CN218886389U - Projection cooling system and projection equipment - Google Patents
Projection cooling system and projection equipment Download PDFInfo
- Publication number
- CN218886389U CN218886389U CN202320063016.1U CN202320063016U CN218886389U CN 218886389 U CN218886389 U CN 218886389U CN 202320063016 U CN202320063016 U CN 202320063016U CN 218886389 U CN218886389 U CN 218886389U
- Authority
- CN
- China
- Prior art keywords
- centrifugal fan
- liquid crystal
- projection
- cooling system
- crystal panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The embodiment of the application discloses a projection cooling system and projection equipment, wherein the projection cooling system comprises a shell, a liquid crystal panel, a first centrifugal fan and a second centrifugal fan, the shell is provided with an installation cavity, and the liquid crystal panel is arranged in the installation cavity; the first centrifugal fan and the second centrifugal fan are arranged on the same side of the shell, the first centrifugal fan and the second centrifugal fan are both provided with air outlets, and the air outlets are communicated with the mounting cavity; the air outlet includes strong wind district and weak wind district, one side in the strong wind district of second centrifugal fan is located in the strong wind district of first centrifugal fan, the strong wind district of first centrifugal fan and the middle part setting that the strong wind district of second centrifugal fan corresponds liquid crystal display panel, the weak wind district of first centrifugal fan is located one side that deviates from second centrifugal fan in the strong wind district of first centrifugal fan, the weak wind district of second centrifugal fan is located one side that deviates from first centrifugal fan in the strong wind district of second centrifugal fan, can improve the radiating effect at liquid crystal display panel's middle part, effectively reduce liquid crystal display panel's middle part temperature.
Description
Technical Field
The application relates to the technical field of projection equipment heat dissipation, in particular to a projection heat dissipation system and projection equipment.
Background
The basic principle of the projection apparatus is to use the liquid crystal panel to modulate the color light projected from the light source to the screen, and in order to accurately project the color of the image, it is necessary to separate the color of the light source into three colors of red, green and blue, and then combine them together and project them on the screen by the projection lens.
As shown in fig. 1, in a projection apparatus, a liquid crystal panel 1 becomes one of heat generating sources, and a centrifugal fan 2 is generally provided to dissipate heat of the liquid crystal panel 1. In the research and practice process of the prior art, the inventor of the present application finds that the air outlet 21 of the centrifugal fan 2 includes a strong air area 22 and a weak air area 23, the strong air area 22 and the weak air area 23 of the centrifugal fan 2 respectively correspond to the upper side and the lower side of the liquid crystal panel 1, and the middle of the liquid crystal panel 1 is a main heating area, so that the middle of the liquid crystal panel 1 is difficult to be effectively cooled by the cooling method.
SUMMERY OF THE UTILITY MODEL
The application provides a projection cooling system and projection equipment can improve the technical problem that the middle part of a liquid crystal panel is difficult to adopt centrifugal fan to effectively radiate for the existing projection equipment.
The application provides a projection cooling system is applied to projection equipment, projection cooling system includes:
a housing provided with a mounting cavity;
the liquid crystal panel is arranged in the mounting cavity;
a first centrifugal fan; and
the second centrifugal fan and the first centrifugal fan are arranged on the same side of the shell together, the first centrifugal fan and the second centrifugal fan are both provided with air outlets, and the air outlets are communicated with the installation cavity;
wherein, the air outlet includes strong wind district and weak wind district, the strong wind district of first centrifugal fan is located one side in the strong wind district of second centrifugal fan, the strong wind district of first centrifugal fan with the strong wind district of second centrifugal fan corresponds liquid crystal display panel's middle part sets up, the weak wind district of first centrifugal fan is located deviating from in the strong wind district of first centrifugal fan one side of second centrifugal fan, the weak wind district of second centrifugal fan is located deviating from in the strong wind district of second centrifugal fan one side of first centrifugal fan.
Optionally, in some embodiments of the present application, the projection cooling system further includes:
the air guide piece is provided with an air duct, and the air outlet is communicated with the installation cavity through the air duct.
