SU1628137A1 - Magnetic circuit of face-type motor - Google Patents

Abstract

The invention relates to electrical engineering. The goal is to improve the energy performance and reduce the complexity of manufacturing. The magnetowire of the frontal electrical machine contains a toroidal timing belt I and a notched area with wedge-shaped teeth 2. The notched area is made of a corrugated ferromagnetic tape. To make the tooth wedge-shaped between the corrugations with the outer side of the tooth, additional elements are introduced, which are formed by bending to 180 protruding sections of the flat ferromagnetic tape used to manufacture the ZUBTIC ZONE. 3 1Л.

Description

1

The invention relates to electrical engineering, to the design of magnetic conductors of face machines.

The purpose of the invention is to improve the energy performance and reduce the labor intensity of manufacturing.

Figure 1 shows the magnetic stator; figure 2 - wedge-shaped prong; Fig. 3 shows a dentate zone in the process of forming from a flat ribbon.

The electrical machine's magnetic core contains a toroidal PMO 1 and a tooth-like zone with wedge-shaped teeth 2 formed by corrugated flat ferromagnetic tape 3. To make the teeth wedge-shaped, additional flat elements 6 are introduced between the plates 4 and 5 of the corrugations on the outer side of the magnetic circuit, which are formed by bending 180 Sections 7 edges of the tape. To do this, along the outer edge of the tape with widths 1 and 2, slots 8 are made with a depth of 2 x °, which corresponds to the width of the curved section. The slits are made at a distance h from each other, which corresponds to the height of the tooth. On the tape along the same edge as the cuts, there were made 9 cuts with a width D equal to the marking of the groove 10, under the winding. The magnitude of the geometrical parameters of the tape 1 (, l, h, D) depends on the power of the bus bar.

The length of the element 6 in the radial direction is determined from the following relationship:

1 - ЈD; An from

2 2 1

where P is the outer diameter of the magnetic circuit;

& - groove width; n is the number of slots; 1, - tooth length in radial

direction.

Due to the fact that the entire layer of the tooth is made of uniform steel, and the larger base of the wedge is formed by introducing an additional flat surface.

element, increases the resistance to transverse current in the tooth. This achieves a reduction in the total power consumption of the machine by about 1% when achieving high-quality electromagnetic characteristics.

For any type of machine size, the magnetic tube can be made without additional costs from the existing types of cold rolled ferromagnetic tapes. In addition, after the formation of the dentate zone, no additional mechanical treatment is required, the manufacture of the closed groove is facilitated.

Claims (1)

Invention Formula The magnetic circuit of an end electrical machine, which contains a toroidal rome and a toothed zone with wedge-shaped teeth, is made of a flat corrugated ferromagnetic tape, which is characterized by the formed by bent 180 ° protruding sections of the tape, and the length of the said element in the radial direction is determined from the ratio 40  n D-D p 9, Tb L where D is the outer diameter of the magnetic circuit; slot width; number of slots; tooth length in the radial direction. L p 1, Fig I 10 5