CN223296265U - Closed optical machine for vertical projector and LCD projector - Google Patents
Closed optical machine for vertical projector and LCD projectorInfo
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- CN223296265U CN223296265U CN202422739744.7U CN202422739744U CN223296265U CN 223296265 U CN223296265 U CN 223296265U CN 202422739744 U CN202422739744 U CN 202422739744U CN 223296265 U CN223296265 U CN 223296265U
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- internal circulation
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Abstract
本实用新型涉及一种用于立式投影仪的密闭式光机以及LCD投影仪，密闭式光机包括：壳体、内循环风机、成像组件、热交换模组、光源组件、外循环风机以及LED散热器；所述内循环风机设置于所述壳体内，所述壳体内部形成有连通于所述内循环风机的进风口和出风口的内循环风道，所述成像组件包括位于所述内循环风道中的LCD屏，所述内循环风道的空气流经所述LCD屏的相对两侧，其中，流经所述LCD屏一侧的空气与流经所述LCD屏另一侧的空气的方向相反，本申请实施例密闭式光机通过内循环的方式对LCD屏进行散热，有利于光机的小型化，另外外循环风机可同时对热面散热器和LED散热器进行散热，也使得整体布局紧凑。
The present invention relates to a closed optical machine for a vertical projector and an LCD projector, wherein the closed optical machine comprises: a shell, an internal circulation fan, an imaging component, a heat exchange module, a light source component, an external circulation fan and an LED radiator; the internal circulation fan is arranged in the shell, and an internal circulation air duct connected to an air inlet and an air outlet of the internal circulation fan is formed inside the shell, the imaging component comprises an LCD screen located in the internal circulation air duct, and the air of the internal circulation air duct flows through the opposite sides of the LCD screen, wherein the air flowing through one side of the LCD screen is in an opposite direction to the air flowing through the other side of the LCD screen. The closed optical machine of the embodiment of the present application dissipates heat to the LCD screen by means of internal circulation, which is conducive to the miniaturization of the optical machine. In addition, the external circulation fan can dissipate heat to the hot surface radiator and the LED radiator at the same time, which also makes the overall layout compact.
Description
Technical Field
The present utility model relates to the field of projector technologies, and in particular, to a sealed optical engine for a vertical projector and an LCD projector.
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.
In order to avoid dust pollution, the conventional optical machine is generally designed into a closed type, the closed optical machine forms an internal circulation air channel inside, air in the internal circulation air channel is driven by a fan to flow through a radiator to cool the LCD screen, however, the internal circulation air channel of the optical machine is not reasonable enough, and the air flows to the same direction through two sides of the LCD screen, so that the internal circulation air channel occupies more space inside the optical machine, and the optical machine is not beneficial to developing in a miniaturized direction. Therefore, it is urgently required to design a sealed optical machine with reasonable air duct and high heat dissipation efficiency.
Disclosure of utility model
Based on this, the present utility model aims to overcome the defects of the prior art and provide a sealed optical machine for a vertical projector and an LCD projector.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a sealed optical engine for a stand projector, comprising:
the LED heat radiator comprises a shell, an inner circulating fan, an imaging assembly, a heat exchange module, a light source assembly, an outer circulating fan and an LED radiator;
the inner circulating fan is arranged in the shell, an inner circulating air channel communicated with an air inlet and an air outlet of the inner circulating fan is formed in the shell, the imaging component comprises an LCD screen positioned in the inner circulating air channel, air in the inner circulating air channel flows through two opposite sides of the LCD screen, the air flowing through one side of the LCD screen is opposite to the air flowing through the other side of the LCD screen, the heat exchange module comprises a cold-face radiator and a hot-face radiator which are connected to conduct heat, the cold-face radiator is arranged in the inner circulating air channel, and the hot-face radiator is arranged outside the shell;
the light source component comprises a mounting shell, a light funnel and an LED light source, the housing is provided with a mounting opening at a position adjacent to the LCD screen, the mounting shell is mounted in the mounting opening, the light funnel is arranged in the mounting shell, the light outlet of the light funnel faces the LCD screen, the LED light source is arranged at the inlet light position of the light funnel, the LED radiator is arranged outside the shell and used for radiating the LED light source, and the external circulation fan is arranged outside the shell and is positioned at one side, far away from the hot-surface radiator, of the LED radiator.
