JP2019161967A - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- JP2019161967A JP2019161967A JP2018048940A JP2018048940A JP2019161967A JP 2019161967 A JP2019161967 A JP 2019161967A JP 2018048940 A JP2018048940 A JP 2018048940A JP 2018048940 A JP2018048940 A JP 2018048940A JP 2019161967 A JP2019161967 A JP 2019161967A
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- fuse
- resin member
- semiconductor element
- power
- power semiconductor
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Abstract
Description
上記バスバーは、上記配線部材と接続する接続端子を有し、上記接続端子にヒューズ部を設けたものである。
図1は実施の形態1に係る電力変換装置の斜視図である。また、図2は図1の一部を示す上面図、図3は図2のA−A線断面図である。図1から図3に示すように、実施の形態1に係る電力変換装置は、複数の電力変換モジュール10と、バスバー11と、筐体12とで構成されている。
また、配線部材17の電極接続部分のヒートシンク13側の面は、モールド樹脂21により覆われていても良い。この際、配線部材17の電極接続部分のヒートシンク13側の面を覆うモールド樹脂21は、電力用半導体素子14側の面を覆うモールド樹脂21と異なる熱伝導率を有していても良い。
次に、実施の形態2に係る電力変換装置について説明する。実施の形態2に係る電力変換装置の基本的な構成は実施の形態1と同様であるが、ヒューズ部と筐体を構成するヒートシンクとの間にヒューズ樹脂部材を設けた点が異なる。
次に、実施の形態3に係る電力変換装置について説明する。実施の形態3に係る電力変換装置の基本的な構成は実施の形態1と同様であるが、ヒューズ部周辺にヒューズ樹脂部材を設けた点が異なる。
次に、実施の形態4に係る電力変換装置について説明する。実施の形態4に係る電力変換装置の基本的な構成は実施の形態3と同様であるが、ヒューズ部周辺のヒューズ樹脂部材の構成が一部異なる。
次に、実施の形態5に係る電力変換装置について説明する。実施の形態5に係る電力変換装置の基本的な構成は実施の形態4と同様であるが、ヒートシンクとヒューズ部周辺のヒューズ樹脂部材の構成が一部異なる。
次に、実施の形態6に係る電力変換装置について説明する。実施の形態6に係る電力変換装置の基本的な構成は実施の形態4と同様であるが、ヒューズ部周辺のヒューズ樹脂部材の構成が一部異なる。
従って、例示されていない無数の変形例が、本願明細書に開示される技術の範囲内において想定される。例えば、少なくとも1つの構成要素を変形する場合、追加する場合または省略する場合、更には、少なくとも1つの構成要素を抽出し、他の実施の形態の構成要素と組み合わせる場合が含まれるものとする。一例を挙げれば、
(1)上記の各実施の形態においては、電力用半導体素子14及び配線部材17が、樹脂部材であるモールド樹脂21により封止された電力変換モジュール10を例として説明した。しかし、本願の実施の形態はこれに限定されない。即ち、電力用半導体素子14及び配線部材17が、モールド樹脂21により封止されておらず、パッケージ化されていなくてもよい。即ち、モールド樹脂21に封止されていない状態の電力用半導体素子14及び配線部材17などが封止樹脂部材24により筐体12の内部に封止されてもよい。この場合は、配線部材17はバスバー11などとされ、ヒューズ部23は、封止樹脂部材24に封止されている正極側又は負極側の電極配線部材の部分に設けてもよい。
(2)また、上記の各実施の形態においては、ヒューズ部23は、正極側の配線部材17aに接続する接続端子11aに設けている場合を例として説明した。しかし、本願に係る電力変換装置の実施の形態はこれに限定されない。即ち、ヒューズ部23は、電力用半導体素子14の主電極に接続された配線部材17に接続する、封止樹脂部材24に封止されたバスバー11の部分であれば、何れの箇所に設けてもよい。例えば、ヒューズ部23は、負極側の配線部材17bと接続するバスバー(図示しない)に設けても良い。
上記筐体の底部の上記ヒューズ部と対向する内面に、上記ヒューズ部側に突出する突部を設けたものである。
Claims (12)
- 電力用半導体素子と、
上記電力用半導体素子の電極に接続された配線部材と、
上記電力用半導体素子に電力を供給するバスバーと、
上記電力用半導体素子を収納する筐体と、
を備え、
上記バスバーは、上記配線部材と接続する接続端子を有し、上記接続端子にヒューズ部を設けたことを特徴とする電力変換装置。 - 上記ヒューズ部は、電流の流れる方向の前後の部分よりも断面積が小さい上記接続端子の部分により構成されていることを特徴とする請求項1に記載の電力変換装置。
- 上記電力用半導体素子、上記配線部材、上記バスバー、及び上記ヒューズ部を、上記筐体の内部に封止する封止樹脂部材を備えたことを特徴とする請求項1または2に記載の電力変換装置。
- 上記ヒューズ部と上記筐体の底部との間に、ヒューズ樹脂部材を設けたことを特徴とする請求項1から3の何れか一項に記載の電力変換装置。
- 上記ヒューズ部の上記筐体の底部と反対側に、ヒューズ樹脂部材を設けたことを特徴とする請求項1から4の何れか一項に記載の電力変換装置。
- 電力用半導体素子と、
上記電力用半導体素子の電極に接続された配線部材と、
上記電力用半導体素子に電力を供給するバスバーと、
上記電力用半導体素子を収納する筐体と、
上記バスバーに形成され、上記配線部材と接続する接続端子と、
上記接続端子に設けられたヒューズ部と、
上記電力用半導体素子、上記配線部材、上記バスバー、及び上記ヒューズ部を、上記筐体の内部に封止する封止樹脂部材と、
上記ヒューズ部と上記筐体の底部との間、及び上記ヒューズ部の上記筐体の底部と反対側の少なくとも一方に設けられたヒューズ樹脂部材と、を備え、
上記ヒューズ樹脂部材は、上記封止樹脂部材よりもヤング率が低い部材で構成されていることを特徴とする電力変換装置。 - 上記ヒューズ樹脂部材のヤング率は、10メガパスカルから30メガパスカルの間の値であることを特徴とする請求項6に記載の電力変換装置。
- 上記ヒューズ樹脂部材は、上記ヒューズ部が溶断した時に生じるアーク放電を消弧する樹脂で構成されていることを特徴とする請求項4から7の何れか一項に記載の電力変換装置。
- 上記筐体の底部の上記ヒューズ部と対向する内面に、上記ヒューズ部側に突出する突部を設けたことを特徴とする請求項1から8の何れか一項に記載の電力変換装置。
- 上記筐体の底部の上記ヒューズ部と対向する内面に、上記ヒューズ部とは反対側に窪む窪み部を設けたことを特徴とする請求項1から9の何れか一項に記載の電力変換装置。
- 上記筐体に上記ヒューズ部を囲うヒューズ樹脂部材を配置したことを特徴とする請求項1から10の何れか一項に記載の電力変換装置。
- 上記筐体は、底部が金属製のヒートシンクで構成された有底筒状に形成されていることを特徴とする請求項1から11の何れか一項に記載の電力変換装置。
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US16/029,120 US10748859B2 (en) | 2018-03-16 | 2018-07-06 | Power converting device |
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JP2021069180A (ja) * | 2019-10-23 | 2021-04-30 | 三菱電機株式会社 | 電力変換装置および電力変換装置一体型回転電機 |
JP7086249B1 (ja) | 2021-03-30 | 2022-06-17 | 三菱電機株式会社 | 電力変換装置及びそれを用いた回転電機 |
JP7337214B1 (ja) | 2022-03-24 | 2023-09-01 | 三菱電機株式会社 | 電力変換装置 |
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JP2021069180A (ja) * | 2019-10-23 | 2021-04-30 | 三菱電機株式会社 | 電力変換装置および電力変換装置一体型回転電機 |
JP7086249B1 (ja) | 2021-03-30 | 2022-06-17 | 三菱電機株式会社 | 電力変換装置及びそれを用いた回転電機 |
JP2022153956A (ja) * | 2021-03-30 | 2022-10-13 | 三菱電機株式会社 | 電力変換装置及びそれを用いた回転電機 |
JP7337214B1 (ja) | 2022-03-24 | 2023-09-01 | 三菱電機株式会社 | 電力変換装置 |
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US20190287933A1 (en) | 2019-09-19 |
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