CN220510165U - External battery capacity expansion structure for electronic equipment and camera equipment - Google Patents
External battery capacity expansion structure for electronic equipment and camera equipment Download PDFInfo
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- CN220510165U CN220510165U CN202322044599.6U CN202322044599U CN220510165U CN 220510165 U CN220510165 U CN 220510165U CN 202322044599 U CN202322044599 U CN 202322044599U CN 220510165 U CN220510165 U CN 220510165U
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- battery compartment
- battery
- capacity expansion
- expansion structure
- main battery
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000011514 reflex Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The present utility model relates to the field of external capacity expansion technologies for batteries, and in particular, to an external capacity expansion structure for a battery of an electronic device and an image capturing device. On the basis of the existing main battery compartment, a standby battery compartment is externally arranged outside the main battery compartment and is detachably connected with the electronic equipment where the main battery compartment is located, and the conductive terminals of the standby battery compartment are connected with the conductive terminals of the main battery compartment in parallel. The power supply of the main battery compartment is not required to be disconnected during connection, the battery expansion function is realized, the battery can be fixed on the body of the electronic equipment in the form of a standby battery, and when the power supply of the main battery compartment is consumed, the power supply of the standby battery compartment is automatically connected and started, so that the loss of data is prevented.
Description
Technical Field
The present utility model relates to the field of electronic devices, and in particular, to an external battery capacity expansion structure for an electronic device and an imaging device.
Background
Along with the development of social industry, battery capacity expansion is widely applied to various fields such as industrial mechanical equipment, medical equipment, carrier equipment, mobile phones, outdoor life and the like, such as electric screwdrivers, mobile phone charger, outdoor electric appliances and the like, but the current common battery capacity expansion influences the use and the space size of the electric appliances to a certain extent, so that the electric appliances are inconvenient to carry, complicated and attractive in assembly and wiring, and the electric appliances and the batteries cannot be integrated and are split and switched at will.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the external capacity expansion structure of the battery for the electronic equipment and the camera equipment are provided, when the power supply of the main battery compartment is consumed, the power supply of the standby battery compartment is automatically connected and started, and data loss is prevented.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the external capacity expansion structure of the battery for the electronic equipment comprises a standby battery compartment which is arranged outside the electronic equipment and detachably connected with the electronic equipment, and a conductive terminal of the standby battery compartment is connected with a conductive terminal of the main battery compartment in parallel.
Further, a male contact is embedded on the bin wall of the main battery bin, one end of the male contact extends into the main battery bin and is electrically connected with a conductive terminal in the main battery bin, the other end of the male contact extends to the outside of the main battery bin, a female contact is embedded on the bin wall of the standby battery bin corresponding to the main battery bin, the female contact is electrically connected with the conductive terminal in the standby battery bin, and the female contact is matched with the male contact.
Further, a limit groove is formed in the position, corresponding to the male contact, of the bin wall of the main battery bin, the male contact is located at the bottom of the limit groove, a limit boss matched with the limit groove is arranged in the position, corresponding to the female contact, of the bin wall of the standby battery bin, and the female contact is located on the limit boss.
Further, a first magnetic block is arranged in the limit groove and positioned at one side of the male contact, and a second magnetic block magnetically attracted with the first magnetic block is arranged on the limit boss and positioned at one side of the female contact.
Further, the magnetic shielding device further comprises a shielding plug, the shielding plug is matched with the limiting groove, and a third magnetic block magnetically attracted with the first magnetic block is embedded on the shielding plug.
Further, a cavity for accommodating the protective plug is arranged in the main battery compartment, and a fourth magnetic block magnetically attracted with the third magnetic block is arranged on the inner side wall of the cavity.
Further, the male contact is located on the upper surface of the main battery compartment, the spare battery compartment is in a barb shape, and the female contact is located on the surface, facing downwards, of the inner side of the barb, corresponding to the spare battery compartment.
Further, the electronic equipment comprises a locking assembly, the locking assembly comprises a screw and a nut, a penetrating lock hole is formed in the position, corresponding to the short side of the barb, of the battery compartment, the nut is embedded in the lock hole, and when the battery compartment is installed on the electronic equipment, the tail of the screw passes through the nut and then abuts against the electronic equipment so that the battery compartment is fixedly connected with the electronic equipment.
Further, the locking assembly further comprises an anti-slip rubber sleeve, and the anti-slip rubber sleeve is sleeved on the tail end face of the screw.
An image pickup apparatus includes the battery external capacity expansion structure for an electronic apparatus.
