JP2009152514A - Electronic component and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow protection paper to be stuck to and interposed between isolation paper coming into contact with, preferably, both side faces of tabular parts of lead terminals without increasing the thickness (diameter) of an entire roll of an electronic component so much due to the protection paper neither increasing electric characteristics, in particular, an equivalent series resistance (ESR) of the electronic component and to both side faces of tabular parts of lead terminals to be protected by a necessary minimum width (length in a rolling-up direction) of the protection paper, when sticking the protection paper to the isolation paper coming into contact with tabular parts of lead terminals in order to enhance the electric insulation performance between a plurality of electrode foils. <P>SOLUTION: Immediately before a required portion to which protection paper 6 (6A and 6B) should be stuck is rolled up, the protection paper 6 (6A and 6B) is supplied from a direction rectangular to a feed direction of isolation paper 5 (5A and 5B) and electrode foils 4 (4P and 4M), and the protection paper 6 (6A and 6B) having a narrow width somewhat wider than the width of tabular parts 3b of lead terminals 3 (3P and 3M) is mainly stuck. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Detailed Description of the Invention

  The present invention relates to an electronic component and a method of manufacturing the same, and more particularly to an electronic component such as an electrolytic capacitor that winds a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separators interposed therebetween. In order to improve the electrical insulation performance between a plurality of electrode foils, the protective paper is used to wind up the electronic component when the protective paper is applied to the separator paper in contact with the flat plate portion of the lead terminal. Without increasing the overall thickness (diameter) and without increasing the electrical characteristics of the electronic component, in particular, the equivalent series resistance (ESR) (Equivalent Series Resistance), the protective paper is coated on both sides of the flat portion of the lead terminal as much as possible. The feeding direction of the separator paper and electrode foil immediately before winding up the necessary part where the protective paper is stuck so that it can be stuck on the separator paper in contact with the side. Protective paper is supplied from a direction perpendicular to the plate, and a protective paper with a narrow width that is slightly wider than the width of the flat part of the lead terminal is mainly applied. The minimum width of protective paper (winding direction) The present invention relates to an epoch-making electronic component and a method for manufacturing the same, which can protect both side surfaces of a flat plate portion of a lead terminal.

  Conventionally, as an example of an electronic component, an electrolytic capacitor is formed by winding a plurality of, for example, two electrode foils each having a flat plate portion of positive and negative lead terminals fixed thereto, while interposing a plurality of, for example, two sheets of separator paper therebetween. In order to improve the electrical insulation performance between the plurality of electrode foils, it has a completed element, and is manufactured by attaching a protective paper to a separating paper that contacts at least one side of the flat portion of the lead terminal.

Here, as a matter of course, it is desirable that the electrolytic capacitor has a smaller ESR (equivalent series resistance) as its electrical characteristics, and this ESR is mainly caused by the resistance of the driving electrolyte portion. . In order to reduce the resistance of the electrolytic solution portion, the separator paper holding the electrolytic solution is as thin as possible without worrying about a short circuit, has a low density, and can hold a sufficient amount of the driving electrolytic solution. It is desirable to use a sheet, and recently, a separator having a considerably thin thickness and good performance has been put into practical use.

In addition, the shape and distribution of the fibers forming the separating paper also have an influence on the series resistance in relation to the passage distance and moving speed of the electrolytic solution, so care must be taken in selecting it.
Next, in order to improve the electrical insulation performance between the flat plate parts of the positive and negative lead terminals fixed to the electrode foil wound together with the separator paper, the important thing is to attach it to the separator paper in contact with one surface of the flat part of the lead terminal. The thickness of the protective paper and the length in the winding direction (the width of the protective paper). While having a sufficient protective function, how small the length in the winding direction determines the size of the ESR. It becomes a factor.
However, the length of the conventional protective paper in the winding direction (width of the protective paper) is long, and the protective paper is supplied to the separating paper at a very early stage of winding the electrode foil and the separating paper. Affixing and winding was performed.

For example, as shown in FIG. 27, when winding the element 2 of the electrolytic capacitor 1 which is an example of an electronic component, the flat plate portion of the tab 3a of the positive / negative lead terminal 3 (positive lead terminal 3P, negative lead terminal 3M). The element winding device includes a positive and negative electrode foil 4 (positive electrode foil 4P, negative electrode foil 4M) fixed to each other by means of a wedge 3b and a separator paper 5 (5A, 5B) therebetween. (Not shown), the element 2 is rotated in the counterclockwise direction in the drawing, and the protective paper 6 is wound around the length in the winding direction of the flat plate portion 3b of the tab 3a of the lead terminal 3 (flat plate portion). The surface of the lead terminal 3P when the protective paper 6 having a length 10 to 11 times longer than the width 3b is determined at a very early stage of winding by the winding device and is wound up. The side and the other side of the lead terminal 3M That had been affixed to isolate paper 5A so as to extend over portions.
However, even if the long protective paper 6 is pasted in this way, the protection of both the flat plate portions 3b of the lead terminal 3 can be performed only on one side.
Moreover, since such a long protective paper 6 is used, the thickness (diameter) of the element 2 of the electrolytic capacitor 1 is increased by the protective paper 6 while protecting only the one surface side of the flat plate portion 3b of the lead terminal 3. In addition, there is a drawback in that the electrical characteristics, particularly ESR, of the electrolytic capacitor 1 is increased.

Further, if both side surfaces of the flat plate portion 3b of both lead terminals 3 are protected by the protective paper 6, the protective paper 6A having a winding direction length of about 26 times the width of the flat plate portion 3b and a winding direction of about 10 times. Since the protective paper 6B having a length has to be attached to the separating paper 5A and 5B, respectively, the total winding length of the protective paper 6 is actually 36 times as long as the flat plate portion 3b. The disadvantage that the electrolytic capacitor 1 is greatly increased in size and weight is brought about by increasing the thickness (diameter) of the element 2 of the electrolytic capacitor 1, and the electrical characteristics, particularly ESR, of the electrolytic capacitor 1 are simply calculated. However, there is a drawback that it is about 3.6 times larger than the case of protecting one surface side of the flat plate portion 3b of the lead terminal 3 (FIG. 27).

As described above, since the protective paper 6 has been pasted and wound up at the early stage of the separation paper 5 where the protective paper is required, the protective paper 6 having a long winding direction as described above is used. And the above-mentioned drawbacks could not be removed.

In addition, since this inventor and an applicant do not know the patent document and nonpatent literature regarding this invention, the description is abbreviate | omitted.

  The present invention has been made in order to eliminate the above-described drawbacks of the prior art. The object of the present invention is to provide a plurality of electrode foils each having a flat portion of a lead terminal fixed thereto and a plurality of separating papers therebetween. A device that has a completed element wound up while interposing it, and affixing protective paper to the separator paper that contacts at least one side of the flat part of the lead terminal in order to improve the electrical insulation performance between the plurality of electrode foils In the electronic component, the separation paper that is in contact with the flat plate portion of the lead terminal is protected so that one surface side of the flat plate portion of the plurality of lead terminals is protected by a narrow protective paper that is slightly wider than the flat plate portion of the lead terminal. By attaching at least two sheets of protective paper at least one by one, a total of about 75% of the protective paper can be saved when the insulation performance of the lead terminals is the same as the conventional one. To do , And the addition with a result to be significantly reduced ESR of the electronic component while having sufficient electrical insulation performance, is to achieve light weight of electronic components, downsizing.

Another object of the present invention is to protect the one surface side and the other surface side of the flat plate portions of the plurality of lead terminals with a protective paper having a narrow width that is slightly wider than the width of the flat plate portion of the lead terminals. Insulation only on one side of the flat plate portion of the tab of the conventional lead terminal by interposing at least four sheets of protective paper of at least two pieces on each of the separator papers in contact with both sides of the flat portion of the lead terminal. The objective is to save about 20% of the amount of protective paper used while obtaining twice the insulation performance compared to protection. In addition, ESR of electronic parts has been achieved while maintaining sufficient electrical insulation performance. It is possible to reduce the electrical protection compared to the insulation protection only on one surface side, and to achieve a reduction in weight and size of electronic components. Compared to the conventional protection of both sides of the flat plate portion of the positive and negative lead terminals, the amount of protective paper used can be reduced by 88%, and this greatly reduces the size of electronic components. It is to achieve weight reduction.

