CN216133919U - Battery top cap, battery - Google Patents
Battery top cap, battery Download PDFInfo
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- CN216133919U CN216133919U CN202120378313.6U CN202120378313U CN216133919U CN 216133919 U CN216133919 U CN 216133919U CN 202120378313 U CN202120378313 U CN 202120378313U CN 216133919 U CN216133919 U CN 216133919U
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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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application provides a battery top cap, battery relates to battery technical field. The battery top cover comprises a first pole, a second pole, a cover plate, a lower plastic plate and a plastic sleeve which can be welded by ultrasonic. The cover plate is provided with a first mounting hole for mounting the first pole and a second mounting hole for mounting the second pole. The lower plastic plate is provided with a third mounting hole corresponding to the first mounting hole and a fourth mounting hole corresponding to the second mounting hole, and the lower plastic plate and the cover plate are arranged in a stacked mode. The first pole and/or the second pole are/is partially or completely embedded in the plastic sleeve, the top surface and the bottom surface are exposed, and the first pole and/or the second pole are/is installed in the first installation hole and/or the second installation hole through the plastic sleeve. The utility model provides a utmost point post in battery top cap passes through the plastic sheath and connects in the apron. Firstly, the pole and the plastic sleeve are subjected to injection molding, then the obtained plastic sleeve-pole structure is installed in the installation hole of the cover plate, and then fusion welding is carried out by ultrasonic waves. The connecting structure of the pole and the cover plate has high assembly efficiency and low cost.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery top cover and a battery.
Background
A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li+Li being inserted and extracted back and forth between two electrodes during charging+The lithium ion battery is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.
Lithium ion batteries have high energy, high capacity, and high power capabilities, and are widely used in digital product batteries, electric vehicles, and new energy vehicles.
The existing pole-plastic-top cover plate of the lithium ion battery is usually connected in a sealing injection molding mode by adopting a nanometer injection molding (NMT) process, and the structure is low in assembly efficiency and high in cost.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a battery top cap, battery, it can improve utmost point post and the technical problem that the lamina tecti packaging efficiency is low.
In a first aspect, an embodiment of the present application provides a battery top cap, which includes a first terminal, a second terminal, a cover plate, a lower plastic plate, and a plastic sleeve that can be welded by ultrasonic waves.
The cover plate is provided with a first mounting hole for mounting the first pole and a second mounting hole for mounting the second pole.
The lower plastic plate is provided with a third mounting hole corresponding to the first mounting hole and a fourth mounting hole corresponding to the second mounting hole, and the lower plastic plate and the cover plate are arranged in a stacked mode.
The first pole and/or the second pole are/is partially or completely embedded in the plastic sleeve, the top surface and the bottom surface are exposed, and the first pole and/or the second pole are/is installed in the first installation hole and/or the second installation hole through the plastic sleeve.
In the implementation process, the pole in the battery top cover is connected to the cover plate through the plastic sleeve. The post and the plastic sleeve are embedded in the plastic sleeve through injection molding, the top surface and the bottom surface are exposed, the flexible connection is convenient to connect to the bottom surface of the post, and a device using the battery is connected to the top surface of the post. The plastic sleeve-pole post structure after injection molding is arranged in the mounting hole of the cover plate, and then fusion welding (ultrasonic wave willow connection) is carried out by ultrasonic waves, so that the weight of the whole cover plate is reduced. The connecting structure of the pole and the cover plate has high assembly efficiency and low cost.
In a possible embodiment, the middle part of the first pole and/or the second pole is provided with a fixing piece, the plastic sleeve is provided with a first through hole, the middle part of the first through hole is provided with a fixing groove, the first pole and/or the second pole is embedded in the first through hole of the plastic sleeve, and the fixing piece is embedded in the fixing groove.
In the implementation process, during injection molding, the fixing piece is clamped into the fixing groove, so that the first pole column and/or the second pole column cannot slide up and down in the first through hole, and form a stable plastic sleeve-pole column structure with the plastic sleeve.
In a possible embodiment, the plastic sleeve comprises a main body and a plurality of positioning columns arranged at the bottom of the main body, the cover plate is provided with a plurality of positioning holes, and the positioning columns and the positioning holes can be embedded and matched so that the plastic sleeve can be stably connected to the cover plate.
In the implementation process, the positioning columns can be inserted into the positioning holes, and the positioning columns are welded in the positioning holes through ultrasonic waves in a fusion welding mode, so that the injection-molded plastic sleeve-pole column structure is installed in the mounting holes of the cover plate and is stably connected with the cover plate.
In a possible implementation scheme, the length of the positioning column is greater than the thickness of the cover plate, the lower plastic plate is provided with a plurality of second through holes corresponding to the positioning holes, the inner diameter of each second through hole is greater than that of each positioning hole, and the positioning column is embedded in the positioning holes and does not contact the lower plastic plate.
In the above-mentioned realization in-process, when the length of reference column was greater than the apron thickness, the lower extreme of reference column can stretch into down in the second through-hole of moulding the board, and the internal diameter of second through-hole is greater than the reference column and the reference column does not contact and moulds the board down, makes the second through-hole can not prescribe a limit to the position of reference column, prevents the position deviation of reference column for the main part skew mounting hole of plastic sheath.
In a possible embodiment, the battery top cover further comprises a plurality of first sealing rings, and each positioning column is sleeved with at least one first sealing ring.
In the implementation process, the first sealing ring can improve the sealing property between the positioning column and the positioning hole, so that the air tightness of the whole cover plate is improved.
In a possible embodiment, the bottom end of the plastic sleeve is embedded in the first mounting hole.
In the above-mentioned realization process, the plastic cover is inlayed through the bottom and is located first mounting hole, welds the bottom of main part in first mounting hole with the ultrasonic wave.
In one possible embodiment, the battery top cover further comprises a second sealing ring, and the second sealing ring is arranged between the plastic sleeve and the cover plate.
In the implementation process, the second sealing ring can improve the sealing property between the pole and the cover plate, so that the air tightness of the whole cover plate is improved.
In a possible embodiment, the battery top cover further comprises an explosion-proof valve, and the explosion-proof valve is arranged on the cover plate.
In one possible embodiment, the cover plate has a first pour hole, the lower plastic plate has a second pour hole, and the first pour hole and the second pour hole are positioned correspondingly.
In a second aspect, an embodiment of the present application provides a battery, which includes a battery core, a casing, and the above-mentioned battery top cover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a battery top cover according to an embodiment of the present application;
fig. 2 is a top view of a battery top cover according to an embodiment of the present disclosure from top to bottom;
fig. 3 is a top view of a battery top cover according to an embodiment of the present disclosure from bottom to top;
fig. 4 is an exploded view of a top cap of a battery according to an embodiment of the present application;
fig. 5 is a partial cross-sectional view of a battery top cover according to an embodiment of the present application;
fig. 6 is a schematic structural view of a plastic bushing-post structure according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural view of a plastic bushing-post structure and a cover plate after ultrasonic welding according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a battery according to an embodiment of the present application.
Icon: 10-a battery top cover; 100-a cover plate; 101-a first mounting hole; 102-a second mounting hole; 103-positioning holes; 104-a third via; 105-a first pour hole; 200-lower plastic plate; 201-a third mounting hole; 202-fourth mounting hole; 203-a second via; 204-air holes; 205-a second liquid injection hole; 300-a first pole; 310-a fixture; 400-a second pole; 500-plastic sleeve; 501-a first through hole; 510-a body; 520-an extension; 530-positioning columns; 600-a first seal ring; 700-a second sealing ring; 800-explosion-proof valve; 810-protective sheet; 900-sealing nails; 910-a third seal ring; 20-a battery; 30-outer shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 5, an embodiment of the present invention provides a battery top cover 10, which includes a cover plate 100, a lower plastic plate 200, a first electrode post 300, and a second electrode post 400.
Wherein, the cover plate 100 and the lower plastic plate 200 are arranged in a stacked manner. One of the first and second poles 300 and 400 is a positive pole, and the other is a negative pole.
The cover plate 100 has a first mounting hole 101 for mounting the first pole post 300 and a second mounting hole 102 for mounting the second pole post 400, and the lower molding plate 200 has a third mounting hole 201 corresponding to the first mounting hole 101 and a fourth mounting hole 202 corresponding to the second mounting hole 102. When the cover plate 100 and the lower molding plate 200 are stacked, the first mounting hole 101 is aligned with the third mounting hole 201, and the second mounting hole 102 is aligned with the fourth mounting hole 202.
In the embodiment shown in fig. 1 to 4, the cover plate 100 and the lower molding plate 200 are both rectangular, the first mounting hole 101 and the second mounting hole 102 are disposed at two ends of the cover plate 100, the third mounting hole 201 and the fourth mounting hole 202 are disposed at two ends of the lower molding plate 200, and the cover plate 100 and the lower molding plate 200 have the same size and shape. In other embodiments of the present application, the cover plate 100 and the lower molding plate 200 may also be polygonal, circular, oval or other irregular shapes, and the shapes and sizes thereof and the positions of the first mounting hole 101, the second mounting hole 102, the third mounting hole 201 and the fourth mounting hole 202 are configured according to the required structure of the battery 20.
The first pole post 300 and/or the second pole post 400 are mounted to the first mounting hole 101 and/or the second mounting hole 102 by a plastic sleeve 500 that can be ultrasonically welded.
In the embodiment shown in fig. 6 to 7, the first pole 300 is mounted to the first mounting hole 101 through the plastic sleeve 500 that can be ultrasonically welded, and the second pole 400 is mounted to the second mounting hole 102 through the plastic sleeve 500 that can be ultrasonically welded, i.e., the positive and negative poles of the battery 20 are ultrasonically welded to the cover plate 100 through the plastic sleeve 500. In other embodiments of the present application, the first pole 300 or the second pole 400 may be mounted in the first mounting hole 101 or the second mounting hole 102 through a plastic sleeve 500 that can be ultrasonically welded, and the other pole is connected to the cover plate 100 through a conventional technique, that is, the positive pole or the negative pole is ultrasonically welded to the cover plate 100 through the plastic sleeve 500, and the other pole is connected to the cover plate 100 through a process such as NMT.
The plastic sheath 500 of the present application comprises polypropylene (PP), Polycarbonate (PC), a blend of PP and ABS or a blend of PC and ABS.
The middle of the plastic sleeve 500 has a first through hole 501, and the first pole 300 and/or the second pole 400 is partially embedded in the first through hole 501.
Before forming the battery top cap 10, the terminal post and the plastic sleeve are first injection-molded to partially embed the terminal post in the first through hole 501 of the plastic sleeve and expose the top surface and the bottom surface.
Referring to fig. 4 to 5, the fixing member 310 is disposed in the middle of the first pole 300 and/or the second pole 400, and the fixing member 310 is disposed in the middle of the first through hole 501, so that the fixing member 310 is inserted into the fixing groove during injection molding, and the first pole 300 and/or the second pole 400 does not slide up and down in the first through hole 501, but forms a stable plastic sleeve-pole structure with the plastic sleeve.
In the embodiment shown in fig. 6, the plastic sheath 500 includes a main body 510, an extension 520 and a plurality of positioning pillars 530, the main body 510 extends from top to bottom, the outer diameter of the extension 520 is smaller than the outer diameter of the main body 510, the extension 520 is disposed at the middle of the bottom of the main body 510, the plurality of positioning pillars 530 are disposed at the bottom of the main body 510 around the extension 520, and the first through hole 501 penetrates through the main body 510 and the extension 520. Meanwhile, the cover plate 100 is provided with a plurality of positioning holes 103 corresponding to the positioning posts 530. When the pole is installed, the extension part 520 is firstly inserted into the first installation hole 101 and/or the second installation hole 102, the positioning pillars 530 are correspondingly inserted into the positioning holes 103 one by one, and then fusion welding is performed by ultrasonic waves, the extension part 520 is connected to the inner wall of the cover plate 100 located in the first installation hole 101 and/or the second installation hole 102, and the positioning pillars 530 are connected to the inner wall of the cover plate 100 located in the positioning holes 103. That is, the plastic sleeve 500 is stably connected to the cover plate 100 through the connection between the extension 520 and the inner wall of the first mounting hole 101 and/or the second mounting hole 102 and the connection between the positioning post 530 and the inner wall of the positioning hole 103.
It should be noted that the length of the extension 520 may be greater than the thickness of the cover plate 100, so that the extension 520 protrudes from the lower surface of the cover plate 100 and extends into the second through hole 203 of the lower molding plate 200. Or the length of the extension part 520 may be less than or equal to the thickness of the cover plate 100, and the extension part 520 is entirely disposed in the first through hole 501.
Similarly, the length of the positioning pillars 530 may be greater than the thickness of the cover plate 100, so that the positioning pillars 530 protrude from the bottom surface of the cover plate 100, the lower molding plate 200 has a plurality of second through holes 203, the second through holes 203 correspond to the positioning holes 103 or the positioning pillars 530, and the positioning pillars 530 extend into the second through holes 203 of the lower molding plate 200. Moreover, in order to prevent the second through hole 203 from defining the position of the positioning post 530, which causes the main body 510 of the plastic sleeve 500 to deviate from the first mounting hole 101 and/or the second mounting hole 102, the inner diameter of the second through hole 203 is larger than that of the positioning hole 103, and after the positioning post 530 extends to the second through hole 203, the positioning post 530 does not contact the lower plastic plate 200.
Besides ultrasonic welding, after the plastic sleeve-pole structure is obtained through injection molding, the plastic sleeve-pole structure is bonded to the corresponding position of the cover plate 100 through an adhesive, so that the pole and the cover plate 100 are well attached and sealed, and the structural strength of the whole battery top cover 10 is improved.
