5-094
高温超伝導バルク磁石の静磁場を用いた希土類永久磁石への着磁実験及び数値解析
◎川崎信隆・上原 翔・福井 聡・小川 純・佐藤孝雄(新潟大学)・寺沢俊久・伊藤佳孝(イムラ材料開発研究所)・岡 徹雄(新潟大学)・横山和哉(足利工業大学)
This study was conducted to evaluate the magnetization performances of HTS bulk magnets for the interior permanent magnet motors (IPM motors). A demagnetized Nd-Fe-B permanent magnet was scanned in the strong magnetic field space just above the magnetic pole containing the HTS bulk magnet which generated the magnetic field 3.4 T. The sample magnet was subsequently found to be fully magnetized in the open space of the static magnetic fields. We retrieve IPM motor from the air-conditioner compressor of automobiles. Then, we examined and analyzed the magnetic field distributions when the magnetic poles were scanned to activate the magnet plates in the IPM rotor. By applying this kind of numerical analysis of the magnetization for the motor-rotors incorporated with rare-earth permanent magnets, we confirm it becomes possible for motors to give high degrees of freedom on their designing processes.