Another object is to protect one surface of the flat plate portion of one of the plurality of lead terminals with a protective paper having a narrow width that is slightly wider than the width of the flat plate portion of the lead terminal. At least one narrow protective paper is attached to the separator paper in contact with the flat plate portion of the lead terminal, and the other side of the flat portion of the lead terminal and the one side of the flat portion of the other lead terminal are 1 In order to protect with one sheet of protective paper, by attaching at least one wide protective paper across the part of the separating paper where the flat plate portions of both lead terminals are in contact with each other, Although double insulation performance can be obtained, and the other one lead terminal can achieve the same insulation performance as the conventional one, the amount of protective paper used can be increased to 20% of the conventional one. And inside It is to improve the efficiency of the electronic component manufacturing of insulation performance.

Still another object of the present invention is to contact the flat part of the lead terminal so that one surface of the flat part of each of the lead terminals is protected by a protective paper having a width slightly wider than the width of the lead terminal. A total of at least two sheets of narrow protective paper are attached to the separating paper, and the other surface side of the flat portion of the lead terminal and the one surface side of the flat portion of the other lead terminal are protected by a single protective paper. By attaching at least one wide protective paper across the part of the separator paper where the flat plate portions of both lead terminals are in contact with each other, it is possible to obtain twice the insulation performance of both positive and negative lead terminals as compared with the conventional case. Nevertheless, the amount of protective paper used can be reduced by 61% compared to conventional electronic components with similar insulation performance, and while using high insulation performance, the amount of protective paper used is small, compact, Lightweight electronic It is to be able to provide goods.

Another object of the present invention is to reduce the amount of adhesive used while protecting the protective paper while maintaining a sufficient adhesive force by providing the adhesive with a part of the protective paper. This is to suppress the increase in ESR due to use and to reduce the weight of electronic components.

Another object of the present invention is that the shape of the adhesive application surface of the protective paper application surface is a linear shape in the center in the width direction continuous in the protective paper feed direction, and intermittent in the protective paper feed direction. Slanted staircase, staircase intermittently perpendicular to the protective paper feed direction, two straight lines on both sides in the width direction continuous to the protective paper feed direction, intermittent diagonal line in the protective paper feed direction By using either a grid pattern or a scattered dot pattern that is intermittently arranged in the protective paper feed direction, the amount of adhesive used can be reduced while securing sufficient adhesive force, and the use of protective paper. This is to suppress the increase in ESR caused by the above and to reduce the weight of electronic components.

Another object of the present invention is to wind up a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separating papers interposed therebetween to improve electrical insulation performance between the plurality of electrode foils. In the manufacturing method of the electronic component in which the protective paper is applied to the separator paper that contacts at least one side of the flat plate portion of the terminal, immediately before winding the required location of the protective paper from the direction perpendicular to the feeding direction of the electrode foil and the separator paper, Supply a narrow protective paper that is slightly wider than the width of the flat part of the lead terminal, and wind it up while applying the narrow protective paper to the separator paper that contacts at least one side of the flat part of the lead terminal. By sticking at least two protective papers, each of which is in contact with one side of the flat plate part of the terminal, a total of at least two narrow protective papers, the ESR can be applied while the protective paper application position accuracy is high and the insulation performance is excellent. small Ku is to be able to provide efficient and extremely high precision electronic parts compact and lightweight.

  In short, the present invention (Claim 1) has an element completed by winding a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separators interposed therebetween, and the plurality of electrode foils. In order to improve the electrical insulation performance between the lead terminals, the electronic parts formed by attaching protective paper to the separator paper that contacts at least one side of the flat part of the lead terminals are slightly wider than the flat part of the lead terminals. At least two pieces of the narrow width in total, at least one sheet of the separating paper contacting the flat plate portions of the lead terminals so as to protect one surface side of the flat plate portions of the plurality of lead terminals, respectively, with a protective paper having a narrow width of about The protective paper is affixed and interposed.

Further, the present invention (Claim 2) has an element completed by winding a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separating paper interposed therebetween, and the plurality of electrode foils In order to improve the electrical insulation performance between the lead terminals, the electronic parts formed by attaching protective paper to the separator paper that contacts at least one side of the flat part of the lead terminals are slightly wider than the flat part of the lead terminals. At least two sheets each of the separating paper contacting the both sides of the flat plate portion of the lead terminal so as to protect the one surface side and the other surface side of the flat plate portion of the plurality of lead terminals respectively with a protective paper having a narrow width of at least A total of four sheets of the narrow protective paper are pasted and interposed.

Further, the present invention (Claim 3) has an element completed by winding a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separating papers interposed therebetween, and the plurality of electrode foils In order to improve the electrical insulation performance between the lead terminals, the electronic parts formed by attaching protective paper to the separator paper that contacts at least one side of the flat part of the lead terminals are slightly wider than the flat part of the lead terminals. At least one of the narrow sheets on the separator paper in contact with the flat plate portion of the lead terminal so as to protect one surface side of the flat plate portion of one of the plurality of lead terminals with a protective paper having a narrow width of about The flat plate portions of the lead terminals are respectively attached so that the other surface side of the flat plate portion of the lead terminal and the one surface side of the flat portion of the other lead terminal are protected by a single protective paper. The part of the separating paper that touches Is characterized in that is attached interposed at least one wide protective paper wants.

Further, the present invention (Claim 4) has an element completed by winding a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separators interposed therebetween, and the plurality of electrode foils. In order to improve the electrical insulation performance between the lead terminals, in the electronic component formed by attaching a protective paper to the separator paper contacting at least one side of the flat plate portion of the lead terminals, the width is narrower than the width of the lead terminals. At least two sheets of the narrow protective paper are pasted and interposed on the separator paper in contact with the flat plate portions of the lead terminals so as to protect one surface side of the flat plate portions of the plurality of lead terminals with the protective paper of width. The other side of the flat part of the lead terminal and the other side of the flat part of the other lead terminal are protected by a single protective paper so as to straddle the part of the separating paper that the flat parts of the lead terminals are in contact with each other. At least one It is characterized in that the protective sheet width was stuck interposed.

In the present invention (Claim 5), the protective paper is characterized in that an adhesive is applied to the pasting surface entirely or partially.

Further, according to the present invention (invention 6), the shape of the partial adhesive application surface of the protective paper application surface is a linear shape in the center in the width direction continuous in the protective paper feed direction, and the protective paper feed Intermittent diagonal staircase in the direction, stepwise perpendicular to the protective paper feed direction, two straight lines on both sides in the width direction continuous in the protective paper feed direction, protective paper feed direction It is characterized in that it has either a grid pattern with intermittent diagonal lines or a dotted pattern with regular arrangement intermittently in the feeding direction of the protective paper.

According to the present invention (invention 7), a plurality of electrode foils to which the flat portions of the lead terminals are respectively fixed are wound up with a plurality of separating papers interposed therebetween, and the electrical insulation performance between the plurality of electrode foils is increased. In the manufacturing method of an electronic component in which a protective paper is attached to the separator paper that contacts at least one side of the flat portion of the lead terminal in order to improve the protective paper from the direction perpendicular to the feeding direction of the electrode foil and the separator paper Immediately before winding the necessary portion of the sheet, a protective paper having a width slightly wider than the width of the flat plate portion of the lead terminal is supplied, and the narrowing paper is applied to the separator paper in contact with at least one side of the flat plate portion of the lead terminal. Winding up while applying protective paper of width, and attaching a total of at least two of the narrow protective paper to each of the separating papers in contact with one side of the flat plate portion of the plurality of lead terminals. Characteristic It is intended to.

