CN102237614B - Electricity leakage protection socket - Google Patents
Electricity leakage protection socket Download PDFInfo
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- CN102237614B CN102237614B CN 201010152951 CN201010152951A CN102237614B CN 102237614 B CN102237614 B CN 102237614B CN 201010152951 CN201010152951 CN 201010152951 CN 201010152951 A CN201010152951 A CN 201010152951A CN 102237614 B CN102237614 B CN 102237614B
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Abstract
The invention discloses a novel electricity leakage protection socket. The socket is characterized in that: two groups of metal sheets are fixed on left and right two sides lifting arms of a release of a reset / tripout mechanical device in the electricity leakage protection socket; one group of metal sheets is connected with power supply live wires and zero line input metal sheets; another group of the metal sheets is connected with the power supply live wires and a zero line output terminal; every ends of each metal sheet are provided with movable contacts; output conductor metal sheets, which are on left and right two sides of a middle support in the electricity leakage protection socket, are respectively provided with two stationary contacts; the movable contacts and the stationary contacts form a power switch. The invention has the following advantages that: the socket works stably and reliably; usage is safe.
Description
Technical field
The present invention relates to a kind of earth leakage protective socket.
Background technology
At present, common earth leakage protective socket such as the patent No. 01226819.4; 00233169.1 document is disclosed, it is mainly by housing, be installed in the reset button of surface of shell, testing button, and be installed in the interior differential differentiating transformer for detection of fault current of housing, be built-in with the tripping coil of iron core, controllable silicon, control chip, power supply input sheet metal, the formations such as power output end, reset guide assembly.
Along with the development of earth leakage protective socket industry, people are more and more higher to safety in utilization and the requirement in useful life of earth leakage protective socket.This makes its strength with better function, work safer, reliable so that the insider constantly is devoted to research, improves earth leakage protective socket.
Summary of the invention
In view of the foregoing, main purpose of the present invention provides the reliable improved new type electric leakageproof socket of a kind of working stability.
Another object of the present invention provides a kind of earth leakage protective socket with positive mechanical tripping function.When current leakage jack life termination, can reset button be threaded off by mechanical device, cut off the power supply output of earth leakage protective socket.
Another purpose of the present invention provides a kind of earth leakage protective socket with Presentation Function.At least be provided with two indicator lights in this earth leakage protective socket, the state of reflection earth leakage protective socket, as reset button reset front, reset button reset after, input wiring error etc.
Another purpose of the present invention provides a kind of with 1 font and T font power supply output plughole new type electric leakageproof socket safety shield device, that safety in utilization is good.This safe guard board apparatus for electric source insertion pore can prevent from touching because of false touch the generation of the electric shock casualty accident that the electrified body in the supply socket power supply output plughole causes effectively, improves safety in utilization.
For achieving the above object, the present invention is by the following technical solutions: a kind of new type electric leakageproof socket, it comprises housing, be installed in reset button, testing button on the housing, the earth leakage protective socket realized that is installed in the housing is placed on output conductive metal sheet in the described housing with/without the circuit board of power supply output and at least one pair of, is provided with at least one pair of power firestreak, zero line input sheet metal, at least one pair of power firestreak, zero line output and the mechanical device that resets/trip at this circuit board; It is characterized in that:
One end of described power firestreak, zero line input sheet metal is bent downwardly 90 degree, passes differential differentiating transformer and is welded on the circuit board, links to each other with power firestreak, zero line input wires screw, links to each other with power firestreak, zero line in the wall by wire;
The other end of power firestreak input sheet metal links to each other with a sheet metal by bus; The other end of zero-power line input sheet metal links to each other with another sheet metal by bus;
Described power firestreak, zero line output are welded on the other end of circuit board, contact with power supply output connection screw; The power firestreak output links to each other with another sheet metal by bus; The zero-power line output links to each other with a sheet metal again by bus;
A described sheet metal is fixed on carrying on the arm of release one side; One end of this sheet metal links to each other with power firestreak input sheet metal by bus; In the welding/riveted joint of the end of the sheet metal other end one moving contact is arranged; Above moving contact, be placed in that welding/riveted joint has a fixed contact on the described output conductive metal sheet of housing middle layer bracket one side; Moving contact on the sheet metal is corresponding up and down with the fixed contact of output on the conductive metal sheet, contact or disconnect mains switch of formation;
Described another sheet metal is fixed on carrying on the arm of release one side; One end of this sheet metal links to each other with the power firestreak output by bus; In the welding/riveted joint of the end of the sheet metal other end one moving contact is arranged, above moving contact, be placed in that welding/riveted joint has a fixed contact on the output conductive metal sheet of housing middle layer bracket one side, moving contact on the sheet metal is corresponding up and down with the fixed contact of output on the conductive metal sheet, contact or disconnect another mains switch of formation;
Described another sheet metal is fixed on carrying on the arm of release opposite side; One end of this sheet metal links to each other with zero-power line input sheet metal by bus; In the welding/riveted joint of the end of the sheet metal other end one moving contact is arranged; Above moving contact, be placed in that welding/riveted joint has a fixed contact on the output conductive metal sheet of housing middle layer bracket one side; Moving contact on the sheet metal is corresponding up and down with the fixed contact of output on the conductive metal sheet, contact or disconnect another mains switch of formation;
A described again sheet metal is fixed on carrying on the arm of release opposite side; One end of this sheet metal links to each other with the zero-power line output by bus; In the welding/riveted joint of the end of the sheet metal other end one moving contact is arranged, above moving contact, be placed in that welding/riveted joint has a fixed contact on the output conductive metal sheet of housing middle layer bracket one side, moving contact on the sheet metal is corresponding up and down with the fixed contact of output on the conductive metal sheet, contact or disconnect another mains switch of formation.
This earth leakage protective socket also is provided with an end-of-life positive mechanical tripgear;
This positive mechanical tripgear is positioned at the below of described testing button, and it comprises elastic steel sheet and the spring of plastics draw piece, fixed plastics draw piece; The elastic steel sheet of plastics draw piece, fixed plastics draw piece and spring are placed in the framework of trip coil;
Between described spring was placed under framework of trip coil and the described plastics draw piece, elastic steel sheet was stuck in the groove on the plastics draw piece, and the plastics draw piece is fixed in the framework of trip coil;
Described plastics draw piece stretches out near release one side is with sloping hook pin; Below the hook pin, have a mechanical trip hole on the end face of earth leakage protective socket inner lock buckle;
Press testing button downwards to primary importance, make the metallic test sheet in the earth leakage protective socket contact manually generation simulation leakage current with the conducting strip that links to each other with simulation leakage current current-limiting resistance; If current leakage jack life termination, reset button can't be threaded off/be tripped; Continue to press testing button to the second place; The plastics draw piece is moved down; spring is compressed; elastic steel sheet is compressed distortion also, and the hook pin of plastics draw piece inserts in the mechanical trip hole of snap close end face, along with the insertion of hook pin spurs snap close left; the bonnet lock hole of snap close end face is alignd with the reset guide post; the locked groove of reset guide column bottom is jumped out separation from lockhole, reset button is threaded off/tripping operation, and release moves down; moving contact separates with fixed contact, and the earth leakage protective socket power output end does not have power supply output.
On earth leakage protective socket and power input circuit board that power firestreak, zero line input wires screw link to each other, be welded with respectively a right angle triangle or isosceles triangle shape, be installed in point discharge sheet metal in the fixed bin, that be used for discharge, the two metal sheets tip is staggered relatively, and the maintenance certain intervals, the most advanced and sophisticated head ride out of two metal sheets is the same; Distance between the two metal sheets top is less than half of the distance between the two metal sheets bottom.
This earth leakage protective socket also comprises at least one group of power supply output plughole safety shield device; This power supply output plughole safety shield device is formed by small slide block and 2 spring assemblies of left slider, right slide block, T font;
Described left slider, right slide block are arranged in a crossed manner, and the small slide block of described left slider, right slide block and T font is placed on power firestreak, zero line output plughole top;
Described spring is arranged on and intersects between the described left slider of placing, the right slide block;
When attaching plug is not inserted in the earth leakage protective socket; the small slide block of left slider, right slide block and T font covers power firestreak, zero line output conduction sleeve; in the time of in attaching plug is inserted into earth leakage protective socket; under the effect of the blade on the attaching plug; the small slide block of left slider, right slide block and T font moves power firestreak, the zero line output conduction sleeve that exposes its below; attaching plug is inserted in power firestreak, the zero line output conduction sleeve, and power supply output is arranged.When attaching plug was extracted in the earth leakage protective socket, under the effect of spring, the small slide block of left slider, right slide block and T font returned to initial position, and power firestreak, the zero line output conduction sleeve of its below covered.
This earth leakage protective socket also comprises two whiles and the simulation leakage current generating switch reset button interlock, combination;
The simulation leakage current generating switch of this combination is arranged on below or the next door of the release in the mechanical release device that resets/trip; Wherein,
A simulation leakage current generating switch is made of electric-conductor and metal clips; Another simulation leakage current generating switch is made of electric-conductor and metal clips;
One end of the electric-conductor of a simulation of described formation leakage current generating switch links to each other the unsettled below that is positioned at metal clips of the other end with the power input zero line that passes differential differentiating transformer through controllable silicon; The unsettled top that is positioned at electric-conductor of one end of metal clips, the other end links to each other with an end of the metal clips that consists of another simulation leakage current generating switch, and by current-limiting resistance, correctly the indicator light that powers on links to each other with the power input zero line that passes differential differentiating transformer, simultaneously, also link to each other with the power input live wire that passes differential differentiating transformer by tripping coil, simultaneously, also link to each other with the power input (6) of control chip by rectifier diode, resistance;
Consist of the unsettled top that is positioned at another electric-conductor one end of the other end of the metal clips of another simulation leakage current generating switch, the other end of this electric-conductor links to each other with the power input zero line through current-limiting resistance;
When reset button was in trip status and reset mode, the simulation leakage current generating switch of described 2 combinations was in off-state simultaneously; When reset button was pressed, the simulation leakage current generating switch of described 2 combinations was closed simultaneously, produced the simulation leakage current, disconnected immediately simultaneously at any time.
This earth leakage protective socket also includes a circuit working switch that links with described reset button; This circuit working switch is made of two sheet metals; Wherein,
One end of a described sheet metal is welded on the circuit board, by wire through tripping coil with pass differential differentiating transformer power input live wire and link to each other, other end riveted joint has a contact;
There is a contact the unsettled top that is positioned at described sheet metal of one end of described another sheet metal in its end riveted joint; The other end be welded on the circuit board by controllable silicon with pass differential differentiating transformer power input zero line and link to each other;
When reset button was in trip status, the circuit working switch disconnected, and whole leakage current detection protection circuit is not charged; After reset button resetted, the circuit working switch closure provided working power by the circuit working switch for whole leakage current detection protection circuit.
Be provided with two indicator lights in this earth leakage protective socket, one is the indicator light that correctly powers on, and another is relay indicating light; Described reset button is before resetting, and the described indicator light that correctly powers on is bright; Reset button rear two indicator lights that reset are all bright.
This earth leakage protective socket has the function of the wiring error of preventing; if the installer is connected on the earth leakage protective socket power output end the power line mistake in the wall; correct power-up state indicator light does not work; pressing reset button can not be reset all the time; the proof false wiring; only have wiring correct, correct power-up state indicator light is bright, and reset button just can reset.
This earth leakage protective socket has three kinds of status display function, and the first is the show state function that powers on, and the second is show state function working properly, and the third is wrong reverse wiring Presentation Function;
Before the reset button proper reset, the indicator light that correctly powers on is bright, and after reset button resetted, relay indicating light was bright; When reset button was prevented from resetting, the indicator light that correctly powers on did not work, expression wiring error.
This earth leakage protective socket has three kinds of status switches that link with reset button; The first simulation electric leakage produces switch, the second circuit working switch, the third main power switch of powering;
When reset button is in trip status, described power supply main power switch, circuit working switch and simulation leakage current generating switch are in off-state;
When reset button was pressed, described power supply main power switch and circuit working switch were in off-state, described simulation leakage current generating switch closure;
After reset button resetted, described simulation leakage current generating switch was in off-state, and described power supply main power switch and circuit working switch are in closure state.
This current leakage jack life termination positive mechanical tripgear has two mechanical holes at least on the end face of described earth leakage protective socket inner lock buckle, a mechanical trip hole and a bonnet lock hole;
Described mechanical trip hole is located at the hook pin of plastics draw piece to straight below; When reset button was trip status, the bottom surface of described bonnet lock hole and reset guide post was the dislocation shape.
Advantage of the present invention: working stability is reliable, use safety.
Description of drawings
Fig. 1 is stereo decomposing structural representation of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is the front view after the present invention removes loam cake;
Fig. 4-1, Fig. 4 the-the 2nd, the annexation schematic diagram between power supply of the present invention input sheet metal, power output end, the two pairs of sheet metals;
Fig. 5-the 1st sees that from the right side each module position concerns schematic diagram on the circuit board of the present invention;
Fig. 5-the 2nd, each assembly master apparent place concerns schematic diagram on the circuit board of the present invention;
Fig. 5-the 3rd sees that from the left side each module position concerns schematic diagram on the circuit board of the present invention;
Fig. 6 is the present invention's mechanical device stereo decomposing structural representation that resets/trip;
Fig. 7-the 1st, the B-B partial sectional view of Fig. 3, the earth leakage protective socket initial condition, reset button is in trip gear, and each module position concerns schematic diagram during the output of earth leakage protective socket non-transformer;
Fig. 7-the 2nd, the B-B partial sectional view of Fig. 3, reset button is pressed moment, and during the output of earth leakage protective socket non-transformer, each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 7-the 3rd, the B-B partial sectional view of Fig. 3, reset button resets, and earth leakage protective socket is working properly when power supply output is arranged, and each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 8-the 1st, the B-B partial sectional view of Fig. 3, testing button is pressed into primary importance makes metallic test sheet 46 contact with conducting strip 47, reset button is not threaded off, earth leakage protective socket still has power supply output, prove this earth leakage protective socket during end-of-life, each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 8-the 2nd, the B-B partial sectional view of Fig. 3 continues to press testing button to the second place and makes by force mechanical release device action, and reset button is threaded off, and when cutting off the output of earth leakage protective socket power supply, each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 9-the 1st, the C-C partial sectional view of Fig. 3, reset button is in trip status, and during the output of earth leakage protective socket non-transformer, each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 9-the 2nd, the C-C partial sectional view of Fig. 3, reset button is pressed, and during the output of earth leakage protective socket non-transformer, each module position concerns schematic diagram in the earth leakage protective socket;
Fig. 9-the 3rd, the C-C partial sectional view of Fig. 3, reset button resets, and when earth leakage protective socket had power supply output, each module position concerned schematic diagram in the earth leakage protective socket;
Figure 10 is mounted in the leakage current detection protection circuit physical circuit figure in the present invention.
Embodiment
As shown in Figure 1, new type electric leakageproof socket disclosed by the invention mainly is made of with/without the circuit board 18 of power supply output housing, the earth leakage protective socket realized that is installed in the housing.
Described housing is combined by middle layer bracket 3 and the base 4 of loam cake 2, insulation; Between the middle layer bracket 3 of loam cake 2 and insulation, metal ground connection mounting panel 1 is installed; Between the middle layer bracket 3 that insulate and base 4, circuit board 18 is installed.
As shown in Figure 1 and Figure 2, have two group of three plug-in source output plughole 5,6, reset button hole 8-A, testing button hole 7-A and status indicator lamp hole 30-A at loam cake 2.Reset button (RESET) 8 and testing button (TEST) 7 are installed in reset button hole 8-A and testing button hole 7-A, and reset button 8 and testing button 7 pass metal ground connection mounting panel 1 and insulation middle layer bracket 3 and contact with assembly on the circuit board 18.Be provided with four grab 2-A in the side of loam cake 2, be used for fixing with the draw-in groove 4-B of base 4 inboards, loam cake 2 is fixed with base 4 be in the same place.
Metal ground connection mounting panel 1 links to each other with the earth by earthing screw 13-A or ground connection tension disc 13E (referring to Fig. 3), wire between the middle layer bracket 3 of loam cake 2 and insulation.On metal ground connection mounting panel 1, locate to be provided with ground connection blade 11,12 with loam cake 2 power supply output plugholes 5,6 ground hole are vertical up and down.Be provided with installing hole 13-B and faceplate screw installing hole 13-H at the two ends of metal ground connection mounting panel 1.
Shown in Fig. 1, Fig. 3, Fig. 4-1, Fig. 4-2, respectively be placed with respectively an output conductive metal sheet 14 and 13 in the both sides of the middle layer bracket 3 that insulate.At output conductive metal sheet 13,14 two ends, locate to be provided with sheet clip leaf wing 60,61,62,63 with loam cake 2 power supply output plugholes 5,6 null line hole, live wire hole are vertical up and down.
As shown in Figure 1, base 4 is used for holding middle layer bracket 3 and circuit board 18.The bilateral symmetry of base 4 be provided with a pair of zero-power line, live wire input wires screw 9,10 and a pair of zero-power line, live wire output connection screw 109,110.
Core component of the present invention is mounted in the circuit board 18 in the housing, the power supply output connection screw 109,110 that it has the power supply output plughole 5,6 that makes on the socket loam cake 2, base 4 both sides has/or non-transformer output and detect earth leakage protective socket whether end-of-life, show testing result, make reset button reliably, stably reset/or the function of threading off.
Shown in Fig. 1, Fig. 5-2, Fig. 4-1, Fig. 4-2, be provided with two power firestreaks, zero line input sheet metal 51,50 at circuit board 18.Power firestreak, zero line input sheet metal 51, an end of 50 are bent downwardly 90 degree, passing differential differentiating transformer 19 is welded on the circuit board 18, link to each other with power firestreak, zero line input wires screw 10,9 by power supply input wires sheet 25,24, power firestreak input wires screw 10 links to each other with power firestreak in the wall by wire, and zero-power line input wires screw 9 links to each other with zero-power line in the wall by wire.The other end of power firestreak input sheet metal 51 links to each other with the end (referring to Fig. 6) of sheet metal 23A by bus 94A, and other end welding/riveted joint of sheet metal 23A has a moving contact 23; The other end of zero-power line input sheet metal 50 links to each other with the end (referring to Fig. 6) of another sheet metal 22A by bus 94C, and other end welding/riveted joint of sheet metal 22A has a moving contact 22.
Certainly, the other end of power firestreak input sheet metal 51 can also directly be welded on the circuit board 18, links to each other with the end of sheet metal 23A by the wire on the circuit board.In like manner, the other end of zero-power line input sheet metal 50 also can directly be welded on the circuit board 18, links to each other with the end of sheet metal 22A by the wire on the circuit board.
The other end at circuit board 18 is welded with a pair of power firestreak, the zero line output 81,80 that contacts with power supply output connection screw 110,109.Power firestreak output 81 links to each other with the end (referring to Fig. 6) of another sheet metal 55A by bus 94B, and other end welding/riveted joint of sheet metal 55A has a moving contact 55; Zero-power line output 80 links to each other with the end (referring to Fig. 6) of a sheet metal 54A again by bus 94D, and the other end of sheet metal 54A welds/rivets a moving contact 54.
Certainly, power firestreak output 81 can also directly be welded on the circuit board 18, links to each other with the end of sheet metal 55A by the wire on the circuit board.In like manner, zero-power line output 80 also can directly be welded on the circuit board 18, links to each other with the end of sheet metal 54A by the wire on the circuit board.
As shown in Figure 6, sheet metal 23A and sheet metal 55A are fixed on carrying on the arm that release 28 1 epitaxial lateral overgrowths of the mechanical device that resets/trip stretch.Sheet metal 22A and sheet metal 54A are fixed on outward extending the carrying on the arm of release 28 opposite sides of the mechanical device that resets/ trip.Sheet metal 22A, 23A, 55A, 54A are along with release 28 moves up and down together.
Shown in Fig. 4-1, Fig. 4-2, Fig. 5-1, Fig. 5-2, Fig. 5-3, above sheet metal 23A end moving contact 23, corresponding output conductive metal sheet 14 is provided with a fixed contact 53 with it, and moving contact 23 and fixed contact are corresponding about in the of 53, and contact or disconnection consist of a mains switch.
Equally, above sheet metal 55A end moving contact 55, also be provided with a fixed contact 16 on the corresponding output conductive metal sheet 14 with it, moving contact 55 and fixed contact are corresponding about in the of 16, and contact or disconnection consist of another mains switch.
Equally, above sheet metal 22A end moving contact 22, corresponding output conductive metal sheet 13 is provided with a fixed contact 52 with it, and moving contact 22 and fixed contact are corresponding about in the of 52, and contact or disconnection consist of another mains switch.
Equally, above sheet metal 54A end moving contact 54, also be provided with a fixed contact 15 on the corresponding output conductive metal sheet 13 with it, moving contact 54 and fixed contact are corresponding about in the of 15, and contact or disconnection consist of another mains switch.
The advantage of this structural design: 1, alleviate the stressed of the back-moving spring 91 that is enclosed within the mechanical device that resets/trip on the reset guide post 35, prevent that the contact contact is bad.2, avoid spacing unstablely between the moving contact, cause withstand voltage reduction.When 3, reducing work, the contact temperature rise of moving contact, fixed contact.4, when reseting procedure, four pairs of power contacts can be regulated automatically, make contact better.5, reduce tripping operation and produce electric arc.6, contact long service life.
Such as Fig. 1, Fig. 5-2, Fig. 7-1, shown in Figure 10, on circuit board 18, also be provided with the differential differentiating transformer 19 (coil L1, L2 among Figure 10) for detection of fault current.Power firestreak, zero line input sheet metal 51,50 passes differential differentiating transformer 19 and links to each other with power firestreak, zero line in the wall through power supply input wires screw 10,9.When leaky occurring in the current supply circuit; differential differentiating transformer will output signal to control chip IC1; control chip IC1 output control signal makes controllable silicon V4 conducting; make tripping coil 26 (the coil L3 among Figure 10) automatically produce magnetic field; iron core 42 transverse shiftings that are built in the tripping coil are drawn in suction; the microcephaly of iron core 42 collides snap close 30; thereby snap close 30 actions make resetting on the circuit board 18/mechanical device that trips action; reset button 8 is threaded off, cut off the output of earth leakage protective socket power supply.
Such as Fig. 1, Fig. 5-2, Fig. 6, Fig. 7-1, shown in Figure 10, on circuit board 18, also be provided with can earth leakage protective socket with/without the mechanical device that resets/trip of power supply output.This mechanical device that resets/trip mainly comprises the reset guide post 35 that is embedded in below the reset button 8, be enclosed within back-moving spring 91 and fast trip spring 66-A on the reset guide post 35, pad 28A resets, " T " font release 28, snap close 30, with simulation leakage current generating switch 72A, 72,88,66 (the K switch R-4 among Figure 10 and the KR-6) of two combinations of reset button 8 interlock, circuit working switch 88,67 (the K switch R-2 among Figure 10) and tripping coil 26.
" T " font release 28 is positioned at the below of reset button 8, with reset button 8 interlocks." T " font release 28 left and right sides stretch out to form and carry arm, and outward extending carrying is fixed with respectively two sheet metals on the arm in release 28 left and right sides.Shown in Fig. 6, Fig. 5-2, be fixed with two sheet metal 23A and sheet metal 55A at the arm of carrying of release 28 1 sides.The end of sheet metal 23A links to each other with an end of power firestreak input sheet metal 51 by bus 94A; The end of another sheet metal 55A links to each other with power firestreak output 81 by bus 94B.
Shown in Fig. 6, Fig. 5-2, carry at release 28 opposite sides and also to be fixed with two sheet metal 22A and sheet metal 54A on the arm.The end of sheet metal 22A links to each other with zero-power line input sheet metal 50 by bus 94C; The end of another sheet metal 54A links to each other with zero-power line output 80 by bus 94D.
The advantage of this structural design: 1, alleviate the stressed of the back-moving spring that is enclosed within on the reset guide post 35, prevent that the contact contact is bad.2, avoid spacing unstablely between the moving contact, cause withstand voltage reduction.When 3, reducing work, the contact temperature rise of moving contact, fixed contact.4, when reseting procedure, four pairs of power contacts can be regulated automatically, make contact better.5, reduce tripping operation and produce electric arc.6, contact long service life.
The pad 28A that resets is positioned at the below of reset button 8, the top of " T " font release 28.Reset pad 28A and release 28 can be combined, and moves up and down with release 28; Simultaneously, resetting pad 28A again can be separated from one another with release 28.Release 28 is contained in the framework of trip coil 26Z, and the pad 28A that resets is placed on framework of trip coil 26H place.The positive stop 26E restriction on the pad 28A of the resetting pad 28A lowest point movably downwards that resets.
Have a vertical clear opening 29A that reset guide post 35 is passed in the centre of the pad 28A that resets, also have a longitudinally central perforation 29 in the centre of release 28, shown in Fig. 7-1, the cover that is embedded in reset button 8 bottom surfaces has the reset guide post 35 of back-moving spring 91, fast trip spring 66-A to move up and down along the pad 28A that resets, release 28 middle clear opening 29A, central perforations 29.As shown in Figure 6, the upper section diameter of reset guide post 35 forms step 35A greater than its underpart diameter between the upper and lower part; Back-moving spring 91 is enclosed within the upper part of reset guide post 35, between the middle layer bracket 3 of reset button 8 and insulation; Lower part cover at reset guide post 35 has a fast trip spring 66-A, and this fast trip spring 66-A is at the step 35A of reset guide post 35 and reset between the pad 28A.
This fast trip spring 66-A can make reset button 8 quickly and reliably thread off, and moving contact is separated rapidly with fixed contact, thereby, greatly prolong useful life of earth leakage protective socket.
Have a through hole 30E who runs through its front and back at the middle part of release 28, cross release 28 middle through-hole 30E and be provided with a snap close 30 of movably being made by stainless steel material, be provided with two holes at the end face 31A of snap close 30, one is mechanical trip hole 31B, and another is bonnet lock hole 31.When reset button 8 is in trip status, is contained in the clear opening 29A of the pad 28A that resets, release 28 centres, the bottom surface 41 of the reset guide post 35 in the central perforation 29 and the bonnet lock holes 31 of snap close 30 end face 31A and is the dislocation shape.
Between the madial wall of the lateral wall of release 28 and snap close 30, be provided with a latch spring 34.Be provided with a tripping coil 26 that is built-in with movable core 42 in the outside of snap close 30 sidewalls, tripping coil 26 built-in movable cores 42 face snap close 30.Snap close 30 can transverse shifting under the effect of iron core 42, thereby makes the bottom surface 41 of the reset guide post 35 under the reset button 8 penetrate or pass in the bonnet lock hole 31 of snap close 30 end faces, and reset button 8 resets or threads off (tripping operation).Cover has turriform spring 42A in the end of movable core 42 steps.
Such as Fig. 6, Fig. 9-1～Fig. 9-3, shown in Figure 10, below release 28 or the next door be provided with simulation leakage current generating K switch R-4 and the KR-6 of the combination of two whiles and reset button (RESET) 8 interlocks.Wherein, a simulation leakage current generating K switch R-4 is made of electric-conductor 72A and metal clips 72; Another simulation leakage current generating K switch R-6 is made of electric-conductor 66 and metal clips 88.
An end that consists of the electric-conductor 72A of simulation leakage current generating K switch R-4 links to each other the unsettled below that is positioned at metal clips 72 of the other end with the power input zero line that passes differential differentiating transformer 19 through controllable silicon V4; The unsettled top that is positioned at electric-conductor 72A of one end of metal clips 72, the other end links to each other with an end of the metal clips 88 that consists of another simulation leakage current generating K switch R-6, and by current-limiting resistance R6, correctly the indicator light V5 that powers on links to each other with the power input zero line that passes differential differentiating transformer 19, simultaneously, also link to each other with the power input live wire that passes differential differentiating transformer 19 by tripping coil L3, simultaneously, also link to each other with the power input 6 of control chip IC1 by rectifier diode V1, resistance R 1.
Consist of the unsettled top that is positioned at electric-conductor 66 1 ends of the other end of the metal clips 88 of simulation leakage current generating K switch R-6, the other end of electric-conductor 66 links to each other with the power input zero line through current-limiting resistance R4.
Shown in Fig. 9-1, when reset button 8 is in trip status, all be in off-state with two simulation leakage current generating K switch R-4, KR-6 the reset button interlock, combination.
Shown in Fig. 9-2, when reset button 8 is pressed, all closed with two simulation leakage current generating K switch R-4, KR-6 the reset button interlock, combination.As shown in figure 10, the power input zero line links to each other with the power input live wire that passes differential differentiating transformer through resistance R 4, closed simulation leakage current generating K switch R-6, tripping coil L3, forms the closed-loop path and produces the simulation leakage current.Because R-4 is closed for another simulation leakage current generating K switch, the power input live wire provides working power, control circuit work through the simulation leakage current generating K switch R-4 of closure for controllable silicon V4 and control chip IC1.Two simulation leakage current generating K switch R-4, KR-6 disconnect immediately, and the simulation leakage current disappears.
If earth leakage protective socket does not have end-of-life; the then mechanical device action that resets/trip in the earth leakage protective socket; reset button can reset shown in Fig. 9-3; power supply main power switch KR-2-1, KR-2-2, KR-3-1, KR-3-2 and circuit working K switch R-2 are closed, and power output end has power supply output.
Otherwise, if current leakage jack life termination, then the mechanical device that resets/trip in the earth leakage protective socket is failure to actuate, and reset button can't reset all the time, and power output end does not have power supply output.
Such as Fig. 6, Fig. 9-1～Fig. 9-3, shown in Figure 10, also be provided with a circuit working K switch R-2 on the next door of release 28, this circuit working K switch R-2 is made of sheet metal 88 and sheet metal 67.One end of sheet metal 88 is welded on the circuit board 18, by wire through tripping coil L3 with pass differential differentiating transformer (L1, L2) power input live wire and link to each other, the other end riveted joint of sheet metal 88 has a contact 68A.There is a contact 67A the unsettled top that is positioned at sheet metal 88 of one end of sheet metal 67 in its end riveted joint; The other end of sheet metal 67 be welded on the circuit board by controllable silicon with pass differential differentiating transformer (L1, L2) power input zero line and link to each other.Shown in Fig. 9-1, when reset button RESET was in trip status, circuit working K switch R-2 disconnected; whole leakage current detection protection circuit shown in Figure 10 is not charged, and this design can reduce energy consumption, saves energy; simultaneously, prolong the useful life of each electric elements.Shown in Fig. 9-3, after reset button resetted, the contact 68A of circuit working K switch R-2 and 67A were closed, provide working power by circuit working K switch R-for whole leakage current detection protection circuit.
As shown in Figure 6, reset pad 28A, release 28, snap close 30, with the simulation leakage current generating K switch R-4 (72 of two combinations of reset button 8 interlocks, 72A) and KR-6 (66,88) and circuit working K switch R-2 (88,67) all place in the framework of trip coil 26Z.Coil scope at tripping coil 26 is provided with a tripping coil protective cover 41-C; Respectively be provided with one about its side and be used for hooking the hook pin 41-B in the hole on the circuit board 18.
Consist of the mechanical device that resets/trip reset guide post 35, be enclosed within back-moving spring 91 on the reset guide post 35 and fast trip spring 66-A, the pad 28A that resets, " T " font release 28, snap close 30, simulate leakage current generating K switch R-4 (72 with two of reset button 8 interlocks, 72A) and KR-6 (66,88), circuit working K switch R-2 (88,67) and tripping coil 26 are connected mutually becomes the freely integral body of activity, they are fitted to each other, and are indispensable.
Fig. 6 is the present invention's mechanical device stereo decomposing structural representation that resets/trip.In the shown in Figure 6 resetting/mechanical device that trips, be embedded in the upper and lower part diameter difference of the reset guide post 35 of reset button 8 belows, certainly, the upper and lower part diameter of reset guide post 35 also can be identical.Back-moving spring 91 is enclosed within the upper part of reset guide post 35, between the middle layer bracket 3 of reset button 8 and insulation; Fast trip spring 66-A is enclosed within the lower part of reset guide post 35, this fast trip spring 66-A the insulation middle layer bracket 3 below and reset between the pad 28A.
Shown in Fig. 1, Fig. 6, Fig. 7-1, the present invention also is provided with below testing button 7 for the elastic sheet metal 46 that manually produces the simulation leakage current and the sheet metal 47 that links to each other with simulation leakage current current-limiting resistance.As shown in figure 10, elastic sheet metal 46 and sheet metal 47 consist of K switch R-5.One end of elastic sheet metal 46 links to each other with live wire or the zero line of earth leakage protective socket power output end LOAD, and the other end is unsettled, thereunder is provided with a metalwork 47 that links to each other with simulation leakage current current-limiting resistance; The unsettled below that is positioned at elastic sheet metal 46 of one end of metalwork 47 is arranged on plastics draw piece 99 tops, and the other end links to each other with zero line or the live wire of power input by simulation leakage current current-limiting resistance.Shown in Fig. 8-1, press testing button 7 downwards to primary importance, make elastic sheet metal 46 contact conducting with metalwork 47, manually produce the simulation leakage current.Shown in Fig. 7-1, discharge testing button 7, elastic sheet metal 46 disconnects with metalwork 47, and the simulation leakage current disappears.
Shown in Fig. 8-1, press testing button 7 downwards to primary importance, elastic sheet metal 46 is contacted with metalwork 47 manually produce the simulation leakage current.If earth leakage protective socket does not have end-of-life, the mechanical device that then resets in the socket/trip action is threaded off/tripping operation reset button, such as Fig. 9-1, cuts off the power supply output of earth leakage protective socket.If current leakage jack life termination, the mechanical device that when namely not having leakage protection, resets/trip is failure to actuate, and shows such as Fig. 8-1, and reset button can't be threaded off/be tripped, and the power output end of earth leakage protective socket still has power supply output.
For in this case, cut off by force the power supply output of earth leakage protective socket, as Fig. 6, Fig. 8-2, shown in, the present invention has also designed an end-of-life positive mechanical tripgear.This positive mechanical tripgear is positioned at the below of testing button, and it comprises elastic steel sheet 48 and the spring 99C of plastics draw piece 99, fixed plastics draw piece.The elastic steel sheet 48 of plastics draw piece 99, fixed plastics draw piece and spring 99C are placed in the tripping coil other end skeleton 83.Spring 99C is placed between skeleton 83 low bottom-disc platforms and the plastics draw piece 99, and elastic steel sheet 48 is stuck in the groove 99B of plastics draw piece 99, and plastics draw piece 99 is fixed in the skeleton 83.Plastics draw piece 99 stretches out near release 28 1 sides is with sloping hook pin 99A.Hook pin 99A is positioned at the mechanical trip hole 31B top of the end face 31A end of snap close 30.
Shown in Fig. 8-1, press testing button 7 downwards to primary importance, elastic sheet metal 46 is contacted with metalwork 47 manually produce the simulation leakage current.If earth leakage protective socket does not have end-of-life, the mechanical device that then resets in the socket/trip action is threaded off/tripping operation reset button, cuts off the power supply output (Fig. 9-1) of earth leakage protective socket.If current leakage jack life termination; when namely not having leakage protection; the mechanical device that resets/trip is failure to actuate; reset button can't be threaded off/be tripped; when the power output end of earth leakage protective socket still has power supply output; shown in Fig. 8-2, continue to press testing button 7 to the second place; plastics draw piece 99 moves down; spring 99C is compressed; the hook pin 99A of plastics draw piece 99 is inserted in the mechanical trip hole 31B of snap close 30; along with the insertion of hook pin 99A spurs snap close 30 left, the lockhole 31 of snap close 30 end faces is alignd with reset guide post 35, the locked groove 36 of reset guide post 35 bottoms is jumped out from lockhole 31; reset button 8 is threaded off/tripping operation; release 28 moves down, and moving contact separates with fixed contact, and the earth leakage protective socket power output end does not have power supply output.
Discharge testing button 7, under the effect of spring 99C, plastics draw piece 99 moves up, and hook pin 99A deviates from the hole 31B of snap close 30 end faces, has realized the pressure tripping function.
Shown in Fig. 9-1, the present invention is welded with power on indicator light V5 and relay indicating light V3 at circuit board 18, be provided with a light lead pipe 77 of vertically placing above the indicator light at two, this light lead pipe 77 passes middle layer bracket 3, and its top is positioned at the phase mean place of the indicator lamp hole 30-A on loam cake 2 surfaces.After the power line in earth leakage protective socket power input and the wall connects; the indicator light V5 that correctly powers on is bright; when reset button resets; when earth leakage protective socket has power supply output; the indicator light V5 that powers on is bright; another relay indicating light V3 is also bright, by light lead pipe 77 2 kinds of mixed lights cap surface from the socket is revealed.
As shown in figure 10, the present invention also comprises two display circuits, and one is the display circuit that correctly powers on, and another is the normal operating conditions display circuit.The display circuit that correctly powers on is made of power on indicator light V5 and current-limiting resistance R6.Power on after indicator light V5, display circuit and the current-limiting resistance R6 series connection, an end links to each other with the power input zero line that passes differential differentiating transformer, and the other end links to each other with the power input live wire that passes differential differentiating transformer through tripping coil L3.
Behind the power line exact connect ion in earth leakage protective socket power input and the wall, the indicator light V5 that correctly powers on is bright, the power input that shows this leakage current detection protection circuit with wall in power supply correctly link to each other.If the operator is mistakenly with the power firestreak in the wall; the live wire of the power output end LOAD of zero line and leakage current detection protection circuit; when zero line links to each other; because this moment, reset button RESET was in trip status; main power source power switch KR-2-1 with reset button RESET interlock; KR-2-2; KR-3-1; KR-3-2 is in off-state; so; the display circuit two ends that correctly power on are not charged; the indicator light V5 that correctly powers on does not work; relay indicating light V3 is bright; reset button can not be reset simultaneously; this leakage current detection protection circuit wiring error is described, checks in time whether connection is correct.
As shown in figure 10, the operating state display circuit is made of relay indicating light V3, current-limiting resistance R5, rectifier diode V2.After relay indicating light V3, current-limiting resistance R5 and the rectifier diode V2 series connection, the one end links to each other with the power output end live wire; The other end links to each other with the power output end zero line.
When reset button is in trip status, be in off-state with main power source power switch KR-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock, the operating state display circuit is in and opens circuit, and relay indicating light V3 does not work, at this moment, the indicator light V5 that correctly powers on is bright.
When reset button was pressed downwards, the main power source power switch KR-2-1, KR-2-2, KR-3-1, the KR-3-2 that link with reset button RESET still were in off-state, and relay indicating light V3 does not work.
When reset button was in reset mode, circuit working K switch R-2 was closed, and closed with main power source power switch KR-2-1, KR-2-2, KR-3-1, the KR-3-2 of reset button RESET interlock, correctly power on indicator light V5 and relay indicating light V3 are bright.
The present invention is by the on-off of correctly power on display circuit and operating state display circuit, makes the indicator light V5 that correctly powers on bright or do not work, and relay indicating light V3 is bright or do not work the operating state of reaction earth leakage protective socket.That is, reset button has at least an indicator light lamp bright before resetting, and reset button has at least two indicator lights simultaneously bright after resetting; If the installer is with the output that is connected on of the power line mistake of input, correct power-up state indicator light V5 does not work, and relay indicating light V3 is bright, pressing reset button can not be reset all the time, the proof false wiring only has correct wiring, and correct power-up state indicator light V5 is bright; Reset button just can reset, and relay indicating light just can light.
In a word, this earth leakage protective socket has three kinds of status display function, and the first is the show state function that powers on, and the second is show state function working properly, and the third is wrong reverse wiring Presentation Function.Before the reset button proper reset, the indicator light V5 that correctly powers on is bright, and after reset button resetted, relay indicating light V3 and the indicator light V5 that powers on were bright; When reset button was prevented from resetting, the indicator light V5 that correctly powers on did not work, and relay indicating light V3 is bright, expression false wiring state.
In specific embodiments of the invention, correctly power on indicator light V5 and normal operation indicator light V3 are the indicator light of two kinds of different colours.
Such as Fig. 9-1～Fig. 9-3, shown in Figure 10, the present invention comprises 7 switches altogether, wherein, and 4 main circuit power supply K switch R-2-1, KR-2-2, KR-3-1, KR-3-2, simulation leakage current generating K switch R-4 and the KR-6 of 2 combinations, 1 circuit working K switch R-2.
Such as Fig. 9-1, shown in Figure 10; when reset button is in trip status; during the output of earth leakage protective socket non-transformer; 4 main circuit power supply K switch R-2-1, KR-2-2, KR-3-1, KR-3-2 in the earth leakage protective socket, simulation leakage current generating K switch R-4 and the KR-6 of 1 circuit working K switch R-2 and 2 combinations are in off-state.
Such as Fig. 9-2, shown in Figure 10; when reset button is pressed; still non-transformer output of earth leakage protective socket; 4 main circuit power supply K switch R-2-1, KR-2-2, KR-3-1, KR-3-2 and 1 circuit working K switch R-2 in the earth leakage protective socket are in off-state, and the simulation leakage current generating K switch R-4 of 2 combinations and KR-6 are closed.
Such as Fig. 9-3, shown in Figure 10; reset button resets; when earth leakage protective socket has power supply output; simulation leakage current generating K switch R-4 and the KR-6 of 2 combinations in the earth leakage protective socket are in off-state, and 4 main circuit power supply K switch R-2-1, KR-2-2, KR-3-1, KR-3-2 and 1 circuit working K switch R-2 are in closure state.
In order to improve the useful life of earth leakage protective socket; avoid because the instantaneous pressure that thunderbolt or other reasons produce damages earth leakage protective socket; such as Fig. 1; shown in Figure 6; the present invention is at earth leakage protective socket and power firestreak; zero line input wires screw 10; the 9 power supply input wires sheets 25 that link to each other; 24 with circuit that circuit board links to each other on be welded with respectively a pair of right angle trigonometry for discharge or the discharge metal sheets 25A of isosceles triangle shape; 24A; the two metal sheets tip is staggered relatively; and the maintenance certain intervals, the distance between the two metal sheets top is less than half of the distance between the two metal sheets bottom.Discharge metal sheets 25A, 24A are placed in the fixed bin 82.The advantage of this design: 1, be convenient to processing and manufacturing; 2, the assembling lasting accuracy is high; 3, low cost of manufacture.
When acting on earth leakage protective socket owing to the instantaneous pressure that is struck by lightning or other reasons causes; discharge metal sheets and the air dielectric that is connected between the discharge metal sheets of right angle trigonometry shape at input zero line place of right angle trigonometry shape that is connected to input live wire place is breakdown; form atmospherical discharges; most of high pressure consumes by discharge metal sheets; the residue sub-fraction consumes by tripping coil SOL, piezo-resistance MOV, thereby has protected earth leakage protective socket not broken by high pressure.
In specific embodiments of the invention, described piezo-resistance MOV selects Surge suppression type piezo-resistance, makes it can also play the effect that prevents electrophoresis.
For preventing touching energized conductor in the power supply output plughole of earth leakage protective socket surface because of false touch, and the generation of the electric shock casualty accident that causes, as shown in Figure 1, the present invention also is provided with power supply output plughole safety shield device above the power supply output plughole.This power supply output plughole safety shield device is combined by small slide block 208 and 2 springs 207 of left slider 205, right slide block 206, T font.When attaching plug is not inserted in the earth leakage protective socket; the small slide block 208 of left slider 205, right slide block 206 and T font covers power firestreak, zero line output conduction sleeve; in the time of in power supply is inserted into earth leakage protective socket; under the effect of the blade on the attaching plug; the small slide block 208 of left slider 205, right slide block 206 and T font moves power firestreak, the zero line output conduction sleeve that exposes its below; attaching plug is inserted in power firestreak, the zero line output conduction sleeve, and power supply output is arranged.When attaching plug was extracted in the earth leakage protective socket, under the effect of spring 207, the small slide block 208 of left slider 205, right slide block 206 and T font returned to initial position, and power firestreak, the zero line output conduction sleeve of its below covered.
The above is specific embodiments of the invention and the know-why used, and is any based on the equivalent transformation on the technical solution of the present invention basis, all belongs within the protection range of the present invention.
Claims (11)
1. new type electric leakageproof socket, it comprises housing, be installed in reset button, testing button on the housing, the earth leakage protective socket realized that is installed in the housing is placed on the output of first in described housing conductive metal sheet (13), the second output conductive metal sheet (14) with/without the circuit board of power supply output and at least one pair of, is provided with at least one pair of power firestreak, zero line input sheet metal (51,50), at least one pair of power firestreak, zero line output (81,80) and the mechanical device that resets/trip at this circuit board; It is characterized in that:
One end of described power firestreak, zero line input sheet metal (51,50) is bent downwardly 90 degree, passing differential differentiating transformer (19) is welded on the circuit board (18), link to each other with power firestreak, zero line input wires screw (10,9), link to each other with power firestreak, zero line in the wall by wire;
The other end of power firestreak input sheet metal (51) links to each other with a sheet metal (23A) by bus (94A); The other end of zero-power line input sheet metal (50) links to each other with another sheet metal (22A) by bus (94C);
Described power firestreak, zero line output (81,80) are welded on the other end of circuit board (18), contact with power supply output connection screw (110,109); Power firestreak output (81) links to each other with another sheet metal (55A) by bus (94B); Zero-power line output (80) links to each other with a sheet metal (54A) again by bus (94D);
A described sheet metal (23A) is fixed on carrying on the arm of release (28) one sides; One end of this sheet metal (23A) links to each other with power firestreak input sheet metal (51) by bus (94A); In the welding/riveted joint of the end of this sheet metal (23A) other end one moving contact (23) is arranged; Top in moving contact (23), the upper welding/riveted joint of described the second output conductive metal sheet (14) that is placed in housing middle layer bracket (3) one sides has a fixed contact (53); Moving contact (23) on this sheet metal (23A) is corresponding up and down with the second fixed contact (53) of exporting on the conductive metal sheet (14), and contact or disconnection consist of a mains switch;
Described another sheet metal (55A) is fixed on carrying on the arm of release (28) one sides; One end of this sheet metal (55A) links to each other with power firestreak output (81) by bus (94B); In the welding/riveted joint of the end of this sheet metal (55A) other end one moving contact (55) is arranged, top in moving contact (55), upper welding/the riveted joint of the second output conductive metal sheet (14) that is placed in housing middle layer bracket (3) one sides has a fixed contact (16), moving contact (55) on this sheet metal (55A) is corresponding up and down with the second fixed contact (16) of exporting on the conductive metal sheet (14), and contact or disconnection consist of another mains switch;
Described another sheet metal (22A) is fixed on carrying on the arm of release (28) opposite side; One end of this sheet metal (22A) links to each other with zero-power line input sheet metal (50) by bus (94C); In the welding/riveted joint of the end of this sheet metal (22A) other end one moving contact (22) is arranged; Top in moving contact (22), the upper welding/riveted joint of the first output conductive metal sheet (13) that is placed in housing middle layer bracket (3) one sides has a fixed contact (52); Moving contact (22) on this sheet metal (22A) is corresponding up and down with the first fixed contact (52) of exporting on the conductive metal sheet (13), and contact or disconnection consist of another mains switch;
A described again sheet metal (54A) is fixed on carrying on the arm of release (28) opposite side; One end of this sheet metal (54A) links to each other with zero-power line output (80) by bus (94D); In the welding/riveted joint of the end of this sheet metal (54A) other end one moving contact (54) is arranged, top in moving contact (54), upper welding/the riveted joint of the first output conductive metal sheet (13) that is placed in housing middle layer bracket (3) one sides has a fixed contact (15), moving contact (54) on this sheet metal (54A) is corresponding up and down with the first fixed contact (15) of exporting on the conductive metal sheet (13), and contact or disconnection consist of another mains switch.
2. new type electric leakageproof socket according to claim 1, it is characterized in that: this earth leakage protective socket also is provided with an end-of-life positive mechanical tripgear;
This positive mechanical tripgear is positioned at the below of described testing button (7), and it comprises elastic steel sheet (48) and the spring (99C) of plastics draw piece (99), fixed plastics draw piece; The elastic steel sheet (48) of plastics draw piece (99), fixed plastics draw piece and spring (99C) are placed in the framework of trip coil (83);
Between described spring (99C) is placed under framework of trip coil (83) and the described plastics draw piece (99), elastic steel sheet (48) is stuck in the groove (99B) on the plastics draw piece (99), and plastics draw piece (99) is fixed in the framework of trip coil (83);
Described plastics draw piece (99) stretches out near release (28) one sides is with sloping hook pin (99A); In the below of hook pin (99A), have a mechanical trip hole (31B) on the end face of earth leakage protective socket inner lock buckle (30);
Press testing button (7) downwards to primary importance, make the metallic test sheet (46) in the earth leakage protective socket contact manually generation simulation leakage current with the conducting strip (47) that links to each other with simulation leakage current current-limiting resistance; If current leakage jack life termination, reset button can't be threaded off/be tripped; Continue to press testing button (7) to the second place; Plastics draw piece (99) is moved down; (99C) is compressed for spring; also compressed distortion of elastic steel sheet (48); the hook pin (99A) of plastics draw piece (99) inserts in the mechanical trip hole (31B) of snap close (30) end face; along with the insertion of hook pin (99A) spurs snap close (30) left; the bonnet lock hole (31) of snap close (30) end face is alignd with reset guide post (35); the locked groove (36) of reset guide post (35) bottom is jumped out separation from bonnet lock hole (31); reset button (8) is threaded off/tripping operation; release (28) moves down; moving contact separates with fixed contact, and the earth leakage protective socket power output end does not have power supply output.
3. new type electric leakageproof socket according to claim 2, it is characterized in that: on earth leakage protective socket and power input circuit board that power firestreak, zero line input wires screw (10,9) link to each other, be welded with respectively a right angle triangle or isosceles triangle shape, be installed in point discharge sheet metal in the fixed bin, that be used for discharge, the two metal sheets tip is staggered relatively, and the maintenance certain intervals, the most advanced and sophisticated head ride out of two metal sheets is the same; Distance between the two metal sheets top is less than half of the distance between the two metal sheets bottom.
4. new type electric leakageproof socket according to claim 3, it is characterized in that: this earth leakage protective socket also comprises at least one group of power supply output plughole safety shield device;
This power supply output plughole safety shield device is combined by small slide block (208) and 2 springs (207) of left slider (205), right slide block (206), T font;
Described left slider, right slide block are arranged in a crossed manner, and the small slide block of described left slider, right slide block and T font is placed on power firestreak, zero line output plughole top;
Described spring is arranged on and intersects between the described left slider of placing, the right slide block;
When attaching plug is not inserted in the earth leakage protective socket; left slider (205); the small slide block (208) of right slide block (206) and T font is with power firestreak; zero line output conduction sleeve covers; in the time of in attaching plug is inserted into earth leakage protective socket; under the effect of the blade on the attaching plug; left slider (205); the mobile power firestreak that exposes its below of the small slide block (208) of right slide block (206) and T font; zero line output conduction sleeve; attaching plug is inserted into power firestreak; in the zero line output conduction sleeve; power supply output is arranged; when attaching plug is extracted in the earth leakage protective socket; under the effect of spring (207); left slider (205); the small slide block (208) of right slide block (206) and T font returns to initial position, with the power firestreak of its below; zero line output conduction sleeve covers.
5. new type electric leakageproof socket according to claim 4 is characterized in that: this earth leakage protective socket also comprises two whiles and simulation leakage current generating switch (KR-4 and KR-6) reset button (8) interlock, combination;
The simulation leakage current generating switch (KR-4 and KR-6) of this combination is arranged on below or the next door of the release (28) in the mechanical release device that resets/trip; Wherein,
A simulation leakage current generating switch (KR-4) is made of electric-conductor (72A) and metal clips (72); Another simulation leakage current generating switch (KR-6) is made of electric-conductor (66) and metal clips (88);
One end of the electric-conductor (72A) of described formation simulation leakage current generating switch (KR-4) links to each other the unsettled below that is positioned at metal clips (72) of the other end with the power input zero line that passes differential differentiating transformer (19) through controllable silicon (V4); The unsettled top that is positioned at electric-conductor (72A) of one end of metal clips (72), the other end links to each other with an end of the metal clips (88) that consists of another simulation leakage current generating switch (KR-6), and by current-limiting resistance (R6), the indicator light (V5) that correctly powers on links to each other with the power input zero line that passes differential differentiating transformer (19), simultaneously, also link to each other with the power input live wire that passes differential differentiating transformer (19) by tripping coil (L3), simultaneously, also by rectifier diode (V1), resistance (R1) links to each other with the power input (6) of control chip (IC1);
Consist of the unsettled top that is positioned at another electric-conductor (66) one ends of the other end of the metal clips (88) of another simulation leakage current generating switch (KR-6), the other end of this electric-conductor (66) links to each other with the power input zero line through current-limiting resistance (R4);
When reset button was in trip status and reset mode, the simulation leakage current generating switch (KR-4 and KR-6) of described 2 combinations was in off-state simultaneously; When reset button was pressed, the simulation leakage current generating switch (KR-4 and KR-6) of described 2 combinations was closed simultaneously, produced the simulation leakage current, disconnected immediately simultaneously at any time.
6. it is characterized in that according to claim 4 or 5 described new type electric leakageproof sockets: this earth leakage protective socket also includes a circuit working switch (KR-2) with described reset button interlock; This circuit working switch (KR-2) is made of the 5th sheet metal (88) and the 6th sheet metal (67); Wherein,
One end of described the 5th sheet metal (88) is welded on the circuit board (18), by wire through tripping coil (L3) with pass differential differentiating transformer (19) power input live wire and link to each other, other end riveted joint has a contact (68A);
There is a contact (67A) the unsettled top that is positioned at described the 5th sheet metal (88) of one end of described the 6th sheet metal (67) in its end riveted joint; The other end be welded on the circuit board by controllable silicon with pass differential differentiating transformer (19) power input zero line and link to each other;
When reset button was in trip status, circuit working switch (KR-2) disconnected, and whole leakage current detection protection circuit is not charged; After reset button resetted, circuit working switch (KR-2) closure provided working power by circuit working switch (KR-2) for whole leakage current detection protection circuit.
7. new type electric leakageproof socket according to claim 6, it is characterized in that: be provided with two indicator lights in this earth leakage protective socket, one is the indicator light (V5) that correctly powers on, and another is relay indicating light (V3); Described reset button is before resetting, and (V5) is bright for the described indicator light that correctly powers on; Reset button rear two indicator lights that reset are all bright.
8. new type electric leakageproof socket according to claim 7; it is characterized in that: this earth leakage protective socket has the function of the wiring error of preventing; if the installer is connected on the earth leakage protective socket power output end the power line mistake in the wall; correct power-up state indicator light (V5) does not work; press reset button and can not be reset all the time, prove false wiring, only have wiring correct; correct power-up state indicator light (V5) is bright, and reset button just can reset.
9. new type electric leakageproof socket according to claim 8, it is characterized in that: this earth leakage protective socket has three kinds of status display function, the first is the show state function that powers on, and the second is show state function working properly, and the third is wrong reverse wiring Presentation Function;
Before the reset button proper reset, (V5) is bright for the indicator light that correctly powers on, and after reset button resetted, (V3) was bright for relay indicating light; When reset button was prevented from resetting, the indicator light (V5) that correctly powers on did not work, expression wiring error.
10. new type electric leakageproof socket according to claim 9, it is characterized in that: this earth leakage protective socket has three kinds of status switches that link with reset button: simulation leakage current generating switch (KR-4 and KR-6), circuit working switch (KR-2), power supply main power switch (KR-2-1, KR-2-2, KR-3-1, KR-3-2);
When reset button is in trip status, described power supply main power switch, circuit working switch and simulation leakage current generating switch are in off-state;
When reset button was pressed, described power supply main power switch and circuit working switch were in off-state, described simulation leakage current generating switch closure;
After reset button resetted, described simulation leakage current generating switch was in off-state, and described power supply main power switch and circuit working switch are in closure state.
11. new type electric leakageproof socket according to claim 10, it is characterized in that: have at least two mechanical holes, a mechanical trip hole (31B) and a bonnet lock hole (31) on the end face of the snap close (30) in the described end-of-life positive mechanical tripgear;
Described mechanical trip hole (31B) is located at the hook pin 99A of plastics draw piece (99) to straight below; When reset button was trip status, described bonnet lock hole (31) was the dislocation shape with the bottom surface (41) of reset guide post (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152951 CN102237614B (en) | 2010-04-22 | 2010-04-22 | Electricity leakage protection socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152951 CN102237614B (en) | 2010-04-22 | 2010-04-22 | Electricity leakage protection socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102237614A CN102237614A (en) | 2011-11-09 |
| CN102237614B true CN102237614B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010152951 Expired - Fee Related CN102237614B (en) | 2010-04-22 | 2010-04-22 | Electricity leakage protection socket |
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| Country | Link |
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| CN (1) | CN102237614B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221801A (en) * | 2017-08-10 | 2017-09-29 | 王建刚 | A kind of novel bridge facility |
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| CN102801017B (en) * | 2012-08-24 | 2014-08-06 | 黄德富 | Leakage protection socket with sparking preventing function |
| CN103268844B (en) * | 2013-05-23 | 2015-11-18 | 浙江三蒙电气科技有限公司 | A kind of with mandatory dropout residual current earth fault earth leakage protective socket |
| CN104180826B (en) * | 2013-05-27 | 2016-12-28 | 上海汽车集团股份有限公司 | The device that in monitoring automobile engine nacelle, pipeline or wire harness are interfered |
| CN104143812A (en) * | 2014-07-30 | 2014-11-12 | 黄华道 | Electric leakage detection protection circuit |
| CN104753021A (en) * | 2015-04-17 | 2015-07-01 | 深圳市良辉科技有限公司 | Leakage protecting device with forcible tripping function |
| CN104753022A (en) * | 2015-04-17 | 2015-07-01 | 深圳市良辉科技有限公司 | Earth leakage protector with forced tripping function |
| CN104901264A (en) * | 2015-05-28 | 2015-09-09 | 深圳市良辉科技有限公司 | Earth leakage protection apparatus with compulsory releasing function |
| CN104901271A (en) * | 2015-05-28 | 2015-09-09 | 深圳市良辉科技有限公司 | Earth leakage protection apparatus with compulsory tripping function |
| CN104934926A (en) * | 2015-05-28 | 2015-09-23 | 深圳市良辉科技有限公司 | Leakage protection apparatus capable of forced tripping |
| CN109390730B (en) * | 2017-08-14 | 2024-02-27 | 苏州益而益电器制造有限公司 | Leakage protection plug |
| CN110534954B (en) * | 2019-09-27 | 2021-08-06 | 王嘉炜 | Three-plug power supply protection seat for high-speed railway rolling stock |
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| CN2476889Y (en) * | 2001-06-07 | 2002-02-13 | 黄华道 | Earth leakage protection socket |
| CN200994025Y (en) * | 2006-01-11 | 2007-12-19 | 黄华道 | Leakage protection socket |
| CN201018127Y (en) * | 2007-01-17 | 2008-02-06 | 黄华道 | Novel leakage protection socket |
| CN101162814A (en) * | 2006-10-13 | 2008-04-16 | 黄华道 | Creepage protecting socket |
| CN201107823Y (en) * | 2007-09-30 | 2008-08-27 | 黄华道 | Novel earth leakage protection socket |
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Patent Citations (5)
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| CN2476889Y (en) * | 2001-06-07 | 2002-02-13 | 黄华道 | Earth leakage protection socket |
| CN200994025Y (en) * | 2006-01-11 | 2007-12-19 | 黄华道 | Leakage protection socket |
| CN101162814A (en) * | 2006-10-13 | 2008-04-16 | 黄华道 | Creepage protecting socket |
| CN201018127Y (en) * | 2007-01-17 | 2008-02-06 | 黄华道 | Novel leakage protection socket |
| CN201107823Y (en) * | 2007-09-30 | 2008-08-27 | 黄华道 | Novel earth leakage protection socket |
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| CN107221801A (en) * | 2017-08-10 | 2017-09-29 | 王建刚 | A kind of novel bridge facility |
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|---|---|
| CN102237614A (en) | 2011-11-09 |
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