CN107706902A - Safe power connection equipment and system and its mistake proofing circuitry phase detection method - Google Patents

Safe power connection equipment and system and its mistake proofing circuitry phase detection method Download PDF

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Publication number
CN107706902A
CN107706902A CN201710741540.9A CN201710741540A CN107706902A CN 107706902 A CN107706902 A CN 107706902A CN 201710741540 A CN201710741540 A CN 201710741540A CN 107706902 A CN107706902 A CN 107706902A
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CN
China
Prior art keywords
incoming end
ground wire
safety
live wire
zero line
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Granted
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CN201710741540.9A
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Chinese (zh)
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CN107706902B (en
Inventor
林世峰
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Guangdong Zhongke Electric Technology Co.,Ltd.
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SHENZHEN ZHONGKE ELECTRIC TECHNOLOGY Co Ltd
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Priority to CN201710741540.9A priority Critical patent/CN107706902B/en
Publication of CN107706902A publication Critical patent/CN107706902A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection

Abstract

One safety, which connects electric system, includes a live wire incoming end, and a zero line incoming end, a ground wire incoming end, a distribution controller, a detection circuit, one drive circuit, one performs electronic switch, and an output end.In normal wiring, without potential difference between the zero line incoming end and the ground wire incoming end, so as to the output end normal output voltage, in false wiring, there is potential difference between the zero line incoming end and the ground wire incoming end, the detection circuit will produce a trigger signal, the execution electronic switch is disconnected inside live wire or internal ground wire that the safety connects electric system so as to touch, so that the output end can not power.

Description

Safe power connection equipment and system and its mistake proofing circuitry phase detection method
Technical field
The present invention relates to a safety circuit device, more particularly to a safe power connection equipment and system and its inspection of mistake proofing circuitry phase Survey method.
Background technology
The discovery and application of electricity are greatly saved the manual labor and mental labour of the mankind, the strength of the mankind is grown above Wing, the information feeler of the mankind is set constantly to extend, it may be said that to be the revolution of human history, kinetic energy is daily all in source caused by it Source constantly discharges, and people says that its effect is no less than oxygen to what the demand of electricity was exaggerated, if without electricity, the civilized of the mankind can also be Explored in dark.But anything all has dual character, during the utilization of electric energy, electricity equally causes the mankind to us It is difficult to the loss estimated, for the safer electric energy that utilizes, the mankind have formulated a series of in continuous exploration and summary of experience Professional standard electric energy is safely used with more specification.
The main port that socket exports as electric energy, it is related to the first line of defence of Electrical Safety, so the electricity consumption of socket Protection Design has direct and great meaning for safety utilization of electric power, the design and installation of socket similarly formulate have it is a series of Professional standard, in such as left zero right fire, i.e. socket installation, the jack on the socket left side correspond to connecting to neutral line, the jack correspondence on the right of socket Start to exchange fire line.The original intention of left zero right fiery standard is, in left zero right fiery wiring process, the probability of the right hand electric shock of people is than left hand Greatly, electric current forms path through the remarkable right hand and body by left foot, and people gets an electric shock with regard to whole body, even if getting an electric shock, electric current also will not Heart is directly over, and comparatively the right hand reacts more quick than left hand, meeting instinct is thrown away；Conversely, the cloth of left fiery right zero In line process, the likelihood ratio right hand that the left hand of people gets an electric shock is big, and left hand gets an electric shock, and electric current passes through right crus of diaphragm through remarkable left hand and body Path is formed, the same whole body of people gets an electric shock, but electric current can pass through heart, may directly result in shock or dead.The system of standard Set pattern model the design of product, and electrical appliance and socket are deferred to left zero right fiery standard and be designed in itself.Therefore, socket is worked as Wiring when not deferring to left zero right fiery wiring rules but using the opposite mode of connection, first, socket is in itself originally It is arranged to control the actual break-make for simply controlling zero line of switch of live wire break-make, although the electrical appliance being connected to thereon can not be formed The loop of work, but still suffer from electric shock hidden danger because live wire does not have disconnection；Secondly, electrical appliance thereon is connected to because deferring to a left side Zero right fiery standard, it is actually also that can only control zero line break-make that it, which is designed as controlling the switch of live wire break-make, although can also control The working condition of electrical appliance processed still equally exists very big potential safety hazard due to not disconnecting live wire；Again, part electricity consumption Device such as electricity-saving lamp, when only disconnection zero line does not disconnect live wire, it may show as still having faint glow or even can constantly glisten； Further, when being connected to mobile socket on socket, because left zero right fiery standard is deferred in socket design, it is originally intended to control in socket The switch of live wire break-make actually also simply controls the break-make of zero line, socket and connects still band inside the electrical appliance of socket Electricity, therefore larger potential safety hazard be present.
In addition to the right fire in a left side zero, it is grounded as one of major criterion and measure formulated for Electrical Safety, equally turns into One of standard of jack design, the shell of electrical appliance is connected, on the one hand can prevent from accumulating on electrical appliance shell by it with the earth Electric charge, produce static discharge and jeopardize equipment and personal safety；On the other hand when the insulation damages of equipment make casing powered, Promote the protection act of power supply and cut off the electricity supply, to protect the safety of staff.
In summary, the right fire in a left side zero and major criterion of the ground wire as jack design, it is for specification electricity consumption and safety Electricity consumption has a great meaning, but the real execution of this two kinds of standards depends entirely on circuit installation personnel, and socket is in itself Design is general to be only capable of discharging prompting obligation, and whether this two kinds of standards perform and maintain effective general feelings for domestic consumer Have no effect on normal electricity consumption under condition, therefore the execution of this two kinds of standards in practice is not strict, especially left zero right fiery standard. Additionally due to the presence of earth leakage circuit-breaker, the standard of ground wire also tend to it is easily ignored, and if be not grounded, even if Leakage switch is quick on the draw, and powered electrical appliance shell can only also be touched by human body and cause the leakage switch after human electric shock It can just power off；It is described to connect wires not only although not having strict implement with greatly fully contacting if having ground wire but being grounded There is no protective effect, or even be also possible to cause to cause all electrical appliance outer casing electrifications because leaking electricity at one and electric shock thing easily occurs Therefore while it is also possible to therefore occur short circuit between powered ground wire and zero line and fire occurs.
Therefore, the present invention be directed to left zero right fiery standard in socket execution is not strict and circuit in ground connection line standard hold Capable not strict present situation, there is provided a kind of safe power connection equipment and system and its mistake proofing circuitry phase detection method.
The content of the invention
It is an object of the present invention to provide a safe power connection equipment and system and its mistake proofing circuitry phase detection method, with The right fiery wiring rules in a left side zero are made to force to be performed.
Another object of the present invention is to provide a safe power connection equipment and system and its mistake proofing circuitry phase detection method, with When preventing from producing potential difference when connecing electric wrong, disconnecting immediately makes electric energy not export.
Another object of the present invention is to provide a safe power connection equipment and system and its mistake proofing circuitry phase detection method, Left zero right fiery wiring rules not strict implement when, the safe power connection equipment and system will be unable to provide the output of electric energy, from And can lock-on circuit installation personnel when install the safe power connection equipment, the left zero right fiery standard of strict implement.
Another object of the present invention is to provide a safe power connection equipment and system and its mistake proofing circuitry phase detection method, its In in the case where left zero right fiery wiring rules cannot get strict implement, it is defeated that the safe power connection equipment can't provide electric energy Go out, and in the non-ground potential of the ground wire current potential that detects the safe power connection equipment, even if the ground wire is same when powered Sample will not provide electric energy output.Therefore, it is possible to lock-on circuit installation personnel when installing the safe power connection equipment strict implement Left zero right fiery standard, and live wire and the ground wire are disconnected when the ground wire is powered, while can effectively remind use The presence of family electric leakage is simultaneously avoided because the ground wire caused by the earth loose contact with using electrification.
In order to reach an at least purpose for the above, the present invention provides a safety and connects electric system, including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
At least one detection circuit, it is arranged between the zero line incoming end and the ground wire incoming end；
At least one performs electronic switch, and it is arranged at the inside live wire or internal ground wire that the safety connects electric system；And
An at least output end, it is the power supply output end that the safety connects electric system, wherein in normal wiring, described zero Without potential difference between line incoming end and the ground wire incoming end, so as to the output end normal output voltage, in false wiring, There is potential difference between the zero line incoming end and the ground wire incoming end, the detection circuit will produce a trigger signal, so as to Touching makes the execution electronic switch disconnect inside live wire or internal ground wire that the safety connects electric system so that the output end without Method is powered.
Some embodiments of the present invention, wherein the detection circuit includes a rectification circuit, a reduction voltage circuit, and at least one Electronic switch is detected, wherein being connected with each other in regular turn each other, so as general between the zero line incoming end and the ground wire incoming end When producing potential difference, will produce electric current makes after being depressured respectively by the rectifier circuit rectifies and the reduction voltage circuit, makes described Detect electronic switch and provide the trigger signal so that the execution electronic switch disconnects.
Some embodiments of the present invention, including an at least distribution controller, it includes an at least voltage acquisition mould Block, an at least voltage transformation module and at least an IC Voltage stabilizing modules, become wherein the voltage acquisition module electrically connects the voltage Change the mold block, the voltage transformation module electrically connects the IC Voltage stabilizing modules, and external electric energy will be by the live wire incoming end and described After zero line incoming end enters the distribution controller, it is acquired by the voltage acquisition module after voltage and is sent to the voltage Conversion module and by the voltage transformation module change voltage after, by the IC Voltage stabilizing modules provide burning voltage regulation.
