CN105575737A - Circuit breaker operating mechanism and circuit breaker - Google Patents
Circuit breaker operating mechanism and circuit breaker Download PDFInfo
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- CN105575737A CN105575737A CN201610146653.XA CN201610146653A CN105575737A CN 105575737 A CN105575737 A CN 105575737A CN 201610146653 A CN201610146653 A CN 201610146653A CN 105575737 A CN105575737 A CN 105575737A
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- handle
- circuit breaker
- iron core
- rotating shaft
- tripping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- Electromagnetism (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a circuit breaker operating mechanism. A handle can rotate between a brake separating position and a brake closing position under the effect of external force so as to be corresponding to brake separating and brake closing of a circuit breaker. A second connecting rod is connected with the handle and a release. When the handle is rotated to the brake closing position, the rotating angle of the handle is greater than a rotating angle required when the center lines of the pivotal shafts of the two ends of the second connecting and the rotating shaft of the handle are coplanar. The second connecting rod applies force to the handle for being away from the brake separating position continuously at the brake closing position so that force applied to the handle for returning to the brake separating position by a first driving rod can be resisted, self-locking can be realized, and thus a situation that a moving iron core is away from a static iron core due to power outage of a coil can be prevented and the moving iron core and the static iron core are maintained to be contacted. According to the circuit breaker operating mechanism, the second connecting rod is arranged to be connected with the handle and the release, and self-locking is realized by arrangement of the brake closing position so that the components of the original circuit breaker can be fully utilized, and the structure of the whole circuit breaker operating mechanism is enabled to be simpler and more reliable.
Description
Technical field
The invention discloses a kind of circuit breaker operation mechanism and circuit breaker, belong to Low Voltage Electrical Apparatus.
Background technology
The multi-functional terminal end electrical equipment of integrated form is called control and protective switching device (being called for short CPS) in the world, is a kind of electrical equipment dividing the major function of electrical ionizer element to be comprehensively integrated circuit breaker and isolator, thermal relay etc.In the application of its circuit breaker, compare motor operation mechanism, electromagnetic mechanism has breaking speed and breaking capacity faster, but electromagnetic mechanism is when closing a floodgate, and must be energized for a long time keep the adhesive of sound iron core by coil, thus at substantial electric energy.Therefore, the electromagnetic mechanism of circuit breaker can introduce a kind of operating mechanism, after electromagnetic mechanism can being made to close a floodgate by this operating mechanism, coil no power also can make dynamic and static iron core keep adhesive, thus realize energy-saving and emission-reduction, meanwhile, require that this operating mechanism needs in electricity consumption loop to allow the dynamic and static iron core disjunction of electromagnetic mechanism to realize the separating brake of circuit breaker during power-off.
The operating mechanism of prior art, as Chinese patent literature CN2044803280U discloses a kind of compact electromagnetic operating mechanism, comprise electromagnetic mechanism, reaction spring and divide-shut brake assembly, divide-shut brake assembly comprises and to be arranged at above electromagnetic mechanism and the lever dolly extended in the horizontal direction and the fixed pivot that lever dolly is rotated around it, and reaction spring is mounted on the side of lever dolly; In the middle part of lever dolly, iron core is moved by the anatomical connectivity that is connected in appropriate location, thus makes lever dolly pass through to rotarily drive dynamic iron core rectilinear motion can not to interfere; Also comprise energy-saving mechanism, comprise lock catch unit and power saving unit, lock catch unit is used for the dynamic iron core moving to attracted position to pin, meanwhile, the power-off of power saving unit control coil, thus realize electromagnetic operating mechanism close a floodgate time without the need to energising, save a large amount of electric energy.Described compact electromagnetic operating mechanism, when separating brake, lock catch unit removes the locking to dynamic iron core, make iron core away from static iron core by reaction spring effect, meanwhile, lever dolly rotates thus the moving contact on lever dolly is rotated away from fixed contact, realizes separating brake.
Above-mentioned circuit breaker operation mechanism relies on and the co-rotational locking piece of handle, and when handle turns to closing position, locking piece is against the lateral pin living to drive dynamic iron core motion, the reposition of anti-stop iron core, thus can when coil blackout, dynamic iron core is not separated with static iron core, and making energy-conservationly becomes possibility.But above-mentioned electromagnetic operating mechanism is owing to additionally needing to arrange the parts such as locking piece, and complex structure, take expensive real estate in circuit breaker, reliability is lower.
Summary of the invention
The present invention will solve complex structure in the circuit breaker operation mechanism of prior art, technical problem that reliability is lower, provide for this reason a kind of structure simply, circuit breaker operation mechanism more reliably.
A kind of circuit breaker operation mechanism provided by the invention, comprising:
Electromagnetic mechanism, comprises dynamic iron core, coil and static iron core;
Handle, can rotate under external force between the open position corresponding with circuit-breaker switching on-off and closing position;
Second connecting rod, connects described handle and release, when described handle turns to closing position, the rotational angle of described handle be greater than the center line of the pivotal axis at the two ends of described second connecting rod and the rotating shaft of handle coplanar time required rotational angle;
First drive rod, connects described handle and described dynamic iron core, when described handle moves between closing position and open position, drive described dynamic iron core near or away from static iron core;
Stake body, is fixed with power transmission shaft and is provided with the moving contact and the 3rd elastic component that coordinate with fixed contact;
When described handle moves from open position to closing position, press described power transmission shaft by described first drive rod thus described stake body is rotated, moving contact is contacted with fixed contact, when described handle moves from closing position to open position, described first drive rod decontrols the pressing to described power transmission shaft, thus under the effect of described 3rd elastic component, described stake body rotates and makes moving contact be separated with fixed contact.
Further, also comprise handle spring, for applying to go to the power of open position or the component of power to handle.
Again further, described handle spring is set on the rotating shaft of described handle, and one end is resisted against in the second rotating shaft of described release, the other end laterally penetrates in described handle.
Preferably, described release, comprising: rotating turret, snap close, tripping, and snap close is arranged on by the 5th rotating shaft also can around the 5th axis of rotation on rotating turret, 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 be separated with described snap close, drives described handle motion to realize the dropout separating brake of circuit breaker to open position after described tripping is separated with described snap close by described second connecting rod.
Preferably, also comprise power saving features, described power saving features can make described coil blackout when turning to closing position by described handle.
Further, described power saving features comprises the pressing piece arranged that to link with described stake body, the sensitive switch of control coil connecting and disconnecting of the circuit, when described stake body rotates and makes iron core contact with static iron core, described pressing piece can press described sensitive switch thus make described coil blackout.
Again further, described pressing piece is linked by described power transmission shaft and described dynamic iron core, described pressing piece forms the long lumbar hole holding described power transmission shaft, when described power transmission shaft is in company with the motion of described stake body, drive described pressing piece near or away from described sensitive switch.
Preferably, described moving contact and described 3rd elastic component lay respectively at the both sides of described power transmission shaft.
Preferably, described second connecting rod has two, and two described second connecting rods are coplanar and be positioned at the both sides of described handle and release.
A kind of circuit breaker that the present invention also provides, comprises housing, is positioned at the binding post of housing both sides, arc-control device, tripping driving device, and circuit breaker operation mechanism as above, described tripping driving device can drive release to complete dropout separating brake when circuit abnormality.
The present invention has the following advantages relative to prior art:
1. circuit breaker operation mechanism disclosed by the invention, handle can rotate under external force between open position and closing position, the separating brake of corresponding circuit breaker and separating brake.Second connecting rod connects described handle and release, when handle is turned to closing position, the rotational angle of handle be greater than the center line of the pivotal axis at the two ends of second connecting rod and the rotating shaft of handle coplanar time required rotational angle, namely handle turns in the process of closing position, when the pivotal axis at second connecting rod two ends and rotating shaft coplanar time, this is the critical localisation of handle divide-shut brake, handle does not rotate when reaching this position can return open position, and handle is rotated further exceedes this critical localisation and could arrive closing position, the now pivotal axis at second connecting rod two ends and the three-point shape triangularity of rotating shaft.When being positioned at closing position, second connecting rod applies to continue the power away from open position to handle, thus the power returning open position that the first drive rod applies to handle can be resisted, achieve self-locking, therefore can stop and cause dynamic iron core away from static iron core because of coil blackout, iron core and static iron core are kept in touch.Described circuit breaker operation mechanism, by arranging second connecting rod connecting handle and release, and realizing self-locking by arranging closing position, taking full advantage of the parts of former circuit breaker, makes the structure of whole circuit breaker operation mechanism more simple, reliable.
