CN2136547Y

CN2136547Y - Energy-saving phase converter

Info

Publication number: CN2136547Y
Application number: CN 92224276
Authority: CN
Inventors: 杨琇方
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-06
Filing date: 1992-06-06
Publication date: 1993-06-16
Anticipated expiration: 2002-06-06

Abstract

The utility model relates to an energy-saving phase converter device which uses a single-phase alternating current power supply to run a three-phase alternating current motor three-phase alternator, comprising a housing, two switches, two capacitances, etc. One end of each of the two capacitances C[1], C[2] can be connected with one end of the K[1] after connecting, the connected common end is used as an output terminal; the other end of the K[1] is connected with a wire of the power supply, the other end of the C[2] is connected with one end of a K[2], and the other end of the K[2] is connected with the other end of the C[1]; the common end of the C[1] and the K[2] is used as the other output terminal, and the other wire of the power supply is directly connected with a third output terminal. With adopting the phase changing principle of the capacitance and the principle of increasing the power factor of an inductance circuit, the utility model can achieve the purpose of a single-phase power supply running a three-phase alternating current motor and saving electricity. The energy-saving phase converter has the advantages of simple structure, reliable operation and low manufacture cost.

Description

Energy-saving phase converter

The utility model belongs to a kind of energy-conservation phase convertor device that three phase alternating current motor adopts the 220V single phase alternating current power supply that is used for.

The purpose that the present technology that adopts series parallel circuits to improve power factor reaches electrical machine energy-saving is commonplace.But these methods all only are applicable to single phase poaer supply and connect the situation of monophase machine or three phase mains connection three phase electric machine that this is for general family or have only the place of single phase poaer supply will use the traditional technology of three phase electric machine just inapplicable.

The purpose of this utility model provides the phase convertor energy saver that a kind of employing 220 single phase alternating current power supplies are controlled the 380V three phase alternating current motor.

The purpose of this utility model is to realize like this.Adopt one group of windings in series of two groups of electric capacity in parallel and starting button switch and three phase electric machine, other two groups of windings of three phase electric machine connect the zero line and time line of power supply respectively, by the covert effect of electric capacity, just having reached single phase poaer supply provides rotating magnetic field and the purpose that improves power factor for three phase electric machine like this.

The utility model compared with prior art has simple in structure, reliable, energy-conservation and only with the advantage of the former three phase alternating current motor that just can turn round of single-phase alternating current.

The drawing of accompanying drawing is described as follows:

Accompanying drawing 1 is an outside drawing of the present utility model;

Accompanying drawing 2 is a schematic diagram of the present utility model.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing.

The utility model is by shell 1, and mains switch K1, starting switch K2, mutual capacitance C1, starting capacitance C2 form.All elements are all cased, on the surface of shell K1 and K2 arranged, and attaching plug and three motor wiring outputs.End with K1 after C1, C2 one end link joins, this common port that joins is as an output, another termination power line of K1, the end of another termination K2 of C2, the other end of another termination C1 of K2, the common port of C1 and K2 is as another output, and another line of power supply directly connects the 3rd output.Three on lines with three phase electric machine during use are connected on respectively on three outputs, and the K1 that closes meets down K2, and electric motor starting is decontroled the K2 motor and just begun normal operation.

Claims

1, a kind of energy-conservation phase convertor, by shell, two K switch 1, K2, elements such as two capacitor C 1, C2 are formed, and all elements are all cased, and K1, K2 are arranged on the surface of shell, attaching plug and three wiring outputs, it is characterized in that: the end of C1, the C2 back that links joins with the end of K1, and this common port that joins is as an output, the single line of another termination power of K1, the end of another termination K2 of C2, the other end of another termination C1 of K2; The common port of C1 and K2 is as another output, and another line of power supply directly connects the 3rd output.