Battery pin and battery

Abstract

The utility model provides a battery pin and a battery. The battery pin comprises: a pole connecting sheet having a first connecting portion and a first overlapping portion; the tab connecting sheet is provided with a first bending part, a second connecting part and a second overlapping part, and the second overlapping part and the first overlapping part are arranged in an overlapping manner; wherein the first bending part is located between the second connecting part and the second overlapping part, and the first bending part is bent towards the first overlapping part, so that the second connecting part and the first overlapping part are located in the same plane. According to the application, the pole connecting piece is provided with the first connecting part and the first overlapping part, the tab connecting piece is provided with the first bending part, the second connecting part and the second overlapping part, and the first bending part is positioned between the second connecting part and the second overlapping part and is bent towards the first overlapping part, so that the second connecting part and the first overlapping part are positioned in the same plane; therefore, the space occupied by the battery pin is reduced, and the internal space of the battery is effectively saved finally.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pin and a battery. Background Art

[0002] In the related art, the pins of the battery include a pole connection part and a tab connection part, wherein the pole connection part is connected to the pole, and the tab connection part is connected to the tab, so as to conduct the current of the battery cell from the inside of the battery to the outside of the battery. However, if the thickness of the tab connection part is too thick, it will seriously occupy the space inside the battery. Utility Model Content

[0003] The embodiments of the utility model provide a battery pin and a battery, which can solve the technical problem that the thickness of the tab connection part is too thick, which will seriously occupy the space inside the battery.

[0004] In the first aspect, an embodiment of the utility model provides a battery pin, comprising: a pole connecting piece, the pole connecting piece having a first connecting portion and a first overlapping portion; a pole lug connecting piece, the pole lug connecting piece having a first bending portion, a second connecting portion and a second overlapping portion, the second overlapping portion connecting the first overlapping portion, and the second overlapping portion overlapping with the first overlapping portion; wherein the first bending portion is located between the second connecting portion and the second overlapping portion, and the first bending portion is bent toward the first overlapping portion so that the second connecting portion and the first overlapping portion are located in the same plane.

[0005] In some embodiments, the second overlapping portion is arranged to overlap toward the first overlapping portion.

[0006] In some embodiments, the pole connecting piece and the tab connecting piece are integrally formed.

[0007] In some embodiments, the included angle between the first connecting portion and the first overlapping portion is 0° to 90°.

[0008] In some embodiments, the first connection portion has a through hole, and the through hole is connected to the pole. In some embodiments, the first connection portion has a fuse slot, and the fuse slot is arranged along the direction of the first overlapping portion.

[0009] In some embodiments, the sum of the thicknesses of the first overlapping portion and the second overlapping portion is greater than the thickness of the first connecting portion or the thickness of the second connecting portion.

[0010] In some embodiments, the width of the pole connecting piece is equal to the width of the tab connecting piece.

[0011] In some embodiments, the battery pins are aluminum battery pins or copper battery pins.

[0012] In a second aspect, an embodiment of the utility model provides a battery, wherein the battery comprises the above-mentioned battery pins.

[0013] Beneficial effects of the embodiments of the utility model:

[0014] In an embodiment of the utility model, a pole connecting piece and a pole lug connecting piece are provided, the pole connecting piece is connected to the pole of the battery, and the pole lug connecting piece is connected to the pole of the battery. Since the pole connecting piece has a first connecting portion and a first overlapping portion, the pole lug connecting piece has a first bending portion, a second connecting portion and a second overlapping portion, the first bending portion is located between the second connecting portion and the second overlapping portion, and is bent toward the first overlapping portion, so that the second connecting portion and the first overlapping portion are located in the same plane, thereby reducing the space occupied by the battery pins, and ultimately effectively saving the internal space of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of a battery pin provided by an embodiment of the utility model;

[0017] Figure 2 is a side view of a battery pin provided in an embodiment of the utility model;

[0018] Figure 3 It is a first folding diagram of a battery pin provided by an embodiment of the utility model;

[0019] Figure 4 It is a second folding diagram of the battery pin provided by the embodiment of the utility model;

[0020] Figure 5 It is a third folding diagram of the battery pin provided by the embodiment of the utility model;

[0021] Figure 6 It is a fourth folding diagram of the battery pin provided by the embodiment of the utility model;

[0022] Figure 7 It is a first folding diagram of a battery pin and a battery provided by an embodiment of the utility model;

[0023] Figure 8 This is a second folding diagram of a battery pin and a battery provided in an embodiment of the utility model.

[0024] In the figure: 10-pole connecting piece, 11-first connecting part, 1101-through hole, 111-fuse slot, 12-first overlapping part, 20-ear connecting piece, 21-first bending part, 22-second connecting part, 23-second overlapping part, 100-battery, 1001-pole, 1002-ear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description". Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the utility model with unnecessary details. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0028] Figure 1It is a three-dimensional schematic diagram of a battery pin provided by an embodiment of the utility model; Figure 2 is a side view of a battery pin provided by an embodiment of the utility model. Figure 1 and Figure 2 The present application provides a battery pin, the battery pin comprising: a pole connecting piece 10 and a tab connecting piece 20, the pole connecting piece 10 connected to the tab connecting piece 20. The pole connecting piece 10 is connected to the pole 1001, and the tab connecting piece 20 is connected to the tab 1002.

[0029] In some embodiments of this application, please refer to Figure 1 and Figure 2 The pole connecting piece 10 has a first connecting portion 11 and a first overlapping portion 12. The pole tab connecting piece 20 has a first bending portion 21, a second connecting portion 22 and a second overlapping portion 23, and the second overlapping portion 23 is overlapped with the first overlapping portion 12. The first bending portion 21 is located between the second connecting portion 22 and the second overlapping portion 23, the second overlapping portion 23 is connected to the first overlapping portion 12, and the first bending portion 21 is bent toward the first overlapping portion 12, so that the second connecting portion 22 and the first overlapping portion 12 are located in the same plane.

[0030] In some embodiments of the present application, the pole connecting piece 10 and the tab connecting piece 20 are rectangular in shape. Figure 1 This is only a schematic illustration of the pole connecting piece 10 . In other embodiments, the planar structure of the pole connecting piece 10 may also be other shapes, such as a circular, elliptical, triangular, pentagonal, or other structures.

[0031] In some embodiments of the present application, the pole connecting piece 10 can be connected to the pole 1001 by welding, screw connection, etc. Meanwhile, the tab connecting piece 20 can be connected to the tab 1002 by welding.

[0032] In some embodiments of the present application, a pole connecting piece 10 and a tab connecting piece 20 are provided, the pole connecting piece 10 is connected to the pole 1001, and the tab connecting piece 20 is connected to the tab 1002. Since the pole connecting piece 10 has a first connecting portion 11 and a first overlapping portion 12, and the tab connecting piece 20 has a first bending portion 21, a second connecting portion 22 and a second overlapping portion 23, the first bending portion 21 is located between the second connecting portion 22 and the second overlapping portion 23, and is bent toward the first overlapping portion 12, so that the second connecting portion 22 and the first overlapping portion 12 are located in the same plane, so that the side of the second connecting portion 22 facing away from the first overlapping portion 12 is connected to the tab 1002, thereby effectively saving the space of the battery 100.

[0033] In the prior art, the second connection part 22 usually has two or more layers, while the second connection part 22 of the present application only has one layer. It can be understood that the thickness of the second connection part 22 of the present application is less than the thickness of the second connection part 22 in the prior art.

[0034] Specifically, since the second connecting portion 22 and the first overlapping portion 12 are located in the same plane, the second connecting portion 22 has only one layer. When the tab 1002 is welded with the second connecting portion 22, the thickness of the second connecting portion 22 and the tab 1002 is less than or equal to the thickness of two layers of the second connecting portion 22, thereby reducing the space occupied by the battery.

[0035] At the same time, the thickness of the first overlapping portion 12 and the second overlapping portion 23 is greater than the thickness of a layer of the second connecting portion 22, which can ensure that the battery current density is within an appropriate range, thereby avoiding excessive battery current density due to excessive thickness.

[0036] In some embodiments of this application, please refer to Figure 1 and Figure 2 , the second overlapping portion 23 is arranged to overlap the first overlapping portion 12. First, the second overlapping portion 23 and the first overlapping portion 12 are located in the same plane, then the first overlapping portion 12 and the second overlapping portion 23 are bent at the junction, and the second overlapping portion 23 is folded toward the first overlapping portion 12, so that the first overlapping portion 12 and the second overlapping portion 23 overlap.

[0037] Specifically, the second overlapping portion 23 is turned 180° to completely cover the first overlapping portion 12. In one example, the second overlapping portion 23 can be turned toward the first surface or the second surface close to the first overlapping portion 12. The first surface of the first overlapping portion 12 is arranged opposite to the second surface of the first overlapping portion 12.

[0038] In some embodiments of the present application, the shape of the first overlapping portion 12 is the same as the shape of the second overlapping portion 23, which makes it easier to simultaneously produce two overlapping portions of the same shape during the processing, thereby saving costs. Figure 1 and Figure 2 , the pole connecting piece 10 and the pole tab connecting piece 20 are integrally formed. For example, the pole connecting piece 10 and the pole tab connecting piece 20 can be made of the same metal plate. The production of the battery pin can be achieved through processes such as bending and folding, which can effectively improve the utilization rate of materials and reduce costs. At the same time, this design can also improve production efficiency, because the pole connecting piece 10 and the pole tab connecting piece 20 can be processed at the same time, reducing processing time and cost.

[0039] In some embodiments of this application, please refer to Figure 1 and Figure 2, the included angle α between the first connecting portion 11 and the first overlapping portion 12 is 0° to 90°.

[0040] In some embodiments of the present application, since the pole 1001 and the pole lug 1002 are adjacent, the pole lug tab 20 and the pole lug 10 need to be bent so that the pole lug tab 20 can be connected to the pole lug 1002 and the pole lug 10 can be connected to the pole 1001. Ideally, the angle α between the pole lug tab 20 and the pole lug 10 is 90°. However, due to factors such as limitations in process accuracy, the angle between the pole lug tab 20 and the pole lug 10 may not be able to reach 90 degrees completely during the actual manufacturing process, but can be close to 90 degrees. Here, the pole lug tab 20 and the pole lug 10 can be achieved through a one-time bending process.

[0041] In some embodiments of this application, please refer to Figure 1 and Figure 2 The first connecting portion 11 has a through hole 1101, and the through hole 1101 is connected to the pole 1001, which can facilitate the electrical connection between the pole 1001 and the through hole 1101 and improve the stability of the electrical connection.

[0042] In some embodiments of the present application, the size of the through hole 1101 is adapted to the size of the pole 1001, which can ensure that the pole 1001 can easily penetrate the through hole 1101, thereby improving the reliability of the connection between the pole 1001 and the through hole 1101, and ultimately ensuring the normal operation of the battery.

[0043] In some embodiments of this application, please refer to Figure 1 and Figure 2 The first connection portion 11 has a fuse slot 111 , and the fuse slot 111 is arranged along the direction of the first overlapping portion 12 .

[0044] Specifically, the fuse slot 111 is arranged in a direction close to the first overlapping portion 12, and the long axis direction of the fuse slot 111 is parallel to the length direction of the first overlapping portion 12. It can also be said that the long axis of the fuse slot 111 is parallel to the boundary line between the tab connecting piece 20 and the pole connecting piece 10. When the temperature of the pole connecting piece 10 rises instantly, the fuse slot 111 can play a role of safety protection and melt the metal in time.

[0045] In some embodiments of this application, please refer to Figure 1 and Figure 2, the sum of the thickness of the first overlapping portion 12 and the second overlapping portion 23 is greater than the thickness of the first connecting portion 11 or the thickness of the second connecting portion 22. In this way, the second connecting portion 22 connects the tab 1002, so that the first overlapping portion 12 and the second connecting portion 22 are located in the same plane, and the second overlapping portion 23 and the tab 1002 are located in the same plane, which can reduce the space occupied by the battery pin. Specifically, the number of layers of the second connecting portion 22 is one layer. When the tab 1002 and the second connecting portion 22 are welded together, the thickness of the second connecting portion 22 and the tab 1002 is less than or equal to the thickness of two layers of the second connecting portion 22, thereby reducing the occupied space of the battery. Specifically, the thickness of the first connecting portion 11 is A, whose value is T, the sum of the thickness of the first overlapping portion 12 and the second overlapping portion 23 is B, whose value range is T to 2T, and the sum of the thickness of the tab 1002 and the second connecting portion 22 is T to 2T.

[0046] In addition, the height of the first bending portion ranges from 0.01T to 2.5T. The angle β between the first bending portion 21 and the second connecting portion 22 is 0° to 90°. For example, the angle β can be 30°, 50°, or 70°. Here, the angle β needs to be determined according to actual conditions.

[0047] In some embodiments of this application, please refer to Figure 1 and Figure 2 The width of the pole connecting piece 10 is equal to the width of the pole tab connecting piece 20, which can simplify the processing process and save production time.

[0048] In some embodiments of the present application, the battery pins are aluminum battery pins or copper battery pins. For example, the battery pins can be made of metal aluminum or metal copper, because metal aluminum and metal copper have certain flexibility and can be easily folded and bent.

[0049] Figure 3 It is a first folding diagram of a battery pin provided by an embodiment of the utility model; Figure 4 It is a second folding diagram of the battery pin provided by an embodiment of the utility model; Figure 5 It is a third folding diagram of the battery pin provided by the embodiment of the utility model; Figure 6 This is the fourth folding diagram of the battery pin provided by the embodiment of the utility model. In order to make the above pin, the following steps can be adopted:

[0050] Step 1: First, refer to Figure 3 The battery pin is designed into a Z shape, wherein the Z shape includes a first rectangle and a second rectangle. The first rectangle is a pole connecting piece 10, and the second rectangle is a pole ear connecting piece 20.

[0051] Step 2: Please refer to Figure 4Next, the second overlapping portion 23 of the tab connecting piece 20 is folded toward the first overlapping portion 12 of the pole connecting piece 10 , so that the first overlapping portion 12 and the second overlapping portion 23 are closely fitted.

[0052] Step 3: Please refer to Figure 5 , then, the second overlapping portion 23 and the second connecting portion 22 are bent. Figure 6 The second overlapping portion 23 and the second connecting portion 22 are bent to form a first bent portion 21 .

[0053] This step also includes bending the first connecting portion 11 and the first overlapping portion 12 .

[0054] Furthermore, in order to better implement the embodiments of the present application, based on the battery pins, the present application also provides a battery 100, and the battery 100 includes the above-mentioned battery pins.

[0055] Figure 7 It is a first folding diagram of a battery pin and a battery provided by an embodiment of the utility model; Figure 8 This is a second folding diagram of the battery pin and the battery provided by the embodiment of the utility model. To make the above-mentioned battery 100, the following steps can be adopted:

[0056] See also Figure 7 First, weld the pole connection portion of the battery pin to the pole 1001; then, weld the second connection portion 22 to the pole ear 1002; see Figure 8 Finally, the second overlapping portion 23 is folded toward the first overlapping portion 12 .

[0057] In the battery of the utility model, the present application sets a pole connecting piece and a pole lug connecting piece, the pole connecting piece connects the pole of the battery, and the pole lug connecting piece connects the pole of the battery. Since the pole connecting piece has a first connecting portion and a first overlapping portion, the pole lug connecting piece has a first bending portion, a second connecting portion and a second overlapping portion, the first bending portion is located between the second connecting portion and the second overlapping portion, and is bent toward the first overlapping portion, so that the second connecting portion and the first overlapping portion are located in the same plane, thereby reducing the space occupied by the battery pins of the present application, and ultimately effectively saving battery space.

[0058] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0059] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0060] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0061] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more utility model embodiments, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0062] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0063] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the accompanying materials of this application are inconsistent or conflicting with the content described in this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

[0064] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A battery pin, characterized in that: The battery pins include: A pole connecting piece (10), wherein the pole connecting piece (10) comprises a first connecting portion (11) and a first overlapping portion (12); A tab connecting piece (20), the tab connecting piece (20) comprising a first bending portion (21), a second connecting portion (22) and a second overlapping portion (23), the second overlapping portion (23) being connected to the first overlapping portion (12), and the second overlapping portion (23) and the first overlapping portion (12) being arranged to overlap; The first bending portion (21) is located between the second connecting portion (22) and the second overlapping portion (23), and the first bending portion (21) is bent toward the first overlapping portion (12) so that the second connecting portion (22) and the first overlapping portion (12) are located in the same plane.

2. The battery pin according to claim 1, characterized in that: The second overlapping portion (23) is arranged to overlap the first overlapping portion (12).

3. The battery pin according to claim 1, characterized in that: The pole connecting piece (10) and the pole tab connecting piece (20) are integrally formed.

4. The battery pin according to claim 3, characterized in that: The included angle between the first connecting portion (11) and the first overlapping portion (12) is 0° to 90°.

5. The battery pin according to claim 1, characterized in that: The first connecting portion (11) has a through hole (1101), and the through hole (1101) is connected to the pole (1001).

6. The battery pin according to claim 1, characterized in that: The first connection portion (11) has a fuse slot (111), and the fuse slot (111) is arranged along the direction of the first overlapping portion (12).

7. The battery pin according to claim 1, characterized in that: The sum of the thicknesses of the first overlapping portion (12) and the second overlapping portion (23) is greater than the thickness of the first connecting portion (11) or the thickness of the second connecting portion (22).

8. The battery pin according to claim 1, characterized in that: The width of the pole connecting piece (10) is equal to the width of the pole tab connecting piece (20).

9. The battery pin according to any one of claims 1 to 8, characterized in that: The battery pins are aluminum pins or copper pins.

10. A battery, characterized in that: The battery (100) comprises the battery pin according to any one of claims 1 to 9.

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