CN108878225A

CN108878225A - Breaker

Info

Publication number: CN108878225A
Application number: CN201810772343.8A
Authority: CN
Inventors: 鲁骞; 刘成萍; 胡建帅
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2018-11-23
Anticipated expiration: 2038-07-13
Also published as: CN108878225B

Abstract

A kind of breaker; it includes shell and is arranged in the intracorporal handle of shell, operating mechanism and tripping protection mechanism, and operating mechanism includes connecting rod and tripping, and connecting rod one end is connect with handle; the other end is connect with movable contact, and an articulated shaft passes through handle and connecting rod is hinged by handle and connecting rod；Tripping is pivoted in shell; tripping is equipped with the power part with the hasp portion of tripping protection mechanism overlap joint cooperation and with handle cooperation; and it is connect by reset spring with tripping; the connection of connecting rod and handle is realized also cross connecting rod and handle by one; it is not only easy to assembly; and it is convenient for Automated assembly, connecting rod and handle can also be installed after being integrated and be installed in breaker again.In addition, being equipped with hinge recess on handle, the articulated jib of connecting rod reaches in hinge recess on the inside of two power arms of handle, not only easy to assembly, but also is driven relatively reliable.

Description

Breaker

Technical field

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

Background technique

Breaker is the important component of electrical equipment industry, has been obtained and is widely applied, when electric circuit works just Chang Shi, breaker can supply the circuit of electric energy by closing or opening, 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.

The assembly of the operating mechanism and handle of existing breaker is excessively complicated, needs to cause by being assembled by hand Assembly efficiency is too low, does not meet the trend of the intelligence manufacture, Automated assembly advocated in China.In addition, existing breaker is logical Often movable contact is fixed on the connecting rod of operating mechanism, with the increase of current specification, in order to reduce product temperature rise, to contact knot The thickness and width of structure requires also to accordingly increase, and causes part material to increase, production cost increases, product occupied space is big.

Summary of the invention

It is simple, high reliablity disconnected to provide a kind of structure for the defect for aiming to overcome that the prior art of the invention Road device.

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

A kind of breaker comprising shell and setting are in the intracorporal handle 100 of shell, operating mechanism and tripping protection mechanism 300, operating mechanism includes connecting rod 220 and tripping 210, and 220 one end of connecting rod is connect with handle 100, and the other end and movable contact 510 connect It connects, an articulated shaft 226 passes through handle 100 and connecting rod 220, and handle 100 and connecting rod 220 is hinged；Tripping 210 is pivoted on In shell, tripping 210 is equipped with and the hasp portion 213 of the overlap joint cooperation of tripping protection mechanism 300 and the power part cooperated with handle 100 215, and connect by reset spring 201 with tripping 210.

Optionally, the handle 100 includes being pivoted on the intracorporal pivot block 110 of shell, and be separately positioned on pivot The power part 215 of the motion arm 120 and power arm 130 at 110 both ends of seat, power arm 130 and tripping 210 cooperates, and pivot part 110 exists It is equipped with hinge recess 111 close to 130 side of power arm, the articulated jib 221 of connecting rod 220 reaches in hinge recess 111, articulated shaft 226 to pass through the side wall of hinge recess 111 and articulated jib 221 hinged by handle 100 and connecting rod 220.

Optionally, the connecting rod 220 includes the articulated jib 221 hinged with handle 100, and be connected with articulated jib 221 Contact arm 222, contact arm 222 are fixedly connected with the moving contact 224 of copper, and moving contact 224 is equipped with movable contact 510 and moving contact 224 are connect by flexible connection 535 with the bimetal leaf 320 of tripping protection mechanism 300.

Optionally, for the connecting rod 220 for iron material matter and at flat plate, the contact of connecting rod 220 is arranged in moving contact 224 The side of arm 222；Moving contact 224 is at zigzag comprising is arranged in parallel in the first contact plate 2241 of 222 side of contact arm, sets The second contact plate 2242 on 222 extended line of contact arm is set, and is connected to the first contact plate 2241 and the second contact plate The side of bending contact plate 2243 between 2242, the first contact plate 2241 is fixedly connected with contact arm 222, the second contact plate 2242 side is fixedly connected with movable contact 510, the center line 1 and connecting rod of the contact surface that movable contact 510 is contacted with stationary contact 520 Center line 2 on 220 thickness is arranged on same straight line.

Optionally, the side of the contact arm 222 of the connecting rod 220 is equipped with adjutage 2231, in 2231 side of adjutage It is equipped with the spring carrier arm 223 connecting with reset spring 201.

Optionally, the handle 100 includes two opposite and spaced power arms 130, and two power arms 130 are distinguished The two sides of hinge recess 111 are set, and the inside that articulated jib 221 passes through two power arms 130 reaches in hinge recess 111；Institute It states articulated jib 221 and is equipped with the hinge hole 225 being interference fitted with articulated shaft 226.

Optionally, the handle 100 is respectively equipped with the behaviour with finger pulp loss cooperation along the two sides side of its rotation direction Make concave surface 121, two operation concave surfaces 121 are symmetricly set on two sides.

Optionally, the connecting rod 220 is welded with movable contact 510, and the first positioning convex closure 2244 is equipped on movable contact 510, The connecting rod 220 of iron material matter is equipped with the first positioning hole 2245 cooperated with the first positioning convex closure 2244.

Optionally, the connecting rod 220 is stacked with tripping 210, and connecting rod 220 is arranged on the front of tripping 210 The power part 215 of side, tripping 210 extends to 100 lower section of handle to front and the power arm 130 of handle 100 cooperates.

Optionally, the tripping 210 is at U-shaped comprising linking arm 212 and is oppositely arranged on linking arm 212 respectively The pivotal arm 211 at both ends and hasp portion 213, pivotal arm 211 and housing hinge, hasp portion 213 are used for and tripping protection mechanism 300 Snap-fitted, linking arm 212 is equipped with the power part 215 for extending to 100 lower section of handle, 201 one end of reset spring and power part 215 connections, the other end are connect with connecting rod 220.

The breaker of the invention realizes connecting rod 220 and handle also cross connecting rod 220 and handle 100 by one 100 connection, it is not only easy to assembly, but also it is convenient for Automated assembly, connecting rod 220 and handle 100 can also be installed after being integrated It is installed in breaker again.In addition, being equipped with hinge recess 111 on handle 100, the articulated jib 221 of connecting rod 220 passes through handle The inside of 100 two power arms 130 reaches in hinge recess 111, not only easy to assembly, but also is driven relatively reliable.In addition, It is arranged on moving contact 224 by increasing the moving contact 224 of setting copper in the side of connecting rod 220, then by movable contact 510, open circuit At work, electric current flows to movable contact 510 by moving contact 224 to device, can not only avoid leading due to electric current by connecting rod 220 The problem of causing the temperature rise of circuit breaker internal, but also have the characteristics that reduce production cost, be convenient for assembly.Moreover, moving contact 224 Extended line direction bending by from bending contact plate 2243 to contact arm 222 connects movable contact 510 with what stationary contact 520 contacted The center line 1 of contacting surface and the center line 2 on 220 thickness of connecting rod are arranged on same straight line, have reliable transmission, convenient for assembly The characteristics of.In addition, cooperating simultaneously with two power arms 130 in tripping 210 by power part 215, it is not only driven more balance, can It leans on, the wearability of power arm 130 is also more preferable, can prevent from causing operating mechanism not detain again since power arm 130 is worn, prolong The service life of long breaker.

Detailed description of the invention

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 elastic slice；

Figure 10 is the first embodiment of the invention elastic slice；

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

Figure 12 is second of embodiment of the invention elastic slice；

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 cooperation schematic diagram of the invention dropout part and 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 embodiment

Below in conjunction with the embodiment that attached drawing 1 to 29 provides, the specific implementation of the breaker of the invention is further illustrated 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 setting in the intracorporal handle 100 of shell, 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 the tripping 210 of operating mechanism and the overlap joint of tripping protection mechanism 300 cooperate, stationary contact 520 and dynamic touching 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 Contacting 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 separate with stationary contact 520, makes breaker open operation；As shown in Fig. 2, working as circuit in breaker closing It breaks down, movement is released the bonding relation between tripping 210 by tripping protection mechanism 300 makes circuit breaker trip, movable contact 510 separate 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 tripping protection machine The hasp portion 213 of the overlap joint cooperation of structure 300 and the power part 215 cooperated with handle 100, and pass through reset spring 201 and tripping 210 connections.Tripping protection mechanism 300 and tripping 210 are snap-fitted to the limit of tripping 210, substantially remain in tripping 210 static State, when handle 100 swings to closing position (Fig. 1) or open position (Fig. 5), 100 drive link 220 of handle drives dynamic touching 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 Movement 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, reset 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 Snap-fitted (Fig. 3) is formed again.

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 the spaced pole shoe 330 of armature 340, one end of armature 340 be equipped with The elastic slice 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, The bending of bimetal leaf 320 releases snap-fitted, the electromagnetism of pole shoe 330 when short-circuit with operating mechanism with moving armature 340 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 cooperates 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 function 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 of the present invention machine The embodiment of structure cooperates, 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 of tripping 210 is arranged in connecting rod 220, the left end of tripping 210 and housing hinge, middle part are equipped with The power part 215 cooperated 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 cooperates；The top of connecting rod 220 and hand Handle 100 is hinged, and bottom end is connect by reset spring 201 with tripping 210, when handle 100 goes to closing position and open position, drives Dynamic connecting rod 220 is mobile, connect in the bottom end of connecting rod 220 with movable contact 510, operating mechanism is arranged in tripping protection mechanism 300 Right side and the overlap joint of tripping 210 cooperate, and are equipped with a connecting terminal 530, the connecting terminal on the right side of tripping protection mechanism 300 530 connect with movable contact 510, connect in the lower left of shell equipped with another connecting terminal 530 and with the connecting terminal 530 Static contact 521, static contact 521 are equipped with stationary contact 520, and connecting terminal 530 is also possible to the inserting foot cooperated 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 is the elastic slice 311 being fixedly connected with one end of bimetal leaf 320, the other end is 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 elastic slice 311 fixing ends 321 being fixedly connected, and the swinging end 322 of the other end and the cooperation of connection sheet 313 is set, pole shoe 330 is arranged It is arranged at the middle part of bimetal leaf 320 and the interval of armature 340, the fixing end 321 of bimetal leaf 320 passes through connecting plate 360 and connects 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 overload when be bent and pass through connection sheet 313 with moving armature 340 overcome the effect of elastic slice 311 to Right side far from tripping 210 is mobile, and when being 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 elastic slice 311 in short circuit Effect it is mobile to the right side far from tripping 210, when being more than certain displacement, release the hasp of armature 340 and tripping 210 Cooperation, to realize short-circuit protection, has the characteristics that structure is simple, does not need traditional electromagnetic system by coil and adsorbs dynamic iron core, The structure of operating mechanism tripping is driven 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 and the swinging end 322 of bimetal leaf 320 cooperate, 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 elastic slice 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 and vertical direction form included angle A, the folder of bimetal leaf 320 and 313 side of connection sheet after assembly Side is bonded and pulls elastic slice 311 to make armature 340 and vertical direction formation included angle B, angle 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 elastic slice 311 to far from double gold Belong to the side bending of piece 320, then curved to inflection with moving armature 340 by bimetal leaf 320, can not only make armature 340 and double Cooperation between sheet metal 320 is relatively reliable, but also the active force that elastic slice 311 applies armature 340 can be improved, reduction Armature 340 needs mobile stroke in tripping.In addition, bimetal leaf 320 drives elastic slice 311 to act by connection sheet 313, knot Structure is more compact, and certain bimetal leaf can also drive armature 340 by additional connecting rod indirectly, and here to elastic slice 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 elastic slice 311 and connection sheet 313 as show Fig. 8-10, the elastic slice 311 and connection sheet 313 Between be equipped with auxiliary piece 312, elastic slice 311 and connection sheet 313 are connected by auxiliary piece 312, and armature 340 is connect with auxiliary piece 312, Elastic slice 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 elastic slice 311 and connection sheet 313, elastic slice 311 and connection sheet 313 can also respectively after machine-shaping again It is welded respectively with armature 340, belongs to the protection scope 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 takes on armature 340 first The corresponding second hasp slot 2101 of catching groove 2100, 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 is bigger, cooperate it is more reliable, And cooperation is also smoother, the case where being not in clamping stagnation.Preferably, it is equipped on elastic slice 311 and connection sheet 313 and is equipped with riveting Location hole 341 is connect, armature 340 is equipped with the riveting convex closure matched with riveting location hole 341, 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 into shell by supporting element 350.The side of the elastic slice 311 It is connect with the fixing end 321 of bimetal leaf 320, the other side is equipped with the supporting element 350 mating with the shell of breaker, support Part 350 is fixedly connected with elastic slice 311.The inserting groove 3500 mating with supporting element 350, elastic slice are equipped on the side wall of shell 311, it can be formed a fixed connection respectively by welding between bimetal leaf 320 and supporting element 350, naturally it is also possible to by other Mode connects, and elastic slice 311, bimetal leaf 320 and supporting 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 supporting 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 supporting 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 elastic slice 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 cooperated with 354 side of plugboard, and positioning column 3501 can be against plugboard 354 side plays the role of positioning supporting 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.Specifically as shown in Figure 1-3, bimetal leaf 320 is arranged in armature 340 Side far from operating mechanism, the swinging end 322 and movable contact 510 of the bimetal leaf 320 are located at the intracorporal the same end of shell, institute The fixing end 321 stated is located at one end in shell close to handle 100, and the swinging end 322 passes through flexible connection 535 and movable contact 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 Two sides make armature 340 be against the first hasp slot 2100 when snapping on armature 340 far from 340 rotation center side of armature On side wall, armature 340 is pulled to the side far from 340 rotation center of armature, rather than pushes armature to the direction of rotation center 340, guarantee that the flexible stroke of bimetal leaf 320 is longer in the case where not only making space more compact, movement is sensitiveer, and And the flexible connection 535 for connecting 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 it is convenient for the setting of breaker linkage mechanism.

Further, the side of the fixing end 321 of the bimetal leaf 320 is connect with elastic slice 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 connecting 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 cooperated 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 for adjusting screw 364, and user can adjust the promotion supporting element of screw 364 by screwing 350 band moving armatures 340 and bimetal leaf 320 rotate to the left, and to change the initial position of bimetal leaf 320, realize and adjust overload The function of drop-away time.

If Figure 12 shows the first embodiment of pole shoe 330, the setting of pole shoe 330 is in bimetal leaf 320 far from rank The side of iron 340, i.e. bimetal leaf 320 are arranged towards the curved side of passive layer, pole shoe 330 and 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, and connecting pin 331 can be by modes such as welding and 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 bimetal leaf 320 Bending.

Further, the bimetal leaf 320 is respectively equipped with pole shoe on the side of 320 two sides of bimetal leaf at I font Escape groove 333, at U-shaped, 330 two sides side of pole shoe is respectively protruding into pole shoe escape groove 333 to be cooperated 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 the 330 coil positioning port two sides side of pole shoe, i.e., one end far from connection sheet 313 is set There is the evacuation notch 334 for avoiding armature 340, after bimetal leaf 320 is bent certain angle, by avoiding 334 energy of notch Pole shoe 330 is enough avoided to interfere with armature 340.

Further, the bottom side side at 330 middle part of pole shoe is equipped with the connecting pin 331 cooperated 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 applied to processing pole shoe The fabrication hole 336 of convex closure 335 is welded, pole shoe 330 welds convex closure 335 by pole shoe and bimetal leaf 320 welds, 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, for being suitable for the product of different rated current, certainly, pole shoe 330 can also be at other shapes, and pole shoe 330 can also be with It is connect by the other way other than welding with bimetal leaf 320, belongs to the protection scope 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 of tripping 210, tripping 210 is arranged in connecting rod 220 Left end and housing hinge, middle part be equipped with the power part 215 that cooperate with handle 100, the hasp portion 213 of right end and protection machine of threading off 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 and handle 100 are hinged, and bottom end connect with movable contact 510 and connected by reset 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 in the middle part of linking arm 212 for snap-fitted with tripping protection mechanism 300 and extends to handle The power part 215 of 100 lower sections, 201 one end of reset 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 340 of tripping protection mechanism 300 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 rotary table 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, are equipped with tripping slot in the left side of linking arm 212 214, right side is equipped with the linkage board 216 cooperated 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 and handle 100 cooperate, and the left side of power part 215 and one end of reset spring 201 connect It connects, the other end of reset spring 201 is connect with the bottom end that the positive connecting rod 220 of tripping 210 is arranged in.

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 on the side of 222 inside of contact arm, in the side of adjutage 2231 Side is equipped with the spring carrier arm 223 connecting with reset spring 201, and the contact arm 222 of connecting rod 220 and the moving contact 224 of copper are fixed 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 being pivoted on the intracorporal pivot block 110 of shell, and be 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 contacting with position-limit mechanism, the hasp portion 213 of tripping 210 and the hasp of tripping protection mechanism 300 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 reset 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 buckle again 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, tripping 210 hasp portion 213 with Safety is formed between the hasp face of tripping protection mechanism 300 detains distance L again, after tripping 210 and tripping protection mechanism 300 are detained again, Tripping 210 is separated 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 Turning for the outside limitation tripping 210 of pivotal arm 211 is arranged in the pivotal arm 211 at 212 both ends and hasp portion 213, pedestal block reinforcement 202 It is dynamic.Specifically, pedestal block reinforcement 202 is at rectangular parallelepiped structure, and it is located at the left side of the pivotal arm 211 of tripping 210 and the side of shell Between wall, shell is made of pedestal and housing, and shell correspondence is respectively provided with connection above and below pedestal block reinforcement 202 Second screw hole 204 of pedestal and housing, 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 Out), position-limit mechanism, which also can be set, cooperates in shell with linking arm 212 or hasp portion 213, and pedestal block reinforcement 202 can also To belong to the protection scope of the invention at other shapes, such as rectangular, polygon.

As the another embodiment of position-limit mechanism, the position-limit mechanism includes on the side wall for be arranged in 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, hasp portion 213 and tripping protection mechanism 300 when the side wall of handle 100 and handle openings 1200 contacts, in tripping 210 Hasp face between form safety and detain distance L again.Handle openings 1200 can handle 100 to open position rotate when, 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.

If Fig. 1,3,17,18 show another embodiment of position-limit mechanism, position-limit mechanism includes 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 of tripping 210, tripping 210 is arranged in connecting rod 220 Power part 215 extend to front and cooperate 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 contact motion arm 120 can not with handle openings 1200, and be formed between motion arm 120 and handle openings 1200 Prepared separation distance S.Specifically, the side of the corresponding closing position in handle 100 of handle openings 1200 is equipped with and motion arm 120 The bearing surface 1201 being engaged, and the other side of the corresponding open position in handle 100 is equipped with and sets 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 cooperated with pivot block 110, outside is respectively equipped with the inclined-plane cooperated with motion arm 120, and the two sides of pivot block 110 are set There is the shading arm 140 cooperated respectively with bearing surface 1201 and 1202 inside edge of evacuation face, to improve the intracorporal airtightness of 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 after closing position by bearing surface 1201, 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 the rotating counterclockwise on direction of 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 tripping 210 to continue 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 reset spring 201 and be overlapped on armature 340 Top side is to complete to detain (Fig. 6) again.

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 since space limited in shell limits 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 continued to rotate to guarantee hasp portion 213 and armature 340 hasp again, 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.

If to close a floodgate breaker when tripping 210 and 340 hasp of armature, handle 100 is 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 move to stationary contact 520 by connecting rod 220 It is dynamic；If wanting separating brake breaker when tripping 210 and 340 hasp of armature, motion arm 120 is rotated to open position, power arm 130 rotate to the direction close to power part 215, and handle 100 drives moving contact to separate 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 reset spring 201 is lower to drive hasp portion 213 to move down, and tripping 210 pulls connecting rod 220 to drive by reset 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 and armature 340 will close a floodgate when unbuttoning (tripping), will when first being detained, then detained again Motion arm 120 is rotated to open position, and pivot block 110 drives hasp portion 213 upward by 130 propulsion power portion 215 of power arm Mobile, when tripping 210 and/or handle 100 rotate to when contacting with position-limit mechanism, the hasp portion 213 of tripping 210 and tripping are protected Safety is formed between the hasp face of mechanism 300 and detains distance L again, is unclamped again handle 100 by reset spring 201 and is pulled hasp portion 213 The top side for being overlapped on armature 340 is moved down 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 being connected with articulated jib 221, contact arm 222 It is fixedly connected with the moving contact 224 of copper, moving contact 224 is equipped with movable contact 510 and moving contact 224 passes through flexible connection 535 and takes off The bimetal leaf 320 for detaining protection mechanism 300 connects.Specifically, being equipped with the dynamic touching of 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 passes through moving contact 224 and flows to movable contact 510 breaker, can not only It avoids the problem that leading to the temperature rise of circuit breaker internal by connecting rod 220 due to electric current, but also has and reduce 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 Center line 2 on the center line 1 of the contact surface of touching and 220 thickness of connecting rod is arranged 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 cooperated with the first positioning convex closure 2244, the first positioning convex closure in contact arm 222 2244 are welding movable contact 510 and when connecting rod 220, can not only play the role of positioning with first positioning hole 2245, but also The difficulty of assemble welding can be reduced.

Further, the welding recess for accommodating 535 end of flexible connection is equipped 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 for 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 being pivoted on the intracorporal pivot block 110, Yi Jifen of shell The motion arm 120 and power arm 130 at 110 both ends of pivot block are 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 is hinged by handle 100 and connecting rod 220 across the side wall and articulated jib 221 of hinge recess 111.

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 cooperates 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 gone up and respectively corresponds, the inside that articulated jib 221 passes through two power arms 130 reaches hingedly It is connect with the side wall of 111 two sides of hinge recess in groove 111 by articulated shaft 226, is equipped on articulated jib 221 and articulated shaft 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 cooperated 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 greater than connecting rod 220 thickness Degree.

First connecting rod 220 can be put into hinge recess 111 in assembly, then pass through automation equipment for articulated shaft 226 are pushed in turn connection through-hole 113, hinge hole 225 and connection counterbore 112, form interference in articulated shaft 226 and hinge hole 225 While cooperation, the assembly of connecting rod 220 Yu handle 100 is also completed, has the characteristics that design convenient for Automated assembly.In addition, Cooperated simultaneously with two power arms 130 in tripping 210 by power part 215, 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 hinge recess 111 side be arranged power arm 130, the other side is not provided with power arm 130, belong to the protection scope of the invention.

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

If Figure 22-23 shows a kind of fast trip mechanism of breaker, the fast trip mechanism includes and tripping 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, armature 340 far from operating mechanism side be equipped with bimetal leaf 320, on bimetal leaf 320 be equipped with and rank Shell is stretched out in one end of the spaced pole shoe 330 of iron 340, 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 release and tripping 210 far from tripping 210 by dropout part 400 Snap-fitted, can easily test breaker in production and usually use normally thread off, and need in breaker When quickly disconnecting electric circuit, it is only necessary to which the strength of very little stirs dropout part 400 and can not need to use by circuit breaker trip Very big strength stirs handle 100 for 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 two sides of armature 340, and the setting of dropout part 400 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 Far from the side of armature 340 on 320, dropout part 400 can push armature 340 far from tripping 210, and one end of armature 340 passes through Elastic slice 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 cooperate, STATEMENT OF FEDERALLY SPONSORED 400 can push directly on armature 340.As the other embodiment of tripping protection mechanism 300, rank Iron 340 also can be set 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 unbuttons tripping 210, belongs to the protection scope of the invention.

Specifically, a kind of embodiment as shown in Figure 22-25, the dropout part 400 include tripping department of assembly 410 and It is separately positioned on the rapid-releasing portion 420 and pushing part 430 at tripping 410 both ends of department of assembly, shell is equipped with instruction opening 4200, Sliding slot 4201 is equipped in instruction opening 4200, rapid-releasing portion 420 passes through sliding slot 4201 and reaches in instruction opening 4200 for people Work operation.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 Indicating remember 421 (Figure 24), due to that can not observe cue mark 421, then observer be recognized that electric circuit there is no 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, directly pass through cue mark 421 it may determine that electric circuit is disconnected out The reason of opening, it is very convenient.Dropout part 400 in above embodiment is to be pivoted on the intracorporal lever construction of 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 scope 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 the middle part for being located at rapid-releasing portion 420 in shell is arranged in indicator board 422, rapid-releasing portion 420 Shell is stretched out for operation in end, belongs to the protection scope of the invention.

As shown in figure 27,430 l-shaped of pushing part comprising setting is between tripping 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 cooperated with armature 340, It can not only make the more compact structure of dropout part 400 by the pushing part 430 that l-shaped is arranged, and intensity is also higher.

Further, the tripping department of assembly 410 is respectively equipped with and is taken off on two opposite side walls of shell at cylindrical body 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 tripping department of assembly 410 It is respectively equipped with the pivot platform 413 for reaching and cooperating in supporting table 412 on the two sides of front and back, is pivoting platform 413 and tripping dress It is equipped with the hole 411 that is connected for connecting universal driving shaft 450 with portion 410, tripping department of assembly 410 can by supporting table 412 With shell reliable fit, guarantee 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 any 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 being 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 cooperated 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, and dropout part 400 passes 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 the protection of entire electric circuit, compact overall structure is 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-voltage buckle releaser etc..

Preferably, the pushing part 430 of the dropout part 400 and linkage portion 440 are in the same plane, and can make to thread off Torque on part 400 is transmitted in the same plane, acts dropout part 400 at work more rapidly and reliable.

As shown in figure 26, the preferred embodiment that a kind of dropout part 400 is arranged, the operating mechanism include protecting with tripping 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 located at the upper front of connecting rod 220, and side and the linkage portion that connecting rod 220 is extended to front are equipped in tripping 210 440 and the linkage board 216 that cooperates 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 is by the way that pushing part 430 and linkage portion 440 to be arranged in the same plane, by tripping 210, connecting rod 220 and tripping 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.In tripping, 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 of tripping, to improve the breaking capacity of breaker, when closing a floodgate, tripping 210 On linkage board 216 need to avoid connecting rod 220.Certainly, even if without dropout part 400, linkage can also be set in tripping 210 Plate 216, in tripping, 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 scope 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 being connected between pivotal arm 211 and hasp portion 213, in linking arm 212 are equipped with the power part 215 cooperated with handle 100, and the connection cooperated with the linkage portion 440 of dropout part 400 and connecting rod 220 Movable plate 216, power part 215 are connect by reset spring 201 with connecting rod 220, and linkage board 216 and tripping protection mechanism 300 are distinguished Positioned at the two 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 connecting with reset spring 201, contact arm 222 and articulated jib 221 connect at V-shaped and can avoid 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 at one end in shell close to handle 100, and bimetal leaf The swinging end 322 of 320 heated bendings be located in shell close to movable contact 510 one end, 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 Shield one end connected to the housing of mechanism 300 is located at shell close to one end of handle 100, and the heated pendulum bent of bimetal leaf 320 Moved end 322 is located at one end in shell close to movable contact 510, so that 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 tripping department of assembly 410 being mounted on universal driving shaft 450, assembled in tripping The one end in portion 410 is equipped with the rapid-releasing portion 420 reached outside circuit breaker housing, and the other end is equipped with pushing part 430, in dropout part 400 pushing part 430 is equipped with the linkage portion 440 cooperated with tripping 210 far from the side of tripping protection mechanism 300；It is quickly de- Buckle 420 is able to drive universal driving shaft 450 and rotates 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, is equipped with sliding slot 4201, rapid-releasing portion 420 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 tripping 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 Shell out.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 can reduce the weight of dropout part 400, the consumption for reducing rapidoprint, energy-saving ring It protects, certainly, linkage portion 440 can also can also be not provided with second support bar 442, be belonged to the present invention with l-shaped or other shapes The protection scope of creation.As shown in Figure 26,28, the first support bar 441 includes into the first support side edge of V-shape connection Linkage board 216 on 441a and the second support side edge 441b, the first support side edge 441a and tripping 210 cooperates, the first support-side Side 441a and second support bar 442 be preferably it is vertical connect, pass through the first support side edge that will be used to that tripping 210 to be cooperated to act 441a is vertically arranged with second support bar 442, be can be improved the structural strength of dropout part 400, is 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, reset spring 201 drives linkage board 216 to be vertically against the first support side edge 441a On, by the way that linkage board 216 to be arranged both perpendicular to pivotal arm 211 and the first support side edge 441a, tripping 210 is hit in tripping 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, long service life.

It, cannot the above content is combining specific preferred embodiment to be further described to made by the invention Assert that the specific implementation of the invention is only limited to these instructions.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 For the protection scope for belonging to the invention.

Claims

1. a kind of breaker, it is characterised in that：It in the intracorporal handle of shell (100), operating mechanism and is taken off including shell and setting It detains protection mechanism (300), operating mechanism includes connecting rod (220) and tripping (210), and connecting rod (220) one end and handle (100) are even It connects, the other end is connect with movable contact (510), and an articulated shaft (226) passes through handle (100) and connecting rod (220) for handle (100) It is hinged with connecting rod (220)；Tripping (210) is pivoted in shell, and tripping (210) is equipped with and takes with tripping protection mechanism (300) The hasp portion (213) of cooperation and the power part (215) with handle (100) cooperation are met, and passes through reset spring (201) and tripping (210) it connects.

2. breaker according to claim 1, it is characterised in that：The handle (100) includes being pivoted in shell Pivot block (110), and be separately positioned on the motion arm (120) and power arm (130) at pivot block (110) both ends, power arm (130) cooperate with the power part (215) of tripping (210), pivot part (110) is equipped with hinged recessed in close power arm (130) side The articulated jib (221) of slot (111), connecting rod (220) reaches in hinge recess (111), and articulated shaft (226) passes through hinge recess (111) side wall and articulated jib (221) is hinged by handle (100) and connecting rod (220).

3. breaker according to claim 1, it is characterised in that：The connecting rod (220) includes hinged with handle (100) The moving contact (224) of articulated jib (221), and the contact arm (222) being connected with articulated jib (221), contact arm (222) and copper is solid Fixed connection, moving contact (224) is equipped with movable contact (510) and moving contact (224) passes through flexible connection (535) and tripping protection mechanism (300) bimetal leaf (320) connection.

4. breaker according to claim 3, it is characterised in that：The connecting rod (220) is for iron material matter and at flat plate Shape, moving contact (224) are arranged in the side of the contact arm (222) of connecting rod (220)；Moving contact (224) is at zigzag comprising flat Row setting contact arm (222) side the first contact plate (2241), be arranged on contact arm (222) extended line second contact Plate (2242), and the bending contact plate (2243) being connected between the first contact plate (2241) and the second contact plate (2242), The side of first contact plate (2241) is fixedly connected with contact arm (222), the side of the second contact plate (2242) and movable contact (510) it is fixedly connected, the center line (1) and connecting rod (220) thickness of the contact surface that movable contact (510) is contacted with stationary contact (520) On center line (2) be arranged on same straight line.

5. breaker according to claim 3, it is characterised in that：On the side of the contact arm (222) of the connecting rod (220) Equipped with adjutage (2231), the spring carrier arm (223) connecting with reset spring (201) is equipped on adjutage (2231) side.

6. breaker according to claim 2, it is characterised in that：The handle (100) includes that two opposite and interval is set The power arm (130) set, two power arms (130) are separately positioned on the two sides of hinge recess (111), and articulated jib (221) passes through It is reached in hinge recess (111) on the inside of two power arms (130)；The articulated jib (221) is equipped with and articulated shaft (226) mistake It is full of the hinge hole (225) of cooperation.

7. breaker according to claim 1, it is characterised in that：The handle (100) is along the two sides side of its rotation direction The operation concave surface (121) with finger pulp loss cooperation is respectively equipped on face, two operation concave surfaces (121) are symmetricly set on two sides.

8. breaker according to claim 1, it is characterised in that：The connecting rod (220) and movable contact (510) are welded, Movable contact (510) is equipped with the first positioning convex closure (2244), and the connecting rod (220) of iron material matter is equipped with and the first positioning convex closure (2244) first positioning hole (2245) cooperated.

9. breaker according to claim 1, it is characterised in that：The connecting rod (220) is stacked with tripping (210), And the upper front in tripping (210) is arranged in connecting rod (220), and the power part (215) of tripping (210) extends to handle to front (100) power arm (130) of lower section and handle (100) cooperates.

10. breaker according to claim 1, it is characterised in that：The tripping (210) is at U-shaped comprising linking arm (212) and respectively pivotal arm (211) and hasp portion (213) at linking arm (212) both ends, pivotal arm (211) are oppositely arranged on With housing hinge, hasp portion (213) for snap-fitted with tripping protection mechanism (300), linking arm (212) is equipped with and extends to Power part (215) below handle (100), reset spring (201) one end are connect with power part (215), the other end and connecting rod (220) it connects.