Anode unit and electroplating device

Abstract

The utility model relates to an anode unit and an electroplating device, and the anode unit comprises at least one anode piece; the anode piece is mounted in the mounting seat, and the working surface of the anode piece is exposed; and the conductive assembly is arranged on the mounting seat and is connected and electrically communicated with the anode piece. According to the anode unit, by arranging the conductive assembly, current transmission in the electroplating process can be stable, and winding of the conductive wire can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery sheet manufacturing, in particular to an anode unit and an electroplating device. Background Art

[0002] Electroplating is the process of depositing the metal to be plated on the workpiece by the principle of electrolysis. In general electroplating processes, the workpiece to be plated is electrically connected to the negative pole of the power supply, and the anode is electrically connected to the positive pole of the power supply to form an electric field circuit. When the power is turned on, the cations in the solution are attracted to the cathode and reduced to atoms that accumulate on the surface of the workpiece to be plated at the cathode, thus completing the electroplating process.

[0003] In the prior art, the anode element is generally directly connected to the positive electrode of the power supply through a conductive wire, which is not only unstable, but also prone to problems such as conductive wire entanglement, resulting in unstable current transmission. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an anode unit which can ensure stable current transmission during electroplating and avoid winding of conductive wires.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An anode unit comprises: at least one anode member; a mounting seat in which the anode member is mounted and the working surface of the anode member is exposed; and a conductive component arranged on the mounting seat and connected to the anode member and in electrical communication.

[0007] In some specific embodiments, the conductive component includes a first conductive bracket and a second conductive bracket, the first conductive bracket is connected to and electrically communicated with the anode member, and the second conductive bracket is connected to and electrically communicated with the first conductive bracket.

[0008] Preferably, the anode member comprises a body and a conductive column extending from an end of the body to the outside of the body, and the first conductive support is connected to the conductive column to be electrically connected.

[0009] Preferably, a plurality of the conductive pillars are arranged at intervals along the length extension direction of the body.

[0010] In some specific embodiments, a plurality of anode members are spaced apart along the length direction of the mounting seat; the plurality of anode members are all connected to and electrically connected with one first conductive bracket, and the first conductive bracket is connected to and electrically connected with the second conductive bracket, or the plurality of anode members are divided into a plurality of groups, and each group of anode members is connected to and electrically connected with one first conductive bracket, and there are a plurality of first conductive brackets, and at least one of them is connected to and electrically connected with the second conductive bracket.

[0011] In some specific embodiments, along the thickness direction of the mounting seat, two anode members are arranged at intervals, and a partition is arranged in the interval area between the two anode members, and the partition is made of insulating material.

[0012] Preferably, an ion membrane is provided on the surface of the anode member.

[0013] In some specific embodiments, the mounting seat includes a seat body, the seat body is provided with a receiving groove from top to bottom along its width direction, the seat body is provided with an exposure hole along its thickness direction, the exposure hole is connected to the receiving cavity, the anode member is arranged in the receiving groove, and the working surface is exposed from the exposure hole; the exposure hole passes through the opposite side walls or one side wall of the receiving groove.

[0014] In some specific embodiments, the mounting seat also includes a cover plate fixedly arranged on the upper part of the seat body, the cover plate covers the upper opening of the accommodating groove, a conductive hole is arranged on the cover plate, the external conductive part of the anode component is exposed from the conductive hole, and the accommodating groove and the conductive hole together form a accommodating cavity.

[0015] Preferably, the anode component includes a body and a conductive column extending from the end of the body to the outside of the body, an external through tube is provided on the cover plate, the conductive hole is provided in the external through tube, the external conductive part is the conductive column, and the external through tube is sleeved on the conductive column and exposes the upper part of the conductive column.

[0016] In some specific embodiments, the conductive component includes a first conductive bracket and a second conductive bracket, the first conductive bracket is connected to and electrically connected with the anode member, the second conductive bracket is connected to and electrically connected with the first conductive bracket, the first conductive bracket is arranged on the cover plate, and the upper part of the conductive column is connected to and electrically connected with the first conductive bracket.

[0017] In some specific embodiments, the cover plate is provided with exhaust holes penetrating the upper and lower end surfaces of the cover plate.

[0018] The utility model also provides an electroplating device, wherein the electroplating device has an anode unit as described in any one of the above items.

[0019] In some specific embodiments, the electroplating device has an electroplating tank, in which an anode unit is installed. A plurality of anode units are provided along the length extension direction of the anode unit, and the anode parts of two adjacent anode units are connected to and electrically communicated with the same conductive component, and the anode unit located at the end is connected to and electrically communicated with a power source through the conductive component.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: the anode unit of the utility model adopts a method of setting a conductive component on a mounting seat. Since the conductive component is fixedly connected to the mounting seat, the connection stability of the conductive component and the stability of conductive transmission are improved, so that the positive current can be continuously delivered to the anode component; in addition, the anode component is installed in the mounting seat so that only the working surface is exposed and the rest will be covered, which can effectively avoid the edge effect, thereby improving the plating uniformity of the part to be electroplated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the anode unit of this embodiment (the second conductive bracket is connected to the left and right ends of the first conductive bracket respectively, and a second conductive bracket at one end is removed);

[0022] Figure 2 is a three-dimensional schematic diagram of the anode unit of this embodiment (the second conductive bracket is connected to one end of the first conductive bracket);

[0023] Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle;

[0024] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0025] Figure 5 is a front view schematic diagram of the anode unit of this embodiment;

[0026] Figure 6 This is one of the cross-sectional schematic diagrams of the anode unit of this embodiment after the second conductive bracket is removed;

[0027] Figure 7 for Figure 6 A partial enlarged schematic diagram in the middle;

[0028] Figure 8 The second cross-sectional schematic diagram of the anode unit of this embodiment after the second conductive bracket is removed;

[0029] Fig. 9 This is a three-dimensional schematic diagram of the anode unit of this embodiment after removing the cover plate and the conductive component;

[0030] Fig.10 for Fig. 9 A partial enlarged schematic diagram in the middle;

[0031] Fig.11 is a three-dimensional schematic diagram of the anode unit of this embodiment (a conductive component is connected to one or more anode components at the same time);

[0032] Fig.12It is a three-dimensional schematic diagram of multiple anode units connected in series in this embodiment.

[0033] Among them: 1. anode component; 11. main body; 12. conductive column; 2. mounting seat; 2a. accommodating cavity; 21. seat body; 211. exposure hole; 212. exhaust hole; 22. cover plate; 221. exhaust hole; 31. first conductive bracket; 32. second conductive bracket; 4. partition. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0035] In the following description, the directions such as "front", "back", "left", "right", "up", and "down" are all based on Figure 5 , the right side direction in the figure is "right", the left side direction is "left", the upper side direction is "up", the lower side direction is "down", and the directions perpendicular to the paper plane in the figure are "front" and "back". The definitions of the above directions are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0036] The anode unit of the utility model is applied to an electroplating device, such as Figure 1 and Figure 2 As shown, the anode unit includes an anode member 1 , a mounting seat 2 and a conductive component 3 .

[0037] The cations in the anode 1 are reduced on the surface of the workpiece to be plated to form a coating. Figure 6 , Figure 8 and Fig. 9 As shown, the anode member 1 includes a body 11 and a conductive column 12, and the conductive column 12 extends from the upper end of the body 11 to the outside of the body 11. The conductive column 12 is electrically connected to the conductive component 3, and the conductive column 12 is the external conductive part of the anode member. The conductive component 3 is electrically connected to the positive electrode of the power supply. Electrical connection means that in a closed circuit, the current can flow from one to another, so that the positive current can be delivered to the anode member 1. The conductive component 3 delivers the current to the body 11 through the conductive column 12, so that only the body 11 part of the anode member 1 of the anode unit needs to be immersed in the electroplating solution, which can effectively prevent the conductive component 3 from being electroplated.

[0038] The mounting seat 2 has a receiving cavity 2a, and the receiving cavity 2a of the mounting seat 2 is used to place the anode member 1. Specifically, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the mounting seat 2 includes a seat body 21, and the seat body 21 is provided with a receiving groove from top to bottom along its width direction. The mounting seat 2 also includes a cover plate 22 fixedly arranged on the top of the seat body 21, and the cover plate 22 is covered on the upper opening of the receiving groove. The cover plate 22 is provided with an external through pipe, and the external through pipe is provided with conductive holes penetrating the upper and lower end surfaces thereof. The receiving groove and the conductive holes together form a receiving cavity 2a for placing the anode member 1, and the external through pipe is sleeved on the conductive column 12 and exposes the upper part of the conductive column 12.

[0039] There is at least one exposure hole 211 on the side walls on both sides of the seat body 21, and the exposure hole 211 is connected to the accommodating chamber 2a, so that the working surface of the anode component 1 placed in the accommodating chamber 2a is exposed, and the working surface corresponds to the position of the plated surface of the component to be electroplated, so that the cations on the working surface can enter the electroplating solution, be free and adhere to the plated surface.

