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WO2002041471A1 - Rotor pour une machine electrique - Google Patents

Rotor pour une machine electrique Download PDF

Info

Publication number
WO2002041471A1
WO2002041471A1 PCT/DE2001/004271 DE0104271W WO0241471A1 WO 2002041471 A1 WO2002041471 A1 WO 2002041471A1 DE 0104271 W DE0104271 W DE 0104271W WO 0241471 A1 WO0241471 A1 WO 0241471A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
rotor according
modules
carrier body
magnet
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.)
Ceased
Application number
PCT/DE2001/004271
Other languages
German (de)
English (en)
Inventor
Stefan Beyer
Markus Heidrich
Axel Jacob
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AU2002218983A priority Critical patent/AU2002218983A1/en
Publication of WO2002041471A1 publication Critical patent/WO2002041471A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H02K1/278—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
    • 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

  • a rotor for electrical machines which has a carrier body on which a plurality of magnets are arranged.
  • Such a structure of the rotor in connection with a grooved stator leads to a cogging torque and, depending on the size, e.g. in the area of a drive-by-wire system, cause interference.
  • the rotor according to the invention with the characterizing features of claim 1 has the advantage that the manufacture and / or the in a simple manner
  • rotor is made up of modules of one type, rotors of different axial lengths can be assembled. For the production of various
  • Rotors are only required modules of one type and no longer a number of different rotors.
  • the modules are rotated relative to one another by a certain angle of rotation in the circumferential direction.
  • the rotation angle of the rotation of the modules relative to one another depends on a number of poles, a tooth shape, a width of the magnets, an air gap length, a useful tooth geometry of the stator, etc.
  • Electrical sheet is advantageously used for a carrier body of the rotor.
  • FIG. 1 shows a rotor according to the invention
  • FIG. 2a shows another rotor according to the invention
  • Figure 2b shows a partial section of a rotor according to the invention according to Figure 2a in a radial cross section.
  • FIG. 1 shows a rotor 1 according to the invention, which among other things consists of a rotor shaft 5, a first module 7, a second module 8 and a third module 9. There may also be one module fewer or even more modules.
  • the modules 7, 8, 9 are close together here, but can also be spaced apart.
  • Each module 7, 8, 9 consists of a carrier body 12 and at least one magnet 15, for example a permanent magnet, which is arranged on a peripheral surface of the carrier body 12. Due to the modular design, different rotors 1 can be assembled with only one component, a module 7, 8, 9.
  • the carrier body 12 is firmly connected to the rotor shaft 5 and is preferably made of electrical sheet.
  • a rotor 1 can be used for a rotating electrical machine, i.e. an electric motor or an electric generator can be used.
  • Such an electrical machine also has a stator 18 with at least one stator tooth 22, on which at least one Coil 26 (Fig. 2b) is arranged.
  • the axial length of the stator tooth 22 corresponds approximately to the axial length of the modules 7, 8, 9 present.
  • FIG. 2a shows a further exemplary embodiment of a rotor 1 according to the invention.
  • the rotor 1 consists of several modules 7, 8, 9, which, however, are rotated relative to one another by a certain angle of rotation (FIG. 2b).
  • an intermediate space 24 which, for example, has no material or is filled with poorly or non-magnetically conductive material, so that a magnetic flux loss through the material surrounding the magnets 15 is minimized.
  • the magnets 15 are glued to the carrier body 12 or fastened by fastening means such as are known from the application DE 100 09 151.2-12. Another possibility for fixing the magnets 15 is by the use of a tube made of a magnetically non-conductive material which is arranged, for example by 'shrink fit or by means of a bayonet lock on the magnet 15 and this fixed on the carrier body 12th
  • Figure 2b shows a partial section of a rotor 1 according to the invention according to Figure 2a in radial cross section.
  • the rotor 1 has, for example, six magnets 15, which form six rotor poles 20, and the stator 18 has, for example, nine
  • Stator teeth 22 Any other combination of a number of rotor poles 20 and stator teeth 22 is possible.
  • the individual modules 7, 8, 9 are each shifted by an angle ⁇ in the circumferential direction.
  • the stator tooth 22 covers, for example, only the magnet 15 of a module 7 with its surface opposite the magnet 15.
  • the magnets 15 of the other modules 8, 9 are only partially covered by the stator tooth 22.
  • the area of the stator tooth 22, i.a. given by a width of the stator tooth 22, which lies opposite the magnet 15, can also be smaller or larger than an area or width of the magnet 15.

