High-efficiency and low-energy-consumption electroplating device

Abstract

A high-efficiency and low-energy-consumption electroplating device comprises an electroplating tank, a filter tank and a liquid pumping device, the electroplating tank and the filter tank are adjacently arranged, one end of the liquid pumping device is connected to the filter tank, and the other end of the liquid pumping device is connected to the electroplating tank; the electroplating bath comprises an upper bath and a lower cavity, and a connecting hole is formed between the upper bath and the lower cavity. And a stirring device is arranged in the electroplating bath. The stirring device comprises an air compressor, a central shaft and stirring blades arranged on the outer surface of the central shaft; the center shaft is hollow, a plurality of first air holes are formed in the outer surface of the center shaft, the stirring blades are arranged on the center shaft and are in an S shape, and the upper ends and the lower ends of the stirring blades are connected to the center shaft. The device is high in practicability and has high popularization significance.

Description

Technical Field

[0001] This utility model relates to the field of circuit board electroplating technology, and in particular to a high-efficiency, low-energy-consumption electroplating device. Background Technology

[0002] Electroplating is the process of depositing a thin layer of another metal or alloy onto the surface of certain metals using the principle of electrolysis. Electrolysis coats the surface of metal or other materials with a metallic film, thereby preventing metal oxidation (such as rust), improving wear resistance, conductivity, reflectivity, corrosion resistance (e.g., copper sulfate), and enhancing aesthetics. During electroplating, stirring the plating solution accelerates mixing, ensures uniform temperature and concentration, eliminates concentration polarization, increases current density, promotes mass transfer, and improves the speed and efficiency of the electroplating reaction. Therefore, most electroplating equipment incorporates a stirring device. Currently, the conventional stirring device is a rotating stirring rod; however, this type of device suffers from poor mixing uniformity. Utility Model Content

[0003] Therefore, it is necessary to provide a high-efficiency, low-energy-consumption electroplating device to address the shortcomings of existing technologies.

[0004] A high-efficiency, low-energy-consumption electroplating apparatus includes an electroplating tank, a filter tank, and a liquid extraction device. The electroplating tank and the filter tank are arranged adjacent to each other. One end of the liquid extraction device is connected to the filter tank, and the other end is connected to the electroplating tank to reuse the filtered electroplating solution back into the electroplating tank. The electroplating tank has a first drain outlet at the top of one side of the filter tank, and a second drain outlet at the bottom of one side of the filter tank. The electroplating solution is discharged from the first drain outlet to the filter tank for filtration, and the filtered electroplating solution is discharged through the second drain outlet. The liquid extraction device includes a pump and connecting pipes. The pump draws the filtered electroplating solution into the electroplating tank through the pipes. The electroplating tank includes an upper tank and a lower chamber, and a connecting hole is provided between the upper tank and the lower chamber. A stirring device is installed inside the electroplating tank. The stirring device includes an air compressor, a central shaft, and stirring blades disposed on the outer surface of the central shaft; the central shaft is hollow and has a plurality of first air holes disposed on its outer surface; the stirring blades are disposed on the central shaft and are S-shaped, with both their upper and lower ends connected to the central shaft.

[0005] Furthermore, the outer surface of the air compressor is provided with a protective shell, and a water inlet is provided on the side wall of the lower cavity, with the pipe of the liquid pumping device connected to the water inlet.

[0006] Furthermore, the first air hole is inclined relative to the diameter direction of the central axis, and the inclination direction of the first air hole at the same height is the same clockwise or counterclockwise direction along the circumference.

[0007] Furthermore, the stirring blades are provided in three parts, and the two ends of the first stirring blades span a distance of 120 degrees on the horizontal plane of the central axis.

[0008] Furthermore, the cross-section of the stirring blade is elliptical, with a hollow center, and the hollow hole is connected to the hollow pipe of the central shaft.

[0009] Furthermore, a second vent is provided on the side of the stirring blade, and the second vent is connected to the hollow hole.

[0010] Furthermore, the orientations of two adjacent second vents are different; one of the two adjacent second vents is tilted upwards, and the other is tilted downwards.

[0011] In summary, the electroplating apparatus of this invention effectively and uniformly stirs the electroplating solution using a stirring device, thereby eliminating concentration polarization, increasing current density, promoting mass transfer, and improving reaction speed and efficiency. By utilizing the heat from the air compressor to heat the electroplating solution, heat recovery and utilization are achieved, and the air compressor can also be cooled, achieving two benefits at once. This invention is highly practical and has significant potential for widespread application. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a high-efficiency, low-energy-consumption electroplating device according to the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the stirring device;

[0014] Figure 3 for Figure 2 A schematic diagram of the cross-sectional profile of the stirring blades in the middle;

[0015] Figure 4 for Figure 2 A schematic diagram of a partial vertical cross-section of the stirring blades. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] like Figures 1 to 4As shown, this utility model provides a high-efficiency, low-energy electroplating device. The high-efficiency, low-energy electroplating device includes an electroplating tank 10, a filter tank 20, and a liquid extraction device. The electroplating tank 10 and the filter tank 20 are arranged adjacent to each other. One end of the liquid extraction device is connected to the filter tank 20, and the other end is connected to the electroplating tank 10, so as to reuse the filtered electroplating solution back into the electroplating tank 10.

[0018] The electroplating tank 10 has a first drain outlet 11 at the top of one side of the filter tank 20, and a second drain outlet 21 at the bottom of the filter tank 20. The electroplating solution is discharged from the first drain outlet 11 into the filter tank 20 for filtration, and the filtered electroplating solution is discharged through the second drain outlet 21. The liquid extraction device includes a pump 30 and a pipe 31. The pump 30 draws the filtered electroplating solution into the electroplating tank 10 through the pipe 31.

[0019] The electroplating tank 10 includes an upper tank 12 and a lower cavity 13. A plurality of connecting holes 14 are provided between the upper tank 12 and the lower cavity 13. A water inlet is provided on the side wall of the lower cavity 13, and the pipe 31 of the liquid extraction device is connected to the water inlet. A stirring device 40 is provided inside the electroplating tank 10. The stirring device 40 includes an air compressor 41, a central shaft 42, and stirring blades 43 disposed on the outer surface of the central shaft 42. The air compressor 41 is disposed inside the lower cavity 13, and a protective shell is provided on the outer surface of the air compressor 41, which is installed on the top wall of the lower cavity 13. The air compressor 41 has a compressed air outlet, and the central shaft 42 is connected to the compressed air outlet of the air compressor 41, allowing compressed air to enter the central shaft 42 from the outlet.

[0020] The central shaft 42 is hollow, and a plurality of first air holes 44 are provided on its outer surface. The first air holes 44 are inclined relative to the diameter direction of the central shaft 42, and the inclination direction of the first air holes 44 at the same height is the same clockwise or counterclockwise direction along the circumference. As a result, the compressed air ejected from the central shaft 42 is ejected in an inclined direction, and the high-speed compressed gas ejected from the plurality of first air holes 44 at the same time can drive the liquid to form a vortex and rotate at high speed.

[0021] The stirring blade 43 is mounted on the central shaft 42 and is S-shaped, with both its upper and lower ends connected to a rotating ring on the outer side of the central shaft 42. In this embodiment, three stirring blades 43 are provided, with the two ends of the first stirring blade 43 spanning a 120-degree angle on the horizontal plane of the central shaft 42. The cross-section of the stirring blade 43 is elliptical, with a hollow center, which communicates with the hollow pipe 31 of the central shaft 42. A second air hole 45 is provided on the side of the stirring blade 43, communicating with the hollow center, and all the second air holes 45 on the stirring blade 43 are located on the same side. The rotating ring is hollow, corresponding to the position of the stirring blade 43, and multiple first air holes 44 communicating with the rotating blade are provided at the position of the rotating ring on the central shaft 42.

[0022] During operation, the air compressor 41 supplies compressed air to the central shaft 42 and the stirring blades 43. The compressed air is ejected from the first air hole 44 and the second air hole 45. Since the second air hole 45 is located on the same side of the stirring blades 43, the rotating blades can be driven to rotate under the force of the compressed air. The first air hole 44 and the second air hole 45 are in different horizontal and vertical positions, so high-pressure air can emerge from multiple directions to stir the electroplating solution. Furthermore, the high-pressure gas ejected from the central shaft 42 will drive the surrounding electrolyte to form a vortex, accelerating the stirring of the electrolyte.

[0023] The electroplating solution in the electroplating tank 10 is discharged into the filter tank 20 through the first drain outlet 11 for filtration. The filtered electroplating solution is then pumped into the lower chamber 13 of the electroplating tank 10 by the pump 30 through the second drain outlet 21. During operation, the air compressor 41 in the lower chamber 13 generates a significant amount of heat, which is transferred from the air compressor 41 casing to the electroplating solution to heat it. The heated electroplating solution gradually rises through the connection hole 14 into the upper tank 12, where it is then stirred evenly by the stirring device 40. Understandably, if higher temperature requirements are needed and the heat recovery from the air compressor 41 alone is insufficient, a heating device can be additionally installed in the upper tank 12.

[0024] In summary, the electroplating apparatus of this invention, by incorporating a stirring device 40 to uniformly and effectively stir the electroplating solution, eliminates concentration polarization, increases current density, promotes mass transfer, and improves reaction speed and efficiency. By utilizing the heat from the air compressor 41 to heat the electroplating solution, heat recovery and utilization are achieved, and the air compressor 41 can also be cooled, achieving two benefits at once. This invention is highly practical and has significant potential for widespread application.

[0025] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-efficiency, low-energy-consumption electroplating apparatus, characterized in that: The system includes an electroplating tank, a filtration tank, and a liquid extraction device. The electroplating tank and the filtration tank are arranged adjacent to each other. One end of the liquid extraction device is connected to the filtration tank, and the other end is connected to the electroplating tank, so as to reuse the filtered electroplating solution back into the electroplating tank. The electroplating tank has a first drain outlet at the top of one side of the filtration tank, and a second drain outlet at the bottom of one side of the filtration tank. The electroplating solution is discharged from the first drain outlet to the filtration tank for filtration, and the filtered electroplating solution is discharged through the second drain outlet. The liquid extraction device includes a pump and a connecting pipe. The pump draws the filtered electroplating solution into the electroplating tank through the pipe. The electroplating tank includes an upper tank and a lower chamber, and a connecting hole is provided between the upper tank and the lower chamber. A stirring device is provided in the electroplating tank. The stirring device includes an air compressor, a central shaft, and stirring blades disposed on the outer surface of the central shaft. The central shaft is hollow, and a plurality of first air holes are provided on the outer surface of the central shaft. The stirring blades are disposed on the central shaft and are S-shaped, with both their upper and lower ends connected to the central shaft.

2. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The air compressor is provided with a protective shell on its outer surface, and a water inlet is provided on the side wall of the lower cavity. The pipe of the liquid pumping device is connected to the water inlet.

3. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The first air hole is inclined relative to the diameter direction of the central axis, and the inclination direction of the first air hole at the same height is the same clockwise or counterclockwise direction along the circumference.

4. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The stirring blades are provided in three parts, and the two ends of the three stirring blades span a 120-degree angle on the horizontal plane of the central axis.

5. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The cross-section of the stirring blade is elliptical, with a hollow center, and it is connected to the hollow pipe of the central shaft.

6. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The stirring blade has a second air hole on its side, and the second air hole is connected to the hollow hole.

7. The high-efficiency, low-energy-consumption electroplating apparatus as described in claim 1, characterized in that: The orientations of two adjacent second pores are different; one of the two adjacent second pores is tilted upwards, and the other is tilted downwards.

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