CN2195152Y - Municipal electricity uniform distributor - Google Patents

Abstract

The utility model relates to a municipal electricity uniform distributor. The utility model has the circuit structure that an electric band switch circuit, an overload protection circuit and a switch that are composed of a plurality of controllable silicon connected in series in turn between a meter and an electrical light. A clock pulse circuit outputs clock pulse to a counter to make the counter output binary numbers to a decoder. After the binary numbers are decoded by the decoder, the output terminal of the decoder scans and outputs positive pulse. The controllable silicon trigger electrodes in the electric band switch circuit receive the output of the decoder; thus, the controllable silicon is conducted in turn and cycle under the control of scanning signals. The utility model can uniformly distribute the municipal electricity to each user's meter without electric energy consumption in normal times.

Description

Municipal electricity uniform distributor

A kind of public electric weight divider relates to the automatic interrupter of being made up of a plurality of controllable silicons.

Along with social progress, the raising of the people's material and cultural life level, the use of household electrical appliance increases sharply, and the supply power mode of former residential building has not adapted to the power reguirements of modern household electrical equipment.For this reason, table one a family system supply power mode is successively adopted in the many cities of China, and the problem of power supply quality difference is subjected to users' welcome when fundamentally having solved residential electric power peak for many years.But anything always is divided into two, owing to concentrate the total gauge table before having cancelled in the table case, and adopts table one a family system metering method, so the problem that the public electricity of appearance (as stair light) can't meterage.So that cause and newly make dwelling house and do not have stair light, unnecessary phenomenon such as garage lights brings many inconvenience for the resident at the moving to a better place new home.

The purpose of this utility model is to provide a kind of public electric weight divider, and it can be with commons electric weight mean allocation in each user's gauge table, thereby solves the problem that public electricity can't meterage, and not consuming electric power at ordinary times.

The purpose of this utility model is achieved in that and is serially connected with electronics wave band switching circuit, overload protecting circuit, the switch that is made of a plurality of controllable silicons successively between gauge table and electric light; Clock-pulse circuit and counter input are joined, and decoder input and counter output are joined, and the controllable silicon trigger electrode joins in decoder output and the described electronics wave band switching circuit; NAND gate circuit output connects the reset terminal of counter, decoder, is connected to differential circuit between NAND gate circuit input and last output line of decoder, and overload protecting circuit output is joined with another input of described NAND gate circuit.

Therefore the utility model can all be assigned to the electric weight of public electricity-using automatically in each user's gauge table, thereby effectively solve the public electricity-using measurement problem owing to adopt the electronics wave band switching circuit that is made of controllable silicon.Simultaneously since all circuit be serially connected between gauge table and the electric light so electric light not power consumption, effectively saves energy when not opening.

The physical circuit of utility model is provided by following embodiment and accompanying drawing thereof.

The public electric weight divider circuit block diagram that Fig. 1 the utility model proposes for foundation.

One of public electric weight divider circuit structure diagram below 16 tunnel that Fig. 2 the utility model proposes for foundation.

Fig. 3 is according to two of the public electric weight divider circuit structure diagram below 16 tunnel that the utility model proposes.

Fig. 2 constitutes the public electric weight divider complete circuit figure below 16 tunnel that foundation the utility model proposes with combining of Fig. 3.

The public electric weight divider circuit structure diagram below 32 tunnel that Fig. 4 the utility model proposes for foundation.

Below in conjunction with details and the working condition of accompanying drawing detailed description according to the public electric weight divider circuit that the utility model proposes.

Referring to Fig. 1, supply line at first connects gauge table, connects the electronics wave band switching circuit of being made up of a plurality of controllable silicons behind gauge table again, is connected to overload protecting circuit and switch between described electronics wave band switching circuit and electric light.And clock-pulse circuit connects counter input so that provide clock pulse for counter.Counter output connects the decoder input, and each output of decoder connects the controllable silicon trigger electrode in the described electronics wave band switching circuit respectively.The binary number that counter produces makes decoder output export high level successively and controls the conducting successively of different controllable silicons after decoder for decoding.The output termination counter of NAND gate circuit and the reset terminal of decoder, overload protecting circuit output connects an input of NAND gate circuit.Between another input of NAND gate circuit and last output line of decoder, be connected to differential circuit.When the high level of last output line output of decoder was in trailing edge, negative pulse of differential circuit output made NAND gate circuit export a positive pulse, thereby causes counter, decoder to reset, and makes it and the count decoding that starts anew.When load was transshipped, the output of overload protecting circuit made NAND gate circuit output high level, counting, the equal zero setting of decoding circuit, and decoding circuit is output as zero.This moment, controllable silicon ended, and incandescent lamp does not work, thereby plays a protective role.Because decoder is done scanning output, so the of short duration successively conducting of each controllable silicon, just of short duration successively each gauge table of connection so moves in circles, thus with electric light (load) power consumption mean allocation to each gauge table.

The public electric weight divider detailed circuit structure below 16 tunnel that foundation the utility model proposes is referring to Fig. 2, Fig. 3.By not gate 1,2, R ₂, R ₃, C ₂Form two-stage inverter and RC oscillator and constitute clock-pulse circuit thus.T=2.2R clock cycle of clock-pulse circuit output ₃C ₂Counter adds counter 4520 by tetrad and constitutes, and its input CL connects clock-pulse circuit output.Whenever 16 clock pulse of input, counter is got back to " 0 " and is carried out cycle count.The tetrad of counter output is delivered to the data receiver of decoder and is deciphered.Simultaneously at decoder output S ₀～S ₁₅Export high level successively.Decoder latchs 4-16 line decoder 4514 by four and constitutes.

NAND gate 3,4 is formed the rest-set flip-flop that low level triggers, and same R ₄, R ₅, R ₆, R ₈, R ₉, C ₃, AN, BG, NAND gate 5 form overload protecting circuits.Provide the triode of triggering signal to be connected on rest-set flip-flop input and sample resistance R ₈Between.When power supply rigidly connects when logical, because capacitor C ₃On voltage can not suddenly change, so rest-set flip-flop is output as " 1 ", after after a while, C ₃On voltage be charged to+9V.But rest-set flip-flop is a low level to be triggered, so the still stable one state that is in of rest-set flip-flop.NAND gate 5 outputs " 0 ", IC ₁, IC ₂Be in counting, decoding state.During operate as normal, load current is at sample resistance R ₈On the pressure drop deficiency that produced so that triode BG is saturated, rest-set flip-flop can not overturn, the circuit operate as normal.When load was transshipped, electric current increased, R ₈On pressure drop make BG saturated, rest-set flip-flop upset, output level "0".This level makes NAND gate 5 output level"1"s after NAND gate 5.Therefore make IC ₁, IC ₂All by reset, counting, decoding output all are " 0 ", and this state is keeping always, clicks sensitive switch AN after fault is excluded, and could recover operate as normal.

NAND gate 5, R ₇, C ₄Form monostable circuit.Rest-set flip-flop output 4 pin connect input 8 pin of NAND gate 5, at another input 9 pin and IC of NAND gate 5 ₂Be connected to by R between last output ₇, C ₄The differential circuit that constitutes.Work as IC ₂Output S ₁₁When being in the high level trailing edge, differential circuit is exported a negative pulse, thereby makes NAND gate 5 export an of short duration positive pulse, forces " " IC ₁, IC ₂Restore simultaneously.Treat after the pulse IC ₁, IC ₂Begin counting, decoding from " 0 " again.

Each gauge table current output terminal all is connected to diode, and the negative pole of each diode connects together and be superimposed upon voltage-stabiliser tube D after current limliting ₁Last generation+9V voltage is made CMOS integrated package working power, capacitor C ₁Be power filtering capacitor.12 kilowatt-hour meters are arranged in the present embodiment, and each kilowatt-hour meter output is connected to diode D successively ₂～D ₁₃

Unidirectional controllable silicon S CR ₁～SCR ₁₂Anode is connected on each current watt-hour meter leading-out terminal respectively, and all negative electrodes all are connected together.IC is received in the control of each one-way SCR respectively ₂Output line.At IC ₂Be connected to current-limiting resistance R respectively between each output line and each the unidirectional controllable silicon S CR ₁₀～R ₂₁

The complete machine working condition is as follows: when the K switch of public illumination power is not closed, because integrated package does not have operating voltage, all not conductings of one-way SCR, entire circuit not consuming electric power.When K switch was connected, three-phase electricity A, B, C were added to diode D by kilowatt-hour meter respectively ₂～D ₁₃On, at voltage-stabiliser tube D ₁Last generation+9V operating voltage.IC ₂Under the clock pulse effect, from S ₀Begin to export the positive pulse of 100ms, through current-limiting resistance R ₂₁Unidirectional controllable silicon S CR is triggered in the back ₁₂, make SCR ₁₂Conducting, the load incandescent lamp is luminous, kilowatt-hour meter JM ₁₂Metering.At this moment, diode D ₁₃Partially anti-, but all the other diodes are still made halfwave rectifier.Along with the effect of clock pulse, S ₁, S ₂～S ₁₀, S ₁₁Export the positive pulse of 100ms successively, make SCR ₁₁～SCR ₁Conducting successively, and make kilowatt-hour meter JM ₁₂～JM ₁Power consumption in the average metering load.

When load was transshipped, triode BG was saturated, rest-set flip-flop output " 0 ", NAND gate 5 outputs " 1 ".Make IC like this ₁, IC ₂Zero setting, and be output as " 0 ", controllable silicon ends, and incandescent lamp does not work.Pending fault is pressed the AN key after getting rid of, and circuit restarts work.

The public electric weight divider detailed circuit structure below 32 tunnel that foundation the utility model proposes is referring to Fig. 4.Gauge table is increased to 16 when above, needs to increase by two cmos digital integrated packages, i.e. decoder 4514 and two four input nand gates 4012.With decoder IC ₂With IC ₃The Data In-Line binary number that count pick up device 4520 sends here that connects together.Each self-driven corresponding one-way SCR of decoder DOL Data Output Line.Therefore two 4514 decoders can have 32 output lines at most.

Door 6, door 7 are formed the rest-set flip-flop that low level triggers.Door 6 outputs meet IC ₂Reset terminal R, door 7 outputs 13 meet IC ₃Reset terminal R.Input 10 pin of door 4 output termination doors 7, input 9 pin of input 4 pin of door 6,3 pin and door 5.By C ₄, R ₇The differential circuit of forming is connected on IC ₂S ₁₅Between input 2 pin of end and door 6.By C ₅, R ₂₂The differential circuit of forming meets IC respectively ₃S ₄End reaches input 12 pin of door 7, input 8 pin of door 5.When rigidly connecting energize, because C ₈On voltage be zero, so door 7 is output as " 1 ", door 6 is output as " 0 ", it also is " 1 " that door 4 is exported.Decoder IC ₂Reset terminal R=0, decoder IC ₃Reset terminal R=1, so IC ₂Enter the decoding state, data output S ₀～S ₁₅Export pulse successively.Because of IC ₃R=1, the DOL Data Output Line no-output.Work as IC ₂S ₁₅When being in the high level trailing edge, by R ₇, C ₄The differential circuit of forming is exported the input that a negative pulse is added to door 6, makes the rest-set flip-flop upset of being made up of door 6, door 7.At this moment, door 6 is output as " 1 " door 7 and is output as " 0 ".Like this, decoder IC ₂No-output, IC ₃Output is arranged, up to IC ₃S ₄When end is in the high level trailing edge, by R ₂₂, C ₅The differential circuit output negative pulse of forming.This negative pulse makes the rest-set flip-flop upset that is made of door 6, door 7.Door 6 is exported an of short duration high level simultaneously, makes the counter return-to-zero, treats after the high level, and counter is since 0 counting, and the IC2 decoder has output, IC ₃No-output.

When circuit overloads, door 4 outputs " 0 ", door 5, door 6, door 7 outputs are " 1 ", counter IC ₁, decoder IC ₂, IC ₃Be " 1 " no-output all because of reset terminal.

Claims (4)

1; a kind of public electric weight divider; include counter; decoder; differential circuit; it is characterized in that being serially connected with successively between gauge table and the electric light electronics wave band switching circuit that constitutes by a plurality of controllable silicons; overload protecting circuit and switch; clock-pulse circuit and counter input are joined; decoder input and counter output are joined; the controllable silicon trigger electrode joins in decoder output and the described electronics wave band switching circuit; NAND gate circuit output connects counter; the reset terminal of decoder; be connected to differential circuit between NAND gate circuit input and last output line of decoder, overload protecting circuit joins with another input of described NAND gate circuit.

2, public according to claim 1 electricity distributor is characterized in that each gauge table current output terminal all is connected to diode, and the negative pole of each diode is connected on filter capacitor and the voltage stabilizing didoe after connecting together and connecing current-limiting resistance.

3, public as claimed in claim 1 or 2 electricity distributor, it is characterized in that overload protecting circuit by rest-set flip-flop and be connected on rest-set flip-flop input and sample resistance between provide the triode of triggering signal to constitute.

4, public as claimed in claim 1 or 2 electricity distributor is characterized in that counter by 4514 forming that two incoming lines connect together, and two outputs of the rest-set flip-flop that is made of two NAND gate connect the reset terminal of described counter respectively.

Images