CN107658838A

CN107658838A - AC single phase intelligent object

Info

Publication number: CN107658838A
Application number: CN201711081194.2A
Authority: CN
Inventors: 张坚
Original assignee: Hunan Electric Polytron Technologies Inc Ambrose
Current assignee: Hunan Electric Polytron Technologies Inc Ambrose
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2018-02-02
Anticipated expiration: 2037-11-06
Also published as: CN107658838B

Abstract

A kind of AC single phase intelligent object, by box body, intelligent electric-controlled plate, transformer, epoxy resin is formed, box body 1 is built with intelligent electric-controlled plate 2, power circuit is housed on intelligent electric-controlled plate 2, fault-free automatic reclosing circuit, fault signal processing circuit, overload, short circuit, electric-leakage detection circuit, inverse work(preliminary examination circuit, cross, Undervoltage detection circuit, drive control circuit, the live wire and zero line of external electrical source access intelligent electric-controlled plate 2 through plug-in unit 8 and its connecting line, the live wire and zero line at external loading end access intelligent electric-controlled plate 2 through plug-in unit 7 and its connecting line, the zero sequence current mutual inductor BL of load end₁Intelligent electric-controlled plate 2, the current transformer BL of load end are accessed through plug-in unit 6 and its connecting line₂Intelligent electric-controlled plate 2 is accessed through plug-in unit 5 and its connecting line, intelligent control board 2 exports the execution component through plug-in unit 4 and its connecting line Access Control externally fed main circuit, the live wire and zero line of controlled external power supply main circuit pass through current transformer also cross zero-sequence current to sensor, live wire；Finally box body 1 and the envelope of intelligent electric-controlled plate 2 are filled into a module with epoxide-resin glue 3, the top of Light-Emitting Diode and the sounding face of buzzer on intelligent electric-controlled plate are protruded on the surface of epoxide-resin glue.Intelligence degree of the present invention is high, small volume, and supporting installation is simple, easy to use, cost-effective.

Description

AC single phase intelligent object

Technical field：

The present invention relates to electric equipment intelligent to protect control technology field, and in particular to one kind is arranged on electric equipment or connect Enter inside power outlet, the AC single phase intelligence of intelligent protection and control is carried out to electric equipment or the load equipment of power outlet Module.

Existing electric equipment and power outlet are all without what defencive function, only a small amount of high-grade electric equipment and electricity Supply socket is had the online inspection defencive function of electric leakage and protected using the online inspection of protective tube progress overload short circuit, far from intelligence Energy protection and intelligent control, therefore be easy to trigger equipment electrical hazard and electrical fire, while use is also inconvenient.

The content of the invention：

The technical problems to be solved by the invention are：Solve the above-mentioned problems of the prior art, and one kind is provided can be with AC single phase intelligent object inside electric equipment or power outlet, to electric equipment and the load of access power outlet The preliminary examination that equipment was carried out, the preliminary examination of under-voltage is protected and online inspection is protected, is leaked electricity is protected and online inspection is protected, overloaded, be short-circuit Preliminary examination protection and online inspection protect, inverse work(preliminary examination protection, and after tripping operation powers off, realize safe reclosing automatically.This hair Bright intelligence degree is high, small volume, and supporting installation is simple, easy to use, cost-effective.

The technical solution adopted by the present invention is：

A kind of AC single phase intelligent object, it is made up of box body, intelligent electric-controlled plate, transformer, epoxy resin, box body 1 is built-in Have intelligent electric-controlled plate 2, on intelligent electric-controlled plate 2 equipped with power circuit, fault-free automatic reclosing circuit, fault-signal processing electricity Road, overload, short circuit, electric-leakage detection circuit, inverse work(preliminary examination circuit, mistake, Undervoltage detection circuit, drive control circuit, external electrical The live wire and zero line of source access intelligent electric-controlled plate 2 through plug-in unit 8 and its connecting line, and the live wire and zero line at external loading end are through plug-in unit 7 and its connecting line access intelligent electric-controlled plate 2, the zero sequence current mutual inductor BL of load end₁Through plug-in unit 6 and its connecting line access intelligence Electric-controlled plate 2, the current transformer BL of load end₂Intelligent electric-controlled plate 2 is accessed through plug-in unit 5 and its connecting line, intelligent control board 2 exports Execution component through plug-in unit 4 and its connecting line Access Control externally fed main circuit, the live wire of controlled external power supply main circuit With zero line current transformer is passed through also cross zero-sequence current to sensor, live wire；Epoxide-resin glue 3 is finally used by box body 1 and intelligence Can electric-controlled plate 2 envelope fill into a module, the top of Light-Emitting Diode and the sounding face protrusion of buzzer on intelligent electric-controlled plate exist On the surface of epoxide-resin glue.

In above-mentioned technical proposal, the intelligent electric-controlled plate includes power circuit, fault-free automatic reclosing circuit, driving control Circuit processed, fault signal processing circuit, overload, short circuit, electric-leakage detection circuit, inverse work(preliminary examination circuit, mistakes, under-voltage detection are electric Road；Power circuit inputs the power end for being connected to externally fed main circuit, and power circuit output end is connected to fault-free automatic reclosing It is lock circuit, drive control circuit, fault signal processing circuit, mistake, Undervoltage detection circuit, inverse work(preliminary examination circuit, overload, short Road, electric-leakage detection circuit；Overload, the short-circuit, sampling of electric-leakage detection circuit are connected to the live wire of externally fed main circuit load end And zero line, the sampling of inverse work(preliminary examination circuit are connected to the live wire, zero line and the main electricity of externally fed at externally fed post circuit load end The zero line of road power end；Overload, short circuit, the output end of electric-leakage detection circuit, the output end and mistake, under-voltage of inverse work(preliminary examination circuit The output end of detection circuit is all connected to fault signal processing circuit；The output end of fault signal processing circuit is respectively connected to fault-free Automatic reclosing circuit and drive control circuit, the output of fault-free automatic reclosing circuit are connected to drive control circuit, drive The output of dynamic control circuit is connected to the execution component of control externally fed main circuit break-make.

In above-mentioned technology and case, described fault-free automatic reclosing circuit includes resistance R₂, adjustable resistance W₁, controllable silicon T₁IC₃、IC₄, relay J₁、J₂, light emitting diode FD₁With buzzer Y, IC₃1st pin is connected to fault-signal processing electricity Road IC₇11st pin, IC₃An adjustable resistance W is bridged between 2nd pin and the 3rd pin₁, IC₃5th pin is through flashing light alarm diode FD₁Connect To dc source negative terminal (), the first relay J₁It is connected across IC₃Between 6th pin and the 7th pin, the 7th pin is also connected to J simultaneously₁It is normal Open contact J_1-1, IC₃8th pin is connected to J₁Center contact, IC₃4th pin is grounded, IC₄10th pin is connected to IC in drive control circuit₈ 5th pin, IC₄9th pin is connected to IC in inverse work(preliminary examination circuit₅7th pin, IC₄8th pin and the 7th pin are respectively connected to overload, short circuit, electric leakage Detect R in circuit₃And R₄One end, R₃And R₄The other end be respectively connected to triode V₁And V₂Base stage, triode V₁And V₂Collection Electrode connects relay J respectively₃And J₄Coil, IC₄6th pin is connected to drive control IC circuit₈3rd pin, IC₄5th pin is through resistance R₂It is connected to controllable silicon T₁Control pole, T₁Control the 2nd relay J₂Break-make, J₂One group of normally-closed contact J_2-1IC is controlled again₄Work Make power supply.

In above-mentioned technical proposal, described fault signal processing circuit includes IC₇, leak current fault indicator lamp FD₆, overload, short trouble indicator lamp FD₅, adjustable resistance W₄、W₅, IC₇1st input pin was connected to, Undervoltage detection circuit IC₆'s 7th output pin, indicator lamp FD₆And FD₅Working power anode and IC are connected across respectively₇Between 3rd, the 4th pin, zero sequence current mutual inductance Device BL₁Secondary windings BL_1-2It is connected across IC₇Between 5th input pin and working power negative terminal, current transformer BL₂It is secondary around Group BL_2-2It is connected across IC₇Between 6th input pin and working power negative terminal, adjustable resistance W₅It is connected across IC₇8th pin and working power Between negative terminal, adjustable resistance W₄It is connected across IC₇Between 9th pin and working power negative terminal, IC₇The 10th input pin through the 3rd relay The normally opened contact J of device_3-1It is connected to the live wire L ', IC of externally fed main circuit load end₇11st output pin is connected to drive control circuit IC₈6th input pin, the 3rd triode V₃It is serially connected in power positive end and IC₇Between 13rd pin, V₃Base stage through resistance R₅It is connected to IC₄7th pin.

In above-mentioned technical proposal, described mistake, Undervoltage detection circuit include IC₆, under-voltage indicating fault Lamp FD₂, overvoltage malfunction indicator lamp FD₃, adjustable resistance W₂、W₃, indicator lamp FD₂It is connected across IC₆Between 1st pin and power positive end, FD₃It is connected across IC₆Between 6th pin and power positive end, adjustable resistance W₂、W₃IC is connected across respectively₆2nd, the 3rd pin and power supply negative terminal it Between.

In above-mentioned technical proposal, it is described overload, short circuit, electric-leakage detection circuit include resistance R₁、R₃、R₄、R₅, triode V₁、V₂、V₃, relay J₃、J₄, zero sequence current mutual inductance BL₁With Current Mutual Inductance BL₂；J₃And J₄One end be attempted by power positive end, J₄ The other end through triode V₂, resistance R₄It is connected to IC₄8th pin, J₃The other end through triode V₁, resistance R₃It is connected to IC₄7th pin, BL₁Armature winding BL_1-1An end be connected to the live wire L ', BL of externally fed main circuit load end_1-1The other end is through resistance R₁、J₄ One group of normally opened contact J_4-1It is connected to the upper end of power transformer B secondary output end, BL₁Secondary windings BL_1-2It is connected across IC₇ Between 5th input pin and working power negative terminal, the live wire L ' and zero line N ' of externally fed main circuit load end are also cross BL₁, BL₂Secondary BL_2-2It is connected across IC₇Between 6th input pin and working power negative terminal, the live wire L ' of externally fed main circuit load end Through BL₂, the 3rd relay J₃One group of normally opened contact J_3-1It is connected across IC₇10th pin and externally fed main circuit load end live wire Between L ', J₃Another group of contact J_3-2It is connected across between externally fed main circuit load end zero line N ' and working power negative terminal.

In above-mentioned technical proposal, described inverse work(preliminary examination circuit is by IC₅With inverse work(malfunction indicator lamp FD₄Form, IC₅1st and the 2nd two input pin is respectively connected to the live wire L ' and zero line N ' of externally fed main circuit load end, IC₅3rd pin is connected to The zero line N, IC at main circuit power end₅5th output pin is connected to fault signal processing circuit IC₇2nd input pin, inverse work(indicating fault Lamp FD₄It is connected across IC₅Between 6th pin and working power negative terminal, TC₅7th pin is connected to fault-free automatic reclosing IC circuit₄9th Pin.

In above-mentioned technical proposal, described drive control circuit includes IC₈, IC₈3rd input pin is connected to fault-free and weighed automatically Combined floodgate IC circuit₄6th output pin, IC₈5th, the 6th input pin is respectively connected to IC₄10th output pin and fault signal processing circuit IC₇11st output pin, IC₈The output pin of 2nd, the 7th and the 1st is connected to the execution component of control externally fed main circuit break-make.

In above-mentioned technical proposal, described execution component uses magnetic latching relay or magnetic relay or ac contactor Device.

In above-mentioned technical proposal, described IC₁、IC₂、IC₄For prior art integrated circuit, IC₁Model 78L12, IC₂Model 78L05, IC₄Model PLC16F505；IC₃、IC₅、IC₆、IC₇、IC₈The chip developed for the present invention, tool Body structure is as follows：

IC₃：That is the automatic reclosing chip developed of the present invention, enterprise model DQ001, the automatic reclosing chip is by resistance R₆To R₁₀, electric capacity C₅To C₈, diode D₅, triode V₄, controllable silicon T₂It is integrated in 555 circuits in a chip；The pin of chip the 1st Pass through diode D₅, resistance R₆Connect controllable silicon T₂Control pole, controllable silicon T₂The anode connection pin of chip the 8th is working power anode, Controllable silicon T₂Negative electrode connects 555 circuits 4,8 pin, chip the 2nd, the 7th pin and R₇Upper end, controllable silicon T₂Control pole and negative electrode also bridge There is electric capacity C₅, the pin of chip the 2nd also connects the pin of 555 circuit the 4th simultaneously and the 8th pin, the 6th pin of 555 circuits and the 7th pin both connect core The pin of piece the 3rd is further through electric capacity C₆Connect the pin of chip the 4th, the pin of 555 circuit the 1st and triode V₁Emitter stage also connects the pin of chip the 4th, The pin of 555 circuit the 5th passes through electric capacity C₇Connect the pin of chip the 4th, the resistance R that the pin of 555 circuit the 2nd passes through parallel connection₈, electric capacity C₈After connect The pin of chip the 4th, the pin of 555 circuit the 2nd also pass through resistance R₇Connect the pin of chip the 7th, the pin of chip the 7th and 555 circuits the 4th, 8 pin and core The pin of piece the 2nd connects, and the pin of 555 circuit the 3rd passes through resistance R₉Connecting triode V₄Base stage, triode V₄Colelctor electrode connects chip the 6th Pin, the pin of chip the 7th also pass through resistance R₁₀The pin of chip the 5th is connected, the pin of chip the 8th and the 4th pin connect working power anode V respectively_DD With working power negative terminal V_SS。

IC₅：The single phase ac that i.e. present invention develops protects chip, enterprise model DQ002, the blow-up against work(fault pretest The inverse work(fault pretest protection chip of stream, three full-wave rectifying circuits, a photoelectric coupling circuit and a control circuit are integrated In a chip, the inputs of three full-wave rectifying circuits connect respectively chip the 1st, 2,3 pin, three full-wave rectifying circuits Output end parallel connection after be connected to the input of photoelectric coupling circuit, the output end connection control circuit of photoelectric coupling circuit, control Circuit processed connection chip the 4th, 5,6,7,8 pin；Three full-wave rectifying circuits are by diode D₆To D₁₁Form, photoelectric coupling Circuit is by luminous tube FD₇With photistor V₅Form, control circuit is by resistance R₁₃To R₁₇, diode D₁₂To D₁₃, controllable silicon T₃ With triode V₆Form, three inputs of three full-wave rectifying circuits connect respectively chip the 1st, 2,3 pin, and the of chip 1st, 2,3 pin connect live wire L ', the zero line N ' and power end zero line N of load end respectively, and the output end of three full-wave rectifying circuits is simultaneously The input photoelectric tube FD of photoelectric coupling circuit is connected to after connection₇Both positive and negative polarity, the photistor V of photoelectric coupling circuit₅Output end It is connected on the controllable silicon T of control circuit₃Negative electrode and diode D₁₂Between anode, controllable silicon T₃Control pole is through resistance R₁₅It is connected to chip 7th pin, controllable silicon T₃Anode be connected to the pin of chip the 5th and through resistance R₁₆It is connected to triode V₆Base stage, triode V₆Colelctor electrode is through two Pole pipe D₁₃With resistance R₁₇It is connected to the pin of chip the 6th, the anode V of DC supply_DDThe pin of chip the 8th is connected to, DC supply Negative terminal V_SSIt is connected to the pin of chip the 4th.

IC₆：Mistake, the under-voltage detection chip that i.e. the present invention develops, enterprise model DQ003, this is crossed, under-voltage detection core Piece, by resistance R₁₈To R₂₃, two voltage detector U₂、U₃, a NOT gate U₄, one and door U₅It is integrated in a chip；It is described Voltage detector U₂Input connects two-way：It is connected all the way with the pin of chip the 2nd, another way passes through resistance R₁₉Connect with the pin of chip the 8th Connect；Voltage detector U₂Output end connects three tunnels：The first via and with door U₅One input is connected, and the second tunnel passes through resistance R₂₀With The pin of chip the 1st is connected, and the 3rd tunnel passes through resistance R₂₁It is connected with the pin of chip the 8th；The voltage detector U₃Input connects two-way： It is connected all the way with the pin of chip the 3rd, another way passes through resistance R₁₈It is connected with the pin of chip the 8th；Voltage detector U₃Output end connects two-way： All the way with NOT gate U₄Input be connected, another way passes through resistance R₂₂It is connected with the pin of chip the 8th；Voltage detector U₂、U₃Power supply Negative terminal is connected with the pin of chip the 4th, NOT gate U₄Output end connect two-way：All the way and with door U₅Another input be connected, it is another Road passes through resistance R₂₃It is connected with the pin of chip the 6th；With door U₅Output end be connected with the pin of chip the 7th.

IC₇：The fault signal processing circuit chip that i.e. present invention develops, enterprise model DQ004, fault-signal processing electricity Road chip, by resistance R₂₄To R₃₆, electric capacity C₉To C₁₃, diode D₁₄To D₂₃, controllable silicon T₄To T₆, four input nand gate U₆It is integrated in On one chip；Its pin of chips the 1st and the 2nd pin connect four input nand gate U respectively₆The 1st input and the 2nd input； The pin of chip the 3rd passes through resistance R₂₄, diode D₁₄Connect controllable silicon T₄Anode, the pin of chip the 4th pass through resistance R₂₅, diode D₁₅Even Meet controllable silicon T₅Anode, the pin of chip the 5th pass through diode D₁₆Connect controllable silicon T₄Control pole, the pin of chip the 6th pass through diode D₂₂、 Resistance R₃₅Connect controllable silicon T₅Control pole, the pin of chip the 8th connection controllable silicon T₅Control pole, the pin of chip the 9th connection controllable silicon T₆Control Pole, the pin of chip the 10th pass through resistance R₃₄、R₃₃Connect controllable silicon T₆Control pole, at the same time, the pin of chip the 10th pass through resistance R₃₄、 R₃₂、R₃₁Connect controllable silicon T₆Anode, the pin of chip the 11st connect four input nand gate U₆The pin of output end the 5th, the pin of chip the 13rd leads to Cross resistance R₃₁Connect controllable silicon T₆Anode, the pin of chip the 7th and the 14th pin connect working power negative terminal and anode, controllable silicon T respectively₄ Anode passes through diode D₁₈Connect four input nand gate U₆The 3rd input, controllable silicon T₅Anode passes through diode D₁₉Connection four Input nand gate U₆The 4th input, controllable silicon T₆Anode also passes through diode D₂₁, resistance R₂₉Connect controllable silicon T₅Control pole.

IC₈：The drive control circuit chip that i.e. present invention develops, enterprise model DQ005, the drive control circuit chip, By resistance R₃₇To R₄₂, diode D₂₄To D₂₈, voltage-regulator diode DW₁To DW₂, triode V₇To V₁₁, controllable silicon T₇It is integrated in one In chip；Wherein triode V₇Colelctor electrode and triode V₉Colelctor electrode is connected, triode V₈Colelctor electrode and triode V₁₀Colelctor electrode phase Even, triode V₇Emitter stage and triode V₈Emitter stage connection chip the 8th pin working power anode V_DD, triode V₉Emitter stage and Triode V₁₁Emitter stage connection chip the 4th pin working power negative terminal V_SS；Triode V₇、V₉Colelctor electrode connects the pin of chip the 2nd all the way, Another way passes through resistance R₄₀, voltage-regulator diode DW₂Connecting triode V₈Base stage；Triode V₈、V₁₁Colelctor electrode connects chip all the way 7th pin, another way pass through voltage-regulator diode DW₁, resistance R₃₉Connecting triode V₇Base stage；The pin of chip the 3rd passes through diode all the way D₂₆, resistance R₃₈Connecting triode V₉Base stage, another way pass through resistance R₃₇, diode D₂₅Connect controllable silicon T₇Control pole and three poles Pipe V₁₀Colelctor electrode, controllable silicon T₇Anode connects the pin of chip the 8th, controllable silicon T₇Negative electrode passes through diode D₂₄The connection pin of chip the 1st, three Pole pipe V₁₀Base stage passes through resistance R₄₂, diode D₂₈Connect the pin of chip the 5th, triode V₁₁Base stage passes through resistance R₄₁, diode D₂₇ Connect the pin of chip the 6th, diode D₂₇、D₂₈Negative terminal be connected.

Advantage and effect

Small volume of the present invention, it is convenient to inside high, middle-grade electric equipment, it might even be possible to inserted installed in power supply Seat the inside so that various high, middle-grade electrical equipment and power outlet all have inverse work(preliminary examination protection, cross, under-voltage preliminary examination protection and Online inspection protection, overload, short-circuit preliminary examination protection and online inspection protection, electric leakage preliminary examination protection and online inspection are protected, and fault-free is automatic The functions such as reclosing, intelligence degree of the present invention is high, and installation is simple, and easy to use, strong applicability is cost-effective, is worth energetically Popularization and application.

Brief description of the drawings

Fig. 1 is electrical principle block diagram of the present invention；

Fig. 2 is the overall installation diagram of the present invention；

Fig. 3 is electrical schematic diagram of the present invention；

Fig. 4 is IC of the present invention₃The internal electric schematic diagram of automatic reclosing chip；

Fig. 5 is IC of the present invention₅Internal electric schematic diagram of the single phase ac against work(fault pretest protection chip；

Fig. 6 is IC of the present invention₆Cross, the internal electric schematic diagram of under-voltage detection chip；

Fig. 7 is IC of the present invention₇The internal electric schematic diagram of fault signal processing circuit chip；

Fig. 8 is IC of the present invention₈The internal electric schematic diagram of drive control circuit chip.

The model of integrated circuit and chip used in figure：

IC₁:78L12； IC₂:78L05； IC₃:DQ001； IC₄:PIC16F505；

IC₅:DQ002； IC₆:DQ003； IC₇:DQ004； IC₈:DQ005。

Embodiment：

Below in conjunction with the accompanying drawings, the specific implementation to the present invention is described further：

Referring to Fig. 1, power circuit inputs the power end for being connected to main circuit, and its output is connected to fault-free automatic reclosing Circuit, drive control circuit, fault signal processing circuit, mistake, Undervoltage detection circuit, inverse work(preliminary examination circuit, overload, short circuit, Electric-leakage detection circuit, overload, the short-circuit, sampling of electric-leakage detection circuit are connected to the load end of main circuit, inverse work(preliminary examination circuit Sampling is connected to the live wire, zero line and the zero line at main circuit power end of main circuit load end, overloads, short-circuit electric-leakage detection circuit, Inverse work(preliminary examination circuit, cross, the output end of Undervoltage detection circuit is all connected to fault signal processing circuit, fault signal processing circuit Output end be respectively connected to fault-free automatic reclosing circuit and drive control circuit, the output of fault-free automatic reclosing circuit For termination without drive control circuit, the output of drive control circuit is connected to the performer of control main circuit break-make, the actuator Part can be magnetic latching relay or electromagnetic relay or A.C. contactor.

Referring to Fig. 2, the present invention is a kind of before the load termination energization source of main circuit, to various existing for main circuit Electric fault carries out preliminary examination protection, after the load termination energization source of main circuit, the various electrically events to main circuit generation Barrier carries out online inspection protection, and main circuit can be locked in disconnection shape by not only preliminary examination protection, and online protection can cut off main circuit, and After failture evacuation, can automatic reclosing connect main circuit, locking or cut-out main circuit when sound and light alarm, inform defect content AC single phase intelligent object.It is mainly made up of plastic casing, intelligent electric-controlled plate, transformer, epoxide-resin glue.Its feature is： For plastic casing 1 built with intelligent electric-controlled plate 2, intelligent electric-controlled plate 2 is provided with power circuit, fault-free automatic reclosing circuit, failure Signal processing circuit, overload, short circuit, electric-leakage detection circuit, inverse work(preliminary examination circuit, mistake, Undervoltage detection circuit and drive control Circuit；The live wire and zero line at main circuit power end are through inserting 8 and its intelligent electric-controlled plate 2 of connecting line access, the live wire of load end and zero Line accesses intelligent electric-controlled plate 2, zero sequence current mutual inductor BL through plug-in unit 7 and its connecting line₁Through plug-in unit 6 and its connecting line access intelligence Electric-controlled plate 2, current transformer BL₂Intelligent electric-controlled plate 2 is accessed through plug-in unit 5 and its connecting line, controls the actuator of main circuit break-make Part (magnetic latching relay or electromagnetic relay or A.C. contactor) accesses intelligent electric-controlled plate 2 through plug-in unit 4 and its connecting line, controlled The live wire and zero line of main circuit pass through current transformer also cross zero sequence current mutual inductor, live wire, will be moulded with epoxide-resin glue Magazine 1 and the envelope of intelligent electric-controlled plate 2 are filled into a module, the light emitting diode FD on electric-controlled plate 2₁To FD₆Top and buzzer Y Sounding face protrude on the surface of epoxide-resin glue.

Referring to Fig. 3, the circuit composition of the embodiment of the present invention is：

Power circuit is by transformer B, commutation diode D₁-D₄, electric capacity C₁、C₂、C₃、C₄, three-terminal voltage-stabilizing IC₁、IC₂Form, nothing Failure automatic reclosing electricity routing resistance R₂, adjustable resistance W₁, flashing diode FD₁, controllable silicon T₁, buzzer Y, integrated circuit IC₃、IC₄With relay J₁、J₂Form；Fault signal processing circuit is by adjustable resistance W₄、W₅, leak current fault indicator lamp FD₆, mistake Carry, short trouble indicator lamp FD₅And IC₇Form；Cross, Undervoltage detection circuit is by adjustable resistance W₂、W₃, under-voltage Malfunction indicator lamp FD₂, overvoltage malfunction indicator lamp FD₃, IC₆Form；Inverse work(preliminary examination circuit is by inverse work(malfunction indicator lamp FD₄And IC₅Form；Overload, short circuit, electric-leakage detection circuit are by resistance R₁、R₃、R₄、R₅Relay J₃、J₄, triode V₁、V₂、V₃, zero sequence current mutual inductor BL₁Summation current transformer BL₂Form.

After the present invention and logical main circuit power termination, power circuit energization work, DC operation electricity is provided for the present invention Source, as main circuit power end was not present, under-voltage failure, then cross, Undervoltage detection circuit IC₆7th output pin is high level, Before inverse work(preliminary examination circuit and overload, short circuit, electric-leakage detection circuit also do not press program work, fault signal processing circuit IC₇ 11st output pin is low level, the IC in fault-free automatic reclosing circuit₃1st input pin is low level, the 1st relay J₁Place In power-off release conditions, J₁Normally-closed contact J_1-1Closure, IC₄Electrification reset starts by program work, IC₄10th pin High level is changed into from low level and keeps a period of time, drive control IC circuit₈5th input pin is also changed into high level from low level And keep a period of time, IC₈1st output pin is continually maintained in Non voltage output state, if the execution of control main circuit break-make Device is electromagnetic relay or A.C. contactor, then electromagnetic relay or A.C. contactor are continually maintained in off-state, together When IC₈There is a negative pulse voltage output between 7th output pin and the 2nd output pin, the width of this pulse voltage is equal to IC₈5th The retention time of input pin high level, the requirement that meets magnetic latching relay conversion work state is entirely capable of, if controlling main electricity The performer of road break-make is magnetic latching relay, when magnetic latching relay has been off (positive reason before this Condition), then this negative pulse voltage will continue to be maintained at off-state, when magnetic latching relay locates closure state before this (abnormal condition), then this negative pulse voltage will make it be converted to off-state by closure state；No matter control main circuit leads to Disconnected performer is magnetic latching relay or electromagnetic relay or A.C. contactor, can ensure that the present invention is carrying out failure During preliminary examination, the power end and load end of main circuit are all in off-state, so as to prevent fault pretest false alarm；IC₄Continue by Program work, IC₄10th pin returns to low level, and the 9th output pin is changed into high level from low level and kept for a period of time, and inverse work(is pre- Examine IC circuit₅7th is similarly changed into high level from low level, starts to carry out main circuit load end inverse work(fault pretest, such as main Inverse work(failure, IC is not present in circuit load end₅5th output pin continues to keep high level, IC₇、IC₃、IC₈Continue to keep former work State；IC₄Continue by program work, IC₄9th pin returns to low level, and the present invention completes inverse work(preliminary examination task, IC₄8th output pin High level is changed into from low level and keeps high level for a period of time, second triode V₂Conducting, J₄Energization adhesive, J₄One group Normally opened tactile J_4-1Closure, start to carry out leak current fault preliminary examination to main circuit load end, as electric leakage event is not present in main circuit load end Hinder, then fault signal processing circuit IC₇5th input pin voltage<1V、IC₇、IC₃、IC₈It is continually maintained in former working condition, IC₄After It is continuous to press program work, IC₄8th pin returns to low level, V₂Cut-off, J₄Power-off release, is completed to main circuit load end leak current fault Preliminary examination task；IC₄Continue by program work, IC₄7th pin is changed into high level from low level and keeps a period of time, first three pole Pipe V₁With the 3rd triode V₃Conducting, the 3rd relay J₃Energization adhesive, IC₇13rd pin is connected with power positive end, J₃Two Group normally opened contact J_3-1、J_3-2Closure, start to overload main circuit load end, short trouble preliminary examination, such as main circuit load end In the absence of overload, short trouble, fault signal processing circuit IC₇10th input pin voltage will continue to keep>1V state, IC₇、 IC₈、IC₃Continue to keep former working condition, IC₄Continue by program work, IC₄7th pin returns to low level, V₁、V₃Cut-off, J₃Power-off Release, IC₇13rd pin and power end disconnect, and complete to main circuit load end overload, short trouble preliminary examination task；IC₄Continue by journey Sequence works, IC₄6th output pin is changed into high level from low level and keeps a period of time, drive control IC circuit₈3rd input pin High level is changed into from low level and keeps a period of time, IC₈There is a positive pulse voltage output between 7th pin and the 2nd pin, such as control The performer of main circuit break-make processed is magnetic latching relay, then this positive pulse voltage will make magnetic latching relay by disconnection shape State is converted to closure state, and the power end of main circuit is connected with load end.IC₈1st pin is changed into high level from low level, such as controls When the performer of main circuit break-make processed is electromagnetic relay or A.C. contactor, then electromagnetic relay or exchange tentaculum will be logical Electric adhesive, its normally opened contact connect the power end of main circuit with load end, IC₄Continue by program work, IC₄6th pin returns to low Level, the 5th pin are changed into high level, controllable silicon T from low level₁Conducting, J₂Energization adhesive, J₂Normally-closed contact J_2-1Disconnect, cut-out IC₄With relay J₃、J₄Working power, after ensureing that the load end in main circuit connects operation with power end, The present invention, without preliminary examination, is only examined online to main circuit.

Referring to Fig. 4-8, execution component of the present invention is connect using magnetic latching relay or electromagnetic relay or exchange Tentaculum.

In implementing circuit of the present invention, described IC₁、IC₂、IC₄For prior art integrated circuit, IC₁Model 78L12, IC₂Model 78L05, IC₄Model PLC16F505；IC₃、IC₅、IC₆、IC₇、IC₈The chip developed for the present invention, tool Body structure is as follows：

IC₃：That is the automatic reclosing chip developed of the present invention, enterprise model DQ001, the automatic reclosing chip is by resistance R₆To R₁₀, electric capacity C₅To C₈, diode D₅, triode V₄, controllable silicon T₂It is integrated in 555 circuits in a chip；The pin of chip the 1st Pass through diode D₅, resistance R₆Connect controllable silicon T₂Control pole, controllable silicon T₂Anode connects the pin of chip the 8th, controllable silicon T₂Negative electrode connects Meet 555 circuits 4,8 pin, chip the 2nd, 7 pin and R₇Upper end, controllable silicon T₂Control pole and negative electrode have also bridged electric capacity C₅, chip the 2nd Pin also connects the pin of 555 circuit the 4th simultaneously and the 8th pin, the 6th pin of 555 circuits and the 7th pin had both connected the pin of chip the 3rd further through electricity Hold C₆Connect the pin of chip the 4th, the pin of 555 circuit the 1st and triode V₁Emitter stage also connects the pin of chip the 4th, and the pin of 555 circuit the 5th passes through Electric capacity C₇Connect the pin of chip the 4th, the resistance R that the pin of 555 circuit the 2nd passes through parallel connection₈, electric capacity C₈The pin of chip the 4th, 555 circuits are connected afterwards 2nd pin also passes through resistance R₇The pin of chip the 7th is connected, the pin of chip the 7th is connected with 555 circuits the 4th, 8 pin and the pin of chip the 2nd, 555 electricity The pin of road the 3rd passes through resistance R₉Connecting triode V₄Base stage, triode V₄Colelctor electrode connects the pin of chip the 6th, and the pin of chip the 7th also passes through Resistance R₁₀The pin of chip the 5th is connected, the pin of chip the 8th and the 4th pin connect working power anode V respectively_DDWith working power negative terminal V_SS。

IC₅：The single phase ac that i.e. present invention develops protects chip, enterprise model DQ002, the blow-up against work(fault pretest The inverse work(fault pretest protection chip of stream, three full-wave rectifying circuits, a photoelectric coupling circuit and a control circuit are integrated In a chip, the inputs of three full-wave rectifying circuits connect respectively chip the 1st, 2,3 pin, three full-wave rectifying circuits Output end parallel connection after be connected to the input of photoelectric coupling circuit, the output end connection control circuit of photoelectric coupling circuit, control Circuit processed connection chip the 4th, 5,6,7,8 pin.

Three full-wave rectifying circuits are by diode D₆To D₁₁Form, photoelectric coupling circuit is by luminous tube FD₇With it is photosensitive Transistor V₅Form, control circuit is by resistance R₁₃To R₁₇, diode D₁₂To D₁₃, controllable silicon T₃With triode V₆Form, three complete Three inputs of ripple rectification circuit connect respectively chip the 1st, 2,3 pin, and the 1st of chip the, 2,3 pin connect load end respectively Live wire L ', zero line N ' and power end zero line N, be connected to photoelectric coupling circuit after the output end parallel connection of three full-wave rectifying circuits Input photoelectric tube FD₇Both positive and negative polarity, the photistor V of photoelectric coupling circuit₅Output end is connected on the controllable silicon of control circuit T₃Negative electrode and diode D₁₂Between anode, controllable silicon T₃Control pole is through resistance R₁₅It is connected to the pin of chip the 7th, controllable silicon T₃Anode connect To the pin of chip the 5th and through resistance R₁₆It is connected to triode V₆Base stage, triode V₆Colelctor electrode is through diode D₁₃With resistance R₁₇It is connected to core The pin of piece the 6th, the anode V of DC supply_DDIt is connected to the pin of chip the 8th, the negative terminal V of DC supply_SSIt is connected to the pin of chip the 4th.

