SU1504734A1 - Core electric machine armature - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to increase reliability. The core of the core contains RMI with ventilation ducts and a dentate zone. In the two extreme sheets 1 and 2 adjacent grooves 3, 5 are bent by 90 °. In the frame of both sheets, the protrusions are made by bending 90 ° of parts 9, 11 rma. The protrusions of the dentate zone and the rom of both extreme sheets enter into each other. These protrusions can be shifted relative to each other in the tangential direction by the thickness of the sheet. The projections in the chassis can be located opposite the ventilation ducts. The two folded parts of both extreme sheets may have different heights. This increases the rigidity of the extreme sheets. 3 hp f-ly, 9 ill.

Description

Sd. About CO 4

Fi &. 9

3150

The invention relates to electrical engineering, in particular to electrical machines having a measles laminated core.

The purpose of the invention is reliability.

At 4 g. 1 shows two sheets of core with protrusions on the teeth and the frame; figure 2 - section aa in fig „1; on fig.Z - section bb in Fig. | on 4ig.4 - two leaves of the core with protrusions located asymmetrically relative to the axis of the tooth; .5 - section BB in FIG. 4 (protrusions of the same height); Fig, 6 - section bb In 43IG.4 (projections of different heights); in Fig.7 a section on (protrusions of the same height); Fig, 8 is a section in Fig.4 (protrusions of different heights); figure 9 - core electric machine, axonometric.

The core of the electric machine's core is made of the 1st to the 1st of electrical steel sheets. When cutting out the extreme sheets 1 and 2, the groove parts of the sheet are bent 90 ° and form pressure fingers 3 and 4 and 5 and b located on both sides of the teeth 7 and 8. In addition to Moreover, in the frame of sheets 1 and 2, protrusions 9 and 30 and 1 1 and 12 are carried out by bending 90 parts of the frame. Sheets 1 and 2 are set so that the load-bearing fingers 4 and 6 are loaded by pressing fingers 3 and 5. The latter prevent the bending of the pressing fingers 4 and 6 inside the package during the e-pressing of the package. for that prevents the deterioration of insulation of the winding. Similarly, the protrusions 9 and 10 in the length of the lissg are covered by the protrusions 11 and 32, which interferes with the bending of the protrusions 9 and 10 and allows the load to be distributed more evenly when the package is pressed. Said protrusions in the back of the sheets and 2 can be stamped by ventilation openings, which in this case are made direct volt.

When placing the pressing fingers 3 and 4 and 6 and the protrusions 9 and 10 and 11 and 32 are asymmetrical relative to the axis of the groove, i.e. displacing them relative to each other by sheet thickness, the pressing reliability is not reduced since, in this case too, the pressure fingers 3 and 4 and the protrusions 9 and 31 are covered by the pressure fingers 5 and 6 and the projections 30 and 32, which prevent bending First, at the same time, sheets 3 and 2 at the same time become identical, which allows them to be obtained on a single stamp and increases the technical logic of this design. In the latter case, the pressure fingers 3 and 4 and the protrusions 9 and 13 are higher than the pressure fingers 5 and B and the protrusions 30 and 12, respectively, can be obtained when using this design as ventilation struts for radial ventilation. channels of the required size by adjusting the height of the bent parts.

The core of the electric core mz shyg-s works as follows.

Claims (2)

The design of the core allows to increase the reliability of the core due to the fact that when the package is pressed in, additional stamped protrusions in the back of the extreme sheets and stacked protrusions on the teeth provide reliable compression of the steel package, and when the Hiibix protrusion is pushed in the case of alignment, the teeth When the package is different in thickness, the protrusions on the teeth do not bend back into the groove and do not spoil the insulation of the winding, and the protrusions in the back do not bend back into the ventilation holes. The use of protrusions of different heights makes it possible to obtain radial ventilation ducts with a height of a greater half of the slot part. Claim 1, The core of the electric raspberry core, containing rmo with valve holes of m-, tooth zone made of sheets of electrical steel, and adjoins 11) 1-1e of each tooth, groove parts of the outermost sheet, bent on 90 about tl and h and y pd and and with that. that, with the aim of raising the hem, the groove parts of the sheet adjacent to the tooth, adjacent to the extreme one, are bent by 90 °, and protrusions are made in the frame of both sheets by bending 90 ° parts. rma, and the protrusions of the dentate zone and rm of both extreme sheets enter into each other. 2. The core according to claim 2, characterized in that the bent portions of the dentate zone toward the chassis are offset relative to each other in the tangential direction by the thickness of the sheet 3 core according to nn and 2, characterized in that what is 515047346 Dips in the frame are placed opposite the height adjustment of the bent clock. bore holes in the toothed zone and the chassis, two bent 4. The core according to claims 1-3, about t and the th parts of both extreme sheets have often because, with a view to a different height. Fig.G Thebes. 4-4 6 3 ff 2-5-5 Fig.Z 8-B B 12 W11 FIG. 6 R-y 11 S 11 FIG, B