Intelligent socket

Abstract

An intelligent socket comprises a control circuit board. A circuit of the control circuit board comprises a voltage conversion module which is used for converting the voltage of an external power supply into a required voltage and supplying power to each module of the intelligent socket. The detection module is used for detecting a detection voltage value and a detection current value which are input into the intelligent socket, calculating output power and outputting an alternating current zero waveform; the power control module is used for supplying power to an external electric appliance and comprises a silicon controlled rectifier which is used for connecting a live wire of an external power supply and a live wire of the intelligent socket; and the main control chip is used for generating a control signal according to the alternating current zero point waveform and controlling the on and off of the silicon controlled rectifier through the control signal. Compared with the prior art, the intelligent socket can reduce the sparking phenomenon.

Description

Technical Field

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

[0002] Electrical outlets are a common feature in today's age of widespread electrical appliances. People often place outlets connected to AC power sources in different locations to power various electrical appliances. For safety and energy conservation, people often disconnect the outlets from the AC power source when an appliance is not in use, then reconnect them when it's time to power it on.

[0003] However, when people turn on or off electrical sockets, especially when the sockets are connected to high-power electrical appliances such as electric heaters and fans, sparks may sometimes appear from the sockets, causing ignition. This can easily damage the electrical appliances or even cause a fire. Utility Model Content

[0004] Based on this, the purpose of the present invention is to overcome the defects or shortcomings of the prior art and provide a smart socket.

[0005] The utility model is achieved through the following technical solutions:

[0006] A smart socket includes a control circuit board provided with a circuit, wherein the circuit of the control circuit board includes:

[0007] A voltage conversion module, used to convert the voltage of the external power supply into the required voltage and supply power to each module of the smart socket respectively;

[0008] A detection module, configured to detect a detection voltage value and a detection current value input to the smart socket, and calculate the output power and the output AC zero-point waveform;

[0009] A power control module, used to supply power to external electrical appliances, including a thyristor for connecting the live wire of the external power supply and the live wire of the smart socket;

[0010] The main control chip is used to generate a control signal according to the zero-point waveform of the alternating current, and control the on and off of the thyristor through the control signal.

[0011] Compared with the existing technology, the smart socket of the present invention uses the main control chip to send control signals to control the conduction and disconnection of the thyristor to realize the connection between the live wire of the external power supply and the live wire of the smart socket, replacing the traditional mechanical switch, thereby reducing the sparking phenomenon caused by friction.

[0012] In some embodiments, the power control module also includes a seventh resistor, an eighth resistor and a high-voltage optocoupler; the input end of the high-voltage optocoupler is connected to the pin of the main control chip to receive the control signal, one of the output ends of the high-voltage optocoupler is connected to the seventh resistor and then connected to the wire for connecting to the live wire of the external power supply, and the other output end is connected to the eighth resistor and then connected to the input end of the thyristor; the control signal is a square wave signal, and the main control chip controls the duty cycle of the square wave signal, and controls the output power of the smart socket by the duty cycle of the square wave signal.

[0013] In some embodiments, the circuit of the control circuit board also includes a switch module, which is connected between the voltage conversion module and the main control chip, and is used to send a trigger signal. The main control chip sends the control signal according to the trigger signal, providing conditions for realizing close or remote switching of the smart socket.

[0014] In some embodiments, the circuit of the control circuit board also includes a temperature detection module, which is connected to the main control chip and is used to detect the temperature of the smart socket and generate a temperature signal. The main control chip MCU sends the control signal according to the temperature signal to prevent the smart socket from overheating.

[0015] In some embodiments, the circuit of the control circuit board also includes a wireless signal transceiver module, which is connected to the main control chip and is used to send the detection voltage value, the detection current value and the output power to the outside, and / or obtain an external input control signal to control the switch module to send the trigger signal, so as to achieve remote control of the on and off of the smart socket.

[0016] In some embodiments, a first indicator light is further included, which is connected to the main control chip and emits light when the thyristor is turned on; a second indicator light is connected to the main control chip and emits light when the wireless signal transceiver module is able to receive an external input control signal, so as to allow the user to connect to the current state of the smart socket.

[0017] In some embodiments, the pins of the main control chip are respectively connected to serial interfaces for communication; the power control module, the detection module, the switch module, the first indicator light, the second indicator light, and the temperature detection module are respectively connected to the serial interfaces, simplifying the circuit through the serial interfaces.

[0018] In some embodiments, the voltage conversion module includes: a first voltage conversion unit, used to convert the current of the external power supply into a current of a first voltage; a second conversion unit, used to convert the current of the first voltage into a current of a second voltage, and the second voltage current is supplied to other modules of the smart socket to obtain the required voltage.

[0019] In some embodiments, the system further includes a shell and a cover plate that cover each other to form an accommodation space, and the control circuit board is arranged in the accommodation space to protect the control circuit board.

[0020] In some embodiments, a cap is provided on the housing, and the cap is used to trigger the switch module to send a trigger signal to achieve close-range control of the on and off of the smart socket.

[0021] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure decomposition of the smart socket of the present invention;

[0023] Figure 2 This is a schematic diagram of the circuit module of the control circuit board of the utility model;

[0024] Figure 3 This is a schematic diagram of the circuit structure of the main control chip of the utility model;

[0025] Figure 4 This is a schematic diagram of the circuit structure of the voltage conversion module, detection module and power control module of the utility model;

[0026] Figure 5 This is a schematic diagram of the circuit structure of the switch module and the temperature detection module of the present utility model. DETAILED DESCRIPTION

[0027] After analyzing existing electrical socket structures, the applicant discovered that these sockets typically use mechanical switches. During the switching process, two metal plates rub against each other, which can easily cause sparks, especially when operating at high power. To address this issue, the present invention proposes a smart socket equipped with a power control module featuring a thyristor (SCR). This module controls the opening and closing of the smart socket based on a triac-phase square wave signal, thereby preventing sparks caused by friction. An embodiment of the smart socket of the present invention is provided below.

[0028] See also Figure 1 In this embodiment, the smart socket of the present invention includes a housing 10 , a cover 20 , an indicator light 30 and a control circuit board 40 .

[0029] The shell 10 is hollow inside and has an opening on one side. The cover plate 20 covers the opening of the shell 10, thereby forming a storage space for the control circuit board 40. The control circuit board 40 is electrically connected to the AC power supply 100 through a power cord, etc. The indicator light 30 is mounted on the control circuit board 40 and electrically connected thereto. A plurality of jacks 11, keycaps 12 and light-transmitting holes 13 are provided on the side of the shell 10 opposite to the cover plate 20. The jack 11 is used for electrically connecting the plug of the electrical appliance 200 to the control circuit board 40. The keycap 12 is used to trigger the buttons on the control circuit board 40. The light-transmitting hole 13 is close to the indicator light 30 and is used to transmit the light emitted by the indicator light 30. The indicator light 30 includes a first indicator light LED 1 that can emit green light and a second indicator light LED 2 that can emit red light. When the user long-presses the keycap 12 for more than two seconds, the button of the control circuit board 40 is triggered and the smart socket is turned on. The smart socket supplies power to the electrical appliance 200, and the first indicator light 31 is illuminated. When the user long-presses the keycap 12 for more than two seconds again, the button of the control circuit board 40 is triggered again to switch its output power. Alternatively, the user controls the control circuit board 40 to adjust the duty cycle of the triac-phase square wave signal by receiving a wireless signal from a host computer (e.g., a mobile phone, tablet computer, or PC), thereby adjusting the output power of the smart socket. The second indicator light 32 is illuminated. In this embodiment, the electrical appliance 200 can be an LED lamp, an electric fan, or an electric heater, etc., as known in the art. One or more plugs of the electrical appliances 200 are connected in parallel or in series to the control circuit board 40. By adjusting the output power of the smart socket, the brightness of the LED lamp, the speed of the electric fan, and the temperature of the electric heater can be adjusted accordingly.

[0030] See also Figure 2 The control circuit board 40 is provided with a circuit, including a main control chip MCU, a voltage conversion module E1, a detection module E2, a power control module E3, a switch module E4, a temperature detection module E5 and a wireless signal transceiver module E6.

[0031] The main control chip MCU is used to generate a control signal based on the AC zero-point waveform detected by the detection module E2 to control the on / off state and output power of the power control module E3. In this embodiment, the control signal is a triac-phase square wave signal. The main control chip MCU adjusts the duty cycle of the triac-phase square wave signal based on the required power.

[0032] The voltage conversion module E1 is connected between the power supply end of the main control chip MCU and the external AC power supply 100, and is used to convert the voltage of the AC power supply 100 into the required voltage and respectively supply power to other functional modules such as the main control chip MCU, the detection module E2, the power control module E3, the temperature detection module E5 and the wireless signal transceiver module E6.

[0033] The detection module E2 is used to detect the detection voltage value and the detection current value input by the AC power supply 100 to the smart socket, calculate the output power, and output the AC zero-point waveform to the main control chip MCU.

[0034] The power control module E3 is connected to the external electrical appliance 200 and is used to control the smart socket to be turned on and off according to the control signal to stop outputting power, or to control the output power of the smart socket.

[0035] The switch module E4 is connected between the voltage conversion module E1 and the main control chip MCU, and is used to trigger the main control chip MCU to send the control signal to the power control module E3 according to the trigger signal key of the button on the control circuit board 40, so as to control the on and off of the power control module E3 and the change of the output power.

[0036] The temperature detection module E5 is connected to the main control chip MCU and is used to detect the temperature of the smart socket and generate a temperature signal TEMP_DET. The main control chip MCU sends the control signal according to the temperature signal to control the on and off of the power control module E3 and the change of the output power.

[0037] The wireless signal transceiver module E6 is connected to the main control chip MCU and is used to transmit the detection voltage value, detection current value and output power value detected by the detection module E2 to the user's receiving host computer via wireless signals, and / or obtain the control signal input by the user through wireless signals to control the on and off of the smart socket and adjust the output power.

[0038] Specifically, the power supply end of the main control chip MCU is connected to the output end of the voltage conversion module E1, and is powered by the voltage conversion module E1. The pins of the main control chip MCU are connected to 15 serial interfaces J for communication, and the output end of the voltage conversion module E1 is connected to the first interface J1 to power other interfaces; the second interface J2 is used for grounding; the third interface J3 is connected between the GPIO3 pin of the main control chip MCU and the switch module E4, and is used to send the trigger signal key of the switch module E4 to the main control chip MCU; the fourth interface J4 is connected between the first indicator LED1 and the GPIO1 pin of the main control chip MCU, and the first indicator LED1 is connected to the output end of the voltage conversion module E1 after connecting to the second resistor R22. The fifth interface J5 is connected between the second indicator LED2 and the GPIO5 pin of the main control chip MCU, and the second indicator LED2 is connected to the output end of the voltage conversion module E1 after connecting the second resistor R21, and is used to supply power to the second indicator LED2 when the smart socket can adjust the power; the sixth interface J6 is connected between the GPIO6 pin of the main control chip MCU and the temperature detection module E5, and is used to send the temperature signal of the temperature detection module E5 to the main control chip MCU; the seventh interface J7 is connected to the main control chip MCU. The eighth interface J8 is connected between the GPIO8 pin of the main control chip MCU and the power control module E3, and is used to send the control signal of the main control chip MCU to the power control module E3; the ninth interface J9 is connected to the GPIO9 pin of the main control chip MCU; the tenth interface J10 is connected to the GPIO10 pin of the main control chip MCU; the first interface J11 is connected to the GPIO11 pin of the main control chip MCU; the first second interface J12 is connected between the GPIO0 pin of the main control chip MCU and the detection module E2, and is used to send the control signal of the main control chip MCU to the power control module E2 The output AC zero-point waveform is sent to the main control chip MCU; the first three interfaces J13 are connected between the GPIO4 of the main control chip MCU and the detection module E2, and are used to send the serial clock signal of the detection module E2 to the main control chip MCU; the first four interfaces J14 are connected between the GPIO18 pin of the main control chip MCU and the detection module E2, and the first five interfaces J15 are connected between the GPIO19 pin of the main control chip MCU and the detection module E2, and are respectively used for the main control chip MCU to read the detection current value, the detection voltage value and the output power from the detection module E2.

[0039] The voltage conversion module E1 includes a first voltage conversion unit E11 and a second voltage conversion unit E12 electrically connected to each other. The first voltage conversion unit E1 is used to convert the current of the AC power source 100 into a current of a first voltage, and the second voltage conversion unit E12 is used to convert the current of the first voltage into a current of a second voltage for supply to the electrical device 200. In this embodiment, the first voltage is 5V and the second voltage is 3.3V.

[0040] The first voltage conversion unit E11 includes a first voltage conversion chip U1, a varistor VDR, a first diode D1, a second diode D2, a third diode D3, a first electrolytic capacitor EC1, a second electrolytic capacitor EC2, a third electrolytic capacitor EC3, a fourth inductor L4, a fifth inductor L5, a first third resistor R13, a first fifth resistor R15, a first sixth resistor R16, a first ninth resistor R19, a fourth capacitor C4, and a fifth capacitor C5. The first voltage conversion chip U1 has eight pins. The anode of the second diode D2 is connected to the live wire of the AC power supply 100, and the cathode is connected to one end of the fourth inductor L4. The other end of the fourth inductor L4 is connected in parallel to the four DRAIN pins of the first voltage conversion chip U1. One end of the varistor VDR is connected in parallel to the anode of the second diode D2, and the other end is grounded. One end of the first electrolytic capacitor EC1 and the second electrolytic capacitor EC2 are respectively connected in parallel to the two ends of the fourth inductor L4. The other ends of the first electrolytic capacitor EC1 and the second electrolytic capacitor EC2 are connected in parallel to ground. The GND pin of the first voltage conversion chip U1 is connected in series with the fifth inductor L5 and the third electrolytic capacitor EC3, and then to ground. The VDD pin of the first voltage conversion chip U1 is connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 is connected in parallel between the GND pin of the first voltage conversion chip U1 and the fifth inductor L5. The CS pin of the first voltage conversion chip U1 is connected to one end of the first five resistors R15, and the other end of the first five resistors R15 is connected in parallel between the GND pin of the first voltage conversion chip U1 and the fifth inductor L5. The FB pin of the first voltage conversion chip U1 is connected to one end of the first six resistors R16, and the other end of the first six resistors R16 is connected in parallel between the GND pin of the first voltage conversion chip U1 and the fifth inductor L5. One end of the first three resistors R13 is connected in parallel between the FB pin of the first voltage conversion chip U1 and the first six resistors R16, and the other end is connected to the cathode of the first diode D1, and the anode of the first diode D1 is connected to the third electrolytic capacitor EC3. The third diode D3, the first nine-resistor R19 and the third electrolytic capacitor EC3 are connected in parallel, and the anode of the third diode D3 is grounded. The fourth capacitor C4 is connected in parallel between the cathode of the third diode D3 and the cathode of the first diode D1.

[0041] The second voltage conversion unit E12 includes a second voltage conversion chip U3, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, and a first capacitor C11. The second voltage conversion chip U3 has four pins. The anode of the first diode D1 of the first voltage conversion unit E11 is connected to the VIN pin of the second voltage conversion chip U3 to input a current having the first voltage into the second voltage conversion unit E12. One end of the eighth capacitor C8 and the ninth capacitor C9 are connected in parallel to the VIN pin of the second voltage conversion chip U3, and the other ends are connected in parallel to the GND pin of the second voltage conversion chip U3 and grounded. The VOUT pin and the TAB pin of the second voltage conversion chip U3 are connected in parallel. The tenth capacitor C10 and the first capacitor C11 are connected in parallel to the VOUT pin of the second voltage conversion chip U3, and the other ends are connected in parallel to the GND pin of the second voltage conversion chip U3. The VOUT pin of the second voltage conversion chip U3 serves as the output terminal of the voltage conversion module E1 and outputs a current having the second voltage.

[0042] The detection module E2 includes a detection chip U2, a second resistor R2, a fifth resistor R5, a sixth resistor R6, a first fourth resistor R14, a first seventh resistor R17, a first eighth resistor R18, a twentieth resistor R20, a pressure reducing resistor group, a second capacitor C2, a third capacitor C3, a sixth capacitor C6 and a seventh capacitor C7.

[0043] The detection chip U2 has 10 pins. The second resistor R2 is connected to the neutral line of the AC power supply 100 and to ground. The IN pin and IP pin of the detection chip U2 are respectively connected to the two ends of the second resistor R2. The fifth resistor R5 is connected between the IN pin of the detection chip U2 and the second resistor R2. The sixth resistor R6 is connected between the IP pin of the detection chip U2 and the second resistor R2. One end of the second capacitor C2 is connected between the fifth resistor R5 and the IN pin of the detection chip U2, and the other end is grounded. One end of the third capacitor C3 is connected between the sixth resistor R6 and the IP pin of the detection chip U2, and the other end is grounded.

