RU1812596C - Manufacturing process for low-power electrical machine winding - Google Patents

Abstract

The invention relates to a technology for the manufacture of low-power electric machines, mainly information electric machines. SUMMARY OF THE INVENTION: winding is performed with the number of turns in even sections by one less than in odd sections. Conductors of the beginning and / or end are elongated. After laying, the lead-out conductors are laid in half-turns, the number of which is equal to the number of sections, and the step is equal to the step of the sections, after which the conductors of the beginning and end of the winding are aligned and brought out along the axis of the groove. The method allows to carry out the winding of precision electrical machines (CC without pair connections. 4 il,

Description

The invention relates to a technology for manufacturing low-power electric machines and can be used in the electrical industry, mainly in the manufacture of information electric machines, to increase the accuracy of which it is necessary to ensure uniform distribution of conductors in grooves and frontal parts,

The purpose of the invention is to increase reliability and reduce the complexity of manufacturing by reducing the number of rations.

Figure 1-4 shows the windings with the number of grooves per pole and phase equal to unity made by the proposed method (4 options). As an example, a four-pole winding with four sections and three turns in each section is shown. The numbers 1,2,3,4 indicate the numbers of the grooves. The thickened line shows the elongated output wires of the beginning and / or end of the winding. The direction of laying sections is indicated. The arrows in the winding indicate the direction of current in the sections.

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The manufacture of the winding of an electric machine is as follows. The sections are sequentially wound by known methods onto templates or directly into the grooves of an electric machine. Odd sections are wound with a number of turns equal to a given

and even sections - with the number of turns per unit less.

The following extension conductors are made for different winding circuits:

lead-out conductor

IB with an elongation of at least 5 + 1l

(figure 1) ;.

lead-out conductor

with an elongation of at least -Ј S and a lead-out conductor of the end of the winding with an elongation of at least 1 l (Fig. 2):

output conductor of the end of the winding with

the elongation is not less than

(Fig. 3); .

output conductor of the end of the winding with

an elongation of at least -j-S and a lead-out lead-out conductor with an elongation of at least 1 liter (Fig. 4); where 1B is the length of the coil section ;.

S is the number of winding sections;

1l - the length of the frontal part of one section.

Then (when winding onto the templates), the sections are sequentially laid in the grooves of the electric machine;

For the circuit shown in Fig. 1, after laying the sections, the lead-out lead conductor is laid with fixation in the frontal part of the first section in the direction of laying the sections within the arc corresponding to the section step along the grooves, and then into the groove corresponding to the end of the first section, this half-turn. Similar half-turns, the number of which is equal to the number of sections, the lead-out conductor is laid in the frontal parts and grooves, including the groove corresponding to the beginning of the last section in the direction of laying the sections, and then in the frontal part of the last section against the direction of laying of the sections to align with the conductor of the end of the winding and together with they lead outward along the axis of the groove. Fixing the lead wires of the beginning and end of the winding is carried out by known methods.

For the circuit shown in FIG. 2, after the sections are laid, the lead-out lead conductor is also laid with fixation in the frontal parts and winding grooves with half-turns, the number of which is equal to the number of sections, and the step is equal to the section step in the direction of laying sections, including the groove corresponding to the beginning of the last sections. The lead-out conductor of the end of the winding is laid in the frontal part of the last section within the arc corresponding to the step of the section in the direction of laying of the sections until it coincides with the conductor of the beginning of the winding and with it is brought out along the axis of the groove.

For the circuit shown in FIG. 3, after

laying sections, the output conductor of the end of the winding is laid with fixation in the frontal parts and grooves of the winding with half-turns, the number of which is equal to the number of sections, and the step is equal to the step of the sections, while the first half-turn

the conductor of the end of the winding is laid in the direction of laying the sections, and the rest in the opposite direction, after which the conductor of the end of the winding is laid in the frontal part of the first section until it coincides with the conductor of the beginning of the winding and is brought out along the axis of the groove.

For the circuit shown in figure 4, after laying the sections of the output conductor of the end of the winding is also laid with a fixation in

the frontal parts and grooves of the winding are half-turns, the number of which is equal to the number of sections, and the step is equal to the step of the sections, while the first half-turn of the conductor of the end of the winding is laid in the direction of laying the sections, and the rest in the opposite direction, The lead-out conductor of the beginning of the winding is laid in the frontal part of the first section in the direction stacking the sections to align with the conductor the end of the winding and with it lead outward along the axis of the groove.

When voltage is applied to the winding made with the manual, the direction of the current flowing through the lead-out / end conductors of the winding and laid in grooves and frontal parts coincides with the direction of the current flowing through the turns of the sections, which ensures the efficiency of the winding.

Combination of unequal number of turns

in odd and even sections with a one-turn difference with the laying of lead-out conductors of the start / end of the winding in the form of half-turns in the frontal parts and grooves of the winding, laying of the conductors of the start / end of the winding in the frontal part of the last / first section before aligning with the end conductor / start of winding allows you to get the number of conductors in the grooves corresponding to a given, and the same

the number of conductors in the frontal parts of each section, which ensures the necessary accuracy of the winding,

Due to the fact that the necessary winding circuit is ensured by lengthening the lead-out conductors with subsequent laying, there is no need to make pair connections, which increases the reliability of the winding and the machine as a whole, as well as reduces the laboriousness of manufacturing. For winding manufactured by

Claims (1)

the proposed method, it becomes possible to perform it mechanized by directly winding turns of sections into the grooves of an electric machine ... SUMMARY OF THE INVENTION A method of manufacturing a winding of an electric machine of low power with the number of grooves per pole and phase equal to unity and uniform distribution of conductors in the frontal parts, according to which sections are wound and successively laid in grooves, characterized in that, in order to increase reliability and lower - reducing the complexity of manufacturing by reducing the number of rations, the winding is performed with the number of turns in even sections by one less than in odd sections, the conductors of the beginning and / or end of the winding are made elongated, then the conductors of the beginning or end of the winding are laid with fixation in the frontal parts and grooves of the winding with half-turns, the number of which is equal to the number of sections, and the step is equal to the step of sections, the entire conductor of the beginning of the winding is laid in the direction of laying the sections, the first half-turn of the conductor of the end of the winding is laid in the direction of laying of the sections, and the rest in the opposite direction, after which the conductor of the beginning or end of the winding is laid in the forehead the last part of the last / first section, before aligning with the conductor the end or the beginning of the winding and lead outward along the axis of the groove. nolraYoleni mindZki sexs / a. Јь / ЈoneЈ # aYa /} a-.o6MQfriA: s Fig, 1 - Јб / ЈоЗм $ ... / уоо Sod XOHQO о $ currents Direction & Dhi. section beginning. winding FIG. 2 DIRECTION DIRECTION Profitable, LRO & 03 early winding Fig.Z r & t & iSttsJL END 0 && b / g h, L- & Me- 803 XQH4 & .06piQrikv  on / y && in y / section section