CN102185222B - Leakage protection socket with reverse wiring protection function - Google Patents
Leakage protection socket with reverse wiring protection function Download PDFInfo
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- CN102185222B CN102185222B CN 201110048951 CN201110048951A CN102185222B CN 102185222 B CN102185222 B CN 102185222B CN 201110048951 CN201110048951 CN 201110048951 CN 201110048951 A CN201110048951 A CN 201110048951A CN 102185222 B CN102185222 B CN 102185222B
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- moving contact
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- snap close
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Abstract
The invention provides a leakage protection socket with a reverse wiring protection function, which comprises a shell, an output conductor, a reset button, a power input end, a power output end, an input moving contact, an output moving contact and a circuit board, wherein a lock mechanism and an electromagnetic tripping mechanism are arranged in the shell, and the output conductor has two pairs of fixed contacts; extension arms on two sides of the reset button are provided with hold-down mechanisms capable of making the input moving contacts and the fixed contacts of the output conductor contacted and connected, and when the reset button is located, the input moving contact is conducted with the output conductor; and the electromagnetic tripping mechanism comprises a sleeve wound with electromagnetic coils, an iron core and a permanent magnet, and the upper end of the iron core is provided with a switch which disconnects the output moving contact and the output conductor and connectsthe input moving contact and the output conductor in a contact way during descending. The leakage protection socket with the anti-wiring protection function has the advantages that: the unlocking mechanism of the lock catch mechanism is arranged longitudinally, the locking and unlocking actions of the lock catch are stable and highly reliable, the switch makes the normally closed output moving contact and input moving contact open quickly during reverse wiring and safe in use.
Description
Technical field
What the present invention relates to is a kind of supply socket, specifically refers to a kind of earth leakage protective socket with backing protection function.
Background technology
Existing earth leakage protective socket; generally comprise housing; the a pair of output conductor that has the conductor sleeve; reset button; power input; power output end; the a pair of input moving contact that links to each other with power input and; a pair of output moving contact and circuit board that power output end links to each other; also be provided with in the housing and can and be used for when producing leakage current the electromagnetic trip mechanism of latching device release etc. with the latching device of reset button hook location; the circuit structure that plays creepage protection function can be the application for a patent for invention of CN200810104187.4 with reference to application number; and be arranged on the electromagnetic trip mechanism horizontally set of this earth leakage protective socket; the precision requirement of mechanism is higher; the iron core of earth leakage protective socket being installed back electromagnetic trip mechanism on the wall moves up and down; thereby the impact instability and the long shortcoming of trip time that exist iron core to move, may cause that coil heating is burnt out even can not trip when causing leakage current occurring.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, and a kind of simple in structure, earth leakage protective socket with backing protection function that operation precision is high is provided.
For achieving the above object, the present invention institute is by the following technical solutions:
Earth leakage protective socket with backing protection function, comprise housing, conduct electricity the output conductor of sleeve a pair of having, reset button, power input, power output end, the a pair of input moving contact that links to each other with power input, the a pair of output moving contact and the circuit board that link to each other with power output end, also be provided with in the housing and can and be used for when producing leakage current electromagnetic trip mechanism with the latching device release with the latching device of reset button hook location, described output conductor have two pairs be respectively up and down towards fixed contact, the input moving contact is positioned at output conductor fixed contact top up, and the output moving contact is positioned at output conductor fixed contact below and Elastic Contact down; Reset button both sides adjutage is provided with the hold-down mechanism that the input moving contact can be contacted conducting with the output conductor fixed contact, input moving contact and output conductor conducting when reset button is located by latching device; Described electromagnetic trip mechanism comprises sleeve, be located at the iron core in the sleeve and be positioned at the permanent magnet of iron core below, be wound with on the sleeve when the reversal connection line produce that magnetic field makes that iron core overcomes input, the elastic resistance of output moving contact descends and with the solenoid of permanent magnet adhesive, the iron core upper end be provided with when the reversal connection line, follow iron core descend and will export simultaneously moving contact with the output conductor disconnection, will import moving contact contacts conducting with output conductor bridgeware; Described bridgeware is provided with a pair of horizontal presser feet and a pair of vertical presser feet, and laterally presser feet is positioned at input moving contact top, and vertically presser feet is positioned at output moving contact top.
Further, described latching device comprises snap close, backing plate and snap close back-moving spring, backing plate one end is provided with spring base, snap close has that the ammunition feed spring abutment passes and the through hole of snap close back-moving spring activity, be provided with the projection for suit snap close back-moving spring in the through hole, the snap close back-moving spring other end is resisted against on the spring base of backing plate; Snap close and backing plate are stacked up and down, and snap close has lockhole, and described reset button below has lead, reset button lead lower end have can with the groove of snap close lockhole edge hook location.
Described iron core has the groove with snap fit, described latch under the snap close back-moving spring nature spacing by the iron core groove, the iron core groove up and down inner edge all to have a transition domatic, it is domatic that the snap close limiting section has the transition that cooperates with it.
Hold-down mechanism on the described reset button adjutage is the protruding nail integrally formed with the reset button adjutage, and protruding nail is positioned at input moving contact top, and protruding nail will be imported moving contact and contact conducting with output conductor when reset button is located by latching device.
Hold-down mechanism on the described reset button adjutage comprises protruding nail and the protruding nail back-moving spring that has limited step, protruding nail is positioned at input moving contact top, the reset button adjutage has protruding nail storage tank, protruding nail storage tank lower end has the storage tank limited step that the through hole that stretches out for protruding nail and protruding nail limited step cooperate, protruding nail storage tank upper end is provided with the elasticity card base, and protruding nail back-moving spring two ends offset with elasticity card base and protruding nail limited step respectively.
Be provided with holder in the described housing, holder is provided with at least one vertical mounting groove or installing hole, vertically be provided with the circuit board power supply terminal in mounting groove or the installing hole, input has on the moving contact and the output conductor moving contact that cooperates of fixed contact up, and wherein zero line is imported on the moving contact and also had a moving contact that cooperates with the circuit board power supply terminal.
Described circuit board power supply terminal elasticity arranges, the flexible wire that the circuit board power supply terminal comprises the sheet metal that has fixed contact, is electrically connected with sheet metal and circuit board respectively with the fixedly connected spring of sheet metal and two ends, but sheet metal is together with elevating movement in the vertical mounting groove of power spring holder or the installing hole.
The fast trip plate is set on the described holder, fast trip sheet reset spring is set between fast trip plate and the holder, fast trip plate top arranges the output conductor pedestal, output conductor pedestal and fast trip plate all have the through hole that passes for the reset button lead, the reset button lead has the limited step that cooperates with the fast trip plate, the fast trip plate is located at reset button lead limited step below, and the fast trip plate has the extended stabilizer that is positioned at input moving contact below.
The reset button side also is provided with by presser feet, circuit board is provided with the channel selector of being made up of moving sheet metal and fixed contact, channel selector is electrically connected between power output end and the iron-core coil, moving sheet metal is positioned at fixed contact below and Elastic Contact, reset button be positioned at the moving sheet metal top of channel selector by presser feet.
For realizing life end checking function; this earth leakage protective socket also is provided with life-span stop detection mechanism; comprise testing button and Test Switchboard; Test Switchboard is made up of the moving sheet metal and the fixed contact that all are electrically connected with circuit board; the free end of the moving sheet metal of Test Switchboard is positioned at the latching device below; fixed contact is positioned at moving sheet metal below; testing button has the testing button lead; the testing button lead is positioned at the spring base top of snap close backing plate, and output conductor pedestal and holder are equipped with the through hole that passes for the testing button lead.
Reset button lead lower end has cone-shaped end, and the root of cone-shaped end has ring-shaped step.
Testing button and reset button interlock, reset button has the step of pressing, and testing button has with reset button presses the supporting step that step cooperates.
Described holder and iron core sleeve all have the breach for the latching device transverse movement.
Compared with prior art, beneficial effect of the present invention is: the release mechanism of latching device vertically arranges, the locking and unlocking stable action of snap close, and good reliability, normally closed output was gone into moving contact and is opened rapidly when bridgeware made the reversal connection line, used safety.
Description of drawings
Fig. 1 is the assembly structure schematic diagram of the embodiment of the invention one;
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the invention one;
Fig. 3 is one of output conductor of the present invention and the structural representation of importing moving contact and output moving contact matching relationship;
Fig. 4 is another output conductor of the present invention and the structural representation of importing moving contact and output moving contact matching relationship;
Fig. 5 is the structural representation of the interior basic element of character combination of the housing of the embodiment of the invention one;
Fig. 6 is electrical block diagram of the present invention;
Fig. 7 is the latching device of the embodiment of the invention one under initial condition and the structural representation of electromagnetic trip mechanism;
Fig. 8 is the structural representation of the hold-down mechanism of the embodiment of the invention one under initial condition;
Fig. 9 is the structural representation of the embodiment of the invention one latching device and electromagnetic trip mechanism under the reversal connection line states;
Figure 10 is the structural representation of the hold-down mechanism of the embodiment of the invention one under the reversal connection line states;
Figure 11 is the structural representation of the embodiment of the invention one latching device and electromagnetic trip mechanism when testing button is pressed;
Figure 12 is the structural representation of the embodiment of the invention one hold-down mechanism when testing button is pressed;
Figure 13 is the structural representation of the embodiment of the invention one latching device and electromagnetic trip mechanism when reset button is located by snap close;
Figure 14 is the structural representation of the embodiment of the invention one hold-down mechanism when reset button is located by snap close;
Structural representation when Figure 15 presses testing button for the embodiment of the invention one under end-of-life status;
Figure 16 is that the embodiment of the invention one is pressed the structural representation of forcing dropout to the second place at testing button;
Figure 17 is the structural representation of the interior basic element of character combination of the housing of the embodiment of the invention two;
Figure 18 is the latching device of the embodiment of the invention two under initial condition and the structural representation of electromagnetic trip mechanism;
Figure 19 is the structural representation of the hold-down mechanism of the embodiment of the invention two under initial condition;
Figure 20 is the structural representation of the embodiment of the invention two latching device and electromagnetic trip mechanism under the reversal connection line states;
Figure 21 is the structural representation of the embodiment of the invention two hold-down mechanism under the reversal connection line states;
Figure 22 is the structural representation of the embodiment of the invention two latching device and electromagnetic trip mechanism when reset button is located by snap close;
Figure 23 is the structural representation of the embodiment of the invention two hold-down mechanism when reset button is located by snap close;
Structural representation when Figure 24 presses testing button for the embodiment of the invention two under end-of-life status;
Figure 25 is that the embodiment of the invention two is pressed the structural representation of forcing dropout to the second place at testing button.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples:
Embodiment one
Referring to figs. 1 through shown in Figure 5, earth leakage protective socket with backing protection function of the present invention, comprise housing, conduct electricity the output conductor (7 of sleeve a pair of having, 8), reset button 3, power input (11,11A), power output end (81,81A), the a pair of input moving contact (13 that links to each other with power input, 14), the a pair of output moving contact (18 that links to each other with power output end, 17) and circuit board 16, housing comprises loam cake 1 and the base 23 that has jack, loam cake is fixedlyed connected with base through screws 24, also be provided with metal ground plate 4 between loam cake and the base, conduction sleeve top arranges retaining device 5, also be provided with in the housing and can and be used for when producing leakage current electromagnetic trip mechanism with the latching device release with the latching device of reset button 3 hooks location, output conductor (7,8) have two pairs be respectively up and down towards fixed contact, have on the output conductor 7 up dead point 7A and fixed contact 7B down, have on the output conductor 8 up dead point 8A and fixed contact 8B(down with reference to Fig. 3, Fig. 4), input moving contact (13,14) be positioned at output conductor fixed contact (7A up, 8A) top, output moving contact (18,17) be positioned at output conductor fixed contact (7B down, 8B) below and Elastic Contact; The reset button adjutage is provided with the hold-down mechanism that input moving contact (13,14) can be contacted conducting with output conductor fixed contact (7A, 8A), input moving contact (13,14) and output conductor (7,8) conducting when reset button 3 is located by latching device.
With reference to Fig. 5, electromagnetic trip mechanism comprises sleeve 19, be located at iron core 12C and the permanent magnet 32 that is positioned at the iron core below in the sleeve 19, be wound with on the sleeve 19 when the reversal connection line produce magnetic field make iron core overcome the input moving contact and the elastic resistance of output moving contact descends and with the solenoid of permanent magnet adhesive, the iron core upper end is provided with follows iron core 12C decline and will export moving contact (18 simultaneously when the reversal connection line, 17) with output conductor (7,8) disconnect, to import moving contact (13,14) contact the bridgeware 12 of conducting with output conductor, the output moving contact that bridgeware 12 made originally and output conductor is normally closed when iron core descended and originally and the output conductor input moving contact state counter-rotating of often opening.
Latching device comprises snap close 29, backing plate 31 and snap close back-moving spring 30, backing plate 31 1 ends are provided with spring base 31A, snap close 29 has that the ammunition feed spring abutment passes and the through hole of snap close back-moving spring 30 activities, be provided with the protruding 29A for suit snap close back-moving spring 30 in the through hole, snap close back-moving spring 30 other ends are resisted against on the spring base 31A of backing plate, snap close 29 and backing plate are stacked about in the of 31, snap close 29 has lockhole 29D, backing plate 31 also can arrange lockhole 31D or a groove that the descending surplus in reset button lead lower end is provided is set, reset button below has lead, reset button lead lower end have can with the groove 3D of snap close lockhole 29D edge hook location.
Bridgeware 12 is provided with a pair of horizontal presser feet 12A and a pair of vertical presser feet 12B, and laterally presser feet 12A is positioned at input moving contact (14,13) top, and vertically presser feet is positioned at output moving contact (18,17) top.
Hold-down mechanism on the reset button adjutage can be the protruding nail integrally formed with the reset button adjutage, and protruding nail is positioned at input moving contact top, and protruding nail will be imported moving contact and contact conducting with output conductor when reset button is located by latching device.The hold-down mechanism of present embodiment is elastic compression mechanism, comprise and have the protruding nail 26 of limited step and protruding nail back-moving spring 35, protruding nail 26 is positioned at input moving contact (13,14) top, the reset button adjutage has protruding nail storage tank 3A, protruding nail storage tank 3A lower end has the through hole that stretches out for protruding nail 26, protruding nail storage tank upper end is provided with the elasticity card base, and protruding nail back-moving spring 35 two ends offset with elasticity card base and protruding nail 26 limited steps respectively, and the elasticity card base also can replace with removable end cap.
Be provided with holder 15 in the housing, holder has the breach 15C for the latching device transverse movement, the iron core sleeve also has the breach for the latching device transverse movement, holder is provided with at least one vertical mounting groove 15A or installing hole, vertically in the mounting groove 15A circuit board power supply terminal is set, the circuit board power supply terminal comprises grafting sheet metal 33 and fixed contact 33B, the circuit board power supply terminal is positioned at input moving contact below, input moving contact (13,14) have at least one pair of and the output conductor moving contact (13A that cooperates of fixed contact up on, 14A), also be provided with the moving contact that cooperates with the moving contact 33B of circuit board power supply terminal on the zero line input moving contact, corresponding up and down, zero line input moving contact and output conductor (7,8) contact time also with the circuit board power supply terminal on fixed contact contact conducting, if the input moving contact does not contact then circuit board and do not work with the circuit board power supply terminal, be in electricity-saving state.Live wire input moving contact below also can arrange the circuit board power supply terminal, but can make circuit board form path because live wire input moving contact is depressed, so this circuit board power supply terminal can save.The circuit board power supply terminal also can the elasticity setting, the circuit board power supply terminal flexible wire that can comprise the sheet metal that has fixed contact, be electrically connected with sheet metal and circuit board respectively with the fixedly connected spring of sheet metal and two ends for example, but sheet metal is together with elevating movement in the vertical mounting groove of power spring holder or the installing hole.
Has fast trip plate 20 on the holder 15, reset button guide holder top is provided with fast trip plate 20, fast trip sheet reset spring 36 is set between fast trip plate 20 and the holder 15, fast trip plate 20 tops arrange output conductor pedestal 6, output conductor pedestal 6 has the through hole 6A that passes for the reset button lead, fast trip plate 20 all has the through hole 20C that passes for the reset button lead, the reset button lead has the limited step 3E that cooperates with fast trip plate 20, fast trip plate 20 is located at reset button lead limited step 3E below, fast trip plate 20 has to be positioned at imports moving contact (13,14) Xia Fang extended stabilizer (20A, 20B), when the detent 3D of reset button lead separates with snap close 29, the extended stabilizer (20A of fast trip plate, 20B) under 36 effects of fast trip sheet reset spring, will import moving contact (13,14) with output conductor (7,8) separate fast.
The reset button side of present embodiment also is provided with by presser feet 3B, circuit board 16 is provided with the channel selector of being made up of moving sheet metal 21 and fixed contact 22, channel selector is electrically connected between power output end and the iron-core coil, moving sheet metal 21 is positioned at fixed contact 22 belows and Elastic Contact, sheet metal 21 tops are moved in being positioned at by presser feet 3B of reset button, when reset button is pressed, will move sheet metal 21 by presser feet 3B and separate with fixed contact 22, and disconnect channel selector K3(and see Fig. 6).The reset button lead lower end of present embodiment has cone-shaped end 3C, and the purpose that cone-shaped end 3C arranges is to make the reset button lead to penetrate swimmingly in the lockhole of snap close.
The earth leakage protective socket of present embodiment also is provided with life-span stop detection mechanism; comprise testing button 2 and Test Switchboard K1; Test Switchboard by all be electrically connected with circuit board moving sheet metal 27 and fixed contact 28 form; the free end of the moving sheet metal 27 of Test Switchboard is positioned at snap close backing plate 31 belows; fixed contact 28 is positioned at moving sheet metal 27 belows; testing button 2 has the testing button lead; the testing button lead is positioned at the spring base 31A top of snap close backing plate 31, and output conductor pedestal 6 and holder 15 are equipped with the through hole that passes for the testing button lead.
With reference to shown in Figure 6, circuit structure of the present invention and application number are that the application for a patent for invention circuit structure of CN200810104187.4 is similar, input moving contact (13,14) form normal open switch (KR2-1 with output conductor, KR2-2), output moving contact (17,18) form normally closed switch (KR3-1 with output conductor, KR3-2), connect normally closed channel selector K3 between power output end LOAD one end and the iron-core coil L3, the input moving contact passes two induction coil (L1, L2), two induction coil (L1, L2) form control loop by integrated chip IC1 and accessory circuit.Power output end LOAD is connected with the light-emitting diode V2 as power supply indicator, up and down corresponding of reversal connection line indicator cock K4 and an output moving contact, loam cake 1 is provided with power supply indicator light lead lamp installing hole 1A, in addition, is provided with two induction coil mount pads 10 and capping 34 in the housing.
Below introducing this earth leakage protective socket course of work: Fig. 7 and Fig. 8 is factory state; With reference to Fig. 9 and Figure 10; if mistake is received power firestreak and zero-power line respectively on two power output ends when installing; it is the reversal connection line states; the coil L3 that surrounds this moment on the iron core sleeve 19 forms path generation magnetic field; iron core 12C and permanent magnet 32 adhesives; meanwhile; to import moving contact (13 with the bridgeware 12 that iron core is integrally formed; 14) and output moving contact (17; 18) depress simultaneously; make the output moving contact that originally contacts with the output conductor fixed contact disconnect; originally contact with the input moving contact that the output conductor fixed contact disconnects; therefore export moving contact varying motion and wrong indicator light switch closure; the false wiring indicator light is bright; when under this state, pressing reset button 3; because iron core detent 12D lower plane has descended and the magnet adhesive; snap close 29 is passed lockhole and reset guide post and is in line; therefore the detent 3D of reset button lead can't be caught on by the lockhole edge of snap close 29; reset button 3 is upspring under the effect of back-moving spring 36; output conductor and power supply can't be connected, thereby play the effect of reverse-connection protection.
With reference to Figure 11 Figure 12, reaffirm under the correct wiring state at the reversal connection line, earlier testing button is pressed and carried out release, or press reset button interlock testing button with analog detection K switch 1 a closed artificial leakage current make tripping coil produce one with magnet 32 opposing magnetic fields, the suction electromagnetism of magnet weakens the action of off line structure, electromagnetic trip mechanism and reset button are returned initial condition by locking mechanism, see Figure 11 to Figure 12.Power firestreak and zero-power line are received respectively on power input two binding posts 33, the output moving contact contacts with the output conductor fixed contact, input moving contact (13,14) remains open with output conductor (7,8) fixed contact, the output moving contact transfers to and power supply sleeve conductor closure, iron core 12C reposition configuration state, iron core groove 12D is corresponding with snap close 29 head positions, and snap close 29 enters under the effect of snap close back-moving spring 30 in the iron core groove 12D.
With reference to Figure 13,14, press reset button 3, snap close 29 moves towards the direction away from iron core groove 12D under the cone-shaped end conical surface compressing of reset button lead, when the lockhole 29D edge that the reset button lead continues to come downwards to detent 3D and snap close catches on, reset button 3 is positioned, and the hold-down mechanism in reset button descending and when location reset button adjutage will import moving contact (13,14) and contact while channel selector sheet 21 and 22 fixed contacts disconnection K3 with fixed contact and the contact 33B on the circuit board power supply terminal of output conductor (7,8).(shown in Figure 13,14), power input moving contact (13,14) namely connect with output conductor (7,8), the socket operate as normal.When in use producing leakage current, coil L3 gets electric make iron core 12C and permanent magnet 32 motion in the other direction, and iron core 12C groove 12D goes up gradient snap close is passed, and the groove line on lockhole and the lead is in line.Lockhole edge and reset button lead break away from, and reset button drives hold-down mechanism and rises under back-moving spring 36 effects, and input moving contact (13,14) separates with output conductor (7,8), and output conductor namely disconnects with power supply.When getting back to correct wiring state, iron core and permanent magnet keep the certain distance state.
Have at output conductor under the state of power supply output and correct wiring, when whether the user needs the test socket life-span to stop, press testing button 2 separately, if the socket life-span does not stop, then the testing button lead moves down pressurized with backing plate, Test Switchboard K1 closure, power firestreak and zero-power line are directly connected, produce the simulation leakage current, coil L3 gets electric generation magnetic field, iron core 12C moves while snap close 29 in the other direction to magnet and breaks away under the elasticity of input and output moving contact helps with detent 3D, and snap close 29 disengaging iron core maximum positions turn back in the iron core groove 12D, and the user can learn that the socket life-span does not stop.If the socket life-span stops; iron core 12C can't move; snap close 29 still is positioned at iron core groove 12D; still can will be imported moving contact by snap close 29 location when reset button is pressed under this state and output conductor is connected this danger close; press testing button 2 as Figure 15; because the socket life-span stops; the creepage protection function forfeiture; reset button 3 can not be takeoff input moving contact and output conductor are disconnected; user thereby learn that the socket life-span stops; testing button 2 is continued to press to the second place (as shown in figure 16); snap close 29 and snap close backing plate 31 are descending under the effect of testing button lead; backing plate spring back seat rear contra bevel is moved snap close; snap close 29 is simultaneously to left movement; arrive snap close lockhole 29D and reset button lead positions aligning; reset button 3 is takeoff under fast trip plate and spring action; input moving contact (13; 14) upspring and output conductor (7 at the fast trip plate; 8) disconnect and to connect; play the end-of-life protection effect, inform that simultaneously the user will change this product.
Embodiment two
With reference to Figure 17 to Figure 25; present embodiment and embodiment one difference are: the reset button lead lower end of present embodiment has cone-shaped end 3C; the root of cone-shaped end has ring-shaped step; the purpose that cone-shaped end 3C arranges is to make the reset button lead can stop directly and penetrates swimmingly in the lockhole of snap close; and the annular plane can stop that the reset button lead penetrates lockhole under reset button lead and snap close piece lockhole dislocation state, plays the effect of defencive function thereby prevent from being resetted again after the end-of-life.
The earth leakage protective socket of present embodiment arranges life-span stop detection mechanism equally; life-span stop detection mechanism comprises testing button 2 and Test Switchboard; Test Switchboard is made up of the moving sheet metal 27 and the fixed contact 28 that are installed on the circuit board 16; the free end of moving sheet metal 27 is positioned at snap close backing plate 31 belows; fixed contact 28 is positioned at moving sheet metal 27 belows; testing button 2 has the testing button lead, and the testing button lead is positioned at the spring base 31A top of snap close backing plate.The testing button of present embodiment and reset button interlock, reset button has the step of pressing 3H, and testing button has with reset button presses the supporting step 2A that step cooperates, and when reset button 3 was pressed, testing button 2 was followed reset button 3 and is descended.The course of work and the embodiment of present embodiment are similar, and be extremely shown in Figure 25 with reference to Figure 18.
Though the present invention illustrates and describes by the reference preferred embodiment,, those of ordinary skills should understand, and can be not limited to the description of above-described embodiment, in the scope of claims, can do the various variations on form and the details.
Claims (13)
1. the earth leakage protective socket that has backing protection function, comprise housing, conduct electricity the output conductor of sleeve a pair of having, reset button, power input, power output end, the a pair of input moving contact that links to each other with power input, the a pair of output moving contact and the circuit board that link to each other with power output end, also be provided with in the housing and can and be used for when producing leakage current electromagnetic trip mechanism with the latching device release with the latching device of reset button hook location, it is characterized in that: described output conductor have two pairs be respectively up and down towards fixed contact, the input moving contact is positioned at output conductor fixed contact top up, and the output moving contact is positioned at output conductor fixed contact below and Elastic Contact down; Reset button both sides adjutage is provided with the hold-down mechanism that the input moving contact can be contacted conducting with the output conductor fixed contact, input moving contact and output conductor conducting when reset button is located by latching device; Described electromagnetic trip mechanism comprises sleeve, be located at the iron core in the sleeve and be positioned at the permanent magnet of iron core below, be wound with on the sleeve when the reversal connection line produce that magnetic field makes that iron core overcomes input, the elastic resistance of output moving contact descends and with the solenoid of permanent magnet adhesive, the iron core upper end be provided with when the reversal connection line, follow iron core descend and will export simultaneously moving contact with the output conductor disconnection, will import moving contact contacts conducting with output conductor bridgeware; Described bridgeware is provided with a pair of horizontal presser feet and a pair of vertical presser feet, and laterally presser feet is positioned at input moving contact top, and vertically presser feet is positioned at output moving contact top.
2. the earth leakage protective socket with backing protection function as claimed in claim 1, it is characterized in that: described latching device comprises snap close, backing plate and snap close back-moving spring, backing plate one end is provided with spring base, snap close has that the ammunition feed spring abutment passes and the through hole of snap close back-moving spring activity, be provided with the projection for suit snap close back-moving spring in the through hole, the snap close back-moving spring other end is resisted against on the spring base of backing plate; Snap close and backing plate are stacked up and down, and snap close has lockhole, and described reset button below has lead, reset button lead lower end have can with the groove of snap close lockhole edge hook location.
3. the earth leakage protective socket with backing protection function as claimed in claim 2; it is characterized in that: described iron core has the groove with snap fit; described latch under the snap close back-moving spring nature spacing by the iron core groove; it is domatic that inner edge all has transition about the iron core groove, and it is domatic that the snap close limiting section has the transition that cooperates with it.
4. the earth leakage protective socket with backing protection function as claimed in claim 1; it is characterized in that: the hold-down mechanism on the described reset button adjutage is the protruding nail integrally formed with the reset button adjutage; protruding nail is positioned at input moving contact top, and protruding nail will be imported moving contact and contact conducting with output conductor when reset button is located by latching device.
5. the earth leakage protective socket with backing protection function as claimed in claim 1; it is characterized in that: the hold-down mechanism on the described reset button adjutage comprises protruding nail and the protruding nail back-moving spring that has limited step; protruding nail is positioned at input moving contact top; the reset button adjutage has protruding nail storage tank; protruding nail storage tank lower end has the storage tank limited step that the through hole that stretches out for protruding nail and protruding nail limited step cooperate; protruding nail storage tank upper end is provided with the elasticity card base, and protruding nail back-moving spring two ends offset with elasticity card base and protruding nail limited step respectively.
6. as each described earth leakage protective socket with backing protection function of claim 1 to 5; it is characterized in that: be provided with holder in the described housing; holder is provided with at least one vertical mounting groove or installing hole; vertically be provided with the circuit board power supply terminal in mounting groove or the installing hole; input has on the moving contact and the output conductor moving contact that cooperates of fixed contact up, and wherein zero line is imported on the moving contact and also had a moving contact that cooperates with the circuit board power supply terminal.
7. the earth leakage protective socket with backing protection function as claimed in claim 6; it is characterized in that: described circuit board power supply terminal elasticity arranges; the flexible wire that the circuit board power supply terminal comprises the sheet metal that has fixed contact, is electrically connected with sheet metal and circuit board respectively with the fixedly connected spring of sheet metal and two ends, but sheet metal is together with elevating movement in the vertical mounting groove of power spring holder or the installing hole.
8. the earth leakage protective socket with backing protection function as claimed in claim 6; it is characterized in that: the fast trip plate is set on the described holder; fast trip sheet reset spring is set between fast trip plate and the holder; fast trip plate top arranges the output conductor pedestal; output conductor pedestal and fast trip plate all have the through hole that passes for the reset button lead; the reset button lead has the limited step that cooperates with the fast trip plate; the fast trip plate is located at reset button lead limited step below, and the fast trip plate has the extended stabilizer that is positioned at input moving contact below.
9. the earth leakage protective socket with backing protection function as claimed in claim 5; it is characterized in that: the reset button side also is provided with by presser feet; circuit board is provided with the channel selector of being made up of moving sheet metal and fixed contact; channel selector is electrically connected between power output end and the iron-core coil; moving sheet metal is positioned at fixed contact below and Elastic Contact, reset button be positioned at the moving sheet metal top of channel selector by presser feet.
10. as each described earth leakage protective socket with backing protection function of claim 2 to 4; it is characterized in that: also be provided with life-span stop detection mechanism; comprise testing button and Test Switchboard; Test Switchboard is made up of the moving sheet metal and the fixed contact that all are electrically connected with circuit board; the free end of the moving sheet metal of Test Switchboard is positioned at the latching device below; fixed contact is positioned at moving sheet metal below; testing button has the testing button lead; the testing button lead is positioned at the spring base top of snap close backing plate, and output conductor pedestal and holder are equipped with the through hole that passes for the testing button lead.
11. as each described earth leakage protective socket with backing protection function of claim 1 to 4, it is characterized in that: reset button lead lower end has cone-shaped end, and the root of cone-shaped end has ring-shaped step.
12. the earth leakage protective socket with backing protection function as claimed in claim 11 is characterized in that: testing button and reset button interlock, reset button has the step of pressing, and testing button has with reset button presses the supporting step that step cooperates.
13. the earth leakage protective socket with backing protection function as claimed in claim 6 is characterized in that: described holder and iron core sleeve all have the breach for the latching device transverse movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110048951 CN102185222B (en) | 2011-03-01 | 2011-03-01 | Leakage protection socket with reverse wiring protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110048951 CN102185222B (en) | 2011-03-01 | 2011-03-01 | Leakage protection socket with reverse wiring protection function |
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| CN102185222A CN102185222A (en) | 2011-09-14 |
| CN102185222B true CN102185222B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110048951 Active CN102185222B (en) | 2011-03-01 | 2011-03-01 | Leakage protection socket with reverse wiring protection function |
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Families Citing this family (9)
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| CN102509919B (en) * | 2011-10-31 | 2013-08-28 | 黄华道 | Leakage protection socket with inverted wiring protection function |
| CN102801017B (en) * | 2012-08-24 | 2014-08-06 | 黄德富 | Leakage protection socket with sparking preventing function |
| CN103269000B (en) * | 2013-04-28 | 2015-10-21 | 温州市万盛电器有限公司 | There is the improved earth leakage protection socket of backing protection function |
| CN103474298A (en) * | 2013-09-30 | 2013-12-25 | 苏州路美思电气有限公司 | Electric leakage protector |
| CN105337254B (en) * | 2015-11-04 | 2018-04-13 | 余姚市嘉荣电子电器有限公司 | It is a kind of to be provided with automatic power and the earth leakage protective device of power down function |
| CN105356415B (en) * | 2015-11-04 | 2018-03-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device with automatic power and power down function |
| CN106252964B (en) * | 2016-08-31 | 2018-08-14 | 黄金和 | Earth leakage protective socket with backing protection function |
| CN108493061A (en) * | 2018-05-23 | 2018-09-04 | 广东珠电气科技有限公司 | One kind preventing reversed highly reliable leakage circuit breakers |
| CN116994921B (en) * | 2023-10-06 | 2023-12-12 | 中山市格瑞斯电子有限公司 | Leakage protection switch and leakage protection method |
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