Conductive device and electroplating apparatus

Abstract

The present application relates to the technical field of electroplating and conduction, and discloses a conductive device and a horizontal electroplating apparatus. The provided conductive device comprises a conductive roller, a conductive assembly, and an electrode assembly; the conductive roller comprises a roller drum, a plurality of conductive elements, and a plurality of roller brushes, the plurality of roller brushes are separately arranged on an outer wall of the roller drum and respectively arranged in the circumferential direction and axial direction of the roller drum, the plurality of conductive elements are arranged inside the side wall of the roller drum in the circumferential direction of the roller drum, and each conductive element is electrically connected to at least one roller brushe; a sealing substance is provided in a drum cavity of the roller drum and between each roller brush and the roller drum, respectively; the conductive assembly is connected to one end of the conductive rollers and can rotate along with the conductive rollers, the conductive assembly comprises a plurality of conductive contacts, and the plurality of conductive contacts are correspondingly and electrically connected to the conductive elements; and the electrode assembly comprises a first electrode and a second electrode, any one conductive contact is in contact with the first electrode, and any other conductive contact is in contact with the second electrode. The present application can solve at least the problem of inadequate sealing in current conductive devices.

Description

Conductive device and electroplating equipment TECHNICAL FIELD

[0001] The present application belongs to the technical field of electroplating and conduction, and particularly relates to a conductive device and electroplating equipment. BACKGROUND

[0002] Horizontal electroplating technology is a method of placing a workpiece to be plated parallel to the surface of the electroplating solution, which has the characteristics of convenient operation, wide range of workpiece size adaptation, easy large-scale automation and closed operation, and has developed rapidly in recent years. In the field of solar cell manufacturing, there are processes of electroplating on the cell sheet, such as using electroplating such as horizontal electroplating technology in the cell sheet metallization process. In recent years, with the optimization and upgrading of solar cell preparation process, it is often necessary to carry out surface electroplating on the plated cell sheet through a cathode assembly and an anode assembly, and the optimization of the cathode conduction mode has become a problem to be solved.

[0003] In the related art, in the process of solar cell sheet metallization, for horizontal plating, some cathode conduction methods are connected by conductive wires on the electroplating brush. The electroplating brush is usually fixed, and the cell sheet slides away from the end of the conductive wire far from the conductive plate to electroplate the cell sheet. Some cathode conduction methods use rollers or conductive rollers for conduction, which is convenient to operate and can avoid damage to the plated film on the cell surface. However, the existing cathode conductive roller structure still has certain deficiencies, for example, the existing cathode conductive roller has poor sealing performance, which causes liquid to easily enter the inside of the conductive roller, easily causes internal short circuit and corrosion, affects the plating effect, and reduces the service life of the conductive roller. SUMMARY

[0004] In view of the above problems, the present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a conductive device and electroplating equipment, which can at least alleviate the problem of poor sealing performance of the existing conductive device, can improve the sealing performance of the conductive device, or can also improve the replaceability of the conductive device.

[0005] To solve the above technical problems, the present application is implemented as follows:

[0006] According to one aspect of the present application, the present application provides a conductive device, comprising: a conductive roller, a conductive assembly and an electrode assembly;

[0007] The conductive roller comprises a roller, a plurality of conductive pieces and a plurality of roller brushes, the plurality of roller brushes are respectively arranged on the outer wall of the roller and are respectively arranged along the circumferential direction of the roller and the axial direction of the roller, the plurality of conductive pieces are arranged in the side wall of the roller along the circumferential direction of the roller, and each conductive piece is electrically connected to at least one roller brush;

[0008] a sealing substance is arranged between the roller brush and the mounting slot;

[0009] the conductive assembly is connected to one end of the conductive roller and rotatable with the conductive roller, the conductive assembly comprises a plurality of conductive contacts, and each of the plurality of conductive contacts is electrically connected to one of the plurality of conductive pieces;

[0010] the electrode assembly comprises a first electrode and a second electrode, any one of the conductive contacts is in contact with the first electrode, and any other one of the conductive contacts is in contact with the second electrode.

[0011] In addition, the conductive device according to the present application can further have the following additional technical features:

[0012] In some embodiments, the outer wall of the roller is provided with a plurality of mounting slots, and each of the plurality of roller brushes is arranged in one of the mounting slots in a one-to-one correspondence, and one end of each of the roller brushes protrudes from the outer wall of the roller.

[0013] In some embodiments, the bottom wall of the mounting slot is provided with a through hole, and the roller brush passes through the through hole and is connected to the conductive piece.

[0014] In some embodiments, one end of the roller brush is threadedly connected to the conductive piece.

[0015] In some embodiments, the sealing substance is arranged between each of the roller brushes and at least part of the slot wall of the corresponding mounting slot.

[0016] In some embodiments, the conductive piece is arranged in the barrel cavity of the roller and is fastened to the roller by a fastener.

[0017] In some embodiments, the sealing substance is an insulating sealant that seals the gap between the roller brush and the mounting slot.

[0018] In some embodiments, each of the mounting slots is provided with a fixing slot in the side wall, and each of the fixing slots extends along the axial direction of the roller; the fixing slot and the mounting slot are in communication through the through hole, and the fixing slot and the barrel cavity of the roller are in communication through an opening; both ends of the conductive piece are arranged in the fixing slot to isolate the barrel cavity of the roller from the roller brush to form a seal.

[0019] In some embodiments, the surface of the roller brush facing the bottom wall of the mounting slot is provided with an annular groove; the sealing substance is a sealing ring arranged in the annular groove to form a seal between the mounting slot and the through hole.

[0020] In some embodiments, the conductive device further comprises a partition connected between the conductive roller and the conductive assembly for separating the conductive roller and the conductive assembly.

[0021] In some embodiments, the conductive assembly further comprises a plurality of conductive connectors, each of the plurality of conductive connectors being electrically connected to one of the plurality of conductive contacts; and each of the plurality of conductive connectors being connected to one of the plurality of conductive members by a wire.

