JP2013197431A - Metalization film capacitor - Google Patents

Metalization film capacitor Download PDF

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JP2013197431A
JP2013197431A JP2012064729A JP2012064729A JP2013197431A JP 2013197431 A JP2013197431 A JP 2013197431A JP 2012064729 A JP2012064729 A JP 2012064729A JP 2012064729 A JP2012064729 A JP 2012064729A JP 2013197431 A JP2013197431 A JP 2013197431A
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external terminal
terminal
connection
lead
film capacitor
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katsuhiro Kogure
克洋 小暮
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Lincstech Circuit Co Ltd
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Hitachi AIC Inc
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Abstract

PROBLEM TO BE SOLVED: To obtain a metalization film capacitor capable of handling a large current by eliminating a malfunction occurring at a connection between an external lead-out terminal and an external terminal while maintaining humidity resistance and vibration resistance in a metalization film capacitor including: a capacitor element using a metalization film; a cylindrical case with a bottom having an opening at an upper surface for housing the capacitor element; a sealing body for sealing the opening of the case; a pair of external terminals provided with the sealing body; and a lead-out terminal connected respectively to the external terminal and a metallicon electrode.SOLUTION: The metalization film capacitor is provided with an extension part that is integrally extended from a tip part of a lead-out terminal at a connection of the lead-out terminal connected to an external terminal, wherein the extension part is disposed at an inner side than a bottom periphery of the external terminal, and a notch or a through-hole is provided at the connection of the lead-out terminal which is connected to the external terminal.

Description

本発明は、金属化フィルムを使用した単数または複数のコンデンサ素子を、開口部があるケースに収納し、封口体で封止した金属化フィルムコンデンサに関するものである。   The present invention relates to a metallized film capacitor in which one or more capacitor elements using a metallized film are housed in a case having an opening and sealed with a sealing body.

従来、金属化フィルムコンデンサは、コンデンサ素子の両端の電極に引き出し端子を接続し、樹脂ケースに収納した後、樹脂ケース内を絶縁樹脂で充填していた。そして、絶縁樹脂よりはみ出した引き出し端子部分を外部と接続する外部端子として使用していた。   Conventionally, in a metallized film capacitor, a lead terminal is connected to electrodes at both ends of a capacitor element, and the resin case is filled with an insulating resin after being housed in a resin case. The lead terminal portion protruding from the insulating resin is used as an external terminal for connecting to the outside.

近年、環境への配慮から、省エネルギー化、高効率化に適したインバータ回路が採用され、このインバータ回路の使用電圧が高いことから、コンデンサのなかでも、フィルムコンデンサを採用する傾向がある。特に車載等の移動体などの用途では、耐湿性や耐振動性など使用される条件が、広い温度範囲で長期にわたり求められるようになってきた。
そのため、従来のような、引き出し端子の先の部分を外部端子として使用する代わりに、特許文献1には、ケースの開口部に封口体を設けて耐湿性を改善させ、またこの封口体に外部端子を設けて、引き出し端子と接続することにより耐振動性を改善する技術が開示されている。
In recent years, in consideration of the environment, an inverter circuit suitable for energy saving and high efficiency has been adopted, and since the working voltage of this inverter circuit is high, there is a tendency to adopt a film capacitor among the capacitors. In particular, in applications such as on-vehicle moving bodies, conditions for use such as moisture resistance and vibration resistance have been demanded over a long period of time in a wide temperature range.
Therefore, instead of using the tip portion of the lead terminal as an external terminal as in the prior art, in Patent Document 1, a sealing body is provided at the opening of the case to improve moisture resistance. A technique for improving vibration resistance by providing a terminal and connecting it to a lead terminal is disclosed.

特開2011−77282号公報JP 2011-77282 A

しかし、上記の様なインバータ回路においても、車載等の移動体などの用途では、大電流を扱うことが多く、この場合、引き出し端子と外部端子との接続のところで、接続容量不足のため発熱問題を生じやすい。   However, even in the inverter circuit as described above, a large amount of current is often handled in applications such as on-vehicle moving bodies. In this case, the problem of heat generation occurs due to insufficient connection capacity at the connection between the lead-out terminal and the external terminal. It is easy to produce.