According to the present invention (invention 8), a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed are wound up with a plurality of separating papers interposed therebetween, and the electrical insulation performance between the plurality of electrode foils is increased. In the manufacturing method of an electronic component in which a protective paper is attached to the separator paper that contacts at least one side of the flat portion of the lead terminal in order to improve the protective paper from the direction perpendicular to the feeding direction of the electrode foil and the separator paper Immediately before winding up the necessary part of the lead terminal, the protective paper having a width slightly narrower than the width of the flat part of the lead terminal is supplied at different timings, and the protection is in contact with both sides of the flat part of the lead terminal. Winding while applying the narrow protective paper on the paper, and affixing a total of four narrow protective papers, two each on the protective paper in contact with both sides of the flat plate portions of the plurality of lead terminals. It is characterized by Than is.

Further, the present invention (invention 9) winds up a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto with a plurality of separating papers interposed therebetween, and provides an electrical insulation performance between the plurality of electrode foils. In the manufacturing method of an electronic component in which a protective paper is attached to the separator paper that contacts at least one side of the flat portion of the lead terminal in order to improve the protective paper from the direction perpendicular to the feeding direction of the electrode foil and the separator paper Immediately before winding up the necessary part of the sheet, the protective paper having a width slightly wider than the width of the flat portion of the lead terminal and the other side of the flat portion of the lead terminal and the one side of the flat portion of the other lead terminal A wide protective paper that can be protected by a single protective paper is supplied at different timings, and the narrow protective paper and the wide protective paper are affixed to the protective paper in contact with both sides of the flat plate portion of the lead terminal. Winding while Two respective narrow on both sides of the protective sheet in contact with the flat portion of the plurality of lead terminals, one wide and is characterized in that attaching a total of three sheets of the protective paper.

According to the present invention (claim 10), a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto are wound while a plurality of separating papers are interposed therebetween, and the electrical insulation performance between the plurality of electrode foils is increased. In the method of manufacturing an electronic component in which protective paper is applied to at least one side of the flat plate portion of the lead terminal in order to improve the location where the protective paper needs to be applied from a direction perpendicular to the feeding direction of the electrode foil and the separator paper. Immediately before winding, a sheet of protective paper having a width slightly wider than the width of the flat portion of the lead terminal, the other surface side of the flat portion of the lead terminal, and one surface side of the flat portion of the other lead terminal are protected one sheet. Wide width protective paper that can be protected by paper is supplied at different timings, and the flat plate portion of the one lead terminal is on one side, and the flat plate portion of the other lead terminal is on the separator paper that is in contact with the double side. Paper and the wide Winding while sticking paper, sticking one sheet of the wide protective paper to the separating paper in contact with one side of the flat plate portion of the one lead terminal, and both sides of the flat plate portion of the other lead terminal A total of two protective papers, one narrow and one wide, are pasted on the separating paper in contact with the sheet.

  The present invention has an element completed by winding a plurality of electrode foils each having a flat plate portion of a lead terminal fixed thereto as described above with a plurality of separators interposed therebetween, and the electrical connection between the plurality of electrode foils. In an electronic component formed by attaching a protective paper to the separator paper that contacts at least one side of the flat portion of the lead terminal in order to improve the electrical insulation performance, the width of the narrow portion is slightly wider than the width of the flat portion of the lead terminal. At least one sheet of separator paper in contact with the flat plate portion of each lead terminal is attached to each of the flat plate portions of the plurality of lead terminals so that each of the flat plate portions of the lead terminals is protected by the protective paper. Therefore, when the insulation performance of the lead terminals is the same as the conventional one, there is an effect that the amount of the protective paper used can be saved by about 75%. As a result, the ESR of the electronic component can be reduced while having sufficient electrical insulation performance. Greatly reduced With wear, there is an effect that can be achieved lightweight electronic components, miniaturization.

In the electronic component, the flat portion of the lead terminal is protected so that one side and the other side of the flat portion of the lead terminals are each protected by a protective paper having a width slightly wider than the width of the flat portion of the lead terminal. Since at least two sheets of protective paper having a total width of at least two sheets are attached to the separator papers in contact with both sides of the sheet, the insulation protection only on the one surface side of the flat plate portion of the tab of the lead terminal is 2 This has the effect of saving about 20% of the amount of protective paper used while obtaining double the insulation performance. As a result, the ESR of electronic components can be insulated and protected only on the conventional one side while having sufficient electrical insulation performance. Compared to the above, there is an effect that the reduction can be achieved and the electronic component can be reduced in weight and size. Compared to the conventional protection of both sides of the flat plate portion of the positive and negative lead terminals, the amount of protective paper used can be reduced by 88%. As a result, the electronic parts can be greatly reduced in size. , Light weight can be achieved.

In the electronic component, the lead terminal of the lead terminal is protected by a protective paper having a narrow width that is slightly wider than the width of the flat part of the lead terminal. At least one narrow protective paper is attached to the separator paper in contact with the flat plate portion, and the other surface side of the flat plate portion of the lead terminal and one flat surface portion of the other lead terminal are covered with one protective paper. Since at least one wide protective paper is pasted across the part of the separating paper where the flat portions of both lead terminals are in contact with each other so as to protect, insulation performance of one of the lead terminals is twice that of the conventional one With respect to the other lead terminal, although the same insulation performance as the conventional one is obtained, the amount of use of the protective paper has an effect that can be increased to 20% of the conventional value. Insulation performance There is an effect that it is possible to improve the efficiency of the part manufacturing.

Furthermore, in the above electronic component, the separator paper that contacts the flat plate portion of the lead terminals is protected so that one surface side of the flat plate portions of the plurality of lead terminals is protected by a protective paper that is narrower than the width of the lead terminal. At least two sheets of narrow protective paper are pasted together, and both leads so that the other side of the flat part of the lead terminal and one side of the flat part of the other lead terminal are protected by one protective paper. Since at least one wide protective paper is pasted across the part of the separator paper where the flat part of the terminal touches each other, double positive insulation performance can be obtained for both positive and negative lead terminals. In addition, the amount of protective paper used can be reduced by 61% compared to conventional electronic components with similar insulation performance, and while using high insulation performance, the amount of protective paper used is small, small and lightweight. Electronic components There can be effectively.

In addition, since the protective paper was partially coated with an adhesive on its application surface, the amount of adhesive used was reduced while maintaining sufficient adhesive strength, and the increase in ESR due to the use of protective paper. There is an effect that the electronic component can be reduced and the weight of the electronic component can be reduced.

Moreover, the shape of the application surface of the partial adhesive on the application surface of the protective paper is a straight line in the center in the width direction continuous in the feed direction of the protective paper, a stepped shape of oblique lines intermittent in the feed direction of the protective paper, Steps that are intermittently perpendicular to the feeding direction of the protective paper, two straight lines on both sides in the width direction that are continuous in the feeding direction of the protective paper, a grid of diagonal lines that are intermittent in the feeding direction of the protective paper, and Since it is in the form of scattered dots that are intermittently arranged regularly in the protective paper feed direction, the amount of adhesive used is reduced while ensuring sufficient adhesion, and the increase in ESR due to the use of protective paper is suppressed. In addition, there is an effect that the weight of the electronic component can be reduced.

In addition, in order to improve the electrical insulation performance between the plurality of electrode foils, the plurality of electrode foils to which the flat portions of the lead terminals are respectively fixed are wound while interposing a plurality of separating papers therebetween. In the method of manufacturing an electronic component in which protective paper is applied to the separator paper that contacts at least one side, the flat portion of the lead terminal immediately before winding up the required location of the protective paper from the direction perpendicular to the feeding direction of the electrode foil and separator paper Supplied with a narrow protective paper that is slightly wider than the width of the lead terminal, and wound it while attaching the protective paper of a narrow width to the separator paper that contacts at least one side of the flat portion of the lead terminal. Since at least one sheet of protective paper, which is in contact with one side of each sheet, is attached to a total of at least two narrow protective papers, the ESR is small and compact, while the protective paper application position accuracy is high and insulation performance is excellent. There is an effect that it provides efficient and lightweight electronic components with extremely high accuracy.

