which is opposite to the light funnel.
5. The efficient heat dissipation enclosed-type bare engine according to claim 4, wherein:
the LED heat radiator comprises a shell, a heat-conducting surface radiator, an LED heat radiator and an outer circulating fan, wherein the outer circulating fan is arranged outside the shell and used for cooling the LED heat radiator and the heat-conducting surface radiator.
6. The efficient heat dissipation enclosed-type bare engine according to claim 5 and wherein:
the heat-resistant LED heat radiator comprises a shell, and is characterized by further comprising an outer circulation shell, wherein the outer circulation shell is arranged outside the shell and surrounds an outer circulation air duct with two open ends with the shell, and the heat-resistant surface radiator, the outer circulation fan and the LED radiator are sequentially arranged in the outer circulation air duct.
7. The efficient heat dissipation enclosed-type bare engine according to claim 1, wherein:
the imaging component further comprises a first phenanthrene mirror, heat-insulating glass and a second phenanthrene mirror, wherein the first phenanthrene mirror, the heat-insulating glass, the LCD screen and the second phenanthrene mirror are sequentially arranged along the light emitting direction of the light funnel, and the first phenanthrene mirror is covered on the light emitting port of the light funnel.
8. The high-efficiency heat-dissipating enclosed engine of claim 3, wherein:
the projection assembly is arranged in the projection cavity and comprises a reflector and a projection lens, and image light rays emitted from the imaging assembly are reflected by the reflector and then emitted from the projection lens.
9. The efficient heat dissipation enclosed-type bare engine according to claim 1, wherein:
the cold-face radiator and the hot-face radiator are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320544217.3U CN220305615U (en) | 2023-03-17 | 2023-03-17 | Efficient heat-dissipation closed optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320544217.3U CN220305615U (en) | 2023-03-17 | 2023-03-17 | Efficient heat-dissipation closed optical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305615U true CN220305615U (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320544217.3U Active CN220305615U (en) | 2023-03-17 | 2023-03-17 | Efficient heat-dissipation closed optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305615U (en) |
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2023
- 2023-03-17 CN CN202320544217.3U patent/CN220305615U/en active Active
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