Connection, electrical connection assembly and device for electrical connection and management within a battery pack

Abstract

The application discloses a connecting piece, an electric connecting assembly and a device for electric connection and management in a battery pack. The connecting piece comprises a first connecting part and a second connecting part. The first connecting part comprises a supporting body and an abutting part. The abutting part is arranged protruding from the supporting body, and can be used for abutting contact with a first pair of connecting pieces and electrically connected with each other without welding. The second connecting part is electrically connected with the first connecting part, and can be used for electrically connecting with a second pair of connecting pieces. The connecting piece is a metal integral piece. The connecting piece is stable in electric connection and has a long service life.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 201710858429.8, filed on September 20, 2017, entitled "Connector, Electrical Connection Assembly and Apparatus for Electrical Connection and Management in Battery Pack". Technical Field

[0002] This invention relates to an electrical connection structure, and more particularly to a connector, an electrical connection assembly, and a device for electrical connection and management within a battery pack. Background Technology

[0003] Connectors are crucial components for achieving electrical connections. With the increasing adoption of clean energy, the demand for batteries is expanding. In particular, electric vehicles, driven by electricity, significantly reduce air pollution. As a vital part of electric vehicles, battery packs often require connectors to achieve the necessary electrical connections. Therefore, obtaining stable electrical connections and facilitating their convenient implementation has become a key consideration. Summary of the Invention

[0004] One of the objectives of this invention is to overcome the shortcomings of the prior art and provide a connector, an electrical connection assembly, and a device for electrical connection and management within a battery pack that provides stable electrical connection and a long lifespan.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a connector. The connector includes a first connecting portion and a second connecting portion. The first connecting portion includes a supporting body and an abutting portion. The abutting portion protrudes from the supporting body and can be used to abut against and electrically connect with a first mating connector without soldering. The second connecting portion is electrically connected to the first connecting portion and can be used to electrically connect with a second mating connector. The connector is a single metal component.

[0006] Preferably, the connector is a single metal structure or an alloy structure.

[0007] Preferably, the first connecting portion has a weaker metallic reducibility than the first mating connecting member.

[0008] Preferably, the second connecting portion has stronger metal reduction properties than the second mating connecting member.

[0009] Preferably, the abutting portion is configured to penetrate the surface of the first mating connector when subjected to external pressure and to contact the internal structure of the first mating connector in order to avoid welding connection.

[0010] Preferably, the abutting portion has a tapered tip; the tapered tip can penetrate the surface of the first mating connector and contact the internal structure of the first mating connector to avoid welding connection.

[0011] Preferably, the first connecting portion further includes a second abutting portion. The second abutting portion protrudes from the support body and can be used to abut against the first mating connecting member and to achieve a solderless electrical connection with it.

[0012] Preferably, the second abutment portion includes one or more claws. The claws extend protrudingly from the support body and can be used to pass through the surface of the first pair of power distribution connectors to make contact with the internal structure of the first pair of power distribution connectors for electrical connection.

[0013] Preferably, the second abutting portion is disposed opposite to at least a portion of the abutting portion, such that the abutting portion and the second abutting portion are used to make electrical connections with a pair of surfaces on the first mating connector, respectively.

[0014] Preferably, at least a portion of the second abutting portion is disposed opposite to at least a portion of the abutting portion.

[0015] Preferably, the connector is an integral stamped structure.

[0016] Preferably, the second connecting part is configured to be crimped, welded or riveted with the second mating connecting part.

[0017] Preferably, the reducing properties of the connector are between those of copper and aluminum.

[0018] This invention provides an electrical connection assembly. The electrical connection assembly includes a connector, a first mating connector, and a second mating connector, as described in any of the preceding descriptions. The first mating connector is in contact with the abutting portion of the first connector and is electrically connected without soldering; the second mating connector is in contact with the second connector and is electrically connected.

[0019] Preferably, the first pair of mating members has stronger metal reduction properties than the second pair of mating members.

[0020] Preferably, the first mating connector is made of aluminum. The second mating connector is made of copper.

[0021] Preferably, the connector has a weaker metallic reducibility than the first mating connector.

[0022] Preferably, the connector has stronger metal reduction properties than the second mating connector.

[0023] Preferably, the first mating connector has a first surface and a second surface disposed opposite to each other. The first mating connector is provided with a mounting through hole; the mounting through hole extends through both the first surface and the second surface. The abutting portion extends through the mounting through hole and bends to abut against the first mating connector.

[0024] Preferably, the abutting portion has a tapered tip. The tapered tip penetrates the first surface of the first mating connector and extends to make electrical contact with the internal structure of the first mating connector.

[0025] Preferably, the first connecting portion further includes a second abutting portion. The second abutting portion protrudes from the support body. The second abutting portion penetrates the second surface of the first mating connector and is electrically connected to the internal structure of the first mating connector.

[0026] Preferably, the first connecting portion further includes a second abutting portion. The second abutting portion protrudes from the support body and abuts against the first mating connector, forming a solderless electrical connection with it.

[0027] Preferably, the second mating connector is a wire, a connecting terminal, a busbar, or a circuit board.

[0028] Preferably, the first mating connector is a busbar. The first mating connector can be used for electrical connection with the battery cell.

[0029] The present invention also provides an apparatus for electrical connection and management within a battery pack. The apparatus includes a bracket and an electrical connection assembly according to any one of the preceding descriptions. The first mating connector includes a busbar. The busbar is fixed to the bracket and is electrically connected to a battery cell.

[0030] Compared with the prior art, the connector of the present invention is electrically connected to the first mating connector and the second mating connector one by one through the first connecting part and the second connecting part, which facilitates the realization of the corresponding electrical connection. Furthermore, the first connecting part can be electrically connected to the first mating connector without soldering through the abutment part, thereby simplifying the connection process, shortening the production cycle, and saving production costs. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram showing the upper surface of the support body as one embodiment of the connector provided by the present invention.

[0032] Figure 2 for Figure 1 A three-dimensional structural diagram of the connector is shown when the lower surface of the supporting body is displayed.

[0033] Figure 3 The present invention includes Figure 1 A three-dimensional structural diagram of the electrical connection assembly of the connector.

[0034] Figure 4 for Figure 3 A schematic diagram of the electrical connection components.

[0035] Figure 5 for Figure 3 A cross-sectional view of the electrical connection components along line EE.

[0036] Figure 6 for Figure 3 A cross-sectional view of the electrical connection assembly along line FF.

[0037] Figure 7 This is a schematic diagram of a second embodiment of the connector provided by the present invention.

[0038] Figure 8 The present invention includes Figure 7 A three-dimensional structural diagram of the electrical connection assembly of the connector.

[0039] Figure 9 This is a structural schematic diagram of a third embodiment of the connector provided by the present invention.

[0040] Figure 10 The present invention includes Figure 9 A three-dimensional structural diagram of the electrical connection assembly of the connector.

[0041] Figure 11 This is a structural schematic diagram of a fourth embodiment of the connector provided by the present invention.

[0042] Figure 12 The present invention includes Figure 11 A three-dimensional structural diagram of the electrical connection assembly of the connector. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings: Example 1: Please see Figure 1 and Figure 2 This invention provides a connector 101. The connector 101 includes a first connecting portion 10 and a second connecting portion 30. The first connecting portion 10 is connected to the second connecting portion 30, and is electrically connected to the corresponding first mating connector 200 and second mating connector 300, respectively.

[0044] The first connecting portion 10 includes a supporting body 12 and an abutting portion 14 protruding from the supporting body 12. The specific shape and structure of the supporting body 12 need only be able to support the corresponding abutting portion 14. In this embodiment, the supporting body 12 is generally flat, which facilitates its direct alignment with the plate-shaped first mating connecting member 200. Furthermore, the supporting body 12 is in contact with the first mating connecting member 200. Specifically, the supporting body 12 and the second surface 214 of the first mating connecting member 200 are in contact and electrically connected, thereby enhancing conductivity.

[0045] The abutting portion 14 abuts against the first mating connector 200 and is electrically connected to the first mating connector 200 without soldering. That is, the abutting portion 14 achieves solderless electrical contact between the first connecting portion 10 and the first mating connector 200 by abutting against the first mating connector 200, thereby avoiding welding operations and simplifying the process. Furthermore, to improve electrical connection performance, the abutting portion 14 is configured to penetrate the surface of the first mating connector 200 and make contact with the internal structure of the first mating connector 200 for electrical connection. The specific shape and structure of the abutting portion 14 can be whatever achieves the abutment. For example, the abutting portion 14 can be plate-shaped or boss-shaped. In this embodiment, the abutting portion 14 is generally columnar. More specifically, to facilitate penetration of the first mating connector 200, the abutting portion 14 has a tapered tip 142. That is, the free end of the abutment portion 14 is configured as a tapered, gradually tapering end. The tapered tip 142 can penetrate the first surface 212 of the first mating connector 200 and make contact with the internal structure of the first mating connector 200. The number and arrangement of the abutment portions 14 are selected as needed. In this embodiment, multiple abutment portions 14 protrude from the side walls of the support body 12. To enhance the mechanical strength of the second abutment portion 14, the second abutment portion 14 is provided with reinforcing ribs 145. The reinforcing ribs 145 protrude relative to the abutment portion 14. The reinforcing ribs 145 are generally rib-shaped. In this embodiment, the reinforcing ribs 145 are stamped structures. More specifically, the reinforcing ribs 145 are formed by stamping from the plate-shaped abutment portions 14. At least one pair of the reinforcing ribs 145 protrude relative to each other. The abutment portion 14 penetrates the first surface 212 of the first mating connector 200, thereby avoiding direct contact with oxides or other structures on the surface of the first mating connector 200 and allowing direct contact with the internal material structure of the first mating connector 200, thus reducing resistance and improving electrical conductivity. In particular, when the first mating connector 200 is made of aluminum, its surface is more prone to oxidation. In this case, the abutment portion 14 penetrates the surface of the aluminum first mating connector 200, resulting in better electrical connection performance for the electrical connection assembly 103. The abutment portion 14 extends through the mounting through-hole 210 on the first mating connector 200 and bends to abut against the first mating connector 200.

[0046] To further enhance the electrical connection performance between the connector 101 and the corresponding first mating connector 200, the first connecting portion 10 further includes a second abutment portion 16. The second abutment portion 16 abuts against the first mating connector 200 and makes contact with it for electrical connection. Further, the second abutment portion 16 penetrates the second surface 214 of the first mating connector 200 and makes contact with its internal structure for electrical connection. Accordingly, the second abutment portion 16 and the first mating connector 200 are electrically connected without soldering, thereby simplifying the operation process. The shape of the second abutment portion 16 can be selected as needed and may have the same structure as the abutment portion 14. The second abutment portion 16 protrudes from the support body 12. To enhance the contact performance with the internal structure of the first mating connector 200, the second abutment portion 16 protrudes from the support body 12 in a petal-like shape. That is, multiple sheet-like protrusions surround the second abutment portion 16. In this embodiment, the second abutment portion 16 includes one or more claws 162. The claws 162 protrude from the upper surface 12a of the support body 12. More specifically, four claws 162 are evenly distributed and surround a stamped through-hole. For ease of manufacturing, the second abutment portion 16 is a stamped structure. That is, the second abutment portion 16 is formed by stamping from the lower surface 12b to the upper surface 12a of the support body 12. The number and distribution of the second abutment portions 16 are selected as needed. In this embodiment, multiple second abutment portions 16 are spaced apart and form multiple contact portions that are electrically connected to the first mating connector 200. To enhance the stable abutment performance against the corresponding first mating connector 200, at least a portion of the second abutment portions 16 are positioned opposite to at least a portion of the abutment portions 14.

[0047] The second connecting portion 30 is used for electrical contact with the second mating connector 300 described below. The specific shape and structure of the second connecting portion 30 are only required to achieve the corresponding electrical connection. The method of electrical connection between the second connecting portion 30 and the second mating connector 300 is selected as needed. The second connecting portion 30 can be electrically connected to the second mating connector 300 by welding, riveting, or crimping. Of course, the second connecting portion 30 can also adopt the same shape and structure as the first connecting portion 10 and achieve the same abutting contact. To simplify the process, in this embodiment, the second connecting portion 30 and the second mating connector 300 are electrically connected without welding. For example, the second connecting portion 30 includes a pair of crimping walls bent into a groove shape. When the second mating connector 300 is accommodated in the groove, the crimping walls are bent to crimp onto the second mating connector 300. Alternatively, the second connecting portion 30 includes a plate-shaped welded structure. The welded plate can be welded integrally with the second mating connector 300. The second connecting part 30 is integrally connected to the first connecting part 10 via a connecting plate 50. The width of the connecting plate 50 is smaller than the width of the supporting body 12.

[0048] To further enhance the mechanical strength and stability of the connector 101, the connector 101 is a single-piece metal component. In this embodiment, the connector 101 is a stamped single-piece component. Specifically, the connector 101 is made from a single piece of metal sheet through stamping.

[0049] To further enhance the isolation of the galvanic effect between the first mating connector 200 and the second mating connector 300 by the connector 101 to avoid electrochemical corrosion, the metal reduction performance of the connector 101 is weaker than that of the first mating connector 200; the metal reduction performance of the connector 101 is stronger than that of the second mating connector 300. Specifically, the first connecting portion 10 has weaker metal reduction properties than the first mating connector 200; the second connecting portion 30 has stronger metal reduction properties than the second mating connector 300. It is understood that the strength of "metal reduction properties" is relative, referring to the ease with which an electron is lost in a galvanic effect. The easier a metal is to lose electrons, the stronger its reduction properties; the less easily a metal is to lose electrons, the weaker its reduction properties.

[0050] Accordingly, the connector 101 can be a single-element metal structure. The connector 101 can also be an alloy structure. Further, the metal reducing power of the single-element metal or alloy used in the connector 101 only needs to be weaker than that of the first mating connector 200 and stronger than that of the second mating connector 300. In this embodiment, the first mating connector 200 is an aluminum structure. The second mating connector 300 is a copper structure. Accordingly, the connector 101 can be made of single-element metals such as zinc, iron, tin, or lead, or an alloy material including at least one of the above single-element metals. To improve service life and maintain safe and stable performance, the metal reducing power of the connector 101 is between that of copper and aluminum.

[0051] Example 2: Please see Figures 3 to 6 The present invention also provides an electrical connection assembly 103. The electrical connection assembly 103 includes the aforementioned connector 101, a first mating connector 200, and a second mating connector 300. The first mating connector 200 is electrically connected to the first connecting portion 10. The second mating connector 300 is electrically connected to the second connecting portion 30.

[0052] The specific shape, structure, and material of the first mating connector 200 only need to meet the corresponding electrical connection requirements. The first mating connector 200 includes a first surface 212 and a second surface 214. The first surface 212 and the second surface 214 are arranged back-to-back. To improve the stability of the electrical connection, the first mating connector 200 is provided with a mounting through hole 220. The mounting through hole 220 is disposed through the first surface 212 and the second surface 214. The mounting through hole 220 is used to hold the abutment portion 14 of the first connection portion 10. In this embodiment, to improve current conduction performance, the first mating connector 200 is a busbar. More specifically, the first mating connector 200 is an aluminum structure. The first mating connector 200 can be used to connect external electronic devices. In this embodiment, the first mating connector 200 can be used to connect a battery cell (not shown in the figure).

[0053] The following describes in detail the mating relationship between the first mating connector 200 and the first connecting portion 10 in this embodiment: The second surface 214 of the first mating connector 200 is disposed opposite to the support body 12, and the mounting through hole 220 is aligned with the abutment portion 14. Correspondingly, the abutment portions 14 are inserted into the mounting through holes 220 one by one. One end of the abutment portion 14 is bent to abut against the first surface 212. Further, one end of the abutment portion 14 penetrates the first surface 212 and extends to make contact with the internal structure of the first mating connector 200 for electrical connection, so as to avoid welding connection. At the same time, the support body 12 can support the first mating connector 200 and make contact with the second surface 214 for electrical connection. The second abutment portion 16 abuts against the second surface 214. Further, the second abutment portion 16 extends through the second surface 214 and makes contact with the internal structure of the first mating connector 200 for electrical connection, so as to avoid welding connection.

[0054] The second mating connector 300 is electrically connected to the second connecting portion 30. As mentioned above, the second mating connector 300 can be electrically connected to the second connecting portion 30 in any form. Furthermore, the second mating connector 300 is spaced apart from the first mating connector 200 to avoid corrosion caused by the galvanic cell effect.

[0055] The specific shape and structure of the second mating connector 300 are selected according to needs, as long as the corresponding electrical connection can be achieved. In this embodiment, in order to fully improve the electrical connection performance, the second mating connector 300 is made of copper. That is, the second mating connector 300 is made of copper. In this embodiment, the second mating connector 300 is a wire. Accordingly, the second mating connector 300 achieves electrical connection with the second connection part 30 by means of soldering or resistance welding. The second mating connector 300 can transmit corresponding power (current, voltage) or electrical signals.

[0056] Example 3: Please see Figure 7 The present invention also provides a connector 101b. Unlike Embodiment 1, the second connecting portion 30b of the connector 101b has a different specific structure than the second connecting portion 30 of Embodiment 1. In this embodiment, the second connecting portion 30b has the same structure as the first connecting portion 10. For the specific structure of the second connecting portion 30b and its mating method with the corresponding second mating connector 300b, please refer to the description of the first connecting portion 10 in Embodiment 1.

[0057] Example 4: Please see Figure 8The present invention also provides an electrical connection assembly 103b. Unlike Embodiment 2, the electrical connection assembly 103b includes the connector 101b described in Embodiment 3, the first mating connector 200 as described in Embodiment 2, and the second mating connector 300b. The first connecting portion 10 of the connector 101b is electrically connected to the first mating connector 200. The second connecting portion 30b of the connector 101b is electrically connected to the second mating connector 300b. The second connecting portion 30b has the same specific structure as the first connecting portion 10, and uses the same method to achieve electrical connection with the corresponding first mating connector 200 and second mating connector 300b.

[0058] In this embodiment, the second mating connector 300b is generally plate-shaped to facilitate electrical connection with the corresponding connector. Accordingly, at least a portion of the structure of the second mating connector 300b is the same as that of the first mating connector 200. Specifically, the second mating connector 300b has mounting through holes 220 as in the first mating connector 200.

[0059] Example 5: Please see Figure 9 The present invention also provides a connector 101c. Unlike Embodiment 1, the second connecting portion 30c of the connector 101c has a different structure from the second connecting portion 30 of Embodiment 1. Specifically, the second connecting portion 30c includes a base plate 32 and a connecting foot 34. The connecting foot 34 protrudes from the base plate 32 and extends to be electrically connected to the second mating connector 300c described below.

[0060] Example 6: Please see Figure 10 The present invention also provides an electrical connection assembly 103c. Unlike Embodiment 2, the electrical connection assembly 103c includes the aforementioned connector 101c, the aforementioned first mating connector 200, and the second mating connector 300c. The first connecting portion 10 of the connector 101c is electrically connected to the first mating connector 200. The second connecting portion 30c of the connector 101c is electrically connected to the second mating connector 300c.

[0061] Specifically, in this embodiment, the second mating connector 300c is a flexible printed circuit (FPC). Of course, the second mating connector 300c can also be other types of printed circuit boards (PCBs). It is conceivable that the flexible circuit board and other types of printed circuit boards are electrically connected to the corresponding second connecting part 30c through copper foil.

[0062] The following describes the mating relationship between the second mating connector 300c and the second connecting part 30c: The second mating connector 300c is provided with a corresponding mating through hole (not shown in the figure). The second connecting part 30c passes through the mating through hole via the connecting foot 34 and makes contact with the second mating connector 300c for electrical connection.

[0063] Example 7: Please see Figure 11 The present invention also provides a connector 101d. Unlike Embodiment 1, the connector 101d has a second connecting portion 30d with a different structure from the second connecting portion 30. Specifically, in this embodiment, the second connecting portion 30d includes at least a pair of crimping walls 35a and 35b. The pair of crimping walls 35a and 35b are positioned opposite each other, can be bent relatively close together, and are crimped together with the corresponding second mating connector 300d for electrical connection. The pair of crimping walls 35a and 35b form a receiving hole 36. Further, another pair of crimping walls 37a and 37b are positioned opposite each other, can be bent relatively close together, and are crimped together with the corresponding second mating connector 300d for electrical connection. The pair of crimping walls 37a and 37b form another receiving hole 38. The receiving holes 36 and 38 are positioned opposite each other.

[0064] Example 8: Please see Figure 12 The present invention also provides an electrical connection assembly 103d. Unlike Embodiment 2, the electrical connection assembly 103d includes the aforementioned connector 101d, the aforementioned first mating connector 200, and the second mating connector 300d. The first connecting portion 10 of the connector 101 is electrically connected to the first mating connector 200. The second connecting portion 30d of the connector 101 is electrically connected to the second mating connector 300d.

[0065] In this embodiment, the second mating connector 300d is a wire. The second mating connector 300d extends into the receiving holes 36 and 38 and is crimped into the crimping walls 35a, 35b, 37a, and 37b to establish an electrical connection. Of course, the second mating connector 300d can also be a connecting terminal if needed.

[0066] Example 9: The present invention also provides an apparatus for electrical connection and management within a battery pack. The apparatus includes a bracket (not shown in the figure) and any of the electrical connection components 103, 103b, 103c, and 103d described above. The first mating connector 200 includes a busbar. The busbar is fixed to the bracket and can be used for electrical connection with a battery cell. It is understood that the apparatus for electrical connection and management within a battery pack can not only achieve the corresponding electrical connections, but also manage the corresponding parameters and performance of the battery cells to improve the performance and lifespan of the battery cells. The apparatus for electrical connection and management within a battery pack may also include corresponding components for monitoring and signal processing, such as a microprocessor.

[0067] A battery pack is a type of battery module. The battery pack includes battery cells (not shown in the figure) and electrical connection components 103, 103b, 103c, and 103d as described above. The battery cells are electrically connected to corresponding first mating connectors 200 on the electrical connection components 103, 103b, 103c, and 103d. Correspondingly, second connection portions 30, 30b, 30c, and 30d transmit power and / or electrical signals to the second mating connectors 300. As one application, the battery pack is a battery module used as a power battery for automobiles.

[0068] It should be noted that, unless otherwise specified, in this invention, terms such as "upper," "lower," "left," "right," "front," and "rear" are relative concepts and are used only to facilitate understanding of one corresponding embodiment in conjunction with the accompanying drawings. Specifically, the first surface 212 can be... Figure 6 The upper surface in the vertical direction is shown in the figure; the second surface 214 can be the lower surface that is opposite to the first surface 212.

[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions or improvements within the spirit of the present invention are covered within the scope of the claims of the present invention.

Claims

1. A connector, characterized in that, include: A first connecting portion (10) includes a supporting body (12) and an abutting portion (14); the abutting portion protrudes from the supporting body and has a tapered tip that can penetrate the surface of the first mating connector and contact the internal structure of the first mating connector to avoid welding connection; and The second connecting part (30) is electrically connected to the first connecting part and can be used to electrically connect with the second mating connector; The connector is a single metal component.

2. The connector according to claim 1, characterized in that: The connector is a single metal structure or an alloy structure.

3. The connector according to claim 1, characterized in that: The first connecting portion has weaker metallic reducibility than the first mating connecting member; and / or The second connecting part has stronger metal reduction properties than the second mating connecting part.

4. The connector according to claim 1, characterized in that: The abutting part can penetrate the surface of the first mating connector when subjected to external pressure and contact the internal structure of the first mating connector to avoid welding connection.

5. The connector according to claim 1, characterized in that: The first connecting portion further includes a second abutting portion; The second abutting part protrudes from the support body and can be used to abut against the first mating connector and make an electrical connection with each other without soldering.

6. The connector according to claim 5, characterized in that: The second abutment portion includes one or more claws; The claw extends outward from the support body and can be used to pass through the surface of the first pair of power distribution connectors to make contact with the internal structure of the first pair of power distribution connectors for electrical connection.

7. The connector according to claim 5, characterized in that: The second abutting portion is disposed opposite to at least a portion of the abutting portion, such that the abutting portion and the second abutting portion are used to make electrical connections with a pair of surfaces on the first mating connector, respectively.

8. The connector according to claim 7, characterized in that: At least a portion of the second abutting portion is disposed opposite to at least a portion of the abutting portion.

9. The connector according to claim 1, characterized in that: The connector is an integral stamped structure.

10. The connector according to claim 1, characterized in that: The second connecting part is configured to be crimped, welded or riveted with the second mating connecting part.

11. The connector according to any one of claims 1 to 10, characterized in that: The reducing power of the connector is between that of copper and that of aluminum.

12. An electrical connection assembly, characterized in that, include: The connector according to any one of claims 1 to 4, or 6 to 10; A first mating connector has a first surface and a second surface facing away from each other. The first mating connector has a pre-set mounting through hole that penetrates both the first and second surfaces. An abutment portion of the first connector extends through the mounting through hole and bends to abut against the first mating connector, such that the tapered tip of the abutment portion can penetrate the first surface of the first mating connector and contact its internal structure to avoid welding. The second mating connector is electrically connected to the second connecting part.

13. The electrical connection assembly according to claim 12, characterized in that: The first pair of mating members has stronger metal reduction properties than the second pair of mating members.

14. The electrical connection assembly according to claim 13, characterized in that: The first mating connector is made of aluminum. The second mating connector is made of copper.

15. The electrical connection assembly according to claim 12, characterized in that: The connector has weaker metallic reducibility than the first mating connector; and / or The connector has stronger metallic reducibility than the second mating connector.

16. The electrical connection assembly according to claim 12, characterized in that: The first connecting portion further includes a second abutting portion; The second abutting part protrudes from the support body; The second abutting portion penetrates the second surface of the first mating connector and is electrically connected to the internal structure of the first mating connector.

17. The electrical connection assembly according to claim 12, characterized in that: The first connecting portion further includes a second abutting portion; The second abutting part protrudes from the support body and abuts against the first mating connector and is electrically connected to each other without soldering.

18. The electrical connection assembly according to claim 12, characterized in that: The second mating connector is a wire, a connecting terminal, a bus, or a circuit board.

19. The electrical connection assembly according to claim 12, characterized in that: The first mating connector is a busbar; The first mating connector can be used for electrical connection with the battery cell.

20. A device for electrical connection and management within a battery pack, characterized in that, include: support; and Electrical connection assembly according to any one of claims 12 to 18; The first mating connector includes a busbar; the busbar is fixed on the bracket and can be electrically connected to the battery cell.

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