A horizontal electroplating cathode brush wheel, assembly and apparatus

Abstract

The present application relates to the field of solar cell coating, and discloses a horizontal type electroplating cathode brush wheel, which comprises a conveying conductive half wheel and a limiting elastic half wheel. The conveying conductive half wheel comprises a pawl code and a flexible conductive brush. The limiting elastic half wheel comprises a spring piece for avoiding the flexible conductive brush from being scratched after becoming hard. The present application also discloses a horizontal type electroplating cathode assembly, which comprises a conductive roller upper assembly, a conductive roller lower assembly, a transmission wheel set, a conductive assembly and a fixing piece. The brush wheel is arranged on the conductive roller upper and lower assemblies. The present application further discloses a horizontal type electroplating cathode device provided with the above-mentioned electroplating cathode assembly, and the device is provided with a protective cover and a liquid removing mechanism for reducing the flow of plating liquid into the electroplating cathode assembly. The present application not only can transmit current to the solar cell and transport the solar cell, but also can protect the solar cell from being scratched.

Description

Technical Field

[0001] This invention relates to the field of solar cell coating, and in particular to a horizontal electroplating cathode roller. Background Technology

[0002] During the manufacturing process of solar cells, a metal layer needs to be electroplated onto their surface. This is primarily accomplished using horizontal electroplating cathode devices. Currently, traditional horizontal electroplating cathode devices consist of conductive metal rollers or conductive metal brushes. During electroplating, these rollers or brushes contact the copper substrate on the solar cell, transferring the cathode current from the rectified power supply to the copper surface. This causes metal ions to be reduced and deposited on the cell surface, forming a uniform and dense metal coating. The conductive metal rollers not only transfer the current to the solar cell but also act as a conduit for the cell's structure.

[0003] However, during the electroplating process, the conductive metal rollers in contact with the plating solution may become coated with a layer, and since the surface of these rollers is often hard, this can lead to them malfunctioning over time. Using conductive metal rollers also requires regular disassembly and deplating maintenance, resulting in unnecessary waste of manpower and time. While conductive metal brushes use soft metal bristles to conduct electricity in contact with the copper substrate of the battery cell, they also come into contact with some of the plating solution during the electroplating process, causing some of the bristles to become coated with copper. Over time, as the plating layer thickens, the metal bristles harden. When the battery cell enters the brush, the hardened bristles can easily scratch the copper substrate. The increased friction between the metal brush and the battery cell during transport can cause the battery cell to drift or become stuck. The traditional method of using conductive metal rollers or brushes as the conductive cathode in horizontal electroplating for solar cell production suffers from high maintenance costs, low equipment stability, and low product yield. This necessitates significant investment of manpower and resources in both production and operation, hindering mass production on automated lines. Furthermore, failure to promptly replace the brushes for stripping can scratch the copper substrate of the solar cells, increasing the risk of product defects. Therefore, there is an urgent market need for a new horizontal electroplating cathode device to complete the electroplating of solar cells while avoiding the problems associated with existing devices. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of scratching the copper base of the battery cell during the electroplating process, which is not conducive to mass production in automated production lines. The invention provides a horizontal electroplating cathode roller, component and equipment, which can not only transmit current to the battery cell and transport the battery cell, but also protect the battery cell from being scratched.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention discloses a horizontal electroplating cathode roller, which includes a conveying conductive half-roller and a limiting elastic half-roller.

[0007] The conductive half-roller includes a first roller pad, a claw code, a flexible conductive brush, and a limiting post; the claw code is rotatably disposed on the inner side of the first roller pad, and the flexible conductive brush is disposed on the outer end of the claw code.

[0008] The limiting elastic half-wheel includes a second roller pad and a spring piece; one end of the spring piece is disposed on the inner side of the second roller pad, and the other end abuts against one side of the pawl code; the other side of the pawl code is provided with a limiting post for preventing the pawl code from rotating to one side; the limiting post is fixed on the inner side of the first roller pad.

