WO2000031860A1 - Corps en tole pour une machine electrique rotative - Google Patents

Corps en tole pour une machine electrique rotative Download PDF

Info

Publication number
WO2000031860A1
WO2000031860A1 PCT/DE1999/003684 DE9903684W WO0031860A1 WO 2000031860 A1 WO2000031860 A1 WO 2000031860A1 DE 9903684 W DE9903684 W DE 9903684W WO 0031860 A1 WO0031860 A1 WO 0031860A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnets
blechköφer
groove
grooves
pitch
Prior art date
Application number
PCT/DE1999/003684
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Blocher
Original Assignee
Blocher Motor Gmbh
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
Priority claimed from DE1998153168 external-priority patent/DE19853168A1/de
Priority claimed from DE29919957U external-priority patent/DE29919957U1/de
Application filed by Blocher Motor Gmbh filed Critical Blocher Motor Gmbh
Priority to AU18561/00A priority Critical patent/AU1856100A/en
Publication of WO2000031860A1 publication Critical patent/WO2000031860A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • 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
    • H02K21/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Definitions

  • the invention relates to sheet metal bodies for a rotating electrical machine, comprising a stator body, a rotor shaft and a laminated rotor body with grooves arranged
  • Windings and permanent magnet excitation It is particularly suitable for elevator drives.
  • Permanent magnet in the direction of rotation of the armature iron core is arranged so that the toothed torque (shaking torque) is to be canceled.
  • a rotor for permanent magnet excited electrical machines in which permanent magnets are arranged on the circumference on a partial section, which in turn are separated by fillers made of non-magnetic material.
  • the permanent magnets are applied axially straight.
  • the invention has for its object to provide sheet metal body for rotating electrical machines, consisting of stator body, rotor shaft and laminated rotor body with coils arranged in slots and permanent magnet excitation, which largely minimize harmful shaking moments and noise emissions during operation.
  • the object is achieved by the characterizing features of the main claim.
  • the magnetic poles are arranged in magnetic grooves 3, they consist of at least two axially arranged permanent magnets 1, which are offset with respect to one another in the magnetic groove 3 and are preferably fixed with an intermediate piece 2. If the magnetic poles are arranged on the circumference of the rotor or stator body, then they are
  • Permanent magnets 1 distributed in a radial or tangential arrangement so that the arrangement of the permanent magnets 1 on the circumference is asymmetrical by reducing the pole pitch. Due to the number of uses according to the invention and the installation of both longed and non-longed windings, a type of extremely asymmetrical broken-hole winding, in the slots, the pulsations are greatly reduced, ie the vibrations occurring at the point of the decrease in force are reduced. Furthermore, the arrangements of the magnetic poles according to the invention bring about maximum asymmetry of the magnetic circuit. This further reduces both the vibrating torque and the noise.
  • the sheet metal body is preferably designed such that the number of uses is a prime number.
  • the permanent magnets 1 are arranged in the magnetic groove 3, it is advantageous to arrange the permanent magnets 1 obliquely axially offset. If, on the other hand, the permanent magnets 1 are arranged on the circumference, the arrangements bring about advantageous effects in an axial or oblique manner one after the other.
  • the invention is explained in more detail below using several exemplary embodiments.
  • the drawing shows an offset arrangement of the permanent magnets with spacers in a magnetic groove.
  • a coil side of a coil is divided into two adjacent grooves. This means that these grooves are only half filled.
  • the magnetic pole structure consists of two permanent magnets 1 arranged axially one behind the other, which are mutually in a magnetic groove 3 are arranged offset and fixed with an intermediate piece 2.
  • the sheet metal body has an uneven groove pitch, ie the spacing of the individual grooves from one another is irregular and is determined at random.
  • the tooth widths therefore differ from tooth to tooth, with a maximum of 2 times the tooth width
  • the radial or tangential arrangement of the permanent magnets 1 means that the arrangement of the permanent magnets 1 on the circumference is asymmetrical by reducing the pole pitch.
  • the permanent magnets 1 are arranged obliquely axially offset in the magnetic groove 3.
  • the intermediate piece 2 has a wedge-shaped shape.
  • the sheet metal body has 73 grooves, one of which remains unwrapped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Windings For Motors And Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

La présente invention a pour objet la création de corps en tôle pour machines électriques rotatives, qui sont constitués d'un corps de stator, d'un arbre de rotor et d'un corps de rotor en tôle et sont pourvus d'enroulements placés dans des rainures et d'un dispositif d'excitation à aimants permanents, et qui réduisent largement les vibrations nuisibles et l'émission de bruit pendant le fonctionnement. Le corps en tôle possède un nombre de rainures obtenue à l'aide de la formule N = 2p•q•±1. Un côté d'une bobine est ainsi réparti sur deux rainures adjacentes. Ces rainures ne sont donc remplies qu'à moitié. La disposition des pôles magnétiques est telle que de préférence deux aimants permanents (1) au moins, placés axialement l'un derrière l'autre, sont placés l'un contre l'autre de manière décalée dans une rainure (3) et sont fixés à l'aide d'une pièce intermédiaire (2). Dans d'autres modes de réalisation, dans une configuration radiale ou tangentielle, les aimants permanents (1) sont répartis de manière telle que la disposition desdits aimants (1) est asymétrique sur la circonférence par réduction du pas polaire.
PCT/DE1999/003684 1998-11-19 1999-11-18 Corps en tole pour une machine electrique rotative WO2000031860A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18561/00A AU1856100A (en) 1998-11-19 1999-11-18 Sheet steel body for an electrical rotating machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1998153168 DE19853168A1 (de) 1998-11-19 1998-11-19 Blechkörper für eine drehende elektrische Maschine
DE19853168.0 1998-11-19
DE29919957.6 1999-11-14
DE29919957U DE29919957U1 (de) 1999-11-14 1999-11-14 Blechkörper für eine drehende elektrische Maschine

Publications (1)

Publication Number Publication Date
WO2000031860A1 true WO2000031860A1 (fr) 2000-06-02

Family

ID=26050227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003684 WO2000031860A1 (fr) 1998-11-19 1999-11-18 Corps en tole pour une machine electrique rotative

Country Status (3)

Country Link
AR (1) AR021340A1 (fr)
AU (1) AU1856100A (fr)
WO (1) WO2000031860A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291219A2 (fr) * 1987-05-15 1988-11-17 Synektron Corporation Machine triphasée compacte avec rotor à aimant permanent, à basse vibration et à grande performance
DE4025754A1 (de) * 1989-08-14 1991-02-21 Hitachi Ltd Permanentmagnetmotor
JPH05336719A (ja) * 1992-06-01 1993-12-17 Asmo Co Ltd 直流電動機
DE19501750A1 (de) * 1995-01-21 1996-07-25 Licentia Gmbh Permanentmagnetmotor, insbesondere als Antriebsmotor für Servolenkeinrichtungen in Kraftfahrzeugen
JPH10126982A (ja) * 1996-10-24 1998-05-15 Matsushita Electric Ind Co Ltd 永久磁石モータ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291219A2 (fr) * 1987-05-15 1988-11-17 Synektron Corporation Machine triphasée compacte avec rotor à aimant permanent, à basse vibration et à grande performance
DE4025754A1 (de) * 1989-08-14 1991-02-21 Hitachi Ltd Permanentmagnetmotor
JPH05336719A (ja) * 1992-06-01 1993-12-17 Asmo Co Ltd 直流電動機
DE19501750A1 (de) * 1995-01-21 1996-07-25 Licentia Gmbh Permanentmagnetmotor, insbesondere als Antriebsmotor für Servolenkeinrichtungen in Kraftfahrzeugen
JPH10126982A (ja) * 1996-10-24 1998-05-15 Matsushita Electric Ind Co Ltd 永久磁石モータ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 167 (E - 1528) 22 March 1994 (1994-03-22) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10 31 August 1998 (1998-08-31) *

Also Published As

Publication number Publication date
AR021340A1 (es) 2002-07-17
AU1856100A (en) 2000-06-13

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