CN200947507Y - Creepage protecting socket - Google Patents
Creepage protecting socket Download PDFInfo
- Publication number
- CN200947507Y CN200947507Y CN 200620023114 CN200620023114U CN200947507Y CN 200947507 Y CN200947507 Y CN 200947507Y CN 200620023114 CN200620023114 CN 200620023114 CN 200620023114 U CN200620023114 U CN 200620023114U CN 200947507 Y CN200947507 Y CN 200947507Y
- Authority
- CN
- China
- Prior art keywords
- power
- sheet metal
- zero
- earth leakage
- leakage protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a creepage prevention socket which has the end-life detection protective function and is characterized in that: a pair of flexible metal sheets connected with the power output end are additionally arranged on the circuit board of the socket, a pair of moving contacts are arranged on the metal sheets; two pairs of stationary contacts are arranged on the power output conductor; the two pairs of stationary contract on the power output conductor correspond to the moving contacts on the power input metal sheet and on the flexible metal sheet, and thus form four pairs of switches. The circuit board is additionally provided with an end-life detection circuit, which can automatically detect the creepage protective function after the socket is connected with the power supply. The end-life detection circuit can stop the repositing button from reposition if the end-life of the socket is detected so that the load end of the socket and the power output socket have no power output and the failure state indicator is switched on displaying the end of life and reminding the user to replace the creepage protective socket in time. The utility model has complete function, good safety performance and can surely guarantee the personal safety of the users and the safety of the electric appliances.
Description
Technical field
The utility model relates to a kind of supply socket with creepage protection function, refers to a kind of earth leakage protective socket that any parts just can carry out life-span stop detection to earth leakage protective socket automatically and show testing result that need not to operate especially; In addition, this earth leakage protective socket can also be threaded off by force by mechanical structure, cuts off the power supply output of socket.
Background technology
Along with the continuous development of earth leakage protective socket (being called for short GFCI) industry, people require more and more higher to the safety in utilization of earth leakage protective socket.Hope is in the earth leakage protective socket use, and its inner components and parts lost efficacy when its end-of-life, during the forfeiture creepage protection function, can in time remind the user, changes new product.Yet; common in the market earth leakage protective socket does not have life end checking function; whether the user can't detect its end-of-life before using earth leakage protective socket; so; occurred when earth leakage protective socket end-of-life; the user is still still unaware; continue to use; push its reset button; reset button still can reset; the single-phase three-wire power supply output plughole of the load output of earth leakage protective socket and receptacle face still has power supply output, misleads the user and continues to use.When leaky occurring,, very easily cause the get an electric shock generation of dead accident of user because this earth leakage protective socket do not had any protective effect.
Summary of the invention
In view of the foregoing, main purpose of the present utility model provide a kind of need not to operate any parts just can be automatically to earth leakage protective socket whether still have creepage protection function promptly whether end-of-life detect and show the earth leakage protective socket of testing result.When the earth leakage protective socket inner member is intact, can set up correct reset mechanism automatically reset button is resetted, after resetting, normal condition indicator light Chang Liang illustrates that earth leakage protective socket can operate as normal; When earth leakage protective socket inner member open circuit or short circuit are end-of-life; the utility model stops reset button to reset; make the load output of earth leakage protective socket and the single-phase three-wire power supply output plughole of receptacle face all not have power supply output; show earth leakage protective socket end-of-life by the malfunction indicator light simultaneously; remind the user in time to change new product, avoided when leaky occurring because of earth leakage protective socket end-of-life the generation of dead accident but its user who still has power supply output to cause gets an electric shock.
Another purpose of the present utility model provides a kind of earth leakage protective socket with mechanical tripping function.When the inefficacy of the components and parts in the earth leakage protective socket is end-of-life, can make earth leakage protective socket tripping operation/dropout mechanically, cut off its power supply output by force.
For achieving the above object, the utility model by the following technical solutions: a kind of earth leakage protective socket, it by housing, be installed in the earth leakage protective socket realized in the housing and have/circuit board of unregulated power output constitutes; It is characterized in that: the differential differentiating transformer that elasticity power firestreak input sheet metal, elasticity zero-power line input sheet metal are installed, is used to detect leakage current on described circuit board with control the tripgear whether this elasticity power firestreak, zero line input sheet metal and socket power output conductor contact;
Described socket power output conductor comprises the power firestreak output that is with power firestreak output connection screw that is welded on the circuit board, be welded on the zero-power line output that is with zero-power line output connection screw on the circuit board and be arranged on power firestreak output conductor, the zero-power line output conductor of housing middle layer bracket both sides;
One end of power firestreak input sheet metal passes described differential differentiating transformer and is welded on the circuit board, links to each other with power firestreak in the wall by power firestreak input wires screw, and the other end is provided with a moving contact; One end of zero-power line input sheet metal passes described differential differentiating transformer and is welded on the circuit board, links to each other with zero-power line in the wall by zero-power line input wires screw, and the other end is provided with a moving contact;
The power firestreak output is welded on the circuit board with the elastic sheet metal contact that is arranged on circuit board top, and links to each other with power firestreak output connection screw, is provided with a moving contact at the other end of elastic sheet metal; The zero-power line output is welded on the circuit board with the elastic sheet metal contact that is arranged on circuit board top, and links to each other with zero-power line output connection screw, is provided with a moving contact at the other end of elastic sheet metal;
The power firestreak output conductor that is arranged on housing middle layer bracket both sides is provided with two sheet clip leaf wings, and two sheet clip leaf wings pass from the firewire jack of two supply hubs of receptacle face respectively; Be arranged on the zero-power line output conductor of housing middle layer bracket both sides and also be provided with two sheet clip leaf wings, two sheet clip leaf wings pass from the zero line jack of two supply hubs of receptacle face respectively;
On the power firestreak output conductor, be provided with two fixed contacts; On the zero-power line output conductor, be provided with two fixed contacts;
Moving contact on the power firestreak input sheet metal contact with a fixed contact on the power firestreak output conductor/or disconnection formation pair of switches; Moving contact on the elastic sheet metal contacts with another fixed contact on the power firestreak output conductor/or disconnect and constitute pair of switches; Moving contact on the zero-power line input sheet metal contact with a fixed contact on the zero-power line output conductor/or disconnection formation pair of switches; Moving contact on the elastic sheet metal contacts with another fixed contact on the zero-power line output conductor/or disconnect and constitute pair of switches; Come to four pairs of contacts and constitute live wire, two groups of four pairs of switches of zero line;
Position above moving contact on the described power firestreak input sheet metal and the moving contact on the elastic sheet metal are carried arm in the tripgear side is cross one another; Position above moving contact on the described zero-power line input sheet metal and the moving contact on the elastic sheet metal are carried arm in the tripgear side also is mutual intersection.
Described tripgear comprises release, snap close, latch spring, dropout lever and tripping coil; Release is a cylinder, is positioned at the below of reset button, and its top is provided with a vertical central perforation; Its left and right sides stretches out to form and carries arm; Described elasticity power supply input sheet metal and elastic sheet metal are positioned at the top that arm is carried in these release both sides;
In the bottom of release, cross release and be provided with " L " shape snap close of movably making by metal material, also be provided with a bonnet lock hole at the end face of snap close;
Between the sidewall of release and snap close sidewall, be provided with a circular recess, be built-in with a latch spring; Be provided with a tripping coil that is built-in with movable core in the outside of snap close sidewall; The built-in movable core of tripping coil faces the sidewall of snap close;
Be provided with a hole in the snap close top end, be installed with one " 7 " font dropout lever in the hole, the end face of this dropout lever is positioned at earth leakage protective socket testing button below;
Described release, snap close, latch spring and four on dropout lever are connected one of composition mutually can free movable integral body.
In described housing, also be provided with a switch that links with reset button, it is made up of fixed mount, two spring leafs, one of them spring leaf links to each other with life terminating detection judging pin of chip 2 in the control circuit by resistance, electric capacity, and another spring leaf links to each other with life terminating detection judging pin of chip 4.
Between the bottom surface and circuit board of described release, also be provided with a power condition switch of making by elastic metallic material, this power condition switch and reset button interlock, it is made of two spring leafs, the pin 5 that leakage current in one of them spring leaf and the control circuit detects control chip links to each other, and another spring leaf links to each other with life terminating detection judging pin of chip 1 by resistance.
The utility model also is provided with two and is used to indicate the whether indicator light of end-of-life of earth leakage protective socket on described circuit board, one is the normal condition indicator light, and one is the malfunction indicator light; Be provided with a light lead pipe of vertically placing on indicator light, the top of this light lead pipe is positioned at the indicator lamp hole below of cap surface, the anaclasis that indicator light sent is arrived the surface of earth leakage protective socket by the light lead pipe;
The control signal output ends of controlling the life terminating detection judging chip in the bright or control end that goes out of two indicator lights and the control circuit links to each other.It is bright or the malfunction indicator light is bright that the life terminating detection judging chip is controlled the normal condition indicator light respectively according to the state of earth leakage protective socket.
Because the utility model adopts above technical scheme; make the utility model not only have creepage protection function; and; after power firestreak in the utility model and wall, zero line are connected; need not to operate any parts and just can detect whether end-of-life of earth leakage protective socket automatically, and show testing result by indicator light.When earth leakage protective socket does not have end-of-life, when still having creepage protection function, can set up correct reset mechanism automatically reset button is resetted; after resetting; normal condition indicator light Chang Liang illustrates that earth leakage protective socket can operate as normal, and earth leakage protective socket has power supply output.When current leakage jack life termination; the life-span stop detection control chip stops reset button can not be reset all the time; make the power supply output plughole and the load output of earth leakage protective socket not have electric power output all the time; the malfunction indicator light is bright; remind the user to note the earth leakage protective socket that in time more renews; avoid when leaky occurring because of earth leakage protective socket end-of-life or its inner member fault cisco unity malfunction the generation of dead accident but the user that its people has power supply output to cause gets an electric shock.In addition, when certain the spare and accessory parts fault in the earth leakage protective socket, particularly when the tripping coil fault can't operate as normal, can cut off the power supply output of socket mechanically by force by pushing testing button.The utility model function is complete, fail safe good, and is safe in utilization, can guarantee user's personal safety.
Description of drawings
Fig. 1 is the three-dimensional decomposition texture schematic diagram of the utility model
Fig. 2 is a front view of the present utility model
Fig. 3 removes front view behind the loam cake for the utility model
Fig. 4 is that each module position concerns schematic diagram on the utility model circuit board
Fig. 5-1 is the C-C partial sectional view of Fig. 3, socket initial condition schematic diagram
Fig. 5-2 is the C-C partial sectional view of Fig. 3, socket normal operating conditions schematic diagram
Fig. 5-3 is the C-C partial sectional view of Fig. 3, pushes testing button socket tripped condition schematic diagram
Fig. 5-4 is the C-C partial sectional view of Fig. 3, pushes testing button and makes socket trip status schematic diagram by force
Fig. 6-1 is the A-A partial sectional view of Fig. 3, socket tripped condition schematic diagram
Fig. 6-2 is the A-A partial sectional view of Fig. 3, socket reset mode schematic diagram
Fig. 7 is the utility model control circuit loop control theory block diagram
Fig. 8 is the utility model control circuit physical circuit figure
Embodiment
As shown in Figure 1, the disclosed earth leakage protective socket of the utility model mainly is made of housing, the circuit board 18 that is installed in the housing.This circuit board 18 not only has the control earth leakage protective socket and has/function of unregulated power output; and, also have need not to operate any parts can be automatically to earth leakage protective socket whether end-of-life, whether still have the function that creepage protection function detected and showed testing result.
Described housing is combined by loam cake 2, insulation middle layer bracket 3 and base 4; Between loam cake 2 and middle layer bracket 3, be provided with metal ground connection mounting panel 1; Between middle layer bracket 3 and base 4, be provided with circuit board 18.
As shown in Figure 1 and Figure 2, on loam cake 2, have power supply output plughole 5,6, reset button hole 8-A, testing button hole 7-A and status indicator lamp hole 30-A.Be provided with reset button (RESET) 8 and testing button (TEST) 7 in reset button hole 8-A and testing button hole 7-A, reset button 8 and testing button 7 pass metal ground connection mounting panel 1 and 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 base 4 on groove 4-B fix.
Metal ground connection mounting panel 1 links to each other with the earth by earthing screw 13-A (as figure, 1 shown in Figure 2), lead.On metal ground connection mounting panel 1, be provided with ground connection blade 11,12 with the ground hole corresponding section of loam cake 2 power supply output plugholes 5,6.
As Fig. 1, shown in Figure 3, a power firestreak output conductor 14 and a zero-power line output conductor 13 are installed in the both sides of insulation middle layer bracket 3.At the two ends of power supply output conductor 13,14, be provided with sheet clip leaf wing 60,61,62,63 with null line hole, the corresponding section, live wire hole of loam cake 2 power supply output plugholes 5,6.On power supply output conductor 13,14, be respectively equipped with fixed contact 15,52 and 16,53, form two pairs of fixed contacts 15,16 and 52,53.
As shown in Figure 1, base 4 is used to hold 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 utility model is mounted in the circuit board 18 in the housing, and 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, detect whether end-of-life and show the function of testing result of earth leakage protective socket.
As Fig. 1, shown in Figure 4, this circuit board 18 is provided with two elasticity zero-power lines, live wire input sheet metal 50,51.One end of elasticity power supply input sheet metal 50,51 is bent downwardly 90 degree, passing differential differentiating transformer 19 is welded on the circuit board 18, link to each other with zero-power line, live wire input wires screw 9,10 by input wires sheet 24,25, zero-power line input wires screw 9 links to each other with zero-power line in the wall by lead, and power firestreak input wires screw 10 links to each other with power firestreak in the wall by lead; The other end of elasticity power supply input sheet metal 50,51 is respectively equipped with moving contact 54 and 55. Moving contact 54,55 respectively be arranged on middle layer bracket 3 on power supply output conductor 13,14 on fixed contact 52,53 (as shown in Figure 3) corresponding.Above circuit board 18, both sides also are provided with two elastic sheet metals 20,21; One end of elastic sheet metal 20,21 is welded on the circuit board, and links to each other with the power supply output connection screw 109,110 that is arranged on base 4 both sides with zero-power line, 80,81 contacts of live wire output; The other end is provided with moving contact 22,23, this moving contact 22,23 respectively with power supply output conductor 13,14 on fixed contact 15,16 corresponding (as shown in Figure 3).As shown in Figure 8, moving contact 55 and the fixed contact on the power firestreak output conductor 14 53 on the above-mentioned power firestreak input sheet metal 51 constitutes pair of switches K
R2-1Moving contact 54 and the fixed contact on the zero-power line output conductor 13 52 on the zero-power line input sheet metal 50 constitute pair of switches K
R2-2Fixed contact 16 and the moving contact on the elastic sheet metal 21 23 on the power firestreak output conductor 14 constitute pair of switches K
R3-1Fixed contact 15 and the moving contact on the elastic sheet metal 20 22 on the zero-power line output conductor 13 constitute pair of switches K
R3-2Moving contact, fixed contact on power supply input sheet metal 50,51, power supply output conductor 13,14 and the elastic sheet metal 20,21 constitute zero line, two groups of four couples of mains switch K of live wire altogether
R2-1, K
R2-2, K
R3-1, K
R3-2
Shown in Fig. 1, Fig. 4, Fig. 5-1, on circuit board 18, also be provided with can make elasticity power supply input sheet metal 50,51 is connected with power supply output conductor 13,14 electric power/or disconnect and by power supply output conductor 13,14 make elastic sheet metal 20,21 charged/or cut off the power supply, and then make power output end 80,81 charged/or the tripgear that cuts off the power supply.This tripgear comprises release 28, snap close 30, latch spring 34, dropout lever 37 and tripping coil 26.
Be provided with a vertical central perforation 29 at the top of release 28, the reset guide post 35 that is with back-moving spring 91 that is embedded in reset button 8 bottom surfaces can move up and down along central perforation 29.Have the locked groove 36 of a circle depression in the bottom of reset guide post 35, near its bottom.In the bottom of release 28, cross release 28 and be provided with " L " shape snap close 30 of movably making by metal material.End face at snap close 30 is provided with bonnet lock hole 31.Between the sidewall of release 28 and snap close 30 inboards, be provided with a circular recess 33, be built-in with 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 the sidewall of snap close 30.Be provided with a protective cover 41 above tripping coil 26, middle layer bracket one end is pushed down protective cover 41.
Be provided with a hole 32 in the end of snap close 30 end faces, in hole 32, be installed with one " 7 " font dropout lever 37, dropout lever 37 be positioned at testing button 7 below, be provided with a fulcrum 28-A at release 28 near on the sidewall of dropout lever 37, dropout lever 37 leans against on the fulcrum 28-A of release 28 sidewalls.
The utility model can be by making movable core 42 actions that are built in the tripping coil 26; promoting snap close 30 moves; thereby; the reset guide posts 35 that are embedded in below the reset button (RESET) 8 are moved up and down along the central perforation 29 of release 28, the bonnet lock hole 31 of snap close 30 end faces; reset button 8 is resetted or thread off; earth leakage protective socket is had/or non-transformer output; be that the utility model resets reset button 8 by tripgear or threads off, earth leakage protective socket is had/or non-transformer output.
As Fig. 4, shown in Figure 8, the utility model also is provided with the differential differentiating transformer 19 (coil L1, the L2 of Fig. 8) that is used for detecting leakage current on circuit board 18, and power firestreak HOT, zero line WHITE pass differential differentiating transformer.When leaky occurring in the current supply circuit; differential differentiating transformer will detect control chip IC1 (model RV4145) to leakage current by output voltage signal; the controllable silicon V23 the conducting whether 5 pin output control signal of chip IC 1 makes control solenoid 26 have electric current to flow through; make the tripgear action on the circuit board 18; reset button 8 is threaded off; the earth leakage protective socket tripping operation, the output of cutting off the electricity supply.
As shown in Figure 4, also be provided with two and be used to indicate the whether indicator light of end-of-life of earth leakage protective socket on circuit board 18, one is normal condition indicator light G (being V17 among Fig. 8), and one be malfunction indicator light R (being V10 among Fig. 8).Shown in Fig. 6-1, Fig. 6-2; at indicator light G, be provided with a light lead pipe LED1 who vertically places above the R; the top of this light lead pipe LED1 is positioned at the indicator lamp hole 30-A below on loam cake 2 surfaces, and the anaclasis of indicator light R, G being sent by light lead pipe LED1 is to the surface of earth leakage protective socket.
As Fig. 6-1, Fig. 6-2, shown in Figure 8, the utility model also is provided with a K switch that links with reset button 8 (RESET)
R1It is made up of fixed mount 101, two spring leafs 102,103, spring leaf 102 is by resistance R 7, R3, capacitor C 1 and put the pin 2 that latchs flip chip IC2 (model ZQC-051208) that count/resets and link to each other, spring leaf 103 with put the pin 4 that latchs flip chip IC2 that count/resets and link to each other.When reset button is in tripped condition, K switch
R1Spring leaf 102 under the effect on the inclined-plane of reset button side, contact conducting (as Fig. 6-1) with spring leaf 103; When reset button was in reset mode, because the inclined-plane of reset button side moves down, spring leaf 102 resiled, and separates K switch with spring leaf 103
R1Be in not on-state (as Fig. 6-2).K switch with reset button 8 interlocks
R1Be mainly used in the state that detects reset button, and its state transfer is latched flip chip IC2 to putting count/to reset.
As Fig. 5-1, shown in Figure 8, the utility model also is provided with a power condition switch K who is made by elastic metallic material between the bottom surface and circuit board 18 of release 28
R4, it is made of two spring leafs 67,68, the pin 5 that spring leaf 67 and leakage current detect control chip IC1 links to each other, spring leaf 68 by resistance R 10 with put the pin 1 that latchs flip chip IC2 that count/resets and link to each other.This power condition switch K
R4With reset button 8 interlocks, when reset button RESET is pressed, power condition switch K
R4Closure, when reset button RESET is released, power condition switch K
R4Disconnect.
Fig. 7 realizes the logic theory block diagram of earth leakage protective, life end checking function for the utility model control circuit.As shown in the figure, the utility model control circuit comprises and realizes that leakage current detects, reset button resets/threads off main circuit U1, simulation leakage current generating circuit and display circuit U2, reset button reset/trip status identification circuit U3, analog detection feedback circuit U4, resetting voltage testing circuit U5, life terminating detection judging circuit U6, manual test circuit U 7 and indicate normal power supply circuit U 8.
Power input L when earth leakage protective socket
IN, N
INPower on after connecting with power firestreak L, zero line N in the wall, life terminating detection judging circuit U6, IC2 are triggered immediately at simulation detection of electrical leakage state, and this moment, 3 pin of IC2 were high level; 3 pin of IC2 drive the power supply input set electrode of the V14 of self-oscillation emitter coupled logic circuit by R16, trigger controllable silicon V12 and enter instantaneous simulation leakage current detection, promptly produce a simulation leakage current, after main circuit U1 detection, detect the feedback input end 5 of the pulse signal feed-in IC2 correspondence of feedback circuit U4 output normal condition, after the feed-in of feedback signal, it is the 1 pin output high level of IC2 that IC2 among the life terminating detection judging circuit U6 is just forwarded to the reset mode for the treatment of that can normally reset by meal, 3 pin output low levels.The state-detection K switch
R1Still closed, press reset switch 8 after, the state-detection K switch
R1Linked and disconnect, normal condition indicator light circuit U8 is lighted simultaneously.Otherwise, if current leakage jack life termination, just export control signal makes malfunction indicator light Chang Liang to life terminating detection judging circuit U6 always, reminds the user in time to change new product.
The utility model except have power on after; automatically produce simulation leakage current detection earth leakage protective socket and whether still have creepage protection function; whether outside the end-of-life; can also produce the simulation leakage current by pushing testing button (TEST) 7 by manual test circuit U 7, make the earth leakage protective socket tripping operation.
Fig. 8 is the utility model control circuit physical circuit figure.Its main components and parts comprise: detect differential differentiating transformer L1, the L2 of leakage current, leakage current detects control chip IC1, life terminating detection judging chip (putting count/resets latchs flip chip) IC2, self-oscillation emitter coupled logic circuit.Automatically the circuit that produces the simulation leakage current after the utility model powers on is made of the resistance R 2, the rectifier bridge V6-V9 that connect.One end of resistance R 2 and power input live wire L
INLink to each other, the other end is by rectifier bridge V6-V9 and power input zero line N
INLink to each other, after earth leakage protective socket powered on, the resistance R 2 of series connection, rectifier bridge V6-V9 produced the simulation leakage current with live wire and zero line short circuit automatically together.
Because power firestreak and zero line pass magnetic test coil L1 simultaneously, L2, when the live wire that passes magnetic test coil in the circuit and neutral line current vector with when non-vanishing, be when having leakage current in the circuit, if earth leakage protective socket is intact, working, all are normal, magnetic test coil induces the signal input part 1 and 2 of the voltage signal of certain value to leakage current detection control chip IC1 immediately, the 5 pin output control signal of chip IC 1 is given the gate pole of controllable silicon V23, controllable silicon V23 is triggered, conducting, thereby the tripping coil 26 (being L3 among Fig. 8) in the trip gear is got, its inner core 42 is done ballistic motion, makes reset button thread off the output of cutting off the electricity supply; Simultaneously, 1 pin of life terminating detection judging chip IC 2 becomes high level, self-oscillation emitter coupled logic circuit V20 work, and controllable silicon V18 conducting, V17 is bright for the normal condition indicator light.Otherwise, if current leakage jack life termination, the 3 pin output high level of life terminating detection judging chip IC 2, self-oscillation emitter coupled logic circuit V14 work, controllable silicon V11 conducting, V10 is bright for the malfunction indicator light, reminds the user in time to change new product.
As shown in Figure 8, when earth leakage protective socket is intact, work all just often, the 1 pin output high level of life terminating detection judging chip IC 2 is pressed reset button RESET, because K switch
R4With reset button RESET interlock, when pressing reset button RESET, K switch
R4Closed; The controllable silicon V13 conducting that is triggered, tripping coil SOL gets electricly has electric current to flow through, and produces magnetic field, and its built-in iron core action promotes snap close 30 actions in the trip gear of earth leakage protective socket; Shown in Fig. 5-2; the locked groove 36 that is embedded in the reset guide post 35 of reset button RESET bottom is stuck in the lockhole 31 of snap close 30; discharge reset button RESET; driving release 28 moves up; make and be positioned at the elastic sheet metal 50 that the arm top is carried in release 28 both sides; 51; 20; 21 move up thereupon together; make elasticity power supply input sheet metal 50; moving contact 54 on 51; 55 with power supply output conductor 13; fixed contact 52 on 14; 53 contacts; power supply output conductor 13; 14 is charged; the three-way power supply output plughole 5 on earth leakage protective socket surface; 6 have power supply output; and; elastic sheet metal 20; moving contact 22 on 21; 23 with power supply output conductor 13; fixed contact 15 on 14; 16 contacts; make and power output end 80; 81 contacted elastic sheet metals 20; 21 is charged; earth leakage protective socket power output end 80; 81 and the power supply output plughole 5 of receptacle face; 6 have power supply output, earth leakage protective socket operate as normal.
As Fig. 8; shown in Fig. 5-3; press testing button TEST and produce the simulation leakage current; magnetic test coil L1; after L2 (differential differentiating transformer 19) detects leakage current; output voltage signal is given control chip IC1; the 5 pin output high level of chip IC 1 makes the V13 conducting; there is electric current to pass through in the tripping coil 26 (SOL); produce magnetic field; attract built-in iron core 42 bump snap closes 30 wherein; make it mobile; shown in Fig. 5-3; the locked groove 36 of reset guide post 35 bottoms skids off from the bonnet lock hole 31 of snap close 30; reset button 8 is threaded off; release 28 falls; be positioned at release 28 both sides and carry the elastic sheet metal 50 of arm top; 51; 20; 21 fall thereupon together; make elasticity power supply input sheet metal 50; moving contact 54 on 51; 55 with power supply output conductor 13; fixed contact 52 on 14; 53 disconnect; power supply output conductor 13; fixed contact 15 on 14; 16 with elastic sheet metal 20; moving contact 22 on 21; 23 disconnect; make power supply output conductor 13; 14 and elastic sheet metal 20; 21 is not all charged; thereby; make earth leakage protective socket power output end 80; 81 and the power supply output plughole 5 of receptacle face; 6 all do not have power supply output, cut off all power supply outputs of earth leakage protective socket.
The utility model can also make reset button 8 machineries thread off by pushing testing button 7 by force, cuts off the power supply output of earth leakage protective socket.Shown in Fig. 5-4, testing button 7 passes middle layer bracket 3, and its top stands upright on dropout lever 37 tops.Work as current leakage jack life termination; carrying out the simulation leakage current threads off in the time of can't tripping; can continue to push testing button 7 downwards; make the top of testing button 7 withstand the end face of dropout lever 37; making the tail end of dropout lever 37 is that fulcrum rotates with fulcrum 28-B downwards; the sidewall of dropout lever 37 leaves the fulcrum 28-A of release 28 sidewalls; because the perforation 32 that dropout lever 37 passes snap close 30; thereby pulling snap close 30 moves; locked groove 36 on the reset guide post 35 is skidded off from bonnet lock hole 31; reset button 8 is threaded off; release 28 is to the whereabouts; elasticity power supply input sheet metal 50; 51 fall; make its moving contact and power supply output conductor 13; 14 fixed contact disconnects; and then make power output end 80; 81 elastic sheet metals 20 that link to each other; 21 is not charged, power supply output conductor 13; 14 and power output end 80; 81 is not all charged, and earth leakage protective socket load output is a power output end 80; 81 and the power supply output plughole 5 of receptacle face; 6 all do not have power supply output.
As shown in Figure 4, the utility model below elasticity power supply input sheet metal 50,51 moving contacts and elastic sheet metal 20,21 below, the bobbin of tripping coil 26 is provided with two pairs of position-limited blocks 43,44 and 73,74.
Indulge the above; the utility model not only has creepage protection function, and, after the power firestreak in the utility model and wall, zero line are connected; need not to operate any parts and just can detect whether end-of-life of earth leakage protective socket automatically, and show testing result by indicator light.If earth leakage protective socket does not have end-of-life, still have creepage protection function, reset button can normally be resetted, and normal condition indicator light Chang Liang, earth leakage protective socket have power supply output.If current leakage jack life termination; the life-span stop detection control chip stops reset button can not be reset all the time; the power supply output plughole of earth leakage protective socket and load output do not have electric power output all the time, remind the user to note the earth leakage protective socket that in time more renews.In addition, when certain the spare and accessory parts fault in the earth leakage protective socket, particularly when the tripping coil fault can't operate as normal, can cut off the power supply output of socket mechanically by force by pushing testing button.The utility model function is complete, fail safe good, and is safe in utilization, can guarantee user's personal safety.
Claims (8)
1, a kind of earth leakage protective socket, it by housing, be installed in the earth leakage protective socket realized in the housing and have/circuit board (18) of unregulated power output constitutes; It is characterized in that:
Elasticity power firestreak input sheet metal (51), elasticity zero-power line input sheet metal (50) are installed on described circuit board, are used to detect the differential differentiating transformer (19) of leakage current and this elasticity power firestreak of control, zero line and import the tripgear whether sheet metal (50,51) and socket power output conductor (13,14,80,81) contact;
Described socket power output conductor comprises the power firestreak output (81) that is with power firestreak output connection screw (110) that is welded on the circuit board, be welded on the zero-power line output (80) that is with zero-power line output connection screw (109) on the circuit board and be arranged on power firestreak output conductor (14), the zero-power line output conductor (13) of housing middle layer bracket both sides;
One end of power firestreak input sheet metal (51) passes described differential differentiating transformer (19) and is welded on the circuit board (18), links to each other with power firestreak in the wall by power firestreak input wires screw (10), and the other end is provided with a moving contact (55); One end of zero-power line input sheet metal (50) passes described differential differentiating transformer (19) and is welded on the circuit board (18), links to each other with zero-power line in the wall by zero-power line input wires screw (9), and the other end is provided with a moving contact (54);
Power firestreak output (81) is welded on the circuit board with elastic sheet metal (21) contact that is arranged on circuit board (18) top, and link to each other with power firestreak output connection screw (110), be provided with a moving contact (23) at the other end of elastic sheet metal (21); Zero-power line output (80) is welded on the circuit board with elastic sheet metal (20) contact that is arranged on circuit board (18) top, and link to each other with zero-power line output connection screw (109), be provided with a moving contact (22) at the other end of elastic sheet metal (20):
The power firestreak output conductor (14) that is arranged on housing middle layer bracket both sides is provided with two sheet clip leaf wings (62,63), and two sheet clip leaf wings (62,63) pass from the firewire jack of two supply hubs (5,6) of receptacle face respectively; Be arranged on the zero-power line output conductor (13) of housing middle layer bracket both sides and also be provided with two sheet clip leaf wings (60,61), two sheet clip leaf wings (60,61) pass from the zero line jack of two supply hubs (5,6) of receptacle face respectively;
On zero-power line output conductor (13), be provided with two fixed contacts (15 and 52) being provided with two fixed contacts (16 and 53) on the power firestreak output conductor (14);
Moving contact (55) on the power firestreak input sheet metal (51) contact with the fixed contact (53) on the power firestreak output conductor (14)/or disconnection formation pair of switches; Moving contact (23) on the elastic sheet metal (21) contacts with fixed contact (16) on the power firestreak output conductor (14)/or disconnect and constitute pair of switches; Moving contact (54) on the zero-power line input sheet metal (50) contact with the fixed contact (52) on the zero-power line output conductor (13)/or disconnection formation pair of switches; Moving contact (22) on the elastic sheet metal (20) contacts with fixed contact (15) on the zero-power line output conductor (13)/or disconnect and constitute pair of switches; Come to four pairs of contacts (55 and 53,23 and 16,54 and 52,22 and 15) and constitute live wire, two groups of four pairs of switches of zero line.
2, earth leakage protective socket according to claim 1 is characterized in that: the position above moving contact (55) on the described power firestreak input sheet metal (51) and the moving contact (23) on the elastic sheet metal (21) are carried arm in the tripgear side is cross one another;
Position above moving contact (54) on the described zero-power line input sheet metal (50) and the moving contact (22) on the elastic sheet metal (20) are carried arm in the tripgear side also is mutual intersection.
3, earth leakage protective socket according to claim 1 and 2 is characterized in that: described tripgear comprises release (28), snap close (30), latch spring (34), dropout lever (37) and tripping coil (26);
Described release (28) is a cylinder, is positioned at the below of reset button (8), and its top is provided with a vertical central perforation (29); Its left and right sides stretches out to form and carries arm; Described elasticity power supply input sheet metal (50,51) and elastic sheet metal (20,21) are positioned at the top that arm is carried in this release (28) both sides;
In the bottom of release (28), cross release and be provided with " L " shape snap close (30) of movably making by metal material, also be provided with a bonnet lock hole (31) at the end face of snap close (30);
Between the sidewall of release (28) and snap close (30) sidewall, be provided with a circular recess, be built-in 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) sidewall; The built-in movable core (42) of tripping coil (26) faces the sidewall of snap close (30);
Be provided with a hole (32) in snap close (30) top end, be installed with one " 7 " font dropout lever (37) in hole (32), the end face of this dropout lever (37) is positioned at earth leakage protective socket testing button below;
Described release (28), snap close (30), latch spring (34) and (37) four on dropout lever are connected one of composition mutually can free movable integral body.
4, earth leakage protective socket according to claim 3 is characterized in that: also be provided with a switch (K who links with reset button in described housing
R1), it is made up of fixed mount (101), two spring leafs (102,103), spring leaf (102) links to each other by the pin 2 of the life terminating detection judging chip (IC2) in resistance (R7, R3), electric capacity (C1) and the control circuit, and another spring leaf (103) links to each other with the pin 4 of life terminating detection judging chip (IC2).
5, earth leakage protective socket according to claim 4 is characterized in that: between the bottom surface and circuit board (18) of described release (28), also be provided with a power condition switch (K who is made by elastic metallic material
R4), this power condition switch (K
R4) link with reset button, it is made of two spring leafs (67,68), the pin 5 that leakage current in spring leaf (67) and the control circuit detects control chip (IC1) links to each other, and another spring leaf (68) passes through resistance (R10) and links to each other with the pin 1 of life terminating detection judging chip (IC2).
