CN116435151A - Leakage circuit breaker - Google Patents

Abstract

The utility model relates to an electric leakage breaker which comprises a breaker shell, a handle, a release, a tripping mechanism, a baffle plate, a test button, a contact spring and a button spring, wherein the release, the tripping mechanism, the baffle plate, the test button, the contact spring and the button spring are arranged in the breaker shell, a first installation groove for installing the contact spring and a second installation groove for installing the button spring are arranged on the baffle plate, a first positioning piece, a plurality of positioning blocks and a first positioning through groove are arranged in the first installation groove, the contact spring is arranged on the first positioning piece, a second positioning piece and a second positioning through groove are arranged in the second installation groove, one end of the button spring is clamped in the second positioning through groove, and the other end of the button spring is positioned below the test button and is in contact with the test button. By adopting the technical scheme, the utility model provides the leakage breaker, the contact spring and the button spring of the leakage breaker are stable in structure, the spring is not easy to separate when moving, the overall structure is reasonable in layout, the space utilization rate is high, and the occupied space of the magnetic ring is not influenced.

Description

Leakage circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an electric leakage circuit breaker.

Background

The leakage breaker (residual current circuit-breaker) is a switch that can automatically operate when the leakage current in the circuit exceeds a predetermined value.

Circuit breakers generally consist of a contact system, an arc extinguishing system, an operating mechanism, a trip, a circuit breaker housing, and the like. The current Chinese patent of the utility model of bulletin No. CN210223918U of current authority discloses a leakage breaker that can positive and negative wiring, including first casing, be provided with first circuit breaker unit in the first casing, first circuit breaker unit is including first moving contact, first static contact, first explosion chamber, first handle operating device and first release, be provided with test return circuit and electric leakage circuit board in the first casing and get electric installation, test return circuit and electric leakage circuit board get electric installation including button, first conducting ring, second conducting ring, first electric torsion spring and the second electric torsion spring of getting, first conducting ring and second conducting ring set up respectively on first installing post and the second installing post of first casing, and first electric torsion spring cover is established on the third installing post of first casing, and first electric torsion spring of getting is contradicted and is realized being connected with the second conducting ring, and the second extension arm is located the second torsion spring, and is got the second and is connected with the second electric torsion spring and is got the second and is equipped with the second switching-off lever when the second electric torsion spring of getting, and the second electric torsion spring of getting is located the second installing post, and the second electric torsion spring of getting is connected with the second electric torsion spring of second extension, and second electric switch lever setting up.

The circuit breaker described above has the following problems:

1. the power taking structure is complex, the two torsion springs are required to be conducted through the conducting rings, and the torsion spring mounting structure is not stable enough, so that the torsion springs are easy to separate when moving, and the circuit is disconnected;

2. the installation of the magnetic ring requires a larger space, and part of products have unstable performance due to the small space of the magnetic ring;

3. the base integrated into one piece of circuit breaker, and the base both sides all are equipped with the installation space that is used for installing binding post, but its integrative setting leads to the wire very difficult assembly, because the space is little moreover, can't use the busbar wiring, often bring a lot of troubles for the user.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides the leakage breaker, which has the advantages that the contact spring and the button spring are stable in structure, the spring is not easy to separate when moving, the overall structure layout is reasonable, the space utilization rate is high, and the occupied space of the magnetic ring is not influenced.

The technical scheme of the utility model is as follows: the utility model provides an electric leakage circuit breaker, includes circuit breaker casing, handle, setting up release, tripping device, baffle, test button in the circuit breaker casing, contact spring and the button spring of moving contact, tripping device includes hasp, trip and hasp spring, trip rotation sets up in the circuit breaker casing, realize the linkage cooperation through the connecting rod between trip and the handle, the hasp spring effect is on the trip, makes hasp one end constitute the interference fit with trip and realizes handle combined floodgate operation, contact spring and button spring components of a whole that can function independently set up or integrated into one piece, be equipped with the first mounting groove that is used for installing contact spring and the second mounting groove that is used for installing button spring on the baffle, be equipped with first setting element, a plurality of locating pieces and first positioning through groove in the first mounting groove, contact spring sets up on first setting element, contact spring one end card is established in first positioning through groove, and the other end contacts with the button spring, each pressure is established on contact spring's lateral surface, be equipped with second setting element and second button through groove and second button through setting up on the side of contact spring, contact spring's the circuit breaker is equipped with the second locating plate and the contact spring is located the contact pad down.

By adopting the technical scheme, the structure layout is reasonable, space utilization is high, spring structure is stable, when two springs move, the separation plate is not easy to break away from, the circuit is more stable, the other side of the separation plate is provided with the moving contact component, the moving contact component is a conductive component, when the product is closed, the moving contact component rotates to be contacted with the contact arm of the contact spring in the first positioning through groove, because the other contact arm is contacted with the button spring, the test button is pressed, the test button is conducted with the contact plate, the test circuit is conducted, when the product is disconnected, the mechanism return moving contact component is disconnected with the contact arm of the contact spring in the first positioning through groove, at this moment, the test circuit cannot be conducted anyhow, and therefore the product does not have the risk of causing product failure due to the resistance burnout of the test circuit.

The utility model is further provided with: the contact spring comprises a first positioning hole, first arms positioned at two sides of the first positioning hole and contact arms positioned at two ends of the first arms, wherein the first positioning piece is positioned in the first positioning hole, each positioning piece is positioned at the outer side of the first arm, one contact arm is clamped in a first positioning through groove, the other contact arm is contacted with the button spring, the button spring comprises a second positioning hole, second arms positioned at two sides of the second positioning hole and positioning arms positioned at one end of the second arms, the second positioning piece is positioned in the second positioning hole, the positioning arms are clamped in the second positioning through groove, and the second arms are contacted with the test button.

By adopting the further arrangement, the positioning hole on the contact spring is clamped into the first positioning piece in the first mounting groove of the partition board, the positioning hole on the button spring is clamped into the second positioning piece in the second mounting groove of the partition board, the positioning arm on the first arm is clamped into the second positioning groove, the button spring is fixed, one of the contact arms of the contact spring is contacted with the button spring, one of the contact arms is clamped into the first positioning groove, and each positioning block is clamped onto the contact spring to position the contact spring so as to prevent the contact spring from falling out.

Still further, the present utility model provides: the tripping mechanism further comprises a support, a shifting piece and a shifting lever, the jumping buckle is rotationally arranged on the support, the support is rotationally arranged on the partition plate through a first installation shaft, the lock catch is arranged on the first installation shaft, the shifting piece is rotationally arranged on the partition plate through a second installation shaft and is located above the release, the shifting piece is in abutting arrangement with an ejector rod on the release, the shifting lever is rotationally arranged on the partition plate, a first arm and a second arm are arranged on the shifting lever, the first arm is in abutting arrangement on the upper end face of the shifting piece, a long groove is arranged on the second arm, linkage fit is realized between the lock catch and the second arm through a pull rod, one end of the pull rod is fixed on the lock buckle, the other end of the pull rod is slidably arranged in the long groove, the release pushes the shifting piece to swing, the shifting lever is driven to swing, thus the lock catch is driven to swing, a shifting piece spring used for resetting the shifting piece and a support spring used for resetting the support are further arranged in the shell, and one end of the shifting piece spring is in abutting arrangement or interval arrangement with the support.

By adopting the further arrangement, the first mounting shaft passes through the shaft hole of the bracket and then is placed on the baffle plate, the lock catch is placed on the first mounting shaft, the jump buckle and the lock catch spring are placed on the bracket, the bracket spring is positioned at the lower side of the bracket, the release is arranged below the pulling piece, the pulling piece with the pulling piece spring is arranged in the pulling piece, the pulling piece with the pulling piece spring arranged is arranged on the baffle plate through the second mounting shaft, the ejector rod of the release is abutted against the pulling piece, the pulling rod is arranged in the circuit breaker shell, the first arm of the pulling rod is abutted against the pulling piece, the two ends of the pulling rod are respectively inserted into the slot of the lock catch and the long slot of the pulling rod, the push handle is pushed, the jump buckle and the lock catch are meshed under the action of the lock catch spring, the connecting rod pushes the jump buckle so as to push the lock catch and the bracket to rotate clockwise around the first mounting shaft, the bracket is separated from one end of the pulling piece spring, the lock catch drives the pull rod to move to the left side of the long groove, the product is in a closed position, when leakage current occurs in a circuit and is larger than current bearable by the release, the ejector rod on the release moves upwards, the pull rod rotates around the second mounting shaft and drives the deflector rod to rotate, so that the pull rod placed in the long groove is driven to move, the lock catch is pulled to unlock the lock catch and the jump buckle, the support returns under the action of the support spring, the handle returns under the action of the handle spring, the pull rod moves to the right side of the long groove, at the moment, under the action of the pull rod spring force, the pull rod pushes the ejector rod into the release, the product is completely disconnected, the pull rod can freely move due to the arrangement of the long groove, the angle and the space for rotating the pull rod are small, the space is saved, the support is propped against the deflector spring in the disconnection process, and the leakage release mechanism has small integral volume and convenient installation and good stability.

Still further, the present utility model is provided with: the circuit breaker casing is including the bottom plate, base, well seat and the upper cover that set gradually, well seat is located between base and the upper cover, the base is equipped with a plurality ofly, and each base sets gradually, and interconnect, still including separation blade and a plurality of components of a whole that can function independently setting's wiring seat, each wiring seat sets up with the base one-to-one, all be equipped with the jack flap on each base, the correspondence is equipped with the jack flap on each wiring seat, the jack flap inserts and establishes the connection that realizes wiring seat and base in the jack flap, is equipped with the mounting groove along its vertical direction on each base and is located the first constant head tank of mounting groove both sides, be equipped with on well seat with the communicating second constant head tank of first constant head tank, all be equipped with on bottom plate and the well seat with the communicating third constant head tank of mounting groove, the separation blade is located the mounting groove, and both sides limit inserts and establish in each first constant head tank and second constant head tank, and the both ends of separation blade insert and establish in the third constant head tank, all be equipped with the through-hole that supplies the wire to pass through on each wiring seat and the base.

Adopt above-mentioned still further setting, with spare part on each base when assembling, the wire is pulled out from the through-hole, with the corresponding position alignment of each connection terminal on the base respectively packing into, the wire passes through another through-hole, pack into the corresponding position of base with a plurality of connection terminal in proper order, the assembly method is simpler like this, can rivet each connection terminal together through the riveting mode, and insert the both sides limit of separation blade in first constant head tank and the second constant head tank on the base, upper and lower both ends insert the third constant head tank, thereby fix the separation blade on the base, easy dismounting, and the wiring is convenient.

Still further, the present utility model is provided with: the plectrum spring adopts the torsional spring setting, be equipped with standing groove, first conflict face and second conflict face on the plectrum, the plectrum spring install in the standing groove, and the first limit of plectrum spring is contradicted on first conflict face, the second limit is contradicted on the second conflict face, be equipped with the boss on the support, the first limit of plectrum spring is contradicted with the boss and is set up or set up with the boss interval, the first limit of plectrum spring sets up with the boss interval when the product is closed, when the product disconnection, the first limit of plectrum spring is contradicted with the boss and is set up.

Adopt above-mentioned still further setting, there is the clearance between plectrum spring and the boss, when the release ejector pin pushes up, it is lighter, can guarantee the product and release, and the boss is contradicted on plectrum spring first edge when the product breaks, can push back the release ejector pin, and the torsional spring cover is few on the pull-out piece, and the assembly is simple reliable.

Still further, the present utility model is provided with: the button spring is characterized by further comprising a mounting plate, wherein the mounting plate is fixedly arranged on the first mounting shaft and positioned at the outer side of the lock catch, a mounting groove is formed in the mounting plate, the contact plate is arranged in the mounting groove, and one end of the contact plate extends to the lower side of the second arm of the button spring.

By adopting the further arrangement, the structure is compact, and the lock catch can be limited to prevent the lock catch from being separated from the first mounting shaft.

Still further, the present utility model provides: the support and the deflector rod are both rotationally arranged on the partition board, the partition board is provided with a mounting groove, the support is provided with a positioning boss, the support spring is arranged in the mounting groove, one end of the support spring is abutted to the side wall of the mounting groove, and the other end of the support spring is sleeved on the positioning boss.

By adopting the further arrangement, the bracket spring is limited, the bracket spring is prevented from being separated, and the installation is convenient.

Still further, the present utility model is provided with: the middle seat is provided with a through groove for installing the magnetic ring and a containing groove for containing the busbar, and the containing grooves are provided with a plurality of grooves and are respectively arranged on two sides of the through groove.

By adopting the further arrangement, the magnetic ring and the lead are conveniently placed in the through groove, the accommodating groove is favorable for accommodating the busbar, no matter the user uses the busbar or uses the busbar, and the product can accommodate the busbar because the accommodating groove is arranged in the product, so that the assembly is convenient.

Still further, the present utility model is provided with: the baffle is characterized in that an outwards protruding baffle connection table is arranged on the outer side face of the baffle, when the baffle is connected with each base, the baffle connection table is flush with the outer side face of the base, the upper end face of the baffle connection table is abutted against the middle base, and the lower end face of the baffle connection table is abutted against the bottom plate.

By adopting the arrangement, the blocking table is flush with the outer side surface of the base, and the side edges of the blocking sheets are clamped into the base, so that the distance between the charged parts of the product and the surface of the shell of the circuit breaker is larger, safer and more attractive.

Still further, the present utility model is provided with: the lower extreme of test button is equipped with two extension arms and is located the lug between two extension arms, all is equipped with on the one side that two extension arms are on the back of the body mutually with circuit breaker casing complex trip, the lower terminal surface of lug be equipped with button spring's second arm matched with recess.

By adopting the further arrangement, the two barbs of the button are clamped into the circuit breaker shell, so that the button is stable in structure and not easy to separate, the second arm of the button spring is clamped into the positioning groove of the test button, the button spring is prevented from deviating from the pressing route of the test button, and the phenomenon that the test button is pressed down and is not contacted is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

FIG. 3 is a schematic view of a trip mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the installation of a contact spring and a button spring according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a separator according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a contact spring according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a button spring according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a touch pad and test button according to an embodiment of the present utility model;

FIG. 9 is a schematic view of the installation of a contact spring and a button spring according to an embodiment of the present utility model;

FIG. 10 is a rear schematic view of a separator plate according to an embodiment of the present utility model;

FIG. 11 is a schematic diagram of a full disconnect of an embodiment of the present utility model;

FIG. 12 is a schematic diagram of an embodiment of the present utility model when tripped;

FIG. 13 is a schematic view of a bracket and a separator according to an embodiment of the present utility model;

FIG. 14 is a schematic view of a paddle according to an embodiment of the utility model;

FIG. 15 is a schematic view of a stent according to an embodiment of the present utility model;

FIG. 16 is a schematic view of a baffle according to an embodiment of the present utility model;

FIG. 17 is a schematic view of a test button according to an embodiment of the present utility model;

FIG. 18 is a schematic view illustrating the installation of the wire holders according to an embodiment of the present utility model;

FIG. 19 is a schematic view of the bases according to an embodiment of the utility model;

FIG. 20 is a schematic view of a base of an embodiment of the utility model;

FIG. 21 is a schematic view of a middle seat according to an embodiment of the present utility model;

fig. 22 is a schematic view of a base plate according to an embodiment of the present utility model.

Description of the embodiments

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

As shown in fig. 1-22, an electric leakage breaker comprises a breaker housing 1, a handle 2, a release 3 arranged in the breaker housing 1, a tripping mechanism 4, a partition 5, a test button 6, a contact spring 7 contacted with a moving contact 100, a button spring 8, an arc extinguishing mechanism and the like, which belong to the prior art, so that the specific unfolding description is omitted, the tripping mechanism 4 comprises a lock catch 41, a trip catch 42 and a lock catch spring 43, the lock catch spring 43 adopts a torsion spring, the trip catch 41 is rotatably arranged in the breaker housing 1, the trip catch 41 and the handle 2 realize linkage fit through a connecting rod 20, the lock catch 41 is rotatably arranged, the lock catch spring 43 acts on the lock catch 41 to enable one end of the lock catch 41 and the trip catch 42 to form an interference fit to realize the closing operation of the handle, the contact spring 7 and the button spring 8 are separately arranged or integrally formed, the baffle 5 is provided with a first installation groove 51 for installing the contact spring 7 and a second installation groove 52 for installing the button spring 8, the first installation groove 51 is internally provided with a first positioning piece 511, a plurality of positioning blocks 512 and a first positioning through groove 513, the contact spring 7 is arranged on the first positioning piece 511, one end of the contact spring 7 is clamped in the first positioning through groove 513, the other end is contacted with the button spring 8, each positioning block 512 is pressed on the outer side surface of the contact spring 7, the second installation groove 52 is internally provided with a second positioning piece 521 and a second positioning through groove 522, the button spring 8 is arranged on the second positioning piece 21, one end is clamped in the second positioning through groove 522, the other end is positioned below the test button 6 and is abutted against the test button 6, the breaker shell 1 is provided with a contact plate 11 below the button spring 8, the button spring 8 is contacted with the contact plate 11 to realize the conduction of a circuit, the disconnection of circuit is realized in button spring 8 and contact plate 11 separation, structural layout is reasonable, space utilization is high, spring stable in structure, when two springs move, be difficult for breaking away from the baffle for the circuit switch-on is more stable, the opposite side of baffle 5 is provided with the moving contact subassembly, the moving contact subassembly is electrically conductive part, when the product was closed, the moving contact subassembly rotates the contact arm contact that is located first location logical inslot with contact spring, because another contact arm contacts with the button spring, press test button, make test button switch on with the contact plate, test circuit switches on, when the product disconnection, mechanism return moving contact subassembly and contact spring are located the contact arm disconnection of first location logical inslot, at this moment, press test button anyway, test circuit can't switch on, therefore the product does not have the risk that test circuit resistance burns out and leads to the product to the inefficacy.

The contact spring 7 comprises a first positioning hole 71, first arms 72 positioned at two sides of the first positioning hole 71, and contact arms 74 and 75 positioned at the ends of the two first arms 72 and 73, the first positioning piece 71 is positioned in the first positioning hole 511, each positioning piece 512 is positioned at the outer side of the first arms 72 and 73, one contact arm 74 is clamped in a first positioning through groove 513, the other contact arm 75 is contacted with the button spring 8, the button spring 8 comprises a second positioning hole 81, second arms 82 and 83 positioned at two sides of the second positioning hole 81, and a positioning arm 84 positioned at the end of one second arm 82, the second positioning piece 521 is positioned in the second positioning hole 81, the positioning arm 84 is clamped in the second positioning through groove 522, the other second arm 83 is contacted with the test button 6, the positioning hole 71 on the contact spring 7 is clamped in the first positioning piece 511 in the first mounting groove 51 of the partition 5, the positioning hole 81 on the button spring 8 is clamped in the second positioning piece in the second mounting groove of the partition, the first arm is clamped in the second positioning piece in the first positioning groove of the partition, the first arm is clamped in the positioning piece on the first positioning groove, the first arm is clamped in the positioning piece on the positioning groove, the contact spring is prevented from contacting the contact spring, and the contact spring is prevented from contacting the contact spring.

The trip mechanism 4 further comprises a bracket 44, a pulling piece 45 and a pulling rod 46, the pulling piece 42 is rotatably arranged on the bracket 44, the bracket 44 is rotatably arranged on the partition board 5 through the first mounting shaft 40, the lock catch 41 is arranged on the first mounting shaft 40, the pulling piece 45 is rotatably arranged on the partition board 5 through the second mounting shaft 50 and is positioned above the trip 3, the pulling piece 45 is in abutting arrangement with the ejector rod 30 on the trip 3, the pulling rod 46 is rotatably arranged on the partition board 5, the pulling rod 46 is provided with a first arm 461 and a second arm 462, the first arm 461 abuts against the upper end surface of the pulling piece 45, the second arm 462 is provided with a long groove 4621, the long groove is in elliptical arrangement, the lock catch 41 and the second arm 462 are in linkage fit through a pull rod 60, in particular, one end of the pull rod 60 is fixed on the lock catch 41, the other end is slidably arranged in the long groove 4621, the trip 3 pushes the pulling piece 45 to swing the lock catch 46, thereby driving the lock catch 46 to swing the swing piece, the reset piece 45 is driven to be arranged on the side of the bracket 16, and the spring 16 is arranged on the partition board 16, the spring bracket 45 is arranged on the partition board 16, and the spring bracket 45 is arranged on the side of the partition board 16, the reset bracket 45, and the reset bracket 45 is arranged on the spring bracket 16, and the spring bracket 45 is in abutting arrangement 16, and the spring bracket 45 is arranged on the spring bracket 45 through the spring bracket 45 and the spring bracket 45 through the spring 16 and the spring bracket 45 and is arranged on the spring 16 and is in abutting the spring plate and is in abutting the spring-shaped. The deflector rod 46 is arranged on the partition board 5, the first arm 464 of the deflector rod 46 is abutted against the deflector plate 45, two ends of the pull rod 60 are respectively inserted into the slot 411 of the lock catch 41 and the long slot 4621 of the deflector rod 46, the handle 2 is pushed, the jump button 42 and the lock catch 41 are meshed under the action of the lock catch spring 43, the connecting rod pushes the jump button to push the lock catch and the support to rotate clockwise around the first installation shaft, the support is separated from one end of the deflector plate spring, the lock catch drives the pull rod to move to the left side of the long slot, a product is in a closed position, when leakage current occurs in a circuit and is larger than current bearable by the release, the ejector rod on the release moves upwards, the deflector plate rotates around the second installation shaft and drives the deflector rod to rotate, the pull rod placed in the long slot is driven to move, the lock catch is pulled to unlock with the jump button, the support returns under the action of the support spring, the handle returns under the action of the handle spring, the pull rod moves to the right side of the long slot, at the moment, the pull rod is pushed into the release device clockwise under the action of the spring force, the pull rod is completely disconnected, the product is enabled to move freely and the angle of the pull rod is enabled to move to the left side of the long slot, the ejector rod is in the whole, the whole body is convenient to be in the process of the installation, the small space is convenient, and the size of the release mechanism is easy to be separated, and has small size. The novel lock catch further comprises a mounting plate 70, wherein the mounting plate 70 is fixedly arranged on the first mounting shaft 40 and located on the outer side of the lock catch 41, a mounting groove 701 is formed in the mounting plate 70, the contact plate 11 is arranged in the mounting groove 701, one end of the contact plate extends to the lower portion of the second arm of the button spring 8, the structure is compact, the lock catch can be limited, and the contact plate is prevented from being separated from the first mounting shaft. The support and the deflector rod are both rotationally arranged on the baffle plate, the baffle plate 5 is provided with a mounting groove, the support 44 is provided with a positioning boss 442, the support spring 17 is arranged in the mounting groove 43, one end of the support spring is abutted against the side wall of the mounting groove 43, the other end of the support spring is sleeved on the positioning boss 442, the support spring 17 is limited, separation of the support spring 17 is prevented, and the support spring is convenient to install.

Specifically, the plectrum spring 16 adopts the torsional spring setting, be equipped with standing groove 451, first conflict face 452 and second conflict face 453 on the plectrum 45, plectrum spring 16 install in standing groove 451, and the first limit 161 conflict of plectrum spring 16 is on first conflict face 452, the second limit 162 conflict is on second conflict face 453, be equipped with boss 441 on the support 44, the first limit 161 of plectrum spring 16 and boss 441 conflict setting or with boss 441 interval setting, the first limit 161 of plectrum spring 16 and boss 441 interval setting when the product is closed, when the product disconnection, the first limit 161 of plectrum spring 16 and boss 441 conflict setting, there is the clearance between plectrum spring 16 and boss 441, when the release ejector pin upwards pushes up, can guarantee that the product is tripped, the boss is on the first limit of plectrum spring, can push back the release ejector pin, the torsional spring cover is few on the plectrum, and the assembly is simple reliable.

The breaker shell 1 comprises a bottom plate 12, a base 13, a middle seat 14 and an upper cover 15 which are sequentially arranged, wherein the middle seat 14 is positioned between the base 13 and the upper cover 15, the base 13 is provided with a plurality of seats, the bases 13 are sequentially arranged and are mutually connected, the breaker shell also comprises a baffle 9 and a plurality of wire holders 10 which are separately arranged, the wire holders 10 are mutually connected through a plugging structure, the wire holders 10 are arranged in a one-to-one correspondence manner with the base 13, each base 13 is provided with a plugging slot 131, each wire holder 10 is correspondingly provided with a plugging sheet 101, the plugging sheet 101 is plugged in the plugging slot 131 to realize the connection of the wire holder 10 and the base 13, each base 13 is provided with a mounting slot 132 and first positioning slots 133 positioned at two sides of the mounting slot 132 along the vertical direction, each middle seat 14 is provided with a second positioning slot 141 communicated with the first positioning slot 133, each bottom plate 12 and each middle seat 14 are provided with third positioning slots 121 and 142 communicated with the mounting slot 132, the baffle 9 is positioned in the mounting groove 132, two side edges are inserted into the first positioning grooves 133 and the second positioning grooves 141, two ends of the baffle 9 are inserted into the third positioning grooves 121 and 142, through holes 102 and 134 for the wires to pass through are formed in each wire holder 10 and the base 13, the parts are assembled on each base during assembly, the wires are pulled out from the through holes, the wire holders are respectively assembled in the corresponding positions on the base in an aligned manner, the wires pass through the other through holes, the wire holders are sequentially assembled in the corresponding positions on the base, the assembly mode is simpler, the wire holders can be riveted together in a riveting mode, the two side edges of the baffle are inserted into the first positioning grooves and the second positioning grooves on the base, the upper end and the lower end are inserted into the third positioning grooves, thereby fixing the baffle on the base, the assembly and the disassembly are convenient, and the wiring is convenient.

Be equipped with outside bellied fender on the lateral surface of separation blade 9 and connect the platform 91, when separation blade 9 is connected with each base 13, keep off and connect the platform 91 and flush with the base 13 lateral surface, and keep off the up end of connecing the platform 91 and contradict with well seat 14, the lower terminal surface contradicts with bottom plate 12 and sets up, keep off and connect the platform 91 and the lateral surface parallel and level of base 13 and because the side card of separation blade 9 goes into on the base 13, make product electrified spare part and product circuit breaker casing surface distance bigger, safer, more pleasing to the eye.

The middle seat 14 is provided with a through groove 143 for installing the magnetic ring 200 and a containing groove 144 for containing the bus bars, the containing grooves 144 are provided with a plurality of grooves and are respectively arranged on two sides of the through groove 143, the through grooves are arranged so as to be convenient for placing the magnetic ring and the lead wires, the containing grooves are arranged so as to be favorable for placing the bus bars, no matter a user uses the bus bars or uses the bus bars, and the product can contain the bus bars because the containing grooves are arranged.

The lower extreme of test button 6 is equipped with two extension arms 61 and is located the lug 62 between two extension arms 61, all is equipped with on the one side that two extension arms 61 are on the back of the body with circuit breaker casing 1 complex trip 611, the lower terminal surface of lug 62 is equipped with and presses button spring 8's second arm matched with recess 621, makes button stable in structure in the circuit breaker casing is gone into to two trip card of button, is difficult for breaking away from, in pressing into test button's constant head tank with button spring's second arm card, prevents the push route of button spring skew test button, has avoided pressing down when test button, contactless phenomenon appears.

Claims (10)

1. The utility model provides an electric leakage breaker, includes circuit breaker casing (1), handle (2), sets up release (3), tripping device (4), baffle (5), test button (6), contact spring (7) and button spring (8) with moving contact (100) contact in circuit breaker casing (1), tripping device (4) including hasp (41), trip (42) and hasp spring (43), trip (42) rotate and set up in circuit breaker casing (1), realize the linkage cooperation through connecting rod (20) between trip (42) and handle (2), hasp (41) rotate and set up, and hasp spring (43) are used in hasp (41), make hasp (41) one end and trip (42) constitute the interference cooperation and realize handle closing operation, characterized in that, contact spring (7) and button spring (8) components of a whole that can function independently set up or integrated into one piece, be equipped with first mounting groove (51) and second mounting groove (52) that are used for installing contact spring (7) on baffle (5), first mounting groove (511) and a plurality of locating pieces (512) are equipped with, the contact spring (7) is arranged on the first locating piece (511), one end of the contact spring (7) is clamped in the first locating through groove (513), the other end of the contact spring is in contact with the button spring (8), each locating block (512) is pressed on the outer side face of the contact spring (7), a second locating piece (521) and a second locating through groove (522) are arranged in the second mounting groove (52), the button spring (8) is arranged on the second locating piece (521), one end of the button spring is clamped in the second locating through groove (522), the other end of the button spring is located below the test button (6) and is abutted against the test button (6), a contact plate (11) is arranged below the button spring (8) on the circuit breaker shell (1), the button spring (8) is in contact with the contact plate (11) to conduct a circuit, and the button spring (8) is separated from the contact plate (11) to disconnect the circuit.

2. The residual current circuit breaker according to claim 1, wherein the contact spring (7) comprises a first positioning hole (71), first arms (72, 73) located at two sides of the first positioning hole (71) and contact arms (74, 75) located at the ends of the two first arms (72, 73), the first positioning piece (511) is located in the first positioning hole (71), each positioning piece (512) is located at the outer side of the first arm (72, 73), one contact arm (74) is clamped in a first positioning through groove (513), the other contact arm (75) is in contact with the button spring (8), the button spring (8) comprises a second positioning hole (81), second arms (82, 83) located at two sides of the second positioning hole (81) and a positioning arm (84) located at the end of one second arm (82), the second positioning piece (521) is located in the second positioning hole (81), the positioning arm (84) is clamped in a second positioning through groove (522), and the other contact arm (75) is contacted with the test button (6).

3. The residual current circuit breaker according to claim 1 or 2, wherein the tripping mechanism (4) further comprises a bracket (44), a shifting plate (45) and a shifting lever (46), the shifting buckle (42) is rotatably arranged on the bracket (44), the bracket (44) is rotatably arranged on the baffle plate (5) through a first mounting shaft (40), the lock catch (41) is arranged on the first mounting shaft (40), the shifting plate (45) is rotatably arranged on the baffle plate (5) through a second mounting shaft (50), the shifting plate (45) is arranged above the tripping device (3), the shifting plate (45) is in abutting arrangement with a push rod (30) on the tripping device (3), the shifting lever (46) is rotatably arranged on the baffle plate (5), a first arm (461) and a second arm (462) are arranged on the shifting plate (45), the second arm (462) is provided with a long groove (4621), the lock catch (41) is rotatably arranged on the baffle plate (5) and is in sliding linkage with the shifting lever (60) through the long groove (60), and the other end (46) is fixedly arranged in the sliding linkage of the shifting lever (41), thereby drive hasp (41) swing and realize the dropout, still be equipped with in circuit breaker casing (1) and be used for reset plectrum (45) plectrum spring (16) and be used for reset support (44) leg spring (17), plectrum spring (16) set up on plectrum (45), and one end and support (44) conflict setting or interval setting.

4. The residual-current circuit breaker according to claim 1 or 2, characterized in that the breaker housing comprises a base plate (12), a base (13), a middle base (14) and an upper cover (15) which are sequentially arranged, wherein the middle base (14) is arranged between the base (13) and the upper cover (15), a partition plate (5), a tripping mechanism (4) and a tripping device (3) are all arranged between the base (13) and the middle base (14), the bases (13) are provided with a plurality of bases (13) which are sequentially arranged and are mutually connected, the residual-current circuit breaker further comprises a baffle plate (9) and a plurality of wire holders (10) which are separately arranged, each wire holder (10) is arranged in a one-to-one correspondence manner with the base (13), each base (13) is provided with a plug-in groove (131), each wire holder (10) is correspondingly provided with a plug-in piece (101), each base (13) is provided with a mounting groove (132) along the vertical direction, each base (13) is provided with a first positioning groove (132) which is arranged in the plug-in groove (131) to realize connection of the wire holder (10) with the base (13), each base (13) is provided with a positioning groove (13) which is communicated with a first positioning groove (14) which is arranged on two sides (14) and a positioning groove (133 which is arranged, and a second positioning groove (14) which is arranged in the base (13) is communicated with a positioning groove (121), 142 The baffle plate (9) is positioned in the mounting groove (132), two side edges are inserted into the first positioning groove (133) and the second positioning groove (141), two ends of the baffle plate (9) are inserted into the third positioning grooves (121, 142), and through holes (102, 134) for the wires to pass through are formed in each wire holder (10) and the base (13).

5. The residual current circuit breaker according to claim 3, wherein the paddle spring (16) is arranged by a torsion spring, a placing groove (451), a first abutting surface (452) and a second abutting surface (453) are arranged on the paddle (45), the paddle spring (16) is installed in the placing groove (451), a first edge (161) of the paddle spring (16) abuts against the first abutting surface (452), a second edge (162) abuts against the second abutting surface (453), a boss (441) is arranged on the support (44), the first edge (161) of the paddle spring (16) abuts against the boss (441) or is arranged with the boss (441) at intervals, the first edge (161) of the paddle spring (16) is arranged at intervals with the boss (441) when the product is closed, and the first edge (161) of the paddle spring (16) abuts against the boss (441) when the product is disconnected.

6. A leakage breaker according to claim 3, further comprising a mounting plate (70), wherein the mounting plate (70) is fixedly arranged on the first mounting shaft (40) and is located outside the lock catch (44), a mounting groove (701) is formed in the mounting plate (70), the contact plate (11) is arranged in the mounting groove (701), and one end of the contact plate extends to the lower side of the second arm (83) of the button spring.

7. A residual-current circuit breaker according to claim 3, characterized in that the bracket (44) and the deflector rod (46) are both rotatably arranged on the partition board (5), the partition board (5) is provided with a mounting groove (53), the bracket (44) is provided with a positioning boss (442), the bracket spring (12) is arranged in the mounting groove (53), one end of the bracket spring is abutted against the side wall of the mounting groove (53), and the other end of the bracket spring is sleeved on the positioning boss (442).

8. The residual-current circuit breaker according to claim 4, wherein the middle base (14) is provided with a through groove (143) for installing a magnetic ring and a containing groove (144) for containing a busbar, and the containing grooves (144) are provided with a plurality of containing grooves and are respectively arranged at two sides of the through groove (143).

9. The residual-current circuit breaker according to claim 4, characterized in that the outer side surface of the blocking piece (9) is provided with a blocking and connecting table (91) protruding outwards, when the blocking piece (9) is connected with each base (13), the blocking and connecting table (91) is flush with the outer side surface of the base (13), the upper end surface of the blocking and connecting table (91) is in contact with the middle base (14), and the lower end surface of the blocking and connecting table is in contact with the bottom plate (12).

10. The residual-current circuit breaker according to claim 2, characterized in that the lower end of the test button (6) is provided with two extension arms (61) and a lug (62) between the two extension arms (61), wherein the opposite sides of the two extension arms (61) are provided with hooks (611) matched with the circuit breaker housing (1), and the lower end surface of the lug (62) is provided with grooves (621) matched with the positioning arms (83) of the button spring (8).

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