Invention Grant
- Patent Title: Permanent magnet synchronous motor, rotor of the same, and compressor using the same
- Patent Title (中): 永磁同步电动机，转子及其相同的压缩机
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Application No.: US11758097Application Date: 2007-06-05
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Publication No.: US07772736B2Publication Date: 2010-08-10
- Inventor: Akeshi Takahashi , Haruo Koharagi , Satoshi Kikuchi , Tomio Yoshikawa , Baiying Huang
- Applicant: Akeshi Takahashi , Haruo Koharagi , Satoshi Kikuchi , Tomio Yoshikawa , Baiying Huang
- 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: JP2006-160416 20060609; JP2006-310937 20061117
- Main IPC: H02K21/12
- IPC: H02K21/12
Abstract:
The inventive self-initiated permanent magnet synchronous motor has a rotor that has two-pole permanent magnets, as well as magnetic substances in a peripheral direction between the magnetic poles of the permanent magnets. The present invention provides a high-efficiency, high-torque permanent magnet synchronous motor with an improved power factor, its rotor, and a compressor using the permanent magnet synchronous motor, without a reduction in the maximum torque and an increase in costs.
Public/Granted literature
- US20070284961A1 Permanent Magnet Synchronous Motor, Rotor of the Same, and Compressor Using the Same Public/Granted day:2007-12-13
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