A winding jig for a bidirectional pancake coil
By using a rotating guide wheel mechanism and a modular clamp base, the problem of winding high-current coils has been solved, achieving efficient and precise bidirectional winding and insulation protection, thereby improving winding efficiency and coil life.
Patent Information
- Application Number
- CN202521863658.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-09-01
AI Technical Summary
High-current coils have high wire rigidity, making it difficult to achieve precise bidirectional winding, resulting in a lack of angle control, low efficiency, and stress concentration, which affects the coil's lifespan.
The device employs a rotary guide wheel mechanism and a modular clamp base, combined with a geared motor drive. The rotary guide wheel mechanism includes a main straightening component and an auxiliary straightening component. The symmetrically arranged transverse and longitudinal straightening wheels automatically adapt to the winding direction, ensuring the consistency of the wire bending angle. Nylon or polyurethane materials are used to protect the insulation layer, enabling rapid reversal and stress dispersion.
It achieves bidirectional adaptive correction, with wire bending angle error less than 0.5°, no damage to the insulation layer, a 50% increase in winding efficiency, a 70% reduction in wire stress, and a 20% improvement in magnetic field uniformity.