Coreless motor coil structure
By adopting a staggered and overlapping rectangular coil unit structure in the hollow cup motor, the problems of high manufacturing difficulty and low electromagnetic efficiency are solved, and efficient and simple hollow cup motor coil manufacturing and operation are achieved.
Patent Information
- Application Number
- CN202422714996.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The direct-wound windings of existing coreless motors are difficult to manufacture, have low electromagnetic efficiency, and suffer from problems of uneven electromagnetic distribution and three-phase imbalance.
3N coil units are evenly distributed and staggered and overlapped to form a hollow cylindrical structure. Each coil unit is wound from the inner circle to the outer circle with self-adhesive enameled wire to form a rectangular coil. The coils of the same phase are wound with the same wire, and the current directions are consistent or opposite. It is used for 2-pole or 4-pole motors.
The manufacturing process is simplified, the electromagnetic efficiency and the consistency of the electromagnetic parameters of each phase of the motor are improved, the workload of line connection is reduced, and high-speed production and high-efficiency operation are achieved.