CN218450450U - Charging box and wireless earphone - Google Patents
Charging box and wireless earphone Download PDFInfo
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- CN218450450U CN218450450U CN202222133175.2U CN202222133175U CN218450450U CN 218450450 U CN218450450 U CN 218450450U CN 202222133175 U CN202222133175 U CN 202222133175U CN 218450450 U CN218450450 U CN 218450450U
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Abstract
The application provides a box and wireless headset charge. The charging box comprises a shell, a cover body and a containing bin, wherein the shell is provided with a mounting groove, the cover body is connected to the shell in a rotating mode, a placing cavity is formed in one side, adjacent to the cover body, of the containing bin, and a driving device is arranged in the mounting groove and the power output end of the driving device is connected to the cover body. Foretell box that charges, because the chamber is formed with places the chamber in the storehouse, make and place the chamber and can be used to place the earphone, because the lid rotates and connects in the casing, make the lid be used for the switching mounting groove, again because drive arrangement's power take off end connects in the lid, make drive arrangement can be used to control the lid switching, the automatic switching of lid has been realized promptly, make the user save the operation of manual uncapping when using wireless earphone, the convenience of getting and putting the earphone has been improved, also make the convenience of user when using wireless earphone higher.
Description
Technical Field
The utility model relates to a wireless earphone's technical field especially relates to a charging box.
Background
The wireless earphone is more and more popular with the current users due to its characteristics of small size and convenient carrying. Present wireless earphone box that charges receives the restriction of space and technique, no matter be the upper and lower lid and open and shut, still slide the lid and open and shut, its structural feature is buckle formula mostly, perhaps magnetism is inhaled the formula, all needs the manual operation of user for the user convenience is relatively poor when using wireless earphone.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing a better box and wireless earphone that charges of convenience uses.
The purpose of the utility model is realized through the following technical scheme:
a charging box comprising:
a housing formed with a mounting groove;
the cover body is rotationally connected to the shell and used for opening and closing the mounting groove;
a placing cavity is formed on one side of the containing bin, which is adjacent to the cover body, and the placing cavity is used for containing earphones; and
the driving device is arranged in the mounting groove, and the power output end of the driving device is connected to the cover body, so that the driving device is used for driving the cover body to open and close the mounting groove.
In one embodiment, the driving device includes:
the driving motor is arranged in the mounting groove; and
and the input end of the meshing transmission mechanism is connected with the output end of the driving motor, and the output end of the meshing transmission mechanism is connected with the cover body.
In one embodiment, the meshing transmission mechanism includes:
the driving gear is arranged on the output end of the driving motor;
the power transmission assembly comprises a rotating shaft, a transmission gear and a driven gear which are sequentially connected, the rotating shaft is arranged on one side of the shell, and the driven gear is in transmission connection with the driving gear; and
the transmission rack assembly comprises a first rack and a second rack which are connected, the first rack is in transmission connection with the transmission gear, and the second rack is connected with the cover body.
In one embodiment, the cover body comprises a meshing part and an opening and closing part which are connected, the meshing part is in transmission connection with the second rack, and a clearance groove is formed on one side, adjacent to the placing cavity, of the opening and closing part.
In one embodiment, the accommodating bin comprises a fixed bin body and a lifting bin body, the fixed bin body is fixedly connected in the mounting groove, the fixed bin body is provided with a first placing groove, the lifting bin body is slidably connected with the fixed bin body, the lifting bin body is provided with a second placing groove, and the second placing groove and the first placing groove form the placing cavity together when the lifting bin is lifted to a preset position;
the power output end of the driving device is also connected with the lifting bin body, so that the driving device is also used for driving the lifting bin body to lift.
In one embodiment, the fixed bin body is formed with a receiving cavity for receiving the elevator bin body.
In one embodiment, the driving device includes:
the driving motor is arranged in the mounting groove; and
and the input end of the meshing transmission mechanism is connected to the output end of the driving motor, and the output end of the meshing transmission mechanism is connected to the cover body.
In one embodiment, the meshing transmission mechanism includes:
the driving gear is arranged at the output end of the driving motor;
the power transmission assembly comprises a rotating shaft, a transmission gear and a driven gear which are sequentially connected, the rotating shaft is arranged on one side of the shell, and the driven gear is in transmission connection with the driving gear; and
the transmission rack assembly comprises a first rack and a second rack, the first rack and the second rack are fixedly connected to the lifting bin body, the first rack is in transmission connection with the transmission gear, and the second rack is connected with the cover body.
In one embodiment, the cover body comprises a meshing part and an opening and closing part which are connected, the meshing part is in transmission connection with the second rack, and a clearance groove is formed in one side, adjacent to the placing cavity, of the opening and closing part;
in one embodiment, the charging box further comprises a connecting rod, the opening and closing portion defines a first connecting hole, the fixed bin defines a second connecting hole, the connecting rod is inserted through the first connecting hole and the second connecting hole, and the connecting rod is rotatably sleeved with the opening and closing portion and the fixed bin respectively.
A wireless headset comprising a charging box according to any of the above embodiments.
Compared with the prior art, the utility model discloses at least, following advantage has:
foretell box that charges, because the chamber is formed with places the chamber in the storehouse, make and place the chamber and can be used to place the earphone, because the lid rotates and connects in the casing, make the lid be used for the switching mounting groove, again because drive arrangement's power take off end connects in the lid, make drive arrangement can be used to control the lid switching, the automatic switching of lid has been realized promptly, make the user save the operation of manual uncapping when using wireless earphone, the convenience of getting and putting the earphone has been improved, also make the convenience of user when using wireless earphone higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a charging box according to an embodiment;
fig. 2 is a partial structural view of the charging box shown in fig. 1;
fig. 3 is another partial structural view of the charging box shown in fig. 1;
fig. 4 is another partial structural view of the charging box of fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the charging box 10 of an embodiment includes a housing 100, a cover 200, a housing 300, and a driving device 400; the housing 100 is formed with an installation groove 110, the installation groove 110 is used for installing the storage bin 300 and the driving device 400, the cover 200 is rotatably connected to the housing 100, the cover 200 is used for opening and closing the installation groove 110, so that when a user needs to take out the earphone 20 from the charging box 10, the charging box 10 can open the installation groove 110, and when the user needs to store the earphone 20 in the charging box 10, the charging box 10 can close the installation groove 110, a placing cavity 330 is formed at one side of the storage bin 300 adjacent to the cover 200, the placing cavity 330 is used for containing the earphone 20, so that the position of the earphone 20 is fixed, so that the earphone 20 is kept stable in the storage bin 300, the driving device 400 is arranged in the installation groove 110, a power output end of the driving device 400 is connected to the cover 200, so that the driving device 400 is used for driving the cover 200 to open and close the installation groove 110, so that the driving device 400 can control the opening of the cover 200 to open and close when the user needs to take out the earphone 20 from the charging box 10, and can also control the closing of the cover 200 to achieve automatic opening and closing of the cover 200.
As shown in fig. 1 to fig. 4, in the present embodiment, when a user needs to take out the earphone 20 from the charging box 10, first, the driving device 400 outputs power, and the power output end of the driving device 400 is connected to the cover 200, so that the power output by the driving device 400 drives the cover 200 to rotate in a first direction, so that the driving device 400 controls the cover 200 to open, and further, the user omits the operation of manually opening the cover 200, and after the cover 200 is opened, the earphone 20 is taken out from the placing cavity 330. When the charging box 10 needs to store the earphone 20 in the charging box 10, the earphone 20 is firstly placed in the placing cavity 330, then the driving device 400 outputs power, and the power output end of the driving device 400 is connected to the cover body 200, so that the power output by the driving device 400 drives the cover body 200 to rotate in the second direction, the driving device 400 controls the cover body 200 to be closed, and further, the user omits the operation of manually closing the cover body 200.
