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Electric motor

An electromagnetic and armature technology, applied in the field of electromagnetic machines, can solve problems such as affecting efficiency, and achieve the effect of increasing service life and increasing energy efficiency

Active Publication Date: 2020-10-13
AMS R & D
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Document EP1548917 also discloses an electromagnetic machine, but its stator armature has parasitic movements which are considered undesirable for some applications, since they affect its efficiency

Method used

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Embodiment Construction

[0041] As previously stated, the invention essentially concerns an electromagnetic machine M1 comprising a stator St1 , a mobile armature Am1 movable relative to the stator and mechanical connection means R0 connecting the mobile armature to the stator St1 .

[0042] The connecting means comprise a plurality of leaf springs R1 , R2 , R3 , R4 designed to suspend the mobile armature Am1 from the stator St1 .

[0043] Each leaf spring R1 , R2 , R3 , R4 includes at least one elastic leaf Lm capable of bending deformation.

[0044] Stator St1 comprises at least a first electrical coil A1 , in this case two coils A1 and A2 .

[0045] As can be seen for example from FIG. 3 , the stator St1 also comprises at least a first magnetic core Nx1 forming at least one open loop between the first terminal Ba and the second terminal Bb of the first loop B B, to define the air gap Etf between these terminals Ba, Bb.

[0046] The mobile armature Am1 is suspended via connection means R0 such tha...

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Abstract

The invention relates to an electromagnetic machine (M1) comprising a stator, a movable armature and a device for mechanically connecting the movable armature to the stator, the connecting device comprising a plurality of leaf springs, and the stator comprising at least one first electrical coil and at least one first magnetic core forming at least one open loop between first and second terminal ends of said first loop in order to define an air gap between said terminal ends. The plurality of leaf springs extends on a single side of an air gap plane (P1) perpendicular to a first loop plane (P2), the plurality of leaf springs being arranged so as to authorize the translation of the movable armature in relation to said stator in a direction that is perpendicular to the loop plane (P2) and toprohibit any movement of said movable armature in any direction within said loop plane (P2).

Description

technical field [0001] The invention relates to the field of electromagnetic machines such as electric motors or generators. Background technique [0002] For example, from document US3746937 (A) is known an electromagnetic machine with a stator provided with coils and an armature movable relative to the stator, which armature carries permanent magnets and is guided by guide rails and helical springs Moving relative to the stator, the helical spring is arranged as a return force forcing the armature back towards a stable rest position relative to the stator. [0003] The efficiency of this machine is minimized by the friction of the guide rails. Document EP1548917 also discloses an electromagnetic machine, but whose stator armature has parasitic movements which are considered undesirable for certain applications, since they affect its efficiency. The electromagnetic machine of patent document US6405599 offers the advantage of reducing the parasitic movements of the moving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K35/02H02K33/16
CPCH02K33/16H02K35/02F04B45/047H02K33/04H02K33/02
Inventor G·德莱斯J-B·德勒韦H·吉列明
Owner AMS R & D