Winding clamp for bidirectional cake type 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.

CN224554167UActive Publication Date: 2026-07-24CHANGCHUN YINGPU MAGNETIC TECH DEV CO LTD
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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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

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Abstract

The utility model discloses a winding clamp for a bidirectional cake coil, which comprises a rotary guide wheel mechanism and a modularized clamp base, the modularized clamp base is driven by a speed reducing motor, the rotary guide wheel mechanism comprises a main correction assembly and an auxiliary correction assembly, and the main correction assembly comprises a transverse main correction wheel and a longitudinal main correction wheel; the auxiliary correction assembly comprises a transverse auxiliary correction wheel and a longitudinal auxiliary correction wheel, the transverse auxiliary correction wheel is elastically installed on the base through an installation base and a spring, and the two-way self-adaptive correction device can achieve two-way self-adaptive correction, avoid abrasion of a wire insulation layer, improve winding efficiency and reduce plastic deformation.
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