2. circuit breaker operation mechanism disclosed by the invention, described stake body is fixed with power transmission shaft and is provided with the moving contact and the 3rd elastic component that coordinate with fixed contact.When described handle moves to closing position from open position, press described power transmission shaft by described first drive rod thus described stake body is rotated, moving contact being contacted with fixed contact, thus realizes the combined floodgate of circuit breaker.When described handle moves from closing position to open position, described first drive rod decontrols the pressing to described power transmission shaft, thus under the effect of described 3rd elastic component, described stake body rotates and moving contact is separated with fixed contact, thus realizes the separating brake of circuit breaker.
3. also comprise energy-saving mechanism, described energy-saving mechanism, after dynamic iron core contact static iron core, realizes controlling the power-off of coil by press-side or contact pressing sensitive switch, and then realizes the energy-saving and emission-reduction of circuit breaker.Now because handle is maintained at closing position, therefore move the state that iron core still can keep contacting with static iron core in the cold situation of coil, make the moving contact of circuit breaker and fixed contact keep adhesive.Under only having the tripping driving device effect of circuit breaker internal, tripping is separated with snap close, handle disequilibrium is made to turn to open position, or directly on handle, make it turn to open position by External Force Acting, the moving contact of circuit breaker can be made to be separated with fixed contact, breaker open operation.
4. operating mechanism disclosed by the invention, when the release be connected with second connecting rod moves, the handle balanced being positioned at closing position is destroyed and turns to open position, thus make the tripping driving device of circuit breaker internal can turn to open position by release driving handle from closing position, namely circuit breaker realizes automatic brake separating under the effect not having external force.And tripping driving device drives release under there is the situations such as short circuit, overvoltage, under-voltage, overload in circuit; handle is made to turn to open position; breaker open operation; therefore; adopt the circuit breaker of operating mechanism of the present invention can provide the common protections such as overvoltage, under-voltage, overload for circuit, and short-circuit protection.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the connection diagram of a kind of electromagnetic operating mechanism of the present invention and electromagnetic mechanism;
Fig. 2 is the structural representation of tripping of the present invention;
Fig. 3 is the structural representation of snap close of the present invention;
Fig. 4 is the structural representation of trigger member of the present invention;
Fig. 5 is the part-structure schematic diagram of electromagnetic operating mechanism of the present invention;
Fig. 6 is the rearview of electromagnetic operating mechanism of the present invention;
Fig. 7 is the internal structure schematic diagram of electromagnetic operating mechanism of the present invention;
Fig. 8 is electromagnetic operating mechanism of the present invention and circuit breaker assembled front view;
Fig. 9 is the structural representation of circuit breaker of the present invention;
Figure 10 is the outside schematic diagram of circuit breaker of the present invention;
Figure 11 is tripping driving device schematic diagram in circuit breaker of the present invention;
Reference numeral: A1-shell; A3-binding post;
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-second extension;
314-first extension; 315-rotating shaft;
32-first elastic component; 33-handle spring; 34-the 3rd elastic component;
41-handle; 42-second connecting rod; 43-first drive rod;
51-first lock link; 52-second lock link; 53-the 3rd lock link; 54-rotating part;
61-inner fixed stand; 62-stake body.
71-power transmission shaft; 72-second rotating shaft; 73-rotating 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-second electromagnet.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In addition, if below in the described different execution mode of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment 1
The present embodiment provides a kind of circuit breaker operation mechanism, as shown in Fig. 1, Fig. 5, Fig. 7, comprising:
Electromagnetic mechanism, comprises dynamic iron core 21, coil 22 and static iron core 23;
Handle 41, can rotate under external force between the open position corresponding with circuit-breaker switching on-off and closing position;
Second connecting rod 42, connect described handle 41 and release, when described handle 41 turns to closing position, the rotational angle of described handle 41 be greater than the center line of the pivotal axis at the two ends of described second connecting rod 42 and the rotating shaft 73 of handle 41 coplanar time required rotational angle;
First drive rod 43, connects 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 moving contact and the 3rd elastic component 34 that coordinate with fixed contact;
When described handle 41 moves from open position to closing position, press described power transmission shaft 71 by described first drive rod 43 thus described stake body 62 is rotated, moving contact is contacted with fixed contact, when described handle 41 moves from closing position to open position, described first drive rod 43 decontrols the pressing to described power transmission shaft 71, thus under the effect of described 3rd elastic component 34, described stake body 62 rotates and makes moving contact be separated with fixed contact.
In the present embodiment, particularly, in electromagnetic mechanism, coil 22 and static iron core 23 are fixed on inner fixed stand 61, dynamic iron core 21 is by the first drive rod 43 connecting handle 41, and dynamic iron core 21 can produce magnetic force near static iron core 23, accordingly breaker closing when coil 22 is energized, and when moving iron core 21 away from static iron core 23, 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, also can be driven by circuit breaker internal tripping driving device and turn to open position by closing position.After handle 41 turns to closing position, coil 22 is energized and produces magnetic force, and dynamic iron core 21 is near static iron core 23 under magneticaction, and stake body 62 rotates and moving contact contacted with fixed contact make circuit breaker realize closing a floodgate simultaneously.
Second connecting rod 42 connects described handle 41 and release, as shown in Figure 7, when described handle 41 turns to closing position, the rotational angle of handle 41 be greater than the center line of the pivotal axis at the two ends of described second connecting rod 42 and the rotating shaft 73 of handle 41 coplanar time required rotational angle, namely handle 41 turns in the process of closing position, when the pivotal axis at second connecting rod 42 two ends and rotating shaft 73 coplanar time, this is the critical localisation of handle divide-shut brake, if handle 41 does not rotate when reaching this position can return open position, and handle 41 is rotated further exceedes this critical localisation and could arrive closing position, the now pivotal axis at second connecting rod two ends and the three-point shape triangularity of rotating shaft 73 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, thus the power returning open position that the first drive rod 43 applies to handle 41 can be resisted, handle achieves self-locking, therefore can stop causes dynamic iron core 21 away from static iron core 23 because of coil 22 power-off, and iron core 21 and static iron core 23 are kept in touch.Above-mentioned circuit breaker operation mechanism, by arranging second connecting rod 42 connecting handle 41 and release, and realizing self-locking by arranging closing position, taking full advantage of the parts of former circuit breaker, makes the structure of whole circuit breaker operation mechanism more simple, reliable.
As shown in Figure 7, the first drive rod 43 connecting handle 41 and dynamic iron core 21, when described handle 41 rotates between closing position and open position, accordingly described dynamic iron core 21 near or away from static iron core 23, the also combined floodgate of corresponding circuit breaker and separating brake.
Stake body 62 be fixed with power transmission shaft 71 and be provided with the moving contact and the 3rd elastic component 34 that coordinate with fixed contact, the 4th rotating shaft 74 is provided with on the stake body of the 3rd elastic component 34 end, described the 4th rotating shaft 74 being fixed on inner fixed stand 61 is between the 3rd elastic component 34 and rotation axis 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 moving contact contact fixed contact on stake body 62, 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 anglec of rotation of stake body 62 around the 4th rotating shaft 74, the scope that the described anglec of rotation is arranged can make the moving contact of circuit breaker and fixed contact effectively contact or disjunction.
The circuit breaker operation mechanism of the present embodiment, when handle 41 moves from open position to closing position, the dynamic iron core 21 of coil 22 energising produces to the close movement tendency of static iron core 23, simultaneously 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, make moving contact contact fixed contact, circuit breaker realizes closing a floodgate; When handle moves from closing position to open position, handle 41 orders about the first drive rod 43 and decontrols pressing to power transmission shaft 71, make dynamic iron core 21 away from described static iron core 23, stake body 62 is rotated counterclockwise around the 4th rotating shaft 74 such as Fig. 8 under the effect of the 3rd elastic component 34, make moving contact away from fixed contact, circuit breaker realizes separating brake.Thus the shutting-brake control realized when being rotated between closing position and open position by handle 41 circuit breaker and separating brake control.
The circuit breaker operation mechanism of the present embodiment, also comprises handle spring 33, for applying to go to the power of open position or the component of power to handle 41.
If handle 41 does not arrive closing position when closing a floodgate and removes the active force to handle 41, handle spring 33 can make handle 41 return open position, to prevent misoperation, improves the fail safe of circuit breaker.When release moves by circuit breaker internal tripping driving device triggers trigger member 31 simultaneously, the movement tendency that one turns to open position is produced in effect lower handle 41 disequilibrium of second connecting rod 42, 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 release and under the acting in conjunction of handle spring 33, successfully can turn to open position from closing position, realize separating brake fast.Described handle spring 33 is preferably torsion spring.
Described handle spring 33 is set on the rotating shaft 73 of described handle 41, and one end is resisted against in the second rotating shaft 72 of described release, the other end laterally penetrates in described handle 41.
Described handle spring 33 is located on rotating shaft 73 with handle 41 coaxial sleeve, one arm of handle spring 33 is resisted against in the second fixing rotating shaft 72, another arm laterally penetrates handle 41 and follows handle 41 and rotate, when handle 41 rotates to closing position, handle spring 33 two-arm angle is storage power by compressing, thus generation one makes handle 41 turn to the power of open position or the component of power.
Described release, comprising: rotating turret 54, snap close 12, tripping 11, and snap close 12 is arranged on rotating turret 54 by the 5th rotating shaft 75 and also can rotates 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 be separated with described snap close 12, by described second connecting rod 42 drive described handle 41 to move to dropout separating brake that open position realizes circuit breaker after described tripping 11 is separated with described snap close 12.
As shown in Figure 2, described tripping 11 has plate body 111, and the cylindricality installation portion 112 be molded over 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 tripping 11 can be arranged in the second rotating shaft 72 and rotate around the second rotating shaft 72.Described plate body 111 forms locked groove 1111, and the outside opening of locked groove 1111 is greater than inside opening.Extension 113 on cylindricality installation portion 112 forms the drive hole 1131 parallel with the axle of cylindricality installation portion 112, and described drive hole 1131 is connected with the extension rod 311 of described trigger member 31, thus the interlock realizing described tripping 11 and trigger member 31 is arranged.
As shown in Figure 3, described snap close 12 comprises 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 trapezoidal projection greatly, matches with described locked groove 1111, can effectively link to make tripping 11 and snap close 12.As one distortion, described protruding 122 can be 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 equals inside opening.Forming the reinforcement projection 124 for reinforcing tripping 12 in the middle part of described snap close body 121, strengthening the ability that snap close body 121 bears internal stress, thus improving the useful life of snap close 12.Described snap close side plate 123 forms the rotating shaft installing hole 1231 passed for the 5th rotating shaft 75, and for the second connecting rod installing hole 1232 that described second connecting rod 42 stretches into, the internal diameter of described rotating shaft installing hole 1231 and the external diameter of the 5th rotating shaft 75 match and snap close 12 accurately can be rotated around the 5th rotating shaft 75, the internal diameter of described second connecting rod installing hole 1232 and the external diameter of second connecting rod 42 match, thus handle 41 and snap close 12 can be linked accurately and efficiently.
Described rotating turret 54 is linked by linkage and rotation axis 71, rotating turret 54 is by snap close 12 and second connecting rod 42 connecting handle 41, power transmission shaft 71 is fixed on stake body 62, thus interaction relation is set up between described handle 41 and stake body 62, make handle 41 can control the moving contact of circuit breaker close to or away from moving contact, enable circuit breaker separating brake quickly and efficiently.Described linkage, comprise the first lock link 51, second lock link 52 and the 3rd lock link 53, one end of described three lock links is coaxially connected to Q point, the other end Q1 of the first lock link 51 is arranged on inner fixed stand 61 and can not moves, the other end Q2 of the second lock link 52 be fixed on power transmission shaft 71 with its interlock, the other end Q3 of the 3rd lock link 53 is connected with described rotating turret 54.Q2 point with rotation axis 71 when the 4th rotation axis 72 rotates clockwise in arcuate socket 91, because 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 driven to rotate counterclockwise thus, otherwise, described for driving rotating turret 54 such as Fig. 5, rotates clockwise with rotation axis 71 by Q2 point when the 4th rotation axis 72 rotates counterclockwise in arcuate socket 91.In like manner, if described rotating turret 54 is rotated clockwise around the second rotating shaft 72 by driving, then rotation axis 71 will rotate counterclockwise around the 4th rotating shaft 74, and process is contrary with above-mentioned motion process.
Above by analysis, 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 and second connecting rod 42 also keep balancing.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, thus snap close 12, second connecting rod 42 and handle 41 is made to be in poised state.When circuit breaker be short-circuited, overvoltage, overload, the situation such as under-voltage time its in tripping driving device drive trigger member 31 and tripping 11 such as Fig. 5 turned clockwise, tripping 11 is removed and is limited the motion of snap close 12, namely tripping 11 is separated with snap close 12, thus snap close 12 such as Fig. 5 is rotated 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, because the snap close 12 on rotating turret 54 is rotated counterclockwise around the 5th rotating shaft 75 as Fig. 5, rotating turret 54 is turned clockwise, therefore rotation axis 71 can be rotated counterclockwise as Fig. 5, stake body 62 synchronous rotary makes dynamic iron core away from static iron core, breaker open operation.
The circuit breaker operation mechanism of the present embodiment also comprises power saving features, and described power saving features can make the power-off of described coil 22 when turning to closing position by described handle 41.
After handle 41 turns to closing position, coil 22 power-off, now, if do not have the tripping driving device of direct External Force Acting in handle 41 or circuit breaker to drive trigger member 31 to cause tripping 11 to be separated with snap close 12, then handle 41 still remains on closing position, accordingly, described dynamic iron core 21 keeps in touch with static iron core 23, thus achieves the energy-saving and emission-reduction of circuit breaker.
Particularly, described power saving features comprises the pressing piece 81 arranged that to link with described stake body 62, as described in Figure 9, described pressing piece 81 is mounted on inner fixed stand 61, can move up and down on inner fixed stand 61, thus the sensitive switch 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 sensitive switch thus make the power-off of described coil 22.
As described in Figure 5, described pressing piece 81 links with stake body 62 and arranges, and pressing piece 81 forms press-side 811, the below of press-side 811 is provided with the sensitive switch with control coil 22 switching electricity.Dynamic iron core 21 is near static iron core 22 and be pulled together, and handle 41 turns to closing position, and the stake body 62 being provided with moving contact rotates and makes moving contact contact fixed contact, and breaker closing, then press-side 811 presses sensitive switch and makes the power-off of described coil 22.Owing to forming poised state under the effect of the handle 41 at closing position at second connecting rod 42 and the first drive rod 43, therefore after coil 22 power-off, described dynamic iron core 21 still can keep in touch with described static iron core 22, moving contact on circuit breaker cradle body 62 and the fixed contact of circuit breaker still keep in touch, thus achieve the energy-saving and emission-reduction of circuit breaker.
Particularly, described pressing piece 81 is linked with described dynamic iron core 21 by described power transmission shaft 71, described pressing piece 81 forms the long lumbar hole holding described power transmission shaft 71, when described power transmission shaft 71 moves in company with described stake body 62, drive described pressing piece 81 near or away from described sensitive switch, press sensitive switch to press or to contact.
As described in Figure 9, 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 by power transmission shaft 71 and described dynamic iron core 21, because 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 horizontal direction and vertical direction, the motion that vertical direction uploads moving axis 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.
Described moving contact and described 3rd elastic component 34 lay respectively at the both sides of described power transmission shaft 71.
As shown in Figure 8, the two ends of stake body 62 are respectively arranged with moving contact and the 3rd elastic component 34, the other end of described 3rd elastic component 34 is mounted on inner fixed stand 61,4th rotating shaft 74 is arranged between the 3rd elastic component 34 and power transmission shaft 71, stake body 62 can lean around the 4th rotating shaft 74 and rotate, and the power transmission shaft 71 be arranged on stake body 62 can rotate in the arcuate socket 91 of inner fixed stand 61.The position of described stake body when Fig. 8 is breaker open operation, now, described moving contact is away from fixed contact, and the 3rd elastic component 34 is in initial condition; And when breaker closing, stake body 62 makes the moving contact on it near the fixed contact of circuit breaker around the 4th rotating shaft 74 dextrorotation as shown in Figure 8,3rd elastic component 34 is stretched distortion, power transmission shaft 71 simultaneously on stake body 62 is pressed by the first drive link 43 by handle 41, makes the moving contact of circuit breaker and fixed contact keep adhesive.When handle 41 turns to open position, described power transmission shaft 71 is no longer pressed by the first drive link 43, and under the effect of the 3rd elastic component 34 of distortion, stake body 62 disequilibrium and rotating around the 4th rotating shaft 74, makes the moving contact of circuit breaker be separated with fixed contact.
Described second connecting rod 42 has two, and two described second connecting rods 42 are coplanar and be positioned at the both sides of described handle 41 and release.
As shown in Figure 5, two second connecting rods 42 can make the active force being parallel to handle 41 and release rotor shaft direction acting on handle 41 and release cancel out each other, prevent handle 41 and release rotating shaft therefore active force rupture, and two second connecting rods 42 also can improve structural strength.
Embodiment 2
The present embodiment provides a kind of circuit breaker, as shown in Figure 10, comprising: housing A1, be positioned at the binding post A3 of housing A1 both sides, arc-control device, tripping driving device, and operating mechanism, described tripping driving device can drive release to complete dropout separating brake when circuit abnormality.
Described binding post A3 comprises circuit breaker and enters electric connecting terminals and go out electric connecting terminals.
Between the moving contact of described arc-control device in circuit breaker and fixed contact, the electric arc produced during for eliminating moving contact and fixed contact disjunction, ensures safety utilization of electric power.
Described tripping driving device drives release by trigger member 31 and makes handle 41 turn to open position, circuit breaker tripping separating brake.Particularly, tripping driving device comprises the first dropout driving mechanism and the second dropout driving mechanism.First dropout driving mechanism comprises the magnetictrip be made up of some wires, when in circuit breaker there is short circuit current in circuit, magnetictrip drives circuit breaker to realize quick acting switching-off, thus to be realized circuit breaker reliably by the first dropout driving mechanism, short-circuit protection fast and effectively; Second dropout driving mechanism and control assembly cooperating; after described control assembly monitors the various faults situation in circuit; drive the second dropout driving mechanism motion and trigger release and make circuit breaker tripping separating brake, realizing the overvoltage to circuit breaker, overcurrent, the protection such as under-voltage.Therefore, circuit breaker disclosed by the invention, both can provide overvoltage, overcurrent, the common protection protection such as under-voltage for circuit, and can provide reliably again for circuit, short-circuit protection fast and effectively.In addition, the control assembly of circuit breaker can realize connecting by WIFI and PAD, computer, is used to open or close the function of control assembly.As shown in figure 11, in first dropout driving mechanism the big current of magnetictrip 101 when short circuit of place in circuit effect under, the powerful magnetic drive magnetic sheet 104 of rapid generation moves to trigger position from initial position, described magnetic sheet 104 one end is connected on pressing piece 105, by pressing piece 105, trigger member 31 is moved, thus making circuit breaker tripping, the whole process of dropout is less than 10ms.The the first dropout driving mechanism arranging electromagnetic trip mode can provide fast for circuit breaker, reliable, effective short-circuit protection.
Certainly, controller also can voltage in an acquisition cuicuit or electric current as required, provides the monitoring of voltage or electric current and corresponding protection.
Further, pressing piece 105 is provided with between described magnetic sheet 104 and described trigger member 31, described magnetic sheet 104 drives described pressing piece 105 to do rectilinear motion when rotating, and then drive trigger member 31 to move, described pressing piece 105 is also provided with the 4th elastic component 102, described 4th elastic component 102 applies away from the described power of trigger member 31 or the component of power to described pressing piece 105.
Magnetic sheet 104 one end of first dropout driving mechanism is connected on pivotal axis, and the other end is connected with pressing piece 105, pressing piece 105 is provided with the 4th elastic component 102 making itself and magnetic sheet 104 turn back to initial position.Magnetic sheet 104 rotate under the effect of magnetictrip 101 and drive pressing piece 105 resist the 4th elastic component 102 move drive trigger member 31.
Again further, described pressing piece 105 comprises the transverse slat that one end coordinates with described magnetic sheet 104 and the riser fixed with the described transverse slat other end, the other end of described riser is used for contacting with described trigger member 31 and driving described trigger member 31 to move, become to have spring fitting 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 shown in figure 11, described pressing piece 105 comprises the transverse slat and the riser fixing with the described transverse slat other end that one end coordinates with described magnetic sheet 104, and 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 when initial position, magnetic sheet 104 perpendicular to pressing piece 105 transverse slat, be parallel to the riser of magnetic sheet 104, pressing piece 105 is in poised state.Described transverse slat intermediary form has the mounting groove 1051 of installation the 4th elastic component 102.Under the magneticaction of magnetictrip 101, magnetic sheet 104 rotates and links with pressing piece 105, overcome the elastic force of the 4th elastic component 102 and drive and close trigger member 31, first extension 314 of riser to trigger member 31 of pressing piece 105 applies power, make trigger member 31 do anticlockwise rotation in Fig. 1, final driving trigger member 31 is rotated and is made circuit breaker tripping.After circuit breaker tripping, whole breaker open operation, current vanishes, magnetictrip 101 does not produce magnetic force, the power then pressing piece 105 pointing to trigger member 31 direction disappears, rebounded pressing piece 105 to be with by the 4th elastic component 102 producing distortion and be back to initial position, magnetic sheet 104 part 105 that is pressed drives and also gets back 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 5, middle part extends to form the second extension 313 coordinated with described second dropout driving mechanism to side, the other end has the 3rd extension 312 driving the motion of dropout part.
