POWER CONVERSION DEVICE

• Main Author: YABUUCHI NAOYA
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: 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; 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 TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

It is necessary to suppress heating of a capacitor caused by heat generated in a power supply wiring with respect to the capacitor connected to the power supply wiring, and to reduce parasitic inductance of a capacitor connection wiring connected between the power supply wiring and the capacitor. A power conversion device is provided with: a power conversion circuit (10) having semiconductor switching elements (13u, 14u, 13v, 14v, 13w, 14w); a power supply wiring (60P) electrically connected to the power conversion circuit (10); a capacitor element (20P); and a first capacitor connection wiring (70P) electrically connected between the power supply wiring (60P) and one electrode of the capacitor element (20P), the first capacitor connection wiring (70P) having a first opposing wiring portion (71P) having one end electrically connected to the power supply wiring (60P), and a second opposing wiring portion (72P) having the other end electrically connected to one electrode of the capacitor element (20P), the seco