CN205193482U - Electrical shutoff control circuit and safe socket are led to to intelligence - Google Patents

Electrical shutoff control circuit and safe socket are led to to intelligence Download PDF

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Publication number
CN205193482U
CN205193482U CN201520885707.5U CN201520885707U CN205193482U CN 205193482 U CN205193482 U CN 205193482U CN 201520885707 U CN201520885707 U CN 201520885707U CN 205193482 U CN205193482 U CN 205193482U
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CN
China
Prior art keywords
control circuit
module
triode
electric control
termination
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Expired - Fee Related
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CN201520885707.5U
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Chinese (zh)
Inventor
许荣林
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Dongguan Xuancai Photoelectricity Technology Co Ltd
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Dongguan Xuancai Photoelectricity Technology Co Ltd
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Priority to CN201520885707.5U priority Critical patent/CN205193482U/en
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Publication of CN205193482U publication Critical patent/CN205193482U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model is suitable for an electrical safety protects the field, provides an electrical shutoff control circuit and safe socket are led to to intelligence, and this intelligence is led to the electrical shutoff control circuit and is included: alternating current to the input carries out the step -down rectifier and exports galvanic step -down rectifier module, whether the detection distance that feeds back according to the ultrasonic detection signal of its transmission is greater than the response lag, and output is high / low level signal's ultrasonic detection module, convert high / low level signal the level conversion module of logical electrical shutoff control signal to, according to leading to the electrical shutoff control signal, realize the interchange electronic switch who switches on / end. The utility model discloses an ultrasonic detection signal of ultrasonic detection module transmission detects the distance between the human and intelligent electrical shutoff control of the expert circuit to whether detection distance according to the feedback is greater than the response lag, realizes leading to electrical shutoff control to alternating current power supply's intelligence, effectively avoids direct contact human and alternating current power supply, has thoroughly rootd out the injury of electric current to the human body, has guaranteed electrical safety.

Description

A kind of intelligently connecting or disconnecting electric control circuit and safety socket
Technical field
The utility model belongs to Electrical Safety protection field, particularly relates to a kind of intelligently connecting or disconnecting electric control circuit and safety socket.
Background technology
Along with the development and progression of science and technology, the life more and more modernization of people, the electric equipment products of the daily production of various aspect people and life emerge in an endless stream.
But; these electric equipment products also can cause certain Electrical Safety hidden danger while bringing good days experience; particularly by the electric equipment products of the high pressure such as civil power or commercial power ac power supply; usual meeting causes user to get an electric shock due to improper use or negligence, causes casualties.Earth leakage circuit-breaker used on the market at present, is utilize to promote protection switch by the leakage current of human body, cannot eradicates the injury to human body.
Utility model content
The purpose of this utility model is to provide a kind of intelligently connecting or disconnecting electric control circuit and safety socket; be intended to solve earth leakage circuit-breaker used on the market at present; be utilize to promote protection switch by the leakage current of human body, the problem of the injury to human body cannot be eradicated.
The utility model is achieved in that a kind of intelligently connecting or disconnecting electric control circuit, with the live wire of AC power and zero line is connected, be electricity consumption load supplying, described intelligently connecting or disconnecting electric control circuit comprises:
First input end connects zero line described in described live wire, the second input termination, and the alternating current of input is carried out to step-down rectifier and exports galvanic step-down rectifier module by its DC output end;
Whether zero line described in DC output end, ground connection termination described in power supply termination, be greater than response lag according to the detecting distance that its ultrasonic testing signals of launching is fed back, control the ultrasound examination module that its level output end exports high/low level signal;
DC output end described in level output end, power supply termination described in input termination, to convert described high/low level signal to on/off electric control signal and the level switch module exported by its control end;
Described in input termination, the control end of level switch module described in live wire, output termination electricity consumption load, control termination, with according to described on/off electric control signal, realizes the electronic AC switch of conduction and cut-off.
Preferably, described step-down rectifier module comprises loop resistance R1, decompression capacitor C1, commutation diode D1, stabilivolt D2 and filter capacitor C2, wherein, one end of decompression capacitor C1 is the first input end of described step-down rectifier module, the positive pole of the other end and commutation diode D1 and the negative pole of stabilivolt D2 connect altogether, the negative pole of commutation diode D1 and the positive pole of filter capacitor C2 connect the DC output end forming described step-down rectifier module altogether, the positive pole of stabilivolt D2 and the negative pole of filter capacitor C2 connect the second input end forming described step-down rectifier module altogether, loop resistance R1 is connected in parallel on the two ends of decompression capacitor C1.
Preferably, described ultrasound examination module is ultrasound chip, and the frequency range of its ultrasonic testing signals of launching is 13MHz ~ 40MHz, and response lag is 25mm ~ 75mm.
Preferably, described level switch module comprises NPN type triode Q1, PNP type triode Q2, biasing resistor R2 and biasing resistor R3, wherein, the base stage of triode Q1 connects one end of biasing resistor R2, the power end of the very described level switch module of current collection, collector also connects the base stage of triode Q2 through biasing resistor R3, the other end of biasing resistor R2 is the input end of described level switch module, the control end of the very described level switch module of transmitting of triode Q2, the emitter of triode Q1 and the collector of triode Q2 connect the output terminal forming described level switch module altogether.
Preferably, described level switch module also comprises clamp capacitor C3 and pull-up resistor R4, wherein, the power end of one end of clamp capacitor C3 and described DC output end and described ultrasound examination module connects altogether, the collector of another termination triode Q1, and the emitter of DC output end, the other end and triode Q2 described in pull-up resistor R4 mono-termination and the control end of described electronic AC switch connect altogether.
Preferably, described intelligently connecting or disconnecting electric control circuit also comprises the filtration module between the control end being connected to described level switch module, the control end of described electronic AC switch and described zero line.
Preferably, described filtration module comprises resistance R5 and electric capacity C4, and wherein, the control end of resistance R5 one end and described level switch module and the control end of described electronic AC switch connects altogether, zero line described in another termination, electric capacity C4 is connected in parallel on resistance R5 two ends.
Preferably, described electronic AC switch is bidirectional triode thyristor D3, and its first anode, second anode and control pole be the input end of corresponding described electronic AC switch, output terminal and control end respectively.
Preferably, described intelligently connecting or disconnecting electric control circuit also comprises the fuse be connected on described live wire.
The utility model also provides a kind of safety socket, and as with the web member between electric loading and AC power, described safety socket comprises the intelligently connecting or disconnecting electric control circuit as described in front any one.
Compared with prior art, beneficial effect is the utility model:
By the ultrasonic testing signals that ultrasound examination module is launched, carry out the distance between human body and described intelligently connecting or disconnecting electric control circuit, and whether be greater than response lag according to the detecting distance of feedback, conduction and cut-off control is carried out to electronic AC switch, thus the intelligently connecting or disconnecting electric control realized AC power, human body effectively can be avoided to contact with the direct of AC power, thoroughly eradicated the injury of electric current to human body, ensure that Electrical Safety; By arranging step-down rectifier module in AC power and between ultrasound examination module, level switch module and electronic AC switch, for carrying out step-down rectifier to AC power, for ultrasound examination module, level switch module and electronic AC switch provide galvanic current, to ensure the normal operation of circuit, improve the stability of circuit; Carried out the distance of human body distance intelligently connecting or disconnecting electric control circuit by ultrasound examination module, be quick on the draw, accuracy of detection is high, effectively can improve the sensitivity of described intelligently connecting or disconnecting electric control circuit, thus effective guarantee Electrical Safety; The control system of switching on or off electricity to AC power is realized by AC. electronic switching module, with low cost and be quick on the draw; By arranging filtration module and clamp capacitor C3, can interference noise effectively in filtering circuit; Biasing resistor R2, biasing resistor R3 and pull-up resistor R4, for preventing the signal source overload be added on triode Q1 and triode Q2, ensure its stability; By inline fuse on live wire, can when circuital current is excessive auto power off, ensure circuit safety.
Accompanying drawing explanation
Fig. 1 is the basic structure block diagram of the intelligently connecting or disconnecting electric control circuit that the utility model embodiment provides;
Fig. 2 is the circuit theory diagrams of the intelligently connecting or disconnecting electric control circuit that preferred embodiment of the present utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the basic structure block diagram of the intelligently connecting or disconnecting electric control circuit that the utility model embodiment provides.
As shown in Figure 1, the intelligently connecting or disconnecting electric control circuit 100 that the utility model embodiment provides, with the live wire L of AC power 200 and zero line N is connected, be electricity consumption load supplying 300, intelligently connecting or disconnecting electric control circuit 100 comprises step-down rectifier module 10, ultrasound examination module 20, level switch module 30 and electronic AC switch 40.
AC power 200 refers to that voltage is 110V/220V/380V, frequency is the industrial-frequency alternating current of 50Hz/60Hz.In the present embodiment, preferred voltage is 220V, frequency is the industrial-frequency alternating current of 50Hz.
The first input end of step-down rectifier module 10 is started to exchange fire line L, the second input terminal connecting zero line N, carries out rectification step-down and export direct current by its DC output end to the alternating current of input.
The DC output end of the power supply termination step-down rectifier module 10 of ultrasound examination module 20, ground connection terminal connecting zero line N, level output end connect the input end of level switch module 30, whether be greater than response lag according to the detecting distance that its ultrasonic testing signals of launching is fed back, control its level output end and export high/low level signal.
In a particular application, the frequency range of the ultrasonic testing signals that ultrasound examination module 20 is launched is 13MHz ~ 40MHz, and response lag is 25mm ~ 75mm.In the present embodiment, preferred flat rate scope is 27MHz, and response lag is the ultrasound chip of 50mm.
The level output end of the input termination ultrasound examination module 20 of level switch module 30, the DC output end of power supply termination step-down rectifier module 10, the control end exporting terminal connecting zero line N, control termination electronic AC switch 40, converted to on/off electric control signal with the high/low level signal exported by the level output end of ultrasound examination module 20 and exported by its control end.
The input end of electronic AC switch 40 start to exchange fire line L, export termination electricity consumption load 300, control end and the DC output end of step-down rectifier module 10 and the control end of level switch module 30 connects altogether, with the on/off electric control signal exported according to the control end of level switch module 30, realize conduction and cut-off.
When ultrasound examination module 20 detects the distance > 50mm of human body distance intelligently connecting or disconnecting electric control circuit 100, the level output end of ultrasound examination module 20 exports high level signal, the control end of level switch module 30 is made to export energising control signal, thus make electronic AC switch 40 conducting, and then make the live wire L of AC power 200 and connect by electric loading 300, use electric loading 300 to be energized;
When ultrasound examination module 20 detects the distance≤50mm of human body distance intelligently connecting or disconnecting electric control circuit 100, level output end output low level (0 level) signal of ultrasound examination module 20, the control end of level switch module 30 is made to export power down control signal, thus electronic AC switch 40 is ended, and then make the live wire L of AC power 200 and disconnect by electric loading 300, use electric loading 300 power-off.
Fig. 2 is the circuit theory diagrams of the intelligently connecting or disconnecting electric control circuit that preferred embodiment of the present utility model provides.
As shown in Figure 2, in the intelligently connecting or disconnecting electric control circuit 100 that preferred embodiment of the present utility model provides, step-down rectifier module 10 comprises loop resistance R1, decompression capacitor C1, commutation diode D1, stabilivolt D2 and filter capacitor C2, wherein, one end of decompression capacitor C1 is the first input end of step-down rectifier module 10, the positive pole of the other end and commutation diode D1 and the negative pole of stabilivolt D2 connect altogether, the negative pole of commutation diode D1 and the positive pole of filter capacitor C2 connect the DC output end forming step-down rectifier module 10 altogether, the positive pole of stabilivolt D2 and the negative pole of filter capacitor C2 connect the second input end forming step-down rectifier module 10 altogether, loop resistance R1 is connected in parallel on the two ends of decompression capacitor C1.
In the preferred embodiment, what the DC output end of step-down rectifier module 10 exported is voltage is the direct current of 6V, and the parameter of loop resistance R1 is 1206 encapsulation, nominal resistance 470k Ω, rated voltage 1kV; The parameter of decompression capacitor C1 is rated capacitance 0.47uF, rated voltage 400V; The parameter of filter capacitor C2 is rated capacitance 200uF, rated voltage 16V.
Ultrasound examination module 20 is ultrasound chip U1, comprises power pins VDD, output pin OUT and grounding pin GND, distinguishes the power end of corresponding ultrasound examination module 20, level output end and earth terminal.
As shown in Figure 2, in the preferred embodiment, level switch module 30 comprises NPN type triode Q1, PNP type triode Q2, biasing resistor R2 and biasing resistor R3, wherein, the base stage of triode Q1 connects one end of biasing resistor R2, the power end of current collection very level switch module 30, collector also connects the base stage of triode Q2 through biasing resistor R3, the other end of biasing resistor R2 is the input end of level switch module 30, the control end of the transmitting of triode Q2 very level switch module 30, the emitter of triode Q1 and the collector of triode Q2 connect the output terminal forming level switch module 30 altogether.
In the preferred embodiment, triode Q1 and triode Q2 is STO23 type encapsulation triode, and biasing resistor R2 and biasing resistor R3 is 0603 type packaged resistance.
As shown in Figure 2, in the preferred embodiment, level switch module 30 also comprises clamp capacitor C3 and pull-up resistor R4, wherein, the power end of one end of clamp capacitor C3 and the DC output end of step-down rectifier module 10 and ultrasound examination module 20 connects altogether, the collector of another termination triode Q1, and the DC output end of pull-up resistor R4 mono-termination step-down rectifier module 10, the other end and the emitter of triode Q2 and the control end of electronic AC switch 40 connect altogether.
In the preferred embodiment, the parameter of clamp capacitor C3 is rated capacitance 47uF, rated voltage 16V, and the parameter of pull-up resistor R4 is 0603 encapsulation, nominal resistance 3k Ω.
As shown in Figure 2, in the preferred embodiment, intelligently connecting or disconnecting electric control circuit 100 also comprises the filtration module 50 between control end, the control end of electronic AC switch 40 and zero line N being connected to level switch module 30.
Filtration module 50 comprises resistance R5 and electric capacity C4, wherein, and the control end of resistance R5 one end and the level switch module 30 and control end of electronic AC switch 40 connects altogether, another terminal connecting zero line N, electric capacity C4 are connected in parallel on resistance R5 two ends.
In the preferred embodiment, the rated capacitance of electric capacity C4 is 0.01uF, and the parameter of divider resistance R5 is 0603 encapsulation, nominal resistance 1k Ω.
As shown in Figure 2, in the preferred embodiment, electronic AC switch 40 is bidirectional triode thyristor D3, and its first anode, second anode and control pole be the input end of corresponding electronic AC switch 40, output terminal and control end respectively.
Intelligently connecting or disconnecting electric control circuit 100 also comprises the fuse F1 be connected on live wire L.In the preferred embodiment, the parameter of fuse F1 is rated voltage 250V, rated current 5A.
Based on above-mentioned intelligently connecting or disconnecting electric control circuit 100, principle of work of the present utility model is:
Alternating current inputs from live wire L and zero line N, and the current trend in circuit is:
(1) live wire L input current flows to decompression capacitor C1, commutation diode D1 through fuse F1, filter capacitor C2 gets back to zero line N;
(2) loop current of zero line N gets back to live wire L through voltage stabilizing diode D2, decompression capacitor C1 or loop resistance R1, fuse F1;
(3) when electronic AC switch D3 conducting, live wire L input current through the live wire of fuse F1, electronic AC switch D3 flow direction electric loading, then through getting back to zero line N with the zero line of electric loading; The dead end when bidirectional triode thyristor D3 ends, no current passes through.
The galvanic current trend that voltage reduction module exports is:
(1) DC output end output current, flow into the VDD pin of ultrasound examination chip U1, export through OUT pin, zero line N (being equivalent to ground connection) is got back to through GND pin, when detecting that the distance of human body distance intelligently connecting or disconnecting electric control circuit 100 is greater than response lag, OUT pin sends high level signal, the base stage of NPN type triode Q1 is flowed to through biasing resistor R2, the electric current that DC output end exports also flows into the collector of triode Q1 through clamp capacitor C3, triode Q1 conducting, electric current gets back to zero line through the emitter of triode Q1, now the collector current of triode Q1 is very large, the base stage of PNP type triode Q2 is flowed to through biasing resistor R3, corresponding makes the base voltage of triode Q2 very large (equaling the voltage of biasing resistor R3), meanwhile, DC output end output current, the emitter of triode Q2 is flowed to through pull-up resistor R4, now the base voltage of triode Q2 is greater than its emitter voltage, triode Q2 ends, make the control pole of the current direction bidirectional triode thyristor D3 flowing to the emitter of triode Q2 through pull-up resistor R4, make its two-way admittance, thus make the alternating current on live wire L can flow to by electric loading,
(2) DC output end output current, flow into the VDD pin of ultrasound examination chip U1, export through OUT pin, get back to zero line N (being equivalent to ground connection) through GND pin, when detecting that the distance of human body distance intelligently connecting or disconnecting electric control circuit 100 is less than or equal to response lag, OUT pin sends low level (0 level) signal, triode Q1 is ended, and the corresponding base voltage of triode Q2 that makes is low level (being 0 level); Meanwhile, DC output end output current, the emitter of triode Q2 is flowed to through pull-up resistor R4, now the base voltage of triode Q2 is less than its emitter voltage, triode Q2 conducting, makes the electric current flowing to the emitter of triode Q2 through pull-up resistor R4 get back to zero line N through its collector, makes control very 0 level of bidirectional triode thyristor D3, two-way stop, thus the alternating current on live wire L can not be flowed to use electric loading.
The utility model embodiment also provides a kind of safety socket, as with the web member between electric loading and AC power, comprises described intelligently connecting or disconnecting electric control circuit 100.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. an intelligently connecting or disconnecting electric control circuit, with the live wire of AC power and zero line is connected, be electricity consumption load supplying, it is characterized in that, described intelligently connecting or disconnecting electric control circuit comprises:
First input end connects zero line described in described live wire, the second input termination, and the alternating current of input is carried out to step-down rectifier and exports galvanic step-down rectifier module by its DC output end;
Whether zero line described in DC output end, ground connection termination described in power supply termination, be greater than response lag according to the detecting distance that its ultrasonic testing signals of launching is fed back, control the ultrasound examination module that its level output end exports high/low level signal;
Zero line described in DC output end, output termination described in level output end, power supply termination described in input termination, to convert described high/low level signal to on/off electric control signal and the level switch module exported by its control end;
Described in input termination, the control end of level switch module described in live wire, output termination electricity consumption load, control termination, with according to described on/off electric control signal, realizes the electronic AC switch of conduction and cut-off.
2. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described step-down rectifier module comprises loop resistance R1, decompression capacitor C1, commutation diode D1, stabilivolt D2 and filter capacitor C2, wherein, one end of decompression capacitor C1 is the first input end of described step-down rectifier module, the positive pole of the other end and commutation diode D1 and the negative pole of stabilivolt D2 connect altogether, the negative pole of commutation diode D1 and the positive pole of filter capacitor C2 connect the DC output end forming described step-down rectifier module altogether, the positive pole of stabilivolt D2 and the negative pole of filter capacitor C2 connect the second input end forming described step-down rectifier module altogether, loop resistance R1 is connected in parallel on the two ends of decompression capacitor C1.
3. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described ultrasound examination module is ultrasound chip, and the frequency range of its ultrasonic testing signals of launching is 13MHz ~ 40MHz, and response lag is 25mm ~ 75mm.
4. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described level switch module comprises NPN type triode Q1, PNP type triode Q2, biasing resistor R2 and biasing resistor R3, wherein, the base stage of triode Q1 connects one end of biasing resistor R2, the power end of the very described level switch module of current collection, collector also connects the base stage of triode Q2 through biasing resistor R3, the other end of biasing resistor R2 is the input end of described level switch module, the control end of the very described level switch module of transmitting of triode Q2, the emitter of triode Q1 and the collector of triode Q2 connect the output terminal forming described level switch module altogether.
5. intelligently connecting or disconnecting electric control circuit as claimed in claim 4, it is characterized in that, described level switch module also comprises clamp capacitor C3 and pull-up resistor R4, wherein, the power end of one end of clamp capacitor C3 and described DC output end and described ultrasound examination module connects altogether, the collector of another termination triode Q1, and the emitter of DC output end, the other end and triode Q2 described in pull-up resistor R4 mono-termination and the control end of described electronic AC switch connect altogether.
6. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described intelligently connecting or disconnecting electric control circuit also comprises the filtration module between the control end being connected to described level switch module, the control end of described electronic AC switch and described zero line.
7. intelligently connecting or disconnecting electric control circuit as claimed in claim 6, it is characterized in that, described filtration module comprises resistance R5 and electric capacity C4, wherein, the control end of resistance R5 one end and described level switch module and the control end of described electronic AC switch connects altogether, zero line described in another termination, electric capacity C4 is connected in parallel on resistance R5 two ends.
8. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described electronic AC switch is bidirectional triode thyristor D3, and its first anode, second anode and control pole is the input end of corresponding described electronic AC switch, output terminal and control end respectively.
9. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterized in that, described intelligently connecting or disconnecting electric control circuit also comprises the fuse be connected on described live wire.
10. a safety socket, as with the web member between electric loading and AC power, is characterized in that, described safety socket comprises the intelligently connecting or disconnecting electric control circuit as described in any one of claim 1 ~ 9.
CN201520885707.5U 2015-11-09 2015-11-09 Electrical shutoff control circuit and safe socket are led to to intelligence Expired - Fee Related CN205193482U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520885707.5U CN205193482U (en) 2015-11-09 2015-11-09 Electrical shutoff control circuit and safe socket are led to to intelligence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520885707.5U CN205193482U (en) 2015-11-09 2015-11-09 Electrical shutoff control circuit and safe socket are led to to intelligence

Publications (1)

Publication Number Publication Date
CN205193482U true CN205193482U (en) 2016-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520885707.5U Expired - Fee Related CN205193482U (en) 2015-11-09 2015-11-09 Electrical shutoff control circuit and safe socket are led to to intelligence

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Country Link
CN (1) CN205193482U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106681178A (en) * 2015-11-09 2017-05-17 许荣林 Intelligent power on/off control circuit and safe socket
CN110600947A (en) * 2019-10-12 2019-12-20 广西电网有限责任公司贵港供电局 Control method and system of intelligent socket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106681178A (en) * 2015-11-09 2017-05-17 许荣林 Intelligent power on/off control circuit and safe socket
CN110600947A (en) * 2019-10-12 2019-12-20 广西电网有限责任公司贵港供电局 Control method and system of intelligent socket

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20160427

Termination date: 20201109