Hereinafter, the present invention will be described based on embodiments shown in the drawings. In FIG. 23, an electrolytic capacitor 11 as an example of an electronic component according to the present invention (Claim 1) includes a plurality of flat plate portions 3b of lead terminals 3 (positive lead terminal 3P, negative lead terminal 3M) fixed to each other. An electrode foil 4 (positive electrode foil 4P, negative electrode foil 4M) has an element 12 completed by winding a plurality of separators 5 (5A, 5B) between them, and a plurality of electrode foils 4P, In order to improve the electrical insulation performance between 4M, it is an electronic component in which a protective paper 6 is pasted on a separating paper 5 in contact with at least one side of the flat plate portion 3b of the lead terminals 3P, 3M. Isolation in contact with the flat plate portion 3b of the lead terminals 3P and 3M so as to protect one surface side of the flat plate portion 3b of the plurality of lead terminals 3P and 3M with a protective paper 6 having a width slightly wider than the width of the flat plate portion 3b. At least 1 on paper 5A, 5B Each, is obtained by sticking interposed protective paper 6 of a total of at least two of said narrow.
Here, “a narrow width that is slightly wider than the width of the flat plate portion 3b of the lead terminal 3” is about twice as wide as the flat plate portion 3b in the illustrated embodiment, that is, the width W of the protective paper 6 (see FIG. 4) The length in the element winding direction is as narrow as about twice the width of the flat plate portion 3b (of course not limited to twice, but 7.5 times in the embodiment of FIG. 4). Is considerably narrower than in the prior art and is referred to as “narrow width”. The cut length L of the protective paper 6 is slightly shorter than the width of the electrode foil 4 as shown in FIG.

In FIG. 23, the flat plate portion 3b of the positive lead terminal 3P is fixed to the outside of the positive electrode foil 4P by means of a tab by means of a so-called wedge needle (not shown), and the negative lead terminal 3M The flat plate portion 3b is fixed to the outside of the negative electrode foil 4M by the same means.
And the separating paper 5B is wound inside the winding of the positive electrode foil 4P, and the separating paper 5A is wound outside. Further, the separating paper 5A is wound inside the negative electrode foil 4M, and the separating paper 5B is wound outside.

The protective paper 6A for protecting the flat plate portion 3b of the positive lead terminal 3P is attached to the outer side of the winding of the separating paper 5A with an adhesive 13 (see FIG. 17 and the like), and protects the flat plate portion 3b of the negative lead terminal 3M. Protective paper 6B is attached to the outer side of the separating paper 5B by an adhesive 13 on the outer side.

As shown in FIG. 1, after being wound up as an element 12, the winding end 12a is cleaned up by an adhesive tape 14, and the element 12 is impregnated with an electrolytic solution (not shown) and drained. (Not shown), sealing rubber (not shown) is put in the opening of the aluminum case, this opening is subjected to so-called curling (necking) and sealed, and the electrolytic capacitor 11 (illustrated is the element 12). State).

Next, in FIG. 24, in the electrolytic capacitor 11 as an example of the electronic component according to the present invention (Claim 2), the flat plate portions 3b of the lead terminals 3 (positive lead terminal 3P and negative lead terminal 3M) are fixed. A plurality of electrode foils 4 (positive electrode foil 4P, negative electrode foil 4M) are wound up while interposing a plurality of separating papers 5 (5A, 5B) between them, and a plurality of electrodes are provided. In order to improve the electrical insulation performance between the foils 4P and 4M, an electronic component in which a protective paper 6 is attached to a separating paper 5 in contact with at least one side of the flat plate portion 3b of the lead terminals 3P and 3M, The flat plate portion 3b of the lead terminal 3 is protected so that the one surface side and the other surface side of the flat plate portions 3b of the plurality of lead terminals 3 are protected by the protective paper 6 having a width slightly wider than the width of the flat plate portion 3b of the terminal 3, respectively. Separation paper 5 (5A, 5B) in contact with both sides By at least two, it is obtained by sticking interposed protective paper 6 of a total of at least four narrow.

The protective paper 6A for protecting the flat plate portion 3b of the positive lead terminal 3P is affixed to the outer side of the separating paper 5B and the outer side of the separating paper 5A by an adhesive 13 (see FIG. 17). The protective paper 6B for protecting the flat plate portion 3b of the lead terminal 3M is affixed to the outer side of the separating paper 5A and the outer side of the separating paper 5B by the adhesive 13 respectively.

Next, in FIG. 25, in the electrolytic capacitor 11 as an example of the electronic component according to the present invention (Claim 3), the flat plate portions 3b of the lead terminals 3 (positive lead terminal 3P, negative lead terminal 3M) are fixed. A plurality of electrode foils 4 (positive electrode foil 4P, negative electrode foil 4M) are wound up while interposing a plurality of separating papers 5 (5A, 5B) between them, and a plurality of electrodes are provided. In order to improve the electrical insulation performance between the foils 4P and 4M, an electrolytic capacitor in which a protective paper 6 is attached to a separating paper 5 that contacts at least one side of the flat plate portion 3b of the lead terminals 3P and 3M, The lead terminal is protected so as to protect one surface side of the flat plate portion 3b of one of the lead terminals 3P and 3M by a protective paper 6B having a width slightly wider than the width of the flat plate portion 3b of the terminal 3. The space in contact with the flat plate portion 3b At least one narrow protective paper 6B is attached to the paper 5B, and the other surface side of the flat plate portion 3b of the lead terminal 3M and the one surface side of the flat plate portion 3b of the other lead terminal 3P are attached to one sheet of protective paper. At least one wide protective paper 6A is pasted and interposed across the part of the separating paper 5A where the flat plate portions 3b of the lead terminals 3P and 3M are in contact with each other so as to be protected by 6A.

Next, in FIG. 26, the electrolytic capacitor 11 as an example of the electronic component according to the present invention (Claim 4) has the flat plate portions 3b of the lead terminals 3 (positive lead terminal 3P, negative lead terminal 3M) fixed thereto. A plurality of electrode foils 4 (positive electrode foil 4P, negative electrode foil 4M) are wound up while interposing a plurality of separating papers 5 (5A, 5B) between them, and a plurality of electrodes are provided. In order to improve the electrical insulation performance between the foils 4P and 4M, an electrolytic capacitor in which a protective paper 6 is attached to a separating paper 5 that contacts at least one side of the flat plate portion 3b of the lead terminals 3P and 3M, The flat plate portion 3b of the lead terminals 3P and 3M is protected so that one surface side of the flat plate portion 3b of the plurality of lead terminals 3P and 3M is protected by a protective paper 6B having a width that is slightly wider than the width of the flat plate portion 3b of the terminal 3. Little separation paper 5B in contact with In both cases, a total of two sheets of the protective paper 6B having a narrow width are attached, and the other surface side of the flat plate portion 3b of the lead terminal 3M and the one surface side of the flat plate portion 3b of the other lead terminal 3P are attached to one protective paper 6A. At least one wide protective paper 6A is pasted between the portions of the separating paper 5A where the flat plate portions 3b of the lead terminals 3P and 3M are in contact with each other.

Next, how to apply the adhesive 13 to the protective paper 6 will be described. In the present invention, the adhesive 13 may be applied to the entire surface of the protective paper 6. In order to reduce the thickness and the mass of the element 12, the protective paper 6 is partially applied to the application surface 6a, and the shape of the partial application surface 13a of the adhesive 13 is as shown in FIG. Is a straight line 13A in the center in the width direction that is continuous in the feed direction of the protective paper 6, FIG. 18 is a step 13B that is intermittently shaded in the feed direction of the protective paper 6, and intermittent in the feed direction of the protective paper 6 in FIG. In FIG. 20, two straight lines 13D on both sides in the width direction continuous in the feeding direction of the protective paper 6, in FIG. 20, an intermittent diagonal grid 13E in the feeding direction of the protective paper 6, FIG. Then, in the form of scattered dots 13F that are intermittently arranged in the feed direction of the protective paper 6 People have been applied.