[0044] One end of the pressure reducing resistor group is connected to the live wire of the AC power supply 100, and the other end is connected to one end of the first four resistors R14, and the other end of the first four resistors R14 is grounded. The pressure reducing resistor group is used for voltage division. In this embodiment, the pressure reducing resistor group is composed of a third resistor R3, a fourth resistor R4, a ninth resistor R9, a first first resistor R11, and a first second resistor R12 connected in series. The sixth capacitor C6 is connected in parallel to both ends of the first four resistors R14 to perform voltage division. The VP pin and the GND pin of the detection chip U2 are respectively connected to both ends of the first four resistors R14, and the GND pin of the detection chip U2 is grounded.

[0045] The VDD pin of the detection chip U2 is connected to one end of the seventh capacitor C7, and the other end of the seventh capacitor C7 is grounded. The output end of the voltage conversion module E1 is connected to the VDD pin of the detection chip U2 for power supply.

[0046] The RX / SDI pin of the detection chip U2 is connected to the first eight resistors R18 and then to the GIPO18 pin of the main control chip MCU. The TX / SDO pin is connected to one end of the first seven resistors R17 and to the GIPO19 pin of the main control chip MCU, and is powered by the voltage conversion module E1.

[0047] During use, the voltage across the second resistor R2 is detected through the IN and IP pins of the detection chip U2, and the voltage value is converted into the detection current value. The VP pin of the detection chip U2 detects the voltage of the first four resistors R14 after voltage division, thereby calculating the detection voltage value, and then calculating the input power from the detection current value and the detection voltage value. The main control chip MCU reads the detection current value, the detection voltage value, and the input power through the RX / SDI and TX / SDO pins of the detection chip U2.

[0048] The SCLK pin of the detection chip U2 is connected to the 20th resistor R20 and then to the GIPO4 pin of the main control chip MCU, and is connected to the output end of the voltage conversion module E1 and is powered by the voltage conversion module E1.

[0049] The power control module E3 includes a thyristor Q1, a seventh resistor R7, an eighth resistor R8, a tenth resistor R10, and a high-voltage optocoupler PC1. The thyristor Q1 is positioned between the live wire of the AC power source 100 and the live wire of the smart socket. The anode of the diode at the input end of the high-voltage optocoupler PC1 is connected to the GIPO2 pin of the main control chip MCU to receive control signals from the main control chip MCU, and the cathode of the diode at the input end of the high-voltage optocoupler PC1 is connected to the tenth resistor R10 and then to ground. One output end of the high-voltage optocoupler PC1 is connected to the seventh resistor R7 and then to a wire connected to the live wire of the AC power source 100. The other output end is connected to the eighth resistor R8 and then to the input end of the thyristor Q1. When the high-voltage optocoupler PC1 is turned on or off according to the control signal from the main control chip MCU, it controls the conduction or shutoff of the thyristor Q1, thereby achieving conduction and shutoff between the live wire of the AC power source 100 and the live wire of the smart socket. Furthermore, the duration of the thyristor Q1 being on or off can be controlled according to the Triac-phase square wave duty cycle of the control signal, thereby controlling the magnitude of the output power.

[0050] The switch module E4 includes a switch button SW1. This switch button SW1 is connected to the GPIO3 pin of the main control chip MCU, inputting a high-level trigger signal key to the main control chip MCU, and is powered by the output terminal of the voltage conversion module E1. When a user presses the keycap 12, the switch button SW1 is triggered, and the trigger signal key changes from a high level to a low level. The main control chip MCU then switches functions based on the low-level trigger signal key.

[0051] The temperature detection module E5 includes a temperature measurement chip CN1, a second resistor R24, and a temperature sensor (not shown). The temperature sensor is a conventional temperature detection device, equipped with a thermistor for detecting the temperature coefficient inside the smart socket. The thermistor is connected to the temperature measurement chip CN1. The VCC pin of the temperature measurement chip CN1 is connected to the second resistor R24 ​​and then to the GIPO6 pin of the main control chip MCU. The module transmits the temperature signal TEMP_DET to the main control chip MCU and is powered by the voltage conversion module E1. When the temperature inside the smart socket rises, the thermistor resistance of the temperature sensor decreases accordingly, generating a temperature signal TEMP_DET with a correspondingly decreasing voltage. The main control chip MCU detects the temperature change inside the smart socket by detecting the temperature signal TEMP_DET. When the temperature signal TEMP_DET exceeds a threshold, the main control chip MCU controls the smart socket to shut down.

