CN203607348U - Arc fault breaker - Google Patents
Arc fault breaker Download PDFInfo
- Publication number
- CN203607348U CN203607348U CN201320681266.8U CN201320681266U CN203607348U CN 203607348 U CN203607348 U CN 203607348U CN 201320681266 U CN201320681266 U CN 201320681266U CN 203607348 U CN203607348 U CN 203607348U
- Authority
- CN
- China
- Prior art keywords
- arc
- moving contact
- contact arm
- fault circuit
- electric
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000037361 pathway Effects 0.000 claims description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 12
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000003447 ipsilateral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- -1 wherein Chemical group 0.000 description 1
Images
Abstract
An arc fault breaker comprises an insulating shell, a power source input end and a power source output end. A first electric passage and a second electric passage are formed between the power source input end and the power source output end. The arc fault breaker also comprises a machine core assembly. The machine core assembly comprises a first moving contact arm, a second moving contact arm, a control circuit board, an arc detection assembly, and a trip execution assembly, wherein the first moving contact arm is electrically connected to the first electric passage, the second moving contact arm is electrically connected to the second electric passage, the arc detection assembly is electrically connected to the control circuit board and is used for detecting arc signals and making the control circuit board send trip signals, and the trip execution assembly is electrically connected to the control circuit board and is used for receiving the trip signals from the control circuit board and thus disconnecting the first moving contact arm and the first electric passage and/or disconnecting the second moving contact arm and the second electric passage. The arc fault breaker can shut off the power immediately when detecting the arc signals, thereby preventing fire disasters.
Description
Technical field
The utility model relates to a kind of arc-fault circuit interrupter, especially a kind of arc-fault circuit interrupter that is applied to appliance plug.
Background technology
Along with expanding economy, people's living standard improves constantly, household electrical appliance more and more enter our life, when having facilitated our life, also bring Electrical Safety hidden danger to us, particularly along with increase the service time of electrical appliance, make between power line because power line is aging or power line and ground between easily produce electric arc, and then ignite combustible and cause fire to happen occasionally, bring massive losses to the people's life and property.Therefore on market, need a kind of product that arc signal can be detected and cut off the electricity supply at once, stop fire to occur in the time that electric arc occurs.
Utility model content
Therefore, an object of the present utility model is to provide a kind of arc-fault circuit interrupter, comprising: insulation shell; The power output end that extends to the power input in described insulation shell and extend out from described insulation shell forms the first electric pathway and the second electric pathway between described power input and described power output end; Cartridge assemblies, it is contained in described insulation shell, comprising: the first and second moving contact arms, wherein, described the first moving contact arm is electrically connected on described the first electric pathway, and described the second moving contact arm is electrically connected on described the second electric pathway; Control circuit board; Arc-detection components, it is electrically connected on described control circuit board, for detection of arc signal so that described control circuit board sends trip signal; Dropout executive module, it is electrically connected on described control circuit board, and it is for receiving from the trip signal of described control circuit board to throw off engaging and/or throwing off engaging of described the second moving contact arm and described the second electric pathway of described the first moving contact arm and described the first electric pathway.
Selectively, described the first electric pathway is phase line path, and described the second electric pathway is zero line path.Selectively, described the first electric pathway and described the second electric pathway are phase line path.
According to the first execution mode, described arc-detection components comprises at least by iron core and is wrapped in the magnet ring that the coil on described iron core forms, and described magnet ring is around at least a portion of described the first moving contact arm.
According to the second execution mode, described arc-detection components comprises all at least by iron core and is wrapped in the first magnet ring and the second magnet ring that the coil on described iron core forms, described the first magnet ring is around at least a portion of described the first moving contact arm, and described the second magnet ring is around at least a portion of described the second moving contact arm.
According to the arc-fault circuit interrupter of aforesaid the first execution mode, wherein, described dropout executive module comprises: bobbin, and it has the coil of winding; Iron core, it is arranged in the center of described bobbin, and setovers towards the direction away from described bobbin along first direction under the effect of elastic force; Activate connector, be connected to described iron core one end away from described bobbin; Release, it engages removedly with described actuating connector, drives described the first moving contact arm and described the second moving contact arm to move upward in the second party that is basically perpendicular to described first direction under the effect of elastic force; Wherein, in the time that described magnet ring does not detect arc signal, described iron core is not driven by described bobbin, and described actuating connector is bonded on described release and described the first moving contact arm and described the second moving contact arm are connected with described the first electric pathway and described the second electric pathway respectively; In the time that described magnet ring detects arc signal, described iron core is driven by described bobbin, described actuating connector to the direction of described bobbin move to disconnect with described release engage and described the first moving contact arm and described the second moving contact arm disconnect along with described release motion and being electrically connected of described the first electric pathway and described the second electric pathway.
