Novel internal conductive device for cathode roller

Abstract

The utility model discloses a novel internal conductive device for a cathode roller, which relates to the technical field of copper foil manufacturing and comprises a cathode roller core, a conductive component is arranged on the cathode roller core and comprises three center plates, a plurality of copper rods are fixedly arranged on two sides of each center plate, the copper rods are L-shaped, and contacts are fixedly arranged at the ends of the copper rods. The conductive ring is electrified, current flows through the center plate, one part of the current directly flows through the steel cylinder from the center plate, the other part of the current flows through the copper rod and then flows through the steel cylinder from the contacts on the copper rod, and the contacts are uniformly distributed on the inner side of the steel cylinder, so that the current is uniformly diffused, and the thickness difference of copper foil is extremely small due to the uniformity of conduction in the cathode roller; and the yield and the yield of the electrolytic copper foil are improved.

Description

Technical Field

[0001] This utility model relates to the field of copper foil manufacturing, and in particular to a novel internal conductive device for a cathode roller. Background Technology

[0002] Cathode rollers are a typical example of high-tech electrolytic copper chemical equipment and are core equipment for new energy lithium battery copper foil. In particular, the high conductivity and uniformity of cathode rollers are an important indicator of a company's design and technological capabilities and process level.

[0003] In existing technologies, the cathode roller uses a web for conductivity, which results in uneven conductivity distribution and significant differences in copper foil thickness. This leads to substandard copper foil quality, causing problems during winding and peeling. Consequently, product quality deteriorates, costs increase, and efficiency decreases. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as large differences in copper foil thickness, by proposing a novel internal conductive device for cathode rollers.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A novel internal conductive device for a cathode roller includes a cathode roller core with a conductive assembly. The conductive assembly includes three plates, with multiple copper rods fixedly mounted on both sides of each plate. Each copper rod is L-shaped and has a contact point fixedly mounted at its end. A steel cylinder is fixedly mounted on the outer side of each plate, and the contacts are fixedly connected to the inner side of the steel cylinder. A titanium cylinder is fixedly mounted on the outer side of the steel cylinder, with end caps at both ends. Multiple rivets are inserted into the end caps, and a pair of end caps are fixed to the ends of the titanium cylinder by the rivets. Multiple reinforcing ribs are fixedly mounted on one side of each end cap, with one end of each reinforcing rib tightly attached to the inner wall of the steel cylinder.

[0007] Preferably, a pair of conductive rings are fixedly provided on the cathode roller core.

[0008] Preferably, a pair of titanium sleeves are fixedly provided on the cathode roller core.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. In this utility model, the conductive ring is energized, and the current flows through the web plate. Part of the current flows directly from the web plate through the steel cylinder, and the other part of the current flows through the copper rod and then through the contacts on the copper rod through the steel cylinder. Since the contacts are evenly distributed on the inner side of the steel cylinder, the current is evenly distributed. The uniformity of conductivity inside the cathode roller makes the difference in copper foil thickness extremely small, thereby improving the yield and quality of electrolytic copper foil.

[0011] 2. In this utility model, the cathode roller is equipped with multiple copper rods and multiple reinforcing ribs, which have a compact structure and good support. It can meet the quality and size requirements of copper foil for different types of lithium batteries. The end cap is connected to the titanium cylinder by rivets. The roller body has an open structure on the side, which makes maintenance and replacement simpler. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 These are schematic diagrams showing the cross-sectional views of the steel cylinder and titanium cylinder of this utility model.

[0015] Figure 3 This is a schematic diagram showing the positional relationship between the web, copper rod, and contact points of this utility model;

[0016] Figure 4 This is a schematic diagram of the reinforcing rib structure of this utility model.

[0017] The numbers in the diagram are: 1. Cathode roller core; 2. Web plate; 3. Copper rod; 4. Contact point; 5. Steel cylinder; 6. Titanium cylinder; 7. End cap; 8. Rivet; 9. Reinforcing rib; 10. Conductive ring; 11. Titanium sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1: This example provides a novel internal conductive device for a cathode roller. See [link to example]. Figure 1-4 Specifically, it includes a cathode roller core 1, a conductive component on the cathode roller core 1, the conductive component includes three web plates 2, multiple copper rods 3 are fixed on both sides of the web plates 2, the copper rods 3 are all L-shaped, the ends of the copper rods 3 are all fixed with contact points 4, a steel cylinder 5 is fixed on the outside of the web plates 2, the contact points 4 are all fixedly connected to the inside of the steel cylinder 5, and a titanium cylinder 6 is fixed on the outside of the steel cylinder 5.

[0020] A pair of conductive rings 10 are fixedly provided on the cathode roller core 1, and a pair of titanium sleeves 11 are fixedly provided on the cathode roller core 1;

[0021] When the conductive ring 10 is energized, the current flows through the web plate 2. Part of the current flows directly from the web plate 2 through the steel cylinder 5, and the other part flows through the copper rod 3, and then from the contact point 4 on the copper rod 3 through the steel cylinder 5. Since the contact point 4 is evenly distributed on the inner side of the steel cylinder 5, the current is evenly distributed. The uniformity of conductivity inside the cathode roller makes the difference in copper foil thickness extremely small, thereby improving the yield and quality of electrolytic copper foil.

[0022] Example 2: Based on Example 1, this example also includes:

[0023] In the specific implementation process, such as Figure 1 and Figure 4 As shown, both ends of the titanium cylinder 6 are provided with end caps 7, and multiple rivets 8 are inserted on the end caps 7. A pair of end caps 7 are fixed to the end of the titanium cylinder 6 by the rivets 8. Multiple reinforcing ribs 9 are fixed on one side of the end caps 7, and one end of the reinforcing ribs 9 is tightly attached to the inner wall of the steel cylinder 5.

[0024] The cathode roller has multiple copper rods 3 and multiple reinforcing ribs 9 inside, with a compact structure and good support, which can meet the quality and size requirements of copper foil for different types of lithium batteries. The end cap 7 is connected to the titanium cylinder 6 by rivets 8. The open structure on the side of the roller body makes maintenance and replacement simpler.

[0025] Specifically, the working principle and operation method of this utility model are as follows:

[0026] When the conductive ring 10 is energized, the current flows through the web plate 2. Part of the current flows directly from the web plate 2 through the steel cylinder 5, and the other part flows through the copper rod 3, and then from the contact point 4 on the copper rod 3 through the steel cylinder 5. Since the contact point 4 is evenly distributed on the inner side of the steel cylinder 5, the current is evenly distributed. The uniformity of conductivity inside the cathode roller makes the difference in copper foil thickness extremely small, thereby improving the yield and quality of electrolytic copper foil.

[0027] The cathode roller has multiple copper rods 3 and multiple reinforcing ribs 9 inside, with a compact structure and good support, which can meet the quality and size requirements of copper foil for different types of lithium batteries. The end cap 7 is connected to the titanium cylinder 6 by rivets 8. The open structure on the side of the roller body makes maintenance and replacement simpler.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A novel internal conductive device for a cathode roller, comprising a cathode roller core (1), characterized in that: The cathode roller core (1) is provided with a conductive component; The conductive component includes three plates (2), and multiple copper rods (3) are fixed on both sides of each plate (2). Each copper rod (3) is L-shaped, and each copper rod (3) has a contact point (4) fixed at its end. A steel cylinder (5) is fixedly provided on the outside of the plate (2), and the contact points (4) are all fixedly connected to the inside of the steel cylinder (5). A titanium cylinder (6) is fixedly provided on the outside of the steel cylinder (5).

2. A novel internal conductive device for a cathode roller according to claim 1, characterized in that: Both ends of the titanium cylinder (6) are provided with end caps (7), and multiple rivets (8) are inserted on the end caps (7). A pair of end caps (7) are fixed to the end of the titanium cylinder (6) by the rivets (8).

3. A novel internal conductive device for a cathode roller according to claim 2, characterized in that: Multiple reinforcing ribs (9) are fixedly provided on one side of the end cap (7), and one end of the reinforcing rib (9) is tightly attached to the inner wall of the steel cylinder (5).

4. A novel internal conductive device for a cathode roller according to claim 1, characterized in that: A pair of conductive rings (10) are fixedly provided on the cathode roller core (1).

5. A novel internal conductive device for a cathode roller according to claim 1, characterized in that: A pair of titanium sleeves (11) are fixedly provided on the cathode roller core (1).

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