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CN104112954B - Earth leakage protective socket - Google Patents

Earth leakage protective socket Download PDF

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Publication number
CN104112954B
CN104112954B CN201310141360.9A CN201310141360A CN104112954B CN 104112954 B CN104112954 B CN 104112954B CN 201310141360 A CN201310141360 A CN 201310141360A CN 104112954 B CN104112954 B CN 104112954B
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power supply
conductor
supply output
tripping mechanism
contact
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CN104112954A (en
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黄华道
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Abstract

A kind of earth leakage protective socket; it includes a pair power supply input metallic conductor, a pair power supply output metallic conductor, two power supply output sleeve conductors; it is characterized in that: after the power supply input wires screw of earth leakage protective socket is correctly connected by user with the power line in wall; when not pressing SR RESET and SR RESET is trip status, the moving contact of power supply input metallic conductor is off-state with the stationary contact on power supply output sleeve conductor;And, the movable contact of power supply output metallic conductor contacts with another stationary contact on power supply output sleeve conductor, and it is a conductor that power supply output metallic conductor exports sleeve conductor with power supply respectively;Pressing SR, when SR is reset state, moving contact on power supply input metallic conductor and the stationary contact Guan Bi on power supply output sleeve conductor, the movable contact on power supply output metallic conductor contacts all the time with another stationary contact on power supply output sleeve conductor.

Description

Earth leakage protective socket
Technical field
The present invention relates to a kind of follow-on earth leakage protective socket.When the SR RESET of earth leakage protective socket is in trip status, the power supply output metallic conductor that this earth leakage protective socket is connected with load wiring end LOAD is connected with power supply output sleeve conductor.
Background technology
Along with the development of earth leakage protective socket industry, people are more and more higher to the requirement of earth leakage protective socket.For the user, it is desirable to the function of earth leakage protective socket is more and more powerful, use safety and reliability, work more stable.For producer, it is desirable on the premise of constantly promoting the function of earth leakage protective socket, stability, security, production technology is increasingly simpler, and manufacturing cost is more and more lower, and the output of earth leakage protective socket is more reliable, stable.
Summary of the invention
In view of the foregoing, it is an object of the invention to provide that a kind of production technology is simple, low cost of manufacture, power supply export earth leakage protective socket more stable, reliable.
It is a further object of the present invention to provide a kind of earth leakage protective socket, when the power line in wall is connected by user mistakenly with earth leakage protective socket load wiring end LOAD, this earth leakage protective socket does not has power supply to export, to guarantee by the safety of electric loading.
For achieving the above object; the present invention is by the following technical solutions: a kind of earth leakage protective socket; the control circuit plate that the realized earth leakage protective socket that it includes housing, be arranged in housing exports with/without power supply; described control circuit plate is provided with a pair power supply input metallic conductor, a pair power supply export metallic conductor, two power supplys output sleeve conductors, and power supply input metallic conductor can be made to realize the assembly of electrically connected/disconnection with power supply output sleeve conductor;
The both sides of the middle layer bracket that described two power supplys output sleeve conductor insulate in being individually positioned in described housing, wherein, a power supply output sleeve conductor is provided with two stationary contacts, and another power supply output sleeve conductor also is provided with two stationary contacts;
One end of described power supply input metallic conductor is bent downwardly 90 degree, is welded on control circuit plate through differential differentiating transformer;The other end of power firestreak input metallic conductor is provided with moving contact, this moving contact and the most corresponding contact of stationary contact on a power supply output sleeve conductor or disconnection, constitutes a power switch;The other end of zero-power line input metallic conductor is provided with moving contact, and this moving contact is the most corresponding with the stationary contact on another root power supply output sleeve conductor to be contacted or disconnects, and constitutes second power supply switch;
Described power supply output metallic conductor is welded on the other end of control circuit plate;Be provided with a movable contact in the end of power firestreak output metallic conductor, this movable contact contacts with another stationary contact on power supply output sleeve conductor;Be provided with a movable contact in the end of zero-power line output metallic conductor, this movable contact contacts with another stationary contact on power supply output sleeve conductor;
After the power firestreak of earth leakage protective socket, zero line input wires screw are correctly connected by user with the power line in wall; when not pressing SR RESET and SR RESET is trip status, the moving contact of power supply input metallic conductor is off-state with the stationary contact on power supply output sleeve conductor;And, the movable contact of power supply output metallic conductor contacts with another stationary contact on power supply output sleeve conductor, and it is a conductor that power supply output metallic conductor exports sleeve conductor with power supply respectively;
Pressing SR RESET, when SR RESET is reset state, moving contact on power supply input metallic conductor and the stationary contact Guan Bi on power supply output sleeve conductor, the movable contact on power supply output metallic conductor contacts all the time with another stationary contact on power supply output sleeve conductor.
The assembly that the present invention is arranged on described control circuit plate includes being embedded in the reset guide post below SR, the back-moving spring being enclosed within reset guide post and fast trip spring, upper tripping mechanism, lower tripping mechanism, snap close, the tripping coil being built-in with iron core and the switch plate of SR linkage;
Described upper tripping mechanism is positioned at the groove of framework of trip coil, and lower tripping mechanism is positioned at framework of trip coil bottom groove;
The centre of upper tripping mechanism has a perforation, and the centre of lower tripping mechanism also has a perforation;It is embedded in the reset guide post below SR RESET to be against on snap close through upper tripping mechanism and lower tripping mechanism;
Described upper tripping mechanism and lower tripping mechanism SR RESET therewith move up and down;
Upper tripping mechanism arranged on left and right sides stretches out a cantilever respectively, and power firestreak, zero line input conductor lay respectively at the cantilever of the tripping mechanism left and right sides, and move up and down together with upper tripping mechanism;
Lower tripping mechanism is embedded in framework of trip coil bottom groove, and lower tripping mechanism, during moving up and down along with SR, makes described switch plate Guan Bi or disconnects.
Present invention additionally comprises a false wiring tripping mechanism, this false wiring tripping mechanism is positioned at coil rack groove;
Having a hole on this false wiring tripping mechanism, be face with a ramp inside the bottom in hole, the front end of the iron core being built in described tripping coil passes this hole;
The arranged on left and right sides of false wiring tripping mechanism is respectively fixed with a compression leg being cased with spring, the lower section of this compression leg, and power supply output sleeve conductor is respectively equipped with a prominent elastomeric platform;A spring it is provided with between the bottom of false wiring tripping mechanism and coil rack groove;
When the power firestreak of earth leakage protective socket, zero line input wires screw are correctly connected by user with the power line in wall; no matter SR RESET is in trip status; or SR RESET is in reset state; false wiring tripping mechanism is failure to actuate, and the lower section of the compression leg of the false wiring tripping mechanism left and right sides does not contacts with the prominent elastomeric platform on power supply output sleeve conductor;
When the load wiring end of earth leakage protective socket is connected by user mistakenly with the power line in wall; magnetic field is produced in tripping coil; the iron core action being built in tripping coil; the head compressing false wiring tripping mechanism of iron core moves down; the elastomeric platform that power supply output sleeve conductor is prominent pushed down by the compression leg making the false wiring tripping mechanism left and right sides, so that the movable contact on power firestreak, zero line output metallic conductor disconnects with another stationary contact on power supply output sleeve conductor;
The elastomeric platform that the compression leg of false wiring tripping mechanism highlights with power supply output sleeve conductor contacts, and compression leg contacts with power supply input metallic conductor again, so, power supply input metallic conductor links together with power supply output sleeve conductor.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention;
Fig. 2 is decomposition texture schematic diagram of the present invention;
Fig. 3 is each building block explosive view on circuit board of the present invention;
Fig. 4, Fig. 5 are the annexation schematic diagram between power supply of the present invention input sheet metal, power supply output sheet metal, power supply output sleeve conductor;
Fig. 6 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in trip status; movable contact on power supply input sheet metal is off with the stationary contact on power supply output sleeve, and the position relationship schematic diagram between each building block on circuit board;
Fig. 7 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in trip status; position relationship schematic diagram between each building block that stationary contact on power supply output sleeve and the movable contact on power supply output metallic conductor are on closure state, and circuit board;
Fig. 8 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is pressed; position relationship schematic diagram between each building block that stationary contact on power supply output sleeve is still on closure state, and circuit board with the movable contact on power supply output metallic conductor;
Fig. 9 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in reset state; position relationship schematic diagram between each building block that movable contact on power supply input sheet metal and the stationary contact on power supply output sleeve are on closure state, and circuit board;
Figure 10 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in reset state; position relationship schematic diagram between each building block that stationary contact on power supply output sleeve is still on closure state, and circuit board with the movable contact on power supply output metallic conductor;
Figure 11 is partial sectional view of the present invention; when the power line in wall is connected by user mistakenly with earth leakage protective socket load wiring end LOAD; movable contact on power supply input sheet metal is off with the stationary contact on power supply output sleeve, and the position relationship schematic diagram between each building block on circuit board;
Figure 12 is partial sectional view of the present invention; when the power line in wall is connected by user mistakenly with earth leakage protective socket load wiring end LOAD; stationary contact on power supply output sleeve is off with the movable contact on power supply output metallic conductor, and the position relationship schematic diagram between each building block on circuit board;
Figure 13 is partial sectional view of the present invention; during pressing testing button TEST; movable contact on power supply input sheet metal is off with the stationary contact on power supply output sleeve, and earth leakage protective socket does not has power supply to export, and the position relationship schematic diagram between each building block on circuit board.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the control circuit plate 18 that earth leakage protective socket disclosed by the invention is mainly exported with/without power supply by housing, the realized earth leakage protective socket that is arranged in housing is constituted.
Described housing is combined by upper cover 1, the middle layer bracket 9 of insulation and base 60;Between the middle layer bracket 9 of upper cover 1 and insulation, metallic ground installing plate 7 is installed;Between middle layer bracket 9 and the base 60 of insulation, control circuit plate 18 is installed.
As shown in Figure 1 and Figure 2, upper cover 1 has power supply output plughole, testing button hole 1A, SR hole 1B and status indicator lamp hole 1C.SR (RESET) 3 and testing button (TEST) 2, SR 3 and testing button 2 middle layer bracket 9 through metallic ground installing plate 7 and insulation is installed in SR hole 1B and testing button hole 1A tactile with the attached components on circuit board 18.Pressing SR RESET; make the assembly action on control circuit plate 18; so that SR RESET resets or threads off; and then making the movable contact on power supply input sheet metal and the stationary contact Guan Bi on power supply output sleeve, the load wiring end LOAD of earth leakage protective socket and power supply output plughole have power supply to export.
As in figure 2 it is shown, be placed with a power supply output sleeve conductor 10 and 11 respectively in the both sides of Jue Yuan middle layer bracket 9.At the two ends of power supply output sleeve conductor 10,11, it is provided with sheet clip leaf wing 62,63,64,65 with the power supply output plughole null line hole on upper cover 1, the most vertical place, live wire hole.Wherein, a power supply output sleeve conductor 10 is provided with two stationary contacts 10A, 10B and a prominent platform 10C.It also is provided with two stationary contacts 11A, 11B and a prominent platform 11C on another power supply output sleeve conductor 11.
The control circuit plate 18 that the core component of the present invention is mounted in housing, the function that it has the power supply output plughole made on socket upper cover 1, the load wiring end of base 60 both sides exports with/without power supply.
As shown in Fig. 2, Fig. 4, Fig. 5, it is provided with two elastic power firestreaks, zero line input metallic conductor 15,16 in one end of control circuit plate 18.One end of power firestreak, zero line input metallic conductor 15,16 is bent downwardly 90 degree, it is welded on circuit board 18 through differential differentiating transformer 14, it is connected with power firestreak, zero line input wires screw by power supply input wires sheet 18A, 18B, power firestreak input wires screw is connected with the power firestreak in wall by wire, and zero-power line input wires screw is connected with the zero-power line in wall by wire.The other end of power firestreak input metallic conductor 15 is provided with moving contact 15A, and this moving contact 15A is the most corresponding with the stationary contact 10A on power supply output sleeve conductor 10 to be contacted or disconnects, and constitutes a power switch.The other end of zero-power line input metallic conductor 16 is provided with moving contact 16A, and this moving contact 16A is the most corresponding with the stationary contact 11A on power supply output sleeve conductor 11 to be contacted or disconnects, and constitutes second power supply switch.
The other end at circuit board 18 is welded with a pair power firestreak being connected with load wiring end, zero line output metallic conductor 22,23.It is provided with a movable contact 22A, this movable contact 22A in the end of power firestreak output metallic conductor 22 to contact with another stationary contact 10B on power supply output sleeve conductor 10.It is provided with a movable contact 23A, this movable contact 23A in the end of zero-power line output metallic conductor 23 to contact with another stationary contact 11B on power supply output sleeve conductor 11.
After the power firestreak of earth leakage protective socket, zero line input wires screw are correctly connected by user with the power line in wall; when not pressing SR RESET and SR RESET is trip status; the moving contact 15A of power firestreak input metallic conductor 15 is off-state with the stationary contact 10A on power supply output sleeve conductor 10, and the moving contact 16A of zero-power line input the metallic conductor 16 and stationary contact 11A on power supply output sleeve conductor 11 is also in off-state;And, the movable contact 22A of power firestreak output metallic conductor 22 and another stationary contact 10B on power supply output sleeve conductor 10 contacts, and power firestreak output metallic conductor 22 is a conductor with power supply output sleeve conductor 10;The movable contact 23A of zero-power line output metallic conductor 23 contacts with another stationary contact 11B on power supply output sleeve conductor 11, and zero-power line output metallic conductor 23 is a conductor with power supply output sleeve conductor 11.Stationary contact 10A, 11A of exporting on sleeve conductor 10,11 due to moving contact 15A, the 16A on power firestreak, zero line input metallic conductor 15,16 and power supply are off-state, so, earth leakage protective socket does not has power supply to export.
Pressing SR RESET; when SR RESET is reset state; moving contact 15A, 16A on power firestreak, zero line input metallic conductor 15,16 and stationary contact 10A, 11A Guan Bi on power supply output sleeve conductor 10,11; movable contact 22A, 23A on power firestreak, zero line output metallic conductor 22,23 contacts all the time with another stationary contact 10B, the 11B on power supply output sleeve conductor 10,11, therefore earth leakage protective socket has power supply to export.
As shown in Figure 2 and Figure 3, circuit board 18 is additionally provided with the differential differentiating transformer 14 for detecting leakage current.When occurring leaky in current supply circuit, differential differentiating transformer will export control signal, makes the assembly action on control circuit plate 18, makes SR RESET reset/thread off, and earth leakage protective socket exports with/without power supply.
As it is shown on figure 3, the assembly being arranged on control circuit plate 18 includes being embedded in SR 3 reset guide post 3B, the back-moving spring 4 being enclosed within reset guide post 3B and fast trip spring 5, upper tripping mechanism 30, lower tripping mechanism 39, snap close 41, the tripping coil 19 being built-in with iron core 36 and the switch plate 40,42,43,45,46,50,51,52,56,57,58 of SR linkage below.
Upper tripping mechanism 30 is positioned at the groove 19C of framework of trip coil, and lower tripping mechanism 39 is positioned at framework of trip coil bottom groove 19D.The centre of upper tripping mechanism 30 has a perforation 30C, and the centre of lower tripping mechanism 39 also has a perforation.It is embedded in the reset guide post 3B below SR RESET to be against on snap close 41 through upper tripping mechanism 30 and lower tripping mechanism 39.Upper tripping mechanism 30 and lower tripping mechanism 39 SR RESET therewith move up and down.
Upper tripping mechanism 30 arranged on left and right sides stretches out a cantilever respectively, and power firestreak, zero line input conductor 15,16 lay respectively at the cantilever 30A of tripping mechanism 30 left and right sides, and move up and down together with upper tripping mechanism 30.
Lower tripping mechanism 39 is embedded in framework of trip coil bottom groove 19D, and lower tripping mechanism 39, during moving up and down along with SR, makes switch plate 40,42,43,45,46,50,51,52,56,57,58 Guan Bi or disconnects.
When the power line in wall is connected by user mistakenly with earth leakage protective socket load wiring end LOAD, in order to make earth leakage protective socket not have power supply to export, to guarantee by the safety of electric loading, as it is shown on figure 3, present invention additionally comprises a false wiring tripping mechanism 29.This false wiring tripping mechanism 29 is positioned at coil rack groove 19E.Having a hole on false wiring tripping mechanism 29, be face with a ramp inside the bottom in hole, the front end of the iron core 36 being built in tripping coil passes this hole.The arranged on left and right sides of false wiring tripping mechanism 29 is respectively fixed with a compression leg 31 being cased with spring 33.The lower section of this compression leg 31, power supply output sleeve conductor 10,11 is respectively equipped with prominent platform 10C, a 11C.A spring 34 it is provided with between the bottom of false wiring tripping mechanism 29 and coil rack groove 19E.
When the power firestreak of earth leakage protective socket, zero line input wires screw are correctly connected by user with the power line in wall; no matter SR RESET is in trip status; or SR RESET is in reset state; false wiring tripping mechanism 29 is all failure to actuate, and the lower section of the compression leg 31 of false wiring tripping mechanism 29 left and right sides does not contacts with prominent elastomeric platform 10C, the 11C on power supply output sleeve conductor 10,11.
As is illustrated by figs. 11 and 12, when the load wiring end of earth leakage protective socket is connected by user mistakenly with the power line in wall, magnetic field is produced in tripping coil 19, iron core 36 action being built in tripping coil 19, the head 36A compressing false wiring tripping mechanism 29 of iron core 36 moves down, power supply output sleeve conductor 10 pushed down by the compression leg 31 making false wiring tripping mechanism 29 left and right sides, 11 prominent elastomeric platform 10C, 11C, so that power firestreak, zero line output metallic conductor 22, movable contact 22A on 23, 23A exports sleeve conductor 10 with power supply, another stationary contact 10B on 11, 11B disconnects.The compression leg 31 of false wiring tripping mechanism 29 contacts with power supply output sleeve conductor 10,11 prominent elastomeric platform 10C, 11C, compression leg 31 contacts with power supply input metallic conductor 15,16 again, so, power supply input metallic conductor 15,16 links together with power supply output sleeve conductor 10,11.
As shown in Figure 2 and Figure 3, the present invention is provided with a discharge metal sheets 35 at distance power supply input wires sheet 18B mono-segment distance 18C, and the end of discharge metal sheets 35 is provided with a protruding 35A.The present invention utilizes protruding 3A and power supply input wires sheet 18B to discharge.
Fig. 6 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in trip status; movable contact 15A, 16A on power supply input sheet metal 15,16 is off with stationary contact 10A, the 11A on power supply output sleeve 10,11, and the position relationship schematic diagram between each building block on circuit board.
Fig. 7 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in trip status; position relationship schematic diagram between each building block that stationary contact 10B, 11B on power supply output sleeve conductor 10,11 and movable contact 22A, 23A on power supply output metallic conductor 22,23 is on closure state, and circuit board.
Fig. 8 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is pressed; position relationship schematic diagram between each building block that stationary contact 10B, 11B on power supply output sleeve conductor 10,11 is still on closure state, and circuit board with movable contact 22A, the 23A on power supply output metallic conductor 22,23.
Fig. 9 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in reset state; position relationship schematic diagram between each building block that movable contact 15A, 16A on power supply input sheet metal 15,16 and stationary contact 10A, 11A on power supply output sleeve conductor 10,11 is on closure state, and circuit board.
Figure 10 is partial sectional view of the present invention; represent when earth leakage protective socket SR RESET is in reset state; position relationship schematic diagram between each building block that stationary contact 10A, 11A on power supply output sleeve conductor 10,11 is still on closure state, and circuit board with movable contact 22A, the 23A on power supply output metallic conductor 22,23.
Figure 13 is partial sectional view of the present invention; when representing pressing testing button TEST; movable contact 15A, 16A on power supply input sheet metal 15,16 is off with stationary contact 10A, the 11A on power supply output sleeve conductor 10,11; earth leakage protective socket does not has power supply to export, and the position relationship schematic diagram between each building block on circuit board.
The above is the specific embodiment of the present invention and the know-why used, any based on the equivalent transformation on the basis of technical solution of the present invention, within belonging to scope.

Claims (1)

1. an earth leakage protective socket, it includes housing, the realized earth leakage protective that is arranged in housing is inserted Seat, with/without the control circuit plate of power supply output, is provided with a pair power supply input metal on described control circuit plate and leads Body, a pair power supply output metallic conductor, two power supply output sleeve conductors, and power supply input gold can be made Belong to conductor and power supply exports sleeve conductor and realizes the assembly of electrically connected/disconnection;
The middle level that described two power supplys output sleeve conductor (10,11) are insulated in being individually positioned in described housing The both sides of support (9), wherein, power supply output sleeve conductor (10) be provided with two stationary contacts (10A, 10B), another power supply output sleeve conductor (11) also is provided with two stationary contacts (11A, 11B);
One end of described power supply input metallic conductor (15,16) is bent downwardly 90 degree, through differential differential Transformer is welded on control circuit plate;The other end of power firestreak input metallic conductor (15) is provided with dynamic touching Head (15A), this moving contact (15A) and the stationary contact (10A) on power supply output sleeve conductor (10) The most corresponding contact or disconnection, constitute a power switch;Zero-power line inputs the another of metallic conductor (16) One end is provided with moving contact (16A), quiet on this moving contact (16A) and another root power supply output sleeve conductor (11) The most corresponding contact in contact (11A) or disconnection, constitute second power supply switch;
Described power supply output metallic conductor (22,23) is welded on the other end of control circuit plate (18);? The end of power firestreak output metallic conductor (22) is provided with a movable contact (22A), this movable contact (22A) Contact with another stationary contact (10B) on power supply output sleeve conductor (10);Export at zero-power line The end of metallic conductor (23) is provided with a movable contact (23A), and this movable contact (23A) is defeated with power supply Go out another stationary contact (11B) contact on sleeve conductor (11);
When user is correctly by the power firestreak of earth leakage protective socket, zero line input wires screw and wall Power line connect after, do not pressing SR RESET and SR RESET for thread off During state, the moving contact (15A, 16A) of power supply input metallic conductor (15,16) is inserted with power supply output Stationary contact (10A, 11A) on set conductor (10,11) is in off-state;And, power supply output metal The movable contact (22A, 23A) of conductor (22,23) exports on sleeve conductor (10,11) with power supply Another stationary contact (10B, 11B) contacts, and power supply output metallic conductor (22,23) is defeated with power supply respectively Going out sleeve conductor (10,11) is a conductor;
Pressing SR RESET, when SR RESET is reset state, power supply input metal is led Moving contact (15A, 16A) on body (15,16) exports on sleeve conductor (10,11) with power supply Stationary contact (10A, 11A) closes, movable contact on power supply output metallic conductor (22,23) (22A, 23A) connect all the time with another stationary contact (10B, 11B) on power supply output sleeve conductor (10,11) Touch;
The assembly being arranged on described control circuit plate (18) includes being embedded in SR (3) answering below Position lead (3B), the back-moving spring (4) being enclosed within reset guide post (3B) and fast trip spring (5), upper tripping mechanism (30), lower tripping mechanism (39), snap close (41), be built-in with iron core (36) Tripping coil (19) and SR linkage switch plate (40,42,43,45,46,50,51, 52、56、57、58);
Described upper tripping mechanism (30) is positioned at groove (19C) place of framework of trip coil, lower tripping mechanism (39) framework of trip coil bottom groove (19D) place it is positioned at;
