POWER CONVERSION APPARATUS

• US 20170317605A1
• Filed: 07/20/2017
• Published: 11/02/2017
• Est. Priority Date: 02/13/2015
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: TAKEUCHI, Kazuya, MATSUOKA, Tetsuya, TANABE, Ryota
• Granted Patent: US 10,135,356 B2
• Time in Patent Office: Days
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/20263 Heat dissipaters releasing heat from coolant
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.

Claims

1. A power conversion apparatus comprising:

a capacitor including;

a capacitor element including;

a dielectric body; and

a metal layer formed on a surface of the dielectric body;

an electrode part connected to the metal layer; and

a bus bar connected to the electrode part; and

a heat dissipation member for cooling the capacitor, the heat dissipation member having a narrow face and a broad face broader than its narrow face, the broad face of the heat dissipation member being arranged to face the electrode part.

2. The power conversion apparatus according to claim 1, wherein:

the electrode part has a narrow face and a broad face broader than its narrow face; and

the broad face of the heat dissipation member is arranged to face the broad face of the electrode part.

3. The power conversion apparatus according to claim 2, wherein:

part of the bus bar is interposed between the broad face of the heat dissipation member and the capacitor element.

4. The power conversion apparatus according to claim 3, wherein:

the capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged.