CN207425760U

CN207425760U - Circuit breaker

Info

Publication number: CN207425760U
Application number: CN201721452634.6U
Authority: CN
Inventors: 林世锋; 林晖
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-11-02
Filing date: 2017-11-02
Publication date: 2018-05-29
Anticipated expiration: 2027-11-02

Abstract

The utility model provides a circuit breaker. The circuit breaker includes: the device comprises a shell, a first connecting piece and a second connecting piece, wherein a mounting cavity is arranged on the shell; the tripping device is arranged in the installation cavity and comprises a push-pull reset assembly, a cross beam, a moving contact and a static contact, the static contact is fixedly arranged in the installation cavity and positioned above the cross beam, the moving contact is arranged on the cross beam, and the push-pull reset assembly has a closing state for driving the cross beam to move so as to enable the moving contact to be in contact with the static contact and a tripping state for enabling the moving contact to be separated from the static contact; the self-checking module is arranged at the bottom of the mounting cavity and comprises a self-checking switch, and the push-pull reset assembly moves downwards to turn on the self-checking switch. The utility model discloses can prevent that the circuit breaker from being damaged by accident and not being found and continue to reset and use, will unable provide effectual safety protection phenomenon for load circuit, improve the reliability and the stability of circuit breaker.

Description

Breaker

Technical field

The utility model is related to protective device technical field, in particular to a kind of breaker.

Background technology

With the improvement of living standards, high-power application in domestic appliances is very universal.During household electrical appliance use, due to Aging circuit connects lack of standardization or improper use or even wire insulation damages caused by external force, it is possible that generating failure electricity Arc causes fire hazard.According to statistics, electric wiring causes fire accounting to reach more than 20%.Life caused by reduce fire Property loss, with deep and each side the popularization and application studied load abnormal electric current, various electric security protector devices It continues to bring out.

Main protection electric equipment products have at present：Residual current operated protective device (RCD), overcurrent release (CB), arc fault Protective device (AFDD) etc..They are able to detect that Leakage Current over the ground and electric trace galvanic current, overload current, fault electric arc electric current Deng, when some fault current be more than certain threshold values when give dropout protection, so as to reduce generation fire hazard.

The relevant criterion structural requirement summary being related to is as follows：

More than protective device should have free tripping mechanism.The structure of more than protective device should can be only put at moving contact and close Position or open position are closed, even if being also such when operating parts is discharged in a certain centre position.No matter it is manually operated or from dynamic circuit breaker It opens, the moving contact of two poles is substantially simultaneously closed and simultaneously switches off.

In addition, patent US 6040967 disclosed in Li Wei Teng Manufacturing Co of U.S. 1998.8.24 applications《With recovery Locking and the circuit interrupting device of reverse-connection protection and the manufacturing method of the device》.Li Weiteng companies of the U.S. 2003 are in Patent CN1457073A disclosed in state《The reset lockout of circuit breaking device and dropout》.

Generally there are following problems for the buckle releaser of above-mentioned circuit breaker：

1st, the working condition for only having indicator light to show breaker mostly, mechanical indication means are opened and closed without contact.

2nd, mostly without resetting lock function, when breaker is undiscovered and continuing to reset makes by accidental damage (as be struck by lightning) With will be unable to provide effective safeguard protection to load circuit.

3rd, mostly without independent hand tripping button.It can only disconnect contact with feeler switch simulated failure mostly.

4th, have that many product structures are simple, but assembling action is complicated, is unfavorable for quality control and mass production.

5th, there are integrity problems for buckle releaser.Reset cannot once succeed sometimes, it is necessary to mostly by several times.Because the time elapses, Possible changes in material properties causes frictional force to become larger and occurs threading off unsuccessful or occur mistake during locking actual effect because slightly shaking The situation of dropout.

Utility model content

The main purpose of the utility model is that a kind of breaker is provided, to solve short-circuit protection of the prior art The problem of lock function can not provide effectively protection to load circuit is not resetted.

To achieve these goals, the utility model provides a kind of breaker, including：Housing is set on the housing There is installation cavity；Drop-away reset device, the drop-away reset device are mounted in the installation cavity, and the drop-away reset device includes Reset assembly, crossbeam, moving contact and static contact are pushed and pulled, the static contact is fixedly mounted in the installation cavity and positioned at described The top of crossbeam, the moving contact are mounted on the crossbeam, the push-and-pull reset assembly have drive crossbeam movement with Make "on" position that the moving contact and the static contact be in contact and make the moving contact and the static contact be separated it is de- Buckle-like state；Selftest module, the selftest module are arranged on the bottom of the installation cavity, and the selftest module includes self-test switch, The push-and-pull reset assembly moves downward to open self-test switch.

Further, the first location hole is provided at the top of the housing, the push-and-pull reset assembly includes：Push-pull shaft, The push-pull shaft is vertically installed in the installation cavity and through the crossbeam, and the top of the push-pull shaft is located at described first and determines In the hole of position；Reset button, the reset button are fixedly mounted on the top of the push-pull shaft；First elastic element, described first Elastic element is set on the push-pull shaft, and the first end of first elastic element is supported in the outside of the housing, described The second end of first elastic element is supported in the bottom of the reset button；Shrapnel, two pieces of shrapnels are vacantly arranged on described In installation cavity and respectively positioned at the top at the both ends of the crossbeam.

Further, the bottom of the installation cavity is provided with the second location hole, and the bottom of the push-pull shaft is mounted on described In second location hole.

Further, the push-and-pull reset assembly further includes latch components, and the latch components have the push-pull shaft Locking is unlocked with the latched position that is synchronized with the movement with the push-pull shaft and to push-pull shaft with can be along the push-and-pull with the push-pull shaft The unlocked position of the axial relative movement of axis.

Further, the push-pull shaft is provided with outward flange, the lock group on the shaft part of the crossbeam bottom Part includes：

Lock, the lock are provided with kidney slot on the lower section of the crossbeam, the lock, and the push-pull shaft is worn In the kidney slot, the lock moves to the top for being stuck in the outward flange with the length direction along the kidney slot First latched position and it is stuck in the second latched position of the outward flange bottom and the depth direction along the kidney slot and institute State the unlocked position that opposite relative motion occurs for push-pull shaft；

Electromagnetic drive mechanism, the electromagnetic drive mechanism with it is described lock be drivingly connected with drive it is described lock along perpendicular to The direction of the push-pull shaft moves to cut between first latched position, second latched position and the unlocked position It changes.

Further, the breaker further includes master control borad, and the master control borad is mounted on the bottom of the installation cavity；It is described Electromagnetic drive mechanism includes：

Stent is provided with mounting hole and the contact pin for being electrically connected with the master control borad on the stent；

Iron core, the iron core are mounted in the mounting hole, and the lock is connected with the iron core；

Electromagnetic coil, the electromagnetic coil winding is on the bracket and positioned at the periphery of the iron core；

Second elastic element, second elastic element are set on iron core, and the both ends of second elastic element point It does not support on the iron core and the stent so that the plunger return.

Further, the stent includes tubular type main body, the first gear for the first end for being arranged on the tubular type main body Plate and be arranged on the tubular type main body second end second baffle, wherein,

The iron core is mounted in the tubular type main body, and the first end of the iron core protrudes from the first baffle, The second end of the iron core is provided with stage portion；

The electromagnetic coil is around the periphery for being located at the tubular type main body；

Elastic buckle is provided on the second baffle, the first end of second elastic element passes through the Elastic buckle Fixed, the second end fixation of second elastic element is supported in the stage portion.

Further, the selftest module further includes pressing piece, the pressing piece be mounted on the bottom of the crossbeam and The self-test switch is opened under the drive of the push-pull shaft.

Further, the pressing piece is the test briquetting for the bottom for being set in the push-pull shaft.

Further, the opposite of test briquetting is provided at both ends with spindle nose, and the bottom of the crossbeam is provided with two pieces The first opposite ear block is provided with the sliding slot being adapted with the spindle nose on the first ear block.

Further, the bottom of the crossbeam is provided with two pieces of first opposite ear blocks, described in the first ear block is formed Pressing piece.

Further, the breaker further includes master control borad, and the master control borad is mounted on the bottom of the installation cavity；It is described Self-test switch includes self-test shrapnel, and one end of the self-test shrapnel is welded on the master control borad, and the other end is vacantly arranged on institute State the bottom of pressing piece.

Further, the both ends of the crossbeam are both provided with guide post, are provided on the inner wall of the installation cavity and are led with described The guide groove that column is adapted.

Further, the periphery of the reset button is provided with positive stop lug boss, is set on the inner wall of first location hole There is the limiting slot being adapted with the positive stop lug boss.

Further, the breaker further includes hand tripping component, and the hand tripping component is described for making manually Moving contact and static contact phase separation.

Further, the upper end of the housing is additionally provided with the 3rd location hole, and the hand tripping component includes：

Hand tripping button, the hand tripping button are mounted in the 3rd location hole, the hand tripping button Bottom be provided with the first lozenges；

3rd elastic element, the both ends of the 3rd elastic element support respectively the top of the housing and it is described manually On trip push button；

First sliding block, first sliding block are mounted in the installation cavity, are provided on first sliding block and first wedge The second lozenges that shape face is adapted is provided with connecting hole on first sliding block, is provided with inserting section on the lock, works as institute When stating moving contact and the static contact joint, the inserting section is plugged in the connecting hole, and first lozenges with Second lozenges is engaged；When the moving contact and the static contact are separated, the inserting section and the connecting hole Phase separation, and the bottom of the hand tripping button is located above first sliding block and first lozenges and described second Lozenges is mutually separate；

4th elastic element, the both ends of the 4th elastic element are supported respectively in the inner wall of the installation cavity and described On side of one sliding block away from the push-pull shaft.

Further, form hole is provided on the housing, the upper end of the crossbeam is provided with two piece of second ear block, described The 3rd lozenges is provided on second ear block；

The breaker is additionally provided with opening and closing instruction device, and the opening and closing instruction device includes：

Second sliding block and return unit are provided with opening identification portion on second sliding block and close mark part, and described second The 4th lozenges being adapted with the 3rd lozenges is provided on sliding block；

When the crossbeam drives the moving contact and the static contact to be in contact, second sliding block is in second ear It moves to show the opening identification portion at the form hole under the driving of block；

When the crossbeam drives the moving contact and the static contact to be separated, second sliding block is in the return unit Under the action of reset and show the closing mark part.

Further, second sliding block includes horizontal segment and is vertically set on the vertical of the first end of the horizontal segment Section, the opening identification portion and the top closed mark part and be arranged on the vertical section, the 4th lozenges are arranged on The second end of the horizontal segment.

Further, the return unit is resetting spring, and the both ends of the resetting spring are supported respectively in the installation cavity Inner wall and second sliding block on.

Further, the first end of the horizontal segment is provided with positioning column, and the resetting spring is set in the positioning column On.

Further, first sliding block is fixed on second sliding block, the 4th elastic element and reset Part is the same part.

Further, the opening identification portion and the closing mark part are coating different colours or the different figures of different literals The mark part of case.

Further, it is provided with translucent cover on the form hole.

Using the technical solution of the utility model, the breaker in the utility model is connected between power supply and load, is broken The static contact of road device is connected with input neutral conductor, and input neutral conductor is connected with power cord, moving contact and output neutral conductor Connection, output neutral conductor are connected with load, and sensor module and master control borad are provided on breaker, and master control borad is mounted on installation The bottom of chamber, when sensor module detection and master control borad detect load circuit break down signal when, push-and-pull reset assembly hold Row trip action drives crossbeam movement, and then moving contact and static contact is made to be separated, and load circuit is protected.

Breaker is provided with selftest module in the utility model, before each use, by pushing and pulling the effect of reset assembly, The self-test switch of selftest module can be driven to open the self-checking function of breaker, prevent breaker by accidental damage (as being struck by lightning) not It is found and continues to reset use, will be unable to provide effective safeguard protection to load circuit, improve disconnected in the utility model The reliability and stability of road device.

Description of the drawings

The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality New schematic description and description does not form the improper restriction to the utility model for explaining the utility model. In the accompanying drawings：

Fig. 1 diagrammatically illustrates the stereogram of the breaker of the first embodiment of the utility model；

Fig. 2 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the first embodiment of the utility model The assembling figure of buckle assembly；

Fig. 3 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the first embodiment of the utility model The exploded view of buckle assembly；

Fig. 4 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the first embodiment of the utility model The top view of buckle assembly；

Fig. 5 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the first embodiment of the utility model Side view when fitting together of buckle assembly；

The broken section when breaker that Fig. 6 diagrammatically illustrates the first embodiment of the utility model is in trip positions Figure；

The broken section when breaker that Fig. 7 diagrammatically illustrates the first embodiment of the utility model is in closing position Figure；

Fig. 8 diagrammatically illustrates the front view of the crossbeam of the first embodiment of the utility model；

Fig. 9 diagrammatically illustrates the first stereogram of the crossbeam of the first embodiment of the utility model；

Figure 10 diagrammatically illustrates the second stereogram of the crossbeam of the first embodiment of the utility model；

Figure 11 diagrammatically illustrates the push-pull shaft of the first embodiment of the utility model and when reset button fits together Top view；

Figure 12 diagrammatically illustrates the B-B views in Figure 11；

Figure 13 diagrammatically illustrates the push-pull shaft of the first embodiment of the utility model and when reset button fits together Stereogram；

Figure 14 diagrammatically illustrates the stereogram of the push-and-pull reset assembly of the first embodiment of the utility model；

Figure 15 diagrammatically illustrates the top view of the lock of the first embodiment of the utility model；

Figure 16 diagrammatically illustrates the C-C views in Figure 15；

Push-and-pull resets when the breaker that Figure 17 diagrammatically illustrates the first embodiment of the utility model is in closing position The sectional view of component, hand tripping component and latch components；

Push-and-pull resets when the breaker that Figure 18 diagrammatically illustrates the first embodiment of the utility model is in trip positions The sectional view of component, hand tripping component and latch components；

Push-and-pull resets when the breaker that Figure 19 diagrammatically illustrates the first embodiment of the utility model is in test position The sectional view of component, hand tripping component and latch components；

Figure 20 diagrammatically illustrates the top view of the selftest module of the first embodiment of the utility model；

Figure 21 diagrammatically illustrates the front view of the selftest module of the first embodiment of the utility model；

Figure 22 diagrammatically illustrates the stereogram of the selftest module of the first embodiment of the utility model；

Figure 23 diagrammatically illustrates the stereogram of the pressing piece of the first embodiment of the utility model；

Figure 24 diagrammatically illustrates the front view of the pressing piece of the first embodiment of the utility model；

Figure 25 diagrammatically illustrates the top view of the electromagnetic drive component of the first embodiment of the utility model；

Figure 26 diagrammatically illustrates the D-D sectional views in Figure 25；

Figure 27 diagrammatically illustrates the stereogram of the electromagnetic drive component of the first embodiment of the utility model；

Figure 28 diagrammatically illustrates the side view of the electromagnetic drive component of the first embodiment of the utility model；

When the second elastic element that Figure 29 diagrammatically illustrates the first embodiment of the utility model is assembled on iron core Top view；

Figure 30 diagrammatically illustrates the E-E views in Figure 29；

When the second elastic element that Figure 31 diagrammatically illustrates the first embodiment of the utility model is assembled on iron core Stereogram；

Figure 32 diagrammatically illustrates the stereogram of the stent of the first embodiment of the utility model；

Figure 33 diagrammatically illustrates the front view of the hand tripping button of the first embodiment of the utility model；

Figure 34 diagrammatically illustrates the side view of the hand tripping button of the first embodiment of the utility model；

Figure 35 diagrammatically illustrates the first sliding block of the first embodiment of the utility model and the top view of the second sliding block；

Figure 36 diagrammatically illustrates the F-F sectional views in Figure 35；

Figure 37 diagrammatically illustrates the first sliding block of the first embodiment of the utility model and the stereogram of the second sliding block；

The breaker that Figure 38 diagrammatically illustrates the first embodiment of the utility model is in second game under trip status Portion's sectional view；

The breaker that Figure 39 diagrammatically illustrates the first embodiment of the utility model is in second game under "on" position Portion's sectional view；

The breaker that Figure 40 diagrammatically illustrates the first embodiment of the utility model pushes and pulls when being in hand tripping state The sectional view of reset assembly, hand tripping component and latch components；

Figure 41 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the second embodiment of the utility model The exploded view of buckle assembly；

Figure 42 diagrammatically illustrates the push-and-pull reset assembly, hand tripping component and lock of the second embodiment of the utility model The top view of buckle assembly；

Figure 43 diagrammatically illustrates the H-H sectional views in Figure 42；

Figure 44 diagrammatically illustrates the side view of Figure 42；

Figure 45 diagrammatically illustrates the stereogram of Figure 42；

Figure 46 diagrammatically illustrates the top view of the first sliding block of the second embodiment of the utility model；

Figure 47 diagrammatically illustrates the I-I views in Figure 46；

Figure 48 diagrammatically illustrates the side view of the first sliding block of the second embodiment of the utility model；

Figure 49 diagrammatically illustrates the stereogram of the first sliding block of the second embodiment of the utility model；

Figure 50 diagrammatically illustrates the top view of the crossbeam of the second embodiment of the utility model；

Figure 51 diagrammatically illustrates the K-K views in Figure 50；

Figure 52 diagrammatically illustrates the front view of the crossbeam of the second embodiment of the utility model；And

Figure 53 diagrammatically illustrates the stereogram of the crossbeam of the second embodiment of the utility model.

Wherein, above-mentioned attached drawing is marked including the following drawings：

10th, housing；11st, installation cavity；12nd, the first location hole；13rd, the second location hole；14th, the 3rd location hole；15th, form Hole；20th, reset assembly is pushed and pulled；21st, push-pull shaft；211st, outward flange；22nd, reset button；221st, positive stop lug boss；23rd, the first elasticity Element；30th, crossbeam；31st, the first ear block；311st, sliding slot；32nd, guide post；33rd, the second ear block；331st, the 3rd lozenges；40th, move and touch Head；41st, output conductor component；50th, static contact；51st, input conductor component；60th, latch components；61st, latch；611st, kidney slot； 612nd, inserting section；62nd, stent；621st, tubular type main body；622nd, first baffle；623rd, second baffle；624th, contact pin；63rd, iron core； 631st, stage portion；64th, electromagnetic coil；65th, the second elastic element；70th, master control borad；80th, selftest module；81st, pressing piece；811st, axis Head；82nd, self-test switch；90th, hand tripping component；91st, hand tripping button；911st, the first lozenges；92nd, the 3rd elasticity member Part；93rd, the first sliding block；931st, the second lozenges；932nd, connecting hole；94th, the 4th elastic element；100th, the second sliding block；101st, water Flat section；1011st, the 4th lozenges；1012nd, positioning column；102nd, vertical section；1021st, opening identification portion；1022nd, mark part is closed.

Specific embodiment

It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.

It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, " Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not Be necessarily limited to those steps clearly listed or unit, but may include not list clearly or for these processes, side The intrinsic other steps of method, product or equipment or unit.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

Referring to shown in Fig. 1 to Fig. 40, first embodiment according to the present utility model provides a kind of breaker, this practicality New breaker includes housing 10, drop-away reset device and selftest module 80.

With reference to shown in Fig. 1 to Fig. 7, installation cavity 11 is provided on the housing 10 in the present embodiment；Drop-away reset device is installed In installation cavity 11, which includes push-and-pull reset assembly 20, crossbeam 30, moving contact 40 and static contact 50, quiet Contact 50 is fixedly mounted in installation cavity 11 and positioned at the top of crossbeam 30, moving contact 40 is mounted on crossbeam 30, in actual work During work, push-and-pull reset assembly 20, which has, drives crossbeam 30 to move so that the combined floodgate that moving contact 40 and static contact 50 are in contact State (as shown in Figure 7) and the trip status (as shown in Figure 6) that moving contact 40 and static contact 50 is made to be separated, selftest module 80 are set It puts in the bottom of installation cavity 11, selftest module 80 includes self-test switch 82, and push-and-pull reset assembly 20 moves downward to open self-test Switch 82.

During actual use, the breaker in the present embodiment be connected to power supply and load between, breaker it is quiet Contact 50 is connected with input conductor component 51, and input conductor component 51 is connected with power cord, moving contact 40 and output conductor component 41 connections, output conductor component 41 are connected with load, and sensor module (not shown) and master control borad are provided on breaker 70, master control borad 70 is mounted on the bottom of installation cavity 11, when sensor module detection and master control borad 70 detect load circuit During fault-signal, push-and-pull reset assembly 20 performs trip action, and crossbeam 30 is driven to move, and then makes moving contact 40 and static contact 50 Phase separation, protects load circuit.

Breaker is provided with selftest module 80 in the present embodiment, before each use, by the work for pushing and pulling reset assembly 20 With, can drive selftest module 80 self-test switch 82 open breaker self-checking function, prevent breaker by accidental damage (such as Lightning stroke) it is undiscovered and continue to reset and use, it will be unable to provide effective safeguard protection to load circuit, improve in the present embodiment Breaker reliability and stability.

For the ease of carrying out fixed and positioned, the housing 10 in the present embodiment to the push-and-pull reset assembly 20 in the present embodiment Top be provided with the first location hole 12.

Shown in Figure 2, the push-and-pull reset assembly 20 in the present embodiment includes push-pull shaft 21, reset button 22, the first bullet Property element 23 and shrapnel (not shown).During installation, push-pull shaft 21 is vertically installed in installation cavity 11 and passes through crossbeam 30, the top of push-pull shaft 21 is located in the first location hole 12；Reset button 22 is fixedly mounted on the top of push-pull shaft 21；First bullet Property element 23 be set on push-pull shaft 21, and the first end of the first elastic element 23 is supported in the outside of housing 10, the first elasticity The second end of element 23 is supported in the bottom of reset button 22；Two pieces of shrapnels are vacantly arranged in installation cavity 11 and are located at horizontal stroke respectively The top at the both ends of beam 30.Preferably, the shrapnel in the present embodiment is inverted L shrapnel.

In order to ensure the motion credibility of push-pull shaft 21,21 run-off the straight of push-pull shaft or offset are prevented, in the present embodiment The bottom of installation cavity 11 be provided with the second location hole 13, the bottom of push-pull shaft 21 is mounted in the second location hole 13, at this point, logical The effect of the second location hole 13 and the first location hole 12 is crossed, effective /V can be carried out to the movement of push-pull shaft 21.

With reference to shown in Figure 12 and Figure 16, the push-and-pull reset assembly in the present embodiment further includes latch components 60, latch components 60 have by push-pull shaft 21 lock the latched position to be synchronized with the movement with push-pull shaft 21 and push-pull shaft 21 is unlocked with push-pull shaft 21 can be along the axial unlocked position that relative motion occurs of push-pull shaft 21.By the effect of latch components 60, push-and-pull can be coordinated Axis 21 carries out self-test, combined floodgate or dropout operation.

Push-pull shaft 21 in the present embodiment is provided with outward flange 211, latch components on the shaft part of 30 bottom of crossbeam 60 include lock 61 and electromagnetic drive mechanism.

Wherein, lock 61 is located at the lower section of crossbeam 30, is provided with kidney slot 611 on lock 61, push-pull shaft 21 is threaded through waist In shape hole 611, lock 61 has the first locking that the top for being stuck in outward flange 211 is moved to along the length direction of kidney slot 611 It position and is stuck in the second latched position of 211 bottom of outward flange and occurs along the depth direction of kidney slot 611 with push-pull shaft 21 With respect to the unlocked position of relative motion.Electromagnetic drive structures are drivingly connected to drive lock 61 along perpendicular to push-pull shaft with lock 61 21 direction moves to switch between the first latched position, the second locked.

The operation principle that the breaker in the present embodiment is specifically introduced with reference to above-mentioned structure is as follows：

State when breaker is in initial position connects breaker as shown in fig. 6, initial breaker is in trip positions It is connected between power cord and load circuit at this point, latching 61 bottoms for being located at outward flange 211 and positioned at the second latched position, pressing Reset button 22 promotes push-pull shaft 21 to move downward, and push-pull shaft 21 drives lock 61 synchronously to move downward, and starts selftest module 80 Work, after breaker self-test qualification, electromagnetic drive mechanism obtain it is electric 61 moments of lock is driven to thread off and be in the unlocked position, continue by Push-pull shaft 21 is pressed, push-pull shaft 21 can continue to move downwards along the kidney slot 611 on lock 61, until the outward flange of push-pull shaft 21 211 are moved to the bottom of lock 61, and electromagnetic drive mechanism driving lock 61 is switched to the first latched position, is resetted at this point, decontroling Button 22, push-pull shaft 21 drives lock 61, crossbeam 30 to move upwards under the active force of the first elastic element 23, until moving contact 40 contact with static contact 50 and are in "on" position, as shown in Figure 7.

During crossbeam 30 moves upwards, the shrapnel at its both ends can be caused to deform, when the sensor module of breaker When detecting that load circuit breaks down with master control borad 70, electromagnetic drive mechanism moment driving lock 61 is cut from the first latched position Unlocked position is changed to, at this point, along the depth direction of the kidney slot 611 on lock 61 relative motion can occur for push-pull shaft 21, in bullet Under piece effect, crossbeam 30 can be caused to move downward, and then lock 61 is driven to be moved downward along 21 axial direction of push-pull shaft；This When, the moving contact 40 on shrapnel end is separated with static contact 50, in trip status, load short circuits are protected, it is entire disconnected Road device returns to initial position.

Referring to shown in Figure 25 to Figure 31, the electromagnetic drive mechanism in the present embodiment includes stent 62, iron core 63, electromagnetic coil 64 and second elastic element 65.

Wherein, mounting hole and the contact pin 624 for being electrically connected with master control borad 70 are provided on stent 62；Iron core 63 is mounted on In mounting hole, lock 61 is connected with iron core 63, and specifically, latching 61 end set has along the axially extending of push-pull shaft 21 Fluting, the end set of iron core 63 have annular groove, and lock 61 is connected to by fluting in the annular groove of 63 end of iron core；Electricity Magnetic coil 64 is around being located on stent 62 and positioned at the periphery of iron core 63；Second elastic element 65 is set on iron core 63, and second The both ends of elastic element 65 are supported respectively on iron core 63 and stent 62 so that iron core 63 resets.

When electromagnetic coil 64 electric moment, to iron core 63 apply active force so that iron core 63 moves in mounting hole, and then Lock 61 is driven to realize unlock along being moved perpendicular to the direction of push-pull shaft 21, after 64 dead electricity of electromagnetic coil, iron core 63 is the It is resetted under the action of two elastic elements 65, and then lock 61 is driven to be switched to latched position from unlocked position, it is simple in structure, it is convenient for It realizes.

With reference to shown in Figure 25 and Figure 32, the stent 62 in the present embodiment includes tubular type main body 621, is arranged on tubular type master The first baffle 622 of the first end of body 621 and be arranged on tubular type main body 621 second end second baffle 623, wherein, iron Core 63 is mounted in tubular type main body 621, and the first end of iron core 63 protrudes from first baffle 622, convenient for being connected with lock 61, The second end of iron core 63 is provided with stage portion 631；Electromagnetic coil 64 is around the periphery for being located at tubular type main body 621；Second baffle 623 On be provided with Elastic buckle, the first end of the second elastic element 65 is fixed by Elastic buckle, the second of the second elastic element 65 End fixation is supported in stage portion 631.Together with two contact pins 624 are respectively welded with the both ends of electromagnetic coil 64.

Push-pull shaft 21 in the present embodiment works in coordination into different lock-out states with lock 61：

Lock 61 as shown in figure 17, is locked by push-pull shaft 21 in Z-direction upper limit position, hauls crossbeam 30 into its liter Position.At this moment moving contact 40 and static contact 50 are closed.

Lock 61 is in Z-direction centre position, and as shown in figure 18, crossbeam 30 is in decrease.At this moment moving contact 40 and static contact 50 are disconnected It opens.

Lock 61 as shown in figure 19, is locked and pushed by push-pull shaft 21 in Z-direction lower limit position, drives push-pull shaft 21 Selftest module 80 is pushed, starts test self-checking circuit.

Iron core 63 is equipped with 2 positions：When the electromagnetic coil 64 on master control borad 70 is powered, latch components 60 will generate Field of magnetic forece, iron core 63 are acted on by electromagnetic force, haul lock 61 thereon, are moved to 65 direction of the second elastic element of compression, into Enter the unlocked position of lock 61 and push-pull shaft 21.

After electromagnetic coil 64 powers off, electromagnetic force disappears, and iron core 63 will be subject to the effect of the second elastic element 65, head on iron core Lock 61 on 63, the direction extended to the second elastic element 65 return to initial position, into lock 61 and the lock of push-pull shaft 21 Positioning is put.

During real work, the push-pull shaft 21 in the present embodiment is downward in the state of being snapped component 60 and locking Movement carries out self-test to open self-test switch 82 to breaker.

With reference to shown in Fig. 1 to Fig. 7, Figure 20 to Figure 24, the selftest module 80 in the present embodiment further includes pressing piece 81, this is pressed Casting die 81 is mounted on the bottom of crossbeam 30 and self-test switch 82 is opened under the drive of push-pull shaft 21.

In the first embodiment of the utility model, pressing piece 81 is the test briquetting for the bottom for being set in push-pull shaft 21, It is simple in structure, it is easy to implement.Preferably, test the opposite of briquetting and be provided at both ends with spindle nose 811, the bottom of crossbeam 30 is provided with Two pieces of first opposite ear blocks 31 are provided with the sliding slot 311 being adapted with spindle nose 811 on first ear block 31.Crossbeam is transported about 30 In dynamic process, test briquetting slides in sliding slot 311, and stable structure is reliable.Preferably, the test briquetting in the present embodiment is Moulding, it is simple in structure, it is easy to implement and installs.It is flat H-type structure to test briquetting, is among it tablet, and there is a through hole at center, It is passed through for push-pull shaft 21.Its 2 end is arranged to symmetrical, is respectively 1 spindle nose 811 above end；It is respectively 1 below end A test pressure refers to, convenient for pressing self-test switch 82.

Test briquetting has 2 positions：One is only by the support force of self-test switch 82；Another is subject to 61 transmission of lock to push away The collective effect of the lower pressure of pulling shaft 21 and the support force of self-test switch 82.

Self-test switch 82 in the present embodiment includes self-test shrapnel, and one end of the self-test shrapnel is welded on master control borad 70, The other end is vacantly arranged on the bottom of pressing piece 81.Preferably, the free end of the self-test shrapnel in the present embodiment is provided with one and opens Slot, push-pull shaft 21 are plugged in the fluting, when push-pull shaft 21 pushes, and pressing piece 81 is driven to push, can steadily open self-test Switch 82, stable structure is reliable.

Referring to shown in Fig. 8 to Figure 10, shown in Figure 50 to Figure 53, in the second embodiment of the utility model, breaker The structure of structure and first embodiment is essentially identical, the difference is that not having to set test briquetting in the present embodiment, and directly exists The bottom of crossbeam 30 is provided with two pieces of first opposite ear blocks 31, and pressing piece 81 is cancelled.When crossbeam 30 moves downward, crossbeam The first ear block directly push self-test switch 82, to breaker carry out self-test, in this structure, can save in the first ear block 31 The upper structure that sliding slot 311 is set.

Certainly, in the other embodiment of the utility model, pressing piece 81 can also be arranged to other structures part, as long as It is other modes of texturing under the design of the utility model, within the scope of protection of the utility model.

Referring to shown in Fig. 8 to Figure 10, during crossbeam 30 pumps, in order to ensure that the movement of crossbeam 30 is steady Qualitative, the both ends of the crossbeam 30 in the present embodiment are both provided with guide post 32, are provided on the inner wall of installation cavity 11 and 32 phase of guide post The guide groove (not shown) of adaptation by guide post 32 and the cooperation guiding role of guide groove, can effectively prevent crossbeam 30 It steadily moves up and down under the drive of push-pull shaft 21 and latch components 60.

With reference to shown in Fig. 5, the periphery of the reset button 22 in the present embodiment is provided with positive stop lug boss 221, the first location hole The limiting slot (not shown) being adapted with positive stop lug boss 221 is provided on 12 inner wall, passes through positive stop lug boss 221 and /V The position-limiting action of slot can carry out /V so that reset button 22 is merely able to slide along limiting slot, convenient for use to reset button 22 Family uses and operates.Limiting slot in the present embodiment is the axially extending groove along push-pull shaft 21, is not in fixed reconciliation Lock situation that is unsuccessful or unlocking easily.

With reference to shown in Figure 17 to Figure 19, Figure 33 to Figure 40, the breaker in the present embodiment further includes hand tripping component 90, The hand tripping component 90 interrupts for manually moving contact 40 and static contact 50 being made to be separated convenient for further improving the present embodiment The stability in use of road device.

Hand tripping component 90 in the present embodiment includes hand tripping button 91, the 3rd elastic element 92, the first sliding block 93 and the 4th elastic element 94.

In order to install hand tripping component 90,10 upper end of housing in the present embodiment is additionally provided with the 3rd location hole 14, pacifies During dress, hand tripping button 91 is mounted in the 3rd location hole 14, the bottom of hand tripping button 91 is provided with the first wedge shape Face 911；It supports respectively on the top of housing 10 and hand tripping button 91 at the both ends of 3rd elastic element 92；First sliding block 93 In installation cavity 11, the second lozenges 931 being adapted with the first lozenges 911 is provided on the first sliding block 93, first Connecting hole 932 is provided on sliding block 93, is provided with inserting section 612 on lock 61, the both ends of the 4th elastic element 94 are supported respectively On the inner wall and the first side of the sliding block 93 away from push-pull shaft 21 of installation cavity 11.

During work, when 50 touching position of moving contact 40 and static contact (as shown in Figure 17, Figure 39), inserting section 612 plugs In connecting hole 932,91 the first lozenges of bottom 911 of hand tripping button and 931 phase of the second lozenges on the first sliding block 93 Cooperation, at this point, pressing hand tripping button 91, can cause the first sliding block 93 to be moved to the direction away from push-pull shaft 21, pass through Connecting hole 932 drives inserting section 612 to move, and then lock 61 is driven to be moved to the direction away from push-pull shaft 21 so that lock 61 Into unlocked position, at this point, crossbeam 30 moves downward under the action of shrapnel so that moving contact 40 and static contact 50 are separated, Realize hand tripping.

When moving contact 40 and static contact 50 are separated, inserting section 612 and connecting hole 932 are separated, hand tripping button 91 bottom is located at 93 top of the first sliding block and the first lozenges 911 and the second lozenges 931 are mutually separate, at this point, can not press Hand tripping button 91 prevents user's pneumatics hand tripping button 91.In this case, breaker is in dropout or self-test shape State (referring to shown in Figure 38, Figure 18 and Figure 19).

Hand tripping button 91 in the present embodiment sets a top, and the following of top sets a push rod, the root 2 of push rod Side respectively sets a gusset, and the afterbody of push rod sets an inclined wedge, i.e. the first lozenges 911；2 sides of hand tripping button 91 are respectively set One buckle so that hand tripping button 91 is limited after being mounted in the 3rd location hole 14, prevents from.

Breaker in the present embodiment is additionally provided with opening and closing instruction device, and opening and closing instruction device includes 100 He of the second sliding block Return unit is provided with opening identification portion 1021 on the second sliding block 100 and closes mark part 1022, and the upper end of crossbeam 30 is provided with two The second ear of block block 33 is provided with the 3rd lozenges 331 on second ear block 33, is provided on the second sliding block 100 and the 3rd lozenges 331 the 4th lozenges 1011 being adapted, during crossbeam 30 moves upwards, pass through the 3rd lozenges 331 and the 4th wedge The effect in shape face 1011 can promote the second sliding block 100 to be moved to the direction away from crossbeam 30.

Form hole 15 is provided on housing 10 in the present embodiment, when crossbeam 30 drives moving contact 40 and static contact 50 to connect When touching, the second sliding block 100 moves to show opening identification portion 1021 at form hole 15 under the driving of the second ear block 33；Work as horizontal stroke When the drive moving contact 40 of beam 30 and static contact 50 are separated, the second sliding block 100 resets display under the action of return unit and closes mark Knowledge portion 1022, it is simple in structure, it observes and uses convenient for user.

Preferably, translucent cover is provided on the form hole 15 in the present embodiment, is acted on, can effectively prevented by translucent cover External dust or impurity enters the inside of breaker, ensures the safety in utilization and reliability of breaker.

With reference to shown in Figure 36, the second sliding block 100 in the present embodiment includes horizontal segment 101 and is vertically set on horizontal ends The vertical section 102 of first end, opening identification portion 1021 and closing mark part 1022 are arranged on the top of vertical section 102, the 4th wedge Shape face 1011 is arranged on the second end of horizontal segment 101.

Preferably, the return unit in the present embodiment is resetting spring, and the both ends of resetting spring are supported respectively in installation cavity 11 Inner wall and the second sliding block 100 on.

It is highly preferred that the first end of horizontal segment 101 is provided with positioning column 1012, resetting spring is set in positioning column 1012 On, convenient for being positioned and being installed to resetting spring.

Further in conjunction with shown in Figure 17 to Figure 19, Figure 33 to Figure 40, the first sliding block 93 in the present embodiment is fixed at On two sliding blocks 100, the first sliding block 93 and the second sliding block 100 here or the parts being wholely set can also splits It is fixed together after setting, as long as other modes of texturing under the design of the utility model, the guarantor in the utility model Within the scope of shield, the 4th elastic element 94 and return unit are the same part.Setting with this configuration so that in the present embodiment Breaker can both realize opening and closing instruction function, and hand tripping function can be realized by having.

Certainly, in another embodiment of the utility model, can also the first sliding block 93 be only set and is not provided with second Sliding block 100 referring to shown in Figure 41 to Figure 53, at this point, different on crossbeam 30 set the second ear block 33, is simplified in the present embodiment The structure of breaker in the other embodiment of the utility model, can also be not provided with hand tripping component 90, and only set Instruction device is opened and closed, as long as other modes of texturing under the design of the utility model, the protection model in the utility model Within enclosing.

Preferably, the opening identification portion 1021 in the present embodiment and closing mark part 1022 are coating different colours or difference The mark part of word different pattern.

Opening and closing instruction device in the present embodiment is equipped with 3 positions：

One is as shown in figure 18, and crossbeam 30 is not in contact between decrease, slider end inclined wedge and crossbeam 30.Such as Figure 19 Spring thrust shown, that sliding block is installed on it stops at the Far Left of housing.At this moment, the home block green area as described in 17 Just it is directed at contact form hole 15.Namely represent, dynamic/static contact is off.

One is as shown in figure 17, and crossbeam 30 is in raise-position, and the 4th lozenges 1011 of 100 end of the second sliding block is by crossbeam 30 It promotes.As shown in figure 39, the 4th elastic element 94 of the second sliding block 100 compression rests on the right.At this moment, it is red to close mark part 1022 Just it is directed at contact form hole 15.Namely represent, moving contact 40 and static contact 50 connect in "on" position.

The other is moving contact 40 and static contact 50 connect under "on" position as shown in figure 39, hand tripping button 91 When being depressed, the second lozenges 931 set among the first sliding block 93 is by the first lozenges 911 of 91 bottom of hand tripping button It promotes, the first sliding block 93 compresses the 4th elastic element 94 and moves right.First sliding block 93 promotes the inserting section 612 of lock 61, makes Lock 61 moves right, and unlocked position is slided to by latched position.

Under trip status, as shown in figure 38, the slide unit of the first sliding block 93 is in the underface of hand tripping button 91, this Shi Ruguo pressing hand trippings button 91, pressure will be applied directly on the first sliding block 93 and housing 10 rather than the first sliding block 93 On the second lozenges 931 on, therefore hand tripping button 91 is prevented further to move down, it is unnecessary to prevent that user from carrying out Hand tripping operates.

Preferably, the first elastic element 23 in the present embodiment, the second elastic element 65, the 3rd elastic element 92 and Four elastic elements 94 are spring, simple in structure, are easy to implement.It certainly, can be in the other embodiment of the utility model Above-mentioned elastic element is arranged to resilient rubbber cushion or rubber ring, as long as other deformations under the design of my utility model Mode, within the scope of protection of the utility model.

Further in conjunction with shown in Fig. 1 to Figure 53, according to the above embodiments it is recognised that the breaker of the utility model includes Crossbeam 30, push-and-pull reset assembly 20, selftest module 80, latch components 60, hand tripping component 90 and opening and closing instruction device.For table It states conveniently, describes their assembly relation with cartesian coordinate axes, 30 length direction of crossbeam is Y-direction, pushes and pulls reset assembly 20 length directions are Z-direction, and 60 length direction of latch components is X-direction.Selftest module 80 is in the underface of crossbeam Z-direction；Hand Dynamic trip assembley therefor 90 and opening and closing instruction device are in the surface in latch components 60Z directions.

Crossbeam 30 can slide in 10 corresponding Z-direction guide groove of Shell of circuit breaker.Crossbeam 30 is provided with 2 positions；One Position is raise-position, and at this moment moving contact 40 is closed with static contact 50；Another position is decrease, at this moment moving contact 40 and static contact 50 It disconnects.

Push-pull shaft 21 can be slided in 10 corresponding Z-direction of Shell of circuit breaker, and lock 61 can be slided along Z-direction.Push-pull shaft 21 with Lock 61 is linked, and lock 61 is provided with 3 Z-direction positions：Its upper limit position is locked with push-pull shaft 21, at this moment crossbeam 30 into Enter raise-position (moving contact static contact closure)；Intermediate position is locked with push-pull shaft 21, and at this moment crossbeam 30 is in decrease (moving contact stationary contact Head disconnects)；Its lower limit position is locked push-pull shaft 21 and pushes, and drives the selftest module 80 under it.

When test briquetting is pressed downward by lock 61Z, self-test switch 82 promotes test circuit to turn on.

Iron core 63 can (X to) axial along it slide.63 head of iron core is enclosed in the Z-direction open slot of lock 61 so that two It can be linked between person.

Iron core 63 is equipped with 2 X to position：One position is by the work of the second elastic element 65 of 63 afterbody of iron core With promotion lock 61 makes lock 61 into lock-bit on push-pull shaft 21 close to push-pull shaft 21；Another location is powered for electromagnetic coil 64 When electromagnetic force effect, compress the second elastic element 65, pull lock 61 away from push-pull shaft 21, make lock 61 into solution lock-bit.

Opening and closing instruction device is equipped with 3 positions：One is when dynamic/static contact is off, only by installing it The upper spring driving between housing 10, X is to being adjacent to crossbeam 30；One is to work as dynamic/static contact in the closure state, by crossbeam 30 promote, and compress the spring being installed on it, and X is to sliding to away from 30 direction of crossbeam；The other is under dynamic/static contact closure state, quilt The hand tripping button 91 of pressure is promoted, and compresses the spring being installed on it, X is to separate 30 direction of crossbeam is slided to, until first Sliding block 93 will stir lock 61, and lock 61X is made to slide to unlocked position by locked position to sliding to away from 21 direction of push-pull shaft.

It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：

1st, in addition to failure protection function, lock function is also resetted.

A selftest module is provided with, when trip status carry out resetting operation, push-pull shaft is promoted by button, is pushed away by lock Dynamic test briquetting, test briquetting directly depress self-test switch, activation system self-test.Just allow reset after self-test qualification dynamic Make, otherwise locked.This with the first ear block on crossbeam compared with directly pressing testing piece, and after being completed, testing piece is by outer Power is small, relatively reliable；Testing piece can also minimize, lighting.

2nd, user experience perfect in shape and function.Such as：There is hand tripping, the machinery instruction for thering is contact to be opened and closed.

3rd, it is reliably high to reset dropout mechanical action.By the common structure of existing market, (one supports buckle releaser pull rod, another Head is hanging) it is changed to 2 cylinder /Vs；Can reduce to greatest extent dropout unlocking motion or reset lock out action failure can Energy.In addition, after tripping is threaded off, the first sliding block can withstand the pressing of hand tripping, prevent invalid hand tripping from operating.

4th, parts carry out Multifunctional design, reduce simple function part category so that entirely assemble compact, manufacture cost It is low.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.

Claims

1. a kind of breaker, which is characterized in that including：

Housing (10) is provided with installation cavity (11) on the housing (10)；

Drop-away reset device, the drop-away reset device are mounted in the installation cavity (11), and the drop-away reset device includes Push-and-pull reset assembly (20), crossbeam (30), moving contact (40) and static contact (50), the static contact (50) are fixedly mounted on institute It states in installation cavity (11) and positioned at the top of the crossbeam (30), the moving contact (40) is mounted on the crossbeam (30), institute Stating push-and-pull reset assembly (20) has drive crossbeam (30) movement so that the moving contact (40) and the static contact (50) The "on" position being in contact and the trip status that the moving contact (40) and the static contact (50) is made to be separated；

Selftest module (80), the selftest module (80) are arranged on the bottom of the installation cavity (11), the selftest module (80) Including self-test switch (82), the push-and-pull reset assembly (20) moves downward to open self-test switch (82).

2. breaker according to claim 1, which is characterized in that be provided with the first location hole at the top of the housing (10) (12), the push-and-pull reset assembly (20) includes：

Push-pull shaft (21), the push-pull shaft (21) are vertically installed in the installation cavity (11) and pass through the crossbeam (30), institute The top for stating push-pull shaft (21) is located in first location hole (12)；

Reset button (22), the reset button (22) are fixedly mounted on the top of the push-pull shaft (21)；

First elastic element (23), first elastic element (23) are set on the push-pull shaft (21), first elasticity The first end of element (23) is supported in the outside of the housing (10), and the second end of first elastic element (23) is supported in institute State the bottom of reset button (22)；

Shrapnel, two pieces of shrapnels are vacantly arranged in the installation cavity (11) and respectively positioned at the both ends of the crossbeam (30) Top.

3. breaker according to claim 2, which is characterized in that the bottom of the installation cavity (11) is provided with the second positioning Hole (13), the bottom of the push-pull shaft (21) are mounted in second location hole (13).

4. breaker according to claim 2, which is characterized in that the push-and-pull reset assembly further includes latch components (60), the latch components (60) have the locking locked the push-pull shaft (21) to be synchronized with the movement with the push-pull shaft (21) Position and the push-pull shaft (21) is unlocked with can be along the axial relative movement of the push-pull shaft (21) with the push-pull shaft (21) Unlocked position.

5. breaker according to claim 4, which is characterized in that the push-pull shaft (21) is located at the crossbeam (30) bottom Outward flange (211) is provided on the shaft part in portion, the latch components (60) include：

It latches (61), the lock (61) is located at the lower section of the crossbeam (30), and kidney slot is provided on the lock (61) (611), the push-pull shaft (21) is threaded through in the kidney slot (611), and the lock (61) has along the kidney slot (611) Length direction move to the top for being stuck in the outward flange (211) the first latched position and be stuck in the outward flange (211) Second latched position of bottom and opposite phase occurs along the depth direction and the push-pull shaft (21) of the kidney slot (611) To the unlocked position of movement；

Electromagnetic drive mechanism, the electromagnetic drive mechanism with it is described lock (61) be drivingly connected with drive it is described lock (61) along hang down Directly moved in the direction of the push-pull shaft (21) in first latched position, second latched position and the solution lock-bit Switch between putting.

6. breaker according to claim 5, which is characterized in that the breaker further includes master control borad (70), the master Control the bottom that plate (70) is mounted on the installation cavity (11)；The electromagnetic drive mechanism includes：

Stent (62) is provided with mounting hole and the contact pin for being electrically connected with the master control borad (70) on the stent (62) (624)；

Iron core (63), the iron core (63) are mounted in the mounting hole, and the lock (61) is connected with the iron core (63)；

Electromagnetic coil (64), the electromagnetic coil (64) is around being located on the stent (62) and positioned at the outer of the iron core (63) Week；

Second elastic element (65), second elastic element (65) is set on iron core (63), and second elastic element (65) both ends are supported respectively on the iron core (63) and the stent (62) so that the iron core (63) resets.

7. breaker according to claim 6, which is characterized in that the stent (62) includes tubular type main body (621), sets Put the first end of the tubular type main body (621) first baffle (622) and be arranged on the of the tubular type main body (621) The second baffle (623) at two ends, wherein,

The iron core (63) is mounted in the tubular type main body (621), and the first end of the iron core (63) protrude from it is described First baffle (622), the second end of the iron core (63) are provided with stage portion (631)；

The electromagnetic coil (64) is around the periphery for being located at the tubular type main body (621)；

Elastic buckle is provided on the second baffle (623), the first end of second elastic element (65) passes through the bullet Property buckle fix, the fixation of the second end of second elastic element (65) is supported in the stage portion (631).

8. breaker according to claim 2, which is characterized in that the selftest module (80) further includes pressing piece (81), The pressing piece (81) is mounted on the bottom of the crossbeam (30) and the self-test is opened under the drive of the push-pull shaft (21) It switchs (82).

9. breaker according to claim 8, which is characterized in that the pressing piece (81) is to be set in the push-pull shaft (21) the test briquetting of bottom.

10. breaker according to claim 9, which is characterized in that the opposite of test briquetting is provided at both ends with axis Head (811), the bottom of the crossbeam (30) is provided with two pieces of first opposite ear blocks (31), is set on the first ear block (31) There is the sliding slot (311) being adapted with the spindle nose (811).

11. breaker according to claim 8, which is characterized in that the bottom of the crossbeam (30) is provided with two pieces relatively The first ear block (31), the first ear block (31) forms the pressing piece (81).

12. breaker according to claim 8, which is characterized in that the breaker further includes master control borad (70), the master Control the bottom that plate (70) is mounted on the installation cavity (11)；The self-test switch (82) includes self-test shrapnel, the self-test shrapnel One end be welded on the master control borad (70), the other end is vacantly arranged on the bottom of the pressing piece (81).

13. breaker according to claim 1, which is characterized in that the both ends of the crossbeam (30) are both provided with guide post (32), it is provided with the guide groove being adapted with the guide post (32) on the inner wall of the installation cavity (11).

14. breaker according to claim 2, which is characterized in that the periphery of the reset button (22) is provided with /V Boss (221) is provided with the limiting slot being adapted with the positive stop lug boss (221) on the inner wall of first location hole (12).

15. breaker according to claim 5, which is characterized in that the breaker further includes hand tripping component (90), The hand tripping component (90) is used to that the moving contact (40) and the static contact (50) to be made to be separated manually.

16. breaker according to claim 15, which is characterized in that it is fixed that the upper end of the housing (10) is additionally provided with the 3rd Position hole (14), the hand tripping component (90) include：

Hand tripping button (91), the hand tripping button (91) are mounted in the 3rd location hole (14), described manual The bottom of trip push button (91) is provided with the first lozenges (911)；

3rd elastic element (92), the both ends of the 3rd elastic element (92) support respectively on the top of the housing (10) and On the hand tripping button (91)；

First sliding block (93), first sliding block (93) are mounted in the installation cavity (11), are set on first sliding block (93) The second lozenges (931) being adapted with the first lozenges (911) is equipped with, connecting hole is provided on first sliding block (93) (932), inserting section (612) is provided on the lock (61), when the moving contact (40) and the static contact (50) joint When, the inserting section (612) is plugged in the connecting hole (932), and first lozenges (911) and the described second wedge shape Face (931) is engaged；When the moving contact (40) and the static contact (50) are separated, the inserting section (612) and described Connecting hole (932) be separated, and the bottom of the hand tripping button (91) be located at first sliding block (93) top and it is described First lozenges (911) and second lozenges (931) are mutually separate；

The inner wall in the installation cavity (11) is supported at 4th elastic element (94), the both ends of the 4th elastic element (94) respectively On side of first sliding block (93) away from the push-pull shaft (21).

17. breaker according to claim 16, which is characterized in that form hole (15) is provided on the housing (10), The upper end of the crossbeam (30) is provided with two piece of second ear block (33), and the 3rd lozenges is provided on the second ear block (33) (331)；

Second sliding block (100) and return unit are provided with opening identification portion (1021) on second sliding block (100) and close mark Portion (1022) is provided with the 4th lozenges being adapted with the 3rd lozenges (331) on second sliding block (100) (1011)；

When the crossbeam (30) drives the moving contact (40) and the static contact (50) to be in contact, second sliding block (100) move to show the opening identification portion at the form hole (15) under the driving of the second ear block (33) (1021)；

When the crossbeam (30) drives the moving contact (40) and the static contact (50) to be separated, second sliding block (100) the display closing mark part (1022) is resetted under the action of the return unit.

18. breaker according to claim 17, which is characterized in that second sliding block (100) includes horizontal segment (101) With the vertical section (102) of the first end that is vertically set on the horizontal segment (101), the opening identification portion (1021) and the pass The top that mark part (1022) is arranged on the vertical section (102) is closed, the 4th lozenges (1011) is arranged on the level The second end of section (101).

19. breaker according to claim 18, which is characterized in that the return unit be resetting spring, the reset bullet It supports respectively on the inner wall and second sliding block (100) of the installation cavity (11) at the both ends of spring.

20. breaker according to claim 19, which is characterized in that the first end of the horizontal segment (101) is provided with fixed Position column (1012), the resetting spring are set on the positioning column (1012).

21. breaker according to claim 17, which is characterized in that first sliding block (93) is fixed at described On two sliding blocks (100), the 4th elastic element (94) and return unit are the same part.

22. breaker according to claim 17, which is characterized in that the opening identification portion (1021) and described close are marked Knowledge portion (1022) is coating different colours or the mark part of different literals different pattern.

23. breaker according to claim 17, which is characterized in that be provided with translucent cover on the form hole (15).