Intelligent electric quantity statistics socket circuit

Abstract

The utility model discloses an intelligent electric quantity statistics socket circuit comprising a socket, the socket is provided with an electric energy metering module, a rectification voltage reduction power supply module, a relay control module and a WIFI control module, and the output end of the power supply module is connected with the power supply input end of the rectification voltage reduction power supply module. The power supply output end of the rectification voltage reduction power supply module is connected with the input end of the relay control module, the relay control module is provided with the electric energy metering module, and the control output end of the WIFI control module is connected with the input end of the relay control module. According to the intelligent electric quantity statistics socket, a WiFi network in a conventional family is utilized, specified electric appliances can be turned on or turned off through App operation, intelligentization of the electric appliances in the family can be realized without replacing the electric appliances, and due to the fact that the intelligent socket can enable the electric appliances to be completely powered off, the intelligent electric quantity statistics socket can be used for electric appliances with large power such as televisions and electric water heaters. And opening at any time is realized.

Description

Technical Field

[0001] The utility model relates to the field of circuit control, and specifically, to an intelligent power consumption statistics socket circuit. Background Art

[0002] With the improvement of living standards, as a household appliance integrating lighting, blowing, heating, and dehumidifying, the bathroom heater is used by more and more families. The air-heating type bathroom heater is a big power consumer. The maximum power of some bathroom heaters can reach up to 2500W when working, which is very power-consuming. Many users may not turn it off immediately after turning on the heating function because they don't know the specific power consumption situation during use and let it work, wasting a large amount of electric energy. For different working modes of the bathroom heater, the power consumption is also different. When using the bathroom heater, users cannot accurately know the power consumption of various working modes of the bathroom heater, and there are oversights during use, and it is easy to turn on multiple working modes simultaneously, resulting in waste of electric energy. Therefore, an intelligent power consumption statistics socket is needed. Summary of the Invention

[0003] The purpose of the utility model is to provide an intelligent power consumption statistics socket circuit.

[0004] The utility model includes a socket, and the socket is provided with an electric energy metering module, a rectifying and step-down power supply module, a relay control module, and a WIFI control module. The output end of the power supply module is connected to the power supply input end of the rectifying and step-down power supply module. The power supply output end of the rectifying and step-down power supply module is connected to the input end of the relay control module. The electric energy metering module is arranged on the relay control module. The control output end of the WIFI control module is connected to the input end of the relay control module.

[0005] Further, the rectifying and step-down power supply module includes a first power supply chip CZ1, a second power supply chip U2, a third power supply chip U3, a fuse resistor RF1, a second rectifying diode D2, a first rectifying diode D1, a third rectifying diode D3, and a π-type filter circuit. The first power supply chip CZ1 is arranged on the external power supply. The sampling output end of the first power supply chip CZ1 is connected to the input end of the electric energy metering module. The external power supply is connected to the π-type filter circuit through the fuse resistor RF1 and the second rectifying diode D2. The output end of the π-type filter circuit is connected to the input end of the second power supply chip U2. The output end of the second power supply chip U2 is connected to the input end of the third power supply chip U3. A current feedback resistor R2 is connected between the 1st pin and the 5th pin of the second power supply chip U2. The first rectifying diode D1, through an oscillating inductor L2 and the third rectifying diode D3, is connected to a second inductor L2 to form an absorption protection circuit.

[0006] Further, the π-type filter circuit includes a second electrolytic capacitor C2, a third electrolytic capacitor C3, and a first inductor L1.

[0007] Further, the power metering module includes a current sampling signal circuit and a voltage signal sampling circuit. The current sampling signal circuit includes a current sampling resistor R5, a third resistor R3, a seventh resistor R7, a metering chip U5, a ninth capacitor C9, and an eleventh capacitor C11. The current sampling resistor R5 is respectively connected in series with the third resistor R3 and the seventh resistor R7 and then connected to pins 2 and 3 of the metering chip U5. The voltage signal sampling circuit includes a seventeenth resistor R17, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12, and then connected to pin 4 of the metering chip U5. The seventeenth resistor R17 is connected to the fourth pin of the metering chip U5 after being connected in series with the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, and the twelfth resistor R12 in sequence.

[0008] Further, the relay control module includes a thirteenth resistor R13, a triode Q1 for conduction, and a relay JD1. The output end of the WIFI control module is connected to the first end of the thirteenth resistor R13. The second end of the thirteenth resistor R13 is connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the input end of the relay JD1.

[0009] Further, the model of the second power supply chip U2 is BP2525D, the model of the third power supply chip U3 is LM1117F-3.3, and the model of the metering chip U5 is BL093.

[0010] Sockets usually use the wireless network in the 2.4GHz band for communication. 2.4GHz is a commonly used band for WiFi communication, which provides a relatively wide coverage range and good penetration, and is suitable for home environments. The smart socket first needs to be connected to the home WiFi network so that it can receive instructions from the App. Users send instructions through the App installed on the smartphone, and these instructions are sent to the WiFi control module of the socket through the Internet. After receiving the instructions sent by the App, the WiFi control module of the smart socket will parse these instructions and perform corresponding operations, such as turning on or off the electrical appliances connected to the socket.

