CN117080635A - Shell assembly and battery - Google Patents
Shell assembly and battery Download PDFInfo
- Publication number
- CN117080635A CN117080635A CN202311331875.5A CN202311331875A CN117080635A CN 117080635 A CN117080635 A CN 117080635A CN 202311331875 A CN202311331875 A CN 202311331875A CN 117080635 A CN117080635 A CN 117080635A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- shell
- face
- cover
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000013011 mating Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 5
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- 238000007747 plating Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/107—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention relates to the technical field of batteries, and discloses a shell component and a battery, wherein the shell component comprises: the cover plate body or the shell body is provided with a first position surface and a second position surface; the first position surface is parallel to the second position surface and is arranged in a dislocation manner along a plane perpendicular to the cover plate body or the shell body; explosion-proof mark formed at the joint of the first position surface and the second position surface; and satisfies the following: d < H1, and/or D < H2. According to the shell component provided by the invention, the explosion-proof mark is formed at the junction, so that the consistency of the formed explosion-proof valve is higher, the situation that the nickel plating layer on the outer layer is dropped due to the flow and extrusion of materials after the V-shaped mark is formed by punching in the prior art is avoided, the corrosion risk is reduced, and the safety performance of the battery is improved. The first position surface and the second position surface formed by staggered layers have no resetting tendency after stamping, so that the consistency of products can be ensured, and the product precision is higher.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a shell assembly and a battery.
Background
The battery cover plate is often provided with an explosion-proof valve, in the prior art, some explosion-proof valves adopt a V-shaped notch form, and the explosion-proof valve in the notch form and the cover plate are usually integrally formed by stamping. However, when the V-shaped notch is punched, the nickel plating layer of the outer layer can be separated due to the flow and extrusion of materials, corrosion risks exist, the V-shaped notch has a reset tendency after punching, and the consistency of products is difficult to control.
Disclosure of Invention
In view of the above, the present invention provides a housing assembly and a battery to solve the problems of corrosion risk of V-shaped notch and difficult control of product consistency.
In a first aspect, the present invention provides a housing assembly comprising:
the cover plate body or the shell body is provided with a first position surface and a second position surface;
the first position surface is parallel to the second position surface and is arranged in a dislocation manner along a plane perpendicular to the cover plate body or the shell body;
explosion-proof mark formed at the joint of the first position surface and the second position surface;
and satisfies the following: d < H1, and/or D < H2, wherein D is the minimum cross-sectional dimension of the explosion-proof mark between the first position surface and the second position surface, H1 is the maximum cross-sectional dimension of the first position surface in the cross section vertical to the cover plate body or the shell body, and H2 is the maximum cross-sectional dimension of the second position surface in the cross section vertical to the cover plate body or the shell body.
The beneficial effects are that: according to the shell component provided by the invention, by adopting the staggered arrangement mode of the first position surface and the second position surface, explosion-proof marks are formed at the junction, so that the consistency of the formed explosion-proof valve is higher, the situation that the nickel plating layer on the outer layer is dropped due to the flow and extrusion of materials after the V-shaped marks are formed by punching in the prior art is avoided, the corrosion risk is reduced, and the safety performance of the battery is improved. And the first position surface and the second position surface formed by staggered layers have no resetting tendency after stamping, so that the consistency of products can be ensured, and the product precision is higher.
In an alternative embodiment, the first bit surface is integrally formed with the second bit surface.
The beneficial effects are that: by adopting the integrated molding, the molding process of the first position surface and the second position surface is simplified, and the machining error caused by the mutual connection or assembly of the first position surface and the second position surface is avoided.
In an alternative embodiment, the first face is integrally stamped and formed with the second face.
The beneficial effects are that: through adopting integrative stamping forming to in the shaping in first position face and second position face, can process by a monoblock panel, direct stamping obtains the split level, and then forms explosion-proof trace, makes the shaping process more simple and convenient. And the thickness of the explosion mark can be changed by reasonably adjusting the stamping size so as to set the explosion strength of the battery in thermal runaway according to the requirement.
In an alternative embodiment, the end face of the first position face facing the second position face forms a first stamping face, and the end face of the second position face facing the first stamping face forms a second stamping face;
an included angle m is formed between the first stamping surface and the upper surface of the second stamping surface, and m is more than or equal to 90 degrees;
an included angle n is formed between the second stamping surface and the lower surface of the first position surface, and n is more than or equal to 90 degrees.
The beneficial effects are that: through setting up and forming contained angle m and be greater than or equal to 90 between the upper surface of first stamping surface and second plane to set up and form contained angle n and be greater than or equal to 90 between the lower surface of second stamping surface and first plane, on the one hand can make the shaping of first plane and second plane easier, avoid the punching press process to cause to interfere, on the other hand can be when explosion-proof trace receives internal pressure, more smooth and easy burst open, first plane and second plane after avoiding the fracture take place to interfere, avoid hindering the normal opening of explosion-proof trace.
In an alternative embodiment, the housing assembly further comprises: the cover plate body is suitable for closing the opening and is in sealing connection with the shell;
the end face of the shell, facing the cover plate body, is provided with a shell matching surface, the cover plate body is provided with a cover plate matching surface corresponding to the shell matching surface, and the shell matching surface is in lap joint with the cover plate matching surface.
The beneficial effects are that: the shell matching surface is in lap joint with the cover plate matching surface, so that good contact can be formed after the cover plate body is covered at the opening of the shell, and the follow-up sealing connection of the cover plate body and the shell is facilitated. The cover plate body and the shell form a closed container, the pole group is arranged in the closed container, the pole group is suitable for storing and releasing electric quantity, and the cover plate body can lead out the current of the pole group to the outside.
In an alternative embodiment, a shell guide surface is obliquely arranged at the junction of the inner surface of the shell and the matching surface of the shell, and a cover plate guide surface is obliquely arranged between the bottom surface of the cover plate body and the matching surface of the cover plate;
the cover plate guide surface is matched with the inclination of the shell guide surface, and the shell guide surface is suitable for guiding the cover plate guide surface to move so as to guide the cover plate body to cover the opening of the shell.
The beneficial effects are that: according to the shell assembly, the cover plate guide surface and the shell guide surface which are matched in inclination are arranged, so that when the cover plate body is covered at the opening of the shell, the cover plate body can be more easily guided to a preset installation position by means of the matching of the shell guide surface and the cover plate guide surface, the double functions of guiding and positioning are achieved, the assembly difficulty is reduced, the accurate positioning of the matching of the cover plate body and the shell can be realized without external equipment, and the production efficiency and the product yield are improved.
In an alternative embodiment, the center axis of the cover guide surface coincides with the center axis of the housing guide surface.
The beneficial effects are that: through setting up the axis of apron guide surface and the axis of casing guide surface coincidence mutually to guarantee that casing guide surface and apron guide surface are after the assembly is accomplished, can make apron body and casing central symmetry, play the effect of accurate positioning.
In an alternative embodiment, the housing mating surface is laser welded to the cover mating surface.
The beneficial effects are that: the shell matching surface and the cover plate matching surface form zero clearance fit after being contacted, so that laser welding connection is convenient, and the cover plate body and the shell form sealing.
In an alternative embodiment, the cover plate body is further provided with a liquid injection hole.
In a second aspect, the invention also provides a battery comprising a housing assembly having a pole set disposed therein.
Because the battery includes the case assembly, it has the same effect as the case assembly, and a detailed description thereof will be omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a battery of the present invention;
FIG. 2 is a schematic cross-sectional view of a cell of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a schematic view showing the separation of the cover plate and the housing according to the present invention;
FIG. 6 is a cross-sectional view of a cover plate of the present invention;
fig. 7 is a schematic perspective view of a cover plate of the present invention.
Reference numerals illustrate:
1. a cover plate body; 2. a housing; 3. a pole group;
11. a first bit plane; 12. a second bit plane; 13. explosion-proof mark; 14. a cover plate guide surface; 15. a cover plate mating surface; 16. a liquid injection hole;
21. a housing guide surface; 22. a housing mating surface;
111. first punching surface, 121, second punching surface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Embodiments of the present invention are described below with reference to fig. 1 to 7.
