CN219739187U - Battery top cover - Google Patents
Battery top cover Download PDFInfo
- Publication number
- CN219739187U CN219739187U CN202320961325.0U CN202320961325U CN219739187U CN 219739187 U CN219739187 U CN 219739187U CN 202320961325 U CN202320961325 U CN 202320961325U CN 219739187 U CN219739187 U CN 219739187U
- Authority
- CN
- China
- Prior art keywords
- pole
- flange
- flange portion
- top cover
- base 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.)
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- 239000000758 substrate Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 208000010392 Bone Fractures Diseases 0.000 abstract description 5
- 206010017076 Fracture Diseases 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a battery top cover, which comprises a cover body and a pole column arranged on the cover body; the pole comprises a first pole and a second pole which are connected with each other, the first pole is provided with a first basal body and a first flange part, and the second pole is provided with a second basal body and a second flange part; the first base body and the second base body are in fit connection, and the first flange portion is in fit connection with the second base body, or the first flange portion is in fit connection with the second flange portion. According to the utility model, the first flange part and the second base body/second flange part are in fit connection, so that the fit area between the first pole and the second pole is increased, the stability of connection of the first pole and the second pole is improved, the risk of fracture of the pole from the connection surface of the first pole and the second pole is reduced, and the failure risk of the battery is reduced.
Description
Technical Field
The utility model relates to the technical field of battery production and manufacturing, in particular to a battery top cover.
Background
The electrode post is an electrode conductor which is applied to the battery and is electrically connected with an external circuit, the electrode post is usually a composite electrode post and comprises a first electrode post and a second electrode post which are connected with each other, the first electrode post is connected with an external circuit, and the second electrode post is connected with an internal electric core of the battery, so that the battery can realize the charge and discharge functions.
The existing pole circumferential ring is provided with a sealing element. In the long-term use process of the battery, the acting force of the sealing element can generate continuous acting force on the connecting surface of the first pole and the second pole of the pole, and the pole is easy to break from the connecting surface of the first pole and the second pole under the continuous damage of the acting force, so that the battery is invalid.
Disclosure of Invention
In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a battery top cover, including a cover body and a post provided on the cover body; the pole comprises a first pole and a second pole which are connected with each other, the first pole is provided with a first basal body and a first flange part, and the second pole is provided with a second basal body and a second flange part; the first base body and the second base body are in fit connection, and the first flange portion is in fit connection with the second base body, or the first flange portion is in fit connection with the second flange portion.
According to the utility model, the first flange part and the second base body/second flange part are in fit connection, so that the fit area between the first pole and the second pole is increased, the stability of connection of the first pole and the second pole is improved, the risk of fracture of the pole from the connection surface of the first pole and the second pole is reduced, and the failure risk of the battery is reduced.
In some embodiments, the extending direction of the first flange portion is perpendicular to one end of the first substrate; the extending direction of the second flange part is vertically arranged at one end of the second basal body.
Preferably, the first pole and the second pole are both L-shaped structures, and the first base body is attached to the second base body, the first flange portion is attached to the second pole, the second flange portion is attached to the first pole, and it is easy to understand that two kinds of connection modes exist in this way: the first pole and the second pole are connected in a staggered and inverted mode to form a Z-shaped structure; the first pole and the second pole are connected in an overlapping way to form an L-shaped structure; it will be appreciated that the first pole and the second pole are arranged such that they have at least two connection faces.
In some embodiments, the first flange portion is snugly attached to an end of the second substrate remote from the second flange portion; the second flange part is in fit connection with one end of the first base body far away from the first flange part.
Specifically, when first flange portion laminating is connected in the one end of keeping away from second flange portion on the second base member, first utmost point post and second post dislocation inversion are connected, form Z type structure, set up like this that first utmost point post and second post have three junction surface, further increase the laminating area between first utmost point post and the second post, promote first utmost point post and second post joint strength, reduce battery failure risk.
In some embodiments, the second substrate is provided with a first groove corresponding to the first flange portion, and the first flange portion is clamped with and fitted to the first groove.
It is easy to understand that the first groove is formed in the second substrate, so that the first flange portion and the first groove are clamped, and therefore the first flange portion and the second pole are provided with at least two connecting surfaces, the attaching area between the first pole and the second pole is further increased, and the connecting strength of the first pole and the second pole is improved.
In some embodiments, the first substrate is provided with a second groove corresponding to the second flange portion, and the second flange portion is clamped with and fitted to the second groove.
Further, the second flange portion is clamped with the second groove and is in fit with the second groove, so that the second flange portion and the first pole are at least provided with two connecting surfaces, and the first pole and the second pole are provided with at least 6 connecting surfaces, and the fit area between the first pole and the second pole is further increased.
In some embodiments, the first substrate is provided with a plurality of third protrusions, the second substrate is provided with a plurality of third grooves, and the third protrusions and the third grooves are in one-to-one corresponding clamping connection and are in fit arrangement.
It should be noted that, setting up the cooperation of third arch and third recess, can increasing the laminating area of first base member and second base member, on the other hand can also increase the connection stability of first base member and second base member, under the joint cooperation of third arch and third recess, first base member and second base member combine compacter, and be difficult for producing relative displacement.
In some embodiments, the faying surfaces of the first pole and the second pole are friction welded.
In some embodiments, the first and second poles are extrusion connected.
The extrusion molding refers to a processing method of a part or a semi-finished product with a required section shape and size and certain mechanical property, wherein the material is heated and plasticized under the action of an extruder charging barrel and a screw rod, and is pushed forward by the screw rod while being forced to generate directional plastic deformation and be extruded from a die hole of an extrusion die. The extrusion molding is a molding processing method with high efficiency, continuity, low cost and wide adaptability, meets the industrial production requirement, and is suitable for industrial popularization and application.
In some embodiments, the first pole is used for electrically connecting the terminals, and the first pole is made of aluminum.
In some embodiments, the second post is used for electrically connecting to the battery core pack, and the second post is made of copper.
In summary, the battery top cover provided by the utility model has the following technical effects:
according to the utility model, the first flange part and the second base body/second flange part are in fit connection, so that the fit area between the first pole and the second pole is increased, the stability of connection of the first pole and the second pole is improved, the risk of fracture of the pole from the connection surface of the first pole and the second pole is reduced, and the failure risk of the battery is reduced.
Drawings
FIG. 1 is a schematic view of a pole according to the present utility model;
fig. 2 is a schematic perspective view of a battery cover according to the present utility model;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a schematic cross-sectional view along AA of fig. 3.
Wherein the reference numerals have the following meanings:
1. a battery top cover;
2. a pole; 21. a first pole; 211. a first substrate; 212. a first flange portion; 22. a second post; 221. a second substrate; 222. a second flange portion;
3. a cover body;
4. and a seal.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1, 2, 3 and 4, a battery top cover 1 includes a cover body 3 and a pole 2 provided on the cover body 3, wherein a sealing member 4 is sleeved on the periphery of the pole 2 to seal a contact gap between the pole 2 and the cover body 3; the pole 2 includes a first pole 21 and a second pole 22 connected to each other, the first pole 21 having a first base 211 and a first flange 212, the second pole 22 having a second base 221 and a second flange 222; the first base 211 and the second base 221 are bonded to each other, and the first flange 212 is bonded to the second base 221, or the first flange 212 is bonded to the second flange 222.
The existing pole comprises a first pole and a second pole connected with each other, and the pole circumference is provided with a sealing element in a ring. In the long-term use process of the battery, the acting force of the sealing element can generate continuous acting force on the connecting surface of the first pole and the second pole of the pole, and the pole is easy to break from the connecting surface of the first pole and the second pole under the continuous damage of the acting force, so that the battery is invalid.
According to the utility model, the first flange part 212 and the second base body 221/the second flange part 222 are bonded and connected, so that the bonding area between the first pole 21 and the second pole 22 is increased, the stability of the connection between the first pole 21 and the second pole 22 is improved, the risk of fracture of the pole 2 from the connection surface of the first pole 21 and the second pole 22 is reduced, and the risk of failure of the battery is reduced.
Referring to fig. 4, the extending direction of the first flange 212 is vertically disposed at one end of the first substrate 211; the second flange 222 extends in a direction perpendicular to one end of the second base 221.
As will be appreciated, the arrangement is such that the first pole 21 and the second pole 22 are both L-shaped structures, and the first base 211 is attached to the second base 221, the first flange 212 is attached to the second pole 22, and the second flange 222 is attached to the first pole 21, so that there are two attachment modes: 1. the first pole column 21 and the second pole column 22 are connected in a staggered and inverted mode to form a Z-shaped structure; 2. the first pole column 21 and the second pole column 22 are connected in an overlapping manner to form an L-shaped structure; it will be appreciated that the first pole 21 and the second pole 22 so disposed will have at least two connection faces.
Referring to fig. 4, the first flange 212 is attached to an end of the second substrate 221 away from the second flange 222; the second flange 222 is attached to the first base 211 at an end thereof remote from the first flange 212.
Preferably, when the first flange portion 212 is attached to the second base 221 at an end far away from the second flange portion 222, the first pole 21 and the second pole 22 are connected in a staggered and inverted manner, so as to form a Z-shaped structure, and thus the first pole 21 and the second pole 22 have three connecting surfaces, the attaching area between the first pole 21 and the second pole 22 is further increased, the connection strength of the first pole 21 and the second pole 22 is improved, and the risk of failure of the battery is reduced.
The second base 221 is provided with a first groove corresponding to the first flange 212, and the first flange 212 is engaged with the first groove and is adhered to the first groove.
It will be appreciated that the first groove is provided on the second substrate 221, so that the first flange portion 212 and the first groove are clamped, and thus, the first flange portion 212 and the second pole 22 have at least two connecting surfaces, so that the bonding area between the first pole 21 and the second pole 22 is further increased, and the connection strength of the first pole 21 and the second pole 22 is improved.
The first substrate 211 is provided with a second groove corresponding to the second flange portion 222, and the second flange portion 222 is clamped with the second groove and is attached to the second groove.
Further, the second flange portion 222 is clamped to the second groove and is adhered to the second groove, so that the second flange portion 222 and the first pole 21 have at least two connection surfaces, and the first pole 21 and the second pole 22 have at least 6 connection surfaces, so that the adhering area between the first pole 21 and the second pole 22 is further increased.
The first substrate 211 is provided with a plurality of third protrusions, the second substrate 221 is provided with a plurality of third grooves, and the third protrusions and the third grooves are in one-to-one corresponding clamping connection and are in fit arrangement.
It should be noted that, setting up the cooperation of third arch and third recess, can increase the laminating area of first base member 211 and second base member 221, on the other hand, can also increase the connection stability of first base member 211 and second base member 221, under the joint cooperation of third arch and third recess, first base member 211 and second base member 221 combine compacter, and be difficult for producing relative displacement.
The contact surfaces of the first pole piece 21 and the second pole piece 22 are friction welded.
Preferably, in the present embodiment, the connection manner of the first pole 21 and the second pole 22 is friction welding, and in other embodiments, the connection manner of the first pole 21 and the second pole 22 can have different settings according to different actual requirements.
The first pole 21 and the second pole 22 are connected by extrusion.
The extrusion molding refers to a processing method of a part or a semi-finished product with a required section shape and size and certain mechanical property, wherein the material is heated and plasticized under the action of an extruder charging barrel and a screw rod, and is pushed forward by the screw rod while being forced to generate directional plastic deformation and be extruded from a die hole of an extrusion die. The extrusion molding is a molding processing method with high efficiency, continuity, low cost and wide adaptability, meets the industrial production requirement, and is suitable for industrial popularization and application.
The first pole 21 is used for electrically connecting terminals, and the first pole 21 is made of aluminum.
The pole 2 is a member of the battery that communicates between the inside and the outside of the battery, and the first pole 21 is used for an electrical connection terminal, so that the cost and weight of the battery can be reduced when the first pole 21 is made of an aluminum material.
The second post 22 is used for electrically connecting to the battery core package, and the second post 22 is made of copper.
It should be noted that, the second post 22 is used for electrically connecting the battery core package, and the negative current collecting plate inside the battery core is made of copper foil material, so the second post 22 is required to be made of copper material to ensure the service performance of the battery.
According to the utility model, the first flange part 212 and the second base body 221/the second flange part 222 are bonded and connected, so that the bonding area between the first pole 21 and the second pole 22 is increased, the stability of the connection between the first pole 21 and the second pole 22 is improved, the risk of fracture of the pole 2 from the connection surface of the first pole 21 and the second pole 22 is reduced, and the risk of failure of the battery is reduced.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. The battery top cover is characterized by comprising a cover body (3) and a pole column (2) arranged on the cover body (3);
the pole (2) comprises a first pole (21) and a second pole (22) which are connected with each other, wherein the first pole (21) is provided with a first base body (211) and a first flange part (212), and the second pole (22) is provided with a second base body (221) and a second flange part (222);
the first base body (211) and the second base body (221) are in bonding connection, and the first flange part (212) is in bonding connection with the second base body (221), or the first flange part (212) is in bonding connection with the second flange part (222).
2. The battery top cover according to claim 1, wherein the extending direction of the first flange portion (212) is provided perpendicularly to one end of the first base body (211);
the extending direction of the second flange part (222) is perpendicular to one end of the second base body (221).
3. The battery top cover according to claim 2, wherein the first flange portion (212) is attached to the second base (221) at an end remote from the second flange portion (222);
the second flange portion (222) is attached to the first base (211) at an end remote from the first flange portion (212).
4. The battery top cover according to claim 1, wherein the second base (221) is provided with a first groove corresponding to the first flange (212), and the first flange (212) is clamped and fitted with the first groove.
5. The battery top cover according to claim 4, wherein the first base body (211) is provided with a second groove corresponding to the second flange portion (222), and the second flange portion (222) is clamped and fitted with the second groove.
6. The battery top cover according to any one of claims 1 to 4, wherein a plurality of third protrusions are arranged on the first substrate (211), a plurality of third grooves are arranged on the second substrate (221), and the third protrusions and the third grooves are in one-to-one corresponding clamping and fitting arrangement.
7. A battery top cover according to any of claims 1-5, characterized in that the abutting faces of the first pole (21) and the second pole (22) are friction welded.
8. A battery top cover according to any of claims 1-5, characterized in that the first pole (21) and the second pole (22) are extrusion-connected.
9. A battery top cover according to any one of claims 1-5, wherein the first pole (21) is used for an electrical connection terminal, and the first pole (21) is made of aluminum.
10. A battery top cover according to any one of claims 1-5, wherein the second post (22) is used for electrically connecting to a battery pack, and the second post (22) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320961325.0U CN219739187U (en) | 2023-04-25 | 2023-04-25 | Battery top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320961325.0U CN219739187U (en) | 2023-04-25 | 2023-04-25 | Battery top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739187U true CN219739187U (en) | 2023-09-22 |
Family
ID=88060014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320961325.0U Active CN219739187U (en) | 2023-04-25 | 2023-04-25 | Battery top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739187U (en) |
-
2023
- 2023-04-25 CN CN202320961325.0U patent/CN219739187U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |