DE2412307A1 - PERMANENTLY EXCITED ELECTRIC MACHINE - Google Patents

PERMANENTLY EXCITED ELECTRIC MACHINE

Info

Publication number
DE2412307A1
DE2412307A1 DE19742412307 DE2412307A DE2412307A1 DE 2412307 A1 DE2412307 A1 DE 2412307A1 DE 19742412307 DE19742412307 DE 19742412307 DE 2412307 A DE2412307 A DE 2412307A DE 2412307 A1 DE2412307 A1 DE 2412307A1
Authority
DE
Germany
Prior art keywords
rotor
shaft piece
sheet metal
electrical machine
metal segments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19742412307
Other languages
German (de)
Inventor
Wolfgang Dr Ing Volkrodt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19742412307 priority Critical patent/DE2412307A1/en
Priority to NL7500318A priority patent/NL7500318A/en
Priority to GB375775A priority patent/GB1486489A/en
Priority to FR7505035A priority patent/FR2264418B3/fr
Priority to CH247675A priority patent/CH577763A5/xx
Priority to IT2098075A priority patent/IT1033466B/en
Priority to JP50029432A priority patent/JPS50122625A/ja
Publication of DE2412307A1 publication Critical patent/DE2412307A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/46—Motors having additional short-circuited winding for starting as an asynchronous motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

Permanenterregte elektrische MaschinePermanently excited electrical machine

In der Chemiefasertechnik werden immer höhere Drehzahlen verlangt, z.Z. etwa bis zu 20 000 U/min. Benötigt werden hierfür dauermagneterregte Synchronmaschinen mit asynchronem Anlauf, die den hohen mechanischen Beanspruchungen entsprechen, welche durch die genannten Drehzahlen bedingt sind.In chemical fiber technology, ever higher speeds are required, currently up to about 20,000 rpm. This requires permanent magnet synchronous machines with asynchronous start-up, which correspond to the high mechanical stresses caused by the stated speeds.

Die Erfindung geht von einer permanenterregten elektrischen Maschine mit im Läufer zwischen Blechsegmenten angeordneten Dauermagneten aus und löst die vorgenannte Aufgabe dadurch, daß der Läufer auf einem Wellenstück aus amagnetischem Material sitzt und dieses derart profiliert ist, daß - zur Sicherung gegen Fliehkraft - die die Pole bildenden Blechsegmente abstehende Profilteile des Wellenstückes hintergreifen, wobei die tangential magnetisieren Magnete radial zwischen den BIechsegmenten eingesetzt sind.The invention is based on a permanently excited electrical Machine with permanent magnets arranged in the rotor between sheet metal segments and thereby solves the above-mentioned task, that the runner sits on a shaft piece made of non-magnetic material and this is profiled in such a way that - to secure against centrifugal force - the metal segments forming the poles engage behind protruding profile parts of the shaft piece, with the tangentially magnetize magnets radially between the BIechsegmenten are used.

Die erfindungsgemäße Maschine ist anhand der Zeichnungen in zwei Ausführungsbeispielen erläutert. Dabei zeigen dieThe machine according to the invention is explained in two exemplary embodiments with reference to the drawings. They show

Figuren 1 und 2 einen Quer- und einen Längsschnitt durch den Läufer einer zweipoligen MaschineFigures 1 and 2 a transverse and a longitudinal section through the rotor of a two-pole machine

Figur 3 einen Längsschnitt durch einenkompletten Läufer mitFIG. 3 shows a longitudinal section through a complete runner with

eingesetzten Teilwellen undused partial shafts and

Figur 4 einen Querschnitt durch den Läufer einer vierpoligenFigure 4 shows a cross section through the rotor of a four-pole

Maschine.Machine.

In den Figuren 1 und 2 ist mit 1 ein Wellenstück aus amagnetischem Material bezeichnet, welches ein doppel-T-förmiges Profil aufweist. Dieses Wellenstück 1 trägt das geblechte Läuferpaket, welches aus zwei Blechsegment-Teilpaketen 2 undIn Figures 1 and 2, 1 is a shaft piece made of non-magnetic Material denotes which has a double-T-shaped profile. This shaft piece 1 carries the sheet metal Rotor package, which consists of two sheet metal segment part packages 2 and

3 besteht, die so ausgebildet sind, daß sie die Profilteile3 consists, which are designed so that they are the profile parts

4 und 5 des Wellenstückes 1 hintergreifen. Zwischen den die Pole bildenden Blechsegmentpaketen sind Dauermagnetblöcke 6 aus vorzugsweise ferritischem Material eingeklemmt, die den durch die Pfeile dargestellten magnetischen Fluß erzeugen.4 and 5 of the shaft piece 1 reach behind. Permanent magnet blocks 6 are located between the stacks of sheet metal segments forming the poles clamped from preferably ferritic material that the generate magnetic flux shown by the arrows.

509838/0520509838/0520

VPA 74/3063VPA 74/3063

Das Blechpaket ist in bekannter Weise mit Läuferstäben 7 und, unter Zwischenfügung von Läuferendblechen 8, mit Kurzschlußringen 9 versehen. Der Kurzschlußkäfig dient gleichzeitig zum mechanischen Zusammenhalt des Läuferpaketes in axialer Richtung. Gegen die Fliehkraftbeanspruchung sind die Läuferteilpakete dadurch gesichert, daß sie die Profilteile 4 und 5 des Wellenstückes 1 hintergreifen.The laminated core is in a known manner with rotor bars 7 and, provided with short-circuit rings 9 with the interposition of rotor end plates 8. The short-circuit cage serves at the same time as the mechanical one Cohesion of the rotor core in the axial direction. The rotor sub-packages are against the centrifugal force secured by the fact that they are the profile parts 4 and 5 of the shaft piece 1 reach behind.

Das Wellenstück 1 ist an seinen Enden hohl ausgebildet und es werden in diese hohlen Enden Teilwellen 10 und 11 eingepreßt. Damit beim Einpressen dieser Teilwellen die Enden des Wellenstückes 1 nicht nach außen ausweichen können, werden auf die Enden Druckhülsen 12 aufgedrückt.The shaft piece 1 is hollow at its ends and partial shafts 10 and 11 are pressed into these hollow ends. So that when these partial waves are pressed in, the ends of the shaft piece 1 cannot move outwards, are on the Ends of pressure sleeves 12 pressed on.

Aus fertigungstechnischen Gründen ist die Verwendung eines profilierten Wellenstückes in Verbindung mit zwei Teilwellen vorteilhaft. Es ist jedoch auch denkbar, eine durchgehende Welle zu verwenden, die lediglich im Bereich des Läuferpaketes entsprechend der Erfindung profiliert ist.For manufacturing reasons, the use of a profiled shaft piece in connection with two partial shafts advantageous. However, it is also conceivable to use a continuous shaft that is only in the area of the rotor core is profiled according to the invention.

Figur 4 zeigt ein Ausführungsbeispiel für einen vierpoligen Synchronmotor, wobei der Läufer entsprechend aus vier Blechsegmentpaketen mit zwischengeklemmten Dauermagneten besteht. Dae Wellenstück 13 ist hier nach Art eines 4-fach-T-Tragkörpers ausgebildet, so daß die Blechsegmente wiederum die abstehenden Profilteile 14 des Wellenstückes hintergreifen.FIG. 4 shows an exemplary embodiment for a four-pole synchronous motor, the rotor correspondingly being made up of four stacks of sheet metal segments with permanent magnets clamped between them. The shaft piece 13 is here in the manner of a 4-way T-support body formed so that the sheet metal segments in turn engage behind the protruding profile parts 14 of the shaft piece.

4 Figuren
4 Ansprüche4 figures
4 claims

509838/0520509838/0520

Claims (3)

VPA 74/3063 VPA 74/3063 Pa tentensprüchePatent claims . Permanenterregte elektrische Maschine mit im Läufer zwischen Blechsegmenten angeordneten Dauermagneten, dadurch gekennzeichnet, daß der Läufer auf einem Wellenstück (1,13) aus amagnetischem Material sitzt und dieses derart profiliert ist, daß - zur Sicherung gegen Fliehkraft - die die Pole bildenden Blechsegmente (2, 3) abstehende Profilteile (4, 5, 14) des Wellenstückes hintergreifen, wobei die tangential magnetisierten Magnete (6) radial zwischen den Blechsegmenten (2, 3) eingesetzt sind.. Permanently excited electrical machine with in the rotor between Permanent magnets arranged in sheet metal segments, characterized in that the rotor is mounted on a shaft piece (1,13) seated from non-magnetic material and this is profiled in such a way that - to secure against centrifugal force - the Pole-forming sheet metal segments (2, 3) engage behind protruding profile parts (4, 5, 14) of the shaft piece, the tangential magnetized magnets (6) are inserted radially between the sheet metal segments (2, 3). 2. Elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, daß das Läuferpaket mit einem Kurzschlußkäfig (7, 9) versehen is t.2. Electrical machine according to claim 1, characterized in that that the rotor package with a short-circuit cage (7, 9) is provided. 3. Elektrische Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Magnete (6) durch Klemmwirkung zwischen den Blechsegmentpaketen (2, 3) befestigt sind.3. Electrical machine according to claim 1 or 2, characterized in that that the magnets (6) are fastened by clamping between the sheet metal segment packages (2, 3). 4-· Elektrische Maschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in die hohlen Enden des den Läufer tragenden Wellenstückes (1) Teilwellen (10, 11) eingesetzt, insbesondere eingepreßt und auf die Enden des Wellenstückes Druckhülsen (12) aufgesetzt sind.4- · Electrical machine according to one of claims 1 to 3, characterized characterized in that partial shafts (10, 11) are inserted into the hollow ends of the shaft piece (1) carrying the rotor, in particular pressed in and placed on the ends of the shaft piece pressure sleeves (12). 5098 3 8/05205098 3 8/0520 LeerseiteBlank page
DE19742412307 1974-03-14 1974-03-14 PERMANENTLY EXCITED ELECTRIC MACHINE Pending DE2412307A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19742412307 DE2412307A1 (en) 1974-03-14 1974-03-14 PERMANENTLY EXCITED ELECTRIC MACHINE
NL7500318A NL7500318A (en) 1974-03-14 1975-01-10 SYNCHRONOUS MOTOR.
GB375775A GB1486489A (en) 1974-03-14 1975-01-28 Electrical machine rotors
FR7505035A FR2264418B3 (en) 1974-03-14 1975-02-18
CH247675A CH577763A5 (en) 1974-03-14 1975-02-27
IT2098075A IT1033466B (en) 1974-03-14 1975-03-06 ELECTRIC MACHINE WITH PERMANENT MAGNET EXCITATION
JP50029432A JPS50122625A (en) 1974-03-14 1975-03-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742412307 DE2412307A1 (en) 1974-03-14 1974-03-14 PERMANENTLY EXCITED ELECTRIC MACHINE

Publications (1)

Publication Number Publication Date
DE2412307A1 true DE2412307A1 (en) 1975-09-18

Family

ID=5910091

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742412307 Pending DE2412307A1 (en) 1974-03-14 1974-03-14 PERMANENTLY EXCITED ELECTRIC MACHINE

Country Status (7)

Country Link
JP (1) JPS50122625A (en)
CH (1) CH577763A5 (en)
DE (1) DE2412307A1 (en)
FR (1) FR2264418B3 (en)
GB (1) GB1486489A (en)
IT (1) IT1033466B (en)
NL (1) NL7500318A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439704A (en) * 1979-12-12 1984-03-27 Siemens Aktiengesellschaft Permanent magnet excited rotor for a synchronous machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191256A (en) * 1989-12-15 1993-03-02 American Motion Systems Interior magnet rotary machine
DE4106131C2 (en) * 1991-02-27 1994-07-28 Licentia Gmbh Runner for small electric motors
DE4213375A1 (en) * 1992-04-23 1993-10-28 Swf Auto Electric Gmbh Permanent-magnet internal rotor esp. for brushless motor - has two magnets with rectangular cross-section bonded to nonmagnetic shaft and held between massive shells completing cylindrical structure
FR2935205B1 (en) 2008-08-20 2010-10-08 Michelin Soc Tech INTERIOR ROTOR FOR ROTATING ELECTRIC MACHINE AND METHOD FOR ASSEMBLING THE SAME
FR2935204B1 (en) * 2008-08-20 2016-01-01 Michelin Soc Tech INDOOR ROTOR WITH GROOVE SHAFT FOR ROTATING ELECTRICAL MACHINE
EP2715916A4 (en) * 2011-05-26 2016-03-23 Electric Line Uppland Ab A rotary electric machine, a rotor for a such and a vehicle/craft with such a machine
JP6018815B2 (en) * 2012-06-22 2016-11-02 株式会社ミツバ Rotor and electric motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0411159U (en) * 1990-05-18 1992-01-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439704A (en) * 1979-12-12 1984-03-27 Siemens Aktiengesellschaft Permanent magnet excited rotor for a synchronous machine

Also Published As

Publication number Publication date
FR2264418B3 (en) 1977-10-28
CH577763A5 (en) 1976-07-15
GB1486489A (en) 1977-09-21
IT1033466B (en) 1979-07-10
NL7500318A (en) 1975-09-16
JPS50122625A (en) 1975-09-26
FR2264418A1 (en) 1975-10-10

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