US 2020/0051723 A1 · SOLENOID INCLUDING ARMATURE ANTI-ROTATION STRUCTURE

Abstract

A solenoid actuator includes a housing assembly, a bobbin assembly, a coil, an armature, and an anti-rotation structure. The bobbin assembly is disposed at least partially within the housing assembly and includes a return pole and a yoke. The yoke has an inner surface that defines an armature cavity. The coil is disposed within the housing assembly and is wound around at least a portion of the bobbin assembly. The armature is disposed within the armature cavity and is axially movable relative to the yoke. The anti-rotation structure is disposed within the housing assembly and engages at least a portion of the armature. The armature and the anti-rotation structure each have at least one feature formed thereon that mate with each other and thereby prevent rotation of the armature.

Claims20

Dependent claims

A solenoid actuator, comprising:

a housing assembly;
a bobbin assembly disposed at least partially within the housing assembly, the bobbin assembly including a return pole and a yoke, the yoke having an inner surface that defines an armature cavity;
a coil disposed within the housing assembly and wound around at least a portion of the bobbin assembly;
an armature disposed within the armature cavity and axially movable relative to the yoke;
and
an anti-rotation structure disposed within the housing assembly and engaging at least a portion of the armature,
wherein the armature and the anti-rotation structure each have at least one feature formed thereon that mate with each other and thereby prevent rotation of the armature.

4 more elements

A solenoid actuator, comprising:

a housing;
a cover plate coupled to the housing;
a bobbin assembly disposed at least partially within the solenoid housing, the bobbin assembly including a return pole and a yoke, the yoke having an inner surface that defines an armature cavity;
a coil disposed within the solenoid housing and wound around at least a portion of the bobbin assembly;
an armature disposed within the armature cavity and axially movable relative to the yoke;
and
an anti-rotation structure disposed within the housing and engaging at least a portion of the armature, the anti-rotation structure at least partially comprising a material selected from the group that includes a thermoplastic polymer material, polytetrafluoroethylene (PTFE), and fluorinated ethylene propylene (FEP),
wherein the armature and the anti-rotation guide each have at least one feature formed thereon that mate with each other and thereby prevent rotation of the armature.

5 more elements

Dependencies are inferred from the claim text.

Solenoid including armature anti-rotation structure

Life of this patent

Solenoid including armature anti-rotation structure

Life of this patent

Abstract

Claims20