CN219008148U - Unmanned aerial vehicle battery heat dissipation power supply system and unmanned aerial vehicle battery - Google Patents
Unmanned aerial vehicle battery heat dissipation power supply system and unmanned aerial vehicle battery Download PDFInfo
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- CN219008148U CN219008148U CN202223412105.7U CN202223412105U CN219008148U CN 219008148 U CN219008148 U CN 219008148U CN 202223412105 U CN202223412105 U CN 202223412105U CN 219008148 U CN219008148 U CN 219008148U
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Abstract
The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a heat dissipation and power supply system of an unmanned aerial vehicle battery and an unmanned aerial vehicle battery, wherein the unmanned aerial vehicle battery comprises an unmanned aerial vehicle, a containing cavity is arranged on the unmanned aerial vehicle, a battery heat dissipation and power supply system is arranged in the containing cavity, the battery heat dissipation and power supply system comprises a heat dissipation mechanism, the heat dissipation mechanism is arranged in the containing cavity, and the heat dissipation mechanism is used for dissipating heat of the unmanned aerial vehicle; the power supply mechanism is arranged in the accommodating cavity, is electrically connected with the heat dissipation mechanism and supplies power for the heat dissipation mechanism; the power supply mechanism comprises a battery compartment and an unmanned aerial vehicle battery, wherein two unmanned aerial vehicle batteries are arranged on the unmanned aerial vehicle battery, one unmanned aerial vehicle battery is used for supplying power to electric equipment of the unmanned aerial vehicle, and the other unmanned aerial vehicle battery is arranged in the battery compartment and supplies power to the heat dissipation mechanism. The utility model improves the power supply efficiency of the unmanned aerial vehicle battery and the cruising ability of the unmanned aerial vehicle.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a heat dissipation and power supply system for an unmanned aerial vehicle battery and the unmanned aerial vehicle battery.
Background
Unmanned aerial vehicles, abbreviated as "unmanned aerial vehicles", abbreviated as "UAVs", are unmanned aerial vehicles that are operated by means of radio remote control devices and self-contained programmed control devices, or are operated autonomously, either entirely or intermittently, by an onboard computer.
The Chinese patent with the authorized bulletin number of 202120108351.X discloses a multifunctional heat dissipating device for an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, wherein a heat dissipating bottom plate is installed on the outer wall of the bottom of the unmanned aerial vehicle body through bolts, an installation opening is formed in the outer wall of the bottom of the heat dissipating bottom plate, the installation opening penetrates into the unmanned aerial vehicle body, a dust screen is installed on the inner wall of one side of the installation opening through bolts, an EC exhaust fan is installed on the outer wall of the top of the heat dissipating bottom plate, close to the center, through the bolts, and the EC exhaust fan is located right above the installation opening, and a plurality of annular grooves are formed in the outer wall of the top of the heat dissipating bottom plate.
The heat that produces when the inside electric operation of mounting bracket can be absorbed through the fin that sets up to above-mentioned patent, the air cycle of air discharge fan inside can accelerate the unmanned aerial vehicle body to can discharge the heat on the fin, thereby can reduce unmanned aerial vehicle battery's temperature, prevent that the battery from taking place because of the condition that the temperature is too high leads to the explosion in the use, increase battery's life. However, the unmanned aerial vehicle battery in the patent needs to supply power for the electric equipment and the exhaust fan of the unmanned aerial vehicle at the same time, so that the energy consumption of the unmanned aerial vehicle battery is greatly increased, and the cruising ability of the unmanned aerial vehicle is reduced.
Disclosure of Invention
The utility model aims to provide a battery heat dissipation power supply system for an unmanned aerial vehicle and a battery of the unmanned aerial vehicle, and aims to solve the technical problems that in the prior art, the battery of the unmanned aerial vehicle is required to supply power for electric equipment and an exhaust fan of the unmanned aerial vehicle at the same time, so that the energy consumption of the battery of the unmanned aerial vehicle is greatly increased, and the cruising ability of the unmanned aerial vehicle is reduced.
In order to achieve the above object, an embodiment of the present utility model provides a battery cooling and power supply system for an unmanned aerial vehicle, including an unmanned aerial vehicle, an accommodating cavity is provided on the unmanned aerial vehicle, a battery cooling and power supply system is provided in the accommodating cavity, the battery cooling and power supply system includes:
the heat dissipation mechanism is arranged in the accommodating cavity and is used for dissipating heat of the unmanned aerial vehicle;
the power supply mechanism is arranged in the accommodating cavity, is electrically connected with the heat dissipation mechanism and supplies power for the heat dissipation mechanism;
wherein, power supply mechanism includes: the battery compartment and the unmanned aerial vehicle battery are provided with two, one unmanned aerial vehicle battery is used for supplying power to electric equipment of the unmanned aerial vehicle, and the other unmanned aerial vehicle battery is arranged in the battery compartment and supplies power to the heat dissipation mechanism.
Optionally, the heat dissipation mechanism includes:
the heat dissipation assembly is electrically connected with the other unmanned aerial vehicle battery, and comprises a heat dissipation frame and a heat dissipation fan arranged on the heat dissipation frame, and the heat dissipation fan is electrically connected with the other unmanned aerial vehicle battery;
the heat dissipation frame comprises two heat dissipation frames, and is characterized in that two flow guide assemblies are arranged and symmetrically arranged on two sides of the heat dissipation frame, and each flow guide assembly comprises a bottom plate, a first flow guide fin and a second flow guide fin which are arranged on the bottom plate.
Optionally, an installation cavity is provided in the middle part of the heat dissipation frame, the heat dissipation fan is rotatably installed in the installation cavity, and the air duct of the heat dissipation fan faces the top of the installation cavity.
Optionally, the bottom plate is connected with an outer side wall of the heat dissipation frame, and the first guide fins and the second guide fins are symmetrically arranged on the bottom plate.
Optionally, the first guide fins and the second guide fins are provided with a plurality of pieces, and the first guide fins and the second guide fins are arranged on the bottom plate at intervals, and a guide air channel is formed on the bottom plate.
Optionally, the first guide fins and the second guide fins have an arc corner, a first guide air channel is formed between two adjacent first guide fins, and a second guide air channel is formed between two adjacent second guide fins.
Optionally, two sides of the heat dissipation frame are provided with diversion holes, and the diversion holes are communicated with the first diversion air duct and the second diversion air duct.
Optionally, be provided with the battery jar in the battery compartment, the battery jar is used for placing unmanned aerial vehicle battery, just the battery jar both sides all are provided with the foam-rubber cushion, the foam-rubber cushion through pasting the mode with the inside wall of battery jar is connected.
Optionally, another unmanned aerial vehicle battery detachably set up in the battery compartment, just battery compartment up end lid has closed battery compartment lid.
Optionally, an unmanned aerial vehicle battery includes: the heat dissipation and power supply system for the unmanned aerial vehicle battery is described above.
The unmanned aerial vehicle battery heat dissipation power supply system and the one or more technical schemes in the unmanned aerial vehicle battery provided by the embodiment of the utility model have at least one of the following technical effects:
through the cooperation of the heat dissipation mechanism and the power supply mechanism, the heat dissipation mechanism can sufficiently dissipate heat for the unmanned aerial vehicle, so that the cruising ability of the unmanned aerial vehicle is improved; and because power supply unit is provided with two unmanned aerial vehicle batteries, its unmanned aerial vehicle battery is supplied power for unmanned aerial vehicle's consumer, and another unmanned aerial vehicle battery is supplied power for cooling mechanism, does not utilize one's unmanned aerial vehicle battery to supply power and dispel the heat, sets up another unmanned aerial vehicle battery alone for cooling mechanism alone and supplies power, has promoted unmanned aerial vehicle battery power supply efficiency, has further improved unmanned aerial vehicle's cruising ability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an internal structure of an unmanned aerial vehicle battery heat dissipation and power supply system according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a power supply mechanism of a heat dissipation power supply system for an unmanned aerial vehicle battery according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a heat dissipation mechanism of a heat dissipation power supply system for an unmanned aerial vehicle battery according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a flow guiding assembly of a heat dissipation and power supply system for an unmanned aerial vehicle battery according to an embodiment of the present utility model.
Wherein, each reference sign in the figure:
1-unmanned aerial vehicle 2-holds chamber 3-battery heat dissipation power supply system
4-heat dissipation mechanism 5-power supply mechanism 6-battery compartment
7-unmanned aerial vehicle battery 8-radiating component 9-radiating frame
10-radiating fan 11-flow guiding component 12-bottom plate
13-first guide fins 14-second guide fins 15-mounting cavity
16-diversion holes 17-first diversion air duct 18-second diversion air duct
19-battery groove 20-foam-rubber cushion 21-battery compartment cover
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.
In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
In the embodiment of the utility model, as shown in fig. 1-2, the battery cooling power supply system for the unmanned aerial vehicle comprises the unmanned aerial vehicle 1, wherein a containing cavity 2 is arranged on the unmanned aerial vehicle 1, a battery cooling power supply system 3 is arranged in the containing cavity 2, the battery cooling power supply system 3 comprises a cooling mechanism 4 and a power supply mechanism 5, and the cooling mechanism 4 is electrically connected with the power supply mechanism 5.
The heat dissipation mechanism 4 is disposed in the accommodating cavity 2, and the heat dissipation mechanism 4 is configured to dissipate heat of the unmanned aerial vehicle 1. The power supply mechanism 5 is disposed in the accommodating cavity 2, the power supply mechanism 5 is electrically connected with the heat dissipation mechanism 4, and the power supply mechanism 5 supplies power to the heat dissipation mechanism 4.
The power supply mechanism 5 comprises a battery compartment 6 and an unmanned aerial vehicle battery 7, wherein two unmanned aerial vehicle batteries 7 are arranged, one unmanned aerial vehicle battery 7 is used for supplying power to electric equipment of the unmanned aerial vehicle 1, and the other unmanned aerial vehicle battery 7 is arranged in the battery compartment 6 and supplies power to the heat dissipation mechanism 4. Through the cooperation of cooling machanism 4 with power supply mechanism 5, cooling machanism 4 can be for unmanned aerial vehicle 1 carries out abundant heat dissipation, and then has improved unmanned aerial vehicle 1's duration. And because the power supply mechanism 5 is provided with two unmanned aerial vehicle battery 7, one unmanned aerial vehicle battery 7 supplies power for the consumer of unmanned aerial vehicle 1, and another unmanned aerial vehicle battery 7 heat dissipation mechanism 4 supplies power, does not utilize one unmanned aerial vehicle battery 7 to supply power and dispel the heat, set up another unmanned aerial vehicle battery 7 alone for heat dissipation mechanism 4 supplies power alone, and then has promoted unmanned aerial vehicle battery 7 power supply efficiency has further improved unmanned aerial vehicle 1's cruising ability.
In this embodiment, as shown in fig. 2, a battery groove 19 is provided in the battery compartment 6, the battery groove 19 is used for placing the unmanned aerial vehicle battery 7, and sponge pads 20 are provided on both sides of the battery groove 19, and the sponge pads 20 are connected with the inner side walls of the battery groove 19 in a pasting manner, and since the sponge pads 20 are pasted on the side walls of the battery groove 19, the sponge pads 20 play a role in shock absorption and protection of the unmanned aerial vehicle battery 7 when the battery compartment 6 moves, and further ensure the usability of the unmanned aerial vehicle battery 7.
The other unmanned aerial vehicle battery 7 detachable set up in the battery compartment 6, just battery compartment 6 up end lid has closed battery compartment lid 21, works as unmanned aerial vehicle battery 7 places in the battery compartment 6, battery compartment lid 21 can be closed battery compartment 6 can be right unmanned aerial vehicle battery 7 plays the effect of protection, has guaranteed the security performance of unmanned aerial vehicle battery 7.
In the embodiment of the present utility model, as shown in fig. 3-4, the heat dissipation mechanism 4 includes a heat dissipation component 8 and a flow guiding component 11, where the heat dissipation component 8 is electrically connected to another unmanned aerial vehicle battery 7. The flow guiding components 11 are arranged at two sides of the heat dissipating component 8. The heat dissipation assembly 8 is used for dissipating heat of electronic components inside the unmanned aerial vehicle 1, the air flow generated by the heat dissipation assembly 8 is guided to the electronic components on two sides inside the unmanned aerial vehicle 1 by the guide assembly 11, so that a good heat dissipation effect can be achieved in a small space, and further the flight efficiency of the unmanned aerial vehicle 1 is further improved.
Specifically, the heat dissipation assembly 8 includes a heat dissipation frame 9 and a heat dissipation fan 10 mounted on the heat dissipation frame 9, and the heat dissipation fan 10 is electrically connected with another unmanned aerial vehicle battery 7. The other unmanned aerial vehicle battery 7 supplies power for the heat dissipation fan 10, and controls the heat dissipation fan 10 to rotate to cool the interior of the unmanned aerial vehicle 1, so that the normal flight of the unmanned aerial vehicle 1 is ensured.
In this embodiment, an installation cavity 15 is provided in the middle of the heat dissipation frame 9, the heat dissipation fan 10 is rotatably installed in the installation cavity 15, and the air duct of the heat dissipation fan 10 faces the top of the installation cavity 15. Because the air duct of the heat dissipation fan 10 faces the top of the installation cavity 15, the air flow in the process of rotating the heat dissipation fan 10 flows upwards, and then the electronic components above the inside of the unmanned aerial vehicle 1 are dissipated.
In this embodiment, the two sides of the heat dissipation frame 9 are provided with the diversion holes 16, the diversion holes 16 are communicated with the first diversion air channel 17 and the second diversion air channel 18, and because the two sides of the heat dissipation frame 9 are provided with the diversion holes 16, the diversion holes 16 are exposed on two sides of the heat dissipation frame 97 and are communicated with the first diversion air channel 17 and the second diversion air channel 18, so that air flows on two sides in the rotation process of the heat dissipation fan 10 can be diverted to the first diversion air channel 17 and the second diversion air channel 18, and the first diversion air channel 17 and the second diversion air channel 18 further convey air flows to the left and right sides of the interior of the unmanned aerial vehicle 1.
In this embodiment, as shown in fig. 4, two flow guiding assemblies 11 are provided, and the two flow guiding assemblies 11 are symmetrically disposed on two sides of the heat dissipation frame 9, where the flow guiding assemblies 11 include a bottom plate 12, and a first flow guiding fin 13 and a second flow guiding fin 14 disposed on the bottom plate 12. The bottom plate 12 is connected with the outer side wall of the heat dissipation frame 9, and the first guide fins 13 and the second guide fins 14 are symmetrically arranged on the bottom plate 12. The bottom plate 12 may be connected to the heat dissipation frame 9 by welding, or may be connected to the heat dissipation frame 9 by a screw, and the connection mode may be selected according to the actual situation, which is not specifically limited in this embodiment. The bottom plate 12 and the first and second guide fins 13, 14 may be integrally formed, or the first and second guide fins 13, 14 may be fixed on the bottom plate 12 by welding, and the bottom plate 12 and the first and second guide fins 13, 14 may be made of the same or different materials, or may be made of materials by selecting a connection mode according to actual conditions, and the embodiment is not limited specifically.
In this embodiment, the first guide fins 13 and the second guide fins 14 each have a plurality of pieces, and the first guide fins 13 and the second guide fins 14 are disposed on the bottom plate 12 at intervals, and form a guide air channel on the bottom plate 12. Because the first guide fins 13 and the second guide fins 14 are arranged on the bottom plate at intervals, and the first guide air duct 17 is formed between two adjacent first guide fins 13, and the second guide air duct 18 is formed between two adjacent second guide fins 14, the air flow generated in the rotation process of the heat dissipation fan 10 can be enabled to uniformly flow and dissipate heat in the unmanned aerial vehicle 1, and the heat dissipation efficiency is further improved.
In this embodiment, the first guide fins 13 and the second guide fins 14 have an arc corner, a first guide air channel 17 is formed between two adjacent first guide fins 13, and a second guide air channel 18 is formed between two adjacent second guide fins 14. The first air guide duct 17 and the second air guide duct 18 guide the air flow exhausted by the heat dissipation fan 10 to the left and right sides inside the unmanned aerial vehicle 1 during the rotation process, and further dissipate heat for electronic components on the left and right sides inside the unmanned aerial vehicle 1, and as the first air guide fins 13 and the second air guide fins 14 have an arc corner, the flow direction of the air blown by the heat dissipation fan 10 can be changed by utilizing the characteristic that the first air guide fins 13 and the second air guide fins 14 have inclined cambered surfaces, and the resistance of the air is reduced, so that the overall heat dissipation efficiency of the unmanned aerial vehicle 1 is improved.
Based on the same idea, in an embodiment of the utility model, as shown in fig. 1-2, an unmanned aerial vehicle battery 7 comprises an unmanned aerial vehicle battery heat sink power supply system as described above. The unmanned aerial vehicle battery 7 is provided with two, one unmanned aerial vehicle battery 7 is used for supplying power for the consumer of unmanned aerial vehicle 1, another unmanned aerial vehicle battery 7 set up in the battery compartment 6, and for the cooling machanism 4 supplies power. Through the cooperation of cooling machanism 4 with power supply mechanism 5, cooling machanism 4 can be for unmanned aerial vehicle 1 carries out abundant heat dissipation, and then has improved unmanned aerial vehicle 1's duration. And because power supply mechanism 5 is provided with two unmanned aerial vehicle battery 7, its one unmanned aerial vehicle battery 7 is for the consumer of unmanned aerial vehicle 1 supplies power, another unmanned aerial vehicle battery 7 heat dissipation mechanism 4 supplies power, does not utilize one unmanned aerial vehicle battery 7 to supply power and dispel the heat, set up alone another unmanned aerial vehicle battery 7 is for heat dissipation mechanism 4 supplies power alone, and then has promoted unmanned aerial vehicle battery 7 power supply efficiency has further improved unmanned aerial vehicle 1's duration.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides an unmanned aerial vehicle battery heat dissipation power supply system, includes unmanned aerial vehicle, be provided with on the unmanned aerial vehicle and hold the chamber, hold the intracavity and be provided with battery heat dissipation power supply system, its characterized in that, battery heat dissipation power supply system includes:
the heat dissipation mechanism is arranged in the accommodating cavity and is used for dissipating heat of the unmanned aerial vehicle;
the power supply mechanism is arranged in the accommodating cavity, is electrically connected with the heat dissipation mechanism and supplies power for the heat dissipation mechanism;
wherein, power supply mechanism includes: the battery compartment and the unmanned aerial vehicle battery are provided with two, one unmanned aerial vehicle battery is used for supplying power to electric equipment of the unmanned aerial vehicle, and the other unmanned aerial vehicle battery is arranged in the battery compartment and supplies power to the heat dissipation mechanism.
2. The unmanned aerial vehicle battery heat sink power supply system of claim 1, wherein the heat dissipation mechanism comprises:
the heat dissipation assembly is electrically connected with the other unmanned aerial vehicle battery, and comprises a heat dissipation frame and a heat dissipation fan arranged on the heat dissipation frame, and the heat dissipation fan is electrically connected with the other unmanned aerial vehicle battery;
the heat dissipation frame comprises two heat dissipation frames, and is characterized in that two flow guide assemblies are arranged and symmetrically arranged on two sides of the heat dissipation frame, and each flow guide assembly comprises a bottom plate, a first flow guide fin and a second flow guide fin which are arranged on the bottom plate.
3. The unmanned aerial vehicle battery heat dissipation power supply system of claim 2, wherein a mounting cavity is provided in the middle of the heat dissipation frame, the heat dissipation fan is rotatably mounted in the mounting cavity, and an air duct of the heat dissipation fan faces the top of the mounting cavity.
4. The unmanned aerial vehicle battery heat dissipation power supply system of claim 2, wherein the bottom plate is connected with an outer side wall of the heat dissipation frame, and the first guide fins and the second guide fins are symmetrically arranged on the bottom plate.
5. The unmanned aerial vehicle battery heat dissipation and power supply system of claim 2, wherein the first and second air guide fins each have a plurality of pieces, and the first and second air guide fins are disposed on the bottom plate at intervals and form an air guide duct on the bottom plate.
6. The unmanned aerial vehicle battery heat sink and power supply system of claim 2, wherein the first and second guide fins have an arcuate corner, and a first guide air channel is formed between two adjacent first guide fins, and a second guide air channel is formed between two adjacent second guide fins.
7. The unmanned aerial vehicle battery heat dissipation power supply system of claim 6, wherein the heat dissipation frame both sides have seted up the water conservancy diversion hole, the water conservancy diversion hole is linked together with first water conservancy diversion wind channel, the second water conservancy diversion wind channel.
8. The battery cooling and power supply system of the unmanned aerial vehicle according to claim 1, wherein a battery groove is arranged in the battery compartment, the battery groove is used for placing the unmanned aerial vehicle battery, sponge pads are arranged on two sides of the battery groove, and the sponge pads are connected with the inner side wall of the battery groove in a pasting mode.
9. The unmanned aerial vehicle battery heat dissipation and power supply system according to claim 1, wherein the other unmanned aerial vehicle battery is detachably arranged in the battery compartment, and the upper end face of the battery compartment is covered with a battery compartment cover.
10. An unmanned aerial vehicle battery, comprising: an unmanned aerial vehicle battery heat sink power supply system as recited in any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223412105.7U CN219008148U (en) | 2022-12-16 | 2022-12-16 | Unmanned aerial vehicle battery heat dissipation power supply system and unmanned aerial vehicle battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223412105.7U CN219008148U (en) | 2022-12-16 | 2022-12-16 | Unmanned aerial vehicle battery heat dissipation power supply system and unmanned aerial vehicle battery |
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| Publication Number | Publication Date |
|---|---|
| CN219008148U true CN219008148U (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223412105.7U Active CN219008148U (en) | 2022-12-16 | 2022-12-16 | Unmanned aerial vehicle battery heat dissipation power supply system and unmanned aerial vehicle battery |
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| Country | Link |
|---|---|
| CN (1) | CN219008148U (en) |
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2022
- 2022-12-16 CN CN202223412105.7U patent/CN219008148U/en active Active
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