Remote-control electric leakage protection plug capable of executing automatic detection of fixed period

Abstract

The utility model discloses a remote-control leakage protection plug capable of executing automatic detection of a fixed period, which comprises a remote-control leakage protection plug and an automatic detection unit of the fixed period of the remote-control leakage protection plug, the remote control leakage protection plug fixed period automatic detection unit comprises a tripping mechanism, a microprocessor MCU, an alternating current signal sampling module, an ACDC power supply and a remote control signal detection module, the alternating current signal sampling module sends a collected signal to the MCU, and the MCU sends an on-off control signal to the tripping mechanism to control the tripping mechanism to act. The MCU further receives a remote control signal sent by the remote control signal detection module so as to control the power supply circuit.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field, specifically, relate to a can remote control and carry out fixed period automatic detection's leakage protection plug. BACKGROUND

[0002] At present some high -power electric appliances, such as electric water heater, electric heater, intelligent closestool, dust catcher, electric refrigerator, microwave oven, dishwasher, disinfection cabinet and medical equipment etc. Terminal electric appliance must have leakage protection function, the existing method is to use leakage protection plug (PRCD-portable residual current device) instead of ordinary 3 -phase plug, realizes domestic electric appliance equipment leakage, overcurrent, overvoltage, undervoltage, overload, overtemperature, short circuit etc. When the electric fault occurs, leakage protection plug can cut off power supply momentarily, avoids causing electric appliance damage or because of electric shock causes personal injury accident.

[0003] In order to guarantee the correctness of leakage protection plug action mechanism and the reliability of electric appliance safety power protection, GB20044 requires that leakage protection plug has test (TEST) button and reset (RESET) button, mainly for detecting whether leakage protection plug circuit system and action mechanism keep normal standby state, that is, at least once a month, leakage protection plug is required to send leakage signal by pressing "TEST" button, and leakage protection plug is required to send reset signal by pressing "RESET" button, and the action mechanism executes the recovery power supply action, and the leakage protection plug restores normal power supply. However, in actual use, due to the use habit of users and the installation position, use environment and other factors of leakage protection plug, the circuit system and action mechanism of leakage protection plug cannot be detected at least once a month, so that the action mechanism of leakage protection plug is locked, and when a leakage accident occurs, the protection function cannot be played. Therefore, the technical field urgently needs a leakage protection plug that can automatically detect at a fixed period. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model provides a leakage protection plug that can be remotely controlled and execute fixed period automatic detection, to automatically realize periodic plug leakage automatic detection and action mechanism automatic detection function according to requirements, ensure that the circuit system and action mechanism of leakage protection plug continuously keep in normal standby state, and the detection circuit system failure or action mechanism lock condition cannot occur, and the leakage protection plug can also control the on-off power supply work of leakage protection plug through a remote controller or mobile phone.

[0005] To achieve the above purpose, a leakage protection plug that can be remotely controlled and execute fixed period automatic detection is provided, which comprises a remote control leakage protection plug and a remote control leakage protection plug fixed period automatic detection unit, wherein:

[0006] The remote control leakage protection plug comprises a front shell, a PCB board, an output wire and a tail card, a rear shell, a detection coil, a conductive silver point and a signal probe, wherein the PCB board is fixed in the closed space of the front shell and the rear shell.

[0007] A ground wire plug, a zero fire wire plug, a conductive band and a zero fire wire terminal are welded on the PCB board.

[0008] The PCB board is provided with a remote control leakage protection plug fixed period automatic detection unit.

[0009] The output wire comprises an output wire zero fire wire and an output wire ground wire, one end of the zero fire wire terminal is connected with the output wire zero fire wire, and the ground wire plug is connected with the output wire ground wire; the other end of the zero fire wire terminal is connected with one end of the conductive band, and the other end of the conductive band is provided with a circular conductive silver point.

[0010] One end of the conductive silver point is riveted on the zero fire wire plug, and the other end of the conductive silver point is in contact with the circular conductive silver point on the conductive band.

[0011] The detection coil is provided with the output wire, and is used for detecting whether the output wire leaks electricity.

[0012] The remote control leakage protection plug fixed period automatic detection unit comprises a tripping mechanism, a microprocessor MCU, an optical coupler, a magnetic holding action mechanism, a thyristor Q1, a thyristor Q2, a fire wire input end, a zero wire input end, an alternating current signal sampling module, an ACDC power supply and a remote control signal detection module; the ACDC power supply supplies power for the microprocessor MCU; the microprocessor MCU controls the tripping mechanism to be turned on or turned off to control the on-off of the circuit after receiving the signal sent by the remote control signal detection module; and the alternating current signal sampling module outputs a phase reference for the microprocessor MCU.

[0013] In an embodiment of the utility model, the tripping mechanism is a linkage switch.

[0014] In an embodiment of the utility model, the microprocessor MCU is welded on the PCB board, and the signal probe is installed above the microprocessor MCU and is used for sensing a remote control signal.

[0015] In the embodiment of the utility model, wherein, the magnetic retention action mechanism is a double drive coil, it includes the first drive coil for circuit connection and the second drive coil for circuit disconnection, the left end of the double drive coil connects to the fire input end after the resistance R3 is connected in series, the right end of the double drive coil connects the cathode of diode D8, the anode of diode D8 connects the cathode of thyristor Q1, the anode of thyristor Q1 connects the zero line input end, the anode of diode D7 connects the anode of thyristor Q1, the cathode of diode D7 connects the pin 6 of photocoupler, the pin 4 of photocoupler connects the resistance R7 and then connects the control electrode of thyristor Q1, the pin 1 of photocoupler connects the PORTB5 pin of microprocessor MCU, the pin 2 of photocoupler is grounded, the pin 4 and pin 6 of photocoupler can be turned on after the photocoupler receives the signal, the right end of the double drive coil also connects the anode of diode D1, the cathode of diode D1 connects the anode of thyristor Q2, the control electrode of thyristor Q2 connects the cathode of diode D3, the anode of diode D3 connects the PORTB6 pin of microprocessor MCU, the cathode of thyristor Q2 is grounded.

[0016] In the embodiment of the utility model, wherein, the microprocessor MCU is pre-set with the TEST signal and the RESET signal that can be sent according to the internal clock timing of microprocessor MCU.

[0017] In the embodiment of the utility model, wherein, the alternating current signal sampling module includes: triode Q3, the base of triode Q3 connects the cathode of diode D3 after resistance R6 and resistance R8 are connected in series, the anode of diode D3 connects the PORTB6 pin of microprocessor MCU, the emitter of triode Q3 is grounded, the collector of triode Q3 connects resistance R10, so as to form the current loop when the current reaches the base of triode Q3 through diode D3, resistance R6, resistance R8 when the PORTB6 pin of microprocessor MCU outputs high level, triode emitter is grounded, the collector of triode Q3 outputs the leakage signal.

[0018] In the embodiment of the utility model, wherein, the ACDC power supply includes a bridge rectifier circuit and a voltage stabilizer, the resistance R3, the double drive coil and the resistance R15 are connected in series between the fire input end and the 1 point of the bridge rectifier circuit, the zero line input end is connected with the 2 point of the bridge rectifier circuit, the 4 point of the bridge rectifier circuit is connected with the Vin pin of the voltage stabilizer, the GND pin of the voltage stabilizer is grounded, the Vout pin of the voltage stabilizer outputs 3.3V direct current and is connected to the VDD pin of microprocessor MCU, so as to power the microprocessor MCU.

[0019] In an embodiment of the utility model, wherein, the remote control signal detection module is welded on the PCB board, the remote control signal detection module is the chip with the function of receiving and sending remote control signal, the pin 2 thereof is grounded, and the pin 1 thereof is connected with the PORTE2 pin of the microprocessor MCU.

[0020] In an embodiment of the utility model, wherein, a test key, an indicator lamp and a reset key are respectively electrically connected with the preset contact of the PCB board and welded on the PCB board.

[0021] In an embodiment of the utility model, wherein, the induction remote control signal is at least one of infrared signal, 433Mhz to 2.4Ghz signal, WiFi signal, Bluetooth signal, zigbee signal, lora signal, NBiot narrowband internet of things signal, 4G LTE wideband internet of things cat2 or cat3 or cat4 signal and 2.4G private protocol signal.

[0022] The remote control and fixed period automatic detection leakage protection plug provided by the utility model is compared with the leakage protection plug on the market, the utility model is a leakage protection plug with remote control and automatic leakage function detection, once the leakage or short circuit phenomenon occurs to a certain household appliance connected with the plug, the leakage protection plug can instantaneously disconnect the power supply, and the protection function is provided. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Figure 1 It is the plug appearance structure schematic view of an embodiment of the utility model.

[0025] Figure 2 It is the structure schematic view of the plug after installing the shell of an embodiment of the utility model.

[0026] Figure 3 It is the structure schematic view of the plug PCB board assembly of an embodiment of the utility model.

[0027] Figure 4 It is the electrical schematic diagram of the remote control leakage protection plug of an embodiment of the utility model.

[0028] Figure 5The electrical principle diagram of the leakage protection plug of the embodiment of the utility model is shown in the figure.

[0029] The figure mark explanation: 1-front shell; 2-reset key; 3-test key; 4-indicator lamp; 5-remote control signal detection module; 6-ground plug; 7-zero fire plug; 8-connecting wire and tail clamp; 9-back shell; 10-detection coil; 11-magnetic retention action mechanism; 12-conductive silver point; 13-conductive band; 14-PCB board; 15-signal probe; 16-zero fire wiring terminal 17-indicator lamp. 501-AC power supply, 502-AC current signal sampling module, 503-removing mechanism, 504-ACDC power supply, 505-microprocessor (MCU), 506-remote control signal detection module, 507-load circuit DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Figure 1 The appearance structure schematic diagram of the plug of the embodiment of the utility model is shown in the figure, Figure 2 The structure schematic diagram of the plug after the back shell of the embodiment of the utility model is installed is shown in the figure, Figure 3 The structure schematic diagram of the PCB board assembly of the plug of the embodiment of the utility model is shown in the figure, Figure 4 The electrical principle diagram of the remote control leakage protection plug of the embodiment of the utility model is shown in the figure, Figure 5 The electrical principle block diagram of the leakage protection plug of the embodiment of the utility model is shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The embodiment provides a remote control and executes fixed period automatic detection leakage protection plug, and it includes a remote control leakage protection plug and a remote control leakage protection plug fixed period automatic detection unit, wherein:

[0032] The remote control leakage protection plug is shown in the figures, Figure 1 、 Figure 2 and Figure 3 It includes a front shell 1, a PCB board 14, an output wire and tail clamp 8, a back shell 9, a detection coil 10, a conductive silver point 12 and a signal probe 15, wherein the PCB board 14 is fixed in the combined space of the front shell 1 and the back shell 9.

[0033] The PCB 14 is welded with a reset key 2, a test key 3, an indicator lamp 4, a ground plug 6, a zero fire plug 7, a conductive band 13, and a zero fire terminal 16;

[0034] The PCB 14 is provided with a remote control leakage protection plug fixed period automatic detection unit;

[0035] The output electric wire and the tail card 8, wherein the output electric wire includes an output electric wire zero fire wire, an output electric wire ground wire, the zero fire terminal 16 is connected to the output electric wire zero fire wire at one end, and the ground plug 6 is connected to the output electric wire ground wire; the other end of the zero fire terminal 16 is connected to one end of the conductive band 13, and the other end of the conductive band is provided with a circular conductive silver point;

[0036] One end of the conductive silver point 12 is riveted to the zero fire plug 7, and the other end of the conductive silver point is in contact with the circular conductive silver point on the conductive band 13;

[0037] The detection coil 10 is used to detect whether the output electric wire is leakage by penetrating the output electric wire;

[0038] In the embodiment, the test key 3, the indicator lamp 4 and the reset key 2 are respectively electrically connected with preset contacts of the PCB 14.

[0039] The remote control leakage protection plug fixed period automatic detection unit, as shown in Figure 4 、 Figure 5 , includes a tripping mechanism, a microprocessor MCU (U2) in Figure 4 , an optical coupler (U3), a magnetic holding action mechanism 11, a silicon controlled rectifier Q1, a silicon controlled rectifier Q2, a fire wire input end (L-IN), a zero wire input end (N-IN), an alternating current signal sampling module, an ACDC power supply, and a remote control signal detection module; the ACDC power supply supplies power to the microprocessor MCU, the microprocessor MCU controls the tripping mechanism to control the on-off of the circuit after receiving the signal sent by the remote control signal detection module, and the alternating current signal sampling module outputs a phase reference for the microprocessor MCU.

[0040] The tripping mechanism is a linkage switch; the tripping mechanism is driven by the on-off control signal sent by the microprocessor MCU (U2), and the signal collected by the alternating current signal sampling module is sent to the microprocessor MCU (U2); whether there is leakage or other circuit failure can be determined after the signal is analyzed and processed by the microprocessor MCU (U2), for example, the change of the collected current or voltage value, but not limited to this, and then the tripping mechanism receives the on-off control signal to drive the tripping mechanism to act, and determines whether to turn on or turn off the power supply circuit.

[0041] The microprocessor MCU (U2) is welded on the PCB board 14, and a signal probe 15 is installed above the microprocessor MCU (U2) for sensing a remote control signal. The remote control signal can be at least one of an infrared signal, a 433Mhz to 2.4Ghz signal, a WiFi signal, a Bluetooth signal, a zigbee signal, a lora signal, a NBiot narrowband Internet of Things signal, a 4G LTE wideband Internet of Things cat2 or cat3 or cat4 signal, and a 2.4G private protocol signal. The signal transmitting device can be a remote controller or a mobile phone;

[0042] The magnetic holding action mechanism 11 is a double-drive coil L1 including a first drive coil for connecting a circuit and a second drive coil for disconnecting a circuit;

[0043] The left end of the double-drive coil L1 is connected to the fire input end in series with a resistor R3. The right end of the double-drive coil L1 is connected to the cathode of a diode D8. The anode of the diode D8 is connected to the cathode of a thyristor Q1. The anode of the thyristor Q1 is connected to the zero input end. The anode of a diode D7 is connected to the anode of the thyristor Q1. The cathode of the diode D7 is connected to pin 6 of an optocoupler (U3). Pin 4 of the optocoupler (U3) is connected to the control electrode of the thyristor Q1 after being connected to a resistor R7. Pin 1 of the optocoupler (U3) is connected to the PORTB5 pin of a microprocessor MCU (U2). Pin 2 of the optocoupler (U3) is grounded. When the optocoupler receives a signal, its pin 4 and pin 6 are turned on. The right end of the double-drive coil L1 is also connected to the anode of a diode D1. The cathode of the diode D1 is connected to the anode of a thyristor Q2. The control electrode of the thyristor Q2 is connected to the cathode of a diode D3. The anode of the diode D3 is connected to the PORTB6 pin of the microprocessor MCU (U2). The cathode of the thyristor Q2 is grounded.

[0044] The microprocessor MCU (U2) can send a TEST signal and a RESET signal according to the internal clock timing of the MCU (U2).

[0045] When the microprocessor MCU (U2) receives the TEST signal, the PORTB6 pin of the microprocessor MCU (U2) outputs a high level, and the current reaches the control electrode of the thyristor Q2 through the reversed diode D3. The thyristor Q2 is turned on due to the high level triggering. The current flows through the double drive coil L1 from left to right through the resistor R3 from the live input, and then reaches the anode of the thyristor Q2 through the forward diode D1. The cathode of the thyristor Q2 is grounded. At this time, the current forms a loop. The first drive coil of the double drive coil L1 generates an attraction force due to the current passing through it, and the moving mechanism push rod drives the moving mechanism contact to break, thereby cutting off the power supply. After a preset automatic detection time, for example, 15S, the microprocessor MCU (U2) receives the RESET signal. The PORTB5 pin of the microprocessor MCU (U2) outputs a high level, and the current passes through the resistor R5 to the optocoupler U3 to make it conductive. At this time, the current reaches the control electrode of the thyristor Q1 from the zero line input N_IN through the diode D7, the pin 6 connection of the optocoupler U3, and the resistor R7. Since the optocoupler U3 is conductive, the pin 4 and the pin 6 thereof are connected, and the control electrode of the thyristor Q1 receives a high level to trigger the thyristor Q1 to be conductive. The high level on the zero line input passes through the conductive thyristor Q1 and then flows through the reversed diode D8, and then flows through the second drive coil of the double drive coil L1 from right to left. The double drive coil L1 generates a repulsion force due to the current passing through it, and the moving mechanism push rod drives the moving mechanism contact to close, thereby connecting the power supply.

