WO2010116668A1 - Electrolytic capacitor and manufacturing method therefor - Google Patents
Electrolytic capacitor and manufacturing method therefor Download PDFInfo
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- WO2010116668A1 WO2010116668A1 PCT/JP2010/002262 JP2010002262W WO2010116668A1 WO 2010116668 A1 WO2010116668 A1 WO 2010116668A1 JP 2010002262 W JP2010002262 W JP 2010002262W WO 2010116668 A1 WO2010116668 A1 WO 2010116668A1
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- electrode foil
- lead terminal
- burr
- hole
- electrolytic capacitor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/145—Liquid electrolytic capacitors
Definitions
- the present invention relates to an electrolytic capacitor and a manufacturing method thereof, and more particularly to a connection structure and a connection method of an electrode foil and a lead terminal of the electrolytic capacitor.
- the electrode foil and the lead terminal of the electrolytic capacitor are overlapped, the stitch needle is penetrated from the lead terminal side, and the burr of the electrode foil and the lead terminal is formed on the back side of the electrode foil. Further, the burr was pressed to connect the electrode foil and the lead terminal.
- the lead terminal is overlaid on the electrode foil in which holes are provided in advance, the stitch needle is penetrated from the lead terminal side, and a burr of the lead terminal is formed on the back side of the electrode foil.
- Patent Document 1 for connecting a lead terminal to a lead terminal, and through holes in which four corners are respectively directed in the longitudinal direction and the width direction of the electrode foil are provided in the electrode foil, and the lead terminal is provided on each hole.
- Patent Document 2 Japanese Patent Document 2
- the electrolytic capacitor of the present invention has a lead terminal overlaid on an electrode foil in which a through hole is formed, penetrates a stitch needle from the lead terminal side, and burrs and lead terminals on the back side of the electrode foil.
- the burr of the electrode foil is formed, and the burr is pressed to connect the electrode foil and the lead terminal, the burr of the electrode foil and the burr of the lead terminal are formed on the back side of the electrode foil and pressed.
- a connecting portion formed by pressing the burr of the lead terminal formed on the back side of the electrode foil.
- the electrode foil and the lead terminal are connected by the connecting portion where the burr of the lead terminal formed on the back side of the electrode foil bites into the electrode foil by pressing, but a part of the through hole of the electrode foil is further stitched by the needle.
- a burr is formed together with the lead terminal, and the burr of the electrode foil and the burr of the lead terminal are integrally formed by pressing to form a connection portion, so that the connection strength between the electrode foil and the lead terminal can be further increased.
- the stress on the electrode foil by the stitch needle is only a part of the through hole of the electrode foil, and the occurrence of cracks and the like in the electrode foil can be suppressed.
- the electrolytic capacitor manufacturing method of the present invention is such that a lead terminal is stacked on an electrode foil having a through hole, a stitch needle is passed through from the lead terminal side, and a lead terminal burr and an electrode foil burr are formed on the back side of the electrode foil.
- a stitch needle having a square cross section is penetrated from the lead terminal side to form a through hole in the electrode foil.
- a portion is formed as a burr on the back side of the electrode foil together with the lead terminal by a corner portion of the stitch needle, and a lead terminal is formed as a burr on the back side of the electrode foil by a side portion of the stitch needle. It is characterized in that the burr formed on the back side is pressed to connect the electrode foil and the lead terminal.
- the burr of the lead terminal formed on the back side of the electrode foil by the side of the stitch needle bites into the electrode foil by pressing, and the electrode foil and the lead terminal are connected.
- Some burrs are formed together with the lead terminals by the corners of the stitch needles, and the burrs of the electrode foil and the burrs of the lead terminals are connected together by pressing, so the connection strength between the electrode foil and the lead terminals is increased. It can be further increased.
- the stress on the electrode foil by the stitch needle is only a part of the through hole of the electrode foil, and the occurrence of cracks and the like in the electrode foil can be suppressed.
- the electrode foil burrs are formed at a plurality of locations of the through holes of the electrode foil. According to this, the burr of the electrode foil and the burr of the lead terminal are pressed to increase the integral part, and the mechanical strength between the electrode foil and the lead terminal is increased.
- the through hole of the electrode foil is a square hole
- the stitch needle is lead at a position rotated by 30 to 60 degrees with respect to the corner of the stitch needle having a square cross section and the corner of the through hole of the electrode foil. It is characterized by penetrating the terminal. According to this, the corner
- the burr of the electrode foil formed in the square hole of the electrode foil is formed on all sides of the square hole. According to this, the burr of the electrode foil and the burr of the lead terminal are pressed to increase the integral part, and the mechanical strength between the electrode foil and the lead terminal is increased.
- corner portion of the stitch needle having a square cross section when the stitch needle penetrates into the through hole of the electrode foil is in pressure contact with a part of the inner periphery of the through hole of the electrode foil.
- the corner of the stitch needle is in pressure contact with a part of the inner periphery of the through hole of the electrode foil, and the electrode foil burr and the lead terminal burr can be easily formed by biting into the electrode foil.
- the electrolytic capacitor and the manufacturing method thereof of the present invention improve the electrical and mechanical connection in the stitch connection between the electrode foil and the lead terminal, and the stitch connection is possible even with the electrode foil having a high etching magnification. .
- the electrolytic capacitor according to the present invention includes an anode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment, and a cathode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment as necessary, respectively.
- anode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment
- a cathode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment as necessary, respectively.
- the outer case made of aluminum is housed together with the driving electrolyte, and the opening of the outer case is sealed with a sealing rubber.
- a square hole 3 is formed in advance as a through hole at a portion of the electrode foil 1 to be stitched with the lead terminal 2.
- Fig.1 (a) it mounts on the die
- a square hole 3 as shown in FIG. 2 is formed.
- the punching means 6 penetrates the electrode foil 1 and then passes through the punched hole 5 of the die 4, and the removed piece 7 of the electrode foil 1 is discharged through the punched hole 5. .
- the punching means 6 moves to the original position even when pulled upward, and waits until the next planned stitch portion of the electrode foil 1 arrives.
- the punching means 6 has a square cross section, and in the embodiment, has a substantially square cross sectional shape, whereby a substantially square square hole 3 is formed in the electrode foil 1.
- Two punching means 6 are provided and two square holes 3 are simultaneously formed in the width direction of the electrode foil 1.
