CN201174357Y

CN201174357Y - Electricity-saving device of AC contact apparatus

Info

Publication number: CN201174357Y
Application number: CNU2008200333141U
Authority: CN
Inventors: 顾九虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-20
Filing date: 2008-03-20
Publication date: 2008-12-31
Anticipated expiration: 2018-03-20

Abstract

The utility model provides an electricity saver for an alternating current contactor, comprising a shell and an electronic circuit. The electricity saver is characterized in that: the electronic circuit comprises a holding circuit, a starting circuit and a delay circuit which are connected in parallel; the holding circuit comprises a switching power supply and an output circuit; the switching power supply is connected on a power supply; the starting circuit is also connected on the power supply; and the delay circuit is connected between an anode and a cathode of the switching power supply. The electricity saver is formed by electronic elements, and has the advantages of small volume, low cost and long service life; with the application of the electricity saver, the service life of a coil of the alternating current contactor can be prolonged; after the electricity is arranged on the alternating current contactor, electricity can be saved by over 40 times, and the operating current is reduced correspondingly.

Description

The A.C. contactor electricity-saving appliance

Technical field

The utility model relates to a kind of battery saving arrangement, particularly a kind of A.C. contactor electricity-saving appliance.

Background technology

A.C. contactor (CJ) is a kind of electromagnetic switch, and it is widely used in power industry, is indispensable switching device on the equipment such as power circuit, distribution, motor operation and automatic control.Because most of A.C. contactors all are in the state of running without interruption, so the solenoid on the A.C. contactor must consume certain electric energy, tens watts of several at most hectowatts at least, because operation throughout the year, so the accumulative total electric weight is quite surprising, the whole nation annual accumulative total A.C. contactor power consumption can reach more than several hundred million degree.Therefore work out with the matching used electricity-saving appliance of A.C. contactor very necessary.

Summary of the invention

Technical problem to be solved in the utility model is at the deficiencies in the prior art, provides a kind of

Technical problem to be solved in the utility model is to realize by following technical scheme.The utility model is a kind of A.C. contactor electricity-saving appliance, and it comprises housing and electronic circuit, is characterized in, described electronic circuit comprises holding circuit, start-up circuit and delay circuit in parallel; Described holding circuit comprises Switching Power Supply and output circuit; Switching Power Supply is connected on the power supply, and start-up circuit also is connected on the power supply, and delay circuit is connected between the both positive and negative polarity of Switching Power Supply.

Technical problem to be solved in the utility model can also further realize by following technical scheme.Above-described A.C. contactor electricity-saving appliance, be characterized in, be parallel with rectifier bridge UR, capacitor C 2, bidirectional thyristor VT and photo resistance RG on the described start-up circuit, series resistance R7 on the capacitor C 2, bidirectional thyristor VT goes up series connection bidirectional trigger diode V, and photo resistance RG goes up series resistance R8, resistance R 9 and capacitor C 3.

Technical problem to be solved in the utility model can also further realize by following technical scheme.Above-described A.C. contactor electricity-saving appliance is characterized in, the diode VD1 that between the positive pole of Switching Power Supply and rectifier bridge UR, connects, and series resistance R6 between the negative pole of Switching Power Supply and rectifier bridge UR connects diode VD2 at the positive and negative end of output circuit; Described diode VD1 all adopts the reversal connection mode to be connected with diode VD2.

Technical problem to be solved in the utility model can also further realize by following technical scheme.Above-described A.C. contactor electricity-saving appliance, be characterized in, described delay circuit comprises triode V1, resistance R 2, capacitor C 1, triode V2 and resistance R 4 in parallel, the collector series connection resistance R 5 of triode V1 and Light-Emitting Diode VL, series resistance R1 on the resistance R 2, series resistance R3 on the resistance R 4.

Below be the operation principle of the utility model electricity-saving appliance:

A.C. contactor is starting sticking in a flash in running, consumed power is very big, and it is very little to keep the power demand of adhesive.At this situation, behind the use electricity-saving appliance, after A.C. contactor was finished adhesive, delay circuit disconnected start-up circuit, is worked alone by holding circuit, can guarantee the normal operation of A.C. contactor.After the electricity-saving appliance energized, triode V1 conducting in the delay circuit, light-emitting diode is lighted, (light-emitting diode and photo resistance are sealed because of being subjected to light to be in low resistance in photo resistance in the start-up circuit, be in no light state), the bidirectional triode thyristor conducting, the rectifier bridge output dc voltage makes A.C. contactor start adhesive, in this triode V2 conducting in delay circuit in a flash, V1 is in and ends, light-emitting diode extinguishes, and photo resistance is in high value, and bidirectional triode thyristor ends, the normal operation of A.C. contactor is finished in the output of start-up circuit no-voltage by the Switching Power Supply in the holding circuit.

