Spoke type cathode roller conductive structure
By using a spoke-type cathode roller conductive structure, which employs a combination design of copper sleeve, busbar copper plate and spokes, the problems of high material cost, serious redundancy, uneven current distribution and inconvenient maintenance of cathode roller conductive structures are solved, achieving the effects of lightweight, low cost, high efficiency conductivity and easy maintenance.
Patent Information
- Application Number
- CN202520404884.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The existing conductive structure of cathode rollers suffers from problems such as high material costs, significant material redundancy, uneven current distribution, excessive equipment weight, and poor maintenance flexibility.
It adopts a spoke-type cathode roller conductive structure, which combines copper sleeve, busbar copper plate and spokes, and is connected by screws. The two ends of the spokes are tin-plated to ensure uniform current distribution and facilitate disassembly and maintenance.
Significantly reduces material costs and weight, improves conductivity, enhances corrosion resistance, simplifies maintenance, and meets high current density requirements.
Smart Images

Figure CN223898770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conductive structure technology, specifically to a spoke-type cathode roller conductive structure. Background Technology
[0002] Currently, the conductive structure of the cathode roller mainly uses a single, integral copper plate on the side for current conduction. While this technology transfers current from the copper sleeve to the copper layer of the cathode roller through a single copper plate, achieving basic conductivity, it suffers from the following significant drawbacks:
[0003] 1. High material costs: The entire copper plate requires a large amount of copper, resulting in high manufacturing costs;
[0004] 2. Significant material redundancy: The integral copper plate design contains a large number of unnecessary areas, resulting in low material utilization and resource waste;
[0005] 3. Uneven current distribution: Due to the simple structure of the entire copper plate, the current conduction path is concentrated, which can easily lead to an increase in local resistance and affect the conductivity efficiency.
[0006] 4. Excessive equipment weight: The bulky structure of the copper plate increases the overall weight of the cathode roller, making it difficult to install, transport, and maintain.
[0007] 5. Poor maintenance flexibility: The integrated copper plate is difficult to disassemble or replace in parts, and the whole plate needs to be replaced when it fails, resulting in high maintenance costs and time consumption.
[0008] Therefore, in view of this, we studied and improved the existing structure and proposed a spoke-type cathode roller conductive structure. Utility Model Content
[0009] The technical problems to be solved by this utility model are high material costs, serious material redundancy, uneven current distribution, excessive equipment weight, and poor maintenance flexibility.
[0010] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a spoke-type cathode roller conductive structure, including a cathode roller copper layer for receiving current and completing the conductive process, copper sleeves are provided on both sides of the cathode roller copper layer for introducing current, and several busbar copper plates are fixedly provided on both sides of the cathode roller copper layer for conducting current from the spokes to the cathode roller copper layer, and several spokes are provided between the copper sleeves and the corresponding busbar copper plates.
[0011] As a further embodiment of this utility model: one end of the spoke is fixed to the copper sleeve by a number of screws, and the other end of the spoke is fixed to the busbar copper plate by a number of screws. Furthermore, one end of the spoke and the copper sleeve are provided with mounting holes for screws to pass through, and the other end of the spoke and the busbar copper plate are provided with mounting holes for screws to pass through.
[0012] As a further embodiment of this utility model: the number of spokes is 36, which are evenly distributed between the copper sleeve and the busbar copper plate.
[0013] As a further embodiment of this utility model: the number of busbar copper plates is 12, and each busbar copper plate is connected to multiple spokes.
[0014] As a further aspect of this utility model: the spokes are made of copper, and the connection points at both ends with the copper sleeve and the busbar copper plate are tin-plated to enhance conductivity and corrosion resistance.
[0015] As a further aspect of this invention, the spokes are distributed radially to ensure uniform current distribution and efficient conduction to the cathode roller copper layer.
[0016] As a further embodiment of this invention, the structure is suitable for high current density cathode roller equipment, which can significantly reduce material costs while ensuring conductivity.
[0017] As a further aspect of this invention, the length and width of the spokes are optimized according to the current magnitude and the size of the cathode roller to ensure optimal conductivity and structural stability.
[0018] Compared with the prior art, the advantages of this utility model are as follows:
[0019] 1. Significantly reduced material costs: The design uses 36 copper spokes and 12 busbar copper plates, replacing the traditional single copper plate, thus greatly reducing the amount of copper used. Through the spoke-like distributed layout, copper is used only in necessary areas, solving the problems of high material costs and significant material redundancy in the prior art, saving manufacturing costs by more than 30%.
[0020] 2. Optimized Current Distribution and Conductivity: The defined, uniformly distributed, and radially arranged spokes, combined with the current-diverting effect of the busbar, ensure a dispersed and uniform current conduction path. This design effectively avoids the uneven current distribution and localized resistance increases caused by the concentrated path in traditional single-piece copper plates, improving conductivity by approximately 15%.
[0021] 3. Reduce equipment weight and improve portability: The spoke structure reduces the weight by more than 40% compared to the integral copper plate, significantly reducing the overall weight of the cathode roller and solving the problem of excessive equipment weight in the background technology, making it easier to install, transport and maintain.
[0022] 4. Enhanced structural maintainability: The screw connection method and detachable design allow for the individual removal or replacement of components such as spokes and busbars. This feature completely solves the problem of poor maintenance flexibility in traditional integrated copper plates, reducing local maintenance costs by 50% and shortening maintenance time by 60%.
[0023] 5. Enhanced corrosion resistance and service life: The joints at both ends of the spokes are tin-plated, which, combined with the inherent corrosion resistance of copper, effectively reduces oxidation and increases in contact resistance. This design extends the service life of the conductive structure, making it particularly suitable for high-humidity or corrosive industrial environments.
[0024] 6. Adaptable to high current density requirements: The length and width of the spokes can be optimized according to the current and the size of the cathode roller to ensure stable conductivity under high current density conditions, while avoiding local overheating problems caused by overload in traditional structures. Attached Figure Description
[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0026] Figure 1 This is a front view of a spoke-type cathode roller conductive structure according to this utility model.
[0027] Figure 2 This is a side view of a spoke-type cathode roller conductive structure according to the present invention.
[0028] Figure 3 This is a schematic diagram of the overall structure of a spoke-type cathode roller conductive structure according to this utility model.
[0029] In the attached image:
[0030] 1. Copper sleeve; 2. Screw one; 3. Spoke; 4. Screw two; 5. Busbar copper plate; 6. Cathode roller copper layer. Detailed Implementation
[0031] 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.
[0032] Please see Figure 1-3A spoke-type cathode roller conductive structure includes a cathode roller copper layer 6, which receives current and completes the conduction process, located at the core of the cathode roller. Copper sleeves 1 are provided on both sides of the cathode roller copper layer 6 for introducing current. Several busbar copper plates 5 are fixedly provided on both sides of the cathode roller copper layer 6 for conducting current from spokes 3 to the cathode roller copper layer 6. There are 12 busbar copper plates 5, and each busbar copper plate 5 connects to multiple spokes 3. Several spokes 3 are provided between the copper sleeves 1 and the corresponding busbar copper plates 5. The spokes 3 are made of copper, and the connection points at both ends with the copper sleeves 1 and the busbar copper plates 5 are tin-plated to enhance conductivity and corrosion resistance. The spokes 3 are distributed radially to ensure uniform current distribution and efficient conduction to the cathode roller copper layer 6.
[0033] Please see Figure 1-3 There are 36 spokes 3, evenly distributed between the copper sleeve 1 and the busbar copper plate 5. The 36 spokes 3 are evenly distributed radially to ensure that the current is evenly distributed during conduction, avoiding local overheating or increased resistance. One end of the spoke 3 is fixed to the copper sleeve 1 by several screws 2, and the other end of the spoke 3 is fixed to the busbar copper plate 5 by several screws 4. One end of the spoke 3 and the copper sleeve 1 are provided with mounting holes 1 through which the screws 2 pass, and the other end of the spoke 3 and the busbar copper plate 5 are provided with mounting holes 2 through which the screws 4 pass. Screws 2 and 4 are used to fix the connection between the spoke 3 and the copper sleeve 1 and the busbar copper plate 5, ensuring the stability of current conduction. At the same time, it is convenient for partial disassembly, replacement or maintenance, significantly reducing maintenance costs and time.
[0034] Please see Figure 1-3 The structure is suitable for high current density cathode roller equipment, and can significantly reduce material costs while ensuring conductivity. The length and width of the spokes 3 are optimized according to the current and the size of the cathode roller to ensure the best conductivity and structural stability.
[0035] The working principle of this utility model:
[0036] This invention relates to a spoke-type cathode roller conductive structure suitable for high current density cathode roller equipment, particularly for electrolytic copper foil production and electroplating equipment. Its lightweight, high efficiency, and low cost give it significant advantages in industrial applications.
[0037] The specific path of current conduction is as follows: the current is introduced into the copper sleeve 1 from the external power source; it is conducted to the 36 spokes 3 through the screw 2; the spokes 3 conduct the current to the busbar copper plate 5; the busbar copper plate 5 evenly distributes the current and conducts it to the cathode roller copper layer 6, completing the conduction process.
[0038] Taking electrolytic copper foil production equipment as an example, the specific implementation steps are as follows:
[0039] 1. Install the copper sleeve 1 on both sides of the copper layer 6 of the cathode roller and connect it to the external power supply;
[0040] 2. Distribute the 36 spokes 3 evenly and fix them to the copper sleeve 1 and the busbar copper plate 5 respectively by screw 1 2 and screw 2 4;
[0041] 3. Fix the 12 busbar copper plates 5 to the side of the cathode roller copper layer 6, ensuring that they are tightly connected to the spokes 3;
[0042] 4. Tin plating is performed at the connection points to complete the installation of the conductive structure;
[0043] 5. Start the equipment. The current is conducted through the copper sleeve 1, spokes 3, and busbar copper plate 5 to the cathode roller copper layer 6, achieving high-efficiency conductivity.
[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A spoke-type cathode roller conductive structure, characterized in that: It includes a cathode roller copper layer (6), and copper sleeves (1) are provided on both sides of the cathode roller copper layer (6). Several busbar copper plates (5) are fixedly provided on both sides of the cathode roller copper layer (6). Several spokes (3) are provided between the copper sleeves (1) and the corresponding busbar copper plates (5).
2. The spoke-type cathode roller conductive structure according to claim 1, characterized in that: One end of the spoke (3) is fixed to the copper sleeve (1) by a number of screws (2), and the other end of the spoke (3) is fixed to the busbar copper plate (5) by a number of screws (4). One end of the spoke (3) and the copper sleeve (1) are provided with mounting holes for screws (2) to pass through, and the other end of the spoke (3) and the busbar copper plate (5) are provided with mounting holes for screws (4) to pass through.
3. The spoke-type cathode roller conductive structure according to claim 1, characterized in that: The number of spokes (3) is 36, which are evenly distributed between the copper sleeve (1) and the busbar copper plate (5).
4. The spoke-type cathode roller conductive structure according to claim 1, characterized in that: The number of busbars (5) is 12, and each busbar (5) is connected to multiple spokes (3).
5. The spoke-type cathode roller conductive structure according to claim 1, characterized in that: The spokes (3) are made of copper, and both ends of the spokes are tin-plated at the connection points with the copper sleeve (1) and the busbar copper plate (5).
6. The spoke-type cathode roller conductive structure according to claim 3, characterized in that: The spokes (3) are distributed radially to ensure that the current is evenly distributed and efficiently conducted to the cathode roller copper layer (6).