Invention Grant
- Patent Title: Rotor for a forced-air-cooled electric motor
- Patent Title (中): 转子用于强制风冷电动机
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Application No.: US12223691Application Date: 2006-04-06
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Publication No.: US07696663B2Publication Date: 2010-04-13
- Inventor: Michael Schmohl , Norbert Falter , Dietrich Holzwarth
- Applicant: Michael Schmohl , Norbert Falter , Dietrich Holzwarth
- Applicant Address: DE Nuertingen
- Assignee: Metabowerke GmbH
- Current Assignee: Metabowerke GmbH
- Current Assignee Address: DE Nuertingen
- Agent Paul Vincent
- International Application: PCT/EP2006/003146 WO 20060406
- International Announcement: WO2007/118483 WO 20071025
- Main IPC: H02K3/48
- IPC: H02K3/48 ; H02K3/34

Abstract:
A rotor (2) for a forced-air-cooled electric motor, in particular a universal motor, especially for use with electrical power tools, has a laminated armature (6) incorporating longitudinal slots (8) and with wire windings of a coil (10) protruding from the longitudinal slots (8) on the front face where the windings form coil connecting heads (20, 22). Some or all of the longitudinal slots (8) in the laminated armature (6) contain a rod (28) aligned in the longitudinal direction and protruding axially from one or both front faces (24, 26) of the laminated armature (6), whereby the protruding rod ends thus surround the coil connecting heads (20, 22) on the respective front face to protect the coil connecting heads from abrasive wear.
Public/Granted literature
- US20090051230A1 Rotor for a Forced-Air-Cooled Electric Motor Public/Granted day:2009-02-26
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