CN212627141U - Motor no-load short-time self-stop control circuit - Google Patents
Motor no-load short-time self-stop control circuit Download PDFInfo
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- CN212627141U CN212627141U CN202021655999.0U CN202021655999U CN212627141U CN 212627141 U CN212627141 U CN 212627141U CN 202021655999 U CN202021655999 U CN 202021655999U CN 212627141 U CN212627141 U CN 212627141U
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Abstract
When a motor M runs in no-load, the current value sensed by a current transformer HG becomes small, a pin 1 of an operational amplifier IC2 outputs low level, a pin 2 of an 8-pin time base integrated circuit IC3 receives a negative pulse, a pin 3 of an 8-pin time base integrated circuit IC3 outputs high level, a triode BG1 is conducted, the triode BG1 is conducted to enable a gate G of a bidirectional thyristor SCR1 to be low level and cut off, the motor M stops supplying power, and no power consumption in no-load is realized; after a period of time, the timing of the 8-pin time-base integrated circuit IC3 is ended, the 3 pin of the 8-pin time-base integrated circuit IC3 outputs low level, the triode BG1 is cut off, the gate G of the bidirectional thyristor SCR1 is conducted at high level, and the motor M works again; the utility model discloses can control motor M short time stall when no-load, practice thrift the electric energy.
Description
Technical Field
The utility model relates to a motor no-load short-time automatic stop control circuit belongs to motor energy-saving control technical field.
Background
The main function of the motor is to generate driving torque, and as a power source of electrical appliances or various machines, the following problems often occur when a plurality of motors are used: as long as the motor is started, the motor is always electrified and continuously rotated, and in the actual use process, the motor cannot be in full-load operation all the time, and the continuous operation can lead the utilization rate of the motor to be only 60-80 percent, thus causing a great deal of electric energy waste.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a motor no-load short-time automatic stop control circuit can control the motor short time stall when no-load, practices thrift the electric energy.
In order to achieve the above object, the utility model provides a motor unloaded short-time automatic stop control circuit, including resistance R1 ~ R3, electrolytic capacitor C1 ~ C2, electric capacity C3, electrolytic capacitor C4, electric capacity C5, diode D1, zener diode DW1, potentiometre RP1, triode BG1, bidirectional thyristor SCR1, current transformer HG, motor M, transformer B1, rectifier stack UR1, three-terminal regulator integrated circuit IC1, operational amplifier IC2, 8 foot time base integrated circuit IC 3;
the live wire L and the zero wire N are respectively connected with two ends of an input port of a transformer B1, two ends of an output port of the transformer B1 are respectively connected with a pin 1 and a pin 2 of a rectifier stack UR1, a pin 3 of the rectifier stack UR1 is respectively connected with a positive electrode of an electrolytic capacitor C1 and a pin 1 of a three-terminal voltage-stabilizing integrated circuit IC1, a pin 3 of the three-terminal voltage-stabilizing integrated circuit IC1 is respectively connected with a positive electrode of an electrolytic capacitor C2, one end of a resistor R2, an 8 pin of an operational amplifier IC2, a first fixed end of a potentiometer RP1, a sliding end of a potentiometer RP1, an 8 pin of an 8-pin time-base integrated circuit IC3, a pin 4 of an 8-pin time-base integrated circuit IC3 and one end of a resistor R3, a pin 2 of the three-terminal voltage-stabilizing integrated circuit IC1 and a negative electrode of an electrolytic capacitor C2 are all grounded;
a motor M is connected in series with a first anode T1 and a second anode T2 of a bidirectional thyristor SCR1 and then connected in parallel between a live line L and a zero line N, a current transformer HG is used for detecting the current at two ends of the motor M, one end of the current transformer HG is connected with the anode of a diode D1, the cathode of the diode D1 is respectively connected with one end of a resistor R1, one end of a capacitor C3 and the 3 pin of an operational amplifier IC2, the 2 pin of the operational amplifier IC2 is respectively connected with the other end of the resistor R2 and the cathode of a voltage stabilizing diode DW1, the 1 pin of the operational amplifier IC2 is connected with the 2 pin of an 8-pin time-base integrated circuit IC3, the 6 pin of the 8-pin time-base integrated circuit IC3 is respectively connected with the second fixed end of a potentiometer RP1, the 7 pin of the 8-pin time-base integrated circuit IC3 and the anode of an electrolytic capacitor C4, the 5 pin of the 8-pin time-base integrated circuit IC3 is connected with the base of, the collector of the triode BG1 is connected to the other end of the resistor R3 and the gate G of the triac SCR1, respectively, the other end of the current transformer HG, the other end of the resistor R1, the other end of the capacitor C3, the anode of the zener diode DW1, the pin 4 of the operational amplifier IC2, the cathode of the electrolytic capacitor C4, the pin 1 of the 8-pin time base integrated circuit IC3, the other end of the capacitor C5, and the emitter of the triode BG1 are all grounded.
