CN215731496U - Energy-saving intelligent alternating current contactor coil control circuit - Google Patents
Energy-saving intelligent alternating current contactor coil control circuit Download PDFInfo
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- CN215731496U CN215731496U CN202120804034.1U CN202120804034U CN215731496U CN 215731496 U CN215731496 U CN 215731496U CN 202120804034 U CN202120804034 U CN 202120804034U CN 215731496 U CN215731496 U CN 215731496U
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Abstract
The utility model discloses an energy-saving intelligent alternating current contactor coil control circuit, which belongs to the technical field of contactors and comprises a rectifying filter circuit, a voltage conversion circuit connected with the rectifying filter circuit, a microcomputer control circuit connected with the voltage conversion circuit, a load output circuit connected with the microcomputer control circuit and a communication circuit connected with the microcomputer control circuit.
Description
Technical Field
The utility model belongs to the technical field of contactors, and particularly relates to a coil control circuit of an energy-saving intelligent alternating current contactor.
Background
With the continuous promotion of the innovation of the electric power system in China, the development of the electric equipment and the electric power industry in China is rapid at present, and the scale and the power generation capacity of a power grid are listed as the first in the world; the urban and rural power utilization same-network price is realized, the power utilization problem of people without power is solved, a diversified power market system is formed, and the electric appliance is an important basic element with large quantity and wide range in a power grid. The intelligent power grid construction brings opportunities for the development of intelligent electrical appliances, the intellectualization of the power grid is closely related to the intellectualization of a switching electrical appliance, an alternating current contactor is a switching electrical appliance with a large quantity and wide range, the alternating current contactor is mainly used for frequently switching on or switching off an alternating current main circuit and can be remotely controlled, most of the existing alternating current contactors have high energy consumption, the temperature control index of the contactor is increased, potential safety hazards are brought, the service performance of the contactor is reduced, and a new contactor control circuit needs to be developed to solve the existing problems.
Disclosure of Invention
The utility model aims to provide an energy-saving intelligent alternating current contactor coil control circuit to solve the problem that the coil energy consumption is high due to the fact that the control circuit in the existing contactor cannot be automatically adjusted.
In order to achieve the purpose, the utility model provides the following technical scheme: an energy-saving intelligent AC contactor coil control circuit comprises a rectifying and filtering circuit for rectifying and filtering AC energy into DC energy, a voltage conversion circuit connected with the rectifying and filtering circuit and used for converting DC energy voltage, a microcomputer control circuit for sending an execution signal to the voltage conversion circuit, a load output circuit connected with the microcomputer control circuit and used for outputting the converted voltage, and a communication circuit for sending a communication signal to the microcomputer control circuit.
Preferably, the rectifier filter circuit comprises a rectifier diode D1, a ferrite core inductor L1 with one pin connected to the rectifier diode D1, a capacitor C3 and a capacitor C4 connected to two sides of the ferrite core inductor L1; the other pin of the inductance coil with iron core L1 is connected to the voltage conversion circuit.
Preferably, pins D11 and D13 of the rectifier diode D1 are connected to a positive electrode circuit and a negative electrode circuit, and a thermistor is connected to the positive electrode circuit and the negative electrode circuit;
a pin D12 of the rectifier diode D1 is connected with a pin of an inductance coil L1 with an iron core, two sides of the inductance coil L1 with the iron core are respectively connected with a pin of a capacitor C3 and a pin of a capacitor C4, the other pins of the capacitor C3 and the capacitor C4 are both connected with a pin D13 of the rectifier diode D1, and the other pin of the inductance coil L1 with the iron core is connected with a voltage conversion circuit.
Preferably, the voltage conversion circuit comprises a power integrated chip U1, a voltage regulator U2 connected to the power integrated chip U1, and a power module BT1 connected to the voltage regulator U2.
Preferably, the microcomputer control circuit comprises an integrated circuit U6, and the integrated circuit U6 is respectively connected with the communication circuit, the voltage conversion circuit and the load output circuit.
Preferably, the load output circuit comprises a transistor V1, a field effect transistor V2 connected with a transistor V1, and a coil T1 connected with a field effect transistor V2;
the triode V1 is connected with the microcomputer control circuit.
Preferably, the communication circuit is an RS485 communication circuit.
The utility model has the technical effects and advantages that: the coil control circuit of the energy-saving intelligent alternating current contactor has the advantages of simple structure and low energy consumption, solves the potential safety hazard caused by overhigh temperature of the contactor, simultaneously realizes intelligent energy consumption management through the microcomputer control circuit, and achieves the effects of energy conservation and emission reduction.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
FIG. 2 is a circuit diagram of a rectifying and filtering circuit;
FIG. 3 is a circuit diagram of a communication circuit;
FIG. 4 is a circuit diagram of a microcomputer;
fig. 5 is a load output circuit diagram.
In the figure: 1. a rectification filter circuit; 2. a voltage conversion circuit; 3. a communication circuit; 4. a microcomputer control circuit; 5. and a load output circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an energy-saving intelligent alternating current contactor coil control circuit as shown in figures 1-5, which comprises a rectification filter circuit 1 for rectifying and filtering alternating current electric energy into direct current electric energy, a voltage conversion circuit 2 connected with the rectification filter circuit 1 and used for converting direct current electric energy voltage, a microcomputer control circuit 4 for sending an execution signal to the voltage conversion circuit 2, a load output circuit 5 connected with the microcomputer control circuit 4 and used for outputting the converted voltage, and a communication circuit 3 for sending a communication signal to the microcomputer control circuit 4;
the rectifying and filtering circuit 1 comprises a bridge rectifier diode D1, an iron core-equipped inductance coil L1 with a pin connected to the bridge rectifier diode D1, and a capacitor C3 and a capacitor C4 which are connected to two sides of the iron core-equipped inductance coil L1; the other pin of the inductance coil with iron core L1 is connected to the voltage conversion circuit 2. Pins D11 and D13 of the bridge rectifier diode D1 are connected with a positive electrode circuit and a negative electrode circuit, and the positive electrode circuit and the negative electrode circuit are connected with a thermistor;
a pin D12 of the rectifier diode D1 is connected with a pin of an inductance coil L1 with an iron core, two sides of the inductance coil L1 with the iron core are respectively connected with a pin of a capacitor C3 and a pin of a capacitor C4, the other pins of the capacitor C3 and the capacitor C4 are both connected with a pin D13 of the bridge rectifier diode D1, and the other pin of the inductance coil L1 with the iron core is connected with the voltage conversion circuit 2;
the voltage conversion circuit 2 comprises a power supply integrated chip U1, a three-terminal integrated voltage regulator U2 connected with the power supply integrated chip U1, and a power supply module BT1 connected with the three-terminal integrated voltage regulator U2. Four DRAIN pins of the power supply integrated chip U1 are connected with an inductance coil L1 with an iron core; in this embodiment, the power integrated chip U1 is of model number XD 308H; the model of the three-terminal integrated voltage stabilizer U2 is 78L 05;
a VDD pin of a power integrated chip U1 is connected with one pin of resistors R2, C1 and D2, the other pin of the resistor R2 is connected with a resistor R3 and a resistor R4 in series and then connected to a CS pin of the power integrated chip U1, and an FB pin of the power integrated chip U1 is connected with a circuit between the resistor R2 and the resistor R3; the other pin of the capacitor C1 is connected with a diode D3 in series and then is connected to a circuit of a pin D14 of a bridge rectifier diode D1;
the GND pin of the power supply integrated chip U1 is connected with one pin of the iron core-containing inductance coil L2, and the GND pin of the power supply integrated chip U1 is also connected with circuits between a resistor R3 and a resistor R4, and between a capacitor C1 and a diode D3;
