Invention Grant
- Patent Title: AC motor with loop windings and improved magnetic flux paths
- Patent Title (中): 具有回路绕组的交流电机和改进的磁通路径
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Application No.: US12654497Application Date: 2009-12-22
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Publication No.: US08395294B2Publication Date: 2013-03-12
- Inventor: Masayuki Nashiki , Shinji Makita , Yoshinobu Kamada , Eisuke Takahashi
- Applicant: Masayuki Nashiki , Shinji Makita , Yoshinobu Kamada , Eisuke Takahashi
- Applicant Address: JP Kariya
- Assignee: Denso Corporation
- Current Assignee: Denso Corporation
- Current Assignee Address: JP Kariya
- Agency: Oliff & Berridge, PLC
- Priority: JP2008-323717 20081219
- Main IPC: H02K3/16
- IPC: H02K3/16

Abstract:
An AC motor having loop windings is provided, which is able to reduce unbalance of three-phase impedance to enhance the motor efficiency. Three loop windings of the three phases are interlinked with magnetic fluxes Φu, Φv and Φw of the respective phases to provide magnetic paths of the three phases. The magnetic paths of the three phases are connected to the respective stator poles of the three phases to configure the motor. The magnetic path of each of the three phases is formed by processing an electromagnetic steel plate using bending to provide a motor configuration having multiple stator poles. Magnetic fluxes of two or more stator poles of the same phase are collected to a single magnetic path to form a three-dimensional three-phase magnetic path without allowing close contact with a magnetic path of a different phase.
Public/Granted literature
- US20100156232A1 Brushless AC motor Public/Granted day:2010-06-24
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