[0052] The wireless signal transceiver module E6 can be any module capable of transmitting and receiving wireless signals in the prior art. For example, in this embodiment, the main control chip MCU uses an Espressif ESP32 module, model ESP8684-MINI-1, which has a built-in Bluetooth antenna and WiFi signal transceiver, providing WiFi and Bluetooth capabilities, enabling communication between the user's host computer and the main control chip MCU. Through the wireless signal transceiver module E6, the user can obtain the smart socket's power usage, voltage, and current status, and control the smart socket's operation through an app or the like.

[0053] In addition, in this embodiment, the model of the first voltage conversion chip U1 is KP15052, the model of the detection chip U2 is BL0942, the model of the second voltage conversion chip U3 is TLV117LV33, the model of the high-voltage optocoupler PC1 is MOC3020, and the model of the diode is ES1J.

[0054] Compared with the existing technology, the smart socket of the present invention has the following advantages:

[0055] 1. It can reduce the sparking phenomenon caused by friction, monitor its internal temperature, and has over-temperature, over-voltage and over-current protection functions, so it is safer;

[0056] 2. It can control the output power, thereby controlling the speed, brightness, heating temperature, etc. of the connected electrical appliances;

[0057] 3. Users can control the machine from close range or remotely, and the operation is convenient;

[0058] 4. Users can easily obtain the working status of the smart socket, which is very intelligent.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0060] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A smart socket, comprising a control circuit board provided with a circuit, characterized in that: The circuit of the control circuit board includes: A voltage conversion module, used to convert the voltage of the external power supply into the required voltage and supply power to each module of the smart socket respectively; A detection module, configured to detect a detection voltage value and a detection current value input to the smart socket, and calculate the output power and the output AC zero-point waveform; A power control module, used to supply power to external electrical appliances, including a thyristor for connecting the live wire of the external power supply and the live wire of the smart socket; The main control chip is used to generate a control signal according to the zero-point waveform of the alternating current, and control the on and off of the thyristor through the control signal.

2. The smart socket according to claim 1, wherein: The power control module also includes a seventh resistor, an eighth resistor and a high-voltage optocoupler; the input end of the high-voltage optocoupler is connected to the pin of the main control chip to receive the control signal, one of the output ends of the high-voltage optocoupler is connected to the seventh resistor and then connected to the wire for connecting to the live wire of the external power supply, and the other output end is connected to the eighth resistor and then connected to the input end of the thyristor; the control signal is a square wave signal, and the main control chip controls the duty cycle of the square wave signal.

3. The smart socket according to claim 1, wherein: The circuit of the control circuit board also includes: The switch module is connected between the voltage conversion module and the main control chip and is used to send a trigger signal, and the main control chip sends the control signal according to the trigger signal.

4. The smart socket according to claim 3, characterized in that: The circuit of the control circuit board also includes: The temperature detection module is connected to the main control chip and is used to detect the temperature of the smart socket and generate a temperature signal. The main control chip MCU sends the control signal according to the temperature signal.

5. The smart socket according to claim 4, characterized in that: The circuit of the control circuit board also includes: A wireless signal transceiver module is connected to the main control chip and is used to send the detection voltage value, the detection current value and the output power to the outside, and / or obtain an external input control signal to control the switch module to send the trigger signal.

6. The smart socket according to claim 5, characterized in that: Also includes: A first indicator light, connected to the main control chip, and emitting light when the thyristor is turned on; The second indicator light is connected to the main control chip and emits light when the wireless signal transceiver module is able to receive an external control signal.

7. The smart socket according to claim 6, characterized in that: The pins of the main control chip are respectively connected to serial interfaces for communication; the power control module, the detection module, the switch module, the first indicator light, the second indicator light, and the temperature detection module are respectively connected to the serial interfaces.

8. The smart socket according to claim 1, wherein: The voltage conversion module includes: a first voltage conversion unit, configured to convert the current of the external power source into a current of a first voltage; The second conversion unit is configured to convert the current of the first voltage into the current of a second voltage, and the second voltage and current are supplied to other modules of the smart socket.

9. The smart socket according to claim 3, characterized in that: Also includes: A housing and a cover plate are covered with each other to form an accommodating space, and the control circuit board is arranged in the accommodating space.

10. The smart socket according to claim 9, characterized in that: Also includes: A cap is provided on the housing, and the cap is used to trigger the switch module to send a trigger signal.

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