Next, a protective paper supply device 16 (16A, 16B) that forms part of the electrolytic capacitor winding device 15 for manufacturing the electronic component according to the present invention will be described with reference to FIGS.
In FIG. 3, the electrolytic capacitor winding device 15 winds leftward in the figure while simultaneously supplying a pair of electrode foils 4P, 4M and a pair of separators 5A, 5B from right to left in the figure. The protective paper supply device 16 supplies the protective paper 6 from a direction perpendicular to the conveying direction of the electrode foil 4 and the separating paper 5 and cuts the protective paper 6 into an appropriate length. As shown in FIG. 3, it is attached to the separating paper 5 at a position where the flat plate portion 3b of the lead terminal 3 tabbed to the electrode foil 4 can be covered. In FIG. 3, the protective paper 6A is attached to the separating paper 5A and 5B at a position corresponding to the flat plate portion 3b of the lead terminal 3P, and the protective paper 6B is attached to the separating paper 5A and 5B at a position corresponding to the flat plate portion 3b of the lead terminal 3M. Show.

Next, the protective paper supply device 16 (16A, 16B) will be described in detail with reference to FIG. Since the protective paper supply device 16 needs to affix the protective paper 6 to the separating paper 5A and 5B so as to protect both the lead terminals 3P and 3M fixed to the positive and negative electrode foils 4P and 4M, respectively. The protective paper supply device 16A is disposed on the upper side, and the protective paper supply device 16B is disposed on the lower side. Since the mechanisms of the protective paper supply devices 16A and 16B are arranged in a slightly different manner in the winding direction and are completely the same, the same reference numerals are used for the respective parts.

In the protective paper supply device 16A, an arm 19 is fixed to a base 18, a reel holder 20 is fixed to the arm, and a reel 22 to which a protective paper roll 6b is attached is rotatable on the reel shaft 21. The protective paper 6 is supplied while the reel 22 is rotated, and can be continuously supplied until the protective paper 6 runs out.

In the path through which the protective paper 6 is conveyed, the guide roller 23, the feed arm 24 and the feed rollers 25 and 26, the cutter mounting base 28, the guide rail 29, and the protective paper feed table 30 slidably mounted on the guide rail. , A pair of guide shafts 31 that slidably support the cutter mounting base 28, a pair of compression springs 32 that are fitted on the guide shaft and press and urge the cutter mounting base 28 upward, a cutter upper / lower cylinder 33, and protective paper 6 A suction head 34 for sucking the suction head, a suction arm 35 for holding the suction head, a suction head cylinder 36 for moving the suction head 34 up and down, a suction head feed cylinder 38 for moving the suction head 34 in the horizontal direction, A cutter 39 for cutting the protective paper 6, a guide table 40 for guiding the protective paper 6, and the protective paper 6 between the suction head 34 Protective sheet sticking table 41 to be attached to Hanareshi 5 is provided.
Since this mechanism is the same for the protective paper supply device 16B, the same portions are denoted by the same reference numerals in the drawings, and the description thereof is omitted.

In the electronic component manufacturing method according to the present invention (claim 7), the plurality of electrode foils 4 (4P, 4M) to which the flat plate portions 3b of the lead terminals 3 are respectively fixed are provided with a plurality of separating papers 6 (6A, 6B) is wound up, and the protective paper is applied to the separating paper 5A in contact with at least one side of the flat plate portion 3b of the lead terminal 3 in order to improve the electrical insulation performance between the plurality of electrode foils 4 (4P, 4M). 6 is slightly wider than the width of the flat plate portion 3b of the lead terminal 3 immediately before winding up the place where the protective paper 6 is required to be wound from the direction perpendicular to the feeding direction of the electrode foil 4 and the separating paper 5. The protective paper 6 having such a narrow width is supplied, and rolled up while the protective paper 6 having a narrow width is attached to the separating paper 5 in contact with at least one side of the flat plate portion 3b of the lead terminal 3, and the flat plate portions of the plurality of lead terminals 3 are wound. Each of the separators 5 that touch one side of 3b One by one even without the total is a method of sticking a protective sheet 6 of at least two narrow.

In the electronic component manufacturing method according to the present invention (Claim 8), the plurality of electrode foils 4 (4P, 4M) to which the flat plate portions 3b of the lead terminals 3 are respectively fixed are provided with a plurality of separating papers 5 (5A, 5B) is wound while interposing the protective paper on the separating paper 5A in contact with at least one side of the flat plate portion 3b of the lead terminal 3 in order to improve the electrical insulation performance between the plurality of electrode foils 4 (4P, 4M). 6 is slightly wider than the width of the flat plate portion 3b of the lead terminal 3 immediately before winding up the place where the protective paper 6 is required to be wound from the direction perpendicular to the feeding direction of the electrode foil 4 and the separating paper 5. The protective paper 6 having such a narrow width is supplied at different timings, and the protective paper 6 is wound while the protective paper 6 having a narrow width is applied to the separating paper 5 that is in contact with both sides of the flat plate portion 3b of the lead terminal 3. 3 is in contact with both sides of the flat plate portion 3b. Paper 5A, each respectively two to 5B, a method of sticking a total of four narrow protective paper 6A, the 6B.

In the electronic component manufacturing method according to the present invention (Claim 9), a plurality of electrode foils 4 (4P, 4M), to which the flat plate portions 3b of the lead terminals 3 are respectively fixed, are provided with a plurality of separating papers 5 (5A, 5A, 5B). 5B) is wound up and the protective paper is applied to the separating paper 5 that contacts at least one side of the flat plate portion 3b of the lead terminal 3 in order to improve the electrical insulation performance between the plurality of electrode foils 4 (4P, 4M). In the method of manufacturing the electronic component to which the adhesive sheet is attached, just before winding up the place where the protective paper 6 is required to be wound from the direction perpendicular to the feeding direction of the electrode foil 4 and the separator paper 5, the width is slightly larger than the width of the flat plate portion 3b of the lead terminal 3. The narrow protective paper 6B and the wide protective paper 6B that can protect the other surface side of the flat plate portion 3b of the lead terminal 3P and the one surface side of the flat plate portion 3b of the other lead terminal 3M with a single protective paper 6B, respectively. To supply the lead terminal 3 The separators 5A and 5B are in contact with both sides of the flat plate portions 3b of the plurality of lead terminals 3 by winding them while sticking the narrow protective paper 6B and the wide protective paper 6A to the separators 5 in contact with both sides of the flat plate portion 3b. In this method, a total of three protective papers 6A and 6B, each having two narrow widths and one wide width, are pasted.

In the electronic component manufacturing method according to the present invention (Claim 10), a plurality of electrode foils 4 (4P, 4M) to which the flat plate portions 3b of the lead terminals 3 are respectively fixed are provided with a plurality of separating papers 5 (5A, 5A, 5B) is wound up and the protective paper is applied to the separating paper 5 that contacts at least one side of the flat plate portion 3b of the lead terminal 3 in order to improve the electrical insulation performance between the plurality of electrode foils 4 (4P, 4M). 6 is slightly wider than the width of the flat plate portion 3b of the lead terminal 3 immediately before winding up the place where the protective paper 6 is required to be wound from the direction perpendicular to the feeding direction of the electrode foil 4 and the separating paper 5. A protective paper 6B having a narrow width and a wide protective paper 6 capable of protecting the other surface side of the flat plate portion 3b of the lead terminal 3P and the one surface side of the flat plate portion 3b of the other lead terminal 3M with one protective paper 6 respectively. Supply with shifted timing, one lead The flat plate portion 3b of the child 3 is wound on one side, and the flat plate portion of the other lead terminal 3 is wound on the separating paper 5 in contact with both sides while a narrow protective paper 6 and a wide protective paper 6 are attached. On the 3M flat plate portion 3b, one wide protective paper 6A is affixed to the separating paper 5A in contact with one side, and on the other flat plate portion 3b of the lead terminal 3, one narrow paper is in contact with the separating paper 5 in contact with both sides. This is a method of sticking two sheets of protective paper 6 in total, one wide.

The present invention is configured as described above, and the operation thereof will be described below.
First, the operation of the protective paper supply device 6 will be described with reference to FIGS. 8 to 16. In FIG. 9, the device is in the “standby” state, and the suction head 34 is moved to the suction head cylinder 36 and the suction head cylinder 36 by the suction head feed cylinder 38. Together with the suction arm 35, it moves to the left most in the drawing and stops, and is located immediately above the protective paper sticking table 41. At this time, as shown in FIGS. 3 and 8, two electrode foils 4P and 4M on which a lead terminal 3P and 3M (not shown in FIG. 9) are tabbed are placed on a pair of upper and lower protective paper sticking bases 41, respectively. (Not shown in FIG. 9) and two sheets of separating paper 5A and 5B (not shown in FIG. 9) for separating these electrode foils are sent by the winding device 15 of the electrolytic capacitor, respectively. Protective papers 6A and 6B (not shown) cut to an appropriate length L (FIG. 4) by a cutter 31 are adsorbed on the lower surface 34a of 34, respectively.

In FIG. 10, the apparatus is in the “pasting” state of the protective paper 6, the suction head cylinder 36 is operated, the suction arm 35 and the suction head 34 are lowered as indicated by the arrow A, and are sucked by the suction head 34. The protective paper 6A that has been applied is affixed to the corresponding position (FIG. 3) of the lead terminal 3P of the separating paper 5A on the upper protective paper affixing table 41, and the protective paper 6B is the separating paper on the lower protective paper affixing table 41. At this time, the suction of the protection paper 6 by the suction head 34 is released, and the protection paper 6 moves from the suction head 34 to the separating paper 5. In the embodiment shown in FIG. 8, the pair of protective paper supply devices 16 includes a lower protective paper supply device 16 </ b> B and an upper protective paper supply device 41 on the upstream side in the winding direction. 16A and its protective paper sticking table 41 are respectively arranged on the downstream side in the winding direction, but when the winding direction positions of the pair of protective paper sticking tables 41 are the same, on each protective paper sticking table 41, At the same time, the protective paper 6A and 6B are not attached. For example, in the state shown in FIG. 3, the protective paper 6B is supplied immediately before the lead terminal 3M reaches the lower protective paper attaching base 41, and is first isolated. The protective paper 6B is affixed to the paper 5B, and the protective paper 6A is supplied immediately before the lead terminal 3P reaches the upper protective paper affixing base 41 after winding, and the protective paper 6A is affixed to the isolation paper 5A. It is what is done.

In FIG. 11, the apparatus is in a “woundable” state, and the suction head 34 is operated by the suction head cylinder 36, and the suction arm 35 and the suction head 34 are raised as shown by the arrow B, As shown in FIG. 3, the electrode foil 4 and the separating paper 5 can be wound by the electrolytic capacitor winding device 15, and the operation of the protective paper supply device 16 is stopped. Yes. During this time, the electrode foil 4 and the separating paper 5 are wound up by a certain amount as shown in FIG.
As described above, in the present invention, the protective paper 6 is supplied from a direction perpendicular to the winding immediately before the electrode foil 4 and the separating paper 5 are wound, and can be attached to the separating paper 5 while being cut. is there.

In FIG. 12, the apparatus is in the “protective paper feed” state, and the suction head 34 operates in the suction head feed cylinder 38, and the suction head cylinder 36, the suction arm 35 and the suction head 34 are shown in the drawing as indicated by an arrow C. The suction head 34 moves to the right and stops immediately above the guide table 40, the protective paper supply device 16 is activated, and the pair of upper and lower feed rollers 26 sandwich the protective paper 6 from above and below. Then, it is moved to the left in the figure as indicated by arrow D, and is fed by a fixed amount so that an appropriate length L that can protect the flat plate portion 3b of the lead terminal 3 is cut and left. It has advanced to a position where it can be adsorbed. At this time, the protective paper 6 is pulled out from the protective paper roll 6b, guided by the guide roller 23 and the guide roller 25, and the reel 22 is rotated and supplied.

In FIG. 13, the apparatus is in the “adsorption start” state, and the protective paper 6 </ b> A is adsorbed by vacuum suction by the adsorption head 34 at the length that overlaps the adsorption head 34 from the front end 6 c.

In FIG. 14, the apparatus is in the “cut and clamp” state, the guide table 40 is raised, the protective paper 6A sucked by the suction head 34 is clamped from below, and then the cutter upper and lower cylinders 33 are operated. Then, the cutter 39 moves down along with the cutter mount 28 against the compression spring 32 as shown by the arrow E, and cuts the protective paper 6A.

In FIG. 15, the apparatus is in a “protective paper transport” state, and the suction head feed cylinder 38 is operated in a state where the cut protective paper 6 </ b> A is sucked by the suction head 34. The suction head 34 moves to the left in the figure as indicated by the arrow F, and the protective paper 6A is conveyed to the protective paper sticking table 41 together with the suction head 34.

In FIG. 16, the apparatus is in the “cutter open” state, the cutter upper and lower cylinders 33 are deactivated, and the cutter 39 is lifted and opened as indicated by the arrow G by the restoring force of the compression spring 32. 34 is on the protective paper sticking table 41 with the protective paper 6A, whereby one cycle of supplying the protective paper is completed, and the apparatus returns to the “standby” state of FIG.

Next, as shown in FIGS. 17 to 22, in the present invention, the adhesive 13 is not applied to the entire surface of the protective paper 6, but is partially applied in various shapes. The adhesive 13 can be saved significantly while having a sufficient adhesive force for the adhesive 5. Further, the increase in ESR can be prevented by the amount of the adhesive 13 being small.

Next, the operation of the electrolytic capacitor 11 as an example of the electronic component according to the present invention will be described with reference to FIGS. In the embodiment of the electrolytic capacitor 11 shown in FIG. 23, a single sheet of protective paper 6A that is slightly wider than the width of the flat plate portion is a separating paper so as to protect the flat plate portion 3b of the positive lead terminal 3P. A sheet of protective paper 6B, which is a little wider than the width of the flat plate portion, is attached to the separating paper 5B so as to protect the flat plate portion 3b of the negative lead terminal 3M. The length of the protective paper 6A, 6B in the winding direction is equal to the width W (FIG. 4) of the protective paper 6 fed out from the protective paper supply device 16 of FIG. Since the position of the lead terminal 3 is always grasped by the winding device 15 of the electrolytic capacitor because it is supplied immediately before the element 12 of the electrolytic capacitor 11 is wound, the flat plate portion 3b of the lead terminal 3 is just a narrow protection. Protective paper 6 at the timing when it comes to the center of paper 6 It can be supplied.
For this reason, a total of two protective papers 6 are affixed extremely reasonably, and the one surface side of the flat plate portion 3b of the lead terminal 3 can be sufficiently protected even though the protective paper 6 is narrow. This not only saves the protective paper 6 compared to the conventional wide protective paper 6 (FIG. 27), but also reduces the diameter of the wound element 12 by the small amount of the protective paper 6. Thus, an increase in ESR can be prevented, and the electrolytic capacitor 11 having excellent electrical characteristics can be obtained.

In the embodiment of the electrolytic capacitor 11 of FIG. 24, in addition to the embodiment of FIG. 23, a similar narrow protective paper 6A is also attached to the separating paper 5B on the other surface side of the flat plate portion 3b of the positive lead terminal 3P. The same narrow protective paper 6B is also affixed to the separation sheet 5A on the other side of the flat plate portion 3b of the negative lead terminal 3M, and two narrow separation sheets 5 are attached to one flat plate portion 3b. Since it is affixed, both sides of the flat plate portion 3b of the lead terminal 3 can be sufficiently protected even though the ratio of the protective paper 6 to the element 12 is small, and the diameter and ESR of the element 12 can be increased. Thus, the electrolytic capacitor 11 having excellent electrical characteristics can be obtained.

In the embodiment of the electrolytic capacitor 11 of FIG. 25, first, one sheet of protective paper 6 protects one surface side of the flat plate portion 3b of the positive lead terminal 3P, and the flat plate portion 3b of the negative lead terminal 3M. A single narrow width so as to cover the two flat plate portions 3b so as to protect the other surface side, and is affixed to the separating paper 5A, and to protect only one surface side of the flat plate portion 3b of the negative lead terminal 3M. The protective paper 6B is affixed to the separating paper 5B.
Therefore, depending on the wide protective paper 6A, the ratio of the protective paper 6 occupying the element 12 is increased as in the conventional case. However, one wide protective paper 6 is supplied immediately before the element 12 is wound, and another sheet is provided. It is rational in terms of the process to supply the protective paper 6B having a narrow width so that one side of the flat plate portion 3b of the positive lead terminal 3P and both sides of the negative lead terminal 3M are protected. Thus, the electrolytic capacitor 11 having excellent electrical characteristics can be obtained without significantly increasing the ESR.

In the embodiment of the electrolytic capacitor 11 of FIG. 26, first, as in the embodiment of FIG. 25, the one surface side of the flat plate portion 3b of the positive lead terminal 3P and the other surface side of the flat plate portion 3b of the negative lead terminal 3M are protected. In this way, a wide protective paper 6A is applied across both flat plate portions, and then a single narrow protective paper 6B is used as a separating paper so as to protect the other surface side of the flat plate portion 3b of the positive lead terminal 3P. Along with 5B, a sheet of protective paper 6B having a narrow width is attached to the separating paper 5B so as to protect one side of the flat plate portion 3Bb of the negative lead terminal 3M.
For this reason, depending on the wide protective paper 6A, the ratio of the protective paper 6 occupying the element 12 is increased as in the conventional case, but one wide protective paper 6 is supplied immediately before the element 12 is wound, and two more sheets are provided. It is rational in terms of the process to supply the protective paper 6B having a narrow width so that both sides of the flat plate portion 3b of the positive lead terminal 3P and both sides of the negative lead terminal 3M are protected. Thus, the electrolytic capacitor 11 having very excellent electrical characteristics can be obtained without increasing the ESR so much.

In the above embodiment, the electronic component has been described as the electrolytic capacitor 11, but the capacitor is not limited to the electrolytic capacitor 11, and any other element winding type capacitor such as a film capacitor may be used. The present invention can also be applied to a capacitor, and can be applied to various electronic components as long as it is a winding-type electronic component other than a capacitor.

1 to 26 relate to an embodiment of the present invention, and FIG. 1 is a perspective view of an element of an electrolytic capacitor as an example of an electronic component. It is a partially broken perspective view of the element of an electrolytic capacitor. FIG. 3 is a schematic perspective view showing a state in which protective paper is supplied by a protective paper supply device from a direction perpendicular to the winding direction immediately before the electrode foil and the separator paper are wound by the electrolytic capacitor winding device. It is a partial top view which shows the isolation | separation paper with which protective paper was stuck, the lead terminal protected by this, and electrode foil. It is a fragmentary longitudinal cross-section which shows the state by which the flat plate part of the lead terminal is protected by the protection paper. It is a longitudinal cross-sectional view which shows the state which the protective paper affixed on the separating paper via the adhesive agent apply | coated to the whole surface, and has protected the flat part of the lead terminal. It is a longitudinal cross-sectional view which shows the state which the protective paper affixed on the separating paper through the adhesive agent apply | coated partially, and has protected the flat plate part of the lead terminal. It is a perspective view of the supply apparatus of protective paper. FIG. 9 to FIG. 16 show the respective states of supplying the protective paper, and FIG. 9 is a side view of the main part showing the “standby” state of the protective paper supply device. It is a principal part side view which shows the "sticking" state of the supply apparatus of protective paper. It is a principal part side view which shows the "winding ready" state of the supply apparatus of protective paper. It is a principal part side view which shows the "protective paper feed" state of the protective paper supply apparatus. It is a principal part side view which shows the "adsorption start" state of the supply apparatus of protective paper. It is a principal part side view which shows the "cut and clamp" state of the supply apparatus of protective paper. It is a principal part side view which shows the "protection paper conveyance" state of the supply apparatus of protection paper. It is a principal part side view which shows the "cutter open" state of the supply apparatus of a protection paper. FIGS. 17 to 22 show a part of the adhesive applied to the protective paper in various shapes, and FIG. 17 is a partial plan view of the protective paper in which the adhesive is applied in a linear shape in the width direction. . It is a partial top view of the protection paper which apply | coated the adhesive agent with the staircase shape of the oblique line intermittent to a feed direction. It is a partial top view of the protective paper which apply | coated the adhesive agent with the staircase shape intermittently orthogonal to a feed direction. It is a partial top view of the protective paper which apply | coated the adhesive agent by two linear shapes of the width direction both sides. It is a partial top view of the protective paper which apply | coated the adhesive agent with the grid | lattice shape of a diagonal line. It is a partial top view of the protective paper which apply | coated the adhesive agent with the scattered dot shape of the regular arrangement | positioning discontinuous in a feed direction. FIG. 23 to FIG. 26 show various protective paper pasting states. FIG. 23 shows a narrow width so as to protect one side of the flat plate portion of the positive and negative lead terminals one by one with a total of two narrow protective papers. It is a fragmentary longitudinal cross-sectional view of the element of the electrolytic capacitor which shows the state which stuck each protective paper. Partial vertical cross-sectional view of the element of the electrolytic capacitor showing a state in which the protective sheet of the narrow width is pasted so that the both sides of the flat plate portion of the positive and negative lead terminals are protected by the total of four narrow protective sheets. It is. A sheet of wide protective paper is affixed so that one side of the flat part of the positive and negative lead terminals is protected with a wide protective paper, and only the flat part of the negative lead terminal is protected with a narrow protective paper. It is a fragmentary longitudinal cross-sectional view of the element of the electrolytic capacitor which shows the state which stuck one sheet of protective paper to. A sheet of wide protective paper is affixed to protect one side of the flat plate portion of the positive and negative lead terminals with a wide protective paper, and the flat plate portion of the positive and negative lead terminals is protected with a narrow protective paper. It is a partial longitudinal cross-sectional view of the element of the electrolytic capacitor which shows the state which each stuck two sheets of protective paper. The part of the element of the electrolytic capacitor showing a state in which one wide protective paper is pasted across both flat plate portions so as to protect the flat plate portions of the positive and negative lead terminals with the wide protective paper according to the conventional example. It is a longitudinal cross-sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrolytic capacitor which is an example of electronic component 2 Element 3 Lead terminal 3a Tab 3b Flat plate part 3c Foil fixed edge 3d Counterbored hole 3P Positive lead terminal 3M Negative lead terminal 4 Electrode foil 4P Positive electrode foil 4M Negative electrode foil 5 Isolation Paper 5A Separating paper 5B Separating paper 6 Protective paper 6a Affixed surface 6b Protective paper roll 6c Tip 6A Protective paper 6B Protective paper 11 Electrolytic capacitor 12 as an example of electronic component 12 Element 12a Winding end 13 Adhesive 13a Application surface 13A Straight line 13B Stairs 13C intermittent in the feed direction Stairs 13D intermittent in the feed direction Two straight lines 13E on both sides in the width direction Intermittent diagonal grid 13F in the feed direction Intermittent regular arrangement in the feed direction Scattering point 14 Adhesive tape 15 Electrolytic capacitor winding device 16 Protective paper supply device 16A Protective paper supply device 16B Protection Supply device 18 base 19 arm 20 reel holder 21 reel shaft 22 reel 23 guide roller 24 feed arm 25 guide roller 26 feed roller 28 cutter mounting base 29 guide rail 30 protective paper feed table 31 guide shaft 32 compression spring 33 cutter upper and lower cylinders 34 Suction head 35 Suction arm 36 Suction head cylinder 38 Suction head 39 Cutter 40 Guide table 41 Protective paper affixing base A arrow B arrow C arrow D arrow E arrow F arrow G arrow L Length of cut protective paper (winding direction) In width)
W Protective paper width (length in the winding direction)

Claims (10)

In order to improve the electrical insulation performance between the plurality of electrode foils, having a completed element by winding a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed while interposing a plurality of separating papers therebetween In the electronic component formed by attaching a protective paper to the separating paper contacting at least one side of the flat plate portion of the lead terminal, the plurality of the protective plates are formed by a narrow protective paper that is slightly wider than the width of the flat plate portion of the lead terminal. At least two sheets of the narrow protective paper are pasted and interposed at least one sheet on the separator paper in contact with the flat plate portion of the lead terminal so as to protect one side of the flat plate portion of the lead terminal. Features electronic components. In order to improve the electrical insulation performance between the plurality of electrode foils, having a completed element by winding a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed while interposing a plurality of separating papers therebetween In the electronic component formed by attaching a protective paper to the separating paper contacting at least one side of the flat plate portion of the lead terminal, the plurality of the protective plates are formed by a narrow protective paper that is slightly wider than the width of the flat plate portion of the lead terminal. At least four sheets of the protective paper having a narrow width, at least two sheets of the separator paper contacting both sides of the flat plate portion of the lead terminal so as to protect one side and the other side of the flat plate portion of the lead terminal, respectively. An electronic component characterized in that a paste is interposed. In order to improve the electrical insulation performance between the plurality of electrode foils, having a completed element by winding a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed while interposing a plurality of separating papers therebetween In the electronic component formed by attaching a protective paper to the separating paper contacting at least one side of the flat plate portion of the lead terminal, the plurality of the protective plates are formed by a narrow protective paper that is slightly wider than the width of the flat plate portion of the lead terminal. At least one of the narrow protective papers is affixed to the separator paper in contact with the flat plate portion of the lead terminal so as to protect one side of the flat plate portion of one of the lead terminals. At least 1 across the part of the separating paper with which the flat plate portions of the lead terminals are in contact with each other so that the other surface side of the flat portion of the lead terminal and the one surface side of the flat portion of the other lead terminal are protected by a single protective paper. Wide Electronic component, characterized in that the protective paper is attached interposed. In order to improve the electrical insulation performance between the plurality of electrode foils, having a completed element by winding a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed while interposing a plurality of separating papers therebetween In the electronic component formed by attaching a protective paper to the separator paper contacting at least one side of the flat plate portion of the lead terminal, the plurality of lead terminals are formed by a protective paper having a width slightly wider than the width of the lead terminal. At least two of the narrow protective papers are pasted and interposed on the separator paper in contact with the flat plate portion of the lead terminal so as to protect one side of the flat plate portion of the lead terminal, and the other surface of the flat plate portion of the lead terminal At least one wide protective paper is pasted across the part of the separating paper where the flat plate portions of both lead terminals are in contact with each other so that one side of the flat plate portion of the lead terminal and the other lead terminal is protected by a single protective paper. Intervene Electronic components, characterized in that. The electronic component according to any one of claims 1 to 4, wherein an adhesive is applied to the protective paper, in whole or in part, on a sticking surface thereof. The shape of the application surface of the partial adhesive on the application surface of the protective paper is a straight line in the center in the width direction continuous in the feed direction of the protective paper, a stepped shape of oblique lines intermittent in the feed direction of the protective paper, Steps that are intermittently perpendicular to the feeding direction of the protective paper, two straight lines on both sides in the width direction that are continuous in the feeding direction of the protective paper, a grid of diagonal lines that are intermittent in the feeding direction of the protective paper, and The electronic component according to claim 5, wherein the electronic component has any one of scattered dots regularly arranged in a protective paper feeding direction. In order to improve the electrical insulation performance between the plurality of electrode foils by winding up a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed with a plurality of separators interposed therebetween, the flat plate portions of the lead terminals In the method of manufacturing an electronic component for attaching a protective paper to the separator paper that is in contact with at least one surface side, immediately before winding up the necessary location of the protective paper from a direction perpendicular to the feeding direction of the electrode foil and the separator paper, Supplying a protective paper having a narrow width that is slightly wider than the width of the flat plate portion of the lead terminal, and winding the protective paper with the narrow width on the separator paper contacting at least one surface of the flat plate portion of the lead terminal A method of manufacturing an electronic component, wherein a total of at least two of the narrow protective papers are attached to each of the separating papers in contact with one side of the flat plate portions of the plurality of lead terminals. In order to improve the electrical insulation performance between the plurality of electrode foils by winding up a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed with a plurality of separators interposed therebetween, the flat plate portions of the lead terminals In the method of manufacturing an electronic component for attaching a protective paper to the separator paper that is in contact with at least one surface side, immediately before winding up the necessary location of the protective paper from a direction perpendicular to the feeding direction of the electrode foil and the separator paper, Narrow width protective paper that is slightly wider than the flat portion of the lead terminal is supplied at different timings, and the narrow protective paper is affixed to the protective paper that contacts both sides of the flat portion of the lead terminal. The electronic component manufacturing method is characterized in that a total of four pieces of the narrow width protective paper are pasted on the protective paper contacting each side of the flat plate portions of the plurality of lead terminals. . In order to improve the electrical insulation performance between the plurality of electrode foils by winding up a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed with a plurality of separators interposed therebetween, the flat plate portions of the lead terminals In the method of manufacturing an electronic component for attaching a protective paper to the separator paper that is in contact with at least one surface side, immediately before winding up the necessary location of the protective paper from a direction perpendicular to the feeding direction of the electrode foil and the separator paper, A protective paper having a width that is slightly wider than the flat portion of the lead terminal, and a wide width capable of protecting the other surface side of the lead terminal flat plate portion and one surface side of the other lead terminal flat plate portion with a single protective paper. Each of the plurality of lead terminals is provided by supplying protective papers at different timings, and winding the narrow protective paper and the wide protective paper on the protective paper contacting both sides of the flat plate portion of the lead terminal. Flat Two respective narrow on both sides of the protective sheet in contact with the part, one broad method of manufacturing an electronic component, which comprises sticking a total of three sheets of the protective paper. In order to improve the electrical insulation performance between the plurality of electrode foils by winding up a plurality of electrode foils to which the flat plate portions of the lead terminals are respectively fixed with a plurality of separators interposed therebetween, the flat plate portions of the lead terminals In the method of manufacturing an electronic component in which protective paper is attached to at least one surface side of the lead terminal, the plate of the lead terminal is wound immediately before winding up the necessary place of the protective paper from a direction perpendicular to the feeding direction of the electrode foil and the separator paper. Protective paper having a narrow width that is slightly wider than the width of the portion and wide protective paper that can protect the other surface side of the flat plate portion of the lead terminal and the one surface side of the flat portion of the other lead terminal with one protective paper. Supply the staggered protective paper and the wide protective paper to the separator paper that contacts the flat sheet of the one lead terminal on one side and the flat part of the other lead terminal on both sides. Winding while One plate of the lead terminal is pasted with one sheet of the wide protective paper on the separator paper in contact with one side, and the flat plate of the other lead terminal has a narrow width on the separator paper in contact with both sides. A method for manufacturing an electronic component, comprising affixing a total of two sheets of protective paper, one sheet and one wide sheet.

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