JP5634429B2 - パワー半導体モジュール - Google Patents
パワー半導体モジュール Download PDFInfo
- Publication number
- JP5634429B2 JP5634429B2 JP2012078794A JP2012078794A JP5634429B2 JP 5634429 B2 JP5634429 B2 JP 5634429B2 JP 2012078794 A JP2012078794 A JP 2012078794A JP 2012078794 A JP2012078794 A JP 2012078794A JP 5634429 B2 JP5634429 B2 JP 5634429B2
- Authority
- JP
- Japan
- Prior art keywords
- heat radiating
- power semiconductor
- sealing body
- connecting member
- semiconductor module
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4871—Bases, plates or heatsinks
- H01L21/4878—Mechanical treatment, e.g. deforming
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- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
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- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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Description
本発明の実施形態に係る電力変換装置は、ハイブリッド用の自動車や純粋な電気自動車に適用可能であるが、代表例として、本発明の実施形態に係る電力変換装置をハイブリッド自動車に適用した場合の制御構成と電力変換装置の回路構成について、図1と図2を用いて説明する。
302 モジュール一次封止体
304 モジュールケース
304A 第1連結部材
304C 第2連結部材
305 フィン
306C 側壁部
307A 第1放熱部材
307B 第2放熱部材
328、330 IGBT
333 絶縁部材
L1 調整部長さ
L2 板バネ部長さ
Claims (10)
- 直流電力と交流電力に変換する半導体素子と、前記半導体素子の両側に配置され、前記半導体素子の電極面とはんだを介して接続される導体板と、前記半導体素子と前記導体板を樹脂で封止した封止体と、当該封止体を収納するためのケースと、当該封止体と前記ケースの間に配置される絶縁部材と、を備え、
前記ケースは、
前記封止体の一方の面と対向する第1放熱部材と、
前記封止体の一方の面とは反対側の他方の面と対向する第2放熱部材と、
前記第1放熱部材と接続されるとともに、前記第1放熱部材を囲んで形成される第1連結部材と、
前記第2放熱部材と接続されるとともに、前記第2放熱部材を囲んで形成される第2連結部材と、前記第1連結部材及び前記第2連結部材と接続される側壁部と、を有し、
前記第2放熱部材を、前記封止体から離れる方向に変位させた際のスプリングバック量が、前記第1放熱部材を、前記封止体に近づける方向に同じだけ変位させた際のスプリングバック量よりも大きくなるように構成され、前記封止体はスプリングバック量の差による圧縮応力を受けるパワー半導体モジュール。 - 直流電力と交流電力に変換する半導体素子と、前記半導体素子の両側に配置され、前記半導体素子の電極面とはんだを介して接続される導体板と、前記半導体素子と前記導体板を樹脂で封止した封止体と、当該封止体を収納するためのケースと、当該封止体と前記ケースの間に配置される絶縁部材と、を備え、
前記ケースは、
前記封止体の一方の面と対向する第1放熱部材と、
前記封止体の一方の面とは反対側の他方の面と対向する第2放熱部材と、
前記第1放熱部材と接続されるとともに、前記第1放熱部材を囲んで形成される第1連結部材と、
前記第2放熱部材と接続されるとともに、前記第2放熱部材を囲んで形成される第2連結部材と、
前記第1連結部材及び前記第2連結部材と接続される側壁部と、を有し、
前記側壁部は、前記第1放熱部材及び前記第1連結部材により塞がれる第1開口部と、前記第2放熱部材及び前記第2連結部材により塞がれる第2開口部と、を形成し、
前記第2放熱部材を、前記封止体から離れる方向に変位させた際のスプリングバック量が、前記第1放熱部材を、前記封止体に近づける方向に同じだけ変位させた際のスプリングバック量よりも大きくなるように構成され、前記封止体はスプリングバック量の差による圧縮応力を受けるパワー半導体モジュール。 - 請求項1、または2に記載のパワー半導体モジュールであって、
前記第1連結部材及び前記第2連結部材の厚さは、前記第1放熱部材と前記第2放熱部材と前記側壁部のそれぞれの厚さよりも小さく形成され、
前記第1連結部材及び前記第2連結部材の剛性は、前記第1放熱部材と前記第2放熱部材と前記側壁部のそれぞれの剛性よりも小さいパワー半導体モジュール。 - 請求項1〜3に記載のいずれかのパワー半導体モジュールであって、
前記第1放熱部材と前記第1連結部材との接続部を第1接続部と定義し、前記第1連結部材と前記側壁部との接続部を第2接続部と定義し、前記第2放熱部材と前記第2連結部材との接続部を第3接続部と定義し、前記第2連結部材と前記側壁部との接続部を第4接続部と定義した場合、
前記第3接続部から前記第4接続部までの前記第2連結部材の長さは、前記第1接続部から前記第2接続部までの前記第1連結部材の長さよりも大きいパワー半導体モジュール。 - 請求項4に記載のパワー半導体モジュールであって、
前記第2連結部、あるいは、前記第1連結部材と前記第2連結部材の両方は、屈曲部を有するパワー半導体モジュール。 - 請求項4または5に記載のパワー半導体モジュールであって、
前記封止体と対向する前記第1放熱部材の対向面の垂直方向から投影した場合、
前記第2放熱部材は、前記第2放熱部材の斜影部が前記第1放熱部材の斜影部より小さくなるように形成されるパワー半導体モジュール。 - 請求項1〜6に記載のいずれかのパワー半導体モジュールであって、
前記第1放熱部材と前記第1連結部材は、一体に形成され、
前記第2放熱部材と前記第2連結部材は、一体に形成され、
前記第1連結部材は、前記側壁部とレーザ溶接、あるいは摩擦撹拌接合により接合され、
前記第2連結部材は、前記側壁部とレーザ溶接、あるいは摩擦撹拌接合により接合されるパワー半導体モジュール。 - 請求項7に記載されたパワー半導体モジュールにおいて、
前記第1連結部材は前記封止体が配置された側に凸となる形状であり、
前記第2連結部材は前記封止体が配置された側とは反対方向に凸となる形状であるパワー半導体モジュール。 - 請求項8に記載されたパワー半導体モジュールにおいて、
前記凸形状の高さが、前記第1接続部と前記第2接続部とで異なることを特徴とするパワー半導体モジュール。 - 請求項1〜9に記載されたいずれかのパワー半導体モジュールにおいて、
前記第1連結部と前記第2連結部に別の材料を用いていることを特徴とするパワー半導体モジュール。
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US10080313B2 (en) * | 2014-01-27 | 2018-09-18 | Hitachi, Ltd. | Power module and method for manufacturing the same |
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