Intelligent socket

Abstract

The utility model discloses an intelligent socket, comprising a socket housing and a control circuit board installed in the socket housing, the control circuit board is provided with an electric quantity metering module, a wireless communication module, a power supply module connected with commercial power, and a socket switch control module respectively connected with the commercial power and the power supply module. The electric quantity metering module and the wireless communication module are connected with the power supply module, and the wireless communication module is respectively connected with the electric quantity metering module and the socket switch control module. According to the intelligent socket of the utility model, the power supply module connected with the commercial power and the socket switch control module respectively connected with the commercial power and the power supply module are arranged on the control circuit board so as to control the start and stop of the work of the socket; an electric quantity metering module and a wireless communication module which are connected with the power supply module are arranged, and the wireless communication module is connected with the electric quantity metering module and the socket switch control module, so that detected current and voltage information is transmitted to the wireless communication module and then sent out, and the state and the power utilization condition of the socket are monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of sockets, in particular to an intelligent socket. Background Art

[0002] A socket, also known as a power socket or a switch socket, refers to a socket into which one or more circuit wiring can be inserted, through which various wiring can be inserted to facilitate connection with other circuits. However, most traditional sockets only have the function of power connection, and fail to monitor the status and power consumption of the socket. They have a single function and low safety. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an intelligent socket to monitor the state and power consumption of the socket.

[0004] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing a smart socket, comprising a socket housing and a control circuit board installed in the socket housing, the control circuit board being provided with a power supply module, a socket switch control module, a power metering module and a wireless communication module, the power supply module being connected to the AC power to convert the AC power into a DC working voltage, the socket switch control module being respectively connected to the AC power and the power supply module, the power metering module and the wireless communication module being connected to the power supply module, and the wireless communication module being respectively connected to the power metering module and the socket switch control module.

[0005] The beneficial technical effect of the utility model is that the intelligent socket of the utility model is provided with a power supply module connected to the AC power on the control circuit board in the socket shell to convert the AC power into a DC working voltage, so as to provide working power for each module of the intelligent socket, and the control circuit board is also provided with a socket switch control module respectively connected to the AC power and the power supply module to control the start and stop of the socket. At the same time, the control circuit board is also provided with an electricity metering module and a wireless communication module connected to the power supply module, and the power supply module provides working voltage for the electricity metering module and the wireless communication module. The wireless communication module is respectively connected to the electricity metering module and the socket switch control module to transmit the current information and voltage information detected by the electricity metering module to the wireless communication module, and send it to the electronic device through the wireless communication module, so as to monitor the status and power consumption of the socket and protect the socket. At the same time, the wireless communication module can receive the socket switch control signal through the electronic device, control the operation of the socket switch control module, and realize remote control of the intelligent socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0007] Figure 1 A schematic diagram of the framework of the smart socket provided by an embodiment of the utility model;

[0008] Figure 2 A circuit diagram of a voltage conversion unit of a power supply module of a smart socket provided by an embodiment of the utility model;

[0009] Figure 3 A circuit diagram of a voltage reduction unit of a power supply module of a smart socket provided by an embodiment of the utility model;

[0010] Figure 4 A circuit diagram of a socket switch control module and a wireless communication module of a smart socket provided in an embodiment of the utility model;

[0011] Figure 5 A circuit diagram of an electric power metering module of a smart socket provided by an embodiment of the utility model;

[0012] Figure 6 A circuit diagram of an indicator light module of a smart socket provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figures 1 to 6 , Figure 1A schematic diagram of the framework of a smart socket provided for an embodiment of the utility model, wherein the smart socket comprises a socket housing 11 and a control circuit board 12 installed in the socket housing 11, wherein the control circuit board 12 is provided with a power supply module 13, a socket switch control module 14, a power metering module 15 and a wireless communication module 16, wherein the power supply module 13 is connected to the mains to convert the mains into a DC working voltage, the socket switch control module 14 is respectively connected to the mains and the power supply module 13, the power metering module 15 and the wireless communication module 16 are connected to the power supply module 13, and the wireless communication module 16 is respectively connected to the power metering module 15 and the socket switch control module 14.