本発明は、ケース付き金属化フィルムコンデンサの耐湿性と耐振動性を維持しながら、外部引き出し端子と外部端子との接続のところで発生する不具合を解消させ、大電流を扱える金属化フィルムコンデンサを得ることを目的にしている。   The present invention provides a metallized film capacitor capable of handling a large current by solving the problem that occurs at the connection between the external lead terminal and the external terminal while maintaining the moisture resistance and vibration resistance of the metallized film capacitor with a case. It is aimed at that.

本発明は、課題を解決するために、金属化フィルムを使用し両端にメタリコン電極を設けた単数または複数のコンデンサ素子と、このコンデンサ素子を収容する、上端面に開口部のある有底筒状のケースと、このケースの開口部を封止する、外表面と内表面とを有する封口体と、この封口体の外表面から内表面間を貫通して設けた一対の外部端子と、この外部端子と前記メタリコン電極との間をそれぞれ接続した引き出し端子とを有する金属化フィルムコンデンサにあって、前記外部端子と接続する前記引き出し端子の接続部分には、その引き出し端子の先端部から一体に延設された延設部を設けていて、その延設部は、前記外部端子の接続端部の外周よりも内側に設けられていて、なおかつ、前記外部端子と接続する前記引き出し端子の接続部分には、切り欠き部または貫通穴部が設けられている金属化フィルムコンデンサを提案するものである。   In order to solve the problem, the present invention provides a single or a plurality of capacitor elements using metallized films and provided with metallicon electrodes at both ends, and a bottomed cylindrical shape having an opening on the upper end surface for accommodating the capacitor elements. A sealing body having an outer surface and an inner surface that seals the opening of the case, a pair of external terminals provided between the outer surface of the sealing body and the inner surface, and the outer In the metallized film capacitor having a lead terminal connected between the terminal and the metallicon electrode, the connection portion of the lead terminal connected to the external terminal extends integrally from the leading end of the lead terminal. An extended portion is provided, and the extended portion is provided on the inner side of the outer periphery of the connection end of the external terminal and is connected to the lead terminal connected to the external terminal. In part, it proposes a metallized film capacitor notches or the through hole is provided.

本発明によれば、ケース付き金属化フィルムコンデンサの耐湿性と耐振動性を維持しながら、引き出し端子と外部端子との接続のところで発生する不具合を解消させ、大電流に耐える金属化フィルムコンデンサを提供することができる。   According to the present invention, while maintaining the moisture resistance and vibration resistance of the metallized film capacitor with a case, the problem that occurs at the connection between the lead terminal and the external terminal is eliminated, and the metallized film capacitor that can withstand a large current is obtained. Can be provided.

本発明に係る金属化フィルムコンデンサの外部端子と引き出し端子との接続部分を示している。The connection part of the external terminal and extraction terminal of the metallized film capacitor which concerns on this invention is shown. 本発明に係る金属化フィルムコンデンサの断面図を模式的に示している。1 schematically shows a cross-sectional view of a metallized film capacitor according to the present invention. 発明に係る金属化フィルムコンデンサの別の外部端子と引き出し端子との接続部分を示している。The connection part of another external terminal and lead-out terminal of the metallized film capacitor which concerns on invention is shown. 本発明に係る金属化フィルムコンデンサの別の断面図を模式的に示している。FIG. 4 schematically shows another cross-sectional view of a metallized film capacitor according to the present invention.

本発明のコンデンサ素子は、ポリエチレンテレフタレートやポリプロピレン等のフィルム表面に、アルミニウムや銅、亜鉛などの金属を蒸着した金属化フィルムや、前記金属の箔を、フィルムを介して重ねて巻回または積層し、両端面に亜鉛、銅、アルミニウムなどの金属を溶射し、下記に示すメタリコン電極を設けた一般的なものである。断面形状は巻回した場合は円形、それをつぶした場合は偏平形、積層したものは四角形となるが、偏平形や四角形の方がその側面が平面となり収納効率、放熱性が向上する。   The capacitor element of the present invention is obtained by winding or laminating a metallized film obtained by vapor-depositing a metal such as aluminum, copper, or zinc on a film surface such as polyethylene terephthalate or polypropylene, or by laminating the metal foil through the film. In general, metal such as zinc, copper, and aluminum is sprayed on both end faces, and a metallicon electrode shown below is provided. The cross-sectional shape is circular when it is wound, flat when it is crushed, and quadrilateral when it is stacked, but the side of the flat or square is flat and the storage efficiency and heat dissipation are improved.

本発明のメタリコン電極は、銅、亜鉛、アルミニウム、錫、はんだ等の金属または合金からなり、溶射によって形成されたコンデンサ素子の端面に設けた電極で、一般的にフィルムコンデンサに使用しているものが使用できる。場合によっては、メタリコン電極の表面にめっきを施してもよい。   The metallicon electrode of the present invention is an electrode provided on the end face of a capacitor element made of a metal or an alloy such as copper, zinc, aluminum, tin, or solder, and is generally used for a film capacitor. Can be used. In some cases, the surface of the metallicon electrode may be plated.

本発明のケースは、上端面に開口部のある有底筒状の容器で、一般的にフィルムコンデンサに使用しているもので、プラスチックまたは金属により形成することができる。プラスチックであれば、たとえば、ポリエチレンテレフタレート系、ポリブチレンテレフタレート系、ポリカーボネート系、またはポリフェニレンスルフィド系などの樹脂を用いることができる。金属であれば、たとえば、アルミニウム、マグネシウム、鉄、ステンレス、銅またはそれらの合金などを用いることができる。   The case of the present invention is a bottomed cylindrical container having an opening on the upper end surface, and is generally used for a film capacitor, and can be formed of plastic or metal. If it is a plastic, for example, a resin such as polyethylene terephthalate, polybutylene terephthalate, polycarbonate, or polyphenylene sulfide may be used. As long as it is a metal, for example, aluminum, magnesium, iron, stainless steel, copper, or an alloy thereof can be used.

本発明の封口体は、外表面と内表面と側面を有し、ケースの開口部を封止するもので、ケースの開口部に接着、固着または融着されるものである。   The sealing body of the present invention has an outer surface, an inner surface, and side surfaces, seals the opening of the case, and is bonded, fixed, or fused to the opening of the case.

本発明の外部端子は、外部との接続用の端子で、封口体の外表面から内表面間を貫通する。形状は、単純な柱状体のほか、封口体からぬけないように、封口体の内表面と接するように柱状体の胴部に鍔部を設けてもよい。そして、この鍔部と、封口体の外表面と接する側に設けた留め具とで封口体を挟むようにすると、外部端子が封口体に固定される。留め具はたとえば柱状体の胴部に設けた溝部等の所に差し込まれる。また、外部とは、ボルトにより接続できるような、外部端子の胴部の鍔部とは反対側に設けたネジ加工部等により接続される。
外部端子本体の材質としてはたとえば、銅、アルミニウム、鉄、ニッケル、ステンレス、燐青銅等の金属または合金からなるもの、表面に錫、はんだ等をめっきする場合もある。胴部は、直径が1mmから30mm程度の柱状形でその大きさは流れる電気量により決定する。胴部または鍔部の外周形は、多角形または非円形とすると、外部端子の軸方向に回転を防止するために好ましい。最終的には注入される絶縁樹脂により鍔部の外周が充填により回転が固定される。一般的には6角形または4角形で、楕円形、波状の円形でもよい。鍔部がない場合には、胴部の外周形特に封口体部分またはそれよりケース内側が多角形または非円形とすると、外部端子の軸方向に回転するのを防止するために好ましい。
The external terminal of the present invention is a terminal for connection to the outside, and penetrates between the outer surface and the inner surface of the sealing body. In addition to a simple columnar body, the shape may be provided with a flange on the body of the columnar body so as to be in contact with the inner surface of the sealing body so as not to escape from the sealing body. Then, when the sealing body is sandwiched between the collar and a fastener provided on the side in contact with the outer surface of the sealing body, the external terminal is fixed to the sealing body. For example, the fastener is inserted into a groove or the like provided in the body of the columnar body. Further, it is connected to the outside by a threaded portion provided on the side opposite to the collar portion of the body portion of the external terminal, which can be connected by a bolt.
As the material of the external terminal main body, for example, a material made of a metal or an alloy such as copper, aluminum, iron, nickel, stainless steel, phosphor bronze, or the like may be plated with tin, solder, or the like. The trunk is a columnar shape with a diameter of about 1 mm to 30 mm, and the size is determined by the amount of electricity flowing. The outer peripheral shape of the body portion or the collar portion is preferably a polygonal shape or a non-circular shape in order to prevent rotation in the axial direction of the external terminal. Finally, the rotation of the outer periphery of the collar portion is fixed by filling with the injected insulating resin. Generally, it is a hexagon or a quadrangle, and may be an ellipse or a wavy circle. In the case where there is no flange, it is preferable that the outer peripheral shape of the body portion, particularly the sealing body portion or the inner side of the case is polygonal or non-circular, in order to prevent the external terminal from rotating in the axial direction.

本発明の引き出し端子は、外部端子とメタリコン電極との間を電気的に接続するものである。変形可能な金属の箔、薄板が使用でき、はんだ接続、溶接、圧接可能なものが使用できるが、広い接続面積が可能で、そのため大電流が扱える点ではんだ接続が好ましい。特に電気的良導体として銅または銅合金が好ましく、表面に錫やはんだ等のめっき設けてもよい。また接続部分以外の部分を絶縁物で被覆することもある。
外部端子と接続する引き出し端子の接続部分には、その引き出し端子の先端部から一体に延設された延設部を設けていて、その延設部は、外部端子の接続端部の外周よりも内側に設けられていて、なおかつ、外部端子と接続する引き出し端子の接続部分には、切り欠き部または貫通穴部が設けられている。
The lead terminal of the present invention electrically connects the external terminal and the metallicon electrode. Deformable metal foils and thin plates can be used, and those that can be soldered, welded, and pressed can be used. However, a large connection area is possible, and therefore soldering is preferable in that a large current can be handled. In particular, copper or a copper alloy is preferable as a good electrical conductor, and a surface such as tin or solder may be provided on the surface. In addition, a portion other than the connection portion may be covered with an insulator.
The connecting portion of the lead terminal connected to the external terminal is provided with an extending portion integrally extending from the leading end portion of the lead terminal, and the extending portion is more than the outer periphery of the connecting end portion of the external terminal. A cutout portion or a through-hole portion is provided in a connection portion of the lead terminal that is provided on the inner side and is connected to the external terminal.

以下、本発明を図面に示す実施の形態に基づいて説明する。
図1は、本発明に係る金属化フィルムコンデンサの外部端子と引き出し端子との接続部分を示している。図1では、はんだ付け等による接続の前の状態を示している。また、接続部分が見やすいように、通常の表示とは逆さまとなっている。
引き出し端子1には、その先端部から一体に延設された延設部2を設けていて、その延設部2は、柱状の外部端子3との接続部分の端部外周よりも内側に設けられていて、なおかつ、外部端子3と接続する引き出し端子1の接続部分には、貫通穴部4が設けられている。図1では、外部端子3と引き出し端子1との接続は、半分が貫通穴部4のある引き出し端子1の本体部分と、残り半分が延設部2とで接続している。貫通穴部4により、熱経路が分断されるので、貫通穴部4より先と延設部2とが加熱しやすくなる。そして、はんだによる接続の場合、外部端子3と引き出し端子1との接続は、延設部2と貫通穴部4の所を重点的にはんだ付けにより行う(図省略)。
引き出し端子1の幅は、流れる電流密度により設計されるが、外部端子3との接続部分で、外部端子3の直径よりも幅が広いと、外部端子3が、封口体9から抜き出るのを防止することができる点で好ましい。
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
FIG. 1 shows a connection portion between an external terminal and a lead terminal of a metallized film capacitor according to the present invention. FIG. 1 shows a state before connection by soldering or the like. Moreover, it is upside down from a normal display so that a connection part can be seen easily.
The lead terminal 1 is provided with an extension portion 2 that is integrally extended from the tip portion thereof, and the extension portion 2 is provided inside the outer periphery of the end portion of the connection portion with the columnar external terminal 3. In addition, a through hole portion 4 is provided in a connection portion of the lead terminal 1 connected to the external terminal 3. In FIG. 1, half of the connection between the external terminal 3 and the lead terminal 1 is connected by the main body portion of the lead terminal 1 having the through hole portion 4 and the other half by the extending portion 2. Since the heat path is divided by the through hole portion 4, it is easy to heat the extension portion 2 beyond the through hole portion 4. In the case of connection by solder, the connection between the external terminal 3 and the lead terminal 1 is performed by soldering mainly at the extended portion 2 and the through hole portion 4 (not shown).
The width of the lead terminal 1 is designed according to the current density that flows. However, if the width of the lead terminal 1 is wider than the diameter of the external terminal 3 at the connection portion with the external terminal 3, the external terminal 3 is pulled out from the sealing body 9. It is preferable in that it can be prevented.

ところで、延設部2と貫通穴部4とがそれらと接続する外部端子3の端面外周よりも外側まで大きいと、はんだが外部端子3と引き出し端子1との接続面よりも外部端子3の側面側にはみ出しやすくなり、外部端子3が封口体9に設けた外部端子用の穴を貫通し難くなり好ましくない。
また、必ずしも必要ではないが、引き出し端子1と外部端子3との接続部分には、外部端子3の端部に設けた突起5と、その突起5を貫通する位置決め用穴6が引き出し端子1に設けられている。突起5と位置決め用穴6は、断面が円形のほか、多角形にすると外部端子3の軸回転を防止することができる。また、突起5を外部端子3の軸からずらすことによっても、外部端子3の軸回転を防止することができる。
By the way, when the extended portion 2 and the through hole portion 4 are larger than the outer periphery of the end surface of the external terminal 3 connected to the extended portion 2 and the through hole portion 4, the side surface of the external terminal 3 is larger than the connection surface of the external terminal 3 and the lead terminal 1 This is not preferable because the external terminal 3 is easily protruded to the side and the external terminal 3 is difficult to penetrate the hole for the external terminal provided in the sealing body 9.
Although not necessarily required, a protrusion 5 provided at an end of the external terminal 3 and a positioning hole 6 penetrating the protrusion 5 are provided in the connection portion between the lead terminal 1 and the external terminal 3. Is provided. If the protrusion 5 and the positioning hole 6 are polygonal in cross section, the shaft rotation of the external terminal 3 can be prevented. Also, the shaft rotation of the external terminal 3 can be prevented by shifting the protrusion 5 from the axis of the external terminal 3.

図2は、本発明に係る金属化フィルムコンデンサの断面図を模式的に示している。
上方に開口部を有するケース7内に、コンデンサ素子8を収納し、開口部を封口体9で封口した構造になっている。
外部端子3は、図1で示すように、引き出し端子1の一方の端とはんだ等により接続されている。また、引き出し端子1のもう一方の端とは、コンデンサ素子8の両端に設けたメタリコン電極10とそれぞれ接続されている。また、外部端子3は、封口体9の外表面から突き出すように設けている。また、封口体9に設けた注入孔10より、ケース7内部に絶縁樹脂11を注入し、なおかつ注入孔10より外表面にはみ出した絶縁樹脂11をせき止めるダム形状の周回体12を封口体9に設けている。はみ出した絶縁樹脂11は、注入孔10を埋めるだけではなく、絶縁樹脂11が外部端子3と封口体9とのすき間を埋めるので、外部端子3と封口体9との間の気密性も向上する。また、絶縁樹脂11の量は、周回体12の高さ以下であればよく、ばらつきがある程度あってもよい。
絶縁樹脂11は、コンデンサの絶縁充填材で、一般的にフィルムコンデンサの充填用に使用しているものが使用でき、エポキシ樹脂、ウレタン樹脂などの樹脂にフィラー等を混ぜたものである。フィラーとしては、珪素、チタン、アルミニウム、カルシウム、ジルコニウム、マグネシウム等の水酸化物、酸化物、炭化物、窒化物、これらの複合物などが使用できる。必要があれば、難燃剤、酸化防止剤を添加してもよい。
FIG. 2 schematically shows a cross-sectional view of a metallized film capacitor according to the present invention.
A capacitor element 8 is housed in a case 7 having an opening on the upper side, and the opening is sealed with a sealing body 9.
As shown in FIG. 1, the external terminal 3 is connected to one end of the lead terminal 1 by solder or the like. Further, the other end of the lead terminal 1 is connected to the metallized electrodes 10 provided at both ends of the capacitor element 8, respectively. The external terminal 3 is provided so as to protrude from the outer surface of the sealing body 9. Further, the sealing body 9 is provided with a dam-shaped circumferential body 12 that injects the insulating resin 11 into the case 7 from the injection hole 10 provided in the sealing body 9 and blocks the insulating resin 11 that protrudes from the injection hole 10 to the outer surface. Provided. The protruding insulating resin 11 not only fills the injection hole 10 but also fills the gap between the external terminal 3 and the sealing body 9, so that the airtightness between the external terminal 3 and the sealing body 9 is improved. . In addition, the amount of the insulating resin 11 may be equal to or less than the height of the rotating body 12, and may have some variation.
The insulating resin 11 is an insulating filler for a capacitor, which can be generally used for filling a film capacitor, and is obtained by mixing a filler or the like with a resin such as an epoxy resin or a urethane resin. As the filler, hydroxides such as silicon, titanium, aluminum, calcium, zirconium, and magnesium, oxides, carbides, nitrides, and composites thereof can be used. If necessary, a flame retardant and an antioxidant may be added.

図3は、本発明に係る金属化フィルムコンデンサの別の外部端子と引き出し端子との接続部分を示している。図3では、はんだ付け等による接続の前の状態を示している。また、接続部分が見やすいように、通常の表示とは逆さまとなっている。
引き出し端子1には、その先端部から一体に延設された延設部2を設けていて、その延設部2は、外部端子3との接続部分の外周よりも内側に設けられていて、なおかつ、外部端子3と接続する引き出し端子1の接続部分には、切り欠き部13が設けられている。そして、外部端子3と引き出し端子1との接続は、延設部2と切り欠き部13の所を重点的にはんだ付け等により行う。
FIG. 3 shows a connection portion between another external terminal and a lead terminal of the metallized film capacitor according to the present invention. FIG. 3 shows a state before connection by soldering or the like. Moreover, it is upside down from a normal display so that a connection part can be seen easily.
The lead terminal 1 is provided with an extension portion 2 that is integrally extended from the tip portion thereof, and the extension portion 2 is provided on the inner side of the outer periphery of the connection portion with the external terminal 3. In addition, a cutout portion 13 is provided at a connection portion of the lead terminal 1 connected to the external terminal 3. Then, the connection between the external terminal 3 and the lead terminal 1 is performed by soldering or the like mainly on the extended portion 2 and the cutout portion 13.

図4は、本発明に係る金属化フィルムコンデンサの別の断面図を模式的に示している。
図2との違いは、封口体9の内表面と接する外部端子3の胴部に設けた鍔部14と、封口体9の外表面と接する側に留め具15とで、封口体9を挟む構造にした点で、留め具15を固定するための胴部には、溝部16を設ける。溝部16の溝穴方向は、留め具15の板面が封口体9の外表面と面接触することができるように、外部端子3の胴部の長さ方向に対して垂直方向に設ける。
また、貫通孔10よりケース7内部に絶縁樹脂11を注入し、留め具15を埋没させるまで設ける。
FIG. 4 schematically shows another cross-sectional view of the metallized film capacitor according to the present invention.
The difference from FIG. 2 is that the sealing body 9 is sandwiched between the flange 14 provided on the body portion of the external terminal 3 in contact with the inner surface of the sealing body 9 and the fastener 15 on the side in contact with the outer surface of the sealing body 9. In terms of the structure, a groove portion 16 is provided in a body portion for fixing the fastener 15. The slot direction of the groove portion 16 is provided in a direction perpendicular to the length direction of the body portion of the external terminal 3 so that the plate surface of the fastener 15 can come into surface contact with the outer surface of the sealing body 9.
Further, the insulating resin 11 is injected into the case 7 from the through hole 10 and provided until the fastener 15 is buried.

1…引き出し端子、2…延設部、3…外部端子、4…貫通穴部、5…突起、6…位置決め用穴、7…ケース、8…コンデンサ素子、9…封口体、10…メタリコン電極、11…絶縁樹脂、12…ダム形状の周回体、13…切り欠き部、14…鍔部、15…留め具、16…溝部   DESCRIPTION OF SYMBOLS 1 ... Lead terminal, 2 ... Extension part, 3 ... External terminal, 4 ... Through-hole part, 5 ... Projection, 6 ... Positioning hole, 7 ... Case, 8 ... Capacitor element, 9 ... Sealing body, 10 ... Metallicon electrode DESCRIPTION OF SYMBOLS 11 ... Insulating resin, 12 ... Dam-shaped surrounding body, 13 ... Notch part, 14 ... Gutter part, 15 ... Fastener, 16 ... Groove part

Claims (1)

金属化フィルムを使用し両端にメタリコン電極を設けた単数または複数のコンデンサ素子と、このコンデンサ素子を収容する、上端面に開口部のある有底筒状のケースと、このケースの開口部を封止する、外表面と内表面とを有する封口体と、この封口体の外表面から内表面間を貫通して設けた一対の外部端子と、この外部端子と前記メタリコン電極との間をそれぞれ接続した引き出し端子とを有する金属化フィルムコンデンサにあって、前記外部端子と接続する前記引き出し端子の接続部分には、その引き出し端子の先端部から一体に延設された延設部を設けていて、その延設部は、前記外部端子の接続端部の外周よりも内側に設けられていて、なおかつ、前記外部端子と接続する前記引き出し端子の接続部分には、切り欠き部または貫通穴部が設けられている金属化フィルムコンデンサ。   One or a plurality of capacitor elements using metallized film and provided with metallicon electrodes at both ends, a bottomed cylindrical case having an opening on the upper end surface that accommodates the capacitor element, and the opening of the case are sealed. A sealing body having an outer surface and an inner surface to be stopped, a pair of external terminals provided through the inner surface from the outer surface of the sealing body, and a connection between the external terminal and the metallicon electrode. In the metallized film capacitor having a lead terminal, the connecting portion of the lead terminal connected to the external terminal is provided with an extending portion that is integrally extended from the leading end portion of the lead terminal, The extending portion is provided on the inner side of the outer periphery of the connection end of the external terminal, and the connection portion of the lead terminal connected to the external terminal is notched or penetrated. Metallized film capacitor section is provided.
JP2012064729A 2012-03-22 2012-03-22 Metalization film capacitor Pending JP2013197431A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016192506A (en) * 2015-03-31 2016-11-10 日立エーアイシー株式会社 Film capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016192506A (en) * 2015-03-31 2016-11-10 日立エーアイシー株式会社 Film capacitor

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