PERMANENT MAGNETIC ROTATING ELECTRIC MACHINE, AND WIND POWER GENERATING SYSTEM,申请号JP20100076566-传众专利搜索

PERMANENT MAGNETIC ROTATING ELECTRIC MACHINE, AND WIND POWER GENERATING SYSTEM

申请公布号：JP2011211816(A)

申请号：JP20100076566

申请日期：2010.03.30

申请公布日期：2011.10.20

申请人：

HITACHI LTD

发明人：KORI DAISUKE;SERITA SHOGO;FUJIGAKI TETSURO;ENDO MASAAKI;YASUI YOSHIHIRO;NAGANO AI;KIMURA MAMORU;IIZUKA MOTONOBU;KOMURA AKIYOSHI

分类号：H02K9/06;H02K7/18;H02K9/19;H02K21/14

主分类号：H02K9/06

摘要：PROBLEM TO BE SOLVED: To provide a permanent magnetic rotating electric machine for efficiently reducing a temperature rise inside a rotating electric machine without upsizing a heat exchanger and a water-cooling unit.SOLUTION: The permanent magnetic rotating electric machine includes: a stator where a stator coil is wound on a stator iron core; a rotor that is oppositely disposed to the stator iron core of the stator with a predetermined spacing and includes a plurality of permanent magnets arranged in a circumferential direction in a rotor iron core fixed to a shaft; a water-cooling unit disposed at a periphery side of the stator iron core; and a fan that is fixed to a shaft at least at one side of an axial edge of the rotor iron core and circulates cooling air inside the machine. In the permanent magnetic rotating electric machine, ventilation paths through which the cooling air passes are around the outer circumference of the water-cooling unit, the cooling air cooled by the fan through circulation within the machine is led to the ventilation paths, and the cooling air subjected to heat exchange performed between the cooling air passing inside the ventilation paths and the water-cooling unit is recirculated inside the machine.