公开(公告)号：MY155225A

公开(公告)日：2015-09-30

申请号：MYPI9602094

申请日：1996-05-30

Applicant: PANASONIC CORP

Inventor： HONDA YUKIO ,  MURAKAMI HIROSHI ,  NARAZAKI KAZUSHIGE ,  ITO HIROSHI ,  SHINTO MASAYUKI ,  ASANO YOSHINARI ,  KADOYA NAOYUKI

IPC: H02K1/27 ,  H02K21/14

Abstract: A ROTOR OF A MOTOR COMPRISES A PLURALITY OF SETS OF PERMANENT MAGNETS (8A, 8B) EMBEDDED IN THE ROTOR (3), AND EACH SET INCLUDES A PERMANENT MAGNET (8A) AT THE INNER SIDE AND ANOTHER PERMANENT MAGNET (8B) AT THE OUTER SIDE WITH A DISTANCE BETWEEN THEM. EACH PERMANENT MAGNET (8A, 8B) IS FORMED LIKE AN ARCH PROJECTING TOWARDS THE CENTER OF THE ROTOR (3). THEN, MAGNETIC FLUX BECOMES EASY TO FLOW THROUGH AN INTERVAL BETWEEN THE PERMANENT MAGNETS (8A, 8B) AT THE INNER AND OUTER SIDES, AND THE INDUCTANCE IN Q-AXIS IS ENLARGED. THEN, THE RELUCTANCE TORQUE IS GENERATED IN ADDITION TO THE MAGNET TORQUE, AND THE MOTOR HAS A HIGH TORQUE AND A HIGH OUTPUT POWER.