JP2007201117A - Case-molded capacitor - Google Patents

Case-molded capacitor Download PDF

Info

Publication number
JP2007201117A
JP2007201117A JP2006017119A JP2006017119A JP2007201117A JP 2007201117 A JP2007201117 A JP 2007201117A JP 2006017119 A JP2006017119 A JP 2006017119A JP 2006017119 A JP2006017119 A JP 2006017119A JP 2007201117 A JP2007201117 A JP 2007201117A
Authority
JP
Japan
Prior art keywords
bus bar
connection terminal
external connection
capacitor
terminal portion
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.)
Granted
Application number
JP2006017119A
Other languages
Japanese (ja)
Other versions
JP4923589B2 (en
Inventor
Hiroki Takeoka
宏樹 竹岡
Hiroshi Fujii
浩 藤井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2006017119A priority Critical patent/JP4923589B2/en
Publication of JP2007201117A publication Critical patent/JP2007201117A/en
Application granted granted Critical
Publication of JP4923589B2 publication Critical patent/JP4923589B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/224—Housing; Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/228—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a case-molded capacitor with a low inductance, when two or more smoothing capacitors are contained in one capacitor unit. <P>SOLUTION: In the case that each number of elements connected to the bus bar of respective electrodes differs, an external connection terminal 6 of the bus bar of a side with a large number of connection elements has a larger area than that of an external connection terminal of the bus bar of a side with a small number of connection elements. Furthermore, since a part of external connection terminal of one bus bar is overlapped with an external connection terminal of the other bus bar, it is made possible to obtain a capacitor which has small inductance and small temperature rise in heat. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車載用、電気機器用、産業用、電力用等の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 for in-vehicle use, electrical equipment use, industrial use, electric power use and the like.

産業用途やハイブリッド自動車に代表される車両駆動用途などのパワーインバータシステムに用いられる平滑用コンデンサには、大容量で定格電圧が高く、耐電流の大きなコンデンサが要求される。この平滑用コンデンサに用いられるフィルムコンデンサは、定格電圧が高く、耐電流性能に優れるが、コンデンサ１素子の容量が小さいため、複数個のコンデンサ素子を並列に接続することによって、必要量の容量を得ている。   A smoothing capacitor used in a power inverter system such as an industrial application or a vehicle driving application represented by a hybrid vehicle is required to have a large capacity, a high rated voltage, and a large current resistance. The film capacitor used for the smoothing capacitor has a high rated voltage and excellent current resistance performance. However, since the capacity of one capacitor element is small, a necessary amount of capacity can be obtained by connecting a plurality of capacitor elements in parallel. It has gained.

元来、車両駆動用途などにおけるインバータの駆動周波数は、１０ｋＨｚ程度の高周波であるため、コンデンサの配線におけるインダクタンスが重要となる。これはインダクタンスが大きいとサージ電圧を上昇させ、インバータの故障の原因となるからである。   Originally, the drive frequency of an inverter in a vehicle drive application or the like is a high frequency of about 10 kHz, so that the inductance in the capacitor wiring is important. This is because if the inductance is large, the surge voltage is increased, causing a failure of the inverter.

このインバータにおいて平滑用コンデンサとして用いられる大容量フィルムコンデンサは、複数個のコンデンサ素子をバスバーなどにより電気的に接続しているため、インダクタンスが大きくなってしまう。   A large-capacity film capacitor used as a smoothing capacitor in this inverter has a large inductance because a plurality of capacitor elements are electrically connected by a bus bar or the like.

そこで低インダクタンスコンデンサを得るため、異極のバスバーを対向させ、相互インダクタンスを小さくする方法や、たとえば特許文献１に代表されるような発明が公開されている。
特開２００１−７６９６７号公報 Therefore, in order to obtain a low-inductance capacitor, a method for reducing the mutual inductance by causing opposite-polarity bus bars to face each other, and an invention represented by Patent Document 1, for example, have been disclosed.
JP 2001-76967 A

しかしこれらのコンデンサは、各電極のバスバーに接続されている素子数が等しいものであり、素子数が等しくない場合について、インダクタンスを小さくする有用な知見は得られていない。   However, these capacitors have the same number of elements connected to the bus bar of each electrode, and no useful knowledge has been obtained for reducing the inductance when the number of elements is not equal.