[0015] Among them, the smart socket is provided with a power supply module 13 connected to the mains on the control circuit board 12 in the socket housing 11 to convert the mains into a DC working voltage, so as to provide working power for each module of the smart socket, and the control circuit board 12 is also provided with a socket switch control module 14 respectively connected to the mains and the power supply module 13 to control the start and stop of the socket. At the same time, the control circuit board 12 is also provided with a power metering module 15 and a wireless communication module 16 connected to the power supply module 13, and the power supply module 13 provides working voltage for the power metering module 15 and the wireless communication module 16. The wireless communication module 16 is respectively connected to the power metering module 15 and the socket switch control module 14 to transmit the current information and voltage information detected by the power metering module 15 to the wireless communication module 16, and send it to the electronic device through the wireless communication module 16, so as to monitor the status and power consumption of the socket, and then protect the socket. At the same time, the wireless communication module 16 can receive the socket switch control signal through the electronic device, control the socket switch control module 14 to work, and realize remote control of the smart socket.

[0016] Specifically, in the present embodiment, the power supply module 13 includes a voltage conversion unit, and the voltage conversion unit includes a first diode D1, a second diode D2, a conversion chip U4, a third diode D3, a fifth diode D5, a second inductor L2 and a sixth polarity capacitor C6. The conversion chip U4 can adopt a non-isolated conversion chip with a model of IC-SOP8-PN8009. The city power is connected to the switch control pin SW of the conversion chip U4 after passing through the first diode D1 and the second diode D2. The power pin VDD of the conversion chip U4 is connected to one end of a first resistor R1, one end of a third capacitor C3, the cathode of the fifth diode D5 and the first end of the second inductor L2 after passing through a fourth capacitor C4. The other end of the first resistor R1 is connected to the feedback pin FB of the conversion chip U4, and the other end of the third capacitor C3 is connected to the cathode of the third diode D3. The anode of the third diode D3 is respectively connected to the positive electrode of the sixth polarity capacitor C6 and the second end of the second inductor L2, the anode of the fifth diode D5 is grounded, the second end of the second inductor L2 serves as the output end of the voltage conversion unit, the negative electrode of the sixth polarity capacitor C6 is grounded, the ground pin GND of the conversion chip U4 is connected to the first end of the second inductor L2, the output end of the voltage conversion unit can also be connected to the cathode of the first transient voltage suppression diode TVS1 with the anode grounded, the output end of the voltage conversion unit can also be electrically connected to the twentieth grounding capacitor C20, the twenty-first grounding capacitor C21 and the fourth grounding resistor R4, a first capacitor C1 can be electrically connected between the ground pin GND of the conversion chip U4 and the switch control pin SW, and a second resistor R2 with one end connected to the cathode of the third diode D3 is electrically connected between the feedback pin FB of the conversion chip U4 and the other end of the first resistor R1. The AC power is rectified after passing through the first diode D1 and the second diode D2 to be converted from AC to DC and then converted to voltage through the conversion chip U4. The output end of the voltage conversion unit outputs a 5V voltage, which can be marked as +5V in the circuit diagram.

[0017] Specifically, the switch control pin SW of the conversion chip U4 is connected to the positive electrode of the first electrolytic capacitor EC1 whose negative electrode is connected to the second grounding inductor LB2 after being respectively connected to the mains live wire input terminal AC-L-in through a first inductor L1, the mains live wire input terminal AC-L-in is connected to the first end of the first inductor L1 after being sequentially connected to the fuse, the first diode D1 and the second diode D2, the second end of the first inductor L1 is respectively connected to the switch control pin SW of the conversion chip U4 and the positive electrode of a second electrolytic capacitor EC2, the negative electrode of the second electrolytic capacitor EC2 is grounded, the fuse is connected to the anode of the first diode D1, the fuse and the first A varistor MOV1 is electrically connected between the anode of the diode D1, and one end of the varistor MOV1 is respectively connected to the mains zero line input terminal AC-N-in and the second grounding inductor LB2. The model of the varistor MOV1 can be 10D561. The mains zero line input terminal AC-N-in is connected to the second grounding inductor LB2 to be grounded through the second grounding inductor LB2. The cathode of the first diode D1 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is connected to the first end of the first inductor L1. The cathode of the second diode D2 and the first end of the first inductor L1 are electrically connected to the positive electrode of the first electrolytic capacitor EC1 whose negative electrode is connected to the second grounding inductor LB2.

[0018] Specifically, the power supply module 13 also includes a step-down unit, the input end of the step-down unit is connected to the output end of the voltage conversion unit, the step-down unit includes an LDO voltage regulator chip U1, the voltage input pin VIN of the LDO voltage regulator chip U1 serves as the input end of the step-down unit, the voltage input pin VIN of the LDO voltage regulator chip U1 is connected to the output end of the voltage conversion unit, the voltage output pin VOUT of the LDO voltage regulator chip U1 is connected to a seventh grounding capacitor C7, the working negative voltage pin VSS of the LDO voltage regulator chip U1 is grounded, the voltage output pin VOUT of the LDO voltage regulator chip U1 outputs a 3.3V voltage, which can be recorded as +3.3V in the circuit diagram, and the LDO voltage regulator chip U 1 is used as the output end of the buck unit, the voltage input pin VIN of the LDO voltage regulator chip U1 is connected to the output end of the voltage conversion unit via a connecting inductor LB1, the first end of the connecting inductor LB1 is connected to the output end of the voltage conversion unit, the second end of the connecting inductor LB1 is respectively connected to an eighth grounding capacitor C8, a twenty-fourth grounding capacitor C24 and the voltage input pin VIN of the LDO voltage regulator chip U1, the eighth grounding capacitor C8 and the twenty-fourth grounding capacitor C24 are connected in parallel, and the voltage output pin VOUT of the LDO voltage regulator chip U1 is connected to the power metering module 15 and the wireless communication module 16 to provide working voltage for the power metering module 15 and the wireless communication module 16.

[0019] Specifically, the socket switch control module 14 includes a relay K1, which is a normally open relay. The first connection pin 1 of the coil of the relay K1 is connected to the output end of the voltage conversion unit, and the second connection pin 2 of the coil of the relay K1 is connected to the wireless communication module 16 through a fourth switch tube Q4. The third pin 3 and the fourth pin 4 of the relay K1 are respectively connected to the AC-L-in input end and the AC-L-out output end of the AC-L-out. The relay K1 adopts a normally open relay K1, then When no current flows through the first coil connection pin 1 and the second coil connection pin 2 of the relay K1, the third pin 3 and the fourth pin 4 of the relay K1 are in an open circuit state. When current flows through the first coil connection pin 1 and the second coil connection pin 2 of the relay K1, the relay K1 is energized, and the third pin 3 and the fourth pin 4 of the relay K1 are closed to be in a short circuit state. When the relay K1 is energized, the AC live wire input terminal AC-L-in and the AC live wire output terminal AC-L-out are connected, and the socket input voltage is equal to the socket output voltage. The first coil connection pin 1 of the relay K1 is respectively connected to the cathode of a fourth diode D4 and a sixteenth grounding capacitor C16, the anode of the fourth diode D4 is connected to the second coil connection pin 2 of the relay K1, and the cathode of the fourth diode D4 is also connected to the output end of the voltage conversion unit.

[0020] Specifically, the fourth switch tube Q4 is a triode, the wireless communication module 16 includes a WIFI module M1, the working voltage pin 3V3 of the WIFI module M1 is connected to the voltage output pin VOUT of the LDO voltage regulator chip U1, the tenth GPIO pin GPIO10 of the WIFI module M1 is connected to the base of the fourth switch tube Q4 through a 30th resistor R30, the collector of the fourth switch tube Q4 is connected to the second wiring pin 2 of the coil of the relay K1, the emitter of the fourth switch tube Q4 is connected to a fifth grounding resistor R5, a 25th grounding capacitor C25 and a 34th grounding resistor R34 are electrically connected between the 30th resistor R30 and the base of the fourth switch tube Q4, the 25th grounding capacitor C25 and the 34th grounding resistor R34 are connected in parallel, and a plurality of grounding capacitors in parallel may be electrically connected between the working voltage pin 3V3 of the WIFI module M1 and the voltage output pin VOUT of the LDO voltage regulator chip U1.

[0021] Specifically, the electricity metering module 15 includes an electricity metering chip U5, wherein the electricity metering chip U5 can adopt an electricity metering chip with a built-in clock and no calibration required, which is model BL0942 and is suitable for single-phase multi-function electricity meters, smart sockets, smart home appliances and other applications. It has a high cost performance and can measure parameters such as current, voltage effective value, active power, active electric energy, etc. It can output fast current effective value for overcurrent protection, and can also perform waveform output and other functions. The electricity metering chip U5 can output data through the UART and / or SPI interface, which can fully meet the needs of smart sockets, smart home appliances, single-phase multi-function electricity meters and electricity consumption information big data collection. The electricity metering chip U5 The current analog input positive pin IpI is connected to the mains neutral line output terminal AC-N-out through a ninth resistor R9, and the current analog input negative pin IN1 of the electric energy metering chip U5 is connected to the mains neutral line input terminal AC-N-in through a fifteenth resistor R15. The mains neutral line input terminal AC-N-in and the mains neutral line output terminal AC-N-out are respectively connected to the two ends of a thirteenth resistor R13, so that the output current flows through the thirteenth resistor R13 and a pressure difference is generated at the two ends of the thirteenth resistor R13. The pressure difference information is transmitted to the current analog input positive pin IpI and the current analog input negative pin IN1 of the electric energy metering chip U5 through the corresponding resistors, so that the current can be calculated.A twelfth grounding capacitor C12 is electrically connected between the ninth resistor R9 and the current analog input positive pin IpI of the electric energy metering chip U5, and a fourteenth grounding capacitor C14 is electrically connected between the fifteenth resistor R15 and the current analog input negative pin IN1 of the electric energy metering chip U5. The voltage signal input pin VP of the electric energy metering chip U5 is connected to the mains live wire input terminal AC-L-in through a plurality of resistors connected in series. The number of resistors connected in series may be five, namely R10, R11, R12, R26 and R22. The mains live wire input terminal AC-L-in The first terminal of the power meter U5 is connected to one end of R10, the other end of R10 is connected to one end of R11, and one end of R22 is connected to the voltage signal input pin VP of the power meter U5, so that the AC-L-in input terminal of the mains power is connected to the voltage signal input pin VP of the power meter U5 after passing through R10, R11, R12, R26 and R22 in sequence. Then R10 is used as the first resistor among the multiple series resistors, and R22 is used as the last resistor among the multiple series resistors. The voltage signal input pin VP of the power meter U5 is connected to the voltage signal input pin VP of the multiple series resistors. A fourteenth grounding resistor R14 is electrically connected between the resistors at the end, that is, a fourteenth grounding resistor R14 is electrically connected between the voltage signal input pin VP of the electric energy metering chip U5 and R22, so that after the smart socket is connected to the mains, a pressure difference will be generated at both ends of the fourteenth grounding resistor R14, and the pressure difference information is transmitted to the voltage signal input pin VP of the electric energy metering chip U5, so that the voltage of the smart socket can be calculated. A thirteenth grounding capacitor C13 is electrically connected between the fourteenth grounding resistor R14 and the voltage signal input pin VP of the electric energy metering chip U5. The electric energy metering chip The transmitting pin TX of U5 is connected to the fourth GPIO pin GPIO4 of the WIFI module M1 through a twenty-third resistor R23, and the receiving pin RX of the electric energy metering chip U5 is connected to the fifth GPIO pin GPIO5 of the WIFI module M1 through a twenty-fourth resistor R24 ​​to receive the electric energy information collected and acquired by the electric energy metering chip U5, and the electric energy information includes current, voltage, and power and cumulative power consumption parameters calculated according to the current and voltage, so as to perform protection functions such as overcurrent protection and overvoltage protection, thereby improving the safety of the smart socket.A twenty-seventh resistor R27 is electrically connected between the twenty-third resistor R23 and the fourth GPIO pin GPIO4 of the WIFI module M1, and the other end of the twenty-seventh resistor R27 is connected to the voltage output pin VOUT of the LDO voltage regulator chip U1. A twenty-eighth resistor R28 is electrically connected between the twenty-fourth resistor R24 ​​and the fifth GPIO pin GPIO5 of the WIFI module M1, and the other end of the twenty-eighth resistor R28 is connected to the voltage output pin VOUT of the LDO voltage regulator chip U1. The power pin VDD of the energy metering chip U5 is connected to the voltage output pin VOUT of the LDO voltage regulator chip U1 through a twenty-fifth resistor R25, a twenty-third grounding capacitor C23 is connected between the voltage output pin VOUT of the LDO voltage regulator chip U1 and the twenty-fifth resistor R25, and a tenth grounding capacitor C10 and an eleventh grounding capacitor C11 are connected in parallel between the twenty-fifth resistor R25 and the power pin VDD of the energy metering chip U5, so as to provide the working voltage for the energy metering chip U5 through the voltage outputted from the output end of the step-down unit. The power state output pin CF1 of the energy metering chip U5 is connected to the eighteenth GPIO pin GPIO18 of the WIFI module M1 through a twenty-ninth resistor R29, and the clock pin SCLK of the energy metering chip U5 is electrically connected to a thirty-fifth grounding resistor R35.

