| 摘要 |
A clutch for an automotive air conditioning compressor includes a pulley forming a hollow space in which an electromagnetic housing is disposed. The electromagnetic housing comprises a first housing portion and a second separately formed housing portion. The first housing portion includes a first annular cylindrical region and a first annular region extending from the first annular cylindrical region. The second housing portion includes a second annular cylindrical region and a second annular region extending from the second annular cylindrical region. The first and second annular regions are operatively coupled together and their coupled surfaces define a rear side of the electromagnetic housing. Because most of the flux flowing through the electromagnetic housing flows through the rear side thereof, by forming the electromagnetic housing from first and second housings, a thicker magnetic flux flow path is formed, thereby improving the magnetic attraction and torque transfer from the pulley to the armature plate.
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