CN2064937U

CN2064937U - Capacitive noiseless electricity-saving device

Info

Publication number: CN2064937U
Application number: CN 90202697
Authority: CN
Inventors: 张光贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-09
Filing date: 1990-03-09
Publication date: 1990-10-31

Abstract

The utility model relates to a capacitive noiseless electricity-saving device, which comprises a series capacitor, a starting diode, a rectifying bridge and a double-throw double-bit test switch. The capacitive noiseless electricity-saving device can supply users for matching with a proper alternating current contactor, and can also be matched with an alternating current electromagnet which has homologous performance with the alternating current contactor but has no constantly-closed contact heads. The capacitive noiseless electricity-saving device can save electric energy, and can also eliminate the noise of the electromagnetic system of the alternating current contactor and improve environmental conditions.

Description

Capacitive noiseless electricity-saving device

The utility model relates to and non-ly is applicable to the relay special-purpose and improves the circuit arrangement that relay operation obtains required operating characteristic, relates in particular to a kind of condenser type quiet electricity economizer.

A.C. contactor DC operation circuit generally is commonly referred to as silent power-saving operation circuit, mostly is in the extend trial stage.Existing operation circuit miscellaneous is for reference, takes all factors into consideration condition of work, service conditions and economic effect factors by the user and adopts according to qualifications.Chinese patent CN89220261 " transformer type quiet electricity economizer " by inventor's application is exactly one of them.

The purpose of this utility model is on existing operation circuit base, proposes a kind of new condenser type quiet electricity economizer technical scheme.It is a kind of independently electrical equipment new product, for user and the suitable supporting use of A.C. contactor, it can also with performance classes with A.C. contactor but there is not the supporting use of alternating electromagnet of normally closed contact.

The utility model is a five-end network.Be provided with ac power input end 1,2, dc voltage output end 3,4 and middle leads terminal 5.Rectifier bridge ZL and double-throw dibit test switch SA that it comprises series capacitor C, starting diode Do, is made up of rectifier diode D1, D2, D3 and D4 _1-2Totally 4 units, assembly are equipped with shell, panel and 5 binding post 1-5 and form practical products.Series capacitor C and starting diode Do form series arm, one of series capacitor C is connected to input terminal 1, the other end is connected with starting diode Do negative electrode, an input that is connected to rectifier bridge ZL simultaneously is a rectifier diode D1 anode, and starting diode Do anode is connected to middle leads terminal 5.Another input of rectifier bridge ZL is that rectifier diode D3 negative electrode is connected to double-throw dibit test switch SA1 working position, be connected to input terminal 2 through test switch SA1 fixed contact, the output of rectifier bridge ZL promptly just is being connected to double-throw dibit test switch SA2 working position, be connected to lead-out terminal 3 through test switch SA2 fixed contact, another output of rectifier bridge ZL is that negative terminal is connected to lead-out terminal 4, also be connected to test switch SA1 test position, and test switch SA2 test position is connected to input terminal 1.

As double-throw dibit test switch SA _1-2When placing the test position, input terminal 1 of the present utility model is directly connected respectively with lead-out terminal 4 with lead-out terminal 3, input terminal 2.In case do not go up with the A.C. contactor adhesive of the utility model adapted, with test switch SA _1-2Place the test position, can judge the position of breaking down fast, still at A.C. contactor at quiet electricity economizer.If quiet electricity economizer breaks down, that not A.C. contactor by test switch SA _1-2The test position enters the interchange emergency operating.

The utility model and prior art distinguishing characteristics are to replace common current-limiting resistance R with starting diode Do and rectifier diode D1, D3 series arm, are used to prevent that attract current is excessive and burn the A.C. contactor CJ coil of adapted.

The circuit connecting mode that the utility model and A.C. contactor are supporting when using is: AC power one termination stop button TA, connect the parallel branch of forming by start button QA and A.C. contactor normally open contact CJ1 again, be connected to input terminal 1 of the present utility model then, and the AC power other end directly is connected to input terminal 2 of the present utility model, A.C. contactor solenoid CJ is connected across lead-out terminal 3,4 of the present utility model, and A.C. contactor normally closed interlock CJ2 is connected across input terminal 1 of the present utility model and middle leads terminal 5.Press start button QA, because the rectified action of starting diode Do and rectifier diode D1, D3 series arm, unidirectional pulsating current constitutes the loop through stopping button TA → start button QA → input terminal 1 → normally closed interlock CJ2 → middle leads terminal 5 → starting diode Do → rectifier diode D1 → test switch SA2 working position → lead-out terminal 3 → solenoid CJ → lead-out terminal 4 → rectifier diode D3 → test switch SA1 working position → lead-out terminal 2.A.C. contactor adhesive under unidirectional pulsating current effect, its normally open contact CJ1 connects self-locking, substitute start button QA, normally closed interlock CJ2 disconnects, series capacitor C place in circuit plays the extinguishing arc effect, bears most of alternating voltage, promptly plays the step-down effect, A.C. contactor solenoid CJ changes the capacitance decompression bridge rectifier output direct current of being made up of series capacitor C and rectifier bridge ZL and keeps, and enters the silent power-saving running status.

The utility model can also with performance classes with A.C. contactor but there is not the supporting use of alternating electromagnet of normally closed contact, its circuit connecting mode is: AC power one termination stop button TA, be connected to input terminal 1 again, the AC power other end directly is connected to input terminal 2, alternating electromagnet solenoid DCJ is connected across lead-out terminal 3,4, and start button QA is connected across input terminal 1 and middle leads terminal 5.

The utility model is the same with existing quiet electricity economizer, not only can save a large amount of electric energy, can also eliminate the noise of ac contactor electromagnetic system, improves environmental condition.In addition, can also reduce the temperature rise of electromagnetic system and coil significantly, prolong the useful life of A.C. contactor.Because the utility model circuit design self can be saved current-limiting resistance, uses capacitor step-down without the transformer step-down, can improve the power factor of electrical network, energy-saving efficiency is more obvious.

Accompanying drawing is the utility model and the matching used circuit interconnect pattern of A.C. contactor.In the frame of broken lines is the utility model electrical schematic diagram.

380 volts of embodiment alternating voltages, the supporting A.C. contactor that uses is CJ ₁₂-600A.

Series capacitor C:CJ48 type, 500 volts of 6 microfarads/interchange;

Starting diode Do:2CZ14/800 volt;

Rectifier diode D _1-4: 4 * 2CZ14/800 volt;

Test switch SA _1-2: KN3 type toggle switch.

Claims

1, a kind of rectifier bridge ZL and double-throw dibit test switch SA that comprises series capacitor C, starting diode Do, forms by rectifier diode D1, D2, D3 and D4 _1-2Totally 4 units, assembly, be equipped with shell, panel and ac power input end 1,2, dc voltage output end 3,4 with the condenser type quiet electricity economizer of middle leads terminal 5, it is characterized in that series capacitor C and starting diode Do form series arm, one of series capacitor C is connected to input terminal 1, the other end is connected with starting diode Do negative electrode, an input that is connected to rectifier bridge ZL simultaneously is a rectifier diode D1 anode, starting diode Do anode is connected to middle leads terminal 5, another input of rectifier bridge ZL is that rectifier diode D3 negative electrode is connected to double-throw dibit test switch SA1 working position, be connected to input terminal 2 through test switch SA1 fixed contact, the output of rectifier bridge ZL promptly just is being connected to double-throw dibit test switch SA2 working position, be connected to lead-out terminal 3 through test switch SA2 fixed contact, another output of rectifier bridge ZL is that negative terminal is connected to lead-out terminal 4, also be connected to test switch SA1 test position, and test switch SA2 test position is connected to input terminal 1, when the utility model starts, by starting diode Do and rectifier diode D1, the D3 series arm provides unidirectional pulsation starting current to A.C. contactor solenoid CJ.