发明名称 |
Active element for an electromagnetic machines, a method of fabricating such an active element, and an electromagnetic machine including such an active element |
摘要 |
The invention provides an active element for an electromagnetic machine, the element comprising an alternating succession in a main direction of portions presenting a first magnetic property and of portions presenting a second magnetic property, wherein the element includes a non-magnetic covering that is thin relative to a thickness of the portions and that extends to cover a substantial fraction of an outside surface of the active element, the covering being secured to at least some of the portions and presenting sufficient strength to form a member for mechanically transmitting the magnetic forces to which the portions are subjected. |
申请公布号 |
US8981604(B2) |
申请公布日期 |
2015.03.17 |
申请号 |
US200712373437 |
申请日期 |
2007.06.28 |
申请人 |
Messier-Bugatti-Dowty |
发明人 |
Ziegler Nicolas;Matt Daniel |
分类号 |
H02K25/00;H02K23/04;H02K41/03;H02K15/03;H02K1/27;H02K7/08 |
主分类号 |
H02K25/00 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A method of fabricating an active element comprising an alternating succession in a main direction (X) of portions presenting a first magnetic property and of portions presenting a second magnetic property, the element comprising a non-magnetic covering that is thin relative to a thickness of the portions and that extends to cover a substantial fraction of an outside surface of the active element, the covering being secured to at least some of the portions and presenting sufficient strength to form a member for mechanically transmitting the magnetic forces to which the portions are subjected, wherein the portions are bars so that the active element is substantially in the form of a plate presenting two opposite large faces formed by the adjacent side faces of the bars, the covering extending to cover a substantial fraction of the large faces, the method comprising the steps of:
cutting parallel windows out in a sheet presenting a first magnetic property; fitting in the windows portions that present a second magnetic property; applying a covering to one of the two faces of the sheet so as to cover the portions substantially; and cutting away the side margins of the sheet so that the sheet lying between two windows itself forms portions of the active element. |
地址 |
Velizy Villacoublay FR |