JPH0797540B2 - Method for ultrasonic welding of electrode foil and lead terminal of aluminum electrolytic capacitor and anvil used for this method - Google Patents
Method for ultrasonic welding of electrode foil and lead terminal of aluminum electrolytic capacitor and anvil used for this methodInfo
- Publication number
- JPH0797540B2 JPH0797540B2 JP2217378A JP21737890A JPH0797540B2 JP H0797540 B2 JPH0797540 B2 JP H0797540B2 JP 2217378 A JP2217378 A JP 2217378A JP 21737890 A JP21737890 A JP 21737890A JP H0797540 B2 JPH0797540 B2 JP H0797540B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- anvil
- terminal
- electrode foil
- lead terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、アルミニウム電解コンデンサの電極箔と引出
端子との接続方法、ことに超音波による接続方法に関す
る。The present invention relates to a method for connecting an electrode foil of an aluminum electrolytic capacitor and a lead terminal, and more particularly to a method for connecting by ultrasonic waves.
［従来の技術］ 小型のアルミニウム電解コンデンサにおいては電極箔や
引出端子が小さいためステッチによる接続に代わって超
音波溶接が使用される場合がある。[Prior Art] In a small-sized aluminum electrolytic capacitor, ultrasonic welding may be used instead of stitch connection because the electrode foil and the lead terminal are small.
超音波溶接は第８図および第９図のようにホーン（発振
体）１とアンビル（固定台）２との間に、互いに超音波
溶接されるべき電極箔３と引出端子４とを配置し、アン
ビル２をホーン１の方に押し下げて引出端子４と電極箔
３をアンビル２とホーン１の間に挟み、アンビル２を下
方に加圧しながらホーン１を発振させ矢印Ｃ方向に超音
波周波数で振動させて電極箔３と引出端子４との接触面
を溶接するものである。なお、アンビルを固定しホーン
をアンビルの方に移動させて加圧するやり方もある。In ultrasonic welding, as shown in FIGS. 8 and 9, an electrode foil 3 and a lead-out terminal 4 to be ultrasonically welded to each other are arranged between a horn (oscillator) 1 and an anvil (fixing base) 2. , The anvil 2 is pushed down toward the horn 1 so that the lead-out terminal 4 and the electrode foil 3 are sandwiched between the anvil 2 and the horn 1, and the horn 1 is oscillated while pressing the anvil 2 downward and at an ultrasonic frequency in the direction of arrow C. The contact surface between the electrode foil 3 and the lead-out terminal 4 is welded by vibrating. There is also a method of fixing the anvil and moving the horn toward the anvil to apply pressure.
ホーン１の電極箔３と接する面には、ギザギザ状の凹凸
面1aが設けられ、この凹凸面1aは電極箔３を波形状に
し、電極箔３がホーン１からずれないように保持すると
共に、溶接され易いような溶接面を形成せしめる。一
方、アンビル２の引出端子４と接する面にも山と谷から
なるギザギザ状の凹凸2aが設けられ、アンビル２が引出
端子４に食い込んで引出端子４を保持固定するようにな
されている。The surface of the horn 1 that is in contact with the electrode foil 3 is provided with a rugged uneven surface 1a. The uneven surface 1a holds the electrode foil 3 in a wave shape and holds the electrode foil 3 so as not to shift from the horn 1. Form a welding surface that facilitates welding. On the other hand, the surface of the anvil 2 in contact with the lead-out terminal 4 is also provided with jagged irregularities 2a composed of peaks and troughs so that the anvil 2 bites into the lead-out terminal 4 to hold and hold the lead-out terminal 4.
［発明が解決しようとする課題］ アンビル２のギザギザ状の凹凸2aの山と山の距離（ピッ
チ）は例えば0.3mmになされ、また山の高さ（谷の深
さ）は種々の材質の電極箔や引出端子に対応できるよう
15/100mmぐらいになされている。[Problems to be Solved by the Invention] The distance (pitch) between the peaks of the jagged irregularities 2a of the anvil 2 is, for example, 0.3 mm, and the height of the peaks (depth of the valleys) is an electrode made of various materials. To support foil and lead terminals
It is about 15/100 mm.
このようなアンビル２を引出端子４に押圧していくと第
10図のようにアンビル２の凹凸2aが引出端子４の面4a
（電極箔３が溶接される面とは反対の面）に食い込み引
出端子４を保持するが、凹凸2aが部分的に食い込んでい
るだけなので、引出端子４をアンビル２から離した時、
引出端子４の面4aには第11図のようにバリ4bが生ずる。When such anvil 2 is pressed against the lead-out terminal 4,
As shown in Fig. 10, the unevenness 2a of the anvil 2 is the surface 4a of the lead-out terminal 4.