Landscapes

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

Abstract

Dans l'état actuel de la technique, un rotor doit être fabriqué individuellement pour chaque machine électrique. Le rotor (1) selon la présente invention est composé de modules (7, 8, 9) de structure identique, des modules de structure identique permettant de fabriquer différents rotors (1).
PCT/DE2001/004271 2000-11-16 2001-11-16 Rotor pour une machine electrique Ceased WO2002041471A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002218983A AU2002218983A1 (en) 2000-11-16 2001-11-16 Rotor for an electric machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056875A DE10056875A1 (de) 2000-11-16 2000-11-16 Rotor für eine elektrische Maschine
DE10056875.0 2000-11-16

Publications (1)

Publication Number Publication Date
WO2002041471A1 true WO2002041471A1 (fr) 2002-05-23

Family

ID=7663556

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/004271 Ceased WO2002041471A1 (fr) 2000-11-16 2001-11-16 Rotor pour une machine electrique

Country Status (3)

Country Link
AU (1) AU2002218983A1 (fr)
DE (1) DE10056875A1 (fr)
WO (1) WO2002041471A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1501172A3 (fr) * 2003-07-24 2005-11-16 A.O. Smith Corporation Machine sans balais à aimants permanents avec un rotor magnétisé par sections axiales d'obliquité différente, et procédé pour sa fabrication
US7067948B2 (en) 2002-10-18 2006-06-27 Mitsubishi Denki Kabushiki Kaisha Permanent-magnet rotating machine
US7247964B2 (en) 2003-07-24 2007-07-24 A.O. Smith Corporation Electrical machine with magnetized rotor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3402042A1 (fr) 2017-05-11 2018-11-14 Siemens Aktiengesellschaft Fixation d'un fil de bandage destiné à fixer et à positionner des aimants magnétiques

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642502A (en) * 1986-04-24 1987-02-10 General Motors Corporation Dynamoelectric machine with permanent magnet and magnet mounting surface arrangement
US5481147A (en) * 1992-02-20 1996-01-02 Dana Corporation Synchronous inductor electric motor
US5739612A (en) * 1996-09-03 1998-04-14 Davenport; Norban Earl Auxiliary power source
US5760520A (en) * 1995-12-27 1998-06-02 Aisin Aw Co., Ltd. Motor
US5973436A (en) * 1996-08-08 1999-10-26 Rolls-Royce Power Engineering Plc Electrical machine
US6002193A (en) * 1995-12-21 1999-12-14 Jeumont Industrie Basic module for a discoidal electric machine, and corresponding electric machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642502A (en) * 1986-04-24 1987-02-10 General Motors Corporation Dynamoelectric machine with permanent magnet and magnet mounting surface arrangement
US5481147A (en) * 1992-02-20 1996-01-02 Dana Corporation Synchronous inductor electric motor
US6002193A (en) * 1995-12-21 1999-12-14 Jeumont Industrie Basic module for a discoidal electric machine, and corresponding electric machine
US5760520A (en) * 1995-12-27 1998-06-02 Aisin Aw Co., Ltd. Motor
US5973436A (en) * 1996-08-08 1999-10-26 Rolls-Royce Power Engineering Plc Electrical machine
US5739612A (en) * 1996-09-03 1998-04-14 Davenport; Norban Earl Auxiliary power source

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7067948B2 (en) 2002-10-18 2006-06-27 Mitsubishi Denki Kabushiki Kaisha Permanent-magnet rotating machine
US7196445B2 (en) 2002-10-18 2007-03-27 Mitsubishi Denki Kabushiki Kaisha Permanent-magnet rotating machine
DE10348401B4 (de) * 2002-10-18 2020-11-05 Mitsubishi Denki K.K. Umlaufende Maschine mit Dauermagneten
EP1501172A3 (fr) * 2003-07-24 2005-11-16 A.O. Smith Corporation Machine sans balais à aimants permanents avec un rotor magnétisé par sections axiales d'obliquité différente, et procédé pour sa fabrication
US7143503B2 (en) 2003-07-24 2006-12-05 A. O. Smith Corporation Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the same
US7247964B2 (en) 2003-07-24 2007-07-24 A.O. Smith Corporation Electrical machine with magnetized rotor
US7307366B2 (en) 2003-07-24 2007-12-11 A.O. Smith Corporation Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the same

Also Published As

Publication number Publication date
AU2002218983A1 (en) 2002-05-27
DE10056875A1 (de) 2002-06-06

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