Optionally, in some embodiments of the present application, the air duct includes a first flow guide channel and a second flow guide channel, the air outlet is sequentially communicated with the installation cavity through the first flow guide channel and the second flow guide channel, and the first flow guide channel is perpendicular to the second flow guide channel.
Optionally, in some embodiments of the present application, an inlet and an outlet are respectively disposed on two opposite sides of the casing, and the second flow guide channel is sequentially communicated with the outlet through the inlet and the installation cavity.
Optionally, in some embodiments of the present application, the liquid crystal panel is suspended in the installation cavity, a first slot is formed in an inner wall of the installation cavity, and an edge of the liquid crystal panel is inserted into the first slot.
Optionally, in some embodiments of the present application, the projection cooling system further includes:
the first optical piece is arranged in the mounting cavity and positioned above the liquid crystal panel, a first heat dissipation channel is formed by enclosing the first optical piece and the liquid crystal panel, and the second flow guide channel is communicated with the outlet through the inlet and the first heat dissipation channel in sequence.
Optionally, in some embodiments of the present application, a second slot is disposed on an inner wall of the installation cavity, and an edge of the first optical element is inserted into the second slot.
Optionally, in some embodiments of the present application, the projection cooling system further includes:
the second optical piece is arranged in the mounting cavity and located below the liquid crystal panel, a second heat dissipation channel is formed by enclosing the second optical piece and the liquid crystal panel, and the second flow guide channel is communicated with the outlet through the inlet and the second heat dissipation channel in sequence.
Optionally, in some embodiments of the present application, a third slot is formed in an inner wall of the installation cavity, and an edge of the second optical element is inserted into the third slot.
The application also provides a projection device which comprises the projection cooling system.
The embodiment of the application adopts a projection cooling system and projection equipment, and the liquid crystal panel is cooled by adopting the first centrifugal fan and the second centrifugal fan, and the strong wind area of the first centrifugal fan and the strong wind area of the second centrifugal fan are arranged in the middle of the liquid crystal panel, so that the cooling effect of the middle part of the liquid crystal panel can be improved, and the temperature of the middle part of the liquid crystal panel is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of heat dissipation of a liquid crystal panel in a conventional projection apparatus;
fig. 2 is a schematic perspective view of a projection cooling system according to an embodiment of the present disclosure;
fig. 3 is an exploded schematic view of a projection cooling system according to an embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional structural diagram of a projection cooling system according to an embodiment of the present application;
fig. 5 is a schematic diagram of a projection cooling system according to an embodiment of the present disclosure.
Description of the reference numerals:
1-liquid crystal panel, 2-centrifugal fan, 21-air outlet, 22-strong air area, 23-weak air area, 100-shell, 110-installation cavity, 111-first heat dissipation channel, 112-second heat dissipation channel, 120-inlet, 130-outlet, 140-first slot, 150-second slot, 160-third slot, 170-projection port, 200-liquid crystal panel, 300-first centrifugal fan, 400-second centrifugal fan, 500-air outlet, 510-strong air area, 520-weak air area, 600-air guide, 610-air channel, 611-first flow guide, 612-second flow guide, 700-first optical element, 800-second optical element and 900-reflector.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. It is to be understood that the drawings are designed solely for the purposes of reference and illustration and not as a definition of the limits of the application. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It should be noted that, in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 2 to 4, an embodiment of the present application provides a projection cooling system for a projection apparatus. The projection heat dissipation system comprises a housing 100 and a liquid crystal panel 200, wherein the housing 100 is provided with a mounting cavity 110, and the liquid crystal panel 200 is arranged in the mounting cavity 110.
As shown in fig. 4 and 5, the projection heat dissipation system further includes a first centrifugal fan 300 and a second centrifugal fan 400, the first centrifugal fan 300 and the second centrifugal fan 400 are both disposed on the same side of the housing 100, the first centrifugal fan 300 and the second centrifugal fan 400 are both provided with an air outlet 500, and the air outlet 500 is communicated with the mounting cavity 110, so that the first centrifugal fan 300 and the second centrifugal fan 400 can perform air cooling heat dissipation on the liquid crystal panel 200.
As shown in fig. 4 and 5, the air outlet 500 includes a strong air area 510 and a weak air area 520, the strong air area 510 of the first centrifugal fan 300 is disposed on one side of the strong air area 510 of the second centrifugal fan 400, the strong air area 510 of the first centrifugal fan 300 and the strong air area 510 of the second centrifugal fan 400 are disposed corresponding to the middle portion of the liquid crystal panel 200, the weak air area 520 of the first centrifugal fan 300 is located on one side of the strong air area 510 of the first centrifugal fan 300, which is away from the second centrifugal fan 400, and the weak air area 520 of the second centrifugal fan 400 is located on one side of the strong air area 510 of the second centrifugal fan 400, which is away from the first centrifugal fan 300.
In this structure, the liquid crystal panel 200 is cooled by the first centrifugal fan 300 and the second centrifugal fan 400, and the strong wind area 510 of the first centrifugal fan 300 and the strong wind area 510 of the second centrifugal fan 400 are arranged corresponding to the middle of the liquid crystal panel 200, so that the cooling effect of the middle of the liquid crystal panel 200 can be improved, and the temperature of the middle of the liquid crystal panel 200 can be effectively reduced; in contrast to the middle of the liquid crystal panel 200, the temperatures of the two sides of the liquid crystal panel 200 are lower, and the two sides of the liquid crystal panel 200 can be controlled to a proper temperature by using the weak wind region 520 of the first centrifugal fan 300 and the weak wind region 520 of the second centrifugal fan 400.
Specifically, as shown in fig. 3 to 5, the projection heat dissipation system further includes an air guide 600, the air guide 600 is provided with an air duct 610, and the air outlet 500 is communicated with the installation cavity 110 through the air duct 610. Under this structure, through setting up air guide 600, can be with the air outlet 500 of first centrifugal fan 300 and the air outlet 500 of second reason fan merge and communicate in installation cavity 110, projection cooling system's simple structure, easily assembly.
Specifically, as shown in fig. 3 to 5, the air duct 610 includes a first flow guide channel 611 and a second flow guide channel 612, the air outlet 500 is sequentially communicated with the installation cavity 110 through the first flow guide channel 611 and the second flow guide channel 612, and the first flow guide channel 611 and the second flow guide channel 612 are perpendicular to each other. Under this structure, casing 100 is located along the horizontal direction to wind guide 600, first centrifugal fan 300 and second centrifugal fan 400 with one side, and wind guide 600's one side is located along vertical direction to first centrifugal fan 300 and second centrifugal fan 400 for wind guide 600, first centrifugal fan 300 and second centrifugal fan 400 rationally distribute, and projection cooling system's compact structure is favorable to projection cooling system's miniaturized design. It should be noted that the horizontal direction and the vertical direction are perpendicular.
Specifically, as shown in fig. 4, an inlet 120 and an outlet 130 are respectively disposed at two opposite sides of the casing 100, and the second guiding flow passage 612 is sequentially communicated with the outlet 130 through the inlet 120 and the installation cavity 110. With this structure, the airflow may sequentially flow through the inlet 120 and the installation cavity 110 from the second flow guide 612 and then be finally discharged from the outlet 130, so as to take away the heat of the liquid crystal panel 200 and achieve air cooling and heat dissipation.
Specifically, as shown in fig. 3 and 4, the liquid crystal panel 200 is suspended in the installation cavity 110, the first slot 140 is disposed on the inner wall of the installation cavity 110, and the edge of the liquid crystal panel 200 is inserted into the first slot 140. Under this structure, by suspending the liquid crystal panel 200 in the mounting cavity 110, the contact area between the liquid crystal panel 200 and the air flow can be increased, which is beneficial to improving the cooling effect of the liquid crystal panel 200.
Specifically, as shown in fig. 3 and 4, the projection cooling system further includes a first optical member 700. The first optical element 700 is disposed in the mounting cavity 110, the first optical element 700 is located above the liquid crystal panel 200 along a vertical direction, a first heat dissipation channel 111 is defined between the first optical element 700 and the liquid crystal panel 200, and the second flow guide channel 612 sequentially passes through the inlet 120 and the first heat dissipation channel 111 and is communicated with the outlet 130. With this structure, the air flow can sequentially flow through the inlet 120 and the first heat dissipation channel 111 from the second flow guide channel 612 and then be discharged from the outlet 130, and the heat at the top of the liquid crystal panel 200 can be discharged from the outlet 130 along with the air flow above, thereby achieving air-cooling heat dissipation.
Specifically, as shown in fig. 3 and 4, the second slot 150 is disposed on the inner wall of the mounting cavity 110, and the edge of the first optical element 700 is inserted into the second slot 150, so that the first optical element 700 is mounted on the housing 100, and the first optical element 700 is easy and convenient to assemble, which is beneficial to improving the assembly efficiency of the projection heat dissipation system.
Specifically, as shown in fig. 3 and 4, the projection cooling system further includes a second optical element 800 disposed in the mounting cavity 110. The second optical member 800 is located below the liquid crystal panel 200, a second heat dissipation channel 112 is formed between the second optical member 800 and the liquid crystal panel 200, and the second flow guiding channel 612 is sequentially communicated with the outlet 130 through the inlet 120 and the second heat dissipation channel 112. With this structure, the air flow can sequentially flow through the inlet 120 and the second heat dissipation channel 112 from the second flow guide channel 612 and then be discharged from the outlet 130, and the heat at the bottom of the liquid crystal panel 200 can be discharged from the outlet 130 along with the air flow therebelow, thereby achieving air-cooling heat dissipation.
Specifically, as shown in fig. 3 and 4, the third slot 160 is disposed on the inner wall of the mounting cavity 110, and the edge of the second optical element 800 is inserted into the third slot 160, so that the second optical element 800 is mounted on the housing 100, and the second optical element 800 is easy and convenient to assemble, which is beneficial to improving the assembly efficiency of the projection cooling system.
In the embodiment of the present application, the first centrifugal fan 300 and the second centrifugal fan 400 have the same structure. The first centrifugal fan 300 and the second centrifugal fan 400 each include a housing, an impeller, and a driving member, and the housing is provided with an air inlet and an air outlet 500. The impeller rotates to be connected in the shell, and the driving piece is fixed in the shell, and the output and the impeller of driving piece are connected. The driving member is used to drive the impeller to rotate, so that the air flow enters from the air inlet and then exits from the air outlet 500. In this embodiment, the driving member may be, but is not limited to, a micro motor.
Specifically, as shown in fig. 2 to fig. 4, the projection heat dissipation system further includes a reflector 900, the reflector 900 is disposed in the installation cavity 110, and the reflector 900 is obliquely disposed on a side of the first optical element 700 away from the liquid crystal panel 200. The housing 100 is provided with a projection port 170, and light emitted from the liquid crystal panel 200 passes through the first optical member 700, reaches the reflector 900, is reflected, and finally exits from the projection port 170.
The application also provides a projection device which comprises the projection cooling system. Since the projection device in the embodiment of the present application includes the technical solutions of all the embodiments described above, the projection device in the embodiment of the present application also has the beneficial effects of all the embodiments described above, and repeated descriptions are not repeated here.
Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.
Some features of the present application are, for clarity, described in the context of separate embodiments, but may also be provided in combination in a single embodiment. Conversely, certain features of the application, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A projection cooling system applied to a projection device, the projection cooling system comprising:
a housing provided with a mounting cavity;
the liquid crystal panel is arranged in the mounting cavity;
a first centrifugal fan; and
the second centrifugal fan and the first centrifugal fan are arranged on the same side of the shell, air outlets are formed in the first centrifugal fan and the second centrifugal fan, and the air outlets are communicated with the installation cavity;
wherein, the air outlet includes strong wind district and weak wind district, the strong wind district of first centrifugal fan is located one side in the strong wind district of second centrifugal fan, the strong wind district of first centrifugal fan with the strong wind district of second centrifugal fan corresponds liquid crystal display panel's middle part sets up, the weak wind district of first centrifugal fan is located deviating from in the strong wind district of first centrifugal fan one side of second centrifugal fan, the weak wind district of second centrifugal fan is located deviating from in the strong wind district of second centrifugal fan one side of first centrifugal fan.