本発明は、各電極のバスバーに接続されている素子数が異なる場合に、特に複数個の平滑用コンデンサを１つのコンデンサユニットに収納する場合に、インダクタンスの低いコンデンサを提供することを目的とする。   An object of the present invention is to provide a capacitor having a low inductance when the number of elements connected to the bus bar of each electrode is different, particularly when a plurality of smoothing capacitors are accommodated in one capacitor unit. .

複数のコンデンサ素子を一端に外部接続端子部を設けたバスバーで接続したコンデンサにおいて、バスバーには接続された素子数の多いバスバーと、接続された素子数の少ないバスバーとがあり、前者のバスバーの外部接続端子部は後者のバスバーの外部接続端子部より面積が大きく、かつ、前者のバスバーの外部接続端子部の一部が後者のバスバーの外部接続端子部に重なっていることから、インダクタンスとリプル電流による発熱を小さくすることができる。   In a capacitor in which a plurality of capacitor elements are connected by a bus bar provided with an external connection terminal at one end, the bus bar has a bus bar having a large number of connected elements and a bus bar having a small number of connected elements. The external connection terminal part has a larger area than the external connection terminal part of the latter bus bar, and part of the external connection terminal part of the former bus bar overlaps the external connection terminal part of the latter bus bar. Heat generation due to current can be reduced.

本発明は、複数のコンデンサ素子を一端に外部接続端子部を設けたバスバーで接続したコンデンサにおいて、バスバーには接続された素子数の多いバスバーと、接続された素子数の少ないバスバーとがあり、前者のバスバーの外部接続端子部は後者のバスバーの外部接続端子部より面積が大きく、かつ、前者のバスバーの外部接続端子部の一部が後者のバスバーの外部接続端子部に重なっていることから、インダクタンスが小さく、温度上昇の小さいコンデンサを得ることができる。   The present invention is a capacitor in which a plurality of capacitor elements are connected by a bus bar provided with an external connection terminal at one end, and the bus bar includes a bus bar having a large number of connected elements and a bus bar having a small number of connected elements. The external connection terminal part of the former bus bar has a larger area than the external connection terminal part of the latter bus bar, and a part of the external connection terminal part of the former bus bar overlaps the external connection terminal part of the latter bus bar. Thus, a capacitor having a small inductance and a small temperature rise can be obtained.

コンデンサ素子は金属化フィルムを巻回したものであり、巻回軸を水平にし、巻回端面が同一平面になるように配列しているので、量産性の高いコンデンサを得ることができる。   The capacitor element is obtained by winding a metallized film, and the winding axis is horizontal and the winding end faces are arranged in the same plane, so that a capacitor with high mass productivity can be obtained.

以下に本発明を実施の形態にそって、詳細に説明する。   Hereinafter, the present invention will be described in detail according to embodiments.

図１（ａ）および（ｂ）は本発明におけるコンデンサユニットの斜視図であり、図１（ａ）は外部接続端子部側から見た斜視図、図１（ｂ）は外部接続端子部と反対側から見た斜視図である。   1A and 1B are perspective views of a capacitor unit according to the present invention, FIG. 1A is a perspective view seen from the external connection terminal side, and FIG. 1B is opposite to the external connection terminal part. It is the perspective view seen from the side.

図１（ａ）および（ｂ）において、１は銅製の正極バスバーであり、２は負極バスバーであり、後述するコンデンサ素子３の正極および負極に接続されている。   1A and 1B, 1 is a positive electrode bus bar made of copper, and 2 is a negative electrode bus bar, which are connected to a positive electrode and a negative electrode of a capacitor element 3 to be described later.

正極バスバー１および負極バスバー２は外部へ電気を引き出すための外部接続端子部６を有している。   The positive electrode bus bar 1 and the negative electrode bus bar 2 have external connection terminal portions 6 for drawing electricity to the outside.

