CN220305614U - Closed ray apparatus convenient to heat dissipation - Google Patents
Closed ray apparatus convenient to heat dissipation Download PDFInfo
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- CN220305614U CN220305614U CN202320542663.0U CN202320542663U CN220305614U CN 220305614 U CN220305614 U CN 220305614U CN 202320542663 U CN202320542663 U CN 202320542663U CN 220305614 U CN220305614 U CN 220305614U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract 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
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001743 silencing effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000191 radiation effect 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 closed ray apparatus convenient to heat dissipation, include: the LED heat radiator comprises a shell, an inner circulating fan, a light source assembly, an imaging assembly, a heat exchange module, an outer circulating fan and an LED radiator; the internal circulation fan is arranged 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; compared with the prior art, the closed optical engine dissipates heat to the LCD screen and the optical funnel in an internal circulation mode, has good heat dissipation effect, high heat dissipation efficiency and good silencing effect, can prevent dust and dirt from entering the shell to pollute the LCD screen, effectively avoids the occurrence of black spots of the LCD screen, is beneficial to improving user experience, and the external circulation fan can dissipate heat to the heat surface radiator and the LED radiator at the same time, so that the overall layout is compact.
Description
Technical Field
The application relates to the technical field of heat dissipation of LCD projectors, in particular to a closed optical machine convenient for heat dissipation.
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 heat dissipation function, so as to solve the drawbacks and disadvantages of the prior art.
The utility model provides a closed ray apparatus convenient to heat dissipation, include:
the LED heat radiator comprises a shell, an inner circulating fan, a light source assembly, an imaging assembly, a heat exchange module, an outer circulating fan and an LED radiator;
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 at 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;
the LED radiator comprises a heat conducting plate, a heat pipe and a plurality of radiating fins arranged at intervals, the heat conducting plate is attached to one side of the LED light source, which is opposite to the light funnel, one end of the heat pipe is connected with the heat conducting plate, the other end of the heat pipe penetrates through the radiating fins, and the radiating fins are embedded in the air inlet.
Compared with the prior art, the embodiment of the application is characterized in that the enclosed type optical engine radiates heat to the LCD screen and the light funnel in an internal circulation mode, the radiating effect is good, the radiating efficiency is high, the mute effect is good, dust and dirt can be prevented from entering the shell to pollute the LCD screen, the occurrence of black spots of the LCD screen is effectively avoided, the user experience is improved, and in addition, the external circulation fan can radiate heat to the hot-face radiator and the LED radiator at the same time, so that the whole layout is compact.
In some preferred or alternative embodiments, the air outlet of the internal circulation fan is disposed opposite to the LCD panel.
In some preferred or alternative embodiments, a first cavity, a second cavity and a third cavity are formed inside the shell, 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 some preferred or alternative embodiments, the cold face radiator includes a plurality of first cooling fins arranged at intervals, gaps among the first cooling fins face the inner circulation fan, and the hot face radiator includes a plurality of second cooling fins arranged at intervals, and gaps among the second cooling fins face the exhaust outlet of the outer circulation fan.
In some preferred or alternative embodiments, 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 some preferred or alternative embodiments, the enclosed optical engine convenient for heat dissipation further includes a projection assembly, a projection cavity located at the top of the first cavity is further formed inside the housing, the projection assembly is disposed in the projection cavity, and the projection assembly includes a reflector and a projection lens, and the image light emitted from the imaging assembly is reflected by the reflector and then emitted from the projection lens.
In some preferred or alternative embodiments, the cold and hot side heat sinks are connected by a semiconductor refrigeration sheet.
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 view angle of a closed optical engine according to an embodiment of the present application;
FIG. 3 is a schematic view of a partial explosion of a closed optical engine at another view angle according to an embodiment of the present application;
fig. 4 is a schematic diagram of an internal structure of a closed optical engine according to an embodiment of the present application;
FIG. 5 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;
fig. 6 is a schematic structural diagram of an external circulation fan and an LED radiator in the embodiment of the present application;
FIG. 7 is a schematic diagram of a heat exchange module 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; 511. a first heat sink; 52. a hot-side radiator; 521. a second heat sink; 6. an LED radiator; 61. a heat conductive plate; 62. a heat pipe; 63. a heat radiation fin; 7. an external circulation fan; 71. an air outlet; 72. an air inlet; 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 7, an embodiment of the present application provides a closed optical engine for facilitating heat dissipation, including: the device comprises a shell 1, an inner circulating fan 2, a light source assembly, an imaging assembly, a heat exchange module, an LED radiator 6 and an outer circulating fan 7.
The inner circulating fan 2 is arranged in the shell 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 shell 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 shell 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.
The outer circulation fan 7 is disposed adjacent to the hot-face radiator 52 and is connected to the outside of the housing 1, the outer circulation fan 7 has an air outlet 71 and an air inlet 72 corresponding to the hot-face radiator, the LED radiator 6 includes a heat conducting plate 61, a heat pipe 62 and a plurality of heat dissipation fins 63 disposed at intervals, the heat conducting plate 61 is attached to one side of the LED light source 31 facing away from the light funnel 32, one end of the heat pipe 62 is connected to the heat conducting plate 61, the other end passes through a plurality of the heat dissipation fins 63, and a plurality of the heat dissipation fins 63 are embedded in the air inlet 72. The LED radiator 6 can radiate heat of the LED light source 31 so as to effectively ensure the normal operation of the LED light source 31 and prolong the service life of the LED light source 31. The external circulation fan 7 can cool the heat dissipation fins 63 and the hot-surface radiator 52 of the LED radiator 6 at the same time, thereby being beneficial to saving energy and reducing consumption, reducing manufacturing cost and reducing noise. The heat radiation fins 63 are embedded into the air inlet 72, so that the air flow entering the external circulation fan 7 can be ensured to pass through the heat radiation fins 63, the heat radiation effect is ensured, and the whole structure is more compact.
As shown in fig. 4 and 5, the black arrows in fig. 5 indicate the air flowing direction of the internal circulation duct, by setting as above, when the internal circulation fan 2 is started, the air in the internal circulation 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 into cold air, and the cold air can cool down the LCD screen 43 and the light funnel 32 in the internal circulation duct 11, rapidly take away the heat generated by the LCD screen 43 and the light funnel 32, and circulate in sequence. The cold-face radiator 51 heats up during heat exchange, so that the hot-face radiator 52 outside the shell 1 needs to be connected to absorb heat of the cold-face radiator 51, and the hot-face radiator 52 can rapidly take away the heat through the outer circulating fan 7, so that the cold-face radiator 51 is in a low-temperature state, the rapid heat dissipation of the LCD screen 43 and the light funnel 32 is effectively realized, the normal operation and the complete machine safety of the LCD screen 43 and the light funnel 32 are effectively ensured, and the service lives of the LCD screen 43 and the light funnel 32 are prolonged.
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 1 and pollute LCD screen 43, has stopped the appearance of LCD screen 43 black spot effectively, is favorable to improving user experience, and outer loop blower 7 can dispel the heat to hot side radiator 52 and LED radiator 6 simultaneously in addition for whole overall arrangement is compact.
Specifically, in this embodiment, the internal circulation fan 2 is a vortex fan. The air outlet of the internal circulation fan 2 is opposite to the LCD panel 43, so as to enable the internal circulation fan 2 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. 4 and 5. 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.
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 the embodiment, the cold-face radiator 51 and the hot-face radiator 52 are connected by a semiconductor refrigeration sheet (not shown), and the semiconductor refrigeration sheet cools the cold-face radiator 51 and the hot-face radiator 52, so that heat dissipation is further facilitated.
In this embodiment, the cold-surface radiator 51 includes a plurality of first cooling fins 511 arranged at intervals, gaps between the first cooling fins 511 face the inner circulation fan 2, the hot-surface radiator 52 includes a plurality of second cooling fins 521 arranged at intervals, and gaps between the second cooling fins 521 face the air outlet 71 of the outer circulation fan 7, so that the heat dissipation efficiency can be improved, and the cooling is facilitated.
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 (7)
1. A closed ray apparatus convenient to heat dissipation, characterized by comprising:
the LED heat radiator comprises a shell, an inner circulating fan, a light source assembly, an imaging assembly, a heat exchange module, an outer circulating fan and an LED radiator;
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 at 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;
the LED radiator comprises a heat conducting plate, a heat pipe and a plurality of radiating fins arranged at intervals, the heat conducting plate is attached to one side of the LED light source, which is opposite to the light funnel, one end of the heat pipe is connected with the heat conducting plate, the other end of the heat pipe penetrates through the radiating fins, and the radiating fins are embedded in the air inlet.
2. The enclosed-type bare engine facilitating heat dissipation according to claim 1, wherein:
and an air outlet of the internal circulation fan is opposite to the LCD screen.
3. The enclosed-type bare engine facilitating heat dissipation according to claim 2, wherein:
the novel air conditioner comprises a shell, and is characterized in that a first cavity, a second cavity and a third cavity are formed in the shell, the first cavity is arranged at the top of the second cavity and communicated with an air outlet of an 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, an imaging assembly is arranged in the first cavity, an optical funnel is arranged in the second cavity, and a cold face radiator is arranged in the third cavity.
4. The enclosed-type bare engine facilitating heat dissipation according to claim 1, wherein:
the cold face radiator comprises a plurality of first radiating fins arranged at intervals, a plurality of gaps among the first radiating fins face the inner circulating fan, the hot face radiator comprises a plurality of second radiating fins arranged at intervals, and a plurality of gaps among the second radiating fins face the air outlet of the outer circulating fan.
5. The enclosed-type bare engine facilitating heat dissipation 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.
6. A closed optical bench for facilitating heat dissipation according to claim 3 and 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.
7. The enclosed-type bare engine facilitating heat dissipation according to claim 1, wherein:
the cold-face radiator and the hot-face radiator are connected through a semiconductor refrigerating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320542663.0U CN220305614U (en) | 2023-03-17 | 2023-03-17 | Closed ray apparatus convenient to heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320542663.0U CN220305614U (en) | 2023-03-17 | 2023-03-17 | Closed ray apparatus convenient to heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305614U true CN220305614U (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320542663.0U Active CN220305614U (en) | 2023-03-17 | 2023-03-17 | Closed ray apparatus convenient to heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305614U (en) |
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2023
- 2023-03-17 CN CN202320542663.0U patent/CN220305614U/en active Active
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