The centre of upper tripping mechanism (30) has a perforation (30C), the centre of lower tripping mechanism (39) Also a perforation is had;It is embedded in the reset guide post (3B) below SR RESET through upper dropout machine Structure (30) and lower tripping mechanism (39) are against on snap close (41);
Described upper tripping mechanism (30) and lower tripping mechanism (39) SR RESET therewith are upper and lower Mobile;
Upper tripping mechanism (30) arranged on left and right sides stretches out a cantilever, power firestreak, zero line input conductor respectively (15,16) lay respectively at cantilever (30A) place of tripping mechanism (30) left and right sides, and de-with upper Buckle mechanism (30) moves up and down together;
Lower tripping mechanism (39) is embedded in framework of trip coil bottom groove (19D), lower tripping mechanism (39) During moving up and down along with SR, make described switch plate (40,42,43,45,46,50, 51,52,56,57,58) close or disconnect;It is characterized in that:
Present invention additionally comprises a false wiring tripping mechanism (29), this false wiring tripping mechanism (29) position In coil rack groove (19E) place;
Have a hole on this false wiring tripping mechanism (29), be face with a ramp inside the bottom in hole, The front end of the iron core (36) being built in described tripping coil passes this hole;
The arranged on left and right sides of false wiring tripping mechanism (29) is respectively fixed with a pressure being cased with spring (33) Post (31), the lower section of this compression leg (31), power supply output sleeve conductor (10,11) is respectively equipped with one Individual prominent elastomeric platform (10C, 11C);At the bottom of false wiring tripping mechanism (29) and coil bone A spring (34) it is provided with between frame groove (19E);
When user is correctly by the power firestreak of earth leakage protective socket, zero line input wires screw and wall Power line connect time, no matter SR RESET is in trip status, or SR RESET Being in reset state, false wiring tripping mechanism (29) is failure to actuate, and false wiring tripping mechanism (29) is left The lower section of the compression leg (31) of right both sides is put down with the prominent elasticity on power supply output sleeve conductor (10,11) Platform (10C, 11C) does not contacts;
When the load wiring end of earth leakage protective socket is connected by user mistakenly with the power line in wall, Magnetic field, iron core (36) action being built in tripping coil (19), iron is produced in tripping coil (19) The head (36A) compressing false wiring tripping mechanism (29) of core (36) moves down, and makes false wiring The compression leg (31) of tripping mechanism (29) left and right sides is pushed down power supply output sleeve conductor (10,11) and is highlighted Elastomeric platform (10C, 11C) so that on power firestreak, zero line output metallic conductor (22,23) Movable contact (22A, 23A) and power supply output sleeve conductor (10,11) on another stationary contact (10B, 11B) disconnect;
The compression leg (31) of false wiring tripping mechanism (29) is dashed forward with power supply output sleeve conductor (10,11) Elastomeric platform (10C, 11C) contact gone out, compression leg (31) inputs metallic conductor (15,16) with power supply again Contact, so, power supply input metallic conductor (15,16) is with power supply output sleeve conductor (10,11) even It is connected together.
CN201310141360.9A 2013-04-22 2013-04-22 Earth leakage protective socket Active CN104112954B (en)

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CN104112954B true CN104112954B (en) 2016-09-07

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538955A (en) * 2014-12-23 2015-04-22 黄华道 Power supply device with overcurrent protection function
CN112271502B (en) * 2020-10-20 2025-06-03 中山市开普电器有限公司 A leakage protection socket

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Publication number Priority date Publication date Assignee Title
US5831802A (en) * 1996-06-18 1998-11-03 Ahmed; Samir Omar Ramsey Electronic circuit for automatic disconnector
CN201352656Y (en) * 2008-12-31 2009-11-25 黄华道 Novel multifunctional electric-leakage protection socket
CN102237615A (en) * 2010-04-22 2011-11-09 黄华道 Novel electric leakage protection socket
CN102136651A (en) * 2010-12-09 2011-07-27 浙江万盛电气有限公司 Leakage protection socket with baffle locking mechanism
CN102509919A (en) * 2011-10-31 2012-06-20 黄华道 Leakage protection socket with inverted wiring protection function

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