The closed type air conditioner disclosed by the embodiment of the application dissipates heat of the LCD screen 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 eliminates the occurrence of black spots of the LCD screen, is beneficial to improving user experience, has reasonable internal circulation air duct design and is beneficial to miniaturization of the air conditioner, and in addition, the external circulation fan can dissipate heat of the hot-face radiator and the LED radiator at the same time, so that the overall layout is compact.
As one embodiment, the air inlet of the external circulation fan is opposite to the LED radiator.
As an implementation mode, a first cavity, a second cavity and a third cavity which are sequentially arranged are formed in the shell, the LCD screen is arranged in the second cavity and is divided into a first heat dissipation channel and a second heat dissipation channel which are positioned on two opposite sides of the LCD screen, the first heat dissipation channel, the first cavity, the second heat dissipation channel and the third cavity are sequentially communicated to form an internal circulation air channel, the internal circulation fan is arranged in the third cavity, and the cold surface radiator is arranged in the first cavity.
As one embodiment, the cold surface radiator comprises a plurality of first radiating fins arranged at intervals, and gaps among the first radiating fins face the internal circulation fan.
As an implementation mode, 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 to the heat conducting plate, the other end of the heat pipe penetrates through the plurality of radiating fins, and gaps among the plurality of radiating fins face the external circulation fan.
As an implementation mode, 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 cover is arranged at the light emitting port of the light funnel.
As an implementation mode, the closed ray apparatus further comprises a projection assembly, a projection cavity located at the top of the second cavity is further formed in the shell, 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.
As an embodiment, the cold-face radiator and the hot-face radiator are integrally provided.
As one embodiment, the internal circulation fan is a vortex fan.
An LCD projector comprises a projection housing and a closed optical machine arranged in the projection housing and used for a vertical projector.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of a closed optical engine according to an embodiment of the present application;
FIG. 2 is a schematic view of a sealed optical engine according to another embodiment of the present application;
FIG. 3 is a schematic diagram of an explosion structure of a sealed optical engine according to an embodiment of the present application;
FIG. 4 is a schematic view of the internal structure of a hermetic optical engine according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating an air flow direction of a sealed optical engine according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a heat exchange module according to an embodiment of the present application;
reference numerals illustrate:
1. The LED light source comprises a shell, 10 parts of an inner circulation air duct, 101 parts of a first cavity, 102 parts of a first heat dissipation channel, 103 parts of a second heat dissipation channel, 104 parts of a third cavity, 11 parts of a projection cavity, 2 parts of an inner circulation fan, 31 parts of a first phenanthrene mirror, 32 parts of heat insulation glass, 33 parts of an LCD screen, 34 parts of a second phenanthrene mirror, 41 parts of a cold surface radiator, 411 parts of a first heat dissipation fin, 42 parts of a hot surface radiator, 421 parts of a second heat dissipation fin, 51 parts of a mounting shell, 52 parts of a light funnel, 53 parts of an LED light source, 6 parts of an outer circulation fan, 7 parts of an LED radiator, 71 parts of a heat conduction plate, 72 parts of a heat pipe, 73 parts of a heat dissipation fin, 81 parts of a reflector, 82 parts of a heat dissipation fin and a projection lens.
Detailed Description
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible implementations and advantages of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
Referring to fig. 1 to 6, the present embodiment provides a sealed optical engine, which is practically applied to a vertical projector, but can be applied to other projectors with other installation types through a certain external adjustment. The closed type optical engine of the embodiment comprises a shell 1, an inner circulating fan 2, an imaging component, a heat exchange module, a light source component, an outer circulating fan 6 and an LED radiator 7.
The internal circulation fan 2 is disposed in the housing 1, an internal circulation air duct 10 communicating with an air inlet and an air outlet of the internal circulation fan 2 is formed in the housing 1, the imaging assembly includes an LCD screen 33 disposed in the internal circulation air duct 10, and air in the internal circulation air duct 10 flows through opposite sides of the LCD screen 33, wherein air flowing through one side of the LCD screen 33 is opposite to air flowing through the other side of the LCD screen 33, that is, when air circulates in the internal circulation air duct 10, air can sequentially flow through opposite sides of the LCD screen 33, and air flowing through opposite sides of the LCD screen 33 flows in opposite directions.
The heat exchange module comprises a cold-face radiator 41 and a hot-face radiator 42 which are connected to conduct heat, the cold-face radiator 41 is arranged in the internal circulation air duct 10, and the hot-face radiator 42 is arranged outside the shell 1. The light source assembly comprises a mounting shell 51, a light funnel 52 and an LED light source 53, wherein a mounting opening is formed in the position, adjacent to the LCD screen 33, of the housing 1, the mounting shell 51 is mounted in the mounting opening, the light funnel 52 is arranged in the mounting shell 51, the light outlet of the light funnel 52 faces the LCD screen 33, the LED light source 53 is arranged at the light inlet of the light funnel 52, and light emitted by the LED light source 53 passes through the light funnel 52 and then passes through the imaging assembly, so that image light is formed.
The LED radiator 7 is arranged outside the shell 1 and is used for radiating the LED light source 53, and the external circulation fan 6 is arranged outside the shell 1 and is positioned at one side of the LED radiator 7 far away from the hot-surface radiator 42.
The LED radiator 7 can radiate heat of the LED light source 53 so as to effectively ensure the normal work of the LED light source 53 and prolong the service life of the LED light source 53. The outer circulation fan 6 can cool the LED radiator 7 and the hot-surface radiator 42 at the same time, which is beneficial to saving energy, reducing consumption, reducing manufacturing cost and noise, and the position arrangement of the outer circulation fan 6 is reasonable, so that the heat dissipation effect can be ensured, and the whole structure is more compact.
As shown in fig. 5, the black arrows in fig. 5 indicate the air flowing direction of the internal circulation duct 10, when the internal circulation fan 2 is started, the air flowing in the internal circulation duct 10 can be driven to circulate, firstly, the air output from the air outlet of the internal circulation fan 2 passes through one side of the LCD screen 33 to take away the heat of the LCD screen 33 for first heat dissipation, then the air flows to the cold surface radiator 41 for heat exchange for cooling, then the air passes through the other side of the LCD screen 33 to take away the heat of the LCD screen 33 again for second heat dissipation, and finally enters the air inlet of the internal circulation fan 2 for circulation in sequence. Therefore, the design of the internal circulation air duct 10 of the present embodiment can effectively prolong the length of the internal circulation air duct 10, so that air can pass through the two sides of the LCD screen 33 from opposite directions, fully dissipate heat of the LCD screen 33, and save internal space, thereby facilitating miniaturization of the optical machine.
In addition, 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 can rapidly take away heat through the external circulation fan 6, so that the cold-face radiator 41 is in a low-temperature state, rapid heat dissipation of the LCD screen 33 is effectively realized, normal operation and overall safety of the LCD screen 33 are effectively ensured, and the service life of the LCD screen 33 is prolonged.
The sealed optical engine of the embodiment of the application dissipates heat of the LCD screen 33 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 1 to pollute the LCD screen 33, effectively eliminates the occurrence of black spots of the LCD screen 33, is beneficial to improving user experience, has reasonable design of an internal circulation air duct 10, is beneficial to miniaturization of the optical engine, and has compact overall layout because the external circulation fan 6 can dissipate heat of the heat-dissipating surface radiator 42 and the LED radiator 7 at the same time.
The air inlet of the outer circulation fan 6 is opposite to the LED radiator 7, so that when the outer circulation fan 6 works, air can be attracted to flow through the hot-face radiator 42 and the LED radiator 7, and wind resistance can be reduced to enable air flow to be more stable.
