Electric connector and battery

Abstract

The utility model relates to the technical field of batteries, in particular to an electric connecting piece and a battery. The switching piece and the pole column are integrally formed, the switching piece is provided with two pole lug welding areas, and the two pole lug welding areas are located on the two sides of the pole column respectively; and the switching piece is provided with a positioning part for positioning the relative position of the switching piece and the battery cover plate. The electric connector provided by the utility model can continuously maintain relatively high assembling and positioning precision, and can ensure the consistency and reliability during batch production of batteries.

Description

Technical Field

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

[0002] The basic structure of a battery includes components such as pole ears, pole columns, adapter plates, and battery cover plates. The adapter plate is an important component connecting the pole ear and the pole column, and is usually made of a highly conductive metal (such as copper or aluminum). The battery cover plate generally includes components such as a battery top cover plate and a lower plastic, etc., where the lower plastic is usually located on one side of the adapter plate and under the battery top cover plate, and the lower plastic is used to provide additional structural support and protection for the adapter plate.

[0003] In the prior art, in order to ensure the accurate positioning of the adapter plate, a specially designed auxiliary tooling is usually required. However, when positioning the adapter plate and the battery cover plate, due to the accuracy problem of the auxiliary tooling, the positioning effect may be unsatisfactory. In addition, the auxiliary tooling is usually used for the batch production of the adapter plate. Even if the initial positioning structure size and position are accurate, with the extension of the use time, the positioning structure accuracy of the auxiliary tooling will gradually decrease due to wear during long-term use. This not only affects the positioning accuracy of the adapter plate and the pole column, but also causes the positioning effect of the auxiliary tooling not to be continuously maintained. To solve this problem, it is necessary to optimize and improve the prior art. 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 an electrical connector and a battery that can continuously maintain the assembly positioning accuracy.

[0005] To achieve the above purpose and other related purposes, the present utility model provides an electrical connector, including:

[0006] A pole column; and

[0007] An adapter plate integrally formed with the pole column, the adapter plate is provided with two pole ear welding areas, and the two pole ear welding areas are respectively located on both sides of the pole column;

[0008] The adapter plate is provided with a positioning portion for positioning the relative position between the adapter plate and the battery cover plate.

[0009] In an embodiment of the present utility model, at least two positioning portions are provided, and the positioning portion is in the shape of a blind hole or a through hole.

[0010] In an embodiment of the present utility model, any one of the positioning portions is arranged on the edge of the adapter plate and is recessed from the edge of the adapter plate towards the inner side of the adapter plate having the pole column.

[0011] In an embodiment of the present utility model, the positioning portion protrudes from the edge of the adapter plate in a direction away from the pole column.

[0012] In an embodiment of the present utility model, the positioning portion protruding from the edge of the adapter piece is a groove structure.

[0013] In an embodiment of the present utility model, the adapter piece is a rectangular structure, the positioning portion is arranged on the long edge of the rectangular adapter piece, and the two ear welding areas are arranged along the long side direction of the adapter piece.

[0014] In an embodiment of the present utility model, the adapter piece is a rectangular structure, and the positioning portion is arranged in the middle of the edge of the rectangular adapter piece.

[0015] In an embodiment of the present utility model, the pole column is arranged in the center of the rectangular adapter piece, and the two ear welding areas are symmetrically arranged with respect to the pole column.

[0016] In an embodiment of the present utility model, one of the four corners of the rectangular adapter piece has a different shape from the other three corners.

[0017] To achieve the above and other related purposes, the present utility model provides a battery including the electrical connector.

[0018] In summary, by integrally forming the pole column and the adapter piece, the present utility model can eliminate the welding process in traditional batteries, simplify the production process, reduce the manufacturing cost and complexity, reduce connection failures, improve the electrical performance and conduction efficiency, and at the same time reduce the volume and weight of the battery; the adapter piece is designed as a rectangular structure, and the two ear welding areas are located on both sides of the pole column, reducing the current path, decreasing the resistance, and significantly reducing the size and weight, which is beneficial to cost control; the positioning portion is integrated on the adapter piece, improving the assembly accuracy and reliability, reducing the dependence on external tooling, being able to maintain continuous and stable positioning, and ensuring the consistency and reliability of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 Structural schematic diagram of the electrical connector before improvement of the present utility model;

[0021] Figure 2 For Figure 1 Structural schematic diagram of further improvement of the electrical connector;

[0022] Figure 3 Structural schematic diagram of an alternative embodiment of the present utility model;

