Invention Grant
US07446447B2 Magnetic structure and motor employing said magnetic structure, and driver comprising said motor
有权
采用所述磁结构的磁结构和电动机，以及包括所述电动机的驱动器
- Patent Title: Magnetic structure and motor employing said magnetic structure, and driver comprising said motor
- Patent Title (中): 采用所述磁结构的磁结构和电动机，以及包括所述电动机的驱动器
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Application No.: US10533651Application Date: 2003-11-18
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Publication No.: US07446447B2Publication Date: 2008-11-04
- Inventor: Kesatoshi Takeuchi
- Applicant: Kesatoshi Takeuchi
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2002-334160 20021118; JP2003-157229 20030602; JP2003-175456 20030619; JP2003-313170 20030904
- International Application: PCT/JP03/14667 WO 20031118
- International Announcement: WO2004/047258 WO 20040603
- Main IPC: H02K17/44
- IPC: H02K17/44
Abstract:
Provided is a small motor superior in weight/torque balance. A phase stator 10 and B phase stator 12 are disposed to face each other. A rotor is interpositioned between these stators. Electromagnetic coils @ are provided to the stators evenly in the circumferential direction. A permanent magnet is provided to the rotor evenly in the circumferential direction. The exciting polarity of the electromagnetic coil is alternately opposite, and this is the same for the permanent magnet. A signal having a prescribed frequency is input to the A phase electromagnetic coil and B phase electromagnetic coil. The rotor rotates between the stators as a result thereof.
Public/Granted literature
- US20060071577A1 Magnetic structure and motor employing said magnetic structure, and driver comprising said motor Public/Granted day:2006-04-06
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