Connection terminal and battery pack

Abstract

The utility model provides a connecting terminal and a battery pack, and belongs to the technical field of batteries, the connecting terminal comprises a first terminal and at least two second terminals, the first terminal is internally provided with an accommodating cavity and is provided with a port, each second terminal comprises a first section and a second section, the first section can be electrically connected with a battery monomer, and the second section can be electrically connected with the battery monomer. The first terminal can be close to the second terminal along the first direction, so that the second section can be inserted into the accommodating cavity through the port and is electrically connected with the first terminal, two adjacent battery monomers are electrically connected through the first terminal, and the first terminal can be far away from the second terminal along the first direction; when the battery monomers need to be replaced or maintained, the first terminal is removed from the second terminal, the electric connection between the two battery monomers can be cut off, and the battery monomers can be moved out of the battery pack, so that the replacement or maintenance of the battery monomers is facilitated, the maintenance cost is reduced, and the maintenance efficiency is improved. The service life of the battery pack is prolonged.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, specifically to a connection terminal and a battery pack. Background Technology

[0002] In existing battery packs, adjacent battery cells are electrically connected via a busbar. Specifically, the two ends of the busbar are welded and fixed to the terminals of the adjacent battery cells to achieve electrical connection between the two adjacent battery cells. However, the two battery cells connected by the busbar cannot be disassembled, resulting in high replacement and maintenance costs for the battery cells. Utility Model Content

[0003] This application provides a connection terminal and a battery pack, which can solve the problem of high maintenance costs caused by the inability to disassemble adjacent battery cells connected by an aluminum bar in existing battery packs.

[0004] A first aspect of this application provides a connection terminal, comprising: a first terminal having a receiving cavity inside, the first terminal having a port communicating with the receiving cavity on one side along a first direction; at least two second terminals spaced apart along a second direction, each second terminal including a first segment and a second segment connected along the second direction, the first segment being electrically connected to a battery cell, the second segment being able to be inserted into the receiving cavity through the port and electrically connected to the first terminal, the first direction intersecting the second direction; the first terminal being able to approach the second terminal along the first direction, such that the second segment is inserted into the receiving cavity through the port; the first terminal being able to move away from the second terminal along the first direction, such that the second segment is removed from the receiving cavity through the port.

[0005] A second aspect of this application provides a battery pack, comprising: a connection terminal as described above; at least two battery cells spaced apart along a second direction, wherein one end of each battery cell is provided with a terminal post along a third direction; a first segment of the second terminal is connected to the terminal post, and the second segment is inserted into a receiving cavity of the first terminal and electrically connected to the first terminal; the first terminal is capable of moving away from the second terminal along a first direction, such that the second segment is removed from the receiving cavity via the port; the first direction, the second direction, and the third direction intersect each other.

[0006] The beneficial effects of this application are that it provides a connection terminal and a battery pack having the connection terminal. The connection terminal includes a first terminal and at least two second terminals. The first terminal has a receiving cavity inside and a port communicating with the receiving cavity on one side along a first direction. The second terminal includes a first segment and a second segment connected along a second direction. The first segment can be electrically connected to a battery cell, and the two second terminals are spaced apart, so that the two second terminals are respectively electrically connected to two adjacent battery cells. The first terminal can move closer to the second terminal along the first direction, so that the second segments of the two second terminals can be inserted into the receiving cavity through the port and respectively electrically connected to the first terminal, thereby enabling two adjacent battery cells to be electrically connected through the first terminal. The first terminal can move away from the second terminal along the first direction, so that the second segments of the two second terminals can be removed out of the receiving cavity through the port. Therefore, when it is necessary to replace or repair the battery cell, it is only necessary to remove the first terminal from the second terminal to separate the first terminal from the second terminal, thereby disconnecting the electrical connection between the two adjacent battery cells and removing the battery cell from the battery pack. This facilitates the subsequent replacement or repair of the battery cell, reduces maintenance costs, and improves the service life of the battery pack. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the first angle of the connection terminal provided in the embodiment of this application;

[0009] Figure 2 This is a schematic diagram of the second angle of the connection terminal provided in the embodiment of this application;

[0010] Figure 3 yes Figure 1 Sectional view along axis AA;

[0011] Figure 4 This is a schematic diagram of the structure of the first angle of the first terminal in the connection terminal provided in the embodiment of this application;

[0012] Figure 5 This is a schematic diagram of the second angle of the first terminal in the connection terminal provided in the embodiment of this application;

[0013] Figure 6 yes Figure 4 BB-direction sectional view;

[0014] Figure 7This is a schematic diagram of the structure of the connector in the connection terminal provided in the embodiment of this application;

[0015] Figure 8 This is a schematic diagram of the structure of the second terminal in the connection terminal provided in the embodiment of this application;

[0016] Figure 9 This is a schematic diagram of the combined structure of a battery cell and a second terminal in a battery pack provided in an embodiment of this application;

[0017] Figure 10 This is a schematic diagram of the combined structure of the connecting terminals and battery cells in the battery pack provided in the embodiments of this application;

[0018] Figure 11 yes Figure 10 A magnified structural diagram at point C.

[0019] Explanation of reference numerals in the attached figures:

[0020] 100. Connecting terminals;

[0021] 10. First terminal; 101. Receiving cavity; 102. Port; 1021. First port; 1022. Second port; 11. First connecting part; 110. Through hole; 12. End plate; 121. First end plate; 122. Second end plate; 13. Second connecting part; 14. Limiting part; 15. Protrusion.

[0022] 20. Second terminal; 21. First section; 22. Second section; 220. Gap; 221. Groove; 23. Connecting section;

[0023] 30. Connector; 31. Third connecting part; 32. Elastic part;

[0024] 200, battery cell; 210, terminal post;

[0025] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0027] In some embodiments of this application, a connection terminal 100 is provided, as shown in the reference. Figures 1 to 11 The connecting terminal 100 includes a first terminal 10 and at least two second terminals 20. The connecting terminal 100 has intersecting first directions X, second directions Y, and third directions Z, as detailed below. Figures 1 to 11 In the embodiment shown, the first direction X, the second direction Y, and the third direction Z are all orthogonal to each other.

[0028] Reference Figures 3-5 The first terminal 10 has a receiving cavity 101 inside, as shown in the reference. Figure 1 as well as Figures 3-5 The first terminal 10 has a port 102 communicating with the receiving cavity 101 on one side along the first direction X.

[0029] Reference Figures 1-3 as well as Figures 8-11 The second terminal 20 includes a first segment 21 and a second segment 22 connected along the second direction Y, as shown in the figure. Figure 9 and Figure 10 The first segment 21 can be electrically connected to the battery cell 200, and the second segment 22 can be inserted into the receiving cavity 101 through the port 102 and electrically connected to the first terminal 10.

[0030] The first terminal 10 can approach the second terminal 20 along the first direction X, so that the second segment 22 is inserted into the receiving cavity 101 via the port 102; the first terminal 10 can also move away from the second terminal 20 along the first direction X, so that the second segment 22 is removed from the receiving cavity 101 via the port 102.

[0031] In existing battery packs, adjacent battery cells are electrically connected via aluminum busbars. Specifically, the two ends of the aluminum busbar are fixed to the terminals of adjacent battery cells using laser welding to achieve electrical connection between the two adjacent battery cells, such as series or parallel connection. However, because the aluminum busbar is fixedly connected to the battery cell, the two battery cells connected by the aluminum busbar cannot be disassembled. When a battery cell malfunctions and needs repair or replacement, the faulty battery cell cannot be removed from the battery pack individually, resulting in high replacement and repair costs for the battery cells and affecting the lifespan and safety of the battery pack.

[0032] The connection terminal 100 provided in this application embodiment includes a first terminal 10 and at least two second terminals 20. The first terminal 10 has a receiving cavity 101 inside, and a port 102 communicating with the receiving cavity 101 is opened on one side of the first terminal 10 along the first direction X. The second terminal 20 includes a first segment 21 and a second segment 22 connected along the second direction Y. The first segment 21 can be electrically connected to the battery cell 200, and the second segment 22 can be inserted into the receiving cavity 101 through the port 102 and electrically connected to the first terminal 10. The first terminal 10 can move closer to the second terminal 20 along the first direction X, so that the second segment 22 in the second terminal 20 can be inserted into the receiving cavity 101 through the port 102, thereby making the second segment 22 electrically connected to the first terminal 10. The first terminal 10 can also move away from the second terminal 20 along the first direction X, so that the second segment 22 can be removed from the receiving cavity 101 through the port 102.

