CN205508742U - Circuit breaker action mechanism - Google Patents

Abstract

The utility model discloses a circuit breaker action mechanism, when arriving the combined floodgate position with rotate handle, the pivotal axis that the turned angle of handle is greater than the both ends of second connecting rod required turned angle during with the central line coplanar of the rotation axis of handle, the power that continues to keep away from the separating brake position is applyed to the second connecting rod when being located the combined floodgate position to the handle, thereby can resist the power of returning the separating brake position that first actuating lever was applyed to the handle, the auto -lock has been realized, consequently, can prevent and keep away from quiet iron core because of the coil outage leads to moving the iron core, the messenger moves the iron core and keeps in contact with quiet iron core. Appearing when unusual when the circuit breaker internal electric circuit, making the handle relieve the auto -lock by dropout drive arrangement drive release and return the separating brake position from the combined floodgate position, the separating brake protection circuit is realized to the circuit breaker. Circuit breaker action mechanism connects handle and release through setting up the second connecting rod to realize the auto -lock through setting up the combined floodgate position, make full use of the part of former circuit breaker, make whole circuit breaker action mechanism's structure simple more, reliable.

Description

A kind of circuit breaker actuating mechanism

Technical field

The utility model discloses a kind of circuit breaker actuating mechanism, belong to Low Voltage Electrical Apparatus.

Background technology

The multi-functional terminal end electrical equipment of integrated form is referred to as control and protective switching device (being called for short CPS) in the world, is a kind of electrical equipment major function of chopper with point electrical ionizer element such as isolator, thermorelay being comprehensively integrated.In the application of its chopper, comparing motor operation mechanism, electromagnetic mechanism has faster breaking speed and breaking capacity, but electromagnetic mechanism is when closing a floodgate, it is necessary to is energized for a long time by coil and keeps sound iron core adhesive, thus expends a large amount of electric energy.Therefore, the electromagnetic mechanism of chopper can introduce a kind of operating mechanism, after electromagnetic mechanism can being made to close a floodgate by this operating mechanism, coil no power can also make dynamic and static iron core keep adhesive, thus realize energy-saving and emission-reduction, simultaneously, it is desirable to this operating mechanism needs the dynamic and static iron core disjunction that can allow electromagnetic mechanism during power-off to realize the separating brake of chopper in electricity consumption loop.

The operating mechanism of prior art, as Chinese patent literature CN204480980U discloses a kind of compact electromagnetic operating mechanism, including electromagnetic mechanism, reaction spring and divide-shut brake assembly, divide-shut brake assembly includes being arranged at above electromagnetic mechanism and horizontally extending lever dolly and the fixed pivot that enables lever dolly to rotate around it, and reaction spring is mounted on the side of lever dolly；In the middle part of lever dolly, appropriate location connects dynamic iron core by the structure that is connected, so that lever dolly will not interfere by rotarily driving dynamic iron core linear motion；Also including energy-saving mechanism, including lock catch unit and power saving unit, lock catch unit pins for the dynamic iron core that will move to attracted position, meanwhile, and power saving unit control coil power-off, thus realize electromagnetic operating mechanism when closing a floodgate without energising, save a large amount of electric energy.Described compact electromagnetic operating mechanism, when separating brake, lock catch unit releases the locking to dynamic iron core, made iron core away from static iron core by reaction spring effect, meanwhile, lever dolly rotates so that the movable contact on lever dolly is pivoted away from stationary contact, it is achieved separating brake.

The actuating mechanism of above-mentioned chopper relies on and the co-rotational locking piece of handle, and when handle turns to closing position, locking piece abuts against the lateral pin driving dynamic iron core motion, anti-stop iron core returns in situ, such that it is able to when coil blackout, dynamic iron core does not separates with static iron core, make energy-conservation being possibly realized.But, above-mentioned electromagnetic operating mechanism is owing to being additionally required parts such as arranging locking piece, and structure is complicated, takies expensive real estate in chopper, and reliability is relatively low.

Utility model content

The technical problem that structure in the circuit breaker actuating mechanism of this utility model prior art to be solved is complicated, reliability is relatively low, provides a kind of simple in construction, relatively reliable circuit breaker actuating mechanism for this.

A kind of circuit breaker actuating mechanism that this utility model provides,

Electromagnetic mechanism, including dynamic iron core, coil and static iron core；

Handle, it is possible to rotate between the open position corresponding with circuit-breaker switching on-off and closing position under external force；

Second connecting rod, connects described handle and electrical apparatus release, when described handle turns to closing position, and the rotational angle that the rotational angle of described handle is required time coplanar with the centrage of the rotary shaft of handle more than the pivotal axis at the two ends of described second connecting rod；

First drive rod, connects described handle and described dynamic iron core, when described handle move between closing position and open position, drives described dynamic iron core close or away from static iron core；

Stake body, is fixed with power transmission shaft and is provided with the movable contact coordinated with stationary contact and the 3rd elastic component；

Described handle from open position to closing position move time, described power transmission shaft is pressed so that described stake body rotates by described first drive rod, movable contact is made to contact with stationary contact, described handle from closing position to open position move time, described first drive rod decontrols the pressing to described power transmission shaft, thus under the effect of described 3rd elastic component elastic force, described stake body rotates and makes movable contact separate with stationary contact；

Tripping driving device, for when chopper internal circuit occurs abnormal, controls electrical apparatus release and makes circuit breaker tripping separating brake, and make handle return open position from closing position simultaneously.

Preferably, circuit breaker actuating mechanism of the present utility model,

Described tripping driving device includes,

Controller, for obtaining the voltage in circuit and/or electric current；

First dropout drive mechanism, including the magnetictrip accessed in circuit, magnetic sheet, after circuit is short-circuited, described magnetictrip produces magnetically-actuated magnetic sheet and moves to trigger position from initial position, and then makes trigger member motion make circuit breaker tripping；

Second dropout drive mechanism, controlled by described controller and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time, make circuit breaker tripping by the second dropout drive mechanism trigger member motion.

Preferably, circuit breaker actuating mechanism of the present utility model,

It is provided with pressing piece between described magnetic sheet and described trigger member, described magnetic sheet drives described pressing piece to move along a straight line when rotating, and then drive trigger member motion, being additionally provided with the 4th elastic component on described pressing piece, described 4th elastic component applies the power away from described trigger member or the component of power to described pressing piece.

Preferably, circuit breaker actuating mechanism of the present utility model, described pressing piece includes the transverse slat that one end coordinates and the riser fixed with the described transverse slat other end with described magnetic sheet, the other end of described riser is for contacting with described trigger member and driving described trigger member to move, become to have spring mounting groove in the middle of described transverse slat, described riser is hooked in described 4th elastic component one end, and the other end is fixed.

Preferably, circuit breaker actuating mechanism of the present utility model, described trigger member has rod body, described rod body one end forms the first extension coordinated with described pressing piece, middle part extends to side and forms the second extension coordinated with described second dropout drive mechanism, and the other end has the 3rd extension driving the motion of dropout part.

Preferably, circuit breaker actuating mechanism of the present utility model, described 3rd extension forms the extension rod of the shaft parallel with described trigger member.

Preferably, circuit breaker actuating mechanism of the present utility model, described trigger member is provided with the first elastic component, described first elastic component applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member.

Preferably, circuit breaker actuating mechanism of the present utility model, also include locating part, be arranged in the described magnetic sheet direction of motion by described magnetictrip effect, for stopping that after described magnetic sheet moves to trigger position described magnetic sheet is rotated further.

Preferably, circuit breaker actuating mechanism of the present utility model, described second dropout drive mechanism, including the second electromagnet, actuator, described second electromagnet produces actuator described in magnetic force moving after being controlled by the controller and being energized, and described actuator moves between the first position and the second position and drives described trigger member during moving to the second position from primary importance.

Preferably, circuit breaker actuating mechanism of the present utility model, also include restoring board, described restoring board, after de-fastening relieving is threaded off, is used for promoting described actuator to return primary importance.

Preferably, circuit breaker actuating mechanism of the present utility model,

Described electrical apparatus release, including: rotating turret, snap close, tripping, snap close is arranged on rotating turret by the 5th rotating shaft and can be around the 5th axis of rotation, and tripping and rotating turret are fixed on inner fixed stand by the second common rotating shaft；Described snap close is connected with described handle by described second connecting rod；Tripping has the linkage status locked together with described snap close and the released state separated with described snap close, and described tripping drives described handle motion to realize the dropout separating brake of chopper to open position by described second connecting rod after separating with described snap close.

Preferably, circuit breaker actuating mechanism of the present utility model,

Also including power saving features, described power saving features can turn to make during closing position described coil blackout by described handle.

This utility model has the advantage that relative to prior art

1. circuit breaker actuating mechanism disclosed in this utility model, handle can rotate under external force between open position and closing position, the separating brake of corresponding chopper and separating brake.Second connecting rod connects described handle and electrical apparatus release, when handle is turned to closing position, the rotational angle that the rotational angle of handle is required time coplanar with the centrage of the rotary shaft of handle more than the pivotal axis at the two ends of second connecting rod, during i.e. handle turns to closing position, when the pivotal axis at second connecting rod two ends is coplanar with rotary shaft, this is the critical localisation of handle divide-shut brake, open position can be returned when handle is not rotated up to this position, and handle is rotated further and exceedes this critical localisation and get to closing position, the now pivotal axis at second connecting rod two ends and the three-point shape triangularity of rotary shaft.When being positioned at closing position, second connecting rod applies to continue the power away from open position to handle, such that it is able to the power returning open position that opposing the first drive rod applies to handle, achieve self-locking, therefore can stop and cause because of coil blackout dynamic iron core away from static iron core, make iron core keep contacting with static iron core.Described circuit breaker actuating mechanism, connects handle and electrical apparatus release by arranging second connecting rod, and realizes self-locking by arranging closing position, take full advantage of the parts of former chopper so that the structure of whole circuit breaker actuating mechanism is simpler, reliable.

2. circuit breaker actuating mechanism disclosed in this utility model, has the first dropout drive mechanism and the second dropout drive mechanism.Described first dropout drive mechanism and the second dropout drive mechanism can drive trigger member that electrical apparatus release is moved, and then make to be positioned at the handle disequilibrium of closing position by second connecting rod and turn to open position, the dynamic iron core making chopper realizes separating brake away from static iron core, chopper.

Specifically; second dropout drive mechanism and controller cooperating; controller controls for the controller obtaining the voltage in circuit and/or electric current; second dropout drive mechanism; controlled by described controller and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time; trigger member motion is driven to make circuit breaker tripping separating brake, it is achieved to the overvoltage of chopper, to cross stream, the common protection such as under-voltage.

First dropout drive mechanism, including magnetictrip and magnetic sheet, described magnetictrip is to access the wire in circuit, wire itself plays electric action, magnetic field can be produced again simultaneously, simplify the structure of chopper, multiple conducting wires is set and can produce higher magnetic force when short circuit current occurs in wire, magnetically-actuated magnetic sheet moves to trigger position from initial position, drive described trigger member action and then trigger the electrical apparatus release in chopper and make chopper rapid-releasing separating brake, thus realize reliable to chopper by the first dropout drive mechanism, quickly, effective short-circuit protection.

Therefore, circuit breaker actuating mechanism disclosed in this utility model, both can be that circuit provides overvoltage, crosses stream, the common protection such as under-voltage, can provide reliably for circuit again, short-circuit protection fast and effectively.

3. circuit breaker actuating mechanism disclosed in this utility model, trigger member body is rod, one end of the described rod body rod of trigger member forms the first extension coordinated with described pressing piece, the other end has the 3rd extension driving electrical apparatus release motion, and middle extension to side forms the second extension coordinated with the actuator of described second dropout drive mechanism.The pressing piece of the first dropout drive mechanism is moved to trigger position by initial position and exerts a force the first extension, or the actuator of the second dropout drive mechanism is moved to the second position by primary importance and exerts a force the second extension, then trigger member Forced rotation, the 3rd extension drives the electrical apparatus release of chopper.By the first extension, the second extension and the setting of the 3rd extension, making trigger member form rational structure, trigger member can trigger electrical apparatus release under the drive of the first dropout drive mechanism or the second dropout drive mechanism and complete to thread off.First dropout drive mechanism and the second dropout drive mechanism are used in conjunction with trigger member and complete to thread off, and save number of components, have saved space.

4. circuit breaker actuating mechanism disclosed in this utility model, also includes energy-saving mechanism, and the power-off of coil is controlled after handle turns to closing position by described energy-saving mechanism, and then realizes the energy-saving and emission-reduction of chopper.Now it is maintained at closing position due to handle, therefore moves iron core and can remain in that the state contacted with static iron core in the case of coil is cold, make the movable contact of chopper keep adhesive with stationary contact.Only chopper first tripping under drive mechanism or the second dropout drive mechanism effect of threading off separates with snap close, handle disequilibrium is made to turn to open position, or directly made it turn to open position on handle by External Force Acting, the movable contact that can make chopper separates with stationary contact, breaker open operation.

5. the circuit breaker actuating mechanism that this utility model provides, its tripping driving device also includes locating part, described locating part anglec of rotation of magnetic sheet after limit short circuit, to prevent the 4th elastic component elastic deformation from exceeding allowed band and reduction of service life, and is prevented from magnetic sheet contact wire and produces magnetic sheet and damage.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of a kind of circuit breaker actuating mechanism of the present utility model；

Fig. 2 is the part-structure schematic diagram of circuit breaker actuating mechanism of the present utility model；

Fig. 3 is the structural representation of tripping of the present utility model；

Fig. 4 is the structural representation of snap close of the present utility model；

Fig. 5 is the part-structure schematic diagram of circuit breaker actuating mechanism of the present utility model；

Fig. 6 is the part-structure schematic diagram of circuit breaker actuating mechanism of the present utility model；

Fig. 7 is the sectional view of circuit breaker actuating mechanism of the present utility model；

Fig. 8 is the installation diagram of circuit breaker actuating mechanism of the present utility model；

Fig. 9 is the part-structure schematic diagram of circuit breaker actuating mechanism of the present utility model；

Figure 10 is the installation diagram of circuit breaker actuating mechanism middle controller of the present utility model；

Figure 11 is the axonometric chart of circuit breaker actuating mechanism trigger member of the present utility model；

Figure 12 is the front view of Figure 11；

Reference: 11-tripping；111-plate body；112-cylindricality installation portion；1111-locked groove；

113-extension；1131-drive hole；

12-snap close；121-snap close body；122-locking projections；123-snap close side plate；

1231-rotating shaft installing hole；1232-second connecting rod installing hole；124-strengthens projection；

21-moves iron core；22-coil；23-static iron core；

31-trigger member；311-extension rod；312-the 3rd extension；313-the second extension；

314-the first extension；315-rotating shaft；

32-the first elastic component；33-handle spring；34-the 3rd elastic component；

41-handle；42-second connecting rod；43-the first drive rod；

51-the first lock link；52-the second lock link；53-the 3rd lock link；54-tumbler；

61-inner fixed stand；62-stake body.

71-power transmission shaft；72-the second rotating shaft；73-rotary shaft；74-the 4th rotating shaft；75-the 5th rotating shaft

81-pressing piece；811-press-side；812-restoring board；

91-arcuate socket；92-plectrum；

101-magnetictrip；102-the 4th elastic component；103-locating part；104-magnetic sheet；

105-pressing piece；1051-mounting groove；107-actuator；108-the second electromagnet；

109-controller.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitutes conflict each other.

Embodiment

There is provided as this utility model, as shown in Fig. 1, Fig. 5, Fig. 7, including:

Electromagnetic mechanism, including dynamic iron core 21, coil 22 and static iron core 23；

Handle 41, it is possible to rotate between the open position corresponding with circuit-breaker switching on-off and closing position under external force；

Second connecting rod 42, connects described handle 41 and electrical apparatus release, when described handle 41 turns to closing position, and the rotational angle that the rotational angle of described handle 41 is required time coplanar with the centrage of the rotary shaft 73 of handle 41 more than the pivotal axis at the two ends of described second connecting rod 42；

First drive rod 43, connects described handle 41 and described dynamic iron core 21, when described handle 41 move between closing position and open position, drives described dynamic iron core 21 close or away from static iron core 23；

Stake body 62, is fixed with power transmission shaft 71 and is provided with the movable contact coordinated with stationary contact and the 3rd elastic component 34；

Described handle 41 from open position to closing position move time, described power transmission shaft 71 is pressed so that described stake body 62 rotates by described first drive rod 43, movable contact is made to contact with stationary contact, described handle 41 from closing position to open position move time, described first drive rod 43 decontrols the pressing to described power transmission shaft 71, thus under the effect of described 3rd elastic component 34 elastic force, described stake body 62 rotates and makes movable contact separate with stationary contact；

Tripping driving device, for when chopper internal circuit occurs abnormal, controls electrical apparatus release and makes circuit breaker tripping separating brake, and make handle 41 return open position from closing position simultaneously.

Second connecting rod 42 connects described handle 41 and electrical apparatus release, as shown in Figure 7, when described handle 41 turns to closing position, the rotational angle that the rotational angle of handle 41 is required time coplanar with the centrage of the rotary shaft 73 of handle 41 more than the pivotal axis at the two ends of described second connecting rod 42, during i.e. handle 41 turns to closing position, when the pivotal axis at second connecting rod 42 two ends is coplanar with rotary shaft 73, this is the critical localisation of handle divide-shut brake, open position can be returned when handle 41 is not rotated up to this position, and handle 41 is rotated further and exceedes this critical localisation and get to closing position, the now pivotal axis at second connecting rod two ends and the rotary shaft 73 three-point shape triangularity on the longitudinal section of Fig. 7.When being positioned at closing position, second connecting rod 42 applies to continue the power away from open position to handle 41, such that it is able to the power returning open position that opposing the first drive rod 43 applies to handle 41, achieve self-locking, therefore can stop and cause because of coil 22 power-off dynamic iron core 21 away from static iron core 23, make iron core 21 keep contacting with static iron core 23.Above-mentioned circuit breaker actuating mechanism, connects handle 41 and electrical apparatus release by arranging second connecting rod 42, and realizes self-locking by arranging closing position, take full advantage of the parts of former chopper so that the structure of whole circuit breaker actuating mechanism is simpler, reliable.

Specifically, described tripping driving device includes,

Controller 109, for obtaining the voltage in circuit and/or electric current；

First dropout drive mechanism, including the magnetictrip 101 accessed in circuit, magnetic sheet 104, after circuit is short-circuited, described magnetictrip 101 produces magnetically-actuated magnetic sheet 104 and moves to trigger position from initial position, and then makes trigger member 31 motion make circuit breaker tripping；

Second dropout drive mechanism, controlled by described controller 109 and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time, drive trigger member 31 motion to make circuit breaker tripping by the second dropout drive mechanism.

In the present embodiment, specifically, in electromagnetic mechanism, coil 22 and static iron core 23 are fixed on inner fixed stand 61, dynamic iron core 21 connects handle 41 by the first drive rod 43, and dynamic iron core 21 can produce magnetic force near static iron core 23 when coil 22 is energized, breaker closing accordingly, and dynamic iron core 21 away from static iron core 23 time, breaker open operation accordingly.

Handle 41 has the open position corresponding with circuit-breaker switching on-off and closing position, described handle 41 can rotate under external force between open position and closing position, it is also possible to is driven trigger member 31 to be turned to open position by closing position by thread off drive mechanism or the second dropout drive mechanism of chopper first.During handle 41 leaves open position, coil 22 is energized and produces magnetic force, moves iron core 21 under magneticaction successfully near static iron core 23, in approach process, first drive rod 43 is synchronized with the movement with handle 41 until handle 41 is positioned at closing position, and chopper realizes closing a floodgate smoothly.

Further, being arranged with in the rotary shaft of described handle 41 for applying to go to the power of open position or the component handle spring 33 of power to handle 41, described handle spring 33 one end is resisted against in the second rotating shaft 72 of described electrical apparatus release, the other end laterally penetrates in described handle 41.

Handle 41 releases the active force to handle 41 when closing a floodgate without arriving closing position, and handle spring 33 can make handle 41 return open position, to prevent maloperation, improves the safety of chopper.When electrical apparatus release is driven trigger member 31 to move by the first dropout drive mechanism or the second dropout drive mechanism simultaneously, effect lower handle 41 disequilibrium at second connecting rod 42 produces a movement tendency turning to open position, apply to go to the power of open position or the component of power to handle 41 in conjunction with described handle spring 33, therefore, described handle 41 is under the driving of electrical apparatus release and under the common effect of handle spring 33, successfully can turn to open position from closing position, quickly realize separating brake.Described handle spring 33 is preferably torsion spring.

Further, described second connecting rod 42 has two, and two described second connecting rods 42 are coplanar and are positioned at described handle 41 and the both sides of electrical apparatus release.As shown in Figure 5, two second connecting rods 42 can make the active force being parallel to handle 41 and electrical apparatus release rotor shaft direction acting on handle 41 and electrical apparatus release cancel out each other, prevent handle 41 and electrical apparatus release rotating shaft therefore active force from rupturing, and two second connecting rods 42 can also improve structural strength.

As it is shown in fig. 7, the first drive rod 43 connects handle 41 and dynamic iron core 21, when described handle 41 rotates between closing position and open position, the most described dynamic iron core 21 near or away from static iron core 23, the also switch closing and switch opening of corresponding chopper.

It is fixed with power transmission shaft 71 on stake body 62 and is provided with the movable contact coordinated with stationary contact and the 3rd elastic component 34, it is provided with the 4th rotating shaft 74 on the stake body of the 3rd elastic component 34 end, described it is fixed on the 4th rotating shaft 74 of inner fixed stand 61 between the 3rd elastic component 34 and rotary shaft 71, stake body 62 can rotate within the specific limits around the 4th rotating shaft 74, when stake body 62 as shown in Figure 8 rotates clockwise, then the contact of the movable contact on stake body 62 stationary contact, breaker closing, otherwise, separating brake.The anglec of rotation around the 4th rotating shaft 74 of described power transmission shaft 71 is limited by the arcuate socket 91 on inner fixed stand 61, correspondingly, also limit the stake body 62 anglec of rotation around the 4th rotating shaft 74, the scope that the described anglec of rotation is arranged can make the movable contact of chopper effectively contact or disjunction with stationary contact.

The circuit breaker actuating mechanism of the present embodiment, when handle 41 moves to closing position from open position, the dynamic iron core 21 of coil 22 energising produces to the close movement tendency of static iron core 23, handle 41 orders about the first drive rod 43 and presses power transmission shaft 71 and make stake body 62 resist the 3rd elastic component 34 and turn clockwise around the 4th rotating shaft 74 such as Fig. 8 simultaneously, making movable contact contact stationary contact, chopper realizes closing a floodgate；When handle moves to open position from closing position, handle 41 orders about the first drive rod 43 and decontrols the pressing to power transmission shaft 71, make dynamic iron core 21 away from described static iron core 23, stake body 62 rotates such as Fig. 8 counterclockwise around the 4th rotating shaft 74 under the effect of the 3rd elastic component 34, movable contact is made to realize separating brake away from stationary contact, chopper.Thus when being rotated between closing position and open position, realize the shutting-brake control to chopper and separating brake control by handle 41.

As shown in Figure 10; controller 109; voltage in testing circuit and/or current value; by analysis, process controlled the second dropout drive mechanism later; if controller 109 detect current value be more than current setting value (overload) or magnitude of voltage more than/less than voltage setting value (overvoltage/under-voltage); illustrate circuit exists abnormal conditions; then the second dropout drive mechanism drives trigger member 31 so that electrical apparatus release is threaded off; handle 41 disequilibrium turns to open position chopper to be able to separating brake, thus provides overload, overvoltage, the conventional protection such as under-voltage for circuit.

Described first dropout drive mechanism access under the effect of the magnetictrip 101 of the circuit big electric current when short circuit; produce rapidly powerful magnetically-actuated magnetic sheet 104 and move to trigger position from initial position; described magnetic sheet 104 one end is connected on pressing piece 105; trigger member 31 is driven so that electrical apparatus release is threaded off by pressing piece 105; handle 41 disequilibrium turns to open position chopper quick acting switching-off; the whole process threaded off is less than 10ms, thus provides short-circuit protection quick, reliable, effective for chopper.

Further, described magnetictrip 101 is the some wires being arranged side by side, wire itself plays electric action, magnetic field can be produced again simultaneously, simplify the structure of chopper, multiple conducting wires is set and can produce higher magnetic force when short circuit current occurs in wire, thus can in real time, quickly respond and make circuit breaker tripping.As it is shown in figure 9, magnetictrip 101 is made up of 4 wires, naturally it is also possible to be the wire of other quantity, as 1,2,3 or 5,6 etc..

It is provided with pressing piece 105 between described magnetic sheet 104 and described trigger member 31, described magnetic sheet 104 drives described pressing piece 105 to move along a straight line when rotating, and then drive trigger member 31 to move, being additionally provided with the 4th elastic component 102 on described pressing piece 105, described 4th elastic component 102 applies the power away from described trigger member 31 or the component of power to described pressing piece 105.

Magnetic sheet 104 one end of first dropout drive mechanism is connected on pivotal axis, and the other end is connected with pressing piece 105, and pressing piece 105 is provided with the 4th elastic component 102 making itself and magnetic sheet 104 return to initial position.Magnetic sheet 104 rotates under the effect of magnetictrip 101 and drives pressing piece 105 to resist the 4th elastic component 102 and drive trigger member 31.

Yet further, described pressing piece 105 includes the transverse slat that one end coordinates and the riser fixed with the described transverse slat other end with described magnetic sheet 104, the other end of described riser is for contacting with described trigger member 31 and driving described trigger member 31 to move, become to have spring mounting groove 1051 in the middle of described transverse slat, described riser is hooked in described 4th elastic component 102 one end, and the other end is fixed.

As it is shown in figure 9, described pressing piece 105 includes transverse slat that one end coordinates and the riser fixing with the described transverse slat other end with described magnetic sheet 104, described pressing piece 105 can left and right rectilinear movement in a segment distance in the horizontal direction under the drive of described magnetic sheet 104.Magnetic sheet 104 and pressing piece 105 are when initial position, and magnetic sheet 104 is perpendicular to the transverse slat of pressing piece 105, is parallel to the riser of magnetic sheet 104, and pressing piece 105 is in poised state.Described transverse slat intermediary form has the mounting groove 1051 installing the 4th elastic component 102.Under the magneticaction of magnetictrip 101, magnetic sheet 104 rotates and links with pressing piece 105, the elastic force of the 4th elastic component 102 is overcome to drive and close trigger member 31, the riser of pressing piece 105 applies power to the second extension 313 of trigger member 31, making trigger member 31 do anticlockwise rotation in Fig. 9, final driving trigger member 31 rotates and makes circuit breaker tripping.After circuit breaker tripping, whole breaker open operation, current vanishes, magnetictrip 101 does not produce magnetic force, the power then pointing to trigger member 31 direction on pressing piece 105 disappears, being rebounded by the 4th elastic component 102 being deformed and pressing piece 105 band is back to initial position, magnetic sheet 104 part 105 that is pressed drives and also returns to initial position without magneticaction.

Preferably, described trigger member 31 has rod body, described rod body one end forms the first extension 314 coordinated with described pressing piece 105, middle part extends to side and forms the second extension 313 coordinated with described second dropout drive mechanism, and the other end has the 3rd extension 312 driving electrical apparatus release motion.

As shown in Fig. 9, Figure 11, trigger member 31 body is rod, one end of the rod body of trigger member 31 forms the first extension 314 coordinated with described pressing piece 105, the other end has the 3rd extension 312 driving electrical apparatus release motion, and middle extension to side forms the second extension 313 coordinated with the actuator 107 of described second dropout drive mechanism.The pressing piece 105 of the first dropout drive mechanism is moved to trigger position by initial position and exerts a force the first extension 314, or the actuator 107 of the second dropout drive mechanism is moved to the second position by primary importance and exerts a force the second extension 313, then trigger member 31 Forced rotation, the 3rd extension 312 drives the electrical apparatus release of chopper.By the first extension the 314, second extension 313 and setting of the 3rd extension 312, making trigger member 31 form rational structure, trigger member 31 can trigger electrical apparatus release under the drive of the first dropout drive mechanism or the second dropout drive mechanism and complete to thread off.

Described 3rd extension 312 forms the extension rod 311 parallel with the rotating shaft 315 of described trigger member 31.

Extension rod 311 is formed on described 3rd extension 312, described extension rod 311 is parallel with the rotating shaft 315 of described trigger member 31, the electrical apparatus release of chopper is coaxially disposed with rotating shaft 315, and described extension rod 311 also connects the electrical apparatus release of chopper, thus described trigger member 31 can drive electrical apparatus release.As shown in Fig. 9, Figure 11, first extension 314 of described trigger member 31 or the second extension 313 stress and make described trigger member 31 rotate counterclockwise around its rotating shaft 315, described trigger member 31 drives the electrical apparatus release of chopper to rotate counterclockwise along Fig. 6 direction simultaneously, thus realizes the dropout of chopper.

Further, described trigger member 31 being provided with the first elastic component 32, described first elastic component 32 applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member 31.

As described in Figure 6, described trigger member 31 being provided with the first elastic component 32, first elastic component 32 one end is articulated in described trigger member 31, and the other end is mounted on inner fixed stand 61.Trigger member 31 is connected with electrical apparatus release by extension rod 311, first extension 314 is exerted a force by the first dropout drive mechanism, or the second extension 313 is exerted a force by the second dropout drive mechanism, due to the first extension 314 or the second extension 313 stress, make trigger member 31 resist the first elastic component 32 315 to rotate and make the 3rd extension 312 trigger electrical apparatus release around the shaft, so that circuit breaker tripping.After circuit breaker tripping, first dropout drive mechanism and/or the second dropout drive mechanism reset, the power being applied to the first extension 314 or the second extension 313 disappears, under the effect of the first elastic component 32, trigger member 31 returns to initial position, the electrical apparatus release simultaneously driving chopper returns to initial position, in case next time performs dropout.

The circuit breaker actuating mechanism that the present embodiment provides, also includes locating part 103, is arranged in the direction of motion that described magnetic sheet 104 act on by described magnetictrip 101, is used for stopping that after described magnetic sheet 104 moves to trigger position described magnetic sheet 104 is rotated further.

Described locating part 103 anglec of rotation of magnetic sheet 104 after limiting short circuit prevents the 4th elastic component 102 elastic deformation from exceeding allowed band and reduction of service life, and is prevented from magnetic sheet 104 contact wire and produces magnetic sheet 104 and damage.

Described second dropout drive mechanism, including the second electromagnet 108, actuator 107, the described second controlled device of electromagnet 108 109 produces actuator 107 described in magnetic force moving after controlling and being energized, and described actuator 107 moves between the first position and the second position and drives described trigger member 31 during moving to the second position from primary importance.

Decide whether to start described second electric magnet 108 after analyzing and processing after the data of described controller 109 detection collection power supply and electric current so that it is promote described actuator 107.If described second electric magnet 108 starts, described actuator 107 is moved to second position actuator 107 by primary importance and moves downward described second extension 313 of promotion in fig .9, thus drive described trigger member 31, make circuit breaker tripping.

Further, described circuit breaker actuating mechanism also includes restoring board 812, and described restoring board 812, after electrical apparatus release releases and threads off, is used for promoting described actuator 107 to return primary importance.

Described restoring board 812 is arranged with the dynamic iron core linkage of chopper, after circuit breaker tripping, described restoring board 812 can after electrical apparatus release releases and threads off the snap close of i.e. electrical apparatus release relock with tripping together with after, drive described actuator 107 to be returned to primary importance restoring board 812 by the second position to move upward in fig .9, reduce the overhang of actuator 107.

Described electrical apparatus release, including: rotating turret 54, snap close 12, tripping 11, snap close 12 is arranged on rotating turret 54 by the 5th rotating shaft 75 and can be rotated around the 5th rotating shaft 75, and tripping 11 and rotating turret 54 are fixed on inner fixed stand 61 by the second common rotating shaft 72；Described snap close 12 is connected with described handle 41 by described second connecting rod 42；Tripping 11 has the linkage status locked together with described snap close 12 and the released state separated with described snap close 12, and described tripping 11 drives described handle 41 to move to open position by described second connecting rod 42 after separating with described snap close 12 and realizes the dropout separating brake of chopper.

As shown in Figure 3, described tripping 11 has plate body 111, and it being molded over the cylindricality installation portion 112 bottom described plate body 111, the internal diameter of cylindricality installation portion 112 and the external diameter of the second rotating shaft 72 match, and make tripping 11 may be mounted in the second rotating shaft 72 and rotate around the second rotating shaft 72.Forming locked groove 1111 on described plate body 111, the outside opening of locked groove 1111 is more than inside opening.Forming the drive hole 1131 parallel with the axle of cylindricality installation portion 112 on extension 113 on cylindricality installation portion 112, described drive hole 1131 is connected with the extension rod 311 of described trigger member 31, thus realizes the linkage setting of described tripping 11 and trigger member 31.

As shown in Figure 4, described snap close 12 includes the snap close side plate 123 of snap close body 121 and both sides, and snap close body 121 is provided with the locking projections 122 for coordinating with locked groove 1111 on the side of tripping 11.Described locking projections 122, in outer little interior big trapezoidal projection, matches with described locked groove 1111, so that tripping 11 can effectively link with snap close 12.Deforming as one, described protruding 122 can be in other shapes, and corresponding locked groove 1111 is the shape of coupling, and as locking projections 122 is rectangle, then locked groove 1111 outside opening is equal to inside opening.Form the reinforcement projection 124 for reinforcing tripping 12 in the middle part of described snap close body 121, strengthen snap close body 121 and bear the ability of internal stress, thus improve the service life of snap close 12.The rotating shaft installing hole 1231 passed for the 5th rotating shaft 75 is formed on described snap close side plate 123, and the second connecting rod installing hole 1232 that the described second connecting rod 42 of confession stretches into, the internal diameter of described rotating shaft installing hole 1231 and the external diameter of the 5th rotating shaft 75 match so that snap close 12 accurately can rotate around the 5th rotating shaft 75, the internal diameter of described second connecting rod installing hole 1232 matches with the external diameter of second connecting rod 42, so that handle 41 can link accurately and efficiently with snap close 12.

As shown in Figure 5, described rotating turret 54 is linked with rotary shaft 71 by linkage, rotating turret 54 connects handle 41 by snap close 12 and second connecting rod 42, power transmission shaft 71 is fixed on stake body 62, thus set up interaction relation between described handle 41 and stake body 62, make handle 41 can control the movable contact of chopper close to or away from movable contact, enable chopper separating brake quickly and efficiently.Described linkage, including the first lock link the 51, second lock link 52 and the 3rd lock link 53, one end of described three lock links is coaxially connected at Q point, the other end Q1 of the first lock link 51 is arranged on inner fixed stand 61 immovable, the other end Q2 of the second lock link 52 is fixed on power transmission shaft 71 and links with it, and the other end Q3 of the 3rd lock link 53 is connected with described rotating turret 54.Q2 point with rotary shaft 71 when the 4th rotary shaft 72 rotates clockwise in arcuate socket 91, owing to Q1 point is fixed, therefore Q point drives Q3 to produce a displacement to the right, described rotating turret 54 such as Fig. 5 is thus driven to rotate counterclockwise, otherwise, described for driving rotating turret 54 such as Fig. 5 when the 4th rotary shaft 72 rotates counterclockwise in arcuate socket 91, is rotated clockwise by Q2 point with rotary shaft 71.In like manner, if described rotating turret 54 is rotated clockwise around the second rotating shaft 72 by driving, then rotary shaft 71 will rotate counterclockwise around the 4th rotating shaft 74, and process is contrary with above-mentioned motor process.

Analyze, when handle 41 is in equilbrium position, second connecting rod 42 applies to continue the power away from open position to handle 41, can resist the power returning open position that the first drive rod 43 applies to handle 41, handle 41 achieves self-locking, and snap close 12 also keeps balance with second connecting rod 42.Therefore, when handle 41 is in closing position, under the effect of second connecting rod 42, there is the trend moved upward in snap close 12 as shown in Figure 1, and this movement tendency is limited by tripping 11, so that snap close 12, second connecting rod 42 and handle 41 are in poised state.When chopper be short-circuited, overvoltage, overload, the situation such as under-voltage time its interior tripping driving device drive trigger member 31 to make tripping 11 such as Fig. 5 turn clockwise, tripping 11 releases the motion to snap close 12 and limits, i.e. tripping 11 separates with snap close 12, so that snap close 12 such as Fig. 5 rotates counterclockwise around the 5th rotating shaft 75, second connecting rod 42 makes handle 41 disappear away from the active force of open position simultaneously, and handle 41 turns to open position.Meanwhile, owing to the snap close 12 such as Fig. 5 on rotating turret 54 rotates counterclockwise around the 5th rotating shaft 75, making rotating turret 54 turn clockwise, therefore rotary shaft 71 can rotate counterclockwise such as Fig. 5, and stake body 62 synchronous rotary makes dynamic iron core away from static iron core, breaker open operation.

The actuating mechanism that the present embodiment provides, also includes power saving features, and described power saving features can turn to make the power-off of described coil 22 during closing position by described handle 41.

After turning to closing position due to handle 41, coil 22 power-off, now, trigger member 31 is driven to cause tripping 11 to separate with snap close 12 without direct External Force Acting tripping driving device in handle 41 or chopper, then handle 41 remains at closing position, accordingly, described dynamic iron core 21 keeps contacting with static iron core 23, thus achieves the energy-saving and emission-reduction of chopper.

Specifically, described power saving features includes the pressing piece 81 arranged with the linkage of described stake body 62, as described in Figure 10, described pressing piece 81 is mounted on inner fixed stand 61, can move up and down on inner fixed stand 61, thus the microswitch of control coil 22 connecting and disconnecting of the circuit, when described stake body 62 rotates and makes iron core 21 contact with static iron core 22, described pressing piece 81 can press described microswitch so that described coil 22 power-off.

As shown in Figure 10, described pressing piece 81 is arranged with stake body 62 linkage, and pressing piece 81 forms press-side 811, and the lower section of press-side 811 is provided with and the microswitch of control coil 22 switching electricity.Dynamic iron core 21 near static iron core 22 and is pulled together, and handle 41 turns to closing position, and stake body 62 rotation being provided with movable contact makes movable contact contact stationary contact, and breaker closing, then press-side 811 presses microswitch and makes the power-off of described coil 22.Owing to the handle 41 at closing position constitutes poised state under the effect of second connecting rod 42 and the first drive rod 43, therefore after coil 22 power-off, described dynamic iron core 21 still can keep contacting with described static iron core 22, movable contact on circuit breaker cradle body 62 still keeps contacting with the stationary contact of chopper, it is achieved thereby that the energy-saving and emission-reduction of chopper.

As shown in Figure 10, described pressing piece 81 is mounted on inner fixed stand 61, can move up and down on inner fixed stand 61, as described in Figure 1, pressing piece 81 is linked with described dynamic iron core 21 by power transmission shaft 71, owing to power transmission shaft 71 can rotate around the 4th rotating shaft 74 with stake body 62, therefore during circuit-breaker switching on-off, the movement locus of power transmission shaft 71 can be decomposed into horizontally and vertically, in vertical direction, the motion of power transmission shaft 71 can drive pressing piece 81 to move up and down in the length that inner fixed stand 61 allows, make power transmission shaft 71 can make displacement in the horizontal direction by motion in long waist shaped hole.

As shown in Figure 8, the chopper that the present embodiment provides also has the plectrum 92 that handle 41 can be locked in open position, when handle 41 is positioned at open position, projection on described plectrum 92 makes handle not rotate, such that it is able to prevent from, in circuit maintenance mistiming, handle 41 is turned to open position and initiation electrification in stretching into the lockhole of handle 41.

Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And among the protection domain that the obvious change thus extended out or variation are created still in this utility model.

Claims (12)

1. a circuit breaker actuating mechanism, it is characterised in that

Electromagnetic mechanism, including dynamic iron core (21), coil (22) and static iron core (23)；

Handle (41), it is possible to rotate between the open position corresponding with circuit-breaker switching on-off and closing position under external force；

Second connecting rod (42), connect described handle (41) and electrical apparatus release, when described handle (41) turns to closing position, the rotational angle that the rotational angle of described handle (41) is required time coplanar with the centrage of the rotary shaft (73) of handle (41) more than the pivotal axis at the two ends of described second connecting rod (42)；

First drive rod (43), connect described handle (41) and described dynamic iron core (21), when described handle (41) moves between closing position and open position, drive described dynamic iron core (21) near or away from static iron core (23)；

Stake body (62), is fixed with power transmission shaft (71) and is provided with the movable contact coordinated with stationary contact and the 3rd elastic component (34)；

Described handle (41) from open position to closing position move time, described power transmission shaft (71) is pressed so that described stake body (62) rotates by described first drive rod (43), movable contact is made to contact with stationary contact, described handle (41) from closing position to open position move time, described first drive rod (43) decontrols the pressing to described power transmission shaft (71), thus under the effect of described 3rd elastic component (34) elastic force, described stake body (62) rotates and makes movable contact separate with stationary contact；

Tripping driving device, for when chopper internal circuit occurs abnormal, controls electrical apparatus release and makes circuit breaker tripping separating brake, and make handle (41) return open position from closing position simultaneously.

Circuit breaker actuating mechanism the most according to claim 1, it is characterised in that

Described tripping driving device includes,

Controller (109), for obtaining the voltage in circuit and/or electric current；

First dropout drive mechanism, including the magnetictrip (101) accessed in circuit, magnetic sheet (104), after circuit is short-circuited, described magnetictrip (101) produces magnetically-actuated magnetic sheet (104) and moves to trigger position from initial position, and then makes trigger member (31) motion make circuit breaker tripping；

Second dropout drive mechanism, controlled by described controller (109) and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time, make circuit breaker tripping by the second dropout drive mechanism trigger member (31) motion.

Circuit breaker actuating mechanism the most according to claim 2, it is characterised in that

Pressing piece (105) it is provided with between described magnetic sheet (104) and described trigger member (31), described magnetic sheet (104) drives described pressing piece (105) to move along a straight line when rotating, and then drive trigger member (31) motion, being additionally provided with the 4th elastic component (102) on described pressing piece (105), described 4th elastic component (102) applies the power away from described trigger member (31) or the component of power to described pressing piece (105).

Circuit breaker actuating mechanism the most according to claim 3, it is characterized in that, described pressing piece (105) includes the transverse slat that one end coordinates and the riser fixed with the described transverse slat other end with described magnetic sheet (104), the other end of described riser is for contacting with described trigger member (31) and driving described trigger member (10) to move, become to have spring mounting groove (1051) in the middle of described transverse slat, described riser is hooked in described 4th elastic component (102) one end, and the other end is fixed.

5. according to the circuit breaker actuating mechanism described in claim 3 or 4, it is characterized in that, described trigger member (31) has rod body, described rod body one end forms the first extension (314) coordinated with described pressing piece (105), middle part extends to side and forms the second extension (313) coordinated with described second dropout drive mechanism, and the other end has the 3rd extension (312) driving electrical apparatus release motion.

Circuit breaker actuating mechanism the most according to claim 5, it is characterised in that described 3rd extension (312) forms the extension rod (311) parallel with the rotating shaft of described trigger member (31) (315).

7. according to the circuit breaker actuating mechanism described in claim 3 or 4, it is characterized in that, being provided with the first elastic component (32) in described trigger member (31), described first elastic component (32) applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member (31).

8. according to the circuit breaker actuating mechanism described in claim 3 or 4, it is characterized in that, also include locating part (103), it is arranged in the direction of motion that described magnetic sheet (104) is acted on by described magnetictrip (101), for stopping that after described magnetic sheet (104) moves to trigger position described magnetic sheet (104) is rotated further.

Circuit breaker actuating mechanism the most according to claim 5, it is characterized in that, described second dropout drive mechanism, including the second electromagnet (108), actuator (107), the controlled device of described second electromagnet (108) (109) produces actuator (107) described in magnetic force moving after controlling and being energized, and described actuator (107) moves between the first position and the second position and drives described trigger member (31) during moving to the second position from primary importance.

Circuit breaker actuating mechanism the most according to claim 9, it is characterized in that, also including restoring board (812), described restoring board (812), after electrical apparatus release releases and threads off, is used for promoting described actuator (107) to return primary importance.

11. according to the circuit breaker actuating mechanism described in any one of claim 1-4, it is characterised in that

Described electrical apparatus release, including: rotating turret (54), snap close (12), tripping (11), snap close (12) is arranged on rotating turret (54) by the 5th rotating shaft (75) and above and can rotate around the 5th rotating shaft (75), and tripping (11) and rotating turret (54) are fixed on inner fixed stand (61) by common the second rotating shaft (72)；Described snap close (12) is connected with described handle (41) by described second connecting rod (42)；Tripping (11) has the linkage status locked together with described snap close (12) and the released state separated with described snap close (12), and described tripping (11) drives described handle (41) to move to open position by described second connecting rod (42) after separating with described snap close (12) and realizes the dropout separating brake of chopper.

12. according to the circuit breaker actuating mechanism described in any one of claim 1-4, it is characterised in that

Also including power saving features, described power saving features can turn to make described coil (22) power-off during closing position by described handle (41).