CN202549576U - Novel filter reactor - Google Patents

Abstract

The utility model provides a new type of filter reactor, the filter has better heat dissipation, and the corresponding inductance should be achieved according to the design requirements. During the assembly process, three or four groups of reactances can also be placed in one control cabinet at the same time. The device includes coil windings, and the coil windings on each layer are wound by three, four or more strings of copper wires or aluminum wires in parallel, and air ducts are arranged between adjacent coil windings, so A spacer is provided between the coil windings; the material of the spacer is epoxy board.

Description

New filter reactor

technical field

The utility model relates to the field of electric equipment, in particular to a novel filter reactor.

Background technique

With the wide application of power electronics technology, high-order harmonics generated by nonlinear loads in modern industrial and mining industries enter the power system, and the existence of high-order harmonics will lead to increased power equipment loss, temperature rise, insulation aging, shortening Equipment life, thus affecting the economic benefits of the enterprise. The filter reactor is used in series with the parallel capacitor bank to form a resonant circuit, which can filter out the high-order harmonics generated by its nonlinear load, improve the quality of power supply, increase the power factor, save energy, and ensure the safe operation of equipment.

The existing reactor adopts a multi-layer cake structure, as shown in Figure 1, the coil winding 1 of the cake reactor is a circular structure spirally wound on the same plane with a metal wire, and is clamped by a bracket 4, and the current density Small, relatively consumable, and poor heat dissipation, it is impossible to put more pie-type reactors like this in the control cabinet, and the reactors are more likely to overheat and burn out.

Contents of the invention

In view of the above problems, the utility model provides a new type of filter reactor, the filter has better heat dissipation, and the corresponding inductance should be achieved according to the design requirements. During the assembly process, three groups or It is four sets of reactors.

Its technical scheme is as follows: it includes a coil winding, and the feature is that: the coil winding of each layer is wound by three, four or more strings of copper wires or aluminum wires, and the adjacent coils An air passage is arranged between the windings, and pads are arranged between the coil windings.

It is further characterized in that: the material of the gasket is epoxy board.

The beneficial effect of the utility model is that the reactor with this structure is provided with an air channel between the multi-layer coil windings, which has good heat dissipation and can ensure the safe operation of the reactor. The coil windings of each layer are composed of three strings, four strings or Multiple strings of copper wires or aluminum wires are wound in parallel to reduce the size. When assembling, three or four sets of reactors can be placed at the same time, which can not only achieve a large inductance, but also meet the design requirements.

Description of drawings

Fig. 1 is the top view of existing cake type reactor;

Fig. 2 is a top view of the utility model.

Detailed ways

As shown in Figure 2, the utility model includes a coil winding 1, and the coil winding 1 of each layer can be made of three strings, four strings or multiple strings of copper wires or aluminum wires according to known winding methods and wound into a cylinder The shape structure reduces the volume and increases the inductance. There is an air passage 2 between the adjacent coil windings 1, which has better heat dissipation and can ensure the safe operation of the reactor. There is a spacer between the coil windings 1. 3. The pad 3 is made of epoxy board.

Claims (2)

1. A new filter reactor, which includes coil windings, characterized in that: the coil windings of each layer are wound by at least three strings of copper wires or aluminum wires in parallel, and air gaps are arranged between adjacent coil windings. Road, there is a spacer between the coil windings. 2. The novel filter reactor according to claim 1, characterized in that: the pad is made of epoxy board.

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