In other embodiments of the present application, the plastic sheath 500 includes a main body 510 and a plurality of positioning pillars 530 without the extension portion 520, the main body 510 extends from top to bottom, the first through hole 501 penetrates through the main body 510, and the plurality of positioning pillars 530 are disposed at the bottom of the main body 510 around the first through hole 501. Meanwhile, the cover plate 100 is provided with a plurality of positioning holes 103 corresponding to the positioning posts 530. When the terminal posts are installed, the positioning posts 530 are inserted into the positioning holes 103 in a one-to-one correspondence, and then welded by ultrasonic welding, and the positioning posts 530 are connected to the cover plate 100 and located on the inner walls of the positioning holes 103. That is, the plastic sleeve 500 is stably connected to the cover plate 100 through the connection between the positioning posts 530 and the inner walls of the positioning holes 103.
Or, the plastic sleeve 500 includes a main body 510 and an extension 520, but there is no positioning post 530, the main body 510 is arranged to extend from top to bottom, the outer diameter of the extension 520 is smaller than the outer diameter of the main body 510, the extension 520 is disposed at the middle of the bottom of the main body 510, and the first through hole 501 penetrates through the main body 510 and the extension 520. Meanwhile, the cover plate 100 does not have the positioning hole 103. When the pole is installed, the extension part 520 is firstly inserted into the first installation hole 101 and/or the second installation hole 102, and then fusion welding is performed by using ultrasonic waves, and the extension part 520 is connected to the inner wall of the cover plate 100 positioned in the first installation hole 101 and/or the second installation hole 102. That is, the plastic sheath 500 is stably coupled to the cap plate 100 by the coupling of the extension 520 and the inner wall of the first mounting hole 101 and/or the second mounting hole 102.
Referring to fig. 3 to 4, the battery top cover 10 further includes a plurality of first sealing rings 600, and each positioning pillar 530 is sleeved with at least one first sealing ring 600.
After the plastic sleeve-pole structure is obtained by injection molding, a first sealing ring 600 is sleeved on each positioning column 530, then the positioning columns 530 are inserted into the positioning holes 103 in a one-to-one correspondence manner, and finally ultrasonic welding is performed.
The first sealing ring 600 can fill a gap between the positioning column 530 and the positioning hole 103, so as to improve the sealing property between the positioning column 530 and the positioning hole 103, and further improve the air tightness of the whole cover plate 100.
Referring to fig. 3 to 4, the battery top cover 10 further includes a second sealing ring 700, and the second sealing ring 700 is disposed between the plastic sleeve 500 and the cover plate 100.
After the plastic sleeve-pole structure is obtained by injection molding, one or more second sealing rings 700 are sleeved on the extension part 520, then the extension part 520 is inserted into the first mounting hole 101 and/or the second mounting hole 102, and finally ultrasonic welding is performed.
The second sealing ring 700 may fill a gap between the extension part 520 and the first mounting hole 101 and/or the second mounting hole 102, thereby improving sealability between the pole post and the cap plate 100 and, in turn, airtightness of the entire cap plate 100.
It should be noted that, if the plastic sleeve 500 has no extension portion 520 and only has the main body 510, after the plastic sleeve-pole structure is obtained by injection molding, the second sealing ring 700 is sleeved on the pole, and then the pole is inserted into the first mounting hole 101 and/or the second mounting hole 102, and finally ultrasonic welding is performed.
Referring to fig. 1 to 4, the battery top cover 10 further includes an explosion-proof valve 800 and a protection sheet 810, the cover plate 100 has a third through hole 104, and the lower plastic plate 200 has an air hole 204 corresponding to the third through hole 104. When the cover plate 100 and the lower molding plate 200 are stacked, the third through hole 104 is aligned with the air hole 204, the explosion-proof valve 800 is disposed on the cover plate 100, and the protection sheet 810 covers the explosion-proof valve 800.
Referring to fig. 1 to 4, the battery top cover 10 further includes a sealing nail 900 and a third sealing ring 910, the cover plate 100 has a first liquid injection hole 105, and the lower plastic plate 200 has a second liquid injection hole 205 corresponding to the first liquid injection hole 105. After the cover plate 100 and the lower plastic plate 200 are stacked, the first injection hole 105 and the second injection hole 205 are aligned, the third sealing ring 910 is sleeved on the sealing nail 900, and the sealing nail 900 is sequentially inserted into the first injection hole 105 and the second injection hole 205 from top to bottom.
Referring to fig. 8, the embodiment of the present invention further provides a battery 20, which includes a battery cell (not shown), a casing 30, and the battery top cover 10.
Wherein, shell 30 has the cavity, and electric core sets up in the cavity, and battery top cap 10 installs in shell 30's opening part, and the anodal flexible coupling of electric core passes third through-hole 104 and connects in the bottom of anodal utmost point post, and the negative pole flexible coupling of electric core passes the fourth through-hole and connects in the bottom of negative utmost point post.
To sum up, according to the battery top cap and the battery of the embodiment of the present application, the terminal post and the plastic sleeve are first embedded in the plastic sleeve by injection molding, and the top surface and the bottom surface are exposed, the plastic sleeve-terminal post structure after injection molding is installed in the installation hole of the cover plate 100, and then fusion welding (ultrasonic wave fusion welding) is performed by using ultrasonic waves. According to the application, the pole is connected to the cover plate 100 through the plastic sleeve-pole structure and the ultrasonic welding, laser welding, metal willow connection and the like are omitted, structural deformation caused by stress transformation is reduced, the assembling efficiency can be improved, and the cost is reduced. Meanwhile, the rubber sleeve can replace a metal rivet structure, so that the weight of the whole battery top cover 10 or the battery 20 is reduced. The positive electrode soft connection of the battery cell of the battery 20 passes through the third through hole 104 to be connected to the bottom surface of the positive electrode pole, the negative electrode soft connection of the battery cell passes through the fourth through hole to be connected to the bottom surface of the negative electrode pole, and the device using the battery 20 is connected to the top surface of the positive electrode pole and the top surface of the negative electrode pole.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A battery top cap, comprising:
a first pole and a second pole;
the cover plate is provided with a first mounting hole for mounting the first pole and a second mounting hole for mounting the second pole;
the lower plastic plate is provided with a third mounting hole corresponding to the first mounting hole and a fourth mounting hole corresponding to the second mounting hole, and the lower plastic plate and the cover plate are arranged in a stacked mode;
the first pole post and/or the second pole post are/is partially or completely embedded in the plastic sleeve and exposed out of the top surface and the bottom surface, and the first pole post and/or the second pole post are/is mounted in the first mounting hole and/or the second mounting hole through the plastic sleeve.
2. The battery top cap according to claim 1, wherein a fixing member is disposed in the middle of the first electrode post and/or the second electrode post, the plastic sleeve has a first through hole, a fixing groove is disposed in the middle of the first through hole, the first electrode post and/or the second electrode post is embedded in the first through hole of the plastic sleeve, and the fixing member is embedded in the fixing groove.
3. The battery top cap of claim 1, wherein the plastic sleeve comprises a main body and a plurality of positioning posts disposed at the bottom of the main body, the cover plate is provided with a plurality of positioning holes, and the positioning posts and the positioning holes can be engaged to stably connect the plastic sleeve to the cover plate.
4. The battery top cap of claim 3, wherein the length of the positioning posts is greater than the thickness of the cap plate, the lower plastic plate has a plurality of second through holes corresponding to the positioning holes, the inner diameter of the second through holes is greater than the positioning holes, and the positioning posts are embedded in the positioning holes without contacting the lower plastic plate.
5. The battery top cap of claim 3, further comprising a plurality of first sealing rings, wherein each positioning post is sleeved with at least one first sealing ring.
6. The battery top cover according to any one of claims 1 to 5, wherein the bottom end of the plastic sleeve is embedded in the first mounting hole.
7. The battery top cap of any one of claims 1-5, further comprising a second sealing ring disposed between the plastic sleeve and the cover plate.
8. The battery top cover according to any one of claims 1 to 5, characterized in that the battery top cover further comprises an explosion-proof valve, and the explosion-proof valve is arranged on the cover plate.
9. The battery top cover according to any one of claims 1 to 5, wherein the cover plate has a first liquid injection hole, the lower plastic plate has a second liquid injection hole, and the first liquid injection hole and the second liquid injection hole correspond in position.
10. A battery comprising a core, a housing and the battery cap of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120378313.6U CN216133919U (en) | 2021-02-18 | 2021-02-18 | Battery top cap, battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120378313.6U CN216133919U (en) | 2021-02-18 | 2021-02-18 | Battery top cap, battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133919U true CN216133919U (en) | 2022-03-25 |
Family
ID=80764845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120378313.6U Active CN216133919U (en) | 2021-02-18 | 2021-02-18 | Battery top cap, battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133919U (en) |
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2021
- 2021-02-18 CN CN202120378313.6U patent/CN216133919U/en active Active
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Address after: 361100 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Province Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |