Connecting assembly and battery

Abstract

The utility model relates to the technical field of batteries, and provides a connecting assembly and a battery, the connecting assembly comprises a connecting sheet and lower plastic which are made of conductive materials, the connecting sheet is used for connecting a tab and a pole of the battery, the connecting sheet is of a rectangular sheet structure, and the edge of the connecting sheet is provided with a first positioning part; the lower plastic is made of an insulating material, the lower plastic is used for supporting the connecting sheet, and the lower plastic is provided with a second positioning part which is in positioning fit with the first positioning part. Due to the shape design, the center distance between the pole lug area and the pole column area is closer. This optimized design helps to reduce the resistance (DCR) of the battery, improve energy transfer efficiency, while possibly reducing the total weight of the battery assembly. Before ultrasonic welding, the connecting piece and the lower plastic are positioned firstly, and the welding precision and yield can be remarkably improved through the method.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and particularly relates to a connection component and a battery. Background Art

[0002] The basic structure of a battery includes components such as ear tabs, terminal posts, connecting pieces, and lower plastics. The connecting piece is a key component for connecting the ear tabs and the terminal posts. It is usually made of a highly conductive metal (such as copper or aluminum), and the connecting piece is generally arranged on the lower plastics. The lower plastics are located below the top cover plate of the battery, and it provides additional structural support and protection. The connecting piece must be accurately positioned on the terminal post to ensure stable electrical contact and reliable connection. Since the size of the connecting piece is small and high precision is required, the positioning accuracy has a significant impact on the battery performance.

[0003] In the prior art, in order to ensure the accurate positioning of the connecting piece, a specially designed auxiliary tooling is usually required. When the connecting piece is positioned with the terminal post, due to the accuracy problem of the tooling, the positioning effect may be poor. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a connection component and a battery to facilitate the installation of the connecting piece.

[0005] To achieve the above purpose and other related purposes, the present utility model provides a connection component applied to a battery, including:

[0006] A connecting piece made of a conductive material. The connecting piece includes two ear tab connection areas for connecting the ear tabs of the battery and a terminal post connection area for connecting the terminal posts of the battery. The connecting piece is in a rectangular sheet structure. The two ear tab connection areas are located on both sides of the terminal post connection area in the length direction or width direction of the connecting piece. A first positioning portion is provided on the edge of the connecting piece.

[0007] A lower plastic made of an insulating material. The lower plastic is used to support the connecting piece, and a second positioning portion that forms a positioning fit with the first positioning portion is provided on the lower plastic.

[0008] In a specific embodiment of the present utility model, the first positioning portion includes at least one protruding portion protruding from the edge along the plane where the connecting piece is located. A positioning notch is opened on the protruding portion, and the second positioning portion is a positioning convex post inserted between two adjacent protruding portions.

[0009] In a specific embodiment of the present utility model, the first positioning portion is a positioning notch opened on the edge of the connecting piece, and the second positioning portion is a positioning convex post inserted into the positioning notch.

[0010] In a specific embodiment of the present utility model, the positioning notch is a U-shaped notch, and the positioning convex post is a cylindrical structure that matches the size of the U-shaped notch.

[0011] In a specific embodiment of the present utility model, at least one first positioning portion is respectively provided on two opposite edges of the connecting piece, and at least one second positioning portion is respectively provided corresponding to each edge where the first positioning portion is located.

[0012] In a specific embodiment of the present utility model, the connecting piece is a rectangular structure, the first positioning portion is provided on the long edge of the rectangle, and the two ear connection areas and the pole connection area are arranged along the length direction of the rectangle.

[0013] In a specific embodiment of the present utility model, the number of the first positioning portions is greater than the number of the second positioning portions.

[0014] In a specific embodiment of the present utility model, the second positioning portions on both sides of the connecting piece are arranged in a staggered manner, and the staggered direction of the staggered arrangement is the edge direction where the first positioning portion is located.

[0015] In a specific embodiment of the present utility model, the panel of the connecting piece is an asymmetric structure.

[0016] In a specific embodiment of the present utility model, the shape of one of the four corners of the connecting piece is different from the shapes of the other three corners.

[0017] The present utility model also provides a battery, including the connecting component as described above.

