SU1656616A1 - Collector of electric machine - Google Patents

Abstract

This invention relates to electrical engineering, in particular to electrical machines. The goal is to reduce metal consumption and the cost of collector plates. The collector of an electric machine contains collector plates 1 with males 2. separated by insulating gaskets 3. 4. and together with gaskets 3 and 4, the males 2 form a continuous partition. Gaskets are made of two parts. The flat part of the gasket 3 comprises a rectangular cut-out in which the wedge-shaped part 4 of the gasket is partially located, which separates the cockerels 2, which are made in a U-shape 1 of the baseball. 6 yl

Description

The invention relates to electrical engineering, namely to electrical machines.

The aim of the invention is to reduce the consumption of materials and the cost of the collector of an electric machine.

FIG. 1 shows the proposed collector section; in fig. 2 is a view along arrow A in FIG. 1; in fig. 3 is an external collector element on an enlarged scale (node I in FIG. 1), in FIG. 4 shows a collector version; in fig. 5 is a view along arrow B in FIG. 4 in a scan; in fig. 6 - collector plate with cock.

The collector of the electric machine contains collector plates 1 with cockerels 2. separated by insulating pads 3 and 4. Moreover, together with the pads 3 and 4, the cockerels form a continuous partition 5, since the lateral surfaces of the cockerel from its base to the top are adjacent to the insulation pads . Insulating gaskets are made of two parts, part 3 has a rectangular section and in its upper corner near the cockerel there is a rectangular cutout 6. And part 4 is made wedge-shaped and located between the cockerels above the first cutout in the specified cutout. 1 shows that the cockerel 2 and the wedge-shaped part 4 of the gasket in the upper part have a notch 7 under the bandage 8 (shown by a dotted line together with a part of the winding that is connected to the cockerel 2) The path of the refrigerant formed by the curved segments 2, in which us is soldered onto the ends of the windings, spacers and the coolant impermeable baffle 5 prevents dust ingress into the cavity of the brush 9, providing a high state of the insulation in service

In order to increase the cooling efficiency, the roosters and the wedge-shaped portions of the 4 gaskets are mutually displaced in the axial direction, forming vent vanes 10 (see figs 4 and 5). Thus with

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when the collector rotates, the blades 10 turbulize the refrigerant and drive it through the channels formed between the gaskets and the males, increasing the cooling efficiency of the collector connections with the winding and, consequently, reducing the temperature of the conductors and the losses in them. For convenience of presentation, the formed collector surface is circumferentially arranged, in FIG. 5 deployed in line.

As can be seen from FIG. 6, the males are, for example, connected by hard soldering to the surfaces 11 of the collector plate. After assembling such plates into the package, together with asth 3 gaskets, in which the notch 6 is preformed, and pressing the bag into a device (not shown), pierce the cones under the clamping rings 12, install the insulating sleeves 13. Fasten the bolts 14 the collector and, after being molded, grind the groove 15 necessary for the cutter to enter when the collector is fired. The collector is connected to the winding by soldering with solder with a lower melting point than that at which the rooster crowns 2 are soldered. It is possible to solder the coil winding and the rooster with the collector plate at a time. In this case, additional process wedge gaskets are installed, which are removed after soldering. Due to the fact that the ends 16 of each rooster are located in the lateral recesses 17 of the collector plates 17 additionally made before the soldering of the rooster, in the upper part of them in the section of the notch 6 (see Fig. 2.3, 4), and after the installation of these recesses With the wedge-shaped parts 4 of the gaskets, the side surfaces of the rooster from its base to the upper part will be adjacent to the insulating gaskets, as noted above.

After grooving the surface under the bandage, installing the bandage and final processing of the sliding contact surface of the collector with the header propping up so that the upper surface of the parts of the gaskets 3 is below the sliding surface, the collector is ready for operation.

Due to the agreed configuration and

mutual arrangement of gaskets and collector plates, when part of the collector plate, made in most cases of expensive copper with an additive

silver is replaced by a wedge-shaped gasket made of an insulating material adjacent to the rooster, which makes it possible to replace the expensive metal with a large mass with another, while ensuring cost reduction.

Claims (1)

1. Electric car collector. containing wedge-shaped collector plates with cockerels, separated by insulating spacers, the lateral surfaces of the cockerel from its base to the top part are adjacent to insulating spacers, characterized in that. that, in order to reduce the material consumption and cost of the collector, the insulation strips are made of two parts, one of which has a rectangular cross-section, in its the upper corner in the cockerel area is a rectangular cut-out, and the second part of the gasket is made wedge-shaped and located between the cockerels above the first cutout in the specified cutout, the cockerels are made shaped and set so that the ends of each of them are located in additionally made on the collector plates in the top parts of them in the section of the side notches along their entire depth. 2 Collector pop 1, so-called. what. in order to increase the cooling efficiency, the roosters and the wedge-shaped parts of the gaskets are mutually offset in axial direction of the collector YY / ® Wu # V0W 9199S9I