The earth leakage protective socket of a kind of realization
Technical field
The utility model relates to protective circuit and socket, relates in particular to the earth leakage protective socket of a kind of realization.
Background technology
Socket has referred to the insertable seat of one or more circuit connections, can insert various wiring by it, is convenient to connect with other circuit.Supply socket is the electric equipment that power interface is provided for household electrical appliance, also is to use more electrical accessory in the residential electricity design, and it and people's life have ten close relationships.Traditional socket is because of a plurality of electrical equipment uses in succession; if the general 30MA(value of earth leakage protective value is too little; the big protector of a plurality of electrical appliance leakage current additive values can often disconnect; influence normal electricity consumption); but safe leakage current is below 6MA; the traditional protection device can not effectively be protected personal safety as well as the property safety, the residual phenomenon of electrocuting of electricity often occurs.Reaction time is slow and short trouble occurs and all cut off the power supply, and is difficult to find out failure cause.Therefore need a kind of electric leakage, short-circuit protection and man-to-man socket of guarantee electricity consumption can realized to realize safety utilization of electric power.
Summary of the invention
The purpose of this utility model is, at the deficiencies in the prior art, provides a kind of and realizes leaking electricity, the socket of short-circuit protection, realizes power on/off control by control circuit and sensor circuit, and electricity consumption can effectively be identified faulty circuit and makes things convenient for repair and maintenance one to one.
For effectively addressing the above problem, the technical scheme that the utility model is taked is as follows:
The earth leakage protective socket of a kind of realization, it is characterized in that, comprise socket base, this pedestal is made up of testing circuit plate and socket panel, described testing circuit plate is arranged on the lower floor of socket panel, described testing circuit plate is by detection of electrical leakage IC, peripheral cell, reset fuse, electric leakage dropout control circuit and two groups of instrument transformers are formed certainly, described instrument transformer is connected with detection of electrical leakage IC through peripheral cell, detection of electrical leakage IC is connected with electric leakage dropout control circuit, and resettable fuse is connected on input and the output of described testing circuit plate; Described socket panel comprises the resetting means of arranging side by side, test button and one or more groups socket, described resetting means is by being connected and fixing spring link, cramp, controllable silicon, solenoid, catch bar and outside indicator light are formed, described spring link passes cramp and connects realization fastening and dropout, described cramp and catch bar level are installed on the testing circuit plate, described controllable silicon connects solenoid, described catch bar is installed in the centre bore of solenoid, controllable silicon is passed through in fastening and the dropout of cramp and spring link, solenoid and catch bar control connection, this resetting means are connected with described testing circuit plate after passing described socket panel.
Especially, described instrument transformer comprises live wire-zero line instrument transformer and zero line-ground wire instrument transformer respectively.
Especially, described test button comprises a resistance and a Test Switchboard, and this Test Switchboard comprises a switch shrapnel, described resistance one termination live wire input, another termination switch one end, the zero line side of another termination output of switch.
Especially, described testing circuit plate comprises that respectively electric-leakage detection circuit and short-circuit detecting circuit realize electric leakage and short-circuit detecting respectively.
Especially, described resetting means lower end comprises stator contact and the moving plate contact that symmetry row up and down puts respectively, and described moving plate just contact lower end also comprises the secondary spring that resets.
Especially, also comprise a middle cover between described testing circuit plate and the socket panel, testing circuit plate lower end comprises a bottom, and described socket is made up of a plurality of socket copper sheets.
Especially, described spring link comprises restoring link and resetting means.
The earth leakage protective socket of the realization that the utility model provides mainly contains following advantage:
1. earth leakage protective can arrange according to demand in this value of 3mA-6mA() between, precision improves greatly, can guarantee within safe range fully;
2. thread off the reaction time fast (being no more than 20mS), effectively protect personal safety as well as the property safety;
3. satisfy the electricity consumption of many electrical equipment independence, non-interference, the fault of single line does not influence the normal use of other circuit;
4. electricity consumption can effectively be identified faulty circuit and makes things convenient for repair and maintenance one to one, and not only easy to use and abort situation comes into plain view.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is that the earth leakage protective socket of the disclosed realization of the utility model is formed structure chart;
Fig. 2 is the earth leakage protective socket schematic diagram of the disclosed realization of the utility model,
Fig. 3 is the another structural representation of the earth leakage protective socket of the disclosed realization of the utility model;
Fig. 4 is the earth leakage protective socket circuit figure of the disclosed realization of the utility model.
Wherein:
1 socket panel, 2 reset keys, 3 test buttons, 4 socket copper sheets, 5 dropout propelling coils, 6 testing circuit plates, 7 instrument transformers, 8 secondary springs that reset, 9 middle covers, 10 resetting means, 11 switch shrapnels, 12 restoring links, 13 bottoms, 14 moving plate contacts, 15 stator contacts.
Embodiment
Embodiment 1:
As Fig. 1, Fig. 2 and shown in Figure 4, the realization electric leakage that present embodiment provides and the socket of short-circuit protection or plate (present embodiment hereinafter socket comprises plate), comprise socket base, this pedestal is by electric leakage, short-circuit detecting circuit plate 6, socket panel 1 is formed, electric leakage, short-circuit detecting circuit plate 6 is arranged on the lower floor of socket panel 1, electric leakage, short-circuit detecting circuit plate 6 is by live wire-zero line, two groups of instrument transformers 7 of zero line-ground wire, the detection of electrical leakage application-specific integrated circuit, peripheral cell, from the fuse that resets, electric leakage dropout control circuit is formed, described instrument transformer 7 is connected with detection of electrical leakage IC through peripheral cell, detection of electrical leakage IC is connected with electric leakage dropout control circuit, and resettable fuse is connected on input and the output of described testing circuit plate; Described socket panel comprises the resetting means 10 of arranging side by side, test button 3 and one or more groups socket, described resetting means 10 is by being connected and fixing spring link, cramp, controllable silicon, solenoid, catch bar and outside indicator light are formed, described spring link passes cramp and connects realization fastening and dropout, described cramp and catch bar level are installed on the testing circuit plate, described controllable silicon connects solenoid, described catch bar is installed in the centre bore of solenoid, controllable silicon is passed through in fastening and the dropout of cramp and spring link, solenoid and catch bar control connection, this resetting means are connected with described testing circuit plate after passing described socket panel.
Press on ﹠ off switch (once), socket energising (socket operate as normal), one socket copper sheet 4 also is set on the socket, this socket copper sheet 4 is made up of a resistance (15-30K Ω) and a switch, another termination switch one end of resistance one termination live wire input, the zero line side of another termination output of switch, press feeler switch and add a dropout leakage current signal to electric-leakage detection circuit, dropout propelling coil 5 detects this signal and gets electric catch bar reach for Continuity signal solenoid of controllable silicon, back down cramp, resetting means is threaded off, the socket outage.This earth leakage protective socket defencive function has: functions such as short circuit, anti-lightning strike, injured, the anti-fire of protection human electric shock.This earth leakage protective socket meets UL943, UL498 standard.
Embodiment 2:
As Fig. 1, Fig. 2 and shown in Figure 3, the earth leakage protective socket of disclosed realization in this enforcement, comprise socket base, this pedestal is made up of testing circuit plate 6 and socket panel 1, described testing circuit plate 6 is arranged on the lower floor of socket panel, and described testing circuit plate 6 is by detection of electrical leakage IC, peripheral cell, reset fuse, electric leakage dropout control circuit and two groups of instrument transformers 7 are formed certainly; Described socket panel comprises resetting means, socket copper sheet 4 and one or more groups socket, described resetting means is made up of reset key 2, spring link, cramp, controllable silicon, solenoid, catch bar and indicator light, and this resetting means is connected with described testing circuit plate 6 after passing described socket panel.
Described instrument transformer 7 comprises live wire-zero line instrument transformer 7 and zero line-ground wire instrument transformer 7 respectively.Described socket copper sheet 4 comprises a resistance and a Test Switchboard, and this Test Switchboard comprises a switch shrapnel 11, described resistance one termination live wire input, another termination switch one end, the zero line side of another termination output of switch.Described testing circuit plate 6 comprise respectively electric-leakage detection circuit and short-circuit detecting circuit realize respectively the electric leakage and short-circuit detecting.Described resetting means 10 lower ends comprise restoring link 12, and these restoring link 12 lower ends comprise stator contact 15 and the moving plate contact 14 that symmetry row up and down puts respectively, and described moving plate just contact 14 lower ends also comprises the secondary spring 8 that resets.Also comprise a middle cover 9 between described testing circuit plate 6 and the socket panel, testing circuit plate 6 lower ends comprise a bottom 13, and described socket is made up of a plurality of socket copper sheets.
The earth leakage protective socket operation principle of realization in the present embodiment is as follows:
The power line of external connection electrical apparatus is inserted in the socket, the connection power supply uses, a plurality of sockets provide independently shunt circuit list use, do not exert an influence mutually, when one of them electrical equipment breaks down and cuts off the power supply, do not influence the normal use of other socket, or in order to ensure its fail safe, reset key is upspring automatically, disconnect with main circuit, avoid other connecting circuit to receive interference such as unstable voltage and influence its function.Sensor circuit receives abnormal voltage or current data is made a response, the control circuit shunting realizes the independent shunting of many sockets, realization earth leakage protective mutually combines, both can independent folding realize connecting and disconnecting of the circuit control, can automatically reset again by recovering the fusing fuse control circuit folding of safeties certainly, reach the purpose of safety utilization of electric power, electricity consumption can effectively be identified faulty circuit and makes things convenient for repair and maintenance one to one; Earth leakage protective is between 3MA-6MA, and precision improves greatly, and the reaction time be no more than 0.2S, be swift in response; Satisfy the electricity consumption of many electrical equipment independence, non-interference, the fault of single line does not influence the normal use of other circuit, and not only easy to use and abort situation comes into plain view.
The utility model is not limited to above-mentioned execution mode, and all employings and the utility model analog structure are realized all modes of the utility model purpose, all within protection range of the present utility model.