[0023] Figure 4 Structural schematic diagram of another alternative embodiment of the present utility model;

[0024] Figure 5 Structural schematic diagram of still another alternative embodiment of the present utility model;

[0025] Figure 6 is Figure 5 Structural schematic diagram of the lower surface of the electrical connector of;

[0026] Figure 7 Structural schematic diagram of the positioning connection between the electrical connector and the battery cover plate in an alternative embodiment of the present utility model;

[0027] Figure 8 is Figure 3 or Figure 4 or Figure 5 Structural cross-sectional view of the electrical connector along the long side direction of;

[0028] Element number description: pole 1, adapter piece 2, tab welding area 21, battery cover plate 3, positioning member 31, positioning portion 22, groove structure 221, chamfer 23, pole area 24. Specific embodiments

[0029] The following uses specific specific examples to illustrate the implementation manners 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 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 utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present utility model are for the purpose of describing specific specific implementation manners, rather than for limiting the protection scope of the present utility model. The test methods without specific conditions noted in the following embodiments are usually carried out under conventional conditions or according to the conditions recommended by each manufacturer.

[0030] Please refer to Figures 1 to 8It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions under which the present utility model can be implemented. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0031] When the embodiments give a numerical range, it should be understood that unless otherwise specified in the present utility model, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present utility model, based on the understanding of those skilled in the art of the prior art and the description of the present utility model, can also use any methods, devices, and materials of the prior art similar to or equivalent to those described in the embodiments of the present utility model to implement the present utility model.

[0032] The basic structure of the battery includes:

[0033] 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 terminal 1 of the battery and are electrically connected to electrical equipment through the adapter plate 2; tabs are generally divided into positive tabs and negative tabs, and the materials of the two are different to ensure correct connection to the circuit; positive tabs usually use aluminum materials, while negative tabs use nickel or copper materials; the design and quality of the tabs directly affect the internal resistance and heat dissipation performance of the battery.

[0034] Terminal 1: Terminal 1 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 terminal 1 to generate current. Terminal 1 is usually made of lead, lead alloy, or other chemical materials to meet the requirements of different types of batteries.

[0035] Adapter plate 2: The adapter plate 2 is an important component used to connect the tab of the battery and terminal 1. It is usually made of highly conductive metal materials such as copper or aluminum to ensure that current can flow smoothly from terminal 1 to the tab, while maintaining the stability and safety of the battery.

[0036] Lower plastic: The lower plastic generally uses materials with high temperature resistance and chemical corrosion resistance, such as PP (polypropylene), PE (polyethylene), etc. The lower plastic is located below the battery top cover plate, providing additional structural support and protection. It helps to fix and support the pole column 1 and the adapter piece 2, while reducing the impact of the external environment on the inside of the battery; The lower plastic is usually made of plastic or other non-conductive materials to prevent electrode short circuit or other accidents.

[0037] Please refer to Figure 2 or Figure 3 or Figures 4 - 5 and Figure 8 , The present utility model provides an electrical connector, including a pole column 1; and an adapter piece 2 integrally formed with the pole column 1, the adapter piece 2 is provided with two ear welding areas 21, and the two ear welding areas 21 are respectively located on both sides of the pole column 1;

[0038] The adapter piece 2 is provided with a positioning portion 22 for positioning the relative position of the adapter piece 2 and the battery cover plate 3.

[0039] It should be noted that both the pole column 1 and the adapter piece 2 are conductive materials; The pole column 1 and the adapter piece 2 are integrally formed, for example, by machining, casting, etc. The pole column area 24 is the area where the adapter piece 2 and the pole column 1 are integrally connected. Generally, the pole column 1 is cylindrical and is vertically connected to the adapter piece 2. The ear welding area 21 is used for welding and connecting the ear, for example, by ultrasonic welding or laser welding. The two ear welding areas 21 are respectively located on both sides of the pole column 1, that is, in the axial direction of the pole column 1, the two ear welding areas 21 are always located on both sides of the pole column 1, that is, the pole column 1 is always at the position between the connection lines of the two ear welding areas 21.

[0040] As Figure 1 shown, it is a schematic structural diagram of the electrical connector before improvement in this case. In this figure, the pole column 1 and the adapter piece 2 are welded and connected. The ear welding area 22 is not located on both sides of the pole column 1, but on one side of the pole column 1. There is a problem that the length of the adapter piece 2 is relatively long, resulting in a relatively long current path between the pole column 1 and the ear, and resulting in a relatively large resistance problem; At the same time, the longer adapter piece 2 will make the overall weight of the adapter piece 2 heavier, use more materials, and is not conducive to cost control; As Figure 2 shown, this electrical connector is Figure 1 the improved structure of the electrical connector. Among them, the pole column 1 and the adapter piece 2 of this electrical connector are still welded and connected, and at the same time, there is a lack of a positioning structure, but the volume of the adapter piece 2 of this electrical connector has been significantly reduced compared with before improvement, which is conducive to weight reduction and cost control.

[0041] In this case, as Figure 3The shown electrical connector, by integrally forming the pole 1 and the adapter piece 2, on the one hand, can eliminate the welding process between the pole 1 and the adapter piece 2 in the traditional battery, which not only simplifies the production process but also reduces the manufacturing cost and complexity. Reducing the welding points also reduces potential connection failures and instabilities; at the same time, the integrated design can reduce the contact resistance in current conduction and improve the overall electrical performance of the battery; the integration of the pole 1 and the adapter piece 2 avoids the resistance loss caused by multi-layer connections, helps to improve the conductive efficiency of the battery, and ensures stable current transmission; the integrated design can provide a better heat conduction path and helps to dissipate heat more effectively; in addition, the integral forming helps to reduce additional connection materials and components, thereby reducing the volume and weight of the battery and further reducing the production cost. In this case, by designing the adapter piece 2 as a rectangular structure and making the two ear welding areas 21 located on both sides of the pole 1 respectively, the center distance of the ears is made equal to or close to the center distance of the pole 1, which helps to reduce the current path between the pole 1 and the ears, thereby helping to reduce the resistance and greatly reducing the size and weight of the adapter piece 2, which helps to control the cost. It should be understood that the adapter piece 2 being rectangular in this application means a structure that is approximately rectangular rather than a strictly rectangular shape.

[0042] As Figure 3 shown, the adapter piece 2 is provided with a positioning portion 22 for positioning the relative position of the adapter piece 2 and the battery cover 3, which can improve the accuracy and reliability of battery assembly. The positioning portion 22 is directly integrated on the adapter piece 2, which can effectively reduce the dependence on external auxiliary tooling and reduce the positioning error caused by the accuracy problem of the auxiliary tooling. In this way, the positioning portion 22 can not only ensure the relative position accuracy between the adapter piece 2 and the battery cover 3 during the assembly process, but also maintain a stable positioning effect during the production process, reducing the risk of positioning accuracy decline caused by long-term use, such as the positioning error problem that may be brought by the wear of the positioning structure of the auxiliary tooling during long-term use, thereby ensuring the consistency and reliability in mass production. By optimizing the structural design of the adapter piece 2, the positioning portion 22 not only improves the assembly quality of the battery but also enhances the overall performance and service life of the battery product.

[0043] As Figure 3 shown, as an optional embodiment of this case, the positioning portion 22 is provided with at least two, and the positioning portion 22 is in the shape of a blind hole or a through hole.

[0044] It should be noted that providing multiple positioning portions 22 can offer multiple positioning points, thereby enhancing the stability and positioning accuracy of the relative positions between the adapter piece 2 and the battery cover plate 3. The multiple positioning points contribute to better controlling and calibrating the possible deviations during the assembly process. The blind hole or through hole design facilitates easier alignment and fixation of the adapter piece 2 during assembly and maintenance, improving the assembly efficiency and also facilitating inspection and replacement. Meanwhile, designing the positioning portion 22 as a blind hole or through hole is beneficial to the processing and forming of the positioning portion 22. Preferably, the positioning portion 22 is in the shape of a through hole, which is conducive to reducing the weight of the adapter piece 2 and the amount of material required, and thus beneficial to reducing the overall weight of the battery and the cost.

[0045] As Figure 4 shown, as an optional embodiment of this case, the positioning method of this embodiment is different from the above-mentioned positioning method. Specifically: any one of the positioning portions 22 is arranged on the edge of the adapter piece 2 and is recessed from the edge of the adapter piece 2 towards the inner side of the adapter piece 2 having the pole 1.

[0046] It should be noted that the positioning portion 22 recessed from the edge of the adapter piece 2 towards the inner side of the adapter piece 2 having the pole 1 is in a U shape, or circular arc shape, or square groove shape, or other shapes that meet the positioning requirements. The positioning portion 22 is arranged on the edge of the adapter piece 2, which can maximize the utilization efficiency of the surface of the adapter piece 2, leaving more space for the pole 1 and other key components. This layout helps to optimize the internal structure configuration of the battery, reduce the interference between components, and improve the stability of the battery performance. At the same time, the positioning portion 22 is recessed from the edge of the adapter piece 2 towards the inner side of the adapter piece 2 having the pole 1, which is beneficial to reducing the weight and material usage of the adapter piece 2, and also beneficial to the processing and forming of the positioning portion 22 itself, and thus beneficial to reducing the weight and cost control of the battery. The positioning portion 22 arranged on the edge of the adapter piece 2 is also beneficial to the assembly of the electrical connector, and can improve the positioning efficiency during assembly, because the positioning of two recessed structures is more visual and more convenient to operate than the positioning of two holes.

[0047] As Figures 5 - 6 shown, as an optional embodiment of this case, the positioning method of this embodiment is different from the above-mentioned positioning method. Specifically: the positioning portion 22 protrudes from the edge of the adapter piece 2 in a direction away from the pole 1; through this design, a more intuitive and reliable positioning reference can be provided during the assembly process, reducing the positioning error, which is beneficial to improving the consistency and accuracy of the assembly. Especially in large-scale production, it can significantly reduce the generation of unqualified products. In particular, the protruding positioning portion 22 provides a clear visual and physical reference for the assembly, which helps to quickly and accurately align the corresponding components. It can not only reduce the assembly time and improve the production efficiency, but also ensure that the pole 1 does not shift during the assembly process, thereby improving the consistency and reliability of the battery.

[0048] As shown Figures 5 - 6 in the figure, as an optional embodiment of this case, the positioning portion 22 protruding from the edge of the adapter piece 2 is a groove structure 221. It should be noted that through the design of this groove structure 221, the stability of positioning can be further enhanced; the groove structure 221 can be a rectangular groove, an arc groove or a U-shaped groove. It should be understood that the shape of the groove structure 221 should be preferably matched with the shape of the positioning structure provided on the lower plastic of the battery cover 3 to improve the positioning accuracy; for example, as shown Figure 7 in the figure, the battery cover 3 is provided with a positioning member 31 that is matched and limited with the positioning portion 22. The positioning member 31 can be a cylindrical structure, where Figure 7 it is only used to show the cooperation relationship between the positioning portion 22 and the positioning member 31.

[0049] As shown Figure 4 or Figure 5 in the figure, as an optional embodiment of this case, the adapter piece 2 is a rectangular structure, the positioning portion 22 is arranged on the long edge of the rectangular adapter piece 2, and the two ear welding areas 21 are arranged along the long side direction of the adapter piece 2.

[0050] It should be noted that the rectangular structure enables the adapter piece 2 to have good mechanical strength and stability, and can withstand the stress and vibration that may occur during assembly and use. The positioning portion 22 is arranged on the long edge, providing more support points and a larger contact area, which helps to improve the bonding strength and positioning accuracy between the adapter piece 2 and the battery cover 3. At the same time, the ear welding areas 21 are arranged along the long side direction, which can optimize the welding process, ensure that the welding points are more evenly distributed, reduce the concentration of welding stress, thereby improving the welding quality and reliability. This layout can also effectively utilize the long side space, simplify the welding operation process, improve the welding efficiency and the overall production capacity of the production line. In addition, the design of the rectangular adapter piece 2 makes the component layout more compact, improves the space utilization rate of the adapter piece 2, and helps the battery to achieve a smaller volume and a higher energy density.

[0051] As shown Figure 4 or Figure 5As shown, as an alternative embodiment of this case, the adapter piece 2 has a rectangular structure, and the positioning portion 22 is disposed in the middle of the edge of the rectangular adapter piece 2. It should be noted that the rectangular structure provides good mechanical strength and stability, and can effectively withstand the stress that may occur during assembly and use; the positioning portion 22 is disposed in the middle of the edge of the adapter piece 2, which can provide accurate positioning during installation, so that the adapter piece 2 can be more stably fixed in the battery, ensuring the accuracy and consistency of the assembly; the positioning design in the middle of the edge effectively reduces the risk of external interference and damage that the positioning portion 22 may receive, while maintaining the integrity of the edge of the adapter piece 2 and avoiding weak points at the corners. At the same time, the positioning portion 22 is located in the middle of the edge of the adapter piece 2, so it is relatively close to the terminal area 24, maximizing the effective surface area of the adapter piece 2 and leaving more space for other key components. For example, more space is reserved for the tab welding area 21, and structural interference between the subsequent welded tabs and other structures is eliminated.

[0052] As Figure 3 or Figure 4 or Figure 5 and Figure 8 As shown, as an alternative embodiment of this case, the terminal 1 is disposed at the center of the rectangular adapter piece 2, and the two tab welding areas 21 are symmetrically arranged with respect to the terminal 1.

[0053] It should be noted that the central design of the terminal 1 can balance the stress of the adapter piece 2, reduce stress concentration caused by eccentric loads, and thus improve the stability and durability of the structure. The symmetrically arranged tab welding areas 21 ensure the uniformity of the distribution of the welding points, which helps to optimize the welding process, reduce welding stress concentration, and improve the welding quality and reliability. In addition, the symmetrical layout of the tab welding areas 21 makes the current distribution more balanced, reduces resistance and heat generation, and improves the overall efficiency and safety of the battery system. The position of the central terminal 1 optimizes the space utilization, makes the structure of the adapter piece 2 more compact, and helps to improve the energy density of the battery.

[0054] As Figure 1 As shown, as an alternative embodiment of this case, one of the four corners of the rectangular adapter piece 2 has a different shape from the other three corners.

[0055] Specifically, one of the four corners of the adapter piece 2 is a cut corner 23, and the other three corners are arc chamfer structures. The combination of the cut corner 23 and the arc chamfers can provide obvious visual and tactile differences, enabling users or automated assembly systems to easily identify the correct orientation of the adapter piece 2. This intuitive identification can reduce the likelihood of assembly errors; through the asymmetric design, especially the introduction of the cut corner 23, it can be ensured that the adapter piece 2 can only be installed in the correct orientation during assembly. This restrictive design helps to prevent assemblers or systems from installing the adapter piece 2 in the wrong direction, thereby improving the assembly efficiency and quality. The selection of the cut corner 23 and the arc chamfer structures may also be related to the specific functions of the adapter piece 2. For example, the cut corner 23 can be used for specific mechanical locking or alignment functions, while the arc chamfers can provide a comfortable feel or compatibility with other components.

[0056] To achieve the above and other related purposes, the present utility model provides a battery cover assembly, including the electrical connector described above, so that the battery cover assembly having this electrical connector is also within the protection scope of this case.

[0057] To achieve the above and other related purposes, the present utility model provides a battery, including the electrical connector described above, so that the battery having this electrical connector is also within the protection scope of this case.

[0058] To achieve the above and other related purposes, the present utility model provides an electronic device, including the battery described above, so that the electronic device having this battery is also within the protection scope of this case.

[0059] In summary, the present utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and practical significance.

[0060] 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 ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. An electrical connector, characterized in that: include: Pole; as well as An adapter formed integrally with the pole, the adapter being provided with two pole lug welding areas, the two pole lug welding areas being respectively located on two sides of the pole; The adapter plate is provided with a positioning portion for positioning the relative position of the adapter plate and the battery cover plate.

2. The electrical connector according to claim 1, characterized in that: At least two positioning parts are provided, and the positioning parts are in the shape of blind holes or through holes.

3. The electrical connector according to claim 1, characterized in that: Any of the positioning portions is arranged at the edge of the adapter plate, and is recessed from the edge of the adapter plate toward the inner side of the adapter plate having the pole.

4. The electrical connector according to claim 1, characterized in that: The positioning portion is protruded from the edge of the adapter plate in a direction away from the pole.

5. The electrical connector according to claim 4, characterized in that: The positioning portion protruding from the edge of the adapter sheet is a groove structure.

6. The electrical connector according to claim 1, characterized in that: The adapter plate is a rectangular structure, the positioning portion is arranged on the long edge of the rectangular adapter plate, and the two tab welding areas are arranged along the long side direction of the adapter plate.

7. The electrical connector according to claim 1, characterized in that: The adapter sheet is a rectangular structure, and the positioning portion is arranged in the middle of the edge of the rectangular adapter sheet.

8. The electrical connector according to claim 1, characterized in that: The pole is arranged at the center of the rectangular adapter plate, and the two pole lug welding areas are symmetrically arranged about the pole.

9. The electrical connector according to claim 1, characterized in that: The shape of one of the four corners of the rectangular adapter plate is different from the shape of the other three triangles.

10. A battery comprising the electrical connector according to any one of claims 1 to 9.

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