[0018] The present utility model provides a connecting component and a battery. In the above solution, since the two ear connection areas are located on both sides of the pole connection area, this shape design makes the center distance between the ear area and the pole area closer. This optimized design helps to reduce the resistance (DCR) of the battery, improve the energy transmission efficiency, and may also reduce the total weight of the battery component. Before ultrasonic welding, the connecting piece is first positioned with the lower plastic. This method can significantly improve the welding accuracy and yield. By ensuring the accurate position of the connecting piece, errors during the welding process can be avoided, ensuring stable electrical contact and structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 The structural schematic diagram of the connecting piece in the prior art;

[0021] Figure 2 The structural schematic diagram of the connecting piece in an embodiment of the present invention;

[0022] Figure 3 The front view of the connecting component in an embodiment of the present invention;

[0023] Figure 4 The three-dimensional installation schematic diagram of the connecting component in an embodiment of the present invention;

[0024] Figure 5 The structural schematic diagram of the connecting piece in another embodiment of the present invention;

[0025] Figure 6 The position schematic diagram of the tab connection area and the terminal connection area on the connecting piece in an embodiment of the present invention.

[0026] Explanation of the reference numerals in the drawings: 1. Terminal area; 2. Tab area; 10. Connecting piece; 11. First positioning part; 12. Long edge; 13. Tab connection area; 14. Terminal connection area; 15. Chamfer; 20. Lower plastic; 21. Second positioning part. Detailed implementation manners

[0027] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0029] The basic structure of the battery includes:

[0030] Tabs: Tabs are the output terminals of the battery, usually made of metal, such as copper or aluminum. They are connected to the terminals of the battery and are electrically connected to electrical equipment through the connecting piece 10. Tabs are usually marked with positive and negative polarity marks on the battery to facilitate correct connection to the circuit.

[0031] Terminal post: The terminal post is the main electrode inside the battery and is the connection point for the positive and negative electrodes. The chemical reaction of the battery occurs on the terminal post, generating current. The terminal post is usually made of lead, lead alloy, or other chemical materials to meet the requirements of different types of batteries.

[0032] Connecting piece 10: The connecting piece 10 is an important component used to connect the tab and the terminal post of the battery. It is usually made of highly conductive metal materials such as copper or aluminum to ensure that the current can flow smoothly from the terminal post to the tab, while maintaining the stability and safety of the battery.

[0033] Lower plastic 20: The lower plastic 20 is located below the top cover plate of the battery, providing additional structural support and protection. It helps to fix and support the terminal post and the connecting piece 10, while reducing the impact of the external environment on the inside of the battery. The lower plastic 20 is usually made of plastic or other non-conductive materials to prevent electrode short-circuit or other accidents.

[0034] As Figure 1 shown in the structure of the connecting piece 10 in the prior art, it includes a terminal post area 1 and a tab area 2. The terminal post area 1 refers to the area where the connecting piece 10 is connected to the terminal post part of the battery, while the tab area 2 refers to the area where the connecting piece 10 is connected to the tab part of the battery. In most cases, the center distance between the tabs is not equal to the center distance between the terminal posts, resulting in a relatively large length and weight of the connecting piece 10, and the need for special-shaped design, with relatively high processing costs.

[0035] As Figure 2 、 3 、4 shows that the present utility model provides a connection assembly applied to a battery, including a connecting piece 10 and a lower plastic 20.

[0036] The connecting piece 10 is made of a conductive material. The connecting piece 10 includes two tab connection areas 13 for connecting the tabs of the battery and a terminal post connection area 14 for connecting the terminal post of the battery. As Figure 2 、 6 shown, the connecting piece 10 is in a rectangular sheet structure. The two tab connection areas 13 are located on both sides of the terminal post connection area 14 in the length direction or width direction of the connecting piece 10. A first positioning portion 11 is provided on the edge of the connecting piece 10.