Compared with prior art, the utlity model has following advantage:

1, the utility model electricity-saving appliance is to adopt electronic component to constitute, and volume is little, and cost is low; Need not to enlarge the volume of original distribution box, the output of electricity-saving appliance is connected with ac contactor coil, directly it is installed in the A.C. contactor next door, connect very simple and convenient.

2, the utility model electricity-saving appliance long service life; It partly is made up of start-up circuit and operating circuit two; behind the instantaneous combined floodgate of A.C. contactor; start-up circuit promptly stops; have only operating circuit to provide holding voltage to A.C. contactor; operating circuit adopts Switching Power Supply; not only precision of voltage regulation height, oneself power consumption are low for it, and internal memory overcurrent, overvoltage protection, and can reach decades useful life.

3, use the utility model electricity-saving appliance can prolong the life-span of ac contactor coil.The coil of original A.C. contactor is directly to use line voltage, and line voltage can change with payload, so ac contactor coil will often bear higher voltage, therefore the phenomenon that burns out coil happens occasionally, and the utility model electricity-saving appliance provides a stable voltage to ac contactor coil, so ac contactor coil generally can not burnt out.

4, since the utility model electricity-saving appliance to A.C. contactor output be DC power supply, so A.C. contactor can not send the caused buzz of alternating electromagnet when operation, thereby use noiselessness.

5, use proof through test, after the utility model electricity-saving appliance was installed on the A.C. contactor, can economize on electricity reached more than 40 times, is example with 380 hint circles, use electricity-saving appliance after 380 volts of voltages can be reduced to 9 volts, and operating current is also corresponding diminishes.

Description of drawings

Fig. 1 is a kind of circuit diagram of the present utility model.

Embodiment

Following with reference to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the present invention further, and do not constitute restriction to its right.

Embodiment 1.With reference to Fig. 1.A kind of A.C. contactor electricity-saving appliance, it comprises housing and electronic circuit, described electronic circuit comprises holding circuit, start-up circuit and delay circuit in parallel; Described holding circuit comprises Switching Power Supply and output circuit; Switching Power Supply is connected on the power supply, and start-up circuit also is connected on the power supply, and delay circuit is connected between the both positive and negative polarity of Switching Power Supply.

Embodiment 2.In embodiment 1 described A.C. contactor electricity-saving appliance, be parallel with rectifier bridge UR, capacitor C 2, bidirectional thyristor VT and photo resistance RG on the described start-up circuit, series resistance R7 on the capacitor C 2, bidirectional thyristor VT goes up series connection bidirectional trigger diode V, and photo resistance RG goes up series resistance R8, resistance R 9 and capacitor C 3.

Embodiment 3.In embodiment 2 described A.C. contactor electricity-saving appliances, the diode VD1 that between the positive pole of Switching Power Supply and rectifier bridge UR, connects, series resistance R6 between the negative pole of Switching Power Supply and rectifier bridge UR connects diode VD2 at the positive and negative end of output circuit; Described diode VD1 all adopts the reversal connection mode to be connected with diode VD2.

Embodiment 4.In embodiment 1 described A.C. contactor electricity-saving appliance, described delay circuit comprises triode V1, resistance R 2, capacitor C 1, triode V2 and resistance R 4 in parallel, the collector series connection resistance R 5 of triode V1 and Light-Emitting Diode VL, series resistance R1 on the resistance R 2, series resistance R3 on the resistance R 4.

Claims

1, a kind of A.C. contactor electricity-saving appliance, it comprises housing and electronic circuit, it is characterized in that, described electronic circuit comprises holding circuit, start-up circuit and delay circuit in parallel; Described holding circuit comprises Switching Power Supply and output circuit; Switching Power Supply is connected on the power supply, and start-up circuit also is connected on the power supply, and delay circuit is connected between the both positive and negative polarity of Switching Power Supply.

2, A.C. contactor electricity-saving appliance according to claim 1, it is characterized in that, be parallel with rectifier bridge UR, capacitor C 2, bidirectional thyristor VT and photo resistance RG on the described start-up circuit, series resistance R7 on the capacitor C 2, bidirectional thyristor VT goes up series connection bidirectional trigger diode V, and photo resistance RG goes up series resistance R8, resistance R 9 and capacitor C 3.

3, A.C. contactor electricity-saving appliance according to claim 2, it is characterized in that, the diode VD1 that between the positive pole of Switching Power Supply and rectifier bridge UR, connects, series resistance R6 between the negative pole of Switching Power Supply and rectifier bridge UR connects diode VD2 at the positive and negative end of output circuit; Described diode VD1 all adopts the reversal connection mode to be connected with diode VD2.

4, A.C. contactor electricity-saving appliance according to claim 1, it is characterized in that, described delay circuit comprises triode V1, resistance R 2, capacitor C 1, triode V2 and resistance R 4 in parallel, the collector series connection resistance R 5 of triode V1 and Light-Emitting Diode VL, series resistance R1 on the resistance R 2, series resistance R3 on the resistance R 4.