CN219553753U - Cylindrical battery, battery pack and electric equipment - Google Patents
Cylindrical battery, battery pack and electric equipment Download PDFInfo
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- CN219553753U CN219553753U CN202223522125.XU CN202223522125U CN219553753U CN 219553753 U CN219553753 U CN 219553753U CN 202223522125 U CN202223522125 U CN 202223522125U CN 219553753 U CN219553753 U CN 219553753U
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- cylindrical battery
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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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Abstract
The utility model relates to the field of batteries, and provides a cylindrical battery, a battery pack and electric equipment, wherein the electric equipment comprises the battery pack, the battery pack comprises the cylindrical battery, the cylindrical battery comprises a shell, a battery core, a cap and an adapter, one end of the cylindrical battery along the axial direction of the shell is provided with an opening, the battery core is accommodated in the shell, one end of the battery core, which is close to the opening, comprises a first tab, the cap is arranged at the opening and is electrically connected with the shell, the cap is provided with a first matching part, the adapter is provided with a base part and at least two connecting parts, the connecting parts are protruded outwards relative to the base part along the direction, which is close to the first matching part, the base part is electrically connected with the first tab, and the connecting parts are electrically connected with the first matching part. The indirect electric connection of the shell and the adapter is realized through the cap, the reliability of the electric connection of the shell and the adapter is improved, the reliability of the electric connection of the shell and the battery cell is further improved, and the overcurrent capacity between the shell and the battery cell is ensured.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a cylindrical battery.
Background
At present, a large cylindrical battery adopts a full lug rubbing mode, a current collecting disc and a lug are electrically connected through welding, the current collecting disc and a shell are electrically connected through welding, so that electric connection of a battery cell and the shell is realized, the shell is deformed and abutted against the electric cell through rolling grooves on the shell, the electric cell is prevented from shaking relative to the shell, the welding area of the current collecting disc and the shell is small, the material of the shell is pulled when the shell is deformed due to rolling grooves on the shell, the stress is easily caused at the welding position of the current collecting disc and the shell, the welding strength is insufficient, the overcurrent capacity is weak, and the battery cell is easy to fall off after long-term use or during strong vibration and shaking, so that the reliability of integral electric connection of the cylindrical battery is poor, and the overcurrent capacity is weak.
Disclosure of Invention
The utility model aims to overcome the defects of poor reliability of internal electrical connection and weak overcurrent capacity of a cylindrical battery in the prior art, and provides the cylindrical battery, a battery pack and electric equipment.
The utility model solves the technical problems by the following technical scheme:
a cylindrical battery, comprising:
a housing having an opening at one end in an axial direction of the housing;
the battery cell is accommodated in the shell, and one end of the battery cell, which is close to the opening, comprises a first tab;
the cover cap is arranged at the opening and is electrically connected with the shell, and the cover cap is provided with a first matching part;
the switching piece is arranged in the shell, the switching piece is provided with a base part and at least two connecting parts, the connecting parts are outwards protruded relative to the base part along the direction close to the first matching parts, the base part is electrically connected with the first tab, and the connecting parts are electrically connected with the first matching parts.
In this technical scheme, realize the indirect electric connection of casing and adaptor through the block, because of the block is more reliable with the casing connection than the direct and casing connection of adaptor to the reliability of casing and adaptor electric connection has been improved, and then the reliability of casing and electric core electric connection has been improved, the overcurrent capacity between assurance casing and the electric core. The base part and the at least two connecting parts of the adapter increase the electric contact area of the electric connection part in a multipoint contact mode, so that the electric connection between the base part and the first tab and the electric adapter between the connecting part and the first matching part are reliable, and the reliability and the overcurrent capacity of the electric connection are ensured.
Preferably, at least one of the first fitting portion, the connecting portion, and the base portion is planar.
In the technical scheme, at least one of the first matching part, the connecting part and the base part is in a plane shape, so that the electric contact area of electric connection can be increased, and the reliability and the overcurrent capacity of the electric connection are improved.
Preferably, the first matching portion abuts against the connecting portion.
In this technical scheme, first cooperation portion and connecting portion butt promptly both contact and compressed tightly, further improve reliability and the overcurrent capacity that first cooperation portion and connecting portion electricity are connected, and then improve reliability and the overcurrent capacity that first utmost point ear and lid electricity are connected.
Preferably, the adaptor further has a bending portion connecting the base portion and the connecting portion, and the adaptor is elastic at the bending portion and is in a compressed state.
In the technical scheme, after the first matching part is abutted with the connecting part, the adapter is in a pressed state, the connecting part is enabled to always have a movement trend away from the base part by the elastic bending part, so that the connecting part and the base part are always kept in a pressed state, the reliability and the overcurrent capacity of the electric connection of the first matching part and the connecting part are further improved, and the reliability and the overcurrent capacity of the electric connection of the first tab and the cap are further improved.
Preferably, the bending part is of a sheet metal structure, and the thickness of the bending part is 0.2-0.5 mm.
In the technical scheme, the bending part adopts a metal sheet structure, so that the base part, the connecting part and the bending part of the adapter are formed integrally, and the electric connection is reliable and the overcurrent capacity is good.
Preferably, the number of the bending parts corresponds to the number of the connecting parts one by one;
and/or the base, the bending part and the connecting part are integrally formed.
In the technical scheme, the number of the bending parts and the number of the connecting parts are in one-to-one correspondence, so that the bending parts are convenient to deform, and the connecting parts are tightly abutted to the first matching parts. The base part, the connecting part and the bending part of the adapter are integrally formed, and the electric connection is reliable and the overcurrent capacity is good.
Preferably, the first matching part of the cap and the shell are fixedly connected and electrically connected in a welding mode; and/or, the base part and the first tab are electrically connected through welding, and the connecting part and the first matching part are electrically connected through welding.
And/or, the base part and the first tab are electrically connected through welding, and the connecting part and the first matching part are electrically connected through welding.
Preferably, the cap further has a second mating portion, the first mating portion and the second mating portion are disposed along an axial direction of the cylindrical battery at intervals, a groove is formed between the first mating portion and the second mating portion, and at least a portion of the connecting portion is located in the groove.
In this technical scheme, connecting portion is located between the recess of first cooperation portion and second cooperation portion for connecting portion and block form the lock joint structure, can avoid connecting portion to drop because of rocking with the connection of block, guarantee the reliability that connecting portion and block are connected.
Preferably, the adaptor further has a bending portion connecting the base portion and the connecting portion, the adaptor has elasticity at the bending portion and is in a compressed state, and in a radial direction of the cylindrical battery, in an initial state of the bending portion, an inner diameter of a surrounding area of each connecting portion is larger than an outer diameter of the second mating portion.
In this technical scheme, initial state, the internal diameter of each connecting portion surrounding area is greater than the external diameter of second cooperation portion, is convenient for when the assembly, places connecting portion between first cooperation portion and the second cooperation portion, then through the deformation of bending portion, makes connecting portion lie in the recess of first cooperation portion and second cooperation portion and forms buckling structure, adopts the cylinder battery that this technical scheme provided, and connecting portion and block's assembly operation are simple and convenient.
Preferably, along the axial direction of the cylindrical battery, the first mating portion, the connecting portion, the second mating portion, and the base portion are sequentially disposed, and a gap is formed between the second mating portion and the base portion.
In this technical scheme, along the axial direction of cylinder battery, second cooperation portion is located between basal portion and the connecting portion, has the clearance between second cooperation portion and the basal portion, when all can reduce or avoid connecting portion and the welding of first cooperation portion, heat transfer to first utmost point ear and the electric core that first utmost point ear is connected. And a gap is reserved between the second matching part and the base part, after the cap is installed in place, a deformation space is reserved for the bending part, so that the impact of the cap is prevented from directly acting on the base part, and the impact of the first tab transmitted to the battery cell and the battery cell is further reduced.
Preferably, the middle part of the first matching part is provided with a concave part, and one end of the concave part far away from the first matching part is connected with the second matching part.
In this technical scheme, the concave part makes and forms the recess between first cooperation portion and the second cooperation portion, and the concave part can also play the reinforcement effect to the structure of block.
Preferably, the first matching part and the second matching part are integrally formed;
or, the second matching part is welded to the concave part of the first matching part.
A battery pack comprising a cylindrical battery as claimed in any one of the above claims.
An electric device comprises the battery pack.
The utility model has the positive progress effects that:
the shell and the adapter are indirectly electrically connected through the cap, and the electrical connection between the cap and the shell is more reliable than the connection between the adapter and the shell, so that the reliability of the electrical connection between the shell and the adapter is improved, the reliability of the electrical connection between the shell and the battery cell is further improved, and the overcurrent capacity between the shell and the battery cell is ensured. The base part and the at least two connecting parts of the adapter increase the electric contact area of the electric connection part in a multipoint contact mode, so that the electric connection between the base part and the first tab and the electric adapter between the connecting part and the first matching part are reliable, and the reliability and the overcurrent capacity of the electric connection are ensured.
Drawings
FIG. 1 is a schematic view of a cylindrical battery in a process of compressing a transfer member according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic view of a cylindrical battery after compression of a transfer member according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken at B-B in FIG. 3;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;
FIG. 6 is an enlarged view of FIG. 4 at D;
FIG. 7 is a schematic diagram of a battery cell and an adapter according to an embodiment of the utility model;
FIG. 8 is a schematic view illustrating a structure of an adapter according to an embodiment of the utility model;
FIG. 9 is a schematic view illustrating a structure of an adaptor according to an embodiment of the utility model;
FIG. 10 is a schematic view of a cap according to an embodiment of the present utility model;
fig. 11 is a cross-sectional view taken at E-E of fig. 10.
Reference numerals illustrate:
cylindrical battery 100
Battery cell 1
Adapter 2, base 21, connecting portion 22, and bending portion 23
Cap 3, first fitting portion 31, recess 311, second fitting portion 32, groove 33
Housing 4
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
The powered device includes a battery pack that includes a cylindrical battery 100. Powered devices include, but are not limited to: notebook computers, pen-input computers, mobile computers, electronic book players, portable telephones, portable fax machines, portable copiers, portable printers, headsets, video recorders, liquid crystal televisions, hand-held cleaners, portable CD-players, mini-compact discs, transceivers, electronic notebooks, calculators, memory cards, portable audio recorders, radios, stand-by power supplies, motors, automobiles, motorcycles, mopeds, bicycles, lighting fixtures, toys, game machines, watches, electric tools, flashlights, cameras, household large-sized storage batteries, energy storage or sodium ion capacitors, and the like.
Fig. 1 to 11 are schematic structural views of a cylindrical battery 100 according to an embodiment of the present utility model.
As shown in fig. 1 and 2, the cylindrical battery 100 includes a battery cell 1, an adapter 2, a cap 3, and a housing 4, the housing 4 has an opening at one end along an axial direction of the housing 4, the battery cell 1, the adapter 2, and the cap 3 are all disposed in the housing 4 and are sequentially disposed along the axial direction of the cylindrical battery 100, and the cap 3 is located at the opening of the housing 4. Wherein, a first tab is arranged on one side of the battery cell 1, which is close to the opening of the shell 4; as shown in fig. 9, the adapter 2 has a base 21, a plurality of connection portions 22, and a bent portion 23, the bent portion 23 connecting the base 21 and the connection portions 22; as shown in fig. 10 and 11, the cap 3 has a first fitting portion 31.
In order to facilitate the display of the relative positional relationship of the adaptor 2, the cap 3 and the housing 4, the structure shown in fig. 4 and 6 is that the first mating portion 31 and the connecting portion 22 are not connected, the first mating portion 31 and the housing 4 are not connected, the base 21 is actually electrically connected to the first tab on the battery cell 1 by welding, the connecting portion 22 protrudes outward relative to the base 21 in a direction approaching to the first mating portion 31, and the connecting portion 22 and the first mating portion 31 are also electrically connected by welding, and the first mating portion 31 and the housing 4 are also fixedly connected and electrically connected by welding. The indirect electric connection of the shell 4 and the adapter 2 is realized through the cap 3, and the electric connection of the cap 3 and the shell 4 is more reliable than the direct electric connection of the adapter and the shell, so that the reliability of the electric connection of the shell 4 and the adapter 2 is improved, the reliability of the electric connection of the shell 4 and the battery cell 1 is further improved, and the overcurrent capacity between the shell 4 and the battery cell 1 is ensured. The base 21 and the plurality of connecting parts 22 of the adaptor 2 increase the electric contact area of the electric connection part in a multipoint contact mode, so that the electric connection between the base 21 and the first tab and the electric adaptor 2 between the connecting parts 22 and the first matching parts 31 are reliable, and the reliability and the overcurrent capacity of the electric connection are ensured.
Preferably, as shown in fig. 6, in the present embodiment, the base 21 is electrically connected to the first tab, the connection portion 22, the first mating portion 31, and the housing 4 on the cell 1 by welding. Specifically, the first fitting portion 31 in the present embodiment is welded to the side portion of the housing 4. In other embodiments, the casing 4 may be turned over and pressed on the first matching portion 31 and then welded with the first matching portion 31, so as to further improve the reliability of connection between the casing 4 and the first matching portion 31, thereby further improving the reliability and overcurrent capability of electrical connection between the battery cell and the casing. In other embodiments, the base 21 and the first tab, the connection portion 22 and the first mating portion 31 on the battery core 1 may be electrically connected by other manners, such as clamping and pressing, and the first mating portion 31 and the housing 4 may be fixedly connected and electrically connected by interference fit.
Preferably, as shown in fig. 6, the base 21, the connecting portion 22 and the first mating portion 31 are all planar, and the planar structure can increase the electrical contact area of the electrical connection, thereby improving the reliability and the overcurrent capability of the electrical connection.
Preferably, in the present embodiment, the first mating portion 31 and the connecting portion 22 are abutted, and contact and are pressed, so that the reliability and the overcurrent capability of the electrical connection between the first mating portion 31 and the connecting portion 22 are further improved, and the reliability and the overcurrent capability of the electrical connection between the first tab and the cap 3 are further improved.
Specifically, as shown in fig. 6, the bending portion 23 of the adapter 2 is a metal sheet, has a thickness of 0.2-0.5 mm, has elasticity, and can deform to enable the base 21 and the connecting portion 22 to move relatively close to or relatively far away from each other. In the initial state, the bending part 23 of the connecting part 22 is not deformed, and the cap 3 is positioned outside the shell 4 and sleeved on the adapter 2; pressing the cap 3 toward the case 4, the bent portion 23 is deformed so that maintenance between the base portion 21 and the connecting portion 22 is reduced, as shown in fig. 1 and 2; continuing to press the cap 3 towards the housing 4 until the cap 3 is positioned in the housing 4 and reaches a preset mounting position, wherein the positions of the cap 3 relative to the housing 4 and the adapter 2 after the cap 3 is mounted in place are shown in fig. 3-6; the cap 3 is abutted on the adaptor 2 after being mounted in place, specifically, the first matching portion 31 and the connecting portion 22 are abutted, so that the adaptor 2 is in a pressed state, and the bending portion 23 deforms to reduce the gap between the base 21 and the connecting portion 22. After the first matching portion 31 is abutted with the connecting portion 22, the adaptor 2 is in a pressed state, the connecting portion 22 always has a movement trend away from the base portion 21 due to the elastic bending portion 23, so that the connecting portion 22 and the base portion 21 always keep in a pressed state, the reliability and the overcurrent capacity of the electric connection of the first matching portion 31 and the connecting portion 22 are further improved, and the reliability and the overcurrent capacity of the electric connection of the first tab and the cap 3 are further improved.
Preferably, as shown in fig. 9, in the present embodiment, the base 21, the connecting portion 22, and the bending portion 23 of the adaptor 2 are integrally formed, so that the electrical connection is reliable and the overcurrent capability is good; the bending part 23 of the adapter 2 adopts a metal sheet structure, so that the base part 21, the connecting part 22 and the bending part 23 of the adapter 2 are formed integrally. In other embodiments, the bending portion 23 may be an elastic conductive structure such as a metal spring.
Preferably, as shown in fig. 8 and 9, the number of the bending portions 23 and the number of the connecting portions 22 are in one-to-one correspondence, so that the bending portions 23 are deformed, and the connecting portions 22 are abutted against the first mating portions 31. Preferably, the bending portion 23 and the connecting portion 22 are uniformly arranged at intervals relative to the base 21, the stress is balanced, and the electric connection between the connecting portion 22 and the first mating portion 31 is facilitated to be reliable, and the overcurrent of each connecting portion 22 is balanced.
Preferably, as shown in fig. 10 and 11, the cap 3 further has a second mating portion 32, the middle part of the first mating portion 31 has a concave portion 311, the first mating portion 31 and the second mating portion 32 are sequentially arranged along the axial direction of the cylindrical battery 100, one end, far away from the first mating portion 31, of the concave portion 311 is connected with the second mating portion 32, so that a groove 33 is formed between the first mating portion 31 and the second mating portion 32, as shown in fig. 6, the connecting portion 22 is located between the grooves 33 of the first mating portion 31 and the second mating portion 32, so that the connecting portion 22 and the cap 3 form a fastening structure, connection falling of the connecting portion 22 due to shaking and the cap 3 can be avoided, and connection reliability of the connecting portion 22 and the cap 3 is ensured.
The assembly steps of the cap 3 are as follows:
s1, when the bending part 23 is not pressed and the adapter 2 is in an initial state, the inner diameter of the surrounding area of each connecting part 22 is larger than the outer diameter of the second matching part 32, and the cap 3 is sleeved on the adapter 2, and at the moment, the connecting parts 22 do not extend into the grooves 33 between the first matching parts 31 and the second matching parts;
s2, pressing the cap 3 towards the shell 4, deforming the bending part 23, so that the gap between the connecting part 22 and the base part 21 is reduced, and the connecting part 22 slowly stretches into the groove 33 between the first matching part 31 and the second matching part, as shown in FIG. 2;
and S3, continuously pressing the cap 3 towards the shell 4 until the cap 3 reaches a preset installation position, wherein the cap 3 is completely positioned in the shell 4, and the connecting part 22 is abutted with the first matching part 31, as shown in fig. 4 and 6.
In this embodiment, in step S1, the second fitting portion 32 has an inner diameter smaller than that of the surrounding area of the connecting portion 22, and the cap 3 is fitted over the connecting portion 22. In step S2, the bent portion 23 is deformed, the inner diameter of the surrounding area of the connecting portion 22 becomes smaller, and when the inner diameter is smaller than that of the second fitting portion 32, the connecting portion 22 extends into the groove 33, as shown in fig. 2. In the initial state, the inner diameter of the second fitting portion 32 is smaller than the inner diameter of the surrounding area of the connecting portion 22, so that the connecting portion 22 and the cap 3 can be conveniently mounted to form a fastening structure. In other embodiments, the connecting portion 22 may be fitted into the groove 33 when the inner diameter of the second fitting portion 32 is larger than the inner diameter of the surrounding area of the connecting portion 22 by setting the width of the groove 33 by the inner diameter of the surrounding area of the connecting portion 22 in the initial state.
Preferably, in the present embodiment, as shown in fig. 10 and 11, the recess 311 forms a groove 33 between the first mating portion 31 and the second mating portion 32, and the recess 311 may also strengthen the structure of the cap 3. In other embodiments, the first engaging portion 31 may not have the recess 311, and the first engaging portion 31 and the second engaging portion 32 may be connected by other structures.
In this embodiment, as shown in fig. 6, on the one hand, the second mating portion 32 and the first mating portion 31 form a groove 33 to form a fastening structure with the connecting portion 22, so as to ensure the reliability of the connection between the connecting portion 22 and the cap 3; on the other hand, as shown in fig. 4 and 6, in the present embodiment, the second mating portion 32 is located between the base 21 and the connecting portion 22 along the axial direction of the cylindrical battery 100, so that heat transfer to the first tab and the cell 1 connected to the first tab during welding of the connecting portion 22 and the first mating portion 31 can be reduced or avoided, and the cell 1 is protected. In other embodiments, the second engaging portion 32 and the recess portion 311 may not be provided, and the connecting portion 22 and the cap 3 may not form a fastening structure.
In this embodiment, as shown in fig. 6, a gap is formed between the second mating portion 32 and the base 21, and after the cap 3 is installed in place, a deformation space is left for the bending portion 23, so that the impact applied to the cap 3 is prevented from directly acting on the base 21, and the impact transferred to the battery cell 1 and the first tab on the battery cell 1 is further reduced. In other embodiments, the second mating portion 32 and the base portion 21 may also be in abutment.
Preferably, as shown in fig. 10, in the present embodiment, the second fitting portion 32 is welded to the recessed portion 311 of the first fitting portion 31; in other embodiments, the first mating portion 31 and the second mating portion 32 may be integrally formed, so that the electrical connection inside the cap 3 is reliable and the overcurrent capability is good.
For how to use the cylindrical battery 100 for the battery pack and how to use the battery pack for the electric device, reference may be made to the prior art, and the description thereof will not be repeated here.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (15)
1. A cylindrical battery, comprising:
a housing having an opening at one end in an axial direction of the housing;
the battery cell is accommodated in the shell, and one end of the battery cell, which is close to the opening, comprises a first tab;
the cover cap is arranged at the opening and is electrically connected with the shell, and the cover cap is provided with a first matching part;
the switching piece is arranged in the shell, the switching piece is provided with a base part and at least two connecting parts, the connecting parts are outwards protruded relative to the base part along the direction close to the first matching parts, the base part is electrically connected with the first tab, and the connecting parts are electrically connected with the first matching parts.
2. The cylindrical battery of claim 1, wherein at least one of the first mating portion, the connecting portion, and the base portion is planar.
3. The cylindrical battery according to claim 1, wherein the first fitting portion abuts against the connecting portion.
4. The cylindrical battery of claim 3, wherein the adapter further has a bent portion connecting the base portion and the connecting portion, the adapter being elastic and in compression at the bent portion.
5. The cylindrical battery according to claim 4, wherein the bent portion has a sheet-like metal structure, and the thickness of the bent portion is 0.2 to 0.5mm.
6. The cylindrical battery according to claim 4, wherein the number of the bent portions and the number of the connection portions are in one-to-one correspondence;
and/or the base, the bending part and the connecting part are integrally formed.
7. The cylindrical battery according to claim 1, wherein the first fitting portion of the cap and the case are fixedly connected and electrically connected by welding;
and/or, the base part and the first tab are electrically connected through welding, and the connecting part and the first matching part are electrically connected through welding.
8. The cylindrical battery of any one of claims 1-7, wherein the cap further has a second mating portion, the first mating portion and the second mating portion are spaced apart along the axial direction of the cylindrical battery, and a groove is provided between the first mating portion and the second mating portion, and at least a portion of the connecting portion is located within the groove.
9. The cylindrical battery according to claim 8, wherein the first fitting portion, the connecting portion, the second fitting portion, and the base portion are provided in this order along an axial direction of the cylindrical battery with a gap therebetween.
10. The cylindrical battery of claim 8, wherein a central portion of the first mating portion has a recessed portion, and an end of the recessed portion remote from the first mating portion is connected to the second mating portion.
11. The cylindrical battery of claim 10, wherein the first mating portion and the second mating portion are integrally formed;
or, the second matching part is welded to the concave part of the first matching part.
12. The cylindrical battery of any one of claims 1-3, 7, wherein the cap further has a second mating portion, the first and second mating portions are disposed at intervals along an axial direction of the cylindrical battery, and a groove is provided between the first and second mating portions, at least a portion of the connecting portion is located in the groove, the adapter further has a bent portion connecting the base portion and the connecting portion, the adapter is elastic at the bent portion and in a compressed state, and an inner diameter of a surrounding area of each connecting portion is larger than an outer diameter of the second mating portion in an initial state of the bent portion in a radial direction of the cylindrical battery.
13. The cylindrical battery according to any one of claims 4 to 6, wherein the cap further has a second fitting portion, the first fitting portion and the second fitting portion are disposed at intervals in an axial direction of the cylindrical battery, and a groove is provided between the first fitting portion and the second fitting portion, at least part of the connecting portions are located in the groove, and an inner diameter of a surrounding area of each connecting portion is larger than an outer diameter of the second fitting portion in an initial state of the bending portion in a radial direction of the cylindrical battery.
14. A battery pack comprising the cylindrical battery according to any one of claims 1 to 13.
15. A powered device comprising the battery pack of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223522125.XU CN219553753U (en) | 2022-12-27 | 2022-12-27 | Cylindrical battery, battery pack and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223522125.XU CN219553753U (en) | 2022-12-27 | 2022-12-27 | Cylindrical battery, battery pack and electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219553753U true CN219553753U (en) | 2023-08-18 |
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ID=87708292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223522125.XU Active CN219553753U (en) | 2022-12-27 | 2022-12-27 | Cylindrical battery, battery pack and electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219553753U (en) |
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2022
- 2022-12-27 CN CN202223522125.XU patent/CN219553753U/en active Active
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