PROBLEM TO BE SOLVED: To obtain an on-vehicle DCDC converter enhancing compaction and assemblability.SOLUTION: An on-vehicle DCDC converter includes an inverter circuit 10, a transformer 20, a rectifier circuit 30 having a rectifier element for rectifying a power transmitted to the secondary wirings 22, 23 of the transformer 20, a smoothing coil 41 and a smoothing capacitor 42, and a metal housing 106 for fixing them and becoming a return path of a current flowing through the rectifier circuit 30. A press-fit diode 101 having a pin 104, i.e., a cathode terminal, and a press-fit portion 103, i.e., an anode terminal, are used as the rectifier element. A sub-module 110 formed integrally by press-fitting the press-fit portion 103 of the press-fit diode 101 to the aperture 107a of a metallic fixing member 107 is connected electrically and mechanically with the metal housing 106, and the pin 104 of the press-fit diode 101 and the ends of the secondary wirings 22, 23 of the transformer 20 are connected directly.SELECTED DRAWING: Figure 3
【課題】小型化と組み立て性を向上させた車載用DCDCコンバータを得る。【解決手段】インバータ回路10と、トランス20と、トランス20の二次巻線22,23に伝達された電力を整流する整流素子を有する整流回路30と、平滑コイル41および平滑コンデンサ42と、これらを固定するとともに整流回路30に流れる電流のリターン経路となる金属筐体106とを備え、整流素子には、カソード端子であるピン104とアノード端子である圧入部103を有する圧入ダイオード101が用いられ、金属製の固定部材107の開孔部107aに圧入ダイオード101の圧入部103が圧入されて一体に形成されたサブモジュール110が、金属筐体106に電気的および機械的に接続され、圧入ダイオード101のピン104とトランス20の二次巻線22,23の端部とが直接接続されて構成されている。【選択図】図3
ON-VEHICLE DCDC CONVERTER
車載用DCDCコンバータ
19.05.2016
Patent
Elektronische Ressource
Japanisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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