In the charging box 10, the accommodating chamber 300 is formed with the accommodating chamber 330, so that the accommodating chamber 330 can be used for accommodating the earphone 20, the cover body 200 is rotatably connected to the casing 100, so that the cover body 200 is used for opening and closing the mounting groove 110, and the power output end of the driving device 400 is connected to the cover body 200, so that the driving device 400 can be used for controlling the opening and closing of the cover body 200, thereby realizing the automatic opening and closing of the cover body 200, so that the user omits the manual opening operation when using the wireless earphone, improving the convenience of taking and placing the earphone 20, and also ensuring higher convenience when using the wireless earphone.
As shown in fig. 1, in one embodiment, the driving device 400 includes a driving motor 410 and an engaging transmission mechanism 420, the driving motor 410 is installed in the installation groove 110, the driving motor 410 is fixedly connected to the housing 100 to fix the position of the driving motor 410, an input end of the engaging transmission mechanism 420 is connected to an output end of the driving motor 410 to enable the driving motor 410 to transmit power to the engaging transmission mechanism 420, and an output end of the engaging transmission mechanism 420 is connected to the cover 200 to enable the engaging transmission mechanism 420 to transmit the power transmitted by the driving motor 410 to the cover 200, so that the driving motor 410 drives the cover 200 to close the installation groove 110.
As shown in fig. 1, further, the driving device 400 further includes a battery 430, the battery 430 is fixedly installed in the installation groove 110, so that the position of the battery 430 is fixed, and the battery 430 is connected to the driving motor 410; the driving motor 410 further includes a control switch 411, the control switch 411 is disposed on one side of the driving motor 410, and the control switch 411 is used for controlling the driving motor 410 to output power to the cover 200, and further controlling the driving motor 410 to drive the cover 200 to open and close the mounting groove 110.
As shown in fig. 1 to 2, in one embodiment, the meshing transmission mechanism 420 includes a driving gear 421, a power transmission assembly 422 and a transmission rack assembly 423, the driving gear 421 is disposed at an output end of the driving motor 410, the driving gear 421 is used for the driving motor 410 to transmit power to the power transmission assembly 422, the power transmission assembly 422 includes a rotating shaft 422a, a transmission gear 422b and a driven gear 422c, which are sequentially connected, the rotating shaft 422a is disposed at one side of the casing 100, the driven gear 422c is in transmission connection with the driving gear 421, so that the power transmitted by the driving motor 410 is transmitted from the power transmission assembly 422 to the transmission rack assembly 423, the transmission rack assembly 423 includes a first rack 423a and a second rack 423b connected to enable the first rack 423a to drive the second rack 423b to move, the first rack 423a is in transmission connection with the transmission gear 422b, the second rack 423b is connected with the cover 200, so that the power transmitted by the driving motor 410 is transmitted from the transmission rack assembly 423 to the cover 200, and the driving motor 410 drives the cover 200 to close the mounting groove 110.
As shown in fig. 1 to 2, in one embodiment, the cover body 200 includes a meshing portion 210 and an opening/closing portion 220 connected to each other, so that the meshing portion 210 drives the opening/closing portion 220 to move, the meshing portion 210 is in transmission connection with a second rack 423b, a space avoiding groove 221 is formed on one side of the opening/closing portion 220 adjacent to the placing cavity 330, and the space avoiding groove 221 is used for separating the earphone 20 from the opening/closing portion 220, so as to prevent the earphone 20 from directly contacting the opening/closing portion 220, and further reduce the possibility of damage to the earphone 20 due to collision between the earphone 20 and the opening/closing portion 220.