[0040] Preferably, a plurality of exposure holes 211 are arranged at intervals along the length extension direction of the seat body 21 , which can reduce the area of ​​a single exposure hole 211 and avoid the exposure hole 211 being too large to affect the stability of the mounting seat 2 .

[0041] The exposure hole 211 may penetrate the opposite side walls or one side wall of the receiving tank. When the exposure hole 211 penetrates the opposite side walls of the receiving tank, the two oppositely disposed working surfaces of the anode member 1 in the receiving chamber 2a are exposed, so that the two receiving surfaces are electroplated at the same time. When the exposure hole 211 penetrates one side surface of the seat body 21, only one working surface of the anode member 1 in the receiving chamber 2a is exposed, and the anode unit can only electroplate one receiving surface.

[0042] During the electroplating process, the workpiece to be electroplated and the anode unit immersed in the electroplating solution are energized to form a current loop, thereby achieving electroplating of the workpiece to be electroplated. However, this electroplating process has the problem that the current density at the edge of the workpiece to be electroplated is large and the current density at the center is small, thereby generating the problem of edge effect. The edge effect makes the coating thickness at the edge of the workpiece to be electroplated larger and the thickness in the middle smaller, thereby making the coating thickness on the entire workpiece to be electroplated uneven, resulting in low product quality and poor effect achieved by using the product. In response to this problem, the body 11 of the anode part 1 has four edges. When the anode part 1 is set in the accommodating cavity 2a of the mounting seat 2, the exposure hole 211 can expose the working surface of the anode part 1. The left and right sides and the bottom of the seat body 21 and the lower part of the cover plate 22 are respectively blocked on the outside of a corresponding edge of the body 11 of the anode part 1, thereby blocking the edge of the anode part 1, which is the non-working surface of the anode part 1, so as to reduce the edge effect during the electroplating process, thereby improving product quality.

[0043] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the cover plate 22 is provided with an exhaust hole 221, and the exhaust hole 221 penetrates the upper and lower end surfaces of the cover plate 22, so that the outside of the mounting seat 2 is connected with the accommodating cavity of the mounting seat 2. In this way, during the electroplating process, the anode member 1 will generate gas when reacting, and the generated gas can be discharged to the outside of the accommodating cavity through the exhaust hole 221 on the cover plate 22, so as to prevent the bubbles from covering the surface of the anode member 1 and affecting its reaction. Among them, a plurality of exhaust holes 221 can be provided, and they can be respectively provided at different positions of the cover plate 22, for example, each external through tube is provided with at least one exhaust hole 221, so that the gas can be discharged from multiple positions.

[0044] Furthermore, a vent hole 212 communicating with the accommodating cavity may be provided on the seat body 21. Figure 8 shown.

[0045] The conductive component 3 includes a first conductive bracket 31 and a second conductive bracket 32, and the first conductive bracket 31 is electrically connected to the anode member 1. The first conductive bracket 31 is arranged on the cover plate 22 and is connected to the portion of the conductive column 12 exposed from the cover plate 22. One end of the second conductive bracket 32 ​​is connected to and electrically connected to the first conductive bracket 31, and the connection is arranged on the cover plate 22. The other end of the second conductive bracket 32 ​​is electrically connected to the power supply. In this way, the positive current is transported to the second conductive bracket 32 ​​through the conductive wire, and is transferred from the second conductive bracket 32 ​​to the first conductive bracket 31, and then transported to the anode member 1, so that the anode member 1 immersed in the electroplating solution reacts. Since only a short section of conductive wire needs to be arranged between the second conductive bracket 32 ​​and the positive electrode of the power supply, the problem of conductive wire winding can be avoided, and the stability of current transmission can be improved.

[0046] In this embodiment, in each group of conductive components 3, a second conductive bracket 32 ​​can be connected to both ends of the first conductive bracket 31. In this case, only one second conductive bracket 32 ​​needs to be electrically connected to the positive electrode of the power supply. Figure 1 The purpose of providing two second conductive brackets 32 is to place the anode unit in the electroplating tank so that the two second conductive brackets 32 can be placed on the electroplating tank, thereby facilitating the placement of the anode unit.

[0047] Of course, when the anode unit is arranged in the electroplating tank by other means, one end of the first conductive bracket 31 may be connected to only one second conductive component 32, such as Figure 2 shown.

[0048] A plurality of conductive posts 12 may be arranged at intervals along the length extension direction of the body 11, and each conductive post 12 is connected to the first conductive support 31. In this way, the current delivered to the first conductive support 31 can be delivered to the anode member 1 through multiple conductive posts 12 at the same time, so that the current density in the body 11 of the anode member 1 is evenly distributed and the conductivity efficiency is high, thereby improving the electroplating quality and electroplating efficiency. At the same time, even if a conductive post 12 cannot be transmitted from the conductive post 12 to the body 11 of the anode member 1 due to not being effectively connected to the first conductive support 31 or other reasons, the current can still be transmitted to the body 11 of the anode member 1 through other conductive posts 12, which can ensure the stability of current transmission during the electroplating process.

[0049] In a specific embodiment, only one anode member 1 may be disposed in the receiving cavity of the mounting seat 2, and correspondingly, one group of conductive components 3 is also disposed. In this case, the electroplating effect achieved by the corresponding sides of the two to-be-electroplated parts located on both sides of the anode member 1 is the same.

[0050] In another specific embodiment, two anode components 1 may also be disposed in the accommodating cavity of the mounting seat 2 , and the two anode components 1 are spaced apart along the thickness direction of the accommodating cavity of the mounting seat 2 .

[0051] The spacing distance between the two anode members 1 can prevent the two anode members 1 from influencing each other.

[0052] Preferably, a separator 4 is provided in the interval area between the two anode members 1, and the separator 4 is made of insulating material to prevent the two anode members 1 from affecting each other. Fig. 9 and Fig.10 By providing the partition 4, the distance between the two anode members 1 can be reduced, thereby making the structure of the entire anode unit more compact.

[0053] When two anode members 1 are provided, one group of conductive components 3 may be provided, and the first conductive bracket 31 of the conductive component 3 is electrically connected to the two anode members 1 at the same time. In this way, since the two anode members 1 transmit current through the same conductive component 3, the current transmitted to the two anode members 1 is the same, so that the electroplating effect achieved on the corresponding side of the plated surface of the to-be-plated member located on the corresponding side of each anode member 1 is the same.

[0054] When there are two anode components 1, two groups of conductive components 3 can also be provided, and the two groups of conductive components 3 correspond to the two anode components 1 one by one, respectively. The first conductive bracket 31 of each group of conductive components 3 is electrically connected to the corresponding anode component 1, and the second conductive bracket 32 ​​connected to the first conductive bracket 31 can be electrically connected to the positive electrode of the power supply. In this way, a current path is formed between each anode component 1 and the positive electrode of the power supply, and the two current paths can respectively transmit currents of different magnitudes to the two anode components 1, so that the electroplating effects achieved on the corresponding side of the plated surface of the workpiece to be electroplated on the corresponding side of each anode component 1 are different. Of course, the two current paths can also respectively transmit the same current to the two anode components 1, so that the electroplating effects achieved on the corresponding side of the plated surface of the workpiece to be electroplated on the corresponding side of each anode component 1 are the same.

[0055] In a specific embodiment, along the length direction of the mounting seat 2, a plurality of anode members 1 are arranged in the receiving groove at intervals. The plurality of anode members 1 are connected to and electrically connected with a first conductive bracket 31, and the first conductive bracket 31 is connected to and electrically connected with the second conductive bracket 32, such as Fig.11 Or the plurality of anode members 1 are divided into a plurality of groups, each group of anode members 1 is connected to and electrically connected with a first conductive support 31, there are a plurality of first conductive supports 31, and at least one of them is connected to and electrically connected with a second conductive support 32.

[0056] An ion membrane is disposed on the surface of the anode member 1, and the ion membrane can reduce the loss of the electroplating solution. Specifically, the ion membrane can be a cation exchange membrane, and only cations with positive charges can pass through the cation exchange membrane, while anions cannot pass through due to like-charge repulsion. Due to the selective permeability, the anode member can be prevented from reacting with unnecessary ions.

[0057] The utility model also provides an electroplating device, which comprises the anode unit in the above embodiment. The electroplating device has an electroplating tank, and when the electroplating process is implemented, the anode unit is installed in the electroplating tank as a whole.

[0058] Along the length extension direction of the anode unit, multiple anode units can be sequentially arranged in the electroplating tank. The two first conductive brackets 31 of two adjacent anode units are electrically connected through the same second conductive bracket 32 ​​of one of the anode units, and the second conductive bracket 32 ​​of an anode unit located at the end is electrically connected to the positive electrode of the power supply through a conductive line, that is, multiple anode units are connected in series. Fig.12As shown. In this way, it is only necessary to set a short conductive wire between an anode unit at the end and the positive electrode of the power supply. After the positive current is transmitted to the anode unit, the positive current can be transmitted to the remaining anode units. That is, only one anode unit at the end needs to be electrically connected to the positive electrode of the power supply through the conductive wire, while the remaining anode units are electrically connected through the first conductive bracket 31 and the second conductive bracket 32. There is no need to set a conductive wire for the remaining anode units to be electrically connected to the positive electrode of the power supply, thereby avoiding the problem of conductive wire winding and improving the stability of current transmission.

[0059] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. An anode unit, characterized in that: include: an anode member, at least one; A mounting seat, in which the anode member is mounted so that a working surface of the anode member is exposed; The conductive component is arranged on the mounting seat and is connected to and electrically communicated with the anode component.

2. The anode unit according to claim 1, characterized in that: The conductive component includes a first conductive support and a second conductive support, wherein the first conductive support is connected to and electrically communicates with the anode member, and the second conductive support is connected to and electrically communicates with the first conductive support.

3. The anode unit according to claim 2, characterized in that: The anode member includes a body and a conductive column extending from an end of the body to the outside of the body, and the first conductive support is connected to the conductive column and is electrically connected.

4. The anode unit according to claim 3, characterized in that: A plurality of conductive pillars are arranged at intervals along the length extension direction of the body.

5. The anode unit according to claim 2, characterized in that: Along the length direction of the mounting seat, a plurality of anode members are arranged at intervals; The plurality of anode members are all connected to and electrically connected with one of the first conductive supports, and the first conductive support is connected to and electrically connected with the second conductive support, or the plurality of anode members are divided into a plurality of groups, and each group of anode members is connected to and electrically connected with one of the first conductive supports, and there are a plurality of first conductive supports, and at least one of them is connected to and electrically connected with the second conductive support.

6. The anode unit according to claim 1, characterized in that: Along the thickness direction of the mounting seat, two anode members are arranged at intervals, and a partition is arranged in the interval area between the two anode members, and the partition is made of insulating material.

7. The anode unit according to claim 1, characterized in that: An ion membrane is arranged on the surface of the anode member.

8. The anode unit according to any one of claims 1 to 7, characterized in that: The mounting seat includes a seat body, the seat body is provided with a receiving groove from top to bottom along its width direction, the seat body is provided with an exposure hole along its thickness direction, the exposure hole is connected to the receiving groove, the anode member is arranged in the receiving groove, and the working surface is exposed from the exposure hole; the exposure hole passes through the opposite side walls or one side wall of the receiving groove.

9. The anode unit according to claim 8, characterized in that: The mounting seat also includes a cover plate fixedly arranged on the upper part of the seat body, and the cover plate covers the upper opening of the accommodating groove; the cover plate is provided with conductive holes penetrating its upper and lower end surfaces, and the external conductive part of the anode component is exposed from the conductive holes, and the accommodating groove and the conductive hole together form a accommodating cavity.

10. The anode unit according to claim 1, characterized in that: The mounting seat includes a seat body and a cover plate fixedly arranged on the upper part of the seat body, the cover plate is provided with conductive holes penetrating the upper and lower end surfaces thereof, the external conductive part of the anode member is exposed from the conductive holes, the anode member includes a body and a conductive column extending from the end of the body to the outside of the body, the cover plate is provided with an external through tube, the conductive hole is arranged in the external through tube, the external conductive part is the conductive column, and the external through tube is sleeved on the conductive column and exposes the upper part of the conductive column.

11. The anode unit according to claim 10, characterized in that: The conductive component includes a first conductive bracket and a second conductive bracket, the first conductive bracket is connected to and electrically connected with the anode member, the second conductive bracket is connected to and electrically connected with the first conductive bracket, the first conductive bracket is arranged on the cover plate, and the upper part of the conductive column is connected to and electrically connected with the first conductive bracket.

12. The anode unit according to claim 9, characterized in that: The cover plate is provided with exhaust holes penetrating the upper and lower end surfaces of the cover plate.

13. An electroplating device, characterized in that: The invention comprises the anode unit according to any one of claims 1 to 12.

14. The electroplating device according to claim 13, characterized in that: The electroplating device comprises an electroplating tank in which an anode unit is installed. A plurality of anode units are arranged along the length extension direction of the anode unit. The anode parts of two adjacent anode units are connected to and electrically communicated with the same conductive component. The anode unit located at the end is connected to and electrically communicated with a power source through the conductive component.

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