The utility model has the beneficial effects that:
the utility model provides an external capacity expansion structure of a battery for electronic equipment and camera equipment. The power supply of the main battery compartment is not required to be disconnected during connection, the battery expansion function is realized, the battery can be fixed on the body of the electronic equipment in the form of a standby battery, and when the power supply of the main battery compartment is consumed, the power supply of the standby battery compartment is automatically connected and started, so that the loss of data is prevented.
Drawings
Fig. 1 is a structural exploded view of an external capacity expansion structure for a battery of an electronic device according to the present utility model;
fig. 2 is a schematic structural diagram of an electronic device with an external capacity expansion structure for a battery of the electronic device according to the present utility model;
fig. 3 is a schematic structural diagram of a battery compartment of the external capacity expansion structure for a battery of an electronic device according to the present utility model;
fig. 4 is a schematic diagram of an assembly structure of a locking assembly of a battery external capacity expansion structure for an electronic device according to the present utility model;
fig. 5 is a schematic diagram of an assembly structure of a locking assembly of a battery external capacity expansion structure for an electronic device according to the present utility model;
fig. 6 is a schematic structural diagram of a protection plug of an external capacity expansion structure of a battery for an electronic device according to the present utility model;
fig. 7 is a schematic structural diagram of an assembled external capacity expansion structure of a battery for an electronic device according to the present utility model;
fig. 8 is a cross-sectional view of an electronic device with an external capacity expansion structure for a battery of the electronic device according to the present utility model;
fig. 9 is a schematic diagram illustrating an assembly procedure of a battery external capacity expansion structure for an electronic device according to the present utility model;
description of the reference numerals:
1. a single-lens reflex camera; 11. a male contact; 12. a first magnetic block; 13. a limit groove; 14. a main battery compartment; 15. a fourth magnetic block;
2. preparing a battery compartment; 21. a female contact; 22. a limit boss; 23. a second magnetic block; 24. 6800mah lithium battery; 25. a power input/output port;
3. a locking assembly; 31. a screw; 32. a nut; 33. an anti-slip rubber sleeve;
4. a protective plug; 41. a third magnetic block; 42. and positioning holes.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 9, the external capacity expansion structure of a battery for an electronic device provided by the present utility model is provided with a main battery compartment inside the electronic device, the external capacity expansion structure of a battery includes a standby battery compartment which is disposed outside the electronic device and detachably connected to the electronic device, and a conductive terminal of the standby battery compartment is connected in parallel with a conductive terminal of the main battery compartment.
From the above description, the beneficial effects of the utility model are as follows:
the utility model provides an external capacity expansion structure of a battery for electronic equipment, which is characterized in that a standby battery compartment is externally arranged on the basis of an existing main battery compartment, and is detachably connected with the electronic equipment where the main battery compartment is located, and a conductive terminal of the standby battery compartment is connected with a conductive terminal of the main battery compartment in parallel. The power supply of the main battery compartment is not required to be disconnected during connection, the battery expansion function is realized, the battery can be fixed on the body of the electronic equipment in the form of a standby battery, and when the power supply of the main battery compartment is consumed, the power supply of the standby battery compartment is automatically connected and started, so that the loss of data is prevented.
Further, a male contact is embedded on the bin wall of the main battery bin, one end of the male contact extends into the main battery bin and is electrically connected with a conductive terminal in the main battery bin, the other end of the male contact extends to the outside of the main battery bin, a female contact is embedded on the bin wall of the standby battery bin corresponding to the main battery bin, the female contact is electrically connected with the conductive terminal in the standby battery bin, and the female contact is matched with the male contact.
As is clear from the above description, the parallel connection of the conductive terminals of the standby battery compartment and the conductive terminals of the main battery compartment is realized by the cooperation of the male contact and the female contact.
Further, a limit groove is formed in the position, corresponding to the male contact, of the bin wall of the main battery bin, the male contact is located at the bottom of the limit groove, a limit boss matched with the limit groove is arranged in the position, corresponding to the female contact, of the bin wall of the standby battery bin, and the female contact is located on the limit boss.
As can be seen from the above description, the limit grooves and the limit bosses are arranged to be matched with each other, which is beneficial to the butt joint and the matching of the male contact and the female contact.
Further, a first magnetic block is arranged in the limit groove and positioned at one side of the male contact, and a second magnetic block magnetically attracted with the first magnetic block is arranged on the limit boss and positioned at one side of the female contact.
From the above description, by arranging the magnetic blocks, the butt joint efficiency and the butt joint precision of the male contact and the female contact can be further improved by utilizing the magnetic attraction force of the magnetic blocks during assembly.
Further, the protection plug is matched with the limit groove, a third magnetic block magnetically attracted with the first magnetic block is embedded on the protection plug, and a positioning hole in interference fit with the male contact is formed in the protection plug.
It can be seen from the above description that the protection plug is provided, which has the functions of dust prevention, water prevention and contact oxidation prevention, the protection plug is inlaid with a magnet and is provided with a positioning hole, the interference fit of the positioning Kong Gong contact is utilized, the magnets are attracted to each other, the protection plug can be well adsorbed on the limiting groove, and the protection plug is not easy to fall off naturally, so that the protection plug is required to be installed after being taken down before the external battery is installed.
Further, a cavity for accommodating the protective plug is arranged in the main battery compartment, and a fourth magnetic block magnetically attracted with the third magnetic block is arranged on the inner side wall of the cavity.
It can be seen from the above description that, in order to prevent the protection plug from losing, a corresponding cavity is designed in the main battery compartment, and a magnet is installed, so that the protection plug can be placed and adsorbed in the main battery compartment, and the protection plug is convenient to store and take.
Further, the male contact is located on the upper surface of the main battery compartment, the spare battery compartment is in a barb shape, and the female contact is located on the surface, facing downwards, of the inner side of the barb, corresponding to the spare battery compartment.
As can be seen from the above description, the male contact and the female contact are respectively provided on both sides in the vertical direction, and are not easily separated.
Further, the electronic equipment comprises a locking assembly, the locking assembly comprises a screw and a nut, a penetrating lock hole is formed in the position, corresponding to the short side of the barb, of the battery compartment, the nut is embedded in the lock hole, and when the battery compartment is installed on the electronic equipment, the tail of the screw passes through the nut and then abuts against the electronic equipment so that the battery compartment is fixedly connected with the electronic equipment.
The above description shows that the battery compartment is in a barb shape, such as a 7-shaped design, and is buckled above the electronic equipment, and then the battery compartment is tightly locked on the electronic equipment by using the locking component, so that the electronic equipment does not need to reserve screw holes, and the battery compartment and the electronic equipment are assembled.
Further, the locking assembly further comprises an anti-slip rubber sleeve, and the anti-slip rubber sleeve is sleeved on the tail end face of the screw.
From the above description, the anti-skid rubber sleeve is sleeved on the tail end surface of the screw, so that the screw does not need to scratch the surface of the electronic equipment, and the anti-skid effect is also achieved.
An image pickup apparatus includes the battery external capacity expansion structure for an electronic apparatus.
As is apparent from the above description, a long-term use of the image pickup apparatus is achieved.
Referring to fig. 1 to 9, a first embodiment of the present utility model is as follows:
a battery external dilatation structure for single lens reflex camera, establish main battery compartment 14 in the single lens reflex camera 1, the battery capacity in the main battery compartment 14 is 6800mah lithium cell, battery external dilatation structure is including locating single lens reflex camera 1 outside and with single lens reflex camera 1 detachable battery compartment 2 that is connected, battery compartment 2's conductive terminal and main battery compartment 14's conductive terminal parallel connection.
In this embodiment, the electronic apparatus is an image capturing apparatus, such as a single-lens reflex camera.
The upper surface of the main battery bin 14 is provided with a square limit groove 13, and two male contacts 11, in particular POGOPIN 2pin male contacts, are embedded at the bottom of the limit groove 13; one end of the male contact 11 extends into the main battery compartment 14 and is electrically connected with a conductive terminal in the main battery compartment 14, the other end of the male contact 11 extends to the outside of the main battery compartment 14, and a first magnetic block 12 is arranged in the limit groove 13 and positioned at one side of the male contact;
the battery compartment 2 is in a barb shape, such as a 7-shaped design, a limiting boss 22 matched with the limiting groove is arranged on the surface of the battery compartment, which corresponds to the barb and faces downwards, and a female contact 21 matched with the male contact 11, specifically a POGOPIN 2pin female contact, is embedded on the limiting boss 22. The female contact 21 is electrically connected with a conductive terminal in the battery compartment. And a second magnetic block 23 magnetically attracted with the first magnetic block 12 is arranged on the limit boss 22 and positioned on one side of the female contact. By arranging the magnetic blocks, the butt joint efficiency and the butt joint precision of the male contact and the female contact can be further improved by utilizing the magnetic attraction force of the magnetic blocks during assembly. The battery capacity in the battery compartment was 6800mah lithium battery 24.
When the battery compartment is assembled, the battery compartment is buckled above the single-lens reflex camera, and then the battery compartment is tightly locked on the single-lens reflex camera by utilizing the locking component, and the single-lens reflex camera does not need to be reserved with screw holes, so that the battery compartment and the single-lens reflex camera are assembled. The concrete locking assembly 3 comprises a screw 31, a nut 32 and an anti-slip rubber sleeve 33, wherein the anti-slip rubber sleeve 33 is sleeved on the tail end face of the screw 31. The short side position that is equipped with the lockhole that runs through that is equipped with to the battery compartment 2 corresponds the barb, nut 32 inlays to be located in the lockhole, when battery compartment is installed on the single anti-camera, the afterbody of screw passes the anti-skidding rubber sleeve on the afterbody terminal surface of screw behind the nut and single anti-phase machine butt so that battery compartment and single anti-phase machine fastening connection are equipped with to the battery compartment, adopt such design, need not worry the screw and scrape colored electronic equipment surface to still play skid-proof effect.
When not using and prepare the battery compartment, through setting up protection stopper 4, protection stopper 4 and spacing recess 13 looks adaptation, just inlay on the protection stopper 4 be equipped with first magnetic path 12 magnetism inhale the third magnetic path 41, be equipped with on the protection stopper 4 with public contact 11 interference fit's locating hole 42. The protection plug can play a role in preventing dust, water and contact oxidation, a magnet is inlaid on the protection plug, a positioning hole is formed in the protection plug, the interference fit of the positioning Kong Gong contact is utilized, the magnets are utilized for opposite attraction, the protection plug can be well adsorbed on the limiting groove and is not easy to naturally fall off, and the protection plug is required to be installed after being taken down before an external battery is installed. In order to prevent the protection stopper from losing, be equipped with the cavity that holds the protection stopper in main battery compartment, be equipped with on the cavity inner wall with the fourth magnetic path 15 that the magnetism of third magnetic path 41 was inhaled, can place the protection stopper and adsorb inside main battery compartment, facilitate storage and take.
The battery compartment (namely the external battery module) is simple in mounting mode, can be fastened by bare hands without tools, is high in reliability, is not easy to fall off, overcomes the limitation of the original camera space, improves the service time of the camera, and can flexibly adjust and increase the battery capacity.
The POGOPIN male contact of the single-lens reflex camera is provided with the rubber protection plug which can play roles of dust prevention, water prevention and contact oxidation, the protection plug is inlaid with a magnet and is provided with two positioning holes, the magnet is attracted with the magnet on the single-lens reflex camera by utilizing the interference fit of the positioning holes and the POGOPIN male contact, the magnet is adsorbed on the camera in opposite directions, the protection plug is not easy to naturally fall off, the protection plug is required to be scratched firstly before the external battery module is installed, the corresponding slot position is designed in the main battery compartment for preventing the protection plug from being lost, and the magnet is arranged in the main battery compartment, so that the protection plug can be placed and adsorbed in the main battery compartment, and is convenient to store and take;
the battery compartment adopts the design of the 7-shaped barb, is buckled above the single-lens reflex camera, and is tightly locked on the camera by screwing the fasteners by three hands, so that the camera does not need to reserve screw holes, and the camera surface is not required to be scratched by eye screws, and the three fasteners are assembled in a matched way before leaving the factory, and the principle is as follows: firstly, embedding a square nut on a corresponding square groove of a battery compartment, sticking the square nut, then enabling a lifting ring screw to pass through the square nut along a thread, and finally sleeving an anti-skid rubber sleeve on the tail part of the lifting ring screw, wherein when the clamping is needed, the lifting ring screw is only needed to be manually screwed down, and the square nut is better than a common hexagonal nut and is not easy to loosen and rotate; the lifting ring screw has the advantages that the lifting ring can be turned over, the lifting ring can be turned straight by hand to be screwed up during screwing, the lifting ring can be turned flat after screwing, the sight is not disturbed suddenly, the lifting ring screw is attractive and easy to operate, and 3 hand screwing fasteners are designed synchronously for considering balance and fastening stability. The battery compartment has the advantages of being stable and reliable in 7 shape, maximizing space utilization rate, and being easy to assemble and disassemble, and being fastened on the single-lens reflex camera on the premise of not affecting focusing of the grab handle and the lens.
The contact mode of the battery compartment and the single-lens reflex camera adopts a POGOPIN 2pin gold-plated metal contact, the contact comprises a male contact and a female contact, the male contact is arranged on the single-lens reflex camera, the female contact is arranged on the battery compartment, a limit boss on the battery compartment is matched with a limit groove on the single-lens reflex camera during contact, dislocation during contact of the two contacts is prevented, a magnet is arranged on the limit boss, the two magnets are attracted to each other, the contact stability is guaranteed, in addition, the POGOPIN male contact adopts a spring thimble type, and forms elastic compression contact during contact with the POGOPIN female contact, so that the contact stability is further guaranteed.
The bottom of the battery compartment is provided with a power input/output port 25, so that the battery compartment can charge a mobile phone or other lighting equipment under special conditions.
As shown in fig. 9, the assembly is sequentially performed according to steps 1 to 4, to obtain a single-lens reflex camera with a battery compartment.
In summary, according to the external battery capacity expansion structure for the electronic device and the image pickup device provided by the utility model, on the basis of the existing main battery compartment, a standby battery compartment is externally arranged outside the main battery compartment, and the standby battery compartment is detachably connected with the electronic device where the main battery compartment is located, and the conductive terminal of the standby battery compartment is connected with the conductive terminal of the main battery compartment in parallel. The power supply of the main battery compartment is not required to be disconnected during connection, the battery expansion function is realized, the battery can be fixed on the body of the electronic equipment in the form of a standby battery, and when the power supply of the main battery compartment is consumed, the power supply of the standby battery compartment is automatically connected and started, so that the loss of data is prevented.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The battery external capacity expansion structure for the electronic equipment is characterized in that the battery external capacity expansion structure comprises a battery backup bin which is arranged outside the electronic equipment and detachably connected with the electronic equipment, and a conductive terminal of the battery backup bin is connected with a conductive terminal of the main battery bin in parallel.
2. The external capacity expansion structure of a battery for electronic equipment according to claim 1, wherein a male contact is embedded on a wall of the main battery compartment, one end of the male contact extends into the main battery compartment and is electrically connected with a conductive terminal in the main battery compartment, the other end of the male contact extends to the outside of the main battery compartment, a female contact is embedded on a wall of the battery compartment corresponding to the main battery compartment, the female contact is electrically connected with the conductive terminal in the battery compartment, and the female contact is matched with the male contact.
3. The external capacity expansion structure of a battery for electronic equipment according to claim 2, wherein a limit groove is formed in the position, corresponding to the male contact, of the bin wall of the main battery bin, the male contact is located at the bottom of the limit groove, a limit boss matched with the limit groove is formed in the position, corresponding to the female contact, of the bin wall of the standby battery bin, and the female contact is located on the limit boss.
4. The external capacity expansion structure for a battery of an electronic device according to claim 3, wherein a first magnetic block is arranged in the limit groove and positioned on one side of the male contact, and a second magnetic block magnetically attracted with the first magnetic block is arranged on the limit boss and positioned on one side of the female contact.
5. The external capacity expansion structure for a battery of an electronic device according to claim 4, further comprising a protection plug, wherein the protection plug is matched with the limit groove, and a third magnetic block magnetically attracted with the first magnetic block is embedded on the protection plug.
6. The external capacity expansion structure for a battery of an electronic device according to claim 5, wherein a cavity for accommodating a protection plug is arranged in the main battery compartment, and a fourth magnetic block magnetically attracted with the third magnetic block is arranged on the inner side wall of the cavity.
7. The external capacity expansion structure of a battery for an electronic device according to claim 2, wherein the male contact is located on an upper surface of the main battery compartment, the auxiliary battery compartment is in a barb shape, and the female contact is located on a surface of the auxiliary battery compartment, which faces downwards, corresponding to the inner side of the barb.
8. The external capacity expansion structure of a battery for an electronic device according to claim 7, further comprising a locking assembly, wherein the locking assembly comprises a screw and a nut, a through lock hole is formed in the position, corresponding to the short side of the barb, of the battery compartment, the nut is embedded in the lock hole, and when the battery compartment is mounted on the electronic device, the tail of the screw abuts against the electronic device after penetrating through the nut, so that the battery compartment is fixedly connected with the electronic device.
9. The external expansion structure of a battery for an electronic device of claim 8, wherein the locking assembly further comprises an anti-slip rubber sleeve, the anti-slip rubber sleeve being disposed over the tail end face of the screw.
10. An image pickup apparatus comprising the battery external capacity expansion structure for an electronic apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322044599.6U CN220510165U (en) | 2023-08-01 | 2023-08-01 | External battery capacity expansion structure for electronic equipment and camera equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322044599.6U CN220510165U (en) | 2023-08-01 | 2023-08-01 | External battery capacity expansion structure for electronic equipment and camera equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220510165U true CN220510165U (en) | 2024-02-20 |
Family
ID=89882250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322044599.6U Active CN220510165U (en) | 2023-08-01 | 2023-08-01 | External battery capacity expansion structure for electronic equipment and camera equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220510165U (en) |
-
2023
- 2023-08-01 CN CN202322044599.6U patent/CN220510165U/en active Active
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