CN204789741U - A voltage detecting system for domestic intelligent power distribution system - Google Patents

Abstract

The utility model relates to a voltage detection system for a household intelligent power distribution system, comprising a wirelessly connected intelligent communication terminal and a voltage detection control device, the voltage detection control device including a surge protection module, a voltage detection module, and a voltage sampling module , a central control system, a wireless communication module connected to the central control system, a working power supply module, a voltage comparison module, a display control module and a switch drive module, the surge protection module is connected to the working power supply module, and the voltage detection module is connected to the voltage The comparison module is connected, the voltage sampling module is connected with the voltage detection module, the working power supply module includes a working power supply circuit, and the voltage detection system used in the household intelligent power distribution system is wirelessly connected with the voltage detection control device through the intelligent communication terminal to realize In order to monitor the electricity consumption in the home in real time; and the voltage detection control device has self-detection and protection functions, which improves the safety of electricity consumption in the home.

Description

A voltage detection system for household intelligent power distribution system

technical field

The utility model relates to a voltage detection system used in a household intelligent power distribution system.

Background technique

In modern society, with the improvement of people's living standards, people's requirements for living environment are getting higher and higher, and household electricity consumption is also of great concern to people.

In household electricity consumption, damage to electrical appliances due to line leakage abounds, and there are also cases where the response of power distribution equipment in the home is too slow, resulting in damage to electrical appliances and even threatening personal safety.

A small number of users have installed voltage detection devices at home, but because these voltage detection devices lack protection and control functions, and do not have the function of providing real-time monitoring for users, the effect of these voltage monitoring devices is mediocre.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the lack of protection function and real-time monitoring ability in the prior art, provide a voltage detection system for household intelligent power distribution system with detection protection function and real-time monitoring.

The technical solution adopted by the utility model to solve the technical problem is: a voltage detection system for household intelligent power distribution system, including a wirelessly connected intelligent communication terminal and a voltage detection control device, the voltage detection control device includes a surge Protection module, voltage detection module, voltage sampling module, central control system, wireless communication module connected with the central control system, working power supply module, voltage comparison module, display control module and switch driving module, the surge protection module and the working power supply The modules are connected, the voltage detection module is connected to the voltage comparison module, and the voltage sampling module is connected to the voltage detection module;

The working power supply module includes a working power supply circuit, and the working power supply circuit includes a piezoresistor, a thermistor, a transformer, a first rectifier bridge, a second rectifier bridge, a third rectifier bridge, a first voltage stabilizing transistor, a first capacitor , the second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor and the ninth capacitor, the transformer is provided with one input and three outputs, and the input of the transformer Terminals are connected in parallel with piezoresistors and thermistors respectively, the first output terminal of the transformer is connected with the input terminal of the first rectifier bridge, the first output terminal of the first rectifier bridge is grounded, and the first output terminal of the first rectifier bridge is connected to the ground. The second output terminal is grounded through the first capacitor, the second output terminal of the first rectifier bridge is connected to the positive pole of the second capacitor and grounded through the second capacitor, and the second output terminal of the first rectifier bridge is grounded through the third capacitor Grounded, the second output end of the transformer is connected to the input end of the second rectifier bridge, the first output end of the second rectifier bridge is grounded, the second output end of the second rectifier bridge is connected to the positive pole of the fourth capacitor connected to the ground through the fourth capacitor, the second output end of the second rectifier bridge is grounded through the fifth capacitor, the second output end of the second rectifier bridge is connected to the input end of the first regulator transistor, and the first The ground terminal of a voltage-stabilizing transistor is grounded, the output end of the first voltage-stabilizing transistor is connected to the positive pole of the sixth capacitor and grounded through the sixth capacitor, and the output end of the first voltage-stabilizing transistor is grounded through the seventh capacitor, so The third output terminal of the transformer is connected to the input terminal of the third rectifier bridge, the first output terminal of the third rectifier bridge is grounded, the second output terminal of the third rectifier bridge is connected to the positive pole of the eighth capacitor and passed through The eighth capacitor is grounded, the second output terminal of the third rectifier bridge is grounded through the ninth capacitor, the first output terminal of the first rectifier bridge, the first output terminal of the second rectifier bridge, and the first output terminal of the third rectifier bridge Two output terminals are insulated from each other;

The voltage sampling module includes a voltage sampling circuit, the voltage sampling circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor, the first resistor, the second resistor, the third resistor, The series circuit formed by the fourth resistor and the fifth resistor is grounded.

Specifically, in the voltage sampling circuit, due to the effect of resistor voltage division, heat is generated on each resistor, in order to improve the reliability of the voltage sampling circuit, the first resistor, the second resistor, the third resistor, the fourth resistor and the The power of the five resistors is 4W.

Specifically, in order to improve the reliability of the working power supply circuit, the models of the first rectifier bridge, the second rectifier bridge and the third rectifier bridge are all MB8S.

Specifically, in order to improve the practicability of the system, the intelligent communication terminal is a smart phone.

The beneficial effect of the utility model is that the voltage detection system used in the household intelligent power distribution system is wirelessly connected with the voltage detection control device through the intelligent communication terminal, and realizes real-time monitoring of the electricity consumption in the home; and the voltage detection control device has a self- The detection and protection functions improve the safety of electricity consumption in the home.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the system structural diagram of the voltage detection system of the utility model for household intelligent power distribution system;

Fig. 2 is the circuit schematic diagram of the working power supply circuit of the voltage detection system of the utility model for the household intelligent power distribution system;

Fig. 3 is the circuit principle diagram of the voltage sampling circuit of the voltage detection system of the utility model used in the household intelligent power distribution system;

In the figure: 1. Intelligent communication terminal, 2. Wireless communication module, 3. Working power module, 4. Surge protection module, 5. Central control system, 6. Voltage comparison module, 7. Switch drive module, 8. Display control Module, 9. Voltage detection module, 10. Voltage sampling module, RV1. Varistor, RT1. Thermistor, T1. Transformer, U1. First rectifier bridge, U2. Second rectifier bridge, U3. Third rectifier bridge , U4. The first voltage regulator transistor, C1. The first capacitor, C2. The second capacitor, C3. The third capacitor, C4. The fourth capacitor, C5. The fifth capacitor, C6. The sixth capacitor, C7. The seventh capacitor , C8. Eighth capacitor, C9. Ninth capacitor, R1. First resistor, R2. Second resistor, R3. Third resistor, R4. Fourth resistor, R5. Fifth resistor.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figures 1-3, a voltage detection system for a household intelligent power distribution system includes a wirelessly connected intelligent communication terminal 1 and a voltage detection control device, and the voltage detection control device includes a surge protection module 4, Voltage detection module 9, voltage sampling module 10, central control system 5, wireless communication module 2 connected with central control system 5, working power supply module 3, voltage comparison module 6, display control module 8 and switch drive module 7, the wave The surge protection module 4 is connected to the working power supply module 3, the voltage detection module 9 is connected to the voltage comparison module 6, and the voltage sampling module 10 is connected to the voltage detection module 9;

The working power supply module 3 includes a working power supply circuit, and the working power supply circuit includes a piezoresistor RV1, a thermistor RT1, a transformer T1, a first rectifier bridge U1, a second rectifier bridge U2, a third rectifier bridge U3, a first The regulator transistor U4, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the eighth capacitor C8 and the ninth capacitor C9, The transformer T1 is provided with one input and three outputs, the input terminals of the transformer T1 are respectively connected in parallel with the varistor RV1 and the thermistor RT1, the first output terminal of the transformer T1 is connected with the input of the first rectifier bridge U1 The first output end of the first rectifier bridge U1 is grounded, the second output end of the first rectifier bridge U1 is grounded through the first capacitor C1, and the second output end of the first rectifier bridge U1 is connected to the second output end of the first rectifier bridge U1. The anode of the second capacitor C2 is connected to the ground through the second capacitor C2, the second output terminal of the first rectifier bridge U1 is grounded through the third capacitor C3, the second output terminal of the transformer T1 is connected to the input of the second rectifier bridge U2 terminal connection, the first output end of the second rectifier bridge U2 is grounded, the second output end of the second rectifier bridge U2 is connected to the positive pole of the fourth capacitor C4 and grounded through the fourth capacitor C4, the second rectifier bridge U2 The second output terminal of the bridge U2 is grounded through the fifth capacitor C5, the second output terminal of the second rectifier bridge U2 is connected to the input terminal of the first voltage stabilizing transistor U4, and the ground terminal of the first voltage stabilizing transistor U4 is grounded , the output end of the first voltage stabilizing transistor U4 is connected to the anode of the sixth capacitor C6 and grounded through the sixth capacitor C6, the output end of the first voltage stabilizing transistor U4 is grounded through the seventh capacitor C7, and the transformer T1 The third output terminal of the third rectifier bridge U3 is connected to the input terminal of the third rectifier bridge U3, the first output terminal of the third rectifier bridge U3 is grounded, and the second output terminal of the third rectifier bridge U3 is connected to the positive pole of the eighth capacitor C8 And grounded through the eighth capacitor C8, the second output end of the third rectifier bridge U3 is grounded through the ninth capacitor C9, the first output end of the first rectifier bridge U1, the first output end of the second rectifier bridge U2 and the first output terminals of the third rectifier bridge U3 are insulated from each other;

The voltage sampling module 10 includes a voltage sampling circuit, the voltage sampling circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a fifth resistor R5, the first resistor R1, the second resistor The series circuit formed by the second resistor R2, the third resistor R3, the fourth resistor R4 and the fifth resistor R5 is grounded.

Specifically, in the voltage sampling circuit, due to the effect of resistor division, heat is generated on each resistor. In order to improve the reliability of the voltage sampling circuit, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor Both the power of the resistor R4 and the fifth resistor R5 are 4W.

Specifically, in order to improve the reliability of the working power supply circuit, the models of the first rectifier bridge U1 , the second rectifier bridge U2 and the third rectifier bridge U3 are all MB8S.

Specifically, in order to improve the practicability of the system, the intelligent communication terminal 1 is a smart phone.

In fact: in the voltage detection and control device, the surge protection module 4 has the function of filtering out the electricity entering the home grid from the external power grid, and protects the electrical equipment in the home; the working power supply module 3 provides voltage detection and control Each module in the device provides power supply; the voltage sampling module 10 samples the voltage in the home grid, then calculates the sampled value through the voltage detection module 9, and then compares and judges the rated voltage of each electrical appliance in the home through the voltage comparison module 6, and finally Send a signal to the central control system 5, and the central control system 5 controls the switch drive module 7 to perform circuit breaker protection for the relevant electrical appliances that need protection in the home. At the same time, the central control system 5 controls the display control module 8 to display relevant power consumption information to the user. Let the user have an intuitive understanding of the electricity consumption at home; the wireless communication module 2 is used to connect the voltage detection control device with the intelligent communication terminal 1 wirelessly.

In fact: the first output end of the first rectifier bridge U1 in the working power circuit, the first output end of the second rectifier bridge U2 and the first output end of the third rectifier bridge U3 are insulated from each other, in order to make the transformer T1 The three output circuits are isolated and insulated, thus ensuring the working reliability of the working power supply circuit. The first output loop of the transformer T1 is connected to the voltage sampling circuit, so the ground of the first output loop of the transformer T1 is connected to the ground of the voltage sampling circuit.

Compared with the prior art, the voltage detection system used in the household intelligent power distribution system is wirelessly connected to the voltage detection control device through the intelligent communication terminal 1, so as to realize real-time monitoring of home electricity consumption; and the voltage detection control device has a self- The detection and protection functions improve the safety of electricity consumption in the home.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. the voltage detecting system for domestic intelligent distribution system, it is characterized in that, comprise intelligent communication terminal (1) and the voltage detecting control device of wireless connections, described voltage detecting control device comprises surge protection module (4), voltage detection module (9), voltage sample module (10), central control system (5), the wireless communication module (2) be connected with central control system (5), working power module (3), voltage comparison module (6), display control module (8) and switch drive module (7), described surge protection module (4) is connected with working power module (3), described voltage detection module (9) is connected with voltage comparison module (6), described voltage sample module (10) is connected with voltage detection module (9),

Described working power module (3) comprises working power circuit, described working power circuit comprises voltage dependent resistor (VDR) (RV1), thermistor (RT1), transformer (T1), first rectifier bridge (U1), second rectifier bridge (U2), 3rd rectifier bridge (U3), first voltage stabilizing triode (U4), first electric capacity (C1), second electric capacity (C2), 3rd electric capacity (C3), 4th electric capacity (C4), 5th electric capacity (C5), 6th electric capacity (C6), 7th electric capacity (C7), 8th electric capacity (C8) and the 9th electric capacity (C9), described transformer (T1) is provided with a road input and three tunnels export, the input end of described transformer (T1) is in parallel with voltage dependent resistor (VDR) (RV1) and thermistor (RT1) respectively, first output terminal of described transformer (T1) is connected with the input end of the first rectifier bridge (U1), first output head grounding of described first rectifier bridge (U1), second output terminal of described first rectifier bridge (U1) is by the first electric capacity (C1) ground connection, second output terminal of described first rectifier bridge (U1) is connected with the positive pole of the second electric capacity (C2) and passes through the second electric capacity (C2) ground connection, second output terminal of described first rectifier bridge (U1) is by the 3rd electric capacity (C3) ground connection, second output terminal of described transformer (T1) is connected with the input end of the second rectifier bridge (U2), first output head grounding of described second rectifier bridge (U2), second output terminal of described second rectifier bridge (U2) is connected with the positive pole of the 4th electric capacity (C4) and passes through the 4th electric capacity (C4) ground connection, second output terminal of described second rectifier bridge (U2) is by the 5th electric capacity (C5) ground connection, second output terminal of described second rectifier bridge (U2) is connected with the input end of the first voltage stabilizing triode (U4), the earth terminal ground connection of described first voltage stabilizing triode (U4), the output terminal of described first voltage stabilizing triode (U4) is connected with the positive pole of the 6th electric capacity (C6) and passes through the 6th electric capacity (C6) ground connection, the output terminal of described first voltage stabilizing triode (U4) is by the 7th electric capacity (C7) ground connection, 3rd output terminal of described transformer (T1) is connected with the input end of the 3rd rectifier bridge (U3), first output head grounding of described 3rd rectifier bridge (U3), second output terminal of described 3rd rectifier bridge (U3) is connected with the positive pole of the 8th electric capacity (C8) and passes through the 8th electric capacity (C8) ground connection, second output terminal of described 3rd rectifier bridge (U3) is by the 9th electric capacity (C9) ground connection, first output terminal of described first rectifier bridge (U1), first output terminal of the second rectifier bridge (U2) and the first output terminal mutually insulated between two of the 3rd rectifier bridge (U3),

Described voltage sample module (10) comprises voltage sampling circuit, described voltage sampling circuit comprises the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) and the 5th resistance (R5), the series circuit ground connection that described first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) and the 5th resistance (R5) form.

2. as claimed in claim 1 for the voltage detecting system of domestic intelligent distribution system, it is characterized in that, the power of described first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) and the 5th resistance (R5) is 4W.

3. as claimed in claim 1 for the voltage detecting system of domestic intelligent distribution system, it is characterized in that, the model of described first rectifier bridge (U1), the second rectifier bridge (U2) and the 3rd rectifier bridge (U3) is MB8S.

4., as claimed in claim 1 for the voltage detecting system of domestic intelligent distribution system, it is characterized in that, described intelligent communication terminal (1) is smart mobile phone.