[0037] The tab connection area 13 and the terminal connection area 14 can be respectively attached to the tab and the terminal. The rectangular sheet structure can provide a stable connection and can adapt to tabs and terminals of different sizes and shapes. At the same time, since the tab connection area 13 is located on both sides of the terminal connection area 14, it can effectively make the center distance between the tab connection area 13 and the terminal connection area 14 closer. This design can reduce the resistance between the tab and the terminal and improve the overall performance and stability of the battery. That is, a battery structure with a relatively close center distance between the tab and the terminal is implicitly disclosed in this application. In addition, the connecting piece 10 of the rectangular sheet structure is convenient for processing, has a shorter length and a lower weight. The rectangle in this application refers to a structure that is approximately rectangular, not a strictly rectangular shape.

[0038] The lower plastic 20 is made of an insulating material. The lower plastic 20 is used to support the connecting piece 10, and a second positioning portion 21 that forms a positioning fit with the first positioning portion 11 is provided on the lower plastic 20. The main function of the lower plastic 20 is to provide support and fixation for the connecting piece 10. As an insulating material, the lower plastic 20 can effectively isolate the connecting piece 10 and avoid unnecessary electrical contact or short circuit. This positioning fit can ensure that the connecting piece 10 maintains the correct position and orientation during installation, thereby ensuring the overall structure of the battery assembly is stable and reliable. The first positioning portion 11 and the second positioning portion 21 can be positioned by means such as pin positioning, tenon positioning, round pin positioning, and tooth positioning. A hole for the terminal to pass through is provided on the lower plastic 20.

[0039] As Figure 5 shown, the first positioning portion 11 includes at least one protruding portion along the protruding edge of the connecting piece surface direction. A positioning notch is provided on the protruding portion, and the second positioning portion 21 is a positioning stud inserted between two adjacent protruding portions. Through the protruding portion and the positioning notch of the first positioning portion 11, and the positioning stud of the second positioning portion 21, precise positioning between components can be achieved. The design of the positioning stud is not only for positioning but also can increase the connection stability between components. Once the components are correctly positioned, the positioning stud can prevent them from moving or detaching due to vibration or other external forces during installation.

[0040] As Figure 3 、 4 shown, the first positioning portion 11 is a positioning notch provided on the edge of the connecting piece 10, and the second positioning portion 21 is a positioning stud inserted into the positioning notch. The combination of the positioning notch and the positioning stud can ensure precise alignment of the connecting piece during assembly. The positioning stud can be completely inserted into the positioning notch to maintain the correct position and orientation of the connecting piece. This positioning method is relatively simple and easy to manufacture and assemble. The design of the positioning notch and the positioning stud makes the assembly process of the components more efficient.

[0041] AsFigure 3 As shown, the positioning notch is a U-shaped notch, and the positioning stud is a cylindrical structure that matches the size of the U-shaped notch. That is, the inner diameter of the semi-circular bottom of the U-shaped notch is the same as or close to the outer diameter of the cylindrical structure. The shape of the semi-circular bottom of the U-shaped notch allows the cylindrical structure of the positioning stud to be fully inserted therein, ensuring the precise mechanical alignment of the connecting member. The design with similar or the same size ensures easy insertion and fixation during assembly. This design is relatively simple and easy to manufacture and assemble. By ensuring the size matching of the U-shaped notch and the cylindrical structure, the process complexity in the manufacturing process can be reduced, and the assembly efficiency can be improved.

[0042] As Figure 2 , 3 , 4 shows that at least one first positioning portion 11 is respectively provided on two opposite edges of the connecting piece 10, and at least one second positioning portion 21 is respectively provided corresponding to each edge where the first positioning portion 11 is located. That is, bilateral positioning is provided, thereby enhancing the stability and the ability of precise alignment of the connecting member. Bilateral positioning means that the connecting member has positioning support in two directions. The setting of the positioning components can ensure that the connecting member remains stable during assembly and use, reducing the possibility of errors and movement. The positioning components are evenly distributed on the two edges, which helps to balance the load and force distribution of the connecting member. This uniformity not only enhances the stability but also can improve the durability and service life of the connecting member.

[0043] As Figure 2 shown, the connecting piece 10 is a rectangular structure, and the aspect ratio range of the rectangular structure is 1.5 - 3.5. The first positioning portion 11 is provided on the long edge 12 of the rectangle. Setting the positioning portion on the long edge 12 can provide greater stability and accuracy. The long side is usually the main supporting direction of the connecting member, so setting the positioning portion here helps to ensure that the connecting member does not move or deform unnecessarily during use.

