CN219874265U - Charging converter and energy storage power supply suite thereof - Google Patents
Charging converter and energy storage power supply suite thereof Download PDFInfo
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- CN219874265U CN219874265U CN202321255066.6U CN202321255066U CN219874265U CN 219874265 U CN219874265 U CN 219874265U CN 202321255066 U CN202321255066 U CN 202321255066U CN 219874265 U CN219874265 U CN 219874265U
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- sliding cover
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- elastic
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- 238000004146 energy storage Methods 0.000 title abstract description 13
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of charging converters, and relates to a charging converter and an energy storage power supply kit thereof, wherein the charging converter comprises a shell, a sliding cover, at least two electric energy input interfaces for electric energy input, at least one electric energy output interface for electric energy output and at least one group of electric conduction components; the sliding cover is slidably arranged on the shell, and the electric energy input interface and the electric conduction assembly are arranged in the shell; the electric energy input interface and the electric conduction assembly are provided with separated positive and negative interfaces; each electric energy input interface is connected in series, and each group of electric conduction components is independently connected with a corresponding electric energy input interface in parallel; the electric conduction assembly comprises a first conduction piece and a second conduction piece, and the first conduction piece is provided with an elastic electric connection part. The elastic electric connection part is separated from the second conducting piece under the action of elasticity; the sliding cover is driven to slide, and the sliding cover pushes the elastic electric connection part to be electrically connected with the second conducting piece.
Description
Technical Field
The utility model relates to the technical field of charging converters, in particular to a charging converter and an energy storage power supply suite thereof.
Background
The charging converter can be used for converting electric energy generated by the solar panel into a charging power supply, so that the energy storage power supply and other devices can be charged. To enhance charging efficiency, charging converters are often equipped with multiple power input interfaces, allowing multiple solar panels to be connected simultaneously for charging. These power input interfaces are typically connected in series, and only if each interface is connected to a solar panel, a closed circuit is formed for charging.
In order to avoid the problem that the solar panels cannot be used because the number of the solar panels is smaller than that of the electric energy input interfaces, the existing charging converter realizes circuit conduction by inserting an electric connector into the empty electric energy input interfaces so as to ensure the normal use of the charging converter. However, this manner of directly inserting the power input interface is prone to wear the power input interface, resulting in poor contact and other problems; meanwhile, the electric connector has the problem that the electric connector is exposed outside and is easy to corrode and oxidize.
Disclosure of Invention
The utility model aims to provide a charging converter and an energy storage power supply kit thereof, wherein an electric energy input interface is not easy to wear, poor contact is not easy to occur, and an electric conduction assembly is not easy to corrode and oxidize.
The utility model discloses a charging converter, which comprises a shell, a sliding cover, at least two electric energy input interfaces for electric energy input, at least one electric energy output interface for electric energy output and at least one group of electric conduction components, wherein the sliding cover is arranged on the shell; the sliding cover is slidably arranged on the shell, and the electric energy input interface and the electric conduction assembly are arranged in the shell; the electric energy input interface and the electric conduction assembly are provided with separated positive and negative interfaces; each electric energy input interface is connected in series, and each group of electric conduction components is independently connected with a corresponding electric energy input interface in parallel; the electric conduction assembly comprises a first conduction piece and a second conduction piece, and the first conduction piece is provided with an elastic electric connection part;
the elastic electric connection part is separated from the second conducting piece under the action of elasticity; the sliding cover is driven to slide, the sliding cover pushes the elastic electric connecting part to be electrically connected with the second conducting piece, and the sliding cover can be positioned in the state that the elastic electric connecting part is electrically connected with the second conducting piece.
Optionally, when the sliding cover pushes the elastic electrical connection part to be electrically connected with the second conductive member, the sliding cover covers the electrical energy input interface correspondingly connected with the electrical conductive assembly in parallel.
Optionally, when the sliding cover is driven to move reversely to separate the elastic electric connection part from the second conducting part, the sliding cover opens the electric energy input interface which is connected with the electric conducting component in parallel correspondingly.
Optionally, two sliding openings are formed in one face of the shell where the electric energy input interface is located, and the two sliding openings are oppositely arranged; the sliding cover is provided with two sliding mounting parts which are arranged oppositely and can be slidably arranged in the sliding opening.
Optionally, a pushing member is installed between the two sliding installation parts, and the pushing member is used for pushing the elastic electric connection part to be electrically connected with the second conducting member.
Optionally, the pushing piece comprises a connecting part and a pushing part, two ends of the connecting part are respectively arranged on the two sliding installation parts, and the pushing part is connected with the connecting part and extends towards the direction of the elastic electric connecting part; the pushing part is used for pushing the elastic electric connecting part to be electrically connected with the second conducting piece.
Optionally, a first abutting part is arranged on one side, facing the second conducting piece, of the elastic electric connecting part, and a second abutting part is arranged on one side, facing the elastic electric connecting part, of the second conducting piece; when the elastic electric connection part is electrically connected with the second conducting piece, the first abutting part abuts against the second abutting part.
Optionally, the number of the electric energy input interfaces is N, and the number of the sliding cover and the electric conduction assembly is (N-1) respectively; wherein N is a natural number, and N is more than or equal to 3.
Optionally, the pushing piece comprises a positioning part, a clamping convex part is arranged at the end part of the positioning part, and a clamping groove is formed in the inner wall surface of one surface of the shell where the electric energy input interface is located; when the sliding cover pushes the elastic electric connecting part to be electrically connected with the second conducting piece, the clamping convex part is clamped in the clamping groove so as to position the sliding cover.
The utility model also discloses an energy storage power supply kit which comprises the charging converter.
According to the charging converter, the sliding cover and the electric conduction assembly are arranged, each electric energy input interface is connected in series, and the electric conduction assembly is independently connected with the corresponding electric energy input interface in parallel. When the number of external charging equipment such as solar panels is less than that of the electric energy input interfaces, the electric conduction components corresponding to the redundant electric energy input interfaces are electrically communicated through the elastic electric connection parts, so that a charging circuit of the charging converter can still form a loop, and the charging circuit can normally charge the equipment to be charged such as an energy storage power supply, thereby avoiding the frequent plugging of the electric energy input interfaces directly, ensuring that the electric energy input interfaces are not easy to wear and contact failure is not easy to occur. Meanwhile, the electric conduction assembly is located inside the shell all the time, the electric connection or separation between the elastic electric connection part and the second conduction piece is realized by pushing or removing the sliding cover, the electric conduction assembly has no exposed problem, and the electric conduction assembly is not easy to corrode and oxidize.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is evident that the figures in the following description are only some embodiments of the utility model, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic diagram showing a sliding cover pushing an elastic electrical connection portion to be electrically connected with a second conductive member according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the elastic electrical connection portion and the second conductive member according to the embodiment of the present utility model;
FIG. 3 is an exploded view of a charge converter according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of an electrical connection between an elastic electrical connection portion and a second conductive member according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a sliding cover according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a detent according to an embodiment of the present utility model;
fig. 7 is a schematic diagram of a charge converter circuit according to an embodiment of the utility model.
1, a shell; 11. a sliding opening; 12. a clamping groove; 2. a sliding cover; 21. a sliding mounting part; 22. a pushing member; 221. a connection part; 222. a pushing part; 223. a positioning part; 223a, a clamping convex part; 3. an electrical energy input interface; 4. an electrical energy output interface; 5. an electrical conduction assembly; 51. a first conductive member; 511. an elastic electrical connection; 511a, a first abutment; 52. a second conductive member; 521. a second abutting portion; 6. a PCB board; 7. a solar panel.
Detailed Description
It is to be understood that the terminology used herein, the specific structural and functional details disclosed are merely representative for the purpose of describing particular embodiments, but that the utility model may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
The utility model is described in detail below with reference to the attached drawings and alternative embodiments.
As shown in fig. 1 to 7, as an embodiment of the present utility model, a charging converter is disclosed, particularly as shown in fig. 1 to 4, the charging converter includes a housing 1, a sliding cover 2, at least two power input interfaces 3 for power input, at least one power output interface 4 for power output, and at least one set of electrical conduction assemblies 5; the sliding cover 2 is slidably mounted on the housing 1, and the electric energy input interface 3 and the electric conduction assembly 5 are mounted in the housing 1; the electric energy input interface 3 and the electric conduction assembly 5 are provided with separated positive and negative interfaces; each electric energy input interface 3 is connected in series, and each group of electric conduction assemblies 5 is independently connected in parallel with a corresponding electric energy input interface 3; the electrical conduction assembly 5 includes a first conduction member 51 and a second conduction member 52, the first conduction member 51 being provided with an elastic electrical connection portion 511.
The elastic electrical connection 511 is separated from the second conductive element 52 by the elastic force thereof; the sliding cover 2 is driven to slide, the sliding cover 2 pushes the elastic electrical connection portion 511 to be electrically connected with the second conductive member 52, and the sliding cover 2 can be positioned in a state where the elastic electrical connection portion 511 is electrically connected with the second conductive member 52.
The charging converter of the utility model is provided with the sliding cover 2 and the electric conduction assembly 5, meanwhile, each electric energy input interface 3 is connected in series, and the electric conduction assembly 5 is independently connected with the corresponding electric energy input interface 3 in parallel. When the number of external charging devices such as the solar panels 7 is less than that of the electric energy input interfaces 3, the electric conduction assemblies 5 corresponding to the redundant electric energy input interfaces 3 are electrically connected through the elastic electric connection parts 511, so that a charging circuit of the charging converter can still form a loop, and the charging device to be charged such as an energy storage power supply can be charged normally, thereby avoiding the frequent plugging of the electric energy input interfaces 3 directly, ensuring that the electric energy input interfaces 3 are not easy to wear and contact failure is not easy to occur. Meanwhile, the electric conduction assembly 5 is located inside the shell 1 all the time, the electric connection or separation between the elastic electric connection part 511 and the second conduction piece 52 is realized by pushing or removing the sliding cover 2, and the electric conduction assembly 5 has no exposed problem and is not easy to be corroded and oxidized.
Specifically, by providing the sliding cover 2, and by sliding the sliding cover 2 on the housing 1, the electrical communication between the elastic electrical connection portion 511 and the second conductive member 52 is achieved, and the structure is simple and the operation is convenient.
Further referring to fig. 7, when the number of external charging devices, such as the solar panels 7, is insufficient, the sliding cover 2 is pushed, and the sliding cover 2 pushes the elastic electrical connection portion 511 to be electrically connected with the second conductive member 52 to form a loop, so as to avoid that the corresponding spare power input interface 3 is in an open state, and the whole charging circuit of the charging converter cannot be used. When the number of external charging devices, such as the solar panels 7, is enough, the sliding cover 2 is pushed to slide reversely, the sliding cover 2 is pushed to the elastic electric connection part 511, the elastic electric connection part 511 is separated from the second conducting piece 52 under the action of the own elastic force, and the corresponding electric energy input interface 3 is connected with the external charging device. Therefore, when the number of external charging devices, such as the solar panels 7, is sufficient, each of the electrical energy input interfaces 3 is connected to the external charging device, and the elastic electrical connection portion 511 and the second conductive member 52 are not required to be electrically connected through the sliding cover 2. The power input interface 3 may be provided with two, three, four or even more as required. Specifically, at least two electric energy input interfaces 3 are arranged, and the charging converter can be at least externally connected with two solar panels 7 for charging, so that the charging efficiency is ensured. At least one sliding cover 2 is provided, and at least one group of electric conduction assemblies 5 is provided. The specific number of sliding covers 2 and electrical conduction assemblies 5 may be based on the number of electrical energy input interfaces 3 and the desired settings for actual use. For example, when three power input ports 3 are provided, one or two slide covers 2 and electrical conduction members 5 may be provided, respectively. When only one electric energy input interface 3 is arranged, the other two electric energy input interfaces 3 can be charged only by being externally connected with the solar panel 7, and when two electric energy input interfaces are arranged, only one electric energy input interface 3 is externally connected with the solar panel 7, and the remaining two electric energy input interfaces 3 can be short-circuited through the electric conduction assembly 5, so that charging is realized.
Optionally, the number of the electric energy input interfaces 3 is N, and the number of the sliding cover 2 and the electric conduction assembly 5 is (N-1) respectively; wherein N is a natural number, and N is more than or equal to 3. In this scheme, the quantity of sliding cover 2 and electric conduction subassembly 5 is less than the quantity of electric energy input interface 3 one, only one of them electric energy input interface 3 can not be by sliding cover 2 and electric conduction subassembly 5 short circuit, and the rest can all be by sliding cover 2 and electric conduction subassembly 5 short circuit, guarantees the return circuit of charging converter charging circuit. In this way, when the number of power input interfaces 3 of the charge converter is equal to or greater than 3, but only one solar panel 7, the loop of the charge circuit of the charge converter can be ensured. For example, there are 3 power input interfaces 3, and then there are 2 sliding covers 2 and electrical conduction assemblies 5, respectively.
Optionally, when the sliding cover 2 pushes the elastic electrical connection portion 511 to be electrically connected to the second conductive member 52, the sliding cover 2 covers the electrical energy input interface 3 correspondingly connected to the electrical conductive assembly 5 in parallel. In this embodiment, when the elastic electrical connection portion 511 is electrically connected to the second conductive member 52, the sliding cover 2 covers the electrical energy input interface 3 corresponding to the electrical conduction assembly 5 in parallel, so as to seal the electrical energy input interface 3 that is not used, and ensure that the electrical energy input interface 3 that is not used is clean. More importantly, when the elastic electrical connection portion 511 is electrically connected with the second conductive member 52, the electrical energy input interface 3 that is not used is sealed, so that an operator can determine whether the electrical energy input interface 3 can be connected to the solar panel 7 according to the electrical energy input interface, and the operator can be prevented from connecting the solar panel 7 to the electrical energy input interface 3 that is not used.
Alternatively, when the sliding cover 2 is driven to move reversely to separate the elastic electrical connection 511 from the second conductive member 52, the sliding cover 2 opens the corresponding electrical energy input interface 3 connected in parallel with the electrical conductive member 5. In this embodiment, when the elastic electrical connection portion 511 is separated from the second conductive member 52, the sliding cover 2 opens the electrical energy input interface 3 corresponding to the electrical conduction assembly 5 in parallel, so that an operator can conveniently connect the solar panel 7 outside the opened electrical energy input interface 3. More importantly, when the elastic electric connection part 511 is electrically connected with the second conducting piece 52, the sliding cover 2 covers the corresponding electric energy input interface 3, and when the elastic electric connection part 511 is separated from the second conducting piece 52, the sliding cover 2 opens the corresponding electric energy input interface 3, so that a user can clearly know that the electric energy input interface 3 covered by the sliding cover 2 is in a short-circuit state, and the external solar panel 7 is not needed; the electric energy input interface 3 opened by the sliding cover 2 is in a non-short circuit state and needs to be externally connected with the solar panel 7. The user can quickly judge the current state of the electric energy input interface 3, and the electric energy input interface is convenient to use.
Optionally, as shown in fig. 1 to fig. 4, two sliding openings 11 are formed on a surface of the casing 1 where the electric energy input interface 3 is located, and the two sliding openings 11 are oppositely arranged; the slide cover 2 is provided with two slide mounting portions 21, and the two slide mounting portions 21 are disposed opposite to each other and slidably mounted in the slide opening 11. In this scheme, through the cooperation of slip opening 11 and slip installation department 21, realize the slidable of slip lid 2 on casing 1, the slip is stable, convenient operation is simple.
Optionally, a pushing member 22 is mounted between the two sliding mounting portions 21, and the pushing member 22 is used for pushing the elastic electrical connection portion 511 to be electrically connected with the second conductive member 52. In this solution, the sliding mounting portion 21 is not only used to cooperate with the sliding opening 11 to realize sliding of the sliding cover 2 on the housing 1, but also serves as a mounting component of the pushing member 22, so that the pushing member 22 is mounted, and the structure is simplified, thereby achieving two purposes.
Specifically, as shown in fig. 3 to 5, the pusher 22 includes a connection portion 221 and a pushing portion 222, both ends of the connection portion 221 are respectively mounted on the two sliding mounting portions 21, and the pushing portion 222 is connected to the connection portion 221 and extends toward the elastic electrical connection portion 511; the pushing portion 222 is used for pushing the elastic electrical connection portion 511 to electrically connect with the second conductive element 52. In this embodiment, the connection portion 221 is mounted on the slide mounting portion 21, and the pushing portion 222 extends toward the elastic electrical connection portion 511, so that the elastic electrical connection portion 511 is pushed. The cross section of both ends of the connection part 221 is D-shaped, and correspondingly, the sliding mounting part 21 is provided with D-shaped mounting holes, and both ends of the connection part 221 are inserted into the mounting holes. The connection portion 221 is provided on a side of the pushing member 22 close to the corresponding power input interface 3, and the pushing portion 222 is provided on a side of the pushing member 22 away from the corresponding power input interface 3.
Alternatively, as shown in fig. 3 to 4, a first abutting portion 511a is provided on a side of the elastic electrical connection portion 511 facing the second conductive member 52, and a second abutting portion 521 is provided on a side of the second conductive member 52 facing the elastic electrical connection portion 511; when the elastic electrical connection portion 511 is electrically connected to the second conductive element 52, the first abutting portion 511a abuts against the second abutting portion 521. In this scheme, through setting up first butt portion 511a and second butt portion 521 for when elasticity electricity connecting portion 511 and second switch-on piece 52 electric connection, elasticity electricity connecting portion 511 and second switch-on piece 52 contact more easily, can reduce the push stroke of sliding closure 2 to elasticity electricity connecting portion 511 simultaneously, thereby reduce elasticity size that elasticity electricity connecting portion 511 deformation produced, elasticity electricity connecting portion 511 reduces the thrust effort of sliding closure, sliding closure 2 keeps under elasticity electricity connecting portion 511 and second switch-on piece 52 electric connection state more easily, that is, sliding closure 2 is difficult to by elasticity electricity connecting portion 511 rebound reset.
Alternatively, as shown in fig. 4 to 6, the pushing member 22 includes a positioning portion 223, a positioning protrusion 223a is provided at an end of the positioning portion 223, and a positioning groove 12 is provided on an inner wall surface of the housing 1 on a surface of the electrical energy input interface 3; when the sliding cover 2 pushes the elastic electrical connection portion 511 to be electrically connected with the second conductive member 52, the locking protrusion 223a is locked in the locking groove 12 to position the sliding cover 2. In this embodiment, the locking protrusion 223a of the positioning portion 223 is matched with the locking groove 12, so that the sliding cover 2 is kept in a state where the elastic electrical connection portion 511 is electrically connected to the second conductive member 52 when pushing the elastic electrical connection portion 511 to be electrically connected to the second conductive member 52. Specifically, two positioning portions 223 are provided, and two corresponding detent grooves 12 are provided.
Optionally, as shown in fig. 3, the charging converter further includes a PCB board 6, the PCB board 6 is mounted in the housing 1, and the electric power input interface 3 and the electric conduction assembly 5 are mounted on the PCB board 6. Wherein each set of electrical conducting assemblies 5 is arranged beside the corresponding electrical energy input interface 3.
The embodiment also discloses an energy storage power supply suite, such as the charging converter. In particular, the energy storage power supply kit may comprise an energy storage power supply and a charging converter as described above; or comprises an energy storage power source, a solar panel 7 and a charging converter as described above; or comprises a solar panel 7 and a charging converter as described above.
The above description of the utility model in connection with specific alternative embodiments is further detailed and it is not intended that the utility model be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (10)
1. A charging converter, comprising a housing, a sliding cover, at least two power input interfaces for power input, at least one power output interface for power output, and at least one set of electrical conduction components; the sliding cover is slidably mounted on the housing, and the electric energy input interface and the electric conduction assembly are mounted in the housing; the electric energy input interface and the electric conduction assembly are provided with separated positive and negative interfaces; each of the electrical energy input interfaces is connected in series, and each group of the electrical conduction assemblies is independently connected in parallel with a corresponding one of the electrical energy input interfaces; the electric conduction assembly comprises a first conduction piece and a second conduction piece, and the first conduction piece is provided with an elastic electric connection part;
the elastic electric connection part is separated from the second conducting piece under the action of elasticity; the sliding cover is driven to slide, the sliding cover pushes the elastic electric connection part to be electrically connected with the second conducting piece, and the sliding cover can be positioned in the state that the elastic electric connection part is electrically connected with the second conducting piece.
2. The charging converter as claimed in claim 1, wherein the sliding cover covers the electrical energy input interface corresponding to the electrical conduction assembly in parallel when the sliding cover pushes the elastic electrical connection portion to be electrically connected with the second conduction member.
3. The charge converter of claim 2 wherein said sliding cover opens said electrical energy input interface corresponding to said electrical conduction assembly in parallel with said electrical conduction assembly when said sliding cover is driven to move in a reverse direction to disengage said resilient electrical connection from said second electrical conduction member.
4. A charging converter according to any one of claims 1 to 3, wherein two sliding openings are formed in a surface of the housing where the power input interface is located, the two sliding openings being disposed opposite to each other; the sliding cover is provided with two sliding mounting parts, and the two sliding mounting parts are oppositely arranged and slidably mounted in the sliding opening.
5. The charging converter as set forth in claim 4, wherein a pushing member is installed between the two sliding mounting portions, the pushing member being for pushing the elastic electrical connection portion to be electrically connected with the second conductive member.
6. The charging converter according to claim 5, wherein the pushing member includes a connecting portion and a pushing portion, both ends of the connecting portion are respectively mounted on the two sliding mounting portions, and the pushing portion is connected to the connecting portion and extends toward the elastic electrical connecting portion; the pushing part is used for pushing the elastic electric connection part to be electrically connected with the second conducting piece.
7. A charging converter according to any one of claims 1 to 3, wherein a first abutting portion is provided on a side of the elastic electrical connection portion facing the second conductive member, and a second abutting portion is provided on a side of the second conductive member facing the elastic electrical connection portion; when the elastic electric connection part is electrically connected with the second conducting piece, the first abutting part abuts against the second abutting part.
8. A charging converter as claimed in any one of claims 1 to 3, wherein there are N of said power input interfaces, and there are (N-1) of said sliding cover and said electrical conduction assembly respectively; wherein N is a natural number, and N is more than or equal to 3.
9. The charging converter according to claim 5, wherein the pushing member includes a positioning portion, a positioning protrusion is provided at an end of the positioning portion, and a positioning groove is provided on an inner wall surface of the housing on a surface where the electric energy input interface is located; when the sliding cover pushes the elastic electric connection part to be electrically connected with the second conducting piece, the clamping convex part is clamped in the clamping groove so as to position the sliding cover.
10. A stored energy power supply kit comprising a charging converter according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255066.6U CN219874265U (en) | 2023-05-22 | 2023-05-22 | Charging converter and energy storage power supply suite thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255066.6U CN219874265U (en) | 2023-05-22 | 2023-05-22 | Charging converter and energy storage power supply suite thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219874265U true CN219874265U (en) | 2023-10-20 |
Family
ID=88336447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321255066.6U Active CN219874265U (en) | 2023-05-22 | 2023-05-22 | Charging converter and energy storage power supply suite thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219874265U (en) |
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2023
- 2023-05-22 CN CN202321255066.6U patent/CN219874265U/en active Active
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