According to an embodiment of the present invention, in one aspect, there is provided a housing assembly including:
the cover plate comprises a cover plate body 1 or a shell body, wherein a first position surface 11 and a second position surface 12 are formed on the cover plate body 1 or the shell body;
the first position surface 11 is parallel to the second position surface 12, and the first position surface 11 and the second position surface 12 are arranged in a dislocation manner along a plane perpendicular to the cover plate body 1 or the shell body;
an explosion-proof mark 13 formed at the joint of the first position surface 11 and the second position surface 12;
and satisfies the following: d < H1, and/or D < H2, where D is the smallest cross-sectional dimension of the anti-explosion mark 13 between the first and second surfaces 11, 12, H1 is the largest cross-sectional dimension of the first surface 11 at a cross-section perpendicular to the cover body 1 or the housing body, and H2 is the largest cross-sectional dimension of the second surface 12 at a cross-section perpendicular to the cover body 1 or the housing body.
The first position surface 11 and the second position surface 12 are arranged in a dislocation mode along the plane perpendicular to the cover plate body 1, so that explosion-proof marks 13 are conveniently formed at the junction of the first position surface 11 and the second position surface 12, the thickness of the explosion-proof marks 13 is thinner, the strength is weaker, and when thermal expansion occurs in the battery, the position of the explosion-proof marks 13 can be broken by internal air pressure, and exhaust is convenient.
According to the shell component provided by the embodiment of the invention, the first position surface 11 and the second position surface 12 are arranged in a staggered manner, so that the explosion-proof mark 13 is formed at the junction, the consistency of the formed explosion-proof valve is higher, the situation that the nickel plating layer on the outer layer is dropped due to the flow and extrusion of materials after the V-shaped mark is formed by punching in the prior art is avoided, the corrosion risk is reduced, and the safety performance of the battery is improved. And the first position surface 11 and the second position surface 12 formed by staggered layers have no resetting tendency after stamping, so that the consistency of products can be ensured, and the product precision is higher.
Alternatively, the maximum cross-sectional dimension H1 of the first land 11 in a cross-section perpendicular to the cover body 1 is equal to the maximum cross-sectional dimension H2 of the second land 12 in a cross-section perpendicular to the cover body 1.
In some embodiments, the first bit face 11 is integrally formed with the second bit face 12.
By adopting the integral molding, the molding process of the first position surface 11 and the second position surface 12 is simplified, and the machining error caused by the mutual connection or assembly of the two is avoided.
In some embodiments, the first bit face 11 is integrally stamped with the second bit face 12.
Through adopting integrative stamping forming to in the shaping in first face 11 and second face 12, can process by a monoblock panel, direct stamping obtains the split level, and then forms explosion-proof trace 13, makes the shaping process more simple and convenient. And the thickness of the explosion mark 13 can be changed by reasonably adjusting the stamping size so as to set the explosion force of the battery in thermal runaway according to the requirement.
In some embodiments, as shown in connection with fig. 6, the end surface of the first bit surface 11 facing the second bit surface 12 forms a first stamped surface 111, and the end surface of the second bit surface 12 facing the first bit surface 11 forms a second stamped surface 121, in a direction parallel to the cover plate body 1;
an included angle m is formed between the first stamping surface 111 and the upper surface of the second position surface 12, and m is more than or equal to 90 degrees;
an included angle n is formed between the second stamping surface 121 and the lower surface of the first position surface 11, and n is more than or equal to 90 degrees.
The first press surface 111 and the second press surface 121 may be formed by shifting the sheet material from each other at the press portion during the press process.
Through setting up and forming contained angle m and be greater than or equal to 90 between the upper surface of first punching press face 111 and second plane 12 to set up and form contained angle n and be greater than or equal to 90 between the lower surface of second punching press face 121 and first plane 11, on the one hand can make the shaping of first plane 11 and second plane 12 easier, avoid the punching press process to cause the interference, on the other hand can be when explosion-proof mark 13 receives internal pressure, more smooth and easy burst, first plane 11 and second plane 12 after avoiding the fracture take place to interfere, avoid hindering the normal opening of explosion-proof mark 13.
In some embodiments, as shown in connection with fig. 1, 2, 5, the housing assembly further comprises: the shell 2, one side of the shell 2 forms an opening, and the cover plate body 1 is suitable for closing the opening and is connected with the shell 2 in a sealing way;
the end face of the shell 2 facing the cover plate body 1 is provided with a shell matching surface 22, the cover plate body 1 is provided with a cover plate matching surface 15 corresponding to the shell matching surface 22, and the shell matching surface 22 is in lap joint with the cover plate matching surface 15.
The shell matching surface 22 is in lap joint with the cover plate matching surface 15, so that after the cover plate body 1 is covered at the opening of the shell 2, good contact can be formed, and the subsequent sealing connection of the cover plate body 1 and the shell 2 is facilitated. The cover plate body 1 and the shell 2 form a closed container, the pole group 3 is arranged in the closed container, the pole group 3 is suitable for storing and releasing electric quantity, and the cover plate body 1 can lead out the current of the pole group 3 to the outside.
Optionally, the housing mating surface 22 and the cover mating surface 15 form a zero clearance fit after contact, thereby facilitating welding at the contact location for sealing the cover body 1 to the housing 2.
In some embodiments, as shown in fig. 4 and 5, a housing guiding surface 21 is obliquely arranged at the juncture of the inner surface of the housing 2 and the housing matching surface 22, and a cover guiding surface 14 is obliquely arranged between the bottom surface of the cover body 1 and the cover matching surface 15;
the cover guiding surface 14 is in slope matching with the housing guiding surface 21, and the housing guiding surface 21 is suitable for guiding the cover guiding surface 14 to move so as to guide the cover body 1 to cover the opening of the housing 2.
According to the shell assembly provided by the embodiment of the invention, the cover plate guide surface 14 and the shell guide surface 21 which are matched in inclination are arranged, so that when the cover plate body 1 is covered at the opening of the shell 2, the cover plate body 1 can be guided to a preset installation position more easily by means of the matching of the shell guide surface 21 and the cover plate guide surface 14, the dual functions of guiding and positioning are achieved, the assembly difficulty is reduced, the matching of the cover plate body 1 and the shell 2 can be precisely positioned without external equipment, and the production efficiency and the product yield are improved.
In some embodiments, the central axis of the cover guide surface 14 coincides with the central axis of the housing guide surface 21.
Through setting up the axis of apron guide surface 14 and the axis coincidence of casing guide surface 21 to guarantee that casing guide surface 21 and apron guide surface 14 are after the assembly is accomplished, can make apron body 1 and casing 2 central symmetry, play the effect of accurate positioning.
In some embodiments, the housing mating surface 22 is laser welded to the cover mating surface 15.
By making the housing mating surface 22 and the cover mating surface 15 form zero clearance fit after contact, laser welding connection is facilitated, and the cover body 1 and the housing 2 form sealing.
In some embodiments, as shown in fig. 7, the cover body 1 is further provided with a filling hole 16. Thereby facilitating the injection of the electrolyte.
According to an embodiment of the present invention, in another aspect, there is also provided a battery including: a housing assembly as described above is provided with a pole set 3 therein.
According to the battery provided by the embodiment of the invention, the first position surface 11 and the second position surface 12 are arranged in a staggered manner so as to form the explosion-proof mark 13 at the junction, so that the consistency of the formed explosion-proof valve is higher, the situation that the nickel plating layer on the outer layer is dropped due to the flow and extrusion of materials after the V-shaped mark is formed by punching in the prior art is avoided, the corrosion risk is reduced, and the safety performance of the battery is improved. And the first position surface 11 and the second position surface 12 formed by staggered layers have no resetting tendency after stamping, so that the consistency of products can be ensured, and the product precision is higher.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Although the embodiments of the present invention have been described with reference to the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the claims.
Claims (10)
1. A housing assembly, comprising:
the cover plate comprises a cover plate body or a shell body, wherein a first position surface and a second position surface are formed on the cover plate body or the shell body;
the first position surface is parallel to the second position surface and is arranged in a dislocation manner along a plane perpendicular to the cover plate body or the shell body;
explosion-proof mark formed at the joint of the first position surface and the second position surface;
and satisfies the following: d < H1, and/or D < H2, wherein D is the minimum cross-sectional dimension of the explosion-proof mark between the first position surface and the second position surface, H1 is the maximum cross-sectional dimension of the first position surface on the cross section perpendicular to the cover plate body or the shell body, and H2 is the maximum cross-sectional dimension of the second position surface on the cross section perpendicular to the cover plate body or the shell body.
2. The housing assembly of claim 1, wherein the first bit face is integrally formed with the second bit face.
3. The housing assembly of claim 2, wherein the first face is integrally stamped and formed with the second face.
4. A housing assembly according to claim 3, wherein the end face of the first face facing the second face forms a first stamped face and the end face of the second face facing the first face forms a second stamped face in a direction parallel to the cover body;
an included angle m is formed between the first stamping surface and the upper surface of the second position surface, and m is more than or equal to 90 degrees;
an included angle n is formed between the second stamping surface and the lower surface of the first position surface, and n is more than or equal to 90 degrees.
5. The housing assembly of any one of claims 1 to 4, further comprising: the cover plate body is suitable for closing the opening and is in sealing connection with the shell;
the end face of the shell, which faces the cover plate body, is provided with a shell matching surface, the cover plate body is provided with a cover plate matching surface corresponding to the shell matching surface, and the shell matching surface is in lap joint with the cover plate matching surface.
6. The housing assembly of claim 5, wherein a housing guide surface is obliquely disposed at a junction of the inner surface of the housing and the housing mating surface, and a cover guide surface is obliquely disposed between the bottom surface of the cover body and the cover mating surface;
the cover plate guide surface is matched with the casing guide surface in inclination, and the casing guide surface is suitable for guiding the cover plate guide surface to move so as to guide the cover plate body to cover the opening of the casing.
7. The housing assembly of claim 6, wherein the central axis of the cover guide surface coincides with the central axis of the housing guide surface.
8. The housing assembly of claim 5, wherein the housing mating surface is laser welded to the cover mating surface.
9. The housing assembly of any one of claims 1 to 4, wherein the cover body is further provided with a liquid injection hole.
10. A battery comprising a housing assembly according to any one of claims 1 to 9, wherein the housing assembly has a pole set disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331875.5A CN117080635A (en) | 2023-10-16 | 2023-10-16 | Shell assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331875.5A CN117080635A (en) | 2023-10-16 | 2023-10-16 | Shell assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117080635A true CN117080635A (en) | 2023-11-17 |
Family
ID=88717552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311331875.5A Pending CN117080635A (en) | 2023-10-16 | 2023-10-16 | Shell assembly and battery |
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| Country | Link |
|---|---|
| CN (1) | CN117080635A (en) |
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| CN218569013U (en) * | 2022-10-21 | 2023-03-03 | 湖北亿纬动力有限公司 | Battery case and single battery |
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| CN116845441A (en) * | 2023-07-03 | 2023-10-03 | 蜂巢能源科技股份有限公司 | Battery and battery pack |
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| US20160361782A1 (en) * | 2014-03-27 | 2016-12-15 | Primearth Ev Energy Co., Ltd. | Laser welding device, laser welding method, and battery casing |
| US20180287102A1 (en) * | 2015-06-25 | 2018-10-04 | Schuler Pressen Gmbh | Battery Cell Housing and Method for Producing Same |
| CN213401344U (en) * | 2020-08-17 | 2021-06-08 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and power consumption device |
| CN215731935U (en) * | 2021-05-26 | 2022-02-01 | 欣旺达电动汽车电池有限公司 | Battery case and battery |
| CN215418352U (en) * | 2021-06-10 | 2022-01-04 | 东莞锂微电子科技有限公司 | Welding structure of steel shell button cell and button cell |
| CN216720085U (en) * | 2021-11-26 | 2022-06-10 | 联动天翼新能源有限公司 | Battery case and battery |
| CN217405635U (en) * | 2022-04-18 | 2022-09-09 | 湖北亿纬动力有限公司 | Battery shell, single battery and power battery of integrated explosion-proof valve |
| CN218569013U (en) * | 2022-10-21 | 2023-03-03 | 湖北亿纬动力有限公司 | Battery case and single battery |
| CN116454525A (en) * | 2023-04-27 | 2023-07-18 | 湖北亿纬动力有限公司 | Battery cover plate, battery shell and battery |
| CN116845441A (en) * | 2023-07-03 | 2023-10-03 | 蜂巢能源科技股份有限公司 | Battery and battery pack |
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