| 摘要 |
A high torque, low inertia direct drive motor comprises a circular outer stator 21 and a circular inner stator 25 and a ring of magnets 23a, 23b, 23c. The ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25. The circular outer stator 21 and ring of magnets and circular inner stator and ring of magnets are separated by an air gap. The circular outer stator 21 and circular inner stator 25 each have a plurality of teeth with coils wound around the teeth. The teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the teeth of the circular outer stator 46a, 46b, 46c. |
| 主权项 |
1. A high torque, low inertia direct drive motor having mounted with an encoder or a resolver, comprising a circular outer stator 21 and a circular inner stator 25 and a plurality of magnets 23a, 23b, 23c and forming a circular ring of magnets 23a, 23b, 23c, wherein the ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25 with an air gap between the magnets 23a, 23b, and 23c and the circular outer stator 21 and an air gap between the magnets 23a, 23b, 23c and the circular inner stator 25; wherein the circular outer stator 21 has a plurality of teeth 46a, 46b, 46c; wherein the circular inner stator 25 has a plurality of teeth 44a, 44b, 44c; wherein coils are wound around the teeth of the circular inner stator 26a, 26b, 26c and the teeth of the circular outer stator 22a, 22b, 22c; and wherein the plurality of teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the plurality of teeth of the circular outer stator 46a, 46b, 46c, and the encoder is arranged to provide position feedback for servo control, wherein the encoder comprises a stationary part that is mounted onto a motor housing and a moving part that is mounted to the support structure 31 that holds the ring of magnets between the circular outer stator and the circular inner stator such that a cable of the encoder goes through an inner hole of the motor through a base of the motor; and wherein the motor is a combination of the slot pole at 18 slots with 24 poles. |
