POWER CONVERSION DEVICE

Provided is a power conversion device including, in a housing: power semiconductor elements, a support case, to which a DC input terminal and an AC output terminal are attached, the DC input terminal and the AC output terminal being connected to the power semiconductor elements, a heat sink,in which...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HASHII, Naoya, MIZUNO, Yoshifumi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	Provided is a power conversion device including, in a housing: power semiconductor elements, a support case, to which a DC input terminal and an AC output terminal are attached, the DC input terminal and the AC output terminal being connected to the power semiconductor elements, a heat sink,in which a plurality of boss portions are formed on an upper surface thereof, and to which the power semiconductor elements and the support case are attached; a smoothing capacitor including a case member having a plurality of leg portions; and a bus bar configured to connect the smoothing capacitor and the DC input terminal, wherein, in the power conversion device in which the plurality of leg portions of the case member being respectively fixed to the plurality of boss portions of the heat sink, wherein materials and dimensions of the respective boss portions, the respective leg portions, the support case, and the bus bar are determined so that a total thermal expansion/contraction amount of the respective boss portions and the respective leg portions falls within a range of 0.9 to 1.1 relative to a total thermal expansion/contraction amount of the support case and the bus bar.