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1. WO1997029534 - LINEAR ELECTROMAGNETIC ACTUATOR WITH TWO ROTORS VIBRATING IN ANTIPHASE

Publication Number WO/1997/029534
Publication Date 14.08.1997
International Application No. PCT/FR1997/000078
International Filing Date 16.01.1997
Chapter 2 Demand Filed 06.08.1997
IPC
H02K 33/16 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
33Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
16with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
CPC
H02K 33/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
33Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
16with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Applicants
  • MOVING MAGNET TECHNOLOGIES (S.A.) [FR]/[FR] (AllExceptUS)
  • OUDET, Claude [FR]/[FR] (UsOnly)
  • GANDEL, Pierre [FR]/[FR] (UsOnly)
Inventors
  • OUDET, Claude
  • GANDEL, Pierre
Agents
  • BREESE-MAJEROWICZ
Priority Data
96/0151507.02.1996FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) LINEAR ELECTROMAGNETIC ACTUATOR WITH TWO ROTORS VIBRATING IN ANTIPHASE
(FR) ACTIONNEUR ELECTROMAGNETIQUE LINEAIRE A DEUX ROTORS VIBRANT EN OPPOSITION DE PHASE
Abstract
(EN)
A linear electromagnetic actuator comprising a stator energised by at least one electrical coil (4, 29), two oppositely moving parts (2, 3 or 22, 23) and at least one thin permanent magnet (1 or 20, 21) magnetised through its thickness. The stator has two cylindrical stator poles (5, 8 or 24, 25) between which the cylindrical coil (4, 29) is fitted, and the moving parts (2, 3 or 22, 23) are ferromagnetic parts arranged in such a way that they define air gaps having a variable cross-section together with the cylindrical stator poles (5, 8 or 24, 25). The sum of the cross-sections of the two air gaps formed at a front end of the actuator is constant.
(FR)
La présente invention concerne un actionneur électromagnétique linéaire comportant un stator excité par au moins une bobine électrique (4, 29), deux pièces mobiles (2, 3 ou 22, 23) en opposition et au moins un aimant mince permanent (1 ou 20, 21) aimanté dans le sens de l'épaisseur, caractérisé en ce que le stator présente deux pôles statoriques cylindriques (5, 8 ou 24, 25) entre lesquels est logée la bobine cylindrique (4, 29), et en ce que les pièces mobiles (2, 3 ou 22, 23) sont des pièces ferromagnétiques disposées d'une manière propre à définir avec les pôles statoriques cylindriques (5, 8 ou 24, 25) des entrefers de section variable, la somme des sections de deux entrefers formés à une extrémité frontale de l'actionneur étant constante.
Also published as
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