Magnetorheological Fluid Device
By using multiple parallel-connected coil wires and a switching control unit to adjust their connection state, the magneto-viscous fluid device increases transmission torque without altering the coil or battery specifications, addressing the limitations of existing devices.
Patent Information
- Application Number
- JP2021004525
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-01-14
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2041-01-14
AI Technical Summary
The maximum transmission torque in magneto-viscous fluid devices is limited by the rated voltage of the battery, making it difficult to increase torque without using larger and heavier batteries or adding energy-loss inducing booster circuits.
The device incorporates coils made of multiple parallel-connected wire wound in alignment, and a switching control unit that adjusts the connection state of the coil wires between parallel and series configurations based on the required output, allowing for increased torque without altering the coil's number of turns, cross-sectional area, or battery voltage.
This solution enables the maximum transmission torque to be increased without changing the coil or battery specifications, effectively enhancing the device's output while maintaining portability and efficiency.