KR20220139209A - Assembly structure of an anode electrode for manufacture of electrolytic copper foil - Google Patents

Abstract

An objective of the present invention is to enable an electrodeposited copper foil manufacturing process to be performed by replacing only some components of an anode electrode without replacing the entire equipment of the anode electrode, even when the specifications of an electrodeposited copper foil are changed. According to an aspect of the present invention, provided is an anode electrode assembly for manufacturing an electrodeposited copper foil, which comprises: a first anode frame unit on which an insoluble metal electrode is installed on the front side; a second anode frame unit coupled to both ends of the first anode frame unit; and a third anode frame unit which is detachably coupled to the front side of the second anode frame unit and provides an installation area for an insoluble metal electrode extending in both left and right directions of the first anode frame unit.

Description

Anode electrode assembly for manufacturing an electrolytic copper foil {Assembly structure of an anode electrode for manufacture of electrolytic copper foil}

The present invention relates to an anode electrode assembly for manufacturing an electrodeposited copper foil, and more particularly, an anode electrode assembly for manufacturing an electrodeposited copper foil that enables the electrodeposited copper foil manufacturing process to be performed by replacing only some components without replacing the entire equipment of the anode electrode even when the specifications of the electrodeposited copper foil are changed. is about

In general, in electroplating, in a plating solution containing the ions of the metal to be plated, the ion of the metal to be plated is reduced and deposited on the surface of the plated object by using the plated object as the cathode and the underlying metal or insoluble metal electrode as the anode. It is a plating method in which a copper foil obtained through electroplating is typically manufactured from a very thin copper sheet and is widely used in electrical and electronic products such as batteries and printed circuit boards, so methods for quality improvement and mass production of copper foil have been developed is becoming

For copper plating, an electroplating apparatus capable of electrodeposition is used for copper foil. In a plating apparatus for manufacturing copper foil, a continuously rotating drum is usually coupled to a sulfuric acid plating bath, and an anode forming an anode is provided in the sulfuric acid plating bath. Electrolyte is filled between the anode and the drum in a state wrapped around the bottom at an arbitrary interval, the anode forms an insoluble anode, and the drum as a cathode starts electroplating according to the application of electricity so that copper foil is electrodeposited on the surface of the drum do.

The electrolytic copper foil manufacturing apparatus continuously produces copper on the surface of the negative electrode roller while current flows between a large negative electrode roller as a negative electrode, the lower portion of which is immersed in a copper electrolyte solution contained in an electrolytic cell, and an insoluble positive electrode as a counter electrode. Electrolyte is supplied through the electrolyte supply slit of the anode for plating, and the deposited copper is continuously removed from the surface of the cathode roller.

1 is a longitudinal sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art, and FIG. 2 is a cross-sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art.

As shown in FIGS. 1 and 2 , the apparatus for manufacturing an electrolytic thin plate includes an electrolytic cell 1 to which an electrolyte 2 is continuously supplied, and a cathode rotating with a part submerged in the electrolyte 2 of the electrolytic cell 1 . It includes a drum (4) and an anode electrode (3) arranged along the shape of the negative drum (4). For example, the electrolyte solution 2 is a solution of sulfuric acid, copper sulfate, iron hydrochloride, nickel hydrochloride, etc. containing copper ions and chlorine ions, and has strong acid properties.

The electrolyte (2) is supplied and circulated at a relatively high speed in the electrolytic cell (1) in order to prevent a deficiency of molten metal ions in the vicinity of the cathode drum (4). In addition, the surface material of the negative electrode drum (4) is composed of titanium, which maintains acid resistance to the electrolyte (2) and facilitates the peeling of the thin metal plate (5).

In this configuration, when a high-density current is applied between the negatively charged anode drum 4 and the positively charged anode 3 using the electrolyte 2 as a medium, the positive ions contained in the electrolyte 2 The metal in a molten state is fused to the cathode drum, and thus solidifies and precipitates as a solid.

The deposited molten metal is spun into an electrodeposited copper foil 5 in the form of a metal thin plate along the surface of the rotating cathode drum 4, and the sintered electrodeposited copper foil 5 is guided by guide rollers 6 to receive a bobbin (7). will be caught in

On the other hand, an example of the anode electrode immersed in the electrolyte corresponding to the cathode drum is disclosed in Japanese Patent Laid-Open No. 1993-202498, which will be described in detail with reference to FIG. 3 as follows. 3 is a perspective view showing the structure of the anode electrode of the prior art, in which the conventional anode electrode 3 is a thin plate-shaped insoluble metal electrode 33 on one side of the metal base 32, that is, the side facing the cathode drum, screwed ( 34) has a structure bound by The metal electrode 33 is divided into standardized sizes, and each is continuously coupled and detachably coupled to the metal base 32 by a screw 34 .

A manufacturing apparatus for producing such an electrodeposited copper foil must use an anode electrode suitable for the width of the cathode drum. Therefore, when there is a change in the size of the electrodeposited copper foil, the anode drum and the anode electrode must be replaced together according to the changed size.

In particular, in the case of the anode electrode, as a structure installed in the electrolytic cell, there are many difficulties in replacing the entire facility, and the replacement operation takes a lot of time. There was a problem of having a burden of cost along with the burden that follows.

Republic of Korea Patent No. 10-2254554

The present invention has been devised to solve the problems of the prior art, and it is an object of the present invention to perform the electrodeposited copper foil manufacturing process by replacing only some components without replacing the entire equipment of the anode electrode even when the specifications of the electrodeposited copper foil are changed.

According to one aspect of the present invention, a first anode frame portion having an insoluble metal electrode installed on the front surface, a second anode frame portion coupled to both ends of the first anode frame portion, and detachable from the front surface of the second anode frame portion An anode electrode assembly for manufacturing an electrodeposited copper foil including a third anode frame portion that is coupled to provide an installation area of an insoluble metal electrode extending in both left and right directions of the first anode frame portion may be provided.

In addition, the first anode frame part forms a first curved part facing the cathode drum, and forms a first vertical end coupled to the electrolytic cell side at the upper end of the curved part, and at the lower end, an opposing point of the left and right half structure A first horizontal end portion may be formed, and the first horizontal end portion may be bent in an outward direction of the first curved portion to form a locking step.

In this case, the bent corner inside the first curved portion may be formed as a chamfered surface.

In addition, the second anode frame portion forms a second curved portion coupled to overlap the rear side of the first anode frame portion by a predetermined width, and forms a second vertical end portion coupled to the electrolytic cell side at the upper end portion of the second curved portion, , The lower end forms a second horizontal end forming an opposing point of the left and right half-body structures, and the second horizontal end forms a locking groove in contact with the rear and side surfaces of the locking jaws of the first anode frame part in a "B" shape, the It is possible to provide a multi-stage structure for forming a horizontal extension portion extending in the horizontal direction of the front surface of the locking jaw, and forming a gap maintaining portion protruding in a "B" shape from the end of the horizontal extension portion.

And, the third anode frame portion is detachably coupled to the front surface of the second anode frame portion to provide an insoluble metal electrode installation area extended in both left and right directions of the first anode frame portion, but to form a third curved portion facing the cathode drum and a third vertical end coupled to the electrolytic cell is formed at the upper end of the third curved portion, and a third horizontal end forming an opposing point of the left and right half-body structures is formed at the lower end, and the third horizontal end is chamfered can be formed with

According to the present invention, the electrodeposited copper foil manufacturing process can be performed by replacing only some components without replacing the entire equipment of the anode electrode even when the specifications of the electrodeposited copper foil are changed.

In addition, since the present invention does not need to have the anode electrode according to the standard, it is convenient and economical to maintain and manage the anode.

1 is a longitudinal cross-sectional view of a prior art electrodeposited copper foil manufacturing apparatus.
Figure 2 is a cross-sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art.
Figure 3 is a perspective view showing the structure of the anode electrode of the prior art.
4 is a perspective view of an anode electrode assembly for manufacturing an electrodeposited copper foil according to the present invention.
5 is an exploded perspective view of an anode electrode assembly for manufacturing an electrodeposited copper foil according to the present invention;
6 is an enlarged cross-sectional view showing an insoluble metal electrode coupling structure of the anode electrode assembly according to the present invention.
Figure 7 is an enlarged view of the main part of Figure 5;
8 is an exemplary installation view of the anode electrode assembly according to the present invention.
9 is an enlarged view of the main part of FIG.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed herein are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiment according to the concept of the present invention These may be embodied in various forms and are not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention may have various changes and may have various forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, a first component may be named as a second component, Similarly, the second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Expressions describing the relationship between elements, for example, “between” and “between” or “directly adjacent to”, etc. should be interpreted similarly.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, and includes one or more other features or numbers, It should be understood that the possibility of the presence or addition of steps, operations, components, parts or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference numerals in each figure indicate like elements.

4 is a perspective view of an anode electrode assembly for manufacturing an electrodeposited copper foil according to the present invention, FIG. 5 is an exploded perspective view of an anode electrode assembly for manufacturing an electrodeposited copper foil according to the present invention, and FIG. 6 is an insoluble metal electrode coupling structure of the anode electrode assembly according to the present invention It is an enlarged cross-sectional view shown, and FIG. 7 is an enlarged view of the main part of FIG. 5 .

4 and 5 , the anode electrode assembly 100 according to an embodiment of the present invention includes a first anode frame unit 110 and a second anode frame unit 110 coupled to both ends of the first anode frame unit 110 . A third anode that is detachably coupled to the front surface of the anode frame unit 120 and the second anode frame unit 120 to provide an insoluble metal electrode installation area extended in both left and right directions of the first anode frame unit 110 . It includes a frame portion 130 .

At this time, as shown in FIG. 6 , a thin-plate insoluble metal electrode 150 may be coupled to the front surface of the first anode frame unit 110 and the third anode frame unit 130 .

Such an insoluble metal electrode may be coupled by the first anode frame unit 110 and the third anode frame unit 130 using a fastening means (SC) such as a screw, and the first anode frame unit 110 and the first anode frame unit 110 Fastening holes (H) for screw coupling may be formed on the surface of the 3 anode frame part 130 .

4 and 5 are views showing the insoluble metal electrode, screws, and screw holes in a state where illustration is omitted.

First, the first anode frame part 110 is described. The first anode frame part 110 provides a first curved part 111 facing the cathode drum (refer to FIG. 1).

The anode electrode assembly 100 according to the present invention is installed in the electrolytic cell in the form of left and right halves to form a structure facing the lower surface of the cathode drum, and the first anode frame part 110 is a quarter section of the lower surface of the cathode drum. installed to cover

As such, the first anode frame portion 110 forms a first vertical end portion 112 coupled to the electrolytic cell side at the upper end portion of the first curved portion 111, and forms an opposing point of the left and right half-body structure at the lower end portion A first horizontal end 113 is formed.

At this time, the first horizontal end portion 113 is bent in the outward direction of the first curved portion 111 to form the engaging projection 114 . At this time, the locking jaw 114 allows the end of the second anode frame part 120 to be fixed without being caught and flowing down when the second anode frame part 120 is coupled.

At this time, in the present invention, the bent corner inside the first curved portion 111 is formed as the first chamfered surface 115 . As shown in FIGS. 8 and 9, the first chamfered surface 115 has a structure that minimizes the resistance of the fluid so that the electrolyte introduced from the direction orthogonal to the outer surface of the anode electrode is quickly supplied to the space separated from the cathode drum. will provide

As a function of smoothing the flow in this way, it may be formed in the form of a round surface having a similar action and effect as the first chamfered surface 115 .

In addition, the second anode frame unit 120 is coupled to both ends of the first anode frame unit 110 .

Hereinafter, the second anode frame unit 120 will be described.

The second anode frame portion 120 forms a second curved portion 121 coupled to overlap the rear side of the first anode frame portion 110 by a predetermined width.

Such a second anode frame portion 120 forms a second vertical end portion 122 coupled to the electrolytic cell side at the upper end portion of the second curved portion 121, and forms an opposing point of the left and right half body structure at the lower end portion A second horizontal end 123 is formed.

At this time, the second horizontal end portion 123 forms a locking groove 124 in contact with the rear and side surfaces of the locking jaw 114 of the first anode frame part in a "L" shape, and the horizontal direction of the front surface of the locking jaw 114 is formed. A multi-stage structure is provided to form a horizontal extension portion 125 extending to the ?, and to form a gap maintaining portion 126 protruding in a "B" shape from the end of the horizontal extension portion 125 .

The third anode frame part 130 is detachably coupled to the front surface of the second anode frame part 120 .

Hereinafter, the third anode frame unit 130 will be described.

The third anode frame unit 130 provides an insoluble metal electrode installation area extended in both left and right directions of the first anode frame unit 110 .

At this time, as shown in FIG. 6 , a thin insoluble metal electrode 150 may be coupled to the front surface of the third anode frame unit 130 .

The third anode frame part 130 provides a third curved part 131 facing the cathode drum (refer to FIG. 1).

The anode electrode assembly 100 according to the present invention is installed in the electrolytic cell in the form of left and right halves to form a structure facing the lower surface of the anode drum, and the third anode frame part 130 has a 1/4 section of the lower surface of the cathode drum. It is installed to expand and enclose.

As such, the third anode frame portion 130 forms a third vertical end portion 132 coupled to the electrolytic cell side at the upper end portion of the third curved portion 131, and forms an opposing point of the left and right half body structure at the lower end portion A third horizontal end portion 133 is formed.

At this time, the third horizontal end 133 is formed as a third chamfered surface 135 . As shown in Figs. 8 and 9, the third chamfered surface 135 has a structure that minimizes the resistance of the fluid so that the electrolyte introduced from the direction orthogonal to the outer surface of the anode electrode is quickly supplied to the space separated from the cathode drum. will provide

As a function of smoothing the flow as described above, it may also be formed in the form of a round surface having a similar action and effect to that of the third chamfered surface 135 .

The width of the third anode frame portion 130 as described above may be formed within the width of the horizontal extension portion 125 of the second anode frame portion 120 .

For example, the present invention provides a structure capable of adjusting the lateral width of the first anode frame portion 110 by detachably coupling the third anode frame portion 130 . This is to enable adjustment to enlarge or reduce the area of the insoluble metal electrode.

Therefore, according to the present invention, even when the standard of the electrodeposited copper foil is changed, the electrodeposited copper foil manufacturing process is continuously performed by selectively replacing only a part of the configuration, that is, the third anode frame part 130 that meets the standard, without replacing the entire equipment of the anode electrode. make it possible

This is because the replacement operation of the production line is quickly performed, so that efficient production management is possible, and instead of having the entire anode electrode according to the standard, only the third anode frame part 130 is equipped by the standard, so it is convenient and economical to maintain and manage it. .

The third anode frame unit 130 is made of the same material and curved surface as the first anode frame unit 110 .

In addition, a fixing bracket 140 is coupled to the first vertical end 112 of the first anode frame part 110 .

The fixing bracket 140 forms a first coupling part 141 mechanically coupled to one side of the first anode frame part 110 side, and the other side is mechanically coupled to the electrolytic cell (see FIG. 1) side. A second coupling portion 142 is formed.

At this time, the second coupling part 142 coupled to the electrolytic cell side is spaced apart between the coupling parts to form a slit groove 143 . The slit groove 143 may serve to allow the electrolyte that has been pumped up and moved to the top of the electrolytic cell by the rotation of the negative drum to be collected by falling down the electrolytic cell again without accumulating on the fixing bracket.

8 is an exemplary installation view of the anode electrode assembly according to the present invention, and FIG. 9 is an enlarged view of the main part of FIG. 8 .

Referring to FIGS. 8 and 9 , as an exemplary view in which the anode electrode assembly 100 according to the present invention is assembled in the form of a left and right half body, the gap maintaining parts 126 of the second anode frame part are in contact with each other to form a slit hole (SH) will provide

At this time, the slit hole is to allow the electrolyte in the electrolytic cell to quickly penetrate between the anode drum and the anode electrode.

Although the embodiments have been described with reference to the limited drawings as described above, various modifications and variations are possible by those skilled in the art from the above description. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: anode electrode assembly 110: first anode frame part
111: first curved portion 112: first vertical end
113: first horizontal end 114: jamming jaw
115: first chamfered surface 120: second anode frame portion
121: second curved portion 122: second vertical end
123: second horizontal end 124: locking groove
125: horizontal extension part 126: gap maintaining part
130: third anode frame portion 131: third curved portion
132: third vertical end 133: third horizontal end
135: third chamfered surface 140: fixing bracket
141: first coupling part 142: second coupling part
143: slit groove 150: insoluble metal electrode
SC: Fastening means SH: Slit hole
H: fastening hole

Claims (5)

A first anode frame portion in which an insoluble metal electrode is installed on the front surface, a second anode frame portion coupled to both ends of the first anode frame portion, and a first anode frame portion detachably coupled to the front surface of the second anode frame portion An anode electrode assembly for manufacturing an electrodeposited copper foil comprising a third anode frame portion providing an installation area of an insoluble metal electrode extending in both left and right directions.
The method of claim 1,
The first anode frame portion forms a first curved portion facing the cathode drum, a first vertical end coupled to the electrolytic cell side is formed at the upper end of the curved portion, and the lower end forms an opposing point of the left and right half-body structures An anode electrode assembly for manufacturing an electrodeposited copper foil, which forms a first horizontal end and bends the first horizontal end in an outward direction of the first curved portion to form a locking protrusion.
3. The method of claim 2,
An anode electrode assembly for manufacturing an electrodeposited copper foil in which a bent corner inside the first curved portion is formed as a chamfered surface.
The method of claim 1,
The second anode frame portion forms a second curved portion coupled to overlap the rear side of the first anode frame portion by a predetermined width, and forms a second vertical end portion coupled to the electrolytic cell side at the upper end portion of the second curved portion, the lower side A second horizontal end portion is formed at the end to form an opposing point of the left and right half-body structures, and a locking groove is formed in the second horizontal end portion to be in contact with the rear and side surfaces of the first anode frame portion of the locking jaw in a “B” shape, and the locking jaw An anode electrode assembly for manufacturing an electrodeposited copper foil, which provides a multi-stage structure for forming a horizontal extension extending in the horizontal direction of the front surface and forming a gap maintaining portion protruding in a "B" shape from the end of the horizontal extension.
The method of claim 1,
The third anode frame portion is detachably coupled to the front surface of the second anode frame portion to provide an insoluble metal electrode installation area extended in both left and right directions of the first anode frame portion, forming a third curved portion facing the negative electrode drum, A third vertical end coupled to the electrolytic cell is formed at the upper end of the third curved portion, and a third horizontal end forming an opposing point of the left and right half-body structures is formed at the lower end, and the third horizontal end is formed as a chamfered surface. An anode electrode assembly for manufacturing an electrodeposited copper foil.

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