IC₇：The fault signal processing circuit chip that i.e. present invention develops, enterprise model DQ004, fault-signal processing electricity Road chip, by resistance R₂₄To R₃₆, electric capacity C₉To C₁₃, diode D₁₄To D₂₃, controllable silicon T₄To T₆, four input nand gate U₆It is integrated in On one chip；Its pin of chips the 1st and the 2nd pin connect four input nand gate U respectively₆The 1st input and the 2nd input； The pin of chip the 3rd passes through resistance R₂₄, diode D₁₄Connect controllable silicon T₄Anode, the pin of chip the 4th pass through resistance R₂₅, diode D₁₅Even Meet controllable silicon T₅Anode, the pin of chip the 5th pass through diode D₁₆Connect controllable silicon T₄Control pole, the pin of chip the 6th pass through diode D₂₂、 Resistance R₃₅Connect controllable silicon T₅Control pole, the pin of chip the 8th connection controllable silicon T₅Control pole, the pin of chip the 9th connection controllable silicon T₆Control Pole, the pin of chip the 10th pass through resistance R₃₄、R₃₃Connect controllable silicon T₆Control pole, at the same time, the pin of chip the 10th pass through resistance R₃₄、 R₃₂、R₃₁Connect controllable silicon T₆Anode, the pin of chip the 11st connect four input nand gate U₆The pin of output end the 5th, the pin of chip the 13rd leads to Cross resistance R₃₁Connect controllable silicon T₆Anode, the pin of chip the 7th and the 14th pin connect working power negative terminal and anode, controllable silicon T respectively₄ Anode passes through diode D₁₈Connect four input nand gate U₆The 3rd input, controllable silicon T₅Anode passes through diode D₁₉Connection four Input nand gate U₆The 4th input, can control T₆Anode also passes through diode D₂₁, resistance R₂₉Connect controllable silicon T₅Control pole.

Specific circuit operation principle is as follows：

Fault-free automatic reclosing circuit：Its operation principle is：After the present invention connects main circuit power end, fault-free is automatic Reclosing circuit is started working, as the power end or load end of main circuit have overvoltage failure or under-voltage failure, or inverse work( Failure, or overload, short trouble, or leak current fault, IC₃1st input pin will be all changed into high level, IC from low level₃Triggering fortune OK, IC₃5th pin is changed into high level, flashing light alarm diode FD₁Energization flashing light alarm, the 7th pin are changed into high level, and buzzer Y leads to Electricity sends alarm, and the 6th pin is that low level (only keeps low level for a period of time, keeps low level time length to pass through adjustment Adjustable resistance W₁To determine), the first relay J₁Energization adhesive, J₁One group of contact J_1-1Conversion, its normally-closed contact disconnect, cut-out IC₄、IC₇, relay J₂、J₃、J₄Working power, IC₄6th pin has no chance to export high level, IC₈3rd pin, 1 pin, the 2nd pin, the 7th pin all keep original state constant, control the performer of main circuit and will not act, the power supply of main circuit End and load end continue to be locked in off-state.J_1-1Normally opened contact closes, by IC₃7th pin and the short circuit of the 8th pin, to touch next time Send out IC₃Operation is got ready.IC₃6th pin keeps low level to return to high level, relay J afterwards for a period of time₁Power-off release, J₁'s One group of contact J_1-1Conversion, J_1-1Normally-closed contact closure, connect IC₄With relay J₂、J₃、J₄Working power, open Begin to carry out fault pretest work to main circuit, failure does not exclude as existing for main circuit, and the present invention is above-mentioned by circulating repetition The course of work, after failture evacuation existing for main circuit, IC₄Normal program work could be pressed, works as IC₄Arrived by program work IC₄When 6th pin is changed into high level from low level, drive control IC circuit₈3rd pin is also changed into high level from low level, IC₈7th pin A positive pulse voltage, while IC are produced to the 2nd pin₈1st pin is also changed into high level, no matter the actuator of control main circuit break-make Part is that magnetic keeps relay, or electromagnetic relay or A.C. contactor, its normally opened contact all to close, by the power end of main circuit Connected with load end, IC₄After 6th pin returns to low level, IC₄5th pin is changed into high level, controllable silicon T from low level₁Conducting, second Relay J₂Energization adhesive, J₂Normally-closed contact J_2-1Disconnect, cut off IC₄With relay J₃、J₄Working power, with Ensure under the load termination energization source running situation of main circuit, the present invention, without preliminary examination, is only carried out online to main circuit Inspection.

Cross, under-voltage detection protection circuit：When the voltage rise at main circuit power end, the electricity at connection main circuit power end The VD of source circuit also and then raises, and crosses, Undervoltage detection circuit IC₆3rd pin voltage equally follows rise, in master When circuit power terminal voltage is increased to overvoltage working value, IC₆6th pin is changed into low level, overvoltage indicating fault from high level Lamp FD₃Electrified light emitting, IC₆7th pin is also changed into low level, fault signal processing circuit IC from high level₇1st pin is equally by high electricity Flat to be changed into low level, the output of the 11st pin is changed into high level from low level, and this high level makes drive control IC circuit all the way₈6th pin High level is changed into from low level, another way makes the IC in fault-free automatic reclosing circuit₃1st pin is changed into high electricity from low level It is flat, IC₈After 6th pin is changed into high level, IC₈There are a negative pulse voltage output, the 1st pin output voltage between 7th pin and the 2nd pin For 0, the performer of control main circuit break-make is set to continue the power end of main circuit and load end being locked in off-state, IC₃ After 1st pin is changed into high level, IC₃5th pin is changed into high level, light emitting diode FD₁Flashing light alarm, IC₃7th pin is changed into high level, Buzzer Y is powered and sends alarm, IC₃6th pin is changed into low level and kept for a period of time, during this period, relay J₁It is powered and inhales Close, J₁One group of contact J_1-1Transition status, J_1-1Normally-closed contact disconnect, cut off IC₄、IC₇, relay J₂、J₃、J₄ Working power, on end preliminary examination work, J_1-1Normally opened contact closure, get ready for fault-free automatic reclosing.Work as main circuit When power supply terminal voltage declines, the VD of power circuit also and then declines, IC₆2nd pin voltage equally and then declines, When main circuit power voltage drops to under-voltage working value, IC₆1st pin is changed into low level, under-voltage indicating fault from high level Lamp FD₂Electrified light emitting, IC₆7th pin is changed into low level from high level, IC₇11st pin is changed into high level from low level, this high level Make drive control IC circuit all the way₈6th pin is changed into high level from low level, and another way makes in fault-free automatic reclosing circuit IC₃1st pin is changed into high level from low level, IC₈After 6th pin is changed into high level, IC₈There is a negative arteries and veins between 7th pin and the 2nd pin Rush voltage output, the 1st pin output voltage is 0, make the performer of control main circuit break-make continue the power end of main circuit and Load end is locked in off-state, IC₃After 1st pin is changed into high level, IC₃5th pin is changed into high level, light emitting diode FD₁Flash of light Alarm, IC₃7th pin is changed into high level, and buzzer Y is powered and sends alarm, IC₃When 6th pin is changed into low level and is kept for one section Between, during this period, relay J₁Energization adhesive, J₁One group of contact J_1-1Transition status, J_1-1Normally-closed contact disconnect, cut-out collection Into IC circuit₄、IC₇, relay J₂、J₃、J₄Working power, on end preliminary examination work, J_1-1Normally opened contact closure, be fault-free Automatic reclosing is got ready.

Inverse work(preliminary examination circuit, after power circuit connects main circuit power end, IC₄Electrification reset starts work Make, in the case where main circuit power end is without mistake, under-voltage failure, IC₄10th pin is changed into high level and holding one from low level Section time, drive control IC circuit₈5th pin is also changed into high level from low level, IC₈One is produced between 7th pin and the 2nd pin to bear Pulse voltage, IC₈1st pin output voltage is 0, and the performer for controlling main circuit break-make under normal circumstances, works as main circuit power During the power-off of end, under-voltage protection function will cut off the power end of main circuit and load end, herein under normal circumstances, IC₈7th pin And the 2nd a negative pulse voltage and 0 voltage of the 1st pin are produced between pin can only continue main circuit to be locked in disconnection shape State, in order to prevent that load end and power end are not cut off when power is off at contingency main circuit power end, in the case of this contingency IC₈The load end of main circuit and power end will be cut off, it is ensured that during fault pretest, the load end and power end of main circuit It is off.With anti-reverse work(preliminary examination false alarm；IC₄10th pin exports high level and returns to low electricity after being kept for a period of time Flat, the output of the 9th pin is changed into high level from low level and kept for a period of time, and the retention time of this high level is exactly that main circuit is born Carry the time that end carries out inverse work(preliminary examination, inverse work(preliminary examination IC circuit₅When 7th pin is equally changed into high level from low level and is kept for one section Between, IC₅Triggering operation, as the live wire L ' of main circuit load end or zero line N ' misconnections have entered the live wire of other power supply-distribution systems, that Alternating voltage, IC are just had between L ' and N or between N ' and N₅6th will be changed into high level from low level, and inverse work(failure refers to Show lamp FD₄Energization brightens, IC₅5th pin is changed into low level, fault signal processing circuit IC from high level₇2nd pin is equally by high electricity Flat to be changed into low level, the 11st pin is changed into high level from low level, and this high level makes IC all the way₈6th pin is changed into high level, the 1st pin Output voltage is one negative pulse voltage of output between the 0, the 7th pin and the 2nd pin, makes the performer of control main circuit break-make motionless Make, the power end of main circuit and load end are continued to be locked in off-state；Another way makes IC₃1st pin is changed into high from low level Level, IC₃Triggering operation, FD₁Flashing light alarm, buzzer Y send alarm, J₁Energization adhesive, J₁One group of contact J_1-1Conversion State, its normally-closed contact disconnect, and terminate preliminary examination work, its normally opened contact closure, are got ready for fault-free automatic reclosing.

Overload, short circuit, electric-leakage detection circuit：Electric leakage preliminary examination protection operation principle be：The present invention connects main circuit power Behind end, as main circuit was not present, under-voltage failure, IC₄Will will be by program work, IC₄10th pin exports high level and kept Low level is returned to after a period of time, the 9th pin goes out high level and kept for a period of time, during this period, as main circuit load end is not deposited In inverse work(failure, the 9th pin returns to low level, and the 8th pin output high level simultaneously keeps a period of time, second triode V₂Conducting, 4th relay J₄Energization adhesive, J₄Normally opened contact J_4-1Closure, by the live wire L ' of load end, zero sequence current mutual inductor BL₁'s Primary coil BL_1-1Connected with power supply transformation B secondary coil, the safety low-pressure alternating current of B level output of transformer is by B level Upper end → J_4-1→R₁→BL_1-1The lower end of the level of → load end live wire L ' → the earth → main circuit power end zero line → B times, it is such as negative Carry end live wire L ' and grounding resistance, zero sequence current mutual inductance BL be present₁Primary BL_1-1Just have electric current by, and grounding resistance is smaller, Flow through BL_1-1Electric current it is bigger, zero sequence current mutual inductor BL₁Secondary BL_1-2Caused induced-current is also bigger, works as ground connection Resistance it is small to electric leakage working value when, fault signal processing circuit IC₇5th pin voltage will >=1V, IC₇3rd pin is changed into from high level Low level, leak current fault indicator lamp FD₆Electrified light emitting, IC₇11st pin is just changed into high level from low level, and this high level passes through all the way IC₈The performer of control main circuit break-make is set to continue the load end of main circuit and power end to be locked in disconnection shape after work State, another way is through IC₃Sound and light alarm signal is sent after work, while termination failure preliminary examination works, and is fault-free automatic reclosing Get ready, complete to carry out the leak current fault of load end preliminary examination protection task.The operation principle protected is examined in electric leakage online： After main circuit load end connects operation with power end, when leak current fault occurs such as load end, due to the live wire L ' and zero of load end Line N ' passes through zero sequence current mutual inductance BL₁, BL₁Secondary BL_1-2Caused induced-current will reach working value, fault-signal processing IC circuit₇5th pin will >=1V, IC₇3rd pin is changed into low level, leak current fault indicator lamp FD from high level₆Electrified light emitting, IC₇ 11st pin will be changed into high level from low level, and this high level is all the way through IC₈Move the performer of control main circuit after work Make, the load end of main circuit and power end are cut off, another way is through IC₃Sound and light alarm signal is sent after work, while for without reason Barrier automatic reclosing is got ready；Overload, the operation principle of short-circuit preliminary examination protection are：After the present invention connects main circuit power end, As main circuit was not present, under-voltage failure, IC₄Will be by program work, IC₄When 10th pin exports high level and is kept for one section Between after return to low level, the 9th pin goes out high level and is kept for a period of time, as inverse work(failure, the 9th pin is not present in main circuit load end Low level is returned to, the 8th pin output high level simultaneously keeps a period of time, leak current fault is not present as main circuit loads, the 8th pin returns to Low level, the 7th pin output high level simultaneously keep a period of time, first triode V₁Conducting, the 3rd relay J₃It is powered and inhales Close, J₃Two groups of normally opened contact J_3-1And J_3-2Closure, the live wire L ' accesses fault-signal of main circuit load end is handled into electric IC₇The 10 pin, by the negative terminal of the zero line N ' access dc sources of load end, meanwhile, the 3rd triode V₃Conducting, by IC₇13rd pin and Power positive end is connected, as main circuit load end has overload, short trouble, fault signal processing circuit IC₇10th pin will< 1V, electric current is by IC₇10 pin → J_3-1→ load end live wire L ' → load end zero line → J_3-2→ ground (DC supply negative terminal), Overload more serious, IC₇10th pin voltage is lower, when load end L ' and N ' are short-circuit.IC₇10th foot press is just 0, and adjustment is adjustable Electric W₄Resistance, it is possible to change load end overload, the working value of short trouble preliminary examination, work as IC₇During 10 pin≤1V, IC₇4th Pin is changed into low level, overload short circuit malfunction indicator lamp FD from high level₅Electrified light emitting, IC₇11st pin will be changed into high from low level Level, this high level is all the way through IC₈Make after work the performer of control main circuit break-make continue the load end of main circuit and Power end is locked in off-state, and another way is through IC₃Sound and light alarm signal is sent after work, while termination failure preliminary examination works, Got ready for fault-free automatic closing, complete to carry out main circuit load end overload, short trouble the task of preliminary examination protection.Cross Carry, the operation principle of the online inspection protection of short circuit：After the load end of main circuit connects operation with power end, such as main circuit load end When generation overload, short trouble, the current transformer BL on main circuit load end live wire L '₂Secondary BL_2-2Sensing Electric current will increase to overload, the working value of short trouble, fault signal processing circuit IC₇6th pin voltage will >=1V, adjustment Adjustable resistance W₅Resistance can change main circuit load end overload, the working value that short trouble is examined online, IC₇4th pin is by height Level is changed into low level, overload, short trouble indicator lamp FD₅Energization brightens, IC₇11st pin will be changed into high level from low level, This high level is all the way through IC₈Act the performer of control main circuit break-make after work, by the load end and power supply of main circuit End cut-out, another way is through IC₃Sound and light alarm signal is sent after work, while is got ready for fault-free automatic reclosing.

Fault signal processing circuit：Fault signal processing circuit IC₇1st pin, the 2nd pin, the 5th pin, the 6th pin and the 10th pin this Five signal input parts control the 11st pin output end simultaneously, and the 5th input pin also controls the 3rd output pin in addition, the 6th input pin or the 10 input pins also control 4 output pins.IC₇All it is high level only in the 1st pin and the 2nd pin, the 5th pin and the 6th pin are all<1V, the 10th Pin>During 1V, the 11st pin is just low level, when five signal input pins (1,2,5,6,10) any one pin signal change state, Low level, or 5 pin >=1V, or 6 pin >=1V are changed into from high level as the 1st pin is changed into low level or the 2nd pin from high level, or During 10 pin≤1V, the output pins of IC7 the 11st can be all changed into high level from low level, and as 5 signal input pins >=1V, the 3rd is defeated Low level can be changed into from high level by going out, when the 5th input pin<During 1V, the 3rd output pin is high level, as 6 input pins >=1V, Or during the 10th defeated≤1V, the 4th output pin can be changed into low level from high level.When the 6th pin<1V, or during the 10th pin ＞ 1V, the 4th pin For high level.IC₇8th pin is through adjustable resistance W₄Ground connection, adjust W₄Resistance overload when can change online inspection, short circuit current it is dynamic Make.IC₇9th pin is through adjustable resistance W₅Ground connection, adjust W₅Resistance, overload, the working value of short circuit current when can change preliminary examination.

Drive control circuit：When drive control IC circuit₈When 3rd input pin is changed into high level from low level, the 1st output pin Have high level output, this high level can drive electromagnetic relay or A.C. contactor, while the 7th output pin and the 2nd output pin it Between have the output of positive voltage, this positive voltage can drive magnetic latching relay conversion work state, work as IC₈6th input pin or the 5th When input pin is changed into high level from low level, the 1st output pin stops high level output, cuts off electromagnetic relay or A.C. contactor Working power, while have the output of negative voltage between the 7th output pin and the 2nd output pin, this negative voltage can drive magnetic to keep Relay conversion work state.

Claims

A kind of 1. AC single phase intelligent object, it is characterised in that：It is made up of box body, intelligent electric-controlled plate, transformer, epoxy resin, Box body 1 is believed built with power circuit, fault-free automatic reclosing circuit, failure is equipped with intelligent electric-controlled plate 2, intelligent electric-controlled plate 2 Number process circuit, overload, short circuit, electric-leakage detection circuit, inverse work(preliminary examination circuit, mistakes, Undervoltage detection circuit, drive control are electric Road, the live wire and zero line of external electrical source access intelligent electric-controlled plate 2 through plug-in unit 8 and its connecting line, the live wire at external loading end and Zero line accesses intelligent electric-controlled plate 2, the zero sequence current mutual inductor BL of load end through plug-in unit 7 and its connecting line₁Through plug-in unit 6 and its connection Line accesses intelligent electric-controlled plate 2, the current transformer BL of load end₂Intelligent electric-controlled plate 2, intelligence are accessed through plug-in unit 5 and its connecting line Control panel 2 exports the execution component through plug-in unit 4 and its connecting line Access Control externally fed main circuit, controlled external power supply master The live wire and zero line of circuit pass through current transformer also cross zero sequence current mutual inductor, live wire；Finally use epoxide-resin glue 3 will Box body 1 and the envelope of intelligent electric-controlled plate 2 are filled into a module, the top of Light-Emitting Diode and the sounding of buzzer on intelligent electric-controlled plate Protrude on the surface of epoxide-resin glue in face.
2. AC single phase intelligent object according to claim 1, it is characterised in that：The intelligent electric-controlled plate includes power supply electricity Road, fault-free automatic reclosing circuit, drive control circuit, fault signal processing circuit, overload, short circuit, electric-leakage detection circuit, Inverse work(preliminary examination circuit, mistake, Undervoltage detection circuit；Power circuit inputs the power end for being connected to externally fed main circuit, power supply Circuit output is connected to fault-free automatic reclosing circuit, drive control circuit, fault signal processing circuit, mistake, under-voltage inspection Slowdown monitoring circuit, inverse work(preliminary examination circuit, overload, short circuit, electric-leakage detection circuit；Overload, short circuit, the sampling of electric-leakage detection circuit are connected to The live wire and zero line of externally fed main circuit load end, the sampling of inverse work(preliminary examination circuit are connected to externally fed main circuit load end Live wire, zero line and the zero line at externally fed main circuit power end；Overload, short circuit, the output end of electric-leakage detection circuit, inverse work(are pre- The output end and mistake, the output end of Undervoltage detection circuit for examining circuit are all connected to fault signal processing circuit；Fault-signal processing The output end of circuit is respectively connected to fault-free automatic reclosing circuit and drive control circuit, fault-free automatic reclosing circuit Output is connected to drive control circuit, the output of drive control circuit be connected to control externally fed main circuit break-make perform member Device.
3. AC single phase intelligent object according to claim 1, it is characterised in that：Described fault-free automatic reclosing electricity Road includes resistance R₂, adjustable resistance W₁, controllable silicon T₁, IC₃、IC₄, relay J₁、J₂, light emitting diode FD₁And buzzing Device Y, IC₃1st pin is connected to fault signal processing circuit IC₇11st pin, IC₃An adjustable resistance is bridged between 2nd pin and the 3rd pin W₁, IC₃5th pin is through flashing light alarm diode FD₁Be connected to dc source negative terminal (), the first relay J₁It is connected across IC₃6th pin and Between 7th pin, the 7th pin is also connected to J simultaneously₁Normally opened contact J_1-1, IC₃8th pin is connected to J₁Center contact, IC₃4th pin connects Ground, IC₄10th pin is connected to IC in drive control circuit₈5th pin, IC₄9th pin is connected to IC in inverse work(preliminary examination circuit₅7th pin, IC₄The 8 pin and the 7th pin are respectively connected to R in overload, short circuit, electric-leakage detection circuit₃And R₄One end, R₃And R₄The other end be respectively connected to Triode V₁And V₂Base stage, triode V₁And V₂Colelctor electrode connect relay J respectively₃And J₄Coil, IC₄6th pin is connected to Drive control IC circuit₈3rd pin, IC₄5th pin is through resistance R₂It is connected to controllable silicon T₁Control pole, T₁Control the 2nd relay J₂It is logical It is disconnected, J₂One group of normally-closed contact J_2-1IC is controlled again₄Working power.
4. AC single phase intelligent object according to claim 1, it is characterised in that：Described fault signal processing circuit bag Include IC₇, leak current fault indicator lamp FD₆, overload, short trouble indicator lamp FD₅, adjustable resistance W₄、W₅, IC₇1st input Pin was connected to, Undervoltage detection circuit IC₆The 7th output pin, indicator lamp FD₆And FD₅Be connected across respectively working power anode with IC₇Between 3rd, the 4th pin, zero sequence current mutual inductor BL₁Secondary windings BL_1-2It is connected across IC₇5th input pin is born with working power Between end, current transformer BL₂Secondary windings BL_2-2It is connected across IC₇Between 6th input pin and working power negative terminal, adjustable electric Hinder W₅It is connected across IC₇Between 8th pin and working power negative terminal, adjustable resistance W₄It is connected across IC₇9th pin and working power negative terminal it Between, IC₇The 10th normally opened contact J of the input pin through the 3rd relay_3-1The live wire L ' of externally fed main circuit load end is connected to, IC₇11st output pin is connected to drive control IC circuit₈6th input pin, the 3rd triode V₃It is connected across IC₇13rd pin and power supply Between anode.
5. AC single phase intelligent object according to claim 1, it is characterised in that：Described mistake, Undervoltage detection circuit Including IC₆, under-voltage malfunction indicator lamp FD₂, overvoltage malfunction indicator lamp FD₃, adjustable resistance W₂、W₃, indicator lamp FD₂ It is connected across IC₆Between 1st pin and power positive end, FD₃It is connected across IC₆Between 6th pin and power positive end, adjustable resistance W₂、W₃Respectively It is connected across IC₆2nd, between the 3rd pin and power supply negative terminal.
6. AC single phase intelligent object according to claim 1, it is characterised in that：It is described overload, short circuit, detection of electrical leakage Circuit includes resistance R₁、R₃、R₄、R₅, triode V₁、V₂、V₃, relay J₃、J₄, zero sequence current mutual inductor BL₁Summation current transformer BL₂；J₃And J₄One end be attempted by power positive end, J₄The other end through triode V₂, resistance R₄It is connected to IC₄8th pin, J₃It is another End is through triode V₁, resistance R₃It is connected to IC₄7th pin, BL₁Armature winding BL_1-1An end be connected to externally fed main circuit load The live wire L ', BL at end_1-1The other end is through resistance R₁、J₄One group of normally opened contact J_4-1It is connected to power transformer B secondary output end Upper end, BL₁Secondary windings BL_1-2It is connected across IC₇Between 5th input pin and working power negative terminal, externally fed main circuit is born The live wire L ' and zero line N ' at end are carried also cross BL₁, BL₂Secondary BL_2-2It is connected across IC₇6th input pin and working power negative terminal Between, the live wire L ' of externally fed main circuit load end passes through BL₂, the 3rd relay J₃One group of normally opened contact J_3-1It is connected across IC₇Between 10th pin and externally fed main circuit load end live wire L ', J₃Another group of contact J_3-2It is connected across the main electricity of externally fed Between road load end zero line N ' and working power negative terminal.
7. AC single phase intelligent object according to claim 1, it is characterised in that：Described inverse work(preliminary examination circuit is by integrating IC circuit₅With inverse work(malfunction indicator lamp FD₄Form, IC₅1st and the 2nd two input pin is respectively connected to the load of externally fed main circuit The live wire L ' and zero line N ', IC at end₅3rd pin is connected to the zero line N at circuit power end, IC₅5th output pin is connected to fault-signal processing IC circuit₇2nd input pin, inverse work(malfunction indicator lamp FD₄It is connected across IC₅Between 6th pin and working power negative terminal, IC₅7th pin connects To fault-free automatic reclosing IC circuit₄9th pin.
8. AC single phase intelligent object according to claim 1, it is characterised in that：Described drive control circuit includes IC₈, IC₈3rd input pin is connected to fault-free automatic reclosing IC circuit₄6th output pin, IC₈5th, the 6th input pin is respectively connected to IC₄10th output pin and fault signal processing circuit IC₇11st output pin, IC₈It is outside that the output pin of 2nd, the 7th and the 1st is connected to control The execution component for main circuit break-make of powering.
9. AC single phase intelligent object according to claim 1, it is characterised in that：Described execution component is protected using magnetic Hold relay or magnetic relay or A.C. contactor.
10. AC single phase intelligent object according to claim 1, it is characterised in that：Described IC₃、IC₅、 IC₆、IC₇、IC₈The chip developed for the present invention, concrete structure are as follows：

IC₃：That is the automatic reclosing chip developed of the present invention, enterprise model DQ001, the automatic reclosing chip is by resistance R₆Extremely R₁₀, electric capacity C₅To C₈, diode D₅, triode V₄, controllable silicon T₂It is integrated in 555 circuits in a chip；The pin of chip the 1st leads to Cross diode D₅, resistance R₆Connect controllable silicon T₂Control pole, controllable silicon T₂Anode connects the pin of chip the 8th, controllable silicon T₂Negative electrode connects 555 circuits 4,8 pin, chip the 2nd, the 7th pin and R₂Upper end, controllable silicon T₂Control pole and negative electrode have also bridged electric capacity C₅, chip the 2nd Pin also connects the pin of 555 circuit the 4th simultaneously and the 8th pin, the 6th pin of 555 circuits and the 7th pin had both connected the pin of chip the 3rd further through electricity Hold C₆Connect the pin of chip the 4th, the pin of 555 circuit the 1st and triode V₁Emitter stage also connects the pin of chip the 4th, and the pin of 555 circuit the 5th passes through Electric capacity C₇Connect the pin of chip the 4th, the resistance R that the pin of 555 circuit the 2nd passes through parallel connection₈, electric capacity C₈The pin of chip the 4th, 555 circuits are connected afterwards 2nd pin also passes through resistance R₇The pin of chip the 7th is connected, the pin of chip the 7th is connected with 555 circuits the 4th, 8 pin and the pin of chip the 2nd, 555 electricity The pin of road the 3rd passes through resistance R₉Connecting triode V₄Base stage, triode V₄Colelctor electrode connects the pin of chip the 6th, and the pin of chip the 7th also passes through Resistance R₁₀The pin of chip the 5th is connected, the pin of chip the 8th and the 4th pin connect working power anode V respectively_DDWith working power negative terminal V_SS；

IC₅：The single phase ac that i.e. present invention develops is inverse against work(fault pretest protection chip, enterprise model DQ002, the single phase ac Work(fault pretest protects chip, and three full-wave rectifying circuits, a photoelectric coupling circuit and a control circuit are integrated in into one In individual chip, the inputs of three full-wave rectifying circuits connect respectively chip the 1st, 2,3 pin, three full-wave rectifying circuits it is defeated Go out end it is in parallel after be connected to the input of photoelectric coupling circuit, the output end connection control circuit of photoelectric coupling circuit, control electricity Road connection chip the 4th, 5,6,7,8 pin；Three full-wave rectifying circuits are by diode D₆To D₁₁Form, photoelectric coupling circuit By luminous tube FD₇With photistor V₅Form, control circuit is by resistance R₁₃To R₁₇, diode D₁₂To D₁₃, controllable silicon T₃With three Pole pipe V₆Form, three inputs of three full-wave rectifying circuits connect respectively chip the 1st, 2,3 pin, and the 1st of chip the, 2, 3 pin connect live wire L ', the zero line N ' and power end zero line N of load end respectively, after the output end parallel connection of three full-wave rectifying circuits It is connected to the input photoelectric tube FD of photoelectric coupling circuit₇Both positive and negative polarity, the photistor V of photoelectric coupling circuit₅Output end is connected In the controllable silicon T of control circuit₃Negative electrode and diode D₁₂Between anode, controllable silicon T₃Control pole is through resistance R₁₅It is connected to chip the 7th Pin, controllable silicon T₃Anode be connected to the pin of chip the 5th and through resistance R₁₆It is connected to triode V₆Base stage, transistor collector is through diode D₁₃With resistance R₁₇It is connected to the pin of chip the 6th, the anode V of DC supply_DDIt is connected to the pin of chip the 8th, the negative terminal of DC supply V_SSIt is connected to the pin of chip the 4th；

IC₆：Mistake, the under-voltage detection chip that i.e. the present invention develops, enterprise model DQ003, this is crossed, under-voltage detection chip, by electricity Hinder R₁₈To R₂₃, two voltage detector U₂、U₃, a NOT gate U₄, one and door U₅It is integrated in a chip；The voltage inspection Survey device U₂Input connects two-way：It is connected all the way with the pin of chip the 2nd, another way passes through resistance R₁₉It is connected with the pin of chip the 8th；Voltage Detector U₂Output end connects three tunnels：The first via and with door U₅One input is connected, and the second tunnel passes through resistance R₂₀With chip the 1st Pin is connected, and the 3rd tunnel passes through resistance R₂₁It is connected with the pin of chip the 8th；The voltage detector U₃Input connects two-way：All the way with The pin of chip the 3rd is connected, and another way passes through resistance R₁₈It is connected with the pin of chip the 8th；Voltage detector U₃Output end connects two-way：All the way and NOT gate U₄Input be connected, another way passes through resistance R₂₂It is connected with the pin of chip the 8th；Voltage detector U₂、U₃Power supply negative terminal it is equal It is connected with the pin of chip the 4th, NOT gate U₄Output end connect two-way：All the way and with door U₅Another input be connected, another way passes through Resistance R₂₃It is connected with the pin of chip the 6th；With door U₅Output end be connected with the pin of chip the 7th；

IC₇：The fault signal processing circuit chip that i.e. present invention develops, enterprise model DQ004, the fault signal processing circuit core Piece, by resistance R₂₄To R₃₆, electric capacity C₉To C₁₃, diode D₁₄To D₂₃, controllable silicon T₄To T₆, four input nand gate U₆It is integrated in one On chip；Its pin of chips the 1st and the 2nd pin connect four input nand gate U respectively₆The 1st input and the 2nd input；Chip 3rd pin passes through resistance R₂₄, diode D₁₄Connect controllable silicon T₄Anode, the pin of chip the 4th pass through resistance R₂₅, diode D₁₅Connection can Control silicon T₅Anode, the pin of chip the 5th pass through diode D₁₆Connect controllable silicon T₄Control pole, the pin of chip the 6th pass through diode D₂₂, resistance R₃₅Connect controllable silicon T₅Control pole, the pin of chip the 8th connection controllable silicon T₅Control pole, the pin of chip the 9th connection controllable silicon T₆Control pole, The pin of chip the 10th passes through resistance R₃₄、R₃₃Connect controllable silicon T₆Control pole, at the same time, the pin of chip the 10th pass through resistance R₃₄、R₃₂、 R₃₁Connect controllable silicon T₆Anode, the pin of chip the 11st connect four input nand gate U₆The pin of output end the 5th, the pin of chip the 13rd passes through electricity Hinder R₃₁Connect controllable silicon T₆Anode, the pin of chip the 7th and the 14th pin connect working power negative terminal and anode, controllable silicon T respectively₄Anode Pass through diode D₁₈Connect four input nand gate U₆The 3rd input, controllable silicon T₅Anode passes through diode D₁₉The input of connection four NAND gate U₆The 4th input, controllable silicon T₆Anode also passes through diode D₂₁, resistance R₂₉Connect controllable silicon T₅Control pole.

IC₈：The drive control circuit chip that i.e. present invention develops, enterprise model DQ005, the drive control circuit chip, by resistance R₃₇To R₄₂, diode D₂₄To D₂₈, voltage-regulator diode DW₁To DW₂, triode V₇To V₁₁, controllable silicon T₇It is integrated in a chip； Wherein triode V₇Colelctor electrode and triode V₉Colelctor electrode is connected, triode V₈Colelctor electrode and triode V₁₁Colelctor electrode is connected, three poles Pipe V₇Emitter stage and triode V₈Emitter stage connection chip the 8th pin working power anode V_DD, triode V₉Emitter stage and triode V₁₁Emitter stage connection chip the 4th pin working power negative terminal V_SS；Triode V₇、V₉Colelctor electrode connects the pin of chip the 2nd, another way all the way Pass through resistance R₄₀, voltage-regulator diode DW₂Connecting triode V₈Base stage；Triode V₈、V₁₁Colelctor electrode connects the pin of chip the 7th all the way, Another way passes through voltage-regulator diode DW₁, resistance R₃₉Connecting triode V₇Base stage；The pin of chip the 3rd passes through diode D all the way₂₆, resistance R₃₈Connecting triode V₉Base stage, another way pass through resistance R₃₇, diode D₂₅Connect controllable silicon T₇Control pole and triode V₁₀Current collection Pole, controllable silicon T₇Anode connects the pin of chip the 8th, controllable silicon T₇Negative electrode passes through diode D₂₄Connect the pin of chip the 1st, triode V₁₀Base Pole passes through resistance R₄₂, diode D₂₈Connect the pin of chip the 5th, triode V₁₁Base stage passes through resistance R₄₁, diode D₂₇Connect chip 6th pin, diode D₂₇、D₂₈Negative terminal be connected.