[0022] Specifically, the mode selection pin SEL of the energy metering chip U5 is connected to one end of a thermistor NTC1 through a fortieth resistor R40, and the other end of the thermistor NTC1 is grounded, so that the resistance of the thermistor NTC1 can change with the temperature. The energy metering chip U5 calculates the temperature of the location of the thermistor NTC1 according to the voltage change caused by the change in the resistance of the thermistor NTC1, and obtains the temperature information of the socket, which can effectively expand the function of the smart socket and monitor the state of the smart socket more effectively, so that the start and stop control of the socket operation can be performed according to the socket temperature to achieve over-temperature protection. By setting the WIFI module M1 and the energy metering chip U5, and connecting the two to communicate, the Internet of Things function is realized, and the WIFI module M1 can establish communication with the APP installed in the electronic device, so that the WIFI module M1 can send the received voltage, current, power and temperature information transmitted by the energy metering chip U5 to the electronic device for display, so that the user can remotely view the status and power consumption of the socket in real time. The electronic device can be a device that can perform wireless communication, such as a mobile phone and a tablet. The wireless communication module 16 can also have a Bluetooth function, so that it can be wirelessly connected to the electronic device through Bluetooth, and the WIFI module M1 is connected to the relay K1, so that the on-off logic of the relay K1 can be controlled according to the control signal of the received electronic device. When it is necessary to control the relay K1 to be closed, the tenth GPIO pin GPIO10 of the WIFI module M1 outputs a high level, drives the fourth switch tube Q4 to be turned on, and the first wiring pin 1 of the coil and the second wiring pin 2 of the coil of the relay K1 flow through current, the relay K1 is attracted, and the socket outputs voltage; when it is necessary to control the relay K1 to be disconnected, the tenth GPIO pin GPIO10 of the WIFI module M1 outputs a low level, drives the fourth switch tube Q4 to be disconnected, and the first wiring pin 1 of the coil and the second wiring pin 2 of the coil of the relay K1 have no current flowing through, the relay K1 is disconnected, and the socket has no voltage output. At the same time, the WIFI module M1 can realize online upgrading through the software on the electronic device through wireless communication with the electronic device.

