Dual-winding coil

Abstract

The invention discloses a dual-winding coil, which comprises a primary winding and a secondary winding, wherein an isolation insulation material is arranged between the primary winding and the secondary winding; and a primary insulation material is adopted to coat the primary winding, the secondary winding and the isolation insulation material into a whole. The isolation insulation material is arranged between the primary winding and the secondary winding to avoid mutual interference, the primary insulation material is then adopted to coat the primary winding and the secondary winding together, regular arrangement is carried out, the space occupied by the primary winding and the secondary winding is reduced, the groove type size needed for embedding is small, the end part size is small, and the motor performance is ensured.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a double-winding coil. Background technique [0002] The motor stator is an important part of motors such as generators and starters, and consists of three parts: stator core, coil and frame. The stator core is provided with embedded wire slots. The coil windings of high-power motors use flat copper wires with a rectangular cross-section. The coils are embedded in the slots of the stator core and wound around the stator core. At present, most of the multi-winding motors adopt multi-layer coil structure, and the embedded wiring is directly carried out without regularization. The winding process is simple, and the coils are easy to interfere with each other when embedded, and the operation is cumbersome; Large, the stator core must have deep enough slots to accommodate multi-layer coils, resulting in a deep slot section and a reduction in the effective area of ​​the silicon steel s...

AI Technical Summary

Problems solved by technology

At present, most of the multi-winding motors adopt multi-layer coil structure, and the embedded wiring is directly carried out without regularization. The winding process is simple, and the coils are easy to interfere with each other when embedded, and the operation is cumbersome; Large, the stator core must have deep enough slots to accommodate multi-layer coils, resulting in a deep slot section and a reduction in the effective area of ​​the silicon steel sheet; due to the large number of coil layers, the volume occupied by the coil size is large, which not only wastes materials, but also leads to Larger coil end dimensions

Excessive slot size and excessive coil end size directly affect the performance of the motor

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