As shown in fig. 1 to 4, in one embodiment, the accommodating bin 300 includes a fixed bin body 310 and a lifting bin body 320, the fixed bin body 310 is fixedly connected in the mounting groove 110, so that a first placing groove 311 is formed on the fixed bin body 310, the first placing groove 311 is used for placing a first end of the earphone 20, the lifting bin body 320 is slidably connected to the fixed bin body 310, so that the lifting bin body 320 can move up and down in the fixed bin body 310, the lifting bin body 320 is formed with a second placing groove 321, the second placing groove 321 is used for placing a second end of the earphone 20, the second placing groove 321 and the first placing groove 311 form a placing cavity 330 when being lifted to a preset position, the placing cavity 330 is used for placing the earphone 20, and a power output end of the driving device 400 is further connected to the lifting bin body 320, so that the driving device 400 is further used for driving the lifting bin body 320 to lift up and down, and further enabling the driving device 400 to drive the lifting of the earphone 20 to lift up and down.
As shown in fig. 3-4, in one embodiment, the stationary cartridge body 310 is formed with a receiving cavity 313 for receiving the elevator cartridge body 320 such that the elevator cartridge body 320 can undergo an elevating motion within the stationary cartridge body 310.
As shown in fig. 1, in one embodiment, the driving device 400 includes a driving motor 410 and an engaging transmission mechanism 420, the driving motor 410 is installed in the installation groove 110, the driving motor 410 is fixedly connected to the housing 100 to fix the position of the driving motor 410, an input end of the engaging transmission mechanism 420 is connected to an output end of the driving motor 410 to enable the driving motor 410 to transmit power to the engaging transmission mechanism 420, and an output end of the engaging transmission mechanism 420 is connected to the engaging portion 210 to enable the engaging transmission mechanism 420 to transmit the power transmitted by the driving motor 410 to the engaging portion 210, so that the driving motor 410 drives the opening and closing portion 220 to open and close the installation groove 110.
As shown in fig. 1, further, the driving device 400 further includes a battery 430, the battery 430 is installed in the installation groove 110, and the battery 430 is fixedly connected to the driving motor 410, so that the position of the battery 430 is fixed; the driving motor 410 further includes a control switch 411, the control switch 411 is disposed on one side of the driving motor 410, and the control switch 411 is used for controlling the driving motor 410 to output power to the engaging portion 210, and further controlling the driving motor 410 to drive the opening and closing portion 220 to open and close the mounting groove 110.
As shown in fig. 1 to 2, in one embodiment, the meshing transmission mechanism 420 includes a driving gear 421, a power transmission assembly 422 and a transmission rack assembly 423, the driving gear 421 is disposed at an output end of the driving motor 410, the driving gear 421 is used for the driving motor 410 to transmit power to the power transmission assembly 422, the power transmission assembly 422 includes a rotating shaft 422a, a transmission gear 422b and a driven gear 422c, which are sequentially connected, the rotating shaft 422a is disposed at one side of the casing 100, the driven gear 422c is in transmission connection with the driving gear 421, so that the power transmitted by the driving motor 410 is transmitted from the power transmission assembly 422 to the transmission rack assembly 423, the transmission rack assembly 423 includes a and a second rack 423b, both the first rack 423a and the second rack 423b are fixedly connected to the elevating cabin body 320, so that the first rack 423a drives the second rack 423b to move, the first rack 423a is in transmission connection with the transmission gear 422b, and the second rack 423b is connected to the cover body 200, so that the power transmitted by the driving motor 410 is transmitted from the transmission rack assembly 423 to the cover body 200, and further cause the driving motor 410 to close the mounting groove 200.
As shown in fig. 1 to 2, in one embodiment, the cover 200 includes a meshing portion 210 and an opening/closing portion 220 connected to each other, so that the meshing portion 210 drives the opening/closing portion 220 to move, the meshing portion 210 is in transmission connection with a second rack 423b, a clearance groove 221 is formed on a side of the opening/closing portion 220 adjacent to the placing cavity 330, and the clearance groove 221 is used for separating the earphone 20 from the opening/closing portion 220, so as to prevent the earphone 20 from directly contacting the opening/closing portion 220, and further reduce the possibility of damage to the earphone 20 due to collision between the earphone 20 and the opening/closing portion 220.
As shown in fig. 1 to 3, in one embodiment, the charging box 10 further includes a connecting rod 500, the connecting rod 500 is used for connecting the engaging portion 210 and the fixed bin 310, the opening/closing portion 220 is provided with a first connecting hole 222, the fixed bin 310 is provided with a second connecting hole 312, the connecting rod 500 is inserted through the first connecting hole 222 and the second connecting hole 312, and the connecting rod 500 is rotatably sleeved with the opening/closing portion 220 and the fixed bin 310, so that the cover 200 is rotatably connected to the casing 100, and the charging box 10 can be opened and closed.
The present application also provides a wireless headset including the charging box 10 of any of the above embodiments.
As shown in fig. 1 to 4, in one embodiment, the charging box 10 includes a housing 100, a cover 200, a receiving chamber 300, and a driving device 400, the housing 100 is formed with a mounting groove 110, the mounting groove 110 is used for mounting the receiving chamber 300 and the driving device 400, the cover 200 is rotatably connected to the housing 100, the cover 200 is used for opening and closing the mounting groove 110, so that when a user needs to take out an earphone 20 from the charging box 10, the charging box 10 can open the mounting groove 110, and when the user needs to put the earphone 20 into the charging box 10, the charging box 10 can close the mounting groove 110, one side of the receiving chamber 300 adjacent to the cover 200 is formed with a placing cavity 330, the placing cavity 330 is used for receiving the earphone 20, so that the position of the earphone 20 is fixed, so that the earphone 20 is kept stable in the receiving chamber 300, the driving device 400 is arranged in the mounting groove 110, a power output end of the driving device 400 is connected to the cover 200, so that the driving device 400 is used for driving the cover 200 to open and close the mounting groove 110, so that the driving device 400 can control the opening and closing of the cover 200 when the earphone 20 is taken out from the charging box 10, and the cover 200 can be closed, and the opening and closing of the cover 200 can be automatically controlled when the user needs to take out the earphone 20 from the charging box 10.
As shown in fig. 1 to 4, in the present embodiment, when a user needs to take out the earphone 20 from the charging box 10, first the driving device 400 outputs power, and a power output end of the driving device 400 is connected to the cover 200, so that the power output by the driving device 400 drives the cover 200 to rotate in a first direction, and the driving device 400 controls the cover 200 to open, thereby the user omits an operation of manually opening the cover 200, and after the cover 200 is opened, the earphone 20 is taken out from the placing cavity 330. When the charging box 10 needs to store the earphone 20 in the charging box 10, the earphone 20 is firstly placed in the placing cavity 330, then the driving device 400 outputs power, and the power output end of the driving device 400 is connected to the cover body 200, so that the power output by the driving device 400 drives the cover body 200 to rotate in the second direction, the driving device 400 controls the cover body 200 to be closed, and further, the user omits the operation of manually closing the cover body 200.
In the charging box 10, the containing chamber 300 is formed with the placing chamber 330, so that the placing chamber 330 can be used for placing the earphone 20, the cover body 200 is rotatably connected to the casing 100, so that the cover body 200 is used for opening and closing the mounting groove 110, and the driving device 400 is connected to the cover body 200, so that the driving device 400 can be used for controlling the opening and closing of the cover body 200, that is, the automatic opening and closing of the cover body 200 are realized, so that a user omits the manual opening operation when using the wireless earphone, the convenience for taking and placing the earphone 20 is improved, and the convenience for the user when using the wireless earphone is also higher.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A charging box, comprising:
a housing formed with a mounting groove;
the cover body is rotationally connected to the shell and used for opening and closing the mounting groove;
a placing cavity is formed on one side of the containing bin, which is adjacent to the cover body, and the placing cavity is used for containing earphones; and
and the driving device is arranged in the mounting groove, and the power output end of the driving device is connected to the cover body, so that the driving device is used for driving the cover body to open and close the mounting groove.
2. A charging box according to claim 1, wherein said driving means comprises:
the driving motor is arranged in the mounting groove; and
and the input end of the meshing transmission mechanism is connected to the output end of the driving motor, and the output end of the meshing transmission mechanism is connected to the cover body.
3. A charging box according to claim 2, wherein said engagement transmission mechanism comprises:
the driving gear is arranged on the output end of the driving motor;
the power transmission assembly comprises a rotating shaft, a transmission gear and a driven gear which are sequentially connected, the rotating shaft is arranged on one side of the shell, and the driven gear is in transmission connection with the driving gear; and
the transmission rack assembly comprises a first rack and a second rack which are connected, the first rack is in transmission connection with the transmission gear, and the second rack is connected with the cover body.
4. The charging box according to claim 3, wherein the cover includes a meshing portion and an opening/closing portion connected to each other, the meshing portion is in transmission connection with the second rack, and a space avoiding groove is formed on a side of the opening/closing portion adjacent to the placing cavity.
5. The charging box according to claim 1, wherein the accommodating bin comprises a fixed bin body and a lifting bin body, the fixed bin body is fixedly connected in the mounting groove, the fixed bin body is formed with a first placing groove, the lifting bin body is slidably connected to the fixed bin body, the lifting bin body is formed with a second placing groove, and the second placing groove and the first placing groove together form the placing cavity when lifted to a preset position;
the power output end of the driving device is also connected with the lifting bin body, so that the driving device is also used for driving the lifting bin body to lift.
6. A charging box according to claim 5, characterized in that said fixed bin body is formed with a housing cavity for housing said elevating bin body.
7. The charging cartridge according to claim 5, wherein the driving means comprises:
the driving motor is arranged in the mounting groove; and
and the input end of the meshing transmission mechanism is connected to the output end of the driving motor, and the output end of the meshing transmission mechanism is connected to the cover body.
8. The charging cartridge according to claim 7, wherein the engagement transmission mechanism comprises:
the driving gear is arranged at the output end of the driving motor;
the power transmission assembly comprises a rotating shaft, a transmission gear and a driven gear which are sequentially connected, the rotating shaft is arranged on one side of the shell, and the driven gear is in transmission connection with the driving gear; and
the transmission rack assembly comprises a first rack and a second rack, the first rack and the second rack are fixedly connected to the lifting bin body, the first rack is in transmission connection with the transmission gear, and the second rack is connected with the cover body.
9. The charging box according to claim 8, wherein the cover body comprises a meshing part and an opening and closing part which are connected, the meshing part is in transmission connection with the second rack, and a clearance groove is formed on one side of the opening and closing part adjacent to the placing cavity; and/or the presence of a catalyst in the reaction mixture,
the charging box further comprises a connecting rod, a first connecting hole is formed in the opening and closing portion, a second connecting hole is formed in the fixed bin body, the connecting rod penetrates through the first connecting hole and the second connecting hole, and the connecting rod is respectively in rotating sleeve joint with the opening and closing portion and the fixed bin body.
10. A wireless earphone, comprising an earphone and the charging box of any one of claims 1 to 9, wherein the earphone is accommodated in the accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133175.2U CN218450450U (en) | 2022-08-11 | 2022-08-11 | Charging box and wireless earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133175.2U CN218450450U (en) | 2022-08-11 | 2022-08-11 | Charging box and wireless earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218450450U true CN218450450U (en) | 2023-02-03 |
Family
ID=85093110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222133175.2U Active CN218450450U (en) | 2022-08-11 | 2022-08-11 | Charging box and wireless earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218450450U (en) |
-
2022
- 2022-08-11 CN CN202222133175.2U patent/CN218450450U/en active Active
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