Some embodiments of the present invention, wherein the safety, which connects electric system, also includes an at least fault display unit, it connects The detection circuit is connected to, when having potential difference between the zero line incoming end and the ground wire incoming end, so that the event Hinder display unit running, to reach alarming effect.
Some embodiments of the present invention, wherein the safety, which connects electric system, also includes at least one normal display unit and extremely Few normal circuit resistance, the normal display unit are connected to the normal circuit resistance and connect the execution electronic cutting, When the execution electronic switch, which connects the safety, connects the inside live wire or internal ground wire of electric system, wherein electric current will flow through institute Normal display unit and the normal circuit resistance are stated, to reach prompting effect.
Some embodiments of the present invention, held wherein the safety, which connects electric system, also includes an at least reset switch, described in it Between row electronic switch and the detection electronic switch.
Some embodiments of the present invention, wherein also including at least one driving electronic switch, wherein the execution electronic switch Quantity is two, two it is described perform electronic switches be connected to the driving electronic switch and be connected to the internal live wire and Internal ground wire.
Some embodiments of the present invention, wherein the reduction voltage circuit is embodied as an at least dropping resistor, the detection electronics Switch is embodied as an at least photoelectrical coupler, and the detection electronic switch is embodied as an at least controllable silicon, the two execution electronics Switch is embodied as two relays respectively, and the fault display unit is embodied as at least one first light-emittingdiode, described normal aobvious Show that unit is embodied as at least one second light-emittingdiode.
Some embodiments of the present invention, wherein the zero line incoming end and the live wire incoming end and outside line are reversed When, there is potential difference between the zero line incoming end and the ground wire incoming end, electric current enters described whole from the zero line incoming end After current circuit carries out rectification, then pass through the reduction voltage circuit and be depressured, then first light-emittingdiode lights, the light The two pins input of electric coupler, which is energized, causes the two pins output end of the photoelectrical coupler to be switched on, the controllable silicon G it is extremely powered cause A, K poles are connected, and the electric current for flowing through two relays is no longer flow towards second light-emittingdiode and described Normal circuit resistance, but the reset switch and the controllable silicon are flowed to, and the electric current for flowing through two relays is increased It is big that the inside live wire and internal ground wire that the safety connects electric system can be each turned off to two relays of satisfaction while described Second light-emittingdiode stops luminous, the output end not output voltage.
Some embodiments of the present invention, wherein in disconnecting circuit and correcting so that the zero line incoming end and the live wire connect Enter after holding correct wiring, without potential difference between the zero line incoming end and the ground wire incoming end, so as to described first luminous two Polar body stops luminous, and the two pins output end of the photoelectrical coupler disconnects, the A of the controllable silicon, K poles it is separated, it is described The electric current of relay is not enough to disconnect inside live wire and internal ground wire that the safety connects electric system, thus resets and connect the peace The full inside live wire and internal ground wire for connecing electric system, while second light-emittingdiode lights, and disconnect the reset switch Do not influence standing state, the output end normal output voltage.
Some embodiments of the present invention, wherein the safety connect electric system internal ground wire it is powered when, wherein the safety Connect electric system internal ground wire it is powered when, flow through two relays electric current be increased to meet two relays can divide Inside live wire and internal ground wire that the safety connects electric system are not disconnected, so as to the output end not output voltage.
Some embodiments of the present invention, wherein the internal ground wire that the safety connects electric system is powered when fixing a breakdown, need The reset switch is disconnected once to cut off the voltage output of the A poles of the controllable silicon so that the A of the controllable silicon, K are extremely disconnected Open, two relays, which are reset, connects inside live wire and internal ground wire that the safety connects electric system, and failure is excluded institute After stating reset switch reset connection, the G of the controllable silicon does not have trigger signal extremely, and the A of the controllable silicon, K poles still remain open.
In order to reach an at least purpose for the above, the present invention also provides a safe power connection equipment, including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
An at least distribution controller, it electrically connects the inside live wire and zero line that the safety connects electric system；
At least one detection circuit, it is arranged between the zero line incoming end and the ground wire incoming end；
At least one performs electronic switch, and it is arranged at the inside live wire or internal ground wire that the safety connects electric system；And
An at least output end, it is the power supply output end that the safety connects electric system, wherein in normal wiring, described zero Without potential difference between line incoming end and the ground wire incoming end, so as to the output end normal output voltage, in false wiring, There is potential difference between the zero line incoming end and the ground wire incoming end, the detection circuit will produce a trigger signal, so as to Touching makes the execution electronic switch disconnect inside live wire or internal ground wire that the safety connects electric system so that the output end without Method is powered.
Wherein described detection circuit includes a rectification circuit, a dropping resistor, and an at least photoelectrical coupler, wherein each other It is connected with each other in regular turn, so when between the zero line incoming end and the ground wire incoming end potential difference will be produced, electricity will be produced Stream makes after being depressured respectively by the rectifier circuit rectifies and the dropping resistor, the photoelectrical coupler is provided the triggering Signal is so that the execution electronic switch disconnects.
Wherein described safe power connection equipment also includes at least one first light-emittingdiode, its be arranged at the dropping resistor and Between the photoelectrical coupler, when having potential difference between the zero line incoming end and the ground wire incoming end, so that described First light-emittingdiode operates, to reach alarming effect.
Wherein described safety, which connects electricity system device, also includes at least one second light-emittingdiode, the second light-emittingdiode quilt The execution electronic switch is connected, when the inside live wire for performing the electronic switch connection safe power connection equipment or internally During line, wherein electric current flows through second light-emittingdiode, to reach prompting effect.
In order to reach an at least purpose for the above, the present invention also provides a safe power connection equipment, including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
An at least distribution controller, it electrically connects the inside live wire and zero line that the safety connects electric system；
An at least rectification circuit, it electrically connects the zero line incoming end and the ground wire incoming end；
An at least dropping resistor, it electrically connects the rectification circuit；
An at least photoelectrical coupler, it electrically connects the dropping resistor；
An at least controllable silicon, it electrically connects the photoelectrical coupler and the distribution controller；
An at least live wire relay, it electrically connects the controllable silicon and the internal live wire；
An at least ground line relay, it electrically connects the controllable silicon and the internal ground wire；And
An at least output end, it is the power supply output end of the safe power connection equipment, so in normal wiring, wherein institute State without potential difference between zero line incoming end and the ground wire incoming end, so that the output end normal output voltage, connects in mistake During line, wherein having potential difference between the zero line incoming end and the ground wire incoming end, rectification is carried out by the rectification circuit, The dropping resistor is depressured, and the photoelectrical coupler and the controllable silicon are switched on, flow through the live wire relay and The electric current of described ground line relay, which is increased to, meets that the live wire relay and described ground line relay disconnect the safety and connect The live wire and ground wire of electric installation, so that the output end can not power.
Some embodiments of the present invention, wherein the distribution controller includes a voltage acquisition module, a voltage transformation Module and an IC Voltage stabilizing modules, wherein the voltage acquisition module electrically connects the voltage transformation module, the voltage transformation mould Block electrically connects the IC Voltage stabilizing modules, and external electric energy is entered described with automatically controlled by the live wire incoming end and the zero line incoming end After device processed, it is acquired by the voltage acquisition module after voltage and is sent to the voltage transformation module, and become by the voltage After changing the mold block conversion voltage, the regulation of burning voltage is provided by the IC Voltage stabilizing modules.
Some embodiments of the present invention, wherein the safe power connection equipment also includes an at least fault display unit, it sets It is placed between the dropping resistor and the photoelectrical coupler, has electricity between the zero line incoming end and the ground wire incoming end During potential difference, so that the fault display unit operates, to reach alarming effect.
Some embodiments of the present invention, wherein the safety connect electricity system device also include at least one normal display unit and An at least normal circuit resistance, the normal display unit are simultaneously attached the live wire relay and described ground line relay, When the live wire relay and described ground line relay are respectively communicated with the inside live wire and internal ground wire of the safe power connection equipment When, wherein electric current flows through the normal display unit and the normal circuit resistance, to reach prompting effect.
Some embodiments of the present invention, wherein the safe power connection equipment also includes an at least reset switch, it is arranged at Between the live wire relay and described ground line relay and the controllable silicon.
Some embodiments of the present invention, wherein the fault display unit is embodied as at least one first light-emittingdiode, institute State normal display unit and be embodied as at least one second light-emittingdiode.
In order to reach an at least purpose for the above, a safety connects electric mistake proofing circuitry phase detection method, comprised the following steps：
(A) live wire incoming end, zero line incoming end and ground wire incoming end are respectively connected to outside line；
(B) normal wiring is judged whether；
(C) when being judged as normal wiring in the step (B), output end normally exports power supply；
(D) when being judged as false wiring in the step (B), output end can not export power supply；And
(E) wiring is corrected according to the step (D), output end normally exports power supply.
Some embodiments of the present invention, wherein according to the step (B), connect via the zero line incoming end and the ground wire Enter and judge whether normal wiring with the presence or absence of potential difference between end, no potential difference is normal wiring, on the contrary then false wiring.
Some embodiments of the present invention, wherein according to the step (B), via fault display unit and normal display unit To judge whether normal wiring, wherein the fault display unit is arranged between dropping resistor and photoelectrical coupler, so as to Internally zero live wire by it is reversed when or internal ground wire it is powered when, operate the fault display unit, to reach alarming effect, its In normal display unit be connected to normal circuit resistance and while be connected live wire relay and line relay, when the fire When line relay and described ground line relay are respectively communicated with the internal live wire and the internal ground wire, wherein electric current flows through described Normal display unit and the normal circuit resistance, to reach prompting effect.
Some embodiments of the present invention, wherein the fault display unit is embodied as at least one first light-emittingdiode, institute State normal display unit and be embodied as at least one second light-emittingdiode.
Some embodiments of the present invention, according to the step (C), wherein during normal wiring, two perform electronic switch difference Connect the internal live wire and the internal ground wire.
Some embodiments of the present invention, according to the step (C), wherein during normal wiring, live wire relay and ground wire after Electrical equipment is respectively communicated with the internal live wire and the internal ground wire.
Some embodiments of the present invention, according to the step (D), wherein the zero line incoming end and the ground wire incoming end Between have potential difference, so as to which rectification circuit carries out rectification, reduction voltage circuit is depressured, and detects circuit and driving electronic switch quilt Connect, two electronic switches that perform are each turned off the live wire and ground wire of inside, and then the output end can not be exported power supply.
Some embodiments of the present invention, according to the step (D), wherein the zero line incoming end and the ground wire incoming end Between have a potential difference, the rectification circuit carries out rectification, and the dropping resistor is depressured, then by the photoelectrical coupler Two pins input, which is energized, causes the two pins output end of the photoelectrical coupler to be switched on, and makes the G of controllable silicon extremely powered Causing A, K poles are connected, and the live wire relay and described ground line relay is each turned off internal live wire and ground wire, and then The output end can not be exported power supply.
Some embodiments of the present invention, wherein correction wiring is the outside live wire of live wire access termination, the zero line connects Enter the outside zero line of termination, the ground wire access termination external thread, and make the zero line incoming end and the ground wire incoming end it Between without potential difference.
Some embodiments of the present invention, wherein correction wiring is the outside live wire of live wire access termination, the zero line connects Enter the outside zero line of termination, the ground wire access termination external thread, and make the zero line incoming end and the ground wire incoming end it Between without potential difference, wherein, when, without potential difference, flowing through the live wire relay between the zero line incoming end and the ground wire incoming end The electric current of device and described ground line relay is not enough to the live wire and ground wire of breaking inner, so as to which the output end can normally export electricity Pressure.
Brief description of the drawings
Fig. 1 is to connect electric system and safety according to the safe power connection equipment and safety of first preferred embodiment of the present invention Connect the logical schematic of electric mistake proofing circuitry phase detection method.
Fig. 2 is to connect electric system and safety according to the safe power connection equipment and safety of second preferred embodiment of the present invention Connect the circuit displaying figure of electric mistake proofing circuitry phase detection method.
Fig. 3 is to connect electric system and safety according to the safe power connection equipment and safety of second preferred embodiment of the present invention Connect the logical schematic of electric mistake proofing circuitry phase detection method.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.Define in the following description General principle of the invention can apply to other embodiments, deformation program, improvement project, equivalent and do not carry on the back From the other technologies scheme of the spirit and scope of the present invention.
It will be understood by those skilled in the art that the present invention exposure in, term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", the orientation of the instruction such as " outer " or position close System is to be based on orientation shown in the drawings or position relationship, and it is for only for ease of the description present invention and simplifies description, without referring to Show or imply that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, therefore above-mentioned art Language is not considered as limiting the invention.
It is understood that term " one " be interpreted as " at least one " or " one or more ", i.e., in one embodiment, The quantity of one element can be one, and in a further embodiment, the quantity of the element can be multiple, and term " one " is no It is understood that as the limitation to quantity.
As shown in figure 1, it is that electric system is connect according to the safe power connection equipment and safety of the first preferred embodiment of the present invention System and safety connect electric mistake proofing circuitry phase detection method.
In a preferred embodiment of the invention, the safety, which connects electric system, includes a live wire incoming end 10, zero line access End 20, a ground wire incoming end 30, a detection circuit 50, at least one performs electronic switch 70, and an output end 80.
The detection circuit 50 is arranged between the zero line incoming end 20 and the ground wire incoming end 30, described to perform electricity Sub switch 70 may be disposed at the live wire or ground wire that the safety connects electric system.Especially, if the execution quantity of electronic switch 70 For one when, may be disposed at live wire or ground wire that the safety connects electric system, if it is described execution the quantity of electronic switch 70 if two When individual, live wire and ground wire that the safety connects electric system can be respectively arranged at.The output end 80 is arranged at the safety and connects electricity The live wire of system and the end of ground wire.
In normal wiring, the live wire incoming end 10 connects outside live wire, and the zero line incoming end 20 meets outside zero line, institute State ground wire incoming end 30 and connect external thread, at this moment between the zero line incoming end 20 and the ground wire incoming end 30 without potential difference, The live wire incoming end 10 and the zero line incoming end 20 have certain potential difference, therefore the output end 80 can normally export electricity Pressure.Further say, because without potential difference, the detection between the zero line incoming end 20 and the ground wire incoming end 30 Circuit 50 will not be run, and it is described perform electronic switch 70 can be arranged at connect the safety connect electric system live wire or/and Ground wire, so external electric energy, through the live wire incoming end 10 and during the zero line incoming end 20, the output end 80 can be normal Output voltage.
When false wiring, potential difference will be produced between the zero line incoming end 20 and the ground wire incoming end 30, makes institute A trigger signal will be produced by stating detection circuit 50, disconnect the execution electronic switch 70 so as to touch, therefore the output end 80 It will be unable to export electric energy, so as to avoid wiring error.Further to say, the detection circuit 50 includes a rectification circuit 51, and one Reduction voltage circuit 52, and at least one detection electronic switch 53, it is connected with each other in regular turn each other, so when the He of zero line incoming end 20 When potential difference will be produced between the ground wire incoming end 30, will produce electric current makes respectively by the rectification of rectification circuit 51 and decompression electricity After road 52 is depressured, the detection electronic switch 53 is set to provide the trigger signal so that the execution electronic switch 70 disconnects.
In other words, when zero live wire is reversed, the live wire incoming end 10 connects outside zero line, and the zero line incoming end 20 connects outer Portion's live wire, the ground wire incoming end 30 connect external thread, at this moment between the zero line incoming end 20 and the ground wire incoming end 30 There is potential difference.Therefore electric current is produced, the rectification circuit 51 carries out rectification, and the reduction voltage circuit 52 is depressured, and electric current flows through The rectification circuit 51 and the reduction voltage circuit 52, and make the execution electronic switch 70 and disconnect the safety and connect electric system Live wire or ground wire, hence in so that the safety, which connects electric system, can not provide the output of electric energy.At this moment if correction is causing zero live wire just True wiring, i.e., described live wire incoming end 10 connect outside live wire, and the zero line incoming end 20 connects outside zero line, the ground wire incoming end After 30 connect external thread, without potential difference between the zero line incoming end 20 and the ground wire incoming end 30, therefore disconnect, and it is described Live wire and ground wire that electronic switch 70 connects electric system for the normally closed connection safety are performed, therefore the output end 80 can be normally defeated Go out voltage.
In addition, when the safety connects the ground wire electrification of electric system, i.e., described live wire incoming end 10 connects external thread, described Zero line incoming end 20 connects outside zero line, and the ground wire incoming end 30 connects outside live wire, at this moment the zero line incoming end 20 and described There is potential difference between ground wire incoming end 30.Therefore, the rectification circuit 51 carries out rectification, then is carried out by the reduction voltage circuit 52 Decompression, electric current flow through the detection electronic switch 53, and the execution electronic switch 70 is disconnected the safety and connect electricity The live wire and/or ground wire of system, hence in so that the safety, which connects electric system, can not provide the output of electric energy.
The safety, which connects electric system, includes a distribution controller 40, and it is arranged at the live wire incoming end 10, the zero line Between incoming end 20, therefore the potential difference between the live wire incoming end 10 and the zero line incoming end 20, via with electric control Device 40 provides stable voltage, such as 12V voltages.In other words, external electric energy connects via the live wire incoming end 10 and the zero line When entering end 20, the distribution controller 40 can carry out electric energy conversion.Further say, the distribution controller 40 includes One voltage acquisition module 41, a voltage transformation module 42 and an IC Voltage stabilizing modules 43, wherein the voltage acquisition module 41 is electrically connected Connect the voltage transformation module 42, the voltage transformation module 42 electrically connects the IC Voltage stabilizing modules 43, such external electric energy by After the live wire incoming end 10 and the zero line incoming end 20 enter the distribution controller 40, by the voltage acquisition module 41 The voltage transformation module 42 is sent to after being acquired voltage, and after changing voltage by the voltage transformation module 42, by institute State the regulation that IC Voltage stabilizing modules 43 provide burning voltage.
The safety, which connects electric system, also includes a fault display unit 1, a normal display unit 2, a normal circuit resistance 3, and a reset switch 4.The fault display unit 1 is connected to the detection circuit 50, when zero live wire is reversed or described When safety connects the ground wire electrification of electric system, wherein the electric current will flow through the detection circuit 50, so that the malfunction coefficient Unit 1 operates, to reach alarming effect.The normal display unit 2 is connected to described in the normal circuit resistance 3 and connection and held Row electronic switch 70, therefore, when the execution electronic switch 70 connects the inside live wire or internally that the safety connects electric system During line, wherein electric current will flow through the normal display unit 2 and the normal circuit resistance 3, to reach prompting effect.It is described multiple Bit switch 4 is arranged between the execution electronic switch 70 and the detection electronic switch 53, wherein the reset switch 4 is normal Make and break is closed, and so when zero live wire is reversed, the electric current for flowing through the execution electronic switch 70 is no longer flow towards the normal display list Member 2 and the normal circuit resistance 3, but the reset switch 4 is flowed through, therefore flow through the electric current of the execution electronic switch 70 It will be increased to and meet that the execution electronic switch 70 disconnects live wire or ground wire that the safety connects electric system, it is at this moment described normal aobvious Show that unit 2 will be inoperative, and the not output voltage of the output end 80.Especially, though disconnect the reset switch 4 make it is described Safety connects the live wire of electric system and ground wire is resetted after connecting, and treats that the reset switch 4 resets, the safety connects the live wire of electric system It can still be disconnected with ground wire, only after disconnecting circuit and correction cause zero live wire correct wiring, the zero line incoming end 20 and institute State between ground wire incoming end 30 without potential difference, and the fault display unit 1 is inoperative, and the detection circuit 50 disconnects, institute State execution electronic switch 70 to be not enough to disconnect live wire and ground wire that the safety connects electric system, therefore reset the connection safety and connect The live wire and ground wire of electric system, while the normal display unit 2 is run, and the disconnection reset switch 4 does not influence existing shape State, then the output end 80 normally export.
It is worth mentioning, the fault display unit 1 can be embodied as at least one first light-emittingdiode, the normal display Unit 2 can be embodied as at least one second light-emittingdiode.The detection electronic switch 53 can be embodied as photoelectrical coupler or controllable Silicon.The execution electronic switch 70 can be embodied as relay.
The safe power connection equipment includes a live wire incoming end 10, and a zero line incoming end 20, a ground wire incoming end 30, one matches somebody with somebody Electric controller 40, a detection circuit 50, at least one performs electronic switch 70, and an output end 80.The distribution controller 40 It is arranged between the live wire incoming end 10, the zero line incoming end 20, therefore the live wire incoming end 10 and the zero line connect Enter the potential difference between end 20, stable voltage is provided via distribution controller 40, such as 12V voltages.The detection circuit 50 is set It is placed between the zero line incoming end 20 and the ground wire incoming end 30, the execution electronic switch 70 may be disposed at the safety Connect the live wire or ground wire of electric system.Especially, when the execution quantity of electronic switch 70 is if one, it may be disposed at the safety The live wire or ground wire of electric system are connect, if the execution quantity of electronic switch 70 is if two, the safety can be respectively arranged at Connect the live wire and ground wire of electric system.The output end 80 is arranged at the safety and connects the live wire of electric system and the end of ground wire.Institute Stating detection circuit 50 includes a rectification circuit 51, a reduction voltage circuit 52, and at least one detects electronic switch 53, its phase in regular turn each other Connect, so when between the zero line incoming end 20 and the ground wire incoming end 30 potential difference will be produced, electric current will be produced Make after being depressured respectively by the rectification of rectification circuit 51 and reduction voltage circuit 52, the detection electronic switch 53 is provided the triggering letter Number so that it is described execution electronic switch 70 disconnect.
As shown in Figures 2 and 3, it is to be connect according to the safe power connection equipment and safety of one second preferred embodiment of the present invention Electric system and safety connect electric mistake proofing circuitry phase detection method, wherein with first embodiment be different from increase some electronic components and It is corresponding to produce relativeness.
In a preferred embodiment of the invention, the safety, which connects electric system, includes a live wire incoming end 10, zero line access End 20, a ground wire incoming end 30, a distribution controller 40, a detection circuit 50, a driving electronic switch 60, two perform electronic cutting Close 70, and an output end 80.The detection circuit 50 includes a rectification circuit 51, a reduction voltage circuit 52, a detection electronic cutting Close 53.
The distribution controller 40 is electrically connected the live wire incoming end 10 and the zero line incoming end 20.The rectification Circuit 51 electrically connects the zero line incoming end 20 and the ground wire incoming end 30.The reduction voltage circuit 52 electrically connects the rectified current Road 51.The detection electronic switch 53 electrically connects the rectification circuit 51 and the reduction voltage circuit 52.The driving electronics The electrical connection of the switch 60 detection circuit 50 and the execution electronic switch 70, the output end 80 electrically connect the execution electronics Switch 70.
In normal wiring, the live wire incoming end 10 connects outside live wire, and the zero line incoming end 20 meets outside zero line, institute State ground wire incoming end 30 and connect external thread, at this moment between the zero line incoming end 20 and the ground wire incoming end 30 without potential difference, Therefore the output end 80 can normal output voltage.Further say, because the zero line incoming end 20 and the ground wire incoming end Without potential difference between 30, so the rectification circuit 51, the reduction voltage circuit 52 is described to detect electronic switch 53 and described Electronic switch 60 is driven, will not be run, and two electronic switches 70 that perform are respectively communicated with the live wire that the safety connects electric system And ground wire, so external electric energy, through the live wire incoming end 10 and during the zero line incoming end 20, the output end 80 can be just Normal output voltage.
It is worth mentioning, when external electric energy is via the live wire incoming end 10 and the zero line incoming end 20, the distribution Controller 40 can carry out electric energy conversion.Further to say, the distribution controller 40 includes a voltage acquisition module 41, One voltage transformation module 42 and an IC Voltage stabilizing modules 43, wherein the voltage acquisition module 41 electrically connects the voltage transformation module 42, the voltage transformation module 42 electrically connects the IC Voltage stabilizing modules 43, and such external electric energy is by the He of live wire incoming end 10 After the zero line incoming end 20 enters the distribution controller 40, transmitted after being acquired voltage by the voltage acquisition module 41 To the voltage transformation module 42, and after changing voltage by the voltage transformation module 42, provided by the IC Voltage stabilizing modules 43 The regulation of burning voltage.
When zero live wire is reversed, the live wire incoming end 10 connects outside zero line, and the zero line incoming end 20 connects outside live wire, The ground wire incoming end 30 connects external thread, at this moment has current potential between the zero line incoming end 20 and the ground wire incoming end 30 Difference.Therefore there is electric current, the rectification circuit 51 carries out rectification, and the reduction voltage circuit 52 is depressured, and electric current flows through the rectification Circuit 51 and the reduction voltage circuit 52, then by the detection electronic switch 53 and the driving electronic switch 60, flow through institute The electric current for stating driving electronic switch 60 is increased to and the execution electronic switch 70 is each turned off the safety and is connect electric system Live wire and ground wire, hence in so that the safety, which connects electric system, can not provide the output of electric energy.At this moment if correction is causing zero live wire just True wiring, i.e., described live wire incoming end 10 connect outside live wire, and the zero line incoming end 20 connects outside zero line, the ground wire incoming end After 30 connect external thread, without potential difference between the zero line incoming end 20 and the ground wire incoming end 30, therefore the detection circuit 50 and the driving electronic switch 60 disconnect, and the execution electronic switch 70 is not enough to disconnect the safety and connects electric system Live wire and ground wire, therefore the output end 80 can normal output voltage.
When the safety connects the ground wire electrification of electric system, i.e., described live wire incoming end 10 connects outside live wire, the zero line Incoming end 20 connects outside zero line, and the ground wire incoming end 30 connects outside live wire, at this moment the zero line incoming end 20 and the ground wire There is potential difference between incoming end 30.Therefore, the rectification circuit 51 carries out rectification, then is dropped by the reduction voltage circuit 52 Pressure, electric current flow through the detection electronic switch 53 and the driving electronic switch 60, and flow through the driving electronic switch 60 Electric current be increased to being enough to make the execution electronic switch 70 to be each turned off live wire and ground wire that the safety connects electric system, because This causes the safety to connect electric system and can not provide the output of electric energy.
