Electrolyte diverter for preparing low-profile copper foil

Abstract

The utility model relates to the technical field of electrolytic copper foil manufacturing, in particular to an electrolyte diverter for preparing low-profile copper foil, which comprises a rectangular diverting groove, a plurality of independent liquid injection ports are arranged at the bottom of the diverting groove, and a liquid outlet and a diversion channel are arranged at the top of the diverting groove. The interior of the flow dividing groove is divided into a plurality of flow dividing cavities through vertical partition plates. First turbulent flow holes distributed in an array mode are formed in the partition plate, inclined turbulent flow plates are arranged on the two sides of the partition plate of each flow dividing cavity, the top ends of the inclined turbulent flow plates extend in an inclined mode in the direction of the liquid outlet, and first turbulent flow holes distributed in an array mode are formed in the turbulent flow plates. Through the arrangement of the first turbulent flow holes in the partition plate, electrolyte can be further mixed in the adjacent flow dividing cavities, through the arrangement of the second turbulent flow holes in the turbulent flow plates, part of the electrolyte penetrates through the turbulent flow holes and is blocked and rebounded by the side walls of the flow dividing grooves, vortex mixing is formed, and finally the electrolyte flowing to the liquid outlet is mixed more evenly; the production efficiency of the electrolytic copper foil and the uniformity of the copper foil are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil manufacturing technology, and in particular to an electrolyte distributor for preparing low-profile copper foil. Background Technology

[0002] Electrolytic copper foil manufacturing is a precision process involving electrochemistry, fluid mechanics, and materials science. Its core lies in the controlled growth of ultrathin copper layers through electrolytic deposition. The process involves electrolytic generation of the foil in a specialized foil-forming machine. This machine comprises key components such as a cathode roller, an anode lead-silver alloy plate, an electrolytic cell, and a distributor located below the electrolytic cell. The electrolyte flows into the electrolytic cell cavity through the distributor. Under the influence of direct current, divalent copper ions in the copper sulfate electrolyte migrate to the cathode roller interface, where they undergo a reduction reaction to generate copper atoms, which then crystallize on the continuously rotating, smooth surface of the cathode roller.

[0003] like Figure 1 In the prior art shown, the electrolyte enters the distributor and, after rebounding through the cavity wall, forms a primary turbulent flow. It then flows through a vertically arranged guide channel to the electrolytic cell, achieving the electrodeposition of copper foil. The drawback of this structure is that the electrolyte mainly occurs within the separated small cavities, and turbulent mixing does not occur between these cavities. After only one turbulent flow, the electrolyte is sent directly to the electrolytic cell through the outlet, resulting in insufficient and uneven mixing, which affects the efficiency and uniformity of copper foil formation. Utility Model Content

[0004] The purpose of this invention is to provide an electrolyte distributor for preparing low-profile copper foil, which makes the electrolyte mix more evenly in the distributor, thereby improving the production efficiency and uniformity of electrolytic copper foil.

[0005] To solve the above-mentioned technical problems, the embodiments of this utility model provide a technical solution as follows:

[0006] An electrolyte distributor for preparing low-profile copper foil includes a rectangular distribution channel. The bottom of the distribution channel has several independent injection ports, and the top has an outlet and a flow guide channel communicating with the outlet. The distribution channel is divided into multiple distribution chambers by vertical partitions, and the bottom of each distribution chamber is connected to an injection port. The partitions have arrayed first turbulence holes, and each distribution chamber partition has an inclined turbulence plate on its adjacent sidewall. The bottom end of the turbulence plate is fixed to the bottom of the distribution channel, and the top end extends inclinedly towards the outlet. The turbulence plate has arrayed first turbulence holes. By setting the first turbulence hole in the baffle, the electrolyte in the distribution tank can be further mixed in the adjacent distribution chambers. By setting the inclined baffle plate and the second turbulence hole on the baffle plate, the electrolyte flowing towards the baffle plate is blocked and rebounded by the baffle plate to form a vortex, or the electrolyte passes through the turbulence hole and is blocked and rebounded by the side wall of the distribution tank, forming a vortex mixing again. This makes the electrolyte that finally flows to the outlet more uniformly mixed after multiple vortex mixing, thereby improving the production efficiency and uniformity of electrolytic copper foil.

[0007] Furthermore, a vortex fan is provided within the first and / or second turbulence holes. The vortex fan comprises at least two arc-shaped blades that can rotate freely around an axis. The curvature of the blades forms an angle of 15-75° with the electrolyte flow direction, and the blades can rotate under fluid impact. The rotation of the blades drives the electrolyte to form a vortex, further increasing the uniformity of electrolyte mixing.

[0008] Furthermore, the first and / or second turbulence holes are tapered holes.

[0009] Furthermore, a trumpet-shaped flow guide channel is provided at the center of the top of the diversion tank. The small-diameter end of the flow guide channel is connected to the liquid outlet, and the large-diameter end extends into the electrolytic cell cavity. With the trumpet-shaped flow guide channel, the electrolyte is spread out relatively gently to both sides through the flow guide channel, reducing the impact of the electrolyte on the cathode roller surface and improving the efficiency and uniformity of electrolytic copper foil generation.

[0010] Furthermore, the tilt angle of the spoiler is 30-60°, and the spoilers in the same flow divider chamber are distributed in an alternating symmetrical manner.

[0011] Furthermore, the inner wall of the flow channel is provided with spiral guide ribs, with a spiral helix angle of 20-40° and a pitch that gradually increases along the liquid flow direction. The spiral guide ribs help to increase the smoothness of the electrolyte flowing through the flow channel.

[0012] This invention provides an electrolyte distributor for preparing low-profile copper foil. Compared to existing technologies, the first turbulence hole in the partition plate allows the electrolyte in the distributor tank to be further mixed in adjacent distributor chambers. The inclined turbulence plate and the second turbulence hole on the turbulence plate cause some of the electrolyte flowing towards the turbulence plate to be blocked and bounced back, forming eddies. Some of the electrolyte passing through the turbulence hole is blocked and bounced back by the side wall of the distributor tank, forming eddies again. This results in the electrolyte flowing to the outlet undergoing multiple eddies, leading to more uniform mixing and improved production efficiency and uniformity of electrolytic copper foil. Furthermore, the eddy fan allows the electrolyte passing through the turbulence hole to drive the fan blades, which in turn create eddies, further increasing the uniformity of electrolyte mixing within the distributor and improving both the production efficiency and uniformity of the electrolytic copper foil. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0014] Figure 1 This is a schematic diagram of the structure of an electrolytic cell and a splitter in the prior art;

[0015] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the splitter in an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of the splitter in an embodiment of this utility model;

[0017] Figure 4 This is an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the vortex fan structure in an embodiment of this utility model;

[0019] Figure 6 This is a schematic diagram of the spoiler structure in an embodiment of this utility model;

[0020] Figure 7 This is a schematic diagram of the longitudinal cross-sectional structure of the splitter in different embodiments of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 10, diversion channel; 101, diversion chamber; 102, liquid outlet; 11, baffle; 111, first turbulence hole; 112, vortex fan; 1121, fan blade; 12, liquid inlet; 13, turbulence plate; 131, second turbulence hole; 14, sealing plate; 15, guide plate; 151, guide channel; 152, spiral guide rib. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0023] like Figure 2-3 As shown, one embodiment of this utility model relates to an electrolyte distributor for preparing low-profile copper foil, comprising a rectangular distribution channel 10, wherein the bottom of the distribution channel 10 is provided with a plurality of independent injection ports 12, and the top is provided with a sealing plate 14, wherein the sealing plate 14 is provided with an outlet 102 in the center communicating with the inner cavity of the distribution channel 10, and symmetrical guide plates 15 are provided in the center of the sealing plate 14, wherein the guide plates 15 form a guide channel 151 communicating with the outlet 102; the distribution channel 10 contains... The system is divided into multiple distribution chambers 101 by a vertical partition 11, with each distribution chamber 101 connected to a corresponding injection port 12 at its bottom. The partition 11 has an array of first turbulence-inducing holes 111. Each distribution chamber 101 has an inclined turbulence-inducing plate 13 on the adjacent sidewall of the partition 11. The bottom end of the turbulence-inducing plate 13 is fixed to the bottom of the distribution channel 10, and its top end extends inclinedly towards the outlet 102. The turbulence-inducing plate 13 has an array of first turbulence-inducing holes 111. Electrolyte is introduced from an external container into each distribution chamber 101 through the injection port 12. Part of the electrolyte is blocked and reflected by the partition 11 and then mixed; part of it enters the adjacent distribution chamber 101 through the first turbulence-inducing holes 111, forming turbulent mixing. During the upward movement of the electrolyte, part of it is blocked and reflected by the turbulence-inducing plate 13, forming eddy mixing; and part of it forms turbulent mixing after passing through the second turbulence-inducing holes 131. By setting the first turbulence hole 111 of the partition 11, the electrolyte in the diversion tank 10 can be further mixed in the adjacent diversion chambers 101. By setting the inclined turbulence plate 13 and the second turbulence hole 131 on the turbulence plate 13, part of the electrolyte flowing toward the turbulence plate 13 is blocked and rebounded by the turbulence plate 13 to form a vortex. Part of the electrolyte passes through the turbulence hole and is blocked and rebounded by the side wall of the diversion tank 10, forming a vortex mixing again. As a result, the electrolyte that finally flows to the outlet 102 undergoes multiple vortex mixing, and the mixing is more uniform, so as to improve the production efficiency and uniformity of the electrolytic copper foil.

[0024] like Figure 4-6As shown, one embodiment of this utility model relates to an electrolyte distributor for preparing low-profile copper foil. A vortex fan 112 is further provided within the first turbulence hole 111 on the partition plate 11. The vortex fan 112 includes at least two arc-shaped fan blades 1121 that can rotate freely around an axis. The curved surface of the fan blades 1121 forms an angle of 15-75° with the electrolyte flow direction. When the electrolyte flows from one distribution chamber 101 through the first turbulence hole 111 to another chamber, it impacts the fan blades 1121, causing them to rotate and thus forming a rotating water flow, accelerating the uniformity of electrolyte mixing. Preferably, a vortex fan 112 with the same structure is provided within the second turbulence hole 131 on the turbulence plate 13. Through the rotation of the fan blades 1121, the electrolyte passing through the turbulence hole forms a vortex under the drive of the fan blades 1121, further increasing the uniformity of electrolyte mixing. Preferably, the first turbulence hole 111 and / or the second turbulence hole 131 are tapered holes.

[0025] One embodiment relates to an electrolyte distributor for preparing low-profile copper foil. An outlet 102 and a flow channel 151 are located at the top center of the distribution tank 10. The flow channel 151 is funnel-shaped, with its smaller diameter end connected to the outlet 102 and its larger diameter end extending into the electrolytic cell cavity. The funnel-shaped flow channel 151 allows the electrolyte to spread relatively smoothly to both sides, reducing the impact of the electrolyte on the cathode roller surface and improving the efficiency and uniformity of electrolytic copper foil production. Preferably, the inner wall of the flow channel 151 is provided with spiral guide ribs 152, with a helix angle of 20-40° and a pitch that gradually increases along the liquid flow direction. The spiral guide ribs 152 help increase the smoothness of the electrolyte flowing through the flow channel 151.

[0026] like Figure 7 As shown, in one embodiment, an electrolyte distributor for preparing low-profile copper foil is disclosed. The tilt angle of the baffle plate 13 is 30-60°, and the baffle plates 13 in the same distribution chamber 101 are staggered and symmetrically distributed. By the cross-arranged baffle plates 13, the distribution path of the electrolyte is increased in the process of rising from the injection port 12 to the outlet port 102, which is beneficial to obtaining a more uniformly mixed electrolyte.

[0027] This invention provides an electrolyte distributor for preparing low-profile copper foil. Compared to existing technologies, the first turbulence hole in the partition plate allows the electrolyte in the distributor tank to be further mixed in adjacent distributor chambers. The inclined turbulence plate and the second turbulence hole on the turbulence plate cause some of the electrolyte flowing towards the turbulence plate to be blocked and bounced back, forming eddies. Some of the electrolyte passing through the turbulence hole is blocked and bounced back by the side wall of the distributor tank, forming eddies again. This results in the electrolyte flowing to the outlet undergoing multiple eddies, leading to more uniform mixing and improved production efficiency and uniformity of electrolytic copper foil. Furthermore, the eddy fan allows the electrolyte passing through the turbulence hole to drive the fan blades, which in turn create eddies, further increasing the uniformity of electrolyte mixing within the distributor and improving both the production efficiency and uniformity of the electrolytic copper foil.

[0028] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A flow divider for electrolyte used in the production of low profile copper foil, characterized by, The application relates to a rectangular flow distribution groove (10) provided with a plurality of independent liquid injection ports (12) at the bottom, a liquid outlet (102) at the top and a flow guide channel (151) in communication with the liquid outlet (102); the flow distribution groove (10) is divided into a plurality of flow distribution chambers (101) by vertical partitions (11), the bottom of each flow distribution chamber (101) is in communication with one liquid injection port (12); the partitions (11) are provided with an array of first turbulence holes (111), the adjacent side walls of the partitions (11) of each flow distribution chamber (101) are provided with inclined turbulence plates (13), the bottom end of the turbulence plates (13) is fixed to the bottom of the flow distribution groove (10), the top end of the turbulence plates (13) extends to the liquid outlet (102) in an inclined manner, and the turbulence plates (13) are provided with an array of first turbulence holes (111).

2. The electrolyte flow divider for the production of low-profile copper foils according to claim 1, characterized in that The first turbulence holes (111) and / or the second turbulence holes (131) are provided with vortex fans (112), the vortex fans (112) comprise at least two arc-shaped fan blades (1121) capable of rotating freely around an axis, the curved surface direction of the fan blades (1121) forms an angle of 15-75 DEG with the electrolyte flow direction, and the fan blades (1121) can rotate under the impact of fluid.

3. The electrolyte diverter for preparing a low-profile copper foil according to claim 1, wherein The first turbulence holes (111) and / or the second turbulence holes (131) are conical holes.

4. The electrolyte diverter for preparing a low-profile copper foil according to claim 1, wherein The top center of the flow distribution groove (10) is provided with a horn-shaped flow guide channel (151), the small-diameter end of the flow guide channel (151) is in communication with the liquid outlet (102), and the large-diameter end extends to the electrolytic tank cavity.

5. The electrolyte diverter for preparing a low-profile copper foil according to claim 1, wherein The inclination angle of the turbulence plates (13) is 30-60 DEG, and the turbulence plates (13) of the same flow distribution chamber (101) are distributed in a staggered and symmetrical manner.

6. The electrolyte diverter for preparing low-profile copper foil according to any one of claims 1 to 5, characterized in that, The inner wall of the flow guide channel (151) is provided with spiral flow guide ribs (152), the spiral angle is 20-40 DEG, and the pitch gradually increases along the liquid flow direction.

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