[0011] Smart sockets usually have a power monitoring function, which can record and count the power consumption of electrical appliances to help users understand the energy consumption of electrical appliances. Users can remotely operate the smart socket through the App anywhere to control the electrical appliances, increasing convenience.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The intelligent power consumption statistical socket of the utility model utilizes the existing WiFi network in the family, can turn on or off specified electrical appliances through App operation, realizes the intelligentization of household electrical appliances without replacing the electrical appliances, and because the intelligent socket can completely cut off the power supply of the electrical appliances, for electrical appliances with relatively large standby power such as televisions and electric water heaters, it can be turned on and off as needed. Brief Description of the Drawings

[0014] Figure 1 It is the circuit structure diagram of the utility model. Detailed Embodiment

[0015] The following further describes the utility model according to the embodiments, and the implementation manners of the utility model include but are not limited to the following embodiments.

[0016] As Figure 1 shown, the utility model includes a socket, the socket is provided with an electric energy metering module, a rectifying and step-down power supply module, a relay control module and a WIFI control module. The output end of the power supply module is connected to the power supply input end of the rectifying and step-down power supply module. The power supply output end of the rectifying and step-down power supply module is connected to the input end of the relay control module. The electric energy metering module is arranged on the relay control module. The control output end of the WIFI control module is connected to the input end of the relay control module.

[0017] The rectifying and step-down power supply module includes a first power chip CZ1, a second power chip U2, a third power chip U3, a fuse resistor RF1, a second rectifying diode D2, a first rectifying diode D1, a third rectifying diode D3 and a π-type filter circuit. The first power chip CZ1 is arranged on the external power supply. The sampling output end of the first power chip CZ1 is connected to the input end of the electric energy metering module. The external power supply is connected to the π-type filter circuit through the fuse resistor RF1 and the second rectifying diode D2. The output end of the π-type filter circuit is connected to the input end of the second power chip U2. The output end of the second power chip U2 is connected to the input end of the third power chip U3. A current feedback resistor R2 is connected between the 1st pin and the 5th pin of the second power chip U2. The first rectifying diode D1 forms an absorption protection circuit through an oscillation inductor L2 and the third rectifying diode D3 connected to a second inductor L2.

[0018] The π-type filter circuit includes a second electrolytic capacitor C2, a third electrolytic capacitor C3 and a first inductor L1.

[0019] The electric energy metering module includes a current sampling signal circuit and a voltage signal sampling circuit. The current sampling signal circuit includes a current sampling resistor R5, a third resistor R3, a seventh resistor R7, a metering chip U5, a ninth capacitor C9, and an eleventh capacitor C11. The current sampling resistor R5 is respectively connected in series with the third resistor R3 and the seventh resistor R7 and then connected to pins 2 and 3 of the metering chip U5. The voltage signal sampling circuit includes a seventeenth resistor R17, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12, and then connected to pin 4 of the metering chip U5. The seventeenth resistor R17 is connected to pin 4 of the metering chip U5 after being connected in series with the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, and the twelfth resistor R12 in sequence.

[0020] The relay control module includes a thirteenth resistor R13, a conducting triode Q1, and a relay JD1. The output end of the WIFI control module is connected to the first end of the thirteenth resistor R13. The second end of the thirteenth resistor R13 is connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the input end of the relay JD1.

[0021] The working principle of the present utility model is as follows:

[0022] The AC 220V voltage is connected to the rectifying diode D2 through the protective device fuse resistor RF1, and then to the π - type filtering circuit composed of an electrolytic capacitor C2, an electrolytic capacitor C3, and an inductor L1, and then connected to pin 4 of the power supply chip U2. The capacitor C1 is connected to pins 1 and 3 of U1 for filtering. The current feedback resistor R2 is connected to pins 1 and 5 of U2. The diode D1 is connected to the oscillating inductor L2. The diode D3 is connected to L2 for absorption protection. The filtering capacitors C5, C6, and the resistor R1 are connected to L2 to stabilize the voltage to 5V, and then connected to pin 3 of the power supply chip U3. Pin 2 of U3 is connected to the filtering capacitor C4 to make the output voltage stable at 3.3V to supply power to the subsequent circuits.

[0023] The relay switch is connected to the current sampling resistor R5, and then resistors R3 and R7 are respectively connected in series to pins 2 and 3 of the metering chip U5. Capacitors C9 and C11 are for filtering, forming a current sampling signal circuit; the voltage input L is connected to the voltage dividing resistor R17, then resistors R9, R10, R11, and R12 are connected in series and then connected to pin 4 of U4. The filtering capacitor C12 is connected to pin 4 of U5, forming a voltage signal sampling circuit; the 3.3V voltage of the power supply module is connected to pin 1 of U5 to supply power to the IC, and C7 and C8 are for power supply filtering; pin 9 of the wifi module U4 is connected to the resistor R4 and then connected to pin 8 of U5. Pin 6 of U5 is connected in series with the resistor R8 and then connected to pin 4 of U5 to provide a power value for U4. Pin 7 of U5 is connected in series with the resistor R6 and then connected to pin 2 of U4 to provide voltage and current values for U5.