In a preferred embodiment of the invention, the safety, which connects electric system, also includes a fault display unit 1, and one is normal aobvious Show unit 2, a normal circuit resistance 3, and a reset switch 4.The fault display unit 1 is arranged at the reduction voltage circuit 52 Between the detection electronic switch 53, therefore, when zero live wire is reversed or when the safety connects the ground wire electrification of electric system, its Described in electric current will flow through the reduction voltage circuit 52 and it is described detection electronic switch 53 between so that the fault display unit 1 running, to reach alarming effect.The normal display unit 2 is connected to the normal circuit resistance 3 and while connected described in two Electronic switch 70 is performed, therefore, when the two inside live wires for performing electronic switch 70 and being respectively communicated with the safety and connecing electric system During with internal ground wire, wherein electric current will flow through the normal display unit 2 and the normal circuit resistance 3, and effect is reminded to reach Fruit.The reset switch 4 is arranged between the two execution electronic switches 70 and the driving electronic switch 60, wherein described multiple Bit switch 4 is normally closed switch, so when zero live wire is reversed, flows through two electric currents for performing electronic switch 70 and is no longer flow towards institute Normal display unit 2 and the normal circuit resistance 3 are stated, but flows to the reset switch 4 and the driving electronic switch 60, Therefore two electric currents for performing electronic switch 70 are flowed through and will be increased to and meet that two electronic switches 70 that perform disconnect the peace The full live wire and ground wire for connecing electric system, at this moment described normal display unit 2 will be inoperative, and the output end 80 does not export electricity Pressure.Especially, though disconnect the reset switch 4 make the safety connect electric system live wire and ground wire reset connect after, treat institute State reset switch 4 to reset, the safety, which connects the live wire of electric system and ground wire, can still disconnect, and only in disconnecting circuit and correction cause After zero live wire correct wiring, without potential difference between the zero line incoming end 20 and the ground wire incoming end 30, and the failure Display unit 1 is inoperative, and the detection electronic switch 53 disconnects, separated, two execution of the driving electronic switch 60 Electronic switch 70 is not enough to disconnect live wire and ground wire that the safety connects electric system, therefore resets the connection safety and connect electric system Live wire and ground wire, while the normal display unit 2 is run, and is disconnected the reset switch 4 and do not influenceed standing state, then institute Output end 80 is stated normally to export.
It is worth mentioning, the reduction voltage circuit 52 can be embodied as an at least dropping resistor 521, the detection electronic switch 53 An at least photoelectrical coupler 531 can be embodied as, the driving electronic switch 60 can be embodied as an at least controllable silicon 61, be held described in two Row electronic switch 70 can be embodied as two relays 71,72 respectively, and it is luminous that the fault display unit 1 can be embodied as at least one first Diode, the normal display unit 2 can be embodied as at least one second light-emittingdiode.
So when zero live wire is reversed, the live wire incoming end 10 connects outside zero line, and the zero line incoming end 20 connects outside Live wire, the ground wire incoming end 30 connect external thread, at this moment have between the zero line incoming end 20 and the ground wire incoming end 30 Potential difference.Therefore, after the electric current will carry out rectification from the zero line incoming end 20 entrance rectification circuit 51, then by institute State dropping resistor 521 to be depressured, then first light-emittingdiode lights, the light emitting source of the photoelectrical coupler 531 Two pin input ends are that two pin output ends i.e. 3,4 of the electroluminescent light-receiving device for making the photoelectrical coupler 531 in 1,2 ends terminate Logical, the control pole G of the controllable silicon 61 is extremely powered to cause A, and K poles are that positive and negative electrode is connected, and at this moment flow through two relays 71, 72 electric current is no longer flow towards second light-emittingdiode and the normal circuit resistance 3, but flows to the He of reset switch 4 The controllable silicon 61, therefore, meet two energy of relay 71,72 when the electric current for flowing through two relays 71,72 increases to Inside live wire and internal ground wire that the safety connects electric system are enough each turned off, while second light-emittingdiode extinguishes, institute State the not output voltage of output end 80.It is worth mentioning, the controllable silicon 61 and second light-emittingdiode and the normal electricity Road resistance 3 is in parallel, the A of the controllable silicon 61, and K poles are connected, equivalent to second light-emittingdiode and normal circuit electricity The short circuit of resistance 3, therefore electric current will not flow to second light-emittingdiode and the normal circuit resistance 3.In addition, even if disconnect institute State reset switch 4 make the safety connect electric system live wire and ground wire reset connect after, treat that the reset switch 4 resets, it is described Safety, which connects the live wire of electric system and ground wire, can still disconnect, only after disconnecting circuit and correction cause zero live wire correct wiring, institute State and extinguish between zero line incoming end 20 and the ground wire incoming end 30 without potential difference, first light-emittingdiode, the photoelectricity 3,4 ends of coupler 531 disconnect, the A of the controllable silicon, and (A poles are without output voltage, AK poles during correction for K poles separated Disconnect), the electric current of the relay 71,72 is not enough to disconnect inside live wire and internal ground wire that the safety connects electric system, because And reset and connect inside live wire and internal ground wire that the safety connects electric system, while second light-emittingdiode is lighted, and Disconnecting the reset switch 4 does not influence standing state, and the output end 80 can normal output voltage.
In addition, when the internal ground wire that the safety connects electric system is powered, i.e., described live wire incoming end 10 connects outside live wire, The zero line incoming end 20 connects outside zero line, and the ground wire incoming end 30 is equivalent to outside live wire is connect, the at this moment zero line access There is potential difference between end 20 and the ground wire incoming end 30.Therefore, described in the electric current will enter from the zero line incoming end 20 After rectification circuit 51 carries out rectification, then pass through the dropping resistor 521 and be depressured, then first light-emittingdiode is bright Rise, 1,2 ends of the photoelectrical coupler 531 are electroluminescent to lead to 3,4 terminations, and the G ends of the controllable silicon 61 are powered to cause A, and K poles connect Logical, the electric current at this moment flowing through two relays 71 is no longer flow towards second light-emittingdiode and the normal circuit resistance 3, But the reset switch 4 and the controllable silicon 61 are flowed to, therefore, when the electric current for flowing through two relays 71,72 increases to Meet that two relays 71,72 can be each turned off live wire and ground wire that the safety connects electric system, while second hair Near-infrafed photodiodes extinguish, the output end 80 not output voltage.It is worth mentioning, the controllable silicon 61 and second light-emitting diodes Body and the normal circuit resistance 3 are in parallel, and the A of the controllable silicon 61, K poles are connected, equivalent to second light-emittingdiode and The short circuit of normal circuit resistance 3, therefore electric current will not flow to second light-emittingdiode and the normal circuit resistance 3.
It is worth mentioning, the safety connects the ground wire electrification of electric system when discharging failure, may and need not connect again Line, therefore the A of the controllable silicon 61 extremely persistently has voltage output.So even if after failture evacuation, the control of the controllable silicon 61 Pole G does not have trigger signal, A extremely, and K poles remain switched on, and two relays 71,72 still maintain to disconnect live wire ground wire, now need The reset switch 4 is disconnected once to cut off the voltage output of the A poles of the controllable silicon 61 so that the A of the controllable silicon 61, K poles disconnect, such two relay 71,72 can just make the safety connect electric system inside live wire and internal ground wire reset connect It is logical, while second light-emittingdiode is lighted, and the reset switch 4 is resetted after connecting because failure has been drained off, it is described The G of controllable silicon 61 does not have trigger signal extremely, and the A of the controllable silicon 61, K poles still remain open.
It is worth mentioning, only as a displaying of concrete methods of realizing in Fig. 2, wherein, itself resistance of each resistance or each Although the value relatable between resistance need to meet some requirements but be not limited to the resistance marked in figure.In addition, 12V voltages Acquisition be not necessarily required to additionally from electric control draw obtain, it is directly inserted from the live wire and zero line of socket as shown in Figure 3 Obtained after carrying out voltage acquisition between hole by transformation voltage stabilizing.Particularly, controllable silicon, relay, photoelectrical coupler etc. have can The function element of replacement, it is integrated in functional module as show in Figure 3.
In a preferred embodiment of the invention, as shown in Fig. 2 the safe power connection equipment includes a live wire incoming end 10, One zero line incoming end 20, a ground wire incoming end 30, a distribution controller 40, one detection circuit 50, a controllable silicon 61, a live wire after Electrical equipment 71, a ground line relay 72, an output end 80.The detection circuit 50 includes a rectification circuit 51, a dropping resistor 521, a photoelectrical coupler 531.
The distribution controller 40 is electrically connected the live wire incoming end 10 and the zero line incoming end 20.The rectification Circuit 51 electrically connects the zero line incoming end 20 and the ground wire incoming end 30.The dropping resistor 521 electrically connects the rectification Circuit 51.The photoelectrical coupler 531 electrically connects the rectification circuit 51 and the dropping resistor 521.The controllable silicon The 61 electrical connection photoelectrical couplers 531, the live wire relay 71 and described ground line relay 72, the output end 80 are electrically connected Connect the live wire relay 71 and described ground line relay 72.
Therefore, for the safe power connection equipment in normal wiring, the live wire incoming end 10 connects outside live wire, the zero line Incoming end 20 connects outside zero line, and the ground wire incoming end 30 connects external thread, at this moment the zero line incoming end 20 and the ground wire Without potential difference between incoming end 30, therefore the output end 80 can normal output voltage.Further say, because the zero line accesses Without potential difference between end 20 and the ground wire incoming end 30, so the rectification circuit 51, the dropping resistor 521, the light Electric coupler 531, and the controllable silicon 61 will not be run, and the live wire relay 71 and described ground line relay 72 are distinguished The live wire and ground wire of the safe power connection equipment are connected, so external electric energy connects through the live wire incoming end 10 and the zero line When entering end 20, the output end 80 can normal output voltage.
It is worth mentioning, when external electric energy is via the live wire incoming end 10 and the zero line incoming end 20, the distribution Controller 40 can carry out electric energy conversion.Further to say, the distribution controller 40 includes a voltage acquisition module 41, One voltage transformation module 42 and an IC Voltage stabilizing modules 43, wherein the voltage acquisition module 41 electrically connects the voltage transformation module 42, the voltage transformation module 42 electrically connects the IC Voltage stabilizing modules 43, and such external electric energy is by the He of live wire incoming end 10 After the zero line incoming end 20 enters the distribution controller 40, transmitted after being acquired voltage by the voltage acquisition module 41 To the voltage transformation module 42, and after changing voltage by the voltage transformation module 42, provided by the IC Voltage stabilizing modules 43 The regulation of burning voltage.
