Invention Grant
- Patent Title: Systems and methods for a solenoid having a permanent magnet
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Application No.: US17081374Application Date: 2020-10-27
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Publication No.: US11948738B2Publication Date: 2024-04-02
- Inventor: Joseph Reiter , Matt Pellmann
- Applicant: HUSCO Automotive Holdings LLC
- Applicant Address: US WI Waukesha
- Assignee: HUSCO Automotive Holdings LLC
- Current Assignee: HUSCO Automotive Holdings LLC
- Current Assignee Address: US WI Waukesha
- Agency: Quarles & Brady LLP
- Main IPC: H01F7/16
- IPC: H01F7/16 ; H01F7/08 ; H01F7/122

Abstract:
A solenoid is provided. The solenoid includes a housing, a pole piece, an end plate formed with or coupled to the housing, a wire coil arranged within the housing, a permanent magnet arranged between the pole piece and the end plate, an armature configured to selectively move between a first position and a second position in response to a current applied to the wire coil, and a spring configured to bias the armature. When the wire coil is de-energized, the armature is maintained in at least one of the first position and the second position. The first position is configured to be maintained by the spring and the second position is configured to be maintained by magnetic attraction between the armature and the permanent magnet through engagement between the armature and the pole piece.
Public/Granted literature
- US20210125765A1 SYSTEMS AND METHODS FOR A SOLENOID HAVING A PERMANENT MAGNET Public/Granted day:2021-04-29
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