- the present invention is not limited to this, and stitches between the electrode foil 1 and the lead terminal 2 that are arbitrarily provided.
- the number of punching means 6 can be set as appropriate according to the number of planned sites.
- the periphery of the square hole 3 is subjected to surface treatment by polishing or the like as necessary, and as shown in FIG. 1 is placed on another die 4 '.
- the lead terminal 2 is placed on the square hole 3 of the electrode foil 1 and the periphery of the planned stitching portion is pressed by the fixing means 8.
- the fixing means 8 is formed with a guide hole 14 that can move the stitch needle 9 up and down and guide it accurately onto the square hole 3.
- the stitch needle 9 has a substantially square cross-sectional angle, and forms a pyramid shape toward the tip. As shown in FIG.
- the stitch needle 9 is passed through the guide hole 14 of the fixing means 8 from the lead terminal 2 side, and the burr 10 of the lead terminal 2 and the burr 10 of the electrode foil 1 are formed on the back side of the electrode foil 1.
- the die 4 ′ is formed not only with the electrode foil 1 mounted and fixed, but also with a hole 5 ′ through which the stitch needle 9 is inserted.
- the hole 5 ′ is formed by the burr 10 of the lead terminal 2 and the electrode.
- the burr 10 ′ of the foil 1 has dimensions for stably forming a predetermined shape below the electrode foil 1. Note that there are two stitch needles 9 as in the number of the square holes 3, and the lead terminals 2 are penetrated simultaneously.
- the positional relationship between the cross-sectional shape of the stitch needle 9 and the square hole 3 formed in the electrode foil 1 will be described.
- two square holes 3 are formed in the electrode foil 1 in the width direction so that one side thereof coincides with the longitudinal direction and the width direction of the electrode foil 1.
- One side of the square hole 3 is 0.4 mm in the embodiment, but 0.3 to 1.5 mm is preferable.
- the stitch needle 9 has a square cross section and a pyramid shape toward the tip. The diagonal line penetrates the square hole 3 of the electrode foil 1 and the dimension of one side of the square hole 3 of the electrode foil 1 is larger. Larger is preferred. Thereby, the stitch needle 9 can be bited into each side of the square hole 3 of the electrode foil 1 together with the lead terminal 2.
- the stitch needle 9 pierces the lead terminal 2 placed on the square hole 3 of the electrode foil 1, penetrates the square hole 3 and protrudes to the back side of the electrode foil 1.
- the needle 9 is 45 degrees with respect to the corner hole 3 with respect to the corner portion of the stitch needle 9 having a square cross section and the corner hole 3 of the electrode foil 1, and a preferable range is 30 to 60 degrees.
- the square hole 3 is penetrated at the rotated position. Therefore, in the vicinity of the center of each side of the square hole 3 of the electrode foil 1, the corner of the stitch needle 9 partially bites together with the lead terminal 2.
- FIG. 3B is a cross-sectional view taken along the line AA in FIG. 4.
- the burr 10 ′ of the electrode foil 1 and the burr 10 of the lead terminal 2 are shown.
- the stitch needle 9 penetrating the electrode foil 1 moves to the original position even when pulled up and waits until the next electrode foil 1 arrives.
- the electrode foil 1 is pressed with the burrs 10 of the lead terminals 2 and the burrs 10 'of the electrode foil 1 formed on the back side.
- a flat plate-shaped press die 11 is lowered to the lead terminal side of the electrode foil 1 to hold the electrode foil 1.
- the flat plate-like lower mold 12 installed on the back side of the electrode foil 1 moves toward the electrode foil 1 and the burrs 10 of the lead terminals 2 and the burrs 10 ′ of the electrode foil 1 projecting to the back side of the electrode foil 1.
- the burrs 10 of the lead terminals 2 are folded back in four directions from the respective sides of the stitch needle 9 that are square in cross section, thereby forming the leaf portion 13.
- the electrode foil 1 is sandwiched and pressed between the lead terminal 2 and the leaf portion 13 to obtain electrical connection. Also, the burr 10 'of the electrode foil 1 and the burr 10 of the lead terminal 2 formed near the center of each side of the square hole 3 of the electrode foil 1 are pressed together to obtain mechanical strength. About the part (leaf part 13) which protruded only the burr
- the press thickness of the burr 10 etc. of the lead terminal 2 by the lower press mold 12 is preferably in the range of 0.9 to 1.2 times the thickness dimension of the electrode foil 1 and the lead terminal 2 before pressing. is there.
- the thickness of the electrode foil 1 and the lead terminal 2 before being crushed exceeds 0.9 times, the electrode foil 1 is liable to be cracked, and the thickness of the electrode foil 1 and the lead terminal 2 before being crushed. If the press thickness does not reach up to 1.2 times, the electrical and mechanical connectivity between the electrode foil 1 and the lead terminal 2 is difficult to obtain.
- the burr 10 ′ of the electrode foil 1 is formed by the stitch needle 9 on all sides of the square hole 3 of the electrode foil 1. It can also be formed on at least one side.
- the through hole 3 ′ provided in the electrode foil 1 is a square square hole, but may be another polygonal shape, or may be a circular through hole 3 ′ as shown in FIG. 7.
- the stitch needle 9 has a square cross section, but may be another polygonal shape.
Abstract
The purpose of this invention is to securely stitch together an electrode foil and a lead terminal, without tearing of the foil or the like even if the etching ratio of the electrode foil is high, and to improve the electrical and mechanical connection of said stitch connection. Provided is an electrolytic capacitor in which a lead terminal is laid on top of an electrode foil having a through-hole formed therein, a stitch needle is pushed through the electrode foil from the side with the lead terminal, forming a lead terminal burr and an electrode foil burr on the reverse side of the electrode foil, and said burrs are pressed, thereby connecting the electrode foil and the lead terminal. On at least one side of the abovementioned through-hole in the electrode foil, an electrode foil burr and a lead terminal burr are formed on the reverse side of the electrode foil and said burrs are pressed, thereby connecting the electrode foil and the lead terminal.
Description
この発明は電解コンデンサおよびその製造方法に関し、特に電解コンデンサの電極箔とリード端子の接続構造及び接続方法に関する。
The present invention relates to an electrolytic capacitor and a manufacturing method thereof, and more particularly to a connection structure and a connection method of an electrode foil and a lead terminal of the electrolytic capacitor.
従来、電解コンデンサの電極箔とリード端子の接続方法としては、電極箔とリード端子を重ね合わせ、ステッチ針をリード端子側より貫通させ、電極箔及びリード端子のバリを電極箔の裏側に形成し、更に該バリをプレス加工して電極箔とリード端子とを接続していた。
Conventionally, as a method of connecting the electrode foil and the lead terminal of the electrolytic capacitor, the electrode foil and the lead terminal are overlapped, the stitch needle is penetrated from the lead terminal side, and the burr of the electrode foil and the lead terminal is formed on the back side of the electrode foil. Further, the burr was pressed to connect the electrode foil and the lead terminal.
このステッチ針を電極箔及びリード端子に貫通させる際に、この電極箔の表面に化成皮膜が形成されているため、リード端子との接触は電極箔の化成皮膜が多く、従って接続抵抗が高い状態となっている。
When this stitch needle is passed through the electrode foil and the lead terminal, since the chemical film is formed on the surface of the electrode foil, the contact with the lead terminal has a lot of chemical film on the electrode foil, and therefore the connection resistance is high. It has become.
そこで、予め穴を設けた電極箔にリード端子を重ね合わせ、リード端子側よりステッチ針を貫通させて、リード端子のバリを電極箔の裏側に形成し、更に該バリをプレス加工して電極箔とリード端子とを接続する方法（特許文献１）、また電極箔に、4つの隅部が夫々電極箔の長手方向及び幅方向に向けられた貫通孔を設け、該各穴上にリード端子を重ね合わせ、リード端子側から断面角状に形成されたステッチ針の４つの角部を前記貫通孔の4つの隅部に一致させて貫通孔内に貫通させ、リード端子のバリを電極箔の裏側に形成し、更に該バリをプレス加工にして電極箔とリード端子とを接続する方法（特許文献２）が知られている。
Therefore, the lead terminal is overlaid on the electrode foil in which holes are provided in advance, the stitch needle is penetrated from the lead terminal side, and a burr of the lead terminal is formed on the back side of the electrode foil. (Patent Document 1) for connecting a lead terminal to a lead terminal, and through holes in which four corners are respectively directed in the longitudinal direction and the width direction of the electrode foil are provided in the electrode foil, and the lead terminal is provided on each hole. The four corners of the stitch needle formed in a square cross section from the lead terminal side are aligned with the four corners of the through hole and penetrated into the through hole, and the lead terminal burr is on the back side of the electrode foil In addition, there is known a method (Patent Document 2) in which an electrode foil and a lead terminal are connected by pressing the burr.
しかしながら、予め穴を電極箔に設けた場合、リード端子と電極箔との固定は、ステッチ針を貫通した際に生じるリード端子のバリのみであるため、固定強度が減少する傾向にある。また、近年電解コンデンサの小型化、高容量化が求められており、これにともない、電極箔の表面積を拡大させるため、高倍率でのエッチング処理が形成される傾向にある。この高エッチング箔を用いて上記のステッチ針による加締め接続を行なった場合、電極箔が脆弱化しているため、電極箔の一部に亀裂が生じる等の接続の信頼性に問題があった。特に特許文献2に記載のように、電極箔に設けた貫通孔と断面角状のステッチ針を４つの角部を一致させて貫通孔内に貫通させると、電極箔の貫通孔の４つ辺全体がステッチ針を貫通する際に押圧され、これにより電極箔へのストレスが過度になり、電極箔の一部に亀裂等が生じる場合がある。
However, when holes are provided in the electrode foil in advance, the fixing between the lead terminal and the electrode foil is only the burr of the lead terminal that occurs when the stitch needle is passed through, and the fixing strength tends to decrease. In recent years, there has been a demand for miniaturization and higher capacity of electrolytic capacitors. Accordingly, in order to increase the surface area of the electrode foil, there is a tendency that etching processing at a high magnification is formed. When the caulking connection with the above stitch needle is performed using this highly etched foil, the electrode foil is weak, and there is a problem in the reliability of connection such that a part of the electrode foil cracks. In particular, as described in Patent Document 2, when the through hole provided in the electrode foil and the stitch needle having a square cross section are made to coincide with each other in the four holes, the four sides of the through hole of the electrode foil are formed. When the whole penetrates the stitch needle, it is pressed, which causes excessive stress on the electrode foil, which may cause a crack or the like in part of the electrode foil.
上記の課題を解決するために、本発明の電解コンデンサは、貫通孔を形成した電極箔にリード端子を重ね、リード端子側よりステッチ針を貫通して前記電極箔の裏側にリード端子のバリ及び電極箔のバリを形成し、該バリをプレス加工して前記電極箔とリード端子とを接続した電解コンデンサにおいて、前記電極箔のバリとリード端子のバリが電極箔の裏側に形成されてプレス加工された接続部と、リード端子のバリが電極箔の裏側に形成されてプレス加工された接続部位とを備えたことを特徴としている。
In order to solve the above-described problems, the electrolytic capacitor of the present invention has a lead terminal overlaid on an electrode foil in which a through hole is formed, penetrates a stitch needle from the lead terminal side, and burrs and lead terminals on the back side of the electrode foil. In the electrolytic capacitor in which the burr of the electrode foil is formed, and the burr is pressed to connect the electrode foil and the lead terminal, the burr of the electrode foil and the burr of the lead terminal are formed on the back side of the electrode foil and pressed. And a connecting portion formed by pressing the burr of the lead terminal formed on the back side of the electrode foil.
これによると、電極箔の裏側に形成されたリード端子のバリがプレス加工によって電極箔に食い込む接続部により電極箔とリード端子が接続されるが、更に電極箔の貫通孔の一部がステッチ針によってリード端子とともにバリを形成し、該電極箔のバリとリード端子のバリがプレス加工によって一体となって接続部を形成するため、電極箔とリード端子との接続強度を更に高めることができる。またステッチ針による電極箔へのストレスが、電極箔の貫通孔の一部のみであり、電極箔への亀裂等の発生を抑制できる。
According to this, the electrode foil and the lead terminal are connected by the connecting portion where the burr of the lead terminal formed on the back side of the electrode foil bites into the electrode foil by pressing, but a part of the through hole of the electrode foil is further stitched by the needle. Thus, a burr is formed together with the lead terminal, and the burr of the electrode foil and the burr of the lead terminal are integrally formed by pressing to form a connection portion, so that the connection strength between the electrode foil and the lead terminal can be further increased. Further, the stress on the electrode foil by the stitch needle is only a part of the through hole of the electrode foil, and the occurrence of cracks and the like in the electrode foil can be suppressed.
また、本発明の電解コンデンサの製造方法は、貫通孔を形成した電極箔にリード端子を重ね、リード端子側よりステッチ針を貫通して前記電極箔の裏側にリード端子のバリ及び電極箔のバリを形成し、該バリをプレス加工して前記電極箔とリード端子とを接続する電解コンデンサの製造方法において、断面角状のステッチ針をリード端子側より貫通させて、電極箔の貫通孔の一部が前記ステッチ針の角部によってリード端子とともに電極箔の裏側にバリとなって形成させるとともに、ステッチ針の辺部によってリード端子が電極箔の裏側にバリとなって形成させ、該電極箔の裏側に形成されたバリをプレス加工して電極箔とリード端子とを接続することを特徴としている。
Further, the electrolytic capacitor manufacturing method of the present invention is such that a lead terminal is stacked on an electrode foil having a through hole, a stitch needle is passed through from the lead terminal side, and a lead terminal burr and an electrode foil burr are formed on the back side of the electrode foil. In the method of manufacturing an electrolytic capacitor in which the burr is pressed and the electrode foil and the lead terminal are connected to each other, a stitch needle having a square cross section is penetrated from the lead terminal side to form a through hole in the electrode foil. A portion is formed as a burr on the back side of the electrode foil together with the lead terminal by a corner portion of the stitch needle, and a lead terminal is formed as a burr on the back side of the electrode foil by a side portion of the stitch needle. It is characterized in that the burr formed on the back side is pressed to connect the electrode foil and the lead terminal.
これによると、ステッチ針の辺部によって電極箔の裏側に形成されたリード端子のバリがプレス加工によって電極箔に食い込むことで電極箔とリード端子が接続されるが、更に電極箔の貫通孔の一部がステッチ針の角部によってリード端子とともにバリを形成し、該電極箔のバリとリード端子のバリがプレス加工によって一体となって接続されるため、電極箔とリード端子との接続強度を更に高めることができる。またステッチ針による電極箔へのストレスが、電極箔の貫通孔の一部のみであり、電極箔への亀裂等の発生を抑制できる。
According to this, the burr of the lead terminal formed on the back side of the electrode foil by the side of the stitch needle bites into the electrode foil by pressing, and the electrode foil and the lead terminal are connected. Some burrs are formed together with the lead terminals by the corners of the stitch needles, and the burrs of the electrode foil and the burrs of the lead terminals are connected together by pressing, so the connection strength between the electrode foil and the lead terminals is increased. It can be further increased. Further, the stress on the electrode foil by the stitch needle is only a part of the through hole of the electrode foil, and the occurrence of cracks and the like in the electrode foil can be suppressed.
また、前記電極箔のバリが電極箔の貫通孔の複数個所に形成されることを特徴としている。これによると、電極箔のバリとリード端子のバリとが押圧されて一体となる部分が増え電極箔とリード端子との機械的強度が高まる。
Further, the electrode foil burrs are formed at a plurality of locations of the through holes of the electrode foil. According to this, the burr of the electrode foil and the burr of the lead terminal are pressed to increase the integral part, and the mechanical strength between the electrode foil and the lead terminal is increased.
また、前記電極箔の貫通孔が角孔であり、断面角状のステッチ針の角部と電極箔の貫通孔の角部に対して３０～６０度回転させた位置にて、ステッチ針をリード端子に貫通させることを特徴としている。これによると、電極箔の貫通孔の各辺の中央付近に精度よくステッチ針の角部を食い込ませることができる。
Further, the through hole of the electrode foil is a square hole, and the stitch needle is lead at a position rotated by 30 to 60 degrees with respect to the corner of the stitch needle having a square cross section and the corner of the through hole of the electrode foil. It is characterized by penetrating the terminal. According to this, the corner | angular part of a stitch needle | hook can be bited in in the vicinity of the center of each side of the through-hole of electrode foil with high precision.
また、前記電極箔の角孔に形成された電極箔のバリは、角孔の全ての辺に形成されることを特徴としている。これによると、電極箔のバリとリード端子のバリとが押圧されて一体となる部分が増え電極箔とリード端子との機械的強度が高まる。
Further, the burr of the electrode foil formed in the square hole of the electrode foil is formed on all sides of the square hole. According to this, the burr of the electrode foil and the burr of the lead terminal are pressed to increase the integral part, and the mechanical strength between the electrode foil and the lead terminal is increased.
また、前記電極箔の貫通孔へのステッチ針の貫通状態における断面角状のステッチ針の角部が電極箔の貫通孔の内周の一部と圧接状態であることを特徴としている。
Further, the corner portion of the stitch needle having a square cross section when the stitch needle penetrates into the through hole of the electrode foil is in pressure contact with a part of the inner periphery of the through hole of the electrode foil.
これによると、ステッチ針の角部が電極箔の貫通孔の内周の一部と圧接状態となり、電極箔に食い込むことで電極箔のバリとリード端子のバリとを容易に形成できる。
According to this, the corner of the stitch needle is in pressure contact with a part of the inner periphery of the through hole of the electrode foil, and the electrode foil burr and the lead terminal burr can be easily formed by biting into the electrode foil.
以上、本発明の電解コンデンサ及びその製造方法は、電極箔とリード端子とのステッチ接続における、電気的及び機械的接続が向上し、高エッチング倍率の電極箔であってもステッチ接続が可能となる。
As described above, the electrolytic capacitor and the manufacturing method thereof of the present invention improve the electrical and mechanical connection in the stitch connection between the electrode foil and the lead terminal, and the stitch connection is possible even with the electrode foil having a high etching magnification. .
次に、本発明の実施の形態について実施例を参照して説明する。
Next, embodiments of the present invention will be described with reference to examples.
本発明に係る電解コンデンサは、表面がエッチング処理及び化成処理を施したアルミニウムからなる陽極箔と、表面にエッチング処理、必要に応じて化成処理を施したアルミニウムからなる陰極箔とに、それぞれＣＰ線とアルミニウム線を接続したリード端子２をステッチによって接続し、この陽極箔と陰極箔とを間にセパレータを介在させて巻回又は積層してコンデンサ素子を形成し、このコンデンサ素子を有底筒状のアルミニウムからなる外装ケースに駆動用電解液とともに収納し、外装ケースの開口部を封口ゴムにて封止する構造となっている。
The electrolytic capacitor according to the present invention includes an anode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment, and a cathode foil made of aluminum whose surface has been subjected to etching treatment and chemical conversion treatment as necessary, respectively. Are connected by stitching, and the anode foil and the cathode foil are wound or laminated with a separator interposed therebetween to form a capacitor element. The outer case made of aluminum is housed together with the driving electrolyte, and the opening of the outer case is sealed with a sealing rubber.
ここで、電極箔１（陰極箔および陽極箔）へのリード端子２のステッチ接続について詳述する。まず電極箔１におけるリード端子２とのステッチ予定部位に予め貫通孔として角孔３を形成する。図１（ａ）に示すように、穴あけ手段６の挿通部となる抜き穴５を備えたダイス４上に載置し、上方より穴あけ手段６を電極箔１に貫通させることによって、電極箔１に図２に示すような角孔３が形成される。図１（ｂ）に示すように、前記穴あけ手段６は電極箔１を貫通した後、ダイス４の抜き穴５を挿通するとともに、電極箔１の除去片７は、抜き穴５を通じて排出される。その後、図１（ｃ）に示すように穴あけ手段６は、上方に引き上げられてもとの位置に移動し、次の電極箔１のステッチ予定部位が到達するまで待機する。この穴あけ手段６は、断面角状となっており、実施例では、略正方形の断面形状を有しており、これにより、電極箔１には、略正方形の角孔３が形成される。なお、穴あけ手段６を２つ設置し、電極箔１の幅方向に同時に角孔３を２つ形成しているが、これに限らず、任意に設けた電極箔１とリード端子２とのステッチ予定部位の数に応じて適宜穴あけ手段６の数を設定できる。
Here, the stitch connection of the lead terminal 2 to the electrode foil 1 (cathode foil and anode foil) will be described in detail. First, a square hole 3 is formed in advance as a through hole at a portion of the electrode foil 1 to be stitched with the lead terminal 2. As shown to Fig.1 (a), it mounts on the die | dye 4 provided with the punching hole 5 used as the insertion part of the drilling means 6, and makes the electrode foil 1 penetrate the electrode foil 1 from the upper direction from upper direction. A square hole 3 as shown in FIG. 2 is formed. As shown in FIG. 1 (b), the punching means 6 penetrates the electrode foil 1 and then passes through the punched hole 5 of the die 4, and the removed piece 7 of the electrode foil 1 is discharged through the punched hole 5. . Thereafter, as shown in FIG. 1 (c), the punching means 6 moves to the original position even when pulled upward, and waits until the next planned stitch portion of the electrode foil 1 arrives. The punching means 6 has a square cross section, and in the embodiment, has a substantially square cross sectional shape, whereby a substantially square square hole 3 is formed in the electrode foil 1. Two punching means 6 are provided and two square holes 3 are simultaneously formed in the width direction of the electrode foil 1. However, the present invention is not limited to this, and stitches between the electrode foil 1 and the lead terminal 2 that are arbitrarily provided. The number of punching means 6 can be set as appropriate according to the number of planned sites.
次に、電極箔１に所定の角孔３が形成されると、必要に応じて、角孔３の周辺を研磨等にて表面処理を行い、図３（ａ）に示すように、電極箔１を別のダイス４’上に載置する。この電極箔１の角孔３の上にはリード端子２が載置され、さらにステッチ予定部位の周囲を固定手段８にて押さえる。この固定手段８にはステッチ針９を上下動可能で角孔３上に精度よく案内する案内孔１４が形成されている。ステッチ針９は、略正方形の断面角状となっており先端に向かって角錐形状を形成している。図３（ｂ）に示すように、このステッチ針９を固定手段８の案内孔１４を通してリード端子２側より貫通させ、電極箔１の裏側にリード端子２のバリ１０及び電極箔１のバリ１０’を突出させる。ダイス４’は、電極箔１を載置して固定するだけではなく、ステッチ針９を挿通する抜き穴５’が形成されており、この抜き穴５’は、リード端子２のバリ１０及び電極箔１のバリ１０’を電極箔１の下方に所定形状に安定して形成するための寸法を備えている。なお、ステッチ針９は、角孔３の数と同様に２本あり、同時にリード端子２を貫通させている。
Next, when a predetermined square hole 3 is formed in the electrode foil 1, the periphery of the square hole 3 is subjected to surface treatment by polishing or the like as necessary, and as shown in FIG. 1 is placed on another die 4 '. The lead terminal 2 is placed on the square hole 3 of the electrode foil 1 and the periphery of the planned stitching portion is pressed by the fixing means 8. The fixing means 8 is formed with a guide hole 14 that can move the stitch needle 9 up and down and guide it accurately onto the square hole 3. The stitch needle 9 has a substantially square cross-sectional angle, and forms a pyramid shape toward the tip. As shown in FIG. 3B, the stitch needle 9 is passed through the guide hole 14 of the fixing means 8 from the lead terminal 2 side, and the burr 10 of the lead terminal 2 and the burr 10 of the electrode foil 1 are formed on the back side of the electrode foil 1. 'Protrude. The die 4 ′ is formed not only with the electrode foil 1 mounted and fixed, but also with a hole 5 ′ through which the stitch needle 9 is inserted. The hole 5 ′ is formed by the burr 10 of the lead terminal 2 and the electrode. The burr 10 ′ of the foil 1 has dimensions for stably forming a predetermined shape below the electrode foil 1. Note that there are two stitch needles 9 as in the number of the square holes 3, and the lead terminals 2 are penetrated simultaneously.
ここで、ステッチ針９の断面形状と電極箔１に形成した角孔３の位置関係について説明する。まず、図２に示すように、角孔３はその一辺が電極箔１の長手方向と幅方向に一致するように電極箔１に幅方向に２つ形成されている。角孔３の一辺は実施例では０．４ｍｍで形成しているが０．３～１．５ｍｍが好ましい。ステッチ針９は、断面角状で先端に向かって角錐形状を構成しているが、その対角線は電極箔１の角孔３に貫通した状態において、電極箔１の角孔３の一辺の寸法より大きいことが好ましい。これにより、電極箔１の角孔３の各辺に夫々リード端子２とともにステッチ針９を食い込ませることができる。ステッチ針９は、電極箔１の角孔３上に載置されたリード端子２を突き刺し、角孔３を貫通して電極箔１の裏側へ突出するが、図４に示すように、このステッチ針９は、角孔３に対して、前記断面角状のステッチ針９の角部と電極箔１の角孔３の角部に対して実施例では４５度、好ましい範囲としては３０～６０度回転させた位置にて角孔３に貫通させている。従って、電極箔１の角孔３の各辺の中心付近においては、ステッチ針９の角部がリード端子２とともに部分的に食い込むようになっている。これにより、電極箔１の裏側には、ステッチ針９の角部によって形成されるリード端子２のバリ１０及び電極箔１のバリ１０’と、ステッチ針９の各辺にて形成されるリード端子２のバリ１０とが突出する。なお、図３（ｂ）は、図４のＡ－Ａ線の断面図であり、電極箔１の角孔３の一辺の中央付近において、電極箔１のバリ１０’とリード端子２のバリ１０とが同時に形成されている部分を示しており、断面角状のステッチ針９の一辺に相当する部分については、リード端子２のバリ１０のみが形成されることになる。その後、電極箔１を貫通したステッチ針９は、上方に引き上げられてもとの位置に移動し、次の電極箔１が到達するまで待機する。
Here, the positional relationship between the cross-sectional shape of the stitch needle 9 and the square hole 3 formed in the electrode foil 1 will be described. First, as shown in FIG. 2, two square holes 3 are formed in the electrode foil 1 in the width direction so that one side thereof coincides with the longitudinal direction and the width direction of the electrode foil 1. One side of the square hole 3 is 0.4 mm in the embodiment, but 0.3 to 1.5 mm is preferable. The stitch needle 9 has a square cross section and a pyramid shape toward the tip. The diagonal line penetrates the square hole 3 of the electrode foil 1 and the dimension of one side of the square hole 3 of the electrode foil 1 is larger. Larger is preferred. Thereby, the stitch needle 9 can be bited into each side of the square hole 3 of the electrode foil 1 together with the lead terminal 2. The stitch needle 9 pierces the lead terminal 2 placed on the square hole 3 of the electrode foil 1, penetrates the square hole 3 and protrudes to the back side of the electrode foil 1. As shown in FIG. In the embodiment, the needle 9 is 45 degrees with respect to the corner hole 3 with respect to the corner portion of the stitch needle 9 having a square cross section and the corner hole 3 of the electrode foil 1, and a preferable range is 30 to 60 degrees. The square hole 3 is penetrated at the rotated position. Therefore, in the vicinity of the center of each side of the square hole 3 of the electrode foil 1, the corner of the stitch needle 9 partially bites together with the lead terminal 2. Thereby, on the back side of the electrode foil 1, the burrs 10 of the lead terminals 2 formed by the corners of the stitch needle 9 and the burrs 10 ′ of the electrode foil 1 and the lead terminals formed at each side of the stitch needle 9. 2 burr 10 protrudes. FIG. 3B is a cross-sectional view taken along the line AA in FIG. 4. In the vicinity of the center of one side of the square hole 3 of the electrode foil 1, the burr 10 ′ of the electrode foil 1 and the burr 10 of the lead terminal 2 are shown. Are shown at the same time, and only the burr 10 of the lead terminal 2 is formed at a portion corresponding to one side of the stitch needle 9 having a square cross section. Thereafter, the stitch needle 9 penetrating the electrode foil 1 moves to the original position even when pulled up and waits until the next electrode foil 1 arrives.
次に電極箔１は、その裏側にリード端子２のバリ１０及び電極箔１のバリ１０’が形成された状態にて、プレス加工される。図５に示すように、プレス加工では、まず平板状のプレス上型１１が電極箔１のリード端子側に下降し電極箔１を押さえこむ。その後電極箔１の裏側に設置されている平板状のプレス下型１２が電極箔１に向かって移動し、電極箔１の裏側に突出したリード端子２のバリ１０及び電極箔１のバリ１０’を押しつぶし、図６に示すように、ステッチ針９の断面角状の各辺を基点に四方に向かってリード端子２のバリ１０が折り返されてリーフ部１３が形成される。このようにステッチ針９の各辺を基点として折り返されたリーフ部１３においては、電極箔１はリード端子２とそのリーフ部１３に挟み込まれて押圧されることで電気的な接続が得られるとともに、電極箔１の角孔３の各辺の中央付近に形成された電極箔１のバリ１０’とリード端子２のバリ１０についても、押圧されて一体となり機械的強度が得られる。このリード端子２のバリ１０のみを電極箔１の裏側に突出させた部分（リーフ部１３）については、このリード端子２のバリ１０と電極箔１の角孔３との間に隙間が生じているため、プレス加工の際に、リード端子２のバリ１０が受ける押圧ストレスは電極箔１に向かわず、電極箔１の箔割れ等が抑制されることになる。
Next, the electrode foil 1 is pressed with the burrs 10 of the lead terminals 2 and the burrs 10 'of the electrode foil 1 formed on the back side. As shown in FIG. 5, in the press working, first, a flat plate-shaped press die 11 is lowered to the lead terminal side of the electrode foil 1 to hold the electrode foil 1. Thereafter, the flat plate-like lower mold 12 installed on the back side of the electrode foil 1 moves toward the electrode foil 1 and the burrs 10 of the lead terminals 2 and the burrs 10 ′ of the electrode foil 1 projecting to the back side of the electrode foil 1. As shown in FIG. 6, the burrs 10 of the lead terminals 2 are folded back in four directions from the respective sides of the stitch needle 9 that are square in cross section, thereby forming the leaf portion 13. As described above, in the leaf portion 13 that is folded back from each side of the stitch needle 9, the electrode foil 1 is sandwiched and pressed between the lead terminal 2 and the leaf portion 13 to obtain electrical connection. Also, the burr 10 'of the electrode foil 1 and the burr 10 of the lead terminal 2 formed near the center of each side of the square hole 3 of the electrode foil 1 are pressed together to obtain mechanical strength. About the part (leaf part 13) which protruded only the burr | flash 10 of this lead terminal 2 to the back side of the electrode foil 1, a clearance gap arises between the burr | flash 10 of this lead terminal 2, and the square hole 3 of the electrode foil 1. Therefore, the pressing stress received by the burr 10 of the lead terminal 2 during the pressing process does not go to the electrode foil 1, and the cracking of the electrode foil 1 and the like are suppressed.
なお、前記プレス下型１２によるリード端子２のバリ１０等のプレス厚みは、電極箔１及びリード端子２のプレス前の厚み寸法に対して、０．９～１．２倍の範囲が良好である。潰す前の電極箔１及びリード端子２の厚み寸法に対して０．９倍を超えて潰すと、電極箔１に亀裂等が生じやすくなり、また潰す前の電極箔１及びリード端子２の厚みの１．２倍までに到達しないプレス厚みであると、電極箔１とリード端子２の電気的及び機械的な接続性が得られにくい。
It should be noted that the press thickness of the burr 10 etc. of the lead terminal 2 by the lower press mold 12 is preferably in the range of 0.9 to 1.2 times the thickness dimension of the electrode foil 1 and the lead terminal 2 before pressing. is there. When the thickness of the electrode foil 1 and the lead terminal 2 before being crushed exceeds 0.9 times, the electrode foil 1 is liable to be cracked, and the thickness of the electrode foil 1 and the lead terminal 2 before being crushed. If the press thickness does not reach up to 1.2 times, the electrical and mechanical connectivity between the electrode foil 1 and the lead terminal 2 is difficult to obtain.
以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.
例えば、実施例では、電極箔１の角孔３の全ての辺において、ステッチ針９により電極箔１のバリ１０’を形成していたが、これにかぎらず、電極箔１の角孔３の少なくとも一辺にのみ形成することもできる。また、実施例では、電極箔１に設けた貫通孔３’は正方形の角孔を例示したが、他の多角形でもよく、また図７に示すように円形の貫通孔３’としても良い。ステッチ針９も同様に、断面正方形を用いたが、他の多角形でもよい。
For example, in the embodiment, the burr 10 ′ of the electrode foil 1 is formed by the stitch needle 9 on all sides of the square hole 3 of the electrode foil 1. It can also be formed on at least one side. In the embodiment, the through hole 3 ′ provided in the electrode foil 1 is a square square hole, but may be another polygonal shape, or may be a circular through hole 3 ′ as shown in FIG. 7. Similarly, the stitch needle 9 has a square cross section, but may be another polygonal shape.
１ 電極箔
２ リード端子
３ 角孔
３’ 貫通孔
４ ダイス
４’ ダイス
５ 抜き穴
５’ 抜き穴
６ 穴あけ手段
７ 除去片
８ 固定手段
９ ステッチ針
１０ バリ
１０’バリ
１１ プレス上型
１２ プレス下型
１３ リーフ部
１４ 案内孔 DESCRIPTION OFSYMBOLS 1 Electrode foil 2 Lead terminal 3 Square hole 3 'Through hole 4 Die 4' Die 5 Punch hole 5 'Punch hole 6 Punching means 7 Removal piece 8 Fixing means 9 Stitch needle 10 Burr 10' Burr 11 Press upper mold 12 Press lower mold 13 Leaf part 14 Guide hole
２ リード端子
３ 角孔
３’ 貫通孔
４ ダイス
４’ ダイス
５ 抜き穴
５’ 抜き穴
６ 穴あけ手段
７ 除去片
８ 固定手段
９ ステッチ針
１０ バリ
１０’バリ
１１ プレス上型
１２ プレス下型
１３ リーフ部
１４ 案内孔 DESCRIPTION OF
Claims (6)
- 貫通孔を形成した電極箔にリード端子を重ね、リード端子側よりステッチ針を貫通して前記電極箔の裏側にリード端子のバリ及び電極箔のバリを形成し、該バリをプレス加工して前記電極箔とリード端子とを接続した電解コンデンサにおいて、
前記電極箔のバリとリード端子のバリが電極箔の裏側に形成されてプレス加工された接続部位と、リード端子のバリのみが電極箔の裏側に形成されてプレス加工された接続部位とを備えた電解コンデンサ。 The lead terminal is overlaid on the electrode foil in which the through hole is formed, the lead needle burr and the electrode foil burr are formed on the back side of the electrode foil through the stitch needle from the lead terminal side, and the burr is pressed to process the burr In the electrolytic capacitor that connects the electrode foil and the lead terminal,
The electrode foil burrs and the lead terminal burrs are formed on the back side of the electrode foil and pressed, and the connection portions are formed by pressing only the lead terminal burrs on the back side of the electrode foil. Electrolytic capacitor. - 貫通孔を形成した電極箔にリード端子を重ね、リード端子側よりステッチ針を貫通して前記電極箔の裏側にリード端子のバリ及び電極箔のバリを形成し、該バリをプレス加工して前記電極箔とリード端子とを接続する電解コンデンサの製造方法において、
断面角状のステッチ針をリード端子側より貫通させて、電極箔の貫通孔の一部が前記ステッチ針の角部によってリード端子とともに電極箔の裏側にバリとなって形成させるとともに、ステッチ針の辺部によってリード端子が電極箔の裏側にバリとなって形成させ、該電極箔の裏側に形成されたバリをプレス加工して電極箔とリード端子とを接続する電解コンデンサの製造方法。 The lead terminal is overlaid on the electrode foil in which the through hole is formed, the lead needle burr and the electrode foil burr are formed on the back side of the electrode foil through the stitch needle from the lead terminal side, and the burr is pressed to process the burr In the manufacturing method of the electrolytic capacitor for connecting the electrode foil and the lead terminal,
A stitch needle having a square cross section is penetrated from the lead terminal side, and a part of the through hole of the electrode foil is formed as a burr on the back side of the electrode foil together with the lead terminal by the corner of the stitch needle. A method of manufacturing an electrolytic capacitor in which a lead terminal is formed as a burr on the back side of an electrode foil by a side, and the burr formed on the back side of the electrode foil is pressed to connect the electrode foil and the lead terminal. - 前記電極箔のバリが電極箔の貫通孔の複数個所に形成される請求項２に記載の電解コンデンサの製造方法。 The method for producing an electrolytic capacitor according to claim 2, wherein burrs of the electrode foil are formed at a plurality of locations of the through holes of the electrode foil.
- 前記電極箔の貫通孔が角孔であり、断面角状のステッチ針の角部と電極箔の貫通孔の角部に対して３０～６０度回転させた位置にて、ステッチ針をリード端子に貫通させる請求項２又は３に記載の電解コンデンサの製造方法。 The through hole of the electrode foil is a square hole, and the stitch needle is used as a lead terminal at a position rotated 30 to 60 degrees with respect to the corner of the stitch needle having a square cross section and the corner of the through hole of the electrode foil. The manufacturing method of the electrolytic capacitor of Claim 2 or 3 made to penetrate.
- 前記電極箔の角孔に形成された電極箔のバリは、角孔の全ての辺に形成される請求項４に記載の電解コンデンサの製造方法。 The method for producing an electrolytic capacitor according to claim 4, wherein the burr of the electrode foil formed in the square hole of the electrode foil is formed on all sides of the square hole.
- 前記電極箔の貫通孔へのステッチ針の貫通状態における断面角状のステッチ針の角部が電極箔の貫通孔の内周の一部と圧接状態である請求項２乃至５いずれかに記載の電解コンデンサの製造方法。 6. A corner portion of a stitch needle having a square cross section in a state in which a stitch needle penetrates into the through hole of the electrode foil is in pressure contact with a part of an inner periphery of the through hole of the electrode foil. Manufacturing method of electrolytic capacitor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201080003282.0A CN102217014B (en) | 2009-03-31 | 2010-03-29 | Electrolytic capacitor and manufacturing method therefor |
| KR1020117011392A KR101683249B1 (en) | 2009-03-31 | 2010-03-29 | Method for manufacturing electrolytic capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-087682 | 2009-03-31 | ||
| JP2009087682A JP5321817B2 (en) | 2009-03-31 | 2009-03-31 | Electrolytic capacitor and manufacturing method thereof |
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| WO2010116668A1 true WO2010116668A1 (en) | 2010-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2010/002262 WO2010116668A1 (en) | 2009-03-31 | 2010-03-29 | Electrolytic capacitor and manufacturing method therefor |
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| Country | Link |
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| JP (1) | JP5321817B2 (en) |
| KR (1) | KR101683249B1 (en) |
| CN (1) | CN102217014B (en) |
| WO (1) | WO2010116668A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479616A (en) * | 2010-11-23 | 2012-05-30 | 尼吉康株式会社 | Pin frame and manufacturing device thereof, solid electrolytic capacitor and manufacturing method thereof |
| KR20190108113A (en) * | 2017-01-25 | 2019-09-23 | 닛뽄 케미콘 가부시끼가이샤 | Condenser and its manufacturing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7169686B2 (en) * | 2018-09-06 | 2022-11-11 | 湖北工業株式会社 | Lead wire terminal and its manufacturing method |
| WO2024034640A1 (en) * | 2022-08-10 | 2024-02-15 | 日本ケミコン株式会社 | Capacitor and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003282364A (en) * | 2002-03-25 | 2003-10-03 | Jcc Engineering Co Ltd | Electrode foil with terminal, and manufacturing method and apparatus thereof |
| JP2008091562A (en) * | 2006-09-29 | 2008-04-17 | Nippon Chemicon Corp | Electrolytic capacitor |
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| JPS54152953A (en) | 1978-05-24 | 1979-12-01 | Toshiba Corp | Digital-to-analog converter circuit |
| JPS56108230A (en) * | 1980-01-31 | 1981-08-27 | Nichicon Capacitor Ltd | Device for connecting lead terminal for condenser |
| JPS56129318A (en) * | 1980-03-14 | 1981-10-09 | Nichicon Capacitor Ltd | Lead terminal connecting device |
| JP4878967B2 (en) * | 2006-09-07 | 2012-02-15 | 三洋電機株式会社 | Electrolytic capacitor |
| CN101329944A (en) * | 2007-06-21 | 2008-12-24 | 湖南艾华科技集团有限公司 | Preprocessing method and apparatus for aging aluminium electrolysis capacitor |
| JP2009130338A (en) * | 2007-11-28 | 2009-06-11 | Elna Co Ltd | Connection method for tab terminal to aluminum electrode foil, aluminum electrolytic capacitor, and solid electrolytic capacitor |
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2009
- 2009-03-31 JP JP2009087682A patent/JP5321817B2/en active Active
-
2010
- 2010-03-29 WO PCT/JP2010/002262 patent/WO2010116668A1/en active Application Filing
- 2010-03-29 KR KR1020117011392A patent/KR101683249B1/en active IP Right Grant
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003282364A (en) * | 2002-03-25 | 2003-10-03 | Jcc Engineering Co Ltd | Electrode foil with terminal, and manufacturing method and apparatus thereof |
| JP2008091562A (en) * | 2006-09-29 | 2008-04-17 | Nippon Chemicon Corp | Electrolytic capacitor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479616A (en) * | 2010-11-23 | 2012-05-30 | 尼吉康株式会社 | Pin frame and manufacturing device thereof, solid electrolytic capacitor and manufacturing method thereof |
| JP2012114438A (en) * | 2010-11-23 | 2012-06-14 | Nichicon Corp | Lead frame and apparatus for manufacturing the same, and solid electrolytic capacitor and method for manufacturing the same |
| KR20190108113A (en) * | 2017-01-25 | 2019-09-23 | 닛뽄 케미콘 가부시끼가이샤 | Condenser and its manufacturing method |
| EP3576118A4 (en) * | 2017-01-25 | 2020-11-04 | Nippon Chemi-Con Corporation | Capacitor and method for manufacturing same |
| US11017956B2 (en) * | 2017-01-25 | 2021-05-25 | Nippon Chemi-Con Corporation | Capacitor and method for manufacturing same |
| KR102436450B1 (en) * | 2017-01-25 | 2022-08-24 | 닛뽄 케미콘 가부시끼가이샤 | Capacitor and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102217014A (en) | 2011-10-12 |
| CN102217014B (en) | 2014-03-26 |
| JP2010239059A (en) | 2010-10-21 |
| KR101683249B1 (en) | 2016-12-06 |
| KR20120004959A (en) | 2012-01-13 |
| JP5321817B2 (en) | 2013-10-23 |
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