[0022] In some embodiments, the outer side of the roller brush is provided with an insulating sleeve.

[0023] In some embodiments, the material of the roller brush is a flexible conductive material, which comprises metal fibers or carbon fibers.

[0024] In some embodiments, the conductive device further comprises a first support plate, a second support plate and a third support plate; both ends of the roller are rotatably connected to the first support plate and the second support plate by bearings; the third support plate is arranged between the first support plate and the second support plate, and the partition is arranged on the third support plate.

[0025] According to another aspect of the present application, the embodiments of the present application further provide an electroplating device, which comprises an electroplating tank and the aforementioned conductive device arranged in the electroplating tank.

[0026] The technical solutions of the present application have at least the following beneficial effects:

[0027] In the embodiments of the present application, the conductive device provided includes a conductive roller, a conductive assembly and an electrode assembly, the conductive roller includes a roller barrel, a conductive part and a roller brush, the conductive assembly is arranged at one end of the conductive roller, the conductive part in the conductive roller is correspondingly electrically connected with the roller brush, and the conductive contact in the conductive assembly is correspondingly electrically connected with the conductive part, so that the corresponding electrical connection between the roller brush and the conductive contact can be realized through the conductive part, further, any one conductive contact can be in contact with a first electrode, and any other conductive contact can be in contact with a second electrode, so that the electrical connection between the roller brush and an external power supply can be realized, for example, the roller brush becomes a cathode roller brush and cooperates with an external anode, so that the electroplating of a workpiece to be plated can be realized. Wherein, a plurality of roller brushes are arranged on the outer wall of the roller barrel and are arranged along the circumferential direction of the roller barrel and the axial direction of the roller barrel respectively, so that the roller brushes are distributed, which helps to make the roller brushes fully contact the workpiece to be plated and improve the quality of the plated layer. In particular, in the conductive device of the present application, a sealing material is arranged between each roller brush and the roller barrel in the barrel cavity of the roller barrel of the conductive roller. Through the arrangement of the sealing material, the liquid can be prevented from entering the inside of the roller barrel, the sealing and insulation of the inside of the roller barrel can be ensured, and then the internal short circuit and corrosion phenomenon caused by the liquid entering the inside of the roller barrel can be avoided, and the corrosion or internal conductive part conduction phenomenon caused by the liquid entering between the roller brush and the roller barrel can also be reduced or avoided. Therefore, the sealing property of the conductive device is improved, the short circuit or corrosion phenomenon is reduced, the service life of the conductive device is prolonged, and the plating film effect and efficiency are ensured.

[0028] The electroplating equipment of the present application includes the above-mentioned conductive device, and thus at least has all the features and advantages of the conductive device, which will not be repeated here. Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a structural schematic diagram of a conductive device provided by some exemplary embodiments of the present application;

[0030] FIG. 2 is a structural schematic diagram of a conductive roller, a first support plate, a second support plate and a third support plate and the like provided by some exemplary embodiments of the present application;

[0031] FIG. 3 is a cross-sectional schematic diagram of a conductive device provided by some exemplary embodiments of the present application;

[0032] FIG. 4 is another perspective schematic diagram of a conductive device provided by some exemplary embodiments of the present application;

[0033] FIG. 5 is a structural schematic diagram of a roller brush provided by some exemplary embodiments of the present application;

[0034] FIG. 6 is a partial schematic diagram of another conductive roller and a conductive assembly provided by some exemplary embodiments of the present application;

[0035] Fig. 7 is a structural schematic diagram of another roller brush provided by some example embodiments of the present application.

[0036] Legend of reference signs:

[0037] 10 - conductive roller; 11 - roller barrel; 111 - mounting groove; 112 - through hole; 113 - fixing groove; 114 - opening; 12 - conductive part; 13 - roller brush; 131 - insulating sleeve; 132 - conductive brush; 133 - conductive metal structure;

[0038] 20 - conductive assembly; 21 - conductive contact; 22 - conductive connecting part; 23 - wire;

[0039] 30 - electrode assembly; 31 - first electrode; 32 - second electrode;

[0040] 40 - sealing ring;

[0041] 50 - fastener;

[0042] 60 - barrier;

[0043] 71 - first support plate; 72 - second support plate; 73 - third support plate;

[0044] 81 - first bearing; 82 - second bearing. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0046] In some embodiments of the present application, a conductive device is provided, which can be applied in the field of electroplating, such as applied in horizontal electroplating equipment, for realizing conduction, such as realizing the conduction of cathode, in addition to which, the conductive device can also be applied in other equipment, and the specific use scenarios and working conditions of the conductive device are not specifically limited in the embodiments of the present application.

[0047] Referring to FIGS. 1-7, in some embodiments, a conductive device is provided, which includes a conductive roller 10, a conductive assembly 20 and an electrode assembly 30; wherein the conductive roller 10 can rotate under the driving of a driving mechanism, and can be used for contact conduction with a workpiece to be plated. The conductive assembly 20 can be electrically connected with the conductive roller 10 and the electrode assembly 30 respectively, and can play a role of intermediate conduction of electric energy. The electrode assembly 30 can be electrically connected with an external power source, and the electrode assembly 30 can be electrically connected with the conductive roller 10 through the conductive assembly 20. The electrode assembly 30 is electrically connected with the external power source, and electric energy is conducted to the conductive assembly 20, and then the electric energy is conducted to the conductive roller 10 through the conductive assembly 20. The conductive roller 10 is used for contact with the workpiece to be plated, so that the conducted electric energy, especially negative electric energy, acts on the workpiece to be plated.

[0048] The conductive roller 10 specifically includes a roller barrel 11, a plurality of conductive pieces 12 and a plurality of roller brushes 13. The plurality of roller brushes 13 are respectively arranged on the outer wall of the roller barrel 11 and are respectively arranged along the circumferential direction of the roller barrel 11 and the axial direction of the roller barrel 11. The plurality of conductive pieces 12 are arranged in the side wall of the roller barrel 11 along the circumferential direction of the roller barrel 11, and each conductive piece 12 is electrically connected with at least one roller brush 13. The roller barrel 11 can play a role of support and installation, etc. For example, the conductive pieces 12 and the roller brushes 13 can be installed on the roller barrel 11, and the conductive assembly 20, etc. can be arranged at one end of the roller barrel 11. The plurality of roller brushes 13 can be divided into a plurality of groups of roller brushes 13, i.e. a plurality of groups of roller brushes 13 are arranged. The plurality of groups of roller brushes 13 can be arranged along the circumferential direction of the roller barrel 11, and the roller brushes 13 in each group are arranged along the axial direction of the roller barrel 11. Such arrangement of the roller brushes 13 helps the roller brushes 13 to fully contact the workpiece to be plated, thereby improving the quality of the plated layer. The conductive pieces 12 can be used for electrical connection with the roller brushes 13, thereby playing a role of conductive connection.

[0049] In this embodiment, sealing substances are arranged in the barrel cavity of the roller barrel 11 and / or between each roller brush 13 and the roller barrel 11; that is, the sealing substances can be arranged in the barrel cavity of the roller barrel 11, or the sealing substances can be arranged between each roller brush 13 and the roller barrel 11, or the sealing substances can be arranged in the barrel cavity of the roller barrel 11 and between each roller brush 13 and the roller barrel 11, thereby improving the sealing performance of the conductive device.

[0050] The conductive assembly 20 is connected to one end of the conductive roller 10 and rotatable with the conductive roller 10, and the conductive assembly 20 comprises a plurality of conductive contacts 21 which are in one-to-one correspondence with the plurality of conductive members 12. For example, the conductive assembly 20 is connected to one end, such as the right end, of the roller barrel 11 in the length direction of the conductive roller 10, and the conductive assembly 20 is rotatable with the conductive roller 10 when the conductive roller 10 rotates. The conductive assembly 20 comprises a plurality of conductive contacts 21, which are alternatively annular contacts, and the plurality of conductive contacts 21 are in one-to-one correspondence with the plurality of conductive members 12, and the plurality of conductive members 12 are electrically connected to the plurality of roller brushes 13, so that each conductive contact 21 has a corresponding roller brush 13, thereby realizing the electrical connection between the conductive contact 21 and the roller brush 13.

[0051] It should be understood that, in order to avoid mutual influence between the plurality of conductive members 12 or the plurality of conductive contacts 21, each adjacent conductive contact 21 should be insulated and separated, each adjacent conductive member 12 should also be separated, and each row of roller brushes 13 should also be insulated and separated.

[0052] The electrode assembly 30 comprises a first electrode 31 and a second electrode 32 with opposite polarities, any one of the conductive contacts 21 is in contact with the first electrode 31, and any other conductive contact 21 is in contact with the second electrode 32. For example, the first electrode 31 can be a cathode, and the second electrode 32 can be an anode, or the first electrode 31 can be an anode, and the second electrode 32 can be a cathode. One of the first electrode 31 and the second electrode 32 is used to connect to the negative pole of the power supply, and the other is used to connect to the positive pole of the power supply. The first electrode 31 and the second electrode 32 are respectively used to electrically contact the conductive contacts 21 in the conductive assembly 20, so as to realize the electrical connection between the roller brushes 13 and the external power supply, such as making the roller brushes 13 into cathode roller brushes, and cooperating with the external anode to realize the electroplating of the workpiece to be plated.

[0053] It should be noted that the specific number of the roller brushes 13, the conductive members 12 or the conductive contacts 21 is selected according to actual needs, and the present embodiment does not limit the same. For example, the number of the conductive contacts 21 can be four or more, or six or more, or ten or more, etc.

[0054] Therefore, based on the above setting, the conductive device avoids liquid from entering the inside of the roller barrel 11 by arranging the sealing material between each roller brush 13 and the roller barrel 11 in the barrel cavity of the roller barrel 11 of the conductive roller 10, such as the insulating sealing glue, so as to ensure the sealing and insulation of the inside of the roller barrel 11, thereby avoiding the internal short circuit and corrosion phenomenon caused by the liquid entering the inside of the roller barrel 11, and reducing or avoiding the corrosion or internal conductive part 12 conduction phenomenon caused by the liquid entering between the roller brush 13 and the roller barrel 11, thereby improving the sealing of the conductive device, reducing the occurrence of short circuit or corrosion and the like, helping to prolong the service life of the conductive device, and ensuring the plating effect and efficiency. In addition, in some preferred embodiments of the present application, by arranging different sealing forms, the replaceability of the conductive device can be further improved while ensuring the sealing of the conductive device, such as by using the sealing form of the sealing ring, the single damaged or repaired roller brush can be replaced without replacing the entire conductive roller, thereby improving the replaceability and maintainability of the entire conductive device, and helping to reduce the maintenance cost.

[0055] In addition, the conductive device is arranged by a plurality of groups of roller brushes 13, which helps to make the roller brushes 13 fully contact the workpiece to be plated, and improve the plating layer quality. By arranging the above conductive assembly 20 and the conductive part 12, the electrical connection effect can be improved, and the stability and reliability of the electrical connection between the roller brush 13 and the external power supply can be improved. The entire conductive device has a simple structure, is easy to maintain, has good sealing, can reduce maintenance or maintenance cost, has stable and reliable conductive connection, and helps to improve the electroplating efficiency and production yield.

