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US 2025/0349451 A1Published application
Bi-stable device
AssigneeDana Automotive Systems Group, LLC
InventorsIvan LOPEZ, Nathan D. MANDERY, Kyle MOURDOCK
Life of this patent
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Abstract
Methods and systems for fabricating and operating a bi-stable solenoid actuator are described. The system may include permanent magnets that are arranged in a circle. The permanent magnets may provide sufficient force to maintain a differential in a locked state when electric power is not applied to a coil that operates as an electro-magnet.
Claims20
A bi-stable solenoid actuator, comprising:
- an annular steel housing that includes a U-shaped channel;
- a winding wrapped around an annular winding carrier;
- an annular steel piston;
- one or more permanent magnets arranged in a circle;
- an annular steel cover;
- and
- a return spring.
4 more elements
A method for a bi-stable solenoid actuator, comprising:
- forming an annular steel housing that includes a U-shaped channel;
- forming an annular winding carrier and wrapping a winding around the annular winding carrier;
- inserting the annular winding carrier and the winding within the U-shaped channel;
- placing one or more permanent magnets in direct contact with the annular steel housing;
- placing an annular steel cover over at least a portion of the U-shaped channel;
- and
- installing the bi-stable solenoid actuator to a differential housing.
4 more elements
A bi-stable solenoid actuator, comprising:
- an annular steel housing that includes a U-shaped channel;
- a winding wrapped around an annular winding carrier;
- an annular steel piston, the annular steel piston including an L shaped cross-section;
- one or more permanent magnets arranged in a circle;
- an annular steel cover;
- and
- a return spring.
4 more elements
Dependencies are inferred from the claim text.