POWER CONVERSION DEVICE

• Main Authors: ITO TOMOMICHI, GOTO KENGO
• Format: Patent
• Language: English; Japanese
• Published: 24.10.2019
• 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; 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

To provide a power conversion device which can suppress a reduction of a conversion efficiency due to an increase of an ambient temperature of the power conversion device and which can reduce a temperature stress of a semiconductor element.SOLUTION: In a power conversion device 100 having a cooler 103 cooling a semiconductor element 102 within the power conversion device, the cooler 103 enhances cooling capacity and lowers an element temperature by a cooler driving system 110a when an outside air temperature is high, thereby increasing a power conversion efficiency of the power conversion device 100.SELECTED DRAWING: Figure 1 【課題】電力変換装置の周囲温度の増加による変換効率の低下を抑制させ、かつ、半導体素子の温度ストレスを低減させることが可能な電力変換装置を提供する。【解決手段】電力変換装置内の半導体素子１０２を冷却するための冷却器１０３を備える電力変換装置１００において、冷却器駆動システム１１０ａにより、冷却器１０３は、外気温が高い時に冷却能力を上げ、素子温度を低下させることで電力変換装置１００の電力変換効率を上昇させる。【選択図】図１