CN219917507U

CN219917507U - Connection piece, battery and consumer

Info

Publication number: CN219917507U
Application number: CN202321413793.0U
Authority: CN
Inventors: 张佩; 武冬冬; 金敏
Original assignee: Jiangsu Zenergy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-10-27
Anticipated expiration: 2033-06-05

Abstract

The utility model provides a connecting sheet, a battery and electric equipment, and relates to the technical field of batteries. The connecting piece comprises a flow guiding part and a connecting main body. The flow guiding part is used for being electrically connected with the pole. The connecting main body comprises a first main body and a second main body which are connected, the first main body is connected with the flow guiding part, an included angle is formed between the first main body and the flow guiding part, and the second main body is used for being electrically connected with the electrode lug; the thickness of the first body is greater than the thickness of the second body. The battery provided by the utility model adopts the connecting sheet. The electric equipment provided by the utility model adopts the battery. The connecting piece, the battery and the electric equipment can solve the technical problem that in the prior art, the connecting piece for connecting the lug and the pole is easy to deform.

Description

Connection piece, battery and consumer

Technical Field

The utility model relates to the technical field of batteries, in particular to a connecting sheet, a battery and electric equipment.

Background

The battery outputs current through the connection piece, and current connection piece structure is mostly L type folded plate, and its L type folded plate's one end and utmost point post welded fastening, the utmost point ear welded connection that the core was drawn forth with the book to the other end. The existing positive electrode connecting sheet is made of aluminum, soft and easy to deform, and can be slightly deformed in the welding process, the deformation of the positive electrode connecting sheet can be aggravated by external forces such as extrusion, vibration and the like in the later use process, and the deformed connecting sheet can be in contact with a shell or inserted into a winding core to cause internal short circuit, so that safety risks are brought.

Disclosure of Invention

The utility model aims to provide a connecting sheet, a battery and electric equipment, which can solve the technical problem that a connecting sheet for connecting a tab and a pole in the prior art is easy to deform.

Embodiments of the utility model may be implemented as follows:

an embodiment of the present utility model provides a connection piece for connecting a tab of a winding core and a tab of a tab, the connection piece including:

the flow guiding part is used for being electrically connected with the pole; the method comprises the steps of,

the connecting body comprises a first body and a second body which are connected, the first body is connected with the flow guiding part, an included angle is formed between the first body and the flow guiding part, and the second body is used for being electrically connected with the electrode lug; the thickness of the first body is greater than the thickness of the second body.

Optionally, the first body and the second body are integrally formed.

Optionally, the thickness of the first body is at least 1.5 times the thickness of the second body.

Optionally, the length of the first body is equal to or less than the length of the second body.

Optionally, the first main body includes a main body portion and at least one reinforcing portion, one end of the main body portion is connected to the flow guiding portion, the other end is connected to the second main body, and the reinforcing portion is disposed on a side of the main body portion away from the winding core, so that a thickness of the first main body is greater than a thickness of the second main body.

Optionally, the guide part and the connecting body are both made of aluminum.

Optionally, the first body has a first side and a second side disposed opposite each other, and the second body has a third side and a fourth side disposed opposite each other; the first side surface and the third side surface are coplanar, and the second side surface and the fourth side surface are stepped; the first side surface is one side of the first main body close to the winding core; the third side surface is one side of the second main body close to the winding core.

A battery comprises the connecting sheet. The connecting piece includes:

Optionally, the tab is welded to a side of the second body away from the winding core.

An electric device comprises the battery.

The connecting sheet, the battery and the electric equipment provided by the utility model have the beneficial effects compared with the prior art that:

the thickness of the first main body in the connecting main body is increased, so that the overall strength of the connecting main body is increased; simultaneously, because the first main part sets up the corner at the connection piece, can improve the intensity of corner, can prevent to connect the main part deformation, and then can improve the security performance of adopting the battery of this connection piece. Based on the structure, the connecting piece, the battery adopting the connecting piece and the electric equipment adopting the battery can all achieve the technical problem that the connecting piece for connecting the lug and the pole in the prior art is easy to deform.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a battery provided in an embodiment of the present utility model;

fig. 2 is a schematic structural view of a connecting piece according to an embodiment of the present utility model.

Icon: 10-battery; 100-connecting sheets; 110-a diversion part; 120-connecting the body; 121-a first body; 1211-a first side; 1212-a second side; 122-a second body; 1221-a third side; 1222-fourth side; 200-winding the core; 300-pole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a battery according to an embodiment of the utility model. In the embodiment of the utility model, a battery 10 is provided, the battery 10 can be used for storing electric energy, and in the case that the battery 10 is applied to electric equipment, the battery 10 can provide the electric energy to the electric equipment. It should be noted that, the battery 10 provided in the present embodiment can improve the technical problem that the connection piece 100 connecting the tab and the post 300 is easy to deform in the prior art.

In this embodiment, please refer to fig. 1 and fig. 2 in combination, fig. 2 shows a schematic structural diagram of a connecting piece provided in an embodiment of the present utility model. The battery 10 includes a winding core 200, a connection sheet 100, a case, and a top cover; the top cover is provided with a pole 300, and the winding core 200 is provided with a pole lug; the connection piece 100 may connect the tab and the pole 300 to realize the electrical connection between the tab and the pole 300; of course, the winding core 200 and the connecting piece 100 are both disposed inside the housing, and the top cover is connected to the housing while covering the winding core 200 and the connecting piece 100.

In this embodiment, the connection piece 100 can solve the technical problem that the connection piece 100 connecting the tab and the post 300 is easy to deform in the prior art. Based on this, the battery 10 employing the connection tab 100 can solve the technical problem that the connection tab 100 connecting the tab and the post 300 is easily deformed in the prior art.

In this embodiment, as shown in fig. 2, the connection piece 100 includes a flow guiding portion 110 and a connection body 120. Referring to fig. 1 and 2 in combination, the guiding portion 110 is configured to be electrically connected to the pole 300. The connecting body 120 includes a first body 121 and a second body 122, the first body 121 is connected to the guiding portion 110, the first body 121 and the guiding portion 110 form an included angle, and the second body 122 is electrically connected to the tab. Wherein, one side of the first body 121 is connected to the flow guiding portion 110, and the second body 122 is connected to the other side of the first body 121; it may also be considered that the flow guide 110 and the second body 122 are disposed at opposite sides of the first body 121, respectively. Wherein the thickness of the first body 121 is greater than the thickness of the second body 122. The thickening direction of the first body 121 with respect to the second body 122 may be a direction away from or toward the winding core 200, or may be a direction toward or away from the winding core 200.

As described above, since the thickness of the first body 121 in the connection body 120 is increased, the overall strength of the connection body 120 is increased; meanwhile, since the first body 121 is disposed at the corner of the connection tab 100, the strength at the corner can be improved, the deformation of the connection body 120 can be prevented, and thus the safety performance of the battery 10 employing the connection tab 100 can be improved. Based on this, the connecting piece 100, the battery 10 using the connecting piece 100 and the electric equipment using the battery 10 can all achieve the technical problem that the connecting piece 100 for connecting the tab and the pole 300 is easy to deform in the prior art.

It should be noted that the thickness of the second body 122 and the flow guiding portion 110 is substantially the same as that of the connecting piece 100 in the prior art, while the thickness of the first body 121 corresponds to the thickness of the connecting piece 100 in the prior art, so that the strength of the corner of the connecting piece 100 can be enhanced, and the deformation of the connecting piece 100 can be prevented.

In the present embodiment, the tab is welded to the side of the second body 122 away from the winding core 200. In addition, in the present embodiment, both the guide portion 110 and the connection body 120 are made of aluminum.

Alternatively, in some embodiments of the present utility model, the first body 121 and the second body 122 are integrally formed. That is, after the connection piece 100 is manufactured, the thickness of the first body 121 is greater than that of the second body 122, so as to achieve the purpose of improving the overall strength of the connection piece 100.

In the present embodiment, when the connection sheet 100 is used as the positive electrode connection sheet 100, aluminum may be used.

Alternatively, in other embodiments of the present utility model, the first body 121 includes a body portion having one end connected to the flow guide 110 and the other end connected to the second body 122, and at least one reinforcing portion disposed on a side of the body portion away from the winding core 200 such that the thickness of the first body 121 is greater than the thickness of the second body 122. That is, the first body 121 is configured as a multi-layer structure, and the strength of the body portion is improved by the added reinforcing structure, so as to achieve the purpose of improving the strength of the first body 121. Of course, it can be considered that the strength of the entire first body 121 is enhanced by the reinforcing effect of the reinforcing structure on the body portion.

It should be noted that, the thickness of the main body portion is approximately the same as that of the second main body 122, and in the case of adding the reinforcing portion, the purpose of thickening the first main body 121 is achieved, and thus the purpose of improving the overall strength of the first main body 121 is achieved.

Alternatively, in an embodiment of the present utility model, the thickness of the first body 121 is at least 1.5 times the thickness of the second body 122. The multiple of the thickness of the first body 121 relative to the thickness of the second body 122 may be 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, etc., and of course, in other embodiments of the present utility model, the thickness of the first body 121 may be thicker without affecting the overall volume of the battery 10.

In addition, in the present embodiment, the length of the first body 121 is equal to or less than the length of the second body 122. It should be noted that, in the embodiment of the present utility model, the length of the first body 121 is at most half of the length of the connecting body 120, that is, the length of the first body 121 may be equal to the length of the second body 122; alternatively, the length of the first body 121 may be smaller than the length of the second body 122.

Optionally, in an embodiment of the present utility model, the first body 121 has a first side 1211 and a second side 1212 that are disposed opposite to each other, and the first side 1211 is a side of the first body 121 near the winding core 200; the second body 122 has a third side 1221 and a fourth side 1222 opposite to each other, and the third side 1221 is a side of the second body 122 near the winding core 200. The first side 1211 and the third side 1221 are coplanar, and the second side 1212 and the fourth side 1222 are stepped.

The first side 1211 and the second side 1212 are arranged to be coplanar, the bump of the reinforcing structure to the winding core 200 is avoided, the distance between the second main body 122 and the winding core 200 is conveniently reduced, so that the electrode lug can be conveniently welded to one side, far away from the winding core 200, of the second main body 122, after the electrode lug is welded, the electrode lug is formed into a step shape at the joint of the second main body 122 and the first main body 121 due to the fact that the first main body 121 has a certain thickness, the electrode lug can be accommodated in the step groove, the internal space of the battery can be effectively utilized, the energy density is improved, the unstable condition caused by the excessive protrusion of the electrode lug can be prevented, and the stability of the electrode lug is improved. It should be noted that welding is only one way to electrically connect the tab and the second body 122, and includes riveting, screw connection, and other connection ways that can realize electrical connection.

Based on the above-provided connection piece 100, in the present embodiment, the connection piece 100 with integrated thickness can be directly manufactured by integrally forming through a mold, wherein the length of the first body 121 is at most half of the entire length of the connection body 120, and the thickness of the first body 121 is at least 1.5 times of the thickness of the second body 122. Leading out the positive electrode tab of the winding core 200 from the length direction of the winding core 200, bending the positive electrode tab along the width direction of the second main body 122 of the connecting sheet 100, and welding the bent part on one side of the second main body 122 far from the winding core 200; the current guiding part 110 is welded and fixed with the positive pole 300 on the top cover, so that the winding core 200 can be installed inside the shell, and after the top cover is welded to the shell, the battery 10 can be obtained through processes such as liquid injection, formation and the like.

Based on the above provided battery 10, the embodiment of the present utility model further provides an electric device, where the electric device adopts the above battery 10. Therefore, the electrical equipment provided in this embodiment can solve the technical problem that the connection piece 100 connecting the tab and the pole 300 is easy to deform in the prior art.

In summary, since the thickness of the first body 121 in the connection body 120 is increased, the overall strength of the connection body 120 is increased; meanwhile, since the first body 121 is disposed at the corner of the connection tab 100, the strength at the corner can be improved, the deformation of the connection body 120 can be prevented, and thus the safety performance of the battery 10 employing the connection tab 100 can be improved. Based on this, the connecting piece 100, the battery 10 using the connecting piece 100 and the electric equipment using the battery 10 can all achieve the technical problem that the connecting piece 100 for connecting the tab and the pole 300 is easy to deform in the prior art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A connection tab for connecting a pole (300) to a tab of a winding core (200), the connection tab (100) comprising:

a flow guide (110) for electrical connection with the pole (300); the method comprises the steps of,

the connecting body (120) comprises a first body (121) and a second body (122) which are connected, the first body (121) is connected to the flow guiding part (110), an included angle is formed between the first body (121) and the flow guiding part (110), and the second body (122) is used for being electrically connected with the tab; the thickness of the first body (121) is greater than the thickness of the second body (122).

2. The connecting piece according to claim 1, characterized in that the first body (121) and the second body (122) are integrally formed.

3. The connecting tab according to claim 1, characterized in that the thickness of the first body (121) is at least 1.5 times the thickness of the second body (122).

4. The connecting tab according to claim 1, characterized in that the length of the first body (121) is smaller than or equal to the length of the second body (122).

5. The connecting piece according to claim 1, characterized in that the first body (121) comprises a body part, one end of which is connected to the flow guide (110) and the other end is connected to the second body (122), and at least one reinforcing part, which is arranged on the side of the body part remote from the winding core (200), so that the thickness of the first body (121) is greater than the thickness of the second body (122).

6. The connecting piece according to claim 1, characterized in that the deflector (110) and the connecting body (120) are both made of aluminum.

7. The connecting tab (100) of claim 1, wherein the first body (121) has oppositely disposed first (1211) and second (1212) sides and the second body (122) has oppositely disposed third (1221) and fourth (1222) sides; -said first side (1211) and said third side (1221) are coplanar, said second side (1212) being stepped with said fourth side (1222); the first side (1211) is a side of the first body (121) near the winding core (200); the third side (1221) is a side of the second body (122) near the winding core (200).

8. A battery comprising a connecting tab (100) according to any one of claims 1-7.

9. The battery of claim 8, wherein the tab is welded to a side of the second body (122) remote from the jellyroll (200).

10. A powered device, characterized by comprising a battery (10) according to any of claims 8-9.