POWER CONVERSION DEVICE AND MANUFACTURING METHOD OF POWER CONVERSION DEVICE

• Main Author: SAKAI SHOJI
• Format: Patent
• Language: English; Japanese
• Published: 25.04.2019
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

To provide a power conversion device capable of improving heat resistance and heat dissipation and being downsized.SOLUTION: A power conversion device 1 includes a transformer 2, a diode 4 having a body housing a diode element and a pin electrically isolated from the body, and a reactor 3. The pin of the diode 4 is fixed and electrically connected to a primary winding 3c of the reactor 3 by welding. A secondary winding of the transformer 2 is provided with a press-fit portion into which the body of the diode 4 is press-fit, and the body of the diode 4 is press-fit and fixed to the press-fit portion and is in contact with a base 6 via a heat dissipation sheet 5.SELECTED DRAWING: Figure 1 【課題】耐熱性及び放熱性の向上および小型化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１は、トランス２と、ダイオード素子を収納したボディと当該ボディに電気的に絶縁されたピンとを有するダイオード４と、リアクトル３とを備える。リアクトル３の１次巻線３ｃにダイオード４のピンが溶接により固定されて電気的に接続される。トランス２の２次巻線にダイオード４のボディが圧入される圧入部が設けられて、ダイオード４のボディは当該圧入部に圧入されて固定され、放熱シート５を介してベース６に接触している。【選択図】図１