CN218848558U - Projection heat dissipation device and projector - Google Patents
Projection heat dissipation device and projector Download PDFInfo
- Publication number
- CN218848558U CN218848558U CN202320063237.9U CN202320063237U CN218848558U CN 218848558 U CN218848558 U CN 218848558U CN 202320063237 U CN202320063237 U CN 202320063237U CN 218848558 U CN218848558 U CN 218848558U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal panel
- heat dissipation
- air
- heat sink
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Projection Apparatus (AREA)
Abstract
The embodiment of the application discloses a projection heat dissipation device and a projector, wherein the projection heat dissipation device comprises a liquid crystal panel, a heat dissipation fan and a guide plate, the heat dissipation fan is arranged on one side of the liquid crystal panel, the heat dissipation fan is provided with an air outlet, the air outlet faces towards the liquid crystal panel, the air outlet comprises a strong wind area and a weak wind area, and the weak wind area is arranged on one side of the strong wind area; the guide plate is arranged between the air outlet of the cooling fan and the liquid crystal panel, extends from the strong wind area side to the weak wind area side and is provided with a plurality of vent holes; the number of the vent holes corresponding to the strong wind area side is less than that of the vent holes corresponding to the weak wind area side, so that the technical problem that the heat dissipation uniformity of the existing projector to the liquid crystal panel is poor can be solved.
Description
Technical Field
The application relates to the technical field of projector heat dissipation, in particular to a projection heat dissipation device and a projector.
Background
There are multiple components that need dispel the heat in the projecting apparatus, like liquid crystal display panel etc. mainly adopt the forced air cooling heat dissipation mode at present, specifically, can adopt centrifugal fan to dispel the heat to liquid crystal display panel. 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 are respectively disposed corresponding to two sides of the liquid crystal panel 1, and the heat dissipation effect of the portion of the liquid crystal panel 1 corresponding to the strong air area 22 is higher than the heat dissipation effect of the portion of the liquid crystal panel 1 corresponding to the weak air area 23, obviously, the uniformity of the heat dissipation of the liquid crystal panel 1 by the heat dissipation method is poor.
SUMMERY OF THE UTILITY MODEL
The application provides a projection heat abstractor and projecting apparatus can improve the current projecting apparatus to the relatively poor technical problem of liquid crystal display panel's heat dissipation homogeneity.
The application provides a projection heat abstractor, includes:
a liquid crystal panel;
the cooling fan is arranged on one side of the liquid crystal panel, the cooling fan is provided with an air outlet, the air outlet faces the liquid crystal panel, the air outlet comprises a strong wind area and a weak wind area, and the weak wind area is arranged on one side of the strong wind area; and
the guide plate is arranged between the air outlet of the cooling fan and the liquid crystal panel, extends from the strong wind area side to the weak wind area side, and is provided with a plurality of ventilation holes; the number of the ventilation holes corresponding to the strong wind zone side is less than the number of the ventilation holes corresponding to the weak wind zone side.
Optionally, in some embodiments of the present application, in the deflector, the distribution density of the vent holes is gradually increased along the direction from the strong wind area side to the weak wind area side.
Optionally, in some embodiments of the present application, in the flow guide plate, an aperture of the vent hole corresponding to the strong wind zone side is smaller than an aperture of the vent hole corresponding to the weak wind zone side.
Optionally, in some embodiments of the present application, in the deflector, the aperture of the vent hole is gradually increased along the direction from the strong wind area side to the weak wind area side.
Optionally, in some embodiments of the present application, the projection heat sink further includes:
the shell is arranged on one side of the radiating fan, an accommodating cavity is formed in the shell, and the liquid crystal panel is arranged in the accommodating cavity;
the air guide pipeline is arranged between the shell and the heat dissipation fan, an air outlet of the heat dissipation fan is communicated with the accommodating cavity through the air guide pipeline, and the guide plate is arranged in the air guide pipeline.
Optionally, in some embodiments of the present application, an extension portion is disposed at one end of the diversion plate corresponding to the weak wind area side, and a straight ventilation duct is enclosed between the extension portion and an inner wall of the air guide duct.
Optionally, in some embodiments of the present application, the liquid crystal panel is suspended in the accommodating cavity.
Optionally, in some embodiments of the present application, an inlet and an outlet are respectively disposed on two opposite sides of the housing, and the air guide duct is sequentially communicated with the outlet through the inlet and the accommodating cavity.
Optionally, in some embodiments of the present application, the projection heat sink further includes:
the first optical piece is arranged in the accommodating cavity, the first optical piece is 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 air guide pipeline is communicated with the outlet through the inlet and the first heat dissipation channel in sequence;
the second optical piece is arranged in the accommodating 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 air guide pipeline is communicated with the outlet through the inlet and the second heat dissipation channel in sequence.
The application also provides a projector which comprises the projection heat dissipation device.
The embodiment of the application adopts a projection heat abstractor and projecting apparatus, through set up the guide plate between radiator fan and liquid crystal display panel, the guide plate is equipped with a plurality of ventilation holes, and the quantity that corresponds the ventilation hole of strong wind district side is less than the quantity that corresponds the ventilation hole of weak wind district side, can guide the partial air current in strong wind district to weak wind district to evenly dispel the heat to liquid crystal display panel.
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 projector;
fig. 2 is a schematic perspective view of a projection heat dissipation device according to an embodiment of the present disclosure;
fig. 3 is an exploded schematic view of a projection heat sink according to an embodiment of the present disclosure;
fig. 4 is a first schematic cross-sectional structural diagram of a projection heat dissipation apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic cross-sectional structural diagram of a projection heat dissipation apparatus according to an embodiment of the present application;
fig. 6 is a heat dissipation schematic diagram of a projection heat dissipation device according to an embodiment of the present application.
Description of reference numerals:
1-liquid crystal panel, 2-centrifugal fan, 21-air outlet, 22-strong air area, 23-weak air area, 100-shell, 110-containing cavity, 120-inlet, 130-outlet, 140-first slot, 150-second slot, 160-third slot, 170-projection port, 200-liquid crystal panel, 300-air guide pipeline, 310-guide plate, 311-vent hole, 312-extension part, 320-straight vent channel, 400-heat dissipation fan, 410-air outlet, 420-strong air area, 430-weak air area, 500-first optical piece, 600-second optical piece and 700-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 provided solely for the purposes of reference and illustration and are not intended 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 this application will be understood to be a specific case for 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 and fig. 3, an embodiment of the present application provides a projection heat dissipation device, including a liquid crystal panel 200, a heat dissipation fan 400 and a baffle 310, wherein the heat dissipation fan 400 is disposed at one side of the liquid crystal panel 200, and the baffle 310 is disposed between an air outlet 410 of the heat dissipation fan 400 and the liquid crystal panel 200.
As shown in fig. 4 and 5, the heat dissipation fan 400 has an air outlet 410, the air outlet 410 faces the liquid crystal panel 200, the air outlet 410 includes a strong wind area 420 and a weak wind area 430, the weak wind area 430 is disposed on one side of the strong wind area 420, and the strong wind area 420 and the weak wind area 430 respectively correspond to two opposite sides of the liquid crystal panel 200. The guide plate 310 extends from the strong wind area 420 side to the weak wind area 430 side, and the guide plate 310 is provided with a plurality of vent holes 311; wherein the number of vent holes 311 corresponding to the strong wind zone 420 side is less than the number of vent holes 311 corresponding to the weak wind zone 430 side.
Under this structure, because the number of the vent holes 311 corresponding to the strong wind area 420 side is less than the number of the vent holes 311 corresponding to the weak wind area 430 side, a part of the airflow of the strong wind area 420 can be guided to the weak wind area 430 and blown to the liquid crystal panel 200 through the vent holes 311 corresponding to the weak wind area 430 side, so that the heat dissipation strength of the liquid crystal panel 200 corresponding to the weak wind area 430 side can be improved, the heat dissipation strength of the liquid crystal panel 200 corresponding to the strong wind area 420 side and the heat dissipation strength of the liquid crystal panel 430 side are similar, and uniform heat dissipation is performed on the liquid crystal panel 200.
Further, as shown in fig. 3, in the baffle plate 310, the distribution density of the vent holes 311 is gradually increased in a direction from the strong wind zone 420 side toward the weak wind zone 430 side. With this structure, in the air guide plate 310, the distribution density of the vent holes 311 closer to the strong wind zone 420 is lower, so that the airflow transmittance at the strong wind zone 420 side can be reduced, and part of the airflow at the strong wind zone 420 side can be guided and branched to the weak wind zone 430 side; the distribution density of the vent holes 311 closer to the weak wind area 430 is higher, so that the airflow transmittance of the weak wind area 430 is increased, and the airflow passing probability of the weak wind area 430 is increased; through the arrangement, the airflow can be uniformly blown to the liquid crystal panel 200, and the uniformity of air cooling and heat dissipation of the liquid crystal panel 200 is further improved.
Optionally, in the baffle plate 310, the aperture of the vent hole 311 corresponding to the strong wind zone 420 side is smaller than the aperture of the vent hole 311 corresponding to the weak wind zone 430 side. With this structure, by reducing the aperture of the vent hole 311 on the strong wind zone 420 side, the airflow transmittance on the strong wind zone 420 side can be reduced, and part of the airflow on the strong wind zone 420 side is guided to be branched to the weak wind zone 430 side; by increasing the aperture of the vent hole 311 on the weak wind area 430 side, the airflow transmittance on the weak wind area 430 side can be increased, and the probability of the airflow passing on the weak wind area 430 side can be increased; through the arrangement, the air flow can be uniformly blown to the liquid crystal panel 200, and the air cooling and heat dissipation uniformity of the liquid crystal panel 200 is improved.
Further, in the baffle plate 310, the aperture of the vent hole 311 is gradually increased in a direction from the strong wind zone 420 side toward the weak wind zone 430 side. With this structure, in the air deflector 310, the aperture of the vent hole 311 closer to the strong wind zone 420 is smaller, so that the airflow transmittance at the strong wind zone 420 side can be reduced, and part of the airflow at the strong wind zone 420 side can be guided and branched to the weak wind zone 430 side; the larger the aperture of the vent hole 311 closer to the weak wind zone 430 side is, the airflow transmittance on the weak wind zone 430 side can be increased, and the airflow passing probability on the weak wind zone 430 side can be increased; through the arrangement, the airflow can be uniformly blown to the liquid crystal panel 200, and the uniformity of air cooling and heat dissipation of the liquid crystal panel 200 is further improved.
Specifically, as shown in fig. 3, 5 and 6, the projection heat sink further includes a housing 100 and an air duct 300. The housing 100 is disposed at one side of the heat dissipation fan 400, the housing 100 has a receiving cavity 110, and the liquid crystal panel 200 is disposed in the receiving cavity 110. The air duct 300 is disposed between the housing 100 and the heat dissipation fan 400, the air outlet 410 of the heat dissipation fan 400 is communicated with the accommodating cavity 110 through the air duct 300, and the air deflector 310 is disposed in the air duct 300. With this structure, the air guide plate 310 is disposed in the air guide duct 300, so that the airflow of the heat dissipation fan 400 can be converged into the accommodating cavity 110 of the housing 100, thereby ensuring the efficiency of air cooling and heat dissipation.
Specifically, as shown in fig. 4 and 5, an extension 312 is disposed at an end of the diversion plate 310 corresponding to the weak wind area 430, and a straight ventilation duct 320 is formed between the extension 312 and the inner wall of the air guiding duct 300. Under this structure, in the air flow at the weak wind region 430 side (including the air flow guided from the strong wind region 420 side to the weak wind region 430 side and the air flow at the weak wind region 430 side of the cooling fan 400), when part of the air flow is blocked by the guide plate 310 and cannot pass through the vent hole 311, the part of the air flow is guided to the straight air passage 320 by the guide plate 310, so as to further increase the flow rate of the air flow at the weak wind region 430 side, thereby improving the cooling strength of the part of the liquid crystal panel 200 corresponding to the weak wind region 430 side, and making the cooling strength of the two parts of the liquid crystal panel 200 corresponding to the strong wind region 420 side and the weak wind region 430 side similar, thereby performing uniform cooling on the liquid crystal panel 200.
Specifically, as shown in fig. 6, the liquid crystal panel 200 is suspended in the accommodating cavity 110. Under the structure, the liquid crystal panel 200 is suspended in the accommodating cavity 110, so that the contact area between the liquid crystal panel 200 and the air flow can be increased, and the cooling effect of the liquid crystal panel 200 can be improved.
In some embodiments of the present application, as shown in fig. 3, the first slot 140 is disposed on the inner wall of the accommodating cavity 110, and the edge of the liquid crystal panel 200 is inserted into the first slot 140, so that the liquid crystal panel 200 is installed in the accommodating cavity 110, and the liquid crystal panel 200 is easy and convenient to assemble, which is beneficial to improving the assembly efficiency of the projection heat dissipation apparatus.
Specifically, as shown in fig. 6, an inlet 120 and an outlet 130 are respectively disposed at two opposite sides of the casing 100, and the air guide duct 300 is sequentially communicated with the outlet 130 through the inlet 120 and the receiving cavity 110. With this structure, the airflow can sequentially flow through the inlet 120 and the accommodating cavity 110 from the air duct 300, and is finally discharged from the outlet 130, so as to take away the heat of the liquid crystal panel 200 and realize air cooling heat dissipation.
Specifically, as shown in fig. 6, the projection heat sink further includes a first optical member 500. The first optical element 500 is disposed in the accommodating cavity 110, the first optical element 500 is located above the liquid crystal panel 200, a first heat dissipation channel is formed between the first optical element 500 and the liquid crystal panel 200, and the air guiding duct 300 is communicated with the outlet 130 sequentially through the inlet 120 and the first heat dissipation channel. With this structure, the air flow can sequentially flow through the inlet 120 and the first heat dissipation channel from the air duct 300, and finally 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.
In some embodiments of the present application, as shown in fig. 3, the second slot 150 is disposed on the inner wall of the receiving cavity 110, and the edge of the first optical element 500 is inserted into the second slot 150, so that the first optical element 500 is mounted on the housing 100, and the first optical element 500 is easy and convenient to assemble, which is beneficial to improving the assembly efficiency of the projection cooling system.
Specifically, as shown in fig. 6, the projection heat sink further includes a second optical member 600. The second optical element 600 is disposed in the accommodating cavity 110, the second optical element 600 is located below the liquid crystal panel 200, a second heat dissipation channel is formed between the second optical element 600 and the liquid crystal panel 200, and the air guiding duct 300 is sequentially communicated with the outlet 130 through the inlet 120 and the second heat dissipation channel. With this structure, the air flow can sequentially flow through the inlet 120 and the second heat dissipation channel from the air duct 300, and finally 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 below, thereby achieving air-cooled heat dissipation.
In some embodiments of the present disclosure, as shown in fig. 3, the third slot 160 is disposed on the inner wall of the accommodating cavity 110, and the edge of the second optical element 600 is inserted into the third slot 160, so as to mount the second optical element 600 on the housing 100, which is convenient for assembling the second optical element 600, and is beneficial to improving the assembling efficiency of the projection heat dissipation system.
In the embodiment of the present application, the heat dissipation fan 400 includes a housing 100, an impeller, and a driving member, and the housing 100 is provided with an air inlet and an air outlet 410. The impeller is rotatably connected in the casing 100, the driving member is fixed in the casing 100, and the output end of the driving member is connected with the impeller. 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 410. In this embodiment, the driving member may be, but is not limited to, a micro motor.
Specifically, as shown in fig. 2 and fig. 6, the projection heat dissipation system further includes a reflector 700, the reflector 700 is disposed in the accommodating cavity 110, and the reflector 700 is obliquely disposed on a side of the first optical element 500 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 500, reaches the reflector 700, is reflected, and finally exits from the projection port 170.
The application also provides a projector which comprises the projection heat dissipation device. Since the projector according to the embodiment of the present application includes the technical solutions of all the embodiments, the projector according to the embodiment of the present application also has the beneficial effects of all the embodiments, and repeated description is omitted here.
Throughout the description and claims of this application, the words "comprise" and the words "have/include" and variations of these words, for specifying the presence of stated features, values, steps or components but not excluding 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, some features of the present 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 heat sink, comprising:
a liquid crystal panel;
the cooling fan is arranged on one side of the liquid crystal panel and provided with an air outlet, the air outlet faces the liquid crystal panel, the air outlet comprises a strong wind area and a weak wind area, and the weak wind area is arranged on one side of the strong wind area; and
the guide plate is arranged between the air outlet of the cooling fan and the liquid crystal panel, extends from the strong wind area side to the weak wind area side, and is provided with a plurality of ventilation holes; the number of the ventilation holes corresponding to the strong wind zone side is less than the number of the ventilation holes corresponding to the weak wind zone side.
2. The projected heat sink of claim 1, wherein the distribution density of the ventilation holes in the air deflector increases in a direction from the strong wind region side toward the weak wind region side.
3. The projected heat sink of claim 1 wherein the aperture of the vent hole corresponding to the strong wind zone side is smaller than the aperture of the vent hole corresponding to the weak wind zone side in the baffle.
4. The projected heat sink of claim 3, wherein the aperture of the ventilation holes in the air guide plate increases in a direction from the strong wind region side toward the weak wind region side.
5. The projection heat sink of any of claims 1-4, further comprising:
the shell is arranged on one side of the radiating fan, the shell is provided with an accommodating cavity, and the liquid crystal panel is arranged in the accommodating cavity;
the air guide pipeline is arranged between the shell and the heat dissipation fan, an air outlet of the heat dissipation fan is communicated with the accommodating cavity through the air guide pipeline, and the guide plate is arranged in the air guide pipeline.
6. The projection heat sink as claimed in claim 5, wherein an extension portion is disposed at an end of the air deflector corresponding to the weak wind region, and a straight ventilation duct is defined between the extension portion and an inner wall of the air guiding duct.
7. The projection heat sink as claimed in claim 5, wherein the liquid crystal panel is suspended in the accommodating chamber.
8. The projection heat sink as claimed in claim 5, wherein the housing has an inlet and an outlet on opposite sides thereof, and the air duct is connected to the outlet through the inlet and the receiving cavity in sequence.
9. The projection heat sink of claim 8, further comprising:
the first optical piece is arranged in the accommodating cavity, the first optical piece is 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 air guide pipeline is communicated with the outlet through the inlet and the first heat dissipation channel in sequence;
the second optical piece is arranged in the accommodating 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 air guide pipeline is communicated with the outlet through the inlet and the second heat dissipation channel in sequence.
10. A projector comprising the projection heat sink according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320063237.9U CN218848558U (en) | 2023-01-10 | 2023-01-10 | Projection heat dissipation device and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320063237.9U CN218848558U (en) | 2023-01-10 | 2023-01-10 | Projection heat dissipation device and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218848558U true CN218848558U (en) | 2023-04-11 |
Family
ID=87309634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320063237.9U Active CN218848558U (en) | 2023-01-10 | 2023-01-10 | Projection heat dissipation device and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218848558U (en) |
-
2023
- 2023-01-10 CN CN202320063237.9U patent/CN218848558U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107589592B (en) | Heat dissipation structure for backlight module and backlight module | |
| CN109812873B (en) | Cabinet type air conditioner indoor unit | |
| CN108224566B (en) | Air supply assembly and cabinet air conditioner indoor unit with same | |
| CN108413497B (en) | Indoor unit of cabinet air conditioner | |
| CN209877134U (en) | Air supply assembly and cabinet air conditioner indoor unit with same | |
| CN218848558U (en) | Projection heat dissipation device and projector | |
| CN208655731U (en) | Battery pack with radiator | |
| CN106839086B (en) | Fan coil unit | |
| CN109323332B (en) | Indoor unit of air conditioner | |
| CN215117143U (en) | Heat radiation structure of projector | |
| CN211011643U (en) | Integral air conditioner | |
| CN210141634U (en) | Air outlet assembly and air conditioner | |
| JPH10108323A (en) | Switchboard | |
| CN218886389U (en) | Projection cooling system and projection equipment | |
| CN113068369B (en) | Air guide assembly, air guide device and cabinet | |
| CN114526517A (en) | Outdoor unit and heat pump system | |
| CN109780630B (en) | Indoor unit of air conditioner | |
| CN108224564B (en) | Air supply assembly and cabinet air conditioner indoor unit with same | |
| CN210959271U (en) | Circuit board cooling structure of water heating heater | |
| CN219799973U (en) | Radiating structure of projector and projector | |
| CN218068553U (en) | Single-chip LCD projection optical machine and projector | |
| CN215820644U (en) | Cooking appliance and hot air assembly thereof | |
| CN218936511U (en) | Air conditioner external unit and air conditioner | |
| CN219958060U (en) | Projector lens support with air guiding function and projector | |
| CN220059952U (en) | Centrifugal fan and air cooling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |