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1. WO2021058461 - ELECTRIC ROTATING MACHINE HAVING PERMANENT MAGNETS

Publication Number WO/2021/058461
Publication Date 01.04.2021
International Application No. PCT/EP2020/076389
International Filing Date 22.09.2020
IPC
H02K 1/27 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
CPC
H02K 1/278
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
278Surface mounted magnets; Inset magnets
H02K 2205/12
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
2205Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
12Machines characterised by means for reducing windage losses or windage noise
H02K 2213/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
2213Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
03Machines characterised by numerical values, ranges, mathematical expressions or similar information
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • BALKE, Benjamin
  • BRACH, Karsten
  • CENTNER, Matthias
  • KRABINSKI, Jeffrey
  • MEYER, Christian
  • WILCKE, Ralf
Agents
  • MAIER, Daniel
Priority Data
19199993.727.09.2019EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ELEKTRISCHE ROTIERENDE MASCHINE MIT PERMANENTMAGNETEN
(EN) ELECTRIC ROTATING MACHINE HAVING PERMANENT MAGNETS
(FR) MACHINE TOURNANTE ÉLECTRIQUE À AIMANTS PERMANENTS
Abstract
(DE)
Die Erfindung betrifft eine elektrische rotierende Maschine (2) mit einem Rotor (6) und einem Stator (8), wobei zwischen dem Rotor (6) und dem Stator (8) ein Spalt (10) ausgebildet ist, wobei am Rotor (6) in Umfangsrichtung Magnetpole (12) angeordnet sind, wobei die Magnetpole (12) jeweils eine Mehrzahl von, insbesondere quaderförmigen, Permanentmagneten (14) aufweisen, die mit zumindest einer Aufnahmevorrichtung verbunden sind. Um eine elektrische rotierende Maschine bereitzustellen, die während des Betriebes, im Vergleich zum Stand der Technik, ein verbessertes akustisches Verhalten aufweist, wird vorgeschlagen, dass die zumindest eine Aufnahmevorrichtung der Magnetpole (12) zumindest in einem Verbindungsbereich mit den Permanentmagneten (14) eine in Umfangsrichtung treppenförmig ausgestaltete Kontur (20) aufweist, welche an die Form der Permanentmagnete (14) angepasst ist.
(EN)
The invention relates to an electric rotating machine (2) having a rotor (6) and a stator (8), wherein: a gap (10) is formed between the rotor (6) and the stator (8); magnet poles (12) are arranged on the rotor (6) in the circumferential direction; and the magnet poles (12) each have a plurality of particularly cuboid permanent magnets (14) that are connected to at least one holding device. In order to provide an electric rotating machine which has an improved acoustic behavior during operation as compared to prior art machines, the at least one holding device of the magnet poles (12) has a stepped peripheral contour (20) at least in a connecting region with the permanent magnets (14), said contour being adapted to the form of the permanent magnets (14).
(FR)
Machine tournante électrique (2) possédant un rotor (6) et un stator (8) : un espace (10) est formé entre le rotor (6) et le stator (8) ; des pôles magnétiques (12) sont disposés sur le rotor (6) dans la direction circonférentielle ; et les pôles magnétiques (12) comportent chacun une pluralité d'aimants permanents (14) particulièrement parallélépipédiques qui sont reliés à au moins un dispositif de maintien. Afin de fournir une machine tournante électrique qui présente un comportement acoustique amélioré en fonctionnement par rapport aux machines de l'état de la technique, le ou les dispositifs de maintien des pôles magnétiques (12) présentent un contour périphérique étagé (20) au moins dans une zone de liaison avec les aimants permanents (14), ledit contour étant adapté à la forme des aimants permanents (14).
Also published as
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