CN2465310Y - Energy-saving ac contact - Google Patents
Energy-saving ac contact Download PDFInfo
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- CN2465310Y CN2465310Y CN 01215214 CN01215214U CN2465310Y CN 2465310 Y CN2465310 Y CN 2465310Y CN 01215214 CN01215214 CN 01215214 CN 01215214 U CN01215214 U CN 01215214U CN 2465310 Y CN2465310 Y CN 2465310Y
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Abstract
The utility model relates to an energy-saving AC contactor with the function of electric energy saving, which is used for controlling electric appliances of electromechanical devices. An energy-saving control circuit composed of a coil control circuit, a heavy current attraction circuit and a low current sustain circuit is added in the existing AC contactor. When an AC control power supply is switched on, the coil control circuit provides heavy current which is needed when the AC contactor carries out attraction to a coil under the action of the heavy current attraction circuit; after the AC contactor is attracted, the coil control circuit provides low current which is needed when the AC contactor carries out attraction to the coil under the action of the low current holding circuit, and the energy-saving operation of the AC contactor is realized.
Description
The utility model relates to a kind of energy-saving alternating current contactor with energy-saving protective effect.
At present, A.C. contactor owing to safe in utilization, control is convenient, all more satisfactory long-range and automatic control switch that is widely used in various single, the three-phase electric apparatus equipment in industry and other production fields of various electric properties.A.C. contactor is in routine is used, because operating current is big during operation, the electric energy of gross power about 92% all is lost in magnetic hysteresis, eddy current, reaches on the short-circuited conducting sleeve, the meritorious power consumption major part of coil also becomes heat and loses, and in addition, sticking and startup are unstable, vibration noise is big, weak heat-dissipating makes A.C. contactor damage easily, has shortened the useful life of A.C. contactor.
The purpose of this utility model provides a kind of energy-saving alternating current contactor, it is not only simple in structure, convenient and practical, simultaneously, this energy-saving alternating current contactor is in operation owing to the working method of taking big electric current adhesive, little electric current sticking, therefore, power consumption during the A.C. contactor operation is very little, the friction noise has improved the adhesive performance, has solved the phenomenon that when peak of power consumption A.C. contactor is difficult to normal adhesive and sticking, it is lonely that contact can not produce electricity, prolonged the service time of A.C. contactor.
The utility model is to have increased the energy-saving control circuit of being made up of coil control circuit, big electric current attraction circuit and little electric current holding circuit in existing A.C. contactor; Two inputs of the ac control power supply of existing ac contactor coil are replaced by A1, the A2 input of the ac control power supply of this energy-saving alternating current contactor; Coil control circuit is made up of coil La, diode D2, the one-way SCR BT1 of A.C. contactor, diode D2 is in parallel with the two ends of coil La, the negative electrode of diode D2 is connected with the A1 input of ac control power supply, the anode of diode D2 is connected with the anode of one-way SCR BT1, and the negative electrode of one-way SCR BT1 is connected with the A2 input of ac control power supply; Big electric current attraction circuit is made up of diode D1, resistance R 1, R2, capacitor C 1, end after the parallel connection of resistance R 1 and capacitor C 1 is connected with an end of resistance R 2, the other end is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the A1 input of ac control power supply, and the other end of resistance R 2 is connected with the trigger electrode of one-way SCR BT1; Little electric current holding circuit is made up of resistance R 3, capacitor C 2, one end of resistance R 3 is connected with an end of capacitor C 2, the trigger electrode of one-way SCR BT1 respectively, the other end of resistance R 3 is connected with the A1 input of ac control power supply, and the other end of capacitor C 2 is connected with the A2 input of ac control power supply; Controllable silicon BT1 in the coil control circuit is saturation conduction under the big angle of flow triggering signal effect that big electric current attraction circuit provides, required big electric current when the coil La of A.C. contactor provides adhesive, after big angle of flow triggering signal time-delay, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under the little angle of flow triggers when coil La provides the A.C. contactor sticking the required little direct current of pulsation, realize the alternating-current contactor energy-saving operation.
Owing to taked such scheme, energy-saving alternating current contactor is to move required big electric current adhesive, the power save mode work of little electric current sticking, guaranteed little power consumption operation of A.C. contactor, thereby realized that the A.C. contactor adhesive is rapid, sticking is stable, energy-saving run, the purpose that increases the service life.
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is another circuit theory diagrams of the present utility model.
Fig. 3 is another circuit theory diagrams of the present utility model.
Fig. 4 is another circuit theory diagrams of the present utility model.
Fig. 5 is another circuit theory diagrams of the present utility model.
Fig. 6 is another circuit theory diagrams of the present utility model.
Fig. 7 is another circuit theory diagrams of the present utility model.
Fig. 8 is another circuit theory diagrams of the present utility model.
Fig. 9 is another circuit theory diagrams of the present utility model.
Figure 10 is the circuit theory diagrams of embodiment of the present utility model.
Among the figure, A1, two inputs of A2 ac control power supply of the present utility model, Va, Vb, the Vc three-phase alternating-current supply, S1, S2, S3,4 groups of normally opened contacts of S4 A.C. contactor, 11, two terminals of the 1st group of normally opened contact of 12 A.C. contactors, 21, two terminals of the 2nd group of normally opened contact of 22 A.C. contactors, 31, two terminals of the 3rd group of normally opened contact of 32 A.C. contactors, 41, two terminals of the 4th group of normally opened contact of 42 A.C. contactors, the 5th group of normally-closed contact of S5 A.C. contactor, QA starting button, TA stop button, 5 the utility model, the M threephase motor.
As shown in Figure 1, the utility model is to have increased the energy-saving control circuit of being made up of coil control circuit, big electric current attraction circuit and little electric current holding circuit in existing A.C. contactor; Coil control circuit is made up of coil La, diode D2, the one-way SCR BT1 of A.C. contactor, diode D2 is in parallel with the two ends of coil La, the negative electrode of diode D2 is connected with the A1 input of ac control power supply, the anode of diode D2 is connected with the anode of one-way SCR BT1, and the negative electrode of one-way SCR BT1 is connected with the A2 input of ac control power supply; Big electric current attraction circuit is made up of diode D1, resistance R 1, R2, capacitor C 1, end after being connected in parallel of resistance R 1 and capacitor C 1 is connected with an end of resistance R 2, the other end is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the A1 input of ac control power supply, and the other end of resistance R 2 is connected with the trigger electrode of one-way SCR BT1; Little electric current holding circuit is made up of resistance R 3, capacitor C 2, one end of resistance R 3 is connected with an end of capacitor C 2, the trigger electrode of one-way SCR BT1 respectively, the other end of resistance R 3 is connected with the A1 input of ac control power supply, and the other end of capacitor C 2 is connected with the A2 input of ac control power supply; Ac control power supply passes through A1, when two inputs of A2 are connected, ac control power supply is by the A1 input, provided charging current by diode D1 rectification to capacitor C 1, capacitor C 1 is by current-limiting resistance R2, the trigger electrode of one-way SCR BT1 and negative electrode charging, one-way SCR BT1 is saturation conduction under the charging current effect of capacitor C 1, required big electric current when coil La provides the A.C. contactor adhesive, after the charging of capacitor C 1 finishes, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under little angle of flow triggering when coil La provides the A.C. contactor sticking the required little direct current of pulsation.
As shown in Figure 2, the diode D1 in the big electric current attraction circuit among Fig. 1, capacitor C 1, resistance R 1 are replaced by the 5th group of normally-closed contact S5 of A.C. contactor; The end of the 5th group of normally-closed contact S5 of A.C. contactor is connected with an end of resistance R 2, and the other end of normally-closed contact S5 is connected with the A1 input of ac control power supply; When ac control power supply is connected by two inputs of A1, A2, ac control power supply is by the A1 input, trigger one-way SCR BT1 saturation conduction by normally-closed contact S5, current-limiting resistance R2, required big electric current when coil La provides the A.C. contactor adhesive, after the A.C. contactor adhesive, the 5th group of normally-closed contact S5 of A.C. contactor disconnects, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under little angle of flow triggering when coil La provides the A.C. contactor sticking the required little direct current of pulsation.
As shown in Figure 3, the energy-saving control circuit among Fig. 1 is replaced by big electric capacity attraction circuit and little electric capacity holding circuit; Big electric capacity attraction circuit is made up of coil La, diode D2, D4, capacitor C 4, the resistance R 4 of A.C. contactor, diode D2 is in parallel with the two ends of coil La, the negative electrode of diode D2 is connected with the A1 input of ac control power supply, end after capacitor C 4 and resistance R 4 parallel connections is connected with the negative electrode of diode D4, the other end is connected with the A2 input of ac control power supply, and the anode of diode D4 is connected with the anode of diode D2; Little electric capacity holding circuit is made up of capacitor C 3, and an end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply; When ac control power supply is connected by two inputs of A1, A2, ac control power supply is imported from the A1 input, provided charging current by diode D4 rectification to capacitor C 4 by coil La, capacitor C 4 is by the internal resistance charging of coil La, required big electric current when coil La provides the A.C. contactor adhesive simultaneously, after the charging of capacitor C 4 finishes, by capacitor C 3 required little direct current of pulsation when coil La provides the A.C. contactor sticking.
As shown in Figure 4, the capacitor C in the big electric capacity attraction circuit among Fig. 34 is replaced by the 5th group of normally-closed contact S5 of A.C. contactor with resistance R 4; The end of the 5th group of normally-closed contact S5 of A.C. contactor is connected with the negative electrode of diode D4, and the other end of normally-closed contact S5 is connected with the A2 input of ac control power supply.When ac control power supply is connected by two inputs of A1, A2, ac control power supply is imported from the A1 input, through coil La by diode D4 rectification after, the required big electric current when coil La provides the A.C. contactor adhesive of the 5th group of normally-closed contact S5 by A.C. contactor, after the A.C. contactor adhesive, the 5th group of normally-closed contact S5 of A.C. contactor disconnects, by capacitor C 3 required little direct current of pulsation when coil La provides the A.C. contactor sticking.
As shown in Figure 5, the big electric current attraction circuit among Fig. 1 is connected into the time-base integrated circuit 555 and the direct current regulation circuit replacement of monostable circuit; Direct current regulation circuit is made up of capacitor C 5, C6, resistance R 4, diode D5 and voltage-stabiliser tube Dw; Capacitor C 5 is in parallel with resistance R 4, one end of capacitor C 5 is connected with ac control power supply A1 input, the other end of capacitor C 5 links together with the anode of diode D5 and the negative electrode of voltage-stabiliser tube Dw respectively, the anode of voltage-stabiliser tube Dw is connected with the A2 input of ac control power supply, the negative pole of capacitor C 6 respectively, form common, the positive pole of capacitor C 6 is connected with the negative electrode of diode D5, forms the D.C. regulated power supply positive pole; Monostable circuit is made up of resistance R 5, capacitor C 8, diode D4 and time-base integrated circuit 555; The typical monostable circuit that resistance R 5, capacitor C 8 and time-base integrated circuit 555 are formed, one end of resistance R 5 is with after an end of capacitor C 8 is connected, be connected with reset terminal TH (high level resets) with the set end TR (low level set) of ic 555 respectively, another termination D.C. regulated power supply positive pole of resistance R 5, another termination common of capacitor C 8, the output OUT of time-base integrated circuit 555 is connected with the anode of diode D4, and the negative electrode of diode D4 is connected with the trigger electrode of one-way SCR BT1; When ac control power supply is connected by two inputs of A1, A2, because the voltage Vc8 at capacitor C 8 two ends can not suddenly change, at this moment
, time-base integrated circuit 555 is set, its output output high potential signal, and this high potential signal extends to the voltage at capacitor C 1 two ends always
The time 555 time-base integrated circuits end when being reset; This high potential signal is isolated the back by diode D4 and is triggered one-way SCR BT1 saturation conduction, the one-way SCR BT1 of saturation conduction required big electric current when coil La provides the A.C. contactor adhesive, after 555 time-base integrated circuits are reset, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under the little angle of flow triggers when coil La provides the A.C. contactor sticking the required little direct current of pulsation.
As shown in Figure 6, the little electric capacity holding circuit formed by capacitor C 3 of the little electric current holding circuit among Fig. 5 replaces; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply; When ac control power supply is connected by two inputs of A1, A2, because the voltage Vc8 at capacitor C 8 two ends can not suddenly change, at this moment
, time-base integrated circuit 555 is set, and at output output high potential signal, this high potential signal extends to the voltage at capacitor C 1 two ends always
The time 555 time-base integrated circuits end when being reset; This high potential signal is isolated the back by diode D4 and is triggered one-way SCR BT1 saturation conduction, the one-way SCR BT1 of saturation conduction required big electric current when coil La provides the adhesive of A.C. contactor, after 555 time-base integrated circuits are reset, at output OUT output low-potential signal, diode D4 ends, one-way SCR BT1 Triggerless and ending is by capacitor C 3 required little direct current of pulsation when coil La provides the A.C. contactor sticking.
As shown in Figure 7, the big electric current attraction circuit among Fig. 1 is replaced by the transistor delay circuit and the direct current regulation circuit of resistance R 6, R7, capacitor C 9, diode D4, D6 and transistor T 1 composition; Direct current regulation circuit is made up of capacitor C 5, C6, resistance R 4, diode D5 and voltage-stabiliser tube Dw; Decompression capacitor C5 is in parallel with discharge resistance R4, one end of capacitor C 5 is connected with ac control power supply A1 input, the other end of capacitor C 5 links together with the anode of rectifier diode D5 and the negative electrode of voltage stabilizing didoe Dw respectively, the anode of voltage stabilizing didoe Dw links together with the A2 input of ac control power supply respectively, form common, the negative pole of filter capacitor C6 is connected with common, and the positive pole of filter capacitor C6 is connected with the anode of rectifier diode D5, forms the D.C. regulated power supply positive pole; Voltage stabilizing didoe Dw thinks that decompression capacitor C5 provides the mode of afterflow to realize the half-wave voltage stabilizing.Ac control power supply is by capacitor C 5 step-downs, diode D5 halfwave rectifier, after the voltage-stabiliser tube Dw voltage stabilizing, for the transistor delay circuit provides DC power supply.The transistor delay circuit is made up of resistance R 6, R7, capacitor C 9, diode D4, D6 and transistor T 1; One end of resistance R 7 respectively with an end of capacitor C 9, the anode of diode D6 connects, the negative electrode of diode D6 is connected with the base stage of transistor T 1, the positive pole of another termination D.C. regulated power supply of resistance R 7, another termination common of capacitor C 9, form the RC charge-discharge circuit, the sending out of transistor T 1 thanked to the utmost point and to connect common, the positive pole of one termination D.C. regulated power supply of resistance R 6, the other end of resistance R 6 respectively with the collector electrode of transistor T 1, the anode of diode D4 connects, the negative electrode of diode D4 is connected with the trigger electrode of one-way SCR BT1, and the big angle of flow triggering signal of controllable silicon that the transistor delay circuit forms is by the negative electrode output of diode D4.When ac control power supply was connected by two inputs of A1, A2, the voltage Vc9 at capacitor C 9 two ends can not suddenly change, at this moment Vc9＜Vbe+V
D6Transistor T 1 ends, by diode D4 output high potential triggering signal, trigger one-way SCR BT1 saturation conduction, the one-way SCR BT1 of saturation conduction required big electric current when coil La provides the A.C. contactor adhesive, when the charging voltage Vc9 at capacitor C 9 two ends is increased to when making transistor T 1 saturation conduction, diode D4 ends, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under the little angle of flow triggers when coil La provides the A.C. contactor sticking the required little direct current of pulsation.
As shown in Figure 8, the little electric current holding circuit among Fig. 7 can be replaced by the little electric capacity holding circuit that capacitor C 3 is formed; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply; When ac control power supply is connected by two inputs of A1, A2, because the voltage Vc9 at capacitor C 9 two ends can not suddenly change, Vc9＜Vbe+V at this moment
D6Transistor T 1 ends, by diode D4 output high potential triggering signal, trigger one-way SCR BT1 saturation conduction, the one-way SCR BT1 of saturation conduction required big electric current when coil La provides the A.C. contactor adhesive, when the charging voltage Vc9 at capacitor C 9 two ends is increased to when making transistor T 1 saturation conduction, diode D4 ends, one-way SCR BT1 Triggerless and ending is by capacitor C 3 required little direct current of pulsation when coil La provides the A.C. contactor sticking.
As shown in Figure 9, the little electric current holding circuit among Fig. 1 can be replaced by the little electric capacity holding circuit that capacitor C 3 is formed; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply; Ac control power supply passes through A1, when two inputs of A2 are connected, ac control power supply is by the A1 input, provided charging current by diode D1 rectification to capacitor C 1, capacitor C 1 is by current-limiting resistance R2, the trigger electrode of one-way SCR BT1 and negative electrode charging, one-way SCR BT1 is saturation conduction under the charging current effect of capacitor C 1, required big electric current when coil La provides the A.C. contactor adhesive, after the charging of capacitor C 1 finishes, one-way SCR BT1 Triggerless and ending is by capacitor C 3 required little direct current of pulsation when coil La provides the A.C. contactor sticking.
In the embodiment shown in fig. 10, when pressing starting button QA, ac control power supply Vab divides two tunnel inputs; One tunnel SCR control circuit through little angle of flow triggering sticking, because the little angle of flow trigger circuit triggers one-way SCR BT1 angle of flow that resistance R 3 capacitor C 2 are formed is less, the electric current that passes through is very little, can not make the A.C. contactor adhesive; The adhesive delay circuit is triggered by the big angle of flow in another road, by diode D1 halfwave rectifier, provide charging current to capacitor C 1, capacitor C 1 is by current-limiting resistance R2, the trigger electrode of one-way SCR BT1 and negative electrode charging, one-way SCR BT1 is saturation conduction under the charging current effect of capacitor C 1, required big electric current when coil La provides the A.C. contactor adhesive, after the charging of capacitor C 1 finishes, the little electric current holding circuit of forming by resistance R 3 capacitor C 2 make one-way SCR BT1 under little angle of flow triggering when coil La provides the A.C. contactor sticking the required little direct current of pulsation.After 3 groups of normally opened contact S1, S2 by the A.C. contactor adhesive of three-phase alternating-current supply Va, Vb, Vc, the S3 closure, M provides three-phase alternating-current supply to threephase motor, and threephase motor M gets electric work.When pressing stop button TA, A.C. contactor covers the position because of coil La outage, and 3 groups of normally opened contact S1, S2, S3 of A.C. contactor cover the position and are normally open, and threephase motor M dead electricity quits work.Thereby realize A.C. contactor with big electric current adhesive, the power save mode work of little electric current sticking has guaranteed the purpose of little power consumption operation of A.C. contactor.
Claims (9)
1, a kind of energy-saving alternating current contactor, it is to have increased the energy-saving control circuit of being made up of coil control circuit, big electric current attraction circuit and little electric current holding circuit in existing A.C. contactor, it is characterized in that:
Two inputs of the ac control power supply of existing ac contactor coil are replaced by A1, the A2 input of the ac control power supply of this energy-saving alternating current contactor;
Coil control circuit is made up of coil La, diode D2, the one-way SCR BT1 of A.C. contactor, diode D2 is in parallel with the two ends of coil La, the negative electrode of diode D2 is connected with the A1 input of ac control power supply, the anode of diode D2 is connected with the anode of one-way SCR BT1, and the negative electrode of one-way SCR BT1 is connected with the A2 input of ac control power supply;
Big electric current attraction circuit is made up of diode D1, resistance R 1, R2, capacitor C 1, end after being connected in parallel of resistance R 1 and capacitor C 1 is connected with an end of resistance R 2, the other end is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the A1 input of ac control power supply, and the other end of resistance R 2 is connected with the trigger electrode of one-way SCR BT1;
Little electric current holding circuit is made up of resistance R 3, capacitor C 2, one end of resistance R 3 is connected with an end of capacitor C 2, the trigger electrode of one-way SCR BT1 respectively, the other end of resistance R 3 is connected with the A1 input of ac control power supply, and the other end of capacitor C 2 is connected with the A2 input of ac control power supply:
2, a kind of energy-saving alternating current contactor according to claim 1 is characterized in that diode D1, capacitor C 1, the resistance R 1 in the described big electric current attraction circuit can be replaced by the 5th group of normally-closed contact S5 of A.C. contactor; The end of the 5th group of normally-closed contact S5 of A.C. contactor is connected with an end of resistance R 2, and the other end of normally-closed contact S5 is connected with the A1 input of ac control power supply;
3, a kind of energy-saving alternating current contactor according to claim 1 is characterized in that described energy-saving control circuit can be replaced by big electric capacity attraction circuit and little electric capacity holding circuit; Big electric capacity attraction circuit is made up of coil La, diode D2, D4, capacitor C 4, the resistance R 4 of A.C. contactor, diode D2 is in parallel with the two ends of coil La, the negative electrode of diode D2 is connected with the A1 input of ac control power supply, end after capacitor C 4 and resistance R 4 parallel connections is connected with the negative electrode of diode D4, the other end is connected with the A2 input of ac control power supply, and the anode of diode D4 is connected with the anode of diode D2; Little electric capacity holding circuit is made up of capacitor C 3, and an end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply;
4, a kind of energy-saving alternating current contactor according to claim 3 is characterized in that the capacitor C 4 in the described big electric capacity attraction circuit can be replaced by the 5th group of normally-closed contact S5 of A.C. contactor with resistance R 4; The end of the 5th group of normally-closed contact S5 of A.C. contactor is connected with the negative electrode of diode D4, and the other end of normally-closed contact S5 is connected with the A2 input of ac control power supply;
5, a kind of energy-saving alternating current contactor according to claim 1 is characterized in that described big electric current attraction circuit can be replaced by time-base integrated circuit 555 that is connected into monostable circuit and direct current regulation circuit; Direct current regulation circuit is made up of capacitor C 5, C6, resistance R 4, diode D5 and voltage-stabiliser tube Dw; Capacitor C 5 is in parallel with resistance R 4, one end of capacitor C 5 is connected with ac control power supply A1 input, the other end of capacitor C 5 links together with the anode of diode D5 and the negative electrode of voltage-stabiliser tube Dw respectively, the anode of voltage-stabiliser tube Dw is connected with the A2 input of ac control power supply, the negative pole of capacitor C 6 respectively, form common, the positive pole of capacitor C 6 is connected with the negative electrode of diode D5, forms the D.C. regulated power supply positive pole; Monostable circuit is made up of resistance R 5, capacitor C 8, diode D4 and time-base integrated circuit 555; The typical monostable circuit that resistance R 5, capacitor C 8 and time-base integrated circuit 555 are formed, one end of resistance R 5 is with after an end of capacitor C 8 is connected, be connected with reset terminal TH (high level resets) with the set end TR (low level set) of ic 555 respectively, another termination D.C. regulated power supply positive pole of resistance R 5, another termination common of capacitor C 8, the output OUT of time-base integrated circuit 555 is connected with the anode of diode D4, and the negative electrode of diode D4 is connected with the trigger electrode of one-way SCR BT1;
6, a kind of energy-saving alternating current contactor according to claim 5 is characterized in that described little electric current holding circuit can be replaced by the little electric capacity holding circuit that capacitor C 3 is formed; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply;
7, a kind of energy-saving alternating current contactor according to claim 1 is characterized in that described big electric current attraction circuit can be replaced by transistor delay circuit and the direct current regulation circuit that resistance R 6, R7, capacitor C 9, diode D4, D6 and transistor T 1 are formed; Direct current regulation circuit is made up of capacitor C 5, C6, resistance R 4, diode D5 and voltage-stabiliser tube Dw; Capacitor C 5 is in parallel with resistance R 4, one end of capacitor C 5 is connected with ac control power supply A1 input, the other end of capacitor C 5 links together with the anode of diode D5 and the negative electrode of voltage-stabiliser tube Dw respectively, the anode of voltage-stabiliser tube Dw is connected with the A2 input of ac control power supply, the negative pole of capacitor C 6 respectively, form common, the positive pole of capacitor C 6 is connected with the negative electrode of diode D5, forms the D.C. regulated power supply positive pole; The transistor delay circuit is by resistance R 6, R7, capacitor C 9, diode D4, D6 and transistor T 1 are formed, one end of resistance R 7 respectively with an end of capacitor C 9, the anode of diode D6 connects, the negative electrode of diode D6 is connected with the base stage of transistor T 1, another termination D.C. regulated power supply positive pole of resistance R 7, another termination common of capacitor C 9, the sending out of transistor T 1 thanked to the utmost point and to connect common, one termination D.C. regulated power supply positive pole of resistance R 6, the other end of resistance R 6 respectively with the collector electrode of transistor T 1, the anode of diode D4 connects, and the negative electrode of diode D4 is connected with the trigger electrode of one-way SCR BT1;
8, a kind of energy-saving alternating current contactor according to claim 7 is characterized in that described little electric current holding circuit can be replaced by the little electric capacity holding circuit that capacitor C 3 is formed; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply;
9, a kind of energy-saving alternating current contactor according to claim 1 is characterized in that described little electric current holding circuit can be replaced by the little electric capacity holding circuit that capacitor C 3 is formed; One end of capacitor C 3 is connected with the anode of diode D2, and the other end is connected with the A2 input of ac control power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215214 CN2465310Y (en) | 2001-02-19 | 2001-02-19 | Energy-saving ac contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215214 CN2465310Y (en) | 2001-02-19 | 2001-02-19 | Energy-saving ac contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465310Y true CN2465310Y (en) | 2001-12-12 |
Family
ID=33633830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01215214 Expired - Fee Related CN2465310Y (en) | 2001-02-19 | 2001-02-19 | Energy-saving ac contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465310Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064403A (en) * | 2013-03-22 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Control circuit for reducing power consumption of relay |
-
2001
- 2001-02-19 CN CN 01215214 patent/CN2465310Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064403A (en) * | 2013-03-22 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Control circuit for reducing power consumption of relay |
| CN104064403B (en) * | 2013-03-22 | 2016-05-04 | 海洋王（东莞）照明科技有限公司 | A kind of control circuit that reduces relay power consumption |
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