JP2005130542A - Inverter - Google Patents

Inverter Download PDF

Info

Publication number
JP2005130542A
JP2005130542A JP2003360280A JP2003360280A JP2005130542A JP 2005130542 A JP2005130542 A JP 2005130542A JP 2003360280 A JP2003360280 A JP 2003360280A JP 2003360280 A JP2003360280 A JP 2003360280A JP 2005130542 A JP2005130542 A JP 2005130542A
Authority
JP
Japan
Prior art keywords
conductor
conductor plates
mica
inverter
plates
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
JP2003360280A
Other languages
Japanese (ja)
Other versions
JP4343649B2 (en
Inventor
Yasuyuki Okumura
保之 奥村
Kohachi Toi
紘八 戸井
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2003360280A priority Critical patent/JP4343649B2/en
Publication of JP2005130542A publication Critical patent/JP2005130542A/en
Application granted granted Critical
Publication of JP4343649B2 publication Critical patent/JP4343649B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminate conductor board of a simple high-voltage inverter which is low cost and hard to be insulation-broken. <P>SOLUTION: An insulating sheet 8 of mica is sandwiched between conductor boards 6, 7, 14 of different polarities of an inverter. The ends of the conductor boards 6, 7, 14 are wrapped with insulating members 17, 18 of mica (1). Resin insulators 25, 26 are packed between hole insulating members 21, 22 of mica and connecting through holes 19, 20 (2). Mica sheets 15, 16 are pasted on both front and rear sides of the laminate conductor board 4 (3). An insulating projection 27 for assuring a creeping distance is provided between cylindrical connection members 512, 514 (4). The laminate conductor board copes with high voltages 1-3 KV and long life (about 30 years), for snubber-less, smaller size, less number of components, and less variation in inductance. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明はインバータ装置に係り、特に、高電圧で配線インダクタンスを減少させるのに適した積層導電板を備えたインバータ装置に関する。   The present invention relates to an inverter device, and more particularly to an inverter device provided with a laminated conductive plate suitable for reducing wiring inductance at a high voltage.

従来、高圧のインバータ装置では、例えば特許文献1に開示されているように、直流正負極導体板を絶縁シートを挟んで積層導体とすることが多い。この絶縁シートの材料としては、ポリエステルなどの樹脂を使用することが多い。また、絶縁体として、マイカを用いることは、例えば特許文献2等に開示されている。さらに、絶縁材料マイカが、コロナ放電に強いことは、非特許文献1に開示されているように、古くから知られている。   Conventionally, in a high-voltage inverter device, for example, as disclosed in Patent Document 1, a DC positive and negative electrode conductor plate is often a laminated conductor with an insulating sheet interposed therebetween. As a material for the insulating sheet, a resin such as polyester is often used. The use of mica as an insulator is disclosed in, for example, Patent Document 2. Furthermore, as disclosed in Non-Patent Document 1, it has been known for a long time that the insulating material mica is resistant to corona discharge.

特開平11−89247号公報(要約ほか)JP 11-89247 A (summary etc.)

特開2002−112530号公報(段落0035ほか)JP 2002-112530 A (paragraph 0035 and others) 新版電気工学ハンドブック(電気学会)(第501頁左下欄)New edition of Electrical Engineering Handbook (The Institute of Electrical Engineers of Japan) (Page 501 lower left column)

積層導体板の絶縁にポリエステルなどを用い、高電圧(1〜3kV)で使用すると、部分放電での絶縁損傷による寿命低下が著しいことが判った。空気を使用すると、絶縁距離を確保するため、導体間に放電しないための距離が必要となり、インダクタンスの増加とともに、積層導体板が大型化し、インバータ装置が大型化してしまう。   It has been found that when polyester or the like is used for insulation of the laminated conductor plate and used at a high voltage (1 to 3 kV), the service life is significantly reduced due to insulation damage in partial discharge. When air is used, a distance for preventing discharge between conductors is required to secure an insulation distance. As the inductance increases, the laminated conductor plate becomes larger and the inverter device becomes larger.

また、積層導体板の絶縁にマイカを使用することも考えられるが、導体板の端部での絶縁の問題や、マイカシートの剥離による絶縁損傷が発生し、絶縁寿命が低下する問題があった。   In addition, it is conceivable to use mica for insulation of the laminated conductor plate, but there are problems of insulation at the end of the conductor plate and insulation damage due to peeling of the mica sheet, resulting in a decrease in insulation life. .

本発明の目的は、小型で絶縁寿命の長い積層導体板を備えたインバータ装置を提供することである。   An object of the present invention is to provide an inverter device including a small-sized laminated conductor plate having a long insulation life.

本発明はその一面において、絶縁シートをインバータの異極性の導体板で挟んだ積層導体板を備えたインバータ装置において、前記絶縁シートを、これら導体板よりも広く、これら導体板の端部からはみ出すマイカ製の絶縁シートとしたことを特徴とする。   In one aspect of the present invention, in an inverter device including a laminated conductor plate in which an insulating sheet is sandwiched between conductor plates having different polarities of the inverter, the insulating sheet is wider than these conductor plates and protrudes from the end portions of these conductor plates. It is a mica-made insulating sheet.