Specifically, in this embodiment, a first cavity 101, a second cavity and a third cavity 104 are sequentially arranged in the housing 1, the LCD screen 33 is disposed in the second cavity and is divided into a first heat dissipation channel 102 and a second heat dissipation channel 103 that are located on opposite sides of the LCD screen 33, the first heat dissipation channel 102, the first cavity 101, the second heat dissipation channel 103 and the third cavity 104 are sequentially communicated to form the internal circulation air duct 10, the internal circulation fan 2 is disposed in the third cavity 104, and the cold surface radiator 41 is disposed in the first cavity 101. 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 heat dissipation channel 102, first cavity 101, second heat dissipation channel 103 and third cavity 104 in proper order to the realization is to the cooling of LCD screen 33.
Specifically, the imaging assembly of this embodiment further includes a first phenanthrene mirror 31, a heat-insulating glass 32, and a second phenanthrene mirror 34, where the first phenanthrene mirror 31, the heat-insulating glass 32, the LCD screen 33, and the second phenanthrene mirror 34 are sequentially disposed along the light emitting direction of the light funnel 52, and the first phenanthrene mirror 31 is covered on the light emitting port of the light funnel 52.
Specifically, the sealed optical engine of this embodiment further includes a projection assembly, the housing 1 is further internally formed with a projection cavity 11 located at the top of the second cavity, the projection assembly is disposed in the projection cavity 11, and includes a reflective mirror 81 and a projection lens 82, and image light rays emitted from the imaging assembly are reflected by the reflective mirror 81 and then are emitted from the projection lens 82. Specifically, the second phenanthrene mirror 34 is sealed at an opening between the projection cavity 11 and the second cavity, and light emitted by the LED light source 53 sequentially passes through the light funnel 52, the first phenanthrene mirror 31, the heat insulating glass 32, the LCD screen 33, the second phenanthrene mirror 34 and the reflective mirror 81, and then is emitted from the projection lens 82, so as to form a projection image.
Specifically, the cold-surface radiator 41 of the present embodiment includes a plurality of first cooling fins 411 disposed at intervals, and gaps between the plurality of first cooling fins 411 face the inner circulation fan 2, so that the heat dissipation efficiency can be improved, and the cooling is facilitated. The hot-side radiator 42 includes a plurality of second cooling fins 421 disposed at intervals, and the cold-side radiator 41 and the hot-side radiator 42 are integrally disposed, so as to further facilitate heat dissipation.
Specifically, the LED radiator 7 of the present embodiment includes a heat conducting plate 71, a heat pipe 72, and a plurality of heat dissipating fins 73 disposed at intervals, where the heat conducting plate 71 is attached to a side of the LED light source 53 opposite to the light funnel 52, one end of the heat pipe 72 is connected to the heat conducting plate 71, the other end of the heat pipe passes through the plurality of heat dissipating fins 73, and gaps between the plurality of heat dissipating fins 73 face the outer circulation fan 6, so that efficient heat dissipation can be performed on the LED light source 53.
Preferably, the internal circulation fan 2 in this embodiment is an eddy fan, and the design of the internal circulation air duct 10 can be facilitated by adopting such a fan.
The present embodiment also provides an LCD projector, which includes a projection housing and the sealed optical engine according to the present embodiment disposed in the projection housing, and the LCD projector has the advantages of the sealed optical engine according to the present embodiment, which is not described herein.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422739744.7U CN223296265U (en) | 2024-11-11 | 2024-11-11 | Closed optical machine for vertical projector and LCD projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422739744.7U CN223296265U (en) | 2024-11-11 | 2024-11-11 | Closed optical machine for vertical projector and LCD projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223296265U true CN223296265U (en) | 2025-09-02 |
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ID=96870629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422739744.7U Active CN223296265U (en) | 2024-11-11 | 2024-11-11 | Closed optical machine for vertical projector and LCD projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223296265U (en) |
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2024
- 2024-11-11 CN CN202422739744.7U patent/CN223296265U/en active Active
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