Global Patent Index - EP 1008224 A1

EP 1008224 A1 2000-06-14 - ELECTRIC MACHINE WITH A ROTOR CONSTRUCTED OF PERMANENT MAGNETS AND MAGNETIC FLUX GUIDES

Title (en)

ELECTRIC MACHINE WITH A ROTOR CONSTRUCTED OF PERMANENT MAGNETS AND MAGNETIC FLUX GUIDES

Title (de)

ELEKTRISCHE MASCHINE, DEREN ROTOR AUS DAUERMAGNETEN UND MAGNETFLUSS-LEITSTÜCKEN AUFGEBAUT IST

Title (fr)

MACHINE ELECTRIQUE A ROTOR CONSTITUE D'AIMANTS PERMANENTS ET D'ELEMENTS CONDUCTEURS DE FLUX MAGNETIQUE

Publication

EP 1008224 A1 (DE)

Application

EP 98946432 A

Priority

  • DE 19737391 A
  • EP 9805417 W

Abstract (en)

[origin: DE19737391A1] The invention relates to an electric machine with a stator and a rotor (2) which are separated by an air gap (12). According to the invention, (a) the rotor (2) is constructed with magnetized permanent magnets (8), said magnets being arranged in an essentially circumferential manner, and a magnetic flux guide arrangement(10) consisting of at least one magnetic flux guide (10a, 10b). Each arrangement is situated between two adjacent permanent magnets (8). (b) The invention also provides that the permanent magnets (8), when looking at overall shape, each have a circumferential width that increases from the edge of the air gap at the upper end to the lower end of said magnets. (c) Additionally, the invention provides that the guide arrangements (10) between two adjacent permanent magnets (8), when looking at overall shape, each have a circumferential width that decreases from the edge of the air gap at the upper end to the lower end of said arrangements. According to the invention, the guides (10a, 10b) are arranged so that the lower end of said guides spread away from one another in a circumferential direction. The guides have at least one shoulder (20) with which they are supported on an adjacent permanent magnet (8) to prevent dislocation in the direction of the air gap (12).

IPC 1-7 (main, further and additional classification)

H02K 1/27

IPC 8 full level (invention and additional information)

H02K 1/27 (2006.01)

CPC (invention and additional information)

H02K 1/2773 (2013.01); H02K 1/2786 (2013.01); H02K 7/1838 (2013.01)

Citation (search report)

See references of WO 9910962A1

Designated contracting state (EPC)

CH DE FR GB IT LI SE

EPO simple patent family

DE 19737391 A1 19990304; AU 9347198 A 19990316; CA 2301535 A1 19990304; CA 2301535 C 20071023; EP 1008224 A1 20000614; US 6384504 B1 20020507; WO 9910962 A1 19990304; ZA 9807728 B 19990301

INPADOC legal status


2014-08-06 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20140301

2006-11-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20061024

2000-06-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000218

2000-06-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE FR GB IT LI SE