本発明は他の一面において、両導体板に挟まれた第1の上記マイカ製の絶縁シートに加え、両導体板の各外表面を覆う第2及び第3のマイカ製の絶縁シートと、これらの各マイカ製の絶縁シートの端部間を繋ぎ両導体板の各端部を覆うマイカ製の絶縁部材を備えたことを特徴とする。   In another aspect of the present invention, in addition to the first mica insulating sheet sandwiched between both conductor plates, the second and third mica insulating sheets covering the outer surfaces of both conductor plates, and these It is characterized by comprising an insulating member made of mica that connects between the ends of the insulating sheets made of mica and covers the ends of both conductor plates.

さらに、本発明は他の一面において、積層導体板に設けた貫通孔内でそれぞれ導体板の一方に接触し、一端がインバータ回路部品に電気的に接続された接続部材と、この接続部材が接触しない導体板の他方と接続部材との間にマイカ製の臨孔絶縁部材を配置し、さらに、この貫通孔の隙間に樹脂製絶縁物を充填したことを特徴とする。   Further, according to another aspect of the present invention, a connection member that contacts one of the conductor plates and has one end electrically connected to the inverter circuit component in the through hole provided in the laminated conductor plate, and the connection member contacts A mica-made insulating insulating member made of mica is disposed between the other conductor plate and the connecting member, and a resin insulating material is filled in the gap between the through holes.

本発明のその他の目的と特徴は、以下に述べる実施形態の説明で明らかにする。   Other objects and features of the present invention will become apparent from the following description of embodiments.

本発明によれば、マイカを使用し、特に導体端部間の絶縁を強化することにより、高耐圧化と長寿命化を図った積層導体板を実現し、インダクタンスを低減し、小型化したインバータ装置を提供できる。   According to the present invention, a mica is used, and in particular, the insulation between conductor end portions is reinforced, thereby realizing a laminated conductor plate with a high breakdown voltage and a long life, reducing inductance, and reducing the size of the inverter. Equipment can be provided.

望ましい一実施形態によれば、1〜3kVの高電圧に耐え、約30年に亘る長寿命を誇る積層導体板を実現でき、スナバレス化等の部品点数の削減を図ったインバータ装置を提供することができる。   According to a preferred embodiment, an inverter device that can withstand a high voltage of 1 to 3 kV, can realize a laminated conductor plate that has a long life span of about 30 years, and reduces the number of components such as snubberless is provided. Can do.

次に、本発明によるインバータ装置の実施例について図面を参照して説明する。   Next, an embodiment of an inverter device according to the present invention will be described with reference to the drawings.

図1は、本発明の一実施例によるインバータ装置の主回路半導体スタック1相分の要部斜視図である。分り易くするため、本発明と直接関係のない部分は省略している。図において、インバータ主回路を構成するIGBT等の半導体スイッチング素子11,12が、放熱フィン2に取り付けられ、フィルタコンデンサ3とともに、接続部材例えばねじ51,52群により積層導体板4内の導体板に接続される。この積層導体板4は、インバータの直流端子を構成する正極導体板6と負極導体板7とにより、マイカ絶縁板8をサンドイッチ状に挟んで接着し、一体化したものである。正極導体板6は外部接続端子9(P)に繋がり、負極導体板7は外部接続端子10(N)に繋がり、さらに交流導体板(後述)は外部接続端子13(AC)に繋がっている。   FIG. 1 is a perspective view of an essential part of one phase of a main circuit semiconductor stack of an inverter device according to an embodiment of the present invention. For ease of understanding, portions not directly related to the present invention are omitted. In the figure, semiconductor switching elements 11 and 12 such as IGBTs constituting the inverter main circuit are attached to the heat radiating fins 2, and together with the filter capacitors 3, connection members such as screws 51 and 52 are attached to the conductor plates in the laminated conductor plate 4. Connected. The laminated conductor plate 4 is formed by sandwiching and bonding a mica insulating plate 8 in a sandwich shape between a positive electrode conductor plate 6 and a negative electrode conductor plate 7 constituting a DC terminal of an inverter. The positive electrode conductor plate 6 is connected to the external connection terminal 9 (P), the negative electrode conductor plate 7 is connected to the external connection terminal 10 (N), and the AC conductor plate (described later) is connected to the external connection terminal 13 (AC).

図2は、図1に示す本発明の一実施例によるインバータ装置の1相分の主回路図である。図示するように、この例では、スイッチング素子11と12は、それぞれ3個のIGBTの並列体で構成されている。これらの素子は、それぞれの直流導体板6(P),7(N)に対し、接続ねじ51群によりP1〜P3点及びN1〜N3点で接続されている。同様に、これらIGBTの直列接続点は全て交流導体板(後述、AC)に接続されている。また、フィルタコンデンサ3は、この例では2個の並列体からなり、同様に、P1,P2及びN1,N2点で、直流導体板6(P),7(N)に、接続ねじ52群により接続されている。   FIG. 2 is a main circuit diagram for one phase of the inverter device according to the embodiment of the present invention shown in FIG. As shown in the figure, in this example, the switching elements 11 and 12 are each composed of a parallel body of three IGBTs. These elements are connected to the respective DC conductor plates 6 (P) and 7 (N) at points P1 to P3 and N1 to N3 by connecting screw 51 group. Similarly, all the series connection points of these IGBTs are connected to an AC conductor plate (described later, AC). In addition, the filter capacitor 3 is composed of two parallel bodies in this example. Similarly, at the points P1, P2 and N1, N2, the DC conductor plates 6 (P) and 7 (N) are connected to the DC screw plates 6 by a group of connection screws 52. It is connected.

図3は、図1に示す本発明の一実施例によるインバータ装置の1相分の主回路接続関係を側面から見たイメージ図である。直流負極導体板7と同一平面上で、凡そ半分近い面積に、交流導体板14を配置している。したがって、スイッチング素子11と12は、正極導体板6と交流導体板14との間、及び交流導体板14と負極導体板7との間に図示するように接続することができる。   FIG. 3 is a side view of the main circuit connection relationship for one phase of the inverter device according to the embodiment of the present invention shown in FIG. On the same plane as the DC negative electrode conductor plate 7, the AC conductor plate 14 is arranged in an area nearly half the area. Therefore, the switching elements 11 and 12 can be connected as illustrated between the positive electrode conductor plate 6 and the AC conductor plate 14 and between the AC conductor plate 14 and the negative electrode conductor plate 7.

図4は、図1に示す本発明の一実施例をA−A線で断面した積層導体板4の詳細構造図である。この図においても、本発明と直接関係のない部分は省略している。図において、積層導体板4は、厚さ0.34mmのマイカシートを7枚重ねた2.38mmのマイカ絶縁シート8を、正極導体板6と交流導体板14とで挟んでいる。この図は、図1や図4の左方部分であるため、直流負極導体板7は見えない。見えない右方では、マイカシート8は、正負極導体板6,7に挟まれ、これら両導体板を絶縁する。このマイカシート8は、正極導体板6よりも広く、積層導体板4の端部において、各導体板の端部よりも外側にはみ出ている。一実施例では、はみ出し幅は15mmである。   FIG. 4 is a detailed structural view of the laminated conductor plate 4 taken along the line AA of the embodiment of the present invention shown in FIG. Also in this figure, portions not directly related to the present invention are omitted. In the figure, the laminated conductor plate 4 has a positive electrode conductor plate 6 and an AC conductor plate 14 sandwiching a 2.38 mm mica insulating sheet 8 in which seven mica sheets having a thickness of 0.34 mm are stacked. Since this figure is the left part of FIG. 1 and FIG. 4, the DC negative electrode conductor plate 7 is not visible. On the right side that cannot be seen, the mica sheet 8 is sandwiched between the positive and negative electrode conductor plates 6 and 7 to insulate these two conductor plates. The mica sheet 8 is wider than the positive conductor plate 6 and protrudes outside the end portions of the conductor plates at the end portions of the laminated conductor plate 4. In one embodiment, the overhang width is 15 mm.

この実施例の積層導体板4は、その上下の表裏面にも、第2、第3のマイカ製の絶縁シート15,16を貼り付ける。これらのシートも中央の第1のマイカシート8と同じ広さを持ち、同じはみ出し幅を持つ。積層導体板4の端部においては、次の絶縁強化策を施している。すなわち、第1〜第3のマイカシート8,15及び16の端部間開口部を塞ぎ、正極導体板6、交流導体板14及び図示しない負極導体板7の端部を包み込むように、マイカ製の絶縁部材(端部被覆部)17,18を挟み込み、接着している。これによって、積層導体板4の端部での各導体板の端部間の絶縁を強化できる。   The laminated conductor plate 4 of this embodiment also has second and third mica insulating sheets 15 and 16 attached to the upper and lower front and back surfaces thereof. These sheets also have the same width as the first first mica sheet 8 and the same protruding width. At the end of the laminated conductor plate 4, the following insulation reinforcement measures are taken. That is, the first to third mica sheets 8, 15, and 16 are made of mica so as to close the openings between the end portions and enclose the end portions of the positive electrode conductor plate 6, the AC conductor plate 14, and the negative electrode conductor plate 7 (not shown). Insulating members (end portion covering portions) 17 and 18 are sandwiched and bonded. Thereby, the insulation between the edge parts of each conductor board in the edge part of the laminated conductor board 4 can be strengthened.

積層導体板4内の各導体板とインバータ回路部品との接続のために、積層導体板4の必要個所に貫通孔19,20が開けられている。スイッチング素子11のコレクタすなわちインバータの直流正極P3点は、接続ねじ51群の1つ511と円筒状の接続部材512により、積層導体板4内の正極導体板6に接続されている。一方、スイッチング素子11のエミッタすなわちインバータの交流端子(AC)は、接続ねじ51群内の他の1つ513と円筒状の接続部材514により、積層導体板4内の交流導体板14に接続されている。   In order to connect each conductor plate in the laminated conductor plate 4 and the inverter circuit component, through holes 19 and 20 are formed at necessary portions of the laminated conductor plate 4. The collector of the switching element 11, that is, the DC positive electrode P 3 point of the inverter, is connected to the positive conductor plate 6 in the laminated conductor plate 4 by one of the connecting screws 51 group 511 and the cylindrical connecting member 512. On the other hand, the emitter of the switching element 11, that is, the AC terminal (AC) of the inverter is connected to the AC conductor plate 14 in the multilayer conductor plate 4 by the other one 513 in the connection screw 51 group and the cylindrical connection member 514. ing.

この実施例の積層導体板4は、前記した端部絶縁強化策のほか、接続用の貫通孔19,20にも、次の絶縁強化策を備えている。すなわち、正負極導体板6,7や交流導体板14が貫通孔19,20に臨む導体板の端部と貫通孔19,20の間にマイカ製の臨孔絶縁部材21,22を装填している。また、貫通孔19,20内において、これら臨孔絶縁部材21,22と、円筒状の接続部材512や接続ねじ513との隙間に、シリコーン樹脂等の絶縁材25,26を充填している。これによって、貫通孔19,20を利用した接続部における異種導体板間の絶縁も強化できる。   The laminated conductor plate 4 of this embodiment is provided with the following insulation reinforcement measures in the connection through holes 19 and 20 in addition to the above-described end insulation reinforcement measures. That is, mica-made insulating insulating members 21 and 22 made of mica are loaded between the end portions of the conductor plates where the positive and negative electrode conductor plates 6 and 7 and the AC conductor plate 14 face the through holes 19 and 20 and the through holes 19 and 20. Yes. In addition, in the through holes 19 and 20, insulating materials 25 and 26 such as silicone resin are filled in gaps between the near-hole insulating members 21 and 22 and the cylindrical connection members 512 and connection screws 513. Thereby, the insulation between the dissimilar conductor plates in the connection part using the through holes 19 and 20 can be strengthened.

さらに、正極導体板6と交流導体板14の接続導体である円筒状の接続部材512と514間の沿面距離を確保するために、積層導体板4の裏面から絶縁突起部27を突出させている。   Further, in order to secure a creeping distance between the cylindrical connection members 512 and 514 that are connection conductors of the positive electrode conductor plate 6 and the AC conductor plate 14, the insulating protrusion 27 is protruded from the back surface of the laminated conductor plate 4. .

このように構成することにより、直流正負導体板6,7及び交流導体板14を含む積層導体板4内の、異種導体板間の絶縁を強化でき、高圧化に耐え、かつ、長寿命のインバータ装置を実現することができる。   With this configuration, the insulation between different conductor plates in the laminated conductor plate 4 including the DC positive and negative conductor plates 6 and 7 and the AC conductor plate 14 can be strengthened, can withstand high pressure, and has a long life. An apparatus can be realized.

図5は、図1に示す本発明の一実施例をB−B線で断面した積層導体板4の詳細構造図である。この図においても、本発明と直接関係のない部分は省略し、図4等と同一構成要素には同一符号を付けて重複説明は避ける。図4と異なる点は、図3のほぼ中央部を断面したものであるため、積層導体板4内の下部の同一平面内において、左方に交流導体板14が位置し、右方には負極導体板7が存在することである。このため、積層導体板4の下面に貼り付けたマイカシート16と、積層導体板4の裏面から突出した絶縁突起部27は特に有効である。また、これら交流導体板14の右端と、負極導体板7の左端とが対向した部分にはマイカ製の絶縁体28を埋め込んで絶縁しているが、マイカの剥離の懸念がある。このため、異種導体板7と14の対峙する端部間をマイカのシート面で絶縁隔離する手法を採っている。すなわち、負極導体板7の左端と交流導体板14の右端とをそれぞれマイカシート29と30で包み込み、剥離だけでは絶縁破壊が生じないように工夫している。   FIG. 5 is a detailed structural view of the laminated conductor plate 4 taken along the line BB of the embodiment of the present invention shown in FIG. Also in this figure, parts not directly related to the present invention are omitted, and the same components as those in FIG. 4 differs from FIG. 4 in that it is a cross-section of the substantially central portion of FIG. 3, and in the same plane at the bottom of the laminated conductor plate 4, the AC conductor plate 14 is located on the left side and the negative electrode on the right side. That is, the conductor plate 7 exists. For this reason, the mica sheet 16 affixed to the lower surface of the multilayer conductor plate 4 and the insulating protrusion 27 protruding from the back surface of the multilayer conductor plate 4 are particularly effective. In addition, a mica insulator 28 is embedded in the portion where the right end of the AC conductor plate 14 and the left end of the negative electrode plate 7 face each other, but there is a concern that mica may be peeled off. For this reason, the method of insulating and isolating between the opposing ends of the different conductor plates 7 and 14 with the mica sheet surface is adopted. That is, the left end of the negative electrode conductor plate 7 and the right end of the AC conductor plate 14 are wrapped with mica sheets 29 and 30, respectively, so that dielectric breakdown does not occur only by peeling.

この構造により、同一平面内を分け合うように異種導体板を配置した積層導体板において、それらの対峙する端部間の絶縁を強化でき、高圧に絶え、長寿命のインバータ装置を実現できる。   With this structure, in a laminated conductor plate in which dissimilar conductor plates are arranged so as to divide in the same plane, the insulation between the opposing ends can be strengthened, and the inverter device can be realized at a high voltage without a long life.

以上の実施例を要約すると次の通りである。まず、半導体スイッチング素子11,12により直流と交流との間に電力変換を行い、直流正極導体板6と、直流負極導体板7と、これら直流正負極導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置を対象としている。ここで、前記絶縁シートをマイカ製とし、第1のマイカ製の絶縁シート8としている。次に、この絶縁シート8を挟む導体板の1つを形成するために、直流正負極導体板の一方7及びこれと同一平面内を分け合うように交流導体板の1つ14を配置している。そして、これら同一平面内を分け合う2つの導体板7と14の対峙する各端部間にはマイカ製の絶縁体28を配置するとともに、各端部間をシート面で隔離するマイカシート29,30又は31を設けている。また、積層導体板の上下両面には、第2及び第3のマイカ製の絶縁シート15,16を貼り付けている。積層導体板4の端部では、各導体板の端部を包み込むように、第1〜第3のマイカ製の絶縁シートの端部間を塞ぐマイカ製の絶縁部材17,18を備えている。また、積層導体板4に設けた貫通孔19,20内でそれぞれ導体板の1つに接触し、一端がインバータ回路部品に電気的に接続された接続部材511,512、513,514を設けている。そして、貫通孔のうち、接続部材が接触しない導体板と接続部材との間の隙間に樹脂製絶縁材25,26を充填している。最後に、接続部材511,512と、513,514間で、この積層導体板4からインバータ回路部品側に突出する絶縁突起部27を備えている。   The above embodiment is summarized as follows. First, the semiconductor switching elements 11 and 12 perform power conversion between direct current and alternating current, and include a direct current positive electrode conductor plate 6, a direct current negative electrode conductor plate 7, and a laminate including an insulating sheet sandwiched between the direct current positive and negative electrode conductor plates. It is intended for an inverter device provided with a conductor plate. Here, the insulating sheet is made of mica, and the first insulating sheet 8 made of mica is used. Next, in order to form one of the conductor plates sandwiching the insulating sheet 8, one of the DC positive and negative electrode conductor plates 7 and one of the AC conductor plates 14 are arranged so as to share the same plane. . Mica sheets 29 and 30 are disposed between the opposing ends of the two conductor plates 7 and 14 that divide the same plane, and mica sheets 29 and 30 that separate the ends by sheet surfaces. Or 31 is provided. Further, second and third insulating sheets 15 and 16 made of mica are attached to the upper and lower surfaces of the laminated conductor plate. At the end of the laminated conductor plate 4, there are provided mica insulating members 17 and 18 for closing between the ends of the first to third mica insulating sheets so as to wrap the ends of the respective conductor plates. In addition, connecting members 511, 512, 513, and 514, which are in contact with one of the conductor plates in the through holes 19 and 20 provided in the laminated conductor plate 4 and one end of which is electrically connected to the inverter circuit component, are provided. Yes. And the resin insulation materials 25 and 26 are filled into the clearance gap between the conductor plate and connection member which a connection member does not contact among through-holes. Finally, between the connecting members 511, 512 and 513, 514, an insulating protrusion 27 protruding from the laminated conductor plate 4 toward the inverter circuit component side is provided.

この構成により、インバータの異極性導体板間を全てマイカで絶縁し、剥離による放電の惧れをなくし、小型で絶縁寿命の長い積層導体板4を備えたインバータ装置を提供することができる。   With this configuration, it is possible to provide an inverter device provided with the laminated conductor plate 4 that is small and has a long insulation life, in which the different polarity conductor plates of the inverter are all insulated with mica to eliminate the possibility of discharge due to peeling.

図6は、本発明の他の一実施例を、図5に対応して示す断面図である。図5と同一構成要素には同一符号を付けて重複説明は避ける。図5と異なる点は、異種導体板7と14の対峙する端部間を1枚のマイカシート31で絶縁隔離したことである。   FIG. 6 is a cross-sectional view corresponding to FIG. 5 showing another embodiment of the present invention. The same components as those in FIG. The difference from FIG. 5 is that a single mica sheet 31 insulates and separates the opposite ends of the different conductor plates 7 and 14 from each other.

この構成によれば、比較的簡易に、図5と同様の効果を発揮できる。   According to this configuration, the same effects as in FIG. 5 can be exhibited relatively easily.

なお、図5及び図6には、図4の充填絶縁材25,26の図示を省略したが、必要に応じて、同様に充填することができる。   In FIGS. 5 and 6, the filling insulating materials 25 and 26 of FIG. 4 are not shown, but can be filled similarly if necessary.

以上の実施例では、インバータの導体板として、いずれもフラット形状の導体板を用いたが、曲げた形状であっても同様の効果を奏することができる。   In the above embodiments, a flat conductor plate is used as the conductor plate of the inverter, but the same effect can be obtained even when the conductor plate is bent.

本発明の一実施例によるインバータ装置の主回路半導体スタック1相分の要部斜視図。The principal part perspective view for the main circuit semiconductor stack of the inverter apparatus by one Example of this invention for one phase. 図1に示す本発明の一実施例によるインバータ装置の1相分の主回路図。The main circuit diagram for 1 phase of the inverter apparatus by one Example of this invention shown in FIG. 図1に示す本発明の一実施例によるインバータ装置の1相分の主回路接続関係を側面から見たイメージ図。The image figure which looked at the main circuit connection relation for 1 phase of the inverter apparatus by one Example of this invention shown in FIG. 1 from the side surface. 図1に示す本発明の一実施例のA−A断面図。FIG. 2 is a cross-sectional view of the embodiment of the present invention shown in FIG. 図1に示す本発明の一実施例のB−B断面図。BB sectional drawing of one Example of this invention shown in FIG. 図5に対応して示す本発明の他の一実施例断面図。FIG. 6 is a cross-sectional view of another embodiment of the present invention shown corresponding to FIG. 5.

符号の説明Explanation of symbols

11,12…半導体スイッチング素子(IGBT)、2…放熱フィン、3…フィルタコンデンサ、4…積層導体板、51,52…接続部材(ねじ)群、511,513,515,517…接続ねじ、512,514,516…円筒状の接続部材、6…直流正極導体板、7…直流負極導体板、8…(第1の)マイカ製の絶縁シート、9,10,13…外部接続端子、14…交流導体板、15,16…表裏(第2,第3)のマイカ製の絶縁シート、17,18…端部の絶縁部材、19,20…接続用の貫通孔、21,22…マイカ製の臨孔絶縁部材、25,26…シリコーン樹脂等の絶縁材、27…絶縁突起部、28…マイカ製の絶縁体、29〜31…マイカシート。   DESCRIPTION OF SYMBOLS 11, 12 ... Semiconductor switching element (IGBT), 2 ... Radiation fin, 3 ... Filter capacitor, 4 ... Laminated conductor board, 51, 52 ... Connection member (screw) group, 511, 513, 515, 517 ... Connection screw, 512 , 514, 516 ... cylindrical connecting member, 6 ... DC positive electrode conductor plate, 7 ... DC negative electrode conductor plate, 8 ... (first) mica insulating sheet, 9, 10, 13 ... external connection terminals, 14 ... AC conductor plate, 15, 16 ... front and back (second and third) mica insulating sheets, 17, 18 ... end insulating members, 19, 20 ... through holes for connection, 21, 22 ... made by mica Perforated insulating member, 25, 26 ... insulating material such as silicone resin, 27 ... insulating projection, 28 ... insulator made of mica, 29-31 ... mica sheet.

Claims (10)

半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、前記インバータの直流正負極導体板及び交流導体板のうち少なくとも2つの異極性導体板に挟まれ、これら導体板よりも広く、これら導体板の端部からはみ出すマイカ製の絶縁シートを備えたことを特徴とするインバータ装置。   In an inverter device including a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of an inverter, wherein power is converted between direct current and alternating current by a semiconductor switching element. An inverter device comprising an insulating sheet made of mica sandwiched between at least two different polarity conductor plates among a plate and an AC conductor plate, wider than these conductor plates and protruding from the end portions of these conductor plates. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、前記インバータの直流正負極導体板及び交流導体板のうち少なくとも2つの異極性導体板に挟まれ、これら導体板よりも広く、これら導体板の端部からはみ出す第1のマイカ製の絶縁シートと、これら導体板の各外表面を覆う第2及び第3のマイカ製の絶縁シートと、これら各マイカ製の絶縁シートの端部間を繋ぎ前記導体板の端部を覆うマイカ製の絶縁部材を備えたことを特徴とするインバータ装置。   In an inverter device including a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of an inverter, wherein power is converted between direct current and alternating current by a semiconductor switching element. A first mica insulating sheet sandwiched between at least two different polarity conductor plates of the plate and the AC conductor plate, wider than these conductor plates and protruding from the end portions of these conductor plates, and respective outer surfaces of these conductor plates An inverter comprising: a second and a third mica insulating sheet covering each of the first and second mica insulating sheets; and a mica insulating member that connects the end portions of each of the mica insulating sheets and covers the end portion of the conductor plate. apparatus. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、前記インバータの直流正負極導体板及び交流導体板のうち少なくとも2つの異極性導体板に挟まれ、これら導体板よりも広く、これら導体板の端部からはみ出す第1のマイカ製の絶縁シートと、前記積層導体板に設けた貫通孔と、これら貫通孔内でそれぞれ前記導体板の1つに接触し、一端がインバータ回路部品に電気的に接続された接続部材と、前記接続部材が接触しない前記導体板の他の1つが前記貫通孔に臨む導体板端部と前記貫通孔の間に装填したマイカ製の臨孔絶縁部材を備えたことを特徴とするインバータ装置。   In an inverter device including a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of an inverter, wherein power is converted between direct current and alternating current by a semiconductor switching element. A first mica insulating sheet sandwiched between at least two different polarity conductor plates of the plate and the AC conductor plate, wider than these conductor plates and protruding from the ends of these conductor plates, and provided on the laminated conductor plate A through hole, a connection member that contacts one of the conductor plates in each of the through holes, and one end of which is electrically connected to the inverter circuit component, and the other one of the conductor plates that does not contact the connection member. An inverter device comprising a mica-made near-hole insulating member loaded between a conductor plate end facing the through-hole and the through-hole. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、前記インバータの直流正負極導体板及び交流導体板のうち少なくとも2つの異極性導体板に挟まれ、これら導体板よりも広く、これら導体板の端部からはみ出す第1のマイカ製の絶縁シートと、前記積層導体板に設けた貫通孔と、これら貫通孔内でそれぞれ前記導体板の1つに接触し、一端がインバータ回路部品に電気的に接続された接続部材と、前記貫通孔のうち、前記接続部材が接触しない前記導体板の他の1つと前記接続部材との間の隙間に充填した樹脂製絶縁物を備えたことを特徴とするインバータ装置。   In an inverter device including a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of an inverter, wherein power is converted between direct current and alternating current by a semiconductor switching element. A first mica insulating sheet sandwiched between at least two different polarity conductor plates of the plate and the AC conductor plate, wider than these conductor plates and protruding from the ends of these conductor plates, and provided on the laminated conductor plate A through-hole, a connecting member that contacts one of the conductor plates in each of the through-holes, and one end of which is electrically connected to the inverter circuit component; and the conductor that does not contact the connecting member among the through-holes An inverter device comprising a resin insulator filled in a gap between another one of the plates and the connecting member. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、前記インバータの直流正負極導体板及び交流導体板のうち少なくとも2つの異極性導体板に挟まれたマイカ製の絶縁シートと、前記積層導体板に設けた貫通孔と、これら貫通孔内でそれぞれ前記直流正負極導体板の一方に接触し、一端がインバータ回路部品に電気的に接続された接続部材と、これら接続部材間で、この積層導体板からインバータ回路部品側に突出する絶縁突起部を備えたことを特徴とするインバータ装置。   In an inverter device including a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of an inverter, wherein power is converted between direct current and alternating current by a semiconductor switching element. An insulating sheet made of mica sandwiched between at least two different polarity conductor plates among the plate and the AC conductor plate, a through hole provided in the laminated conductor plate, and one of the DC positive and negative electrode conductor plates in each of the through holes And a connecting member electrically connected to the inverter circuit component at one end, and an insulating protrusion protruding from the laminated conductor plate to the inverter circuit component side between the connecting members. apparatus. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、2つの導体板に挟まれたマイカ製の前記絶縁シートと、2つの前記導体板のうちの1つを構成する前記インバータの直流導体板の1つと、2つの前記導体板のうちの他の1つを同一平面内を分け合うように構成する前記インバータの直流導体板の他の1つと交流導体板の1つと、これら異極性導体板である直流導体板の他の1つと交流導体板の1つの対峙する端部間に埋め込んだマイカ製の絶縁体を備えたことを特徴とするインバータ装置。   In an inverter device having a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates of different polarity of the inverter and that performs power conversion between direct current and alternating current by a semiconductor switching element, is sandwiched between two conductor plates The insulating sheet made of mica, one of the DC conductor plates of the inverter constituting one of the two conductor plates, and the other one of the two conductor plates are shared in the same plane. It is embedded between the other one of the DC conductor plates and one of the AC conductor plates of the inverter configured as described above, and the other one of the DC conductor plates which are different polarity conductor plates and one opposite end of the AC conductor plate. An inverter device comprising an insulator made of mica. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、2つの導体板に挟まれたマイカ製の前記絶縁シートと、2つの前記導体板のうちの1つを構成する前記インバータの直流導体板の1つと、2つの前記導体板のうちの他の1つを同一平面内を分け合うように構成する前記インバータの直流導体板の他の1つと交流導体板の1つと、これら異極性導体板である直流導体板の他の1つと交流導体板の1つの対峙する端部間をシート面で隔離するマイカ製の絶縁シートを備えたことを特徴とするインバータ装置。   In an inverter device having a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates of different polarity of the inverter and that performs power conversion between direct current and alternating current by a semiconductor switching element, is sandwiched between two conductor plates The insulating sheet made of mica, one of the DC conductor plates of the inverter constituting one of the two conductor plates, and the other one of the two conductor plates are shared in the same plane. A sheet between the other one of the DC conductor plates and one of the AC conductor plates of the inverter configured as described above, and the other one of the DC conductor plates which are different polarity conductor plates and the opposite end of the AC conductor plate An inverter device comprising an insulating sheet made of mica that is isolated on a surface. 請求項7において、端部間をシート面で隔離する前記マイカ製の絶縁シートは、前記各導体板の両端部をそれぞれ包み込む複数の絶縁シートを備えたことを特徴とするインバータ装置。   8. The inverter device according to claim 7, wherein the insulating sheet made of mica that separates end portions by a sheet surface includes a plurality of insulating sheets that wrap around both end portions of each conductor plate. 半導体スイッチング素子により直流と交流との間に電力変換を行い、インバータの異極性の2つの導体板に挟まれた絶縁シートを含む積層導体板を備えたインバータ装置において、異極性の2つの導体板に挟まれた第1のマイカ製の絶縁シートと、この絶縁シートを挟む導体板の1つを形成するように直流正負極導体板の一方及びこれと同一平面内を分け合う交流導体板の1つと、これら同一平面内を分け合う2つの導体板の対峙する各端部間に配置したマイカ製の絶縁体と、前記積層導体板の上下両面に貼り付けた第2及び第3のマイカ製の絶縁シートと、この積層導体板の端部で各導体板の端部を包み込むように前記第1〜第3のマイカ製の絶縁シートの端部間を塞ぐマイカ製の絶縁部材を備えたことを特徴とするインバータ装置。   Two inverter plates having different polarities in an inverter device having a laminated conductor plate that includes an insulating sheet sandwiched between two conductor plates having different polarities of the inverter, which performs power conversion between direct current and alternating current by a semiconductor switching element A first mica-made insulating sheet sandwiched between one of the DC positive and negative electrode conductor plates and one of the AC conductor plates sharing the same plane so as to form one of the conductor plates sandwiching the insulating sheet; The mica insulators disposed between the opposing ends of the two conductor plates that divide the same plane, and the second and third mica insulation sheets attached to the upper and lower surfaces of the laminated conductor plate And an insulating member made of mica that covers between the ends of the first to third mica insulating sheets so as to wrap the end of each conductor plate at the end of the laminated conductor plate. Inverter device. 請求項9において、前記積層導体板に設けた貫通孔と、これら貫通孔内でそれぞれ前記導体板の1つに接触し、一端がインバータ回路部品に電気的に接続された接続部材と、前記貫通孔のうち、前記接続部材が接触しない他の導体板と前記接続部材との間の隙間に充填した樹脂製絶縁物を備えたことを特徴とするインバータ装置。
In Claim 9, The through-hole provided in the said laminated conductor board, The connection member which contacts one of the said conductor boards in each of these through-holes, and one end was electrically connected to the inverter circuit component, The said penetration An inverter device comprising a resin insulator filled in a gap between another connecting plate that does not contact the connecting member and the connecting member.
JP2003360280A 2003-10-21 2003-10-21 Inverter device Active JP4343649B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003360280A JP4343649B2 (en) 2003-10-21 2003-10-21 Inverter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003360280A JP4343649B2 (en) 2003-10-21 2003-10-21 Inverter device

Publications (2)

Publication Number Publication Date
JP2005130542A true JP2005130542A (en) 2005-05-19
JP4343649B2 JP4343649B2 (en) 2009-10-14

Family

ID=34640632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003360280A Active JP4343649B2 (en) 2003-10-21 2003-10-21 Inverter device

Country Status (1)

Country Link
JP (1) JP4343649B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014150725A (en) * 2014-05-30 2014-08-21 Hitachi Automotive Systems Ltd Power conversion device and electric vehicle
US9407163B2 (en) 2008-10-31 2016-08-02 Hitachi Automotive Systems, Ltd. Power module, power converter device, and electrically powered vehicle
JP2016220356A (en) * 2015-05-19 2016-12-22 株式会社日立製作所 Power converter
JP2019021664A (en) * 2017-07-11 2019-02-07 東芝三菱電機産業システム株式会社 Laminate bus bar
DE112017006294T5 (en) 2017-01-17 2019-08-22 Hitachi Automotive Systems, Ltd. power converter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02299411A (en) * 1989-05-10 1990-12-11 Fuji Electric Co Ltd Connection device of flat conductor by parallel wiring
JPH0947036A (en) * 1995-07-25 1997-02-14 Aisin Aw Co Ltd Inverter
JPH1198815A (en) * 1997-09-19 1999-04-09 Hitachi Ltd Power converter, and multilayer conductor and electric component connector
JP2003197858A (en) * 2001-12-25 2003-07-11 Mitsubishi Electric Corp Power semiconductor device and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02299411A (en) * 1989-05-10 1990-12-11 Fuji Electric Co Ltd Connection device of flat conductor by parallel wiring
JPH0947036A (en) * 1995-07-25 1997-02-14 Aisin Aw Co Ltd Inverter
JPH1198815A (en) * 1997-09-19 1999-04-09 Hitachi Ltd Power converter, and multilayer conductor and electric component connector
JP2003197858A (en) * 2001-12-25 2003-07-11 Mitsubishi Electric Corp Power semiconductor device and its manufacturing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9407163B2 (en) 2008-10-31 2016-08-02 Hitachi Automotive Systems, Ltd. Power module, power converter device, and electrically powered vehicle
US9729076B2 (en) 2008-10-31 2017-08-08 Hitachi Automotive Systems, Ltd. Power module, power converter device, and electrically powered vehicle
US10348214B2 (en) 2008-10-31 2019-07-09 Hitachi Automotive Systems, Ltd. Power module, power converter device, and electrically powered vehicle
US11139748B2 (en) 2008-10-31 2021-10-05 Hitachi Astemo, Ltd. Power module, power converter device, and electrically powered vehicle
JP2014150725A (en) * 2014-05-30 2014-08-21 Hitachi Automotive Systems Ltd Power conversion device and electric vehicle
JP2016220356A (en) * 2015-05-19 2016-12-22 株式会社日立製作所 Power converter
DE112017006294T5 (en) 2017-01-17 2019-08-22 Hitachi Automotive Systems, Ltd. power converter
US10903754B2 (en) 2017-01-17 2021-01-26 Hitachi Automotive Systems, Ltd. Power converter
JP2019021664A (en) * 2017-07-11 2019-02-07 東芝三菱電機産業システム株式会社 Laminate bus bar

Also Published As

Publication number Publication date
JP4343649B2 (en) 2009-10-14

Similar Documents

Publication Publication Date Title
JP3550970B2 (en) Power converter, multilayer laminated conductor and electrical component connector
US20110221268A1 (en) Power Converter and In-Car Electrical System
US5894402A (en) Electrolytic capacitor and heat sink assembly
JP5935672B2 (en) Switching element unit
JP4343649B2 (en) Inverter device
JP2005192296A (en) Inverter device
US10079094B2 (en) Capacitor, in particular an intermediate circuit capacitor for a multi-phase system
WO2015162712A1 (en) Semiconductor module and power converter using same
WO2017051639A1 (en) Power conversion device
JP5090909B2 (en) Piezoelectric transformer
JP2005191233A (en) Power module
CN112805858A (en) Capacitance reduction in battery systems
JP2000215735A (en) Laminated bus bar
JP3788880B2 (en) Semiconductor stack
JPH10303349A (en) Wiring structure for semiconductor device
US5313363A (en) Low impedance interconnection assembly for high frequency switching power semiconductor devices and low inductance modular capacitor
WO2013179433A1 (en) Bus bar and power conversion device
JP4878424B2 (en) Power converter
CN109313983B (en) Power capacitor module with cooling arrangement
US20160198562A1 (en) Bus Structure with sealed dielectric interface to semiconductor switch package input connections for reduced terminal spacing and lower inductance while meeting regulatory requirements
JP2011134780A (en) Laminated capacitor
JP2010056206A (en) Semiconductor module
US9666365B2 (en) Laminated film capacitor, film capacitor module, and power conversion system
JP6646154B2 (en) Power converter
JP6293913B2 (en) Apparatus and method for contacting electrical components

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060426

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20060426

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081212

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090113

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090306

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: 20090707

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: 20090709

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

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4343649

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20130717

Year of fee payment: 4

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350