Although the lead-out terminal 4 is held on the surface opposite to the surface on which the electrode foil 3 is welded, the projections and depressions 2a are only partly cut in, so when the lead-out terminal 4 is separated from the anvil 2,
A burr 4b is formed on the surface 4a of the lead terminal 4 as shown in FIG.
このバリ4bは、コンデンサにすべく引出端子４がそれぞ
れ溶接された陽極および陰極電極箔３をセパレータを間
に挟みながら巻回すると、セパレータをつき破り異極の
電極箔３と接触しショートの原因となり不良品を生ずる
ことになる。This burr 4b is a cause of a short circuit when the anode and cathode electrode foils 3 to which the extraction terminals 4 are welded are wound while sandwiching the separator between them in order to form a capacitor, and the separator is torn and the electrode foil 3 of different polarity is contacted. Will result in defective products.
この発明は、電極箔と引出端子との接合部付近のバリに
よる不良品の生成を防止することを目的としている。It is an object of the present invention to prevent the production of defective products due to burrs near the joint between the electrode foil and the lead terminal.
［課題を解決するための手段］ この目的を達成するために、この発明では、山と谷から
なる凹凸面を有するアンビルを引出端子に押圧して引出
端子を保持しながら電極箔と引出端子とを超音波溶接す
る方法において、引出端子に食い込んだアンビルの凹凸
面の谷と引出端子との間に隙間がないようにアンビルを
押圧して引出端子を保持するように構成した。[Means for Solving the Problem] In order to achieve this object, in the present invention, an anvil having an uneven surface composed of peaks and valleys is pressed against a lead terminal to hold the lead terminal, and an electrode foil and a lead terminal are provided. In the method of ultrasonic welding described above, the drawing terminal is held by pressing the anvil so that there is no gap between the drawing terminal and the trough of the uneven surface of the anvil that bites into the drawing terminal.
また、アルミニウム電解コンデンサの電極箔と引出端子
との超音波溶接に使用するアンビルにおいて、引出端子
と接する面に山と谷からなる凹凸面を有し、超音波溶接
の際、引出端子の材質に適した圧力で引出端子方向に押
圧された際に引出端子に食い込んだ山と谷にからなる凹
凸面がその谷まで完全に引出端子の面に接するような深
さになされているように構成した。Also, in the anvil used for ultrasonic welding of the electrode foil of the aluminum electrolytic capacitor and the lead-out terminal, the surface contacting the lead-out terminal has an uneven surface consisting of peaks and troughs. It was configured so that the uneven surface composed of peaks and valleys that bite into the lead terminal when pressed in the direction of the lead terminal with an appropriate pressure is deep enough to completely contact the surface of the lead terminal up to the valley. .
［作用］ アンビルが加圧されて凹凸面の山が引出端子に食い込ん
でいった時、谷まで完全に引出端子と接し引出端子の面
と谷との間に隙間ができないので山が引出端子に食い込
んでいく過程でバリができても押しつぶされ消失する。
よって引出端子にはバリ等が生ぜずアンビルの凹凸面の
山により形成された凹所を除いて、周囲の面と同一平面
となる。[Operation] When the anvil is pressed and the ridges of the uneven surface bite into the lead terminal, there is no gap between the lead terminal surface and the valley because there is no gap between the lead terminal and the lead terminal. Even if burr is formed in the process of biting, it will be crushed and disappear.
Therefore, burrs do not occur on the lead terminal, and the lead terminal is flush with the surrounding surface, except for the recess formed by the peaks of the uneven surface of the anvil.
［実施例］ 以下、第１図ないし第７図にもとづいてこの発明の実施
例について説明する。なお、従来例と同じ部材は同じ符
号を使用する。[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. The same members as those in the conventional example have the same reference numerals.
第１図はこの発明のアルミニウム電解コンデンサの電極
箔と引出端子との接続方法に用いるアンビルの一実施例
を示し、アンビル（固定台）12にはギザギザ状の平目も
しくは基盤目状の凹凸面12aが設けられている。凹凸面1
2aは山12bと谷12c（第２図）が平行に配置されている。
山の高さ（谷の深さ）Ａはアンビルが加圧されて引出端
子14に食い込んでいった時、第10図（従来例）のように
引出端子の面と谷との間に隙間Ｄができずに、第３図の
ように谷12cまで完全に引出端子14と接するような高さ
になされている。谷の角度Ｂは例えば90°前後ぐらいに
なされる。FIG. 1 shows an embodiment of an anvil used in the method of connecting the electrode foil and the lead terminal of the aluminum electrolytic capacitor of the present invention. The anvil (fixing base) 12 has a jagged flat or base-like uneven surface 12a. Is provided. Uneven surface 1
In 2a, peaks 12b and valleys 12c (Fig. 2) are arranged in parallel.
The height A of the peak (depth of the valley) A is a gap D between the surface of the lead terminal and the valley as shown in FIG. 10 (conventional example) when the anvil is pressed into the lead terminal 14. However, as shown in FIG. 3, the height is set so as to completely contact the lead terminal 14 up to the valley 12c. The angle B of the valley is about 90 °, for example.
アンビル12に加えられる圧力は、引出端子14の材質によ
り例えば1300g〜2600gぐらいの範囲で変わる。山の高さ
（谷の深さ）Ａは各材質に適した圧力で押圧された時
に、引出端子14の面14bとアンビル12の谷12cとの間に隙
間ができないような高さになされている。従って、引出
端子14の材質が柔らかくアンビル12への加圧力が弱くさ
れる時は山12bの高さは低くなり、引出端子14の材質が
固く加圧力が強くなる時は山12bの高さは高くなされ
る。よってアンビル12は引出端子14の材質や、アンビル
12への加圧力等に応じて取り替えられることになる。The pressure applied to the anvil 12 varies depending on the material of the lead terminal 14, for example, in the range of 1300 g to 2600 g. The height A of the peak (the depth of the valley) is set such that no gap is formed between the surface 14b of the lead terminal 14 and the valley 12c of the anvil 12 when pressed with a pressure suitable for each material. There is. Therefore, when the material of the lead-out terminal 14 is soft and the pressure applied to the anvil 12 is weakened, the height of the ridge 12b is low, and when the material of the lead-out terminal 14 is hard and the applied pressure is strong, the height of the ridge 12b is low. Made high Therefore, the anvil 12 is made of the material of the lead terminal 14 and the anvil.
It will be replaced according to the pressure applied to 12.
例えば、加圧力が1300gぐらいの時、山の高さは1/100mm
〜2/100mmぐらいでピッチ0.02mm〜0,04mm、加圧力が260
0gぐらいの時、山の高さは1/10mmぐらいでピッチは0.2m
mぐらいになされる。For example, when the applied pressure is about 1300 g, the height of the mountain is 1/100 mm
~ 2 / 100mm pitch 0.02mm ~ 0.04mm, pressure 260
At 0g, the height of the mountain is about 1 / 10mm and the pitch is 0.2m.
It is done in about m.
超音波溶接は、ホーン１の上に電極箔３を配置し、その
上に引出端子14を置きさらにその上にアンビル12を配置
し、アンビル12を押し下げて電極箔３と引出端子14とを
ホーン１とアンビル12との間に挟み、さらにアンビル12
を各材質に適した圧力で押圧しながらホーン１を発振さ
せ超音波周波数で振動させて電極箔３と引出端子14との
接触面15（第５図）を溶接する。In ultrasonic welding, the electrode foil 3 is placed on the horn 1, the lead terminals 14 are placed on the horn 1, the anvil 12 is placed on the lead foil 14, and the anvil 12 is pushed down to horn the electrode foil 3 and the lead terminals 14. Sandwiched between 1 and 12 anvils, then 12 anvils
The horn 1 is oscillated while being pressed with a pressure suitable for each material and vibrated at an ultrasonic frequency to weld the contact surface 15 (FIG. 5) between the electrode foil 3 and the lead terminal 14.
アンビル12の凹凸面12aの山12bの高さ（谷の深さ）Ａは
各材質に適した圧力で押圧された時に、引出端子14の面
14bとアンビル12の谷12cとの間に隙間ができないような
高さになされているので山12bが引出端子14に食い込ん
でいく過程でバリができても押しつぶされ消失する。The height (valley depth) A of the peak 12b of the uneven surface 12a of the anvil 12 is the surface of the lead terminal 14 when pressed with a pressure suitable for each material.
Since the height is set so that there is no gap between 14b and the valley 12c of the anvil 12, even if a burr is formed in the process of the mountain 12b biting into the lead-out terminal 14, it is crushed and disappears.
よって第４図および第５図のようにアンビル12から離さ
れた引出端子14にはバリ等が生ぜず、アンビルの凹凸面
12aの山12bにより形成された凹所14cを除いて、周囲の
面14bと同一平面となる。従って、コンデンサにすべく
引出端子14がそれぞれ溶接された陽極および陰極電極箔
３をセパレータを間に挟みながら巻回しても、バリがな
いのでセパレータをつき破り異極の電極箔と接触しショ
ートするようなことがない。なお、アンビルの凹凸面12
aの山と谷は第２図および第３図のように連続されず
に、第６図のようにして平らな谷部分12dを設けてもよ
い。この場合、アンビルを離した後の引出端子14の面は
第７図のようになる。Therefore, as shown in FIGS. 4 and 5, burrs are not formed on the lead-out terminal 14 separated from the anvil 12, and the uneven surface of the anvil is not formed.
It is flush with the surrounding surface 14b except for the recess 14c formed by the peak 12b of 12a. Therefore, even if the anode and cathode electrode foils 3 to which the lead-out terminals 14 are welded to form a capacitor are wound while sandwiching the separator between them, since there is no burr, the separator is torn and the electrode foil of different polarity is contacted and short-circuited. There is no such thing. In addition, the uneven surface of the anvil 12
The peaks and valleys of a may not be continuous as in FIGS. 2 and 3, but flat valley portions 12d may be provided as in FIG. In this case, the surface of the lead terminal 14 after the anvil is separated is as shown in FIG.
アンビル１の凹凸面12aは山12bと谷12cが平行に配置さ
れた平目状の外に、四角錐状の山が格子状ないし基盤目
状に配列されたものや、あるいは斜めに交差するように
配された綾目状のものでもよい。The uneven surface 12a of the anvil 1 should have a flat pyramid shape in which peaks 12b and valleys 12c are arranged in parallel with one another, in which pyramid-shaped pyramids are arranged in a grid pattern or a matrix pattern, or cross diagonally. It may be arranged in a twill pattern.
［発明の効果］ 以上説明したようにこの発明によれば、引出端子はアン
ビルの凹凸面により凹凸面の谷と引出端子の間に隙間が
ないように押圧して保持されるので、アンビルの凹凸面
の山が引出端子に食い込んでいく過程でバリができても
押しつぶされ、従って引出端子にはバリ等が生ぜず、引
出端部にはアンビルの凹凸面の山により形成された凹所
を除いて、周囲の面と同一平面となり、引出端子がそれ
ぞれ溶接された陽極および陰極電極箔をセパレータを間
に挟みながら巻回しても、バリがないためセパレータを
つき破り異極の電極箔と接触しショートするようなこと
がなく不良品を生ずる可能性が少なくなる利点がある。As described above, according to the present invention, since the lead terminal is pressed and held by the uneven surface of the anvil so that there is no gap between the valley of the uneven surface and the lead terminal, the uneven shape of the anvil is provided. Even if burrs are formed in the process that the surface ridges bite into the extraction terminal, they will be crushed, so no burrs or the like will occur on the extraction terminal, and the recesses formed by the ridges on the uneven surface of the anvil will be removed at the extraction end. , It is flush with the surrounding surface, and even if the anode and cathode electrode foils with the lead-out terminals welded to each other are wound with the separator in between, there is no burr, and the separator breaks and contacts the electrode foil of the different polarity. There is an advantage that a defective product is less likely to occur without causing a short circuit.
第１図はこの発明の超音波溶接方法に使用するアンビル
の斜視図、第２図はアンビルの凹凸面の部分拡大図、第
３図はアンビルが加圧され凹凸面が引出端子に食い込ん
でいる状態を示す部分断面図、第４図はアンビルを引き
離した状態の引出端部の部分断面図、第５図は電極箔が
超音波溶接された引出端子を示す図、第６図は別の実施
例のアンビルが加圧され凹凸面が引出端子に食い込んで
いる状態を示す部分断面図、第７図はそのアンビルを引
き離した状態の引出端部の部分断面図、第８図は超音波
溶接を説明する図、第９図は第８図のＥ−Ｅ線方向に見
た断面図、第10図は従来のアンビルが加圧され引出端子
に食い込んでいる状態を示す部分断面図、第11図は第10
図の状態からアンビルを引き離した状態の引出端部の部
分断面図である。 図中、12はアンビル、12aは凹凸面、12bは山、12cは
谷、14は引出端子、14bは面、14cは凹所である。FIG. 1 is a perspective view of an anvil used in the ultrasonic welding method of the present invention, FIG. 2 is a partially enlarged view of the uneven surface of the anvil, and FIG. 3 is the anvil being pressed and the uneven surface bites into the lead-out terminal. FIG. 4 is a partial cross-sectional view showing a state, FIG. 4 is a partial cross-sectional view of a lead-out end in a state where the anvil is separated, FIG. 5 is a view showing a lead-out terminal to which an electrode foil is ultrasonically welded, and FIG. 6 is another embodiment. Fig. 7 is a partial cross-sectional view showing a state in which the anvil of the example is pressed and the uneven surface bites into the lead-out terminal, Fig. 7 is a partial cross-sectional view of the lead-out end with the anvil separated, and Fig. 8 shows ultrasonic welding. FIG. 9 is an explanatory view, FIG. 9 is a sectional view taken along the line EE of FIG. 8, and FIG. 10 is a partial sectional view showing a state in which a conventional anvil is pressed into the lead-out terminal, and FIG. Is the tenth
FIG. 6 is a partial cross-sectional view of the pull-out end portion in a state where the anvil is pulled away from the state shown in the figure. In the figure, 12 is an anvil, 12a is an uneven surface, 12b is a peak, 12c is a valley, 14 is a lead terminal, 14b is a surface, and 14c is a recess.
Claims (2)
引出端子に押圧して引出端子を保持しながら電極箔と引
出端子とを超音波溶接する方法において、引出端子に食
い込んだアンビルの凹凸面の谷と引出端子との間に隙間
がないようにアンビルを押圧して引出端子を保持するこ
とを特徴とするアルミニウム電解コンデンサの電極箔と
引出端子との超音波溶接方法。1. A method of ultrasonically welding an electrode foil and a lead terminal while holding the lead terminal by pressing the anvil having an uneven surface having peaks and valleys to the lead terminal, and the unevenness of the anvil biting into the lead terminal. An ultrasonic welding method of an electrode foil of an aluminum electrolytic capacitor and a lead terminal, characterized in that the lead terminal is held by pressing an anvil so that there is no gap between the surface valley and the lead terminal.
出端子との超音波溶接に使用するアンビルにおいて、引
出端子と接する面に山と谷からなる凹凸面を有し、超音
波溶接の際、引出端子の材質に適した圧力で引出端子方
向に押圧された際に引出端子に食い込んだ山と谷からな
る凹凸面がその谷まで完全に引出端子の面に接するよう
な深さになされていることを特徴とする、アルミニウム
電解コンデンサの電極箔と引出端子との超音波溶接に使
用するアンビル。2. An anvil used for ultrasonic welding between an electrode foil of an aluminum electrolytic capacitor and a lead-out terminal, wherein the surface contacting the lead-out terminal has an uneven surface composed of peaks and troughs, and the lead-out terminal during ultrasonic welding. The uneven surface consisting of peaks and troughs that bite into the lead-out terminal when pressed in the direction of the lead-out terminal with a pressure suitable for the material of is deep enough to touch the surface of the lead-out terminal up to the valley. An anvil used for ultrasonic welding of the electrode foil of the aluminum electrolytic capacitor and the lead terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217378A JPH0797540B2 (en) | 1990-08-18 | 1990-08-18 | Method for ultrasonic welding of electrode foil and lead terminal of aluminum electrolytic capacitor and anvil used for this method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217378A JPH0797540B2 (en) | 1990-08-18 | 1990-08-18 | Method for ultrasonic welding of electrode foil and lead terminal of aluminum electrolytic capacitor and anvil used for this method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0499307A JPH0499307A (en) | 1992-03-31 |
| JPH0797540B2 true JPH0797540B2 (en) | 1995-10-18 |
Family
ID=16703237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2217378A Expired - Lifetime JPH0797540B2 (en) | 1990-08-18 | 1990-08-18 | Method for ultrasonic welding of electrode foil and lead terminal of aluminum electrolytic capacitor and anvil used for this method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0797540B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2586260B2 (en) * | 1991-10-22 | 1997-02-26 | 三菱電機株式会社 | Adaptive blocking image coding device |
| JP4310621B2 (en) * | 2003-03-31 | 2009-08-12 | 日本ケミコン株式会社 | Electrolytic capacitor manufacturing method and apparatus, and electrolytic capacitor |
| JP4863896B2 (en) * | 2007-01-31 | 2012-01-25 | ホリストン ポリテック株式会社 | Solid electrolytic capacitor element and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6091620A (en) * | 1983-10-25 | 1985-05-23 | マルコン電子株式会社 | Method of connecting electrode foil of electrolytic condenser to lead terminal |
-
1990
- 1990-08-18 JP JP2217378A patent/JPH0797540B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0499307A (en) | 1992-03-31 |
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