CN108878226A - Breaker - Google Patents

Abstract

A kind of breaker,It includes multipole breaker unit arranged side by side,And it is connected to the universal driving shaft between multiple breaker units,Breaker unit includes handle,Movable contact,Stationary contact,The operating mechanism for driving movable contact and stationary contact to be contacting and separating in shell is set,Tripping protection mechanism and with linkage axis connection STATEMENT OF FEDERALLY SPONSORED,The STATEMENT OF FEDERALLY SPONSORED is between operating mechanism and tripping protection mechanism,The pushing part cooperated with tripping protection mechanism is equipped in the side of STATEMENT OF FEDERALLY SPONSORED,The other side is equipped with the linkage portion cooperated with operating mechanism,It is connect by universal driving shaft with the STATEMENT OF FEDERALLY SPONSORED of breaker units at different levels,STATEMENT OF FEDERALLY SPONSORED is arranged between operating mechanism and tripping protection mechanism,When any breaker unit trips,Operating mechanism in the breaker unit pushes the linkage portion of STATEMENT OF FEDERALLY SPONSORED,STATEMENT OF FEDERALLY SPONSORED passes through universal driving shaft again and the STATEMENT OF FEDERALLY SPONSORED in other breaker units is driven to rotate,STATEMENT OF FEDERALLY SPONSORED in other breaker units triggers the tripping of the tripping protection mechanism in other breaker units by pushing part.

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.When breaker is used for the electric system of three-phase four-wire system, need Will according to application install multipole circuit breaker unit electric circuit is protected, wherein any one-phase circuit occur overload or When person's short trouble, in order not to allow the electric circuit of other phases to be affected, the breaker unit in the phase is needed to link other Breaker unit cuts off the electric circuit of other phases simultaneously, to realize the protection to entire electric circuit.But it is existing disconnected In the device of road, the linkage mechanism occupied space for other breaker units that link is big, and assembly difficulty is big, it is difficult to carry out automatic Change trim designs.

Innovation and creation content

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 multipole breaker unit arranged side by side, and be connected to multiple breaker units it Between universal driving shaft 450, breaker unit includes that handle 100, movable contact 510, stationary contact, setting drive movable contact in shell 510 operating mechanism, tripping protection mechanism 300 and the STATEMENT OF FEDERALLY SPONSOREDs 400 being connect with universal driving shaft 450 being contacting and separating with stationary contact, The STATEMENT OF FEDERALLY SPONSORED 400 is equipped in the side of STATEMENT OF FEDERALLY SPONSORED 400 and protects with tripping between operating mechanism and tripping protection mechanism 300 The pushing part 430 that mechanism 300 cooperates is protected, the other side is equipped with the linkage portion 440 cooperated with operating mechanism.

Optionally, the pushing part 430 of the dropout part 400 and linkage portion 440 are generally aligned in the same plane.

Optionally, the operating mechanism includes the tripping 210 snap-fitted with tripping protection mechanism 300 and is stacked Connecting rod 220 above tripping 210；The stacking of linkage portion 440 of STATEMENT OF FEDERALLY SPONSORED 400 is located at the upper front of connecting rod 220, in tripping 210 are equipped with the linkage board 216 of side and the cooperation of linkage portion 440 that connecting rod 220 is extended to front.

Optionally, the tripping protection mechanism 300 includes bimetal leaf 320, and the fixing end 321 of bimetal leaf 320 is located at Close to one end of handle 100 in shell, and the swinging end 322 of the heated bending of bimetal leaf 320 is located in shell close to movable contact 510 one end, swinging end 322 are connect by flexible connection 535 with movable contact 510.

It optionally, further include the indicator board 422 being connect with STATEMENT OF FEDERALLY SPONSORED 400, the shell of breaker unit is equipped with and instruction The instruction opening 4200 that plate 422 cooperates, the instruction opening 4200 is interior to be equipped with cue mark 421.

It optionally, further include connecting and reaching rapid-releasing portion 420 outside the shell of breaker unit with universal driving shaft 450, Rapid-releasing portion 420 is able to drive universal driving shaft 450 and rotates and trigger the releasing of tripping protection mechanism 300 and behaviour by pushing part 430 Make the snap-fitted of mechanism.

Optionally, the STATEMENT OF FEDERALLY SPONSORED 400 includes the linkage department of assembly 410 being mounted on universal driving shaft 450, in linkage department of assembly 410 one end is equipped with the rapid-releasing portion 420 outside the shell for reaching breaker unit, and the other end is equipped with pushing part 430；It is described fast Fast tripping portion 420 is equipped with indicator board 422；The end of the pushing part 430 is equipped with the promotion cambered surface 433 cooperated with armature 340, The side of pushing part 430 is equipped with the linkage portion 440 cooperated with tripping 210, engraved structure of the linkage portion 440 at V-type, packet The second support bar 442 for including the first support bar 441 connecting with 430 one end of pushing part and being connect with 430 other end of pushing part, First support bar 441 is connect with second support bar 442 at V-shaped.

Optionally, the tripping protection mechanism 300 includes bimetal leaf 320 and the armature snap-fitted with operating mechanism 340, on bimetal leaf 320 be equipped with the spaced pole shoe 330 of armature 340, one end of armature 340 is equipped with and bimetal leaf The elastic slice 311 of 320 one end connection, the other end are equipped with the connection sheet 313 that cooperates with bimetal leaf 320, bimetal leaf when overload 320 are bent and release snap-fitted, the electromagnetism of pole shoe 330 when short-circuit with operating mechanism with moving armature 340 by connection sheet 313 Gravitational attraction armature 340 releases snap-fitted with operating mechanism.

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 cooperated with handle 100, and connect by reset spring 201 with tripping 210.

Optionally, 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 linkage board 216 with the cooperation of linkage portion 440 of STATEMENT OF FEDERALLY SPONSORED 400, Power part 215 is connect by reset spring 201 with connecting rod 220, and linkage board 216 and tripping protection mechanism 300 are located at linkage The two sides of part 400.

The breaker of the invention is connect by universal driving shaft 450 with the STATEMENT OF FEDERALLY SPONSORED 400 of breaker units at different levels, linkage Part 400 is arranged between operating mechanism and tripping protection mechanism 300, when any breaker unit trips, in the breaker unit Operating mechanism push the linkage portion 440 of STATEMENT OF FEDERALLY SPONSORED 400, STATEMENT OF FEDERALLY SPONSORED 400 drives other breaker units by universal driving shaft 450 again In STATEMENT OF FEDERALLY SPONSORED 400 rotate, the STATEMENT OF FEDERALLY SPONSORED 400 in other breaker units triggers other breaker units by pushing part 430 In tripping protection mechanism 300 thread off, to realize the protection of entire electric circuit, compact overall structure is reliable.In addition, this hair It is bright to create 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 STATEMENT OF FEDERALLY SPONSORED 400 Linkage portion 440 be stacked, the difficulty of processing and assembly can not only be reduced, and can design convenient for Automated assembly. In addition, the one end connected to the housing of tripping protection mechanism 300 is located at shell close to one end of handle 100, and bimetal leaf 320 The swinging end 322 of heated bending is located at one end in shell close to movable contact 510, so that connection movable contact 510 and bimetal leaf Flexible connection 535 be located at the downside of breaker, universal driving shaft 450 and STATEMENT OF FEDERALLY SPONSORED 400 can be avoided in this way, so that the entirety of breaker Structure is more compact, is arranged in the same plane convenient for pushing part 430 and linkage portion 440, can not only make the biography of tripping force Difficulty that is more reliable, and reducing processing and assembly is moved, Automated assembly is convenient for.In addition, inter-electrode linkage mechanism also with universal driving shaft The indicator board 422 of 450 connections, breaker unit shell are equipped with the instruction opening 4200 cooperated with indicator board 422, can be very square Just directly observe that electric circuit disconnection is due to normal manual brake separating or due to tripping caused by breaking down.Separately Outside, the rapid-releasing portion 420 outside the shell by reaching breaker unit is able to drive the rotation of universal driving shaft 450 and passes through STATEMENT OF FEDERALLY SPONSORED 400 triggering tripping protection mechanisms 300 and operating mechanism releasing are snap-fitted, can easily survey in production and usually use Can examination breaker normally thread off, and when breaker needs quickly to disconnect electric circuit, it is only necessary to which the strength of very little is stirred Rapid-releasing portion 420 can not need circuit breaker trip to stir handle 100 for breaker open operation with very big strength, and And when circuit breaker trip disconnect electric circuit speed also than separating brake when faster, it is safer.

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 inter-electrode linkage mechanism；

Figure 27 is the cooperation schematic diagram of the invention rapid-releasing part and universal driving shaft；

Figure 28 is a kind of embodiment of the invention rapid-releasing part；

Figure 29 is the right view of the invention Figure 28.

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 unit of the invention includes shell and is arranged in the intracorporal handle of shell 100, operating mechanism and tripping protection mechanism 300, handle 100 are pivoted in shell, and handle 100 is connect with operating mechanism, Movable contact 510 is connect with operating mechanism, and the tripping 210 of operating mechanism and the overlap joint of tripping protection mechanism 300 cooperate, stationary contact 520 It is oppositely arranged with movable contact 510, handle 100 drives movable contact 510 to be contacting and separating with stationary contact 520 by operating mechanism, real The switch closing and switch opening of existing circuit.As shown in Figure 1, handle 100 swings to the closing position (ON) of side, operating mechanism drives dynamic touching Point 510 is contacted with stationary contact 520 makes breaker closing；As shown in figure 5, handle 100 swings to the open position of the other side (OFF), operating mechanism, which drives movable contact 510 to separate with stationary contact 520, makes breaker open operation；As shown in Fig. 2, in breaker closing When, when circuit breaks down, movement is released the bonding relation between tripping 210 by tripping protection mechanism 300 jumps breaker Lock, movable contact 510 are separated with stationary contact 520, and handle 100 swings to the trip position between closing position and open position (TRIP)；As shown in figure 3, handle 100 can not make breaker closing after circuit breaker trip, need that handle 100 is first pushed sub-gate position It sets, to drive tripping 210 and tripping protection mechanism 300, snap-fitted realization is detained again again, then is detained back handle 100 and can be passed through behaviour Making mechanism drives movable contact 510 to swing the switch closing and switch opening for realizing breaker.

When breaker is used for the electric system of three-phase four-wire system, breaker includes multipole breaker list arranged side by side Member, multiple breaker units are arranged side by side and are respectively used to different phase lines, and interpolar is equipped between multiple breaker units and is linked Mechanism, wherein any one-phase circuit breaks down when tripping, the breaker unit tripping being connect with the circuitry phase, and pass through interpolar Linkage mechanism drives other breaker units also to disconnect, and realizes the protection to entire electric circuit.Open circuit as shown in Figure 26-29 The linkage mechanism of device, it is equal in the shell of each breaker unit including the universal driving shaft 450 being connected between multiple breaker units Equipped with STATEMENT OF FEDERALLY SPONSORED 400, the STATEMENT OF FEDERALLY SPONSORED 400 of multipole circuit breaker unit is connected by universal driving shaft 450, and the STATEMENT OF FEDERALLY SPONSORED 400 is located at behaviour Make between mechanism and tripping protection mechanism 300, the promotion cooperated with tripping protection mechanism 300 is equipped in the side of STATEMENT OF FEDERALLY SPONSORED 400 Portion 430, the other side are equipped with the linkage portion 440 cooperated with operating mechanism.The linkage mechanism of the breaker of the invention passes through connection Moving axis 450 is connect with the STATEMENT OF FEDERALLY SPONSORED 400 of breaker units at different levels, and the setting of STATEMENT OF FEDERALLY SPONSORED 400 is in operating mechanism and tripping protection Between mechanism 300, when the tripping of any breaker unit, the operating mechanism in the breaker unit pushes the connection of STATEMENT OF FEDERALLY SPONSORED 400 Dynamic portion 440, STATEMENT OF FEDERALLY SPONSORED 400 drive the STATEMENT OF FEDERALLY SPONSORED 400 in other breaker units to rotate by universal driving shaft 450 again, other open circuits STATEMENT OF FEDERALLY SPONSORED 400 in device unit triggers the tripping of the tripping protection mechanism 300 in other breaker units by pushing part 430, from And realize the protection of entire electric circuit, compact overall structure is reliable.Certainly, universal driving shaft 450 is other than connecting breaker unit, Buckle releaser arranged side by side, including leakage tripping device, long-range buckle releaser, under-voltage over-voltage buckle releaser etc. can also be connected.

Preferably, the pushing part 430 of the STATEMENT OF FEDERALLY SPONSORED 400 and linkage portion 440 are in the same plane, and can make to link Torque on part 400 is transmitted in the same plane, acts STATEMENT OF FEDERALLY SPONSORED 400 at work more rapidly and reliable.

As shown in figure 26, the preferred embodiment that a kind of STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 linkage 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.

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 STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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, in tripping, linkage board 216 can not only push dropout part 400 to drive the circuit breaker tripping of other phases, but also can push the contact arm of connecting rod 220 222 accelerate the speed of tripping, and to improve the breaking capacity of breaker, when closing a floodgate, the needs of linkage board 216 in tripping 210 are kept away Allow connecting rod 220.

Further, the contact arm 222 connect with articulated jib 221 at V-shaped and articulated jib 221 and contact arm 222 it Between the space of linkage board 216 can be avoided when being formed in combined floodgate.Certainly, the articulated jib 221 of connecting rod 220 and contact arm 222 can also To be connected at other shapes, but connected at V-shaped and evacuation when being formed in combined floodgate between articulated jib 221 and contact arm 222 The space of linkage board 216 in tripping 210 can make more compact structure, reduce the space occupied.

As shown in figure 26, another preferred embodiment that a kind of STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 It can reduce the difficulty of processing and assembly, be convenient for Automated assembly.

As illustrated in figures 26-29, the inter-electrode linkage mechanism includes universal driving shaft 450 and connect with universal driving shaft 450 multiple STATEMENT OF FEDERALLY SPONSORED 400 further includes the rapid-releasing portion 420, Yi Jiyu for connecting and reaching with universal driving shaft 450 outside the shell of breaker unit The indicator board 422 that rapid-releasing portion 420 connects, by the rapid-releasing portion 420 for stretching out shell in rotation STATEMENT OF FEDERALLY SPONSORED 400 The triggering movement of armature 340 releasing is snap-fitted with operating mechanism, can easily test in production and usually use disconnected Can road device normally thread off, and when breaker needs quickly to disconnect electric circuit, it is only necessary to which the strength of very little stirs linkage Circuit breaker trip can not needed to stir handle 100 for breaker open operation with very big strength, and breaker by part 400 When tripping disconnect electric circuit speed also than 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 STATEMENT OF FEDERALLY SPONSORED 400 exists The front of tripping 210 and STATEMENT OF FEDERALLY SPONSORED 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, STATEMENT OF FEDERALLY SPONSORED 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 preferred that the other end of armature 340 passes through connection sheet 313 and bimetal leaf 320 cooperations, STATEMENT OF FEDERALLY SPONSORED 400 can push directly on armature 340.Certainly, the other embodiment as tripping protection mechanism 300, Armature 340 also can be set in the left side of connection sheet 313, and STATEMENT OF FEDERALLY SPONSORED 400 can also be passed through by pushing connection sheet 313 It pushes armature 340 to unbutton tripping 210, belongs to the protection scope of the invention.

Specifically, the STATEMENT OF FEDERALLY SPONSORED 400 includes the linkage department of assembly 410 being mounted on universal driving shaft 450, assembled in linkage The one end in portion 410 is equipped with the rapid-releasing portion 420 outside the shell for reaching breaker unit, and the other end is equipped with pushing part 430, is joining The pushing part 430 of moving part 400 is equipped with the linkage portion 440 cooperated with tripping 210 far from the side of tripping protection mechanism 300；Fastly Fast tripping portion 420 is able to drive universal driving shaft 450 and rotates and trigger the releasing of tripping protection mechanism 300 and operation by pushing part 430 Mechanism it is snap-fitted.Shell is equipped with instruction opening 4200, is equipped with sliding slot 4201, rapid-releasing portion in instruction opening 4200 420, which pass through sliding slot 4201, reaches in instruction opening 4200.Further, the bottom of the instruction opening 4200 is the one of sliding slot 4201 Side is equipped with cue mark 421, and rapid-releasing portion 420 is equipped with the indicator board 422 for blocking cue mark 421, STATEMENT OF FEDERALLY SPONSORED 400 It is against the left side of armature 340, when the normal separating brake of breaker, armature 340 is due to that will not unbutton so STATEMENT OF FEDERALLY SPONSORED 400 also would not It is mobile, and cue mark 421 (Figure 24) is blocked by indicator board 422, due to that can not observe cue mark 421, then observer It is recognized that electric circuit, there is no failure, breaker is to disconnect electric circuit by normal separating brake, when breaker is jumped When lock, armature 340 can not be resetted due to that can be against the right side of tripping 210 after unbuttoning, after indicator board 422 is acted with armature 340 Because of gravity (in actual use, downward, left side is upward on the right side of breaker in figure for breaker) or blocking structure set in addition Also it can not reset, so that indicator board 422 is exposed cue mark 421 (Figure 25) and then observed due to that can observe cue mark 421 Person is recognized that failure has occurred in electric circuit, and breaker is to disconnect electric circuit by tripping, directly passes through indicateing arm Note 421 is very convenient it may determine that the reason of electric circuit disconnects out.STATEMENT OF FEDERALLY SPONSORED 400 in above embodiment is to pivot It is mounted on the intracorporal lever construction of shell, certainly, STATEMENT OF FEDERALLY SPONSORED 400 can also use straight-bar structure, push directly on or pull armature 340 With 210 rapid-releasing of tripping, the protection scope of the invention is belonged to.

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, STATEMENT OF FEDERALLY SPONSORED 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.

Further, the hole that is connected for connecting universal driving shaft 450 is equipped in the linkage department of assembly 410 of STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 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 STATEMENT OF FEDERALLY SPONSORED 400 and connecting rod 220, especially be jumped when multipole circuit breaker unit links Button 210 will hit the tripping protection mechanism 300 in multipole circuit breaker unit by universal driving shaft 450 simultaneously, have it is compact-sized, make With the feature that the service life is long.In addition, the shock of linkage board 216 connecting rod 220 can also make breaker rapid-releasing in tripping 210.

As shown in figure 27,430 l-shaped of pushing part comprising setting is between linkage 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 fast linked part 400 by the pushing part 430 that l-shaped is arranged, and intensity is also higher.

Further, the linkage department of assembly 410 is respectively equipped with and is joined on two opposite side walls of shell at cylindrical body The supporting table 412 (Fig. 7) of the front and back cooperation of dynamic department of assembly 410, supporting table 412 is at tubular, in linkage 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 linkage dress It is equipped with the hole 411 that is connected for connecting universal driving shaft 450 with portion 410, linkage department of assembly 410 can by supporting table 412 With shell reliable fit, guarantee stability when STATEMENT OF FEDERALLY SPONSORED 400 works.

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 pulls tripping 210 to rotate, and the power part 215 of tripping 210 makes connecting rod 220 drive movable contact 510 and stationary contact Point 520 is separated to realize tripping and go to trip position (Fig. 2) with fixed handle 100.After tripping, handle 100 is gone into sub-gate position It sets, handle 100 drives the rotation of tripping 210 to make hasp portion 213 and tripping protection mechanism 300 again by the power part 215 of tripping 210 Secondary formation 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 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, operation machine as shown in figs. 1-7, in the shell of the breaker unit of the invention Structure, tripping protection mechanism 300 and two connecting terminals 530；Operating mechanism includes connecting rod 220 and tripping 210, connecting rod 220 and is jumped Button 210 is stacked, and the upper front of tripping 210, the left end of tripping 210 and housing hinge, middle part is arranged in connecting rod 220 Equipped with the power part 215 cooperated with handle 100, right end is equipped with the hasp portion 213 with the overlap joint cooperation of tripping protection mechanism 300, jumps The power part 215 of button 210 extends to 100 lower section of handle to front and the power arm 130 of handle 100 cooperates；The top of connecting rod 220 Hinged with handle 100, bottom end is connect by reset spring 201 with tripping 210, and handle 100 goes to closing position and open position When, drive link 220 is mobile, connect in the bottom end of connecting rod 220 with movable contact 510, and the setting of tripping protection mechanism 300 is in operation machine The right side of structure and the overlap joint of tripping 210 cooperate, and are equipped with a connecting terminal 530, the terminals on the right side of tripping protection mechanism 300 Son 530 is connect with movable contact 510, is equipped with another connecting terminal 530 in the lower left of shell and is connect with the connecting terminal 530 Static contact 521, static contact 521 be equipped with stationary contact 520, connecting terminal 530 be also possible to socket cooperate inserting foot.

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, preferably electrical pure iron, and pole shoe 330 can attract armature in short circuit 340 overcome the effect of elastic slice 311 mobile to the right side far from tripping 210, when being more than certain displacement, release armature 340 It is snap-fitted with tripping 210, to realize short-circuit protection, have the characteristics that structure is simple, does not need traditional electromagnetic system and pass through Coil adsorbs dynamic iron core, then the structure of operating mechanism tripping is driven by moving iron core.

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 being 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 unit, Supporting element 350 is fixedly connected with elastic slice 311.The inserting groove 3500 mating with supporting element 350 is equipped on the side wall of shell, It can be formed a fixed connection respectively by welding between elastic slice 311, bimetal leaf 320 and supporting element 350, naturally it is also possible to pass through Other way connection, elastic slice 311, bimetal leaf 320 and supporting element 350 not only can after assembled in advance is integrated outside shell, It is whole again that tripping protection mechanism 300 is packed into shell, and the tripping protection mechanism 300 of one is passing through 350 grafting of supporting element In inserting groove 3500 on to shell, the difficulty of assembly is also lower, the Automation Design convenient for assembly, meets automated production Development trend.

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 STATEMENT OF FEDERALLY SPONSORED 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.

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 pole shoe 330 can not only pass through the surface of increase bimetal leaf 320 at U-shaped, U-shaped pole shoe Product can enhance the electromagnetic attraction of pole shoe 330 to increase calorific value, have the characteristics that compact-sized.

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, The linkage board 216 cooperated with STATEMENT OF FEDERALLY SPONSORED 400 is additionally provided on the one end in hasp portion 213 in linking arm 212.In linking arm 212 Left side be equipped with tripping slot 214, right side is equipped with the linkage board 216 that cooperate with STATEMENT OF FEDERALLY SPONSORED 400, equipped with to front in tripping slot 214 The power part 215 of the lower section of handle 100 is extended to, the right side of power part 215 and handle 100 cooperate, the left side of power part 215 and multiple One end connection of position spring 201, the other end of reset spring 201 connect with the bottom end that the positive connecting rod 220 of tripping 210 is arranged in It connects.

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 of the application to handle 100 at this time, is made tripping 210 in reset spring 201 It drives on the 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, and makes to form safety again between the hasp portion 213 of tripping 210 and the hasp face of tripping protection mechanism 300 Detain distance L, can guarantee tripping 210 hasp portion 213 can smoothly with tripping protection mechanism 300 in rotary course hasp On surface fastener, the reliability of breaker is improved.

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 passes through blocking Power arm 130 contact motion arm 120 can not with handle openings 1200, and the shape between motion arm 120 and handle openings 1200 At prepared separation distance S.It is equipped with and motion arm specifically, handle openings 1200 are corresponding in the side of the closing position of handle 100 120 bearing surfaces 1201 being engaged, and the other side of the corresponding open position in handle 100 is equipped between motion arm 120 Every the evacuation face 1202 of setting, bearing surface 1201 and evacuation face 1202 are at V-type, the inside of bearing surface 1201 and evacuation face 1202 Be respectively equipped with pivot block 110 cooperate cambered surface, outside be respectively equipped with motion arm 120 cooperate inclined-plane, the two of pivot block 110 Side is equipped with the shading arm 140 with bearing surface 1201 and the cooperation of evacuation 1202 inside edge of face respectively, intracorporal closed to improve shell Property.

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.

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, not only has the characteristics of easy to assembly, to be convenient for Automated assembly, and connecting rod 220 and handle 100 can also be installed It is co-mounted in breaker again after being integrated.Specifically, the handle 100 includes being pivoted on the intracorporal pivot block of shell 110, and it is separately positioned on the motion arm 120 and power arm 130 at 110 both ends of pivot block, power arm 130 is dynamic with tripping 210 Power portion 215 cooperates, and 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 is stretched Into hinge recess 111, articulated shaft 226 passes through the side wall of hinge recess 111 and articulated jib 221 cuts with scissors handle 100 and connecting rod 220 It connects.

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.

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 (10)

1. a kind of breaker, it is characterised in that：Including the breaker unit that multipole is arranged side by side, and it is connected to multiple breakers Universal driving shaft (450) between unit, breaker unit include handle (100), movable contact (510), stationary contact, setting in shell The operating mechanism that drives movable contact (510) and stationary contact to be contacting and separating, tripping protection mechanism (300) and with universal driving shaft (450) The STATEMENT OF FEDERALLY SPONSORED (400) of connection, the STATEMENT OF FEDERALLY SPONSORED (400) is located between operating mechanism and tripping protection mechanism (300), in STATEMENT OF FEDERALLY SPONSORED (400) side is equipped with the pushing part (430) cooperated with tripping protection mechanism (300), and the other side is equipped with to be cooperated with operating mechanism Linkage portion (440).

2. breaker according to claim 1, it is characterised in that：The pushing part (430) of the dropout part (400) and linkage Portion (440) is generally aligned in the same plane.

3. breaker according to claim 1 or 2, it is characterised in that：The operating mechanism includes and tripping protection mechanism (300) snap-fitted tripping (210) and the connecting rod (220) being stacked above tripping (210)；STATEMENT OF FEDERALLY SPONSORED (400) Linkage portion (440) stacking is located at the upper front of connecting rod (220), is equipped on tripping (210) to front and extends to connecting rod (220) Side and linkage portion (440) cooperation linkage board (216).

4. breaker according to claim 1 or 2, it is characterised in that：The tripping protection mechanism (300) includes bimetallic Piece (320), the fixing end (321) of bimetal leaf (320) are located at one end in shell close to handle (100), and bimetal leaf (320) swinging end (322) bent that is heated is located at one end in shell close to movable contact (510), and swinging end (322) passes through soft Knot (535) is connect with movable contact (510).

5. breaker according to claim 1, it is characterised in that：It further include the indicator board being connect with STATEMENT OF FEDERALLY SPONSORED (400) (422), the shell of breaker unit is equipped with the instruction opening (4200) cooperated with indicator board (422), the instruction opening (4200) cue mark (421) are equipped in.

6. breaker according to claim 1, it is characterised in that：It further include being connect with universal driving shaft (450) and reaching open circuit Rapid-releasing portion (420) outside the shell of device unit, rapid-releasing portion (420) are able to drive universal driving shaft (450) and rotate and pass through Pushing part (430) triggering tripping protection mechanism (300) releases snap-fitted with operating mechanism.

7. breaker according to claim 1, it is characterised in that：The STATEMENT OF FEDERALLY SPONSORED (400) includes being mounted on universal driving shaft (450) the linkage department of assembly (410) on is equipped with outside the shell for reaching breaker unit in one end of linkage department of assembly (410) Rapid-releasing portion (420), the other end are equipped with pushing part (430)；The rapid-releasing portion (420) is equipped with indicator board (422)；Institute The end for stating pushing part (430) is equipped with the promotion cambered surface (433) that cooperate with armature (340), the side of pushing part (430) equipped with Tripping (210) cooperation linkage portion (440), the linkage portion (440) at V-type engraved structure comprising with pushing part (430) The first support bar (441) of one end connection and the second support bar (442) being connect with pushing part (430) other end, first Strut (441) is connect with second support bar (442) at V-shaped.

8. breaker according to claim 4, it is characterised in that：The tripping protection mechanism (300) includes bimetal leaf (320) snap-fitted armature (340) and with operating mechanism are equipped on bimetal leaf (320) and are spaced setting with armature (340) Pole shoe (330), one end of armature (340) is equipped with the elastic slice (311) connecting with one end of bimetal leaf (320), and the other end is set There is the connection sheet (313) with bimetal leaf (320) cooperation, bimetal leaf (320) is bent and passes through connection sheet (313) band when overload Moving armature (340) releases snap-fitted with operating mechanism, electromagnetic attracting force armature (340) releasing of pole shoe (330) when short-circuit It is snap-fitted with operating mechanism.

9. breaker according to claim 3, 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 by reset spring (201) with tripping (210).

10. breaker according to claim 9, it is characterised in that：The tripping (210) is at U-shaped comprising with shell Hinged pivotal arm (211) and tripping protection mechanism (300) snap-fitted hasp portion (213), and it is connected to pivotal arm (211) linking arm (212) between hasp portion (213) is equipped with the power cooperated with handle (100) on linking arm (212) Portion (215), and the linkage board (216) with linkage portion (440) cooperation of STATEMENT OF FEDERALLY SPONSORED (400), power part (215) is by resetting bullet Spring (201) is connect with connecting rod (220), and linkage board (216) and tripping protection mechanism (300) are located at the two of STATEMENT OF FEDERALLY SPONSORED (400) Side.