[0046] The alternating current signal sampling module comprises a transistor Q3. The base of the transistor Q3 is connected to the cathode of a diode D3 in series with a resistor R6 and a resistor R8. The anode of the diode D3 is connected to the PORTB6 pin of the microprocessor MCU. The emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to a resistor R10. When the PORTB6 pin of the microprocessor MCU outputs a high level, the current reaches the base of the transistor Q3 through the diode D3, the resistor R6, and the resistor R8. The current loop is formed after the emitter of the transistor is grounded. The collector of the transistor Q3 outputs a leakage signal for collecting the alternating current voltage waveform as the phase reference of the signal output of the microprocessor MCU (U2).

[0047] The ACDC power supply comprises a bridge rectifier circuit B1, a voltage stabilizer DY1, a firewire input end L_IN connected with a point of the bridge rectifier circuit B1 in series with a resistor R3, a double-drive coil L1 and a resistor R15 in turn, a zero wire input end N_IN connected with a point 2 of the bridge rectifier circuit B1, a point 4 of the bridge rectifier circuit B1 connected with a Vin pin (pin 3) of the voltage stabilizer DY1, a GND pin of the voltage stabilizer DY1 grounded, and a Vout pin (pin 2) of the voltage stabilizer DY1 outputting 3.3V direct current to supply power for a microprocessor MCU (U2) and connected with a VDD pin of the microprocessor MCU (U2).

[0048] The remote control signal detection module 5 (1838T) is welded on a PCB board and has a function of receiving and transmitting remote control signals, a pin 2 of which is grounded, and a pin 1 of which is connected with a PORTE2 pin of the microprocessor MCU (U2).

[0049] Those skilled in the art can understand that the modules or processes in the drawings are not necessarily necessary for implementing the utility model.

[0050] Those skilled in the art can understand that the modules in the device in the embodiments can be distributed in the device in the embodiments according to the embodiment description, or can be changed and located in one or more devices different from the embodiments. The modules in the above embodiments can be combined into one module, or can be further split into multiple sub-modules.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A remote control and fixed cycle automatic detection performing leakage protection plug, characterized in that, The remote leakage protection plug comprises a front shell, a PCB board, an output wire and a tail clamp, a rear shell, a detection coil, a conductive silver dot and a signal probe, wherein the PCB board is fixed in the closed space of the front shell and the rear shell. The PCB board is welded with a ground wire plug, a zero fire wire plug, a conductive belt and a zero fire wire terminal. The PCB board is provided with the remote leakage protection plug fixed period automatic detection unit. The output wire comprises an output wire zero fire wire and an output wire ground wire, one end of the zero fire wire terminal is connected to the output wire zero fire wire, and the ground wire plug is connected to the output wire ground wire. One end of the conductive silver dot is riveted to the zero fire wire plug, and the other end of the conductive silver dot is in contact with the round conductive silver dot on the conductive belt. The detection coil is provided with the output wire, which is used to detect whether the output wire is leaked. The remote leakage protection plug fixed period automatic detection unit comprises a tripping mechanism, a microprocessor MCU, an optical coupler, a magnetic retention action mechanism, a silicon controlled rectifier Q1, a silicon controlled rectifier Q2, a fire wire input end, a zero wire input end, an alternating current signal sampling module, an ACDC power supply and a remote signal detection module. The ACDC power supply supplies power to the microprocessor MCU, the microprocessor MCU receives the signal sent by the remote signal detection module, controls the tripping mechanism to be turned on and off to control the on-off of the circuit, and the alternating current signal sampling module outputs a phase reference for the microprocessor MCU. The tripping mechanism is a linkage switch.

2. The plug of claim 1, wherein, The microprocessor MCU is welded on the PCB board, and the signal probe is installed above the microprocessor MCU for sensing the remote control signal.

3. The plug of claim 1, wherein, The magnetic retention action mechanism is a double drive coil, which comprises a first drive coil for connecting the circuit and a second drive coil for disconnecting the circuit.

4. The plug of claim 1, wherein, The left end of the double drive coil is connected to the fire wire input end after being connected in series with a resistor R3, the right end of the double drive coil is connected to the cathode of a diode D8, the anode of the diode D8 is connected to the cathode of the silicon controlled rectifier Q1, the anode of the silicon controlled rectifier Q1 is connected to the zero wire input end, the anode of a diode D7 is connected to the anode of the silicon controlled rectifier Q1, the cathode of the diode D7 is connected to the pin 6 of the optical coupler, the pin 4 of the optical coupler is connected to the control electrode of the silicon controlled rectifier Q1 after being connected in series with a resistor R7, the pin 1 of the optical coupler is connected to the PORTB5 pin of the microprocessor MCU, the pin 2 of the optical coupler is grounded, and the pins 4 and 6 of the optical coupler can be turned on after the optical coupler receives the signal. The right end of the double drive coil is also connected to the anode of a diode D1, the cathode of the diode D1 is connected to the anode of the silicon controlled rectifier Q2, the control electrode of the silicon controlled rectifier Q2 is connected to the cathode of a diode D3, the anode of the diode D3 is connected to the PORTB6 pin of the microprocessor MCU, and the cathode of the silicon controlled rectifier Q2 is grounded.

5. The plug of claim 4, wherein, The microprocessor MCU is preset with a TEST signal and a RESET signal which can be sent according to the internal clock timing of the microprocessor MCU.

6. The plug of claim 1, wherein, The alternating current signal sampling module comprises a transistor Q3, the base of the transistor Q3 is connected to the cathode of a diode D3 in series with a resistor R6 and a resistor R8, the anode of the diode D3 is connected to the PORTB6 pin of the microprocessor MCU, the emitter of the transistor Q3 is grounded, the collector of the transistor Q3 is connected to a resistor R10, when the PORTB6 pin of the microprocessor MCU outputs a high level, the current passes through the diode D3, the resistor R6 and the resistor R8 to the base of the transistor Q3, the emitter of the transistor is grounded to form a current loop, and the collector of the transistor Q3 outputs a leakage signal.

7. The plug of claim 1, wherein, The ACDC power supply comprises a bridge rectifier circuit and a voltage stabilizer, the resistor R3, the double-drive coil and the resistor R15 are connected in series between the firewire input end and the 1 point of the bridge rectifier circuit, the zero line input end is connected to the 2 point of the bridge rectifier circuit, the 4 point of the bridge rectifier circuit is connected to the Vin pin of the voltage stabilizer, the GND pin of the voltage stabilizer is grounded, the Vout pin of the voltage stabilizer outputs a 3.3V direct current and is connected to the VDD pin of the microprocessor MCU, so as to supply power for the microprocessor MCU.

8. The plug of claim 1, wherein, The remote control signal detection module is welded on the PCB board, the remote control signal detection module is a chip with the function of receiving and transmitting remote control signals, the pin 2 is grounded, and the pin 1 is connected to the PORTE2 pin of the microprocessor MCU.

9. The plug of claim 1, wherein, A test key, an indicator light and a reset key are respectively electrically connected to the preset contacts of the PCB board and welded on the PCB board.

10. The ground fault protection plug of claim 3, wherein, The induction remote control signal is at least one of an infrared signal, a 433Mhz to 2.4Ghz signal, a WiFi signal, a Bluetooth signal, a zigbee signal, a lora signal, a NBiot narrowband Internet of Things signal, a 4G LTE wideband Internet of Things cat2 or cat3 or cat4 signal and a 2.4G private protocol signal.

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