SU924799A1 - Disk armature of multi-pole dc commutator electric motor - Google Patents

Description

The invention relates to electric machines, in particular, to special electric machines, which can be used in apparatuses. magnetic recording. Measles of multipolar pole collector electric motors with simple loop and new windings are known, in which the winding consists of sections, the number of which is equal to the number of collector plates, each section is connected to a collector. With a simple loop winding, the beginning and end of the section are connected to adjacent collector plates, and with a simple wave winding, the conclusions of the sections are connected in increments. where k is the number of collector plates; p is the number of pairs of poles. To improve switching in multi-pole motors with a simple loop winding, it is necessary to make equalizing connections. A conductor with a core with a simple loop winding is a number of brushes equal to the number of poles 2p, and a current lead with a wave winding of the core is carried out by two brushes, but in the case of large currents the number of brushes can be equal to the number of poles 2p. The disadvantages of such a Korea, for all the simplicity of the circuits, both simple loop and wave windings is that the lead ends of each section must be connected to the collector, which is laborious, as well as in a multi-pole electric motor with a simple loop winding the number w, stream, equal to the number of poles 2p, and the implementation of equalizing connections on the collector. The closest in technical essence to the proposed is

an electric motor with a disc core containing a plurality of sections of the same geometry, repeating the shape of a pole, assembled in the form of a disc. Each section has at least one round of insulated wire and two radially arranged working sides. Distributed - the sides of the sections are evenly distributed around the circumference and do not overlap one another. The sections of sections that are located along the radius closest to the center and farthest from the center overlap each other, therefore these sections are thicker than the working sides. The anchor also contains a collector and an insulating disc with a plurality of holes evenly around the circumference through which the conclusions of the sections come to the collector.

By the type of connections of sections with a collector, the winding of the core may be loop or wave. An insulating disc with holes may have printed conductors connecting the winding of the core to the collector, and in the case of a simple loop winding, the printed conductors are equalizing connections. The printed conductors of the insulation disc on one side can be used as collector plates.

Permanent magnets with axial magnetization located at the end of the magnetic circuit serve to excite the electric motor. The number of poles of an electric motor is greater than or equal to four 2.,

A disadvantage of such electric motors is that with a simple loop winding in the motor, a complex multi brush brush holder with the number d is used (a current equal to the number of poles 2p, as well as for both types of connections of the sections with the collector, it is difficult to connect the sections to the collector due to that the conclusions of each section must be connected to the collector.

The purpose of the invention is to simplify the design and reduce the laboriousness of manufacturing a disk core.

The goal is achieved. the fact that the sections of each coil are connected in series, the junction points of the sections are isolated from the collector, and the collector plates that are separated from each other by

The research institute of two pole divisions is connected in series into contact groups, with the number of sections in the coils and the number of collector plates 5 in the contact groups of the collector being equal to the number of pole pairs of the electric motor.

FIG. Figure 1 shows three-pole disc measles of a six-pole electromotor; in fig. 2 - coil of a disk core of a six-pole electric motor; in fig. 3 - the same, the second option; in fig. k - connection diagram of a three-tape disk

5 kor six-pole electric motor; in fig. 5 connection diagram of a pen drive disk core of a six-pole electric motor. Disc Measles Multipole

0, the DC collector motor consists of subsequent main elements (FIG. 1-3) of coils 1 with series-connected sections 2, a collector

5 3 In which the collector plates k are combined with contact groups with connectors 5The anchor is pressed together with a compound (not shown). Section 2 of each coil

0 spaced apart from each other at a distance of double pole deen of the e-mail. hail.)

Thus, being in the magnetic field of an electric motor in the same position, they contain an equal number of turns of the insulated wire wound with a continuous wire. The NICKY 6 wire interconnecting the sections 2 of the coils 1n connects to the collector 3- The working sides 7 of the sections 2 are separated from each other by pole division t and radially arranged. Coils 1 are shifted relative to each other by angles (e. Hail.), Equal to the quotient of dividing

, ZbO el.grad on the number of coils. The connection of the output ends of the coils 1 with the collector contact groups 3 formed by two electrically connected collectors spaced apart by two pole divisions

Claims (2)

plates 4 in an amount equal to the number of pole pairs of the motor P with a step equal to the number of coils, can be in a star. or the same as for simple loop windings connecting sections with collector collector plates. The collector plates are connected to the contact groups in the collector before the coils 1 are laid. With the three-core bark, the lead ends are connected to a star (Fig. And C). With this connection, the beginning of the first coil 1 is connected to the first contact pipe, which includes 1 i and 7 collector plates. The beginning of the second coil is connected to the second contact group, which includes 3, 6 and 9 collector plates, and the ends of the coils are connected together VI are isolated from the collector. The coils 1 can be made of separate sections wound with a continuous wire (Fig. 2), or they can be bent from a ring coil in the shape of poles (Fig. 3). In the crust with more than three coils, the lead ends of the coils are connected to the collector 9 contact groups in the same way as the simple loop windings connect the output ends of the sections to the collector plates. With this connection (Fig. K), the first coil connection With the first contact group of the collector 3, which includes 1.6 and 11 collector plates, and the end of the first and the beginning of the second coil 1 are connected to the second contact group, which includes 2, 7 and 12 collector plates, etc. . until the winding closes, i.e., until the end of the last coil is connected to the start of the first coil. The number of coils 1 in such a crust is equal to the number of contact groups of the collector 3 and the connection scheme of coils 1 for any number of pole pairs () forms only two parallel branches as well as in the core with a wave winding. The number of collector plates in the cortex is equal to the product of the number of coils and the number of pairs of poles p. The current lead in the core is carried out by two brushes 8, spaced one pole apart in the collector or (i + Ztn) pole divisions, where. At high currents, it is possible) to set the number of brushes equal to the number of poles of the 2p electric motor. In the diagrams of FIG. “And 5 brushes 8 spaced apart by 3 pole divisions + 2t located diametrically on the collector. In order to improve switching and reduce pulsation of emf at the output, the number of coils 1 must be applied odd. The repetition of the magnetically shaped electric system of the electric motor of the coils 1 core wound with a continuous wire and the formation of contact groups on the collector make it easier to measure and reduce the laboriousness of connecting the winding to the collector, as the number of connections decreases by (p-1). Claim disc disc disc of a multi-pole DC collector motor containing a winding made in sections, connected to a collector, characterized in that, in order to simplify the design and reduce the laboriousness of manufacturing, sections of each coil are connected in series, the sections of the sections are isolated from the collector, and the collector plates, one apart from the other at a distance of two lines of division, are interconnected into contact groups, with the number in the number of collector faces n In the contact groups of the collector is equal to the number of pairs of bands on the electric motor. . Sources of information taken into account during the examination 1.Zimin V.I. et al. 06MOTJ a of electric lamps. L., Energie, 1975 p. 35 2. USSR author's certificate tr 27 “20, cl. H 02 K 23/5, 1966. / g5 Yu