TWI440063B - Electronic parts and the production method thereof - Google Patents

Description

Electronic component and method of manufacturing same

The present invention relates to an electronic component and a method of manufacturing the same, and more particularly to an electrolytic capacitor which can be used as an example of the electronic component and a method of manufacturing the same, the electrolytic capacitor being of a type consisting of a plurality of electrode foils, and The electrode foil is rolled up together with a plurality of sheets of insulating paper interposed between the electrode foils, and the electrode foils have flat portions of a plurality of leads respectively fixed thereto, wherein the protective sheets are respectively adhered On the insulating paper, the insulating paper is in contact with both side faces of the flat portions of the leads so as to increase the electrical insulation property between the electrode foils, and the protective papers are adhered so that the protective papers will not Will significantly increase the thickness (diameter) of the rolled-up capacitor without increasing the equivalent series resistance (ESR) of the rolled-up capacitor, just before the portion of the insulating paper to which the protective paper is adhered is rolled up, That is, the protective paper is first supplied to the insulating paper in a direction substantially perpendicular to the direction in which the insulating paper and the electrode foil are conveyed so as to be rolled up. Therefore, the protective sheets having a predetermined width (the length in the winding direction) which is slightly wider than the width of the flat portions of the leads are respectively adhered to the insulating sheets so as to protect both side faces of the flat portions of the leads.

In summary, an electrolytic capacitor as an example of such an electronic component is composed of an element including a plurality of electrode foils, that is, for example, two electrode foils together with two sheets of insulating paper interposed between the electrode foils Rolled up together. The component is further composed of a plurality of protective sheets respectively adhered to the insulating paper, and the insulating sheets are connected to the positive and negative leads. At least one side of the portion is in contact to increase the electrical insulation properties between the electrode foils.

In general, it is necessary that the electrolytic capacitor has an electrical property of a small ESR (equivalent series resistance) which is caused by driving the electrolyte. In order to reduce the electric resistance, it is necessary that the insulating papers are suitable for holding a sufficient amount of driving electrolyte, and at the same time, the insulating papers are as thinnest as possible and the density is as low as possible insofar as the papers are not short-circuited. In this respect, very thin insulating papers having practically excellent properties are currently commercially available.

In addition, it must be noted that the shape and distribution of the fibers forming the insulating paper are related to the passing distance of the electrolyte and the passing speed, which may affect the series resistance.

In addition, it must be noted that in order to increase the electrical insulation between the flat portions of the positive and negative leads attached to the electrode foils together with the insulating paper, the protective sheets must have any optional winding direction. The thickness and length (the width of the protective sheets) are selected, and the protective sheets are respectively adhered to the insulating papers in contact with at least one side of the flat portions of the leads to sufficiently protect the leads and reduce the capacitor ESR.

However, the conventional protective paper adhered to the insulating paper is relatively long in the winding direction (that is, the width of the protective paper), and is supplied to the extremely early stages of the winding up with respect to the insulating paper and the electrode foils. Insulation paper.

For example, Fig. 27 shows a rolled up electrolytic capacitor element 2 as an example of an electronic component. In this example, the positive and negative electrode foils on which the flat portions 3b of the convex portions 3a of the positive and negative leads 3 (positive lead 3P, negative lead 3M) are fixed can be fixed by a puncture device and the like. 4 (positive foil 4P, negative foil 4M) is by a roll-up device (not shown) The protective paper 5 (5A, 5B) interposed between the electrode foils is wound up counterclockwise while being supplied at an earlier stage with respect to the winding up of the insulating paper, which is approximately the lead wires 3 The flat portion 3b of the convex portion 3a has a width of 10 to 11 times long so as to be adhered to a region where the insulating paper 5A is in contact with one side of the positive lead 3P and one side of the negative lead 3M and extends therebetween.

However, such a long protective sheet 6 is only used to protect one side of the flat portion 3b of the two leads 3. Further, there is a disadvantage in that the long protective paper 6 increases the thickness (diameter) of the electrolytic capacitor element 2 and at the same time increases electrical properties, particularly the ESR of the electrolytic capacitor 1.

Further, in order to protect both side faces of the flat plate portions of the lead wires, it is necessary to prepare the protective paper 6A which is about 26 times longer than the width of the flat plate portion 3b in the transporting direction and about 10 times longer than the width of the flat plate portion 3b in the transporting direction. Protect the paper 6B. That is, the total length of the protective sheets 6 to be rolled up is about 36 times longer than the width of the flat portions 3b. Therefore, the thickness (diameter) of the electrolytic capacitor element 2 will be increased. The result is a column disadvantage that the electrolytic capacitor 1 will become larger and heavier, and the electrical properties (especially ESR) will be increased to about 3.6 times as many as the conventional one shown in Fig. 27 in a simple calculation, and this It is also only one side of each flat portion 3b of each lead 3.

According to the prior art, it is inevitable that the protective papers are so long in the winding direction because the protective papers are placed at an early time before the portions where the insulating paper is adhered by the protective paper are rolled up. It is supplied to the insulation paper.

The documents related to the present invention are not shown here because of The inventor and/or applicant(s) have not found such documents.

The present invention has been made to eliminate the disadvantages and disadvantages of the prior art.

Accordingly, it is an object of the present invention to provide an electronic component including an element 12 which is constructed of a plurality of electrode foils which together with a plurality of sheets of insulating paper interposed between the electrode foils Rolled up, and the electrode foils have a plurality of leads respectively fixed thereto, the leads are composed of a plurality of flat portions each having a predetermined width, and the components are additionally equipped with a plurality of sheets to be respectively a protective paper adhered to the insulating paper, the insulating paper being in contact with at least one side of the flat portion of the lead wires to increase electrical insulation properties between the electrode foils, and the electronic component includes at least two (2) The sheet has a predetermined narrow width of protective paper, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads, and each of the protective sheets is adhered to the respective flat portions of the leads Each of the sheets of insulating paper is so as to protect one side of the flat portion of the leads. That is, the object of the present invention is to provide an electronic component which is light in weight and small in size, and which can reduce the amount of protective paper by about 75% compared with the conventional protective paper, under the premise of achieving the same electrical insulating performance. At the same time, the ESR of this electronic component has also been significantly reduced.

Another object of the present invention is to provide an electronic component comprising at least four (4) sheets of protective paper having a predetermined narrow width, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads, in the protective paper Two (2) sheets are adhered to each of the insulating papers in contact with the flat portions of the leads On the chip, so that one side and the opposite side of the flat portion of the lead wires can be protected. That is, it is an object of the present invention to provide a lightweight and small-sized electronic component having an electrical insulation performance that is about twice as high as that of the prior art, in which only one side of the flat portion of the lead projection is protected And has a protective paper consumption of about 20% less than the conventional one. In addition, the efficacy of the electronic component is that the ESR has been significantly reduced compared to the conventional one, in which electrical insulation is only prepared at one side of the flat portion of the lead projections. Incidentally, the amount of protective paper used to protect both side faces of the flat portion of the lead projections is reduced by about 88% compared to the conventional user.

Another object of the present invention is to provide an electronic component comprising at least one sheet of protective paper having a predetermined narrow width which is slightly wider than the width of the flat portions of the leads and which is adhered to the leads One of the insulating sheets in contact with one of the flat portions so that the protective paper can protect one side of the flat portion of the lead, the electronic component additionally including another protective sheet having a wide width, and this Another piece of protective paper will be adhered to one of the insulating papers when it is extended between the two regions, and the two regions are in contact with the flat portions of the leads, respectively, so as to protect one The opposite side of the flat portion of the lead and one side of the flat portion of the other lead. That is, it is an object of the present invention to provide an electronic component that allows one of the leads to obtain approximately twice as much electrical insulation as a conventional one, while the other of the leads is known to the practitioner. the same. In this case, although the amount of protective paper is increased by about 20% compared with the conventional one, an intermediate grade electronic component can be manufactured.

Another object of the present invention is to provide an electronic component including The second (2) sheet has a protective paper slightly wider than the width of the flat portion of the leads, and the protective sheets are adhered to the insulating papers in contact with the flat portions of the leads, so that the protective sheets are One side of the flat portion of the lead wires may be separately protected, the electronic component additionally including another protective sheet having a wide width, and the other protective paper will be adhered to the insulating paper when it is extended between the two regions On one of the sheets, the two regions are in contact with the flat portions of the leads, respectively, so as to protect one side of the flat side of the flat portion of one lead and one side of the flat portion of the other lead. That is, it is an object of the present invention to provide an electronic component that is lightweight and small in size, wherein both the positive and negative leads have about twice as much electrical insulation as conventional ones, while the amount of protective paper is reduced by 61%. .

Another object of the present invention is to provide an electronic component equipped with a plurality of protective sheets having an adhesive, and the adhesive is partially applied to the coated side of the protective paper so as to reduce the adhesive The amount of the electronic component is reduced by the amount while maintaining sufficient adhesion and lowering the ESR.

