| 摘要 |
The invention concerns a direct current electric motor with a reference axis Z-Z and comprising a first body (A) bearing a first polar part (11), a second body (B) bearing a second polar part (12), said first body and second body having a degree of relative movement transverse to the reference axis, said first polar part and said second polar part being separated by a first air gap (13) transverse to the reference axis and extending along a relative movement line (100) arranged transverse to the reference axis, and by at least a second air gap (16, 17) distinct from the first but parallel thereto. It also comprises a permanent magnetisation bar (14) integral with the first body and generating magnetic flux lines circulating in the first and second polar parts and passing through said first and second air gaps, said permanent magnetisation bar having, relative to the reference axis, a constant magnetising direction over its whole length, electrically conductive strands (15) integral with the second body, extending in said first air gap parallel to the reference axis and connected to an electric source such that the currents circulating therein have, at all times, a common direction parallel to said reference axis.
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