CN217036837U - Circuit of intelligent three-phase timer - Google Patents
Circuit of intelligent three-phase timer Download PDFInfo
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- CN217036837U CN217036837U CN202220661712.8U CN202220661712U CN217036837U CN 217036837 U CN217036837 U CN 217036837U CN 202220661712 U CN202220661712 U CN 202220661712U CN 217036837 U CN217036837 U CN 217036837U
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Abstract
The application provides circuit of intelligence three-phase timer includes: the power supply circuit comprises a power supply circuit, a driving chip, a relay circuit, a metering circuit, an MCU chip circuit and a communication data processing module, wherein the communication data processing module is connected with the MCU chip circuit and used for remote communication, data processing and signal output to the MCU chip circuit, the output end of the MCU chip circuit is connected with the driving chip, the output end of the driving chip is connected with the relay circuit, the driving chip is used for controlling the work and the non-work of a relay of the relay circuit, the relay circuit is connected with the metering circuit and three-phase external equipment, the relay circuit is used for controlling the on-off of the three-phase external equipment, the metering circuit is used for collecting electric quantity, one or more relays in the relay circuit are connected with the metering circuit, and one relay is connected with one metering circuit and used for collecting the electric quantity of each path respectively.
Description
Technical Field
The utility model relates to the field of timers, in particular to a circuit of an intelligent three-phase timer.
Background
The timer has wide use scenes and is generally applied to daily life of people, and the function of the timer capable of being turned on/off at fixed time can meet different scenes. In the application of three-phase high-power electric appliances, the most common is a mechanical switch, the operation of the mechanical switch is inconvenient and not intelligent, a large number of mechanical switches are needed, and the price of the mechanical switches is high. The traditional automatic timer is small in capacity, cannot be suitable for a three-phase power supply, does not have the limitation of operation display and various protective measures, does not have the requirement of temporary operation load, and provides a convenient scheme of temporary operation. Meanwhile, in the application of three-phase high-power electrical appliances, a common timer only has the on-off function, but in practical application, the electric quantity of each path also needs to be known, which cannot be realized by the existing timer.
In view of this, the utility model provides a circuit of an intelligent three-phase timer, which is applied to a three-phase high-power electrical appliance, can be controlled remotely and intelligently, and can collect electric quantity of each path respectively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a circuit of an intelligent three-phase timer, which is applied to a three-phase high-power electric appliance, can be remotely and intelligently controlled and can respectively collect electric quantity of each path.
A circuit of an intelligent three-phase timer, comprising: the power circuit is connected with the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module, the communication data processing module is connected with the MCU chip circuit and used for remote communication, data processing and outputting signals to the MCU chip circuit, the output end of the MCU chip circuit is connected with the driving chip, the output end of the driving chip is connected with the relay circuit, the driving chip is used for controlling the work and the non-work of a relay of the relay circuit, the relay circuit is connected with the metering circuit and a three-phase external device, the relay circuit is used for controlling the on-off of the three-phase external device, the metering circuit is used for collecting electric quantity, one or more relays in the relay circuit are connected with the metering circuit, and one relay is connected with one metering circuit and is used for respectively collecting the electric quantity of each path.
In some embodiments, the communication data processing module is used for sending and receiving telecommunication signals, processing the telecommunication signals and remotely and intelligently controlling the three-phase timer; the telecommunication signal includes: wifi, Bluetooth, Zigbee, RFID, LIFI, Z-wave, UWB, EnOcean signal.
Furthermore, the input end of the communication data processing module is connected with a manual switch, and the manual switch is used for manually controlling the three-phase timer. And the manual switch is pressed down to send a pulse signal to the communication data processing module, and the communication data processing module sends a signal to the MCU chip circuit to control the work or the non-work of a relay of the relay circuit.
Furthermore, the communication data processing module is further connected with a reset circuit, a clock circuit and an indicator light circuit, the reset circuit is used for resetting the communication data processing module, the clock circuit is used for providing a clock signal for the communication data processing module when the network is disconnected, and the indicator light circuit is used for displaying the working state of the relay.
Further, the reset circuit includes: the device comprises a resistor R1 and a capacitor C17, wherein one end of the capacitor C17 is connected with the resistor R17 and the communication data processing module, the other end of the capacitor C17 is grounded, and the other end of the resistor R1 is connected with the communication data processing module. The clock circuit includes: the chip U6, electric capacity CT1, electric capacity CT2, crystal oscillator X1, resistance RT1, electric capacity CT 2's one end is connected with 1 foot of chip U6, the other end ground connection, electric capacity CT 1's one end is connected with 2 feet of chip U6, the other end ground connection, crystal oscillator X1's both ends are connected with electric capacity CT1 and electric capacity CT2 respectively, resistance RT1 is connected with 5 feet and 6 feet of chip U6. The indicator light circuit includes: resistance R15, pilot lamp LED1 and pilot lamp LED3, pilot lamp LED1 and pilot lamp LED3 one end are connected with communication data processing module, the other end is connected with resistance R15, communication data processing module signal control relay work then pilot lamp LED1 and pilot lamp LED3 light, communication data processing module signal control relay out of work then pilot lamp LED1 and pilot lamp LED3 do not light.
In some embodiments, the MCU chip circuit is configured to perform data processing on a signal input by the communication data processing module, and the MCU chip circuit is capable of releasing part of functions of the communication data processing module and avoiding errors.
In some embodiments, a conversion circuit is connected between the communication data processing module and the MCU chip circuit, the operating voltage of the communication data processing module is lower than the operating voltage of the MCU chip circuit, and the conversion circuit is used for level conversion.
Further, the conversion circuit includes: the triode Q1, the triode Q2, the triode Q3 and the resistor R30, wherein the collector electrodes of the triode Q1, the triode Q2 and the triode Q3 are respectively connected with an MCU chip U2 of the MCU chip circuit, the emitter electrodes are respectively grounded, and the base electrodes are respectively connected with the resistor R30.
In some embodiments, the driving chip is in circuit connection with the MCU chip through an interface, the driving chip is respectively connected with three relays, the driving chip is used to control the three relays to work or not work at the same time, and the three relays are respectively connected with the connection port a, the connection port B, and the connection port C of the three-phase port.
Further, the output end of the driving chip U5 is connected with the relay K1, the relay K2 and the relay K3, respectively, if only one relay is connected with the metering circuit, the metering circuit is a first metering circuit, and the electric quantity of one path (one phase) of the three phases is detected; if two relays are connected with the metering circuit, the two relays are respectively connected with the first metering circuit and the second metering circuit, and the electric quantity of two paths (two phases) in the three phases is respectively detected; if three relays are connected with the metering circuit, the three relays are respectively connected with the first metering circuit, the second metering circuit and the third metering circuit to respectively detect the electric quantity of three paths (three phases) in the three phases.
In some embodiments, the power circuit is used for providing the stepped-down direct current for the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module.
Furthermore, the power supply circuit provides 27V direct current for the driving chip and the relay circuit, the power supply circuit provides 5V direct current for the metering circuit and the MCU chip circuit, and the power supply circuit provides 3.3V direct current for the communication data processing module.
Further, the input end of the power circuit is connected with the mains supply, and the power circuit comprises: bridge rectifier diode, filter circuit, step-down control circuit, transformer and step-down chip circuit, bridge rectifier diode's output and filter circuit are connected, bridge rectifier diode is used for converting the alternating current into the direct current, step-down control circuit is connected with the input of transformer, step-down control circuit is used for controlling the transformer, the transformer is used for reducing voltage to direct current output, the output and the step-down chip circuit of transformer are connected, step-down chip circuit is used for stepping down 27V direct current to 5V direct current output.
Drawings
Fig. 1 is a circuit diagram of a communication data processing module, a manual switch and a reset circuit of the intelligent three-phase timer according to the present application.
Fig. 2 is a circuit diagram of an indicator light circuit and a clock circuit of a circuit of an intelligent three-phase timer according to the present application.
Fig. 3 is a circuit diagram of an MCU chip circuit and a conversion circuit of the intelligent three-phase timer of the present application.
Fig. 4 is a circuit diagram of a driving chip and a relay circuit of a circuit of an intelligent three-phase timer according to embodiment 1 of the present application.
Fig. 5 is a circuit diagram of a first metering circuit of the intelligent three-phase timer according to embodiment 1 of the present application.
Fig. 6 is a circuit diagram of a driving chip and a relay circuit of a circuit of an intelligent three-phase timer according to embodiment 2 of the present application.
Fig. 7 is a circuit diagram of a first metering circuit and a second metering circuit of a circuit of an intelligent three-phase timer according to embodiment 2 of the present application.
The drawings are described in detail below with reference to specific embodiments.
Detailed Description
The following examples are described to aid in the understanding of the present application and are not, and should not be, construed to limit the scope of the present application in any way.
In the following description, those skilled in the art will recognize that components may be described throughout this discussion as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including being integrated within a single system or component).
Also, connections between components or systems are not intended to be limited to direct connections, but rather data between components may be modified, reformatted, or otherwise altered by intermediary components. Additionally, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.
Example 1:
a circuit of an intelligent three-phase timer, as shown in fig. 1-5, comprising: the power circuit is connected with the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module, the communication data processing module is connected with the MCU chip circuit and used for remote communication, data processing and outputting signals to the MCU chip circuit, the output end of the MCU chip circuit is connected with the driving chip, the output end of the driving chip is connected with the relay circuit, the driving chip is used for controlling the work and the non-work of a relay of the relay circuit, the relay circuit is connected with the metering circuit and a three-phase external device, the relay circuit is used for controlling the on-off of the three-phase external device, the metering circuit is used for collecting electric quantity, one or more relays in the relay circuit are connected with the metering circuit, and one relay is connected with one metering circuit and is used for respectively collecting the electric quantity of each path.
The communication data processing module is used for sending and receiving remote communication signals, processing the remote communication signals and remotely and intelligently controlling the three-phase timer. The remote communication signal is a wifi signal. The input end of the communication data processing module is connected with a manual switch, and the three-phase timer is manually controlled. And the manual switch is pressed down to send a pulse signal to the communication data processing module, and the communication data processing module sends a signal to the MCU chip circuit to control the work or the non-work of a relay of the relay circuit. The communication data processing module is further connected with a reset circuit, a clock circuit and an indicator light circuit, the reset circuit is used for resetting the communication data processing module, the clock circuit is used for providing clock signals for the communication data processing module when a network is disconnected, and the indicator light circuit is used for displaying the working state of the relay. The reset circuit includes: the device comprises a resistor R1 and a capacitor C17, wherein one end of the capacitor C17 is connected with the resistor R17 and the communication data processing module, the other end of the capacitor C17 is grounded, and the other end of the resistor R1 is connected with the communication data processing module. The clock circuit includes: the chip U6, electric capacity CT1, electric capacity CT2, crystal oscillator X1, resistance RT1, electric capacity CT 2's one end is connected with 1 foot of chip U6, the other end ground connection, electric capacity CT 1's one end is connected with 2 feet of chip U6, the other end ground connection, crystal oscillator X1's both ends are connected with electric capacity CT1 and electric capacity CT2 respectively, resistance RT1 is connected with 5 feet and 6 feet of chip U6. The indicator light circuit includes: resistance R15, pilot lamp LED1 and pilot lamp LED3, pilot lamp LED1 and pilot lamp LED3 one end are connected with communication data processing module, the other end is connected with resistance R15, communication data processing module signal control relay work then pilot lamp LED1 and pilot lamp LED3 light, communication data processing module signal control relay out of work then pilot lamp LED1 and pilot lamp LED3 do not light.
The MCU chip circuit is used for carrying out data processing on signals input by the communication data processing module, can release partial functions of the communication data processing module and avoids errors. A conversion circuit is connected between the communication data processing module and the MCU chip circuit, the working voltage of the communication data processing module is lower than that of the MCU chip circuit, and the conversion circuit is used for level conversion. The conversion circuit includes: the triode Q1, the triode Q2, the triode Q3 and the resistor R30, wherein the collector electrodes of the triode Q1, the triode Q2 and the triode Q3 are respectively connected with an MCU chip U2 of the MCU chip circuit, the emitter electrodes are respectively grounded, and the base electrodes are respectively connected with the resistor R30.
The driving chip is in circuit connection with the MCU chip through an interface, the driving chip is respectively connected with the three relays, the driving chip is used for controlling the three relays to work or not work simultaneously, and the three relays are respectively connected with the wiring port A, the wiring port B and the wiring port C of the three-phase port. The output end of the driving chip U5 is respectively connected with the relay K1, the relay K2 and the relay K3, and the relay K1 is connected with the first metering circuit to detect the electric quantity of one path (one phase) in three phases. The first metering circuit includes: the device comprises a resistor RS1, a resistor RS2, a resistor RS3, a capacitor CS1, a capacitor CS2 and a metering chip U3; the resistor RS1, the resistor RS2, the resistor RS3, the capacitor CS1 and the capacitor CS2 are used for testing current, and the metering chip U3 is used for detecting electric quantity; one end of the capacitor CS1 is grounded, the other end of the capacitor CS1 is connected with one end of the metering chip U3 and one end of the resistor RS2, one end of the capacitor CS2 is grounded, the other end of the capacitor CS2 is connected with one end of the metering chip U3 and one end of the resistor RS3, one end of the resistor RS1 is connected with the resistor RS2, and the other end of the resistor RS2 is connected with the resistor RS 3.
The power supply circuit is used for providing direct current after voltage reduction for the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module. The power supply circuit provides 27V direct current for the driving chip and the relay circuit, the power supply circuit provides 5V direct current for the metering circuit and the MCU chip circuit, and the power supply circuit provides 3.3V direct current for the communication data processing module. The input of power supply circuit is connected with the commercial power, and power supply circuit includes: bridge rectifier diode, filter circuit, step-down control circuit, transformer and step-down chip circuit, bridge rectifier diode's output and filter circuit are connected, bridge rectifier diode is used for converting the alternating current into the direct current, step-down control circuit is connected with the input of transformer, step-down control circuit is used for controlling the transformer, the transformer is used for reducing voltage to direct current output, the output and the step-down chip circuit of transformer are connected, step-down chip circuit is used for stepping down 27V direct current into 5V direct current output.
Example 2:
a circuit of an intelligent three-phase timer, as shown in fig. 1-3, 6-7, comprising: the power circuit is connected with the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module, the communication data processing module is connected with the MCU chip circuit and used for remote communication, data processing and outputting signals to the MCU chip circuit, the output end of the MCU chip circuit is connected with the driving chip, the output end of the driving chip is connected with the relay circuit, the driving chip is used for controlling the work and the non-work of a relay of the relay circuit, the relay circuit is connected with the metering circuit and a three-phase external device, the relay circuit is used for controlling the on-off of the three-phase external device, the metering circuit is used for collecting electric quantity, one or more relays in the relay circuit are connected with the metering circuit, and one relay is connected with one metering circuit and is used for respectively collecting the electric quantity of each path.
The communication data processing module is used for sending and receiving remote communication signals, processing the remote communication signals and remotely and intelligently controlling the three-phase timer. The telecommunication signal is an LIFI signal. The input end of the communication data processing module is connected with a manual switch, and the three-phase timer is manually controlled. The manual switch is pressed down to send a pulse signal to the communication data processing module, and the communication data processing module sends a signal to the MCU chip circuit so as to control the work or the non-work of the relay circuit. The communication data processing module is further connected with a reset circuit, a clock circuit and an indicator light circuit, the reset circuit is used for resetting the communication data processing module, the clock circuit is used for providing clock signals for the communication data processing module when a network is disconnected, and the indicator light circuit is used for displaying the working state of the relay. The reset circuit includes: the device comprises a resistor R1 and a capacitor C17, wherein one end of the capacitor C17 is connected with the resistor R17 and the communication data processing module, the other end of the capacitor C17 is grounded, and the other end of the resistor R1 is connected with the communication data processing module. The clock circuit includes: the chip U6, electric capacity CT1, electric capacity CT2, crystal oscillator X1, resistance RT1, electric capacity CT 2's one end is connected with 1 foot of chip U6, the other end ground connection, electric capacity CT 1's one end is connected with 2 feet of chip U6, the other end ground connection, crystal oscillator X1's both ends are connected with electric capacity CT1 and electric capacity CT2 respectively, resistance RT1 is connected with 5 feet and 6 feet of chip U6. The indicator light circuit includes: resistance R15, pilot lamp LED1 and pilot lamp LED3, pilot lamp LED1 and pilot lamp LED3 one end are connected with communication data processing module, the other end is connected with resistance R15, communication data processing module signal control relay work then pilot lamp LED1 and pilot lamp LED3 light, communication data processing module signal control relay out of work then pilot lamp LED1 and pilot lamp LED3 do not light.
The MCU chip circuit is used for carrying out data processing on signals input by the communication data processing module, can release partial functions of the communication data processing module and avoids errors. A conversion circuit is connected between the communication data processing module and the MCU chip circuit, the working voltage of the communication data processing module is lower than that of the MCU chip circuit, and the conversion circuit is used for level conversion. The conversion circuit includes: the triode Q1, the triode Q2, the triode Q3 and the resistor R30, wherein the collector electrodes of the triode Q1, the triode Q2 and the triode Q3 are respectively connected with an MCU chip U2 of the MCU chip circuit, the emitter electrodes are respectively grounded, and the base electrodes are respectively connected with the resistor R30.
The driving chip is in circuit connection with the MCU chip through an interface, the driving chip is respectively connected with the three relays, the driving chip is used for controlling the three relays to work or not work simultaneously, and the three relays are respectively connected with the wiring port A, the wiring port B and the wiring port C of the three-phase port. The output end of the driving chip U5 is respectively connected with the relay K1, the relay K2 and the relay K3, and the relay K1 and the relay K2 are respectively connected with the first metering circuit and the second metering circuit, so that the electric quantities of two paths (two phases) in the three phases are respectively detected. The first metering circuit includes: the device comprises a resistor RS1, a resistor RS2, a resistor RS3, a capacitor CS1, a capacitor CS2 and a metering chip U3; the resistor RS1, the resistor RS2, the resistor RS3, the capacitor CS1 and the capacitor CS2 are used for testing current, and the metering chip U3 is used for detecting electric quantity; one end of the capacitor CS1 is grounded, the other end of the capacitor CS1 is connected with one end of the metering chip U3 and one end of the resistor RS2 respectively, one end of the capacitor CS2 is grounded, the other end of the capacitor CS2 is connected with one end of the metering chip U3 and one end of the resistor RS3 respectively, one end of the resistor RS1 is connected with the resistor RS2, and the other end of the resistor RS1 is connected with the resistor RS 3. The second metering circuit includes: the device comprises a resistor RS11, a resistor RS12, a resistor RS13, a capacitor CS11, a capacitor CS12 and a metering chip U13; the resistor RS11, the resistor RS12, the resistor RS13, the capacitor CS11 and the capacitor CS12 are used for testing current, and the metering chip U13 is used for detecting electric quantity; one end of the capacitor CS11 is grounded, the other end of the capacitor CS11 is connected with one end of the metering chip U13 and one end of the resistor RS12 respectively, one end of the capacitor CS12 is grounded, the other end of the capacitor CS12 is connected with one end of the metering chip U13 and one end of the resistor RS13 respectively, one end of the resistor RS11 is connected with the resistor RS12, and the other end of the resistor RS11 is connected with the resistor RS 13.
The power supply circuit is used for providing direct current after voltage reduction for the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module. The power supply circuit provides 27V direct current for the driving chip and the relay circuit, the power supply circuit provides 5V direct current for the metering circuit and the MCU chip circuit, and the power supply circuit provides 3.3V direct current for the communication data processing module. The input of power supply circuit is connected with the commercial power, and power supply circuit includes: bridge rectifier diode, filter circuit, step-down control circuit, transformer and step-down chip circuit, bridge rectifier diode's output and filter circuit are connected, bridge rectifier diode is used for converting the alternating current into the direct current, step-down control circuit is connected with the input of transformer, step-down control circuit is used for controlling the transformer, the transformer is used for reducing voltage to direct current output, the output and the step-down chip circuit of transformer are connected, step-down chip circuit is used for stepping down 27V direct current into 5V direct current output.
While various aspects and embodiments have been disclosed herein, it will be apparent to those skilled in the art that other aspects and embodiments may be made without departing from the spirit of the disclosure, and that several modifications and improvements may be made without departing from the scope of the disclosure. The various aspects and embodiments disclosed herein are for purposes of illustration only and are not intended to be limiting, with the true scope of the disclosure being indicated by the following claims.
Claims (10)
1. A circuit for an intelligent three-phase timer, comprising: the power circuit is connected with the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module, the communication data processing module is connected with the MCU chip circuit and used for remote communication, data processing and outputting signals to the MCU chip circuit, the output end of the MCU chip circuit is connected with the driving chip, the output end of the driving chip is connected with the relay circuit, the driving chip is used for controlling the work and the non-work of a relay of the relay circuit, the relay circuit is connected with the metering circuit and a three-phase external device, the relay circuit is used for controlling the on-off of the three-phase external device, the metering circuit is used for collecting electric quantity, one or more relays in the relay circuit are connected with the metering circuit, and one relay is connected with one metering circuit and is used for respectively collecting the electric quantity of each path.
2. The circuit of an intelligent three-phase timer as claimed in claim 1, wherein the communication data processing module is used for sending and receiving telecommunication signals and carrying out data processing on the telecommunication signals, and is used for remotely and intelligently controlling the three-phase timer; the telecommunication signal comprises: wifi, Bluetooth, Zigbee, RFID, LIFI, Z-wave, UWB, EnOcean signal.
3. The intelligent three-phase timer circuit as claimed in claim 1, wherein the input terminal of the communication data processing module is connected to a manual switch, and the manual switch is used for manually controlling the three-phase timer.
4. The intelligent three-phase timer circuit as claimed in claim 2, wherein the communication data processing module is further connected with a reset circuit, a clock circuit and an indicator light circuit, the reset circuit is used for resetting the communication data processing module, the clock circuit is used for providing a clock signal to the communication data processing module when the network is disconnected, and the indicator light circuit is used for displaying the working state of the relay.
5. The intelligent three-phase timer circuit of claim 4, wherein the reset circuit comprises: the device comprises a resistor R1 and a capacitor C17, wherein one end of the capacitor C17 is connected with the resistor R17 and the communication data processing module, the other end of the capacitor C17 is grounded, and the other end of the resistor R1 is connected with the communication data processing module; the clock circuit includes: the chip U6, the capacitor CT1, the capacitor CT2, the crystal oscillator X1 and the resistor RT1, wherein one end of the capacitor CT2 is connected with a pin 1 of the chip U6, the other end of the capacitor CT1 is grounded, one end of the capacitor CT1 is connected with a pin 2 of the chip U6, the other end of the capacitor CT1 is grounded, two ends of the crystal oscillator X1 are respectively connected with the capacitor CT1 and the capacitor CT2, and the resistor RT1 is connected with a pin 5 and a pin 6 of the chip U6; the indicator light circuit includes: resistance R15, pilot lamp LED1 and pilot lamp LED3, pilot lamp LED1 and pilot lamp LED3 one end are connected with communication data processing module, the other end is connected with resistance R15, communication data processing module signal control relay work then pilot lamp LED1 and pilot lamp LED3 light, communication data processing module signal control relay out of work then pilot lamp LED1 and pilot lamp LED3 do not light.
6. The circuit of claim 1, wherein a conversion circuit is connected between the communication data processing module and the MCU chip circuit, the operating voltage of the communication data processing module is lower than that of the MCU chip circuit, and the conversion circuit is used for level conversion.
7. The intelligent three-phase timer circuit of claim 6, wherein the conversion circuit comprises: the triode Q1, the triode Q2, the triode Q3 and the resistor R30, wherein the collector electrodes of the triode Q1, the triode Q2 and the triode Q3 are respectively connected with the MCU chip U2 of the MCU chip circuit, the emitter electrodes are respectively grounded, and the base electrodes are respectively connected with the resistor R30.
8. The circuit of the intelligent three-phase timer as claimed in claim 1, wherein the driving chip is electrically connected with the MCU chip through the interface, the driving chip is respectively connected with three relays, the driving chip is used for controlling the three relays to work or not work simultaneously, and the three relays are respectively connected with the wiring port A, the wiring port B and the wiring port C of the three-phase port.
9. The circuit of the intelligent three-phase timer as claimed in claim 8, wherein the output terminal of the driving chip U5 is connected to the relay K1, the relay K2 and the relay K3 respectively, if only one relay is connected to the metering circuit, the metering circuit is the first metering circuit, and the electric quantity of one of the three phases is detected; if two relays are connected with the metering circuit, the two relays are respectively connected with the first metering circuit and the second metering circuit, and the two paths of electric quantity in the three phases are respectively detected; if three relays are connected with the metering circuit, the three relays are respectively connected with the first metering circuit, the second metering circuit and the third metering circuit to respectively detect the electric quantity of three paths in the three phases.
10. The circuit of the intelligent three-phase timer as claimed in claim 1, wherein the power circuit is used for providing the stepped-down direct current for the driving chip, the relay circuit, the metering circuit, the MCU chip circuit and the communication data processing module; the input of power supply circuit is connected with the commercial power, and power supply circuit includes: bridge rectifier diode, filter circuit, step-down control circuit, transformer and step-down chip circuit, bridge rectifier diode's output and filter circuit are connected, bridge rectifier diode is used for converting the alternating current into the direct current, step-down control circuit is connected with the input of transformer, step-down control circuit is used for controlling the transformer, the transformer is used for reducing voltage to direct current output, the output and the step-down chip circuit of transformer are connected, step-down chip circuit is used for stepping down 27V direct current to 5V direct current output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220661712.8U CN217036837U (en) | 2022-03-25 | 2022-03-25 | Circuit of intelligent three-phase timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220661712.8U CN217036837U (en) | 2022-03-25 | 2022-03-25 | Circuit of intelligent three-phase timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217036837U true CN217036837U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220661712.8U Active CN217036837U (en) | 2022-03-25 | 2022-03-25 | Circuit of intelligent three-phase timer |
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| CN (1) | CN217036837U (en) |
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2022
- 2022-03-25 CN CN202220661712.8U patent/CN217036837U/en active Active
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