Patent ID: 11948738
Assignee: HUSCO AUTOMOTIVE HOLDINGS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC H

Claim 7:
8. A solenoid, comprising:
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 axially between the pole piece and the end plate;
an armature configured to move between a first position and a second position in response to a current applied to the wire coil;
a pin coupled to the armature, wherein the pole piece or the end plate includes a bearing protrusion that extends axially away from an exterior surface of the end plate and includes a bearing surface that is configured to slidably receive the pin; and
an armature tube that movably receives the armature,
wherein the pole piece includes a thin-walled portion that extends through the permanent magnet and is dimensioned so that magnetic flux generated by the permanent magnet saturates in the thin-walled portion.