[0044] As Figure 3 , 4As shown, the number of the first positioning portions 11 is greater than the number of the second positioning portions 21. By increasing the number of the first positioning portions 11, the connecting piece 10 can adapt to the shapes and sizes of various different batteries. The positions and the number of the first positioning portions 11 can be adjusted according to the requirements of a specific battery, so as to ensure accurate positioning. Although the shapes of the batteries may be different, the basic shapes of the connecting piece 10 are similar. This design allows, without changing the overall structure of the connecting piece 10, to meet the requirements of different batteries by adjusting the configuration of the positioning portions, thereby improving the versatility and applicability of the connecting piece. Using the same design of the connecting piece 10 and varying the configuration of the positioning portions as needed can simplify production and inventory management. This modular design makes the production line more flexible and enables a faster response to the requirements of different battery specifications.

[0045] As Figure 3 shown, the second positioning portions 21 on both sides of the connecting piece 10 are arranged in a staggered manner, and the staggering direction of the staggered arrangement is the edge direction where the first positioning portions 11 are located. The staggered arrangement can help to more accurately position the connecting piece during the assembly process. Even if there are first positioning portions 11 on the edge of the connecting piece 10, the staggered second positioning portions 21 can ensure that the connecting piece can be correctly aligned in multiple directions, improving the accuracy of the assembly. This design is particularly suitable for dealing with the situation where the shape of the lower plastic 20 is somewhat different, because the staggered arrangement can more flexibly adapt to the structures of different-shaped lower plastics 20. Different batteries or different product models may have slightly different shape requirements, and the staggered arrangement can effectively cope with these changes.

[0046] As Figure 3 shown, the panel of the connecting piece 10 is an asymmetric structure. The shape of one of the four corners of the connecting piece 10 is different from the shapes of the other three corners. Specifically, one of the four corners of the connecting piece 10 is a chamfer 15, and the other three corners are arc chamfer structures. The combination of the chamfer 15 and the arc chamfers can provide obvious visual and tactile differences, enabling users or automated assembly systems to easily identify the correct direction of the connecting piece 10. This intuitive identification can reduce the possibility of assembly errors. Through the asymmetric design, especially the introduction of the chamfer 15, it can be ensured that the connecting piece 10 can only be installed in the correct direction during assembly. This restrictive design helps to prevent assemblers or systems from installing the connecting piece 10 in the wrong direction, thereby improving the assembly efficiency and quality. The selection of the chamfer 15 and the arc chamfer structures may also be related to the specific functions of the connecting piece 10. For example, the chamfer 15 can be used for specific mechanical locking or alignment functions, while the arc chamfers can provide a comfortable feel or compatibility with other components.

[0047] The present utility model also provides a battery, including the connecting component as described above.

[0048] In summary, the present utility model proposes a connection component and a battery. In the above solution, since the two ear connection regions 13 are located on both sides of the pole connection region 14, this shape design makes the center distance between the ear region 2 and the pole region 1 closer. This optimized design helps to reduce the battery's resistance (DCR), improve the energy transfer efficiency, and may also reduce the total weight of the battery assembly. Before ultrasonic welding, the connecting piece 10 is first positioned with the lower plastic 20. This method can significantly improve the welding accuracy and yield. By ensuring the accurate position of the connecting piece 10, errors during the welding process can be avoided, ensuring stable electrical contact and structural strength.

[0049] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

[0050] In the description herein, numerous specific details are provided, such as examples of components and / or methods, to provide a complete understanding of the embodiments of the present utility model. However, those skilled in the art will recognize that the embodiments of the present utility model can be practiced without one or more of the specific details or by using other devices, systems, components, methods, parts, materials, components, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present utility model.

[0051] Throughout the specification, reference to "one embodiment", "an embodiment", or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model, and not necessarily in all embodiments. Thus, the appearances of the phrases "in one embodiment", "in an embodiment", or "in a specific embodiment" in various places throughout the specification are not necessarily referring to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the present utility model can be combined in any suitable manner with one or more other embodiments. It should be understood that other variations and modifications of the embodiments of the utility model described and shown herein may be made in accordance with the teachings herein and will be considered part of the spirit and scope of the present utility model.