３はコンデンサ素子であり、コンデンサ素子３はポリプロピレンフィルム（以下ＰＰフィルムと省略）などの誘電体フィルムに一端に非蒸着部分であるマージンを持つようにアルミニウムを真空蒸着により電極を形成した金属化フィルム２枚を、マージン位置が互いに逆になり、誘電体フィルムを介して電極が対向するように重ねて巻き取り、端面に亜鉛メタリコンにより外部電極（図示せず）を形成したものである。   Reference numeral 3 denotes a capacitor element. The capacitor element 3 is a metallized film in which an electrode is formed by vacuum deposition of aluminum so that a dielectric film such as a polypropylene film (hereinafter abbreviated as PP film) has a margin which is a non-deposition portion at one end. The two sheets are overlapped and wound so that the margin positions are opposite to each other and the electrodes are opposed to each other through a dielectric film, and external electrodes (not shown) are formed on the end surfaces by zinc metallicon.

コンデンサ素子３を複数個配列させ、負極バスバー２を共通にして、正極バスバー１を正極バスバー１ａ、正極バスバー１ｂなどと分割して電気を引き出してコンデンサユニットを構成する。このとき、接続されているコンデンサ素子３の数の多い負極バスバー２の外部接続端子部６は同じ位置から引き出される正極バスバー１ａの外部接続端子部６より面積が大きく、かつ負極バスバー２の外部接続端子部６の一部が正極バスバー１ａの外部接続端子部６に電気的絶縁を保ちつつ重なっている。   A plurality of capacitor elements 3 are arranged, the negative electrode bus bar 2 is shared, and the positive electrode bus bar 1 is divided into the positive electrode bus bar 1a, the positive electrode bus bar 1b, etc., and electricity is drawn out to constitute a capacitor unit. At this time, the external connection terminal portion 6 of the negative electrode bus bar 2 having a large number of connected capacitor elements 3 has a larger area than the external connection terminal portion 6 of the positive electrode bus bar 1a drawn from the same position, and is externally connected to the negative electrode bus bar 2. A part of the terminal portion 6 overlaps the external connection terminal portion 6 of the positive electrode bus bar 1a while maintaining electrical insulation.

本発明について、実施の形態を用いて説明する。   The present invention will be described using embodiments.

（実施の形態１）
ＰＰフィルムの厚さを４．０μｍとしたコンデンサ素子３を図２に示すとおり、素子幅１１を５０ｍｍ、素子厚さ１２を２５ｍｍ、素子長さ１３を８０ｍｍで作成した。 (Embodiment 1)
As shown in FIG. 2, the capacitor element 3 having a PP film thickness of 4.0 μm was prepared with an element width 11 of 50 mm, an element thickness 12 of 25 mm, and an element length 13 of 80 mm.

図１（ａ）および（ｂ）に示すとおり、このコンデンサ素子３を５個配列して１．２ｍｍ厚の銅製バスバーで接続し、コンデンサユニットを完成させた。構成は、負極バスバー２を共通にして、第１正極バスバー１ａに４個、第２正極バスバー１ｂに１個接続とした。コンデンサユニットの寸法は、図１（ａ）および（ｂ）に示すとおりであり、バスバー長さ４を２４０ｍｍ、バスバー幅５ａを２０ｍｍ、５ｂを４０ｍｍ、バスバーの外部接続端子部６高さを５５ｍｍ、バスバー間距離７を４０ｍｍとした。   As shown in FIGS. 1A and 1B, five capacitor elements 3 were arranged and connected by a copper bus bar having a thickness of 1.2 mm to complete a capacitor unit. The configuration is such that the negative electrode bus bar 2 is shared and four are connected to the first positive electrode bus bar 1a and one is connected to the second positive electrode bus bar 1b. The dimensions of the capacitor unit are as shown in FIGS. 1A and 1B. The bus bar length 4 is 240 mm, the bus bar width 5 a is 20 mm, 5 b is 40 mm, the external connection terminal portion 6 height of the bus bar is 55 mm, The distance 7 between bus bars was 40 mm.

なお、正極バスバー１ａの外部接続端子部６の面積より負極バスバー２の外部接続端子部６の面積の方が大きく、正極バスバー１ａの外部接続端子部６と負極バスバー２の外部接続端子部６の一部は絶縁を保ちつつ重なっている。   In addition, the area of the external connection terminal portion 6 of the negative electrode bus bar 2 is larger than the area of the external connection terminal portion 6 of the positive electrode bus bar 1a, and the external connection terminal portion 6 of the positive electrode bus bar 1a and the external connection terminal portion 6 of the negative electrode bus bar 2 are Some overlap while maintaining insulation.

