Copper-aluminum composite negative pole with integral encapsulation structure

Abstract

The utility model relates to a copper -aluminium composite negative pole, concretely is a copper -aluminium composite negative pole of integral rubber -coated structure, this copper -aluminium composite negative pole includes copper column and sets up on copper column aluminium column, and copper column includes copper bottom piece and sets up on copper bottom piece mounting column, and mounting column includes the column body and first soft quality rubber -sleeve and first hard quality rubber -sleeve that set up in the column body outside in proper order, and aluminium column includes base and sets up on the column head of base, and base includes seat and second soft quality rubber -sleeve and second hard quality rubber -sleeve that set up in the seat outside in proper order, and fixed with the locating sleeve on the base, and fixed with a plurality of convex seats on the lower end surface of locating sleeve. The copper -aluminium composite negative pole of integral rubber -coated structure can play the protection effect to copper column aluminium column, separates the moisture, oxygen and electrolyte in outside environment, avoids the copper -aluminium interface because of electrochemistry reaction and accelerates the corrosion, reduces the metal surface oxidation rate simultaneously, guarantees that it can long -term stably operates.

Description

Technical Field

[0001] This utility model relates to a copper-aluminum composite negative electrode post, specifically a copper-aluminum composite negative electrode post with an integrally coated structure. Background Technology

[0002] Copper-aluminum composite negative electrode posts are key components used for conductive connections in the power batteries of new energy vehicles. Their core feature is that they combine copper and aluminum into a single structure through a special process, achieving performance optimization and cost control.

[0003] Existing copper-aluminum composite negative electrode post structures are complex and poorly designed. Neither the copper nor the aluminum posts provide protection, isolation, or sealing. During use, moisture, oxygen, and electrolytes from the external environment can come into contact with them, accelerating oxidation and corrosion, and reducing long-term stability. Furthermore, existing copper-aluminum composite negative electrode posts are prone to accidental contact with external conductors, potentially causing short circuits and posing safety hazards. Therefore, the inventors have improved the structure of the integrated rubber-coated copper-aluminum composite negative electrode post. Utility Model Content

[0004] The purpose of this invention is to provide an integrated coated copper-aluminum composite negative electrode post. This copper-aluminum composite negative electrode post has a simple structure and reasonable design. It can protect the copper and aluminum pillars, isolate moisture, oxygen and electrolyte from the external environment, prevent accelerated corrosion of the copper-aluminum interface due to electrochemical reactions, reduce the oxidation rate of the metal surface, ensure long-term stable operation, and prevent accidental contact between the copper and aluminum pillars and external conductors, thus preventing safety hazards caused by short circuits. The soft and hard rubber sleeves can form a flexible seal at the contact interface between the copper / aluminum pillar and the battery casing, reducing the risk of electrolyte leakage. This invention solves the problems mentioned in the above-mentioned technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated coated copper-aluminum composite negative electrode post, comprising a copper post and an aluminum post disposed on the copper post. The copper post includes a copper base plate and an mounting post disposed on the copper base plate. The mounting post includes a post body and a first soft rubber sleeve and a first hard rubber sleeve disposed sequentially on the outer side of the post body. The aluminum post includes a base and a post head disposed on the base. The base includes a seat body and a second soft rubber sleeve and a second hard rubber sleeve disposed sequentially on the outer side of the seat body. A positioning sleeve is fixed on the base, and a protruding seat is fixed on the lower end face of the positioning sleeve. The end of the protruding seat away from the positioning sleeve is fixed to the mounting post.

[0006] Preferably, the thickness of the first soft rubber sleeve and the thickness of the second soft rubber sleeve are equal, and the thickness is between 0.15 mm and 0.5 mm.

[0007] Preferably, the thickness of the first hard rubber sleeve and the thickness of the second hard rubber sleeve are equal, and the thickness is between 0.1 mm and 0.25 mm.

[0008] Preferably, the base is positioned between the mounting column and the column head, and the positioning sleeve is fixed to the outside of the base, with the positioning sleeve having a ring-shaped design.

[0009] Preferably, a plurality of protruding seats are provided, and the plurality of protruding seats are distributed in the circumferential direction of the positioning sleeve.

[0010] Preferably, the protruding seat includes a connecting rod and a bend at the bottom of the connecting rod, and the connecting rod is fixedly connected to the positioning sleeve.

[0011] Preferably, the end of the turning part away from the connecting rod is provided with a mating surface, which is in contact with the surface of the first hard rubber sleeve. During assembly, multiple protrusions are made to pass over the first hard rubber sleeve and snap onto the outer surface of the first hard rubber sleeve. This allows the multiple protrusions to keep the position between the base and the mounting post fixed, thereby improving the accuracy of the mounting post and the base during the assembly process.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides an integrated coated copper-aluminum composite negative electrode post, which includes a copper post and an aluminum post disposed on the copper post. The overall structure is simple and reasonably designed. The copper post includes a copper base plate and a mounting post disposed on the copper base plate. The mounting post includes a post body and a first soft rubber sleeve and a first hard rubber sleeve disposed sequentially on the outside of the post body. The aluminum post includes a base and a post head disposed on the base. The base includes a seat body and a second soft rubber sleeve and a second hard rubber sleeve disposed sequentially on the outside of the seat body. The first soft rubber sleeve, the first hard rubber sleeve, the second soft rubber sleeve, and the second hard rubber sleeve can protect the copper and aluminum posts, isolate moisture, oxygen, and electrolyte in the external environment, prevent the copper-aluminum interface from being accelerated by electrochemical reactions, reduce the oxidation rate of the metal surface, ensure long-term stable operation, and have certain resistance to damp heat and corrosion, thus extending its service life and making it suitable for widespread use.

[0014] 2. The first soft rubber sleeve and the first hard rubber sleeve in this utility model can provide good protection and isolation for the mounting column, and the second soft rubber sleeve and the second hard rubber sleeve can provide good protection and isolation for the base. During use, they can prevent accidental contact between the copper and aluminum columns and external conductors, preventing safety hazards caused by short circuits. At the same time, the soft and hard rubber sleeves can form a flexible seal at the contact interface between the copper and aluminum columns and the battery casing, reducing the risk of electrolyte leakage. It is highly practical.

[0015] 3. The protruding seat in this utility model includes a connecting rod and a turning part set at the bottom of the connecting rod. The end of the turning part away from the connecting rod is provided with a mating surface, which is attached to the surface of the first hard rubber sleeve. During assembly, multiple protruding seats pass over the first hard rubber sleeve and are snapped onto the outer surface of the first hard rubber sleeve. The multiple protruding seats keep the position between the base and the mounting post fixed, thereby improving the accuracy of the mounting post and the base during the assembly process. Attached Figure Description

[0016] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model;

[0017] Figure 2 This is a second schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This utility model Figure 1 Sectional view of AA;

[0019] Figure 4 This utility model Figure 3 Enlarged view of B in the middle;

[0020] Figure 5 This is a schematic diagram of the protruding seat of this utility model.

[0021] The reference numerals and names in the figure are as follows: 1. Copper pillar; 11. Copper base plate; 12. Mounting pillar; 121. Pillar body; 122. First soft rubber sleeve; 123. First hard rubber sleeve; 2. Aluminum pillar; 21. Base; 211. Seat body; 212. Second soft rubber sleeve; 213. Second hard rubber sleeve; 22. Pillar head; 23. Positioning sleeve; 24. Protruding seat; 241. Connecting rod; 242. Turning part; 243. Mating surface. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figure 1 One embodiment of this utility model is a copper-aluminum composite negative electrode post with an integrally coated structure, which includes a copper post 1 and an aluminum post 2 disposed on the copper post 1.

[0026] Please see Figure 2 The copper column 1 includes a copper base plate 11 and a mounting column 12 disposed on the copper base plate 11. The aluminum column 2 includes a base 21 and a column head 22 disposed on the base 21. A positioning sleeve 23 is fixed on the base 21.

[0027] Please see Figure 3 The base 21 is disposed between the mounting post 12 and the post head 22. The positioning sleeve 23 is fixed to the outside of the base 21 and the positioning sleeve 23 is designed in a ring shape. Multiple protruding seats 24 are fixed on the lower end face of the positioning sleeve 23. The ends of the multiple protruding seats 24 away from the positioning sleeve 23 are all fixed on the mounting post 12, and the multiple protruding seats 24 are distributed in the circumferential direction of the positioning sleeve 23.

[0028] Please see Figure 4The mounting post 12 includes a post body 121 and a first soft rubber sleeve 122 and a first hard rubber sleeve 123 sequentially disposed on the outer side of the post body 121. The base 21 includes a seat body 211 and a second soft rubber sleeve 212 and a second hard rubber sleeve 213 sequentially disposed on the outer side of the seat body 211. The thickness of the first soft rubber sleeve 122 is equal to the thickness of the second soft rubber sleeve 212, and the thickness is between 0.15mm and 0.5mm. The thickness of the first hard rubber sleeve 123 is equal to the thickness of the second hard rubber sleeve 213, and the thickness is between 0.1mm and 0.25mm. In this embodiment, both the first soft rubber sleeve 122 and the second soft rubber sleeve 212 are made of rubber, and both the first hard rubber sleeve 123 and the second hard rubber sleeve 213 are made of plastic. The first hard rubber sleeve 123 and the second soft rubber sleeve 212 and the second hard rubber sleeve 213 protect and isolate the mounting post 12, thereby protecting the copper post 1 and the aluminum post 2. They isolate moisture, oxygen and electrolyte from the external environment, prevent the copper-aluminum interface from being accelerated by electrochemical reaction, reduce the oxidation rate of the metal surface, ensure long-term stable operation, and have a certain degree of resistance to damp heat and corrosion, thus extending the life of the copper post 1 and the aluminum post 2. During use, the soft and hard rubber sleeves can also prevent accidental contact between the copper post 1 and the aluminum post 2 and external conductors, preventing safety hazards caused by short circuits. At the same time, the soft and hard rubber sleeves can form a flexible seal at the contact interface between the copper post 1 and the aluminum post 2 and the battery casing, reducing the risk of electrolyte leakage.

[0029] Please see Figure 5 The protruding seat 24 includes a connecting rod 241 and a turning portion 242 disposed at the bottom of the connecting rod 241. The connecting rod 241 is fixedly connected to the positioning sleeve 23. The end of the turning portion 242 away from the connecting rod 241 is provided with a mating surface 243. The mating surface 243 is attached to the surface of the first hard rubber sleeve 123. During assembly, multiple protruding seats 24 are made to pass over the first hard rubber sleeve 123 and be engaged with the outer surface of the first hard rubber sleeve 123. The position between the base 21 and the mounting post 12 can be kept fixed by multiple protruding seats 24, thereby improving the accuracy of the mounting post 12 and the base 21 during the assembly process.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A copper-aluminum composite negative electrode post with an integrally coated structure, comprising a copper post (1) and an aluminum post (2) disposed on the copper post (1), characterized in that: The copper column (1) includes a copper base plate (11) and a mounting column (12) disposed on the copper base plate (11). The mounting column (12) includes a column body (121) and a first soft rubber sleeve (122) and a first hard rubber sleeve (123) disposed sequentially on the outside of the column body (121). The aluminum column (2) includes a base (21) and a column head (22) disposed on the base (21). The base (21) includes a seat body (211) and a second soft rubber sleeve (212) and a second hard rubber sleeve (213) disposed sequentially on the outside of the seat body (211). A positioning sleeve (23) is fixed on the base (21). A protruding seat (24) is fixed on the lower end face of the positioning sleeve (23). The end of the protruding seat (24) away from the positioning sleeve (23) is fixed on the mounting column (12).

2. The copper-aluminum composite negative electrode post with an integrated rubber-coated structure according to claim 1, characterized in that: The thickness of the first soft rubber sleeve (122) is equal to the thickness of the second soft rubber sleeve (212), and the thickness is between 0.15 mm and 0.5 mm.

3. The copper-aluminum composite negative electrode post with an integrated rubber-coated structure according to claim 1, characterized in that: The thickness of the first hard rubber sleeve (123) is equal to the thickness of the second hard rubber sleeve (213), and the thickness is between 0.1 mm and 0.25 mm.

4. The copper-aluminum composite negative electrode post with an integrally coated structure according to claim 1, characterized in that: The base (21) is disposed between the mounting post (12) and the post head (22), and the positioning sleeve (23) is fixed to the outside of the base (21), and the positioning sleeve (23) is designed in a ring shape.

5. The copper-aluminum composite negative electrode post with an integrated rubber-coated structure according to claim 1, characterized in that: There are multiple protruding seats (24), and the multiple protruding seats (24) are distributed in the circumferential direction of the positioning sleeve (23).

6. The copper-aluminum composite negative electrode post with an integrally coated structure according to claim 1, characterized in that: The protruding seat (24) includes a connecting rod (241) and a turning part (242) provided at the bottom of the connecting rod (241). The connecting rod (241) is fixedly connected to the positioning sleeve (23).

7. The copper-aluminum composite negative electrode post with an integrally coated structure according to claim 6, characterized in that: The end of the turning part (242) away from the connecting rod (241) is provided with a mating surface (243), which is attached to the surface of the first hard rubber sleeve (123).

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