[0056] Optionally, in some cases, as shown in FIGS. 1 to 5, the above sealing material can be insulating glue (insulating sealing glue), which can not only play a sealing role, but also play an insulating role. Therefore, by pouring the insulating glue in the barrel cavity of the roller barrel 11 and arranging the insulating sealing glue between the roller barrel 11 and the roller brush 13, the gap between the roller brush 13 and the roller barrel 11 can be sealed, and the internal insulation and sealing can be ensured, and the internal short circuit or corrosion phenomenon caused by the liquid entering the inside of the roller barrel 11 can be reduced or avoided. At the same time, in this scheme, by arranging the insulating glue, the conductive part 12 can be connected and fixed from the inside of the roller barrel 11 to all the roller brushes 13. After pouring the insulating glue in the roller barrel 11, the roller brush 13 is also fixed with the insulating glue, so that the entire conductive roller becomes an integral whole, has good overall structure, stable structure, reliable connection, and good sealing. In the following, this scheme will be described in further detail.

[0057] Alternatively, in some other cases, as shown in FIGS. 6-7, the sealing material can also be a sealing ring 40, such as using the sealing ring 40 to seal the gap between the roller brush 13 and the roller 11, which not only can improve the sealing performance, avoid short circuit or corrosion, etc., but also can improve the replaceability and maintainability of the conductive roller 10. For example, in this scheme, the structure formed by the conductive member 12 and the roller 11 can form a separation between the roller brush 13 and the roller 11, and after the roller 11 is filled with insulating glue in the barrel cavity, the roller brush 13 will not be directly connected with the insulating glue, and the roller brush 13 can be connected with the conductive member 12 in a threaded or other connection manner. In this way, while ensuring the sealing performance, the replaceability of the conductive roller 10 can also be improved, and when a single roller brush 13 is damaged or needs to be repaired, it can be replaced individually without the need to replace the entire conductive roller 10, which is conducive to reducing the maintenance cost and greatly improving the convenience of maintenance. The scheme will be further described in detail below.

[0058] Therefore, the sealing material between the roller brush 13 and the roller 11 can be insulating glue, and can also be other sealing materials such as a sealing ring or a sealing ring, etc. Thus, the sealing performance of the conductive device is improved, which can prevent liquid from entering the inside of the conductive roller 10, and further reduce or avoid corrosion or internal conductive member 12 conduction due to the entry of liquid, or can improve the replaceability of the conductive roller 10 and reduce the maintenance cost.

[0059] In order to facilitate the installation and fixation of the roller brush 13 and better set the sealing material between the roller brush 13 and the roller 11, in some embodiments, the outer wall of the roller 11 is provided with a plurality of installation grooves 111, such as the number of installation grooves 111 can correspond to the number of roller brushes 13, and a plurality of roller brushes 13 are correspondingly arranged in the plurality of installation grooves 111, and one end of each roller brush 13 protrudes from the outer wall of the roller 11; and a sealing material is arranged between each roller brush 13 and at least part of the groove wall of the corresponding installation groove 111.

[0060] By installing the roller brush 13 in the installation groove 111 and making one end of the roller brush 13 protrude from the outer wall of the roller 11, the exposed roller brush 13 can be used to electrically contact the workpiece to be plated, and the sealing material is arranged between the roller brush 13 and at least part of the groove wall of the installation groove 111, which can effectively seal the connection between the roller brush 13 and the installation groove 111, improve the sealing performance, and further reduce or prevent liquid from entering the inside of the conductive roller 10, and further reduce or avoid corrosion or internal conductive member 12 conduction due to the entry of liquid.

[0061] In some embodiments, the bottom wall of the installation groove 111 is provided with a through hole 112, the roller brush 13 passes through the through hole 112 and is connected with the conductive member 12.

[0062] In order to facilitate the connection of the roller brush 13 and the conductive member 12, facilitate the connection and arrangement of the roller brush 13 and the conductive member 12, a through hole 112 is arranged on the bottom wall of the mounting groove 111, that is, the mounting groove 111 and the through hole 112 are arranged in communication with each other on the side wall of the roller barrel 11. Optionally, according to the structural characteristics of the roller brush 13, the mounting groove 111 and the through hole 112 can be arranged in a stepped manner. One end of the roller brush 13, such as the upper end, protrudes out of the outer wall of the roller barrel 11, and the other end of the roller brush 13, such as the lower end, passes through the through hole 112 and is connected with the conductive member 12. Part of the roller brush 13 can be arranged in the mounting groove 111, and part of the roller brush 13 can be arranged in the through hole 112, and at least part of the roller brush 13 arranged in the through hole 112 can be connected with the conductive member 12.

[0063] In some embodiments, one end of the roller brush 13 is threadedly connected with the conductive member 12. Optionally, the conductive member 12 is provided with a threaded hole, and one end of the roller brush 13, that is, the conductive metal structure 133 of the roller brush 13, can be threadedly connected with the threaded hole of the conductive member 12. In this way, the threaded connection is adopted, which is simple in structure, stable and reliable in connection, and convenient for processing and manufacturing. At the same time, by adopting the threaded connection between the conductive member 12 and the roller brush 13, the replaceability of the roller brush 13 can be improved, such as replacing a single roller brush 13, thereby improving the convenience of maintenance.

[0064] In some embodiments, a sealing material is arranged between each roller brush 13 and at least part of the groove wall of the corresponding mounting groove 111.

[0065] Optionally, in some embodiments, as shown in FIGS. 1 to 5, the above-mentioned sealing material adopts insulating sealant, and the gap between the roller brush 13 and the mounting groove 111 can be sealed by the insulating sealant. The sealing material adopts insulating sealant, which can not only play a sealing role, but also play an insulating role. Of course, other types of sealing materials can also be adopted, as long as they do not limit the purpose of the present application.

[0066] Further, in some embodiments, the conductive member 12 is arranged in the barrel cavity of the roller barrel 11, and the conductive member 12 is fastened and connected with the roller barrel 11 by the fastener 50. Optionally, the fastener 50 can be a screw. Of course, other types of fasteners 50 can also be adopted, which are not limited in the present embodiment.

