Invention Grant
- Patent Title: Self-starting permanent magnet synchronous motor and compressor and refrigeration cycle using the same
- Patent Title (中): 自启动永磁同步电动机和压缩机与制冷循环使用相同
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Application No.: US12851017Application Date: 2010-08-05
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Publication No.: US08405272B2Publication Date: 2013-03-26
- Inventor: Satoshi Kikuchi , Hiroyuki Mikami , Tomio Yoshikawa , Baiying Huang , Hideyuki Kumakura
- Applicant: Satoshi Kikuchi , Hiroyuki Mikami , Tomio Yoshikawa , Baiying Huang , Hideyuki Kumakura
- Applicant Address: JP Tokyo
- Assignee: Hitachi Appliances, Inc.
- Current Assignee: Hitachi Appliances, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2009-185045 20090807
- Main IPC: H02K21/46
- IPC: H02K21/46

Abstract:
There is provided a self-starting permanent magnet synchronous motor in which a center axis of magnetic poles of a rotor is assumed to be a d axis, an axis deviated from the magnetic pole center axis by an electric angle of 90 degrees is assumed to be a q axis, at least two or more starting bars which are arranged near the d axis are arranged on a bore side of the bars near the q axis and are arranged in parallel with the q axis, so that a stable starting torque can be generated irrespective of a generating position of a stator magnetic flux which changes due to applying timing of a power source and a phase of a voltage, and a vibration/noises at the time of a stationary operation can be reduced.
Public/Granted literature
- US20110030419A1 SELF-STARTING PERMANENT MAGNET SYNCHRONOUS MOTOR AND COMPRESSOR AND REFRIGERATION CYCLE USING THE SAME Public/Granted day:2011-02-10
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