[0024] When there is a high-level output signal at pin 11 of the wifi module U4, the triode Q1 is turned on through the resistor R13, so that the relay JD1 is attracted, and the AC 220V voltage can provide voltage for the peripherally connected load. The diode D4 plays a role in protecting the relay coil.

[0025] The power supply 3.3V is connected to pin 1 of the WiFi module U4 to supply power to U4. Pin 3 of U4 is grounded. C10 is connected to pins 1 and 3 of U4 for filtering. The power supply 3.3V is connected in series with the voltage dividing resistor R14, then connected to the light-emitting diode LED1 and then connected to pin 7 of U4 to indicate the overall state of the product. The power supply 3.3V is connected in series with the voltage dividing resistor R15 and then connected to the key switch K2. K2 is then connected to pin 5 of U4. When K2 is turned on, there is a high-level input at pin 5 of U4. The filtering capacitor C13 is connected between pin 5 of U4 and the ground.

[0026] The model of the second power supply chip U2 is BP2525D, the model of the third power supply chip U3 is LM1117F-3.3, and the model of the metering chip U5 is BL093.

[0027] The intelligent power consumption statistics socket makes use of the existing WiFi network in the home and can turn on or off specified electrical appliances through App operation. The intelligent power consumption statistics socket realizes the intelligence of home appliances without replacing the appliances, remote control by mobile phone APP. Moreover, since the intelligent socket can completely cut off the power supply of the electrical appliances, for electrical appliances with relatively large standby power such as televisions and electric water heaters, they can be turned on and off as needed after being controlled by the intelligent socket.

[0028] The above embodiments are only one of the preferred embodiments of the present invention and should not be used to limit the protection scope of the present invention. Any meaningless changes or touch-ups made on the main design concept and spirit of the present invention, as long as the technical problems solved are still the same as those of the present invention, should be included in the protection scope of the present invention.

Claims

1. An intelligent power consumption statistics socket circuit, including a socket, characterized in that, The socket is provided with an electric energy metering module, a rectifying and step-down power supply module, a relay control module and a WIFI control module. The output end of the power supply module is connected to the power supply input end of the rectifying and step-down power supply module. The power supply output end of the rectifying and step-down power supply module is connected to the input end of the relay control module. The electric energy metering module is arranged on the relay control module. The control output end of the WIFI control module is connected to the input end of the relay control module.

2. The intelligent power consumption statistics socket circuit according to claim 1, characterized in that The rectifying and step-down power supply module includes a first power chip CZ1, a second power chip U2, a third power chip U3, a fuse resistor RF1, a second rectifying diode D2, a first rectifying diode D1, a third rectifying diode D3 and a π-type filter circuit. The first power chip CZ1 is arranged on the external power supply. The sampling output end of the first power chip CZ1 is connected to the input end of the electric energy metering module. The external power supply is connected to the π-type filter circuit through the fuse resistor RF1 and the second rectifying diode D2. The output end of the π-type filter circuit is connected to the input end of the second power chip U2. The output end of the second power chip U2 is connected to the input end of the third power chip U3. A current feedback resistor R2 is connected between pin 1 and pin 5 of the second power chip U2. The first rectifying diode D1, through an oscillating inductor L2 and the third rectifying diode D3, is connected to a second inductor L2 to form a snubber protection circuit. The model of the second power chip U2 is BP2525D, and the model of the third power chip U3 is LM1117F-3.

3.

3. The intelligent power consumption statistics socket circuit according to claim 2, characterized in that, The π-type filter circuit includes a second electrolytic capacitor C2, a third electrolytic capacitor C3 and a first inductor L1.

4. The intelligent power consumption statistical socket circuit according to claim 1, characterized in that The electric energy metering module includes a current sampling signal circuit and a voltage signal sampling circuit. The current sampling signal circuit includes a current sampling resistor R5, a third resistor R3, a seventh resistor R7, a metering chip U5, a ninth capacitor C9, an eleventh capacitor C11. The current sampling resistor R5 is respectively connected in series with the third resistor R3 and the seventh resistor R7 and then connected to pins 2 and 3 of the metering chip U5. The voltage signal sampling circuit includes a seventeenth resistor R17, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12 and then connected to pin 4 of the metering chip U5. The seventeenth resistor R17 is connected in series with the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11 and the twelfth resistor R12 in sequence and then connected to the fourth pin of the metering chip U5. The model of the metering chip U5 is BL093.

5. The intelligent power consumption statistical socket circuit according to claim 1, characterized in that The relay control module includes a thirteenth resistor R13, a triode Q1 for conduction and a relay JD1. The output end of the WIFI control module is connected to the first end of the thirteenth resistor R13. The second end of the thirteenth resistor R13 is connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the input end of the relay JD1.

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