公开(公告)号：WO2022047336A1

公开(公告)日：2022-03-03

申请号：PCT/US2021/048291

申请日：2021-08-30

Applicant: HUSCO AUTOMOTIVE HOLDINGS LLC

Inventor： WYNKOOP, Trevor ,  PELLMANN, Mathew

IPC: F16K31/06 ,  F16K31/08 ,  F16K31/10 ,  H01F7/06 ,  H01F7/124 ,  H01F7/16

Abstract: A bi-stable solenoid includes a housing, a wire coil arranged within the housing, a first pole piece, a second pole piece, an armature slidably arranged within the housing, and a permanent magnet arranged within the armature between a first armature portion and a second armature portion. The first armature portion and the second armature portion are fabricated from a magnetically permeable material. Selective energization of the wire coil generates a wire coil flux path and is configured to move the armature between the first stable position and the second stable position. The first stable position is established by magnetic flux of the permanent magnet shorting through the first pole piece, and the second stable position is established by the magnetic flux of the permanent magnet traversing the wire coil flux path.