CN204517376U - A kind of Smart Power Module - Google Patents

Abstract

The utility model discloses a kind of Smart Power Module, comprise voltage sampling circuit, the first current sampling circuit, the second current sampling circuit, AC-DC change-over circuit AC-DC, one chip microcomputer MCU and control relay circuit.Wherein, one chip microcomputer MCU carries out the calculating of power by the data of the first current sampling circuit, the second current sampling circuit and voltage sampling circuit, to realize the monitoring of the energy consumption of power consumption equipment and to detect power consumption equipment and whether there is leaky, and the control of circuit realiration to power consumption equipment energising and power-off can be controlled by control relay.As can be seen here, the Smart Power Module that the application provides can not only realize the monitoring to power consumption equipment energy consumption, and can also when power consumption equipment leaks electricity, and realizes the control of energising to power consumption equipment and power-off.

Description

An intelligent power module

technical field

The utility model relates to the technical field of electric power, in particular to an intelligent power supply module.

Background technique

At present, there is no separate energy consumption monitoring device for electrical equipment, and the energy consumption monitoring of household or enterprise electrical equipment is mainly recorded through electric energy meters. As users have higher and higher requirements for electricity consumption monitoring of various electrical equipment, the existing electric energy meters can no longer meet the needs of users. For example, the energy meter cannot monitor the energy consumption of the electrical equipment, and control the power-off of the electrical equipment when the electrical equipment does not need to be used or the electrical equipment is abnormal.

Utility model content

The purpose of the utility model is to provide an intelligent power supply module, through monitoring the energy consumption of the electrical equipment, when the electrical equipment is not needed or abnormal, the electrical equipment is controlled to be powered off.

In order to solve the above technical problems, the utility model provides an intelligent power supply module, including:

a voltage sampling circuit connected to the neutral line of the grid, and the neutral line of the grid is connected to the input end of the voltage sampling circuit;

a first current sampling circuit connected to the live wire of the grid, and the live wire of the grid is connected to the input end of the first current sampling circuit;

an AC-DC conversion circuit AC-DC connected to the neutral wire of the grid and the live wire of the grid;

A second current sampling circuit connected to the grid neutral line;

A single-chip microcomputer MCU connected to the output end of the first current sampling circuit, the output end of the voltage sampling circuit, the output end of the second current sampling circuit, and the AC-DC conversion circuit;

A relay controlled circuit connected to the output end of the first current sampling circuit and the output end of the single-chip microcomputer MCU;

Wherein, the electrical equipment is connected to the output terminal of the controlled relay circuit, and the first power supply terminal and the first ground terminal of the AC-DC conversion circuit AC-DC are connected to the single-chip microcomputer MCU.

Preferably, the single-chip microcomputer MCU also includes:

A data interaction terminal connected to an external system for data interaction.

Preferably, the data interaction terminal includes:

A data sending end connected to the data receiving line of the external system and used for sending the energy consumption data of the electrical equipment.

A data receiving end connected to the data sending line of the external system and used for receiving data from the external system.

Preferably, the data interaction terminal is a UART communication interface.

Preferably, the AC-DC conversion circuit AC-DC also includes:

a second power terminal and a second ground terminal;

Wherein, the second power supply terminal and the second ground terminal are connected to an external system for supplying power to the external system.

Preferably, the first current sampling circuit is in the form of a manganin shunt.

Preferably, the second current sampling circuit is in the form of a current transformer.

Preferably, the voltage sampling circuit is in the form of resistance voltage division.

The intelligent power supply module provided by the utility model includes a voltage sampling circuit, a first current sampling circuit, a second current sampling circuit, an AC-DC conversion circuit AC-DC, a single-chip microcomputer MCU and a relay control circuit, wherein the single-chip The microcomputer MCU calculates the power through the data of the first current sampling circuit, the second current sampling circuit and the voltage sampling circuit, so as to realize the monitoring of the energy consumption of the electrical equipment and detect whether there is leakage in the electrical equipment, and can pass The control relay is controlled by the control circuit to control the power on and off of the electrical equipment. It can be seen that the intelligent power supply module provided by the present application can not only monitor the energy consumption of the electrical equipment, but also control the power on and off of the electrical equipment when the electrical equipment leaks electricity.

Description of drawings

In order to illustrate the embodiment of the utility model more clearly, the accompanying drawings that need to be used in the embodiment will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. For those skilled in the art Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a structural diagram of an intelligent power module provided by the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. . Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

The core of the utility model is to provide an intelligent power supply module.

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

An intelligent power module, comprising:

a voltage sampling circuit connected to the neutral line of the grid, and the neutral line of the grid is connected to the input end of the voltage sampling circuit;

a first current sampling circuit connected to the live wire of the grid, and the live wire of the grid is connected to the input end of the first current sampling circuit;

an AC-DC conversion circuit AC-DC connected to the neutral wire of the grid and the live wire of the grid;

A second current sampling circuit connected to the grid neutral line;

A single-chip microcomputer MCU connected to the output end of the first current sampling circuit, the output end of the voltage sampling circuit, the output end of the second current sampling circuit, and the AC-DC conversion circuit;

A relay controlled circuit connected to the output end of the first current sampling circuit and the output end of the single-chip microcomputer MCU;

Wherein, the electrical equipment is connected to the output terminal of the controlled relay circuit, and the first power supply terminal and the first ground terminal of the AC-DC conversion circuit AC-DC are connected to the single-chip microcomputer MCU.

Fig. 1 is a structural diagram of an intelligent power module provided by the present invention. The input end of the voltage sampling circuit 1 is connected to the grid zero line N, the input end of the first current sampling circuit 2 is connected to the live line L of the grid, its output end is connected to the relay controlled circuit 11, and the input end of the second current sampling circuit 12 is connected to the Grid live wire L connection. In a specific implementation, the electrical equipment is connected to the output end of the relay controlled circuit 11, so that the electrical equipment is connected to the grid. The neutral wire N and the live wire L are connected to the AC-DC3. The AC-DC3 can convert the AC power of the power grid into a DC power, and is connected to the MCU4 through the first power supply terminal 5 and the first ground terminal 6 . MCU4 is also connected with the output terminal of the first current sampling circuit 2, the output terminal of the second current sampling circuit 12 and the output terminal of the voltage sampling circuit 1, and can obtain the first current sampling circuit 2, the second current sampling circuit 12 and the voltage sampling circuit. The sampling value of circuit 1, and calculate the power according to the current sampling value and voltage sampling value, and accumulate the total energy consumption of the electrical equipment. In addition, it is judged whether there is a leakage phenomenon through the respective current sampling values of the first current sampling circuit 2 and the second current sampling circuit 12 . When the MCU4 detects that the energy consumption of the electrical equipment is abnormal or there is a leakage phenomenon, the electrical equipment is controlled by the control circuit 11 to cut off the power through the relay.

The intelligent power supply module provided by this application uses a single-chip microcomputer MCU to calculate the power of the data of the first current sampling circuit, the second current sampling circuit and the voltage sampling circuit, so as to realize the monitoring of the energy consumption of the electrical equipment, and judge Whether there is a leakage phenomenon, when the energy consumption of the electrical equipment is abnormal or there is a leakage phenomenon, the relay can be controlled by the MCU to control the power on and off of the electrical equipment.

It should be noted that the relay controlled circuit mentioned in this application is a circuit controlled by a relay, that is, the MCU controls the contacts of the relay, so that the relay is controlled by the circuit to turn on or off, and finally controls the power on and off of the electrical equipment .

As a preferred embodiment, the single-chip microcomputer MCU also includes:

A data interaction terminal connected to an external system for data interaction.

As a preferred embodiment, the data interaction terminal includes:

A data sending end connected to the data receiving line of the external system and used for sending the energy consumption data of the electrical equipment.

A data receiving end connected to the data sending line of the external system and used for receiving data from the external system.

As shown in FIG. 1 , the MCU 4 also includes data interaction terminals 7 and 8 for data interaction with external systems. Among them, the data sending end 7 is connected to the data receiving line of the external system, and is used to send the energy consumption data of the electrical equipment monitored by the MCU4 to the external system for viewing by the external system; the data receiving end 8 is connected to the data sending line of the external system , used to send the commands sent by the external system to the MCU4. In the specific implementation, when the user checks the data received from the external system and finds that the data is abnormal, the command to disconnect the electrical equipment is sent to the MCU4 through the data transmission line of the external system, and the MCU4 controls the relay by the control circuit 11 Disconnect electrical equipment.

As a preferred implementation manner, the data interaction terminal is a UART communication interface.

In a specific implementation, the interactive data between the MCU4 and the external system is parallel data, therefore, the parallel data can be converted into serial data through the UART communication interface to realize the interaction between the MCU4 and the external system.

As a preferred implementation manner, the AC-DC conversion circuit AC-DC includes:

a second power terminal and a second ground terminal;

Wherein, the second power supply terminal and the second ground terminal are connected to an external system for supplying power to the external system.

As shown in FIG. 1 , the AC-DC3 also includes a second power terminal 9 and a second ground terminal 10 , by connecting the external system with the second power terminal 9 and the second ground terminal 10 , the external system can be powered.

As a preferred implementation manner, the first current sampling circuit is in the form of a manganin shunt.

In a specific implementation, the first current sampling circuit 2 may adopt a manganin shunt method, which can reduce the change in sampling accuracy caused by temperature changes and improve the accuracy of the first current sampling circuit.

As a preferred implementation manner, the second current sampling circuit is in the form of a current transformer.

In a specific implementation, the second current sampling circuit 12 may use a current transformer.

As a preferred implementation manner, the voltage sampling circuit is in the form of resistance voltage division.

In a specific implementation, the voltage sampling circuit 1 may adopt a resistive voltage division method, which saves costs and has a simple circuit.

The intelligent power supply module provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (8)

1. a Smart Power Module, is characterized in that, comprising:

The voltage sampling circuit be connected with electrical network zero line, described electrical network zero line is connected with the input of described voltage sampling circuit;

The first current sampling circuit be connected with electrical network live wire, described electrical network live wire is connected with the input of described first current sampling circuit;

The AC-DC change-over circuit AC-DC be connected with described electrical network zero line and described electrical network live wire;

The second current sampling circuit be connected with described electrical network zero line;

The one chip microcomputer MCU be connected with the output of the output of described first current sampling circuit, described voltage sampling circuit, described second current sampling circuit output and described AC-DC change-over circuit AC-DC;

The relay be connected with described first current sampling circuit output and described one chip microcomputer MCU output is by control circuit;

Wherein, power consumption equipment is connected by the output of control circuit with described relay, and first power end of described AC-DC change-over circuit AC-DC is connected with described one chip microcomputer MCU with the first earth terminal.

2. Smart Power Module according to claim 1, is characterized in that, described one chip microcomputer MCU also comprises:

Be connected with external system, for carrying out the data interaction end of data interaction.

3. Smart Power Module according to claim 2, is characterized in that, described data interaction end comprises:

Be connected with the data receiver line of described external system, for sending the data sending terminal of described power consumption equipment energy consumption data;

Be connected with the data transmission line of described external system, for receiving the data receiver of described external system data.

4. the Smart Power Module according to Claims 2 or 3, is characterized in that, described data interaction end is UART communication interface.

5. Smart Power Module according to claim 1, is characterized in that, described AC-DC change-over circuit AC-DC also comprises:

Second source end and the second earth terminal;

Wherein, described second source end is connected with external system with described second earth terminal, for being described external sys-tems.

6. Smart Power Module according to claim 1, is characterized in that, described first current sampling circuit is manganese copper diverter mode.

7. Smart Power Module according to claim 1, is characterized in that, described second current sampling circuit is current transformer mode.

8. Smart Power Module according to claim 1, is characterized in that, described voltage sampling circuit is electric resistance partial pressure mode.