Magnetic flux collector for a torque detection device
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United States of America Patent
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Oct 20, 2015
Grant Date -
Nov 8, 2012
app pub date -
Nov 2, 2010
filing date -
Nov 4, 2009
priority date (Note) -
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Abstract
The invention relates to a magnetic flux collector for a torque detection device. The collector includes two coaxial magnetic cylinder heads (6, 7), having respectively interlocked teeth (17, 28), overmolded by means of a plastic material. The two cylinder heads (6, 7) have, at the periphery thereof, notches (18, 19, 23) provided such as to engage with matching grooves (32, 33) which comprise a cylindrical cavity (31) of a mold (30) for overmolding the cylinder heads with the plastic material. The two cylinder heads (6, 7) are therefore positioned in a very accurate manner relative to one another, before injecting the overmolding plastic material. The invention can be used for the production of torque sensors used in the power-steering systems of automobiles.
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