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 cement is made of an insulating material, the lower plastic cement is used for supporting the connecting sheet, the lower plastic cement is provided with a second positioning part which is in positioning fit with the first positioning part, the first positioning part is a rectangular notch, and the second positioning part is embedded into the rectangular notch to form positioning. 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.

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, connection plates, and lower plastics. The connection plate is a key component for connecting the ear tabs and the terminal posts. It is usually made of highly conductive metal (such as copper or aluminum), and the connection plate 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 connection plate must be accurately positioned on the terminal post to ensure stable electrical contact and reliable connection. Since the connection plate has a small size and high precision requirements, 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 connection plate, a specially designed auxiliary tooling is usually required. When the connection plate is positioned with the terminal post, due to the tooling accuracy problem, 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 connection plate.

[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 connection plate made of a conductive material. The connection plate 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 connection plate 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 connection plate. A first positioning portion is provided on the edge of the connection plate.

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

[0008] Wherein the first positioning portion is a rectangular notch, and the second positioning portion is embedded in the rectangular notch to form a positioning.

[0009] In a specific embodiment of the present utility model, at least one first positioning portion is respectively provided on two opposite edges of the connection plate, and at least one second positioning portion is respectively provided corresponding to each edge where the first positioning portion is located.

[0010] In a specific embodiment of the present utility model, the connecting piece is of a rectangular structure, the first positioning portion is arranged on the long side edge of the rectangle, and the two ear connection areas and the pole connection area are arranged along the length direction of the rectangle.

[0011] In a specific embodiment of the present utility model, the first positioning portion is arranged in the middle of the long side edge.

[0012] In a specific embodiment of the present utility model, the length of the first positioning portion is more than twice the length of the second positioning portion, and the length is the dimension in the edge direction where the first positioning portion is located.

[0013] In a specific embodiment of the present utility model, the second positioning portion is of a cylindrical structure, and the peripheral wall of the cylindrical structure fits against two adjacent sides of the rectangular notch.

[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 staggering 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 of 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 that 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 assembly. 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. Among them, the rectangular notch can provide a very precise positioning effect. Because a rectangle has clear boundaries and corners, when the second positioning portion (usually a matching protrusion or bulge) is embedded into the rectangular notch, the position and direction of the connecting piece on the lower plastic can be fixed very accurately. Description of the Drawings

[0019] 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, without creative efforts, other drawings can be obtained based on these drawings.

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

[0021] Figure 2 It is a schematic structural diagram of a connecting piece in an embodiment of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of a lower plastic in an embodiment of the present utility model;

[0023] Figure 4 It is a three-dimensional installation schematic diagram of a connecting component in an embodiment of the present utility model;

[0024] Figure 5 It is a cross-sectional view of a connecting component in an embodiment of the present utility model;

[0025] Figure 6 It is a front view of a connecting component in an embodiment of the present utility model;

[0026] Figure 7 It is a schematic diagram of the positions of the tab connection area and the pole connection area on the connecting piece in an embodiment of the present utility model..

[0027] Explanation of reference numerals: 1. Pole area; 2. Tab area; 3. Pole bottom plate; 10. Connecting piece; 11. First positioning portion; 12. Long edge; 13. Tab connection area; 14. Pole connection area; 20. Lower plastic; 21. Second positioning portion. Specific embodiments

[0028] The following uses specific specific examples to illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. In actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout type may also be more complex.

[0030] The basic structure of the battery includes:

[0031] Tab: The tab is the output terminal of the battery and is usually made of metal such as copper or aluminum. They are connected to the battery terminals and are electrically connected to electrical equipment through connecting piece 10. Tabs are usually marked with positive and negative polarity markings on the battery to facilitate correct connection to the circuit.

[0032] Terminal: The terminal is the main electrode inside the battery and is the joint of the positive and negative electrodes. The chemical reaction of the battery occurs on the terminal, generating current. The terminal is usually made of lead, lead alloy, or other chemical materials to meet the requirements of different types of batteries.

[0033] Connecting piece 10: Connecting piece 10 is an important component used to connect the tab and terminal of the battery. It is usually made of highly conductive metal materials such as copper or aluminum to ensure that current can flow smoothly from the terminal to the tab while maintaining the stability and safety of the battery.

[0034] Lower plastic 20: Lower plastic 20 is located below the top cover plate of the battery and provides additional structural support and protection. It helps to fix and support the terminal and connecting piece 10 while reducing the impact of the external environment on the inside of the battery. Lower plastic 20 is usually made of plastic or other non-conductive materials to prevent electrode short circuits or other accidents.

[0035] As Figure 1 shown is the structure of connecting piece 10 in the prior art, which includes terminal area 1 and tab area 2. Terminal area 1 refers to the area where connecting piece 10 is connected to the terminal part of the battery, and tab area 2 refers to the area where 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 terminals, resulting in a relatively long and heavy connecting piece 10 and the need for special-shaped design, with a relatively high processing cost.

[0036] As Figure 4 、 5 、6 shows, the present utility model provides a connecting component applied to a battery, including connecting piece 10 and lower plastic 20.

[0037] Connecting piece 10, 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 connection area 14 for connecting the terminals of the battery, as Figure 2 、6 As shown in FIGS. 7, the connecting piece 10 is of a rectangular sheet structure. Two of the tab connection regions 13 are located on both sides of the pole connection region 14 in the length direction or the width direction of the connecting piece 10. A first positioning portion 11 is provided on the edge of the connecting piece 10.

[0038] The tab connection region 13 and the pole connection region 14 can be respectively attached and connected to the tab and the pole. The rectangular sheet structure can provide a stable connection and can adapt to tabs and poles of different sizes and shapes. At the same time, since the tab connection region 13 is located on both sides of the pole connection region 14, it can effectively make the center distance between the tab connection region 13 and the pole connection region 14 closer. This design can reduce the resistance between the tab and the pole 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 pole is implicitly disclosed in the present application. In addition, the connecting piece 10 of the rectangular sheet structure is convenient for processing, has a shorter length and lower weight. The rectangle in the present application refers to a structure that is approximately rectangular rather than a strictly rectangular shape.

[0039] The lower plastic 20 is made of an insulating material. The lower plastic 20 is used to support the connecting piece 10. As Figure 3 、 6 shown in FIGS., 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 to 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. The lower plastic 20 is provided with a hole for the pole to pass through and a groove for accommodating the pole bottom plate 3.

[0040] Wherein the first positioning portion 11 is a rectangular notch, and the second positioning portion 21 is embedded in the rectangular notch to form a positioning. The rectangular notch provides a clear boundary and shape, enabling the second positioning portion 21 to be accurately embedded therein. This precise positioning can ensure that the connecting piece does not shift or become unstable during the assembly process, thereby improving the quality and reliability of the product. The design of the rectangular notch and the embedded part makes the assembly process simpler and faster. The operator can easily embed the second positioning portion 21 into the rectangular notch without complex tools or special technical requirements. The rectangular notch refers to a notch similar to a groove shape, with three sides of the rectangle and the remaining long side of the rectangle being open.

[0041] As Figure 4 、 5, as shown in FIGS. 6, at least one, preferably one, of the first positioning portions 11 is provided on each of the two opposite edges of the connecting piece 10, and at least one, preferably one, of the second positioning portions 21 is 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 accurate 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.

[0042] As Figure 2 shown, the connecting piece 10 has 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, and the two tab connection regions 13 and the pole connection region 14 are arranged along the length direction of the rectangle. Providing the first positioning portion 11 on the long edge 12 can provide greater stability and accuracy. The long side is usually the main support direction of the connecting member, so setting the positioning portion here helps to ensure that the connecting member does not undergo unnecessary movement or deformation during use.

[0043] As Figure 2 , 4 , as shown in FIGS. 6, the first positioning portion 11 is provided in the middle of the long edge 12. That is, the connecting piece 10 has an overall "I" - shaped structure. By placing the positioning portion in the middle of the long edge 12, the connecting piece 10 can obtain more uniform support and stability during assembly. The "I" - shaped structure usually has symmetry, which means that the connecting piece 10 will not tilt or rotate during the assembly process. When the second positioning portion 21 is aligned with the first positioning portion 11, its embedding operation is more intuitive and easy. Since the positioning portion is located in the middle of the long edge 12, the operator can more conveniently and accurately align, thereby reducing errors and time costs during the assembly process.

[0044] As Figure 4 , 6As shown, the length of the first positioning portion 11 is greater than twice the length of the second positioning portion 21. The length is the dimension in the edge direction where the first positioning portion 11 is located. That is, the rectangular groove as a whole is larger than the second positioning portion 21, so that various shapes and sizes of the second positioning portion 21 can be accommodated inside the rectangular groove. Regardless of the specific shape and size of the second positioning portion 21, a suitable position can be found in the rectangular groove for embedding, thereby improving the versatility and adaptability of the connecting piece. Since the first positioning portion 11 is larger in size, inserting the second positioning portion 21 will be more convenient and easier. The large-sized first positioning portion 11 provides more space and leeway, allowing the operator to more easily insert the second positioning portion 21 accurately into the correct position, reducing errors and inaccuracies during the assembly process. Since the assembly process is simpler and more intuitive, the operator does not need to spend too much time and effort to adjust or reposition the connecting piece. This design can significantly reduce the assembly cost, improve production efficiency and product quality.

[0045] As Figure 4 , 6 shown, the second positioning portion 21 is a cylindrical structure, and the peripheral wall of the cylindrical structure fits against two adjacent sides of the rectangular notch. Fitting against two adjacent sides ensures accurate alignment and positioning of the connecting piece during assembly. At the same time, the cylindrical structure can effectively reduce jamming caused by inaccurate positioning or other factors. The operator only needs to make slight adjustments or rotations to solve possible resistance problems, making the insertion and disassembly processes smoother and more reliable.

[0046] As Figure 6 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 portion 11 is located. That is, the second positioning portions 21 on both sides are arranged diagonally. The staggered arrangement can help to more accurately position the connecting piece during the assembly process. Even if there is a first positioning portion 11 on the edge of the connecting piece 10, the staggered arrangement of the second positioning portions 21 can ensure that the connecting piece can be correctly aligned in multiple directions, improving the assembly accuracy. This design is particularly suitable for dealing with situations where the shape of the lower plastic 20 is somewhat different, because the staggered arrangement can more flexibly adapt to different-shaped lower plastic 20 structures. Different batteries or different product models may have slightly different shape requirements, and the staggered arrangement can effectively handle these changes.

[0047] In a specific embodiment of the present invention, the panel of the connecting piece 10 has an asymmetric structure. One of the four corners of the connecting piece 10 has a different shape from the other three corners. Specifically, one of the four corners of the connecting piece 10 is a chamfered corner or an arc chamfer, and the other three corners are right-angle structures. The combination of the chamfered corner and the right-angle structure can provide an obvious visual and tactile difference, enabling users or automated assembly systems to easily identify the correct orientation of the connecting piece 10. This intuitive identification can reduce the possibility of assembly errors. Through the asymmetric design, especially the introduction of the chamfered corner, it can be ensured that the connecting piece 10 can only be installed in the correct orientation 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 choice of the chamfered corner 13 and the arc chamfer structure may also be related to the specific function of the connecting piece 10. For example, the chamfered corner 13 can be used for specific mechanical locking or alignment functions.

[0048] The present utility model also provides a battery, including the connecting component as described above.

[0049] In summary, the present utility model provides a connecting component and a battery. In the above solution, since the two ear connection areas 13 are located on both sides of the pole connection area 14, this shape design makes the center distance between the ear area 2 and the pole area 1 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 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.

[0050] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used 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 idea disclosed by the present utility model should still be covered by the claims of the present utility model.

[0051] In the description herein, many 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 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.

[0052] Throughout the specification, the references to "one embodiment", "an embodiment" or "a specific embodiment" mean that the particular features, structures or characteristics described in connection with the embodiment are 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 may 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.

[0053] It should also be understood that one or more of the elements shown in the drawings may also 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.

[0054] In addition, unless otherwise explicitly specified, any marked arrows in the drawings should be regarded as exemplary only and not restrictive. Further, unless otherwise indicated, the term "or" as used herein generally intends to mean "and / or". In cases where the term is anticipated to be unclear due to the separation or combination capabilities provided, the combination of components or steps will also be regarded as having been specified.

[0055] 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" means "in" and "on".

[0056] The above description of the embodiments shown in the present utility model (including what is described in the abstract of the specification) is not intended to be exhaustive or to limit the present utility model to the precise forms disclosed herein. Although specific embodiments of the present utility model and examples of the present utility model are described herein for illustrative purposes only, various equivalent modifications will be within the spirit and scope of the present utility model as will be recognized and understood by those skilled in the art. As noted, these modifications may be made to the present utility model in accordance with the above description of the embodiments of the present utility model, and these modifications will be within the spirit and scope of the present utility model.

[0057] The present text has generally described systems and methods to facilitate understanding of the details of the present utility model. In addition, various specific details have been given to provide an overall understanding of the embodiments of the present utility model. However, those skilled in the relevant art will recognize that the embodiments of the present utility model can be practiced without one or more of the specific details, or can be practiced using other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations have not been particularly shown or described in detail to avoid obscuring aspects of the embodiments of the present utility model.

[0058] Accordingly, while the present utility model has been described herein with reference to its specific embodiments, modifications, various changes, and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present utility model will be employed without corresponding use of other features without departing from the scope and spirit of the claimed utility model. Therefore, many modifications can be made to adapt a particular environment or material to the substantial scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present utility model will be determined only by the appended claims.

Claims

1. A connecting component, applied to a battery, characterized in that Comprising: A connecting piece, made of a conductive material, the connecting piece includes two tab connecting regions for connecting the tabs of the battery and a terminal connecting region for connecting the terminals of the battery, the connecting piece is of a rectangular sheet structure, the two tab connecting regions are located on both sides of the terminal connecting region 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; Wherein the first positioning portion is a rectangular notch, and the second positioning portion is embedded in the rectangular notch to form positioning.

2. The connecting 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.

3. The connection component according to claim 2, characterized in that The connecting piece is of a rectangular structure, the first positioning portion is provided on the long edge of the rectangle, and the two tab connecting regions and the terminal connecting region are arranged along the length direction of the rectangle.

4. The connecting component according to claim 3, characterized in that, The first positioning portion is provided in the middle of the long edge.

5. The connecting component according to claim 2, wherein The length of the first positioning portion is greater than twice the length of the second positioning portion, and the length is the dimension in the direction of the edge where the first positioning portion is located.

6. The connecting component according to claim 5, characterized in that, The second positioning portion is of a cylindrical structure, and the peripheral wall of the cylindrical structure fits against two adjacent sides of the rectangular notch.

7. The connecting component according to claim 6, 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 connecting component according to claim 1, characterized in that, The panel of the connecting piece is of an asymmetric structure.

9. The connecting component according to claim 8, wherein 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, Including the connecting component according to any one of claims 1-9.

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