6, earth leakage protective socket according to claim 4, it is characterized in that: on described circuit board () (18), also be provided with two and be used to indicate the whether indicator light of end-of-life of earth leakage protective socket, one is normal condition indicator light (G), and one is malfunction indicator light (R); On indicator light (G, R), be provided with a light lead pipe (LED1) of vertically placing, the top of this light lead pipe (LED1) is positioned at indicator lamp hole (30-A) below on loam cake (2) surface, and the anaclasis of indicator light (R, G) being sent by light lead pipe (LED1) is to the surface of earth leakage protective socket;
The control signal output ends of controlling the life terminating detection judging chip in the bright or control end that goes out of two indicator lights and the control circuit links to each other.
7, earth leakage protective socket according to claim 6 is characterized in that: the drive circuit of the control end of described malfunction indicator light (R) and simulation leakage current generative circuit links to each other by the pin 3 of the life terminating detection judging chip (IC2) in auto-excitation type pulse isolation transformer (L4) or optical coupling chip (IC3) and the control circuit;
The control end of described normal condition indicator light (G) links to each other by the pin 1 of the life terminating detection judging chip (IC2) in auto-excitation type pulse isolation transformer (L5) or optical coupling chip (IC4) and the control circuit.
8, earth leakage protective socket according to claim 7 is characterized in that: the below at described elasticity power supply input sheet metal (50,51) moving contact is provided with position-limited block (73,74); Be provided with position-limited block (43,44) in the below of described elastic sheet metal (20,21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023114 CN200947507Y (en) | 2006-06-19 | 2006-06-19 | Creepage protecting socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023114 CN200947507Y (en) | 2006-06-19 | 2006-06-19 | Creepage protecting socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200947507Y true CN200947507Y (en) | 2007-09-12 |
Family
ID=38734570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620023114 Expired - Fee Related CN200947507Y (en) | 2006-06-19 | 2006-06-19 | Creepage protecting socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200947507Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543370A (en) * | 2012-07-17 | 2014-01-29 | 柯伯呈 | Quantization system of leakage detection device |
| TWI453430B (en) * | 2012-05-23 | 2014-09-21 | ||
| WO2016154961A1 (en) * | 2015-04-01 | 2016-10-06 | Eaton Corporation | Electrical units with onboard electronic monitoring and related methods |
| CN107490993A (en) * | 2016-06-12 | 2017-12-19 | 五冶集团上海有限公司 | A kind of switch panel control module of Intelligent housing in room |
-
2006
- 2006-06-19 CN CN 200620023114 patent/CN200947507Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI453430B (en) * | 2012-05-23 | 2014-09-21 | ||
| CN103543370A (en) * | 2012-07-17 | 2014-01-29 | 柯伯呈 | Quantization system of leakage detection device |
| WO2016154961A1 (en) * | 2015-04-01 | 2016-10-06 | Eaton Corporation | Electrical units with onboard electronic monitoring and related methods |
| US10855067B2 (en) | 2015-04-01 | 2020-12-01 | Eaton Intelligent Power Limited | Electrical units with onboard electronic monitoring and related methods |
| CN107490993A (en) * | 2016-06-12 | 2017-12-19 | 五冶集团上海有限公司 | A kind of switch panel control module of Intelligent housing in room |
| CN107490993B (en) * | 2016-06-12 | 2020-09-11 | 五冶集团上海有限公司 | Switch panel control module for controlling smart home in room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201018127Y (en) | Novel leakage protection socket | |
| CN101047294A (en) | Leakage protection socket | |
| CN101980351B (en) | Rocker-type single-wire double-connection double-insurance switch | |
| CN101192731B (en) | Secure leakage protection jack with life termination detection function | |
| CN200947507Y (en) | Creepage protecting socket | |
| CN101162814A (en) | Creepage protecting socket | |
| CN201018126Y (en) | Creepage protecting socket with service life expiration detecting function | |
| CN2741232Y (en) | Electromagnetic leakage preventing socket | |
| CN200953413Y (en) | Electrical leakage protection socket with service life stopping detection and detection result prompting function | |
| CN101136548B (en) | Creepage protecting socket | |
| CN201038480Y (en) | Creepage protecting socket | |
| CN201174364Y (en) | Socket type earthing fault circuit breaker | |
| CN101227044B (en) | New type electric leakageproof socket | |
| CN101162815B (en) | Creepage protecting socket | |
| CN200972969Y (en) | Leakage protection socket | |
| CN101562302A (en) | Novel earth leakage protection socket | |
| CN200972971Y (en) | Leakage protection socket with service life stop detection function | |
| CN200990455Y (en) | Electricity leakage protection socket with service life terminal detection function | |
| CN2802781Y (en) | Electromagnetic power plug with earth leakage and arc protection function | |
| CN200947539Y (en) | Creepage protecting socket | |
| CN101645566A (en) | Leakage protection socket | |
| CN101222100A (en) | Creepage protecting socket with life end checking function | |
| CN2893982Y (en) | Earth leakage protective socket | |
| CN200972968Y (en) | Leakage protection socket | |
| CN200972972Y (en) | Safety leakage protection socket with service life stop detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20120619 |