（従来例１）
コンデンサユニットの寸法を図３に示すとおり、バスバー長さ４を２４０ｍｍ、バスバー幅５ｃを２０ｍｍ、バスバーの外部接続端子部６高さを５５ｍｍ、バスバー間距離７を４０ｍｍとした以外は、実施の形態１にそって、コンデンサユニットを作成した。 (Conventional example 1)
The dimensions of the capacitor unit are as shown in FIG. 3, except that the bus bar length 4 is 240 mm, the bus bar width 5 c is 20 mm, the external connection terminal 6 height of the bus bar is 55 mm, and the distance 7 between the bus bars is 40 mm. A capacitor unit was prepared according to 1.

なお、正極バスバー１ａおよび負極バスバー２それぞれの外部接続端子部６におけるバスバー幅５ｃは２０ｍｍで同じであり、重なっていないものとする。   It is assumed that the bus bar width 5c in the external connection terminal portion 6 of each of the positive electrode bus bar 1a and the negative electrode bus bar 2 is the same at 20 mm and does not overlap.

（従来例２）
コンデンサユニットの寸法を図４（ａ）および（ｂ）に示すとおり、バスバー長さ４を２４０ｍｍ、バスバー幅５ｄを４０ｍｍ、５ｅを２０ｍｍ、バスバーの外部接続端子部６高さを５５ｍｍ、バスバー間距離７を４０ｍｍとした以外は、実施の形態１にそって、コンデンサユニットを作成した。 (Conventional example 2)
As shown in FIGS. 4A and 4B, the dimensions of the capacitor unit are as follows: bus bar length 4 is 240 mm, bus bar width 5d is 40 mm, 5e is 20 mm, bus bar external connection terminal 6 height is 55 mm, distance between bus bars A capacitor unit was prepared according to the first embodiment except that 7 was set to 40 mm.

なお、正極バスバー１ａおよび負極バスバー２それぞれの外部接続端子部６におけるバスバー幅５ｄは４０ｍｍで同じであり、同じ面積のものが絶縁を保ちつつ重なっているものとする。   The bus bar width 5d in the external connection terminal portion 6 of each of the positive electrode bus bar 1a and the negative electrode bus bar 2 is the same at 40 mm, and the same area is overlapped while maintaining insulation.

（比較例１）
コンデンサユニットの寸法を図５（ａ）および（ｂ）に示すとおり、バスバー長さ４を２４０ｍｍ、バスバー幅５ｆを２０ｍｍ、５ｇを４０ｍｍ、バスバーの外部接続端子部６高さを５５ｍｍ、バスバー間距離７を４０ｍｍとした以外は、実施の形態１にそって、コンデンサユニットを作成した。 (Comparative Example 1)
As shown in FIGS. 5A and 5B, the capacitor unit dimensions are as follows: bus bar length 4 is 240 mm, bus bar width 5 f is 20 mm, 5 g is 40 mm, bus bar external connection terminal 6 height is 55 mm, distance between bus bars A capacitor unit was prepared according to the first embodiment except that 7 was set to 40 mm.

なお、正極バスバー１ａの外部接続端子部６の面積より負極バスバー２の外部接続端子部６の面積の方が小さく、正極バスバー１ａの外部接続端子部６の一部と負極バスバー２の外部接続端子部６は絶縁を保ちつつ重なっている。   In addition, the area of the external connection terminal portion 6 of the negative electrode bus bar 2 is smaller than the area of the external connection terminal portion 6 of the positive electrode bus bar 1a, and a part of the external connection terminal portion 6 of the positive electrode bus bar 1a and the external connection terminal of the negative electrode bus bar 2 The portion 6 overlaps while maintaining insulation.

実施の形態１と従来例１〜２、比較例１のコンデンサユニットについて、正極バスバー１ａ側のインダクタンスをアジレント・テクノロジー社製インピーダンスアナライザ ４２９４Ａで測定した。測定周波数は、１ＭＨｚとした。   For the capacitor units of Embodiment 1, Conventional Examples 1 and 2, and Comparative Example 1, the inductance on the positive electrode bus bar 1a side was measured with an impedance analyzer 4294A manufactured by Agilent Technologies. The measurement frequency was 1 MHz.

（表１）に実施の形態１と従来例１〜２のインダクタンスの値を示す。Ｎ数は各３、単位はｎＨである。   Table 1 shows inductance values of the first embodiment and the conventional examples 1 and 2. The N number is 3 and the unit is nH.

Figure 2007201117
Figure 2007201117

また、（表２）に実施の形態１と比較例１のコンデンサユニットに周波数１０ｋＨｚの電流を５０Ａｒｍｓ流したときの温度上昇値を示す。単位は、ｄｅｇ．である。   Further, (Table 2) shows a temperature rise value when a current of 10 kHz is passed through the capacitor units of the first embodiment and the comparative example 1 for 50 Arms. The unit is deg. It is.

Figure 2007201117
Figure 2007201117

（表１）から、正極バスバー１ａおよび負極バスバー２それぞれの外部接続端子部６を対向させることにより、インダクタンスを小さくできることがわかる。その中でもっともインダクタンスの小さな値を示したのは、従来例２である。しかし、従来例２は、ばらつきが大きく、量産性を考えると好ましくない。ばらつきの大きい要因として、正極バスバー１ａと負極バスバー２の重なり具合によっては、磁束が漏れて相互インダクタンスが大きくなるためと考えられる。   (Table 1) shows that the inductance can be reduced by making the external connection terminal portions 6 of the positive electrode bus bar 1a and the negative electrode bus bar 2 face each other. Among them, Conventional Example 2 shows the smallest value of inductance. However, Conventional Example 2 has a large variation and is not preferable in view of mass productivity. As a cause of large variation, it is considered that depending on the degree of overlap between the positive electrode bus bar 1a and the negative electrode bus bar 2, magnetic flux leaks and mutual inductance increases.

実施の形態１と比較例１では、インダクタンスの値もばらつきも小さく、量産性が高い。   In the first embodiment and the first comparative example, the inductance value and variation are small, and mass productivity is high.

（表２）から、実施の形態１の温度上昇は、比較例１に比較して小さいことがわかる。これは、素子数の多い負極バスバー２の方の外部接続端子部６を広幅にしていることにより、コンデンサ発熱がより効率的に拡散されるためと思われる。   From Table 2, it can be seen that the temperature rise in the first embodiment is smaller than that in Comparative Example 1. This is probably because the heat generation of the capacitor is more efficiently diffused by widening the external connection terminal portion 6 of the negative electrode bus bar 2 having a larger number of elements.

なお、実施の形態では、負極バスバー２を共通としたが、正極バスバー１ａおよび１ｂを共通としてもよい。   In the embodiment, the negative electrode bus bar 2 is common, but the positive electrode bus bars 1a and 1b may be common.

なお、実施の形態では、誘電体フィルムをＰＰフィルムとしたが、これに限られるものではなく、ポリエチレンテレフタレートやポリエチレンナフタレートやポリフェニルサルファイドなどの熱可塑性高分子フィルムであればよいことはいうまでもない。また、これらの高分子をメインとしたフィルムであってもよい。   In the embodiment, the dielectric film is a PP film. However, the present invention is not limited to this, and any thermoplastic polymer film such as polyethylene terephthalate, polyethylene naphthalate, or polyphenyl sulfide may be used. Nor. Further, a film mainly containing these polymers may be used.

本発明による金属化フィルムコンデンサは、各電極に接続される素子数が異なる場合にＥＳＬが小さく、また温度上昇の小さいコンデンサを得ることができるという効果を有し、特に、車載用のインバータ回路の平滑用、車両駆動用モータの駆動回路の平滑用等として有用である。   The metallized film capacitor according to the present invention has an effect that the ESL is small and the temperature rise is small when the number of elements connected to each electrode is different. It is useful for smoothing a driving circuit for a smoothing or vehicle driving motor.

本発明の実施の形態１における全体構成を示す図The figure which shows the whole structure in Embodiment 1 of this invention. 本発明の従来例１における全体構成を示す図The figure which shows the whole structure in the prior art example 1 of this invention 本発明の従来例２における全体構成を示す図The figure which shows the whole structure in the prior art example 2 of this invention 本発明の比較例１における全体構成を示す図The figure which shows the whole structure in the comparative example 1 of this invention. 本発明におけるコンデンサの寸法を示す図The figure which shows the dimension of the capacitor in this invention

符号の説明Explanation of symbols

１ 正極バスバー
２ 負極バスバー
３ コンデンサ素子
４ バスバー長さ
５ バスバー幅
６ バスバーの外部接続端子部
７ バスバー間距離
１１ 素子幅
１２ 素子厚さ
１３ 素子長さ DESCRIPTION OF SYMBOLS 1 Positive electrode bus bar 2 Negative electrode bus bar 3 Capacitor element 4 Bus bar length 5 Bus bar width 6 Bus bar external connection terminal part 7 Distance between bus bars 11 Element width 12 Element thickness 13 Element length

Claims (2)

複数のコンデンサ素子を一端に外部接続端子部を設けたバスバーで接続し、これをケース内に収容して少なくとも前記外部接続端子部を除いて樹脂を充填したケースモールド型コンデンサにおいて、前記バスバーには接続された素子数の多い方の第１のバスバーと、接続された素子数の少ない方の第２のバスバーとがあり、前記第１のバスバーの外部接続端子部は前記第２のバスバーの外部接続端子部より面積が大きく、かつ、前記第１のバスバーの外部接続端子部の一部が前記第２のバスバーの外部接続端子部に重なっていることを特徴とするケースモールド型コンデンサ。 In a case mold type capacitor in which a plurality of capacitor elements are connected by a bus bar provided with an external connection terminal portion at one end, accommodated in a case and filled with resin except at least the external connection terminal portion, There is a first bus bar having a larger number of connected elements and a second bus bar having a smaller number of connected elements, and an external connection terminal portion of the first bus bar is provided outside the second bus bar. A case mold type capacitor having a larger area than a connection terminal portion, and a part of the external connection terminal portion of the first bus bar overlapping the external connection terminal portion of the second bus bar. 前記コンデンサ素子は金属化フィルムを巻回したものであり、巻回軸を水平にし、巻回端面が同一平面になるように配列した請求項１に記載のケースモールド型コンデンサ。 The case mold type capacitor according to claim 1, wherein the capacitor element is formed by winding a metallized film, the winding axis is horizontal, and the winding end faces are arranged on the same plane.
JP2006017119A 2006-01-26 2006-01-26 Case mold type capacitor Expired - Fee Related JP4923589B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006017119A JP4923589B2 (en) 2006-01-26 2006-01-26 Case mold type capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006017119A JP4923589B2 (en) 2006-01-26 2006-01-26 Case mold type capacitor

Publications (2)

Publication Number Publication Date
JP2007201117A true JP2007201117A (en) 2007-08-09
JP4923589B2 JP4923589B2 (en) 2012-04-25

Family

ID=38455403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006017119A Expired - Fee Related JP4923589B2 (en) 2006-01-26 2006-01-26 Case mold type capacitor

Country Status (1)

Country Link
JP (1) JP4923589B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950891B1 (en) * 2008-03-13 2010-04-06 주식회사 뉴인텍 Bus-bar for jointing capacitor
JP2013115221A (en) * 2011-11-29 2013-06-10 Shin Kobe Electric Mach Co Ltd Capacitor module
JP2013211324A (en) * 2012-03-30 2013-10-10 Panasonic Corp Case molded capacitor
CN104465091A (en) * 2014-11-21 2015-03-25 安徽铜峰电子股份有限公司 Low inductance multi-core group power capacitor
CN109817455A (en) * 2017-11-22 2019-05-28 湖南中车时代电动汽车股份有限公司 A kind of Support Capacitor and the temperature-reduction protective for Support Capacitor
WO2024062830A1 (en) * 2022-09-21 2024-03-28 パナソニックＩｐマネジメント株式会社 Capacitor and power conversion device comprising same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014203893A (en) * 2013-04-02 2014-10-27 トヨタ自動車株式会社 Capacitor module

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6351428A (en) * 1986-08-20 1988-03-04 Teijin Ltd Production of polyester
JPH01265508A (en) * 1988-04-15 1989-10-23 Matsushita Electric Works Ltd Capacitor array
JPH05243086A (en) * 1992-02-27 1993-09-21 Murata Mfg Co Ltd Capacitor network
JPH10135075A (en) * 1996-09-03 1998-05-22 Shizuki Denki Seisakusho:Kk Capacitor and its external connecting terminal
JP2003047259A (en) * 2001-08-03 2003-02-14 Nissan Motor Co Ltd Power converter
JP2005050996A (en) * 2003-07-28 2005-02-24 Matsushita Electric Ind Co Ltd Metallized film capacitor, inverter circuit for on-vehicle driving using the same, and automobile the inverter circuit for on-vehicle driving mounted thereon
JP2005216631A (en) * 2004-01-28 2005-08-11 Nissan Motor Co Ltd Battery pack
JP2005317457A (en) * 2004-04-30 2005-11-10 Sanyo Electric Co Ltd Battery pack

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6351428A (en) * 1986-08-20 1988-03-04 Teijin Ltd Production of polyester
JPH01265508A (en) * 1988-04-15 1989-10-23 Matsushita Electric Works Ltd Capacitor array
JPH05243086A (en) * 1992-02-27 1993-09-21 Murata Mfg Co Ltd Capacitor network
JPH10135075A (en) * 1996-09-03 1998-05-22 Shizuki Denki Seisakusho:Kk Capacitor and its external connecting terminal
JP2003047259A (en) * 2001-08-03 2003-02-14 Nissan Motor Co Ltd Power converter
JP2005050996A (en) * 2003-07-28 2005-02-24 Matsushita Electric Ind Co Ltd Metallized film capacitor, inverter circuit for on-vehicle driving using the same, and automobile the inverter circuit for on-vehicle driving mounted thereon
JP2005216631A (en) * 2004-01-28 2005-08-11 Nissan Motor Co Ltd Battery pack
JP2005317457A (en) * 2004-04-30 2005-11-10 Sanyo Electric Co Ltd Battery pack

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950891B1 (en) * 2008-03-13 2010-04-06 주식회사 뉴인텍 Bus-bar for jointing capacitor
JP2013115221A (en) * 2011-11-29 2013-06-10 Shin Kobe Electric Mach Co Ltd Capacitor module
JP2013211324A (en) * 2012-03-30 2013-10-10 Panasonic Corp Case molded capacitor
CN104465091A (en) * 2014-11-21 2015-03-25 安徽铜峰电子股份有限公司 Low inductance multi-core group power capacitor
CN109817455A (en) * 2017-11-22 2019-05-28 湖南中车时代电动汽车股份有限公司 A kind of Support Capacitor and the temperature-reduction protective for Support Capacitor
WO2024062830A1 (en) * 2022-09-21 2024-03-28 パナソニックＩｐマネジメント株式会社 Capacitor and power conversion device comprising same

Also Published As

Publication number Publication date
JP4923589B2 (en) 2012-04-25

Similar Documents

Publication Publication Date Title
US7911765B2 (en) Metalized film capacitor, case mold type capacitor using the same, inverter circuit, and vehicle drive motor drive circuit
JP4923589B2 (en) Case mold type capacitor
JP5131193B2 (en) Metallized film capacitors
JP5391797B2 (en) Case mold type capacitor
JP4946618B2 (en) Case mold type capacitor
US9558893B2 (en) Power storage device
EP3358586B1 (en) Film capacitor, coupled-type capacitor, inverter, and electric vehicle
JP2004186640A (en) Metallized film capacitor
JP2009099884A (en) Capacitor
JP4992767B2 (en) Capacitor device.
JP2010225970A (en) Case mold type capacitor
JP5012140B2 (en) Case mold type capacitor and inspection method thereof
JP6305731B2 (en) Case mold type capacitor and manufacturing method thereof
JP2013251351A (en) Capacitor
JP2009200378A (en) Composite metallized-film capacitor
JP2007081007A (en) Metallized film capacitor
JP2008258405A (en) Case molded capacitor
JP4803749B2 (en) Metallized film capacitors
JP2016100578A (en) Capacitor and manufacturing method for the same
JP2015159226A (en) Lamination type film capacitor, capacitor module, and power conversion system
WO2017150151A1 (en) Film capacitor
JP6649096B2 (en) Film capacitors, connected capacitors, inverters and electric vehicles
JP2017069326A (en) Capacitor module
JP2007250923A (en) Metallized film capacitor and its manufacturing method
US9666365B2 (en) Laminated film capacitor, film capacitor module, and power conversion system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090105

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101202

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101214

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110426

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110617

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110830

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111031

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120110

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120123

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150217

Year of fee payment: 3

R151 Written notification of patent or utility model registration

Ref document number: 4923589

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150217

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees