CN2496168Y - Electric intelligent switch - Google Patents

Electric intelligent switch Download PDF

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Publication number
CN2496168Y
CN2496168Y CN 01249083 CN01249083U CN2496168Y CN 2496168 Y CN2496168 Y CN 2496168Y CN 01249083 CN01249083 CN 01249083 CN 01249083 U CN01249083 U CN 01249083U CN 2496168 Y CN2496168 Y CN 2496168Y
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China
Prior art keywords
switch
meet
circuit
pin
led
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Expired - Fee Related
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CN 01249083
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Chinese (zh)
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赫文祥
郭少振
吴海鹰
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ELECTRONIC INFORMATION TECHNOLOGY RESEARCH AND DEVELOPING CENTER ANSHAN CITY
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ELECTRONIC INFORMATION TECHNOLOGY RESEARCH AND DEVELOPING CENTER ANSHAN CITY
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Priority to CN 01249083 priority Critical patent/CN2496168Y/en
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Publication of CN2496168Y publication Critical patent/CN2496168Y/en
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Abstract

The utility model relates to an electric intelligent switch which comprises a casing, a main power switch and a plurality of sub switches, wherein the sub switches are in entire convolution, and the sub switches carry out incoming line in a one group mode and carry out outgoing line in a grouping mode. The main power switch has protection functions for overvoltage and total over-current, and the sub switches have protection functions for over-current and electricity touch and leakage prevention. The circuit part comprises a power supply, an overvoltage protection circuit, an over-current protection circuit, an electricity touch and leakage protection circuit, a fault memorizing indicating circuit and an execution circuit. The circuit leads in from the low-voltage. Overvoltage has two-stage protection, over-current has three-stage protection, and electricity touch and leakage has one-stage protection. Thus, the safety and the reliability of electricity utilization are guaranteed sufficiently. Household appliances and electricity utilization appliances and equipment are protected against damage effectively.

Description

The electronic intelligence switch
The utility model relates to a kind of switch, particularly relates to a kind of have overvoltage, overcurrent, earth leakage protective; The user adopts one group of master switch, and switch-dividing adopts integral combined electronic intelligence switch.
Along with the continuous enhancing of china's overall national strength, the improving constantly of living standards of the people, the dwelling construction of urban and rural residents progressively develops to comfortable, spacious, diversification direction.Meanwhile, high-power high-grade home electrics such as large-screen color TV, air-conditioning, electric heater, microwave oven progressively enter family; Enterprises and institutions also constantly increase as modern handle official bussiness facilities such as computer, photocopier, facsimile machines for establishing the modern enterprise image.These high-grade power consumption equipments how can be safe and reliable operation, just must mention agenda.This just requires, and stable performance, protection are reliable, the electic protection switch of disjunction power supply that goes wrong at once enters family in the lump and enterprises and institutions are supporting with it.
At present the switch protector that generally uses is air switch, leakage switch mostly, and air switch is in use generally acknowledged following several respects problem:
1, air switch is to adopt the bimetal leaf structure, utilizes flow of metal to realize the circuit disjunction, facts have proved bad, the unstable properties of repeatability.
2, ambient temperature is very big to the influence of bimetal leaf, by the protection value incompatibility winter of adjusting summer, by the protection value incompatibility summer of adjusting winter.
3, release three metal chips abroad again, reach more than three times rated current at load current and realize that disjunction is also reliable, but realize below three times that break-time is very long, and cost an arm and a leg, be not suitable for widespread usage.
Disjunction live wire when 4, air switch is to the circuit disjunction if electric power incoming line zero live wire connects instead, can bring potential safety hazard to the user.
The purpose of this utility model provides and a kind ofly has overvoltage, overcurrent, creepage protection function, and the electronic intelligence switch of not influenced by ambient temperature, good reproducibility, stable performance.
The electronic intelligence switch comprises housing, total power switch and a plurality of switch-dividing, and a plurality of switch-dividings are integral combined switch, one group of inlet wire, and the grouping outlet, promptly power supply adopts one group of master switch to the family, and the multicomponent switch comprises switch-dividing I and a plurality of switch-dividing II.Total power switch has overvoltage, total overcurrent protection function, and each switch-dividing has overcurrent, the anti-creepage protection function that touches.Housing is made up of upper shell, lower house, is respectively equipped with general supply chamber and a plurality of switch-dividings chamber in lower house.Upper and lower casing fastens, and is bolted to connection together.From the low pressure house lead in, overvoltage has two-stage protection, and overcurrent has three-level protective, touch electric leakage has first class of protection, has fully guaranteed the fail safe and the reliability of electricity consumption.Circuit partly comprises power supply, overvoltage crowbar, current foldback circuit, touches leakage protection circuit, fault memory indicating circuit and actuator, and actuator comprises the dropout switch.The required DC power supply of electronic intelligence switch adopts C 1Capacitance decompression, by diode D 1-D 3The half-wave rectifying circuit that constitutes is after the rectification, again through capacitor C 2Filtering is through resistance R 1For the display part provides power supply V CC1, through R 2Step-down, capacitor C 3Filtering is after the voltage-stabiliser tube DW voltage stabilizing, for integrated circuit operational amplifier IC provides power supply V CC2(see figure 4).Overvoltage crowbar comprises potentiometer RW, diode D 1, D 2, resistance R 1, capacitor C 1RW is transferred to set point, when supply voltage is higher than a certain value, and DW conducting D 1, D 2Positive pulse output is arranged, and one the tunnel triggers the controllable silicon of actuator, makes it conducting, and the dropout switch is cut off the electricity supply, and another road is triggered the fault memory and shown, makes lumination of light emitting diode warning (see figure 5).Overcurrent, short-circuit protection circuit (see figure 6) comprise current sensor CGQ, operational amplifier IC 1, IC 2, diode D 1-D 3, resistance R 1-R 5Export by current sensor CGQ with potentiometer RW current signal, through IC 1, IC 2Amplify, when regulating RW, when making electric current reach protection point electric current, IC 2Output signal is arranged, through D 1, D 2The output positive pulse, the one tunnel triggers actuator, and the silicon controlled trigger electrode of the switch coil of promptly threading off series connection is realized power down protection, and another road is triggered the fault memory and is shown, makes lumination of light emitting diode.Touch the leakage protection circuit (see figure 7) and comprise controllable silicon T, electric leakage coil L, resistance R 1, R 2, capacitor C 1, diode D 1, D 2The electric leakage coil adopt two-wire and around, when the electric shock phenomenon took place, secondary coil was through D 1, D 2Positive pulse output is arranged, and one the tunnel triggers the trigger electrode of the controllable silicon T of actuator, and the T conducting reaches power down protection, and fault memory display part, lumination of light emitting diode are triggered in another road.The faulty indication memory circuit is a LED 1, be serially connected in controllable silicon T 1(see figure 8) in the circuit.When fault-signal is imported, controllable silicon T 1Conducting, LED 1Luminous.Because of controllable silicon is operated in the forward bias voltage; therefore, in case the controllable silicon conducting, even triggering signal disappears; controllable silicon still is in conducting state; be that light-emitting diode is lighted all the time, record trouble phenomenon, the power down protection that causes as overcurrent; overcurrent memory diode is lighted; after fault is got rid of, when powering again, should press reset button K earlier 1, light-emitting diode extinguishes, and then closes a floodgate and send.
Current sensor, dropout switch, reset switch, power supply, overvoltage, overcurrent indicator light etc. are installed on the housing in the electric elements of the overvoltage protection of total power switch, total current foldback circuit; all the other electric elements are installed on the circuit board, and it is indoor that circuit board is arranged on general supply.The overcurrent of each switch-dividing, anti-current sensor in the leakage circuit, dropout switch, the indicator light etc. of touching are installed in respectively on the housing of each switch-dividing, all the other electric elements then are separately positioned on the circuit board of each switch-dividing, and it is indoor that each switch-dividing circuit board is separately fixed at corresponding with it switch-dividing.
The utlity model has following advantage:
1, the utility model electronic intelligence switch adopts practical AC current sensor, is equipped with ripe electronic technology, therefore the overcurrent characteristic that on performance, is better than domestic and international any air switch, and it is not influenced by ambient temperature, good reproducibility, stable performance.
2, this electronic intelligence switch has increased over-voltage protection function.Protection point when neutral line open circuit, contact badly over the ground, and causes the neutral point potential shift accurately and reliably, causes a certain phase voltage to increase and other contingency when causing the high pressure house lead in, can protect household electrical appliance and electricity consumption instrument, equipment effectively.
3, the utility model electronic intelligence switch is when realize dividing deenergizing, and zero live wire disjunction has simultaneously improved the fail safe of electricity consumption.
4, has the fault memory function, when occurring touching electric leakage, overvoltage, overcurrent, short trouble, corresponding indicator light is lighted, and fault is not got rid of, indicator light does not go out, and send not power on, fully guaranteed the safety of electrical appliance so on the one hand, fix a breakdown to the user on the other hand convenience is provided.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 be respectively the adoptable power supply of the utility model, overvoltage, overcurrent and short circuit, touch electric leakage, faulty indication and memory circuit schematic diagram.Fig. 6 is the structural representation of a kind of embodiment of the present utility model.Fig. 7, Fig. 8, Fig. 9, be total power switch circuit theory diagrams, switch-dividing circuit theory diagrams, air-conditioning switch-dividing circuit theory diagrams respectively.The utility model is described in further detail below in conjunction with accompanying drawing.
The electronic intelligence switch comprises housing, total power switch 3, a plurality of switch-dividing II and a switch-dividing I of being connected and composed by upper shell 1, lower house 2.A plurality of switch-dividing II comprise light switch 5, kitchen switch 6, switch on wall 7.Total power switch 3, a plurality of switch-dividing II and switch-dividing I are integral combined switch, one group of inlet wire 8, grouping outlet 9.Total power switch circuit (see figure 7) comprises overvoltage crowbar, total current foldback circuit, executive circuit and faulty indication, memory circuit and master switch K.Overvoltage crowbar comprises resistance R 1, R 2, voltage-stabiliser tube DW, diode D 1, D 2Total current foldback circuit comprises operational amplifier IC 1, IC 2, potentiometer RW, current sensor CGQ, diode D 3, D 4, resistance R 6-R 10Faulty indication, memory circuit comprise controllable silicon T 1, T 2, LED 1, LED 2, capacitor C 2, C 3, resistance R 3, R 4, R 5, controllable silicon T 1, T 2Be 169.Executive circuit comprises dropout switch L, resistance R 13, R 11, controllable silicon T 3, capacitor C 5Resistance R 1, R 2After the series connection, R 1Connect power firestreak, R 2Connect 0 line, voltage-stabiliser tube DW one termination R 1With R 2The P point of line, the other end is through D 1Meet T 1Trigger electrode, through D 2Meet T 3Trigger electrode, through C 1Ground connection.R in faulty indication, the memory circuit 3, LED 1, T 1After the series connection, R 3Meet reset switch AN, T 1Ground connection, C 2, R 4A termination T 1Trigger electrode, other end ground connection, R 3, LED 2, T 2Series connection, T 2Trigger electrode meets D 5In total current foldback circuit, current sensor CGQ meets RW, other end ground connection.IC 12 pin through adjustable side, the resistance R of potentiometer RW 6Meet IC 11 pin, IC 11 pin through D 3, R 7, D 4Meet IC 26 pin.C 4, R 9A termination D 4, other end ground connection.IC 18 pin meet DC power supply V CCIC 26 pin through R 8Meet DC power supply V CC, IC 25 pin through R 9Ground connection.IC 27 pin through D 6Meet T 3Trigger electrode.L and R 13Back in parallel one termination live wire, another termination T 3, T 3Ground connection, T 3Trigger electrode meet D 6, meet D simultaneously 2After master switch K closed a floodgate, electric current was through R 12, D 7Make LED 3Bright.
Its operation principle is:
The overvoltage signal is by R 1, R 2Dividing potential drop obtains, and (248 ± 2%) DW conducting is through D when supply voltage surpasses permissible value 1, D 2Trigger T respectively 1(169-1), T 3(169-3), dropout switch L action, whole power supplys, LED are cut off in master switch K disjunction 1Light, the memory of overvoltage fault shows.
Total current circuit of crossing is by operational amplifier IC 1, IC 2And the related elements composition, CGQ is an AC current sensor, RW adjusts potentiometer for setting electric current, when surpassing set point by electric current, through IC 1, IC 2Two-stage is amplified output signal through D 5, D 6Trigger T respectively 2(169-1), T 3(169-3) dropout switch L disjunction, LED 2Bright, reach the purpose that the memory of overcurrent protection and fault shows.
Total current sensor, dropout switch, light-emitting diode of crossing in the current circuit is installed in the position of setting on the housing, and all the other electronic devices and components are installed on the circuit board 10 of total power switch, and circuit board 10 is fixed in the total power switch chamber 11 in the lower house 2.
Switch-dividing I is an air-conditioning switch 4, and switch-dividing I comprises air-conditioning master switch K 1, DC power supply circuit, power connection indicating circuit, current foldback circuit, faulty indication, memory circuit and executive circuit.DC power supply circuit comprises capacitor C 1, C 2, diode D 1-D 3, resistance R 1, R 3With by capacitor C 7The voltage stabilizing circuit that composes in parallel with voltage-stabiliser tube DW.C 1One termination AC power live wire, another termination D 1Anodal, D 2Negative pole.D 1, D 3Negative pole meet R 1And R 3, D 3Positive pole connect 0 line of AC power.C 2One termination D 1, D 3Output be negative pole, other end ground connection.C 1Be decompression capacitor, D 1-D 3Form half-wave rectifying circuit, direct current V is provided eAnd V CCCurrent foldback circuit comprises operational amplifier IC 1, IC 2, potentiometer RW, current sensor CGQ, diode D 4, D 5, resistance R 4-R 8IC 18 pin meet R 3, 2 pin connect the adjustable side of potentiometer RW, potentiometer RW one termination CGQ, and the other end is through R 4Meet IC 11 pin.IC 13,4 pin ground connection, 1 pin is through D 4, R 5, D 5Meet IC 26 pin.The termination RW of CGQ, other end ground connection.IC 26 pin through R 6Meet V CC, through R 8Ground connection.IC 25 pin through R 7Ground connection meets D simultaneously 5IC 27 pin through D 6Meet T 1Trigger electrode, through D 7Meet T 2Trigger electrode, executive circuit comprises dropout switch L, resistance R 11, R 9, controllable silicon T 2, capacitor C 6R 11After L is in parallel, a termination AC power live wire, the other end and T 2Series connection, C 6, R 9A termination T 2Trigger electrode, other end ground connection.Faulty indication, memory circuit comprise LED 1, controllable silicon T 1, capacitor C 3, resistance R 2, reset switch AN.LED 1, T 1, after the AN series connection, LED 1Meet R 1, AN ground connection.C 3, R 2A termination T 1Trigger electrode, other end ground connection.Power turn-on circuit comprises R 10, D 8, LED 2R 10, D 8, LED 2After the series connection, R 10Connect alternating current fire wire, LED 2Negative pole connect 0 line.T 1Be controllable silicon 169-1, T 2Be controllable silicon 169-2.
Reset switch AN, LED in the foregoing circuit 1, LED 2, dropout switch L, current sensor CGQ be installed in the desired location of housing.All the other electronic devices and components are installed on the circuit board 12, and this circuit board 12 is fixed in the switch-dividing chamber 13 in the lower house 2.The operation principle of this circuit is that the 220V AC power is through C 1Step-down, D 1-D 3Rectification, C 2Filtering is for fault shows, memory circuit provides DC power supply V e, through DW, C 7Provide D.C. regulated power supply V for operational amplifier behind the filtering voltage regulation CCOvercurrent protection, fault show, the memory circuit operation principle is identical with total power switch.Electric light, kitchen, each switch-dividing II of wall are separately positioned in a plurality of switch-dividings chamber 15, and control circuit is identical, includes current foldback circuit, leakage protection circuit, fault demonstration, memory circuit, executive circuit, AC power working indicating.Wherein current foldback circuit, fault demonstration, memory circuit, executive circuit, AC power working indicating are identical with current foldback circuit, fault demonstration, memory circuit, executive circuit in the air-conditioning switch circuit, so no longer chat.Leakage protection circuit comprises electricity leakage sensor XQ, capacitor C 5, diode D 5, D 6XQ is serially connected in the output loop, the electric leakage coil adopt two-wire and around.Shunt capacitance C on the secondary coil of XQ 5, an end ground connection of secondary coil, the other end is respectively through D 5, D 6Meet T 3, T 2Trigger electrode.When touch, the XQ secondary coil has voltage output when leaking electricity, through D 5, D 6Trigger T respectively 3(169-3), T 2(169-2), the disjunction of dropout switch, LED 2Light, reach the purpose that the memory of protection and fault shows.
Dropout switch, current sensor, light-emitting diode, switch-dividing K that electric light, kitchen, each switch-dividing circuit of wall are comprised 1, reset switch AN is installed in the housing desired location, all the other electronic devices and components are installed in respectively on each switch-dividing circuit board 14, the circuit board 14 of each switch-dividing is separately fixed in each switch-dividing chamber 15.

Claims (1)

1, electronic intelligence switch comprises housing, total power switch (3), switch-dividing (I) and a plurality of switch-dividing (II), it is characterized in that;
A, described total power switch (3), switch-dividing (I) and a plurality of switch-dividing (II) are installed in respectively in total power switch chamber (11), switch-dividing chamber (13) and a plurality of switch-dividings chamber (15) of housing, one group of inlet wire (8), a plurality of grouping outlet (9); Total power switch (3) is by the control of total power switch circuit, and the total power switch circuit comprises overvoltage crowbar, total current foldback circuit, executive circuit and faulty indication, memory circuit; Overvoltage crowbar comprises resistance R 1, R 2, voltage-stabiliser tube DW, diode D 1, D 2, R 1With R 2After the series connection, R 1The line of starting to exchange fire, R 2Connect 0 line, DW one termination R 1With R 2P point on the line, an other termination D 1, D 2Faulty indication, memory circuit comprise controllable silicon T 1, T 2, LED 1, LED 2, LED 1With T 1After the series connection, LED 1Through resistance R 3Meet reset switch AN, T 1Ground connection, T 1Trigger electrode meet D 1LED 2With T 2After the series connection, LED 2Through resistance R 3Meet reset switch AN, T 2Ground connection; Total current foldback circuit comprises operational amplifier IC 1, IC 2, current sensor CGQ, IC 1(8) pin meet V CC, (1) pin is through diode D 3, resistance R 7, diode D 4Meet IC 2(6) pin, the termination RW of CGQ, other end ground connection, RW is through resistance R 6Meet IC 1(1) pin, IC 1(2) pin connect the adjustable side of RW, IC 2(6) pin through R 8Meet V CC, IC 2(7) pin through diode D 5Meet T 2Trigger electrode is through D 6Meet T 3Trigger electrode; Executive circuit comprises dropout switch L, controllable silicon T 3, L and resistance R 13After the parallel connection, a termination live wire, another termination T 3, T 3Ground connection, T 3Trigger electrode meet D 6, meet D simultaneously 2
B, described switch-dividing (I) are arranged in the switch-dividing chamber (13), and switch-dividing (I) is by switching circuit control, and switching circuit comprises DC power supply circuit, current foldback circuit, faulty indication, memory circuit and executive circuit; DC power supply circuit comprises capacitor C 1, C 2, diode D 1-D 3, resistance R 1, R 3With by capacitor C 7The voltage stabilizing circuit that composes in parallel with voltage-stabiliser tube DW; C 1One termination AC power live wire, another termination D 1Anodal, D 2Negative pole, D 1, D 3Negative pole meet R 1And R 3, D 3Positive pole connect 0 line of AC power; C 2One termination D 1, D 3Output be negative pole, other end ground connection; Current foldback circuit comprises operational amplifier IC 1, IC 2, potentiometer RW, current sensor CGQ, diode D 4, D 5, resistance R 4-R 8IC 1(8) pin meet R 3, (2) pin connects the adjustable side of potentiometer RW, potentiometer DW one termination CGQ, and the other end is through R 4Meet IC 1(1) pin; IC 1(3), (4) pin ground connection, (1) pin is through D 4, R 5, D 5Meet IC 2(6) pin; The termination RW of CGQ, other end ground connection; IC 2(6) pin through R 6Meet R 3, through R 8Ground connection; IC 2(5) pin through R 7Ground connection meets D simultaneously 5IC 2(7) pin through D 6Meet T 1Trigger electrode, through D 7Meet T 2Trigger electrode, executive circuit comprises dropout switch L, resistance R 11, R 9, controllable silicon T 2, capacitor C 6R 11After L is in parallel, a termination AC power live wire, the other end and T 2Series connection, faulty indication, memory circuit comprise LED 1, controllable silicon T 1, reset switch AN; LED 1, T 1, after the AN series connection, LED 1Meet R 1, AN ground connection; T 1Trigger electrode meet D 6;
Each switch-dividing of C, described a plurality of switch-dividings (II) is controlled by a switch-dividing control circuit, and the switch-dividing control circuit comprises current foldback circuit, leakage protection circuit, fault demonstration, memory circuit, executive circuit; Fault shows, memory circuit comprises LED 1, LED 2, controllable silicon T 1, T 2, LED 1With T 1After the series connection, LED 1Connecting resistance R 1, T 1Ground connection, LED 2With T 2After the series connection, LED 2Connecting resistance R 1, T 2Ground connection; Current foldback circuit comprises operational amplifier IC 1, IC 2, current sensor CGQ, IC 1(8) pin meet V CC, IC 1(1) pin through diode D 1, resistance R 5, diode D 2Meet IC 2(6) pin, the termination potentiometer RW of CGQ, other end ground connection, IC 2(7) pin through diode D 3Meet T 1Trigger electrode is through diode D 4Meet T 3Trigger electrode; Executive circuit comprises throwing off and closes (L), resistance R 11, R 9, R 11With a termination live wire after L is in parallel, another termination T 3, T 3Ground connection, leakage protection circuit comprises electricity leakage sensor XQ, capacitor C 5, diode D 5, D 6, XQ is serially connected in the output loop, and the electric leakage coil adopts two-wire and around, shunt capacitance C on the secondary coil of XQ 5, an end ground connection of secondary coil, the other end is respectively through D 5, D 6Meet T 3, T 2Trigger electrode.
CN 01249083 2001-08-13 2001-08-13 Electric intelligent switch Expired - Fee Related CN2496168Y (en)

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Application Number Priority Date Filing Date Title
CN 01249083 CN2496168Y (en) 2001-08-13 2001-08-13 Electric intelligent switch

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Application Number Priority Date Filing Date Title
CN 01249083 CN2496168Y (en) 2001-08-13 2001-08-13 Electric intelligent switch

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CN2496168Y true CN2496168Y (en) 2002-06-19

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CN 01249083 Expired - Fee Related CN2496168Y (en) 2001-08-13 2001-08-13 Electric intelligent switch

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218619A (en) * 2014-09-15 2014-12-17 深圳市福瑞康电子有限公司 Intelligent power supply device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218619A (en) * 2014-09-15 2014-12-17 深圳市福瑞康电子有限公司 Intelligent power supply device

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