[0009] The end of the flexible conductive brush extends beyond the outer edge of the first roller pad and the second roller pad.

[0010] Furthermore, the flexible conductive brush is made of metal wire or carbon fiber.

[0011] Furthermore, the flexible conductive brush is detachably mounted on the claw code by bolts.

[0012] Furthermore, the pawl code is connected to the first roller pad via a rotating shaft, which passes through both the first roller pad and the pawl code, and a limit snap ring is provided at its end.

[0013] Furthermore, in addition to the flexible conductive brush, all other components of the roller brush wheel are provided with an insulating adhesive layer on their exterior.

[0014] The present invention also discloses a horizontal electroplating cathode assembly, which includes an upper conductive roller assembly and a lower conductive roller assembly that are in contact with the electroplating product, a transmission wheel assembly for transmitting power, a conductive component for connecting to a power source, and a fixing member for fixing the electroplating cathode assembly to the electroplating equipment; the transmission wheel assembly is respectively disposed at one end of the upper conductive roller assembly and the lower conductive roller assembly, and the conductive component is disposed at the other end of the upper conductive roller assembly and the lower conductive roller assembly.

[0015] The upper and lower conductive roller assemblies are provided with a plurality of the aforementioned horizontal electroplating cathode rollers, and the upper and lower conductive roller assemblies are electrically connected to the plurality of the rollers respectively.

[0016] Furthermore, the upper conductive roller assembly includes an upper conductive shaft core and an inner support member for the upper roller, with the inner support member for the upper roller disposed at both ends of the upper conductive shaft core.

[0017] The lower conductive roller assembly includes a lower conductive shaft core and an inner support member for the lower roller, with the inner support member for the lower roller located at both ends of the lower conductive shaft core.

[0018] Both the upper and lower conductive shafts are provided with a plurality of conductive rollers, and each is electrically connected to the flexible conductive brush of the plurality of conductive rollers.

[0019] Furthermore, an insulating layer is provided on the outside of the upper conductive shaft and the lower conductive shaft; a conductive wire is provided between the flexible conductive brush and the upper conductive shaft and the lower conductive shaft, one end of the conductive wire is electrically connected to the flexible conductive brush, and the other end is electrically connected to the metal layer of the upper conductive shaft or the lower conductive shaft.

[0020] Furthermore, the upper conductive shaft and the lower conductive shaft are hollow tubes, and a through hole is provided at the connection between the upper conductive shaft and the lower conductive shaft and the conductive wire, through which the conductive shaft passes; the conductive wire is electrically connected to the metal layer inside the through hole.

[0021] Furthermore, the transmission gear set includes an upper transmission spur gear, a lower transmission spur gear, and a main transmission bevel gear; the upper transmission spur gear is fixedly connected to one end of the upper conductive shaft core, and the lower transmission spur gear is fixedly connected to one end of the lower conductive shaft core; the upper transmission spur gear and the lower transmission spur gear mesh with each other; the main transmission bevel gear is fixed to the end of the upper conductive shaft core or the lower conductive shaft core, and meshes with an external drive gear.

[0022] The conductive component includes an upper conductive copper busbar, a lower conductive copper busbar, an upper cathode conductive sheet, and a lower cathode conductive sheet; the upper cathode conductive sheet and the lower cathode conductive sheet are respectively in dynamic brush contact with the other end of the upper conductive shaft and the lower conductive shaft; the upper conductive copper busbar and the lower conductive copper busbar are respectively electrically fixedly connected to the upper cathode conductive sheet and the lower cathode conductive sheet.

[0023] This invention also discloses a horizontal electroplating cathode device, comprising a frame, a control system, a drive motor, a protective cover, a liquid removal mechanism, and the aforementioned electroplating cathode assembly. The drive motor is fixed to the frame and meshes with the main drive bevel gear of the electroplating cathode assembly. The protective cover is located at the feed inlet of the electroplating cathode assembly. The liquid removal mechanism is located at the front and rear ends of the feed inlet of the electroplating cathode assembly and is used to remove the electroplating solution carried out from the plating tank from the product.

