A potting structure of a positive pole post

Abstract

The utility model relates to battery component technical field discloses a kind of encapsulation structure of positive pole, including pole, base and encapsulation part, base is connected to the bottom of pole, four dovetail grooves are evenly provided on pole, first recess and second recess are provided on pole, the groove top of first recess is connected with the groove bottom of second recess, forms step structure, encapsulation part is formed with encapsulation part by encapsulation of pole periphery, encapsulation part fills four dovetail grooves and first recess and second recess.The utility model is embedded between encapsulation part and pole by setting dovetail groove, straight edge and the step structure formed by first recess and second recess on the outer wall of pole, improve the connection firmness between encapsulation part and pole, straight edge and arc transition design of outer wall of pole avoid injection molding bubble, prevent encapsulation from falling off.

Description

Technical Field

[0001] This utility model belongs to the field of battery component technology, specifically, it relates to a coating structure for a positive electrode post. Background Technology

[0002] During battery use, the positive terminal is a crucial conductive component, and its performance and stability are paramount. To improve the insulation, protection, and connection stability between the positive terminal and other components, it is typically coated with adhesive. However, the existing positive electrode post coating structure has the problem that the connection between the coating and the positive electrode post is not strong enough, and the coating is prone to slippage and detachment, which affects the overall performance and safety of the battery.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] To address the problem that existing positive electrode post coating structures suffer from insufficient bonding between the coating and the positive electrode post, leading to coating slippage and detachment, which affects the overall performance and safety of the battery, the basic concept of this utility model is as follows: A positive electrode post with a rubber coating structure includes an electrode post, a base, and a rubber coating component. The base is connected to the bottom of the electrode post. Four dovetail grooves are evenly formed on the electrode post. A first groove and a second groove are formed on the electrode post. The top of the first groove and the bottom of the second groove are connected to form a stepped structure. The outer periphery of the electrode post is coated with a rubber coating component, which fills the four dovetail grooves, the first groove, and the second groove.

[0005] In a preferred embodiment of this utility model, the four dovetail grooves are arranged along the axial direction of the pole post and are formed on the outer wall of the pole post.

[0006] In a preferred embodiment of the present invention, the first groove and the second groove are annular grooves and are formed on the outer wall of the pole post. The first groove is formed below the second groove, and the depth of the first groove is greater than the depth of the second groove.

[0007] In a preferred embodiment of this utility model, the outer wall of the pole post is provided with four straight edges, and an arc is provided between the four straight edges. The four dovetail grooves are respectively opened on the four straight edges.

[0008] In a preferred embodiment of this utility model, the coated part is made of insulating and aging-resistant rubber material, and the outer surface of the coated part is provided with anti-slip texture to improve safety during use.

[0009] In a preferred embodiment of this utility model, the width of the dovetail groove opening is greater than the width of the groove bottom to ensure good fitting strength between the rubber-coated part and the pole post.

[0010] Compared with the prior art, the present invention has the following advantages: This utility model uses a stepped structure formed by a dovetail groove, a straight edge, and a first and a second groove on the outer wall of the electrode post to make the overmolded part fit into the electrode post, thereby improving the connection between the overmolded part and the electrode post. The straight edge and arc transition design of the outer wall of the electrode post avoids injection molding air bubbles and prevents the overmolded part from falling off.

[0011] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0012] In the attached diagram: Figure 1 A three-dimensional diagram of a positive electrode post with a rubber coating structure; Figure 2 This is a schematic diagram of a positive electrode post with a rubber coating structure. Figure 3 A cross-sectional view of a positive electrode post with a rubber coating structure; Figure 4 A positive electrode post with a rubber coating structure Figure 3 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Pole post; 2. Base; 3. Rubber-coated part; 11. Straight edge; 12. Dovetail groove; 13. First groove; 14. Second groove. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0015] like Figures 1 to 4As shown, a positive electrode post with a rubber coating structure includes an electrode post 1, a base 2, and a rubber coating component 3. The bottom of the electrode post 1 is connected to the base 2. Four dovetail grooves 12 are evenly formed on the electrode post 1. A first groove 13 and a second groove 14 are formed on the electrode post 1. The top of the first groove 13 is connected to the bottom of the second groove 14 to form a stepped structure. The outer periphery of the electrode post 1 is coated with a rubber coating component 3, which fills the four dovetail grooves 12, the first groove 13, and the second groove 14. In this configuration, the terminal post 1 serves as the core conductive component, with its bottom connected to the base 2. The base 2 enables stable installation with other battery components, providing support and positioning for the terminal post 1. The dovetail groove 12, the first groove 13, and the second groove 14 on the terminal post 1 cooperate with the external coating 3. The stepped structure formed by the dovetail groove 12, the first groove 13, and the second groove 14 increases the contact area between the two, allowing the coating 3 to lock into the terminal post 1 after filling, thus enhancing its firmness. The coating 3 also provides insulation and protection for the terminal post 1, preventing leakage and corrosion problems.

[0016] like Figures 1 to 4 As shown, in a specific embodiment, four dovetail grooves 12 are arranged along the axial direction of the pole post 1 and are formed on the outer wall of the pole post 1. In this configuration, the dovetail grooves 12 arranged axially on the outer wall of the pole post 1 enhance the bonding force between the two when they cooperate with the rubber-coated part 3, effectively disperse stress, prevent the rubber-coated part 3 from loosening and falling off, and maintain structural stability.

[0017] like Figures 1 to 4 As shown, furthermore, the first groove 13 and the second groove 14 are annular grooves and are formed on the outer wall of the pole post 1. The first groove 13 is formed below the second groove 14, and the depth of the first groove 13 is greater than the depth of the second groove 14. In this configuration, the first groove 13 and the second groove 14 form a stepped structure, so that after the rubber-coated part 3 is filled, it forms a locking with the pole post 1, enhancing the firmness.

[0018] like Figures 1 to 4 As shown, furthermore, the outer wall of the pole post 1 is provided with four straight edges 11, and an arc is provided between the four straight edges 11. Four dovetail grooves 12 are respectively formed on the four straight edges 11. In this configuration, the outer wall of the pole post 1 is provided with four straight edges 11, and the four straight edges 11 are connected by an arc transition. This can avoid the generation of air bubbles at the right-angle edges during injection molding, and the four straight edges 11 can prevent the rotation between the overmolded part 3 and the pole post 1, thereby enhancing the connection between the overmolded part 3 and the pole post 1.

[0019] like Figures 1 to 4As shown, the rubber-coated part 3 is further made of insulating and aging-resistant rubber material, and the outer surface of the rubber-coated part 3 is provided with anti-slip texture to improve safety during use. In this configuration, the rubber-coated part 3, made of insulating and aging-resistant rubber material, provides stable insulation protection for the pole 1 over a long period of time. Its surface anti-slip texture interacts with the operator's hand and the surface of the connecting parts, increasing friction and facilitating operation and installation.

[0020] like Figures 1 to 4 As shown, furthermore, the width of the dovetail groove 12 opening is greater than the width of the groove bottom to ensure good fitting strength between the rubber-coated part 3 and the pole post 1. In this configuration, the dovetail groove 12 and the rubber-coated part 3 form a fastening structure similar to a tenon and mortise after filling, preventing the rubber-coated part 3 from detaching from the pole post 1 and ensuring the long-term stable operation of the rubber-coated structure.

[0021] The implementation principle of the positive electrode post coating structure in this embodiment is as follows: A base 2 is connected to the bottom of the electrode post 1 by welding or integral molding. The base 2 is used to fix the electrode post 1 onto other components of the battery. The cross-sectional area of ​​the base 2 is larger than that of the electrode post 1, which enhances the stability of the overall structure. Four straight edges 11 are provided on the outer wall of the electrode post 1, and the four straight edges 11 are connected by a rounded transition, which can prevent air bubbles from forming at the right-angle edges during injection molding, thus avoiding the coating from falling off and affecting the overall performance of the battery. Four dovetail grooves 12 are evenly provided on the four straight edges 11 along the axial direction of the electrode post 1. The width of the dovetail groove 12 opening is larger than the width of the groove bottom, ensuring good fitting between the coated part 3 and the electrode post 1 after filling. The dovetail grooves 12 and the four straight edges 11 can prevent rotation between the coated part 3 and the electrode post 1, enhancing stability. The connection between the rubber-coated part 3 and the pole post 1 is firm. Simultaneously, the outer wall of the pole post 1 is provided with a first groove 13 and a second groove 14. The first groove 13 and the second groove 14 are annular grooves. The first groove 13 is located below the second groove 14, and the depth of the first groove 13 is greater than the depth of the second groove 14. The top of the first groove 13 connects with the bottom of the second groove 14, forming a stepped structure. In actual production, the rubber-coated part 3 is molded onto the outer periphery of the pole post 1 using injection molding. The rubber-coated part 3 is made of insulating and aging-resistant rubber material. During injection molding, the material of the rubber-coated part 3 fills the four dovetail grooves 12 and the first groove 13 and the second groove 14, ensuring a tight bond between the rubber-coated part 3 and the pole post 1. After molding, the outer surface of the rubber-coated part 3 is pressed with an anti-slip texture using a mold to improve safety during use.

Claims

1. A positive electrode post with a rubber coating structure, comprising an electrode post (1), a base (2), and a rubber-coated component (3), characterized in that, The bottom of the pole post (1) is connected to the base (2). Four dovetail grooves (12) are evenly opened on the pole post (1). A first groove (13) and a second groove (14) are opened on the pole post (1). The top of the first groove (13) is connected to the bottom of the second groove (14) to form a stepped structure. The outer periphery of the pole post (1) is coated with a rubber-coated part (3). The rubber-coated part (3) fills the four dovetail grooves (12) and the first groove (13) and the second groove (14).

2. The coating structure of a positive electrode post according to claim 1, characterized in that, The four dovetail grooves (12) are arranged along the axial direction of the pole post (1) and are formed on the outer wall of the pole post (1).

3. The coating structure of a positive electrode post according to claim 1, characterized in that, The first groove (13) and the second groove (14) are annular grooves and are opened on the outer wall of the pole post (1). The first groove (13) is opened below the second groove (14), and the depth of the first groove (13) is greater than the depth of the second groove (14).

4. The coating structure of a positive electrode post according to claim 1, characterized in that, The outer wall of the pole post (1) is provided with four straight edges (11), and there is an arc between the four straight edges (11). The four dovetail grooves (12) are respectively opened on the four straight edges (11).

5. The coating structure of a positive electrode post according to claim 1, characterized in that, The coated part (3) is made of insulating and aging-resistant rubber material, and the outer surface of the coated part (3) is provided with anti-slip texture to improve safety during use.

6. The coating structure of a positive electrode post according to claim 1, characterized in that, The width of the dovetail groove (12) is greater than the width of the bottom of the groove to ensure good fit strength between the rubber-coated part (3) and the pole post (1).

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