Iron core-free winding device

Abstract

An iron core-free winding device comprises a plurality of first windings and second windings arranged side by side and made of a conductive material, wherein each first winding extends from a first point and taking the first point as a center to spirally wind into a planar polygonal shape; and each second winding extends from a second point and taking the second point as a center to spirally windinto a planar rhombus or triangle shape approximately. In the invention, the first windings and the second windings are arranged side by side and embedded together, so that the existing wiring space can be effectively utilized; the ineffective area caused by line twisting and overlapping is avoided through adopting the concentrated winding mode; and a better electromagnetic effect is provided under the same wiring area.

Description

technical field [0001] The invention relates to a winding device, in particular to an ironless winding device. Background technique [0002] In the field of traditional electric motors, the winding of the motor is usually made by winding enameled wires on the iron core (silicon steel sheet) of ferromagnetic material, but it is also limited by the iron loss due to the existence of the iron core. And the ferromagnetic saturation effect brought by the cogging of the iron core, which in turn affects the responsiveness of the overall motor. [0003] In order to improve the responsiveness of the motor, there is another "ironless core" winding design method in the industry. As the name implies, the traditional iron core is discarded in the motor winding, and only the conductor part is used to generate electromagnetic induction. This reduces the iron loss and the ferromagnetic saturation effect caused by the cogging of the iron core, and can also reduce the overall volume of the mo...

AI Technical Summary

Problems solved by technology

figure 1 and figure 2 They are wave (oblique) winding and overlapping winding method respectively, and their common disadvantage is that they generate overlapping invalid areas where the current travels in the opposite direction at their turning points.

As for the concentrated winding method, it is mostly implemented by the concentric winding method, and the rectangular wiring method ( Figure 4 ) also has the problem that the end winding is longer and takes up more space in implementation, while the elliptical or hexagonal wiring method ( image 3 ) can reduce the length of the end windings, and will also form multiple no-conductor areas at the junction of the shape blocks, but the area reserved for the middle via hole will also cause no Wire area, and cause a waste of space, obviously there is room for further improvement

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