| 简介 |
PROBLEM TO BE SOLVED : To provide a compressor that has a demagnetization yield strength even if an amount of Dy (dysprosium) included in a rare earth magnet used for an electric motor is reduced.
SOLUTION : A compressor according to the present invention comprises : a compression element for compressing a refrigerant; a hexapole electric motor having a rotor for driving the compression element, which is arranged by use of a neodymium rare earth magnet including iron, neodymium, boron and 4 wt.% or less of dysprosium, and which is to be used in an atmosphere of 100°C or higher; and a drive circuit for driving the electric motor, in which a GaN device is used in a rectification circuit.
SELECTED DRAWING : Figure 23
COPYRIGHT : (C)2019, JPO&INPIT |
客服热线：
手机版
二维码