[0052] It should also be understood that one or more of the elements shown in the drawings can be implemented in a more separated or more integrated manner, or even removed in some cases because they are inoperable or provided because they may be useful for a particular application.

[0053] In addition, unless otherwise expressly specified, any reference signs in the drawings shall be construed as merely exemplary and not as limiting. Further, unless otherwise indicated, the term "or" as used herein is generally intended to mean "and / or". Where terms are anticipated to be unclear because of their disjunctive or conjunctive capabilities, the combination of components or steps will also be regarded as being specified.

[0054] As used in the description herein and throughout the claims below, unless otherwise indicated, the singular forms "a", "an", and "the" include plural referents. Also, as used in the description herein and throughout the claims below, unless otherwise indicated, the phrase "in" shall mean "in" and "on".

[0055] The foregoing description of the exemplary embodiments of the present invention (including what is described in the Abstract of the Disclosure) is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of the invention and examples of the invention have been described herein for illustrative purposes only, various equivalent modifications will be apparent to and can be made by those skilled in the art within the spirit and scope of the present invention. As noted, these modifications of the present invention can be made in accordance with the foregoing description of the exemplary embodiments of the present invention and these modifications will fall within the spirit and scope of the present invention.

[0056] The systems and methods have been described generally herein to facilitate an understanding of the details of the present invention. In addition, various specific details have been given to provide a general understanding of embodiments of the present invention. However, one of ordinary skill in the relevant art will recognize that embodiments of the present invention may be practiced without one or more of the specific details, or with other devices, systems, components, methods, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

[0057] Accordingly, while the present invention has been described herein with reference to its specific embodiments, modifications, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some instances, some features of the present invention may be employed without a corresponding use of other features without departing from the scope and spirit of the claimed invention. Thus, many modifications may be made to adapt a particular situation or material to the spirit and scope of the present invention. The present invention is not intended to be limited to the specific terms and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the present invention will be determined only by the appended claims.

Claims

1. A connection component, applied to a battery, characterized in that Comprising: A connecting piece, made of a conductive material, the connecting piece includes two tab connecting areas for connecting the tabs of the battery and a terminal connecting area for connecting the terminals of the battery, the connecting piece is in a rectangular sheet structure, the two tab connecting areas are located on both sides of the terminal connecting area in the length direction or width direction of the connecting piece, and a first positioning portion is provided on the edge of the connecting piece; A lower plastic, made of an insulating material, the lower plastic is used to support the connecting piece, and a second positioning portion that forms a positioning fit with the first positioning portion is provided on the lower plastic.

2. The connection component according to claim 1, characterized in that The first positioning portion includes at least one protruding portion protruding from the edge along the plane direction of the connecting piece, and a positioning notch is provided on the protruding portion, and the second positioning portion is a positioning stud inserted between two adjacent protruding portions.

3. The connecting component according to claim 1, characterized in that, The first positioning portion is a positioning notch opened on the edge of the connecting piece, and the second positioning portion is a positioning stud inserted into the positioning notch.

4. The connecting component according to claim 2 or 3, characterized in that, The positioning notch is a U-shaped notch, and the positioning stud is a cylindrical structure that matches the size of the U-shaped notch.

5. The connection component according to claim 1, characterized in that, At least one first positioning portion is respectively provided on two opposite edges of the connecting piece, and at least one second positioning portion is respectively provided corresponding to each edge where the first positioning portion is located.

6. The connecting component according to claim 5, wherein, The connecting piece is in a rectangular structure, the first positioning portion is provided on the long edge of the rectangle, and the two tab connecting areas and the terminal connecting area are arranged along the length direction of the rectangle.

7. The connection component according to claim 5, wherein The second positioning portions on both sides of the connecting piece are arranged in a staggered manner, and the staggering direction of the staggered arrangement is the direction of the edge where the first positioning portion is located.

8. The connection component according to claim 1, wherein The panel of the connecting piece is an asymmetric structure.

9. The connection component according to claim 8, characterized in that The shape of one of the four corners of the connecting piece is different from the shapes of the other three corners.

10. A battery, characterized in that, Comprising the connecting component according to any one of claims 1-9.

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