CN102543601B

CN102543601B - Intelligent operation device with automatic closing and time delay shunt trip functions and miniature circuit breaker thereof

Info

Publication number: CN102543601B
Application number: CN201110461978.4A
Authority: CN
Inventors: 张刘斗; 王农
Original assignee: ABB LV Installation Materials Co Ltd
Current assignee: ABB LV Installation Materials Co Ltd
Priority date: 2010-12-31
Filing date: 2011-12-31
Publication date: 2015-05-20
Anticipated expiration: 2031-12-31
Also published as: CN102568952A; CN102543601A; CN102568952B

Abstract

The invention discloses an economic small-volume intelligent operation device with automatic closing and time delay shunt trip (TS) functions and a TS (time delay shunt trip) type intelligent miniature circuit breaker which comprises the operation device and has the automatic closing function. The intelligent operation device comprises an automatic closing power device, a high-efficient multi-functional automatic closing power trajectory conversion component, an automatic closing function temporary shielding toggle switch component, a multi-functional logic control circuit board, a shunt trip device, an electricity getting spring, an electricity getting needle, an auxiliary contact point and a housing. The TS intelligent miniature circuit breaker with the automatic closing function, which is formed after combining the economic small-volume intelligent operation device with an N pole and an L pole of a standard MCB (miniature circuit breaker), has not only the functions of manual opening/closing, overload protection, over-current protection and the like of the ordinary circuit breaker, but also the functions of electric energy meter-controlled automatic opening (arrearage automatic opening), electric energy meter-controlled automatic closing (automatic closing after successful renewal), logic intelligent protection being in line with a safety pact and the like.

Description

The intelligent operation apparatus of automatic closing and time-lag shunted exciter function and miniature circuit breaker thereof

Technical field

The present invention relates to low voltage electrical equipment technical field, particularly relate to a kind of intelligent operation apparatus with automatic switching-in function and time-lag shunted exciter (TS) function of economical small size and comprise TS (time-lag shunted exciter dropout) the class intelligent micro-circuit breaker with automatic switching-in function of this operating means.

Background technology is along with country is to the expansion of the intelligentized updating such as electrical network and equipment thereof and transformation, especially current national grid company (SGCC) is about the development strategy that in intelligent grid, Every household has an ammeter---set up the customer information system of intelligent grid, realize that user power utilization situation gathers entirely, all standing, control in full.Target is in recent years, completed about 300,000,000 pieces intelligent electric meters buying and replacement, thus new requirement is proposed to the function of the TS class miniature circuit breaker that the supporting ammeter on Present Domestic market uses, " first the supporting circuit breaker of intelligent electric meter needs the correlation function with normal circuit breaker; Secondly, can realize owing electricity or the automatic brake separating function after accepting ammeter sub-gate signal, rear end electricity consumption can be forbidden; Again, continuing to pay dues successfully, after the intelligent electric meter very first time provides the permission signal of telecommunication, circuit breaker can realize closing function automatically, and the action of automatic closing should meet the intelligent selection automatic closing under secure protocol condition.Need the real current situation demand guaranteeing following domestic market: (1) economical simultaneously; (2) take up room little; (3) safe and reliable.

But, possess outside common MCB correlation function at the beginning of the table control TS class circuit breaker on domestic market, arrearage time delay automatic trip function can only be realized, can not meet the demand of supporting intelligent electric meter.According to the scheme of the automatic closing product on Present Domestic or overseas market+existing TS series products, can meet with assembled scheme small product size large, cost is higher, and does not possess the bottleneck of the shortcomings such as the intelligent selection automatic switching-in function meeting secure protocol.In sum, how to provide that a kind of volume is little, economical, structure are dexterous, TS (time-lag shunted exciter dropout) intelligent operation apparatus with automatic switching-in function of reliable in function and such intelligent micro-circuit breaker become this area technical problem urgently to be resolved hurrily.This intelligent micro-circuit breaker functionally, not only there are all functions of existing TS class miniature circuit breaker on Vehicles Collected from Market, and there is the function that can realize automatic closing after table control TS signal recuperation, meanwhile, what table controlled the automatic closing realized is the intelligent selection automatic closing meeting secure protocol.

Summary of the invention

It is simple that the technical problem that the present invention will solve is to provide a kind of structure, volume is little, the TS class intelligent miniature circuit breaker with automatic switching-in function of economical, reliable in function, the supporting actual functional capability demand meeting prepayment intelligent ammeter, greatly for electricity consumption user and power supply department provide conveniently, thus cost of human resources can be saved.

Further, this intelligent operation apparatus and TS class intelligent miniature circuit breaker economical thereof, volume is little, simple and reliable for structure, not only possesses the automatic switching-in function that current TS class MCB does not possess, and possesses the intelligent logical defencive function meeting secure protocol.

One aspect of the present invention provides a kind of TS class intelligent operation apparatus with automatic switching-in function, and this intelligent operation apparatus with automatic closing and time-lag shunted exciter function comprises: automatic closing power set, automatic closing power track transition components, automatic closing shielding toggle switch assembly, logic control circuit plate, shunt trip (as electromagnet assembly), power taking spring, power taking pin, auxiliary contact and housing;

Described automatic closing power set comprise actuator assembly, and described actuator assembly adopts two-chamber hermetically-sealed construction, comprises the first annular seal space and the second annular seal space, and described first annular seal space is used for sealed expansion medium, and described second annular seal space is used for seal grease class I liquid I;

When described automatic closing shielding toggle switch assembly is in ON state, insert electrical contact is conducted electricity in conduction ball spring assembly and inside/outside side, form circuit turn-on loop by inner conductive insert, inner side torsion spring, outside torsion spring, outer conductive insert, interior outer conductive ball, power spring, thus connect the electric power loop that automatic closing power is provided; When described automatic closing shielding toggle switch assembly is in OFF, conduct electricity insert connectorless for described conduction ball spring assembly and described inside/outside side, thus disconnect the electric power loop providing automatic closing power.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, automatic closing power set are used for heating inflating medium after powered up, the change in volume utilizing inflating medium phase transformation to produce provides controlled power, and controlled displacement occurs propulsion power parts; And after a loss of power, inflating medium cools and state before returning to phase transformation, and power part returns to initial position.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and automatic closing power set also comprise: push-rod assembly, assistance actuator reset and provide the extension spring of counter-force.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and push-rod assembly comprises push rod and power part; Wherein said power part embeds in the installing hole of described push rod, when described power part moves upward, can promote described push rod rectilinear motion stably.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and actuator assembly comprises shell, sealing ring, seal cartridge, grease-like liquid, swelling film, heating element, inflating medium, base.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and described two-chamber hermetically-sealed construction is, the first annular seal space is made up of the shell of described actuator assembly, base, swelling film; And second annular seal space primarily of described swelling film, seal cartridge, sealing ring, piston rod and shell upper end composition.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, the lower limb of the shell of actuator assembly is after spinning, produce plastic deformation, can be good at being adjacent on the inverted cone surface of base, thus inflating medium is sealed in the bottom of shell, form the lower end sealing of the first annular seal space.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, swelling film to be subject in the first annular seal space inflating medium when promoting upwards to turn over, grease-like liquid in the second annular seal space can be extruded, thus grease-like liquid promotion piston rod is moved upward.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and base adopts the sealed base of frustum shape.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and heating element is the heating element of positive temperature coefficient, thread or sheet heating resistor.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and heating element adopts built-in mode of heating.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and heating element adopts the structure of heating surface (area) (HS maximized two plate, annular, inscribed polygon, inscribed hexagon and resistance wrapping wire to construct.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and inflating medium is paraffin or mineral wax mixture.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and mineral wax mixture with the addition of insulation and has the particle of thermal conductive resin.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, particle be selected from diamond, diamond, alundum (Al2O3), zirconia, zinc oxide at least any one.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, described automatic closing power set also comprise powered device power taking pin, described powered device power taking pin comprises N line end and L line end, is each passed through described base and is electrically connected with described heating element.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, automatic closing power set also comprise: counter-force spring, being arranged on top and/or the both sides of described power part, making described power part return to initial position for providing the counter-force of recovery.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, the converts linear motion of moving component is movement in a curve by the contact site that contacts with moving component by automatic closing power track transition components, thus promotes rotary side board component and rotate and realize hanging closing operation; And after a loss of power, described moving component is returned to initial position under the effect of described automatic closing power set and torsion spring.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, automatic closing power track transition components comprises: have the handle of path of action, transmit straight-line trajectory and have push rod, outside reactive torsion spring, inner side reactive torsion spring, the interior outer conductive insert of path of action, the path of action of described push rod and the path of action of described handle engage each other.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and automatic closing shielding toggle switch assembly comprises: limiting bracket, deciliter handle, rotating shaft, conduction ball spring assembly, insulation ball spring assembly or deciliter handle insulation bulge-structure, conduction insert.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, power taking spring comprises L pole power taking stage clip and N pole power taking stage clip, go deep into the inlet wire near ports of the miniature circuit breaker of both sides respectively, and be pressed on inlet wire port a part, from end of incoming cables power taking.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, when front end system voltage be in normal range (NR) and the control logic prestored in logic control circuit plate allow automatic closing power set power taking time, there is provided power supply by L pole power taking stage clip and N pole power taking stage clip for automatic closing power set, realize automatic switching-in function.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, power taking pin comprises L pole power taking looper and N pole power taking looper, and one end of described L pole power taking looper and N pole power taking looper is deep in two power taking copper sheathings of described logic control circuit plate respectively.Preferably, a power taking copper sheathing is connected with the electromagnet assembly stitch realizing shunted exciter tripping function by the thyristor of the described logic control circuit plate of series connection, another power taking copper sheathing is connected directly between on another stitch of electromagnet assembly, form a controlled loop, L pole and the N pole power taking looper other end are deep into the lower end of miniature circuit breaker L pole, both sides and N pole respectively, be connected with lower port conducting position, thus realize the rear end power taking of MCB "on" position.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and the electromagnet assembly that logic control circuit plate assembles deeply is installed to the electromagnetic trip coil place of standard micro circuit breaker N pole; When subscriber arrearage, electric energy meter is by TS control port triggering signal, and the control logic circuit prestored in described logic control circuit plate will open controllable silicon, thus make negative electrode and anode conducting, and final trigger winding realizes shunted exciter tripping action.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and the output port of this intelligent operation apparatus comprises TS control port and auxiliary contact port; Wherein, described TS control port realizes the port of table control automatic brake separating/automatic closing, and namely described auxiliary contact port shows the port of breaker open operation or "on" position.

Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, TS control port is for receiving table control TS signal, when described TS signal port is unsettled or table controls loss of voltage, TS intelligent breaker realizes shunted exciter tripping, can not realize any type of feed motion; When the table control voltage resume of described TS signal port is normal, and circuit breaker separating brake last time reason is caused to be only that circuit breaker realizes automatic closing because the trip reason of TS port controlling.

Another aspect of the present invention provides a kind of intelligent micro-circuit breaker, and this automatic closing TS intelligent micro-circuit breaker comprises the intelligent operation apparatus with automatic closing and time-lag shunted exciter function in any one embodiment aforementioned.

In an embodiment of intelligent micro-circuit breaker provided by the invention, this intelligent micro-circuit breaker also comprises: standard micro circuit breaker L pole, standard micro circuit breaker N pole, multipole connection handle, dropout connector.

In an embodiment of intelligent micro-circuit breaker provided by the invention, this intelligent micro-circuit breaker also comprises: can be assembled to the position lock on multipole connection handle, close a floodgate and/or manual brake separating for limit manual.

In an embodiment of intelligent micro-circuit breaker provided by the invention, standard micro circuit breaker L can be extremely a pole or three poles.

In an embodiment of intelligent micro-circuit breaker provided by the invention; intelligent micro-circuit breaker not only has the manual divide-shut brake of common intelligent micro-circuit breaker, overload protection, overcurrent protection, isolated intelligent miniature circuit breaker function, and there is electric energy meter control automatic brake separating, arrearage automatic brake separating, electric energy meter control automatic closing, continue to pay dues after the automatic switching-in function of automatic closing.

In an embodiment of intelligent micro-circuit breaker provided by the invention; this intelligent breaker has the following virtual protection function meeting secure protocol; comprise: after short circuit, overload, manual brake separating; circuit breaker automatic switching-in function is set a fault mode and shields; when circuit breaker rear end, fault is removed; manually can close a floodgate and once remove fault setting, circuit breaker automatic switching-in function recovers.

In an embodiment of intelligent micro-circuit breaker provided by the invention, intelligent micro-circuit breaker, after table control separating brake, can realize automatic switching-in function when table control signal sends switching signal.

In an embodiment of intelligent micro-circuit breaker provided by the invention, not by under the mechanical lock lock-out state of position, intelligent micro-circuit breaker under any circumstance can by separating brake.

In an embodiment of intelligent micro-circuit breaker provided by the invention, intelligent micro-circuit breaker realizes automatic brake separating function in a case where, comprising: during overload protection, realizes protection automatic brake separating by the hot buckle release protection device of L pole MCB; During short-circuit protection, realize protection automatic brake separating by the magnetic buckle release protection device of L pole MCB; And ammeter is when providing TS sub-gate signal, realize automatic brake separating by the shunt trip of intermediate module intelligent operation apparatus.

In an embodiment of intelligent micro-circuit breaker provided by the invention, under any circumstance, the automatic brake separating of the trip free design of intelligent micro-circuit breaker all can not be prevented from; Even if stop separating brake handle separating brake artificial, the contact of intelligent micro-circuit breaker inside also can realize automatic disengagement.

The intelligent operation apparatus with automatic closing and time-lag shunted exciter function of confession of the present invention and comprise the automatic closing TS intelligent micro-circuit breaker that this has the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, simple and compact for structure, economical, reliable operation, not only achieve State Grid Corporation of China's New Generation of Intelligent Electro-metering to the demand of intelligent micro-circuit breaker function, and greatly for electricity consumption user and power supply department provide conveniently; After user is continued to pay dues by mobile phone or networking, oneself realizes automatic closing by intelligent micro-circuit breaker immediately; When user passes through to power supply department application, and after obtaining license, arriving within a period of time electricity consumption can be continued; Recover normally at supply power voltage, client can realize automatic closing electricity consumption the very first time, for power supply department saves the cost of manual closing operation.

Accompanying drawing explanation

(wherein, Fig. 1 a illustrates that this has the front view of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function to a kind of assembling schematic diagram with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that Fig. 1 illustrates that the embodiment of the present invention provides; Fig. 1 b illustrates that this has the left view of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function);

Fig. 2 illustrates the way to take power schematic diagram with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that the embodiment of the present invention provides;

(wherein, Fig. 3 a illustrates the general assembly drawing of this automatic closing TS intelligent micro-circuit breaker to a kind of automatic closing TS intelligent micro-circuit breaker structural representation with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that Fig. 3 illustrates that the embodiment of the present invention provides; Fig. 3 b illustrates the exploded view of this automatic closing TS intelligent micro-circuit breaker);

Fig. 4 illustrates the port definition schematic diagram of the automatic closing TS intelligent micro-circuit breaker that one embodiment of the invention provides;

Fig. 5 illustrates the outside drawing with the 3P+N structure of intelligent operation apparatus that one embodiment of the invention provides;

Invention Fig. 6 illustrates that (wherein, Fig. 6 a is the front view of automatic closing power set for the structural representation of an embodiment of automatic closing power set provided by the invention; Fig. 6 b is the cutaway view of automatic closing power set);

Fig. 7 illustrates the assembling schematic diagram of a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides;

Fig. 8 illustrates the decomposing schematic representation of the automatic closing shielding toggle switch assembly that the embodiment of the present invention provides;

Fig. 9 illustrates the structural representation of automatic closing provided by the invention shielding toggle switch element turns circuit;

Figure 10 illustrates the folding handle of automatic closing shielding toggle switch assembly that one embodiment of the invention provides and the assembling schematic diagram of ball spring assembly;

Figure 11 illustrates the fundamental diagram of the automatic closing shielding toggle switch assembly that one embodiment of the invention provides;

Figure 12 illustrates the assembly structure schematic diagram of the automatic closing shielding toggle switch assembly on intelligent micro-circuit breaker provided by the invention;

Figure 13 illustrates that a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides is in the structural representation shielding automatic closing state;

Figure 14 illustrates that a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides is in the structural representation starting automatic closing state;

Figure 15 illustrates that (wherein, Figure 15 a illustrates the overall installation diagram of multipole intelligent micro-circuit breaker locking device for the structural representation of a kind of intelligent micro-circuit breaker locking device provided by the invention; Figure 15 b illustrates the exploded view of multipole intelligent micro-circuit breaker locking device; Figure 15 c illustrates the overall installation diagram of one pole intelligent micro-circuit breaker locking device; Figure 15 d illustrates the exploded view of one pole intelligent micro-circuit breaker locking device);

Figure 16 illustrates the structural representation that the one pole intelligent micro-circuit breaker locking device that the embodiment of the present invention provides is not in the lock state;

Figure 17 illustrates the structural representation that the one pole intelligent micro-circuit breaker locking device that Figure 16 embodiment of the present invention provides is in the lock state.

Embodiment

With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.

(wherein, Fig. 1 a illustrates that this has the front view of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function to a kind of assembling schematic diagram with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that Fig. 1 illustrates that the embodiment of the present invention provides; Fig. 1 b illustrates that this has the left view of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function).

As shown in Figure 1 b, the intelligent operation apparatus 100 with automatic closing and time-lag shunted exciter function comprises: automatic closing power set 101, automatic closing power track transition components 102, automatic closing shielding toggle switch assembly 103, multi-functional logic control circuit pcb board 104, electromagnet assembly 105, power taking spring 106, power taking pin 107.This intelligent operation apparatus and TS class intelligent miniature circuit breaker economical thereof, volume is little, simple and reliable for structure, not only possesses the automatic switching-in function that current TS class MCB does not possess, and possesses the virtual protection function meeting secure protocol.

Wherein, automatic closing power set 101 are for heating inflating medium after powered up, and the change in volume utilizing inflating medium phase transformation to produce provides controlled power, and controlled displacement occurs propulsion power parts; And after a loss of power, inflating medium cools and state before returning to phase transformation, and power part returns to initial position.Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, automatic closing power set 101 comprise: push-rod assembly 218, actuator assembly 219, assistance actuator reset and provide counter-force extension spring 220 and the power taking pin (221,222) of counter-force.Embodiment after a while also will be further detailed automatic closing power set.

Automatic closing power track transition components 102 has the contact site contacted with moving component, and the converts linear motion of moving component is movement in a curve by it under the promotion of moving component, thus promotes rotary side board component and rotate and realize hanging closing operation; And after a loss of power, described moving component is returned to initial position under the effect of described automatic closing power set and torsion spring.Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and automatic closing power track transition components comprises: have the handle of efficient path of action, transmit straight-line trajectory and torsion spring 247, outside torsion spring 246 and interior outer conductive insert inside the push rod with efficient path of action; Wherein inner side torsion spring 247, outside torsion spring 246 are around on torsion spring rotating shaft 253.Embodiment after a while also will be further detailed automatic closing power track transition components.

When described automatic closing shielding toggle switch assembly 103 is in ON state, insert electrical contact is conducted electricity in conduction ball spring assembly and inside/outside side, form circuit turn-on loop by inner conductive insert, inner side torsion spring, outside torsion spring, outer conductive insert, interior outer conductive ball, power spring, thus connect the electric power loop that automatic closing power is provided; When described automatic closing shielding toggle switch assembly is in OFF, conduct electricity insert connectorless for described conduction ball spring assembly and described inside/outside side, thus disconnect the electric power loop providing automatic closing power.Provided by the invention have in an embodiment of the intelligent operation apparatus of automatic closing and time-lag shunted exciter function, and automatic closing shielding toggle switch assembly 103 comprises: limiting bracket, deciliter handle, rotating shaft, conduction ball spring assembly, insulation ball spring assembly, conduction insert.Embodiment after a while also will shield toggle switch assembly to automatic closing and be further detailed.

The control logic prestored in multi-functional logic control circuit pcb board 104 is at least one automatic switching-in functions such as automatic closings after realizing electric energy meter control automatic brake separating, arrearage automatic brake separating, electric energy meter control automatic closing, continuing to pay dues.

As shown in Figure 1a, power taking spring 106 comprises N pole power taking stage clip 106a and L pole power taking stage clip 106b, and power taking pin 107 comprises N pole power taking looper 107a and L pole power taking looper 107b.The housing front with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function shown in Fig. 1 a has three ports, be followed successively by automatic closing state output signal port and table control port (i.e. table control delayed releasing and automatic closing signal port) from the top down, other elongate strip opening is louvre; Wherein automatic closing state output signal Duan Kou auxiliary contact, be used to indicate the inner side contact separating brake/"on" position of both sides MCB; Table control port, for receiving table control TS signal, automatic closing separating brake port is when inhibit signal state, and intelligent micro-circuit breaker realizes automatic closing; When there is abnormal (as send arrearage signal, to be destroyed or other reason causes remote power feeding side's TS signal port to send power cut signal) in the signal showing control port TS holding wire, intelligent micro-circuit breaker automatic brake separating, forbid the electricity consumption of circuit breaker rear end, if TS signal recuperation is normal subsequently (electric energy meter send paying switching signal, holding wire be repaired), intelligent micro-circuit breaker realizes automatic closing at once.

Fig. 2 illustrates the way to take power schematic diagram with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that the embodiment of the present invention provides.

As shown in Figure 2, this power taking spring 106 with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function comprises N pole power taking stage clip 106a and L pole power taking stage clip 106b, go deep in the circular hole 201 and 202 of miniature circuit breaker MCB (N pole MCB 210 and L pole MCB 209) inlet wire near ports of both sides respectively, and to be pressed on inlet wire port a part (can be the electrical contacts near input terminal or input terminal), realize power taking from this end of incoming cables.When front end system voltage be in normal range (NR) and the control logic prestored in multi-functional logic control circuit pcb board allow automatic closing power set power taking time, there is provided power supply by L pole power taking stage clip and N pole power taking stage clip for automatic closing power set, realize automatic switching-in function.Wherein, circular hole 201 is positioned in N pole end of incoming cables mechanism 205, and circular hole 202 is positioned in L pole end of incoming cables mechanism 206.

This power taking pin 107 with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function comprises N pole power taking looper 107a and L pole power taking looper 107b, and one end of described L pole power taking looper and N pole power taking looper is deep in two power taking copper sheathings of described multi-functional logic control circuit pcb board respectively.Preferably, a power taking copper sheathing is connected with the electromagnet assembly stitch realizing shunted exciter tripping function by the thyristor of the described multi-functional logic control circuit pcb board of series connection, another power taking copper sheathing is connected directly between on another stitch of electromagnet assembly 211, form a controlled loop, L pole and the N pole power taking looper other end are deep into the lower end of miniature circuit breaker L pole, both sides and N pole respectively, be connected with lower port conducting position (such as MCB rear end power taking hole 203 and 204, wherein power taking hole 203 is positioned on N pole outlet port 207, power taking hole 204 is positioned at L pole and occurs on port 208), thus realize the rear end power taking of MCB "on" position.The electromagnet assembly that multi-functional logic control circuit pcb board assembles deeply is installed to the electromagnetic trip coil place of standard micro circuit breaker N pole, when subscriber arrearage, electric energy meter is by TS control port triggering signal, the control logic circuit prestored in pcb board will open controllable silicon, thus making negative electrode and anode conducting, final trigger winding realizes shunted exciter tripping action.

Fig. 3 illustrates a kind of automatic closing TS intelligent micro-circuit breaker structural representation with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function that the embodiment of the present invention provides; Wherein, Fig. 3 a illustrates the general assembly drawing of this automatic closing TS intelligent micro-circuit breaker; Fig. 3 b illustrates the exploded view of this automatic closing TS intelligent micro-circuit breaker.

As best shown in figures 3 a and 3b, 2.5P (1P+N) automatic closing TS intelligent micro-circuit breaker comprises: standard micro circuit breaker L pole 209, standard micro circuit breaker N pole 210, the intelligent operation apparatus 100 with automatic closing and time-lag shunted exciter function, multipole connection handle 212, dropout connector 213 and interpolar connection rivet or other interpolar connected mode.Wherein, the intelligent operation apparatus with automatic closing and time-lag shunted exciter function can be the intelligent operation apparatus with automatic closing and time-lag shunted exciter function described in any one embodiment aforementioned.

Fig. 4 illustrates the port definition schematic diagram of the automatic closing TS intelligent micro-circuit breaker that one embodiment of the invention provides.

As shown in Figure 4, in an embodiment of automatic closing TS intelligent micro-circuit breaker provided by the invention, the output port of intelligent operation apparatus comprises TS control port and auxiliary contact port; Wherein, namely auxiliary contact port 214 shows the port of breaker open operation or "on" position, is used to indicate the inner side contact separating brake/"on" position of both sides MCB; Namely TS control port 215 realizes the port showing control automatic brake separating/automatic closing, for receiving table control TS signal, when there is abnormal (as send arrearage signal or destroyed) in the signal showing control automatic brake separating/combined floodgate port TS holding wire, described TS signal port is unsettled or show control loss of voltage, TS intelligent breaker realizes shunted exciter tripping, and both sides MCB can not realize any type of feed motion; When the table control voltage resume of described TS signal port is normal, and circuit breaker separating brake last time reason is caused to be only that circuit breaker realizes automatic closing because the trip reason of TS port controlling.After automatic closing puts in place, logical circuit disconnects combined floodgate power set power supply automatically, and intelligent micro-circuit breaker source is in combined floodgate hold mode.Shown in figure, 216 is load connectivity port, and 217 is upper end power connector end mouth.

Fig. 5 illustrates the outside drawing with the 3P+N structure of intelligent operation apparatus that one embodiment of the invention provides.

The standard micro circuit breaker L of automatic closing TS intelligent micro-circuit breaker can be extremely a pole or three poles, as shown in Figure 5, three-phase and four-line 4.5P (3P+N) automatic closing TS intelligent micro-circuit breaker has three L pole MCB 209,0.5P has the intelligent operation apparatus 100 of automatic closing and time-lag shunted exciter function, and automatic switching-in function mask switch assembly 103 is arranged on this 0.5P to be had on the intelligent operation apparatus 100 of automatic closing and time-lag shunted exciter function.

First the automatic closing power set mentioned by the present invention are further described in detail.

Fig. 6 illustrates the structural representation of an embodiment of automatic closing power set provided by the invention; Wherein, Fig. 6 a is the front view of automatic closing power set; Fig. 6 b is the cutaway view of automatic closing power set.

As shown in Figure 6 a, automatic closing power set are used for heating inflating medium after powered up, and the change in volume utilizing inflating medium phase transformation to produce provides controlled power, and controlled displacement occurs propulsion power parts; And after a loss of power, inflating medium cools and state before returning to phase transformation, and power part returns to initial position.Specifically, these automatic closing power set 101 are primarily of push-rod assembly 218, actuator assembly 219, counter-force extension spring 220, powered device power taking pin (221,222) four part composition.Ideally, after power-off, the inflating medium encapsulated under vacuum condition can impel power part to return to initial position in the process of cooling curing, but in order to ensure the effect of restoring, and improve the efficiency recovered further, also extraneous additional force can be adopted to restore to impel power part, such as counter-force extension spring 220.Further, in embodiment provided by the invention, the reaction force produced by torsion spring.

Specifically, as shown in Figure 6 b, this push-rod assembly 218 is made up of push rod 223 and power part 224 (as piston rod); Wherein piston rod 224 embeds in the installing hole of push rod 223, along being cam locus on push rod, when piston rod 224 moves upward, can promote push rod 223 stably and moving, and push rod utilizes cam locus to promote intelligent micro-circuit breaker handle and rotates.

Actuator assembly 219 forms primarily of actuator shell 225, sealing ring 226, seal cartridge 227, grease-like liquid 228, swelling film 229, heating element 230, inflating medium 231, base 232.This actuator assembly adopts two-chamber hermetically-sealed construction, and wherein the first annular seal space is made up of actuator shell 225, base 232, swelling film 229.This actuator shell 225, can select the metal material with certain toughness and intensity; Its lower limb, after spinning (i.e. flow forming), produces plastic deformation, can be good at being adjacent on the inverted cone surface of base 232, thus inflating medium 231 is sealed in the bottom of shell 225, forms the lower end sealing of the first annular seal space.The upper end (upper part of inflating medium 231) of this first annular seal space is inflated film 229 and is sealed in shell 225, when inflating medium 231 becomes expansion of liquids from solid, promotes swelling film 229 and upwards overturns, expands.Wherein, base 232 can adopt bottom to be the frustum narrowing shape gradually, thus provides good sealed base.Heating element 230 is the heating element of positive temperature coefficient, PTC as known to those skilled in the art.

Inflating medium can select paraffin, and because paraffin is in the phase transition process by solid transition being liquid, volume can expand increase 15%, and will produce a powerful power, propulsion power parts outwards eject fast, a mobile rectilinear path that can calculate.In a particular application, paraffin be filled in cavity with liquid form under vacuum conditions, the surrounding of heating element (as PTC), when after PTC energising, a very large thermal capacity can be discharged instantaneously, thus melted rapidly by the paraffin of its surrounding and become liquid, and then there is predetermined straight-line displacement in propulsion power parts.

It should be noted that: according to instruction of the present invention, those skilled in the art can clearly know, in order to improve some characteristic of inflating medium, it is such as made to be applicable to broader temperature range or applied environment, can add some impurity to this inflating medium and carry out improvement in performance, thus formation take paraffin as the mixture of matrix.

Second annular seal space is primarily of swelling film 229, seal cartridge 227, sealing ring 213 and power part (as piston rod) 224 and shell 225 upper end composition, when swelling film 229 is subject to that in the first annular seal space, inflating medium 231 promotes upwards to turn over, grease-like liquid 228 in the second annular seal space can be extruded, thus make grease-like liquid 228 promote piston rod 224 to move upward.In the present invention, power part can be have the cylindrical rods of mating with hole in the middle of described sealing ring, as piston rod, is preferably cylindric bar.Those skilled in the art can clearly know according to instruction of the present invention, can choose the power part matched according to the shape of hole reserved in sealing ring.

The profile of described cavity can be the cylindrical, prismatic of hollow or taper type, or is that any one is suitable for the cavity geometry of machining.After the shape determining described cavity and size, sealing ring has the shape and size of mating with this cavity.Powered device power taking pin comprises N line end 221 and L line end 222, is each passed through base and is electrically connected with heating element.In automatic closing power set shown in Fig. 6 b, heating element (PTC) is fixedly installed on sealed base, and this PTC two lateral electrodes are drawn respectively by the power taking pin be embedded on base.

In a preferred embodiment of the present invention, at its most thick 2mm that is no more than of large arm of paraffin that PTC surrounding is covered with; And all parts are with being packaged in cavity under vacuum conditions.Cavity is made up of the good metal material of heat conduction or alloy material, adopts taper to revolve riveting knot structure and revolve riveting and be sealed on base bottom it.

The advantage of this two-chamber hermetically-sealed construction is adopted to include but not limited to: first, better inflating medium 231 effectively can be sealed in the first seal chamber, thus inflating medium can not be caused to be dissolved by the organic substance such as grease, sealing ring and cause leakage and expanding volume to decay; Secondly, make effectively to insulate between piston rod 224 and heating element 230 by the swelling film 229 of the first annular seal space; 3rd, swelling film 229 also can produce certain restoring force (counter-force) when upwards turning over, thus can recover initial condition by auxiliary pushing inflating medium; 4th, the inflating medium in the first annular seal space can adopt formation solid mode to load, and manufacturing process is simple and convenient; The movable sealing mode of the hydraulic radial shaft seal that the 5th, second annular seal space adopts, is totally independent of the first annular seal space, effectively ensure that sealing effectiveness further.

In one embodiment of the present of invention, these automatic closing power set second annular seal space adopt be back taper V-shaped seal ring; When piston rod 224 outwards moves, grease-like liquid 228 can be effectively sealed in the second annular seal space; When piston rod 224 resets, owing to adopting back taper V-shaped seal ring, its counter-force is less than the meeting of other sealing means.In other embodiments of the invention, O type can certainly be adopted, X-shaped sealing ring seals.

In order to effectively improve the movement velocity of piston rod 224 in limited space, actuator assembly 219 of the present invention have employed 3 innovative design: first, adopt built-in mode of heating (heating element 230 as shown in Figure 6 b), thus effectively the heat of heating element can be supplied to inflating medium 231 efficiently; Therefore adopt built-in mode of heating, under the same efficiency of heating surface, greatly can reduce the volume of these automatic closing power set, be conducive to the Miniaturization Design of device; The second, this heating element 230 adopts the PTC of two flat structure, and it effectively increases heating surface (area) (HS, thus in limited space, accelerate the rate of transformation of inflating medium by solid-liquid phase change; Three, the inflating medium 231 (phase change material) that the present invention adopts can be in paraffin, be mixed into insulation and the particle with high thermal conductivity coefficient (such as, diamond/synthetic diamond particles, the similar particles such as nano-aluminium oxide, zirconia, zinc oxide), thus greatly improve heat conduction efficiency, make inflating medium rapid phase transition, and then improve the movement velocity of automatic closing power set; 4th, based on the particle of this high-termal conductivity, when heating element stops heating, inflating medium heat radiation is accelerated; Therefore, this phase change material is also accelerated by the phase transformation of liquid to solid, is conducive to actuator Rapid reset.

In an embodiment of automatic closing power set provided by the invention, heating element 230 also can adopt thread, sheet heating resistor; The maximized design of heating surface (area) (HS can be made in shape as far as possible, as annular, the alveolate texture such as inscribed polygon, interior hexagon.

According to one embodiment of present invention, the mode that the heating element 230 that this actuator assembly 219 adopts directly is inlayed by injection moulding is fixed on base, thus ensure that the fixing that heating element is fixing; Two L poles 221 and N pole 222 are electrically connected with heating element 230 (as being embedded in the both sides of heating element 230), and are drawn out to the outside of these automatic closing power set through base, thus ensure that good conductive contact.

Automatic closing power set provided by the invention, after heating element 230 stops heating, phase change material 231 can As time goes on, be rapidly to outer heat radiation and occur by liquid state to solid-state phase transformation, push-rod assembly 218 quickly recovers to initial position under the effect of pull of vacuum and counter-force extension spring 220.

According to another embodiment of the invention, heating element 230, as PTC, can not be the global facility be built in inflating medium, but the combination of two or more parts, or be the structure of external.Specifically, multiple heating element forms the axially-aligned of combined heater block along cavity; According to instruction of the present invention, those skilled in the art can clearly know: the heater block that can also form at the heating element of axially-aligned two along the axially-aligned of cavity, or at many groups heating element of arranged radially to obtain more efficiently, more uniform heating effect.

According to another embodiment of the invention, heating element is distributed in the base bottom of heat-conducting type, and PTC is heated inflating medium by the effect of passing to of heat-conducting base; Or heating element is coated on the outer wall of cavity, heated by the inflating medium of outer wall to inside of this thermal conductivity.Heating element in these two kinds of execution modes can be a unitary construction, also can be the composite construction of multiple subassembly.According to instruction of the present invention, those skilled in the art can clearly know, and heating element are arranged at bottom or outer wall and are conducive to increasing cavity and hold the space of inflating medium, thus when providing the powered of identical stroke, reduce the height of automatic closing power set, conserve space.

Need to illustrate, those skilled in the art can clearly know according to instruction of the present invention: can also simultaneously axially with heating element is set in the radial direction, the compound mode of its various arrangement all can realize inflating medium high-efficiency heating effects such as paraffin.

Fig. 7 illustrates the assembling schematic diagram of a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides.

As shown in Figure 7, for this automatic closing shielding toggle switch assembly, when it is in ON state, conduction ball spring assembly and the electrical contact of conduction insert, thus form circuit turn-on loop; When automatic closing shielding toggle switch assembly is in OFF, conduction ball spring assembly does not contact with conduction insert electricity, thus open circuit.When open circuit, insulation ball spring contacts with conduction insert.

Fig. 8 illustrates the decomposing schematic representation of the automatic closing shielding toggle switch assembly that the embodiment of the present invention provides.

As shown in Figure 8, this automatic closing shielding toggle switch assembly 103 comprises: limiting bracket 236, deciliter handle 235, rotating shaft 234, conduction ball spring assembly, insulation ball spring assembly, conduction insert 233.

Wherein, deciliter handle 235 is assemblied in limiting bracket 236 inner chamber by rotating shaft, and the installing hole arranged in deciliter handle is distributed in the surrounding of rotating shaft 234 symmetrically.

Conduction insert 233 comprises left and right conduction insert, is embedded in the left and right sides of limiting bracket 236 intracavity bottom respectively.

Conduction ball spring assembly comprises conduction ball 239 and power spring 237, and described insulation ball spring assembly comprises insulation ball 238 and spring 237 (this spring can adopt the same or similar electric conducting material with power spring); Preferably, the insulation projection being arranged on deciliter handle corresponding position or boss also directly can be adopted to substitute insulation ball spring assembly, reached the object that structure is more succinct.Conduction ball spring assembly and insulation ball spring assembly are installed in installing hole; Wherein, conduction ball spring assembly is installed in deciliter installing hole of handle bottom, contacts to make itself and left and right conduct electricity insert when stirring deciliter handle, thus turning circuit.

Fig. 9 illustrates the structural representation of automatic closing provided by the invention shielding toggle switch element turns circuit.

As shown in Figure 9, left and right conduction insert 233 is embedded in the left and right sides of limiting bracket inner chamber respectively, lays conduction ball spring assembly 238 in the installing hole of deciliter handle 235 bottom, for forming the loop of a conducting with conduction ball spring assembly.

Figure 10 illustrates the folding handle of automatic closing shielding toggle switch assembly that one embodiment of the invention provides and the assembling schematic diagram of ball spring assembly.

As shown in Figure 10, in an embodiment of automatic closing shielding toggle switch assembly provided by the invention, four symmetrical installing holes are provided with in its folding handle, wherein the installing hole of foot is for assembling conduction ball spring assembly, insulation ball spring assembly 240 (as insulation ball 238 and spring 237) is laid, for cutting off current circuit in its excess-three installing hole.Adopt the structure of ball spring mainly in order to ensure ball can all the time with conduction insert close contact, specifically: the two ends of the installing hole of deciliter handle 235 adopt illustrated ball concave structure, and (wherein one end feature is directly being formed when making part, the feature of the other end is after assembling spring ball assembly, ultrasonic bonding is adopted to be processed to form), both sides ball can not be come off from deciliter handle hole, under spring force, ensure that ball is close to insert all the time simultaneously.Multiple ball spring assembly is symmetrical arranged, and is conducive to the steady rotation ensureing rotary handle.

According to instruction of the present invention, those skilled in the art can clearly know: can need to increase or reduce insulation ball spring assembly according to practical application, a conduction ball spring assembly being only set even in described folding handle, making it contact with the conduction insert of the left and right sides or not contact to realize the circuit loop that is turned on or off by rotating this conduction ball spring assembly.

Figure 11 illustrates the fundamental diagram of the automatic closing shielding toggle switch assembly that one embodiment of the invention provides.

As shown in figure 11, stir the folding handle 235 of this micromechanical switch, make it be in the position of ON, now because conduction ball spring assembly 241 (being positioned at the survey that Figure 11 shows conduction insert 233) is access in conduction insert 233 both sides, left and right, form a conducting loop; When wishing open circuit, folding handle is toggled it to the position of OFF, conduction ball spring assembly departs from the conduction insert of the left and right sides, now with conduction insert close contact be the ball spring assembly 240 that insulate, galvanic circle is disconnected.Be installed in folding handle owing to there being four groups of ball spring assemblies, certain three groups of insulation ball spring assemblies can be substituted by the insulation projection or boss being arranged on deciliter handle corresponding position, reach the object that structure is more succinct, stationarity when ensure that folding rotatable handle and good contact performance.

Figure 12 illustrates the assembly structure schematic diagram of the automatic closing shielding toggle switch assembly on automatic closing TS intelligent micro-circuit breaker provided by the invention.

As shown in figure 12, automatic closing shielding toggle switch assembly 103 both sides on automatic closing TS intelligent micro-circuit breaker rotate side plate 242, be fixed on rotating shaft 244, conductive mosaic 233 and calcium rotating shaft 244 electrical contact, manual/auto toggle switch assembly 243 (or being called switch assembly) is provided with protruding deciliter handle, conduction ball spring assembly and insulation ball spring assembly.When this automatic closing shielding toggle switch assembly is used for multipole intelligent micro-circuit breaker, this multipole intelligent micro-circuit breaker is provided with multipole connecting handle 213, in order to shield with described automatic closing parts such as stirring intelligent micro-circuit breaker assembly.When stirring switch assembly to auto state, this toggle switch element turns circuit, and will the power set access power circuit of automatic switching-in function be performed, now this automatic closing TS intelligent micro-circuit breaker realizes automatic switching-in function.Such as due to when subscriber arrearage, TS holding wire are destroyed or other reason causes the supplier of electricity TS signal port of Long-distance Control to send power cut signal, multi-functional logic control circuit is after receiving this signal, the thyristor of shunt trip series connection can be opened, thus drive the release lever action of electromagnetic assembly, promote mechanical unlocking tripping operation inside N pole, the tripping operation of final driving whole automatic closing TS intelligent micro-circuit breaker is threaded off, forbid rear end electricity consumption, realize the table control shunted exciter tripping function of intelligent micro-circuit breaker.

Figure 13 illustrates that a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides is in the structural representation shielding automatic closing state.

As shown in figure 13, when stirring this automatic closing shielding toggle switch assembly (switch assembly) 103 to manual mode, the power set of automatic switching-in function are disconnected power supply, and a whole set of folding handle only closes a floodgate for realizing manually; Now, this intelligent micro-circuit breaker does not possess automatic switching-in function (automatic switching-in function conductively-closed), and only uses as general T S intelligent micro-circuit breaker, can available protecting intelligent micro-circuit breaker back-end client safety; And the torsion spring in automatic closing power track transition components not only plays conducting and open circuit loop, the function of shielding automatic closing, also certain reset force is produced to the switch cam handle in automatic closing power track transition components, effectively can prevent intelligent micro-circuit breaker from occurring middle-end fault, and booster action is played to the reset of automatic closing power set.

Figure 14 illustrates that a kind of automatic closing shielding toggle switch assembly that the embodiment of the present invention provides is in the structural representation starting automatic closing state.

As shown in figure 14, when automatic closing shielding toggle switch assembly is in startup auto state position, due to conduction insert 233 short circuit that rotation side plate 242 both sides are inlayed by the conduction ball spring assembly of automatic closing shielding toggle switch assembly, both sides conduction insert by being fixed on outside torsion spring 246 on torsion spring rotating shaft 253 and inner side torsion spring 247 by the automatic switching-in function signal conduction on pcb board, thus makes this automatic closing TS intelligent micro-circuit breaker possess automatic switching-in function.

When due to subscriber arrearage, when TS holding wire is destroyed or other reason causes remote power feeding side's TS signal port to send power cut signal, the circuit (abbreviation smart circuit) that multi-functional logic control circuit pcb board prints is after receiving this signal, the thyristor of shunt trip series connection can be opened, drive electromagnetic coil assembly action, release lever in electromagnetic coil assembly promotes mechanical unlocking tripping operation inside N pole, thus the whole automatic closing TS intelligent micro-circuit breaker tripping operation of final driving is threaded off, register in the smart circuit of now this automatic closing TS can be remembered this due to TS signal and cause the trip status of intelligent micro-circuit breaker, as intelligent micro-circuit breaker can realize automatic closing necessary condition (other form as: overload, short circuit, the intelligent micro-circuit breaker separating brake that manual brake separating etc. cause is by the troubleshooting as automatic closing, namely the fault mode that can not realize automatic closing is set as).

When TS signal is presented a switching signal, smart circuit can by extracting the intelligent micro-circuit breaker trip reason last time signal recorded in register, be judged as due to TS signal port send the de-mouth reason that power cut signal causes time, and now automatic switching-in function connects smart circuit by automatic closing shielding toggle switch assembly (conduction insert and torsion spring), smart circuit can trigger an automatic closing signal to the actuator of automatic closing power set, the time of a power supply T1, (T1 was that switch knob setting in motion is counted, time to inside contact contact), now actuator piston rod outwards ejects, promote push rod linear movement, and by automatic closing power track transition components (push rod engages with the cam curve track of rotating cam handle), rectilinear motion is steadily converted into efficiently the rotary motion of handle, promote both sides MCB eventually through multipole connection handle and carry out feed motion, when the moving contact of both sides MCB internal mechanism contacts in a flash with static contact seat, the required electric current of MCB rear side end mouthfeel, can by L/N pole power taking pin by the Signal transmissions of MCB moving contact and static contact seat conducting to smart circuit, smart circuit can stop T1 power-on time thus, then provides drive unit short time delay power-on time T2 (switch knob, from the moment timing of internal mechanism contact, is rotated in place the time of end completely to handle).Can this delay duration be set according to concrete intelligent micro-circuit breaker, guarantees that MCB handle can promote to hang completely to be incorporated into position by passive power apparatus.After T2 short time delay, smart circuit cuts off power set and powers, subsequently, power set can drive push rod to be returned to original position gradually under the booster action of counter-force extension spring, prepare the work of next automatic closing, intelligent micro-circuit breaker now achieves automatic closing work, and remains on closing position.

Combined floodgate condition due to any automatic switching-on device is all realize under the condition meeting safety regulations, therefore under the intelligent micro-circuit breaker of the present invention condition that and if only if after the solenoid of TS control is threaded off, and when on handle, mask switch is in automated location, logical circuit just allows, when TS signal port is subject to triggering automatic closing triggering signal, successfully to realize the action of intelligent micro-circuit breaker automatic closing.So when intelligent micro-circuit breaker is due to the reason separating brake such as manual, overload protection, short-circuit protection; be judged as fault mode immediately; automatic closing can not be realized immediately when TS signal is subject to automatic closing triggering signal; only normal in the energising of intelligent micro-circuit breaker front end; rear end does not have fault; and when carrying out a closing by hand, could this fault mode be removed, enter next round TS separating brake and automatic closing periodic duty.

The control logic prestored in multi-functional logic control circuit pcb board is for automatic switching-in functions such as automatic closings after realizing overcurrent protection, overload protection, electric energy meter control automatic brake separating, arrearage automatic brake separating, electric energy meter control automatic closing, continuing to pay dues.Automatic closing TS intelligent micro-circuit breaker provided by the invention has following logic function:

1 ,/disjunction circuit function can be connected:

1) closing function: be divided into closing by hand, automatic closing two kinds;

1. closing by hand function:

Usually, under separating brake intelligent micro-circuit breaker is not mechanically locked state (condition that safety regulations allows), closing by hand can be realized by manual operation.The mode realizing closing by hand is the same with common MCB to be realized by both sides operating mechanism.

Consider the protection of personal safety in actual state, this automatic closing TS intelligent micro-circuit breaker, by the Logic Circuit Design of intermediate module, in a case where, can not carry out automatic closing operation, must carry out closing by hand operation.

The condition must carrying out closing by hand comprises:

After manual brake separating, must closing by hand.Under normal circumstances, when keeping in repair intelligent micro-circuit breaker backend load circuit, meeting manual brake separating, for guaranteeing backend load place personal safety, intelligent micro-circuit breaker does not now support automatic switching-in function.

After overload protection, intelligent micro-circuit breaker comes into operation again, must closing by hand.After overload protection; open pipe backend load circuit may also be in abnormal situation, and in order to avoid property loss and ensuring personal safety, intelligent micro-circuit breaker does not now support automatic switching-in function; after needing closing by hand once, intelligent micro-circuit breaker automatic switching-in function is just supported.

After overcurrent protection, intelligent micro-circuit breaker comes into operation again, must closing by hand.Reason is with overload protection situation.

Stir automatic closing mask switch assembly to manual mode, after relieving automatic switching-in function, must closing by hand.User under special circumstances, for guaranteeing safety, need temporarily to remove automatic switching-in function, now only need the intelligent miniature miniature circuit breaker of manual toggle automatic closing TS intelligent micro-circuit breaker top barrier automatic switching-in function to manual mode, automatic switching-in function is removed, and intelligent micro-circuit breaker closes a floodgate must closing by hand.

2. automatic switching-in function:

The automatic switching-in function of intelligent micro-circuit breaker is the power that the automatic closing power set having expansion piston principle in the intelligent operation apparatus with automatic closing and time-lag shunted exciter function by centre provide, the rotation side plate promoting automatic closing power track transition components rotates around central shaft, connection handle can be driven owing to rotating side plate to rotate around central shaft together around central shaft rotation, the final both sides MCB that drives realizes automatic closing action.

The intelligent operation apparatus with automatic closing and time-lag shunted exciter function, from the mode of power taking of end of incoming cables, automatic closing TS intelligent micro-circuit breaker both sides and the design of logical circuit, will realize automatic switching-in function in following condition.

After guaranteeing the position that automatic closing shielding toggle switch is in automatically-starts, the realization condition of this automatic switching-in function comprises:

After table control separating brake, when table control TS signal (automatic closing separating brake port) is in inhibit signal state, intelligent micro-circuit breaker realizes automatic closing.When there is abnormal (send arrearage signal or destroyed) in the signal showing control separating brake/combined floodgate port (TS) holding wire, intelligent micro-circuit breaker automatic brake separating, if TS signal recuperation normal (electric energy meter sends paying switching signal or holding wire is repaired) subsequently, intelligent micro-circuit breaker realizes automatic closing at once, after automatic closing puts in place, logical circuit disconnects combined floodgate power set power supply automatically, and intelligent micro-circuit breaker source is in combined floodgate hold mode.

2) separating brake function: be divided into manual brake separating, automatic brake separating etc.;

1. manual brake separating: intelligent micro-circuit breaker, not by under the state of position mechanical caging, in any case, all should be disconnected by manual brake separating.Realize manual brake separating principle with common MCB intelligent micro-circuit breaker.

2. automatic brake separating: (automatic brake separating condition and implementation)

During overload protection, intelligent micro-circuit breaker can realize protection automatic brake separating by the buckle release protection device of L pole MCB;

During short-circuit protection, intelligent micro-circuit breaker can realize protection automatic brake separating by the buckle release protection device of L pole MCB;

Ammeter provide TS sub-gate signal (as arrearage or TS holding wire destroyed time), the shunt trip by intelligent micro-circuit breaker with the intelligent operation apparatus of automatic closing and time-lag shunted exciter function realizes automatic brake separating;

For guaranteeing equipment and personal safety; under any circumstance; the above-mentioned trip free design automatic brake separating of this automatic closing TS intelligent micro-circuit breaker all can not be prevented from (stoping separating brake handle even if artificial; intelligent micro-circuit breaker inside contact all can realize automatic disengagement, to protect).

The said goods protection automatic brake separating function can be increased and decreased in multifunction module according to client's actual demand.

3) automatic switching-in function can conductively-closed.The intelligent miniature miniature circuit breaker of manual toggle automatic closing TS intelligent micro-circuit breaker top barrier automatic switching-in function to manual mode, automatic switching-in function conductively-closed.

2, position lock function.Automatic closing TS intelligent micro-circuit breaker is the same with common MCB intelligent micro-circuit breaker has position lock function, and position lock can limit manual close a floodgate and manual brake separating.

When keeping in repair rear end equipment or load, usually need to disconnect intelligent micro-circuit breaker to ensure maintenance personal's safety; In order to ensure the safety of rear end maintenance personal further, the infringement preventing from the intelligent micro-circuit breaker of this disconnection to be misused (by closing a floodgate) may bringing, needs to provide locking device to avoid dangerous and occurs.And for needing to keep "on" position (as in emergency circumstances to the constrained feed of illumination etc.), same hope can carry out state locking, thus prevent the intelligent micro-circuit breaker of this combined floodgate from being opened and power-off by wrong diagnosis.In addition, for adapting to the application of the special screnes such as mine down-hole, especially install the application needs of larger wire diameter padlock additional, invention further provides the intelligent operation apparatus with automatic closing and time-lag shunted exciter function and automatic closing TS intelligent micro-circuit breaker with intelligent micro-circuit breaker locking device.

Figure 15 illustrates the structural representation of a kind of automatic closing TS intelligent micro-circuit breaker locking device provided by the invention; Wherein, Figure 15 a illustrates the overall installation diagram of multipole automatic closing TS intelligent micro-circuit breaker locking device; Figure 15 b illustrates the exploded view of multipole automatic closing TS intelligent micro-circuit breaker locking device; Figure 15 c illustrates the overall installation diagram of one pole automatic closing TS intelligent micro-circuit breaker locking device; Figure 15 d illustrates the exploded view of one pole automatic closing TS intelligent micro-circuit breaker locking device.

As shown in fig. 15 a, this intelligent micro-circuit breaker locking device 108 is by putting down lock slide 248, open anti-dynamic revolving door 249, there is provided the hole of the locking holding lockset (owing to adopting metal door frame structure, therefore, larger spatial accommodation can be provided, steel wire doorframe 251 can be embedded on high handle bracket 250, also helicitic texture can be adopted, the modes such as turnup structure, interference fit or bayonet lock are fixed on high handle bracket), thus behind lockset locking hole, stop intelligent micro-circuit breaker action; As intelligent micro-circuit breaker closes a floodgate and after being locked, this intelligent micro-circuit breaker locking device can prevent this intelligent micro-circuit breaker by artificial separating brake; Same, after intelligent micro-circuit breaker separating brake is also locked, this intelligent micro-circuit breaker locking device can prevent this intelligent micro-circuit breaker from artificially being closed a floodgate, thus avoids the accident that meets accident during such as maintenance operation.

Specifically, Figure 15 b illustrates the exploded view of this intelligent micro-circuit breaker locking device; Wherein intelligent micro-circuit breaker locking device 108 comprises: high handle lock bracket 250, lock slide 248, anti-dynamic revolving door 249, metal door frame 251 (can adopt the material meeting some strength requirement, as wire quality manufactures this metal door frame).This steel wire doorframe is embedded on high handle bracket, under the situation of not wearing padlock, anti-dynamic revolving door can on the left of steel wire doorframe vertical shaft rotary 90 degree, the upper and lower vibration of transverse axis limiting door frame on the upside of steel wire doorframe.

Figure 15 c and 15d respectively illustrates the structure similar with Figure 15 a and 15b, but because it is as one pole automatic closing TS intelligent micro-circuit breaker locking device, therefore, except there are all parts of the intelligent micro-circuit breaker locking device 108 similar with multistage intelligent micro-circuit breaker locking device, it also has the single modulus connecting handle 252 (one pole connection handle) through high handle lock bracket, for this intelligent micro-circuit breaker locking device is fixed on one pole MCB.

Figure 16 illustrates the structural representation that the one pole automatic closing TS intelligent micro-circuit breaker locking device that the embodiment of the present invention provides is not in the lock state.

For the intelligent micro-circuit breaker locking device that one pole intelligent micro-circuit breaker uses, as shown in figure 16, this intelligent micro-circuit breaker locking device is assembled on this one pole intelligent micro-circuit breaker by increasing single modulus connecting handle, its anti-dynamic revolving door is finally closed, and lock slide is in the state reclaiming position; Therefore, this intelligent micro-circuit breaker locking device can use as the high handle of intelligent micro-circuit breaker.

Figure 17 illustrates the structural representation that the one pole automatic closing TS intelligent micro-circuit breaker locking device that Figure 16 embodiment of the present invention provides is in the lock state.

As shown in figure 17, after putting down lock slide, lock slide withstands the V-type groove of intelligent micro-circuit breaker neck.Now, open anti-dynamic revolving door (exposing the hole that metal door frame provides), lock slide is pressed in the bottom of anti-dynamic revolving door, thus prevents lock slide from sliding.Under described intelligent micro-circuit breaker locking device is in the lock state, by the hole that the U-shape lock tool of large wire diameter provides through metal door frame, thus effectively prevent intelligent micro-circuit breaker by action, reach the operating state (after namely closing a floodgate, locking prevents by separating brake, and after separating brake, locking prevents from being closed a floodgate) preventing other people from changing locking device.Those skilled in the art can clearly know according to instruction of the present invention: this intelligent micro-circuit breaker locking device is equally applicable in multipole intelligent micro-circuit breaker structure, now because multipole intelligent micro-circuit breaker has the multipole connection handle being suitable for installing intelligent micro-circuit breaker locking device, the connecting handle installing single modulus therefore can be saved.

According to instruction of the present invention, those skilled in the art can clearly know: automatic closing power set provided by the present invention, automatic closing power track transition components, automatic closing shielding toggle switch assembly, multi-functional logic control circuit pcb board, electromagnet assembly, power taking spring, power taking pin, the various execution modes of the associated components such as intelligent micro-circuit breaker locking device are only exemplary explanation, associated components can not departed to improvement or the distortion of intention of the present invention and purport to be applicable to concrete application scenarios or customer demand, to mutually mating or dexterousr practicality with other assembly.

With reference to aforementioned exemplifying description, those skilled in the art can clearly know the present invention and have the following advantages:

1, provided by the invention have the intelligent operation apparatus of automatic closing and time-lag shunted exciter function and comprise the automatic closing TS intelligent micro-circuit breaker of this intelligent operation apparatus, simple and compact for structure, economical, reliable operation, not only achieve State Grid Corporation of China's New Generation of Intelligent Electro-metering to the demand of intelligent micro-circuit breaker function, and greatly for electricity consumption user and power supply department provide conveniently.

2, provided by the invention have the intelligent operation apparatus of automatic closing and time-lag shunted exciter function and comprise this automatic closing TS intelligent micro-circuit breaker, and after user is continued to pay dues by mobile phone or networking, oneself realizes automatic closing by intelligent micro-circuit breaker immediately; When user passes through to power supply department application, and after obtaining license, arriving within a period of time electricity consumption can be continued.

3, provided by the invention have the intelligent operation apparatus of automatic closing and time-lag shunted exciter function and comprise the automatic closing TS intelligent micro-circuit breaker of this intelligent operation apparatus; when electric power system voltage occurs abnormal; there is trip protection in user side intelligent micro-circuit breaker; recover normally at supply power voltage; client can realize automatic closing electricity consumption the very first time, for power supply department saves the cost of manual closing operation.

4, the automatic closing TS intelligent micro-circuit breaker of the intelligent operation apparatus with automatic closing and time-lag shunted exciter function provided by the invention and the intelligent operation apparatus comprising this, function increase and decrease can be carried out according to the actual demand of client, truly realize economic and practical object.

5, the automatic closing TS intelligent micro-circuit breaker of the intelligent operation apparatus with automatic closing and time-lag shunted exciter function provided by the invention and the intelligent operation apparatus comprising this, automatic closing principle adopts the newly-invented expansion power actuator structure of ABB, be different from the motor principle structure on current market, there is very large cost advantage, and there are market prospects widely, as TS intelligent micro-circuit breaker market of new generation, electric automobile charging station intelligent micro-circuit breaker market etc.

6, intelligent micro-circuit breaker locking device provided by the invention and there is the automatic closing TS intelligent micro-circuit breaker of this intelligent micro-circuit breaker locking device, when not needing locking intelligent micro-circuit breaker, intelligent micro-circuit breaker locking device can use as the high handle of intelligent micro-circuit breaker, thus it is smoothly more convenient to operate to make intelligent micro-circuit breaker, for needing the industry being with gloves operative intelligence miniature circuit breaker, such as mine industry etc. are particularly applicable; Under unlock state, be fixedly mounted on intelligent micro-circuit breaker, and and affect any function of intelligent micro-circuit breaker, when avoiding that locking device is non-locking in the past, the shortcoming of easily losing must be unloaded.

Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.

Claims

1. there is an intelligent operation apparatus for automatic closing and time-lag shunted exciter function, it is characterized in that described intelligent operation apparatus module comprises: automatic closing power set, automatic closing power track transition components, automatic closing shielding toggle switch assembly, logic control circuit plate, shunt trip, power taking spring, power taking pin and auxiliary contact;

2. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, it is characterized in that, described automatic closing power set are used for heating inflating medium after powered up, the change in volume utilizing described inflating medium phase transformation to produce provides controlled power, and controlled displacement occurs propulsion power parts; And after a loss of power, described inflating medium cools and state before returning to phase transformation, and described power part returns to initial position.

3. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1 and 2, is characterized in that, described automatic closing power set also comprise: push-rod assembly, assistance actuator reset and provide the extension spring of counter-force.

4. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 3, is characterized in that, described push-rod assembly comprises push rod and power part; Wherein said power part embeds in the installing hole of described push rod, when described power part moves upward, can promote described push rod rectilinear motion stably.

5. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 3, it is characterized in that, described actuator assembly comprises shell, sealing ring, seal cartridge, grease-like liquid, swelling film, heating element, inflating medium, base, draws acusector.

6. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, is characterized in that, described two-chamber hermetically-sealed construction is, the first annular seal space is made up of the shell of described actuator assembly, base, swelling film; And second annular seal space primarily of described swelling film, seal cartridge, sealing ring, piston rod and shell upper end composition.

7. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, it is characterized in that, the lower limb of the shell of described actuator assembly is after spinning, produce plastic deformation, can be good at being adjacent on the inverted cone surface of base, thus inflating medium is sealed in the bottom of shell, form the lower end sealing of the first annular seal space.

8. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, it is characterized in that, described swelling film to be subject in the first annular seal space inflating medium when promoting upwards to turn over, grease-like liquid in the second annular seal space can be extruded, thus grease-like liquid promotion piston rod is moved upward.

9. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, is characterized in that, described base adopts the sealed base of frustum shape.

10. the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, is characterized in that, described heating element is the heating element of positive temperature coefficient, thread or sheet heating resistor.

11. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, it is characterized in that, described heating element adopts built-in mode of heating.

12. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 10 or 11, it is characterized in that, described heating element adopts maximized two plate, annular, the structure of inscribed polygon, inscribed hexagon of heating surface (area) (HS and the structure of wrapping wire resistance.

13. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, is characterized in that, described inflating medium is paraffin or mineral wax mixture.

14. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 13, is characterized in that, described mineral wax mixture with the addition of insulation and has the particle of thermal conductive resin.

15. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 14, is characterized in that, described particle be selected from diamond, diamond, alundum (Al2O3), zirconia, zinc oxide at least any one.

16. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 5, it is characterized in that, described automatic closing power set also comprise powered device power taking pin, described powered device power taking pin comprises N line end and L line end, is each passed through described base and is electrically connected with described heating element.

17. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 2, it is characterized in that, described automatic closing power set also comprise: counter-force spring, being arranged on top and/or the both sides of described power part, making described power part return to initial position for providing the counter-force of recovery.

18. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, it is characterized in that, the converts linear motion of moving component is movement in a curve by the contact site that contacts with moving component by described automatic closing power track transition components, thus promotes rotary side board component and rotate and realize hanging closing operation; And after a loss of power, described moving component is returned to initial position under the effect of described automatic closing power set and torsion spring.

19. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 18, it is characterized in that, described automatic closing power track transition components comprises: have the handle of path of action, transmit straight-line trajectory and have push rod, outside reactive torsion spring, inner side reactive torsion spring, the interior outer conductive insert of path of action, the path of action of described push rod and the path of action of described handle engage each other.

20. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, it is characterized in that, described automatic closing shielding toggle switch assembly comprises: limiting bracket, deciliter handle, rotating shaft, described conduction ball spring assembly, insulation ball spring assembly or deciliter handle insulation bulge-structure, described conduction insert.

21. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, it is characterized in that, described power taking spring comprises L pole power taking stage clip and N pole power taking stage clip, go deep into the inlet wire near ports of the miniature circuit breaker of both sides respectively, and be pressed on inlet wire port a part, from end of incoming cables power taking.

22. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 21, it is characterized in that, when front end system voltage is in normal range (NR) and the control logic prestored in logic control circuit plate allows described automatic closing power set power taking, there is provided power supply by described L pole power taking stage clip and N pole power taking stage clip for described automatic closing power set, realize automatic switching-in function.

23. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, it is characterized in that, described power taking pin comprises L pole power taking looper and N pole power taking looper, and one end of described L pole power taking looper and N pole power taking looper is deep in two power taking copper sheathings of logic control circuit plate respectively.

24. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 23, it is characterized in that, a power taking copper sheathing is connected with the electromagnet assembly stitch realizing shunted exciter tripping function by the thyristor of the described logic control circuit plate of series connection, another power taking copper sheathing is connected directly between on another stitch of electromagnet assembly, form a controlled loop, L pole and the N pole power taking looper other end are deep into the lower end of miniature circuit breaker L pole, both sides and N pole respectively, be connected with lower port conducting position, thus realize the rear end power taking of MCB "on" position.

25. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 23, is characterized in that, the electromagnet assembly that described logic control circuit plate assembles deeply is installed to the electromagnetic trip coil place of standard micro circuit breaker N pole; When subscriber arrearage, electric energy meter is by TS control port triggering signal, and the control logic circuit prestored in described logic control circuit plate will open controllable silicon, thus make negative electrode and anode conducting, and final trigger winding realizes shunted exciter tripping action.

26. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 1, is characterized in that, the output port of described intelligent operation apparatus comprises TS control port and auxiliary contact port; Wherein, namely described TS control port realizes the port showing control automatic brake separating/automatic closing, and namely described auxiliary contact port shows the port of breaker open operation or "on" position.

27. intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to claim 26, it is characterized in that, described TS control port is for receiving table control TS signal, when described TS signal port is unsettled or table controls loss of voltage, TS intelligent breaker realizes shunted exciter tripping, can not realize any type of feed motion; When the table control voltage resume of described TS signal port is normal, and circuit breaker separating brake last time reason is caused to be only that circuit breaker realizes automatic closing because the trip reason of TS port controlling.

28. 1 kinds of intelligent micro-circuit breakers, is characterized in that, described intelligent micro-circuit breaker comprises: the intelligent operation apparatus with automatic closing and time-lag shunted exciter function according to aforementioned any one claim.

29. intelligent micro-circuit breakers according to claim 28, is characterized in that, described intelligent micro-circuit breaker also comprises: standard micro circuit breaker L pole, standard micro circuit breaker N pole, multipole connection handle, dropout connector, interpolar connection rivet.

30. intelligent micro-circuit breakers according to claim 28; it is characterized in that; described intelligent micro-circuit breaker not only has manual divide-shut brake, overload protection, the overcurrent protection function of common intelligent micro-circuit breaker, and there is electric energy meter control automatic brake separating, arrearage automatic brake separating, electric energy meter control automatic closing, continue to pay dues after the automatic switching-in function of automatic closing.

31. intelligent micro-circuit breakers according to claim 28; it is characterized in that; described intelligent breaker has the following virtual protection function meeting secure protocol; comprise: after short circuit, overload, manual brake separating; circuit breaker automatic switching-in function is set a fault mode and shields; when circuit breaker rear end, fault is removed, and manually can close a floodgate and once remove fault setting, circuit breaker automatic switching-in function recovers.

32. intelligent micro-circuit breakers according to claim 28, is characterized in that, described intelligent micro-circuit breaker, after table control separating brake, can realize automatic switching-in function when table control signal sends switching signal.

33. intelligent micro-circuit breakers according to claim 28, is characterized in that, described intelligent micro-circuit breaker realizes automatic brake separating function in a case where, comprising:

During overload protection, realize protection automatic brake separating by the hot buckle release protection device of L pole MCB;

During short-circuit protection, realize protection automatic brake separating by the magnetic buckle release protection device of L pole MCB; And

When ammeter provides TS sub-gate signal, realize automatic brake separating by the shunt trip of intermediate module intelligent operation apparatus.

34. intelligent micro-circuit breakers according to claim 28, is characterized in that, under any circumstance, the automatic brake separating of the trip free design of intelligent micro-circuit breaker all can not be prevented from; Even if stop separating brake handle separating brake artificial, the contact of intelligent micro-circuit breaker inside also can realize automatic disengagement.