SU1674315A1 - Method of manufacture of wave winding of stator of electric machine - Google Patents

Abstract

The invention relates to electrical engineering and can be used in the manufacture of electric machines with a wave winding, mainly from a large cross-section wire (D _pr * 981.3 mm), for example, in automobile generators. The purpose of the invention is to increase productivity and expand technological capabilities by winding windings from wires of any diameter. To do this, wire 4 is fed to the stator 1 tangentially to the diameter of its bore 3 at the end, clamping the end of the wire and forming each row of 5 coils 6 in the stator bore. The groove portions of the coils are placed opposite the respective grooves 2. Then each row of molded radially is pushed into the grooves of the stator. 3 il.

Description

The invention relates to electrical engineering and can be used in the manufacture of electric machines with a wave winding, mainly from a large cross-section (3 mm) wire, for example, in automobile generators.

The purpose of the invention is to increase productivity and expand technological capabilities by winding windings from wires of any diameter.

FIG. Figure 1 shows the layout of the Formed row of coils (coil) in the stator bore; in fig. 2 - a row of coils; in fig. 3 (a, b, c, d, e) is a scheme for forming a number of atyushka in a wave-like form.

A method for manufacturing the wave winding of the stator of an electric machine is implemented as follows.

Make the stator winding of the automotive generator 58.3701. The stator 1 has a package height of 25 mm and 36 slots 2, in which the intra-phase insulation is installed.

Install the stator 1 in the fixture (not shown in Fig.) And secure it, leaving the bore 3 of the stator free. Wire 4 of type PET-155 and with a diameter of 1.6 mm to the end of the stator is fed along an arc of a stator bore diameter (from 1: 97 mm) through an angle of 60-120 ° and fixes its end on the fixture. Each phase contains eight rows (turns) of 5 coils. Each row contains twelve coils 6.

Begins to form the 1st rd coils. The stator is rotated by a step (30 °), while by successively moving the three bars 7, which are inserted into the bore 3 of the stator, they form the first coil of a row and unclench the end of the drive (see Fig. 3 (a.c.d. Then, the stator is again rotated and the second coil of the row is molded with the help of three strips 8 (Fig. H). Thus, all the coils of the row (12 pcs.) Are made up with a continuous rotation of the stator through 360 ° to form katuo 1

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There is a cylinder, and the active parts of the coils are located opposite the corresponding slots of the stator, which is provided by the device. The finished row 5 coils 6 are pushed (Fig. 1) simultaneously from the bore of the stator 1 into the grooves 2 with a radial force P. Next, do not cut the wire, similarly mold the subsequent coils about the coils and push them into the same grooves of the stator before making the full phase containing in a series of 12 coils. To manufacture the second phase of the winding, the cycle is repeated.

This method also allows you to form a single coil. Immediately push it into the stator groove.

The proposed method can be implemented both manually using a tool, as well as on a specialized winding machine in automatic mode.

Using the proposed method of manufacturing the stator wave winding provides the following advantages over existing methods:

productivity increase by 1.5–2 times due to reduction of operations (permutation of coils from the stator bore to

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five

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five

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the pin mandrel) and the coiling of the coils into the slots of the stator with the pin mandrel;

expanding the technological capabilities of the method in connection with the possibility of making windings from wire, the diameter of which is commensurate with the flow area of the stator groove;

improving the quality of the windings by reducing damage to the enamel of the wire insulation.

Claims (1)

Invention Formula The method of manufacturing the stator wave winding of an electric machine, according to which the wire is fed into the working area for the phase length, forms each row of waveforms phase coils and puts each row of coils into stator slots, characterized in that, in order to increase productivity and expansion technological capabilities by winding windings from a wire of any diameter, the wire is fed to the stator along the arc of the inner bore at its end, each row of coils is molded sequentially in the bore of the stator, while placing marketing coil portion opposite the respective grooves, and placed each row of coils into the stator slots by the simultaneous radial pushing in coil row. FIG. 2