2. The projection cooling system of claim 1, further comprising:
the air guide piece is provided with an air duct, and the air outlet is communicated with the installation cavity through the air duct.
3. The projection cooling system of claim 2, wherein the air duct includes a first flow guide channel and a second flow guide channel, the air outlet is sequentially communicated with the installation cavity through the first flow guide channel and the second flow guide channel, and the first flow guide channel is perpendicular to the second flow guide channel.
4. The projection cooling system of claim 3, wherein the housing has an inlet and an outlet on opposite sides thereof, and the second flow guide channel is sequentially communicated with the outlet through the inlet and the mounting cavity.
5. The projection cooling system of claim 4, wherein the liquid crystal panel is suspended in the mounting cavity, a first slot is formed in an inner wall of the mounting cavity, and an edge of the liquid crystal panel is inserted into the first slot.
6. The projection cooling system of claim 4, further comprising:
the first optical piece is arranged in the mounting cavity and positioned above the liquid crystal panel, a first heat dissipation channel is formed by enclosing the first optical piece and the liquid crystal panel, and the second flow guide channel is communicated with the outlet through the inlet and the first heat dissipation channel in sequence.
7. The projection cooling system as claimed in claim 6, wherein the inner wall of the mounting cavity is provided with a second slot, and an edge of the first optical member is inserted into the second slot.
8. The projection cooling system of claim 4, further comprising:
the second optical piece is arranged in the mounting cavity and located below the liquid crystal panel, a second heat dissipation channel is formed by enclosing the second optical piece and the liquid crystal panel, and the second flow guide channel is communicated with the outlet sequentially through the inlet and the second heat dissipation channel.
9. The projection cooling system as claimed in claim 8, wherein the inner wall of the mounting cavity is provided with a third slot, and an edge of the second optical element is inserted into the third slot.
10. A projection device comprising the projection cooling system of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320063016.1U CN218886389U (en) | 2023-01-10 | 2023-01-10 | Projection cooling system and projection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320063016.1U CN218886389U (en) | 2023-01-10 | 2023-01-10 | Projection cooling system and projection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218886389U true CN218886389U (en) | 2023-04-18 |
Family
ID=85941611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320063016.1U Active CN218886389U (en) | 2023-01-10 | 2023-01-10 | Projection cooling system and projection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218886389U (en) |
-
2023
- 2023-01-10 CN CN202320063016.1U patent/CN218886389U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107995957B (en) | Head-mounted display device | |
| CN107589592B (en) | Heat dissipation structure for backlight module and backlight module | |
| US20050088627A1 (en) | Projector device | |
| JP2000231154A (en) | Display device and display optical system part | |
| US20210203891A1 (en) | Electronic device and projectors | |
| TW200425735A (en) | Cooling structure of projection television | |
| CN218886389U (en) | Projection cooling system and projection equipment | |
| CN110119059B (en) | Fluorescent wheel fixed knot constructs and laser projection device | |
| CN212255995U (en) | Heat radiation structure and projector | |
| US5666171A (en) | Liquid crystal image projector | |
| JP2002244210A (en) | Lamp for projector and liquid crystal projector | |
| JP2002365728A (en) | Projector | |
| CN208188559U (en) | A kind of cooling system and laser-projector | |
| CN216561377U (en) | Novel projector | |
| CN218848558U (en) | Projection heat dissipation device and projector | |
| CN205787552U (en) | Projection arrangement and heat radiation module thereof | |
| CN205942233U (en) | Heat abstractor and projection equipment | |
| JP2001092012A (en) | Projector device | |
| JP5648294B2 (en) | Projector device | |
| JP2001042435A (en) | Projector device | |
| JP2011141445A (en) | Projector device | |
| CN206863460U (en) | Radiator structure and projector equipment | |
| CN218413183U (en) | Mute LCD (liquid crystal display) closed optical machine | |
| CN218471085U (en) | LCD seals ray apparatus | |
| CN214704285U (en) | Novel projector ray apparatus cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |