CN220586541U - Display backboard component heat dissipation structure and backboard component - Google Patents
Display backboard component heat dissipation structure and backboard component Download PDFInfo
- Publication number
- CN220586541U CN220586541U CN202321522919.8U CN202321522919U CN220586541U CN 220586541 U CN220586541 U CN 220586541U CN 202321522919 U CN202321522919 U CN 202321522919U CN 220586541 U CN220586541 U CN 220586541U
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- back plate
- mounting box
- display screen
- display
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model belongs to the technical field of display backboard, in particular to a heat dissipation structure of a display backboard component and a backboard component, comprising the following components: the front end face of the backboard is provided with two notches, and each notch is provided with a mounting box; the bottom of the mounting box is provided with a sliding groove, the bottom of the mounting box is connected with a placing plate in a sliding way, the lower end part of the placing plate is fixedly provided with a sliding block, the sliding block is positioned in the sliding groove, the upper end part of the placing plate is fixedly provided with a motor, and the output end of the motor is fixedly provided with an exhaust fan; the clamping groove is formed in one end of the mounting box, which is located at the notch, the plug cover is detachably connected to one end of the mounting box, which is in contact with the mounting box, the clamping block is fixedly connected to one end of the plug cover, which is in contact with the mounting box, and the clamping block is matched with the clamping groove; the device installs the mounting box at the side of backplate, then sets up motor and exhaust fan in the mounting box, drives the exhaust fan through the motor and operates, can be timely discharge the heat that the display screen during operation produced outside the display screen.
Description
Technical Field
The utility model belongs to the technical field of display backboard, and particularly relates to a heat dissipation structure of a display backboard assembly and a backboard assembly.
Background
The display is common household equipment in daily life, and a large amount of heat can be produced in the use of display, and heat discharge can influence the life of display if not in time.
At present, most of the radiating structures of the display backboard are that a plurality of radiating holes are formed in the side end of the display backboard to radiate heat, the radiating holes can cause the surface area ash of the radiating holes in the long-time use process, thereby influencing the radiating effect of the display backboard, further causing the condition of high temperature of internal components of the display, the high temperature can influence the service life of the internal components of the display, meanwhile, the display Huang Bing, a dark screen and even bulges are easily caused, the performance of the display is influenced, in addition, the existing display backboard is of a most integrated structure, the disassembly and the assembly are inconvenient, the display backboard can only be fixed on a wall surface or a plane, the installation is not flexible enough, and the user needs to move the display quite troublesome.
Therefore, we propose a heat dissipation structure of a back plate assembly of a display and a back plate assembly.
Disclosure of Invention
To the not enough of prior art, the aim at of this disclosure provides a display backplate subassembly heat radiation structure and backplate subassembly, the device is through installing two install the case in the cavity that backplate and display screen formed, at install the exhaust fan in the install the case, can discharge the heat that the display screen during operation produced through the exhaust fan, set up to detachable connection between the cock cap and the backplate of installing case department simultaneously for in daily use, can be periodic dismantle the cock cap from the backplate and wash, thereby clear away the dust on the cock cap, prevent that the dust from piling up.
The purpose of the disclosure can be achieved by the following technical scheme:
a display backplane assembly heat dissipation structure comprising:
the front end face of the backboard is provided with two notches, each notch of the backboard is fixedly provided with a mounting box, one end of the mounting box, which is positioned at the notch, is in an open state, and one end of the mounting box, which is far away from the notch, is positioned in a cavity formed by the backboard and the display screen;
the bottom of the installation box is provided with a sliding groove, the bottom of the installation box is connected with a placement plate in a sliding manner, the lower end part of the placement plate is fixedly provided with a sliding block, the sliding block is positioned in the sliding groove, the upper end part of the placement plate is fixedly provided with a motor, and the output end of the motor is fixedly provided with an exhaust fan; the clamping groove is formed in one end of the installation box, which is located at the notch, the plug cover is detachably connected to one end of the installation box, which is located at the notch, the clamping block is fixedly connected to one end of the plug cover, which is in contact with the installation box, and the clamping block is matched with the clamping groove.
Based on the technical scheme, the application principle and the generated technical effects are as follows:
the device is through installing two install bin in the cavity that backplate and display screen formed, at install the exhaust fan in the install bin, can be with the heat discharge that the display screen during operation produced through the exhaust fan, set up to the detachable connection between the cock cap and the backplate of install bin department simultaneously for in daily use, can be periodic dismantle the cock cap from backplate side and come to wash, thereby clear away the dust on the cock cap, prevent that the dust from piling up.
Further, a plurality of side ends of the mounting box, which are positioned in the cavity formed by the back plate and the display screen, are provided with heat dissipation holes.
Further, connecting blocks are fixedly connected to two side ends of the plug cover respectively, and a threaded hole is formed in the front end face of each connecting block; the plug cover is in threaded connection with the backboard through a plurality of first screws.
Further, the front end face of the plug cover is provided with a plurality of sieve holes, and the aperture of each sieve hole is smaller than that of the radiating hole.
A backboard assembly comprises a heat dissipation structure and a backboard.
Further, one end of the backboard, which is far away from the mounting box, is fixedly connected with a connecting plate, and the connecting plate is slidably connected in a sliding rail at the rear end part of the display screen.
Further, the backboard is in threaded connection with the display screen through a plurality of second screws, and the connection part of the second screws is positioned at the sliding rail of the rear end part of the display screen.
The noun, conjunctive or adjective parts referred to in the above technical solutions are explained as follows:
and (3) fixedly connecting: refers to a connection without any relative movement after the parts or components are secured. The device is divided into a detachable connection type and a non-detachable type.
(1) The detachable connection is to fix the parts together by screw, spline, wedge pin, etc. The connection mode can be disassembled during maintenance, and parts cannot be damaged. The connector used must be of the correct size (e.g. length of bolt, key) and tightened properly.
(2) The non-detachable connection and the non-detachable connection mainly refer to welding, riveting, tenon passing matching and the like. Because the parts can be disassembled only by forging, sawing or oxygen cutting during maintenance or replacement, the parts cannot be used for a second time generally. Also, during connection, attention should be paid to process quality, technical inspection and remedial measures (e.g., correction, polishing, etc.).
The beneficial effects of the present disclosure are:
1. the device is provided with the mounting box at the side end of the backboard, then the motor and the exhaust fan are arranged in the mounting box, and the motor drives the exhaust fan to operate, so that heat generated when the display screen works can be timely discharged out of the display screen;
2. in the device, the sliding rail is arranged at the rear end part of the display screen, the connecting plate matched with the sliding rail is arranged at one end of the backboard, which is contacted with the display screen, and the connecting plate is detachably connected with the sliding rail of the display screen, so that the backboard and the display screen are convenient to detach and install; when the electrical components in the backboard are damaged, the damaged electrical components are convenient to maintain or replace; and meanwhile, the display screen can be conveniently disassembled and assembled when the house is moved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of the mounting box according to the embodiment of the present utility model;
FIG. 3 is a schematic view of a plug according to an embodiment of the present utility model;
FIG. 4 is a schematic view of the structure of a back plate according to an embodiment of the present utility model;
FIG. 5 is a schematic view of the structure of the mounting box and the back plate according to the embodiment of the utility model;
FIG. 6 is a cross-sectional view of the entirety of an embodiment of the present utility model;
fig. 7 is an enlarged cross-sectional view at a in fig. 6 according to an embodiment of the present utility model.
In the figure: 1. a back plate; 2. a notch; 3. a mounting box; 4. a display screen; 5. a chute; 6. placing a plate; 7. a slide block; 8. a motor; 9. an exhaust fan; 10. a clamping groove; 11. a plug cover; 12. a clamping block; 13. a heat radiation hole; 14. a connecting block; 15. a threaded hole; 16. a first screw; 17. a sieve pore; 18. a connecting plate; 19. a slide rail; 20. and a second screw.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to fall within the scope of this disclosure.
Embodiments of a heat dissipation structure for a display back plate assembly and a back plate assembly according to the concepts of the present application are described herein with reference to fig. 1-7. Specifically, the display backboard component heat dissipation structure comprises a backboard 1, a notch 2, a mounting box 3, a display screen 4, a sliding chute 5, a placing plate 6, a sliding block 7, a motor 8, an exhaust fan 9, a clamping groove 10, a plug cover 11, a clamping block 12 and other components, wherein the device is used for mounting two mounting boxes 3 in a cavity formed by the backboard 1 and the display screen 4, arranging the exhaust fan 9 in the mounting box 3, exhausting heat generated during the operation of the display screen 4 through the exhaust fan 9, and simultaneously arranging the plug cover 11 at the mounting box 3 to be detachably connected with the backboard 1, so that in daily use, the plug cover 11 can be regularly detached from the backboard 1 for cleaning, thereby removing dust on the plug cover 11 and preventing dust accumulation.
A heat dissipation structure for a display back plate assembly, as shown in fig. 1-7, comprising:
the back plate 1, two notches 2 are formed in the front end face of the back plate 1, a mounting box 3 is fixedly mounted at each notch 2 of the back plate 1, one end of the mounting box 3 located at the notch 2 is in an open state, and one end of the mounting box 3 away from the notch 2 is located in a cavity formed by the back plate 1 and the display screen 4; in the device, the installation box 3 is used for placing the exhaust fan 9 in the installation box 3, and the installation box 3 is positioned in a cavity formed by the back plate 1 and the display screen 4, so that the exhaust fan 9 positioned in the installation box 3 is convenient for exhausting heat generated by electric components in the back plate 1 out of the back plate 1;
a sliding chute 5 is formed in the bottom of the mounting box 3, a placing plate 6 is connected to the bottom of the mounting box 3 in a sliding manner, a sliding block 7 is fixedly arranged at the lower end part of the placing plate 6, the sliding block 7 is positioned in the sliding chute 5, a motor 8 is fixedly arranged at the upper end part of the placing plate 6, and an exhaust fan 9 is fixedly arranged at the output end of the motor 8; a clamping groove 10 is formed in one end of the mounting box 3, which is positioned at the notch 2, a plug cover 11 is detachably connected to one end of the mounting box 3, which is positioned at the notch 2, a clamping block 12 is fixedly connected to one end of the plug cover 11, which is contacted with the mounting box 3, and the clamping block 12 is matched with the clamping groove 10; the device drives the exhaust fan 9 to run through the motor 8, so that heat in the backboard 1 is exhausted through the exhaust fan 9, the placing plate 6 provided with the motor 8 is slidably connected to the bottom of the installation box 3, so that the placing plate 6 can be pulled out of the placement box, when the motor 8 is damaged, the placing plate 6 can be pulled out to repair the motor 8, and meanwhile, when the blade surface of the exhaust fan 9 is covered with dust, the placing plate 6 can be pulled out to clean the dust on the blade surface; the plug cover 11 is detachably connected with the backboard 1, so that the plug cover 11 is convenient to detach from the backboard 1 for cleaning.
Specifically: the device is through installing two mounting boxes 3 in the cavity that backplate 1 and display screen 4 formed, installation exhaust fan 9 in mounting box 3, can discharge the heat that display screen 4 during operation produced through exhaust fan 9, set up to dismantling between the cock cap 11 of mounting box 3 department and backplate 1 simultaneously and be connected for in daily use, can regularly dismantle cock cap 11 from backplate 1 and wash, thereby clear away the dust on the cock cap 11, prevent that the dust from piling up.
As shown in fig. 2, a plurality of side ends of the installation box 3, which are positioned in the cavity formed by the back plate 1 and the display screen 4, are provided with heat dissipation holes 13; the device is provided with the radiating holes 13 at the side end of the mounting box 3 positioned in the cavity, so that heat generated during operation of components in the backboard 1 can flow to the mounting box 3 directly through the radiating holes 13, and then the backboard 1 is discharged under the action of the exhaust fan 9.
As shown in fig. 3, two side ends of the plug cover 11 are respectively and fixedly connected with connecting blocks 14, and a threaded hole 15 is formed in the front end surface of each connecting block 14; the plug cover 11 is in threaded connection with the backboard 1 through a plurality of first screws 16; the connection block 14 is arranged to facilitate the threaded connection between the plug 11 and the back plate 1, so that the plug 11 can be removed from the back plate 1 at regular intervals to clean the plug 11.
As shown in fig. 3 and 7, the front end surface of the plug cover 11 is provided with a plurality of sieve holes 17, and the aperture of the sieve holes 17 is smaller than the aperture of the heat dissipation holes 13; the mesh openings 17 are provided so that heat flowing into the back plate 1 toward the mounting box 3 flows out of the back plate 1 through the mesh openings 17.
As shown in fig. 1, a back plate assembly includes a heat dissipation structure and a back plate 1.
As shown in fig. 1 and 6, a connecting plate 18 is fixedly connected to one end of the backboard 1 away from the mounting box 3, and the connecting plate 18 is slidably connected in a sliding rail 19 at the rear end of the display screen 4; the backboard 1 is in threaded connection with the display screen 4 through a plurality of second screws 20, and the connection position of the second screws 20 is located at a sliding rail 19 at the rear end part of the display screen 4. In the device, the sliding rail 19 is arranged at the rear end part of the display screen 4, the connecting plate 18 matched with the sliding rail 19 is arranged at one end of the backboard 1 contacted with the display screen 4, and the connecting plate 18 is detachably connected with the sliding rail 19 of the display screen 4, so that the backboard 1 and the display screen 4 are convenient to detach and install; when the electrical components in the backboard 1 are damaged, the damaged electrical components are convenient to repair or replace; and meanwhile, the display screen 4 is convenient to disassemble and assemble when the user moves.
The utility model provides a heat dissipation structure of a back plate assembly of a display and a back plate assembly thereof, which are further described below with reference to the accompanying drawings and embodiments.
A heat dissipation structure for a display back plate assembly, as shown in fig. 1-7, comprising:
the back plate 1, two notches 2 are formed in the front end face of the back plate 1, a mounting box 3 is fixedly mounted at each notch 2 of the back plate 1, one end of the mounting box 3 located at the notch 2 is in an open state, and one end of the mounting box 3 away from the notch 2 is located in a cavity formed by the back plate 1 and the display screen 4;
a sliding chute 5 is formed in the bottom of the mounting box 3, a placing plate 6 is connected to the bottom of the mounting box 3 in a sliding manner, a sliding block 7 is fixedly arranged at the lower end part of the placing plate 6, the sliding block 7 is positioned in the sliding chute 5, a motor 8 is fixedly arranged at the upper end part of the placing plate 6, and an exhaust fan 9 is fixedly arranged at the output end of the motor 8; the draw-in groove 10 has been seted up to the one end that installation case 3 is located notch 2 department, and the one end that installation case 3 is located notch 2 department can be dismantled and be connected with cock cap 11, and cock cap 11 and the one end fixedly connected with fixture block 12 of installation case 3 contact, fixture block 12 and draw-in groove 10 looks adaptation.
As shown in fig. 2, the heat dissipation holes 13 are formed at a plurality of side ends of the installation box 3 in the cavity formed by the back plate 1 and the display screen 4.
As shown in fig. 3, two side ends of the plug cover 11 are respectively and fixedly connected with connecting blocks 14, and a threaded hole 15 is formed in the front end surface of each connecting block 14; the plug 11 is screwed with the back plate 1 by a plurality of first screws 16.
As shown in fig. 3 and 7, the front end surface of the plug 11 is provided with a plurality of mesh openings 17, and the aperture diameter of the mesh openings 17 is smaller than the aperture diameter of the heat dissipation holes 13.
As shown in fig. 1, a back plate assembly includes a heat dissipation structure and a back plate 1.
As shown in fig. 1, a connecting plate 18 is fixedly connected to one end of the back plate 1 away from the mounting box 3, and the connecting plate 18 is slidably connected in a sliding rail 19 at the rear end of the display screen 4.
As shown in fig. 1 and 6, the back plate 1 and the display screen 4 are connected by a plurality of second screws 20, and the connection position of the second screws 20 is positioned at a sliding rail 19 at the rear end part of the display screen 4.
The working principle and the using flow of the utility model are as follows:
in the device, heat generated during the operation of a display screen 4 flows into a mounting box 3 through a radiating hole 13 at the side end of the mounting box 3, then an exhaust fan 9 is driven by a motor 8 to operate so as to discharge the heat flowing into the mounting box 3 to the outside of the display screen 4 from a sieve hole 17 at the side end of a plug cover 11, a placing plate 6 for installing the motor 8 and the exhaust fan 9 is slidably connected to the bottom of the mounting box 3, when the motor 8 is damaged, the placing plate 6 can be pulled out of the mounting box 3, so that the motor 8 is maintained, and meanwhile, if the fan blade surface layer of the exhaust fan 9 is covered with more dust to influence the fan heat effect of the exhaust fan 9, the placing plate 6 can be pulled out of the mounting box 3 so as to clean the fan blades; the rear end part of the display screen 4 is provided with the slide rail 19, one end of the backboard 1, which is in contact with the display screen 4, is provided with the connecting plate 18 matched with the slide rail 19, and the connecting plate 18 is detachably connected with the slide rail 19 of the display screen 4, so that the backboard 1 and the display screen 4 are convenient to detach and install; when the electrical components in the backboard 1 are damaged, the damaged electrical components are convenient to repair or replace; and meanwhile, the display screen 4 is convenient to disassemble and assemble when the user moves.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which have been described in the foregoing and description merely illustrates the principles of the disclosure, and that various changes and modifications may be made therein without departing from the spirit and scope of the disclosure, which is defined in the appended claims.
Claims (7)
1. A display back plate assembly heat dissipation structure, comprising:
the back plate (1), two notches (2) are formed in the front end face of the back plate (1), each notch (2) of the back plate (1) is fixedly provided with a mounting box (3), one end of each mounting box (3) located at the notch (2) is in an open state, and one end of each mounting box (3) away from the notch (2) is located in a cavity formed by the back plate (1) and the display screen (4);
the bottom of the installation box (3) is provided with a sliding groove (5), the bottom of the installation box (3) is connected with a placement plate (6) in a sliding manner, the lower end part of the placement plate (6) is fixedly provided with a sliding block (7), the sliding block (7) is positioned in the sliding groove (5), the upper end part of the placement plate (6) is fixedly provided with a motor (8), and the output end of the motor (8) is fixedly provided with an exhaust fan (9); clamping grooves (10) are formed in one end, located at the notch (2), of the installation box (3), a plug cover (11) is detachably connected to one end, located at the notch (2), of the installation box (3), a clamping block (12) is fixedly connected to one end, in contact with the installation box (3), of the plug cover (11), and the clamping block (12) is matched with the clamping grooves (10).
2. The heat dissipation structure of a display back plate assembly according to claim 1, wherein the plurality of side ends of the mounting box (3) in the cavity formed by the back plate (1) and the display screen (4) are provided with heat dissipation holes (13).
3. The heat dissipation structure of a display back plate assembly according to claim 1, wherein two side ends of the plug cover (11) are fixedly connected with connecting blocks (14) respectively, and a threaded hole (15) is formed in a front end face of each connecting block (14); the plug cover (11) is in threaded connection with the back plate (1) through a plurality of first screws (16).
4. The heat dissipation structure of a display back plate assembly according to claim 1, wherein a plurality of sieve holes (17) are formed in a front end surface of the plug cover (11), and the aperture diameter of the sieve holes (17) is smaller than that of the heat dissipation holes (13).
5. A back plate assembly, characterized by comprising a heat dissipating structure according to any of claims 1-4 and a back plate (1).
6. A back plate assembly according to claim 5, wherein the end of the back plate (1) remote from the mounting box (3) is fixedly connected with a connecting plate (18), and the connecting plate (18) is slidably connected in a sliding rail (19) at the rear end of the display screen (4).
7. A back plate assembly according to claim 5, wherein the back plate (1) and the display screen (4) are connected by a plurality of second screws (20), and the connection part of the second screws (20) is positioned at a sliding rail (19) at the rear end part of the display screen (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522919.8U CN220586541U (en) | 2023-06-15 | 2023-06-15 | Display backboard component heat dissipation structure and backboard component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522919.8U CN220586541U (en) | 2023-06-15 | 2023-06-15 | Display backboard component heat dissipation structure and backboard component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220586541U true CN220586541U (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321522919.8U Active CN220586541U (en) | 2023-06-15 | 2023-06-15 | Display backboard component heat dissipation structure and backboard component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220586541U (en) |
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2023
- 2023-06-15 CN CN202321522919.8U patent/CN220586541U/en active Active
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