Invention Grant
- Patent Title: Rotor for permanent magnet motor
- Patent Title (中): 永磁电机转子
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Application No.: US12082201Application Date: 2008-04-08
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Publication No.: US07808147B2Publication Date: 2010-10-05
- Inventor: Reinhard Riedl , Thomas Pritzen
- Applicant: Reinhard Riedl , Thomas Pritzen
- Applicant Address: LI Schaan
- Assignee: Hilti Aktiengesellschaft
- Current Assignee: Hilti Aktiengesellschaft
- Current Assignee Address: LI Schaan
- Agency: Abelman, Frayne & Schwab
- Priority: DE102007000213 20070410
- Main IPC: H02K1/17
- IPC: H02K1/17

Abstract:
A rotor (3) for a permanent magnet motor has a is rotatable around an axis of rotation (A) and has a plurality of axially extending permanent magnets (6) which are offset circumferentially in a symmetrical manner and arranged, respectively, in receptacles (16) of a yoke (7) which is assembled from axially stacked sheet lamellas (10), with the sheet lamellas (10) each having a coaxial inner hole (9), at least a first recess (8a) which is open toward the inner hole (9), and one second recess (8b) which is closed toward the inner hole (9), and with the lamellas being formed in a rotationally symmetrical manner so as to be offset at least by a phase angle, with at least two sheet lamellas (10) being oriented so as to be offset relative to one another by half of the phase angle.
Public/Granted literature
- US20080252165A1 Rotor for permanent magnet motor Public/Granted day:2008-10-16
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