Another object of the present invention is to provide an electronic component equipped with a plurality of protective sheets having an adhesive which is partially applied to the coated side of the protective paper, and the form of application is: a form in which the adhesive is continuously extended toward the direction of the protective paper and continuously extending toward the width of the protective paper at the center; a step consisting of a plurality of intermittent oblique lines extending in the direction in which the protective paper is conveyed Form; in the form of a step formed by a plurality of intermittent vertical lines extending in the direction in which the protective sheets are conveyed; spaced apart from each other in the width direction and extending in the direction in which the protective sheets are conveyed The form of two straight lines; in the form of a lattice formed by a plurality of intermittent oblique lines extending in the direction in which the protective paper is conveyed; or in the form of a plurality of scatters extending in the direction in which the protective paper is conveyed. That is, it is an object of the present invention to provide an electronic component which is lightened by reducing an adhesive while maintaining sufficient adhesion and reducing the ESR of the electronic component.

It is still another object of the present invention to provide a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper interposed between the electrode foils, each of which is The sheet electrode foil has a lead formed of a flat portion having a predetermined width and fixed to each of the electrode foils, and the insulating paper is attached to at least one side of the flat portion of the lead Contacting and having a protective sheet to which a plurality of sheets are adhered so as to increase electrical insulation between the electrode foils, the method comprising the steps of: being substantially perpendicular to the direction in which the insulating paper is conveyed so as to be rolled up In the direction, before the portions of the insulating paper to which the protective paper is adhered are rolled up, respectively, a plurality of protective sheets having a predetermined narrow width are separately supplied to the insulating paper, and the predetermined narrow width is slightly wider than The width of the flat portion of the lead wire, so that at least two (2) sheets of protective paper having a narrow width can be adhered to the insulating paper, one of which protects the paper system from adhering to one of the insulating papers, Another protective paper-based sheet adhered to the insulating sheet in all of the other sheet, and this side surface of such flat plate portion of the insulating paper into contact with this wire. That is, it is an object of the present invention to provide a method for efficiently manufacturing a lightweight and small-sized electronic component in which protective papers are accurately disposed therein while maintaining excellent electrical insulation properties and Reduce ESR.

In other words, the present invention (Application No. 1) relates to an electronic component including an element composed of a plurality of electrode foils, and the electrode foils are interposed therein together with a plurality of sheets. The insulating paper between the electrode foils is rolled up together, and the electrode foils have a plurality of leads respectively fixed thereto, and the leads are composed of a plurality of flat portions each having a predetermined width, and the components are further composed of Equipped with a plurality of sheets of protective paper which are respectively adhered to the insulating paper, and the insulating sheets are in contact with at least one side of the flat portions of the leads 3 so as to increase electrical insulation properties between the electrode foils, The electronic component includes at least two (2) sheets of protective paper having a predetermined narrow width, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads, each of the protective sheets being adhered to the respective The flat portion of the lead contacts each of the insulating sheets so as to protect one side of the flat portion of the leads.

Further, the present invention (the second aspect of the patent application) relates to an electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are interposed between the electrode foils together with the plurality of sheets The insulating paper is rolled up together, and the electrode foils have a plurality of leads respectively fixed thereto, and the leads are composed of a plurality of flat portions each having a predetermined width, and the components are additionally provided with plural The sheets are respectively adhered to the protective paper on the insulating paper, and the insulating papers are in contact with at least one side of the flat portions of the leads 3 so as to increase the electrical insulating properties between the electrode foils, the electronic parts including At least four (4) sheets have a predetermined narrow width of protective paper, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads. Two (2) sheets of the protective paper are adhered to each of the insulating sheets in contact with the flat portions of the leads, and one side and the opposite side of the flat portions of the leads are protected.

Further, the present invention (claim 3 of the patent application) relates to an electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are interposed with the plurality of sheets of the electrode foils The insulating paper is rolled up together, and the electrode foils have a plurality of leads respectively fixed thereto, and the leads are composed of a plurality of flat portions each having a predetermined width, and the components are additionally equipped with The plurality of sheets are respectively adhered to the protective paper on the insulating paper, and the insulating papers are in contact with at least one side of the flat portions of the leads, and the electrical insulation properties between the electrode foils are increased, the electronic parts including At least one piece of protective paper having a width which is slightly wider than the width of the flat portions of the leads, and the protective paper is adhered to one of the insulating papers in contact with the flat portions of the leads, and is protected One side of the flat portion of the lead, the electronic component further includes another protective paper having a wide width, and the other protective paper is adhered to one of the insulating papers, and the crucible extends to the separating paper Between the two regions in contact with the flat portion of the leads, and thus protect a side surface of each flat plate portion opposite sides of a flat plate portion and the other wire of the wire.

Further, the present invention (claim 4 of the patent application) relates to an electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are interposed with the plurality of electrodes on the electrode foils The insulating paper is rolled up together, and the electrode foils have a plurality of leads respectively fixed thereto, and the leads are composed of a plurality of flat plates each having a predetermined width The component is further provided with a plurality of protective sheets respectively adhered to the insulating paper, and the insulating papers are in contact with at least one side of the flat portions of the leads so as to increase the gap between the electrode foils Electrically insulating property, the electronic component comprising at least two (2) sheets of protective paper having a width which is slightly wider than the width of the flat portions of the leads, and the protective sheets are respectively adhered to the flat portions of the leads On the insulating paper that is in contact, the crucible can protect one side of the flat portion of the lead, and the electronic component further includes another protective sheet having a wide width, and the other protective sheet is adhered to one of the insulating papers, The crucible extends between the two regions where the release paper is in contact with the flat portions of the leads, and thus respectively protects the opposite sides of the flat portion 3b of one lead and one side of the flat portion of the other lead.

Further, the present invention (claim 5 of the patent application) is characterized in that the protective paper has an adhesive which is entirely or partially applied to the adhesive side thereof.

Further, the present invention (claim 6 of the patent application) is characterized in that the protective paper has an adhesive partially applied to the adhesive side thereof, and the shape of the coating is such that the adhesive is directly conveyed toward the protection a direction of the paper and a shape continuously extending toward the width direction of the protective paper at the center; a shape of a step formed by a plurality of intermittent oblique lines extending in the direction in which the protective papers are conveyed; a trapezoidal shape formed by intermittent vertical lines in the direction of the protective paper; two straight lines spaced apart from each other in the width direction and extending in the direction in which the protective sheets are conveyed; extending in the direction in which the protective sheets are conveyed a plurality of intermittent oblique lines formed in a lattice shape; or a plurality of scatters extending in the direction in which the protective paper is conveyed.

Further, the present invention (claim 7 of the patent application) relates to a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper which are interposed in Between the electrode foils, and each of the electrode foils has a lead wire formed by a flat plate portion having a predetermined width and fixed to each of the electrode foils, and the insulating paper system and the flat plate of the lead wires At least one side of the portion is in contact with and has a protective sheet to which a plurality of sheets are adhered so as to increase electrical insulation properties between the electrode foils, the method comprising the steps of: substantially conveying the insulating paper so as to be rolled up In the direction perpendicular to the direction, before the portions of the insulating paper to which the protective paper is adhered are rolled up, respectively, a plurality of protective sheets having a predetermined narrow width are separately supplied to the insulating paper, and the predetermined narrow width is obtained. It is slightly wider than the width of the flat portion of the lead, so that at least two (2) sheets of protective paper having a narrow width can be adhered to the insulating paper, and one of the protective paper sheets is adhered to one of the insulating papers. , And the other protective sheet adhered to the paper based on the paper insulation of all the other sheet, and this sheet is in contact with the covered surface side of the flat plate portion of the lead.

Further, the present invention (article 8 of the patent application) relates to a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper which are interposed in Between the electrode foils, and each of the electrode foils has a lead wire formed by a flat plate portion having a predetermined width and fixed to each of the electrode foils, and the insulating paper system and the flat plate of the lead wires At least one side of the portion is in contact with the protective sheet to which the plurality of sheets are adhered, and the electrical insulation property between the electrode foils is increased, the method comprising the following steps: at different timings, In a direction perpendicular to the direction in which the insulating paper is conveyed so as to be rolled up, a plurality of protective sheets having a predetermined narrow width are separately supplied to the insulating paper before the portions of the insulating paper to which the protective paper is adhered are rolled up. Wherein the predetermined narrow width is slightly wider than the width of the flat portion of the lead, so that a total of four (4) sheets of protective paper having a narrow width can be adhered to the insulating paper, and the first two protective paper sheets are adhered to the One of the sheets of insulating paper and the other two sheets of protective paper are adhered to the other of the insulating sheets, and the insulating sheets are in contact with both side faces of the flat portion of the lead.

Further, the present invention (claim No. 9) relates to a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper which are interposed in Between the electrode foils, and each of the electrode foils has a lead wire formed by a flat plate portion having a predetermined width and fixed to each of the electrode foils, and the insulating paper system and the flat plate of the lead wires At least one side of the portion is in contact with and has a protective sheet to which the plurality of sheets are adhered, and the electrical insulation property between the electrode foils is increased, the method comprising the steps of: at different timings, substantially conveying The insulating paper is supplied in a direction perpendicular to the direction in which the rolled paper is attached, and a plurality of protective sheets having a predetermined narrow width and a wide width are respectively supplied before the portions of the insulating paper to which the protective paper is adhered are rolled up. Protecting the paper to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion of the lead, and the protective paper having a wide width protects the opposite side of the flat portion of the lead A flat side surface portion of a wire, it can be a total of three (3) sheets of paper having a narrow width of the protective insulating paper adhesion Yuzhu, in which two protective sheet having a narrow width and a wide The width of the protective paper is separately adhered to the insulating paper, and the insulating paper is in contact with both side faces of the flat portion of the lead.