In addition, the safe power connection equipment is when zero live wire is reversed, the live wire incoming end 10 connects outside zero line, described zero Line incoming end 20 connects outside live wire, and the ground wire incoming end 30 connects external thread, at this moment the zero line incoming end 20 and described There is potential difference between line incoming end 30.Therefore, after the electric current will be from the zero line incoming end 20 into the rectification circuit 51, It is depressured again by the dropping resistor 521, then by the photoelectrical coupler 531 and the controllable silicon 61, and make described Live wire relay 71 and described ground line relay 72 are each turned off the live wire and ground wire of the safe power connection equipment, hence in so that institute The output of electric energy can not be provided by stating safe power connection equipment.At this moment if correction causes zero live wire correct wiring, that is to say, that the fire Line incoming end 10 connects outside live wire, and the zero line incoming end 20 connects outside zero line, and the ground wire incoming end 30 connects external thread, institute State between zero line incoming end 20 and the ground wire incoming end 30 without potential difference, therefore the photoelectrical coupler 531 and the controllable silicon 61 disconnect, and the electric current for flowing through the live wire relay 71 and described ground line relay 72 is not enough to disconnect the safety and connects electricity The live wire and ground wire of device, therefore the output end 80 can normal output voltage.
For the safe power connection equipment in ground wire electrification, i.e., described live wire incoming end 10 connects outside live wire, and the zero line connects Enter end and 20 connect outside zero line, the ground wire incoming end 30 is equivalent to outside live wire is connect, the at this moment zero line incoming end 20 and described There is potential difference between ground wire incoming end 30.Therefore, after electric current will be from the ground wire incoming end 30 into the rectification circuit 51, then Be depressured by the dropping resistor 521, then by the photoelectrical coupler 531 1,2 ends it is electroluminescent make 3,4 terminations logical, and Make the G of the controllable silicon 61 is extremely powered to cause A, K poles are connected, and divide the live wire relay 71 and described ground line relay 72 The live wire and ground wire of the safe power connection equipment are not disconnected, hence in so that the safe power connection equipment can not provide the defeated of electric energy Go out.
In a preferred embodiment of the invention, the safe power connection equipment also includes a fault display unit 1, and one is normal aobvious Show unit 2, a normal circuit resistance 3, and a reset switch 4.The fault display unit 1 is arranged at the dropping resistor Between 521 and the photoelectrical coupler 531, therefore, when zero live wire is reversed or during the ground wire electrification of the safe power connection equipment, Wherein described electric current will be flowed through between the dropping resistor 521 and the photoelectrical coupler 531, so that the malfunction coefficient list Member 1 operates, to reach alarming effect.The normal display unit 2 is connected to the normal circuit resistance 3 simultaneously while described in connection Live wire relay 71 and described ground line relay 72, therefore, when the live wire relay 71 and described ground line relay 72 are distinguished When connecting the inside live wire and internal ground wire of the safe power connection equipment, wherein electric current will flow through the normal He of display unit 2 The normal circuit resistance 3, to reach prompting effect.The reset switch 4 is arranged at the live wire relay 71 and described Between line relay 72 and the controllable silicon 61, wherein the reset switch 4 is normally closed switch, so when zero live wire is reversed, Flow through the live wire relay 71 and described ground line relay 72 electric current be no longer flow towards the normal display unit 2 and it is described just Normal circuitous resistance 3, but the reset switch 4 and the controllable silicon 61 are flowed to, therefore flow through the live wire relay 71 and institute The electric current for stating ground line relay 72 will be increased to and meet that the live wire relay 71 and described ground line relay 72 disconnect the peace The live wire and ground wire of full power connection equipment, at this moment described normal display unit 2 will be inoperative, and the output end 80 does not export electricity Pressure.Especially, the live wire of the safe power connection equipment and ground wire is resetted after connecting even if disconnecting the reset switch 4, treat institute State reset switch 4 to reset, the live wire and ground wire of the safe power connection equipment can still disconnect, and only in disconnecting circuit and correction cause After zero live wire correct wiring, without potential difference between the zero line incoming end 20 and the ground wire incoming end 30, and the failure Display unit 1 is inoperative, and the photoelectrical coupler 531 disconnects, separated, the He of live wire relay 71 of the controllable silicon 61 The electric current of described ground line relay 72 is not enough to disconnect the live wire and ground wire of the safe power connection equipment, therefore resets and connect the peace The live wire and ground wire of full power connection equipment, while the normal display unit 2 is run, and the disconnection reset switch 4 does not influence now Stateful, then the output end 80 normally exports.
It is worth mentioning, the fault display unit 1 can be embodied as at least one first light-emittingdiode, the normal display Unit 2 can be embodied as at least one second light-emittingdiode.
Therefore, further say, for the safe power connection equipment when zero live wire is reversed, the live wire incoming end 10 connects outside Zero line, the zero line incoming end 20 connect outside live wire, and the ground wire incoming end 30 connects external thread, at this moment the zero line incoming end There is potential difference between 20 and the ground wire incoming end 30.Therefore, the electric current will flow through described whole from the zero line incoming end 20 After current circuit 51 carries out rectification, then pass through the dropping resistor 521 and be depressured, then first light-emittingdiode lights, 1,2 ends of the photoelectrical coupler 531 are electroluminescent to make 3,4 terminations logical, and the G of the controllable silicon 61 is extremely powered to cause A, and K poles are connected, this The electric current of live wire relay 71 and described ground line relay 72 described in Shi Liujing is not flowing to second light-emittingdiode and institute Normal circuit resistance 3 is stated, but flows to the reset switch 4 and the controllable silicon 61, therefore, when flowing through the live wire relay 71 and the electric current of described ground line relay 72 increase to and meet that the live wire relay 71 and described ground line relay 72 can divide The live wire and ground wire of the safe power connection equipment are not disconnected, while second light-emittingdiode extinguishes, the output end 80 is not Output voltage.It to be worth mentioning, the controllable silicon 61 is in parallel with second light-emittingdiode and the normal circuit resistance 3, The A of the controllable silicon 61, K poles are connected, short-circuit equivalent to second light-emittingdiode and the normal circuit resistance 3, therefore Electric current will not flow to second light-emittingdiode and the normal circuit resistance 3.In addition, even if disconnect the reset switch 4 The live wire of the safe power connection equipment and ground wire is resetted after connecting, treat that the reset switch 4 resets, the safe power connection equipment Live wire and ground wire can still disconnect, only disconnecting circuit and correct cause zero live wire correct wiring after, the zero line incoming end Without potential difference between 20 and the ground wire incoming end 30, first light-emittingdiode extinguishes, the photoelectrical coupler 531 3, 4 ends disconnect, the A of the controllable silicon, separated (A poles disconnect without output voltage, AK poles during correction) of K poles, the fire The electric current of line relay 71 and described ground line relay 72 is not enough to disconnect the live wire and ground wire of the safe power connection equipment, thus The live wire and ground wire for connecting the safe power connection equipment are resetted, while second light-emittingdiode is lighted, and disconnect described multiple Bit switch 4 does not influence standing state, and the output end 80 can normal output voltage.
In addition, in the ground wire electrification of the safe power connection equipment, i.e., described live wire incoming end 10 connects outside live wire, described Zero line incoming end 20 connects outside zero line, and the ground wire incoming end 30 is equivalent to outside live wire is connect, the at this moment zero line incoming end 20 There is potential difference between the ground wire incoming end 30.Therefore, the electric current will flow through the rectification from the zero line incoming end 20 After circuit 51 carries out rectification, then pass through the dropping resistor 521 and be depressured, then first light-emittingdiode lights, institute The 1 of photoelectrical coupler 531 is stated, 2 ends are electroluminescent to make 3,4 terminations logical, and the G ends of the controllable silicon 61 are powered to cause A, and K poles are connected, at this moment The electric current for flowing through two relays 71 is no longer flow towards second light-emittingdiode and the normal circuit resistance 3, but flows To the reset switch 4 and the controllable silicon 61, therefore, meet institute when the electric current for flowing through two relays 71,72 increases to The live wire and ground wire of the safe power connection equipment can be each turned off by stating live wire relay 71 and described ground line relay 72, simultaneously Second light-emittingdiode extinguishes, the output end 80 not output voltage.It is worth mentioning, the controllable silicon 61 and described the Two light-emittingdiodes and the normal circuit resistance 3 are in parallel, and the A of the controllable silicon 61, K poles are connected, equivalent to the described second hair Near-infrafed photodiodes and the short circuit of the normal circuit resistance 3, therefore electric current will not flow to second light-emittingdiode and described normal Circuitous resistance 3.
It is worth mentioning, the ground wire electrification of the safe power connection equipment may and need not connect again when discharging failure Line, therefore the A of the controllable silicon 61 extremely persistently has voltage output.So even if after failture evacuation, the G poles of the controllable silicon 61 There is no trigger signal, A, K poles remain switched on, and the live wire relay 71 and described ground line relay 72 still maintain to disconnect live wire Ground wire, now need to disconnect once the reset switch 4 to cut off the voltage output of the A poles of the controllable silicon 61 so that described The A of controllable silicon 61, K pole disconnect, and said live wire relay 71 and described ground line relay 72 just can make the safety connect electricity The live wire of device resets with ground wire to be connected, while second light-emittingdiode is lighted, and the reset switch 4 is resetted after connecting Because failure has been drained off, the G of the controllable silicon 61 does not have trigger signal extremely, and the A of the controllable silicon 61, K poles still remain open.
The present invention also provides a safety and connects electric mistake proofing circuitry phase detection method, including following steps：
(A) live wire incoming end 10, zero line incoming end 20 and ground wire incoming end 30 are respectively connecting to outside line；
(B) normal wiring is judged whether；
(C) when according to (B) normal wiring, the normally output power supply of output end 80；
(D) when according to (B) false wiring, output end 80 can not export power supply；And
(E) wiring, the normally output power supply of output end 80 are corrected according to (D).
According to step (B), it whether there is potential difference between the zero line incoming end 20 and the ground wire incoming end 30 Judge whether normal wiring, no potential difference is normal wiring, on the contrary then false wiring.
According to step (B), judge whether normal wiring via fault display unit 1 and normal display unit 2 to facilitate.Change Yan Zhi, the fault display unit 1 is arranged between dropping resistor 521 and photoelectrical coupler 531, therefore internally zero live wire connects When inverse time or powered internal ground wire, operate the fault display unit 1, to reach alarming effect.In addition, normal display unit 2 are connected to normal circuit resistance 3 and connect live wire relay 71 and ground line relay 72 simultaneously, when the He of live wire relay 71 When described ground line relay 72 is respectively communicated with the live wire and ground wire of inside, wherein electric current will flow through the normal He of display unit 2 The normal circuit resistance 3, to reach prompting effect.
Especially, the fault display unit 1 can be embodied as at least one first light-emittingdiode, the normal display unit 2 can be embodied as at least one second light-emittingdiode.
According to step (C), during normal wiring, two execution electronic switches 70 are respectively communicated with the internal live wire and the inside Ground wire.
According to step (C), during normal wiring, live wire relay and ground line relay 72 be respectively communicated with the internal live wire and The internal ground wire.
According to step (D), there is potential difference between the zero line incoming end 20 and the ground wire incoming end 30.Therefore, electric current Rectification circuit 51 will be entered, reduction voltage circuit 52, detect electronic switch 53, drive electronic switch 60, and make the two execution electronics Switch 70 is each turned off the live wire and ground wire of inside, and then the output end 80 can not be exported power supply.
According to step (D), there is potential difference between the zero line incoming end 20 and the ground wire incoming end 30.Therefore, electric current After the rectification of rectification circuit 51 being entered, it is depressured through the dropping resistor 521, then 1,2 by the photoelectrical coupler 531 Hold it is electroluminescent make 3,4 terminations logical, and make the G of controllable silicon 61 is extremely powered to cause A, K poles are connected, and make the live wire relay 71 and institute State ground line relay 72 and be each turned off the live wire and ground wire of inside, and then the output end 80 can not be exported power supply.
According to step (E), correction wiring is that the live wire incoming end 10 connects outside live wire, and the zero line incoming end 20 connects outer Portion's zero line, the ground wire incoming end 30 connect external thread, and make between the zero line incoming end 20 and the ground wire incoming end 30 Without potential difference.Especially, when, without potential difference, flowing through and held described in two between the zero line incoming end 20 and the ground wire incoming end 30 The electric current of row electronic switch 70 is not enough to the live wire and ground wire of breaking inner, therefore the output end 80 can normal output voltage.
According to step (E), correction wiring is that the live wire incoming end 10 connects outside live wire, and the zero line incoming end 20 connects outer Portion's zero line, the ground wire incoming end 30 connect external thread, and make between the zero line incoming end 20 and the ground wire incoming end 30 Without potential difference.Especially, when, without potential difference, flowing through the live wire between the zero line incoming end 20 and the ground wire incoming end 30 The electric current of relay 71 and described ground line relay 72 is not enough to the live wire and ground wire of breaking inner, therefore the output end 80 can Normal output voltage.
It should be understood by those skilled in the art that the embodiments of the invention shown in foregoing description and accompanying drawing are only used as illustrating And it is not intended to limit the present invention.The purpose of the present invention completely and effectively realizes.The function and structural principle of the present invention exists Show and illustrate in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.

Claims (32)

1. a safety connects electric system, it is characterised in that including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
At least one detection circuit, it is arranged between the zero line incoming end and the ground wire incoming end；
At least one performs electronic switch, and it is arranged at the inside live wire or internal ground wire that the safety connects electric system；And
An at least output end, it is the power supply output end that the safety connects electric system, wherein in normal wiring, the zero line connects Enter without potential difference between end and the ground wire incoming end, it is described in false wiring so as to the output end normal output voltage There is potential difference between zero line incoming end and the ground wire incoming end, the detection circuit will produce a trigger signal, and make so as to touch The electronic switch that performs disconnects inside live wire or internal ground wire that the safety connects electric system, so that the output end can not be for Electricity.
2. safety according to claim 1 connects electric system, wherein the detection circuit includes a rectification circuit, a decompression electricity Road, and at least one detection electronic switch, wherein being connected with each other in regular turn each other, so when the zero line incoming end and the ground wire connect When entering to produce potential difference between holding, will produce electric current makes to be depressured by the rectifier circuit rectifies and the reduction voltage circuit respectively Afterwards, the detection electronic switch is made to provide the trigger signal so that the execution electronic switch disconnects.
3. safety according to claim 2 connects electric system, including an at least distribution controller, it includes at least one Voltage acquisition module, an at least voltage transformation module and at least an IC Voltage stabilizing modules, wherein the voltage acquisition module electrically connects The voltage transformation module, the voltage transformation module electrically connect the IC Voltage stabilizing modules, and external electric energy will be connect by the live wire Enter end and the zero line incoming end enter the distribution controller after, transmitted after being acquired voltage by the voltage acquisition module After changing voltage to the voltage transformation module and by the voltage transformation module, burning voltage is provided by the IC Voltage stabilizing modules Regulation.
4. safety according to claim 3 connects electric system, also show wherein the safety connects electric system including an at least failure Showing unit, it is connected to the detection circuit, when having potential difference between the zero line incoming end and the ground wire incoming end, from And the fault display unit is operated, to reach alarming effect.
5. safety according to claim 4 connects electric system, also normally show including at least one wherein the safety connects electric system Show unit and at least a normal circuit resistance, the normal display unit is connected to described in the normal circuit resistance and connection Electronic cutting is performed, when the execution electronic switch, which connects the safety, connects the inside live wire or internal ground wire of electric system, wherein Electric current will flow through the normal display unit and the normal circuit resistance, to reach prompting effect.
6. safety according to claim 5 connects electric system, also opened wherein the safety connects electric system including at least one reset Close, it is arranged between the execution electronic switch and the detection electronic switch.
7. safety according to claim 6 connects electric system, wherein also including at least one driving electronic switch, wherein described hold Row electronic switch quantity is two, and two electronic switches that perform are connected to the driving electronic switch and are connected to described Internal live wire and internal ground wire.
8. safety according to claim 7 connects electric system, wherein the reduction voltage circuit is embodied as an at least dropping resistor, institute State detection electronic switch and be embodied as an at least photoelectrical coupler, the driving electronic switch is embodied as an at least controllable silicon, two institutes To state execution electronic switch and be embodied as two relays respectively, the fault display unit is embodied as at least one first light-emittingdiode, The normal display unit is embodied as at least one second light-emittingdiode.
9. safety according to claim 8 connects electric system, wherein the zero line incoming end and the live wire incoming end with it is outer When portion's circuit is reversed, there is potential difference between the zero line incoming end and the ground wire incoming end, electric current enters the rectification circuit After carrying out rectification, then pass through the reduction voltage circuit and be depressured, then first light-emittingdiode lights, the photoelectric coupling The two pins input of device, which is energized, causes the two pins output end of the photoelectrical coupler to be switched on, the G poles of the controllable silicon Powered to cause A, K poles are connected, and the electric current for flowing through two relays is no longer flow towards second light-emittingdiode and described normal Circuitous resistance, but the reset switch and the controllable silicon are flowed to, and the electric current for flowing through two relays is increased to Meet that two relays can be each turned off inside live wire and internal ground wire that the safety connects electric system, while described second Light-emittingdiode stops luminous, the output end not output voltage.
10. safety according to claim 9 connects electric system, wherein in disconnecting circuit and correcting so that the zero line incoming end After the live wire incoming end correct wiring, without potential difference between the zero line incoming end and the ground wire incoming end, so as to institute State the first light-emittingdiode and stop luminous, the two pins output end of the photoelectrical coupler disconnects, the A of the controllable silicon, K poles it Separated, the relay no current supply disconnects inside live wire and internal ground wire that the safety connects electric system, thus resets Inside live wire and internal ground wire that the safety connects electric system are connected, while second light-emittingdiode lights, and disconnect institute Stating reset switch does not influence standing state, the output end normal output voltage.
11. safety according to claim 10 connects electric system, wherein the safety connect electric system internal ground wire it is powered when, The electric current for flowing through two relays is increased to and meets that two relays can be each turned off the safety and connect electric system Internal live wire and internal ground wire, so as to the output end not output voltage.
12. safety according to claim 11 connects electric system, wherein the safety connect electric system internal ground wire it is powered , it is necessary to disconnect once the reset switch to cut off the voltage output of the A poles of the controllable silicon when fixing a breakdown so that it is described can The A of silicon is controlled, K poles disconnect, and two relays, which are reset, connects inside live wire and internal ground wire that the safety connects electric system, and After failure is excluded the reset switch reset connection, the G of the controllable silicon does not have trigger signal, the A of the controllable silicon, K extremely Pole still remains open.
A 13. safe power connection equipment, it is characterised in that including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
An at least distribution controller, it electrically connects the inside live wire and zero line that the safety connects electric system；
At least one detection circuit, it is arranged between the zero line incoming end and the ground wire incoming end；
At least one performs electronic switch, and it is arranged at the inside live wire or internal ground wire that the safety connects electric system；And
An at least output end, it is the power supply output end that the safety connects electric system, wherein in normal wiring, the zero line connects Enter without potential difference between end and the ground wire incoming end, it is described in false wiring so as to the output end normal output voltage There is potential difference between zero line incoming end and the ground wire incoming end, the detection circuit will produce a trigger signal, and make so as to touch The electronic switch that performs disconnects inside live wire or internal ground wire that the safety connects electric system, so that the output end can not be for Electricity.
14. safe power connection equipment according to claim 13, wherein the detection circuit includes a rectification circuit, a decompression Resistance, and an at least photoelectrical coupler, wherein being connected with each other in regular turn each other, so when the zero line incoming end and the ground wire connect When entering to produce potential difference between holding, will produce electric current makes to be depressured by the rectifier circuit rectifies and the dropping resistor respectively Afterwards, the photoelectrical coupler is made to provide the trigger signal so that the execution electronic switch disconnects.
15. safe power connection equipment according to claim 14, wherein the safe power connection equipment also includes at least one first Light-emittingdiode, it is arranged between the dropping resistor and the photoelectrical coupler, in the zero line incoming end and described When having potential difference between line incoming end, so that first light-emittingdiode operates, to reach alarming effect.
16. safety according to claim 15 connects electricity system device, wherein the safety, which connects electricity system device, also includes at least one Second light-emittingdiode, second light-emittingdiode are connected the execution electronic switch, when the execution electronic cutting connection Lead to the safe power connection equipment inside live wire or internal ground wire when, wherein electric current flows through second light-emittingdiode, with up to To prompting effect.
A 17. safe power connection equipment, it is characterised in that including：
An at least live wire incoming end, it electrically connects the inside live wire that the safety connects electric system；
An at least zero line incoming end, it electrically connects the inside zero line that the safety connects electric system；
An at least ground wire incoming end, it electrically connects the internal ground wire that the safety connects electric system；
An at least distribution controller, it electrically connects the inside live wire and zero line that the safety connects electric system；
An at least rectification circuit, it electrically connects the zero line incoming end and the ground wire incoming end；
An at least dropping resistor, it electrically connects the rectification circuit；
An at least photoelectrical coupler, it electrically connects the dropping resistor；
An at least controllable silicon, it electrically connects the photoelectrical coupler and the distribution controller；
An at least live wire relay, it electrically connects the controllable silicon and the internal live wire；
An at least ground line relay, it electrically connects the controllable silicon and the internal ground wire；And
An at least output end, it is the power supply output end of the safe power connection equipment, so in normal wiring, wherein described zero Without potential difference between line incoming end and the ground wire incoming end, so that the output end normal output voltage, in false wiring, There is potential difference between wherein described zero line incoming end and the ground wire incoming end, rectification is carried out by the rectification circuit, it is described Dropping resistor is depressured, and the photoelectrical coupler and the controllable silicon are switched on, and flows through the live wire relay and described The electric current of ground line relay, which is increased to, meets that the live wire relay and described ground line relay disconnect the safety and connect Denso The live wire and ground wire put, so that the output end can not power.
18. safe power connection equipment according to claim 17, wherein the distribution controller includes a voltage acquisition mould Block, a voltage transformation module and an IC Voltage stabilizing modules, wherein the voltage acquisition module electrically connects the voltage transformation module, institute State voltage transformation module and electrically connect the IC Voltage stabilizing modules, external electric energy is entered by the live wire incoming end and the zero line incoming end After entering the distribution controller, it is acquired by the voltage acquisition module after voltage and is sent to the voltage transformation module, and After changing voltage by the voltage transformation module, the regulation of burning voltage is provided by the IC Voltage stabilizing modules.
19. safe power connection equipment according to claim 17, wherein the safe power connection equipment also includes an at least failure Display unit, it is arranged between the dropping resistor and the photoelectrical coupler, in the zero line incoming end and the ground wire When having potential difference between incoming end, so that the fault display unit operates, to reach alarming effect.
20. safety according to claim 19 connects electricity system device, wherein the safety, which connects electricity system device, also includes at least one Normal display unit and an at least normal circuit resistance, the normal display unit be simultaneously attached the live wire relay and Described ground line relay, when the live wire relay and described ground line relay are respectively communicated with the inside of the safe power connection equipment When live wire and internal ground wire, wherein electric current flows through the normal display unit and the normal circuit resistance, and effect is reminded to reach Fruit.
21. safe power connection equipment according to claim 20, wherein the safe power connection equipment also resets including at least one Switch, it is arranged between the live wire relay and described ground line relay and the controllable silicon.
22. safe power connection equipment according to claim 21, wherein the fault display unit is embodied as at least one first Light-emittingdiode, the normal display unit are embodied as at least one second light-emittingdiode.
23. a safety connects electric mistake proofing circuitry phase detection method, it is characterised in that comprises the following steps：
(A) live wire incoming end, zero line incoming end and ground wire incoming end are respectively connected to outside line；
(B) normal wiring is judged whether；
(C) when being judged as normal wiring in the step (B), output end normally exports power supply；
(D) when being judged as false wiring in the step (B), output end can not export power supply；And
(E) wiring is corrected according to the step (D), output end normally exports power supply.
24. safety according to claim 23 connects electric mistake proofing circuitry phase detection method, wherein according to the step (B), warp By judging whether normal wiring with the presence or absence of potential difference between the zero line incoming end and the ground wire incoming end, no potential difference is Normal wiring, on the contrary then false wiring.
25. safety according to claim 23 connects electric mistake proofing circuitry phase detection method, wherein according to the step (B), warp By fault display unit and normal display unit to judge whether normal wiring, wherein the fault display unit is arranged at drop Between piezoresistance and photoelectrical coupler, so as to internally zero live wire by it is reversed when or internal ground wire it is powered when, show the failure Show cell operation, to reach alarming effect, wherein normal display unit is connected to normal circuit resistance and while is connected fiery Line relay and ground line relay, when the live wire relay and described ground line relay are respectively communicated with the internal live wire and institute When stating internal ground wire, wherein electric current flows through the normal display unit and the normal circuit resistance, to reach prompting effect.
26. safety according to claim 23 connects electric mistake proofing circuitry phase detection method, wherein the fault display unit is real It is at least one first light-emittingdiode to apply, and the normal display unit is embodied as at least one second light-emittingdiode.
27. electric mistake proofing circuitry phase detection method is connect according to any described safety in claim 23-24, according to the step (C), wherein during normal wiring, two execution electronic switches are respectively communicated with the internal live wire and the internal ground wire.
28. electric mistake proofing circuitry phase detection method is connect according to any described safety in claim 23-24, according to the step (C), wherein during normal wiring, live wire relay and ground line relay are respectively communicated with the internal live wire and the internal ground wire.
29. electric mistake proofing circuitry phase detection method is connect according to any described safety in claim 23-24, according to the step (D), wherein having potential difference between the zero line incoming end and the ground wire incoming end, so as to which rectification circuit carries out rectification, decompression Circuit is depressured, and detects electronic switch and driving electronic switch is switched on, and the two execution electronic switches are each turned off interior The live wire and ground wire in portion, and then the output end can not be exported power supply.
30. electric mistake proofing circuitry phase detection method is connect according to any described safety in claim 23-24, according to the step (D), wherein there is potential difference between the zero line incoming end and the ground wire incoming end, the rectification circuit carries out rectification, described Dropping resistor is depressured, then is energized by the two pins input of the photoelectrical coupler and is caused the photoelectrical coupler Two pins output end is switched on, and makes the G of controllable silicon is extremely powered to cause A, and K poles are connected, and makes the live wire relay and described Ground line relay is each turned off the live wire and ground wire of inside, and then the output end can not be exported power supply.
31. safety according to claim 29 connects electric mistake proofing circuitry phase detection method, wherein correction wiring is the live wire The outside live wire of access termination, the outside zero line of zero line access termination, the ground wire access termination external thread, and make described zero Without potential difference between line incoming end and the ground wire incoming end.
32. safety according to claim 30 connects electric mistake proofing circuitry phase detection method, wherein correction wiring is the live wire The outside live wire of access termination, the outside zero line of zero line access termination, the ground wire access termination external thread, and make described zero Without potential difference between line incoming end and the ground wire incoming end, wherein, when the zero line incoming end and the ground wire incoming end it Between without potential difference, the electric current for flowing through the live wire relay and described ground line relay is not enough to the live wire and ground of breaking inner Line, so as to which the output end can normal output voltage.
CN201710741540.9A 2017-08-25 2017-08-25 Safe power connection equipment and system and its mistake proofing circuitry phase detection method Active CN107706902B (en)

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