Invention Grant
- Patent Title: Rotor of an asynchronous machine with retaining element
- Patent Title (中): 具有保持元件的异步机的转子
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Application No.: US13672199Application Date: 2012-11-08
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Publication No.: US08946969B2Publication Date: 2015-02-03
- Inventor: Volker Dölz
- Applicant: Volker Dölz
- Applicant Address: DE München
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE München
- Agency: Henry M. Feiereisen LLC
- Priority: EP11188355 20111109
- Main IPC: H02K15/12
- IPC: H02K15/12 ; H02K15/00 ; H02K15/06 ; H02K17/16 ; H02K17/18 ; H02K15/16

Abstract:
A squirrel-cage rotor of an asynchronous machine, in particular a die-cast rotor, includes a rotatable shaft, a laminated core being rotation-locked on the shaft and having grooves and opposing end faces. A squirrel-cage winding has rotor rods disposed in the grooves and a cage ring disposed on each of the end faces and electrically connecting the rotor rods. A pair of retaining elements is disposed on the shaft, wherein each retaining element extends in a radial direction in form of a disk or a spoke and has in an axial direction a wall and/or an axially extending finger. The wall overlaps on a radial periphery in the axial direction both the cage ring and a predefined axial section of the rotor rods that terminate in the cage ring, without increasing an external diameter of the laminated core.
Public/Granted literature
- US20130113331A1 ROTOR OF AN ASYNCHRONOUS MACHINE WITH RETAINING ELEMENT Public/Granted day:2013-05-09
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