CN222015539U - A waterproof lithium-ion battery - Google Patents
A waterproof lithium-ion battery Download PDFInfo
- Publication number
- CN222015539U CN222015539U CN202420552195.XU CN202420552195U CN222015539U CN 222015539 U CN222015539 U CN 222015539U CN 202420552195 U CN202420552195 U CN 202420552195U CN 222015539 U CN222015539 U CN 222015539U
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- top surface
- battery
- storage box
- ion battery
- lithium ion
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
本实用新型公开了一种防水锂离子电池，本实用新型涉及电池技术领域。该防水锂离子电池，包括电池主体，所述电池主体上的正极和负极均连接有线缆，还包括：收纳盒，所述收纳盒设置于所述电池主体外侧，所述收纳盒用于对电池主体进行收纳；封堵组件，所述封堵组件设置于所述收纳盒顶部开口端，并且两个所述线缆贯穿所述封堵组件顶部表面中部，所述封堵组件用于配合收纳盒以实现对电池主体进行防水防护；压线组件，所述压线组件设置于所述封堵组件顶部表面一侧，所述压线组件用于对线缆进行限位；以及限位组件，所述限位组件设置有两个，本实用新型可防止外界水渍损坏锂离子电池，从而能够提高锂离子电池使用安全和寿命。
The utility model discloses a waterproof lithium-ion battery, and the utility model relates to the field of battery technology. The waterproof lithium-ion battery includes a battery body, the positive and negative electrodes on the battery body are connected to cables, and also includes: a storage box, the storage box is arranged outside the battery body, the storage box is used to store the battery body; a plugging component, the plugging component is arranged at the top open end of the storage box, and the two cables pass through the middle of the top surface of the plugging component, the plugging component is used to cooperate with the storage box to achieve waterproof protection of the battery body; a wire pressing component, the wire pressing component is arranged on one side of the top surface of the plugging component, the wire pressing component is used to limit the cable; and a limiting component, the limiting component is provided with two, the utility model can prevent external water stains from damaging the lithium-ion battery, thereby improving the safety and life of the lithium-ion battery.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a waterproof lithium ion battery.
Background
Lithium ion batteries are a common type of rechargeable battery, widely used in the fields of mobile devices, electric vehicles, energy storage systems, etc., and are considered as important milestones in modern battery technology because of their advantages of high energy density, long cycle life, low self-discharge rate, and lighter weight, due to the charge storage and release achieved by the back and forth migration of one or more lithium ions (Li +) between positive and negative electrodes.
However, when the existing lithium ion battery is used, although the purpose of supplying power can be achieved, the existing lithium ion battery is easy to cause internal short circuit of the lithium ion battery when water erosion is encountered, so that the lithium ion battery is damaged, the use safety and the service life of the lithium ion battery are reduced, and therefore the waterproof lithium ion battery is provided for solving the problems.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a waterproof lithium ion battery, which solves the problems that the internal short circuit of the lithium ion battery is easy to cause the damage of the lithium ion battery when the waterproof lithium ion battery is corroded by water, and the use safety and the service life of the lithium ion battery are reduced.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a waterproof lithium ion battery, includes the battery body, positive pole and negative pole on the battery body all are connected with the cable, still include:
The storage box is arranged outside the battery body and is used for storing the battery body;
The plugging assembly is arranged at the top opening end of the storage box, two cables penetrate through the middle part of the top surface of the plugging assembly, and the plugging assembly is used for being matched with the storage box to realize waterproof protection on the battery main body;
the wire pressing assembly is arranged on one side of the top surface of the plugging assembly and used for limiting a wire; and
The limiting assemblies are arranged in two, the two limiting assemblies are respectively inlaid on two sides of the top surface of the plugging assembly, the two bottom ends of the limiting assemblies are connected with the top surface of the battery body, and the limiting assemblies are used for propping and limiting the battery body.
Preferably, the plugging assembly comprises a sealing cover arranged at the top opening end of the storage box, a stepped hole is formed in the middle of the top surface of the sealing cover, two cables penetrate through the inner cavity of the stepped hole, and sealing glue is filled in the inner cavity of the stepped hole;
First through holes are formed in four corners of the top surface of the sealing cover, positioning screws are inserted into the inner cavities of each first through hole, and the bottom ends of the positioning screws are rotationally connected with the top surface of the storage box;
Clamping grooves for clamping the limiting component are formed in two sides of the bottom surface of the sealing cover.