Further, the present invention (Application No. 10) relates to a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper which are interposed in Between the electrode foils, each of the electrode foils has a lead formed by a flat portion having a predetermined width and fixed to each of the electrode foils, and the insulating paper and lead wires are At least one side of the flat portion is in contact with the protective paper to which the plurality of sheets are adhered, and the electrical insulation property between the electrode foils is increased, the method comprising the following steps: at different timings, substantially at the same time The insulating paper is supplied in a direction perpendicular to the direction in which the rolled paper is wound, and a plurality of sheets of protective paper having a predetermined narrow width and a wide width are separately supplied before the portions of the insulating paper to which the protective paper is adhered are rolled up. Protecting the paper to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion of the lead, and the protective paper having a wide width protects the opposite side of the flat portion of the lead One side of the flat portion of the other lead, so that a total of two (2) sheets of protective paper having a narrow width can be adhered to the insulating paper, wherein the protective paper having a narrow width is adhered to one side of the flat portion of the lead On the insulating paper that is in contact, another protective paper having a wide width is adhered to the insulating paper that is in contact with both sides of the flat portion of the lead.

[Advantages of the Invention]

According to the present invention, there can be provided an electronic component comprising a component, the component being composed of a plurality of electrode foils, together with a plurality of electrode foils The sheet is wound up together with the insulating paper interposed between the electrode foils, and the electrode foils have a plurality of leads respectively fixed thereto, the leads being composed of a plurality of flat plates each having a predetermined width The component is further provided with a plurality of protective sheets which are respectively adhered to the insulating paper, and the insulating papers are in contact with at least one side of the flat portions of the leads 3 so that the electrodes can be added Electrical insulation between the foils, and the electronic component comprises at least two (2) sheets of protective paper having a predetermined narrow width, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads, in the protective sheets Each of the sheets is adhered to each of the insulating sheets respectively in contact with the flat portions of the leads, and the side of the flat portion of the leads is protected. Therefore, a light-weight and small-sized electronic component can be effectively obtained, so that the amount of protective paper used is reduced by about 75% compared to the conventional protective paper, while achieving the same electrical insulating performance. The ESR of this electronic part has also been significantly reduced.

According to the present invention, there can be provided an electronic component comprising at least four (4) sheets of protective paper having a predetermined narrow width, and the predetermined narrow width is slightly wider than the width of the flat portions of the leads, and two of the protective sheets (2) The sheet is adhered to each of the insulating sheets in contact with the flat portions of the leads, and the side surface and the opposite side of the flat portion of the leads are protected. Therefore, the electronic component thus set has the following effects: the electronic component is light in weight and small in size, and the electrical insulating property is increased to about twice as much as that of the conventional one, in which only one side of the flat portion of the lead projection It is protected and the amount of protective paper is reduced by about 20% compared to the prior art. In addition, the efficacy of electronic components is based on the ESR has been significantly reduced compared to the conventional, where Electrical insulation is only prepared at one side of the flat portion of the lead projections. Incidentally, the amount of protective paper used to protect both side faces of the flat portion of the lead projections is reduced by about 88% compared to the conventional user.

According to the present invention, there can be provided an electronic component comprising at least one sheet of protective paper having a predetermined narrow width which is slightly wider than a width of a flat portion of the lead wires and which is adhered to a flat portion of the lead wires One of the insulating papers in contact with one of the sheets, so that the protective sheet can protect one side of the flat portion of the lead, the electronic part further including another protective sheet having a wide width, and the other piece The protective paper is adhered to one of the insulating papers, and the crucible extends between the two regions where the insulating paper is in contact with the flat portions of the leads, thereby protecting the opposite side of the flat portion of one lead from the flat of the other lead One side of the department. Thus, the electronic component has the effect that one of the leads achieves twice as much electrical insulation as the conventional one, while the other of the leads is the same as the conventional one. In this case, although the amount of protective paper is increased by about 20% compared with the conventional one, an intermediate grade electronic component can be manufactured.

According to the present invention, there can be provided an electronic component comprising at least two (2) sheets of protective paper having a width slightly wider than a width of a flat portion of the leads, and the protective sheets are adhered to the flat portions of the leads On the insulating papers in contact, the protective papers respectively protect one side of the flat portions of the leads, the electronic parts additionally including another protective paper having a wide width, and the other protective paper is adhered to the insulating paper On one of the sheets, the crucible extends between the two regions where the insulating paper is in contact with the flat portions of the leads, thereby protecting the opposite side of the flat portion of one lead from the flat of the other lead One side of the department. Therefore, the electronic component thus set has the following effects: the electronic component is light in weight and small in size, wherein both the positive and negative leads have twice as much electrical insulation as the conventional one, and the amount of protective paper is reduced by 61. %.

According to the present invention, there can be provided an electronic component equipped with a plurality of protective sheets having an adhesive, and the adhesive is partially applied to the coated side of the protective paper. Therefore, the weight of the electronic component can be reduced by reducing the amount of the adhesive while maintaining sufficient adhesion and lowering the ESR.

According to the present invention, there can be provided an electronic component comprising a plurality of protective sheets having an adhesive, the adhesive being partially applied to the coated side of the protective paper, and the shape of the coating is: the adhesive is flat a shape that continuously extends toward the direction of the protective paper and continuously extends toward the width of the protective paper at the center; a step shape formed by a plurality of intermittent oblique lines extending in the direction in which the protective papers are conveyed; a stepped shape formed by intermittent vertical lines extending in the direction in which the protective sheets are conveyed; two straight lines spaced apart from each other in the width direction and extending in the direction in which the protective sheets are conveyed; a lattice shape formed by a plurality of intermittent oblique lines in the direction of the protective paper; or a shape of a plurality of scatters extending in the direction in which the protective paper is conveyed. Therefore, the electronic component thus set has the following effects: the weight of the electronic component is reduced by reducing the adhesive, while maintaining sufficient adhesiveness and reducing the ESR of the electronic component.

According to the present invention, there can be provided a method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of sheets of insulating paper interposed between the electrode foils, and each of the electrode foils Has a lead, It is composed of a flat portion having a predetermined width and is fixed to each of the electrode foils, and the insulating paper is in contact with at least one side of the flat portion of the lead and has a plurality of sheets The protective paper adhered thereto, which increases the electrical insulation properties between the electrode foils, the method comprising the steps of: substantially perpendicular to the direction in which the insulating paper is conveyed so as to be rolled up, Before the portion of the insulating paper to which the protective paper is adhered is rolled up, a plurality of protective sheets having a predetermined narrow width are separately supplied to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion 3b of the lead. Therefore, at least two (2) sheets of protective paper having a narrow width can be adhered to the insulating paper, wherein one piece of protective paper is adhered to one of the insulating papers, and the other protective paper is adhered to the insulating paper. On one piece, the insulating paper is in contact with one side of the flat portion of the lead. Therefore, the method can effectively manufacture a light-weight and small-sized electronic component in which the protective papers are accurately disposed therein while maintaining excellent electrical insulation properties and reducing ESR.

The invention will be described in detail with reference to the embodiments shown in the drawings.

In Fig. 23, the reference numeral 11 denotes an electrolytic capacitor which is one of the examples of the electronic component of the present invention (as in the first aspect of the patent application), and includes a plurality of electrode foils 4 The capacitor element 12, and the electrode foils 4 are rolled up together with a plurality of sheets of insulating paper 5 interposed therebetween, wherein the electrode foil 4 comprises a positive electrode foil 4P and a negative electrode foil 4M, and the insulating paper 5 Including insulating papers 5A and 5B. The capacitor component 12 is additionally provided with a plurality of leads 3 including a positive lead 3P and a negative lead 3M, and each of the leads has a flat plate portion 3b having a predetermined width and fixed to each of the positive electrode foil 4P and the negative electrode foil 4M. The capacitor element 12 is additionally provided with a plurality of protective sheets 6 which are respectively adhered to the insulating papers 5, and the insulating papers 5 are in contact with at least one side of the flat portions 3b of the leads 3 so as to protect the leads 3 and the electrical insulation properties between the electrode foils 4P and 4M can be increased.

The electrolytic capacitor 11 includes a plurality of sheets of protective paper 6 including at least two (2) sheets of protective paper 6A and a protective sheet 6B having a predetermined narrow width, wherein the predetermined narrow width is slightly wider than that of the flat portions 3b of the leads 3. Width, and each of the protective sheets 6 is adhered to each of the insulating sheets 5A and 5B which are respectively in contact with the flat portions 3b of the leads 3 so as to protect the flat portions 3b of the leads 3 One side.

More precisely, according to the present invention, the protective sheets 6A and 6B having a predetermined narrow width are approximately twice as wide as the width of the flat portion 3b of the lead wires 3 shown. More specifically, as shown in Fig. 4, the width W of the protective paper 6 (i.e., the length in the winding direction) is not limited to twice the width of the flat portion 3b of the lead wires 3. As shown in the embodiment of Fig. 4, the narrow width W of the protective sheet 6 is about 7.5 times wider than the width of the flat portion 3b of the leads 3. In fact, the width W evaluated above is extremely narrow compared to the conventional width of the protective paper 6. Incidentally, the length of the protective sheet 6 to be cut is slightly shorter than the width of the electrode foil 4 shown in Fig. 4.

In Fig. 23, the positive lead 3P is fixed to the positive electrode foil 4P, and its flat plate portion 3b can be fixedly attached to the outer side surface of the positive electrode foil 4P, and this includes a puncture needle (including a puncture needle) Not shown in the figure) The device is rolled up. The negative lead 3M is fixed to the negative electrode foil 4M, and its flat plate portion 3b can be fixedly attached to the outer side surface of the negative electrode foil 4M, and this is rolled up by the same means.

The capacitor element 12 has an insulating paper 5B that is wound inside the positive electrode foil 4P and an insulating paper 5A that is wound up outside the positive electrode foil 4P. The capacitor element 12 has an insulating paper 5A rolled up inside the negative electrode foil 4M and an insulating paper 5B rolled up outside the negative electrode foil 4M.

As shown in Fig. 17, the protective sheet 6A for protecting the flat portion 3b of the positive lead 3P is adhered to the outer side of the insulating paper 5A by the adhesive 13. The protective sheet 6B for protecting the flat plate portion 3b of the negative lead 3M is attached to the outer side of the insulating paper 5B by the adhesive 13 to be wound up.

As shown in Fig. 1, the winding end 12a of the capacitor element 12 is fixed to the body of the element by the adhesive 14. Then, the capacitor element 12 is filled with an electrolytic solution (not shown) and housed in an aluminum case (not shown), and the opening of the case is closed with a sealant, and the opening is then cured. . Therefore, the capacitor element 12 is processed into an electrolytic capacitor 11.

Next, the electrolytic capacitor 11 of one example of the electronic component of the present invention (the second item of the patent application) is shown in Fig. 24, and includes an element 12 composed of a plurality of electrode foils 4, and The electrode foils are rolled up together with a plurality of sheets of insulating paper 5 interposed between the electrode foils 4, and the electrode foils 4 comprise a positive electrode foil 4P and a negative electrode foil 4M. The insulating paper 5 includes insulating papers 5A and 5B. The capacitor element 12 is additionally provided with a plurality of leads having a positive lead 3P and a negative lead 3M. 3. Each of the leads includes a flat portion 3b having a predetermined width and fixed to each of the positive and negative electrode foils 4P and 4M. The capacitor element 12 is further provided with a plurality of protective sheets 6 respectively adhered to the insulating papers 5A and 5B, and the insulating papers are in contact with at least one side of the flat portions 3b of the leads 3, so that this can be increased Electrical insulation properties between the electrode foils 4P and 4M.

The electrolytic capacitor 11 includes at least four (4) sheets of protective paper 6 having a predetermined narrow width, and the predetermined narrow width is slightly wider than the width of the flat portions 3b of the leads 3, and the two (2) sheets of protective paper 6 are adhered. To each of the insulating sheets 5A and 5B, the insulating papers are in contact with one side and the opposite side of the flat portion 3b of the leads 3 so as to protect both side faces of the flat portions 3b of the leads 3.

As shown in Fig. 17, the protective paper 6A for protecting the flat portion 3b of the positive lead 3P is adhered to the outside of the rolled insulating paper 5B and to the outside of the insulating paper 5A by the adhesive 13. The protective sheet 6B for protecting the flat portion 3b of the negative lead 3M is attached to the outside of the insulating paper 5A and to the outside of the rolled insulating paper 5B by the adhesive 13.

Next, the electrolytic capacitor 11 of one example of the electronic component of the present invention is shown in Fig. 25 (application patent item 3), which comprises an element 12 composed of a plurality of electrode foils 4, and The electrode foils are rolled up together with a plurality of sheets of insulating paper 5 interposed between the electrode foils 4, and the electrode foils 4 comprise a positive electrode foil 4P and a negative electrode foil 4M. The insulating paper 5 includes insulating papers 5A and 5B. The capacitor element 12 is additionally provided with a plurality of leads having a positive lead 3P and a negative lead 3M. 3. Each of the leads includes a flat portion 3b having a predetermined width and fixed to each of the positive and negative electrode foils 4P and 4M. The capacitor element 12 is further provided with a plurality of sheets of protective paper 6 including protective sheets 6A and 6B which are respectively adhered to the insulating sheets 5A and 5B, and the insulating sheets are attached to the flat portions 3b of the leads 3 When one side is in contact, 俾 can increase the electrical insulation property between the electrode foils 4P and 4M.

The electrolytic capacitor 11 includes at least one sheet of protective paper 6B having a width slightly wider than the width of the flat portion 3b of the lead 3M and adhered to one of the insulating sheets 5A and 5B, and the insulating paper and the lead One side of the flat portion 3b of the 3 is in contact with each other, and the protective sheet 6B can protect one side of the flat portion 3b of the lead 3.

The electrolytic capacitor 11 further includes another sheet of protective paper 6A having a wide width. The other piece of protective paper (i.e., the protective paper 6A) is adhered to the insulating paper 5A, and extends between the two areas where the insulating paper 5A is in contact with the flat portions 3b of the leads 3P and 3M, thereby protecting the flat portion of the lead 3M. The opposite side of 3b and one side of the flat portion 3b of the lead 3P.

Next, the electrolytic capacitor 11 of one example of the electronic component of the present invention is shown in Fig. 26 (application patent item 4), which comprises an element 12 composed of a plurality of electrode foils 4, and The electrode foils are rolled up together with a plurality of sheets of insulating paper 5 interposed between the electrode foils 4, and the electrode foils 4 comprise a positive electrode foil 4P and a negative electrode foil 4M. The insulating paper 5 includes insulating papers 5A and 5B. The capacitor element 12 is further provided with a plurality of leads 3 having a positive lead 3P and a negative lead 3M, and each of the leads includes a flat portion 3b which is fixed Up to each of the positive and negative electrode foils 4P and 4M.

The capacitor element 12 is further provided with a plurality of sheets of protective paper 6 including protective sheets 6A and 6B which are respectively adhered to the insulating sheets 5A and 5B, and the insulating sheets are attached to the flat portions 3b of the leads 3 When one side is in contact, 俾 can increase the electrical insulation property between the electrode foils 4P and 4M.

The electrolytic capacitor 11 includes at least two (2) sheets of protective paper 6B having a width slightly wider than the width of the flat portions 3b of the leads 3P and 3M, and is adhered to the insulating paper 5, and the insulating papers are The flat portions 3b of the leads 3P and 3M are brought into contact so that one side of the flat portions 3b of the leads 3P and 3M can be separately protected.

The electrolytic capacitor 11 additionally includes another sheet of protective paper 6A having a wide width. The other piece of protective paper 6A is adhered to the insulating paper 5A so as to extend between the two regions, and the two regions are in contact with the flat portions 3b of the leads 3P and 3M, respectively. The opposite side faces of the flat plate portion 3b of the lead 3M and one side surface of the flat plate portion 3b of the lead 3P are protected.

Next, the application shape of the adhesive 13 applied to the adhesive application region of the protective paper 6 will be described. According to the invention, the adhesive 13 can be applied over the surface so as to be subsequently adhered to the side of the protective paper 6. However, in order to save the amount of the adhesive and to reduce the thickness of the rolled capacitor element 12 in the radial direction and the weight of the capacitor element 12, the adhesive 13 is partially applied to the adhesion side 6a of the protective paper 6 to adhere thereto. In the agent application region 13a, the coating is in a straight direction extending in the conveying direction of the protective paper 6 as shown in Fig. 17 and at the center of the adhesive side 6a of the protective paper. The shape of the line 13A. Fig. 18 shows a shape of the step 13B constituted by intermittent oblique lines extending in the conveying direction of the protective sheet 6 by a plurality of strips. Fig. 19 shows a form of a step 13C constituted by intermittent vertical lines extending in the conveying direction of the protective paper 6 by a plurality of strips. Fig. 20 shows a form of a straight line 13D which is separated from each other in the width direction by a plurality of strips and which extends in the conveying direction of the protective sheet 6. Fig. 21 shows a form of a lattice 13E composed of intermittent oblique lines extending in the conveying direction of the protective paper 6 by a plurality of strips. Fig. 22 shows a scatter 13F in a plurality of regularly arranged and intermittently extending directions of the protective paper 6.

Next, the apparatus 16 (16A, 16B) for supplying the protective paper will be described with reference to Figs. 3 to 16, and this apparatus is used for a part of the apparatus for constituting the electrolytic capacitor of the present invention by the winding up procedure.

In Fig. 3, the electrolytic capacitor winding device 15 is operated to wind up a pair of electrode foils 4P and 4M in the left direction while supplying a pair of insulating papers 5A and 5B. The component symbol 16 represents a device for supplying the protective paper 6. The protective paper supply device 16 is operated so that the protective paper 6 can be supplied in a direction substantially perpendicular to the direction in which the electrode foil and the insulating paper are conveyed. This protective paper 6 is cut into a random length and adhered to a plurality of regions on the insulating paper 5, which will cover the flat portions 3b of the leads 3 fixed to the electrode foils 4. Fig. 3 shows that the protective paper 6A is adhered to the position of the flat portion 3b of the lead 3P on the insulating paper 5A, and the protective paper 6B is adhered to the position on the insulating paper 5B corresponding to the flat portion 3b of the lead 3M. .

Next, the protective paper supply device 16 (16A, 16B) will be described in detail with reference to Figs. 8 and 9. Providing a pair of protective paper supply devices 16A, 16B, One of them is located at the upper position and the other is located at the lower position because the protective paper 6 must be adhered to the insulating papers 5A and 5B so that the respective protections are separately fixed to the electrodes Leads 3P and 3M on foils 4P and 4M. Incidentally, the same component symbols are given to the two protective paper supply devices 16 (16A, 16B) because the mechanisms are the same, although one of them is in the direction of the protective paper supply direction relative to the other. The system has changed slightly.

The protective paper supply device 16A generally includes: a base portion 18; an arm member 19 fixed to the base portion 18; a reel holder 20 fixed to the arm member 19; and a reel 22 having A protective paper roll 6b wound around it is rotatably mounted on a spool shaft 21, and the spool shaft 21 is carried on the spool support 20. The reel 22 is rotated to supply the protective paper 6 until the protective paper 6 is used up.

In the route through which the protective paper 6 passes, a roller 23; a supply arm member 24; a plurality of supply rollers 25, 26; a cutter holder 28; a guide rail 29; and a protective paper transport platform 30 are provided. Slidably mounted on the guide rail; a pair of guide shafts 31 slidably supporting the cutter holder 28; a pair of springs 32 disposed around the pair of guide shafts so as to be vertically oriented upward The tool holder 28 is advanced; a cylinder 33 for moving the tool up and down; a suction head member 34 for attracting the protection paper 6; an arm member 35 for supporting the suction head member; and a suction head member 34 for moving up and down. a cylinder 35; a cylinder 38 for moving the suction head member 34 on a horizontal surface; a cutter 39 for cutting the protective sheet 6; a guiding platform 40 for guiding the protective sheet 6; The attraction heads 34 cooperate to adhere the protective paper 6 to The platform 41 on the insulating paper 5.

Incidentally, since the protective paper supply device 16B is mechanically identical to the protective paper supply device 16A and is shown with the same reference numerals, the description of the protective paper supply device 16B will be omitted.

The method for manufacturing the electronic component of the present invention (claim 7 of the patent application) is carried out by winding a plurality of electrode foils 4 (4P, 4M) together with a plurality of insulating papers 5 (5A, 5B), which are insulated The paper is interposed between the electrode foils 4, and the electrode foils 4 have a positive electrode foil 4P and a negative electrode foil 4M, and the insulating papers 5 include insulating papers 5A and 5B, and the electrode foils 4P and 4M Each of the sheets has a lead 3 which is composed of a flat portion 3b having a predetermined width and is fixed to the electrode foil; this method additionally adheres the protective sheets 6 to the insulating paper 5, respectively. The insulating paper is in contact with at least one side of the flat portion 3b of the lead 3 so as to increase the electrical insulating property between the electrode foils 4 (4P, 4M); the method comprises the steps of: substantially conveying the insulating paper In a direction in which the direction in which the winding is wound is perpendicular, before the portions of the insulating paper to which the protective paper is adhered are rolled up, the plurality of sheets are respectively supplied with a predetermined narrow width which is slightly wider than the width of the flat portion 3b of the lead 3. Protecting the paper 6 to the insulating paper 5, so that a total of at least two (2) sheets can be adhered A protective paper of narrow width, wherein one piece of protective paper is adhered to one of the insulating papers, and the other piece of protective paper is adhered to the other of the insulating papers, and the other piece of the insulating paper and the lead 3 One side of the flat plate portion 3b is in contact with each other.

The method for manufacturing the electronic component of the present invention (article 8 of the patent application) is by using a plurality of electrode foils 4 (4P, 4M) together with a plurality of films The edge paper 5 (5A, 5B) is rolled up together, and the insulating paper is interposed between the electrode foils 4, and the electrode foils 4 have a positive electrode foil 4P and a negative electrode foil 4M, and the insulating papers 5 Including insulating papers 5A and 5B, each of the electrode foils 4P and 4M has a lead 3 composed of a flat portion 3b having a predetermined width and fixed to the electrode foil; The protective paper 6 is adhered to the insulating papers 5, respectively, and the insulating paper is in contact with at least one side of the flat portion 3b of the lead 3, which increases the electrical insulation between the electrode foils 4 (4P, 4M) Performance; the method comprises the steps of: at a different timing, in a direction substantially perpendicular to a direction in which the insulating paper is conveyed so as to be rolled up, before the portion of the insulating paper to which the protective paper is adhered is rolled up, First, a plurality of sheets of protective paper 6 having a predetermined narrow width which is slightly wider than the width of the flat portion 3b of the lead 3 are supplied separately to the insulating paper 5, so that a total of four (4) sheets of protective paper can be adhered, wherein the first two sheets of protective paper Adhered to one of the insulating papers 5A and 5B, and the other two protective papers are stuck It is attached to the other of the insulating papers 5A and 5B which are in contact with both side faces of the flat portion 3b of the lead 3.

A method for manufacturing an electronic component of the present invention (Patent No. 9) is by winding a plurality of electrode foils 4 (4P, 4M) together with a plurality of insulating papers 5 (5A, 5B), which are insulated The paper is interposed between the electrode foils 4, and the electrode foils 4 have a positive electrode foil 4P and a negative electrode foil 4M, and the insulating papers 5 include insulating papers 5A and 5B, and the electrode foils 4P and 4M Each of the sheets has a lead 3 which is composed of a flat portion 3b having a predetermined width and is fixed to the electrode foil; this method additionally adheres the protective sheets 6 to the insulating paper 5, respectively. These insulating paper systems Contacting at least one side of the flat portion 3b of the lead 3 to increase the electrical insulation property between the electrode foils 4 (4P, 4M); the method comprises the steps of: at different timings, substantially The insulating paper is supplied in a direction perpendicular to the direction in which the rolled paper is adhered, and the portions of the insulating paper to which the protective paper is adhered are respectively supplied to the plurality of sheets to have a width slightly wider than that of the flat portion 3b of the lead 3. The protective paper 6B having a narrow width and a protective paper 6A having a wide width and protecting the opposite side of the flat portion 3b of the lead 3P and the one side of the flat portion 3b of the lead 3M are attached to the insulating paper 5, so that a total of three ( 3) The sheet protective paper is adhered to the insulating paper 5, wherein two sheets of protective paper 6B having a narrow width and one sheet of protective paper 6A having a wide width are adhered to the both sides of the flat portion 3b of the leads 3. Insulating paper 5A and 5B.

The method for manufacturing the electronic component of the present invention (Patent No. 10) is by winding a plurality of electrode foils 4 (4P, 4M) together with a plurality of insulating papers 5 (5A, 5B), which are insulated The paper is interposed between the electrode foils 4, and the electrode foils 4 have a positive electrode foil 4P and a negative electrode foil 4M, and the insulating papers 5 include insulating papers 5A and 5B, and the electrode foils 4P and 4M Each of the sheets has a lead 3 which is composed of a flat portion 3b having a predetermined width and is fixed to the electrode foil; this method additionally adheres the protective sheets 6 to the insulating paper 5, respectively. The insulating paper is in contact with at least one side of the flat portion 3b of the lead 3 so as to increase the electrical insulation property between the electrode foils 4 (4P, 4M); the method comprises the following steps: at different timings, The insulating paper is adhered to the protection in a direction substantially perpendicular to the direction in which the insulating paper is conveyed so as to be rolled up. Before the portions of the paper are rolled up, the protective sheets 6B having a predetermined narrow width which is slightly wider than the width of the flat portion 3b of the lead 3 and the relative portion of the flat portion 3b having a wide width and protecting the lead 3P are separately supplied. The side is protected from the side of the flat portion 3b of the lead 3M to the insulating paper 5, so that a total of two (2) sheets of the protective paper can be adhered to the insulating paper 5, wherein the protective paper 6A having a wide width is Adhered to the insulating paper 5A in contact with one side of the flat portion 3b of the lead 3, and the other protective sheet 6B having a narrow width is adhered to the insulating paper 5 which is in contact with both side faces of the flat portion 3b of the lead 3P. on.

The invention is a combination of components as described above. The operation is as described below.

Referring to Figures 8 to 16, the apparatus 16 for supplying the protective sheet 6 is in a preliminary state in which the attraction head member 34 is parked at the leftmost position in Fig. 9 and is located directly above the protective paper adhering platform 41. At the same time, it is moved there by the suction head supply cylinder 38 together with the suction head cylinder 36 and the attraction arm member 35. In this case, as shown in FIGS. 3 and 8, the two electrode foils 4P and 4M and the two sheets of insulating paper 5A and 5B are respectively transported by the winding device 15 with respect to the protective paper adhering platform 41, the electrodes. The foils 4P and 4M have the leads 3P and 3M respectively attached thereto, and the insulating papers are inserted between the electrode foils 4P and 4M, and the protective paper is cut at an arbitrary length (Fig. 4) ) are respectively attracted to the lower sides of the attraction heads 34.

In Fig. 10, the supply device 16 is in an adhered state in which the suction head cylinder 36 is operated to attract the arm member 35 and the attraction head member 34. Move down to the adhesion platform 41 in the direction of the arrow. Then, the protective paper 6A attracted to the attraction head member 34 is adhered to the portion of the insulating paper 5 which is in contact with the lead 3 which has been attached to the electrode foil 4. More precisely, at the upper attraction head member 34, the protective paper 6A is adhered to the insulating paper 5A (as shown in Fig. 3); and at the lower suction head member 34, the protective paper 6B is adhered to the insulating paper 5B. Upper (as shown in Figure 3). Next, the attracting head members 34 release the protective sheets 6, respectively. Figure 8 shows a pair of devices 16. The lower supply device 16B and the adhesion platform 41 are disposed above the paper winding direction, and the upper supply device 16A and the adhesion platform 41 are disposed above the paper winding direction. If the pair of adhesive platforms are disposed at the same position in the winding direction, the protective sheets 6A and 6B will not be simultaneously adhered to the insulating papers located at the adhesion platforms. Fig. 3 shows an example in which the protective paper 6A is supplied shortly before the lead 3M reaches the lower adhesion stage 41, and the protective paper 6B is adhered to the insulating paper 5B and rolled up. At the same time, the protective paper 6A is supplied shortly before the lead 3P reaches the lower adhesion stage 41, and the protective paper 6A is adhered to the insulating paper 5A.

In Fig. 11, the supply device 16 is in a state in which the paper winding device 15 can wind up the paper, wherein the suction head cylinder 36 is operated to move the attraction arm member 35 and the attraction head member 34 away from the adhesion platform. The arrow B direction of 41 is moved upward so that the paper winding device 15 can wind up a predetermined amount of the electrode foil 4 and the insulating paper 5 as shown in FIG.

According to the present invention, the protective paper 6 is supplied onto the insulating paper 5 in a direction substantially perpendicular to the direction in which the electrode foil 4 and the insulating paper 5 are fed up, and the protective paper 6 is on the electrode foil 4 and the insulating paper. 5 before being rolled up First rolled up.

In Fig. 12, the supply unit 16 is in a state in which the protective paper 6 is supplied, wherein the suction head supply cylinder 38 is operated so that the suction head cylinder 36 can be moved in the rightward direction (as indicated by the arrow C). The arm member 35 and the attraction head member 34 are attracted. Next, the attraction head member 34 is parked directly above the guide platform 40. Subsequently, the supply device 16 is operated so that the upper and lower rollers 26 can be paired, thereby clamping and moving the protective paper in the left direction (as indicated by the arrow D). Therefore, a predetermined amount of the protective paper 6 is conveyed so that any length of the protective paper 6 can be taken off for covering the flat portion 3b of the lead 3. As shown, the protective sheet 6A is moved until the free end 6c reaches a position where the protective sheet is attracted by the attracting head member 34. Therefore, the protective paper is supplied as it is taken out from the paper roll 6b, and guided by the guide rollers 23 and 25 while the spool 22 is being rotated.

In Fig. 13, the supply unit 16 is in a state of attracting a protective sheet, wherein the protective sheet has a length region which is superposed on the attraction head member 34 and is attracted thereto by a vacuum pulling force.

In Fig. 14, the supply device 16 is in a state of being clamped and cut, in which the guide platform 40 is moved upward and the protective sheet 6A is sandwiched from the lower side. Subsequently, the cutter operating cylinder 33 is operated to move the cutter 39 downward in the direction of the arrow E together with the cutter holder 28 against the action of the compression springs 36, thereby cutting the protective sheet 6A.

In Fig. 15, the supply device 16 is in a state in which the protective sheet 6A is supplied, in which the suction head member is supplied to the cylindrical body 38 so that the attraction arm member 35 and the suction head can be moved in the leftward direction (as indicated by an arrow E). Piece 34, and The cut protective paper 6A is attracted to the attraction head member 34. Therefore, the protective paper 6A together with the attraction head member 34 is conveyed to the protective paper adhering platform 41.

In Fig. 16, the supply device 16 is in a state in which the cutter 39 is released, wherein the cutter operating cylinder 33 does not function, and the cutters 39 are moved upward in the arrow direction G by the compression springs 32. Therefore, the cutter 39 is loosened while the suction head member 34 together with the cut amount of the protective paper 6A is positioned directly above the protective paper adhering platform 41. Therefore, a protective paper supply cycle is completed, and the supply device 16 is returned to the preliminary state as shown in Fig. 9.

In Figs. 17 to 22, according to the present invention, the adhesive 13 is partially applied to the protective paper 6 in a different form instead of being coated on the entire surface of the protective paper 6. Therefore, the amount of the adhesive 13 is remarkably saved, and at the same time, sufficient adhesiveness can be obtained, and an increase in ESR (equivalent series resistance) can be avoided.

Subsequently, the characteristics of the electrolytic capacitor 11 which is one of the examples of the electronic parts of the present invention will be described with reference to Figs. 23 to 26. With regard to the embodiment shown in Fig. 23 (i.e., electrolytic capacitor 11), a sheet of protective paper 6A having a width slightly wider than the width of the flat portion 3b of the positive lead 3P is adhered to the insulating paper 5A so as to protect the positive The flat portion 3b of the lead 3P. On the other hand, a sheet of protective paper 6B having a width slightly wider than the width of the flat portion 3b of the negative lead 3M is adhered to the insulating paper 5B so that the flat portion 3b of the negative lead 3M can be protected. The lengths of the protective sheets 6A and 6B in the winding direction correspond to those supplied by the paper supply unit 16 as shown in Fig. 8. The width of the paper protectors 6A and 6B (Fig. 4). Since the electrolytic capacitor winding device 15 is set to confirm the positions of the leads 3, so that the paper supply device 16 can be separately supplied with narrow widths before being wound up on the insulating paper by the areas where the leads are adhered. The paper 6 is protected onto the insulating paper 5, so that the paper supply device 16 can supply the protective paper 6 having a narrow width at a good timing to position the flat portion 3b of the lead 3 at the center of the protective paper having a narrow width.

Therefore, two sheets of protective paper 6 having a narrow width can be reasonably adhered to the two sheets of insulating paper, respectively, and one side of the flat portion 3b of the leads can be sufficiently protected. As a result, the amount of the protective sheet 6 can be saved as compared with the conventional embodiment shown in Fig. 27, and the diameter of the capacitor element 12 can be reduced, and the increase in ESR can be avoided. Therefore, the electrolytic capacitor 11 excellent in electrical properties can be obtained.

Regarding the embodiment of the electrolytic capacitor 11 shown in Fig. 24, the electrolytic capacitor 11 has two sheets of protective paper 6 in addition to the protective sheets of the capacitor element 12 shown in Fig. 23. That is, the same protective paper 6A having a narrow width is adhered to the insulating paper 5B which is in contact with the opposite side faces of the flat portion 3b of the positive lead 3P, and the same protective paper 6B having a narrow width is adhered to the negative lead 3M. The opposite side of the flat portion 3b is in contact with the insulating paper 5A. Thus, two sheets of protective paper having a narrow width are used for one of the flat portions 3b of the lead wires 3 so that both side faces of the flat plate portion 3b of the lead wires 3 can be protected. Although the proportion of the protective paper in the capacitor element 12 is small, both side faces of the flat portion 3b of the lead 3 can be sufficiently protected, and the diameter of the capacitor element 12 and its ESR are prevented from being increased. Therefore, it is available in electrical properties Excellent electrolytic capacitor 11.

Regarding the embodiment of the electrolytic capacitor 11 shown in Fig. 25, a protective sheet 6A having a wide width is adhered to the insulating paper 5A while extending between the flat portions 3b of the leads 3 so that the positive lead 3P can be protected. One side of the flat portion 3b and the opposite side of the flat portion 3b of the negative lead 3M, and one sheet of protective paper 6B having a narrow width is adhered to the insulating paper 5B so that only one of the flat portions 3b of the negative lead 3M can be protected. side.

It is to be admitted that, similarly to the conventional capacitor element, the proportion of the protective paper in the capacitor element 12 is increased by the protective paper 6A having a wide width. However, in the manufacturing process, it is reasonable to supply one sheet of protective paper 6A having a wide width and another sheet of protective paper 6B having a narrow width just before the capacitor element 12 is wound up. Thus, one side of the flat portion 3b of the positive lead 3P and both sides of the flat portion 3b of the negative lead 3M can be protected by three sheets of protective paper without significantly increasing the ESR. Therefore, the electrolytic capacitor 11 excellent in electrical properties can be obtained.