the other pin of the diode D2 is connected in series with the capacitor C5 and then is connected with a pin D14 circuit of the bridge rectifier diode D1;
the other pin of the inductance coil with the iron core L2 is connected with an IN pin of a three-terminal integrated voltage stabilizer U2, and the IN pin of the three-terminal integrated voltage stabilizer U2 is also connected with a circuit between a diode D2 and a capacitor C5;
the IN pin of the three-terminal integrated voltage regulator U2 is also connected with one pin of a resistor R5, and the other pin of the resistor R5 is connected with a D14 pin circuit of a bridge rectifier diode D1;
a GND pin of the three-terminal integrated voltage regulator U2 is connected with a D14 pin circuit of a bridge rectifier diode D1;
an OUT pin of the three-terminal integrated voltage stabilizer U2 is connected with one pin of a capacitor C2, the other pin of the capacitor C2 is connected with a D14 pin circuit of a bridge rectifier diode D1, a grounding end is arranged in the circuit, the OUT pin of the three-terminal integrated voltage stabilizer U2 is connected with a VIN pin of an isolation power supply module BT1, and a VCC electrode is arranged on the OUT pin circuit of the three-terminal integrated voltage stabilizer U2;
the GND pin of the isolation power supply module BT1 is connected to the D14 pin of the bridge rectifier diode D1, and the VOUT pin of the isolation power supply module BT1 is connected to the communication circuit 3, in this embodiment, the model of the isolation power supply module BT1 is B0505S;
the microcomputer control circuit 4 comprises an integrated circuit U6, and the integrated circuit U6 is respectively connected with the communication circuit 3, the voltage conversion circuit 2 and the load output circuit 5. The RXD pin of the integrated circuit U6 is respectively connected with the communication circuit 3 and one pin of the resistor R15, the other pin of the resistor R15 is connected with the VCC electrode of the voltage conversion circuit 2, the TXD pin of the integrated circuit U6 is connected with the communication circuit 3, and the TXD pin of the integrated circuit U6 is connected with the resistor R13 and then connected with the VCC electrode;
pins of INT0 and INT1 of the integrated circuit U6 are respectively connected with one ends of a key switch S1 and a key switch S2, and the other ends of the key switch S1 and the key switch S2 are connected with each other and then connected with a GND pin of the integrated circuit U6, and a grounding end is arranged on the circuit of the integrated circuit U6;
pins of P1.6, P1.5, P1.4, P1.3 and P1.2 of an integrated circuit U6 are respectively connected with one pin of a resistor R19, a resistor R20, a resistor R21, a resistor R22 and a resistor R23, the other pins of the resistor R19, the resistor R20, the resistor R21, the resistor R22 and the resistor R23 are respectively connected with a VDD pin of the integrated circuit U6, and the other pin of the R21 is also connected with a VCC electrode; the integrated circuit U6 is internally provided with an MCU, a function setting module and a PWM control module;
the pin of the PWM of the integrated circuit U6 is connected to one pin of the resistor R11, and the other pin of the R11 is connected to the load output circuit 5, in this embodiment, the model of the integrated circuit U6 is SH79F 084A.
The load output circuit 5 comprises a triode V1, a field effect transistor V2 connected with a triode V1, and a coil T1 connected with a field effect transistor V2;
the triode V1 is connected with the microcomputer control circuit 4. The V1B pin of the triode V1 is connected with a resistor R11 of the microcomputer control circuit 4, and the pin V1B of the transistor V1 is connected with one pin of the resistor R24, the other pin of the resistor R24 is connected with the pin V1E of the transistor V1, a pin V1C of the triode V1 is connected with one pin of a resistor R6, the other pin of the resistor R6 is respectively connected with one pin of a capacitor C6, a diode D12 and a coil T1, the other pin of the capacitor C6 and the other pin of the diode D12 are respectively connected with the other pin of the coil T1, the other pin of the coil T1 is also connected with the first pin of V2, the second pin of the field effect transistor V2 is connected with the pin V1C of V1, and a third pin of the field effect transistor V2 is connected with one pin of the resistor R18, a ground terminal is arranged on the third pin, and the other pin of the resistor R18 is connected with a pin V1E of the triode.
The working principle is as follows: the energy-saving intelligent alternating current contactor coil control circuit comprises a rectifying and filtering circuit 1, a voltage conversion circuit 2, a load output circuit 5, a micro-computer control circuit 4 and a power supply module, wherein alternating current electric energy is rectified and filtered into direct current electric energy by the rectifying and filtering circuit 1, the direct current electric energy is transmitted to the voltage conversion circuit 2 for converting voltage, the input voltage of the rectifying and filtering circuit 1 is transmitted to the load output circuit 5 after being converted by the voltage conversion circuit 2, an MCU module and a PWM control module are arranged in the micro-computer control circuit 4 and provide function setting, the micro-computer control circuit 4 sends an execution signal to the voltage conversion circuit 2 through the PWM control module according to preset conditions, the voltage output of the load output circuit 5 is changed by the voltage conversion circuit 2, and therefore power consumption is reduced, and a worker carries out data interaction at a communication circuit 3 of the micro-computer control circuit 4.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an energy-saving intelligent AC contactor coil control circuit which characterized in that: the direct current electric energy voltage conversion device comprises a rectification filter circuit (1) for rectifying and filtering alternating current electric energy into direct current electric energy, a voltage conversion circuit (2) connected with the rectification filter circuit (1) and used for converting direct current electric energy voltage, a microcomputer control circuit (4) for sending an execution signal to the voltage conversion circuit (2), a load output circuit (5) connected with the microcomputer control circuit (4) and used for outputting converted voltage, and a communication circuit (3) for sending a communication signal to the microcomputer control circuit (4).
2. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 1, characterized in that: the rectifying and filtering circuit (1) comprises a rectifying diode D1, an iron core-contained inductance coil L1 with one pin connected to the rectifying diode D1, a capacitor C3 and a capacitor C4, wherein the capacitor C3 and the capacitor C4 are connected to two sides of the iron core-contained inductance coil L1; the other pin of the inductance coil with iron core L1 is connected to the voltage conversion circuit (2).
3. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 2, characterized in that: pins D11 and D13 of the rectifier diode D1 are connected with a positive electrode circuit and a negative electrode circuit, and the positive electrode circuit and the negative electrode circuit are connected with a thermistor;
a pin D12 of the rectifier diode D1 is connected with a pin of an inductance coil L1 with an iron core, two sides of the inductance coil L1 with the iron core are respectively connected with a pin of a capacitor C3 and a pin of a capacitor C4, the other pins of the capacitor C3 and the capacitor C4 are both connected with a pin D13 of the rectifier diode D1, and the other pin of the inductance coil L1 with the iron core is connected with a voltage conversion circuit (2).
4. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 2, characterized in that: the voltage conversion circuit (2) comprises a power supply integrated chip U1 connected with the output end of the inductance coil L1 with the iron core, a voltage stabilizer U2 connected with the power supply integrated chip U1, and a power supply module BT1 connected with the voltage stabilizer U2.
5. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 1, characterized in that: the microcomputer control circuit (4) comprises an integrated circuit U6, and the integrated circuit U6 is respectively connected with the communication circuit (3), the voltage conversion circuit (2) and the load output circuit (5).
6. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 1, characterized in that: the load output circuit (5) comprises a triode V1 connected with the output end of the microcomputer control circuit (4), a field effect transistor V2 connected with the triode V1, and a coil T1 connected with the field effect transistor V2;
the triode V1 is connected with the microcomputer control circuit (4).
7. The coil control circuit of the energy-saving intelligent alternating current contactor as claimed in claim 1, characterized in that: the communication circuit (3) is an RS485 communication circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804034.1U CN215731496U (en) | 2021-04-20 | 2021-04-20 | Energy-saving intelligent alternating current contactor coil control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804034.1U CN215731496U (en) | 2021-04-20 | 2021-04-20 | Energy-saving intelligent alternating current contactor coil control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215731496U true CN215731496U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120804034.1U Active CN215731496U (en) | 2021-04-20 | 2021-04-20 | Energy-saving intelligent alternating current contactor coil control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215731496U (en) |
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2021
- 2021-04-20 CN CN202120804034.1U patent/CN215731496U/en active Active
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