As the further improvement of the utility model, the model of three-terminal regulator IC1 is 7805, and the model of operational amplifier IC2 is LM358, and 8 foot time base integrated circuit IC 3's model is NE 555.
As a further improvement of the utility model, the triode BG1 is an NPN tube type with a model number of 9013.
As a further improvement of the present invention, the diode D1 has a model number IN 4007.
As a further improvement of the present invention, the model of the triac SCR1 is BT 136.
As a further improvement of the utility model, the relay J1 is a DC relay with model number JRX-20F.
Compared with the prior art, the utility model discloses a resistance R1-R3, electrolytic capacitor C1-C2, electric capacity C3, electrolytic capacitor C4, electric capacity C5, diode D1, zener diode DW1, potentiometre RP1, triode BG1, bidirectional thyristor SCR1, current transformer HG, motor M, transformer B1, rectifier stack UR1, three-terminal regulator IC1, operational amplifier IC2, 8 foot time base integrated circuit IC3, when motor M no-load operation, the current value that current transformer HG sensed diminishes, operational amplifier IC2 1 foot output low level, 8 foot time base integrated circuit IC 3's 2 foot receives a negative pulse, 8 foot time base integrated circuit IC 3's 3 foot output high level, triode BG1 switches on, triode BG1 switches on and makes bidirectional thyristor SCR1 gate G for low level and end, motor M stops supplying power, realize not having no-load; after a period of time, the timing of the 8-pin time-base integrated circuit IC3 is ended, the 3 pin of the 8-pin time-base integrated circuit IC3 outputs low level, the triode BG1 is cut off, the gate G of the bidirectional thyristor SCR1 is conducted at high level, and the motor M works again; the utility model discloses can control motor M short time stall when no-load, practice thrift the electric energy.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the motor no-load short-time automatic stop control circuit comprises resistors R1-R3, electrolytic capacitors C1-C2, a capacitor C3, an electrolytic capacitor C4, a capacitor C5, a diode D1, a zener diode DW1, a potentiometer RP1, a triode BG1, a bidirectional thyristor SCR1, a current transformer HG, a motor M, a transformer B1, a rectifier stack UR1, a three-terminal voltage-stabilizing integrated circuit IC1, an operational amplifier IC2, and an 8-pin time-base integrated circuit IC 3; the model of the three-terminal voltage-stabilizing integrated circuit IC1 is 7805, the model of the operational amplifier IC2 is LM358, and the model of the 8-pin time-base integrated circuit IC3 is NE 555; the triode BG1 is an NPN tube type with a model number of 9013; the model of the diode D1 is IN 4007; the model number of the bidirectional thyristor SCR1 is BT 136; the relay J1 is a direct current relay with model number JRX-20F.
The live wire L and the zero wire N are respectively connected with two ends of an input port of a transformer B1, two ends of an output port of the transformer B1 are respectively connected with a pin 1 and a pin 2 of a rectifier stack UR1, a pin 3 of the rectifier stack UR1 is respectively connected with a positive electrode of an electrolytic capacitor C1 and a pin 1 of a three-terminal voltage-stabilizing integrated circuit IC1, a pin 3 of the three-terminal voltage-stabilizing integrated circuit IC1 is respectively connected with a positive electrode of an electrolytic capacitor C2, one end of a resistor R2, an 8 pin of an operational amplifier IC2, a first fixed end of a potentiometer RP1, a sliding end of a potentiometer RP1, an 8 pin of an 8-pin time-base integrated circuit IC3, a pin 4 of an 8-pin time-base integrated circuit IC3 and one end of a resistor R3, a pin 2 of the three-terminal voltage-stabilizing integrated circuit IC1 and a negative electrode of an electrolytic capacitor C2 are all grounded;
a motor M is connected in series with a first anode T1 and a second anode T2 of a bidirectional thyristor SCR1 and then connected in parallel between a live line L and a zero line N, a current transformer HG is used for detecting the current at two ends of the motor M, one end of the current transformer HG is connected with the anode of a diode D1, the cathode of the diode D1 is respectively connected with one end of a resistor R1, one end of a capacitor C3 and the 3 pin of an operational amplifier IC2, the 2 pin of the operational amplifier IC2 is respectively connected with the other end of the resistor R2 and the cathode of a voltage stabilizing diode DW1, the 1 pin of the operational amplifier IC2 is connected with the 2 pin of an 8-pin time-base integrated circuit IC3, the 6 pin of the 8-pin time-base integrated circuit IC3 is respectively connected with the second fixed end of a potentiometer RP1, the 7 pin of the 8-pin time-base integrated circuit IC3 and the anode of an electrolytic capacitor C4, the 5 pin of the 8-pin time-base integrated circuit IC3 is connected with the base of, the collector of the triode BG1 is connected to the other end of the resistor R3 and the gate G of the triac SCR1, respectively, the other end of the current transformer HG, the other end of the resistor R1, the other end of the capacitor C3, the anode of the zener diode DW1, the pin 4 of the operational amplifier IC2, the cathode of the electrolytic capacitor C4, the pin 1 of the 8-pin time base integrated circuit IC3, the other end of the capacitor C5, and the emitter of the triode BG1 are all grounded.
The resistance values of these elements in fig. 1 are well known and can be adjusted as required by those skilled in the art.
The working principle of the utility model is as follows: as shown in fig. 1, when the motor M normally operates in an on-load mode, a current value sensed by the current transformer HG is relatively large, and is sent to pin 3 of the operational amplifier IC2, and is compared with a reference voltage of pin 2 of the operational amplifier IC2, since the voltage of pin 3 of the operational amplifier IC2 is greater than the voltage of pin 2, pin 1 of the operational amplifier IC2 outputs a high level, pin 3 of the 8-pin time base integrated circuit IC3 outputs a low level, the triode BG1 is turned off, and the gate G of the triac SCR1 is turned on due to the high level, so that the motor M normally operates; if the motor M runs in no-load operation at the moment, the current value sensed by the current transformer HG is reduced, the voltage of the pin 3 of the operational amplifier IC2 is less than the voltage of the pin 2, the pin 1 of the operational amplifier IC2 outputs low level, the pin 2 of the 8-pin time base integrated circuit IC3 receives a negative pulse, the pin 3 of the 8-pin time base integrated circuit IC3 outputs high level, the triode BG1 is conducted, the triode BG1 is conducted, the gate G of the bidirectional thyristor SCR1 is cut off due to low level, the motor M stops supplying power, and no-load and no-power consumption are realized; after a period of time, the 8-pin time base integrated circuit IC3 is timed to end, the 3 pin of the 8-pin time base integrated circuit IC3 outputs low level, the triode BG1 is cut off, the gate G of the triac SCR1 is turned on for high level, and the motor M resumes operation (generally, the motor M runs for about one minute under inertia, and then the motor M is restarted, so that the starting current is not very large, and the motor M is not greatly affected).
Claims (6)
1. A motor no-load short-time automatic stop control circuit is characterized by comprising resistors R1-R3, electrolytic capacitors C1-C2, a capacitor C3, an electrolytic capacitor C4, a capacitor C5, a diode D1, a voltage stabilizing diode DW1, a potentiometer RP1, a triode BG1, a bidirectional thyristor SCR1, a current transformer HG, a motor M, a transformer B1, a rectifier stack UR1, a three-terminal voltage stabilizing integrated circuit IC1, an operational amplifier IC2 and an 8-pin time base integrated circuit IC 3;
the live wire L and the zero wire N are respectively connected with two ends of an input port of a transformer B1, two ends of an output port of the transformer B1 are respectively connected with a pin 1 and a pin 2 of a rectifier stack UR1, a pin 3 of the rectifier stack UR1 is respectively connected with a positive electrode of an electrolytic capacitor C1 and a pin 1 of a three-terminal voltage-stabilizing integrated circuit IC1, a pin 3 of the three-terminal voltage-stabilizing integrated circuit IC1 is respectively connected with a positive electrode of an electrolytic capacitor C2, one end of a resistor R2, an 8 pin of an operational amplifier IC2, a first fixed end of a potentiometer RP1, a sliding end of a potentiometer RP1, an 8 pin of an 8-pin time-base integrated circuit IC3, a pin 4 of an 8-pin time-base integrated circuit IC3 and one end of a resistor R3, a pin 2 of the three-terminal voltage-stabilizing integrated circuit IC1 and a negative electrode of an electrolytic capacitor C2 are all grounded;
a motor M is connected in series with a first anode T1 and a second anode T2 of a bidirectional thyristor SCR1 and then connected in parallel between a live line L and a zero line N, a current transformer HG is used for detecting the current at two ends of the motor M, one end of the current transformer HG is connected with the anode of a diode D1, the cathode of the diode D1 is respectively connected with one end of a resistor R1, one end of a capacitor C3 and the 3 pin of an operational amplifier IC2, the 2 pin of the operational amplifier IC2 is respectively connected with the other end of the resistor R2 and the cathode of a voltage stabilizing diode DW1, the 1 pin of the operational amplifier IC2 is connected with the 2 pin of an 8-pin time-base integrated circuit IC3, the 6 pin of the 8-pin time-base integrated circuit IC3 is respectively connected with the second fixed end of a potentiometer RP1, the 7 pin of the 8-pin time-base integrated circuit IC3 and the anode of an electrolytic capacitor C4, the 5 pin of the 8-pin time-base integrated circuit IC3 is connected with the base of, the collector of the triode BG1 is connected to the other end of the resistor R3 and the gate G of the triac SCR1, respectively, the other end of the current transformer HG, the other end of the resistor R1, the other end of the capacitor C3, the anode of the zener diode DW1, the pin 4 of the operational amplifier IC2, the cathode of the electrolytic capacitor C4, the pin 1 of the 8-pin time base integrated circuit IC3, the other end of the capacitor C5, and the emitter of the triode BG1 are all grounded.
2. The motor no-load short-time automatic stop control circuit of claim 1, wherein the model of the three-terminal voltage-stabilizing integrated circuit IC1 is 7805, the model of the operational amplifier IC2 is LM358, and the model of the 8-pin time-base integrated circuit IC3 is NE 555.
3. The motor no-load short-time automatic stop control circuit of claim 1, wherein the transistor BG1 is NPN type, model number 9013.
4. The motor no-load short-time self-stop control circuit of claim 1, wherein the model of the diode D1 is IN 4007.
5. The motor no-load short-time self-stop control circuit as claimed in claim 1, wherein the triac SCR1 is model number BT 136.
6. The motor no-load short-time self-stop control circuit as claimed in claim 1, wherein the relay J1 is a DC relay with model number JRX-20F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655999.0U CN212627141U (en) | 2020-08-11 | 2020-08-11 | Motor no-load short-time self-stop control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655999.0U CN212627141U (en) | 2020-08-11 | 2020-08-11 | Motor no-load short-time self-stop control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN212627141U true CN212627141U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021655999.0U Active CN212627141U (en) | 2020-08-11 | 2020-08-11 | Motor no-load short-time self-stop control circuit |
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| CN (1) | CN212627141U (en) |
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- 2020-08-11 CN CN202021655999.0U patent/CN212627141U/en active Active
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Effective date of registration: 20230811 Address after: 221600 Hu Lou Industrial Park, Peixian, Xuzhou, Jiangsu Patentee after: Xuzhou Peiwu Machinery Co.,Ltd. Address before: No. 1 Xiangwang Road, Drum Tower District, Xuzhou, Jiangsu Patentee before: XUZHOU College OF INDUSTRIAL TECHNOLOGY |