SU1264267A1 - Versions of one-phase combined winding for electric machines - Google Patents

Abstract

1. Single-phase aligned winding for electric machines, made with the numbers of pole pairs of uniformly distributed coils connected in parallel branches, the beginnings and ends of which form clamps for polarity P, and the outputs of their midpoints form two additional clamps for polarity Pj, distinguished by that, in order to expand the field of application by obtaining PI / PZ / and improving the parameters, it is made in 24 slots of 12 coils and connected in three branches, the coils in the branches are connected in series-according and have numbers 2, 5, 9, 12 in the first branch, 1, 4, 7, D 2 -3 S in 10 in the second branch, 3, 6, 8, 11 in the third branch, and these additional clamps are made from the middle points of the first and third branches, and coil pitch along grooves y 3. 2. Single-phase aligned winding for electric machines, filled with a number of pole pairs P of evenly distributed coils connected in parallel branches with two clips for polarity P and with leads from the middle points of the branches forming two additional clips for polarity P, characterized in that, in order to expand the region n by obtaining PI / PI 012/4 and improving the parameters, (L winding is made in 24 slots of 12 coils and connected in two parallel branches, coils in branches x are connected in series-according and have numbers 2, 5, 9, 12 in the first branches, 3, 6, 8, 11 in the second branch, and the coils 1, 4 Is9 and 7, 10 are connected in series with P 4ik. according to two additional branches, the beginning of the catupps 1 forms a clamp beginning of the phase, the pin of coil 4 is connected to the beginnings of parallel branches, their ends are connected to the beginning of coil 7, the end of the coil 10 forms the clamp of the end of phase, and the step of the coils along the slots of pack 3 a and u-ft

Description

The invention relates to coils of combined electric machines. They can be used, for example, in single-machine frequency and phase converters, in contactless synchronous machines with a combined pathogen, etc. The purpose of the invention is to expand the field of application by winding with pole pole numbers 12 / four. Figure 1 shows the scheme of the proposed I winding in the first embodiment in Figure 2 is the EMF diagram for the pole P 12; FIGS. 3 and 4 show a winding and a diagram for a winding in the second embodiment. The windings of FIGS. 1 and 3 are single-layer in 24 slots of 12 coils in steps along slots y, 3 and numbers from 1 to 12, Clips for polarity, “12 denoted as A1-X1, and additional clamps for polarity PJ 4 denoted as A2-X2. The coils in the branches are connected in series. In the winding in the first embodiment (FIG. 1), the coils are connected in three parallel branches: in the first branch, the coils with numbers 2, 5, 9, 12, but in the second branch - coils 1, 4, 7, 10, in the third branch - coils 3, 6, 8f 11. Additional clamps A2 and X are derived from the midpoints of the first and third branches: clamp A2 - from point 7 connecting the end of the coil 5 with the beginning. coil 9, a-clamp X2 - from the connection point of the end of the coil 6 with the beginning of the coil 8. From the diagram in Fig. 2, it can be seen that the field with the polarity P 12 does not induce an emf at terminals A2-X2. For the winding according to the second variant (Fig. 3), the connection is made in two. branches: in the first branch - coils with numbers 2, 5, 9, 12, and in the second branch - coils 3, 6, 8, 11. Coils 1, 4 and 7, 10 are connected into two additional branches and the beginning of coil 1 forms clip A1, the end of coil 4 is connected to the beginnings of parallel branches, their ends are connected to the beginning of coil 7 and the end of coil 10 forms clip XI. The field with P 12 does not induce an emf at terminals A2-X2. The arrows in Figures 1 and 3 show the directions of the currents when feeding the winding through the terminals A1-X1 with alternating current (upper row, P. 12) and when feeding the winding through the terminals A2-X2 with direct current (bottom row, 4). The constant current does not flow around the coils 1,4, 7 and 10, as a result of which the winding parameters are improved for the polarity PJ, the losses in copper are reduced and the shape of the MDS curve is improved. The proposed winding can be applied, for example, on a rotor of a contactless synchronous machine with 1 m inductors with a combined pathogen, replacing two separate windings.

2 S g.

L1

hg 10 11

Phi 12

Claims (2)

1. Single-phase combined winding for electric machines, made with the numbers of pairs of poles P, / P _g of evenly distributed coils connected in parallel branches, the beginning and ends of which form clamps for polarity P., and the conclusions of their middle points form two additional clamps for polarity P _g , characterized in that, in order to expand the scope by obtaining P </ P _g = 12/4 and> improve parameters, it is made in 24 slots of 12 coils and connected in three branches, coils in the branches are connected in series -According to and have a nom Era 2, 5, 9, 12 in the first branch, 1, 4, 7, 10 in a second branch, 3, 6, 8, 11 'of the third branch, said additional clamps formed from the midpoints of the first and third branches, and the coils of slots at step _n = 3. 2. Single-phase combined winding for electric machines, made with the numbers of pairs of poles Р * / Р _g from evenly distributed coils connected in parallel branches with two clips for polarity P ₁ and with leads from the middle points of the branches, forming two additional ^ clamps for polarity P _g, I otlichayuschayas in that, in order to expand applications by obtaining Ρι / _z 012/4 P and improve the parameters, made in the winding grooves 24 and 12 of coils connected in two parallel branches, the branches of the coil are connected in series, according to have numbers 2, 5, 9, 12 in the first branch, 3, 6, 8, 11 in the second branch, and coils 1, 4 and 7, 10 are connected sequentially in two additional branches, the beginning of coil 1 forms the start phase clamp, the end of coil 4 is connected to the beginnings of parallel branches, their ends are connected to the beginning of the coil 7, the end of the coil 10 forms a clamp of the end of the phase, with the coil pitch along the grooves „= 3. about 2 one 764267