[0023] Specifically, the control circuit board 12 is also provided with an indicator light module, the indicator light module includes an LED light group LED1, the LED light group LED1 includes at least one light emitting diode, and the control circuit board 12 is also provided with a light switch unit 101 corresponding to the light emitting diodes one by one. Preferably, the LED light group LED1 may include three light emitting diodes, namely a blue light emitting diode 3B, a red light emitting diode 1R, and a green light emitting diode 2G. Correspondingly, the number of the light switch units 101 is also three, corresponding to the blue light emitting diode 3B, the red light emitting diode 1R, and the green light emitting diode 2G. The anode of the blue light emitting diode 3B, the red light emitting diode 1R and the green light emitting diode 2G are electrically connected to control the corresponding light emitting diode to realize controlling the LED light group LED1 to emit light of the required color and brightness. The anode of the light emitting diode serves as the input end of the LED light group LED1 and is connected to the output end of the voltage conversion unit. Specifically, the anodes of the blue light emitting diode 3B, the red light emitting diode 1R and the green light emitting diode 2G serve as the input end of the LED light group LED1. The output end of the voltage conversion unit is connected to the blue light emitting diode 3B, the red light emitting diode 1R and the green light emitting diode 2G respectively after passing through an eighth resistor R8. The anode of the green light emitting diode 2G is connected to the anode of the green light emitting diode 2G, a seventeenth grounding capacitor C17 and a second transient voltage suppression diode TVS2 with a grounded anode are electrically connected in parallel between the eighth resistor R8 and the input end of the LED light group LED1, the cathode of the light emitting diode serves as the output end of the LED light group LED1 and is connected to the light switch unit 101, then the cathodes of the blue light emitting diode 3B, the red light emitting diode 1R and the green light emitting diode 2G serve as the output end of the LED light group LED1 and are respectively connected to one of the light switch units 101, and the light switch unit 101 The control end is connected to the GPIO port of the WIFI module M1. The GPIO ports of the WIFI module M1 corresponding to each light switch unit 101 are different, so that the brightness of the corresponding light emitting diode and the color emitted by the LED light group LED1 are controlled according to the GPIO port of the WIFI module M1. The GPIO ports of different WIFI modules M1 output corresponding PWM pulse width modulation voltages to the corresponding light emitting diodes to control the brightness of the corresponding light emitting diodes, so that different light colors can be combined according to different PWM pulse width modulation voltages. The user can be prompted to the working status of the socket by setting the indicator light module. Of course, in other embodiments, the LED light group may include one, two, or more than two light emitting diodes, and the colors of different light emitting diodes may be the same.

[0024] Specifically, the light switch unit 101 includes a transient voltage suppression diode and a transistor, the anode of the transient voltage suppression diode is grounded, the cathode of the transient voltage suppression diode and the collector of the transistor are both connected to the cathode of the corresponding light-emitting diode, the base of the transistor is connected to the GPIO port of the WIFI module M1 through a base resistor, the emitter of the transistor is connected to a grounding resistor, and a connection resistor with one end grounded is electrically connected between the connection resistor and the base of the transistor.

[0025] Preferably, a first switch S1 is further provided on the control circuit board 12, and the nineteenth GPIO pin GPIO19 of the WIFI module M1 is connected to one end of the first switch S1 via a sixteenth resistor R16, and the other end of the first switch S1 is grounded, and one end of the first switch S1 is also connected to the cathode of a sixth transient voltage suppression diode TVS6 with an anode grounded, and the cathode of the sixth transient voltage suppression diode TVS6 is also connected to one end of the sixteenth resistor R16, and a fifteenth grounding capacitor C15 is connected between the nineteenth GPIO pin GPIO19 of the WIFI module M1 and the sixteenth resistor R16, and a thirty-first resistor R31 whose one end is connected to the voltage output pin VOUT of the LDO voltage regulator chip U1 can also be electrically connected between the nineteenth GPIO pin GPIO19 of the WIFI module M1 and the sixteenth resistor R16. By setting the first switch S1, the tenth GPIO pin GPIO10 of the WIFI module M1 can be controlled to output high and low levels by manually pressing the first switch S1 to realize control of the smart socket.

[0026] To summarize, the smart socket of the utility model is provided with a power supply module connected to the AC power on the control circuit board in the socket shell to convert the AC power into a DC working voltage, so as to provide working power for each module of the smart socket, and the control circuit board is also provided with a socket switch control module respectively connected to the AC power and the power supply module to control the start and stop of the socket. At the same time, the control circuit board is also provided with a power metering module and a wireless communication module connected to the power supply module, and the power supply module provides working voltage for the power metering module and the wireless communication module. The wireless communication module is respectively connected to the power metering module and the socket switch control module to transmit the current information and voltage information detected by the power metering module to the wireless communication module, and send it to the electronic device through the wireless communication module, so as to monitor the status and power consumption of the socket, and then protect the socket. At the same time, the wireless communication module can receive the socket switch control signal through the electronic device, control the operation of the socket switch control module, and realize remote control of the smart socket.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A smart socket, characterized in that: It includes a socket housing and a control circuit board installed in the socket housing, the control circuit board is provided with a power supply module, a socket switch control module, a power metering module and a wireless communication module, the power supply module is connected to the AC power to convert the AC power into a DC working voltage, the socket switch control module is respectively connected to the AC power and the power supply module, the power metering module and the wireless communication module are connected to the power supply module, and the wireless communication module is respectively connected to the power metering module and the socket switch control module.

2. The smart socket according to claim 1, characterized in that: The power supply module includes a voltage conversion unit, which includes a first diode, a second diode, a conversion chip, a third diode, a fifth diode, a second inductor and a sixth polarity capacitor. The AC power is connected to the switch control pin of the conversion chip after passing through the first diode and the second diode. The power pin of the conversion chip is connected to one end of a first resistor, one end of a third capacitor, the cathode of the fifth diode and the first end of the second inductor respectively after passing through a fourth capacitor. The other end of the first resistor is connected to the feedback pin of the conversion chip, the other end of the third capacitor is connected to the cathode of the third diode, the anode of the third diode is respectively connected to the positive electrode of the sixth polarity capacitor and the second end of the second inductor, the anode of the fifth diode is grounded, the second end of the second inductor serves as the output end of the voltage conversion unit, the negative electrode of the sixth polarity capacitor is grounded, and the ground pin of the conversion chip is connected to the first end of the second inductor.

3. The smart socket according to claim 2, characterized in that: The switch control pin of the conversion chip is connected to the positive electrode of the first electrolytic capacitor whose negative electrode is connected to the second grounding inductor respectively through a first inductor, the mains live line input end is connected to the first end of the first inductor through a fuse, the first diode and the second diode in sequence, the second end of the first inductor is connected to the switch control pin of the conversion chip and the positive electrode of the second electrolytic capacitor respectively, the negative electrode of the second electrolytic capacitor is grounded, the fuse is connected to the anode of the first diode, a varistor whose one end is respectively connected to the mains neutral line input end and the second grounding inductor is electrically connected between the fuse and the anode of the first diode, the cathode of the first diode is connected to the anode of the second diode, the cathode of the second diode is connected to the first end of the first inductor, the cathode of the second diode and the first end of the first inductor are electrically connected to the positive electrode of the first electrolytic capacitor whose negative electrode is connected to the second grounding inductor.

4. The smart socket according to claim 2, characterized in that: The power supply module also includes a step-down unit, the input end of the step-down unit is connected to the output end of the voltage conversion unit, the step-down unit includes an LDO voltage regulator chip, the voltage input pin of the LDO voltage regulator chip serves as the input end of the step-down unit, the voltage input pin of the LDO voltage regulator chip is connected to the output end of the voltage conversion unit, and the voltage output pin of the LDO voltage regulator chip is connected to the power metering module and the wireless communication module.

5. The smart socket according to claim 4, characterized in that: The socket switch control module includes a relay, which is a normally open relay. The first connection pin of the relay coil is connected to the output end of the voltage conversion unit, the second connection pin of the relay coil is connected to the wireless communication module through a fourth switch tube, and the third pin and the fourth pin of the relay are respectively connected to the mains live wire input end and the mains live wire output end.

6. The smart socket according to claim 5, characterized in that: The fourth switch tube is a triode, the wireless communication module includes a WIFI module, the working voltage pin of the WIFI module is connected to the voltage output pin of the LDO voltage regulator chip, the tenth GPIO pin of the WIFI module is connected to the base of the fourth switch tube through a thirtieth resistor, the collector of the fourth switch tube is connected to the second wiring pin of the coil of the relay, and the emitter of the fourth switch tube is connected to a fifth grounding resistor.

7. The smart socket according to claim 6, characterized in that: The electric quantity metering module comprises an electric energy metering chip, wherein the current analog input positive pin of the electric energy metering chip is connected to the mains zero line output terminal via a ninth resistor, the current analog input negative pin of the electric energy metering chip is connected to the mains zero line input terminal via a fifteenth resistor, the mains zero line input terminal and the mains zero line output terminal are respectively connected to the two ends of a thirteenth resistor, the voltage signal input pin of the electric energy metering chip is connected to the mains live line input terminal via a plurality of resistors connected in series, and the voltage signal input pin of the electric energy metering chip is connected to the last one of the plurality of resistors connected in series. A fourteenth grounding resistor is electrically connected between the resistors of the two bits, the sending pin of the electric energy metering chip is connected to the fourth GPIO pin of the WIFI module after passing through a twenty-third resistor, the receiving pin of the electric energy metering chip is connected to the fifth GPIO pin of the WIFI module after passing through a twenty-fourth resistor, the power pin of the electric energy metering chip is connected to the voltage output pin of the LDO voltage regulator chip through a twenty-fifth resistor, and the electric energy status output pin of the electric energy metering chip is connected to the eighteenth GPIO pin of the WIFI module after passing through a twenty-ninth resistor.

8. The smart socket according to claim 7, characterized in that: The mode selection pin of the electric energy metering chip is connected to one end of a thermistor via a fortieth resistor, and the other end of the thermistor is grounded.

9. The smart socket according to claim 6, characterized in that: The control circuit board is also provided with an indicator light module, the indicator light module includes an LED light group, the LED light group includes at least one light emitting diode, and the control circuit board is also provided with a light switch unit corresponding to the light emitting diodes one by one, the anode of the light emitting diode serves as the input end of the LED light group and is connected to the output end of the voltage conversion unit, the cathode of the light emitting diode serves as the output end of the LED light group and is connected to the light switch unit, and the control end of the light switch unit is connected to the GPIO port of the WIFI module.

10. The smart socket according to claim 9, characterized in that: The light switch unit includes a transient voltage suppression diode and a transistor, the anode of the transient voltage suppression diode is grounded, the cathode of the transient voltage suppression diode and the collector of the transistor are both connected to the cathode of the corresponding light emitting diode, the base of the transistor is connected to the GPIO port of the WIFI module through a base resistor, and the emitter of the transistor is connected to a grounding resistor.

Images