Regarding the embodiment of the electrolytic capacitor 11 shown in Fig. 26, which is similar to the case shown in Fig. 25, a sheet of protective paper 6A having a wide width is stretched between the flat portions 3b of the leads 3 while being Adhered to the insulating paper 5A so as to protect one side of the flat portion 3b of the positive lead 3P and the opposite side of the flat portion 3b of the negative lead 3M, and a protective sheet 6B having a narrow width is adhered to the insulating paper 5B. In order to protect the opposite side faces of the flat portion 3b of the positive lead 3P, and another protective sheet 6B having a narrow width is adhered to the insulating paper 5B so that one side of the flat portion 3b of the positive lead 3M can be protected.

It is to be admitted that, similarly to the conventional capacitor element, the proportion of the protective paper in the capacitor element 12 is increased by the protective paper 6A having a wide width. However, in the manufacturing process, it is reasonable to supply a protective paper 6A having a wide width and another protective paper 6B having a narrow width just before the capacitor element 12 is wound up. Thus, both side faces of the flat portion 3b of the positive lead 3P and both side faces of the flat portion 3b of the negative lead 3M can be protected by three sheets of protective paper without significantly increasing the ESR. Therefore, the electrolytic capacitor 11 excellent in electrical properties can be obtained.

The present invention has been described with reference to the embodiments of the electrolytic capacitor 11 as an electronic component. However, the present invention is obviously not limited to the electrolytic capacitor 11, but includes any type of capacitor, and if the capacitors are of the type of a roll-up type, such as a film capacitor and the like.

The invention described herein is obviously capable of being varied in many ways. Such variations are considered to be within the scope of the invention, and all such modifications are intended to be included within the scope of the appended claims.

1‧‧‧Electrical capacitors as an example of an electronic component example

2‧‧‧ components

3‧‧‧ lead

3a‧‧‧ convex

3b‧‧‧ Flat section

3c‧‧‧Foil fixing edge

3d‧‧‧ puncture hole

3P‧‧‧ Leading

3M‧‧‧Negative lead

4‧‧‧electrode foil

4P‧‧‧ positive electrode foil

4M‧‧‧Negative electrode foil

5‧‧‧Insulation paper

5A‧‧‧Insulation paper

5B‧‧‧Insulation paper

6‧‧‧Protection paper

6a‧‧‧Adhesive side

6b‧‧‧Protection paper roll

6c‧‧‧Free end

6A‧‧‧Protection paper

6B‧‧‧protection paper

11‧‧‧Electrical capacitors in one of the electronic component examples

12‧‧‧ components

12a‧‧‧ Volume

13‧‧‧Adhesive

13a‧‧‧Adhesive coated side

13A‧‧‧Line at the center of the width direction

13B‧‧‧Steps consisting of intermittent oblique lines extending in the direction of supply

13C‧‧‧Steps consisting of intermittent perpendiculars extending in the direction of supply

13D‧‧‧A pair of straight lines spaced apart from each other in the width direction

13E‧‧‧ Grid consisting of intermittent diagonal lines extending in the direction of supply

13F‧‧‧Multiple rules arranged intermittently and extending in the width direction

14‧‧‧Adhesive tape

15‧‧‧Device for rolling up electrolytic capacitors

16‧‧‧Device for supplying protective paper

16A‧‧‧Device for supplying protective paper

16B‧‧‧Device for supplying protective paper

18‧‧‧ base

19‧‧‧ Arms

20‧‧‧Roll bracket

21‧‧‧Reel shaft

22‧‧‧ reel

23‧‧‧Guide Roller

24‧‧‧Supply arm

25‧‧‧Guide Roller

26‧‧‧Supply roller

28‧‧‧Tool holder

29‧‧‧Guided track

30‧‧‧A platform for the supply of protective paper

31‧‧‧Guide axis

32‧‧‧Compression spring

33‧‧‧Cylinder for moving the tool up and down

34‧‧‧Attracting the first piece

35‧‧‧Attracting arm

36‧‧‧Attracting the head cylinder

38‧‧‧Attracting the first piece

39‧‧‧Tools

40‧‧‧Guide platform

41‧‧‧Protected paper adhesion platform

A‧‧‧ arrow

B‧‧‧ arrow

C‧‧‧ arrow

D‧‧‧ arrow

E‧‧‧ arrow

F‧‧‧ arrow

G‧‧‧ arrow

Length of L‧‧‧ cut protective paper (width in the direction of rolling)

W‧‧‧Protection paper width (length in the direction of rolling)

Figures 1 through 26 are diagrams relating to embodiments of the invention.

Fig. 1 is a perspective view of an electrolytic capacitor which is shown as one of the examples of the electronic component of the present invention.

Fig. 2 is a perspective view of the electrolytic capacitor partially cut away to show its internal structure.

Figure 3 is a perspective view of the electrode foil and the insulating paper, and the electrode foil and the insulating paper are conveyed so as to protect the paper in the direction of conveying the insulating paper. When it is conveyed to the insulating paper in the vertical direction, it can be rolled up together.

Fig. 4 is a plan view of an insulating paper having a protective paper adhered thereto and an electrode foil having a lead wire fixed thereto, wherein the electrode foil is protected by a protective paper adhered to the insulating paper.

Figure 5 is a side view of the lead, partially present in a vertical cross-section to show the flat portion of the lead protected by the protective paper.

Figure 6 is a side view of the lead wire, and the lead wire is partially taken in a vertical section to show the flat portion of the lead wire protected by the insulating paper, the insulating paper having the protective paper adhered thereto by the adhesive, and The adhesive is applied to the entire surface of the protective paper.

Figure 7 is a side view of the lead wire, and the lead wire is partially taken in a vertical section to show the flat portion of the lead wire protected by the insulating paper, the insulating paper having the protective paper adhered thereto by the adhesive, and The adhesive is applied to the surface of the protective paper portion.

Figure 8 is a perspective view of a device for supplying protective paper.

Figures 9 through 16 show various states for supplying protective paper.

Figure 9 is a side view of a necessary portion of the protective paper supply device showing the preliminary state of the supply device.

Fig. 10 is a side view of a necessary portion of the protective paper supply device, showing a state in which the supply device is adhering the protective paper to the insulating paper.

Fig. 11 is a side view of a necessary portion of the protective paper supply device, showing a state in which the electrode foil and the insulating paper can be wound up.

Fig. 12 is a side view of a necessary portion of the protective paper supply device, showing a state for supplying the protective paper.

Fig. 13 is a side view of a necessary portion of the protective paper supply device, showing a state for starting the adsorption of the protective paper.

Fig. 14 is a side view of a necessary portion of the protective paper supply device, showing a state for cutting and clamping the protective paper.

Fig. 15 is a side view of a necessary portion of the protective paper supply device, showing a state for supplying the protective paper.

Fig. 16 is a side view of a necessary portion of the protective paper supply device, showing a state for releasing a cutter.

Figures 17 to 22 show a protective paper having an adhesive applied thereto in a different form.

Fig. 17 is a plan view of a protective sheet having an adhesive applied thereto, and the coating form is a line extending continuously in the supply direction of the protective paper and at the center of the width direction of the protective paper.

Figure 18 is a plan view of a protective paper having an adhesive applied thereto in a form in which a plurality of intermittent oblique lines extending in the supply direction of the protective paper are formed.

Figure 19 is a plan view of a protective sheet having an adhesive applied thereto in a form in which a plurality of intermittent vertical lines extending in the supply direction of the protective paper are formed.

Fig. 20 is a plan view of a protective sheet having an adhesive applied thereto, and the coating is formed in two straight lines spaced apart from each other in the width direction and extending in the direction in which the protective sheets are conveyed.

Figure 21 is a plan view of a protective paper having an adhesive applied thereto, and the form of the coating is extended by a plurality of strips on the supply side of the protective paper. A grid of upwardly slanted diagonal lines.

Figure 22 is a plan view of a protective sheet having an adhesive applied thereto, and the form of application is in the form of a plurality of scatters extending in the supply direction of the protective paper.

Figures 23 to 26 show side views of the electrolytic capacitor element, which is presented in a vertical section and has a protective paper that is not adhered thereto in the same state.

Figure 23 is a side view of an electrolytic capacitor element including two (2) sheets of protective paper adhered thereto and having a narrow width such that each protective sheet protects each of the positive and negative leads One side of the flat portion.

Figure 24 is a side view of an electrolytic capacitor element, and the element includes four (4) sheets of protective paper adhered thereto and having a narrow width so that the protective sheets can respectively protect the flat portions of the positive and negative leads Both sides.

Figure 25 is a side view of an electrolytic capacitor element including a sheet of protective paper adhered thereto and having a wide width so as to protect one side of the flat portion of the positive and negative leads, respectively; and including a sheet adhered thereto The protective paper has a narrow width thereon so that only the flat portion of the negative lead can be protected.

Figure 26 is a side view of an electrolytic capacitor element including a sheet of protective paper adhered thereto and having a wide width so as to protect one side of the flat portion of the positive and negative leads, respectively; and including two sheets to be adhered A protective paper having a narrow width thereon so as to protect the flat portions of the positive and negative leads, respectively.

Figure 27 is a side view of a conventional electrolytic capacitor element in which a The sheet has a wide width of protective paper so as to extend between the flat portions of the positive and negative leads, thereby protecting the flat portion of the positive and negative leads

3‧‧‧ lead

3b‧‧‧ Flat section

3P‧‧‧ Leading

3M‧‧‧Negative lead

4‧‧‧electrode foil

4P‧‧‧ positive electrode foil

4M‧‧‧Negative electrode foil

5‧‧‧Insulation paper

5A‧‧‧Insulation paper

5B‧‧‧Insulation paper

6‧‧‧Protection paper

6A‧‧‧Protection paper

6B‧‧‧protection paper

11‧‧‧Electrical capacitors in one of the electronic component examples

12‧‧‧ components

Claims (10)

An electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are rolled up together with a plurality of sheets of insulating paper interposed between the electrode foils, and the electrode foils have a plurality of lead wires respectively fixed to the lead wires, wherein the lead wires are composed of a plurality of flat plate portions each having a predetermined width, and the components are further provided with at least one of a plurality of flat sheets adhered to the flat plate portions of the lead wires The protective paper on the insulating paper in contact with the side surface may increase the electrical insulation property between the electrode foils, the electronic component comprising at least two sheets of protective paper having a predetermined narrow width, and the predetermined narrow width is slightly wider than the leads The width of the flat portions, each of the protective sheets being adhered to each of the insulating sheets respectively contacting the flat portions of the leads so as to protect the flat sheets of the leads One side of the department. An electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are rolled up together with a plurality of sheets of insulating paper interposed between the electrode foils, and the electrode foils have a plurality of lead wires respectively fixed to the lead wires, wherein the lead wires are composed of a plurality of flat plate portions each having a predetermined width, and the components are further provided with at least one of a plurality of flat sheets adhered to the flat plate portions of the lead wires a protective paper on the insulating paper that is in contact with the side surface to increase electrical insulation properties between the electrode foils, the electronic component comprising at least four sheets of protective paper having a predetermined narrow width, the predetermined narrow width being slightly wider than the leads The width of the flat portions, two sheets of the protective paper are adhered to each of the insulating papers in contact with the flat portions of the leads so as to protect the leads One side and opposite sides of the flat portions. An electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are rolled up together with a plurality of sheets of insulating paper interposed between the electrode foils, and the electrode foils have a plurality of leads respectively fixed to the leads, and the leads are composed of a plurality of flat portions each having a predetermined width, and the members are additionally provided with a plurality of sheets to be respectively adhered to the flat portions of the leads a protective paper on the insulating paper contacting at least one side surface to increase electrical insulation properties between the electrode foils, the electronic component comprising at least one sheet of protective paper having a narrow width, the narrow width of the protective paper being slightly wider than the The width of the flat portions of the lead wires, and the protective paper is adhered to the insulating papers in contact with the flat portions of the lead wires in such a manner that they protect one side of the flat portions of the leads In one piece, the electronic component further includes another protective paper having a wide width wider than the narrow width of the protective paper, and the wide-width protective paper is adhered to one of the insulating papers. Serve to extend between two respective regions of the insulating sheet in contact with the flat portion of such lead or such, and thus protect the flat plate portion opposing a side surface portion of a side panel and the other lead of the lead. An electronic component comprising an element composed of a plurality of electrode foils, and the electrode foils are rolled up together with a plurality of sheets of insulating paper interposed between the electrode foils, and the electrode foils have a plurality of leads respectively fixed to the lead wires, wherein the lead wires are composed of a plurality of flat portions each having a predetermined width, and the members are further provided with a plurality of sheets which are respectively adhered to at least the flat portion of the lead wires One side that is in contact with one side Protective paper on insulating paper to increase electrical insulation between the electrode foils, the electronic component comprising at least two sheets of narrow width protective paper, the at least two narrow width protective papers being slightly wider than the leads The width of the flat portions, and the narrow width of the protective paper is adhered to the insulating papers in contact with the flat portions of the leads, and the sides of the flat portions of the leads are respectively protected. The part additionally includes another piece of protective paper having a wide width wider than the narrow width of the protective paper, and the wide width of the protective paper is adhered to one of the insulating papers, the crucible extending from the insulating paper and the leads respectively Between the two regions where the flat portions are in contact, and thus the opposite sides of the flat portion of one lead and one side of the flat portion of the other lead are protected. The electronic component of claim 1, wherein the protective paper has an adhesive side having an adhesive applied to the adhesive side thereof entirely or partially. The electronic component of claim 5, wherein the protective paper has an adhesive partially applied to the adhesive side thereof, and the coated shape is such that the adhesive is in the direction of transporting the protective paper. And a shape continuously extending straight at the center of the width direction of the protective paper; a step shape formed by a plurality of intermittent oblique lines extending in a direction in which the protective paper is conveyed; a stepped shape formed by intermittent vertical lines in the direction of the protective paper; two straight lines spaced apart from each other in the width direction and extending in the direction in which the protective papers are conveyed; extending from the protective paper a lattice shape formed by a plurality of intermittent oblique lines in the direction; or extending in the direction of transporting the protective paper A plurality of scatters on the top. A method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of insulating papers interposed between the electrode foils, and each of the electrode foils has a lead wire It is composed of a flat portion having a predetermined width and is fixed to each of the electrode foils, and the insulating paper is in contact with at least one side of the flat portion of the lead and has a plurality of a protective sheet to which the sheet is adhered so as to increase electrical insulation between the electrode foils, the method comprising the steps of: in a direction perpendicular to the direction of transporting the insulating paper to be rolled up, Before the portion of the insulating paper to which the protective paper is adhered is rolled up, a plurality of protective sheets having a predetermined narrow width are respectively supplied to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion of the lead Therefore, at least two sheets of protective paper having a narrow width may be adhered to the insulating paper, wherein one piece of protective paper is adhered to one of the insulating sheets, and another piece of protective paper is adhered to the sheets The upper edge of the other sheet of paper, and such an insulating sheet in contact with the side surface of the flat plate portion of the lead. A method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of insulating papers interposed between the electrode foils, and each of the electrode foils has a lead wire It is composed of a flat portion having a predetermined width and is fixed to each of the electrode foils, and the insulating paper is in contact with at least one side of the flat portion of the lead and has a plurality of sheets The protective paper adhered thereto can increase the electrical insulation property between the electrode foils, and the method includes the following steps Step: in a direction perpendicular to the direction of transporting the insulating paper to be rolled up, before the portions of the insulating paper to which the protective paper is adhered are rolled up, respectively, the plurality of sheets are respectively protected with a predetermined narrow width Paper to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion of the lead, so that a total of four sheets of protective paper having a narrow width can be adhered to the insulating paper, the first two sheets of protective paper Attached to one of the sheets of insulating paper, and the other two sheets of protective paper are adhered to the other of the sheets of insulating paper, and the insulating sheets are in contact with both sides of the flat portion of the lead. A method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of insulating papers interposed between the electrode foils, and each of the electrode foils has a lead wire It is composed of a flat portion having a predetermined width and is fixed to each of the electrode foils, and the insulating paper is in contact with at least one side of the flat portion of the lead and has a plurality of sheets a protective paper adhered thereto so as to increase the electrical insulation property between the electrode foils, the method comprising the steps of: at different timings, in a direction perpendicular to the direction in which the insulating paper to be rolled up is conveyed Before the portions of the insulating paper to which the protective paper is adhered are rolled up, a plurality of protective sheets having a predetermined narrow width and a wide protective sheet having a protective paper having a width narrower than a predetermined narrow width are separately supplied. To the insulating paper, the predetermined narrow width is slightly wider than the width of the flat portion of the lead, the predetermined narrow width of the protective paper and the wide-width protective paper protecting the flat portion of the lead A side panel of the other side surface portion of the lead wire, wherein the two slots having a predetermined A narrow width of protective paper is adhered to the insulating paper in contact with one side of the flat portion of the lead, and a protective paper having a wide width is adhered to contact with both sides of the flat portion of the lead On the insulating paper. A method for manufacturing an electronic component by winding a plurality of electrode foils together with a plurality of insulating papers interposed between the electrode foils, and each of the electrode foils has a lead wire It is composed of a flat portion having a predetermined width and is fixed to each of the electrode foils, and the insulating paper is in contact with at least one side of the flat portion of the lead and has a plurality of a protective sheet to which the sheet is adhered so as to increase the electrical insulation properties between the electrode foils, the method comprising the steps of: at different times, perpendicular to the direction of transporting the insulating paper to be rolled up In the direction, before the portions of the insulating paper to which the protective paper is adhered are rolled up, a plurality of protective sheets having a predetermined narrow width and a wide width of a protective paper having a width narrower than a predetermined narrow width are separately supplied. Protecting the paper to the insulating paper, and the predetermined narrow width is slightly wider than the width of the flat portion of the lead, the predetermined narrow width of the protective paper and the wide-width protective paper protecting the lead plate a side surface of the flat portion of the other lead, wherein the protective paper having a narrow width is adhered to the insulating paper in contact with a side of the flat portion of the lead, and the other has a wide width protection The paper is then adhered to the insulating paper that is in contact with both sides of the flat portion of the lead.