[0067] By arranging a plurality of fasteners 50, such as a plurality of screws, in the conductive roller 10, the screws can be used to firmly and reliably connect the conductive member 12 with the roller barrel 11, thereby improving the connection reliability of the conductive member 12 and facilitating the guarantee of the conductive connection effect.

[0068] Thus, in this case, the gap between the brush 13 and the mounting groove 111 of the roller 11 is sealed by the sealing material, such as the insulating sealant. In this solution, the conductive member 12 can be connected and fixed to all the brushes 13 from the inside of the roller 11. After the insulating sealant is injected into the roller 11, the brush 13 is also fixed with the insulating sealant, so that the entire conductive roller can be integrated.

[0069] Optionally, the inner wall of the roller 11 is provided with an opening 114, and the sealing material, such as the insulating sealant, can block the opening 114.

[0070] In this embodiment, during the preparation process, after the conductive member 12 is inserted into the inside of the roller 11, the brush 13 can be locked from the outside, and pulling the conductive member 12 can have a sealing effect. After all the parts are installed, the insulating sealant can be injected into the inside of the roller 11. After the insulating sealant solidifies, the conductive member 12 is integrated with the conductive roller, and the insulating sealant can block the opening 114 and cover the conductive member 12. If the brush 13 is damaged or needs to be replaced during subsequent use, it can be removed and replaced by using professional tools from the outside.

[0071] In some embodiments, the conductive assembly 20 further includes a plurality of conductive connecting members 22, and the plurality of conductive connecting members 22 are respectively electrically connected with the plurality of conductive contacts 21; and the plurality of conductive connecting members 22 are respectively connected with the plurality of conductive members 12 through wires 23.

[0072] Optionally, the conductive connecting member 22 can be a conductive screw.

[0073] The number of the conductive connecting member 22 can correspond to the number of the conductive contact 21. The conductive member 12 can be electrically connected with the conductive connecting member 22, such as the conductive screw, through the wire 23. The plurality of conductive connecting members 22, such as the conductive screws, can be respectively electrically connected with the corresponding conductive contacts 21, that is, the conductive contact 21 can be connected with the conductive member 12 through the conductive connecting member 22, such as the conductive screw, so as to form a communication from the brush 13 to the conductive contact 21. Further, the conductive contact 21 at the end, that is, the ring-shaped contact, is in contact with the electrode assembly 30 mounted on the fixed plate, such as the second support plate 72, to form an external circuit.

[0074] Optionally, the conductive contact 21 can be made of a material with good corrosion resistance, wear resistance, and electrical conductivity, so that the surface in contact with the first electrode 31 or the second electrode 32 has a low friction coefficient, thereby ensuring smooth rotation of the conductive roller 10 without jamming.

[0075] Optionally, as shown in FIGS. 6-7, a plurality of fixing grooves 113 are arranged in the side wall of the roller 11, i.e., a plurality of fixing grooves 113 are arranged in the side wall of each mounting groove 111, the plurality of fixing grooves 113 are arranged in the circumferential direction of the roller 11, and each fixing groove 113 extends in the axial direction of the roller 11; the fixing groove 113 is in communication with the mounting groove 111 through the through hole 112, and the fixing groove 113 is in communication with the cavity of the roller 11 through the opening 114; the two ends of the conductive member 12 are arranged in the fixing groove 113 correspondingly so that the cavity of the roller 11 is isolated from the roller brush 13 to form a seal.

[0076] In the embodiment, the plurality of fixing grooves 113 are arranged in the side wall of the roller 11, the number of the fixing grooves 113 can correspond to the number of the conductive members 12, and the fixing grooves 113 can be used to mount and fix the conductive members 12, e.g., the plurality of conductive members 12 are arranged in the corresponding fixing grooves 113 respectively, and in order to cooperate with the arrangement of the conductive members 12 or the roller brush 13, the plurality of fixing grooves 113 are arranged in the circumferential direction of the roller 11, and each fixing groove 113 extends in the axial direction of the roller 11.

[0077] The fixing groove 113 can also be called a limiting groove, which can not only be used to mount the conductive member 12, but also be used to limit the conductive member 12, the fixing groove 113 can separate the two adjacent conductive members 12, and can also accurately position the conductive member 12.

[0078] The fixing groove 113 can be located at the side end of the through hole 112, and the fixing groove 113 can be in communication with the mounting groove 111 through the through hole 112. Further, in order to facilitate the connection of the conductive member 12 and the conductive contact 21 of the conductive assembly 20, the opening 114 can be arranged in the cavity of the roller 11, the fixing groove 113 is in communication with the cavity of the roller 11 through the through hole 112, so that the conductive member 12 in the fixing groove 113 is electrically connected to the conductive contact 21 through the connecting wire 23 or the like.

[0079] Optionally, at least one of the surface of the roller brush 13 facing the bottom wall of the mounting groove 111 and the bottom wall of the mounting groove 111 is provided with an annular groove; the sealing material includes a sealing ring 40 arranged in the annular groove. The sealing ring 40 arranged in the annular groove can be used to form a seal between the mounting groove 111 and the through hole 112.

[0080] The sealing material can be a sealing ring 40, such as a sealing ring 40 made of flexible material. In order to facilitate installation of the sealing ring 40 and ensure sealing effect, an annular groove can be arranged in at least one of the roller brush 13 or the mounting groove 111, such as an annular groove arranged on the surface of the bottom wall of the mounting groove 111 facing the roller brush 13, and the sealing ring 40 is arranged in the annular groove; or an annular groove can be arranged in the bottom wall of the mounting groove 111, and the sealing ring 40 is arranged in the annular groove; or an annular groove can be arranged on the surface of the bottom wall of the mounting groove 111 facing the roller brush 13 and the bottom wall of the mounting groove 111, and the sealing ring 40 is arranged in the annular groove. In this way, the sealing connection between the roller brush 13 and the mounting groove 111 can be fully ensured, and the sealing effect can be improved.

[0081] Therefore, by arranging the sealing ring 40, the replaceability of the conductive roller 10 can be improved while ensuring sealing, and the conductive roller 10 can be replaced individually when a single roller brush 13 is damaged or needs to be repaired, without the need for overall replacement of the conductive roller 10, which is beneficial to reduce maintenance cost and greatly improves the convenience of repair.

[0082] In some embodiments, the conductive device further comprises a partition 60 connected between the conductive roller 10 and the conductive assembly 20, for separating the conductive roller 10 and the conductive assembly 20.

[0083] The partition 60 is connected between the conductive roller 10 and the conductive assembly 20, and can be used to separate the conductive roller 10 and the conductive assembly 20. For example, the partition 60 can be arranged in the mounting plate of the plating tank, or the partition 60 can be arranged in the third support plate 73, so as to isolate the plating solution, thereby avoiding contact between the conductive assembly 20 and the conductive solution, ensuring dryness of the conductive contact 21 at one end of the conductive roller 10, and ensuring the conductive effect.

[0084] In some embodiments, the conductive device further comprises a first support plate 71, a second support plate 72 and a third support plate 73 arranged along the axial direction of the roller cylinder 11; both ends of the roller cylinder 11 are rotatably connected to the first support plate 71 and the second support plate 72 through bearings; the third support plate 73 is arranged between the first support plate 71 and the second support plate 72, and the partition is arranged in the third support plate 73.

[0085] Optionally, the bearing includes a first bearing 81 and a second bearing 82. The first support plate 71 and the second support plate 72 can be used to fix the first bearing 81 and the second bearing 82 respectively, for example, one end of the roller 11 can be connected to the first support plate 71 through the first bearing 81, and the other end of the roller 11 can be connected to the second support plate 72 through the second bearing 82. A third support plate 73 is arranged between the first support plate 71 and the second support plate 72, and the barrier 60 is installed in the third support plate 73. The conductive roller 10 and the electroplating solution can be arranged between the first support plate 71 and the third support plate 73, the conductive assembly 20 can be arranged between the third support plate 73 and the second support plate 72, and the electrode assembly 30 can be installed in the second support plate 72.

[0086] In the embodiment, the first support plate 71 and the third support plate 73 can be used as part of the sidewall of the tank body in the electroplating tank, so as to isolate the electroplating solution and arrange the electroplating solution between the first support plate 71 and the third support plate 73. Meanwhile, the first support plate 71 and the third support plate 73 can also be used for supporting and installing, for example, as the mounting surface of the conductive roller 10 or various shafts, for installing the conductive roller 10, the barrier 60, the electrode assembly 30, or for installing various shafts or transmission rollers, etc.

[0087] In some embodiments, the outer side of the roller brush 13 is provided with an insulating sleeve 131. The insulating sleeve 131 arranged on the outer side of the roller brush 13 can play an insulating role and form an insulating structure with the outside, so as to avoid or reduce the transition current consumption and copper deposition.

[0088] Optionally, the roller brush 13 includes a conductive brush 132, an insulating sleeve 131 and a conductive metal structure 133. At least part of the conductive brush 132 protrudes from the outer wall of the roller 11 and is used to contact the workpiece to be plated. The conductive brush 132 is mechanically and electrically connected to the conductive part 12 through the conductive metal structure 133. The insulating sleeve 131 is arranged on the outer side of the conductive brush 132, and at least part of the insulating sleeve 131 is embedded in the mounting groove 111.

[0089] In the embodiment, the conductive brush 132 and the conductive metal structure 133 are connected through a certain process technology, and then are formed by injection molding to form an external insulating part, i.e. the insulating sleeve 131, so as to avoid or reduce the transition current consumption and copper deposition. Further, the conductive brush 132 and the internal conductive part 12 of the conductive roller 10 (the conductive brush 132 cannot be replaced alone) are arranged on the conductive roller 10 after being connected and installed, and are connected to the conductive assembly 20 through the wire 23, so as to form the communication of the conductive brush 132 to the conductive contact 21. Each two adjacent conductive contacts 21 are insulated, and each row of conductive brushes 132 is also insulated. By arranging a sealing material such as insulating glue in the roller 11 of the conductive roller 10, the internal insulation and sealing can be ensured, and the liquid can be prevented from entering to cause internal short circuit and corrosion.

[0090] In some embodiments, the material of the roller brush 13 is a flexible conductive material, which includes metal fibers or carbon fibers. That is, the conductive brush 132 in the roller brush 13 is a flexible conductive material, which includes metal fibers or carbon fibers.

[0091] By distributing a certain number of roller brushes 13 on the roller barrel 11 of the conductive roller 10, and the conductive brush 132 in the roller brush 13 is selected to be a flexible conductive material, such as a material that is flexible and can restore its original state after being stressed, and is resistant to plating corrosion, for example, it can be metal fibers, carbon fibers, or other similar materials. In this way, the conductive brush 132 can make flexible contact when it contacts the workpiece to be plated, reducing or avoiding damage to the workpiece to be plated.

[0092] Optionally, the above-mentioned roller brush 13 can be divided into multiple groups, and the multiple groups of roller brushes 13 are arranged along the circumferential direction of the roller barrel 11, and the roller brushes 13 in each group are arranged along the axial direction of the roller barrel 11. The arrangement mode of the multiple groups of roller brushes 13 can have multiple modes. For example, in some cases, the two adjacent groups of roller brushes 13 can be arranged in alignment in the circumferential direction of the roller barrel 11 and in the axial direction of the roller barrel 11.

[0093] In other cases, the two adjacent groups of roller brushes 13 are arranged in staggered manner in the axial direction of the roller barrel 11. Compared with the aligned distribution mode of the roller brushes 13, by arranging the roller brushes 13 on the roller barrel 11 in staggered manner, it is helpful to ensure that at least one roller brush 13 will appear on each longitudinal section, so that each part, such as each groove part, on the workpiece to be plated will be passed by the brush during the plating process, ensuring the uniformity during the plating process, and further improving the uniformity of the plating layer and the quality of the plating layer.

[0094] In yet other cases, the multiple roller brushes 13 are arranged in spiral staggered manner on the outer wall of the roller barrel 11. In this way, by adopting the spiral staggered arrangement mode, the coverage area of the roller brush 13 can be further expanded, which can further ensure that at least one roller brush 13 will appear on each longitudinal section, so that each part, such as each groove part, on the workpiece to be plated will be passed by the brush during the plating process. Since the uniformity of the thickness of the entire workpiece to be plated will change with the coverage area of the roller brush 13, the uniformity during the plating process can be further ensured, and the uniformity of the plating layer and the quality of the plating layer can be further improved.

[0095] In summary, the provided conductive device includes a conductive roller 10, a conductive assembly 20, an electrode assembly 30, a barrier 60, a first support plate 71, a second support plate 72, and a third support plate 73, and further includes a roller shaft (provided in the roller barrel 11), bearings, gears, and other components. The conductive roller 10 includes a roller barrel 11, a plurality of conductive elements 12, and a plurality of roller brushes 13, the conductive assembly 20 includes a plurality of conductive contacts 21, and the electrode assembly 30 includes a first electrode 31 and a second electrode 32 with opposite polarities. The barrier 60 is connected between the conductive roller 10 and the conductive assembly 20, and can be used to separate the conductive roller 10 and the conductive assembly 20, and can play a role in blocking liquid. The roller brush 13 includes a flexible conductive brush 132, which can be made of a material that is flexible, can return to its original state under no force, and is resistant to corrosion by plating chemicals. The material can be metal fiber, carbon fiber, or other similar materials. This can avoid damage to the workpiece to be plated. The roller barrel 11 of the conductive roller 10 is provided with support plates on both sides of the shaft end, such as the first support plate 71 and the second support plate 72, which can be used to fix the bearings. The third support plate 73 is provided between the first support plate 71 and the second support plate 72, and the barrier 60 can be placed in the third support plate 73 to isolate the plating liquid, and can ensure the dryness of the conductive assembly 20 at one end of the conductive roller 10. The conductive contact 21 is installed at one end of the conductive roller 10, and the conductive contact 21 can rotate together with the conductive roller 10. Each conductive contact 21 has its corresponding connected roller brush 13. The first electrode 31 and the second electrode 32, i.e. the positive and negative electrodes, are provided on both sides of the conductive contact 21 and are installed on one side support plate, such as the second support plate 72. Therefore, the first electrode 31 and the second electrode 32 remain relatively inactive. With the rotation of the conductive roller 10, the conductive contacts 21 successively make electrical contact with the first electrode 31 and the second electrode 32. In addition, upper and lower anodes are provided in the plating liquid, which are located on the upper and lower outer sides of the vertical direction of the conductive roller 10, and the conductive roller 10 and other transmission mechanisms are sandwiched therebetween. During plating, the conductive brush is completely immersed in the plating liquid.

[0096] Further, the conductive brush 132 is installed and connected with the internal conductive element 12 of the conductive roller 10 (the conductive brush 132 cannot be replaced alone), and is arranged on the conductive roller 10. It can be connected to the conductive assembly 20 through the wire 23, thereby forming a communication from the conductive brush 132 to the conductive contact 21. The end conductive contact 21, i.e. the ring-shaped contact, is in contact with the electrode assembly 30 installed on the fixed plate, such as the second support plate 72, forming an external circuit. Each adjacent two conductive contacts 21 are insulated and separated, and each row of conductive brushes 132 is also insulated and separated. By providing a sealing material such as insulating glue inside the roller barrel 11 of the conductive roller 10, the internal insulation and sealing can be ensured, and the entry of liquid can be reduced or avoided, thereby preventing internal short circuit and corrosion.

[0097] The conductive brush 132 and the conductive metal structure 133 are connected by a certain process technology, and then an insulating sleeve 131 is formed by injection molding, which can reduce or avoid the transition current consumption and copper plating. The surface of the roller brush 13 facing the bottom wall of the mounting groove 111, or the contact surface of the roller brush 13 and the conductive part 12 is provided with a sealing material such as a sealing ring 40, which can prevent liquid from entering the inside of the conductive roller 10 and causing corrosion or internal conductive part 12 conduction.

[0098] It should be understood that during the operation of the conductive device, the conductive roller 10 will rotate under the drive of the driving mechanism, the conductive assembly 20 will also rotate with the rotation of the conductive roller 10, and the electrode assembly 30 can remain relatively stationary. As an example, a roller shaft can be provided in the roller barrel 11 of the conductive roller 10, one end of the roller shaft can be connected with the driving mechanism through a transmission mechanism, the transmission mechanism is driven to rotate by the driving mechanism, the roller shaft is driven to rotate by the transmission mechanism, and the roller barrel 11 and the roller brush 13, the conductive assembly 20 connected to the roller barrel 11 are driven to rotate. Alternatively, the driving mechanism can be a driving motor, and the transmission mechanism can be a gear transmission mechanism. Of course, other driving mechanisms and transmission mechanisms can also be used as long as they can drive the conductive roller 10 to rotate. The present embodiment is not limited in this regard.

[0099] In some embodiments, an electroplating device is also provided, which includes an electroplating tank and the aforementioned conductive device arranged in the electroplating tank.

[0100] Optionally, the electroplating device can be a horizontal electroplating device.

[0101] The electroplating device of the present embodiment includes the aforementioned conductive device, and thus at least has all the features and advantages of the conductive device, which will not be described here.

[0102] In the aforementioned electroplating device, the roller barrel 11 of the conductive roller 10 can rotate, so as to guide the movement of the workpiece to be plated in the electroplating tank, i.e., the conductive roller 10 can simultaneously serve as a horizontal transmission mechanism and a cathode conductive mechanism, which plays a role in driving the workpiece to be plated and also plays a role in cathode conductive of the workpiece to be plated. In addition, the conductive roller 10 of the present embodiment can be arranged in the horizontal electroplating device in the form of clamping the workpiece to be plated in pairs, so as to realize double-sided electroplating of the workpiece to be plated.

[0103] In the aforementioned electroplating device, the electroplating tank can include a tank body, the tank body is provided with the conductive device, and is also provided with an electroplating solution and a driving device and other structures. The driving device can be used to drive the workpiece to be plated to move horizontally in the electroplating tank. The specific arrangement or working principle of the driving device and other parts of the electroplating tank can refer to the prior art, and the present embodiment is not limited in this regard.

[0104] Optionally, an anode assembly is arranged in the electroplating solution, the anode assembly comprises a first anode and a second anode arranged in a spaced manner, the first anode and the second anode are arranged above and below the conductive roller 10 respectively, and the first anode and the second anode are connected to the positive pole of the power supply. The first anode and the second anode can sandwich the conductive roller 10 and other transmission mechanisms such as transmission rollers.

[0105] During electroplating, the first anode and the second anode are connected to the positive pole of the electroplating power supply as the electroplating anode, one of the first electrode and the second electrode in the electrode assembly is connected to the negative pole of the power supply, and the roller brush connected thereto is used as the electroplating cathode. The electroplating solution is used as the electroplating medium to form an electroplating loop. Under the action of the generated electric field, the workpiece to be plated is electroplated, i.e., a plating film is formed on the surface of the workpiece to be plated.

[0106] The parts not described in detail in the specification of the present application are known to those skilled in the art.

[0107] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0108] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0109] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrated; they can be mechanically connected, or electrically connected, or in communication with each other; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0110] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. Exemplary expressions of the above terms do not necessarily refer to the same embodiment or example in this specification. Moreover, the described specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine or arrange the various embodiments or examples described in this specification and the features of the various embodiments or examples in a suitable manner without departing from the spirit and scope of the embodiments.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An electrically conductive device, characterized by The conductive device comprises a conductive roller, a conductive assembly and an electrode assembly. The conductive roller comprises a roller barrel, a plurality of conductive pieces and a plurality of roller brushes, the roller brushes are arranged on the outer wall of the roller barrel respectively and along the circumferential direction of the roller barrel and the axial direction of the roller barrel, the conductive pieces are arranged on the side wall of the roller barrel along the circumferential direction of the roller barrel, and each conductive piece is electrically connected with at least one roller brush; A sealing material is arranged between each roller brush and the roller barrel and / or in the barrel cavity of the roller barrel; The conductive assembly is connected to one end of the conductive roller and can rotate with the conductive roller, the conductive assembly comprises a plurality of conductive contacts, and each conductive contact is electrically connected with a conductive piece; The electrode assembly comprises a first electrode and a second electrode, any one of the conductive contacts is in contact with the first electrode, and any other conductive contact is in contact with the second electrode. The outer wall of the roller barrel is provided with a plurality of mounting grooves, and each roller brush is arranged in the mounting groove in a one-to-one correspondence, and one end of each roller brush protrudes out of the outer wall of the roller barrel.

2. The electrically conductive device of claim 1, wherein, The bottom wall of the mounting groove is provided with a through hole, the roller brush passes through the through hole and is connected with the conductive piece.

3. The electrically conductive device of claim 2, wherein, One end of the roller brush is threadedly connected with the conductive piece.

4. The electrically conductive device of claim 3, wherein, The sealing material is arranged between each roller brush and at least part of the groove wall of the corresponding mounting groove.

5. The electrically conductive device of claim 4, wherein, The conductive piece is arranged in the barrel cavity of the roller barrel and is fastened and connected with the roller barrel by a fastener.

6. The electrically conductive device of claim 5, wherein, The sealing material is an insulating sealant that seals the gap between the roller brush and the mounting groove.

7. The electrically conductive device of claim 6, wherein, Each mounting groove is provided with a fixing groove in the side wall, and each fixing groove extends along the axial direction of the roller barrel.

8. The electrically conductive device of claim 5, wherein, The fixing groove and the mounting groove are communicated through the through hole, and the fixing groove and the barrel cavity of the roller barrel are communicated through an opening. The two ends of the conductive piece are arranged in the fixing groove in a corresponding manner so that the barrel cavity of the roller barrel is isolated from the roller brush to form a seal. The surface of the roller brush facing the bottom wall of the mounting groove is provided with an annular groove, and the sealing material is a sealing ring arranged in the annular groove to form a seal between the mounting groove and the through hole.

9. The electrically conductive device of claim 8, wherein, The conductive device further comprises a partitioning piece connected between the conductive roller and the conductive assembly for separating the conductive roller and the conductive assembly.

10. The electrically conductive device of any one of claim 1, wherein, The conductive assembly further comprises a plurality of conductive connectors, and each conductive connector is electrically connected with a conductive contact.

11. The electrically conductive device of any one of claim 1, wherein, The conductive connectors and the conductive pieces are respectively connected by wires. The outer side of the roller brush is provided with an insulating sleeve.

12. The electrically conductive device of any one of claim 1, wherein, The material of the roller brush is a flexible conductive material, and the flexible conductive material comprises metal fibers or carbon fibers.

13. The electrically conductive device of any one of claim 1, wherein, The conductive device further comprises a first support plate, a second support plate and a third support plate.

14. The electrically conductive device of claim 10, wherein, The two ends of the roller barrel are rotatably connected to the first support plate and the second support plate through bearings respectively. The third support plate is arranged between the first support plate and the second support plate, and the partitioning piece is arranged on the third support plate. The conductive device of claim 1 is included.

15. An electroplating apparatus, characterized by, ​

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