CN206179812U - Built -in leakage protection module - Google Patents

Abstract

The utility model provides a built -in leakage protection module, includes base, utensil base chamber, the base, utensil push rod actuating mechanism holds the chamber, circuit board and push rod actuating mechanism, on be stamped reset button and test button, the push rod has the hook plate of restoring to the throne, push rod spring, moving contact mechanism includes first, second moving contact, first, the 2nd terminal outgoing lines, quiet contact mechanism includes first, second static contact, first, the 2nd incoming wire terminal, zero sequence current transformer is connected with the circuit board, the xarm frame, establish at the base intracavity characteristics: there is the push rod hitching leg lower part of push rod, and push rod hitching leg cooperation chamber is established on the upper portion of xarm frame, first, the 2nd terminal outgoing lines fixes with the rear side of upper cover, and first, the 2nd incoming wire terminal fixes with the front side of upper cover, there is first moving contact pressure spring seat in the base left side, and first moving contact pressure spring is established to the seat intracavity, and there is second moving contact pressure spring seat on the right side of base, and second moving contact pressure spring is established to the seat intracavity. Reliable in action. The base is small, convenient wiring and installation, and the device is safe.

Description

Built-in leakage protection module

Technical field

The utility model belongs to low-voltage electrical apparatus technical field of safety devices, and in particular to a kind of built-in earth leakage protective mould Block.

Background technology

Above mentioned built-in concept is referred to and be matched with a state of use power extension socket（Also referred to as " power supply wiring Plate "）Etc electric component in.The technology letter of leakage protecting plug not only can be seen in disclosed Chinese patent literature Breath, and the technical information of earth leakage protective socket can also be seen in, the former collects earth leakage protective mechanism together on plug, is somebody's turn to do to using The electrical appliance of plug plays leakage protection, it is typical as CN203326256U recommend " it is a kind of can the earth leakage protective of waterproof insert " leakage protecting plug that three poles can mutually switch with two poles " and CN104934926A that head ", CN103887660B are provided is introduced " it is a kind of can force thread off earth leakage protective device " and CN106057591A disclose " be suitable to Automated assembly electric leakage protect Shield device structure ", etc..The latter is arranged on earth leakage protective mechanism in power extension socket, i.e., installed in the housing of power extension socket It is interior, it is typical such as CN201369305Y with to playing earth leakage protective effect with the electrical appliance of the power board inserting by plug Recommend " a kind of leakage protection structure ", CN203103249U provide " a kind of earth leakage protective socket trip gear " and " being used in the tripper structure in earth leakage protective device " that CN203721662U is introduced, etc..

By the reading to above-mentioned patent document and with reference to common knowledge：Leakage protecting plug has with strong points The characteristics of, and earth leakage protective socket energy pair is protected with multiple electrical appliances of its inserting, as long as earth leakage protective socket is because of electric leakage And cutting off circuit, then the power supply of all electrical appliances by plug and its inserting is just cut off.The work of earth leakage protective mechanism With being：Under normal circumstances, electric current flow to zero line and forms loop from live wire, and ground wire does not have the electric current of electric current, live wire and zero line It is equal, the magnetic field produced by the two equal electric currents is the structure of aforesaid leakage protection module in earth leakage protective mechanism Repeal by implication on the zero sequence current mutual inductor of system, therefore, the secondary coil influence electricity miscarriage life of zero sequence current mutual inductor；When When there is electric leakage situation, because one part of current is flowed away by ground wire, cause the electric current of live wire more than the electric current of zero line, so that zero The secondary coil of sequence current transformer produces induced-current, and just speed responds simultaneously the electric current Jing after the amplifying circuit of circuit board Cut off the electricity supply, reach the purpose for preventing getting an electric shock.

" tripping mechanism of RCCB " that Chinese patent Authorization Notice No. CN2528101Y recommends can be arranged at aforementioned In the electric component of power extension socket etc, and can objectively cash the technology effect described in the technique effect hurdle of its specification Really（The 5th section of specification text the 1st page）But, there is following shortcoming：First, because push rod is that transverse arm frame is produced by lock Effect, i.e., push rod and transverse arm frame is not directly placed on, thus active force transmission link is more, the stability and reliability of impact action Property；Second, because a pair of input terminals and a pair of outlet terminals are respectively arranged at the two ends of base, thus not only cause base body Product increase, and it is relatively cumbersome by filling；Third, due to the movable contact and the stationary contact of a pair of static contacts of the free end of a pair of moving contacts The separation of point is that the full natural resiliency with a pair of moving contacts is realized in the case where acting on without external force, once thus a pair of moving contacts itself There is tired situation because when is long in elasticity, then movable contact is affected with the separating effect of stationary contact, or even can not divide completely From so as to affecting leakage condition incision deenergizing or even causing security incident.

For above-mentioned prior art, still there is improved necessity, be that this applicant has made beneficial design, will be detailed below being situated between The technical scheme for continuing is produced under this background.

The content of the invention

Task of the present utility model is to provide one kind to contribute to making push rod directly act on transverse arm frame and using reduction and move Make link and improve the Stability and dependability of transverse arm frame action, be conducive to setting electric current input terminal and power outlet terminal Put on upper lid and use the volume for being reduced significantly base and facilitate wiring and install, be beneficial to for moving contact applying external force Use the built-in earth leakage protective mould that the movable contact with the stationary contact reliable separation of static contact of moving contact are ensured in electric leakage situation Block.

What task of the present utility model was performed by, a kind of built-in leakage protection module, including a base, the bottom Seat tool has a base cavity；One pedestal, at the rear portion of base cavity, the pedestal is accommodated the base support with a pushrod actuation mechanism Chamber；One circuit board and a pushrod actuation mechanism, circuit board is fixed in the position of the top corresponding to the pedestal with pedestal, push rod Actuating mechanism is contained in pushrod actuation mechanism accommodating chamber and is connected with circuit board electrical control；One Shang Gai and one is pushed away Bar, on cover and fixed with described base in the position of top corresponding to circuit board, be provided with a SR on lid on this With a test button, SR is corresponding with the top of push rod, and test button is relative with the test button switch on circuit board Should, push rod is arranged up or down on circuit boards, and on the top of the push rod reset hook plate is connected with, and is also arranged on push rod The upper end for having a push rod spring, the push rod spring is bearing on reset hook plate, and lower end supports on circuit boards, the bottom of push rod An armature caulking groove is offered, the armature caulking groove is engaged with described pushrod actuation mechanism；One dynamic contact mechanism, the moving contact machine Structure includes the first moving contact, one second moving contact, one first outlet terminal and one second outlet terminal, the front end of the first moving contact It is configured to free end and the side in the front end towards on and is fixed with one first movable contact, and the rear end of the first moving contact is constituted It is fixedly connected for fixing end and with the first outlet terminal, the front end of the second moving contact is configured to free end and in the front end court Side upwards is fixed with one second movable contact, and the rear end of the second moving contact be configured to fixing end and with the second outlet terminal It is fixedly connected；One static contact mechanism, the static contact mechanism includes the first static contact, one second static contact, one first input terminal With one second input terminal, on the first static contact and in the position of the top corresponding to the first movable contact one first is fixed with Stationary contact, on the second static contact and in the position of the top corresponding to the second movable contact one second stationary contact is fixed with, the One input terminal is connected by the first wire with the first static contact, and the second input terminal is connected by the second wire with the second static contact； One zero sequence current mutual inductor, the zero sequence current mutual inductor is arranged on the anterior of the base cavity and electrically connects with the circuit board Connect, described the first wire and the second wire passes through the transformer centre bore of zero sequence current mutual inductor；One transverse arm frame, the transverse arm frame It is arranged in the base cavity in the position at the rear corresponding to the zero sequence current mutual inductor, and the top of the transverse arm frame is visited Enter pushrod actuation mechanism accommodating chamber, constituting in the bottom of the transverse arm frame has a moving contact trailing arm, a left side for the moving contact trailing arm The front end lower section corresponding to first moving contact is held, and the right-hand member of moving contact trailing arm is corresponding to the front end of second moving contact Lower section, the bottom of the push rod is engaged with transverse arm frame, is characterised by the bottom of the push rod and corresponding to the rank The position of the top of iron caulking groove is extended with a pair symmetrical push rod hanging feets each other, and on the top of the transverse arm frame and court A pair or so corresponding push rod hanging feet mating cavities are offered to the side of push rod, under the pressing SR makes the push rod During row, a pair of push rods hanging feet is entered in a pair of push rods hanging feet mating cavity, and when SR is unclamped, in the push rod spring Under restoring force effect, push rod is up, while drive transverse arm frame up by a pair of push rods hanging feet, described the first movable contact and the Two movable contacts are contacted with described the first stationary contact and the second stationary contact simultaneously, when described pushrod actuation mechanism is corresponding to When the position of the armature caulking groove of push rod makes the bottom of push rod towards the direction displacement for deviating from transverse arm frame, a pair of push rods hanging feet exits one To push rod hanging feet mating cavity, transverse arm frame is descending, the first movable contact and the second movable contact respectively with the first stationary contact and second Stationary contact is separated；Described the first outlet terminal and the second outlet terminal is fixed with the rear side of the upper lid, and described One input terminal and the second input terminal are fixed respectively with the front side of described upper lid；On the left of the pedestal and in correspondence Constituting in the position at the middle part of first moving contact has one first moving contact force application spring seat, in the first moving contact force bullet One first moving contact force application spring is provided with first moving contact force application spring seat chamber of spring abutment, the first moving contact force application spring Upper end be bearing on the chamber roof in the first moving contact force application spring seat chamber, and lower end is bearing in the first moving contact towards upper one The middle part of side, constituting on the right side of pedestal and in the position at the middle part corresponding to second moving contact has one second moving contact Force application spring seat, is provided with one second dynamic tactile in the second moving contact force application spring seat chamber of the second moving contact force application spring seat Head force application spring, the upper end of the second moving contact force application spring is bearing on the chamber roof in the second moving contact force application spring seat chamber, And lower end is bearing in the second moving contact towards the middle part of upper side.

In a specific embodiment of the present utility model, one is respectively formed with the outer wall of the left and right sides of the base Base tab, and respectively it is formed with one on the outer wall of the left and right sides covered on described and in the position corresponding to base tab Base tab mating flanges, the base tab mating flanges are engaged with base tab；The edge on the rear end of base Middle part is formed with an outlet terminal lead-out wire resigning groove, and the front end lower edge covered on described offers a pair of input terminal wiring Pin slot to make way.

In another specific embodiment of the present utility model, the pedestal towards on side and positioned at four Corner is respectively extended with a pedestal pin, and on described circuit board and in the position corresponding to pedestal pin a base is respectively offered Seat pin holes, pedestal pin and pedestal pin holes inserting；Pass through cavity dividing plate in the front of pushrod actuation mechanism accommodating chamber Every a transverse arm frame chamber is provided with, the top of the transverse arm frame probes into transverse arm frame chamber, an armature resigning hole is offered on cavity dividing plate, The pair of push rod hanging feet for being formed in the bottom of the push rod enters described a pair of push rods hanging feet cooperation in transverse arm frame chamber A pair of push rods hanging feet mating cavity is exited in chamber, and the armature caulking groove of push rod bottom is in the position corresponding to the armature resigning hole It is engaged with the pushrod actuation mechanism being arranged in pushrod actuation mechanism accommodating chamber.

In another specific embodiment of the present utility model, on the top of the transverse arm frame and towards the push rod Side constitute and have a push rod mating cavity, it is in the left end and right-hand member of the bottom of chamber wall of the push rod mating cavity and same towards push rod Side is respectively constituted has one for guiding described a pair of push rods hanging feet into described a pair of push rods hanging feet mating cavity or exiting one Push rod hanging feet guiding incline to heap bar hanging feet mating cavity.

In another specific embodiment of the present utility model, offer a reseting hook on the top of the push rod and draw Hole, constituting on described reset hook plate has a reseting hook, draws by the reseting hook and draws hole and the hook plate that will reset in reseting hook Fix with the top of push rod.

In an also specific embodiment of the present utility model, described pushrod actuation mechanism is including a coil Frame, a coil and an armature, coil brace is contained in described pushrod actuation mechanism accommodating chamber, and coil winding is in coil brace Middle part and with circuit board electrical connection, armature is arranged in the armature chamber in the middle part of coil brace, the front end of the armature Through the front side for being opened in coil brace coil brace armature resigning hole and be stretched over bottom corresponding to the push rod The position of armature caulking groove, is arranged with an armature spring on the armature, and one end of the armature spring is bearing in the armature bullet of armature On spring supporting step, and the other end is bearing on coil brace, in the front end of the armature and embedding corresponding to the armature The position of groove is constituted an armature draw-in groove, and described armature caulking groove is matched somebody with somebody in the position corresponding to armature draw-in groove with the front end of armature Close.

Of the present utility model more and in a specific embodiment, constituting on the front side outer wall of the pedestal has one the One static contact inserts build-in reservation and one second static contact inserts build-in reservation, and the first described static contact inserts build-in and is scheduled on the first stationary contact In slotting build-in reservation, and the second described static contact inserts build-in and is scheduled on the second static contact and inserts in build-in reservation, and first, second is quiet Space between contact is configured to pressing plate trailing arm mating groove.

In an of the present utility model and then specific embodiment, the middle position on edge is opened on the front side of the pedestal If to there is a pressing plate projection mating cavity, a pressing plate is equipped with front side of pedestal by means of the pressing plate projection mating cavity, the pressure Plate is made up of a pressing plate transverse arm, a pressing plate trailing arm and a pressing plate projection, pressing plate projection be formed in the rear side of pressing plate transverse arm and with Described pressing plate projection mating cavity coordinates, and the left end lower surface of pressing plate transverse arm is close to the upper surface of first static contact, and The right-hand member lower surface of pressing plate transverse arm is close to the upper surface of second static contact, and pressing plate trailing arm inserts the pressing plate trailing arm and coordinates Groove, the left surface of the pressing plate trailing arm is close to the right flank of the first static contact, and the right flank of pressing plate trailing arm and the second static contact Left surface be close to.

Of the present utility model and more and in a specific embodiment, on the front side outer wall covered on described one is extended with First input terminal fixed seat and one second input terminal fixed seat, the first described input terminal is fixed with the first input terminal Seat is fixed, and the second described input terminal is fixed with the second input terminal fixed seat, and on the rear side outer wall of upper lid one is extended with First outlet terminal fixed seat and one second outlet terminal fixed seat, the first described outlet terminal is fixed with the first outlet terminal Seat is fixed, and the second described outlet terminal is fixed with the second outlet terminal fixed seat.

It is of the present utility model and and then a specific embodiment in, be provided with an indicator lamp on described upper lid, The indicator lamp is electrically connected with the circuit board.

The technical scheme that the utility model is provided relative to prior art one of technique effect, due in the bottom of push rod Being formed with a pair of push rods hanging feet and constituting on the top of transverse arm frame has a pair of push rods hanging feet mating cavity, thus without in Push rod directly can be engaged with transverse arm frame in the case of transition member, can both reduce action transmission link, transverse arm can be improved again The Reliability of Microprocessor and stability of frame；Two, due to first, second input terminal and first, second outlet terminal being arranged On upper lid, thus the volume of base not only can be reduced, and contribute to facilitating wiring and installing；Three, due in pedestal Left and right sides be respectively provided with first, second moving contact force application spring seat, and be respectively provided with thereon dynamic with first, second First, second moving contact force application spring of contacts mates, thus in electric leakage situation, can ensure that first, second movable contact and First, the second static contact is separated and cuts off circuit, is guaranteed safety.

Description of the drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is the enlarged drawing of the pushrod actuation mechanism shown in Fig. 1.

Fig. 3 is application examples schematic diagram of the present utility model.

Specific embodiment

In order to be more clearly understood from technical spirit of the present utility model and beneficial effect, applicant is below with reality The mode for applying example elaborates, but to the description of embodiment is not the restriction to the utility model scheme, any foundation The done only pro forma rather than substantial equivalent transformation of the utility model design is regarded as of the present utility model Technical scheme category.

It is every in the following description to be related to upper and lower, left and right, the directionality of front and rear or claim being both for for directionality For the figure location state being described, thus the technical side provided the utility model can not be understood as Case is particularly limited to.

Fig. 1 is referred to, a base 1 by made by plastics are by mould is shown, the base 1 has a base cavity 11；Show A same pedestal 2 by made by plastics are by mould is gone out, the pedestal 2 is bearing in the rear portion of base cavity 11, and the pedestal 2 has one Pushrod actuation mechanism accommodating chamber 21；Show a circuit board 3 and a pushrod actuation mechanism 4（Also can claim " tripping mechanism ", below Together）, circuit board 3 fixes in the position of top corresponding to aforementioned pedestal 2 with pedestal 2, and pushrod actuation mechanism 4 is contained in aforementioned pushing away It is connected in bar actuating mechanism accommodating chamber and with the electrical control of circuit board 3；Show still by plastics by made by mould one The push rod 6 of upper lid 5 and, upper lid 5 is fixed in the position of the top corresponding to circuit board 3 with aforesaid base 1, on this on lid 5 Be provided with a SR 51 and a test button 52, SR 51 is corresponding with the top of push rod 6, test button 52 with electricity Test button switch 31 on road plate 3 is corresponding, and push rod 6 is in the position corresponding to the push rod sliding eye 33 being opened on circuit board 3 Put and be arranged on up or down on circuit board 3, on the top of the push rod 6 a reset hook plate 61 is connected with, be also arranged on push rod 6 The upper end for having a push rod spring 62, the push rod spring 62 is bearing on reset hook plate 61, and lower end is bearing on circuit board 3, is pushed away The bottom of bar 6 offers an armature caulking groove 63, and the armature caulking groove 63 is engaged with aforesaid pushrod actuation mechanism 4；Show one Dynamic contact mechanism 7, the dynamic contact mechanism 7 includes the first moving contact 71, one second moving contact 72, one first outlet terminal 73 and Second outlet terminal 74, the front end of the first moving contact 71 is configured to free end and the side in the front end towards on and is fixed with one First movable contact 711, and the rear end of the first moving contact 71 is configured to fixing end and is fixedly connected with the first outlet terminal 73, the The front end of two moving contacts 72 is configured to free end and the side in the front end towards on and is fixed with one second movable contact 721, and The rear end of the second moving contact 72 is configured to fixing end and is fixedly connected with the second outlet terminal 74；Show a static contact mechanism 8, the static contact mechanism 8 includes the first static contact 81, one second static contact 82, one first input terminal 83 and one second end of incoming cables Son 84, on the first static contact 81 and in the position of the top corresponding to the first movable contact 711 one first stationary contact is fixed with 811, it is fixed with one second stationary contact on the second static contact 82 and in the position of the top corresponding to the second movable contact 721 821, the first input terminal 83 is connected by the first wire 831 with the first static contact 81, and the second input terminal 84 is by the second wire 841 It is connected with the second static contact 82；A zero sequence current mutual inductor 10 is shown, the zero sequence current mutual inductor 10 is arranged on said base Chamber 11 anterior and it is electrically connected by a pair of current transformer lead-out wires 102 and aforementioned circuit plate 3, aforesaid first wire 831 and second wire 841 through zero sequence current mutual inductor 10 transformer centre bore 101；Show a transverse arm frame 9, the transverse arm Frame 9 is arranged in said base chamber 11 in the position at the rear corresponding to aforementioned zero sequence current mutual inductor 10, and the transverse arm frame 9 Top probe into aforementioned pushrod actuation mechanism accommodating chamber 21, the transverse arm frame 9 bottom constitute have a moving contact trailing arm 91, this move The left end of contact trailing arm 91 corresponds to the front end lower section of aforementioned first moving contact 71, and the right-hand member of moving contact trailing arm 91 is corresponding to front The front end lower section of the second moving contact 72 is stated, the bottom of aforementioned push rod 6 is engaged with the top of transverse arm frame 9.

The technical essential of the technical scheme provided as the utility model：In the bottom of aforementioned push rod 6 and corresponding to The position of the top of aforementioned armature caulking groove 63 is extended with a pair symmetrical push rod hanging feets 64 each other, and in aforementioned transverse arm frame 9 Top and offer a pair or so corresponding push rod hanging feet mating cavities 92 towards the side of push rod 6, when pressing foregoing reset When button 51 makes aforementioned push rod 6 descending, a pair of push rods hanging feet 64 is entered in a pair of push rods hanging feet mating cavity 92, and is resetted when unclamping During button 51, under the restoring force effect of aforementioned push rod spring 62, push rod 6 is up, while driving horizontal stroke by a pair of push rods hanging feet 64 Arm support 9 is up, and aforesaid first movable contact 711 is contacted with the first stationary contact 811, at the same aforesaid second movable contact 721 with it is front The second stationary contact 821 stated is contacted, when aforesaid pushrod actuation mechanism 4 makes in the position of the armature caulking groove 63 corresponding to push rod 6 When the bottom of push rod 6 is towards the direction displacement for deviating from transverse arm frame 9, a pair of push rods hanging feet 64 exits a pair of push rods hanging feet mating cavity 92, transverse arm frame 9 is naturally descending to fall, and the first movable contact 711 is separated with the first stationary contact 811, at the same the second movable contact 721 with Second stationary contact 821 is separated；The outlet terminal 74 of aforesaid first outlet terminal 73 and second is consolidated with the rear side of aforementioned upper lid 5 It is fixed, and the input terminal 84 of aforesaid first input terminal 83 and second is fixed respectively with the front side of aforesaid upper lid 5；Aforementioned Constituting on the left of pedestal 2 and in the position at the middle part corresponding to aforementioned first moving contact 71 has one first moving contact force application spring seat 22, it is provided with one first moving contact in the first moving contact force application spring seat chamber 221 of the first moving contact force application spring seat 22 Force application spring 2211, the upper end of the first moving contact force application spring 2211 is bearing in the first moving contact force application spring seat chamber 221 On the roof of chamber, and lower end is bearing in middle part of first moving contact 71 towards upper side, on the right side of pedestal 2 and is corresponding to The position at the middle part of aforementioned second moving contact 72 is constituted one second moving contact force application spring seat 23, in the second moving contact force One second moving contact force application spring 2311 is provided with second moving contact force application spring seat chamber 231 of spring base 23, this second is moved The upper end of contact force application spring 2311 is bearing on the chamber roof in the second moving contact force application spring seat chamber 231, and lower end is bearing in Middle part of second moving contact 72 towards upper side.

Continue to see Fig. 1, a base tab 12 is respectively formed with the outer wall of the left and right sides of said base 1, and aforementioned A base tab is formed with the outer wall of the left and right sides of upper lid 5 and respectively in the position corresponding to base tab 12 coordinate convex Edge 53, the base tab mating flanges 53 are engaged with base tab 12；It is formed with the middle part of edge on the rear end of base 1 One outlet terminal lead-out wire resigning groove 13, the front end lower edge of lid 5 offers a pair of input terminal wiring pins and steps down on aforementioned Groove 54.

As shown in Figure 1, also respectively constituting in the front end and rear end of said base 1 has a pair of base fixing screws seats 14, Base fixing screws 141 are equipped on base fixing screws seat 14, and in the front end and rear end of upper lid 5 and corresponding to one There is lid fixing screws seat 59b on a pair to each composition the in position of base fixing screws seat 14, base fixing screws 141 are solid with upper lid Determine screw base 59b to fix.The power board on upper lid 5 illustrated in Fig. 1 be connected post 59c for and dragging shown in Fig. 3 Line plate 20 is fixed.

Side in aforementioned pedestal 2 towards on and a pedestal pin 24 is respectively extended with positioned at four corners, aforesaid A pedestal pin holes 32, pedestal pin 24 and pedestal are respectively offered on circuit board 3 and in the position corresponding to pedestal pin 24 The inserting of pin holes 32；In the front of aforementioned pushrod actuation mechanism accommodating chamber 21 by cavity dividing plate 211 every being provided with a transverse arm frame chamber 212, the top of aforementioned transverse arm frame 9 probes into transverse arm frame chamber 212, and an armature resigning hole 2111, structure are offered on cavity dividing plate 211 Aforesaid a pair of push rods hanging feet is entered in transverse arm frame chamber 212 into the aforementioned a pair of push rods hanging feet 64 in the bottom of aforementioned push rod 6 Mating cavity 92 exits a pair of push rods hanging feet mating cavity 92, and the aforementioned armature caulking groove 63 of the bottom of push rod 6 is corresponding to aforementioned armature The position of resigning hole 2111 is engaged with the aforementioned pushrod actuation mechanism 4 being arranged in aforementioned pushrod actuation mechanism accommodating chamber 21. Because a pair of push rods hanging feet 64 of the bottom of push rod 6 is in transverse arm frame chamber 212 and a pair of push rods hanging feet on the top of transverse arm frame 9 Mating cavity 92 is engaged or releases what is coordinated（Fasten or engaging lifting）, thus transverse arm frame chamber 212 alternatively referred to as latches chamber.

Continue to see Fig. 1, on the top of aforementioned transverse arm frame 9 and towards aforementioned push rod 6 side constitute have a push rod coordinate , there is a use in chamber 93 in each composition of left end and right-hand member and the same side towards push rod 6 of the bottom of chamber wall of the push rod mating cavity 93 In guiding aforesaid a pair of push rods hanging feet 64 into aforesaid a pair of push rods hanging feet mating cavity 92 or exit a pair of heap bar hanging feets and match somebody with somebody Close the push rod hanging feet guiding incline 931 in chamber 92.

As shown in Figure 1, offer a reseting hook on the top of aforementioned push rod 6 and draw hole 65, on aforesaid reset hook plate 61 Composition has a reseting hook 611, draws by the reseting hook 611 and draws hole 65 in reseting hook and reset hook plate 61 is upper with push rod 6 Portion is fixed.

Ask for an interview Fig. 2 and combine Fig. 1, aforesaid pushrod actuation mechanism 4 includes a coil brace 41, a coil 42 and a rank Iron 43, the shape of coil brace 41 is contained in aforesaid pushrod actuation mechanism accommodating chamber 21, line generally in H fonts Enclose 42 windings and be electrically connected at the middle part of coil brace 41 and with aforementioned circuit plate 3, armature 43 is arranged in coil brace 41 In the armature chamber in portion, the front end of the armature 43 passes through the coil brace armature resigning hole 411 of the front side for being opened in coil brace 41 And the position of the armature caulking groove 63 of the bottom corresponding to aforementioned push rod 6 is stretched over, an armature bullet is arranged with the armature 43 Spring 431, one end of the armature spring 431 is bearing on the armature spring of armature 43 supporting step 432, and other end supporting is online On coil support 41, constituting in the front end of aforementioned armature 43 and in the position corresponding to aforementioned armature caulking groove 63 has an armature draw-in groove 433, aforesaid armature caulking groove 63 coordinates in the position corresponding to armature draw-in groove 433 with the front end of armature 43.

By press test button 52, when coil 42 is powered, armature 43 to armature chamber intrinsic displacement, due under push rod 6 Portion is engaged by armature caulking groove 63 with armature draw-in groove 433, thus by armature 43 under the reaction force for overcoming armature spring 431 Drive the direction displacement of the bottom of push rod 6 to coil brace 41（Swing）, make previously to match with a pair of push rods hanging feet mating cavity 92 A pair of push rods hanging feet 64 of conjunction exits a pair of push rods hanging feet mating cavity 92.Transverse arm frame 9 now is descending, and moving contact trailing arm 91 is no longer Active force upwards is produced to the front end of first, second moving contact 71,72, in the natural resiliency of first, second moving contact 71,72 In the presence of, at the same force first under the restoring force effect of aforementioned first, second moving contact force application spring 2211,2311, the First, second moving contact 711,721 on two moving contacts 71,72 is respectively with the first, second of first, second static contact 81,82 Stationary contact 811,821 is separated, and faulty circuit is cut off.Fixing a breakdown as found out the reason for causing electric leakage and eliminating electric leakage After reason, SR 5 is pressed by user, specifically by following explanation.

When SR 51 is pressed, the top of push rod 6 is acted on by the SR haptic element of SR 51, make push rod 6 Descending, push rod spring 62 compresses and energy storage, when push rod 6 is descending, the push rod guiding incline of the push rod mating cavity 93 of Jing transverse arms frame 9 A pair of push rods of the bottom of push rod 6 is pushed away pin 64 by 931 to be imported in a pair of push rods hanging feet mating cavity 92.Then when the finger of operator is released Put（Leave）During SR 51, push rod 6 is set to reset under the restoring force effect of push rod spring 62（It is i.e. up）, due to now A pair of push rods hanging feet 64 is in push rod hanging feet mating cavity 92, therefore when push rod 6 is up, transverse arm frame 9 is also up, by transverse arm frame The moving contact trailing arm 91 of 9 bottoms will be lifted on the front end of first, second moving contact 71,72 simultaneously, make the first movable contact 711 and first Stationary contact 811 is contacted, while the second movable contact 721 is contacted with the second stationary contact 821, circuit ON.

As shown in Figure 1, constituting on the front side outer wall of aforementioned pedestal 2 has one first static contact to insert build-in reservation 25 and 1 the Two static contacts insert build-in reservation 26, and aforesaid first static contact 81 is inserted build-in and is scheduled in the first static contact slotting build-in reservation 25, and Aforesaid second static contact 82 is inserted build-in and is scheduled in the second static contact slotting build-in reservation 26, between first, second static contact 81,82 Space be configured to pressing plate trailing arm mating groove 29.

Preferably, the middle position on edge is opened up to there is a pressing plate projection mating cavity 27 on the front side of aforementioned pedestal 2, by A pressing plate 28 is equipped with the front side of pedestal 2 in the pressing plate projection mating cavity 27, the pressing plate 28 is by a pressing plate transverse arm 281, The pressing plate projection 283 of pressing plate trailing arm 282 and is constituted, pressing plate projection 283 be formed in the rear side of pressing plate transverse arm 281 and with it is aforesaid Pressing plate projection mating cavity 27 coordinates, and the left end lower surface of pressing plate transverse arm 281 is close to the upper surface of aforementioned first static contact 81, and The right-hand member lower surface of pressing plate transverse arm 281 is close to the upper surface of aforementioned second static contact 82, the insertion aforementioned platens of pressing plate trailing arm 282 Trailing arm mating groove 29, the left surface of the pressing plate trailing arm 282 is close to the right flank of the first static contact 81, and pressing plate trailing arm 282 Right flank is close to the left surface of the second static contact 82.

As shown in Figure 1, one first input terminal fixed seat 55 and one second is extended with the front side outer wall of lid 5 on aforementioned Input terminal fixed seat 56, aforesaid first input terminal 83 is fixed with the first input terminal fixed seat 55, and aforesaid second enters Line terminals 84 are fixed with the second input terminal fixed seat 56, one first outlet terminal is extended with the rear side outer wall of upper lid 5 and is consolidated The outlet terminal fixed seat 58 of reservation 57 and 1 second, the outlet terminal fixed seat 57 of aforesaid first outlet terminal 73 and first is consolidated Fixed, aforesaid second outlet terminal 74 is fixed with the second outlet terminal fixed seat 58.

An indicator lamp 59a is provided with lid 5 on aforesaid, indicator lamp 59a is electrically connected with aforementioned circuit plate 3.

As shown in Figure 1, the first input terminal wiring pin of one end of aforementioned first wire 831 and the first input terminal 83 832 electrical connections, and the other end of first wire 831 through after aforesaid transformer centre bore 101 with the first static contact 81 Electrical connection, one end of aforesaid second wire 841 is electrically connected with the second input terminal wiring pin 842, and second wire 841 other end is electrically connected after through transformer centre bore 101 with the second static contact 82.

When there is electric leakage situation, through aforementioned first wire of the transformer centre bore 101 of zero sequence current mutual inductor 10 831（It is assumed to be live wire）And second wire 841（It is assumed to be zero line）Current phasor and be not equal to zero, zero sequence current mutual inductor 10 generation induced-currents are simultaneously exported to circuit board 3, and the loop on circuit board 3 is connected, coil 42（That is solenoid）There is electric current stream Cross, produce magnetic field and inhale moving armature 43.Exit by a pair of push rods hanging feet 64 of the applicant bottom for making push rod 6 described above （Leave）A pair of push rods hanging feet mating cavity 92, faulty circuit disjunction.Because the circuit of the circuit board 3 for referring to repeatedly above belongs to Conventional and simple known technology, and the patent document that refers to referring also to the superincumbent background technology hurdle of applicant and CN102684148B（A kind of earth leakage protective device with expanded function）Etc., thus applicant repeats no more.

Fig. 3 is referred to, a power board 20 is figure 3 illustrates（Also referred to as " terminal plate "）, the built-in electric leakage of the utility model Protection module is arranged on the head 201 of power board 20, power line 30 introduce the head of power board 20 and Jing after power switch 202 with First, second input terminal of the present utility model 83,84 electrically connect, first, second outlet terminal 73,74 respectively by lead with drag Socket 203 on line plate 20 connects.Applicant it should be noted that：The utility model is not limited to answering on power board 20 With, it may also be used for the electric component of other similar types.

In sum, the technical scheme that the utility model is provided compensate for the shortcoming in prior art, favorably accomplish Invention task, has faithfully cashed the technique effect referred in the superincumbent technique effect hurdle of applicant.

Claims (10)

1. a kind of built-in leakage protection module, an including base (1), the base (1) is with a base cavity (11)；One pedestal (2), the pedestal (2) is bearing in the rear portion of base cavity (11), and the pedestal (2) is with pushrod actuation mechanism accommodating chamber (21)；One Circuit board (3) and a pushrod actuation mechanism (4), position and pedestal of the circuit board (3) in the top corresponding to the pedestal (2) (2) fixed, pushrod actuation mechanism (4) is contained in pushrod actuation mechanism accommodating chamber (21) and electric with circuit board (3) Control connection；(5) and a push rod (6), position and described bottom of the upper lid (5) in the top corresponding to circuit board (3) are covered on one Seat (1) is fixed, covers on this and a SR (51) and a test button (52) are provided with (5), SR (51) with push away The top of bar (6) is corresponding, and test button (52) is corresponding with test button switch (31) on circuit board (3), on push rod (6) Under be movably arranged on circuit board (3), be connected with a reset hook plate (61) on the top of the push rod (6), on push rod (6) also A push rod spring (62) is arranged with, the upper end of the push rod spring (62) is bearing on reset hook plate (61), and lower end is bearing in electricity On road plate (3), the bottom of push rod (6) offers an armature caulking groove (63), the armature caulking groove (63) and described pushrod actuation machine Structure (4) is engaged；One dynamic contact mechanism (7), the dynamic contact mechanism (7) includes the first moving contact (71), one second moving contact (72), one first outlet terminal (73) and one second outlet terminal (74), the front end of the first moving contact (71) is configured to free end And one first movable contact (711) is fixed with side of the front end towards on, and the rear end of the first moving contact (71) is configured to Fixing end and it is fixedly connected with the first outlet terminal (73), the front end of the second moving contact (72) is configured to free end and at this Front end is fixed with one second movable contact (721) towards upper side, and the rear end of the second moving contact (72) is configured to fixing end simultaneously And be fixedly connected with the second outlet terminal (74)；One static contact mechanism (8), the static contact mechanism (8) is including the first static contact (81), one second static contact (82), one first input terminal (83) and one second input terminal (84), in the first static contact (81) Above and in the position of the top corresponding to the first movable contact (711) one first stationary contact (811) is fixed with, in the second static contact (82) one second stationary contact (821), the first inlet wire are fixed with and in the position of the top corresponding to the second movable contact (721) Terminal (83) is connected by the first wire (831) with the first static contact (81), the second input terminal (84) by the second wire (841) with Second static contact (82) connects；One zero sequence current mutual inductor (10), the zero sequence current mutual inductor (10) is arranged on the base cavity (11) anterior and with the circuit board (3) electrical connection, described the first wire (831) and the second wire (841) pass through The transformer centre bore (101) of zero sequence current mutual inductor (10)；One transverse arm frame (9), the transverse arm frame (9) is corresponding to the zero sequence The position at the rear of current transformer (10) is arranged in the base cavity (11), and the top of the transverse arm frame (9) probes into institute Pushrod actuation mechanism accommodating chamber (21) is stated, constituting in the bottom of the transverse arm frame (9) has a moving contact trailing arm (91), the moving contact support The left end of arm (91) corresponds to the front end lower section of first moving contact (71), and the right-hand member of moving contact trailing arm (91) corresponds to institute The front end lower section of the second moving contact (72) is stated, the bottom of the push rod (6) is engaged with transverse arm frame (9), it is characterised in that in institute State push rod (6) bottom and corresponding to the armature caulking groove (63) top position be extended with a pair it is symmetrical each other Push rod hanging feet (64), and on the top of the transverse arm frame (9) and towards push rod (6) side offer a pair or so correspondence Push rod hanging feet mating cavity (92), when pressing the SR (51) and making the push rod (6) descending, a pair of push rods hanging feet (64) in a pair of push rods hanging feet mating cavity (92), and when SR (51) are unclamped, in the push rod spring (62) Under restoring force effect, push rod (6) is up, while driving transverse arm frame (9) up by a pair of push rods hanging feet (64), described first is dynamic Contact (711) and the second movable contact (721) with described the first stationary contact (811) and the second stationary contact (821) while connect Touch, when described pushrod actuation mechanism (4) makes the bottom of push rod (6) in the position of the armature caulking groove (63) corresponding to push rod (6) When the direction displacement for deviating from transverse arm frame (9), a pair of push rods hanging feet (64) exits a pair of push rods hanging feet mating cavity (92), transverse arm Frame (9) is descending, the first movable contact (711) and the second movable contact (721) respectively with the first stationary contact (811) and the second stationary contact Point (821) is separated；Described the first outlet terminal (73) and the second outlet terminal (74) is consolidated with the rear side of the upper lid (5) It is fixed, and described the first input terminal (83) and the second input terminal (84) are fixed respectively with the front side of described upper lid (5)； Constituting in the pedestal (2) left side and in the position at the middle part corresponding to first moving contact (71) has one first moving contact Force application spring seat (22), sets in the first moving contact force application spring seat chamber (221) of first moving contact force application spring seat (22) One first moving contact force application spring (2211) is equipped with, the upper end of first moving contact force application spring (2211) is bearing in first and moves tactile On the chamber roof of head force application spring seat chamber (221), and lower end is bearing in middle part of the first moving contact (71) towards upper side, The right side of pedestal (2) and corresponding to second moving contact (72) middle part position constitute have one second moving contact exert a force Spring base (23), is provided with the second moving contact force application spring seat chamber (231) of second moving contact force application spring seat (23) One second moving contact force application spring (2311), the upper end of second moving contact force application spring (2311) is bearing in the second moving contact and applies On the chamber roof of power spring cavity (231), and lower end is bearing in middle part of the second moving contact (72) towards upper side.

2. built-in leakage protection module according to claim 1, it is characterised in that in the left and right sides of the base (1) Respectively it is formed with a base tab (12) on outer wall, and on the outer wall of the left and right sides for covering (5) on described and the bottom of corresponding to Seat tab (12) position be respectively formed with base tab mating flanges (53), base tab mating flanges (53) with Base tab (12) is engaged；An outlet terminal lead-out wire resigning groove is formed with the middle part of edge on the rear end of base (1) (13) the front end lower edge for, (5) being covered on described offers a pair of input terminals wiring pin slot to make way (54).

3. built-in leakage protection module according to claim 1, it is characterised in that in the pedestal (2) towards upper Side and a pedestal pin (24) is respectively extended with positioned at four corners, on described circuit board (3) and corresponding to pedestal The position of pin (24) respectively offers a pedestal pin holes (32), pedestal pin (24) and pedestal pin holes (32) inserting；Institute The front of pushrod actuation mechanism accommodating chamber (21) is stated by cavity dividing plate (211) every being provided with a transverse arm frame chamber (212), the transverse arm The top of frame (9) probes into transverse arm frame chamber (212), and an armature resigning hole (2111) is offered on cavity dividing plate (211), is formed in The pair of push rod hanging feet (64) of the bottom of the push rod (6) is hung in transverse arm frame chamber (212) into described a pair of push rods Pin mating cavity (92) exits a pair of push rods hanging feet mating cavity (92), and the armature caulking groove (63) of push rod (6) bottom is in correspondence Cause with the push rod being arranged in pushrod actuation mechanism accommodating chamber (21) in the position of the armature resigning hole (2111) Motivation structure (4) is engaged.

4. the built-in leakage protection module according to claim 1 or 3, it is characterised in that in the upper of the transverse arm frame (9) Portion and towards the push rod (6) side constitute have a push rod mating cavity (93), in the bottom of chamber wall of the push rod mating cavity (93) Left end and right-hand member and the same side towards push rod (6) respectively constitute and have one for guiding described a pair of push rods hanging feet (64) Into described a pair of push rods hanging feet mating cavity (92) or exit the push rod hanging feet guiding incline of a pair of heaps bar hanging feet mating cavity (92) (931)。

5. built-in leakage protection module according to claim 1, it is characterised in that open up on the top of the push rod (6) There is a reseting hook to draw hole (65), constituting on described reset hook plate (61) has a reseting hook (611), by the reseting hook (611) draw and draw hole (65) in reseting hook and fix reset hook plate (61) with the top of push rod (6).

6. built-in leakage protection module according to claim 3, it is characterised in that described pushrod actuation mechanism (4) bag A coil brace (41), a coil (42) and an armature (43) are included, coil brace (41) is contained in described pushrod actuation mechanism In accommodating chamber (21), coil (42) winding is electrically connected at the middle part of coil brace (41) and with the circuit board (3), armature (43) it is arranged in the armature chamber in the middle part of coil brace (41), the front end of the armature (43) passes through and is opened in coil brace (41) Coil brace armature resigning hole (411) of front side and it is stretched over the armature caulking groove (63) of bottom corresponding to the push rod (6) Position, be arranged with an armature spring (431) on the armature (43), one end of the armature spring (431) is bearing in armature (43) on armature spring supporting step (432), and the other end is bearing on coil brace (41), before the armature (43) Holding and constituting in the position corresponding to the armature caulking groove (63) has an armature draw-in groove (433), described armature caulking groove (63) Coordinate with the front end of armature (43) in the position corresponding to armature draw-in groove (433).

7. built-in leakage protection module according to claim 1, it is characterised in that in the front side outer wall of the pedestal (2) Upper composition has one first static contact to insert build-in reservation (25) and slotting build-in reservation (26) of one second static contact, the first described stationary contact Head (81) inserts build-in and is scheduled on the first static contact and inserts on build-in reservation (25), and described the second static contact (82) inserts build-in and is scheduled on the Two static contacts are inserted on build-in reservation (26), and the space between first, second static contact (81,82) is configured to pressing plate trailing arm mating groove (29)。

8. built-in leakage protection module according to claim 7, it is characterised in that the edge on the front side of the pedestal (2) Middle position open up to there is pressing plate projection mating cavity (27), by means of pressing plate projection mating cavity (27) in pedestal (2) Front side be equipped with a pressing plate (28), the pressing plate (28) is convex by a pressing plate transverse arm (281), a pressing plate trailing arm (282) and a pressing plate Block (283) constitute, pressing plate projection (283) be formed in the rear side of pressing plate transverse arm (281) and with described pressing plate projection mating cavity (27) coordinate, the left end lower surface of pressing plate transverse arm (281) is close to the upper surface of first static contact (81), and pressing plate transverse arm (281) right-hand member lower surface is close to the upper surface of second static contact (82), and pressing plate trailing arm (282) inserts the pressing plate and indulges Arm mating groove (29), the left surface of the pressing plate trailing arm (282) is close to the right flank of the first static contact (81), and pressing plate trailing arm (282) right flank is close to the left surface of the second static contact (82).

9. built-in leakage protection module according to claim 1, it is characterised in that the front side outer wall of (5) is covered on described On be extended with one first input terminal fixed seat (55) and one second input terminal fixed seat (56), the first described input terminal (83) it is fixed with the first input terminal fixed seat (55), described the second input terminal (84) and the second input terminal fixed seat (56) it is fixed, one first outlet terminal fixed seat (57) and one second outlet terminal are extended with the rear side outer wall of Shang Gai (5) Fixed seat (58), second outlet fixed, described with the first outlet terminal fixed seat (57) of described the first outlet terminal (73) Terminal (74) is fixed with the second outlet terminal fixed seat (58).

10. built-in leakage protection module according to claim 1, it is characterised in that arrange on described upper lid (5) There is an indicator lamp (59a), the indicator lamp (59a) is electrically connected with the circuit board (3).