Particularly, described release has main part and carries arm from horizontal outward extending two of described main part, described main part is provided with vertical through hole and leads to described vertical through hole and for engaging the cross through hole of described actuating connector, described two carry arm respectively near and be placed in described the first moving contact arm and described the second moving contact arm under; Described arc-fault circuit interrupter also comprises reset button, and described reset button has in the vertical through hole of the main part that is contained in described release and by the stem portion that provides the back-moving spring of elastic force to support, and described stem portion is provided with horizontal draw-in groove; In the time pressing described reset button downwards, described back-moving spring is compressed, and the horizontal draw-in groove of the stem portion of described reset button engages with described actuating connector; In the time unclamping described reset button, under described action of reset spring, described reset button drives described release to move upward so that two of described release carry arm drive described the first moving contact arm and described the second moving contact arm to move thereupon and until described the first moving contact arm and described the second moving contact arm connect with described the first electric pathway and described the second electric pathway respectively.
Preferably, according to a kind of mode, described cartridge assemblies also comprises the mounting bracket of electric insulation and is electrically connected to respectively the output connection seat of described power output end, described mounting bracket supports described control circuit board, and described output connection seat is fixed on described control circuit board and is spaced apart to form installation region with described mounting bracket.Particularly, described arc-detection components comprises the piezo-resistance and the electric capacity that are parallel-connected between described the first electric pathway and described the second electric pathway, wherein, described piezo-resistance is used for preventing lightning surge, and described electric capacity disturbs for the waveform of removing sinusoidal ac.More specifically, described piezo-resistance and described electric capacity are disposed on described installation region.Preferably, described electric capacity is high pressure ceramic disc capacitor.Preferably, described mounting bracket is extended with respectively lug from its opposite flank, and described the first moving contact arm and described the second moving contact arm are fixed on described lug in the position between two ends separately; Wherein, described piezo-resistance and described electric capacity are disposed between described the first moving contact arm and described the second moving contact arm.
According to specifically described dropout executive module above, described cartridge assemblies also comprises the mounting bracket of electric insulation and is electrically connected to respectively the output connection seat of described power output end, described mounting bracket supports described control circuit board, and described output connection seat is fixed on described control circuit board and is spaced apart to form installation region with described mounting bracket.Particularly, described mounting bracket is formed with the first holding portion for holding described bobbin and is being formed with the second holding portion for holding described release away from a side of described installation region in the side near described installation region.More specifically, described arc-detection components comprises the piezo-resistance and the electric capacity that are parallel-connected between described the first electric pathway and described the second electric pathway, wherein, described piezo-resistance is used for preventing lightning surge, and described electric capacity disturbs for the waveform of removing sinusoidal ac.Preferably, described piezo-resistance and described electric capacity are disposed on described installation region.Preferably, described electric capacity is high-voltage capacitance.More preferably, described mounting bracket is extended with respectively lug from its opposite flank, and described the first moving contact arm and described the second moving contact arm are fixed on described lug in the position between two ends separately; Wherein, described piezo-resistance and described electric capacity are disposed between described the first moving contact arm and described the second moving contact arm.
According to the utility model, in the time producing electric arc because of electric leakage between the power line in supply line or between power line and ground, this arc-fault circuit interrupter can detect arc signal in time, and cuts off the electricity supply immediately, stops the generation of fire before electric arc causes burning.
Accompanying drawing explanation
Fig. 1 is according to the exploded perspective view of the arc-fault circuit interrupter of a kind of execution mode of the utility model;
Fig. 2 is the perspective view of the cartridge assemblies of arc-fault circuit interrupter shown in Fig. 1;
Fig. 3 is the exploded perspective view of the cartridge assemblies shown in Fig. 2;
Fig. 4 a-4b is the cutaway view of arc-fault circuit interrupter shown in Fig. 1 under reset mode, and wherein, Fig. 4 b is and the not schematic cross sectional views shown in ipsilateral of Fig. 4 a;
Fig. 5 a-5b is the cutaway view of arc-fault circuit interrupter shown in Fig. 1 under trip status, and wherein, Fig. 5 b is and the not schematic cross sectional views shown in ipsilateral of Fig. 5 a;
Fig. 6 is according to the circuit theory diagrams of the testing circuit of the arc-fault circuit interrupter of a kind of execution mode of the present utility model.
Embodiment
In the detailed description of following execution mode, describe with reference to the accompanying drawing of a part that forms this description.Accompanying drawing shows specific execution mode in the mode of example, and the utility model is implemented in these execution modes.Shown execution mode is not for limit is according to all execution modes of the present utility model.The execution mode that is appreciated that other can be utilized, and change structural or logicality can be made under the prerequisite that does not depart from scope of the present utility model.For accompanying drawing, the term of directivity, such as D score, " on ", " left side ", " right side " etc., use with reference to the orientation of described accompanying drawing.Because the assembly of execution mode of the present utility model can be implemented with multiple orientation, these directional terminology are the objects for illustrating, rather than the object of restriction.Therefore, following embodiment is not the meaning as restriction, and scope of the present utility model is limited by appending claims.
Fig. 1 is according to the exploded perspective view of the arc-fault circuit interrupter of a kind of execution mode of the utility model; Fig. 2 is the perspective view of the cartridge assemblies of arc-fault circuit interrupter shown in Fig. 1; Fig. 3 is the exploded perspective view of the cartridge assemblies shown in Fig. 2.
As Figure 1-Figure 2, the insulation shell of this arc-fault circuit interrupter 100 is made up of upper cover 102, base 104 and bonnet 106, wherein, the forward part adaptation of base 104 and upper cover 102, be connected to upper cover 102 by multiple screws 107, bonnet 106 and the rear section of upper cover 102 and with the rearward end adaptation of base 104, be connected to upper cover 102 by multiple screws 108.Thereby upper cover 102 and bonnet 106 at one end form respectively semicircle opening when both to formation circular engagement mouth 110 after being combined to hold line card 112 in the inner, wherein, line card 112 is for clip out-put supply line (not shown), and this out-put supply line generally includes output phase line, output zero line and output ground wire.On this upper cover 102, offer the pilot hole 114,116,118 that runs through it, tarpaulin 120 corresponding to above-mentioned pilot hole be formed with respectively boss for covering power supply indicator 122, for covering the cylindrical boss of reset button 124 and the cylindrical boss for coverage test button 126.By this, when installing when this tarpaulin 120, its boss protrudes out out from upper cover 102 respectively, so that user presses reset button 124 and testing button 126, meanwhile, whether power supply indicator 122 also can inform that user is current and be energized.One of ordinary skill in the art will appreciate that, this tarpaulin 120 is not essential.
Base 104 connects and offers two blade receiving openings, and one end of metal blade 128 is through outside a blade receiving opening protuberate basic unit 104, and one end of metal blade 130 is through outside another blade receiving opening protuberate basic unit 104, for access power supply.Ground wire input pin 127 enters in housing and fixes and be electrically connected with one end of the metal earthing sheet 131 that is positioned at housing through this base 104.
In the housing of this arc-fault circuit interrupter 100, hold organic core assembly 200.Particularly, as shown in Figure 3, this cartridge assemblies 200 comprises control circuit board 202, mounting bracket 204, a pair of moving contact arm 206,208, dropout executive module 210 and fixes respectively the output connection seat 212,214,216 of output phase line, output zero line and the output ground wire of out-put supply line.Wherein, the output connection seat 216 of output ground wire is fixed and is electrically connected with the other end of metal earthing sheet 131.
More specifically, the circumferential side wall 204a roughly vertically extending of this mounting bracket 204 forms the right holding portion 204b and the left holding portion 204c that communicate with each other, in the opposing sidewalls that forms left holding portion 204c, is also formed with vertical groove 204d; At right-hand member, from relative sidewall 204a, be laterally outwards also essentially horizontally extended with respectively lug 204e; At left end, the outside of relative sidewall 204a is also formed with respectively the location notch 204f of vertical direction.
The side that aforementioned blade 128,130 is positioned at housing is all fixed to the location notch 204f of mounting bracket 204, in addition, on this blade 128,130, also has contact 128a, 130a.
Moving contact arm 206,208 is formed by flexible conductive metallic material (such as copper), and on the whole, it is L shaped flat metal part.Particularly, this moving contact arm 206 comprises that horizontal arm part 206a and vertical arm divide 206b, is formed with contact 206c at the left end of horizontal arm part 206a, and this horizontal arm part 206a is fixed on lug 204e by rivet on the right side, like this, this horizontal arm part 206a is cantilever beam shape.Similarly, this moving contact arm 208 comprises that horizontal arm part 208a and vertical arm divide 208b, left end at horizontal arm part 208a is formed with contact 208c, this horizontal arm part 208a is fixed on another lug 204e by rivet on the right side, like this, this horizontal arm part 208a is cantilever beam shape.In direction shown in Fig. 1, this pair of moving contact arm 206,208 is installed on mounting bracket 204 as described above, and contact 206c, the 208c of moving contact arm 206,208 are laid respectively at directly over contact 128a, the 130a of blade 128,130.
Dropout executive module 210 comprises release 2101, snap close piece 2103, iron core 2105, spring 2107 and bobbin 2109.
In addition, this cartridge assemblies 200 also comprises magnet ring 218, piezo-resistance 220 and electric capacity 222, wherein, preferably, this electric capacity 222 is high-voltage capacitance, more preferably, this electric capacity is high pressure ceramic disc capacitor, at this, they are as the element of arcing detection components and use, to be basically parallel to the bearing of trend of moving contact arm 206,208 (that is, longitudinally) upper, this piezo-resistance 220 and electric capacity 222 be all disposed on control circuit board 202 on the installation region between mounting bracket 204 and output connection seat 212,214,216.Further, on the bearing of trend that is basically perpendicular to moving contact arm 206,208, (, laterally) upper, piezo-resistance 220 and electric capacity 222 are disposed between moving contact arm 206,208.The vertical arm of aforesaid moving contact arm 206 divides at least a portion of 206b to protrude out the central authorities that enter into this magnet ring 218.This magnet ring 218 also has two terminals, and they are all linked on arc fault processor 203 through the through hole of control circuit board 202.Particularly, this arc fault processor 203 can be microcontroller (Microprogrammed Control Unit, MCU).This piezo-resistance 220 and electric capacity 222 are connected between output connection seat 212,216 in parallel by its two terminals separately.
Return Fig. 1, for this reset button 124 and testing button 126 are installed reliably, between upper cover 102 and control circuit board 202, be also fixed with inner cap 132.This reset button 124 comprises the cap shape part being hidden by tarpaulin 120 at least in part and the stem portion of vertically extending from this cap shape part downwards, is also provided with horizontal draw-in groove in this stem portion.This stem portion enters in the through hole 2101c of release 2101 through inner cap 132 and control circuit board 202 from top to bottom successively, thus its end by the back-moving spring 134 in the spring containing seat of base against.Testing button 126 is electrically connected with the electronic devices and components on control circuit board 202 by sheet metal 136 in the one end away from tarpaulin 120, thus can by be arranged on analogue test switch (not shown) on control circuit board 202 carry out testing fixture can regular event.
Fig. 6 is according to the circuit theory diagrams of the testing circuit of the arc-fault circuit interrupter of a kind of execution mode of the present utility model.Below, the electrical connection of the each element of combined circuit schematic diagram to arc-fault circuit interrupter 100 of the present utility model carries out explanation substantially.
As shown in Figure 6, this testing circuit comprises phase line path 10, zero line path 20, ground wire path 30, and wherein, phase line path 10 comprises an input 11 and an output 12.Zero line path 20 comprises an input 21 and an output 22.Ground wire path 30 comprises an input 31 and an output 32.Particularly, this input 11,21 is electrically connected to the blade 128,130 of arc-fault circuit interrupter; Output 12,22,32 can be connected to power input and the ground protection end of power consumption equipment (such as refrigerator, electric heater etc.).This testing circuit also comprises dropout sensing circuit 40 and dropout executive circuit 50.Particularly, this dropout sensing circuit 40 at least comprises aforesaid magnet ring 218, aforesaid arc fault processor 203, the filtration module being made up of aforementioned piezo-resistance 220 and electric capacity 222, the power module of powering being made up of bridge rectifier.It will be understood by those skilled in the art that this dropout sensing circuit 40 can also comprise other circuit modules, the test module 44 being associated such as Voltage stabilizing module 42, with aforesaid testing button 126 etc., this is all irrelevant with the utility model, therefore do not repeat at this.Magnet ring 218 comprises iron core and is wrapped in the coil on iron core, wherein, iron core divides 206b around the vertical arm through the moving contact arm 206 at its center, and coil is crossed the electric current of moving contact arm and two terminals of coil for induced flow and is electrically connected to respectively the corresponding interface on arc fault processor 203 as input signal.This dropout executive circuit 50 comprises aforesaid a pair of moving contact arm 206,208 and dropout executive module 210.The contact 206c of moving contact arm 206 arranges corresponding to phase line path 10, plays on-off action, and the contact 208c of moving contact arm 208 arranges corresponding to zero line path 20, plays on-off action.Coil on the bobbin 2109 of dropout executive module 210 has two terminals, terminals are electrically connected to the other end on zero line path 20 and are connected on the node of bridge rectifier, as shown in the figure, phase line path 10 is also electrically connected on another node of bridge rectifier by electric wire.Controllable silicon (or claiming thyristor) 52 is electrically connected to respectively on another two nodes of bridge rectifier.
Those skilled in the art should be appreciated that, for thering is the power supply of two-way phase line path He Yi road ground wire path, can be provided with two magnet rings that are all electrically connected on arc fault processor 203, the iron core of these two magnet rings can be respectively around a moving contact arm that is electrically connected to phase line path with induced flow the electric current through moving contact arm.For example, in one embodiment, comprise two-way phase line path He Yi road ground wire path, accordingly, cartridge assemblies comprises a pair of moving contact arm that is electrically connected to respectively two-way phase line path, arc-detection components can be for detection of the arc signal between Yi road phase line path and ground wire path and/or between another road phase line path and ground wire path and/or between two phase line paths so that control circuit board sends trip signal, dropout executive module is for receiving from the trip signal of control circuit board to throw off engaging and/or throwing off engaging of moving contact arm and another phase line path of moving contact arm and phase line path.And, this arc-detection components should comprise at least by iron core and be wrapped in the first magnet ring and the second magnet ring that the coil on iron core forms, wherein, the first magnet ring is around at least a portion of moving contact arm that is electrically connected to a phase line path, and the second magnet ring is around at least a portion that is electrically connected to the moving contact arm on another phase line path.
Fig. 4 a-4b is the cutaway view of arc-fault circuit interrupter shown in Fig. 1 under reset mode, and wherein, Fig. 4 b is and the not schematic cross sectional views shown in ipsilateral of Fig. 4 a.Fig. 5 a-5b is the cutaway view of arc-fault circuit interrupter shown in Fig. 1 under trip status, and wherein, Fig. 5 b is and the not schematic cross sectional views shown in ipsilateral of Fig. 5 a.Illustrate according to the arc-fault circuit interrupter of a kind of execution mode of the present utility model it is how to carry out work in conjunction with Fig. 4 a-4b, Fig. 5 a-5b below.
When user presses reset button 124 downwards, this back-moving spring 134 is pressed downward contracting, the stem portion of reset button 124 in the process moving downward its horizontal draw-in groove can with pressed the sheet part of the level of the snap close piece 2103 of putting to aim at by spring 2107, thereby the tabs branch holding of the level of this snap close piece 2103 is difficult for therefrom deviating from the horizontal draw-in groove of the stem portion of reset button 124 and under the effect of spring 2107.Now, when user unclamps this reset button 124, under the restoring force effect of back-moving spring 134, reset button 124 moves upward.And due to the engagement relationship between this snap close piece 2103 and release 2101, this reset button 124 drives release 2101 to move upward simultaneously.Therefore, carry arm 2101b and will also move upward also until the contact of moving contact arm 206,208 is electrically connected to respectively on corresponding phase line path 10, zero line path 20 with the moving contact arm 206,208 suspending thereon thereupon for two of release 2101,, switch is closed.
After switch closure, this arc-fault circuit interrupter 100 can will be transported to the output connection seat 212,214,216 being electrically connected with output 12,22,32 with the power supply of input 11,21,31 by metal blade 128,130 and metal earthing sheet 131, more outwards outputs on power consumption equipment by the power line in line card.The waveform that the piezo-resistance 220 of filtration module and electric capacity 222 are respectively used to prevent lightning surge and remove sinusoidal ac disturbs.Magnet ring 218 induced flows are through the electric current of moving contact arm 206 and induced electromotive force is loaded on the interface of arc fault processor 203.
When at phase line path 10 and ground wire path 30 or there is electric arc between phase line path 10 and zero line path 20 time, magnet ring 218 is loaded into the induced electromotive force of particular range on arc fault processor 203 by the current range of induction moving contact arm 206, arc fault processor 203 can be exported the specific signal of telecommunication so that controllable silicon 52 conductings, thereby the coil of bobbin 2109 can produce enough large magnetic field so that iron core 2105 pressures are put to spring 2107 and are retracted in bobbin 2109.Therefore, thereby this snap close piece 2103 can be separated from and remove the interaction relation between reset button 124 and release 2101 with engaging of reset button 124, this release 2101 can drop to initial position under the effect of the elastic-restoring force of self gravitation and moving contact arm 206,208.By this, contact 206c, the 208c of two moving contact arms 206,208 all with contact 128a, the 130a separation of corresponding blade 128,130, that is, switch is opened.
It will be appreciated by those skilled in the art that, for thering is the power supply of two-way phase line path He Yi road ground wire path, when between two phase line paths, between a phase line path and ground wire path or between another phase line path and a ground wire path, producing electric arc, two functions that magnet ring all can detect and the contact separation of the contact of moving contact arm and blade is opened to realize to cut off the electricity supply.
By arc-fault circuit interrupter 100 of the present utility model, arc signal can cutting off the electricity supply accordingly can be detected in time, like this, can stop the former thereby breaking out of fire of electric arc due to power supply.
Those skilled in the art will be understood that above-described embodiment is all exemplary and nonrestrictive.The different technologies feature occurring in different embodiment can combine, to obtain beneficial effect.Those skilled in the art, on the basis of research accompanying drawing, specification and claims, will be understood that and realize the embodiment of other variations of disclosed embodiment.In claims, term " comprises " does not get rid of other devices or step; Indefinite article " one " is not got rid of multiple; Term " first ", " second " are for indicating title but not for representing any specific order.Any Reference numeral in claim all should not be understood to the restriction to protection range.The function of the multiple parts that occur in claim can be realized by an independent hardware or software module.Some technical characterictic appears in different dependent claims and does not mean that and these technical characterictics can not be combined to obtain beneficial effect.
Claims (18)
1. an arc-fault circuit interrupter, is characterized in that, described arc-fault circuit interrupter comprises:
Insulation shell;
The power output end that extends to the power input in described insulation shell and extend out from described insulation shell forms the first electric pathway and the second electric pathway between described power input and described power output end;
Cartridge assemblies, it is contained in described insulation shell, comprising:
The first and second moving contact arms, wherein, described the first moving contact arm is electrically connected on described the first electric pathway, and described the second moving contact arm is electrically connected on described the second electric pathway;
Control circuit board;
Arc-detection components, it is electrically connected on described control circuit board, for detection of arc signal so that described control circuit board sends trip signal;
Dropout executive module, it is electrically connected on described control circuit board, and it is for receiving from the trip signal of described control circuit board to throw off engaging and/or throwing off engaging of described the second moving contact arm and described the second electric pathway of described the first moving contact arm and described the first electric pathway.
2. arc-fault circuit interrupter according to claim 1, is characterized in that, described the first electric pathway is phase line path, and the second electric pathway is zero line path.
3. arc-fault circuit interrupter according to claim 1, is characterized in that, described the first electric pathway and described the second electric pathway are phase line path.
4. arc-fault circuit interrupter according to claim 2, is characterized in that, described arc-detection components comprises at least by iron core and be wrapped in the magnet ring that the coil on described iron core forms, and described magnet ring is around at least a portion of described the first moving contact arm.
5. arc-fault circuit interrupter according to claim 3, it is characterized in that, described arc-detection components comprises all at least by iron core and is wrapped in the first magnet ring and the second magnet ring that the coil on described iron core forms, described the first magnet ring is around at least a portion of described the first moving contact arm, and described the second magnet ring is around at least a portion of described the second moving contact arm.
6. arc-fault circuit interrupter according to claim 4, is characterized in that, described dropout executive module comprises:
Bobbin, it has the coil of winding;
Iron core, it is arranged in the center of described bobbin, and setovers towards the direction away from described bobbin along first direction under the effect of elastic force;
Activate connector, be connected to described iron core one end away from described bobbin;
Release, it engages removedly with described actuating connector, drives described the first moving contact arm and described the second moving contact arm to move upward in the second party that is basically perpendicular to described first direction under the effect of elastic force;
Wherein, in the time that described magnet ring does not detect arc signal, described iron core is not driven by described bobbin, and described actuating connector is bonded on described release and described the first moving contact arm and described the second moving contact arm are connected with described the first electric pathway and described the second electric pathway respectively; In the time that described magnet ring detects arc signal, described iron core is driven by described bobbin, described actuating connector to the direction of described bobbin move to disconnect with described release engage and described the first moving contact arm and described the second moving contact arm disconnect along with described release motion and being electrically connected of described the first electric pathway and described the second electric pathway.
7. arc-fault circuit interrupter according to claim 6, it is characterized in that, described release has main part and carries arm from horizontal outward extending two of described main part, described main part is provided with vertical through hole and leads to described vertical through hole and for engaging the cross through hole of described actuating connector, described two carry arm respectively near and be placed in described the first moving contact arm and described the second moving contact arm under; Described arc-fault circuit interrupter also comprises reset button, and described reset button has in the vertical through hole of the main part that is contained in described release and by the stem portion that provides the back-moving spring of elastic force to support, and described stem portion is provided with horizontal draw-in groove;
In the time pressing described reset button downwards, described back-moving spring is compressed, and the horizontal draw-in groove of the stem portion of described reset button engages with described actuating connector; In the time unclamping described reset button, under described action of reset spring, described reset button drives described release to move upward so that two of described release carry arm drive described the first moving contact arm and described the second moving contact arm to move thereupon and until described the first moving contact arm and described the second moving contact arm connect with described the first electric pathway and described the second electric pathway respectively.
8. arc-fault circuit interrupter according to claim 1, it is characterized in that, described cartridge assemblies also comprises the mounting bracket of electric insulation and is electrically connected to respectively the output connection seat of described power output end, described mounting bracket supports described control circuit board, and described output connection seat is fixed on described control circuit board and is spaced apart to form installation region with described mounting bracket.
9. arc-fault circuit interrupter according to claim 8, it is characterized in that, described arc-detection components comprises the piezo-resistance and the electric capacity that are parallel-connected between described the first electric pathway and described the second electric pathway, wherein, described piezo-resistance is used for preventing lightning surge, and described electric capacity disturbs for the waveform of removing sinusoidal ac.
10. arc-fault circuit interrupter according to claim 9, is characterized in that, described piezo-resistance and described electric capacity are disposed on described installation region.
11. arc-fault circuit interrupters according to claim 10, is characterized in that, described electric capacity is high pressure ceramic disc capacitor.
12. arc-fault circuit interrupters according to claim 10, it is characterized in that, described mounting bracket is extended with respectively lug from its opposite flank, and described the first moving contact arm and described the second moving contact arm are fixed on described lug in the position between two ends separately; Wherein, described piezo-resistance and described electric capacity are disposed between described the first moving contact arm and described the second moving contact arm.
13. arc-fault circuit interrupters according to claim 6, it is characterized in that, described cartridge assemblies also comprises the mounting bracket of electric insulation and is electrically connected to respectively the output connection seat of described power output end, described mounting bracket supports described control circuit board, and described output connection seat is fixed on described control circuit board and is spaced apart to form installation region with described mounting bracket.
14. arc-fault circuit interrupters according to claim 13, it is characterized in that, described mounting bracket is formed with the first holding portion for holding described bobbin and is being formed with the second holding portion for holding described release away from a side of described installation region in the side near described installation region.
15. arc-fault circuit interrupters according to claim 14, it is characterized in that, described arc-detection components comprises the piezo-resistance and the electric capacity that are parallel-connected between described the first electric pathway and described the second electric pathway, wherein, described piezo-resistance is used for preventing lightning surge, and described electric capacity disturbs for the waveform of removing sinusoidal ac.
16. arc-fault circuit interrupters according to claim 15, is characterized in that, described piezo-resistance and described electric capacity are disposed on described installation region.
17. arc-fault circuit interrupters according to claim 16, is characterized in that, described electric capacity is high-voltage capacitance.
18. arc-fault circuit interrupters according to claim 16, it is characterized in that, described mounting bracket is extended with respectively lug from its opposite flank, and described the first moving contact arm and described the second moving contact arm are fixed on described lug in the position between two ends separately; Wherein, described piezo-resistance and described electric capacity are disposed between described the first moving contact arm and described the second moving contact arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681266.8U CN203607348U (en) | 2013-10-30 | 2013-10-30 | Arc fault breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681266.8U CN203607348U (en) | 2013-10-30 | 2013-10-30 | Arc fault breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607348U true CN203607348U (en) | 2014-05-21 |
Family
ID=50720012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320681266.8U Expired - Lifetime CN203607348U (en) | 2013-10-30 | 2013-10-30 | Arc fault breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599911A (en) * | 2013-10-30 | 2015-05-06 | 益而益(集团)有限公司 | Arc fault circuit breaker |
| CN105334425A (en) * | 2014-06-13 | 2016-02-17 | 益而益(集团)有限公司 | Arc fault detection apparatus |
| CN105679617A (en) * | 2014-11-17 | 2016-06-15 | 益而益(集团)有限公司 | Multifunctional plug type circuit breaker |
| US9713273B2 (en) | 2014-05-09 | 2017-07-18 | Chengli Li | Fireproof separator board and plug-based circuit interrupter employing the fireproof board |
-
2013
- 2013-10-30 CN CN201320681266.8U patent/CN203607348U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599911A (en) * | 2013-10-30 | 2015-05-06 | 益而益(集团)有限公司 | Arc fault circuit breaker |
| CN104599911B (en) * | 2013-10-30 | 2017-05-03 | 益而益(集团)有限公司 | Arc fault circuit breaker |
| US9713273B2 (en) | 2014-05-09 | 2017-07-18 | Chengli Li | Fireproof separator board and plug-based circuit interrupter employing the fireproof board |
| CN105334425A (en) * | 2014-06-13 | 2016-02-17 | 益而益(集团)有限公司 | Arc fault detection apparatus |
| CN105679617A (en) * | 2014-11-17 | 2016-06-15 | 益而益(集团)有限公司 | Multifunctional plug type circuit breaker |
| CN105679617B (en) * | 2014-11-17 | 2018-10-12 | 益而益(集团)有限公司 | Multi-functional plug-type breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104599911A (en) | Arc fault circuit breaker | |
| CN100433224C (en) | Grounded failure circuit breaker with reverse wiring protection function | |
| US8154831B2 (en) | Leakage current detection interrupter with fire protection means | |
| CN203607348U (en) | Arc fault breaker | |
| US20070146946A1 (en) | Leakage current detection interrupter with fire protection means | |
| CN101980351B (en) | Rocker-type single-wire double-connection double-insurance switch | |
| CN201352656Y (en) | Novel multifunctional electric-leakage protection socket | |
| CN101958212B (en) | Receptacle type residual current circuit breaker | |
| CN101162814B (en) | Creepage protecting socket | |
| CN201213179Y (en) | Novel leakage protection socket | |
| CN201532918U (en) | Socket-type residual current breaker | |
| CN101562302B (en) | Novel earth leakage protection socket | |
| CN101399418B (en) | Novel leakage protection socket | |
| CN201107823Y (en) | Novel earth leakage protection socket | |
| CN101820164B (en) | Current leakage detection module and current leakage protection circuit breaker with current leakage detection module | |
| CN212182248U (en) | Intelligent sensing device for electric leakage type of electric power internet of things molded case circuit breaker | |
| CN201243140Y (en) | Novel leakage protection socket | |
| CN201107825Y (en) | Novel earth leakage protection socket | |
| CN201210559Y (en) | Novel leakage protection socket | |
| CN201369461Y (en) | Novel earth leakage protective socket | |
| CN201656428U (en) | Electricity leakage detection module and electricity leakage protection circuit breaker with the same | |
| CN204391016U (en) | Multi-functional plug-type circuit breaker | |
| CN200996976Y (en) | Abnormal-voltage alarming indicater in grounding system | |
| CN101567510B (en) | Novel electric leakage protection socket | |
| CN201107827Y (en) | Novel earth leakage protection socket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |