CN108711541A - Breaker - Google Patents

Abstract

A kind of breaker,It includes shell and the handle that is arranged in shell,Operating mechanism,Tripping protection mechanism and dropout part,Tripping protection mechanism includes the armature snap-fitted with operating mechanism,It is equipped with bimetal leaf in side of the armature far from operating mechanism,It is equipped with and the spaced pole shoe of armature on bimetal leaf,Dropout part is pivoted in shell,Shell is stretched out in one end of dropout part,The other end is correspondingly arranged with armature,Dropout part can trigger armature movement release it is snap-fitted with operating mechanism,By rotate stretched out in dropout part shell one end can trigger armature movement release it is snap-fitted with operating mechanism,Breaker can be easily tested in production and usually use can normally thread off,And when breaker needs quickly to disconnect electric circuit,Only needing the strength of very little to stir dropout part can be by circuit breaker trip,And when circuit breaker trip disconnect electric circuit speed also than separating brake when faster,It is safer.

Description

Breaker

Technical field

The invention is related to Low Voltage Electrical Apparatus, more particularly to a kind of breaker.

Background technology

Breaker is the important component of electrical equipment industry, has been obtained for being widely applied, when electric circuit works just Chang Shi, breaker can by be closed or disconnect supply electric energy circuit, to reach the functions such as power failure, power supply and conversion circuit； When electric circuit occurs overloading abnormal with short circuit etc., breaker can cut off electric circuit by tripping, and avoid because of circuit Failure jeopardizes the safety of staff and the normal operation of equipment.

As circuit breaker electric traffic specification is increasing, when being in the presence of needing under urgent disconnection electric circuit, need very Breaker open operation, especially multipole circuit breaker are needed more strength by big fixed handle of pushing, and the speed of separating brake compares Slowly, may have little time to disconnect electric circuit, there are security risks.In addition, to test breaker in production and usually use It can normally thread off also very inconvenient, especially usually in use, it is difficult to finding not only safety but also test can be played the role of Electric circuit.

Invention content

The defect for aiming to overcome that the prior art of the invention provides a kind of simple in structure, reliability high disconnected Road device.

To achieve the above object, the invention uses following technical solution：

A kind of breaker comprising shell and the handle 100, operating mechanism, the tripping protection mechanism that are arranged in shell 300 and dropout part 400, tripping protection mechanism 300 includes the armature 340 snap-fitted with operating mechanism, in armature 340 far from behaviour Make mechanism side be equipped with bimetal leaf 320, on bimetal leaf 320 be equipped with 340 spaced pole shoe 330 of armature, take off Fastener 400 is pivoted in shell, and shell is stretched out in one end of dropout part 400, and the other end is correspondingly arranged with armature 340, threads off Part 400 can trigger the action of armature 340 release it is snap-fitted with operating mechanism.

Optionally, one end of the armature 340 is equipped with the shrapnel 311 being connect with one end of bimetal leaf 320, and the other end is set There is a connection sheet 313 coordinated with 320 other end of bimetal leaf, bimetal leaf 320 is bent and is driven by connection sheet 313 when overload Armature 340 releases snap-fitted with the tripping 210 of operating mechanism.

Optionally, including the universal driving shaft 450 that is connected between multiple breakers, universal driving shaft 450 are de- with multiple breakers Fastener 400 connects, and the side of dropout part 400 is equipped with the linkage portion 440 that the tripping 210 with operating mechanism coordinates, any breaker Dropout part 400 is pushed to rotate by tripping 210 when tripping, dropout part 400 drives the dropout of other breakers by universal driving shaft 450 Part 400 pushes the tripping protection mechanism 300 of corresponding breaker by other circuit breaker trips.

Optionally, the dropout part 400 including dropout department of assembly 410 and is separately positioned on 410 both ends of dropout department of assembly Rapid-releasing portion 420 and pushing part 430, shell be equipped with instruction opening 4200, instruction opening 4200 in be equipped with sliding slot 4201, rapid-releasing portion 420 is reached across sliding slot 4201 in instruction opening 4200.

Optionally, the dropout part 400 further includes being arranged in pushing part 430 close to the side of operating mechanism and operation machine The linkage portion 440 of structure cooperation.

Optionally, cue mark 421 is equipped in instruction opening 4200, rapid-releasing portion 420 is equipped with to be referred to for blocking The indicator board 422 of indicating note 421.

Optionally, the dropout department of assembly 410 is respectively equipped with and is threaded off on two opposite side walls of shell at cylinder The supporting table 412 of the front and back cooperation of department of assembly 410, supporting table 412 at tubular, dropout department of assembly 410 front and It is respectively equipped with the pivot platform 413 coordinated with the inner wall of supporting table 412 on the both sides at the back side, is pivoting platform 413 and dropout department of assembly 410 are equipped with the hole 411 that is connected.

Optionally, the operating mechanism includes connecting rod 220 and tripping 210, and 220 one end of connecting rod is connect with handle 100, another End is connect with movable contact 510；Tripping 210 is pivoted in shell, and tripping 210 is equipped with matches with the overlap joint of tripping protection mechanism 300 The hasp portion 213 of conjunction and the power part 215 coordinated with handle 100, and connect with tripping 210 by resetting spring 201, it is jumping Button 210 is equipped with the linkage board 216 coordinated with dropout part 400.

Optionally, the tripping 210 is at U-shaped comprising matches with the pivotal arm 211 of housing hinge, with 340 hasp of armature The hasp portion 213 of conjunction, and the linking arm 212 that is connected between pivotal arm 211 and hasp portion 213, are equipped on linking arm 212 The power part 215 coordinated with handle 100, and the linkage board 216 with the cooperation of dropout part 400, power part 215 pass through resetting spring 201 connect with connecting rod 220, and linkage board 216 and armature 340 are located at the both sides of dropout part 400.

Optionally, the connecting rod 220 includes the articulated jib 221 hinged with handle 100, and connect with movable contact 510 Contact arm 222, contact arm 222 are equipped with the spring carrier arm 223 being connect with resetting spring 201, contact arm 222 and articulated jib 221 The space of evacuation linkage board 216 is connected and formed between articulated jib 221 and contact arm 222 at V-shaped.

The breaker of the invention, one end by rotating stretching shell in dropout part 400 can trigger armature 340 Action releasing is snap-fitted with operating mechanism, and can easily test breaker in production and usually use normal Thread off, and breaker need quickly disconnect electric circuit when, it is only necessary to the strength of very little stir dropout part 400 can will Circuit breaker trip need not stir handle 100 by breaker open operation, and the speed of electric circuit is disconnected when circuit breaker trip When than separating brake faster, it is safer.In addition, by indicator board 422 being arranged in dropout part 400 to block cue mark 421, it can be with Easily directly observe that electric circuit disconnection is jumped due to normal manual brake separating or caused by failure Lock.In addition, by the way that the linkage portion 440 coordinated with tripping 210 is arranged in dropout part 400, tripping 210 is equipped with and linkage portion 440 and the linkage board 216 that coordinates of connecting rod 220, it pushes dropout part 400 to rotate by linkage board 216 when any circuit breaker trip, takes off Fastener 400 drives the dropout part 400 of other breakers to push corresponding tripping protection mechanism 300 will be other by universal driving shaft 450 Circuit breaker trip.

Description of the drawings

Structural schematic diagram when Fig. 1 is the invention breaker closing；

Structural schematic diagram when Fig. 2 is the invention circuit breaker trip；

Fig. 3 is structural schematic diagram when the invention breaker is detained again；

Fig. 4 is the partial enlarged view of A1 in the invention Fig. 3；

Structural schematic diagram when Fig. 5 is the invention breaker open operation；

Fig. 6 is the partial enlarged view of A2 in the invention Fig. 5；

Fig. 7 is the structural schematic diagram of the invention shell；

Fig. 8 is the structural schematic diagram of the invention tripping protection mechanism；

Fig. 9 is the side view of the invention shrapnel；

Figure 10 is the first embodiment of the invention shrapnel；

Figure 11 is the cooperation schematic diagram of the invention shrapnel and armature；

Figure 12 is second of embodiment of the invention shrapnel；

Figure 13 is the first embodiment of the invention pole shoe；

Figure 14 is second of embodiment of the invention pole shoe；

Figure 15 is a kind of embodiment of the invention tripping；

Figure 16 is the assembling schematic diagram of the invention handle and connecting rod；

Figure 17 is the partial enlarged view of B1 in the invention Fig. 1；

Figure 18 is the partial enlarged view of B2 in the invention Fig. 3；

Figure 19 is a kind of embodiment of the invention contact mechanism；

Figure 20 is the side view of the invention Figure 19；

Figure 21 is the partial cross-sectional view of the invention handle；

Figure 22 is a kind of embodiment of the invention fast trip mechanism；

Figure 23 is the partial cross-sectional view of C in the invention Figure 22；

Figure 24 is the cooperation schematic diagram of shutter and cue mark when the invention is not broken down；

Figure 25 is the cooperation schematic diagram of shutter and cue mark when the invention is broken down

Figure 26 is a kind of embodiment of the invention interpolar dropout part；

Figure 27 is the invention dropout part and the cooperation schematic diagram of universal driving shaft；

Figure 28 is the front view of the invention dropout part；

Figure 29 is the right view of the invention dropout part.

Specific implementation mode

Below in conjunction with the embodiment that attached drawing 1 to 29 provides, the specific implementation of the breaker of creation is further illustrated the present invention Mode.The breaker of the invention is not limited to the following description.

As shown in Fig. 1-3,5, the breaker of the invention includes shell and the handle being arranged in shell 100, behaviour Make mechanism and tripping protection mechanism 300, handle 100 is pivoted in shell, and handle 100 is connect with operating mechanism, movable contact 510 connect with operating mechanism, and tripping 210 and the overlap joint of tripping protection mechanism 300 of operating mechanism coordinate, and stationary contact 520 is touched with dynamic Point 510 is oppositely arranged, and handle 100 drives movable contact 510 to be contacting and separating with stationary contact 520 by operating mechanism, realizes circuit Switch closing and switch opening.As shown in Figure 1, handle 100 swings to the closing position (ON) of side, operating mechanism drives movable contact 510 Being contacted with stationary contact 520 makes breaker closing；As shown in figure 5, handle 100 swings to the open position (OFF) of the other side, operation Mechanism, which drives movable contact 510 to be detached with stationary contact 520, makes breaker open operation；As shown in Fig. 2, in breaker closing, work as circuit It breaks down, action is released the bonding relation between tripping 210 by tripping protection mechanism 300 makes circuit breaker trip, movable contact 510 detach with stationary contact 520, and handle 100 swings to the trip position (TRIP) between closing position and open position；Such as Fig. 3 Shown, after circuit breaker trip, handle 100 can not make breaker closing, need that handle 100 is first pushed open position, jumped with driving Button 210 with tripping protection mechanism 300 detain again again by snap-fitted realize, then detains back handle 100 and can be driven by operating mechanism Movable contact 510 swings the switch closing and switch opening for realizing breaker.

As shown in Fig. 1-7,15, operating mechanism of the invention includes connecting rod 220 and tripping 210,220 one end of connecting rod and handle 100 connections, the other end are connect with movable contact 510；Tripping 210 is pivoted in shell, and tripping 210 is equipped with and dropout protection machine The hasp portion 213 of the overlap joint cooperation of structure 300 and the power part 215 coordinated with handle 100, and pass through resetting spring 201 and tripping 210 connections.Tripping protection mechanism 300 is snap-fitted to the limit of tripping 210 with tripping 210, so that tripping 210 is substantially remained in static State, when handle 100 swings to closing position (Fig. 1) or open position (Fig. 5), 100 drive link 220 of handle drives dynamic touch Point 510 is contacting and separating with stationary contact 520, realizes the switch closing and switch opening of circuit.Tripping protection mechanism 300 when circuit breaks down Action releasing is snap-fitted with tripping 210, so that operating mechanism is threaded off, tripping 210 is in the constraint for losing tripping protection mechanism 300 Afterwards, resetting spring 201 pull tripping 210 rotate, the power part 215 of tripping 210 and make connecting rod 220 drive movable contact 510 with it is quiet Contact 520 is separated to realize tripping and go to trip position (Fig. 2) with fixed handle 100.After tripping, handle 100 is gone into separating brake Position, handle 100 drive the rotation of tripping 210 to make hasp portion 213 and tripping protection mechanism 300 by the power part 215 of tripping 210 It is formed again snap-fitted (Fig. 3).

As is seen in figs 7-10, tripping protection mechanism 300 of the invention includes bimetal leaf 320 and matches with operating mechanism hasp The armature 340 of conjunction, be equipped on bimetal leaf 320 with 340 spaced pole shoe 330 of armature, one end of armature 340 be equipped with The shrapnel 311 of one end connection of bimetal leaf 320, bimetal leaf 320 can drive the other end of armature 340 to act when being bent, 320 curved bel moving armature 340 of bimetal leaf releases snap-fitted, the electromagnetism of pole shoe 330 when short-circuit with operating mechanism when overload Gravitational attraction armature 340 releases snap-fitted with operating mechanism.The tripping protection mechanism of the breaker of the invention passes through rank Iron 340 coordinates with operating mechanism, bimetal leaf 320 and pole shoe 330 respectively, and armature 340 both can be snap-fitted with operating mechanism Play the role of lock, and can realize the work(of overload protection and short-circuit protection respectively with bimetal leaf 320 and the cooperation of pole shoe 330 Can, kill three birds with one stone, be ingenious in design, being reasonably combined together overload protection and short-circuit protection, have occupy little space, part The feature that quantity is few and production cost is low.The tripping protection mechanism 300 of obvious the invention not only can be with operation machine of the present invention The embodiment of structure coordinates, and can be used for the operating mechanism of other structures.

Specifically, being equipped with handle 100 as shown in figs. 1-7, in the shell of the breaker of the invention, operating mechanism, taking off Detain protection mechanism 300 and two connecting terminals 530；Operating mechanism includes connecting rod 220 and tripping 210, connecting rod 220 and tripping 210 It is stacked, and the upper front in tripping 210 is arranged in connecting rod 220, the left end and housing hinge of tripping 210, middle part is equipped with The power part 215 coordinated with handle 100, right end are equipped with the hasp portion 213 with the overlap joint cooperation of tripping protection mechanism 300, tripping 210 Power part 215 extend to the lower section of handle 100 to front and the power arm 130 of handle 100 coordinates；The top of connecting rod 220 and hand Handle 100 is hinged, and bottom end is connect by resetting spring 201 with tripping 210, when handle 100 goes to closing position and open position, drives Dynamic connecting rod 220 moves, and is connect with movable contact 510 in the bottom end of connecting rod 220, tripping protection mechanism 300 is arranged in operating mechanism Right side and tripping 210 overlap joint coordinate, and set that there are one connecting terminal 530, the connecting terminals on the right side of tripping protection mechanism 300 530 connect with movable contact 510, are connect equipped with another connecting terminal 530 and with the connecting terminal 530 in the lower left of shell Static contact 521, static contact 521 are equipped with stationary contact 520, and connecting terminal 530 can also be the inserting foot coordinated with socket.

As is seen in figs 7-10, a kind of embodiment of tripping protection mechanism 300 comprising bimetal leaf 320 and with operation The snap-fitted armature 340 of mechanism, armature 340 is between tripping 210 and bimetal leaf 320.One end of the armature 340 is set There are the shrapnel 311 that one end with bimetal leaf 320 is fixedly connected, the other end to be equipped with and the cooperation of the other end of bimetal leaf 320 Connection sheet 313 is equipped with the first hasp slot 2100 snap-fitted with tripping 210, the hasp of tripping 210 at the middle part of armature 340 Portion 213 snap over realized on the first hasp slot 2100 it is snap-fitted.The bimetal leaf 320 include setting at one end with shrapnel 311 fixing ends 321 being fixedly connected, and the swinging end 322 coordinated in the other end and connection sheet 313 is set, pole shoe 330 is arranged Be arranged at the middle part of bimetal leaf 320 and the interval of armature 340, the fixing end 321 of bimetal leaf 320 by connecting plate 360 with connect Line terminals 530 connect, and the swinging end 322 of bimetal leaf 320 is connect by flexible connection 535 with movable contact 510.

Bimetal leaf 320 in overload bending and by connection sheet 313 with moving armature 340 overcome the effect of shrapnel 311 to Right side movement far from tripping 210, when more than certain displacement, releasing armature 340 is snap-fitted with tripping 210, with Realize overload protection.Pole shoe 330 is a kind of permeability magnetic material, and pole shoe 330 can attract armature 340 to overcome shrapnel 311 in short circuit Effect moved to the right side far from tripping 210, when more than certain displacement, release the hasp of armature 340 and tripping 210 Cooperation has the characteristics that simple in structure to realize short-circuit protection, does not need traditional electromagnetic system by the dynamic iron core of coil absorption, The structure for driving operating mechanism to thread off by moving iron core again.

Preferably, as Figure 8-9, for the connection sheet 313 at U-shaped, connection sheet 313 includes two folders being oppositely arranged The contained side on side, side is fixedly connected with armature 340, and the contained side of the other side coordinates with the swinging end 322 of bimetal leaf 320, double gold The one end for belonging to piece 320 reaches the inside of connection sheet 313, pulls armature 340 to release and operation machine by connection sheet 313 in overload Structure it is snap-fitted.Further, the shrapnel 311 is equipped with bending part, and bending part makes armature 340 to separate in its natural state The side bending of bimetal leaf 320 forms included angle A, the folder of bimetal leaf 320 and 313 side of connection sheet after assembly with vertical direction Side is bonded and pulls shrapnel 311 so that armature 340 is formed included angle B, angle with vertical direction to back bending complications are curved by connection sheet 313 B is less than included angle A.Preferably, the included angle A is 8 degree, and the included angle B is 5 degree.Armature 340 is by shrapnel 311 to far from double gold Belong to the side bending of piece 320, then it is curved to inflection with moving armature 340 by bimetal leaf 320, can not only make armature 340 with it is double Cooperation between sheet metal 320 is relatively reliable, but also can improve the active force that shrapnel 311 applies armature 340, reduction Armature 340 needs mobile stroke when threading off.In addition, bimetal leaf 320 drives shrapnel 311 to act by connection sheet 313, knot Structure is compacter, and certain bimetal leaf can also drive armature 340 indirectly by additional connecting rod, and here to shrapnel The angle of bending and bimetal leaf 320 are not specifically limited with spring plate 311 to the curved angle of inflection under 311 natural conditions.

A kind of embodiment of shrapnel 311 and connection sheet 313 as show Fig. 8-10, the shrapnel 311 and connection sheet 313 Between be equipped with auxiliary piece 312, shrapnel 311 and connection sheet 313 connected by auxiliary piece 312, and armature 340 is connect with auxiliary piece 312, Shrapnel 311, connection sheet 313 and auxiliary piece 312 are preferably that the materials integrated punching such as stainless steel or tin bronze forms.As Figure 11 is shown The another embodiment of shrapnel 311 and connection sheet 313, shrapnel 311 and connection sheet 313 can also respectively after machine-shaping again It is welded respectively with armature 340, belongs to the protection domain of the invention.

As shown in figs. 9-11, the contained side that the connection sheet 313 is connect with armature 340 is equipped with and is taken on armature 340 first 2100 corresponding second hasp slot 2101 of catching groove, and connection sheet 313 is equipped with snapping board 2102 in the second hasp slot 2101, takes One end of buckle 2102 is connect with connection sheet 313, other end bending in the first hasp slot 2100 on armature 340, snapping board 2102 side is bonded with the cell wall of the first hasp slot 2100, and the other side and tripping 210 are snap-fitted.By in connection sheet 313 On 2102 bending formation of snapping board and the snap-fitted hasp face of tripping 210, not only contact area bigger, cooperation is more reliable, And cooperation is also smoother, the case where being not in clamping stagnation.Preferably, it is equipped on shrapnel 311 and connection sheet 313 and is equipped with riveting Location hole 341 is connect, armature 340 is equipped with and rivets 341 matched riveting convex closure of location hole, by that will rivet convex closure and riveting It is welded again after the cooperation positioning of location hole 341, has the characteristics that easy to process and assembly.

Preferably, the tripping protection mechanism 300 is inserted by support element 350 in shell.The side of the shrapnel 311 It is connect with the fixing end 321 of bimetal leaf 320, the other side is equipped with the support element 350 mating with the shell of breaker, support Part 350 is fixedly connected with shrapnel 311.The inserting groove 3500 mating with support element 350, shrapnel are equipped on the side wall of shell 311, it can be formed a fixed connection respectively by welding between bimetal leaf 320 and support element 350, naturally it is also possible to by other Mode connects, and shrapnel 311, bimetal leaf 320 and support element 350 not only can be then whole after assembled in advance is integrated outside shell Tripping protection mechanism 300 is packed into shell by body, and the tripping protection mechanism 300 of one is being plugged into shell by support element 350 In inserting groove 3500 on body, the difficulty of assembly is also lower, the Automation Design convenient for assembly, meets the development of automated production Trend.

Specifically, the support element 350 is at Z-type structure comprising substantially parallel and spaced first support plate 351 It is connected between the first support plate 351 and third support plate 353 with third support plate 353, and inclination for avoiding shrapnel 311 The second support plate 352, the first support plate 351 connect with fixed part 314, and third support plate 353 is equipped with into U-shaped and grafting The mating plugboard 354 of slot 3500, the side of plugboard 354 are inserted into inserting groove 3500, and the side wall of shell corresponds to The side of inserting groove 3500 is equipped with the positioning column 3501 coordinated with 354 side of plugboard, and positioning column 3501 can be against plugboard 354 side plays the role of positioning support element 350 and supporting, to improve the reliability of tripping protection mechanism 300.

Particularly, tripping protection mechanism 300 of the invention, which is arranged in shell, is located at operating mechanism side, connects with shell The one end connect is located at shell close to one end of handle 100.Specific as shown in Figs. 1-3, bimetal leaf 320 is arranged in armature 340 Side far from operating mechanism, swinging end 322 and the movable contact 510 of the bimetal leaf 320 are located at the same end in shell, institute The fixing end 321 stated is located in shell passes through flexible connection 535 and movable contact close to one end of handle 100, the swinging end 322 510 connections.This not only makes armature 340 and the rotation center of tripping 210 be located at armature 340 and 210 hasp face of tripping Both sides are against the first hasp slot 2100 far from 340 rotation center side of armature when armature 340 being made to snap on armature 340 On side wall, armature 340 is pulled to the side far from 340 rotation center of armature, rather than armature is pushed to the direction of rotation center 340, not only so that ensureing that 320 flexible stroke of bimetal leaf is longer in the case that space is compacter, action is sensitiveer, and And the flexible connection 535 of connection movable contact 510 and bimetal leaf is made to be located at the downside of breaker, form avoiding space, Neng Gouhe Removing the work office is stacked operating mechanism and dropout part 400 so that the overall structure of breaker is more compact, and convenient for dress The Automation Design matched, and convenient for the setting of breaker linkage mechanism.

Further, the side of the fixing end 321 of the bimetal leaf 320 is connect with shrapnel 311, the other side and connecting plate 360 connections, connecting plate 360 are connect with connecting terminal 530.Further, the shell is equipped with set corresponding with 360 side of connecting plate The adjusting screw 364 set.The connecting plate 360 includes the first connecting plate 361 being connect with bimetal leaf 320 and terminal plate 532 The third connecting plate 363 of connection, and be connected to second of camber between the first connecting plate 361 and third connecting plate 363 and connect Fishplate bar 362, the second connecting plate 362 is to the curving far from bimetal leaf 320, and the inside of the second connecting plate 362 is for avoiding Pole shoe 330 on bimetal leaf 320, the outside of the second connecting plate 362 are used to avoid the screw hole 534 on shell, the first connection The inside of plate 361 is connect with bimetal leaf 320, and the adjusting screw coordinated with the outside of the first connecting plate 361 is equipped on shell 364, shell is stretched out for user's operation in the head of adjusting screw 364, and user can push support element by screwing adjusting screw 364 350 band moving armatures 340 and bimetal leaf 320 are realized to change the initial position of bimetal leaf 320 to anticlockwise and adjust overload The function of drop-away time.

If Figure 12 shows the first embodiment of pole shoe 330, the setting of the pole shoe 330 is in bimetal leaf 320 far from rank The side that the side of iron 340, i.e. bimetal leaf 320 are bent towards passive layer, pole shoe 330 are arranged with the interval of bimetal leaf 320, One end of pole shoe 330 is equipped with the connecting pin 331 to 320 bending of bimetal leaf, connecting pin 331 can by weld etc. modes with it is double Sheet metal 320 is fixedly connected, by the way that pole shoe 330 and the setting of the interval of bimetal leaf 320 can be avoided interference with bimetal leaf 320 Bending.

Further, the bimetal leaf 320 is respectively equipped with pole shoe at I fonts on the side of 320 both sides of bimetal leaf Escape groove 333, at U-shaped, 330 both sides side of pole shoe is respectively protruding into pole shoe escape groove 333 to be coordinated pole shoe 330, can not only By the surface area of increase bimetal leaf 320 to increase calorific value, but also the electromagnetic attraction of pole shoe 330 can be enhanced, had Compact-sized feature.

Further, the top of 330 coil positioning port both sides side of the pole shoe, i.e., one end far from connection sheet 313 is set It is useful for the evacuation notch 334 of evacuation armature 340, after bimetal leaf 320 is bent certain angle, by avoiding 334 energy of notch Pole shoe 330 is enough avoided to be interfered with armature 340.

Further, the bottom side side at 330 middle part of the pole shoe is equipped with the connecting pin 331 coordinated with bimetal leaf 320, The top side side at the middle part of pole shoe 330 is equipped with coil positioning port 332, and coil positioning port 332 can be convenient for the coiling on pole shoe 330 Conducting wire is to adapt to the breaker of different size, the breaker of especially small ampere.

Second of embodiment of pole shoe 330 as show Figure 13-14, the pole shoe 330 is at tabular, in pole shoe 330 The back side is equipped with to the pole shoe of 320 protrusion of bimetal leaf and welds convex closure 335, and the front of pole shoe 330 is equipped with to being applied to process pole shoe The fabrication hole 336 of convex closure 335 is welded, pole shoe 330 welds convex closure 335 by pole shoe and welded with bimetal leaf 320, and is spaced and sets It sets and is bent to avoid interference bimetal leaf 320.The pole shoe 330 of flat pole shoe 330 and U-shaped generates the ability of electromagnetic force not Together, it is used for the product suitable for different rated current, certainly, pole shoe 330 can also be at other shapes, and pole shoe 330 can also It is connect with bimetal leaf 320 by the other manner other than welding, belongs to the protection domain of the invention.

As shown in figs. 1-7, one embodiment of the operating mechanism of the invention, the operating mechanism include connecting rod 220 With tripping 210, connecting rod 220 is stacked with tripping 210, and the upper front in tripping 210, tripping 210 is arranged in connecting rod 220 Left end and housing hinge, middle part is equipped with the power part 215 that coordinate with handle 100, the hasp portion 213 of right end and dropout protection machine The power part 215 of the overlap joint cooperation of structure 300, tripping 210 extends to 100 lower section of handle to front and the power arm 130 of handle 100 is matched It closes；The top of connecting rod 220 is hinged with handle 100, and bottom end connect with movable contact 510 and connected by resetting spring 201 and tripping 210 It connects.

If Fig. 1,15 show a kind of embodiment of the tripping 210 of operating mechanism, the tripping 210 is at U-shaped comprising Linking arm 212 and pivotal arm 211 and the hasp portion 213 for being oppositely arranged on 212 both ends of linking arm respectively, pivotal arm 211 and shell Body is hinged, and hasp portion 213 is equipped at 212 middle part of linking arm for snap-fitted with tripping protection mechanism 300 and extends to handle The power part 215 of 100 lower sections, 201 one end of resetting spring are connect with power part 215, and the other end is connect with connecting rod 220.Further, As shown in figs. 22-23, it is additionally provided with the dropout part 400 being correspondingly arranged with the armature of tripping protection mechanism 300 340 in breaker, takes off Shell is stretched out in one end of fastener 400, and the other end is correspondingly arranged with armature 340, pushes armature 340 far from jump by dropout part 400 Button 210 releases snap-fitted with tripping 210；It is additionally provided on the one end in hasp portion 213 and dropout part in linking arm 212 The linkage board 216 of 400 cooperations.The pivotal arm 211 of tripping 210 is pivoted on the round platform of shell by the tripping axis 2111 of metal On 2112, linking arm 212 and hasp portion 213 are rotated centered on tripping axis 2111, and tripping slot is equipped in the left side of linking arm 212 214, right side is equipped with the linkage board 216 coordinated with dropout part 400, is equipped in tripping slot 214 to front and extends to 100 lower section of handle Power part 215, the right side of power part 215 coordinates with handle 100, and the left side of power part 215 connects with one end of resetting spring 201 It connects, the other end of resetting spring 201 is connect in the bottom end of 210 positive connecting rod 220 of tripping with being arranged.

If Fig. 1,16 show a kind of embodiment of the connecting rod 220 of operating mechanism, the connecting rod 220 at flat plate, The connecting rod 220 includes the articulated jib 221 hinged with handle 100, and the contact arm 222 being connected with articulated jib 221, articulated jib 221 and contact arm 222 at V-shaped connect between articulated jib 221 and contact arm 222 formed evacuation tripping 210 on linkage The space of plate 216 is equipped with the adjutage 2231 to extend internally, in the side of adjutage 2231 on the side of 222 inside of contact arm Side is equipped with the spring carrier arm 223 being connect with resetting spring 201, and the contact arm 222 of connecting rod 220 is fixed with the moving contact 224 of copper Connection, double gold that moving contact 224 is equipped with movable contact 510 and moving contact 224 passes through flexible connection 535 and tripping protection mechanism 300 Belong to piece 320 to connect, the connecting rod 220 is preferably iron material matter.

The handle 100 includes the pivot block 110 being pivoted in shell, and is respectively fixedly connected in pivot block The motion arm 120 and power arm 130 at 110 both ends, pivot block 110 is hinged with connecting rod 220 simultaneously, and motion arm 120 stretches out shell and supplies User's operation is equipped with the handle openings 1200 to 100 rotary stopper of handle on the side wall of shell top side.

As shown in figures 1 to 6, the position-limit mechanism limited to tripping 210 and/or handle 100 is additionally provided in shell, then External force is applied to handle 100 when button, handle 100 drives tripping 210 to rotate by the power part 215 of tripping 210, when tripping 210 And/or handle 100 rotates to when being contacted with position-limit mechanism, the hasp in the hasp portion 213 and tripping protection mechanism 300 of tripping 210 Safety is formed between face and detains distance L again, is discharged the external force applied to handle 100 at this time, is made tripping 210 in 201 band of resetting spring On the dynamic lower hasp face for snapping over tripping protection mechanism 300 toward back rotation, completion is detained again.By position-limit mechanism to tripping 210 and/ Or handle 100 limits, then while detaining, makes to form safety between the hasp portion 213 of tripping 210 and the hasp face of tripping protection mechanism 300 Distance L is detained again, can prevent from causing tripping 210 that can not again buckle with tripping protection mechanism 300 since handle 100 is worn, significantly Improve the reliability of breaker.

As a kind of embodiment of position-limit mechanism, the position-limit mechanism includes being arranged in shell to be spaced with tripping 210 The pedestal block reinforcement 202 of setting, then when detaining, when tripping 210 and pedestal block reinforcement 202 contact, the hasp portion 213 of tripping 210 with Safety is formed between the hasp face of tripping protection mechanism 300 detains distance L again, after tripping 210 is detained again with tripping protection mechanism 300, Tripping 210 is detached with pedestal block reinforcement 202.

Further, the tripping 210 is at U-shaped comprising linking arm 212 and is oppositely arranged on linking arm respectively The pivotal arm 211 at 212 both ends and hasp portion 213, pedestal block reinforcement 202 is arranged limits turning for tripping 210 in the outside of pivotal arm 211 It is dynamic.Specifically, pedestal block reinforcement 202 is at rectangular parallelepiped structure, and positioned at the side in the left side and shell of the pivotal arm 211 of tripping 210 Between wall, shell is made of pedestal and case, and shell correspondence is respectively provided with connection above and below pedestal block reinforcement 202 Second screw hole 204 of pedestal and case, one end of pedestal block reinforcement 202 are connected with the side wall of shell, and the other end is equipped with and pivot The contact inclined-plane 205 that arm 211 contacts.The pedestal block reinforcement 202 of present embodiment can effectively utilize limited in shell Space, have the characteristics that it is compact-sized, occupy little space.Certainly, (do not show in figure as the other embodiment of position-limit mechanism Go out), position-limit mechanism can also be arranged in shell to be coordinated with linking arm 212 or hasp portion 213, and pedestal block reinforcement 202 also may be used At other shapes, such as rectangular, polygon, to belong to the protection domain of the invention.

As the another embodiment of position-limit mechanism, the position-limit mechanism includes being arranged on the side wall of shell to handle The handle openings 1200 of 100 rotary stoppers, then handle openings 1200 stop handle when handle 100 is rotated to open position when detaining 100, when the side wall of handle 100 and handle openings 1200 contacts, in the hasp portion 213 of tripping 210 and tripping protection mechanism 300 Hasp face between formed safety detain distance L again.Handle openings 1200 can when handle 100 is rotated to open position, instead of Pedestal block reinforcement 202 stop handle 100, and between tripping 210 and the hasp face of tripping protection mechanism 300 formed safety detain again away from From L.

As Fig. 1,3,17,18 show that another embodiment of position-limit mechanism, position-limit mechanism include 1200 He of handle openings Pedestal block reinforcement 202, handle openings 1200 are matched with pedestal block reinforcement 202, then when tripping 210 is contacted with pedestal block reinforcement 202 when detaining When, the power part 215 of tripping 210 limits handle 100, and forms prepared separation between handle 100 and handle openings 1200 Distance S.The connecting rod 220 is stacked with tripping 210, and the upper front in tripping 210, tripping 210 is arranged in connecting rod 220 Power part 215 extend to front and coordinate with the power arm 130 of handle 100, the power arm 130 of handle 100 is located at tripping 210 Power part 215 deviates from the side of pedestal block reinforcement 202.When tripping 210 and pedestal block reinforcement 202 contact, tripping 210 is dynamic by stopping The arm of force 130 makes motion arm 120 that can not be contacted with handle openings 1200, and is formed between motion arm 120 and handle openings 1200 Prepared separation distance S.It is equipped with and motion arm 120 in the side of the closing position of handle 100 specifically, handle openings 1200 are corresponded to The bearing surface 1201 being engaged, and the other side of the corresponding open position in handle 100 is equipped with and is set with the interval of motion arm 120 The evacuation face 1202 set, bearing surface 1201 and evacuation face 1202 are at V-type, the inside difference of bearing surface 1201 and evacuation face 1202 Equipped with the cambered surface coordinated with pivot block 110, outside is respectively equipped with the inclined-plane coordinated with motion arm 120, and the both sides of pivot block 110 are set There is the shading arm 140 coordinated respectively with bearing surface 1201 and 1202 inside edge of evacuation face, to improve the seal in shell.

If the power arm 130 of handle 100 is not worn, when driving handle 100 is rotated to combined floodgate direction, going to It is against on the motion arm 120 of handle 100 by bearing surface 1201 after closing position, handle 100 is limited in closing position；When pushing away When fixed handle 100 is rotated to separating brake direction, pushes tripping 210 to rotate counterclockwise by the power arm 130 of handle 100 and drive Hasp portion 213 moves up, and rotating counterclockwise on direction in tripping 210 is arranged in position-limit mechanism, when hasp portion 213 rises to rank (Fig. 4) when safety detains distance L again is formed on iron 340, pedestal block reinforcement 202 can be by stopping that tripping 210 continues up rotation (figure 3), power arm 130 is also against on the power part 215 of tripping 210, make motion arm 120 can not continue along separating brake direction rotate and Motion arm 120 and evacuation face 1202 between formed prepared separation distance S (Figure 18), make handle 100 motion arm 120 can not with keep away It allows face 1202 to contact, unclamps again handle 100, pull hasp portion 213 to move down by resetting spring 201 and be overlapped on armature 340 Top side is to complete to detain again (Fig. 6).

If worn on the power arm 130 of handle 100, when motion arm 120 is moved to prepared separation distance S, jump Button 210 can not be contacted with pedestal block reinforcement 202, and the distance between hasp portion 213 and armature 340 can also be less than safety and detain distance L again, At this time due to the presence of prepared separation distance S, motion arm 120 is set to continue to rotate to evacuation face 1202 along separating brake direction, directly Contacted again with pedestal block reinforcement 202 to tripping 210, hasp portion 213 can also re-move the safety on armature 340 detain again away from From L, prevents the abrasion due to handle 100 and lead to not to buckle again, product failure.

If it is understood that the distance between hasp portion 213 and armature 340 due to power arm 130 generate abrasion and Hasp can still be formed by being slightly less than when safety detains distance L again, but pass through the handle openings 1200 and pedestal block reinforcement on shell 202 carry out rotary stopper to motion arm 120 and tripping 210 respectively, and hasp portion 213 and armature 340 can not only be made to take again Safety can be maintained to detain distance L again when button always to improve the reliability of breaker, and due to limited space limit in shell The size that safety detains distance L again is made, if power arm 130 is further worn out, motion arm 120 can be along prepared separation distance S is rotated further to ensure hasp portion 213 and armature 340 again hasp, on the basis of not influencing breaker structure compactedness, energy Enough service life for effectively extending breaker finally also result in operation if the power arm 130 of handle 100 is further worn Arm 120 is contacted with evacuation face 1202.

Will close a floodgate breaker when if tripping 210 is with 340 hasp of armature, handle 100 be rotated to closing position, power Arm 130 is rotated to the direction far from power part 215, and handle 100 drives movable contact 510 to be moved to stationary contact 520 by connecting rod 220 It is dynamic；Separating brake breaker is wanted when if tripping 210 is with 340 hasp of armature, motion arm 120 is rotated to open position, power arm 130 rotate to close to the direction of power part 215, and handle 100 drives moving contact to be separated with stationary contact 520 by connecting rod 220；

If breaker is tripped when closing a floodgate, armature 340 moves right to be unbuttoned with hasp portion 213, and tripping 210 exists The effect of resetting spring 201 is lower to drive hasp portion 213 to move down, and tripping 210 pulls connecting rod 220 to drive by resetting spring 201 Moving contact 224 is separated with stationary contact 520, while connecting rod 220 turns to trip position with fixed handle 100, and makes power arm 130 It offsets with power part 215.

The breaker if tripping 210 will close a floodgate when unbuttoning (tripping) with armature 340, will when first being detained, then detained again Motion arm 120 is rotated to open position, and pivot block 110 drives hasp portion 213 upwards by 130 propulsion power portion 215 of power arm Mobile, when tripping 210 and/or handle 100 rotate to when being contacted with position-limit mechanism, hasp portion 213 and the dropout of tripping 210 are protected Safety is formed between the hasp face of mechanism 300 and detains distance L again, unclamps again handle 100 and hasp portion 213 is pulled by resetting spring 201 It moves down and is overlapped on the top side of armature 340 to complete to detain again.

If Figure 16,19-20 show a kind of embodiment of the structure of contact terminal of breaker, the connecting rod 220 is at flat thin Plate comprising the articulated jib 221 hinged with handle 100, and the contact arm 222 that is connected with articulated jib 221, contact arm 222 Be fixedly connected with the moving contact 224 of copper, moving contact 224 be equipped with movable contact 510 and moving contact 224 by flexible connection 535 with it is de- The bimetal leaf 320 for detaining protection mechanism 300 connects.Specifically, dynamic tactile equipped with copper material on the side at 222 back side of contact arm First 224, moving contact 224 is arranged in parallel with connecting rod 220, and movable contact 510 is equipped on the side of moving contact 224, and movable contact 510 is excellent It is selected as silver-colored material, the side of the side of moving contact 224 is fixedly connected with contact arm 222, and the side of the other side passes through flexible connection 535 It is connect with bimetal leaf 320, moving contact 224 is set by increasing in the side of connecting rod 220, then by the setting of movable contact 510 dynamic On contact 224, at work, the electric current of major loop directly flows to movable contact 510 to breaker by moving contact 224, can not only Avoid the problem that causing by connecting rod 220 due to electric current the temperature of circuit breaker internal from rising, but also with reducing production cost, just In assembly the characteristics of.

Further, the moving contact 224 is integrated the zigzag structure being stamped to form comprising is arranged in parallel in contact First contact plate 2241 of 222 side of arm, the second contact plate 2242 being arranged on 222 extended line of contact arm, and be connected to Bending contact plate 2243 between first contact plate 2241 and the second contact plate 2242, the side of the first contact plate 2241 and contact Arm 222 is fixedly connected, and the side of the second contact plate 2242 is fixedly connected with movable contact 510, and movable contact 510 connects with stationary contact 520 The center line 1 of tactile contact surface is arranged with the center line 2 on 220 thickness of connecting rod on same straight line, make operating mechanism by Power is unified in the same plane, has the characteristics that reliable transmission, convenient for assembly.

Further, the connecting rod 220 is welded with moving contact 224, and the first convex is equipped on the first contact plate 2241 Packet 2244 is equipped with the first positioning hole 2245 coordinated with the first positioning convex closure 2244, the first positioning convex closure in contact arm 222 2244 with first positioning hole 2245 when welding movable contact 510 and connecting rod 220, positioning can not only be played the role of, but also The difficulty of assemble welding can be reduced.

Further, it is equipped with the welding recess for accommodating 535 end of flexible connection at the back side of the first contact plate 2241 2246, the end of flexible connection 535 is welded on the bottom wall of welding recess 2246, is had the characteristics that compact and is convenient for assembly.

As shown in Figure 16,21, the connecting rod 220 of the assembling structure of the handle 100 and operating mechanism, operating mechanism passes through one Root articulated shaft 226 is connect with handle 100, passes through handle 100 and connecting rod 220 by handle 100 and connecting rod by an articulated shaft 226 220 is hinged, and connecting rod 220 and handle 100 can also be installed after being integrated and be co-mounted in breaker again, have it is easy to assembly, The characteristics of convenient for Automated assembly.Specifically, the handle 100 includes the pivot block 110, Yi Jifen being pivoted in shell Motion arm 120 and power arm 130 at 110 both ends of pivot block is not set, and power arm 130 and the power part 215 of tripping 210 are matched It closes, pivot part 110 is being equipped with hinge recess 111 close to 130 side of power arm, and the articulated jib 221 of connecting rod 220 reaches hinge recess In 111, articulated shaft 226 passes through the side wall of hinge recess 111 and articulated jib 221 to be hinged handle 100 and connecting rod 220.

The embodiment as shown in Figure 16,21, the handle 100 include two opposite and spaced power arms 130, are jumped Power part 215 on button 210 coordinates with two power arms 130 simultaneously, and pivot part 110 is in the circumference close to 130 side of power arm It is equipped with the hinge recess 111 for accommodating articulated jib 221, two power arms 130 are separately positioned on the both sides of the edge of hinge recess 111 The front and back in connecting rod 220 is corresponded to above and respectively, it is hinged that articulated jib 221 passes through the inside of two power arms 130 to reach It is connect, is equipped on articulated jib 221 and articulated shaft with the side wall of 111 both sides of hinge recess by articulated shaft 226 in groove 111 Hinge hole 225 is stretched out at the both ends of the hinge hole 225 of 226 interference fits, articulated shaft 226, on the side wall of 111 side of hinge recess Equipped with the connection counterbore 112 with 226 one end fits of articulated shaft, the side wall of the other side is equipped with to be coordinated with 226 other end of articulated shaft Connection through-hole 113, the distance between the width of hinge recess 111 and two power arms 130 should be more than connecting rod 220 thickness Degree.

First connecting rod 220 can be put into hinge recess 111 in assembly, then by automation equipment by articulated shaft 226 are pushed in turn connection through-hole 113, hinge hole 225 and connection counterbore 112, and interference is formed in articulated shaft 226 and hinge hole 225 While cooperation, the assembly of connecting rod 220 and handle 100 is also completed, has the characteristics that design convenient for Automated assembly.In addition, Coordinated simultaneously with two power arms 130 by power part 215 in tripping 210, is not only driven and more balances, is reliable, power arm 130 Wearability is also more preferable, can further prevent causing operating mechanism not detain again since power arm 130 is worn, extend breaker Service life, it is of course also possible to only the side of hinge recess 111 be arranged power arm 130, the other side is not provided with power arm 130, belong to the protection domain of the invention.

Further, the motion arm 120 of the handle 100 is respectively equipped with and finger along the both sides side of its rotation direction The operation concave surface 121 of finger pulp cooperation, two operation concave surfaces 121 are symmetricly set on both sides, can not only improve frictional force, prevent from closing Finger skids with handle 100 when lock and separating brake, and also is compliant with ergonomics, can improve the hand of finger manipulation handle 100 Sense.

As Figure 22-23 shows that a kind of fast trip mechanism of breaker, the fast trip mechanism include and dropout The dropout part 400 that the armature 340 of protection mechanism 300 is correspondingly arranged, tripping protection mechanism 300 include snap-fitted with operating mechanism Armature 340, side of the armature 340 far from operating mechanism be equipped with bimetal leaf 320, on bimetal leaf 320 be equipped with and rank Shell is stretched out in one end of 340 spaced pole shoe 330 of iron, dropout part 400, and the other end is correspondingly arranged with armature 340.This implementation The fast trip mechanism of the breaker of mode pushes armature 340 to be released and tripping 210 far from tripping 210 by dropout part 400 It is snap-fitted, it is producing and can easily test breaker when usually using and can normally thread off, and needed in breaker When quickly disconnecting electric circuit, it is only necessary to which the strength of very little stirs dropout part 400 and can need not use circuit breaker trip Prodigious strength stirs handle 100 by breaker open operation, and the speed that electric circuit is disconnected when circuit breaker trip also compares separating brake When faster, it is safer.

The tripping 210 and bimetal leaf 320 are separately positioned on the both sides of armature 340, and the dropout part 400 setting exists The front of tripping 210 and dropout part 400 and tripping 210 are located at the same side of armature 340, and pole shoe 330 is arranged in bimetal leaf Side far from armature 340 on 320, dropout part 400 can push armature 340 far from tripping 210, and one end of armature 340 passes through Shrapnel 311 is connect with one end of bimetal leaf 320.It is, of course, preferable to, the other end of armature 340 passes through connection sheet 313 and double gold Belong to piece 320 to coordinate, STATEMENT OF FEDERALLY SPONSORED 400 can push directly on armature 340.As the other embodiment of tripping protection mechanism 300, rank Iron 340 can also be arranged in the left side of connection sheet 313, and dropout part 400 can be by pushing connection sheet 313, can also be by pushing away Moving armature 340 makes tripping 210 unbutton, and belongs to the protection domain of the invention.

Specifically, a kind of embodiment as shown in Figure 22-25, the dropout part 400 include dropout department of assembly 410 and It is separately positioned on rapid-releasing portion 420 and the pushing part 430 at 410 both ends of dropout department of assembly, shell is equipped with instruction opening 4200, Sliding slot 4201 is equipped in instruction opening 4200, rapid-releasing portion 420 reaches in instruction opening 4200 across sliding slot 4201 for people Work operates.Further, the bottom of the instruction opening 4200 is equipped with cue mark 421, rapid-releasing in the side of sliding slot 4201 Portion 420 is equipped with the indicator board 422 for blocking cue mark 421, and dropout part 400 is against the left side of armature 340, works as breaker When normal separating brake, armature 340 is due to that will not unbutton so dropout part 400 would not also move, and block finger by indicator board 422 421 (Figure 24) are remembered in indicating, and due to that can not observe cue mark 421, then observer is recognized that electric circuit does not occur Failure, breaker are to disconnect electric circuit by normal separating brake, and when circuit breaker trip, armature 340 after unbuttoning due to that can support Can not be resetted on the right side of tripping 210, indicator board 422 acted with armature 340 after because of gravity (breaker in actual use, Downward, left side is upward on the right side of breaker in figure) or blocking structure set in addition can not also reset, make indicator board 422 expose Cue mark 421 (Figure 25), due to that can observe cue mark 421, then observer is recognized that electric circuit has occurred Failure, breaker are to disconnect electric circuit by tripping, are directly broken it may determine that going out electric circuit by cue mark 421 The reason of opening, it is very convenient.Dropout part 400 in the above embodiment is the lever construction being pivoted in shell, certainly, Dropout part 400 can also use straight-bar structure, push directly on or pull armature 340 and 210 rapid-releasing of tripping, belong to this hair The protection domain of bright creation.

As another embodiment, shell is not stretched out in rapid-releasing portion 420, and instruction opening 4200 is matched with indicator board 422 It closes, dropout part 400 can drive indicator board 422 to turn to the lower section of instruction opening 4200 in rotation, make indicator board 422 can be with It is measured from shell appearance, or the side for driving indicator board 422 to go to instruction opening 4200, makes indicator board 422 can not be from shell Appearance measures, alternatively, be that indicator board 422 is arranged in shell positioned at the middle part in rapid-releasing portion 420, rapid-releasing portion 420 Shell is stretched out for operation in end, belongs to the protection domain of the invention.

As shown in figure 27,430 l-shaped of the pushing part comprising be arranged between dropout department of assembly 410 and tripping 210 First push side 431, and extend to tripping 210 positive second push side 432, second push side 432 one end It being connect with the first promotion side 431, the other end of the second promotion side 432 is equipped with the promotion cambered surface 433 coordinated with armature 340, The pushing part 430 being arranged by l-shaped can not only make the more compact structure of dropout part 400, and intensity also higher.

Further, the dropout department of assembly 410 is respectively equipped with and is taken off on two opposite side walls of shell at cylinder The supporting table 412 (Fig. 7) of the front and back cooperation of department of assembly 410 is detained, supporting table 412 is at tubular, in dropout department of assembly 410 It is respectively equipped with the pivot platform 413 for reaching and coordinating in supporting table 412 on the both sides of front and back, is filled pivoting platform 413 and threading off It is equipped with the hole 411 that is connected for connecting universal driving shaft 450 with portion 410, dropout department of assembly 410 can by supporting table 412 With shell reliable fit, ensure stability when dropout part 400 works.

When breaker is used for the electric system of three-phase four-wire system, multiple breakers are arranged side by side and are respectively used to different phases Line, the dropout part 400 between multiple breakers are connected by universal driving shaft 450, the tripping wherein arbitrary one-phase circuit breaks down When, it drives other breakers also to disconnect by universal driving shaft 450, realizes the protection to entire electric circuit.As illustrated in figures 26-29, Including multiple breakers corresponding with each phase line, and the universal driving shaft 450 that is connected between multiple breakers, each breaker Shell in be equipped with dropout part 400, the dropout part 400 of multipole circuit breaker is connected by a universal driving shaft 450, the dropout part 400 between operating mechanism and tripping protection mechanism 300, is equipped in the side of dropout part 400 and matches with tripping protection mechanism 300 The pushing part 430 of conjunction, the other side are equipped with the linkage portion 440 coordinated with operating mechanism.Pass through universal driving shaft 450 and breakers at different levels Dropout part 400 connects, and dropout part 400 is arranged between operating mechanism and tripping protection mechanism 300, when any breaker is jumped When lock, the operating mechanism in the breaker pushes the linkage portion 440 of dropout part 400, dropout part 400 to pass through 450 band of universal driving shaft again The dropout part 400 moved in other breakers rotates, and the dropout part 400 in other breakers is triggered other disconnected by pushing part 430 Tripping protection mechanism 300 in the device of road is threaded off, to realize that the protection of entire electric circuit, compact overall structure are reliable.Certainly, Universal driving shaft 450 can also connect buckle releaser arranged side by side other than connecting breaker unit, including leakage tripping device, long-range Buckle releaser, under-voltage over-pressed buckle releaser etc..

Preferably, in the pushing part 430 of the dropout part 400 and linkage portion 440 are generally aligned in the same plane, dropout can be made Torque on part 400 is transmitted in the same plane, so that dropout part 400 is acted at work more rapid and reliable.

As shown in figure 26, the preferred embodiment that a kind of dropout part 400 is arranged, the operating mechanism include and protection of threading off The connecting rod 220 mechanism 300 snap-fitted tripping 210 and be stacked above tripping 210；The linkage portion of dropout part 400 440 stackings are equipped with side and the linkage portion that connecting rod 220 is extended to front positioned at the upper front of connecting rod 220 in tripping 210 440 and the linkage board 216 that coordinates of connecting rod 220, the pushing part 430 of the dropout part 400 and linkage portion 440 are located at same flat Face.The present embodiment by tripping 210, connecting rod 220 and is threaded off by the way that pushing part 430 and linkage portion 440 to be arranged in the same plane The linkage portion 440 of part 400 is stacked, and can not only reduce the difficulty of processing and assembly, and can be convenient for Automated assembly Design.When threading off, linkage board 216 can not only push the circuit breaker tripping of other phases of the drive of dropout part 400, but also can The contact arm 222 of connecting rod 220 is pushed to accelerate the speed threaded off, to improve the breaking capacity of breaker, when closing a floodgate, tripping 210 On linkage board 216 need avoid connecting rod 220.Certainly, even if without dropout part 400, linkage can also be set in tripping 210 Plate 216, when threading off, the linkage board 216 in tripping 210 can also push the contact arm 222 of connecting rod 220 to accelerate the speed threaded off Degree, belongs to the protection domain of the invention.

Further, the tripping 210 is at U-shaped comprising pivotal arm 211 and tripping protection mechanism with housing hinge 300 snap-fitted hasp portions 213, and the linking arm 212 that is connected between pivotal arm 211 and hasp portion 213, in linking arm 212 are equipped with the power part 215 coordinated with handle 100, and the connection coordinated with the linkage portion 440 of dropout part 400 and connecting rod 220 Movable plate 216, power part 215 are connect by resetting spring 201 with connecting rod 220, and linkage board 216 and tripping protection mechanism 300 are distinguished Positioned at the both sides of dropout part 400.The connecting rod 220 includes the articulated jib 221 hinged with handle 100, and is connected with movable contact 510 The contact arm 222 connect, contact arm 222 are equipped with the spring carrier arm 223 being connect with resetting spring 201, contact arm 222 and articulated jib 221 connect at V-shaped and can be avoided when being formed in combined floodgate between articulated jib 221 and contact arm 222 sky of linkage board 216 Between.Certainly, the articulated jib 221 of connecting rod 220 can also be connect with contact arm 222 at other shapes, but at V-shaped connect and The space that the linkage board 216 in tripping 210 can be avoided when being formed in combined floodgate between articulated jib 221 and contact arm 222, can make More compact structure reduces the space occupied.

As shown in figure 26, another preferred embodiment that a kind of dropout part 400 is arranged, the tripping protection mechanism 300 wrap Bimetal leaf 320 is included, 321 end of fixing end of bimetal leaf 320 is located in shell close to one end of handle 100, and bimetal leaf The swinging end 322 of 320 heated bendings is located at one end close to movable contact 510 in shell, swinging end 322 by flexible connection 535 with Movable contact 510 connects, and the pushing part 430 of the dropout part 400 and linkage portion 440 are generally aligned in the same plane.Pass through the guarantor that will thread off One end for connect with shell of shield mechanism 300 is located at shell close to one end of handle 100, and bimetal leaf 320 is heated the pendulum bent Moved end 322 is located in shell close to one end of movable contact 510 so that the flexible connection 535 of connection movable contact 510 and bimetal leaf In the downside of breaker, universal driving shaft 450 and dropout part 400 can be avoided in this way so that the overall structure of breaker is more tight It gathers, is arranged in the same plane convenient for pushing part 430 and linkage portion 440, the transmission of tripping force can not only be made more reliable, and The difficulty of processing and assembly is reduced, Automated assembly is convenient for.

Specifically, the dropout part 400 includes the dropout department of assembly 410 being mounted on universal driving shaft 450, assembled threading off The one end in portion 410 is equipped with the rapid-releasing portion 420 reached outside Shell of circuit breaker, and the other end is equipped with pushing part 430, in dropout part 400 side of the pushing part 430 far from tripping protection mechanism 300 is equipped with the linkage portion 440 coordinated with tripping 210；It is quickly de- Buckle 420 can drive universal driving shaft 450 to rotate and trigger the releasing of tripping protection mechanism 300 and operating mechanism by pushing part 430 It is snap-fitted.Shell is equipped with instruction opening 4200, and sliding slot 4201, rapid-releasing portion 420 are equipped in instruction opening 4200 It is reached in instruction opening 4200 across sliding slot 4201；It is equipped with cue mark 421 in instruction opening 4200, in rapid-releasing portion 420 are equipped with rapid-releasing portion 420 equipped with the indicator board 422 for blocking cue mark 421.

Further, the hole that is connected for connecting universal driving shaft 450 is equipped in the dropout department of assembly 410 of dropout part 400 411, the linkage avoid holes 414 for avoiding universal driving shaft 450 are equipped on shell, universal driving shaft 450 is worn by the avoid holes 414 that link Go out shell.In addition, the section of universal driving shaft 450 is preferably rectangular, it is connected hole 411 and the shape of universal driving shaft 450 matches, when The section of right universal driving shaft 450 can also use rectangle, triangle or other polygons, belong to the protection model of the invention It encloses.

As shown in figure 27, the linkage portion 440 at V-type engraved structure comprising the use being connect with 430 one end of pushing part In cooperation linkage board 216 first support bar 441 and be connected to the another of the other end of first support bar 441 and pushing part 430 Second support bar 442 between one end, first support bar 441 are connect with second support bar 442 at V-shaped, can not only be improved The structural strength of linkage portion 440, but also the weight of dropout part 400, the consumption for reducing rapidoprint, energy-saving ring can be reduced Protect, certainly, linkage portion 440 can also l-shaped or other shapes, second support bar 442 can not also be set, the present invention is belonged to The protection domain of creation.As shown in Figure 26,28, the first support bar 441 includes into the first support side edge of V-shape connection 441a and the second support side edge 441b, the first support side edge 441a coordinates with the linkage board 216 in tripping 210, the first support-side Side 441a is preferably vertical connection with second support bar 442, passes through the first support side edge that will be used to that tripping 210 to be coordinated to act 441a is vertically arranged with second support bar 442, can be improved the structural strength of dropout part 400, be prolonged the service life.

Further, the linkage board 216 of tripping 210 is arranged perpendicular to the pivotal arm 211 of tripping 210, when tripping 210 and takes off Button protection mechanism 300 release it is snap-fitted after, resetting spring 201 drive linkage board 216 be vertically against the first support side edge 441a On, by the way that by linkage board 216, both perpendicular to pivotal arm 211 and the first support side edge 441a settings, tripping 210 is in shock of threading off Active force can be transmitted more reasonably when dropout part 400, and especially when multipole circuit breaker links, tripping 210 passes through linkage Axis 450 will hit the tripping protection mechanism 300 in multipole circuit breaker simultaneously, have the characteristics that compact-sized, with long service life.

The above content is the specific preferred embodiments of combination to being further described made by the invention, cannot Assert that the specific implementation of the invention is confined to these explanations.For the ordinary skill of the invention technical field For personnel, without departing from the concept of the premise of the invention, a number of simple deductions or replacements can also be made, should all regard To belong to the protection domain of the invention.

Claims (10)

1. a kind of breaker, it is characterised in that：Including shell and the handle being arranged in shell (100), operating mechanism, dropout Protection mechanism (300) and dropout part (400), tripping protection mechanism (300) include the armature snap-fitted with operating mechanism (340), armature (340) far from operating mechanism side be equipped with bimetal leaf (320), on bimetal leaf (320) be equipped with Armature (340) spaced pole shoe (330), dropout part (400) are pivoted in shell, and one end of dropout part (400) is stretched Go out shell, the other end is correspondingly arranged with armature (340), and dropout part (400) can trigger armature (340) action and release and operation machine Structure it is snap-fitted.

2. breaker according to claim 1, it is characterised in that：One end of the armature (340) is equipped with and bimetal leaf (320) shrapnel (311) of one end connection, the other end are equipped with the connection sheet (313) coordinated with bimetal leaf (320) other end, Bimetal leaf (320) is bent and passes through tripping of the connection sheet (313) with moving armature (340) releasing and operating mechanism when overload (210) snap-fitted.

3. breaker according to claim 1, it is characterised in that：Including the universal driving shaft being connected between multiple breakers (450), universal driving shaft (450) is connect with the dropout part (400) of multiple breakers, and the side of dropout part (400) is equipped with and operation machine The linkage portion (440) of tripping (210) cooperation of structure passes through tripping (210) when any circuit breaker trip and dropout part (400) is pushed to turn Dynamic, dropout part (400) drives the dropout of the corresponding breaker of dropout part (400) promotion of other breakers by universal driving shaft (450) Protection mechanism (300) is by other circuit breaker trips.

4. breaker according to claim 1, it is characterised in that：The dropout part (400) includes dropout department of assembly (410) And rapid-releasing portion (420) and pushing part (430) at dropout department of assembly (410) both ends are separately positioned on, shell, which is equipped with, to be referred to Show opening (4200), sliding slot (4201) is equipped in instruction opening (4200), rapid-releasing portion (420) are stretched across sliding slot (4201) Into instruction opening (4200).

5. breaker according to claim 4, it is characterised in that：The dropout part (400) further includes being arranged in pushing part (430) close to the linkage portion (440) with operating mechanism cooperation of the side of operating mechanism.

6. breaker according to claim 4, it is characterised in that：Cue mark is equipped in instruction opening (4200) (421), rapid-releasing portion (420) are equipped with the indicator board (422) for blocking cue mark (421).

7. breaker according to claim 4, it is characterised in that：The dropout department of assembly (410) at cylinder, shell The supporting table (412) coordinated with the front and back of dropout department of assembly (410), supporting table are respectively equipped on two opposite side walls (412) it at tubular, is respectively equipped on the both sides of the front and back of dropout department of assembly (410) and the inner wall of supporting table (412) The pivot platform (413) of cooperation is equipped with the hole (411) that is connected on pivoting platform (413) and dropout department of assembly (410).

8. breaker according to claim 3 or 4, it is characterised in that：The operating mechanism includes connecting rod (220) and tripping (210), connecting rod (220) one end is connect with handle (100), and the other end is connect with movable contact (510)；Tripping (210) is pivotally mounted In shell, tripping (210) is equipped with the hasp portion (213) of tripping protection mechanism (300) overlap joint cooperation and matches with handle (100) The power part (215) of conjunction, and connect with tripping (210) by resetting spring (201), it is equipped with and dropout in tripping (210) The linkage board (216) of part (400) cooperation.

9. breaker according to claim 8, it is characterised in that：The tripping (210) is at U-shaped comprising with shell Hinged pivotal arm (211) and the snap-fitted hasp portion (213) of armature (340), and be connected to pivotal arm (211) and take Linking arm (212) between buckle (213) is equipped with the power part (215) coordinated with handle (100) on linking arm (212), with And the linkage board (216) with dropout part (400) cooperation, power part (215) are connect by resetting spring (201) with connecting rod (220), Linkage board (216) and armature (340) are located at the both sides of dropout part (400).

10. the fast trip mechanism of breaker according to claim 9, it is characterised in that：The connecting rod (220) include with The hinged articulated jib (221) of handle (100), and the contact arm (222) that is connect with movable contact (510), contact arm are set on (222) Have a spring carrier arm (223) being connect with resetting spring (201), contact arm (222) connect at V-shaped with articulated jib (221) and The space of evacuation linkage board (216) is formed between articulated jib (221) and contact arm (222).