Preferably, the pressing line assembly comprises a positioning strip arranged on one side of the top surface of the sealing cover, a pressing bar is arranged right above the positioning strip, second through holes are formed in two sides of the top surface of the pressing bar, and limiting screws are inserted into the cavities of the two second through holes;
and the two sides of the top surface of the positioning strip are provided with internal threaded holes, and the inner cavities of the internal threaded holes are rotationally connected with the bottom ends of the limit screws.
Preferably, the top surface of the positioning strip and the bottom surface of the pressing strip are provided with wire passing grooves for clamping the cables.
Preferably, the limiting component comprises a clamping block arranged in the inner cavity of the clamping groove and a pressing plate arranged on one side of the top surface of the battery main body;
Springs are arranged on two sides of the top surface of the pressing plate, and the top ends of the springs are connected with two sides of the bottom surface of the clamping block.
Preferably, movable columns are arranged on two sides of the bottom surface of the clamping block and located in the two inner cavities of the spring, sleeves are inserted into the bottom ends of the two movable columns, and the bottom ends of the two sleeves are connected with the top surface of the pressing plate.
Preferably, the storage box further comprises a plurality of reinforcing rib rings, and the plurality of reinforcing rib rings are respectively arranged on the outer wall surface of the storage box.
Advantageous effects
The utility model provides a waterproof lithium ion battery. Compared with the prior art, the method has the following beneficial effects:
This waterproof lithium ion battery, through the receiver, can accomodate the battery main part, can cooperate the shutoff subassembly to shelter from the protection again, thereby can prevent external water stain erosion battery main part, and then can protect the battery main part, in order to can improve the safety that the battery main part used, because positive pole on the battery main part and negative pole all are connected with the cable, and two cables all run through the shutoff subassembly, the shutoff subassembly can make things convenient for two cables to run through from top to bottom this moment, can seal two cables again, and then can prevent that external water stain from getting into the receiver from two junction in order to can protect the battery main part;
Through the line ball subassembly, can carry out the centre gripping location to two cable one ends that just go out the shutoff subassembly, and then can prevent that the cable from causing the stability that shutoff subassembly and cable are connected when receiving external force and dragging, through two spacing subassemblies simultaneously, can install at shutoff subassembly top surface, can make its bottom support at battery body top surface again, and then can be spacing to the battery body, prevent that the battery body from rocking by a wide margin in the receiver, can also make things convenient for the staff follow-up with battery body dismantlement in the receiver simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic cross-sectional view of a plugging assembly according to the present utility model;
FIG. 4 is a schematic diagram of an explosion structure of the wire pressing assembly of the present utility model;
fig. 5 is a schematic diagram of an explosion structure of the limiting assembly of the present utility model.
In the figure: 1. a battery main body; 2. a cable; 3. a storage box; 4. a plugging assembly; 41. a cover; 42. a stepped hole; 43. sealing glue; 44. a first through hole; 45. a set screw; 46. a clamping groove; 5. a wire pressing assembly; 51. a positioning strip; 52. pressing strips; 53. a second through hole; 54. a limit screw; 55. an internal threaded hole; 6. a limit component; 61. a clamping block; 62. a spring; 63. a pressing plate; 64. a movable column; 65. a sleeve; 7. reinforcing rib ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a waterproof lithium ion battery, includes battery body 1, and positive pole and negative pole on the battery body 1 all are connected with cable 2, still includes: a storage case 3, the storage case 3 being provided outside the battery body 1, the storage case 3 being configured to store the battery body 1; the plugging assembly 4 is arranged at the top opening end of the storage box 3, the two cables 2 penetrate through the middle part of the top surface of the plugging assembly 4, and the plugging assembly 4 is used for being matched with the storage box 3 to realize waterproof protection on the battery main body 1; the wire pressing assembly 5 is arranged on one side of the top surface of the plugging assembly 4, and the wire pressing assembly 5 is used for limiting the cable 2; the two limiting assemblies 6 are respectively embedded on two sides of the top surface of the plugging assembly 4, the bottom ends of the two limiting assemblies 6 are connected with the top surface of the battery main body 1, and the limiting assemblies 6 are used for propping and limiting the battery main body 1;
Through receiver 3, can accomodate battery body 1, can cooperate shutoff subassembly 4 to shelter from the protection again, thereby can prevent external water stain erosion battery body 1, and then can protect battery body 1, so that can improve the safety that battery body 1 used, because positive pole and negative pole on the battery body 1 all are connected with cable 2, and two cable 2 all run through shutoff subassembly 4, shutoff subassembly 4 can make things convenient for two cable 2 to run through from top to bottom this moment, can seal two cable 2 again, and then can prevent that external water stain from getting into receiver 3 from the two junction, so as to can protect battery body 1, can carry out the centre gripping location to two cable 2 one ends that just go out shutoff subassembly 4 simultaneously, and then can prevent that cable 2 from causing the stability that shutoff subassembly 4 and cable 2 are connected when being pulled by external force, can install at subassembly 4 top surface simultaneously, can make its bottom support at battery body 1 top surface again, and then can prevent that battery body 1 from spacing box 1 from getting off the battery body 3 in the receiver is big range, can also conveniently dismantle the receiver 3 from following the follow-up personnel in the work.
Referring to fig. 2 and 3, the plugging assembly 4 includes a sealing cover 41 disposed at an open end of the top of the storage box 3, a stepped hole 42 is formed in the middle of the top surface of the sealing cover 41, two cables 2 penetrate through the inner cavity of the stepped hole 42, and the inner cavity of the stepped hole 42 is filled with sealant 43; the four corners of the top surface of the sealing cover 41 are respectively provided with a first through hole 44, the inner cavity of each first through hole 44 is inserted with a set screw 45, and the bottom end of the set screw 45 is rotationally connected with the top surface of the storage box 3; both sides of the bottom surface of the cover 41 are provided with clamping grooves 46 for clamping the limiting component 6;
Through the closing cap 41 among the shutoff subassembly 4, can cover at receiver 3 open top end, can provide the space to shoulder hole 42 and four first through-holes 44 again, then through first through-hole 44, can install at receiver 3 top through four set screws 45, thereby can play and install fixedly to closing cap 41, and then can make closing cap 41 carry out the shutoff to receiver 3 open end, then through shoulder hole 42, can make things convenient for two cables 2 to run through closing cap 41, can make things convenient for the staff to pour into sealant 43 at its inner chamber again, and then can pack shutoff to shoulder hole 42 and cable 2, prevent external water stain or filth to get into in the receiver 3, through draw-in groove 46 on closing cap 41, can install spacing subassembly 6, and then can improve the stability that spacing subassembly 6 used.
Referring to fig. 2-4, the wire pressing assembly 5 comprises a positioning strip 51 arranged on one side of the top surface of the cover 41, a pressing strip 52 is arranged right above the positioning strip 51, second through holes 53 are formed in two sides of the top surface of the pressing strip 52, and limiting screws 54 are inserted into inner cavities of the two second through holes 53; the two sides of the top surface of the positioning strip 51 are provided with internal threaded holes 55, the inner cavity of each internal threaded hole 55 is rotationally connected with the bottom end of the corresponding limit screw 54, and the top surface of the positioning strip 51 and the bottom surface of the corresponding pressing strip 52 are provided with wire passing grooves for clamping the cable 2;
Through the locating strip 51 in the line ball subassembly 5, can fix in closing cap 41 top surface one side, can provide the space of seting up to crossing wire casing and internal thread hole 55 again, because the layering 52 bottom surface has offered wire casing and second through-hole 53 equally, through peg graft spacing screw 54 on layering 52 second through-hole 53 inner chamber, then rotate its bottom and install on internal thread hole 55, thereby can fix layering 52 at locating strip 51, and then can make locating strip 51 and layering 52 press from both sides tightly spacing in wire casing to cable 2, in order to prevent to cause the stability that shutoff subassembly 4 and cable 2 are connected when cable 2 receives the external force to drag.
Referring to fig. 2, 3 and 5, the limiting component 6 includes a clamping block 61 disposed in the cavity of the clamping groove 46 and a pressing plate 63 disposed on one side of the top surface of the battery body 1; springs 62 are arranged on two sides of the top surface of the pressing plate 63, the top ends of the two springs 62 are connected with two sides of the bottom surface of the two clamping blocks 61, movable columns 64 are arranged on two sides of the bottom surface of the clamping blocks 61 and in the inner cavities of the two springs 62, sleeve pipes 65 are inserted into the bottom ends of the two movable columns 64, and the bottom ends of the two sleeve pipes 65 are connected with the top surface of the pressing plate 63;
Through fixture block 61 in spacing subassembly 6, can install at draw-in groove 46 inner chamber, can install two springs 62 to clamp plate 63 again, thereby can make clamp plate 63 elasticity support at battery body 1 top surface, and then can play spacing purpose to battery body 1, prevent that battery body 1 from rocking in receiver 3, because fixture block 61 bottom surface both sides just lie in two spring 62 inner chamber and be provided with movable post 64, and two movable post 64 bottom all peg graft sleeve pipe 65, two sleeve pipe 65 bottom link to each other with clamp plate 63 top surface simultaneously, so through movable post 64 and sleeve pipe 65, can play the purpose of leading clamp plate 63 from top to bottom, and then can prevent that spring 62 from warping distortion, the stability of clamp plate 63 support on battery body 1 has been guaranteed.
Referring to fig. 1 and 2, the battery pack further comprises a plurality of reinforcing rib rings 7, wherein the reinforcing rib rings 7 are arranged, the plurality of reinforcing rib rings 7 are respectively arranged on the outer wall surface of the storage box 3, so that the structural strength of the storage box 3 can be enhanced, and the protection effect of the storage box 3 on the battery main body 1 can be improved.
During operation, can accomodate battery body 1 through receiver 3, can shelter from the protection again by cooperation shutoff subassembly 4, thereby can prevent external water stain erosion battery body 1, and then can protect battery body 1, so that can improve the safety that battery body 1 used, because anodal and negative pole on the battery body 1 all are connected with cable 2, and two cable 2 all run through shutoff subassembly 4, shutoff subassembly 4 can make things convenient for two cable 2 to run through from top to bottom this moment, can seal two cable 2 again, and then can prevent that external water stain from getting into receiver 3 from the two junction, so as to protect battery body 1, can carry out the centre gripping location to two cable 2 one ends that just go out shutoff subassembly 4 simultaneously, and then can prevent to lead to the fact the stability that shutoff subassembly 4 was connected with cable 2 when cable 2 was pulled by external force, simultaneously through two spacing subassemblies 6, can install at the top surface of shutoff subassembly 4 again, can make its bottom support at battery body 1 top surface, and then can be spacing battery body 1, prevent that battery body 1 from following 3 from dismantling the battery body 3 and can also be detached from the follow-up in the receiver 3 and can conveniently take place in the receiver 3.
Through the closing cap 41 among the shutoff subassembly 4, can cover at receiver 3 open top end, can provide the space to shoulder hole 42 and four first through-holes 44 again, then through first through-hole 44, can install at receiver 3 top through four set screws 45, thereby can play and install fixedly to closing cap 41, and then can make closing cap 41 carry out the shutoff to receiver 3 open end, then through shoulder hole 42, can make things convenient for two cables 2 to run through closing cap 41, can make things convenient for the staff to pour into sealant 43 at its inner chamber again, and then can pack shutoff to shoulder hole 42 and cable 2, prevent external water stain or filth to get into in the receiver 3, through draw-in groove 46 on closing cap 41, can install spacing subassembly 6, and then can improve the stability that spacing subassembly 6 used.
Through the locating strip 51 in the line ball subassembly 5, can fix in closing cap 41 top surface one side, can provide the space of seting up to crossing wire casing and internal thread hole 55 again, because the layering 52 bottom surface has offered wire casing and second through-hole 53 equally, through peg graft spacing screw 54 on layering 52 second through-hole 53 inner chamber, then rotate its bottom and install on internal thread hole 55, thereby can fix layering 52 at locating strip 51, and then can make locating strip 51 and layering 52 press from both sides tightly spacing in wire casing to cable 2, in order to prevent to cause the stability that shutoff subassembly 4 and cable 2 are connected when cable 2 receives the external force to drag.
Through fixture block 61 in spacing subassembly 6, can install at draw-in groove 46 inner chamber, can install two springs 62 to clamp plate 63 again, thereby can make clamp plate 63 elasticity support at battery body 1 top surface, and then can play spacing purpose to battery body 1, prevent that battery body 1 from rocking in receiver 3, because fixture block 61 bottom surface both sides just lie in two spring 62 inner chamber and be provided with movable post 64, and two movable post 64 bottom all peg graft sleeve pipe 65, two sleeve pipe 65 bottom link to each other with clamp plate 63 top surface simultaneously, so through movable post 64 and sleeve pipe 65, can play the purpose of leading clamp plate 63 from top to bottom, and then can prevent that spring 62 from warping distortion, the stability of clamp plate 63 support on battery body 1 has been guaranteed.
In conclusion, the device can prevent the lithium ion battery from being damaged by external water stains, so that the use safety and the service life of the lithium ion battery can be improved.
And all that is not described in detail in this specification is well known to those skilled in the art.
Claims (7)
1. The utility model provides a waterproof lithium ion battery, includes battery body (1), positive pole and negative pole on battery body (1) all are connected with cable (2), its characterized in that: further comprises:
a storage box (3), wherein the storage box (3) is arranged outside the battery main body (1), and the storage box (3) is used for storing the battery main body (1);
the plugging assembly (4) is arranged at the top opening end of the storage box (3), the two cables (2) penetrate through the middle part of the top surface of the plugging assembly (4), and the plugging assembly (4) is used for being matched with the storage box (3) to realize waterproof protection on the battery main body (1);
The wire pressing assembly (5) is arranged on one side of the top surface of the plugging assembly (4), and the wire pressing assembly (5) is used for limiting the wire (2); and
Spacing subassembly (6), spacing subassembly (6) are provided with two, two spacing subassembly (6) inlay respectively in shutoff subassembly (4) top surface both sides, and two spacing subassembly (6) bottom with battery body (1) top surface links to each other, spacing subassembly (6) are used for supporting to press spacing to battery body (1).
2. The waterproof lithium ion battery of claim 1, wherein: the plugging assembly (4) comprises a sealing cover (41) arranged at the top opening end of the storage box (3), a stepped hole (42) is formed in the middle of the top surface of the sealing cover (41), two cables (2) penetrate through the inner cavity of the stepped hole (42), and sealing glue (43) is filled in the inner cavity of the stepped hole (42);
First through holes (44) are formed in four corners of the top surface of the sealing cover (41), positioning screws (45) are inserted into the inner cavities of each first through hole (44), and the bottom ends of the positioning screws (45) are rotationally connected with the top surface of the storage box (3);
clamping grooves (46) for clamping the limiting component (6) are formed in two sides of the bottom surface of the sealing cover (41).
3. The waterproof lithium ion battery of claim 2, wherein: the wire pressing assembly (5) comprises a positioning strip (51) arranged on one side of the top surface of the sealing cover (41), a pressing strip (52) is arranged right above the positioning strip (51), second through holes (53) are formed in two sides of the top surface of the pressing strip (52), and limiting screws (54) are inserted into inner cavities of the two second through holes (53);
the two sides of the top surface of the positioning strip (51) are provided with internal threaded holes (55), and the inner cavities of the internal threaded holes (55) are rotationally connected with the bottom ends of the limit screws (54).
4. A waterproof lithium ion battery according to claim 3, wherein: the top surface of the positioning strip (51) and the bottom surface of the pressing strip (52) are respectively provided with a wire passing groove for clamping the cable (2).
5. The waterproof lithium ion battery of claim 4, wherein: the limiting assembly (6) comprises a clamping block (61) arranged in the inner cavity of the clamping groove (46) and a pressing plate (63) arranged on one side of the top surface of the battery main body (1);
Springs (62) are arranged on two sides of the top surface of the pressing plate (63), and the top ends of the two springs (62) are connected with two sides of the bottom surface of the clamping block (61).
6. The waterproof lithium ion battery of claim 5, wherein: the clamping block (61) is characterized in that movable columns (64) are arranged on two sides of the bottom surface of the clamping block (61) and located in the inner cavities of the two springs (62), sleeves (65) are inserted into the bottoms of the two movable columns (64), and the bottoms of the two sleeves (65) are connected with the top surface of the pressing plate (63).
7. The waterproof lithium ion battery of claim 1, wherein: the storage box further comprises a plurality of reinforcing rib rings (7), wherein the reinforcing rib rings (7) are arranged in a plurality, and the reinforcing rib rings (7) are respectively arranged on the outer wall surface of the storage box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420552195.XU CN222015539U (en) | 2024-03-21 | 2024-03-21 | A waterproof lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420552195.XU CN222015539U (en) | 2024-03-21 | 2024-03-21 | A waterproof lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222015539U true CN222015539U (en) | 2024-11-15 |
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ID=93425781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420552195.XU Active CN222015539U (en) | 2024-03-21 | 2024-03-21 | A waterproof lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222015539U (en) |
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2024
- 2024-03-21 CN CN202420552195.XU patent/CN222015539U/en active Active
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