[0033] In the battery pack assembly process, the structural design of at least two second terminals 20 spaced apart along the second direction Y allows the first terminal 10 to approach the second terminal 20 along the first direction X, enabling the second segments 22 of the two second terminals 20 on adjacent battery cells 200 to be inserted into the receiving cavity 101 via the port 102 and electrically connected to the first terminal 10 respectively. This allows an electrical connection to be formed between two adjacent battery cells 200 along the second direction Y through the cooperation of the first terminal 10 and the second terminal 20. Compared to the existing battery pack structure where two battery cells are fixedly connected by an aluminum bar, when one battery cell 200 malfunctions and needs repair or replacement, the first terminal 10 moves away from the second terminal 20 along the first direction X, allowing the second segments 22 to be removed from the receiving cavity 101 via the port 102, thus disconnecting the electrical connection between the two adjacent battery cells 200. Simultaneously, the connection between the two second terminals 20 is disconnected, allowing the faulty battery cell 200 to be individually removed from the battery pack for repair or replacement. After repair, the repaired battery cell 200 with the second terminal 20 can be returned to its original position. The first terminal 10 is then moved along the first direction X towards the two adjacent second terminals 20, allowing the two adjacent second segments 22 to be inserted into the receiving cavity 101 via ports 102, thus achieving an electrical connection between the two connected battery cells 200. Alternatively, after replacing a battery cell 200, the second terminal 20 can be connected to the replaced battery cell 200, and then the first terminal 10 is moved along the first direction X towards the two adjacent second terminals 20, allowing the two adjacent second segments 22 to be inserted into the receiving cavity 101 via ports 102, thus achieving an electrical connection between the two connected battery cells 200. This effectively improves the operational safety of battery pack assembly and subsequent repairs, reduces repair costs, increases repair efficiency, and enhances the safety and lifespan of the battery pack.

[0034] Among them, reference Figures 1-3 as well as Figures 8-11 The second terminal 20 extends along the second direction Y, which is parallel to the length direction of the second terminal 20. The first direction X is parallel to the width direction of the second terminal 20, and the third direction Z is parallel to the thickness direction of the second terminal 20.

[0035] In some embodiments, refer to Figures 1-6 as well as Figure 11 The first terminal 10 includes a first connecting portion 11 and two end plates 12. The two end plates 12 are spaced apart along a third direction Z. The first connecting portion 11 extends along the third direction Z. The two end plates 12 are connected on one side along a first direction X through the first connecting portion 11, and form a port 102 on the other side. Specifically, refer to... Figures 1-6 as well as Figure 11The two end plates 12 include a first end plate 121 and a second end plate 122 spaced apart along a third direction Z. A first connecting portion 11 is disposed on the same side of the first end plate 121 and the second end plate 122 along a first direction X. One end of the first connecting portion 11 along the third direction Z is connected to the first end plate 121, and the other end is connected to the second end plate 122, forming a C-shaped cross-sectional structure of the first terminal 10. The port 102 is the opening of this C-shaped cross-sectional structure. The design of the first connecting portion 11 and the two end plates 12, while forming a port 102 communicating with the inside of the receiving cavity 101, reduces the manufacturing difficulty of the first terminal 10. The first terminal 10 can be formed by continuous die stamping, reducing the manufacturing cost of the first terminal 10 and improving manufacturing efficiency. Moreover, the C-shaped cross-sectional structure can improve the convenience of inserting or removing the second segment 22 into or out of the receiving cavity 101 through the port 102, thereby improving the convenience of assembly or maintenance.

[0036] In some embodiments, refer to Figure 1 , Figures 4-6 as well as Figure 11 The first terminal 10 also includes a second connecting portion 13, see reference. Figures 1-2 as well as Figures 10-11 One first terminal 10 corresponds to two second terminals 20, as shown in the reference. Figure 1 and Figure 9 Along the second direction Y, there is a gap 220 between the second segments 22 of the two second terminals 20, as shown in the reference. Figure 1 , Figures 4-6 as well as Figure 11 The second connecting portion 13 extends along a third direction Z, and the two end plates 12 are respectively connected to the second connecting portion 13 on the side opposite to the first connecting portion 11 along the first direction X. Specifically, one end of the second connecting portion 13 along the third direction Z is connected to the first end plate 121, and the other end is connected to the second end plate 122. The second connecting portion 13 is movable within the gap 220 along the first direction X. Figures 1-4In the illustrated embodiment, the second connecting portion 13 divides the port 102 into a first port 1021 and a second port 1022 spaced apart along the first direction X. The first terminal 10 approaches two adjacent second terminals 20 along the first direction X. One of the two second segments 22 of the two second terminals 20 is inserted into the receiving cavity 101 via the first port 1021, and the other is inserted into the receiving cavity 101 via the second port 1022. The second connecting portion 13 then guides the first terminal 10 as it approaches the two adjacent second terminals 20 along the first direction X. That is, as the first terminal 10 approaches the second terminal 20 along the first direction X, the second connecting portion 13 is positioned at the corresponding gap 22. 0, and by moving the second connecting part 13 in the gap 220, it is possible to ensure that one second segment 22 is smoothly inserted into the receiving cavity 101 via the first port 1021, and the other second segment 22 is smoothly inserted into the receiving cavity 101 via the second port 1022, thereby improving the assembly accuracy and efficiency between the first terminal 10 and the second terminal 20. Conversely, if the first terminal 10 moves away from the second terminal 20 along the first direction X, by moving the second connecting part 13 in the gap 220, it is possible to ensure that the first terminal 10 is smoothly pulled out from between the two second segments 22 along the first direction X, thereby improving the separation stability and separation efficiency between the first terminal 10 and the second terminal 20.

[0037] In some embodiments, refer to Figure 2 as well as Figures 4-5 The first terminal 10 also includes a limiting portion 14, which is disposed on one side of the two end plates 12 adjacent to the first connecting portion 11 along the first direction X. The limiting portion 14 extends along the third direction Z and is connected to at least one end plate 12. (Refer to...) Figure 2 , Figure 8 and Figure 9 The second segment 22 has a groove 221 on at least one of its two opposite sides along the second direction Y, as shown in the reference. Figure 2 The second segment 22 is inserted into the receiving cavity 101, and the limiting part 14 is embedded in the groove 221. After the second segment 22 is inserted into the receiving cavity 101 of the first terminal 10, the cooperation design between the limiting part 14 and the groove 221 restricts the movement of the second segment 22 along the second direction Y, reducing the risk of movement after the second terminal 20 and the first terminal 10 are assembled, thereby reducing the risk of short circuit caused by the second terminal 20 contacting other components in the battery pack, and improving the safety and stability of the battery pack.

[0038] In some embodiments, refer to Figure 2 as well as Figures 4-5One end of the limiting part 14 along the third direction Z is connected to the first end plate 121, and the other end is suspended. In some other implementations, one end of the limiting part 14 along the third direction Z is connected to the second end plate 122, and the other end is suspended. In some other implementations, one end of the limiting part 14 along the third direction Z is connected to the second end plate 122, and the other end is connected to the first end plate 121. The specific implementation can be selected according to the actual usage requirements.

[0039] In some embodiments, refer to Figure 2 as well as Figures 4-5 The first connecting part 11 has two through holes 110 communicating with the receiving cavity 101, spaced apart along the second direction Y. There are also two limiting parts 14, one in each through hole 110. The width of the limiting part 14 along the second direction Y is less than the distance between the two groove walls of the groove 221 along the second direction Y, allowing the second segment 22 to move within the receiving cavity 101 along the second direction Y. In other implementations, the width of the limiting part 14 along the second direction Y is equal to the distance between the two groove walls of the groove 221 along the second direction Y, forming a snap-fit ​​connection between the limiting part 14 and the groove 221, thereby fixing the second segment 22 within the receiving cavity 101. The specific implementation can be selected according to actual usage requirements.

[0040] In some embodiments, refer to Figures 1-2 , Figures 8-9 as well as Figure 11 The second terminal 20 also includes a connecting segment 23, which extends along the third direction Z. One end of the connecting segment 23 along the third direction Z is connected to the first segment 21, and the other end is connected to the second segment 22. That is, the first segment 21 is connected to the second segment 22 through the connecting segment 23. The setting of the connecting segment 23 makes the first segment 21 and the second segment 22 form a height difference in the third direction Z. As a result, after the second terminal 20 and the battery cell 200 are assembled, there is a gap between the second segment 22 and the battery cell 200 in the third direction Z. When the first terminal 10 moves closer to or away from the second terminal 20 along the first direction X, it ensures that the second segment 22 can be smoothly inserted into or removed from the receiving cavity 101 through the port 102. It also avoids the risk of short circuit caused by the first terminal 10 contacting the battery cell 200 during the movement, thereby improving the efficiency of the assembly or disassembly of the first terminal 10 and the second terminal 20.

[0041] In some embodiments, refer to Figures 3-7 The connecting terminal 100 also includes a connector 30, see reference. Figures 3-5 The connector 30 is disposed in the receiving cavity 101 and is disposed on at least one end plate 12. The connector 30 is electrically connected to the end plate 12. Figure 3The second segment 22 is inserted into the receiving cavity 101, and the end plate 12 is electrically connected to the second segment 22 through the connector 30. The connector 30 ensures the stability of the electrical connection between the first terminal 10 and the second terminal 20, thereby ensuring the stability of the electrical connection between the two battery cells 200.

[0042] In some embodiments, refer to Figures 3-6 Both the first end plate 121 and the second end plate 122 are provided with connectors 30. Specifically, the first end plate 121 has a connector 30 on the side facing the second end plate 122 along the third direction Z, and the second end plate 122 has a connector 30 on the side facing the first end plate 121 along the third direction Z, thereby ensuring the stability of the electrical connection between the first terminal 10 and the second terminal 20. In some other implementations, the connector 30 is only provided on the side of the first end plate 121 facing the second end plate 122, or the connector 30 is only provided on the side of the second end plate 122 facing the first end plate 121, which can be rotated according to the actual use.

[0043] In some embodiments, the number of connectors 30 is at least two, and the at least two connectors 30 are arranged at intervals along the second direction Y. One connector 30 is electrically connected to a second segment 22, specifically as follows: Figures 3-6 In the embodiment shown, two connectors 30 are respectively provided on the first end plate 121 and the second end plate 122. The two connectors 30 on the first end plate 121 are spaced apart along the second direction Y, and the two connectors 30 on the second end plate 122 are spaced apart along the second direction Y. The four connectors 30 form two groups spaced apart along the second direction Y. Each group includes two connectors 30 that are arranged opposite each other along the third direction Z. One group is electrically connected to the second segment 22 that extends into the receiving cavity 101 from the first port 1021, and the other group is electrically connected to the second segment 22 that extends into the receiving cavity 101 from the second port 1022.

[0044] In some embodiments, refer to Figures 3-6 The connector 30 includes a third connecting portion 31 and an elastic portion 32. The third connecting portion 31 is disposed on the end plate 12 and electrically connected to the end plate 12. One end of the elastic portion 32 is connected to the third connecting portion 31, and the other end is suspended. The second segment 22 is inserted into the receiving cavity 101, and the elastic portion 32 abuts against the second segment 22. Specifically, as shown... Figures 3-6In the embodiment shown, the third connecting part 31 is plate-shaped and extends along the second direction Y. The elastic part 32 extends along the first direction X. One end of the elastic part 32 along the first direction X is connected to the third connecting part 31, and the other end is suspended. The second segment 22 is inserted into the receiving cavity 101. The second segment 22 and the elastic part 32 abut against each other along the third direction Z. The elastic part 32 forms an elastic support for the second segment 22, thereby ensuring the connection stability between the first terminal 10 and the second terminal 20. Moreover, the support of the elastic part 32 can ensure the assembly stability of the second segment 22 in the receiving cavity 101 and reduce the risk of the second segment 22 moving around in the receiving cavity 101.

[0045] In some embodiments, the elastic part 32 is a spring, and the third connecting part 31 is riveted to the end plate 12. In other implementations, the third connecting part 31 can be fixed to the end plate 12 by welding (e.g., laser welding) or by an assembly structure.

[0046] In some embodiments, the second terminal 20 is made of aluminum, the connector 30 is made of high-conductivity copper stamping, and multiple sets of contacts are provided on the elastic part 32. After the second terminal 20 and the first terminal 10 are assembled and paired, these contacts on the elastic part 32 abut against the second segment 22 to realize the electrical connection between the second terminal 20 and the first terminal 10.

[0047] In some embodiments, refer to Figures 4-6 Along the third direction Z, a plurality of protrusions 15 are provided on the side of one end plate 12 facing the other end plate 12. The plurality of protrusions 15 surround the connector 30 in the circumferential direction of the connector 30. The protrusions 15 can limit the installation of the connector 30 on the end plate 12 and ensure the installation stability of the connector 30 on the end plate 12.

[0048] In some embodiments of this application, a battery pack is also provided, as shown in the reference. Figures 9-11 The battery pack includes the connection terminal 100 as described above and at least two battery cells 200.

[0049] Reference Figures 9-11 At least two battery cells 200 are spaced apart along a second direction Y. One end of each battery cell 200 along a third direction Z is provided with a terminal post 210. The first segment 21 of the second terminal 20 is electrically connected to the terminal post 210, and the second segment 22 is inserted into the receiving cavity 101 of the first terminal 10 and electrically connected to the first terminal 10. The first terminal 10 can move away from the second terminal 20 along a first direction X, so that the second segment 22 can be removed from the receiving cavity 101 through the port 102.

[0050] During the battery pack assembly process, the first terminal 10 approaches the second terminal 20 along the first direction X, so that the second segments 22 of the two second terminals 20 on the two adjacent battery cells 200 can be inserted into the receiving cavity 101 through the port 102 and electrically connected to the first terminal 10 respectively, thereby forming an electrical connection between the two adjacent battery cells 200 along the second direction Y through the cooperation of the first terminal 10 and the second terminal 20.

[0051] When one of the battery cells 200 malfunctions and needs repair or replacement, the second segment 22 is moved away from the receiving cavity 101 via the port 102 by moving the first terminal 10 away from the second terminal 20 in the first direction X. At the same time as disconnecting the electrical connection between the two adjacent battery cells 200, the connection between the two second terminals 20 is also disconnected, so that the malfunctioning battery cell 200 can be taken out of the battery pack for repair or replacement.

[0052] After the repair is completed, the repaired battery cell 200 with the second terminal 20 can be put back into its original position. The first terminal 10 is brought close to the two adjacent second terminals 20 along the first direction X, so that the two adjacent second segments 22 are respectively inserted into the receiving cavity 101 through the port 102, thereby realizing the electrical connection between the two connected battery cells 200.

[0053] After replacing the battery cell 200, a second terminal 20 can be connected to the replaced battery cell 200. Then, the first terminal 10 is moved along the first direction X towards two adjacent second terminals 20, so that the two adjacent second segments 22 are respectively inserted into the receiving cavity 101 through the port 102, realizing the electrical connection between the two connected battery cells 200. This effectively improves the operational safety of battery pack assembly and subsequent maintenance, reduces maintenance costs, improves maintenance efficiency, and enhances the safety and service life of the battery pack.

[0054] The foregoing has provided a detailed description of a connection terminal and battery pack provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A connection terminal characterized by comprising: The application relates to a battery terminal. The battery terminal comprises: a first terminal (10) internally provided with a receiving cavity (101), the first terminal (10) being provided with a port (102) communicating with the receiving cavity (101) on one side along a first direction (X); at least two second terminals (20) arranged at intervals along a second direction (Y), the second terminal (20) comprising a first segment (21) and a second segment (22) connected along the second direction (Y), the first segment (21) being capable of being electrically connected with a battery monomer (200), and the second segment (22) being capable of being inserted into the receiving cavity (101) through the port (102) and being electrically connected with the first terminal (10), the first direction (X) intersecting the second direction (Y); the first terminal (10) is capable of moving towards the second terminal (20) along the first direction (X), so that the second segment (22) is inserted into the receiving cavity (101) through the port (102); 2. The connecting terminal according to claim 1, wherein the first terminal (10) is capable of moving away from the second terminal (20) along the first direction (X), so that the second segment (22) is removed from the receiving cavity (101) through the port (102). The first terminal (10) comprises a first connecting part (11) and two end plates (12); the two end plates (12) are arranged at intervals along a third direction (Z), the third direction (Z), the first direction (X) and the second direction (Y) intersecting each other in pairs; 3. The connecting terminal according to claim 2, wherein the first connecting part (11) extends along the third direction (Z), and the two end plates (12) are connected through the first connecting part (11) on one side along the first direction (X) and form the port (102) on the other side. The first terminal (10) further comprises a second connecting part (13); one first terminal (10) corresponds to two second terminals (20) in number, and there is a gap (220) between the second segments (22) of the two second terminals (20) along the second direction (Y); the second connecting part (13) extends along the third direction (Z), and the two end plates (12) are respectively connected with the second connecting part (13) on one side away from the first connecting part (11) along the first direction (X); 4. The connecting terminal according to claim 2, wherein the second connecting part (13) is capable of moving in the gap (220) along the first direction (X). The first terminal (10) further comprises a limiting part (14) arranged on one side adjacent to the first connecting part (11) of the two end plates (12) along the first direction (X), the limiting part (14) extending along the third direction (Z), and the limiting part (14) is connected with at least one end plate (12); the second segment (22) is provided with a groove (221) on at least one of opposite sides along the second direction (Y), the second segment (22) is inserted into the receiving cavity (101), and the limiting part (14) is embedded in the groove (221).

5. The connecting terminal according to claim 1, wherein The second terminal (20) further comprises a connecting section (23) extending along a third direction (Z), the third direction (Z), the first direction (X) and the second direction (Y) being mutually orthogonal; The connecting section (23) is connected to the first section (21) at one end along the third direction (Z) and connected to the second section (22) at the other end.

6. The connecting terminal according to claim 2, wherein The connecting terminal further comprises a connecting piece (30); The connecting piece (30) is arranged in the accommodating cavity (101), the connecting piece (30) is arranged on at least one of the end plates (12), and the connecting piece (30) is electrically connected to the end plate (12); The second section (22) is inserted into the accommodating cavity (101), and the end plate (12) is electrically connected to the second section (22) through the connecting piece (30).

7. The connecting terminal according to claim 6, wherein The connecting piece (30) comprises a third connecting part (31) and an elastic part (32); The third connecting part (31) is arranged on the end plate (12) and electrically connected to the end plate (12); One end of the elastic part (32) is connected to the third connecting part (31), and the other end is suspended; The second section (22) is inserted into the accommodating cavity (101), and the elastic part (32) abuts against the second section (22).

8. The connecting terminal according to claim 6, wherein The number of the connecting pieces (30) is at least two, and the at least two connecting pieces (30) are arranged at intervals along the second direction (Y), and one connecting piece (30) is electrically connected to one second section (22).

9. The connecting terminal according to claim 6, wherein Along the third direction (Z), a plurality of protrusions (15) are arranged on one side of one end plate (12) facing the other end plate (12), and the plurality of protrusions (15) surround the connecting piece (30) along the circumferential direction of the connecting piece (30).

10. A battery pack, characterized by, Comprise: The connecting terminal according to any one of claims 1-9; At least two battery monomers (200) are arranged at intervals along a second direction (Y), and the battery monomer (200) is provided with a pole (210) at one end along a third direction (Z); The first section (21) of the second terminal (20) is connected to the pole (210), and the second section (22) is inserted into the accommodating cavity (101) of the first terminal (10) and is electrically connected to the first terminal (10); The first terminal (10) can move away from the second terminal (20) along a first direction (X), so that the second section (22) is removed from the accommodating cavity (101) through the port (102); The first direction (X), the second direction (Y) and the third direction (Z) are mutually orthogonal.

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