[0024] Furthermore, the liquid removal mechanism is either an air blowing mechanism or a vacuum adsorption mechanism.

[0025] The advantages of this invention are:

[0026] 1. This invention employs a roller brush with flexible conductive bristles to contact the battery cell, instantly connecting the power cathode to the conductive film of the battery cell. This creates an effective electric field between the anode mesh and the battery cell. Under the circulation of the plating solution, metal ions around the anode continuously move to the surface of the battery cell, achieving metal ion deposition. During this process, the flexible conductive bristles remain in flexible contact with the copper substrate on the battery cell surface, not only transferring current to and transporting it through the cell, but also protecting the battery cell from scratches due to the flexible material.

[0027] 2. The roller brush claw code of the present invention is rotatable. A limit pin is provided on one side to restrict the claw code from rotating in the opposite direction, and a spring is provided on the other side to push the claw code to rotate in the forward direction. Since the elasticity of the spring is limited, when the friction force between the flexible conductive brush and the battery cell is greater than the maximum elasticity, the claw code cannot rotate in the forward direction. This can avoid the hidden danger of the flexible conductive brush being hardened by the plating layer during long-term electroplating and scratching the battery cell.

[0028] 3. The electroplating cathode assembly of the present invention is provided with flexible conductive rollers on both the upper and lower sides of the battery cell, which can realize the cathode connection and conduction on both sides of the battery cell at the same time.

[0029] 4. The flexible conductive brush of the present invention is detachable by bolts. All components of the electroplating cathode assembly except the flexible conductive brush are provided with an insulating layer, which effectively prevents other metal parts from being electroplated. During maintenance, only the flexible conductive brush needs to be disassembled and replaced, thus solving the cost of deplating and the waste of manpower and time costs caused by frequent maintenance, and ensuring mass production of automated production lines to a greater extent.

[0030] 5. The electroplating cathode equipment of the present invention reduces the amount of plating solution flowing into the flexible conductive brush by setting a protective cover and a liquid removal mechanism, thereby further reducing the risk of the flexible conductive brush being plated with a copper layer. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the roller brush in Embodiment 1.

[0032] Figure 2 This is a schematic diagram of the electroplating cathode assembly in Example 2.

[0033] Figure 3 This is a diagram showing the usage status of the electroplating cathode assembly in Example 2.

[0034] Figure 4 This is a partial structural schematic diagram of the electroplating cathode equipment in Example 3.

[0035] Figure 5 This is a simplified diagram of the electroplating cathode equipment in use according to Example 3.

[0036] Explanation of key component symbols:

[0037] 1. Brush roller; 11. Conductive half-roller for conveying; 111. First roller pad; 112. Paw code; 113. Flexible conductive brush; 114. Limiting post; 12. Limiting elastic half-roller; 121. Second roller pad; 122. Spring; 13. Conductive wire.

[0038] 2. Electroplating cathode assembly; 21. Upper conductive roller assembly; 211. Upper conductive shaft core; 212. Inner support of the upper roller; 22. Lower conductive roller assembly; 221. Lower conductive shaft core; 222. Inner support of the lower roller; 23. Transmission wheel set; 231. Upper transmission spur gear; 232. Lower transmission spur gear; 233. Main transmission bevel gear; 24. Conductive assembly; 241. Upper conductive copper busbar; 242. Lower conductive copper busbar; 243. Upper cathode conductive sheet; 244. Lower cathode conductive sheet; 25. Fixing component; 26. Through hole;

[0039] 3. Electroplating cathode equipment; 31. Frame; 32. Protective cover; 33. Liquid removal mechanism;

[0040] 4. Plating bath;

[0041] 5. Battery cells. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Example 1:

[0044] like Figure 1 As shown, this embodiment discloses a horizontal electroplating cathode roller 1, which includes a conveying conductive half-roller 11 and a limiting elastic half-roller 12.

[0045] The conductive half-roller 11 includes a first roller pad 111, a claw code 112, a flexible conductive brush 113, and a limiting post 114.

[0046] The pawl code 112 is rotatably disposed on the inner side of the first roller pad 111. Specifically, the pawl code 112 is connected to the first roller pad 111 via a rotating shaft. The rotating shaft passes through both the first roller pad 111 and the pawl code 112, and a limit snap ring is provided at its end.

[0047] The flexible conductive brush 113 is detachably mounted on the outer end of the claw code 112 via bolts. Specifically, the flexible conductive brush 113 can be a corrosion-resistant stainless steel, titanium wire, or other metal wire, or a non-metallic wire such as carbon fiber.

[0048] The limiting post 114 is disposed on one side of the pawl code 112 to prevent the pawl code 112 from rotating to one side and to restrict the pawl code 112 from rotating in the opposite direction, so as to ensure that the pawl code 112 moves in a predetermined direction on the roller. The limiting post 114 is fixed on the inner side of the first roller pad 111.

[0049] The limiting elastic half-wheel 12 includes a second roller pad 121 and a spring piece 122.

[0050] One end of the spring piece 122 is disposed on the inner side of the second roller pad 121, and the other end abuts against the other side of the pawl code 112. Since the pawl code 112 and the first roller pad 111 are rotatably configured, the first roller pad 111 cannot drive the pawl code 112 to move synchronously. Therefore, the spring piece 122 is used to push the pawl code 112 to rotate in the forward direction. Due to the limited elasticity of the spring piece 122, when the frictional force between the flexible conductive brush 113 and the battery cell 5 is greater than the maximum elasticity, the pawl code 112 cannot rotate in the forward direction with the first roller pad 111. This avoids the potential risk of the flexible conductive brush 113 hardening and scratching the battery cell 5 due to long-term electroplating. The end of the flexible conductive brush 113 extends beyond the outer edge of the first roller pad 111 and the second roller pad 121, so that the battery cell 5 and the roller 1 are only subjected to the frictional force of the flexible conductive brush 113.

[0051] To prevent other metal parts from being electroplated, all components of the roller brush 1, except for the flexible conductive brush 113, are covered with an insulating adhesive layer. This effectively prevents other metal parts from being electroplated, and maintenance only requires disassembling and replacing the flexible conductive brush 113. This effectively solves the problems of deplating costs and the waste of manpower and time costs caused by frequent maintenance, thus ensuring mass production on automated production lines to a greater extent.

[0052] Example 2:

[0053] like Figures 1 to 3As shown, this embodiment discloses a horizontal electroplating cathode assembly 2, which includes an upper conductive roller assembly 21 and a lower conductive roller assembly 22 that contact the electroplated product, a transmission wheel assembly 23 for transmitting power, a conductive component 24 for connecting to a power source, and a fixing member 25 for fixing the electroplating cathode assembly 2 to the electroplating equipment. The transmission wheel assembly 23 is respectively disposed at one end of the upper conductive roller assembly 21 and the lower conductive roller assembly 22, and the conductive component 24 is disposed at the other end of the upper conductive roller assembly 21 and the lower conductive roller assembly 22.

[0054] The upper conductive roller assembly 21 and the lower conductive roller assembly 22 are provided with a plurality of the aforementioned horizontal electroplating cathode brush rollers 1, and the upper conductive roller assembly 21 and the lower conductive roller assembly 22 are electrically connected to the plurality of the brush rollers 1 respectively.

[0055] Specifically, the upper conductive roller assembly 21 includes an upper conductive shaft core 211 and an inner support member 212 of the upper roller, with the inner support member 212 disposed at both ends of the upper conductive shaft core 211. The lower conductive roller assembly 22 includes a lower conductive shaft core 221 and an inner support member 222 of the lower roller, with the inner support member 222 disposed at both ends of the lower conductive shaft core 221.

[0056] Both the upper conductive shaft core 211 and the lower conductive shaft core 221 are provided with a plurality of conductive rollers, and both are electrically connected to the flexible conductive brushes 113 of the plurality of conductive rollers.

[0057] During the electroplating process, the battery cell 5 enters the electroplating cathode assembly 2 via a conveyor. The electroplating cathode assembly 2 is equipped with flexible conductive rollers 1 above and below the battery cell 5. As the battery cell 5 passes by, the rollers 1 equipped with flexible conductive brushes 113 contact the battery cell 5, instantaneously connecting the power cathode to the conductive film of the battery cell 5. This creates an effective electric field between the anode mesh and the battery cell 5. Under the circulation of the plating solution, metal ions around the anode continuously move to the surface of the battery cell 5, achieving metal ion deposition. During this process, the flexible conductive brushes 113, pushed by the elastic force of the spring piece 122, maintain flexible contact with the copper substrate on the surface of the battery cell 5, conducting electricity and propelling the battery cell 5 forward. This avoids the risk of scratching the plating layer after electroplating, thereby improving the yield rate.

[0058] An insulating layer is provided on the exterior of the upper conductive shaft core 211 and the lower conductive shaft core 221. A conductive wire 13 is provided between the flexible conductive brush 113 and the upper conductive shaft core 211 and the lower conductive shaft core 221. One end of the conductive wire 13 is electrically connected to the flexible conductive brush 113, and the other end is electrically connected to the metal layer of the upper conductive shaft core 211 or the lower conductive shaft core 221. The insulating layer can effectively prevent the shaft core from being electroplated with a coating, which would affect the stable operation of the component.

[0059] The upper conductive shaft 211 and the lower conductive shaft 221 are hollow tubes. A through-hole 26 is provided at the connection point between the upper conductive shaft 211 and the lower conductive shaft 221 and the conductive wire 13, penetrating either the upper conductive shaft 211 or the lower conductive shaft 221. The conductive wire 13 is electrically connected to the metal layer inside the through-hole 26. The hollow tube design reduces the weight of the conductive shaft, decreases the pressure on the inner support components, and is beneficial to the service life of the components. The through-hole 26 allows for better electrical connection between the conductive shaft and the flexible conductive brush 113, and also facilitates the drainage of any electroplating solution that may accidentally flow into the conductive core.

[0060] The transmission gear set 23 includes an upper transmission spur gear 231, a lower transmission spur gear 232, and a main transmission bevel gear 233. The upper transmission spur gear 231 is fixedly connected to one end of the upper conductive shaft core 211, and the lower transmission spur gear 232 is fixedly connected to one end of the lower conductive shaft core 221. The upper transmission spur gear 231 and the lower transmission spur gear 232 mesh with each other. The main transmission bevel gear 233 is fixed to the end of the upper conductive shaft core 211 or the lower conductive shaft core 221 and meshes with an external drive gear.

[0061] The conductive component 24 includes an upper conductive copper busbar 241, a lower conductive copper busbar 242, an upper cathode conductive sheet 243, and a lower cathode conductive sheet 244. The upper cathode conductive sheet 243 and the lower cathode conductive sheet 244 are in dynamic brush-type contact with the other ends of the upper conductive shaft core 211 and the lower conductive shaft core 221, respectively. The upper conductive copper busbar 241 and the lower conductive copper busbar 242 are electrically fixedly connected to the upper cathode conductive sheet 243 and the lower cathode conductive sheet 244, respectively.

[0062] Example 3:

[0063] like Figure 4 , Figure 5 As shown, this embodiment discloses a horizontal electroplating cathode device 3, which includes a frame 31, a control system, a drive motor, a protective cover 32, a liquid removal mechanism 33, and the aforementioned electroplating cathode assembly 2.

[0064] The drive motor is fixed to the frame 31 and meshes with the main drive bevel gear 233 of the electroplating cathode assembly 2. A protective cover 32 is located at the feed inlet of the electroplating cathode assembly 2. A liquid removal mechanism 33 is located at the front and rear ends of the feed inlet of the electroplating cathode assembly 2 to remove the electroplating solution carried out from the plating tank from the product. Specifically, the liquid removal mechanism 33 is either an air blowing mechanism or a vacuum adsorption mechanism. The air blowing mechanism or vacuum adsorption mechanism uses conventional mechanisms, which will not be described in detail here.

[0065] like Figure 5As shown, the battery cell 5 first passes through a plating tank 4 filled with electroplating solution. Before entering the electroplating cathode assembly 2, it is cleaned of any residual plating solution by a liquid removal mechanism 33 before entering the electroplating cathode assembly 2. In this embodiment, by setting up a protective cover 32 and a liquid removal mechanism 33, the amount of plating solution flowing into the flexible conductive brush 113 is reduced, further reducing the risk of the flexible conductive brush 113 being plated with a copper layer.

[0066] In summary, this invention not only serves to transfer current to and transport the battery cells, but also protects the battery cells from scratches.

[0067] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A horizontal electroplating cathode brush wheel characterized by: The half wheel (11) and the limiting elastic half wheel (12) are arranged in the rolling brush wheel (1) in parallel. The half wheel (11) includes a first rolling wheel pad (111), a pawl code (112), a flexible conductive brush (113) and a limiting column (114). The pawl code (112) is rotatably arranged on the inner side of the first rolling wheel pad (111), and the flexible conductive brush (113) is arranged on the outer end of the pawl code (112). The limiting elastic half wheel (12) includes a second rolling wheel pad (121) and a spring sheet (122).

2. The horizontal electroplating brush wheel cathode as claimed in claim 1, wherein: The spring sheet (122) is arranged on the inner side of the second rolling wheel pad (121) at one end, and the other end is in abutment with one side of the pawl code (112).

3. The horizontal electroplating brush wheel cathode as recited in claim 1, wherein: The other side of the pawl code (112) is provided with a limiting column (114) for blocking the pawl code (112) from rotating to one side.

4. The horizontal electroplating brush wheel cathode as recited in claim 1, wherein: The limiting column (114) is fixed on the inner side of the first rolling wheel pad (111).

5. The horizontal electroplating brush wheel cathode as recited in claim 1, wherein: The end of the flexible conductive brush (113) is higher than the outer edge of the first rolling wheel pad (111) and the second rolling wheel pad (121).

6. A horizontal electroplating cathode assembly, characterized by: The flexible conductive brush (113) is a metal wire or a carbon fiber. The flexible conductive brush (113) is detachably arranged on the pawl code (112) through a bolt.

7. The horizontal electroplating cathode assembly of claim 6, wherein: The pawl code (112) is connected with the first rolling wheel pad (111) through a rotating shaft, the rotating shaft passes through the first rolling wheel pad (111) and the pawl code (112) at the same time, and a limiting snap spring is arranged on the end. Except for the flexible conductive brush (113), all other elements of the rolling brush wheel (1) are provided with an insulating rubber layer outside. The rolling brush wheel (1) includes an upper conductive roller assembly (21) and a lower conductive roller assembly (22) in contact with the electroplated product, a transmission wheel group (23) for transmitting power, a conductive assembly (24) for connecting the power supply, and a fixing part (25) for fixing the electroplated cathode assembly (2) on the electroplating equipment. The transmission wheel group (23) is arranged at one end of the upper conductive roller assembly (21) and the lower conductive roller assembly (22), and the conductive assembly (24) is arranged at the other end of the upper conductive roller assembly (21) and the lower conductive roller assembly (22). The upper conductive roller assembly (21) and the lower conductive roller assembly (22) are provided with a plurality of horizontal electroplating cathode rolling brush wheels according to any one of claims 1 to 5, and the upper conductive roller assembly (21) and the lower conductive roller assembly (22) are respectively electrically connected with the plurality of rolling brush wheels (1). The upper conductive roller assembly (21) includes an upper conductive shaft core (211) and an upper rolling drum inner side support (212) arranged at both ends of the upper conductive shaft core (211). The lower conductive roller assembly (22) includes a lower conductive shaft core (221) and a lower rolling drum inner side support (222) arranged at both ends of the lower conductive shaft core (221). The lower conductive roller assembly (22) includes a lower conductive shaft core (221) and a lower rolling drum inner side support (222) arranged at both ends of the lower conductive shaft core (221). The upper conductive shaft core (211) and the lower conductive shaft core (221) are provided with a plurality of conductive rollers, and are in conductive communication with the flexible conductive brushes (113) of the plurality of conductive rollers.

8. The horizontal electroplating cathode assembly of claim 7, wherein: The upper conductive shaft core (211) and the lower conductive shaft core (221) are provided with an insulating layer on the outside; the flexible conductive brush (113) is provided with a conductive wire (13) between the upper conductive shaft core (211) and the lower conductive shaft core (221), one end of the conductive wire (13) is electrically connected with the flexible conductive brush (113), and the other end is electrically connected with the metal layer of the upper conductive shaft core (211) or the lower conductive shaft core (221).

9. The horizontal electroplating cathode assembly of claim 8, wherein: The upper conductive shaft core (211) and the lower conductive shaft core (221) are hollow pipes, and the connection between the upper conductive shaft core (211) and the lower conductive shaft core (221) and the conductive wire (13) is provided with a through hole (26) penetrating through the upper conductive shaft core (211) or the lower conductive shaft core (221); the conductive wire (13) is electrically connected with the metal layer inside the through hole (26).

10. The horizontal electroplating cathode assembly of claim 7, wherein: The transmission wheel set (23) comprises an upper transmission spur gear (231), a lower transmission spur gear (232) and a main transmission bevel gear (233); the upper transmission spur gear is fixedly connected with one end of the upper conductive shaft core (211), and the lower transmission spur gear is fixedly connected with one end of the lower conductive shaft core (221); the upper transmission spur gear (231) and the lower transmission spur gear (232) are in meshing engagement; the main transmission bevel gear (233) is fixed to the distal end of the upper conductive shaft core (211) or the lower conductive shaft core (221) and is in meshing engagement with the external driving gear; The conductive assembly (24) comprises an upper conductive copper bar (241), a lower conductive copper bar (242), an upper cathode conductive sheet (243) and a lower cathode conductive sheet (244); the upper cathode conductive sheet (243) and the lower cathode conductive sheet (244) are respectively in brush-type dynamic contact with the other end of the upper conductive shaft core (211) and the lower conductive shaft core (221); the upper conductive copper bar (241) and the lower conductive copper bar (242) are electrically fixedly connected with the upper cathode conductive sheet (243) and the lower cathode conductive sheet (244) respectively.

11. A horizontal electroplating cathode apparatus, characterized by: The electroplating cathode assembly (2) comprises a rack (31), a control system, a driving motor, a protective cover (32), a liquid removal mechanism (33) and the electroplating cathode assembly (2) of any one of claims 6 to 10; the driving motor is fixed to the rack (31) and is in meshing connection with the main transmission bevel gear (233) of the electroplating cathode assembly (2); the protective cover (32) is arranged at the feeding position of the electroplating cathode assembly (2); the liquid removal mechanism (33) is arranged at the front end and the rear end of the feeding position of the electroplating cathode assembly (2) and is used for removing the electroplating liquid brought out from the plating tank by the product.

12. The horizontal electroplating cathode apparatus of claim 11, wherein: The liquid removal mechanism (33) is a blowing mechanism or a vacuum adsorption mechanism.

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