CN104064415A - Integral residual current circuit breaker - Google Patents
Integral residual current circuit breaker Download PDFInfo
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- CN104064415A CN104064415A CN201410305534.5A CN201410305534A CN104064415A CN 104064415 A CN104064415 A CN 104064415A CN 201410305534 A CN201410305534 A CN 201410305534A CN 104064415 A CN104064415 A CN 104064415A
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- circuit breaker
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- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 67
- 238000010891 electric arc Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 19
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 13
- 239000010931 gold Substances 0.000 claims description 13
- 229910052737 gold Inorganic materials 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009191 jumping Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention relates to an integral residual current circuit breaker. A transformer placing cavity for placing a transformer of a residual current detection part is arranged in a position, between an assembly cavity and an outlet terminal mounting seat, on a shell. A bimetal sheet adjustment platform is formed above the transformer placing cavity of the shell. The bimetal sheet adjustment platform is provided with an observation window and an adjustment window. The observation window passes through the bimetal sheet adjustment platform. The observation window corresponds to a position of matching between a bimetal sheet and a lock catch in an L-pole electromagnetic tripping device. An adjustment screw is installed in the adjustment window. The adjustment platform is covered with a sealing cover. Compared with the prior art, the integral residual current circuit breaker has the advantages of compact structure, convenient and reliable bimetal sheet position adjustment operation, easy installation, and easy bimetal sheet adjustment and repair.
Description
Technical field
The present invention relates to circuit breaker, be specifically related to a kind of residual current circuit breaker, particularly a kind of integral type residual current circuit breaker.
Background technology
Tradition, produce circuit breaker producer for realize overvoltage and electric leakage two kinds of defencive functions, employing be that the assembled pattern of overvoltage release, leakage tripping device and circuit breaker realizes.This pattern that realizes takies very large cabinet space for a moment, and two can make the mode of connection very complicated, and three can increase various costs, four meeting spent materials, and waste resource, therefore also impracticable.
For solving the problems of the technologies described above, Beijing Bo Dun Electric Applicance Co., Ltd designs and has applied for " the overvoltage protection type residual current circuit breaker that width is 36mm " (Granted publication number is CN 202230964 U), its primary structure is: comprise L utmost point part and N utmost point part, L utmost point part comprises handle, electromagnetic system, hot tripping system, trip link, the adhesive and make circuit breaker tripping in the time that short trouble appears in circuit of dynamic and static iron core in electromagnetic system, plays the effect of short-circuit protection; Bimetal leaf in hot tripping system is stirred trip link and is made circuit breaker tripping in the time that overload fault appears in circuit, plays the effect of overload protection; The N utmost point part of circuit breaker comprises N utmost point moving contact contact group, electronic circuit board, tripping mechanism, and after disjunction handle, the dynamic and static contact in L utmost point side after the moving contact in N utmost point moving contact contact group and the N utmost point fixed contact in electromagnetic system disconnects; In the time there is overvoltage, leak current fault in circuit; iron core in the coil of electronic circuit board touches push rod; push rod shake-up dropout part and then the universal driving shaft touching on hot tripping system make circuit breaker tripping, have played overvoltage protection and leakage protection, realize residual current circuit breaker global design.But it exists structural configuration unreasonable, the middle bimetal leaf position adjustment structure of hot tripping system does not make improvements, continue to use original structure, in case for circuit breaker lower end, adjustment screw hole is set, adjustment screw hole inward turning is furnished with adjustment screw, the corresponding bimetal leaf in adjustment screw one end, coordinates with bimetal leaf pushing tow, and the adjustment screw other end is operating side; Adjustment screw is finely tuned bimetal leaf, and when the position adjustments of bimetal leaf can only rely on assembling, accurately location, is finely tuning through adjustment screw, makes troubles not only to the assembling of residual current circuit breaker; Once occur that bimetal leaf position deviation is larger, cannot regulate by adjustment screw, need to take shell apart and carry out bimetal leaf position adjustments, cause the inconvenience of adjustment operation, especially for having in the situation of multiple L utmost point parts, dismounting difficulty is larger; And residual current circuit breaker is long-time use after, solidify bimetal leaf location, moves the problem such as insensitive, need to take apart shell pushing tow bimetal leaf and carry out adjustment operation, and after in use once shell is taken apart, easily internal part is caused damage, bring to the use of residual current circuit breaker, when serious, cause and cannot use, and in situation for multiple L utmost points, cannot dismantle adjusting, therefore existing user adopts directly replacing conventionally at all, cannot keep in repair, cause the waste of resource.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of compact conformation, and the position adjustments convenient and reliable operation of bimetal leaf is easy to assembly, and is convenient to the integral type residual current circuit breaker of bimetal leaf adjustment maintenance.
For achieving the above object, the invention provides following technical scheme: a kind of integral type residual current circuit breaker, include shell, an and assembling N utmost point part in the enclosure, detection of electrical leakage part and at least one L utmost point part, described N utmost point part includes the N utmost point and enters, outlet binding post, the wire connecting on N utmost point outlet terminal is through the instrument transformer of described detection of electrical leakage part, described L utmost point part includes L utmost point line terminal, and be connected in the L utmost point electromagnetic tripping apparatus between L utmost point line terminal, L utmost point arc-control device, two golden systems, the L utmost point electromagnetic tripping apparatus operating grip that has been connected, described shell is provided with the input terminal mount pad for N utmost point input terminal and the installation of L utmost point input terminal, for the outlet terminal mount pad of N utmost point outlet terminal and the installation of L utmost point outlet terminal, and assembly cavity between end of incoming cables stroma and outlet terminal mount pad, described two golden system includes bimetal leaf and bimetal leaf position adjustments screw, the snap close of bimetal leaf and L utmost point electromagnetic tripping apparatus is linked, the wire that L utmost point outlet terminal connects is connected on bimetal leaf through the instrument transformer of described detection of electrical leakage part, it is characterized in that: on described shell, between assembly cavity and outlet terminal mount pad, be provided with the instrument transformer placed cavity of laying for the instrument transformer of described detection of electrical leakage part, the instrument transformer placed cavity top of shell forms two gold plaques and regulates platform, two gold plaques regulate platform to be provided with watch window and regulate window, described watch window runs through two gold plaques and regulates platform, the cooperation position of snap close in the corresponding described bimetal leaf of watch window and L utmost point electromagnetic tripping apparatus, described adjustment screw is arranged on and regulates in window, on described adjusting platform, be covered with capping.
By adopting technique scheme, the instrument transformer placed cavity of placing for instrument transformer is set in shell between assembly cavity and outlet terminal mount pad, facilitate installation and the corresponding wire of instrument transformer to arrange, and shell forms two gold plaques adjusting platforms in instrument transformer placed cavity position, two gold plaques regulate on platform and watch window are set and regulate window, can observe situation between the position of bimetal leaf and bimetal leaf and snap close by watch window, and directly by watch window, bimetal leaf is carried out to pushing tow and realize position adjustments, without taking shell operation apart, facilitate the adjustment of bimetal leaf, when assembling, the position of bimetal leaf is without accurate adjustment, after to be installed preparing, by watch window, bimetal leaf is carried out to position adjustment, the accuracy of while weakening assembling like this, bimetal leaf position being adjusted, improve assembling speed, thereby enhance productivity, after adjustment completes, seal up capping, both reach sealing watch window and regulated window, realize the object of proofing dust and protecting, realize again product appearance attractive in appearance, and the later stage use time, when appearring in bimetal leaf, position solidifies, when action sensitivity decline and reliability decrease, can open capping, by watch window, bimetal leaf is adjusted to maintenance, again adjust, and can not cause damage to other parts in circuit breaker, realizing integral type residual current circuit breaker can maintenance operation, improves the useful life of circuit breaker.
The present invention is further set to: it is destroyed latch-up structure that described capping is provided with once dismounting, and described capping is arranged on and regulates on platform through latch-up structure locking.
By adopting technique scheme, realize the disposable use of capping, avoid the capping of layman's private opening to carry out the secondary maintenance of adjusting, between user and producer, form certain maintenance and reach an agreement on, facilitate the maintenance of producer to product.
The present invention is further set to: in described capping, latch-up structure includes the barb dop being arranged in capping, described adjusting platform is provided with the embedding slot embedding for capping, in described embedding slot, a side is provided with slot, the opposite side that embedding slot is relative is provided with the draw-in groove snapping in for barb dop, in described draw-in groove, be provided with the fixture block coordinating with the clamping of barb dop, fixture block forms supporting table, the edge of described barb dop and capping forms the encapsulation limit being bearing on supporting table, described capping one side is inserted in slot, the barb dop of capping opposite side is connected on fixture block, in capping, encapsulate on the supporting table that limit is bearing in fixture block.
By adopting technique scheme, in capping, latch-up structure is simple, capping is easy for installation, and on adjusting platform, form groove for capping assembling, regulate the assembly structure on platform not fragile, in the time that capping is dismantled, on it, barb dop is destroyed, cannot use, thereby avoid the capping of layman's private opening to carry out the secondary maintenance of adjusting.
The present invention is further set to: described detection of electrical leakage part includes leak(age) test button mechanism, leak(age) test button mechanism includes the test button and the switch module that are assemblied on shell, described switch module include two drawn by circuit board in detection of electrical leakage part draw pin, and control two and draw the conducting bridge of pin break-make, in described shell, be provided with and draw pin positioning seat for what draw that cushion sets position, draw pin positioning seat and be provided with the positioning seat hole of inserting for drawing pin, draw pin and be inserted in positioning seat hole with respect to being fixed on the other end of one end on circuit board, on described conducting bridge, have respectively and described in two, draw for two movable feeler levers of answering break-make to coordinate, conducting bridge is fixedly mounted on test button, between test button and shell, be provided with to drive test button to reset and complete two movable feeler levers disengagements two on conducting bridge and draw the back-moving spring that pin resets.
By adopting technique scheme, on the circuit board of detection of electrical leakage part, directly draw pin, drawing pin two ends fixes, draw pin fixing more solid and reliable, adopt the break-make control of drawing pin with the conducting bridge control two of two movable feeler levers, realize the control of test loop double breaking points, structure is more simple, two draw the opening apart from avoiding the actuating length of test button of pin, reduce the actuating length of test button, make testing button for circuit breaker mechanism structure compactness, test button adopts special back-moving spring to reset, reset more reliable, work more reliable and stable, operate more sensitive, formation and the material cost of each parts simultaneously, adopt metal clips design more cheap than original, reduce cost.
The present invention is further set to: described test button is longitudinal slip setting in the enclosure, test button draws between pin two, described in being positioned at, draws described conducting bridge the top of pin, test button includes presses end cap, shell is provided with the pilot hole that end cap passes of pressing for test button, pressing end cap is circumferentially extended with and spacing spacing along limit of pilot hole, press end cap and extended axially assembling post, assembling post is provided with spring positioning chamber, on described assembling post sidewall, offer sliding guide groove, sliding guide groove runs through assembling post sidewall, sliding guide groove arranges along spring positioning chamber direction, sliding guide groove is opening away from the one end of pressing end cap, described shell is provided with the spring bearing housing of the assembling post below that is positioned at test button, spring bearing housing adaptation snaps in the opening of sliding guide groove and can be along sliding guide groove slippage, described back-moving spring one end is bearing on spring positioning chamber diapire, the back-moving spring other end is bearing on spring bearing housing.
By adopting technique scheme, test button adopts pressing type operation to realize and controls, the assembling of test button is simple and convenient, back-moving spring is assemblied in spring positioning chamber, is enclosed in spring positioning chamber through spring bearing housing supporting, and the assembling of back-moving spring is reliable and stable, and be provided with sliding guide groove on assembling post, in the time pressing test button, test button is along the spring bearing housing slippage of leading, test button to press slip more reliable and stable.
The present invention is further set to: described test button upper limit is provided with limited bayonet along limit, is provided with longitudinal rail bar in described shell, and on test button, limited bayonet card fits on longitudinal rail bar and longitudinally guide rail bar slippage.
By adopting technique scheme, improve the stability of test button action.
The present invention is further set to: described conducting bridge is the elastic bar that Metallic rod is bent to form, the U-shaped backstay portion of conducting bridge in the middle of comprising, the both ends of U-shaped backstay portion opening part are horizontally outward extended with cross bar portion, cross bar portion forms described movable feeler lever, described assembling post sidewall is provided with the locating slot inserting for conducting bridge, locating slot is pressed direction setting along test button, described spring positioning chamber bottom is provided with the guide vane end stop that two positions is relative, two guide vane end stop intervals form location notch, in the U-shaped backstay portion of described conducting bridge, vertical portion positioning and plug-in mounting is in locating slot, in the U-shaped backstay portion of conducting bridge, location, lateral part is inlaid in location notch.
By adopting technique scheme, conducting bridge is simple in structure, presses good springiness, and raising conducting bridge and two draws pin and contacts reliably, and the location and installation of conducting bridge is reliable.
The present invention is further set to: between the N utmost point line terminal of described N utmost point part, be provided with N utmost point trip gear and N utmost point arc-control device, described N utmost point trip gear includes N utmost point fixed contact, N utmost point moving contact, linkage unit and the shunted exciter tripping mechanism of the action of driving N utmost point moving contact, linkage unit includes the fixing rocker of contact and trip link, the fixing rocker of contact is installed swingable in the enclosure, the fixing rocker of contact comprises that point contact that is located at run-on point both sides is installed index arm and the index arm that links, N utmost point moving contact is fixed on the contact of the fixing rocker of contact and installs on index arm, the contact of the fixing rocker of contact is installed index arm and is connected with the extension spring that driving N utmost point moving contact is thrown off N utmost point fixed contact, extension spring one end is fixed on the contact of the fixing rocker of contact and installs on index arm, the extension spring other end is fixed on shell, the interlock index arm of the fixing rocker of trip link one end and contact is connected, the trip link other end and operating grip are connected, shunted exciter tripping mechanism includes by detection of electrical leakage part and drives the N utmost point electromagnet apparatus of controlling, and the dropout drive rod being connected with the iron core of N utmost point electromagnet apparatus, dropout drive rod is hinged swingable in the enclosure through rotating shaft, dropout drive rod comprises the transmission arm and the actuating arm that set up pin joint both sides separately, the hinged interlock of iron core of the actuating arm of described dropout drive rod and N utmost point electromagnet apparatus, the snap close of the transmission arm of described dropout drive rod and L utmost point electromagnetic tripping apparatus is connected.
By adopting technique scheme; realizing N utmost point part can disconnect; and link with L utmost point electromagnetic tripping apparatus; when electric leakage; L utmost point partial response is threaded off and is disconnected; and the N utmost point also occurs jumping disconnected, earth leakage protective is more reliable, when overload protection; also corresponding disconnection of the N utmost point under the drive of L utmost point electromagnetic tripping apparatus; in the time that circuit breaker occurs that protection jumping is disconnected, the N utmost point and L are extremely all disconnected, and fail safe is higher; and the fixing rocker of dropout drive rod and contact adopts and swings in the shell coordinating; it makes structure more compact as middle linkage part, links more reliable.
The present invention is further set to: described N utmost point arc-control device includes two the first run-on tab being oppositely arranged and the second run-on tabs, the first run-on tab is electrically connected with N utmost point fixed contact, the second run-on tab is electrically connected with N utmost point moving contact, described the first run-on tab and the second run-on tab interval form striking passage, described striking passage one end is positioned at N utmost point fixed contact and disjunction place of N utmost point moving contact, the striking passage other end is the electric arc outlet that extends to shell inner bottom part, and described outer shell bottom wall is provided with the arc spraying mouth being communicated with electric arc outlet.
By adopting technique scheme, because the assembly space of N utmost point part is limited, the striking passage forming by two run-on tabs, run-on tab forms electromagnetic field in striking passage, by electric arc by striking circulation passage, and draw and extinguish through arc spraying mouth, arc-control device is simple and compact for structure, is suitable for the assembly space of N utmost point part.
The present invention is further set to: on described the first run-on tab, electric arc outlet one end of corresponding striking passage is V-arrangement shape.
By adopting technique scheme, the corresponding electric arc outlet of striking passage one end that the first run-on tab forms with the second run-on tab forms reducing, improve striking passage and be positioned at the electromagnetic force that electric arc outlet place attracts electric arc, electric arc can better be drawn to electric arc outlet, improve arc quenching effect.
Below in conjunction with accompanying drawing, the invention will be further described.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention integral type residual current circuit breaker three-dimensional view;
Fig. 2 is specific embodiment of the invention integral type residual current circuit breaker L utmost point part-structure schematic diagram;
Fig. 3 is the N utmost point part-structure schematic diagram of specific embodiment of the invention integral type residual current circuit breaker;
Fig. 4 is that specific embodiment of the invention integral type residual current circuit breaker is removed the structural representation after electric leakage circuit board partly;
Fig. 5 is specific embodiment of the invention integral type residual current circuit breaker N utmost point part and L utmost point part fit structure schematic diagram;
Fig. 6 is the test button mechanism structure schematic diagram one of specific embodiment of the invention integral type residual current circuit breaker;
Fig. 7 is Fig. 6 A part partial enlarged view;
Fig. 8 is the test button mechanism structure schematic diagram two (removing the circuit board of electric leakage part) of specific embodiment of the invention integral type residual current circuit breaker;
Fig. 9 is Fig. 8 B part partial enlarged view;
Figure 10 is specific embodiment of the invention conducting bridge and test button assembling schematic diagram.
Embodiment
Referring to accompanying drawing 1, to accompanying drawing 10, a kind of integral type residual current circuit breaker disclosed by the invention, includes shell 1, and is assemblied in a N utmost point part 3, detection of electrical leakage part 4 and at least one L utmost point part 2 in shell 1; Wherein detection of electrical leakage part 4 includes circuit board 41 summation current transformers 42, and it is known technology well known to those of ordinary skill in the art; Described N utmost point part 3 includes the N utmost point into and out of line binding post 31a, 31b, and the upper wire connecting of N utmost point outlet terminal 31b is through the instrument transformer 42 of described detection of electrical leakage part 4; Described L utmost point part 2 includes L utmost point line terminal 21a, 21b, and be connected in L utmost point electromagnetic tripping apparatus 22, L utmost point arc-control device 23, the two golden system 25 between L utmost point line terminal 21a, 21b, L utmost point electromagnetic tripping apparatus 22 operating grip 24 that has been connected; Wherein L utmost point electromagnetic tripping apparatus 22 includes snap close 221, tripping 223, interlock plate 222, L utmost point moving contact frame 224, L utmost point moving contact 225, L utmost point fixed contact 226, snap close 221 links with tripping 223, tripping 223 links with interlock plate 222, interlock plate 222 links with operating grip 24, L utmost point moving contact frame 224 is arranged on interlock plate 222, L utmost point moving contact 225 is arranged on moving contact frame 224, and it is known technology well known to those of ordinary skill in the art, therefore repeat no more.Described shell 1 is provided with the input terminal mount pad 12 for N utmost point input terminal 31a and L utmost point input terminal 21a installation, the outlet terminal mount pad 13 of installing for N utmost point outlet terminal 31b and L utmost point outlet terminal 21b, and assembly cavity 14 between end of incoming cables stroma 12 and outlet terminal mount pad 13; Described two golden system 25 includes bimetal leaf 251 and bimetal leaf position adjustments screw 252; Bimetal leaf 251 is linked with the snap close 221 of L utmost point electromagnetic tripping apparatus 22, and in the time of overload, bimetal leaf 251 is out of shape, and promotes snap close 221 and realizes the action of threading off; The wire that described L utmost point outlet terminal 21b connects is connected on bimetal leaf 251 through the instrument transformer 42 of described detection of electrical leakage part 4.On described shell 1, between assembly cavity 14 and outlet terminal mount pad 13, be provided with the instrument transformer placed cavity 15 of laying for the instrument transformer 42 of described detection of electrical leakage part 4, instrument transformer placed cavity 15 tops of shell 1 form two gold plaques and regulate platform 16, two gold plaques regulate platform 16 to be provided with watch window 161 and regulate window 162, described watch window 161 runs through two gold plaques and regulates platform 16, the cooperation position of snap close 221 in the corresponding described bimetal leaf 251 of watch window 161 and L utmost point electromagnetic tripping apparatus 22, described adjustment screw 252 is arranged on and regulates in window 162, adjustment screw 252 is the oblique setting that has a down dip, on described adjusting platform 16, be covered with capping 17.The instrument transformer placed cavity 15 of placing for instrument transformer 42 is set like this in shell 1 between assembly cavity 14 and outlet terminal mount pad 13, facilitate installation and the corresponding wire of instrument transformer 42 to arrange, and shell 1 forms two gold plaques adjusting platforms 16 in instrument transformer placed cavity 15 positions, two gold plaques regulate on platform 16 and watch window 161 are set and regulate window 162, can observe situation between the position of bimetal leaf 251 and bimetal leaf 251 and snap close 221 by watch window 161, directly by watch window 161, bimetal leaf 251 is carried out to pushing tow and realize position adjustments, operate without taking shell 1 apart, facilitate the adjustment of bimetal leaf 251, when assembling, the position of bimetal leaf 251 is without accurate adjustment, after to be installed preparing, by watch window 161, bimetal leaf 251 is carried out to position adjustment, the accuracy of while weakening assembling like this, bimetal leaf position being adjusted, improve assembling speed, thereby enhance productivity, after adjustment completes, seal up capping, both reach sealing watch window and regulated window, realize the object of proofing dust and protecting, realize again product appearance attractive in appearance, and the later stage use time, when appearring in bimetal leaf, position solidifies, when action sensitivity decline and reliability decrease, can open capping, by watch window, bimetal leaf is adjusted to maintenance, again adjust, and can not cause damage to other parts in circuit breaker, realizing integral type residual current circuit breaker can maintenance operation, improves the useful life of circuit breaker.
For avoiding layman's private opening capping 17 to carry out the secondary maintenance of adjusting, cause security incident, it is destroyed latch-up structure that described capping 17 is provided with once dismounting, described capping 17 is arranged on and regulates on platform 16 through latch-up structure locking.Realize the disposable use of capping, between user and producer, form certain maintenance agreement, facilitate the maintenance of producer to product, and producer can directly change capping, and the capping destroying is formed to secondary recovery reprocessing, reduce costs.Wherein, in described capping 17, latch-up structure includes the barb dop 171 being arranged in capping 17, described adjusting platform 16 is provided with the embedding slot 163 embedding for capping 17, in described embedding slot 163, a side is provided with slot 16 4, the opposite side that embedding slot 163 is relative is provided with the draw-in groove 165 snapping in for barb dop 171, in described draw-in groove 165, be provided with the fixture block 166 coordinating with 171 clampings of barb dop, fixture block 166 forms supporting table, described barb dop 171 forms with the edge of capping 17 the encapsulation limit 172 being bearing on supporting table, described capping 17 1 sides are inserted in slot 16 4, the barb dop card 171 of capping 17 opposite sides is connected on fixture block 166, in capping 17, encapsulate on the supporting table that limit 172 is bearing in fixture block 166.When capping 17 is installed, capping 17 1 sides are inserted in slot 16 4, the barb dop 171 of capping 17 opposite sides is pressed in draw-in groove 165 and is stuck on fixture block 166, in capping 17, encapsulate on the supporting table that limit 172 is bearing in fixture block 166, realize so the good sealing assembling of capping 17, and can not open easily, while opening, in capping 17, barb dop 171 is destroyed, cannot use, thereby avoid the capping of layman's private opening to carry out the secondary maintenance of adjusting.Certainly as the feasible technical scheme of the present invention, in capping, latch-up structure can also arrange lock hole in capping for adopting, relative set blind hole on the adjusting platform of shell, by dissolving in plastic hot melt post in blind hole at the lock hole of capping with regulating on platform, encapsulate, while uncapping, hot molten column is destroyed and cannot secondary use, or adopt lead to carry out sealing etc., but the destruction that its existence causes is not only in capping, and regulating corresponding structure on platform to cause damage greatly, secondary is used and brought inconvenience, and there is the defect of the assembling inconvenience of capping in it.
In general residual current circuit breaker, all with leak(age) test button mechanism, it conveniently checks reliability of residual current circuit breaker, traditional leak(age) test button mechanism adopts single-break structure, and metal clips control exists many defects such as poor reliability and button stroke length, as shown in Fig. 6 to Figure 10, described detection of electrical leakage part 4 includes leak(age) test button mechanism 43, leak(age) test button mechanism 43 includes the test button 431 and the switch module that are assemblied on shell 1, described switch module include two drawn by circuit board 41 in detection of electrical leakage part 4 draw pin 432, and control two and draw the conducting bridge 433 of pin 432 break-makes, in described shell 1, be provided with and draw pin positioning seat 112 for what draw pin 432 plug-in mountings location, drawing pin positioning seat 112 is provided with for drawing the positioning seat hole that pin 432 inserts, draw pin 432 and be inserted in the positioning seat hole of drawing pin positioning seat 112 with respect to the other end that is fixed on one end on circuit board 41, on described conducting bridge 433, have respectively and two movable feeler levers 4331 that draw the corresponding break-make of pin 432 described in two and coordinate, conducting bridge 433 is fixedly mounted on test button 431, between test button 431 and shell 1, be provided with to drive test button 431 to reset and complete on conducting bridge 433 two movable feeler levers 4331 and throw off two and draw the back-moving spring 434 that pin 432 resets.Adopt and control the two break-make controls of drawing pin 432 with the conducting bridge 433 of two movable feeler levers 4331, realize the control of test loop double breaking points, structure is more simple, two draw the opening apart from avoiding the actuating length of test button 431 of pin 432, reduce the actuating length of test button 431, make testing button for circuit breaker mechanism 43 compact conformations, test button adopts special back-moving spring 434 to reset, reset more reliable, work more reliable and stable, operate more sensitive, formation and the material cost of each parts simultaneously, adopt metal clips design more cheap than original, reduce cost.Described test button 431 is longitudinal slip and is arranged in shell 1, test button 431 draws between pin 432 two, the top of drawing pin 432 described in described conducting bridge 433 is positioned at, test button 431 includes presses end cap 4311, shell 1 is provided with the pilot hole that end cap 4311 passes of pressing for test button 431, pressing end cap 4311 is circumferentially extended with and spacing spacing along limit 4312 of pilot hole, press end cap 4311 and extended axially assembling post 4313, assembling post 4313 is provided with spring positioning chamber 4314, on described assembling post 4313 sidewalls, offer sliding guide groove 4315, sliding guide groove 4315 runs through assembling post 4313 sidewalls, sliding guide groove 4315 arranges along spring positioning chamber direction, sliding guide groove 4315 is opening away from the one end of pressing end cap 4311, described shell 1 is provided with the spring bearing housing 4316 of assembling post 4313 belows that are positioned at test button 431, spring bearing housing 4316 adaptations snap in the opening of sliding guide groove 4315 and can be along sliding guide groove 4315 slippages, described back-moving spring 434 one end are bearing on spring positioning chamber 4314 diapires, back-moving spring 434 other ends are bearing on spring bearing housing 4316.Certainly, as the feasible technical scheme of the present invention, test button also can horizontal pushing pressure slippage, but due to thickness direction limited space in the shell of circuit breaker, therefore exist assembling that inconvenient defect is set.
For further guarantee test button press slippage reliable in action, described test button 431 upper limits are provided with limited bayonet 4317 along limit 4312, in described shell 1, be provided with longitudinal rail bar 113, on test button 431, limited bayonet 4317 cards fit on longitudinal rail bar 113 and longitudinally guide rail bar 113 slippages.End cap 4311 places of pressing that realize test button 431 form positioning and guiding, and the slippage of test button is more reliable.The elastic bar that described conducting bridge 433 is bent to form for Metallic rod, the U-shaped backstay portion 4332 of conducting bridge 433 in the middle of comprising, the both ends of U-shaped backstay portion 4332 opening parts are horizontally outward extended with cross bar portion, cross bar portion forms described movable feeler lever 4331, described assembling post 4313 sidewalls are provided with the locating slot 4318 inserting for conducting bridge 433, locating slot 4318 is pressed direction setting along test button 431, described spring positioning chamber 4314 bottoms are provided with the guide vane end stop 4319 that two positions is relative, two guide vane end stop 4319 intervals form location notch, in the U-shaped backstay portion 4332 of described conducting bridge 433, vertical portion positioning and plug-in mounting is in locating slot 4318, in the U-shaped backstay portion 4332 of conducting bridge 433, location, lateral part is inlaid in location notch.Certainly conducting bridge can also be metal straight rod, or the positioning and fixing structure of other shapes, as circular arc clip form etc., but exists orientation assemble inconvenient and fix unstable defect, therefore conducting bridge preferentially adopts the shape and structure in this specific embodiment.
Traditional residual current circuit breaker, its N utmost point part 3 adopts between N utmost point line terminal 31a, 31b directly direct-connected with wire, can not disconnect, therefore the N utmost point does not disconnect, has the defect of poor stability, therefore the present invention improves this, between N utmost point line terminal 31a, the 31b of described N utmost point part 3, be provided with N utmost point trip gear 32 and N utmost point arc-control device 33, described N utmost point trip gear 32 includes linkage unit and the shunted exciter tripping mechanism that N utmost point fixed contact 321, N utmost point moving contact 322, driving N utmost point moving contact 322 move, linkage unit includes the fixing rocker 323 of contact and trip link 324, it is interior swingable that the fixing rocker 323 of contact is arranged on shell 1, the fixing rocker 323 of contact comprises that point contact that is located at run-on point both sides is installed index arm 3231 and the index arm 3232 that links, N utmost point moving contact 322 is fixed on the contact of the fixing rocker 323 of contact and installs on index arm 3231, the contact of the fixing rocker 323 of contact is installed index arm 3231 and is connected with the extension spring 327 that driving N utmost point moving contact 322 is thrown off N utmost point fixed contact 321, extension spring 327 one end are fixed on the contact of the fixing rocker 323 of contact and install on index arm 3231, extension spring 327 other ends are fixed on shell 1, the interlock index arm 3232 of the fixing rocker 323 of trip link 324 one end and contact is connected, trip link 324 other ends and operating grip 24 are connected, shunted exciter tripping mechanism includes the N utmost point electromagnet apparatus 325 that is driven control by detection of electrical leakage part 4, and the dropout drive rod 326 being connected with the iron core 3251 of N utmost point electromagnet apparatus 325, it is interior swingable that dropout drive rod 326 is hinged on shell 1 through rotating shaft, dropout drive rod 326 comprises the transmission arm 3261 and the actuating arm 3262 that set up pin joint both sides separately, the actuating arm 3262 of described dropout drive rod 326 and the hinged interlock of iron core 3251 of N utmost point electromagnet apparatus 325, the transmission arm 3261 of described dropout drive rod 326 is connected with the snap close 221 of L utmost point electromagnetic tripping apparatus 22.By above-mentioned improvement, realizing N utmost point part 3 can disconnect, and links with L utmost point electromagnetic tripping apparatus 22, when electric leakage, the corresponding dropout of L utmost point part 2 disconnects, and the N utmost point also occurs jumping disconnected, earth leakage protective is more reliable, when overload protection, also corresponding disconnection of the N utmost point under the drive of L utmost point electromagnetic tripping apparatus, in the time that circuit breaker occurs that protection jumping is disconnected, the N utmost point and L are extremely all disconnected, and fail safe is higher; And the fixing rocker 323 of dropout drive rod 326 and contact adopts and swings in the shell 1 coordinating, and it makes structure more compact as middle linkage part, links more reliable.
Wherein, described N utmost point arc-control device 33 includes two the first run-on tab 331 being oppositely arranged and the second run-on tabs 332, the first run-on tab 331 is electrically connected with N utmost point fixed contact 321, the second run-on tab 332 is electrically connected with N utmost point moving contact 322, described the first run-on tab 331 and the second run-on tab 332 intervals form striking passage 333, described striking passage 333 one end are positioned at N utmost point fixed contact 321 and 322 disjunctions place of N utmost point moving contact, striking passage 333 other ends are the electric arc outlet that extends to shell 1 inner bottom part, and described shell 1 diapire is provided with the arc spraying mouth 111 being communicated with electric arc outlet.Because the assembly space of N utmost point part 3 is limited, the striking passage forming by two run-on tabs, run-on tab forms electromagnetic field in striking passage, by electric arc by striking circulation passage, and draw and extinguish through arc spraying mouth, arc-control device is simple and compact for structure, is suitable for the assembly space of N utmost point part.And electric arc outlet one end of corresponding striking passage 333 is V-arrangement shape on described the first run-on tab 331.The corresponding electric arc outlet of striking passage 333 one end that such the first run-on tab 331 forms with the second run-on tab 332 forms reducing, improve striking passage 333 and be positioned at the electromagnetic force that electric arc outlet place attracts electric arc, electric arc can better be introduced to striking passage from contact, and draw electric arc outlet, improve arc quenching effect.
Claims (10)
1. an integral type residual current circuit breaker, include shell, an and assembling N utmost point part in the enclosure, detection of electrical leakage part and at least one L utmost point part, described N utmost point part includes the N utmost point and enters, outlet binding post, the wire connecting on N utmost point outlet terminal is through the instrument transformer of described detection of electrical leakage part, described L utmost point part includes L utmost point line terminal, and be connected in the L utmost point electromagnetic tripping apparatus between L utmost point line terminal, L utmost point arc-control device, two golden systems, the L utmost point electromagnetic tripping apparatus operating grip that has been connected, described shell is provided with the input terminal mount pad for N utmost point input terminal and the installation of L utmost point input terminal, for the outlet terminal mount pad of N utmost point outlet terminal and the installation of L utmost point outlet terminal, and assembly cavity between end of incoming cables stroma and outlet terminal mount pad, described two golden system includes bimetal leaf and bimetal leaf position adjustments screw, the snap close of bimetal leaf and L utmost point electromagnetic tripping apparatus is linked, the wire that L utmost point outlet terminal connects is connected on bimetal leaf through the instrument transformer of described detection of electrical leakage part, it is characterized in that: on described shell, between assembly cavity and outlet terminal mount pad, be provided with the instrument transformer placed cavity of laying for the instrument transformer of described detection of electrical leakage part, the instrument transformer placed cavity top of shell forms two gold plaques and regulates platform, two gold plaques regulate platform to be provided with watch window and regulate window, described watch window runs through two gold plaques and regulates platform, the cooperation position of snap close in the corresponding described bimetal leaf of watch window and L utmost point electromagnetic tripping apparatus, described adjustment screw is arranged on and regulates in window, on described adjusting platform, be covered with capping.
2. integral type residual current circuit breaker according to claim 1, is characterized in that: it is destroyed latch-up structure that described capping is provided with once dismounting, and described capping is arranged on and regulates on platform through latch-up structure locking.
3. integral type residual current circuit breaker according to claim 2, it is characterized in that: in described capping, latch-up structure includes the barb dop being arranged in capping, described adjusting platform is provided with the embedding slot embedding for capping, in described embedding slot, a side is provided with slot, the opposite side that embedding slot is relative is provided with the draw-in groove snapping in for barb dop, in described draw-in groove, be provided with the fixture block coordinating with the clamping of barb dop, fixture block forms supporting table, the edge of described barb dop and capping forms the encapsulation limit being bearing on supporting table, described capping one side is inserted in slot, the barb dop of capping opposite side is connected on fixture block, in capping, encapsulate on the supporting table that limit is bearing in fixture block.
4. according to integral type residual current circuit breaker described in claim 1 or 2 or 3, it is characterized in that: described detection of electrical leakage part includes leak(age) test button mechanism, leak(age) test button mechanism includes the test button and the switch module that are assemblied on shell, described switch module include two drawn by circuit board in detection of electrical leakage part draw pin, and control two and draw the conducting bridge of pin break-make, in described shell, be provided with and draw pin positioning seat for what draw that cushion sets position, draw pin positioning seat and be provided with the positioning seat hole of inserting for drawing pin, draw pin and be inserted in positioning seat hole with respect to being fixed on the other end of one end on circuit board, on described conducting bridge, have respectively and described in two, draw for two movable feeler levers of answering break-make to coordinate, conducting bridge is fixedly mounted on test button, between test button and shell, be provided with to drive test button to reset and complete two movable feeler levers disengagements two on conducting bridge and draw the back-moving spring that pin resets.
5. integral type residual current circuit breaker according to claim 4, it is characterized in that: described test button is longitudinal slip setting in the enclosure, test button draws between pin two, described in being positioned at, draws described conducting bridge the top of pin, test button includes presses end cap, shell is provided with the pilot hole that end cap passes of pressing for test button, pressing end cap is circumferentially extended with and spacing spacing along limit of pilot hole, press end cap and extended axially assembling post, assembling post is provided with spring positioning chamber, on described assembling post sidewall, offer sliding guide groove, sliding guide groove runs through assembling post sidewall, sliding guide groove arranges along spring positioning chamber direction, sliding guide groove is opening away from the one end of pressing end cap, described shell is provided with the spring bearing housing of the assembling post below that is positioned at test button, spring bearing housing adaptation snaps in the opening of sliding guide groove and can be along sliding guide groove slippage, described back-moving spring one end is bearing on spring positioning chamber diapire, the back-moving spring other end is bearing on spring bearing housing.
6. integral type residual current circuit breaker according to claim 5, it is characterized in that: described test button upper limit is provided with limited bayonet along limit, in described shell, be provided with longitudinal rail bar, on test button, limited bayonet card fits on longitudinal rail bar and longitudinally guide rail bar slippage.
7. integral type residual current circuit breaker according to claim 5, it is characterized in that: described conducting bridge is the elastic bar that Metallic rod is bent to form, the U-shaped backstay portion of conducting bridge in the middle of comprising, the both ends of U-shaped backstay portion opening part are horizontally outward extended with cross bar portion, cross bar portion forms described movable feeler lever, described assembling post sidewall is provided with the locating slot inserting for conducting bridge, locating slot is pressed direction setting along test button, described spring positioning chamber bottom is provided with the guide vane end stop that two positions is relative, two guide vane end stop intervals form location notch, in the U-shaped backstay portion of described conducting bridge, vertical portion positioning and plug-in mounting is in locating slot, in the U-shaped backstay portion of conducting bridge, location, lateral part is inlaid in location notch.
8. according to integral type residual current circuit breaker described in claim 1 or 2 or 3, it is characterized in that: between the N utmost point line terminal of described N utmost point part, be provided with N utmost point trip gear and N utmost point arc-control device, described N utmost point trip gear includes N utmost point fixed contact, N utmost point moving contact, linkage unit and the shunted exciter tripping mechanism of the action of driving N utmost point moving contact, linkage unit includes the fixing rocker of contact and trip link, the fixing rocker of contact is installed swingable in the enclosure, the fixing rocker of contact comprises that point contact that is located at run-on point both sides is installed index arm and the index arm that links, N utmost point moving contact is fixed on the contact of the fixing rocker of contact and installs on index arm, the contact of the fixing rocker of contact is installed index arm and is connected with the extension spring that driving N utmost point moving contact is thrown off N utmost point fixed contact, extension spring one end is fixed on the contact of the fixing rocker of contact and installs on index arm, the extension spring other end is fixed on shell, the interlock index arm of the fixing rocker of trip link one end and contact is connected, the trip link other end and operating grip are connected, shunted exciter tripping mechanism includes by detection of electrical leakage part and drives the N utmost point electromagnet apparatus of controlling, and the dropout drive rod being connected with the iron core of N utmost point electromagnet apparatus, dropout drive rod is hinged swingable in the enclosure through rotating shaft, dropout drive rod comprises the transmission arm and the actuating arm that set up pin joint both sides separately, the hinged interlock of iron core of the actuating arm of described dropout drive rod and N utmost point electromagnet apparatus, the snap close of the transmission arm of described dropout drive rod and L utmost point electromagnetic tripping apparatus is connected.
9. integral type residual current circuit breaker according to claim 8, it is characterized in that: described N utmost point arc-control device includes two the first run-on tab being oppositely arranged and the second run-on tabs, the first run-on tab is electrically connected with N utmost point fixed contact, the second run-on tab is electrically connected with N utmost point moving contact, described the first run-on tab and the second run-on tab interval form striking passage, described striking passage one end is positioned at N utmost point fixed contact and disjunction place of N utmost point moving contact, the striking passage other end is the electric arc outlet that extends to shell inner bottom part, and described outer shell bottom wall is provided with the arc spraying mouth being communicated with electric arc outlet.
10. integral type residual current circuit breaker according to claim 9, is characterized in that: on described the first run-on tab, electric arc outlet one end of corresponding striking passage is V-arrangement shape.
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| CN201410305534.5A CN104064415B (en) | 2014-06-30 | 2014-06-30 | A kind of monoblock type RCCB |
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| CN201410305534.5A CN104064415B (en) | 2014-06-30 | 2014-06-30 | A kind of monoblock type RCCB |
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| CN104064415B CN104064415B (en) | 2016-10-05 |
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| CN106257295A (en) * | 2015-06-19 | 2016-12-28 | 浙江正泰电器股份有限公司 | Chopper |
| CN107656137A (en) * | 2017-08-08 | 2018-02-02 | 中国电力科学研究院 | A kind of intelligent electric meter payment control system and its control method |
| CN107833811A (en) * | 2017-12-01 | 2018-03-23 | 江苏创能电器有限公司 | A kind of moulded case circuit breaker |
| CN107946153A (en) * | 2018-01-04 | 2018-04-20 | 常安集团有限公司 | Leakage circuit breakers |
| CN108072802A (en) * | 2016-11-18 | 2018-05-25 | 浙江正泰电器股份有限公司 | Has double-break leak(age) test circuit |
| CN108493061A (en) * | 2018-05-23 | 2018-09-04 | 广东珠电气科技有限公司 | One kind preventing reversed highly reliable leakage circuit breakers |
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|---|---|
| CN104064415B (en) | 2016-10-05 |
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Address after: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. Address before: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: WENZHOU LUOGELANG ELECTRICAL EQUIPMENT Co.,Ltd. |
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Address after: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Address before: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. |