CN207834234U - A kind of breaker with magnetic release - Google Patents

Abstract

A kind of breaker with magnetic release, breaker include main casing and main loop unit, operating mechanism and actuating lever, and magnetic release, feature are set in main loop unit：Magnetic release includes mounting bracket；Yoke is fixed in mounting bracket；Armature, armature can be slided up and down in mounting bracket, and have gap between yoke；Reaction spring denounces the counter-force opened for being provided for armature away from yoke direction；Commutate striking structure, including rotating bar and strike bar that is hinged with rotating bar and being located in mounting bracket, rotating bar is connect with armature, when armature and yoke are attracted, armature drives rotating bar to overcome reaction spring effect rotation, and strike bar is actuated by rotating bar and hits actuating lever, and then drive actuating lever transverse shifting and activate the operating mechanism action, make circuit breaker tripping.Be conducive to the miniaturization of breaker, magnetic gap easily adjusts, and ensures that the reliability of setting current action, versatility are good.

Description

A kind of breaker with magnetic release

Technical field

The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of breaker with magnetic release.

Background technology

Breaker is as the overloading of low-voltage distribution system and motor protection circuit, under-voltage, short-circuit protective device, in circuit When there is overcurrent, the trip unit of breaker generates trip action to cut off circuit, to protect the load in circuit system Equipment and all parts are injury-free.The electromagnetic release mechanism of breaker is used for when high current occurs in circuit, and armature movement is inhaled The tripping mechanism that breaker is pushed while conjunction, makes circuit breaker tripping and achievees the purpose that protection circuit.

Magnetic release is a most key action executive component in breaker, as Chinese utility model patent mandate is public One kind " calutron of breaker of plastic casing " disclosed in announcement CN 205789813U, wherein magnetic release by holder, armature, Magnetic is gripped, spring assembly forms, and there is armature rotation axis, top to be connected with the tripping mechanism that can make circuit breaker tripping, work as circuit In when having Short-Circuit High Current generation, generate magnetic field in yoke, when magnetic field is greater than the set value, armature lower end overcomes acting force of the spring Constraint and be attracted direction to yoke around rotation axis and rotate, push breaker tripping mechanism to make breaker point by the upper end of armature Lock, to cut off the power.The structure occupied space of above-mentioned magnetictrip is big, is unfavorable for the miniaturization of breaker.

Invention content

The task of the utility model is to provide for a kind of breaker with magnetic release, simple in structure and space hold It is less, be conducive to the miniaturization of magnetic release and the breaker with magnetic release.

What the task of the utility model was performed by, a kind of breaker with magnetic release, the breaker Transverse direction including main casing and the main loop unit being disposed longitudinally in main casing, operating mechanism and actuating operating mechanism action is flat The actuating lever of setting is moved, the main loop unit is equipped with magnetic release, and the magnetic release includes：

The mounting bracket of one fixed setting；

One yoke is fixedly mounted in the mounting bracket；

One armature, the armature can be slided up and down in mounting bracket, and be had between the yoke between electromagnetism actuation Gap；

One reaction spring denounces the counter-force opened for being provided for armature away from yoke direction；

One commutation striking structure, the commutation striking structure include a rotating bar being rotatably arranged in mounting bracket with One is hinged and is slidably arranged in the strike bar in mounting bracket with rotating bar, and when armature and yoke are attracted, armature drives rotating bar Overcome reaction spring effect rotation, and by rotating bar actuate strike bar hit actuating lever, and then drive actuating lever transverse shifting and The actuating operating mechanism action, makes circuit breaker tripping.

In a specific embodiment of the utility model, the rotating bar is hinged in mounting bracket, one end is prolonged The auxiliary section that the linkage portion of stretching is connect with armature, the other end extends and strike bar are hinged, and armature slides up and down, and drives linkage Portion rotates, and drives rotating bar that the effect of reaction spring is overcome to rotate as linkage portion rotates, and drive strike bar to move by auxiliary section Make.

In another specific embodiment of the utility model, it is described strike bar one end be laterally extended be formed with one with The beating part of actuating lever cooperation, middle part laterally have kidney slot；The mounting bracket is equipped with limit round table, limit circle Platform is arranged in kidney slot, enables strike bar left and right transverse shifting in mounting bracket.

In another specific embodiment of the utility model, adjustment portion and reaction spring that the rotating bar is extended Connection, the magnetic release further include that a reaction spring being rotatably arranged in mounting bracket adjusts push rod, the counter-force The adjustment portion of one end connection rotating bar of spring, other end connection reaction spring adjust push rod.

In another specific embodiment of the utility model, the adjustment portion and reaction spring are adjusted on push rod all The regulating tank for adjusting reaction spring elastic force is offered, the elastic force of reaction spring is adjusted.

In the utility model there are one in specific embodiment, the breaker further includes dropout push rod, described One end of dropout push rod coordinated by the actuation part for pushing away end and actuating lever, other end output end and operating mechanism coordinate, and work as strike When bar pushes actuating lever transverse translation, actuating lever driving dropout push rod is pushed away end, drives the rotation of dropout push rod, dropout push rod Output end activates operating mechanism action.

In a specific embodiment in turn of the utility model, the operating mechanism includes tripping force enlarger Structure, the dropout force amplificatory structure are the output power apparatus for amplifying magnetic release, when strike bar pushes actuating lever transverse translation When, actuating lever driving dropout push rod is pushed away end, drives the rotation of dropout push rod, the output end actuation trip power amplification of dropout push rod Mechanism action, dropout force amplificatory structure activate operating mechanism action, to activate circuit breaker tripping, cut off circuit.

In the utility model more and in a specific embodiment, the breaker further includes adjusting magnetic release Magnetically condition knob assembly and magnetically condition bar, the magnetically condition bar slide fit is on operating mechanism, and one end is pushed away with reaction spring adjusting Bar is against the other end is engaged with magnetically condition knob assembly.

In the utility model again and then in a specific embodiment, the magnetically condition bar connects with knob regulating device The one end connect is equipped with dentation engaging section, and the dentation engaging section is engaged with magnetically condition knob assembly.

The utility model and then in a specific embodiment, the breaker further includes retainer, in magnetic The rotation of adjusting knob component drives magnetically condition bar transverse shifting to adjust the current calibration that the breaker is set by dentation engaging section It is meshed with retainer when value, for limiting the rotation of magnetically condition knob assembly.

The utility model changes the direction of motion of armature by the striking structure that commutates, and actuates strike bar in cross by rotating bar To strike breaker actuating lever, and then actuating lever pull circuit breaker tripping, solve existing low-voltage circuit breaker magnetic release because The defects of Reliability of Microprocessor is poor, functions expanding is insufficient caused by being unfavorable for taking technical measures is limited by space, is more advantageous to The Miniaturization Design of breaker, and magnetic gap is also easy to adjust ensure that the reliability and preferably of setting current action Versatility.

Description of the drawings

Fig. 1 shows the breaker overall structure diagram of the utility model.

Fig. 2 shows the breaker overall structure explosion schematic diagrames of the utility model.

Fig. 3 shows the structural schematic diagram of the breaker removal head cover of the utility model.

Fig. 4 shows the internal structure schematic diagram of the breaker of the utility model.

Fig. 5 shows the assembling schematic diagram of actuating lever and magnetically condition bar in the breaker of the utility model.

Fig. 6 shows the cooperation schematic diagram of actuating lever and magnetically condition bar in the breaker of the utility model.

Fig. 7 shows the structural schematic diagram of actuating lever in the breaker of the utility model.

Fig. 8 shows the structural schematic diagram of magnetic release in the breaker of the utility model.

Fig. 9 shows the structural schematic diagram of the magnetic release other side in the breaker of the utility model.

Figure 10 shows the structural schematic diagram of rotating bar in the magnetic release of the utility model.

Figure 11 shows to hit the structural schematic diagram of bar in the magnetic release of the utility model.

Figure 12 shows the structural schematic diagram of mounting bracket in the magnetic release of the utility model.

Figure 13 shows the structural schematic diagram of the thermal trip of the utility model.

Figure 14 shows the structural schematic diagram of bimetal leaf and L bracket in the thermal trip of the utility model.

Figure 15 shows the structural schematic diagram of galvanic circle busbar in the thermal trip of the utility model.

Figure 16 shows the fever of galvanic circle busbar and face terminals in the main loop unit of the breaker of the utility model The assembling schematic diagram of element.

Figure 17 shows the assembly signal of pyromagnetic regulating device and dropout force amplificatory structure in the breaker of the utility model Figure.

Figure 18 shows dropout force amplificatory structure overall structure diagram in the utility model.

Figure 19 shows dropout force amplificatory structure explosion schematic diagram in the utility model.

Figure 20 shows dropout force amplificatory structure overall structure diagram in reset state in the utility model.

Figure 21 shows to reset the position view of push rod and shaft in the utility model in breaker closing state.

Figure 22 shows to reset the position view of push rod and shaft in the utility model in breaker open operation state.

Figure 23 show in the utility model to reset when enlarger has just unlocked breaker also in "on" position push rod with The position view of shaft.

Figure 24 shows that dropout force amplificatory structure tripping push rod in release is illustrated with tripping cross bar position in the utility model Figure.

Figure 25 shows in the utility model that dropout force amplificatory structure trips push rod and tripping cross bar position in reset state Schematic diagram.

Figure 26 shows the overall structure diagram of enlarger in the utility model.

Figure 27 shows the overall structure stereogram exploded view of enlarger in the utility model.

Figure 28 shows enlarger structural schematic diagram in reset state in the utility model.

Figure 29 shows structural schematic diagram of enlarger during release in the utility model.

Figure 30 shows enlarger structural schematic diagram in release conditions in the utility model.

Figure 31 shows to hit bar and semi-axis structure schematic diagram in the utility model.

Figure 32 shows semi-axis structure schematic diagram in the utility model.

Figure 33 shows pyromagnetic regulating device and magnetic release structural schematic diagram in the utility model.

Figure 34 shows the structural schematic diagram of knob regulating device in the utility model.

Figure 35 shows the structural schematic diagram of knob mounting bracket in the utility model.

Figure 36 shows the structural schematic diagram of adjusting knob in the utility model.

Figure 37 shows the structural schematic diagram of turning knob in the utility model.

Figure 38 shows magnetically condition knob assembly and retainer cooperation schematic diagram in the utility model.

Figure 39 shows magnetically condition knob assembly and retainer engaging structure schematic diagram in the utility model.

Figure 40 shows knob assembly and retainer detaching structure schematic diagram in the utility model.

Figure 41 shows pyromagnetic regulating device structural schematic diagram in the utility model.

Figure 42 shows thermal conditioning knob assembly and thermal trip structural schematic diagram in the utility model.

Figure 43 shows that thermal conditioning knob assembly in the utility model, thermal trip, dropout push rod, actuating lever and tripping force are put Great institutions structural schematic diagram.

Figure 44 shows thermal conditioning knob assembly in the utility model, thermal trip, dropout push rod, actuating lever structural representation Figure.

Figure 45 shows dropout push rod in the utility model, thermal conditioning knob assembly, regulating mechanism position view.

Figure 46 shows dropout push rod in the utility model, thermal conditioning knob assembly, regulating mechanism position view.

Figure 47 shows the thermal conditioning principle signal of dropout push rod in the utility model, thermal conditioning knob assembly, regulating mechanism Figure.

Figure 48 shows the structural schematic diagram of connecting rod in the utility model.

Figure 49 shows the structural schematic diagram of connecting rod in the utility model, pedestal, holder.

Figure 50 shows the structural schematic diagram of connecting rod and holder in the utility model.

In figure：1. operating mechanism, 11. elbow-bar mechanisms, 111. upper connecting rods, 112. lower links, 113. main springs, 12. trippings, 13. operating lever, 131. handles, 14. assembling frames, 141. side plates, 142. actuating lever holders, 1421. axis holes, 1422. openings Slot, 143.U connected in stars, 144. cavitys, 15. latching devices, 151. locks, 152. intermediate door locks, 153. release levers, 16. actuatings Bar, 161. axle journals, 1611. card slots, 162. actuation parts, 163. touch parts, 1631. magnetic release touch parts, 1632. thermal trips Touch part；2. static contact, 21. power supply side terminals；3. moving contact component；4. shaft, 41. axle portions, 42. moving contact receiving portions, 43. Bearing plate；5. arc-control device；6. overcurrent detecting device, 61. magnetic releases, 611. mounting brackets, 6111. mounting grooves, 6112. Limit round table, 612. yokes, 613. armature, 6131. connecting shafts, 614. reaction springs, 615. commutation striking structures, 6151. turns Lever, 61511. linkage portions, 61512. auxiliary sections, 61513. adjustment portions, 6152. strike bars, 61521. beating parts, 61522. waists Shape slot, 616. reaction springs adjust push rod, 62. thermal trips, 621. bimetal leafs, 6211. free ends, 622.L shapes holder, 6221. fulcrums, 6222. slotted eyes, 623. galvanic circle busbares, 6231. circular holes, 6232. threaded holes, 624. heater elements； 7. pyromagnetic regulating device, 71. magnetically condition bars, 711. dentation engaging sections, 72. dropout push rods, 721. hinge holes, 722. open slots, 723. are pushed away end, 724. output ends, 73. knob regulating devices, 731. knob mounting brackets, 7311. interconnecting pieces, 73111. first Mounting hole, 73112. first mounting grooves, 73113. second mounting holes, 73114. second mounting grooves, 7312. first position blocks, 73121. mounting grooves, 7313. second position blocks, 732. magnetically condition knob assemblies, 7321. adjusting knobs, 73211. first rotations Button axle journal, 732111. sections, 73212. clicking sections, 732121. holding sections, 732122. indicators, 732123. shifting parts, 73213. cruciform grooves, 7322. turning knobs, 73221. cross boss, 73222. second knob axle journals, 73223. thirds Knob axle journal, 7323. elastic components, 7324. holding sections, 733. thermal conditioning knob assemblies, 7331. spiral line grooves, 734. stop Part, 7341. convex rafter retainers, 74. regulating mechanisms, 741. connecting rods, 7411. clamping portions, 7412. pillars, 7413. spacing block sets； 8. dropout enlarger, 81. enlargers, 811. holders, 8111. stent cavities, 8112. pilot holes, wall body on 8113., 81131. mounting holes, 81132. guide grooves, 8114. lower walls, 81141. matching holes, 8115. cover boards, 81151. spring bases, 811511. spring accommodating chambers, 8116. limiting slots, 812. strike bars, 8121. heads, 8122. first steps, 8123. second Rank, 8124. spring cavitys, 813. semiaxis, 8131. first axle journals, 8132. second axle journals, 8133. third axle journals, 8134. millings are flat Face, 814. cantilevers, 8141. actuators, 815. torsional springs, 816. springs, 82. tripping push rods, 821. contradict ends, 822. actuating ends, 83. resetting push rod, 831. first reset arms, 832. actuator arms, 833. second reset arms, 84. resetting springs, 85. pressing plates, 86. Trip bolt；9. load side terminal；100. lower case, 101. interpolar next doors, 1011. axle portion slots, 102. wall bodies, 1021. axis Hold slot；200. intermediate caps, 201. recess portions；300. top cover portion；400. pedestals, 401. first vessels, 402. second vessels, 403. Guide groove.

Specific implementation mode

Applicant will below be described in detail specific embodiment of the present utility model in conjunction with attached drawing, but applicant is to reality The description for applying example is not the limitation to technical solution, and any changed in the form rather than substance according to the utility model design is all answered When being considered as the scope of protection of the utility model.

The concept of every directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description For the location of current Fig. 1 states, thus it cannot be understood as to technical solution provided by the utility model Be particularly limited to.

The utility model, as shown in Figs. 1-3, breaker include insulation shell, which is divided into triad knot Structure specifically forms for lower base and on central portion and is installed on aforementioned lower base by the recess portion that next door divides The top cover portion of the upper surface of intermediate cap above, the intermediate cap of covering, the insulation shell will be assembled on this basis by being formed Each functional component distributes and is equipped on the package assembly of lower case and intermediate cap as described below.

Receiving includes static contact, shaft, faces and be maintained in shaft with static contact in the lower base of insulation shell Moving contact, arc-control device and overcurrent detecting device, the interior receiving of intermediate cap is by operating lever, elbow-bar mechanism and its jump Operating mechanism, dropout force amplificatory structure and the regulating mechanism of the component composition of button, latching device, the intermediate cap isolated operation machine Between structure and the main loop unit being contained in lower base, arc-control device, moreover, penetrating through the bottom next door of intermediate cap and making The toggle link of operating mechanism is connected to the shaft for the moving contact for being contained in lower base.

The breaker can be three-pole breaker, can also be four-pole circuit breaker, the present embodiment is with three-pole breaker For, it shows to constitute triad knot by lower case 100 and intermediate cap 200 and top cover portion 300 in as shown in Figure 1 to 4 The main body shell of structure, 1 is operating mechanism, and 2 are formed as one in the static contact of power supply side terminal 21, and 3 be to be faced with static contact 2 Moving contact component, 4 is swingably keep the revolving shaft of moving contact component 3, and 5 be arc-control device, and 6 examine for overcurrent Device is surveyed, 7 be pyromagnetic regulating device, and 8 be dropout force amplificatory structure, and 9 be load side terminal.The static contact 2, moving contact group Part 3, shaft 4, arc-control device 5 and overcurrent detecting device 6 accommodate and are arranged in the bottom of lower case 100；The power supply Side terminal 21, static contact 2, moving contact component 3 and load side terminal 9 constitute the main loop unit of breaker；Operating mechanism 1 with set It is placed in the aforementioned main loop unit of lower case 100, arc-control device 5 is isolated and configures recess portion in the center of intermediate cap 200 In 201.

In addition, in the lower case 100 of aforementioned body shell, as shown in Fig. 2, along lower part between mains side and load-side The inner space of shell 100 is divided into longitudinally disposed three left and right and central pole side by side by interpolar next door 101 Room is provided with corresponding main loop unit (three-phase) in each pole room, and here longitudinally disposed refers to the length of lower case 100 Power supply side terminal 21 is directed toward the direction of load side terminal 9 in direction namely Fig. 4, and following lateral settings refers to and longitudinally sets Vertical direction is set, in Fig. 4 perpendicular to the direction of paper namely three main loop units direction arranged side by side.Per aforementioned in extremely Static contact 2, the moving contact component 3 being maintained in revolving shaft 4, arc-control device 5, static contact 2, go out at moving contact component 3 5 set-up mode of arc device belongs to known technology, and the understanding of those skilled in the art will not be given to generate puzzlement, thus at this In repeat no more.

Here, the setting about the structure of aforementioned rotation axis 4 and in lower case 100 has been awarded in Chinese utility model patent It is described in detail in power notification number CN202977332U.That is, as shown in Fig. 2, shaft 4 is formed as connecting by axle portion 41 Structure corresponding to each pole between the moving contact receiving portion 42 of the receiving moving contact component 3 of left and right side by side, the shaft 4 is by such as Under type is assembled in lower case 100.101 notch of interpolar next door of lower case 100 shown in Fig. 2 is formed to be turned for embedded The axle portion slot 1011 of the U-shaped of the axle portion 41 of axis 4 will have Fig. 2 on the basis of carrying shaft 4 across the axle portion slot 1011 The insertion of bearing plate 43 of shown shape is arranged in the bearing groove 1021 of the wall body 102 of aforementioned lower case 100, so as to freedom Rotatably keep shaft 4.

Shown in Fig. 2~Fig. 5, the central portion of intermediate cap 200 be formed with divided as described above by next door it is recessed The operating mechanism 1 above-mentioned for forming package assembly is arranged in portion 201 on the recess portion 201；Operating mechanism 1 include elbow-bar mechanism 11, Tripping 12, operating lever 13, assembling frame 14, main spring 113 and latching device 15.Frame 14 is assembled by symmetrical and solid Surely the both side plate 141 being arranged is constituted；The setting that the operating lever 13 rotates is used on assembling frame 14, and with handle 131 In peripheral operation；Tripping 12 is rotatably arranged on frame 14；Elbow-bar mechanism 11 includes upper connecting rod 111 and lower link 112, upper connecting rod 111 one end and one end of lower link 112 are rotatablely connected by connecting pin, and the other end and the rotation of tripping 12 of upper connecting rod 111 connect It connects, the other end and the shaft 4 of lower link 112 are rotatablely connected；113 draw frame of main spring is set to upper connecting rod 111 and lower link 112 Between connecting pin (wrist pin) and operating lever 13.As shown in figure 4, the operating mechanism 1 is set to intermediate cap 200 and is installed Under the assembled state on the top of lower case 100, aforementioned lower link 112 is by being arranged in the bottom next door of intermediate cap 200 It is connected in shaft 4；Latching device 15 and 12 snap-fit of tripping, latching device 15 include the lock 151 engaged with tripping 12, The intermediate door lock 152 engaged with lock 151 and the release lever 153 engaged with intermediate door lock 152, the release lever 153 rotation are released Intermediate door lock 152 is put, intermediate door lock 152 rotates releasable catch 1511, releases the engaging of tripping 12 and lock 151.Above-mentioned behaviour Make mechanism 1 and belong to known technology, when operating mechanism 1 is in "on" position, by driving release lever 153 to make intermediate door lock 152 Rotation releases the engaging of tripping 12 and lock 1511, discharges tripping 12, can make 1 trip action of operating mechanism.This patent In, the component of 1 trip action of operating mechanism will be made to be referred to as the action component of operating mechanism 1, such as latching device 15.Preferred In embodiment, if the tripping force that driving operating mechanism 1 is threaded off requires the work that bigger or overcurrent detecting device 6 exports Firmly smaller to be difficult in the case of driving latching device 15 to act, operating mechanism 1 can also have dropout force amplificatory structure 8, use To amplify the power output from overcurrent detecting device 6 so that power output be relatively easy to driving latching device 15 so that Operating mechanism 1 is smoothly threaded off, and in such an embodiment, dropout force amplificatory structure 8 is also referred to as the action component of operating mechanism 1.

With continued reference to Fig. 2~Fig. 5, the breaker further includes activating the transverse translation that operating mechanism 1 acts to be arranged Actuating lever 16, specifically, as shown in figure 5, and in conjunction with Fig. 6, actuating lever holder is connected with respectively in the end of the both side plate 141 142,16 transverse translation of the actuating lever is arranged in intermediate cap 200, and slide fit is on actuating lever holder 142, and excessively electric Flow detection device 6 and operating mechanism 1 realize functional connection.Preferably, axis hole is offered on the actuating lever holder 142 1421 and the open slot 1422 that is connected with axis hole 1421, and the opening width of open slot 1422 is less than the diameter of axis hole 1421, The card slot 1611 for facilitating and axle journal 161 being packed into axis hole 1421 is offered on the axle journal 161 of actuating lever 16, depth meets remaining wide Opening width of the degree less than open slot 1422.As shown in fig. 7, and combine Fig. 6, actuation part 162 and extremely is provided in actuating lever 16 A few touch part 163, the touch part 163 coordinate with overcurrent detecting device 6.When overcurrent detecting device 6 detects exception Electric current, overcurrent detecting device 6 activate touch part 163, drive 16 transverse translation of actuating lever, the actuation part 162 in actuating lever 16 It activates operating mechanism 1 to act, to activate circuit breaker tripping, cuts off circuit.

The present embodiment is by taking operating mechanism 1 has dropout force amplificatory structure 8 as an example, it is shown in fig. 2, in intermediate cap 200 It is interior, and the right side vessel of the recess portion 201 across setting operating mechanism 1 is provided with pedestal 400, and cross is offered in the pedestal 400 simultaneously The first vessel 401 and the second vessel 402 of row.In the present embodiment, as shown in figure 17, pyromagnetic regulating device 7 and tripping force are put Great institutions 8 are arranged in pedestal 400.The dropout force amplificatory structure 8 was made in the power output hour of overcurrent detecting device 6 The increased device of power output, when detecting abnormal current by 6 action actuation actuating lever 16 of overcurrent detecting device, actuating lever 16 causes Dynamic dropout force amplificatory structure 8 acts, and dropout force amplificatory structure 8 activates operating mechanism 1 and acts, and to activate circuit breaker tripping, cuts Deenergizing.Certainly in another embodiment, when the power output of overcurrent detecting device 6 is sufficiently large, can need not also pacify Removable button force amplificatory structure 8 acts directly actuating operating mechanism 1, latching device 15, although in figure by overcurrent detecting device 6 It is not shown, but those skilled in the art is appreciated that, when 6 action actuation actuating lever 16 of overcurrent detecting device, actuating lever 16 activates Release lever 153 acts, and causes the tripping 12 of operating mechanism 1 and the engaging unlock of lock 151, drive shaft 4 rotates, to drive The dropout of breaker, that is, the separation of static contact 2, moving contact component 3.

Three be arranged laterally side by side are shown in FIG. 6 for detecting the overcurrent for flowing through the electric current in main loop unit Detection device 6, specifically as shown in Fig. 8~Figure 12, the overcurrent detecting device 6 includes magnetic release 61 and thermal trip 62, the magnetic release 61 includes the mounting bracket 611 of a fixed setting, and both sides are separately formed peace setting up and down Tankage 6111；One yoke 612, is fixedly mounted in the mounting bracket 611；One armature 613, both sides are respectively equipped with connection Axis 6131, the connecting shaft 6131 are slidably arranged in corresponding mounting groove 6111, and the armature 613 can be in mounting bracket 611 y direction is slided up and down along mounting groove 6111, and between the yoke 612 there is electromagnetism to be attracted gap；One is anti- Power spring 614 is connected between mounting bracket 611 and armature 613, is opened away from 612 direction of yoke reprimand for being provided for armature 613 Counter-force；One commutation striking structure 615, the commutation striking structure 615 are rotatably arranged on including one in mounting bracket 611 Rotating bar 6151 and and the strike bar 6152 that is slidably arranged in mounting bracket 611 in hinged with rotating bar 6151, the rotation The linkage portion 61511 that the middle part of bar 6151 is hinged on by axis hole in mounting bracket 611, one end is extended connect with armature 613, The auxiliary section 61512 and hit bar 6152 is hinged, third end is extended adjustment portion 61513 and reaction spring that the other end extends 614 connections.Armature 613 slides up and down, and linkage portion 61511 can be driven to rotate, and rotating bar is driven as linkage portion 61511 rotates 6151 rotations, rotating bar 6151 overcome reaction spring 614 to be rotated around axis hole, and the rotation of auxiliary section 61512 drives strike bar 6152 dynamic Make.One end of the strike bar 6152 is laterally extended and is formed with beating part 61521, middle part laterally has kidney slot 61522, holder 611 limit round table 6112 is arranged in kidney slot 61522, strike bar 6152 can on holder 611 left and right transverse shifting.It is described Touch part 163 on there is a magnetic release touch part 1631, which is used for and strike bar 6152 Beating part 61521 coordinates.When magnetic release 61 detects abnormal current, armature 613 and yoke 612 are attracted, and armature 613 is towards magnetic 612 direction of yoke moves, that is, in Fig. 8 in downward direction, and armature 613 drives linkage portion 61511 to rotate down, with linkage portion 61511 rotate, and rotating bar 6151 overcomes reaction spring 614 to be rotated around axis hole at this time, drive auxiliary section 61512 to rotate, auxiliary section 61512 actuate strike bar 6152 left and right crosswise movement under the effect of limit round table 6112.Change armature 613 by rotating bar 6151 It is moved up and down in the y direction of mounting bracket 611, the horizontal axis for hitting bar 6152 in mounting bracket 611 is actuated by rotating bar 6151 The touch part 163 of the actuating lever 16 of direction hitting operation mechanism 1 drives 16 or so transverse shifting of actuating lever, in actuating lever 16 Actuation part 162 activates operating mechanism 1, and to make moving contact component 3 be detached from static contact 2, breaker is off.

Dropout force amplificatory structure 8 is shown in Figure 17~Figure 25, has enlarger 81 and towards release lever shown in Figure 24 153 tripping push rod 82, reset push rod 83 and the resetting springs 84 for the reset of push rod 82 of tripping outstanding.The enlarger Structure 81 is arranged in the second vessel 402, the power output for amplifying current sensing means 6, as shown in figure 18, preferred enlarger 81 fixed form of structure, is additionally provided with pressing plate 85 and trip bolt 86 outside the enlarger 81, is pushed down and is mounted in by pressing plate 86 Enlarger 81 is fixed on the by enlarger 81 in the second vessel 402 and after being fixed by trip bolt 86 and pedestal 400 In two vessels 402；The tripping push rod 82 and pyromagnetic regulating device 7 is in same first vessel 401, and the reset pushes away Bar 83 and enlarger 81 are in same second vessel 402, are resetted push rod 83 and are rotated hub setting on pedestal 402, which pushes away There is bar 83 first reset arm 831, actuator arm 832 and the second reset arm 833, first reset arm 831 to be used for and shaft 4 It is coupled（Circuit breaker operation mechanism herein be coupled namely circuit breaker tripping when, shaft 4 touches in circuit breaker tripping One reset arm 831）, the actuator arm 832 is engaged with the conflicts end 821 of tripping push rod 82, pushed away for activating to trip Bar 82 rotates；Second reset arm 833 and 81 press-fit of enlarger, the strike or right for receiving enlarger 81 Enlarger 81 is resetted.When enlarger 81 receives trip signal release, driven while hitting the second reset arm 833 It resets push rod 83 to rotate, actuator arm 832 pushes conflict end 821 actuating tripping push rod 82 and rotates, the actuating end 822 for the push rod 82 that trips Operating mechanism 1 is activated to thread off.In the present embodiment, actuating end 822 activates the release lever 153 in operating mechanism 1, causes operation machine The tripping mechanism 12 of structure 1 unlocks, and elbow-bar mechanism 11 is driven to act, and drive shaft 4 rotates, to drive the dropout of breaker, It is exactly static contact 2, the separation of moving contact component 3.The first reset arm 831 of push rod 83 is resetted during circuit breaker tripping by shaft When 4 driving spinning reduction, the first reset arm 831, which drives, resets the second reset arm 833 actuating enlarger while push rod 83 rotates Structure 81 resets.For resetting spring 84 for the reply after the actuating of push rod 82 of tripping, described 84 one end of resetting spring is resisted against pedestal On 400 the first vessel 401, the other end is resisted against on the tripping push rod 82.

See Figure 26 and Figure 27, with reference to Figure 19, the enlarger 81 includes holder 811, strike bar 812, half Axis 813, cantilever 814, torsional spring 815, spring 816, specifically, a holder 811 with stent cavity 8111 is given, with Figure 26 institutes For showing the state of position, in the front of the holder 811 to rivet or weld or be fixed in other similar fashion a cover board 8115, there is a spring base 81151, the spring base 81151 both can be formed in cover board with integral manner on cover board 8115 It on 8115, is preferably fixed in a welding manner with cover board 8115 after can also separately processing, entire spring base 81151 is located at holder In chamber 8111, and there are a spring accommodating chamber 811511, the spring to accommodate in the center composition of the short transverse of spring base 81151 Chamber 811511 is alternatively referred to as spring receiving hole, and is blind hole.A pilot hole 8112 is offered at the top of holder 811, this is led The central part at the top of holder 811 is preferably placed to hole 8112, and corresponding with spring base 81151.One 812, bar of strike In in stent cavity 8111, the center of the short transverse of the strike bar 812 offers a spring cavity 8124, and the strike bar 812 Head 8121 it is corresponding with pilot hole 8112 above-mentioned, and across the pushing of the pilot hole 8112 and the second reset arm 833 Cooperation, lower end are slidably matched by means of spring cavity 8124 with spring base 81151, on the outer wall of strike bar 812 and are surrounded The circumferencial direction composition of outer wall has a first step 8122 and a second step 8123.Semiaxis 813 is located in stent cavity 8111, and Being supported on the wall body of the holder 811 as shown in figs. 31 and 32 for rotation, the first axle journal is provided in 813 one end of semiaxis 8131, the second axle journal 8132 is provided with the mounting hole 81131 to match with the first axle journal 8131 on the upper wall body 8113 of holder 811, And the guide groove 81132 being connected with mounting hole 81131,81132 width of guide groove are big less than the diameter of mounting hole 81131 In the diameter of the second axle journal 8132；813 other end of semiaxis is provided with third axle journal 8133, holder corresponding with upper wall body 8113 The matching hole 81141 of the cooperation of third axle journal 8133 is provided on 811 lower wall 8114；In the middle part of semiaxis 813 and direction The side of strike bar 812 above-mentioned, which is constituted, a milling flat 8134（Figure 31 shows）, the milling flat 8134 with strike 812 outer wall of bar on First step 8122 match.One end, that is, base portion of one cantilever 814 is fixed on semiaxis 813, and the other end of cantilever 814 drives Moving part 8141 corresponds to the dropout push rod 72 of the pyromagnetic regulating device 7 of breaker, and cantilever 814 can be made to make around the center of semiaxis 813 Rotary motion, while semiaxis 813 being driven also to rotate.Torsional spring 815 is nested on semiaxis 813, which can also be referred to as For counteracting spring, which is set on semiaxis 813, and the first torsional spring angle of the torsional spring 815 keep out on holder 811, It keeps out on the cantilever 814 at the second torsional spring angle；Cantilever 815 is set to be close proximity to dropout push rod 72 in free state.Spring 816 One end, that is, Figure 28 shown in the right end of location status be contained in spring cavity 8124 above-mentioned, and left end is placed in spring accommodating chamber In 811511.

See Figure 28 and Figure 30, referring first to Figure 28, the first step 8122 hit at this time on bar 812 sticks on semiaxis The position of 813 milling flat 8134, in this state, since strike bar 812 cannot be moved to the direction of arrow E, to keep The position shown in Figure 28.See Figure 29, actuator 8141 on cantilever 814 by the direction of arrow E tripping force（Tripping force comes From the power output of the overcurrent detecting device 6 in breaker）The position shown in Figure 28 of cantilever 814 is driven to turn to position shown in Figure 29 It is dynamic, while the state shown in Figure 29 of semiaxis 813 being pulled to be changed into state shown in Figure 30.In addition, the first step of strike bar 812 8122 are detached from the limitation at 8134 position of milling flat of semiaxis 813, under the action of spring 816, self- steering hole in the direction of arrow E 8112 stretch out, until the second step 8123 on strike bar 812 leans against on the wall of holder 811, and keep in the position.Strike The head 8121 of bar 812 can externally export hitting power, and to hit the second reset arm 833, which drives to reset and push away Actuator arm 832 pushes tripping push rod 82 and rotates while bar 83 rotates, and tripping push rod 82 drives the dropout of breaker.Work as breaker The first reset arm 831 that push rod 83 is resetted during threading off is driven via storage capacitors simultaneously, and the first reset arm 831 drives reset push rod 83 to rotate While the second reset arm 833 actuating enlarger 81 reset the state shown in Figure 30 be restored to state shown in Figure 28.At this point, jumping Lock push rod 82 also resets under the action of resetting spring 84.

With reference to figure 17 and Fig. 2,5, Figure 41 are combined, pyromagnetic regulating device 7 is the overcurrent detecting device 6 adjusted in breaker Pyromagnetic protection feature device, be arranged in the first vessel 401, the pyromagnetic regulating device 7 have magnetically condition bar 71, thread off push away Bar 72, knob regulating device 73, regulating mechanism 74.The magnetically condition bar 71 is horizontally installed in intermediate cap 200（Fig. 2 institutes Show）, slide fit is on the both side plate 141 on operating mechanism 1 and parallel with above-mentioned actuating lever 16, one end and overcurrent detecting device 6 In magnetic release 61 connect, the other end connect with knob regulating device 73.Preferably, U-shaped is offered on the both side plate 141 Groove 143 forms cavity 144 with actuating lever holder 142, which can accommodate 71 horizontal sliding of magnetically condition bar.

Knob regulating device 73 includes knob mounting bracket 731 and knob assembly, and the knob mounting bracket 731 is axial Equipped with interconnecting piece 7311, both sides are respectively arranged with the first position block 7312 and the second position block 7313, and therein first is fixed It is provided with mounting groove 73121 on the block 7312 of position, knob mounting bracket 731 is fixed on pedestal 400 by screw.Described The rotatable hub setting of knob assembly is in interconnecting piece 7311, the heat for adjusting the breaker or magnetic protection setting electric current.Wherein The knob assembly includes the thermal conditioning rotation for adjusting the magnetically condition knob assembly 732 of magnetic release 61 and adjusting thermal trip 62 Button component 733, which includes adjusting knob 7321, turning knob 7322 and elastic component 7323, described Adjusting knob 7321 has the first knob axle journal 73211, and 73211 hub setting of the first knob axle journal is in interconnecting piece 7311, and first 73211 upper end of knob axle journal is clicking section 73212, and multiple engagings are circumferentially disposed on the outer wall of the clicking section 73212 Portion 732121, specific multiple holding sections 732121 are arranged in gear-like.And there is band instruction on clicking section 73212 The indicator 732122 of function and the shifting part 732123 that the rotation of adjusting knob 7321 can be stirred；The turning knob 7322 with Adjusting knob 7321 connect, and with 7321 synchronous rotary of adjusting knob, it is preferred that the adjusting knob 7321 with rotation revolve The axial direction that button 7322 connects one end offers cruciform groove 73213, the turning knob 7322 with adjusting knob 7321 Axial constitute of connection one end has cross boss 73221, passes through the cunning of cross boss 73221 and cruciform groove 73213 The connection of the two is matched and realized to dynamic card, and the turning knob 7322 can be rotated with the rotation of adjusting knob 7321.Conversely, institute The adjusting knob 7321 stated has cross boss, the turning knob in axial constitute for connecting one end with turning knob 7322 7322 offer cruciform groove in the axial direction for connecting one end with adjusting knob 7321, pass through cross boss and cruciform groove Sliding card match and the connection both realized, and the turning knob 7322 can be rotated with the rotation of adjusting knob 7321.When The sliding card for being so not limited only to cross boss and cruciform groove is matched, and can also be that "-" type groove and "-" type are convex The sliding card of platform is matched, and can also be that the sliding card of flute profile boss and type recess is matched, and need to only be ensured turning knob 7322 and be adjusted Knob 7321 can slide up and down after clamping, and turning knob 7322 can follow adjusting knob 7321 while rotate；Elastic component 7323 are arranged between adjusting knob 7321 and turning knob 7322, and one end contradicts on adjusting knob 7321, the other end supports It touches on turning knob 7322, for providing restoring force for adjusting knob 7321, the elastic component 7323 is preferably compression spring.

It please refers to Figure 33~Figure 35 and combines Fig. 8 and Fig. 9, the magnetic release 61 further includes that reaction spring adjusts push rod 616, which adjusts 616 one end of push rod and is connect with reaction spring 614, above-mentioned adjustment portion 61513 and reaction spring tune The regulating tank for adjusting 614 elastic force of reaction spring is all offered on section push rod 616, and the bullet of reaction spring 614 is adjusted Power size.Reaction spring adjusts the other end and the magnetically condition bar 71 of push rod 616 against and the magnetically condition bar 71 and knob tune One end that regulating device 73 connects is equipped with dentation engaging section 711, and the dentation engaging section 711 is nibbled with magnetically condition knob assembly 732 It closes, the specific dentation engaging section 711 is engaged with the holding section 7324 of the second gear shape on turning knob 7322.It is described Knob regulating device 73 further include retainer 734, magnetically condition knob assembly 732 rotation by dentation engaging section 711 drive 71 transverse shifting of magnetically condition bar adjusts the current setting of breaker setting（The magnetic release 61 for adjusting the breaker is arranged Electric current reaches desired and adjusts numerical value）When be meshed with retainer 734, for limit magnetically condition knob assembly 732 rotate.It should Retainer 734 is fixedly mounted in knob mounting bracket 731, and is arranged in 7321 side of adjusting knob, be which is provided with convex rafter and is stopped Moving part 7341, when adjusting knob 7321 is moved axially along the mounting groove 6111 of mounting bracket 611, the convex rafter retainer 7341 can engage or be detached from the holding section 732121 of first gear shape.That is, when the tune in magnetically condition knob assembly 732 When section knob 7321 is pressed, elastic component 7323 compresses, and the holding section 732121 of first gear shape is detached from convex rafter retainer 7341, Adjusting knob 7321 can stir rotation at this time, and turning knob 7322 is driven to rotate together, and the magnetic for adjusting the breaker is protected Shield setting current values decontrol adjusting knob 7321, under the promotion of 7323 restoring force of elastic component after reaching desired numerical value Adjusting knob 7321 resets upwards, and the holding section 732121 of first gear shape thereon is made to be nibbled again with convex rafter retainer 7341 again It closes, to limit the rotation of adjusting knob 7321.

Specific implementation process, this patent provide one of which embodiment：It is opened on adjusting knob 7321 described in Figure 36 and 40 If cruciform groove 73213 with constituted on turning knob 7322 cross boss 73221 sliding card match, the first knob axle journal There is section 732111 on 73211；The interconnecting piece 7311 of the knob mounting bracket 731 has for accommodating the first knob axle journal 73211 the first mounting hole 73111, while it being additionally provided with the first mounting groove 73112 being connect with the first mounting hole 73111, first The width of mounting groove 73112 is less than the diameter of the first mounting hole 73111；The turning knob 7322 is equipped with the second rotation axis Neck 73222 and third knob axle journal 73223,73223 diameter of third knob axle journal is less than the second knob axle journal 73222, described The interconnecting piece 7311 of knob mounting bracket 731 has the second mounting hole 73113 for accommodating the second knob axle journal 73222, together When be additionally provided with the second mounting groove 73114 being connect with the second mounting hole 73113, the width of the second mounting groove 73114 is less than second The diameter of mounting hole 73113.When assembly, elastic component 7323 is placed between adjusting knob 7321 and turning knob 7322, adjusts rotation The cruciform groove 73213 of button 7321 realizes that sliding card is matched with the cross boss 73221 on turning knob 7322 and constitutes magnetic tune Save knob assembly 732；Magnetically condition knob assembly 732 is packed into first compression elastic piece 7323 before knob mounting bracket 731, makes magnetically condition The third knob axle journal 73223 of turning knob 7322 in knob assembly 732 is packed into the second installation by the second mounting groove 73114 Hole 73113, by the section 732111 of adjusting knob 7321 it is parallel with the first mounting groove 73112 and be packed into the first mounting hole 73111. Elastic component 7323 discharges after loading, pushes adjusting knob 7321 and turning knob 7322, makes the first knob of adjusting knob 7321 Axle journal 73211 and the first mounting hole 73111 of holder 731 coordinate, the second knob axle journal 73222 and second of turning knob 7322 Mounting hole 73113 combines, and the holding section 732121 of the first gear shape that is in of adjusting knob 7321 and convex rafter retainer 7341 Engagement, adjusting knob 7321 can not rotate at this time.When the downward push of adjusting knob 7321 in magnetically condition knob assembly 732, pressure When contracting elastic component 7323, the holding section 732121 of first gear shape is detached from convex rafter retainer 7341（As shown in figure 40）, then lead to Crossing shifting part 732123 makes adjusting knob 7321 rotate, and then turning knob 7322 is driven to rotate, for adjusting the breaker Current values are arranged in magnetic release 61, decontrol adjusting knob 7321 again after reaching desired numerical value, elastic component 7323 is being replied So that adjusting knob 7321 is resetted upwards under the promotion of power, the holding section 732121 of first gear shape again again with convex rafter retainer 7341 engagements（As shown in figure 39）, the limitation rotation of adjusting knob 7321.

It is foregoing to be shown in FIG. 6 three be arranged laterally side by side for detecting the electricity flowed through in main loop unit The thermal trip 62 of stream, detects abnormal current by 62 action actuation actuating lever 16 of thermal trip, 16 transverse shifting of actuating lever, Actuation part 162 in actuating lever 16 activates operating mechanism 1 and threads off.Specifically as shown in Figure 13~Figure 15, the major loop list Thermal trip 62 recited above is provided in member, the thermal trip 62 includes the bimetal leaf 621 of crosswise movement, double gold When belonging to the action of piece 621,16 transverse translation of actuating lever is pushed.The top of the bimetal leaf 621 has free end 6211, and extends to Near actuating lever 16.Pyromagnetic regulating device 7 is additionally provided with heat regulating device, which includes：The heat of one rotation setting Adjusting knob component 733 can set breaker overload protection setting current；The connecting rod 741 of one sliding setting, the connecting rod 741 One end and the dropout push rod 72 be hinged, the other end is sequentially connected with the thermal conditioning knob assembly 733；One rotation setting Dropout push rod 72 on connecting rod 741 may be actuated operating mechanism 1 and act；When bimetal leaf 621 acts, push actuating lever 16 horizontal To translation, actuating lever 16 drives 72 rotary-actuated operating mechanism 1 of dropout push rod to act；The touch part 163 and bimetal leaf There is gap between 621 and/or between the actuation part 162 and dropout push rod 72；When the thermal conditioning knob assembly 732 The connecting rod 741 can be driven to slide when rotation, and then dropout push rod 72 is driven to move left and right, to adjust bimetal leaf 621 With the gap between dropout push rod 72, to realize the adjusting of the Thermal protection characteristic of breaker.

Specifically, Figure 41~Figure 44 is please referred to, above-mentioned thermal conditioning knob assembly 733 and dropout push rod 72 and regulating mechanism 74 combinations constitute heat regulating device, i.e., 62 setting current of thermal trip that breaker is turned in thermal conditioning knob assembly 733 reaches To desired numerical value.Specifically, the regulating mechanism 74 is arranged in pedestal 400, one end is cut with scissors with the dropout push rod 72 It connects, the other end is sequentially connected with the thermal conditioning knob assembly 733.The regulating mechanism 74 includes a connecting rod 741, the company Bar 741 is articulated between dropout push rod 72 and thermal conditioning knob assembly 733, the connecting rod 741 with thermal conditioning knob assembly 733 Clamping portion 7411 is provided on hinged end.Above-mentioned thermal conditioning knob assembly 733 and the basic phase of 732 structure of magnetically condition knob assembly Together, the lower rotational knob for equally having top adjusting knob and engaging with top adjusting knob, top adjusting knob equally have There is the holding section with 7341 engaging tooth colyliform of convex rafter retainer, which is not described herein again.Thermal conditioning knob assembly unlike unique 733 bottoms are provided with the spiral line groove 7331 that can accommodate clamping portion 7411, and the clamping portion 7411 of connecting rod 741 is connected in helix In groove 7331, the clamping portion 7411 is the boss being clamped with spiral line groove 7331.Certainly in other examples, Ah Base Mead helix can be replaced by other cam curves, can when thermal conditioning knob assembly 732 rotates as long as can realize The connecting rod 741 is driven to slide to change the position of dropout push rod 72.

The dropout push rod 72 is arranged in the second vessel 402 of pedestal 400, and one end of the dropout push rod 72 is pushed away end There is gap B between 723 and the actuation part 162 of actuating lever 16, have between other end output end 724 and actuating operating mechanism 1 Clearance C.In the operating mechanism embodiment with dropout force amplificatory structure 8 shown in Figure 41,42, clearance C refers to threading off The gap between actuator 8141 on the output end 724 and cantilever 814 of push rod 72.Certainly work as thermal tripping in another embodiment If 62 power output of device is sufficiently large, operating mechanism 1 need not thread off force amplificatory structure 8 when, the output end of dropout push rod 72 at this time 724 directly hit the release lever 153 of operating mechanism 1, clearance C refer to the output end 724 of dropout push rod 72 and release lever 153 it Between gap.In addition the gap A between the free end 6211 and actuating lever 16 of bimetal leaf 621 in fig. 13, works as bimetal leaf When 621 action, first to cover gap A could push actuating lever 16, and actuating lever 16, which will cover gap B, could push dropout push rod 72, dropout push rod 72, which needs to cover clearance C, could push operating mechanism 1 to act.That is the free end of bimetal leaf 621 The 6211 actuating actions of operating mechanisms 1 need to overcome certain idle stroke, i.e., the length of the idle stroke of bimetal leaf 621 be gap A, B, the sum of C.When the thermal conditioning knob assembly 733 drives the connecting rod 741 to move left and right by rotating, dropout push rod is adjusted The rotation center distance of 72 centre of gyration and thermal conditioning knob assembly 733 changes, and to adjust gap B and clearance C, comes Change bimetal leaf 621 free end 6211 and operating mechanism 1 idle stroke, to realize breaker Thermal protection characteristic tune Section.

Thermal trip 62 recited above further includes a L bracket 622, and galvanic circle busbar 623 is stacked and placed on load side end The top of sub 9 short transverses, one end is electrically connected with moving contact component 3, the other end is electrically connected with load side terminal 9.L bracket A 622 wherein flanging is located at the side of galvanic circle busbar 623, and is fixed with one end of bimetal leaf 621, the L-shaped branch It is arranged on the end face of the other end of the galvanic circle busbar 623 to wherein another folding and rotating of frame 622；Specifically, exist On wherein another flanging of the L bracket 622 have a fulcrum 6221, L bracket 622 by the fulcrum 6221 rotationally It is arranged on the end face of the other end of the galvanic circle busbar 623.The bimetal leaf 621 is arranged in galvanic circle mother The side of line 623, the L bracket 622 are then connect after bending with galvanic circle busbar 623.The bimetal leaf 621 Other end structure is free end 6211, and the free end 6211 is when breaker is overloaded as the strike end of cut-off breaker, institute It is spaced certain spacing between the actuating lever 16 stated and the free end 6211 of bimetal leaf 621 and is arranged opposite to each other, that is, Gap A, bimetal leaf 621 are bent due to the heat of galvanic circle busbar 623, and thermal deformation is gradually right on bending direction D The actuating lever 16 loads, the transverse translation due to compression of actuating lever 16；Namely became when overcurrent flows through main loop unit When load condition, galvanic circle busbar 623 generates heat, and the heat which sends out is used to heat the bimetallic Piece 621 makes 621 deflection deformation of bimetal leaf, the free end 6211 of bimetal leaf 621 and the touch part 163 of above-mentioned actuating lever 16 Contact, specifically, the touch part 163 is additionally provided with thermal trip touch part 1632.When the deflection deformation of the free end 6211 It is contacted with thermal trip touch part 1632, and pushes the transverse translation in the directiond of actuating lever 16, the movement of the actuating lever 16 causes Dynamic portion 162 can actuated release force amplificatory structure 8 act, activate operating mechanism 1, to make moving contact component 3 be detached from static contact 2, Breaker is off.In figure 16, breaker further includes heater element 624, which is placed in load side end Between son 9 and galvanic circle busbar 623, electric current flows into load side end from galvanic circle busbar 623 by heater element 624 at this time Son 9, the material by replacing heater element 624 can form the thermal trip 62 of different setting currents.

In Figure 13~Figure 15, wherein another flanging of the L bracket 622 is arranged in the another of galvanic circle busbar 623 On the end face of one end, there is the fulcrum 6221 that can be rotated around galvanic circle busbar 623, it is preferred that described in the present embodiment Fulcrum 6221 is boss, and the circular hole 6231 on corresponding galvanic circle busbar 623 engages with fulcrum 6221, and L bracket 622 can be It is rotated around fulcrum 6221 on galvanic circle busbar 623, in actual production, adjusts the heat of three-phase bimetal leaf 621 and actuating lever 16 When synchronism, need to only rotation adjustment be carried out to wherein another flanging of L bracket 622, make 622 rotational angle of L bracket and take Band bimetal leaf 621 rotates together, to adjust the gap A between the free end 6211 of bimetal leaf 621 and actuating lever 16. Conversely, when the fulcrum 6221 is circular hole, corresponding galvanic circle busbar 623 is also equipped with the boss engaged with circular hole can With.

The L bracket 622 is further opened with a slotted eye 6222, the galvanic circle on another flanging wherein It is also preset with threaded hole 6232 on busbar 623, is taken after same bimetal leaf 621 is adjusted in place together in L bracket 622, passes through spiral shell The L bracket 622 is fastened to galvanic circle busbar by nail after slotted eye 6222 and the threaded hole 6232 On 623.In the present embodiment, the fulcrum 6221 is positioned close in one end of bimetal leaf 621, and slotted eye 6222 It is arranged far from one end of bimetal leaf 621.Certainly, the position relationship between slotted eye 6222 and fulcrum 6221 is not by upper The limitation of description is stated, position is such as exchanged and also can be achieved on its function, same rotatable L bracket 622.

With continued reference to Figure 43, Figure 44 and Figure 45~47 are combined, wherein Figure 47 is the principle for better illustrating thermal conditioning, is threaded off Push rod 72 keeps the state of not rotation, turns an angle in 72 moving process of dropout push rod in practice certainly, but not shadow Ring the gap of thermal conditioning.16 actuation trip force amplificatory structure 8 of actuating lever acts in the present embodiment, and dropout force amplificatory structure 8 causes Pneumatic operating mechanism 1 acts, and to activate circuit breaker tripping, cuts off circuit.Dropout push rod 72 is held 723 and actuating lever 16 by pushing away There is gap B between actuation part 162, there is clearance C between the actuator 8141 on output end 724 and cantilever 814.In Figure 49 and In Figure 50, the bottom of the pedestal 400 offers the guide groove 403 for accommodating 741 horizontal sliding of connecting rod；The tripping force enlarger For the holder 811 of structure 8 towards limiting slot 8116 is formed at guide groove 403, the limiting slot 8116 is corresponding with the position of guide groove 403 It communicates, connecting rod 741 is slidably mounted on the end that dropout push rod 72 is hinged in limiting slot 8116, passes through guide groove 403 and limit Position slot 8116 limits connecting rod 741 so that the horizontal sliding when moving of connecting rod 741.Preferably, the dropout push rod 72 and connecting rod During both 741 is hinged, connecting rod 741 is equipped with pillar 7412, and corresponds to pillar 7412 on dropout push rod 72 and be equipped with hinge hole 721, In one end insertion hinge hole 721 of pillar 7412, the other end of pillar 7412 is slidably mounted in limiting slot 8116.Specifically, The hinge hole 721 is equipped with open slot 722, and the pillar 7412 is realized after open slot 722 struts in embedded hinge hole 721 Connecting rod 741 hingedly coordinates with push rod 72.Certainly in both the dropout push rod 72 and connecting rod 741 are hinged, the pillar It can also be arranged on dropout push rod 72, and the hinge hole is then correspondingly arranged on connecting rod 741, passes through pillar and hinge hole Embedded cooperation and connecting rod 741 is articulated on dropout push rod 72.Also there is spacing block set 7413, preferred institute on connecting rod 741 It states spacing block set 7413 to be integrally formed with pillar 7412 set on the lower section of connecting rod 741, and because of the broad-ruler of spacing block set 7413 The very little groove width size more than limiting slot 8116, so the pillar 7412 of connecting rod 741 will not skid off limiting slot 8116, connecting rod 741 It will not be detached from holder 811, to ensure that the horizontal sliding of connecting rod 741.When thermal conditioning knob assembly 733 rotates band When dynamic connecting rod 741 moves, be capable of 7412 relative limit slot 8116 of the pillar sliding of drive link 741, drive dropout push rod 72 to A left side is linked to the right, to adjust gap B and clearance C, to realize the adjusting of the Thermal protection characteristic of breaker.

The thermal conditioning that involved breaker is created in the utility model can also be in the above-described embodiment by changing one A little technical characteristics form multiple technologies embodiment, which can meet the need of the Thermal protection characteristic of breaker It asks, and generates those skilled in the art's technique effect to understand, adapt to the purpose that the utility model is created.A variety of skills Art scheme includes a variety of performances exemplified below, but is not limited to the scheme enumerated below.

The first embodiment, increases spring on dropout push rod 72, and the active force of spring makes the output of dropout push rod 72 End 724 is resisted against always on the actuator 8141 on cantilever 814 or release lever 153, and clearance C is not present at this time, and actuating lever Being pushed away between end 723 for 16 actuation part 162 and dropout push rod 72 has gap B, and the heat of breaker is adjusted in this performance Protection feature be exactly adjust actuating lever 16 actuation part 162 and dropout push rod 72 by push away end 723 between gap B.

Second of embodiment, increases spring on dropout push rod 72, and the active force of spring makes being pushed away for dropout push rod 72 End 723 is resisted against always in the actuation part 162 of actuating lever 16, and clearance C exists at this time, and gap B, this performance may be not present In, the Thermal protection characteristic for adjusting breaker is exactly to adjust clearance C.

The third embodiment, increases spring in actuating lever 16, and the active force of spring makes the touch part 163 of actuating lever 16 Always against on bimetal leaf 621, gap B, C exists at this time, may be not present gap A, in this performance, adjusts breaker Thermal protection characteristic be exactly to adjust gap B+C.

4th kind of embodiment, increases linkage mechanism, such as in dropout push rod 72 between dropout push rod 72 and actuating lever 16 Upper setting kidney slot, and protruding shaft is fixedly installed in the actuation part of actuating lever 16 162, protruding shaft is threaded through in above-mentioned kidney slot, In this way, generating linkage between dropout push rod 72 and actuating lever 16, therefore gap B is not present, and clearance C exists, this performance In, the Thermal protection characteristic for adjusting breaker is exactly to adjust clearance C.

Claims (10)

1. a kind of breaker with magnetic release, the breaker includes main casing and the master that is disposed longitudinally in main casing The actuating lever (16) for the transverse translation setting that circuit units, operating mechanism (1) and actuating operating mechanism (1) act, the master Circuit units are equipped with magnetic release (61), which is characterized in that the magnetic release (61) includes：

The mounting bracket (611) of one fixed setting；

One yoke (612) is fixedly mounted in the mounting bracket (611)；

One armature (613), the armature (613) can be slided up and down in mounting bracket (611), and with the yoke (612) Between have electromagnetism be attracted gap；

One reaction spring (614) denounces the counter-force opened for being provided for armature (613) away from yoke (612) direction；

One commutation striking structure (615), the commutation striking structure (615) are rotatably arranged on mounting bracket (611) including one On rotating bar (6151) and one be hinged with rotating bar (6151) and the strike bar that is slidably arranged in mounting bracket (611) (6152), when armature (613) and yoke (612) are attracted, armature (613) drives rotating bar (6151) to overcome reaction spring (614) Effect rotation, and strike bar (6152) is actuated by rotating bar (6151) and hits actuating lever (16), and then drive actuating lever (16) horizontal To operating mechanism (1) action mobile and that actuating is described, make circuit breaker tripping.

2. a kind of breaker with magnetic release according to claim 1, it is characterised in that the rotating bar (6151) it is hinged in mounting bracket (611), the linkage portion (61511) that one end is extended is connect with armature (613), the other end prolongs The auxiliary section (61512) of stretching is hinged with strike bar (6152), and armature (613) slides up and down, and linkage portion (61511) is driven to turn It is dynamic, drive rotating bar (6151) that the effect of reaction spring (614) is overcome to rotate as linkage portion (61511) rotates, and with Portion (61512) drives strike bar (6152) to act.

3. a kind of breaker with magnetic release according to claim 1, it is characterised in that the strike bar (6152) One end be laterally extended be formed with one with actuating lever (16) cooperation beating part (61521), middle part laterally have kidney slot (61522)；The mounting bracket (611) is equipped with limit round table (6112), which is arranged in kidney slot (61522) in, make strike bar (6152) can in mounting bracket (611) left and right transverse shifting.

4. a kind of breaker with magnetic release according to claim 1, it is characterised in that the rotating bar (6151) The adjustment portion (61513) extended is connect with reaction spring (614), and the magnetic release (61) further includes one being rotatably arranged on Reaction spring in mounting bracket (611) adjusts push rod (616), and one end of the reaction spring (614) connects rotating bar (6151) adjustment portion (61513), other end connection reaction spring adjust push rod (616).

5. a kind of breaker with magnetic release according to claim 4, it is characterised in that the adjustment portion (61513) and reaction spring adjusts the adjusting all offered on push rod (616) for adjusting reaction spring (614) elastic force The elastic force of reaction spring (614) is adjusted in slot.

6. a kind of breaker with magnetic release according to claim 1, it is characterised in that the breaker also wraps Include dropout push rod (72), one end of the dropout push rod (72) is by pushing away end (723) and the actuation part (162) of actuating lever (16) is matched It closing, other end output end (724) coordinates with operating mechanism (1), when hitting bar (6152) promotion actuating lever (16) transverse translation, Actuating lever (16) driving dropout push rod (72) is pushed away end (723), drives dropout push rod (72) rotation, dropout push rod (72) it is defeated Outlet (724) activates operating mechanism (1) and acts.

7. a kind of breaker with magnetic release according to claim 6, it is characterised in that the operating mechanism (1) Including dropout force amplificatory structure (8), the dropout force amplificatory structure (8) is the output power apparatus for amplifying magnetic release (61), When hitting bar (6152) promotion actuating lever (16) transverse translation, actuating lever (16) driving dropout push rod (72) is pushed away end (723), dropout push rod (72) is driven to rotate, output end (724) the actuation trip force amplificatory structure (8) of dropout push rod (72) is dynamic Make, dropout force amplificatory structure (8) activates operating mechanism (1) and acts, and to activate circuit breaker tripping, cuts off circuit.

8. a kind of breaker with magnetic release according to claim 4, it is characterised in that the breaker also wraps The magnetically condition knob assembly (732) and magnetically condition bar (71) for adjusting magnetic release (61) are included, magnetically condition bar (71) slide fit is in behaviour Make in mechanism (1), and one end adjusts push rod (616) against the other end is nibbled with magnetically condition knob assembly (732) with reaction spring It closes.

9. a kind of breaker with magnetic release according to claim 8, it is characterised in that the magnetically condition bar (71) one end being connect with knob regulating device (73) is equipped with dentation engaging section (711), the dentation engaging section (711) and magnetic Adjusting knob component (732) engages.

10. a kind of breaker with magnetic release according to claim 9, it is characterised in that the breaker also wraps Retainer (734) is included, drives magnetically condition bar (71) horizontal by dentation engaging section (711) in magnetically condition knob assembly (732) rotation It is meshed to when the mobile current setting for adjusting breaker setting with retainer (734), for limiting magnetically condition set of knobs Part (732) rotates.