发明名称 |
Stepping motor for electric typewriter - uses non-magnetic discontinuities to achieve 25 percentage reduction of stray flux |
摘要 |
<p>The step-by-step motor has a multiple stator. Each stator pole position has a number of magnetic elements placed on sides opposite to an airgap. A non-magnetic element is inserted in the spaces between the ends of magnetic elements on each of the sides opposite to the airgap. Each stator pole (12) has a winding(20). Movable units(22) are placed in the airgap. The movable units includes a number of passive magnetic elements separated by a discontinuous non-magnetic material. The movable units and its elements have shapes such that all the movable elements are always contained within the airgap. A magnetic force acts of the movable magnetic elements from both sides of the airgap. The movable magnetic units have also non-magnetic material discontinuities designed to eliminate longitudinal stray flux.</p> |
申请公布号 |
NL7808466(A) |
申请公布日期 |
1980.02.19 |
申请号 |
NL19780008466 |
申请日期 |
1978.08.15 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY TE LINDEN, NEW JERSEY, VER. ST. V. AM. |
发明人 |
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分类号 |
H02K37/00;B41J29/38;H02K1/34;H02K37/02;H02K37/08;H02K41/02;H02K41/03;(IPC1-7):02K37/00;02K41/02;41J23/00 |
主分类号 |
H02K37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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