Electrode structure
By setting welding steps on the copper bar and connecting the copper bar with welded parts, and combining rivets to fix the aluminum bar and isolating components to protect the conductive channels, the complex problem of copper bar welding is solved, and electrode preparation efficiency and connection stability are improved.
Patent Information
- Application Number
- CN202421969611.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In the prior art, the welding process between copper bars is complicated, requiring a large space and a large cross-sectional area, resulting in low electrode preparation efficiency.
The first welding step is arranged on the copper row, and the opposite copper row is connected through the welded parts, and the aluminum row is fixed with rivets. The conductive channel is protected using isolation components to simplify the positioning and welding process of the copper row.
The positioning and welding process of copper rows is simplified, the electrode preparation efficiency is improved, and the connection stability and the protection of conductive channels is enhanced.
Smart Images
Figure CN223140978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment fault prediction, in particular to an electrode structure. Background Art
[0002] In the related art, an aluminum bar is helpful for welding with a battery cell, and a copper bar is helpful for welding with a fusible alloy. The aluminum bar and the copper bar are combined and used as an electrode. Among them, the conductive path between different copper bars is usually realized by arranging a bending structure on the copper bar. Specifically, after arranging the bending structure on the copper bar, the alloy welds are respectively welded to the bending structures on the two-side copper bars to form a conductive channel. However, the forming process of the bending structure is complex, relatively requires a large space, and requires a larger cross-sectional area under the same current-carrying capacity. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is: to provide an electrode structure to simplify the welding between copper bars.
[0004] In order to solve the above technical problem, the technical scheme adopted by the utility model is:
[0005] An electrode structure includes a first copper bar, a second copper bar and a welding piece; the first copper bar and the second copper bar are arranged oppositely; at one end of the first copper bar close to the second copper bar, and at one end of the second copper bar close to the first copper bar, first welding steps are arranged; one end of the welding piece is arranged on the first welding step of the first copper bar, and the other end of the welding piece is arranged on the first welding step of the second copper bar.
[0006] Further, it further includes a first aluminum bar and a second aluminum bar; the first aluminum bar is connected with the first copper bar; the second aluminum bar is connected with the second copper bar.
[0007] Further, it further includes rivets; fixing holes are arranged on the first copper bar, the second copper bar, the first aluminum bar and the second aluminum bar; the rivets pass through the fixing holes to connect the first copper bar and the first aluminum bar, and the rivets pass through the fixing holes to connect the second copper bar and the second aluminum bar.
[0008] Further, the first copper bar and the second copper bar are both provided with annular hollow parts; second welding steps are arranged on the inner wall of the annular hollow parts; the first aluminum bar is arranged on the second welding step of the first copper bar; the second aluminum bar is arranged on the second welding step of the second copper bar.
[0009] Further, at least two adjacent first welding steps are respectively arranged on the first copper bar and the second copper bar, and a gap is arranged between the adjacent first welding steps on the same copper bar.
[0010] Furthermore, it further includes an isolation component; the isolation component is disposed between the first copper bar and the second copper bar; the isolation component is provided with an isolation portion, and the isolation portion is disposed in the gap between adjacent first welding steps on the same copper bar.
[0011] Furthermore, the isolation component includes an upper cover and a lower cover; the upper cover and the lower cover are buckled and cover the area between the first copper bar and the second copper bar.
[0012] Furthermore, the isolation component includes an injection molded part and a cover plate; the injection molded part is disposed between the first copper bar and the second copper bar; the injection molded part is provided with an opening, and the cover plate is disposed on the opening of the injection molded part.
[0013] Furthermore, the isolation component further includes an isolation wall; the isolation wall is disposed between the first welding step of the first copper bar and the first welding step of the second copper bar.
[0014] Furthermore, the first copper bar and the first aluminum bar are of a composite tape connection structure, and the second copper bar and the second aluminum bar are of a transition tape connection structure; or the first copper bar and the first aluminum bar are of a transition tape connection structure, and the second copper bar and the second aluminum bar are of a transition tape connection structure.
[0015] The beneficial effects of the present utility model are as follows: By providing first welding steps on both the first copper bar and the second copper bar, it is possible to connect with a welding part by using two oppositely arranged first welding steps. Compared with the related art that uses a bending structure or other connection methods, the positioning and welding alloying process of the copper bar are simplified, and the electrode preparation efficiency is improved. Description of the Drawings
[0016] Figure 1 It is an exploded view of the first structure of an electrode structure in an embodiment of the present utility model;
[0017] Figure 2 It is an assembled view of the first structure of an electrode structure in an embodiment of the present utility model;
[0018] Figure 3 It is an exploded view of the second structure of an electrode structure in an embodiment of the present utility model;
[0019] Figure 4 is Figure 3 an enlarged view of the structure marked as part A in Figure 5 It is an assembled view of the second structure of an electrode structure in an embodiment of the present utility model;
[0020] Figure 6Explosion diagram of the third structure of an electrode structure in an embodiment of the present utility model;
[0021] Label description:
[0022] 1. First copper row; 2. Second copper row; 3. First aluminum row; 4. Second aluminum row; 5. Welding part;
[0023] 6. First welding step; 7. Rivet; 8. Fixing hole;
[0024] 9. Isolation component; 91. Isolation part; 92. Isolation wall; 93. Upper cover; 94. Lower cover; 95. Injection molded part; 96. Cover plate;
[0025] 10. Annular hollow part; 11. Second welding step. Detailed implementation mode
[0026] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with the implementation modes and with reference to the drawings.
[0027] Please refer to Figure 1 , an electrode structure, comprising a first copper row, a second copper row and a welding part; the first copper row and the second copper row are arranged opposite to each other; at one end of the first copper row close to the second copper row, and at one end of the second copper row close to the first copper row, a first welding step is provided; one end of the welding part is arranged on the first welding step of the first copper row, and the other end of the welding part is arranged on the first welding step of the second copper row.
[0028] It can be seen from the above description that the beneficial effect of the present utility model is that by providing first welding steps on both the first copper row and the second copper row, the two relatively arranged first welding steps can be used to connect with the welding part, which simplifies the positioning and welding process of the copper row compared with the related art through a bending structure or other connection methods, and improves the electrode preparation efficiency.
[0029] Furthermore, it further comprises a first aluminum row and a second aluminum row; the first aluminum row is connected to the first copper row; the second aluminum row is connected to the second copper row.
[0030] It can be seen from the above description that the first copper row and the second copper row are respectively connected to the first aluminum row and the second aluminum row, and the aluminum row is helpful for welding with the battery cell, and the copper row is helpful for welding with the fusible alloy and has small resistance and is beneficial for current carrying.
[0031] Furthermore, it further comprises a rivet; fixing holes are provided on the first copper row, the second copper row, the first aluminum row and the second aluminum row; the rivet passes through the fixing holes to connect the first copper row and the first aluminum row, and the rivet passes through the fixing holes to connect the second copper row and the second aluminum row.
[0032] As can be seen from the above description, by providing fixing holes on the first copper row, the second copper row, the first aluminum row, and the second aluminum row, and fixing the copper row and the aluminum row by means of rivets, the stability of the connection between the copper row and the aluminum row is improved.
[0033] Furthermore, the first copper row and the second copper row are both provided with annular hollowed-out parts; the inner wall of the annular hollowed-out part is provided with a second welding step; the first aluminum row is arranged on the second welding step of the first copper row; the second aluminum row is arranged on the second welding step of the second copper row.
[0034] As can be seen from the above description, by providing an annular hollowed-out part inside the copper row and a second welding step on the inner wall of the annular hollowed-out part, the aluminum row can be welded to the second welding step, improving the stability of the connection between the copper row and the aluminum row; that is, the copper row and the aluminum row can be connected by means of rivets or welded by means of the stepped method of annular hollowing.
[0035] Furthermore, at least two adjacent first welding steps are respectively provided on the first copper row and the second copper row; a gap is provided between the adjacent first welding steps on the same copper row.
[0036] Furthermore, an isolation component is further included; the isolation component is arranged between the first copper row and the second copper row; the isolation component is provided with an isolation part, and the isolation part is arranged in the gap between the adjacent first welding steps.
[0037] As can be seen from the above description, by having an isolation part on the isolation component and arranging the isolation part in the gap between the adjacent first welding steps, the conductive channels formed by different first welding steps can be isolated.
[0038] Furthermore, the isolation component includes an upper cover and a lower cover; the upper cover and the lower cover are buckled and cover the area between the first copper row and the second copper row.
[0039] As can be seen from the above description, an isolation component is composed of an upper cover and a lower cover, and the conductive channels between the first copper row and the second copper row are protected by buckling, so as to effectively protect the conductive channels.
[0040] Furthermore, the isolation component includes an injection molding part and a cover plate; the injection molding part is arranged between the first copper row and the second copper row; the injection molding part is provided with an opening, and the cover plate is arranged on the opening of the injection molding part.
[0041] As can be seen from the above description, using the injection molding part and the cover plate as the isolation component, compared with the split upper cover and lower cover structure, the electrode structure has better sealing performance.
[0042] Further, the isolation component further includes an isolation wall; the isolation wall is disposed between the first welding step of the first copper bar and the first welding step of the second copper bar.
[0043] As can be seen from the above description, by providing an isolation wall on the isolation component, the arc generated between the relatively arranged first welding steps can be isolated.
[0044] Further, the first copper bar and the second copper bar have the same structure.
[0045] As can be seen from the above description, by setting the first copper bar and the second copper bar to have the same structure, any first copper bar and second copper bar can form a pair to form an electrode structure.
[0046] Further, the first copper bar and the first aluminum bar are of a composite strip connection structure, and the second copper bar and the second aluminum bar are of a transition strip connection structure; or the first copper bar and the first aluminum bar are of a transition strip connection structure, and the second copper bar and the second aluminum bar are of a transition strip connection structure.
[0047] The electrode structure provided by the present invention can be used as an electrode for overheat protection of the battery cell, which will be described below through specific embodiments:
[0048] Embodiment 1
[0049] Please refer to Figure 1 and Figure 2 , an electrode structure, including a first copper bar 1, a second copper bar 2, a first aluminum bar 3, a second aluminum bar 4, a welding piece 5, and an isolation component 9; the first copper bar 1 and the second copper bar 2 are relatively arranged; at one end of the first copper bar 1 close to the second copper bar 2 and at one end of the second copper bar 2 close to the first copper bar 1, first welding steps 6 are provided; one end of the welding piece 5 is disposed on the first welding step 6 of the first copper bar 1, and the other end of the welding piece 5 is disposed on the first welding step 6 of the second copper bar 2; the first aluminum bar 3 is disposed on the first copper bar 1, the second aluminum bar 4 is disposed on the second copper bar 2, and the copper bar and the aluminum bar can be connected by welding; the isolation component 9 is disposed between the first copper bar 1 and the second copper bar 2; the isolation component 9 is provided with an isolation portion 91 and an isolation wall 92, the isolation portion 91 is disposed in the gap between adjacent first welding steps 6 on the same copper bar, and the isolation wall 92 is disposed between the first welding step 6 of the first copper bar 1 and the first welding step 6 of the second copper bar 2. Among them, at least two adjacent first welding steps 6 are respectively provided on the first copper bar 1 and the second copper bar 2, and a gap is provided between adjacent first welding steps 6 on the same copper bar. As Figure 1As shown in the figure, on one side of the first copper bar 1 close to the second copper bar 2, there are 4 first welding steps 6. Two adjacent first welding steps 6 form a group, and there is a gap between adjacent first welding steps within the group; and the first copper bar 1 and the second copper bar 2 have the same structure. At the same time, the arrangement of the first welding steps 6 can be adjusted according to the specific usage scenario, such as arranging them in the same row. In this embodiment, the welding part 5 is made of an alloy and has an over-temperature protection function.
[0050] In an alternative embodiment, to improve the connection stability between the copper bar and the aluminum bar, the first copper bar 1 and the first aluminum bar 3 are connected, and the second copper bar 2 and the second aluminum bar 4 are connected by setting rivets; fixing holes 8 are provided on the first copper bar 1, the second copper bar 2, the first aluminum bar 3, and the second aluminum bar 4; the rivet passes through the fixing holes 8 on the first copper bar 1 and the first aluminum bar 3 to fixedly connect the first copper bar 1 and the first aluminum bar 3, and the rivet passes through the fixing holes 8 on the second copper bar 2 and the second aluminum bar 4 to fixedly connect the second copper bar 2 and the second aluminum bar 4.
[0051] In an alternative embodiment, the isolation component 9 includes an upper cover 93 and a lower cover 94; the upper cover 93 and the lower cover 94 are buckled and cover the area between the first copper bar 1 and the second copper bar 2. As Figure 1 shown, the upper cover 93 is provided with an isolation part 91 and an isolation wall 92, and the isolation part 91 and the isolation wall 92 form a cross-shaped blocking structure for isolating adjacent first welding steps 6 on the same copper bar and isolating adjacent first welding steps 6 on different copper bars.
[0052] Embodiment 2
[0053] The difference between this embodiment and Embodiment 1 is that an integrated isolation component 9 structure is adopted, and the specific structure is as follows: Please refer to Figures 3 - 5 , the isolation component 9 includes an injection molded part 95 and a cover plate 96; the injection molded part 95 is arranged between the first copper bar 1 and the second copper bar 2; the injection molded part 95 is provided with an opening, and the cover plate 96 is arranged on the opening of the injection molded part 95. The isolation component 9 is integrally formed with the copper bar structure, making the overall structure of the electrode have better sealing performance; among them, an isolation part 91 and an isolation wall 92 structure are formed inside the injection molded part 95, and a cross structure of the isolation part 91 and the isolation wall 92 that cooperates with it is also formed on the cover plate 96. As Figure 3 shown, a groove is provided on the isolation part 91 structure of the injection molded part 95, and a convex block is provided on the isolation part 91 structure of the cover plate 96. Through the cooperation of the groove and the convex block, not only the injection molded part 95 and the cover plate 96 are buckled, but also a complete isolation part 91 structure is formed to isolate adjacent first welding steps 6 on the same copper bar.
[0054] Embodiment 3
[0055] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the copper bar and the aluminum bar are connected by welding. The specific structure is as follows:
[0056] Please refer to Figure 6 , both the first copper bar 1 and the second copper bar 2 are provided with an annular hollow part 10; a second welding step 11 is arranged on the inner wall of the annular hollow part 10; the first aluminum bar 3 is arranged on the second welding step 11 of the first copper bar 1; the second aluminum bar 4 is arranged on the second welding step 11 of the second copper bar 2. At the same time, the height, quantity, direction of the second welding step 11 and the thickness of the aluminum bar can be adjusted according to actual setting requirements, and the shapes of the second welding step 11, the annular hollow part 10 and the aluminum bar can also be adjusted; for example, the sum of the height of the second welding step 11 and the thickness of the aluminum bar is equal to the thickness of the copper bar, and the annular hollow part 10 and the aluminum bar are set in rectangular shapes or the like. At the same time, the aluminum bars can also be respectively arranged on different sides or the same side of different copper bars; as Figure 6 shown, the aluminum bars are all arranged on the upper side of the copper bar. In another optional implementation manner, for example, in the first copper bar 1, the second welding step 11 is set to face upward so that the aluminum bar is arranged on the upper side of the copper bar; in the second copper bar 2, the second welding step 11 is set to face downward so that the aluminum bar is arranged on the lower side of the copper bar.
[0057] Setting the second welding step on the copper bar in this embodiment can achieve the following effects:
[0058] 1. It is beneficial to the processing and forming of the copper bar;
[0059] 2. It is beneficial to the positioning of the aluminum bar;
[0060] 3. It is beneficial to the welding of the aluminum bar.
[0061] Embodiment 4
[0062] The difference between this embodiment and Embodiment 1, Embodiment 2 or Embodiment 3 is that the copper bar and the aluminum bar are an integrally formed composite strip or transition strip, and first welding steps are provided at the relative ends of the relatively arranged first copper bar and second copper bar. It should be noted that the connection methods of the copper bar and the aluminum bar in the above four embodiments can be cooperated with each other as needed.
[0063] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be included in the patent protection scope of the present invention by the same token.
Claims
1. An electrode structure, characterized in that, It includes a first copper row, a second copper row and a welding piece; The first copper row and the second copper row are arranged oppositely; At one end of the first copper row close to the second copper row and at one end of the second copper row close to the first copper row, first welding steps are provided; One end of the welding piece is arranged on the first welding step of the first copper row, and the other end of the welding piece is arranged on the first welding step of the second copper row.
2. The electrode structure according to claim 1, wherein It further includes a first aluminum row and a second aluminum row; The first aluminum row is connected to the first copper row; The second aluminum row is connected to the second copper row.
3. An electrode structure according to claim 2, characterized in that, It further includes rivets; Fixing holes are provided on the first copper row, the second copper row, the first aluminum row and the second aluminum row; The rivets pass through the fixing holes to connect the first copper row and the first aluminum row, and the rivets pass through the fixing holes to connect the second copper row and the second aluminum row.
4. An electrode structure according to claim 2, characterized in that, The first copper row and the second copper row are both provided with annular hollowed-out parts; Second welding steps are provided on the inner wall of the annular hollowed-out part; The first aluminum row is arranged on the second welding step of the first copper row; The second aluminum row is arranged on the second welding step of the second copper row.
5. An electrode structure according to claim 1, characterized in that At least two adjacent first welding steps are respectively provided on the first copper row and the second copper row, and a gap is provided between the adjacent first welding steps on the same copper row.
6. An electrode structure according to claim 5, wherein It further includes an isolation component; The isolation component is arranged between the first copper row and the second copper row; The isolation component is provided with an isolation part, and the isolation part is arranged in the gap between the adjacent first welding steps on the same copper row.
7. An electrode structure according to claim 6, characterized in that, The isolation component includes an upper cover and a lower cover; The upper cover and the lower cover are buckled and cover the area between the first copper row and the second copper row.
8. An electrode structure according to claim 6, characterized in that, The isolation component includes an injection molding part and a cover plate; The injection molding part is arranged between the first copper row and the second copper row; The injection molding part is provided with an opening, and the cover plate is arranged on the opening of the injection molding part.
9. An electrode structure according to claim 6, wherein The isolation component further includes an isolation wall; The isolation wall is arranged between the first welding step of the first copper row and the first welding step of the second copper row.
10. An electrode structure according to claim 2, characterized in that, The first copper row and the first aluminum row are of a composite belt connection structure, and the second copper row and the second aluminum row are of a transition belt connection structure; or the first copper row and the first aluminum row are of a transition belt connection structure, and the second copper row and the second aluminum row are of a transition belt connection structure.