Trigger member 31 body is rod, one end of the rod body of trigger member 31 forms the first extension coordinated with described pressing piece 105, the other end has the 3rd extension 312 driving the motion of dropout part, and centre extends to form the second extension 313 coordinated with the actuator 107 of described second dropout driving mechanism to side.The pressing piece 105 of the first dropout driving mechanism moves to trigger position by initial position and exerts a force to the first extension 314, or the actuator 107 of the second dropout driving mechanism moves to the second place by primary importance and exerts a force to the second extension 313, then trigger member 31 Forced rotation, the 3rd extension 312 drives the dropout part of circuit breaker.By the setting of the first extension 314, second extension 313 and the 3rd extension 312, make trigger member 31 form rational structure, trigger member 31 can trigger dropout part and complete dropout under the drive of the first dropout driving mechanism or the second dropout driving mechanism.
Further, described 3rd extension 312 forms the extension rod 311 parallel with the rotating shaft 315 of described trigger member 31.
Described 3rd extension 312 forms extension rod 311, described extension rod 311 is parallel with the rotating shaft 315 of described trigger member 31, the dropout part of circuit breaker and rotating shaft 315 are coaxially arranged, and the dropout part of described extension rod 311 also connecting breaker, thus described trigger member 31 can realize synchronous axial system with the dropout part of circuit breaker.As shown in figure 11, first extension 314 of described trigger member 31 or the second extension 313 stressed and described trigger member 31 is rotated counterclockwise around its rotating shaft 315, described trigger member 31 drives the dropout part of circuit breaker to be rotated counterclockwise along Figure 11 direction simultaneously, thus realizes the dropout of circuit breaker.
Described trigger member 31 is provided with the first elastic component 32, described first elastic component 32 applies to make elastic force that the circuit breaker tripping direction of motion is contrary or elastic force component to described trigger member 31.
Described trigger member 31 is provided with first elastic component 32, first elastic component 32 one end to be articulated in described trigger member 31, the other end is mounted on inner fixed stand 61.
Trigger member 31 is connected with dropout part by extension rod 311, first extension 314 exerts a force by the first dropout driving mechanism, or the second extension 313 exerts a force by the second dropout driving mechanism, due to the first extension 314 or the second extension 313 stressed, make trigger member 31 resist the first elastic component 32 315 rotate and make the 3rd extension 312 trigger dropout part around the shaft, thus make circuit breaker tripping.After circuit breaker tripping, first dropout driving mechanism and/or the second dropout driving 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 gets back to initial position, drive the dropout part of circuit breaker to get back to initial position simultaneously, perform dropout in order to next time.
The tripping driving device that the present embodiment provides, also comprises locating part 103, is arranged in the direction of motion of described magnetic sheet 104 by described magnetictrip 101 effect, for stopping that after described magnetic sheet 104 moves to trigger position described magnetic sheet 104 is rotated further.
Described locating part 103 prevents the 4th elastic component 102 elastic deformation from exceeding allowed band and reduction of service life for the anglec of rotation of magnetic sheet 104 after limiting short circuit, and can prevent magnetic sheet 104 contact wire and produce magnetic sheet 104 and damage.
Described second dropout Drive Structure mechanism, comprise the second electromagnet 108, actuator 107, described second electromagnet 108 produces actuator 107 described in magnetic force moving after being controlled by the controller and being energized, and described actuator 107 moves between the first position and the second position and drive described trigger member 31 in the process moving to the second place from primary importance.
Described controller determines whether to start described second electromagnet 108 after carrying out analyzing and processing after detecting the data of collecting power supply and electric current, makes it promote described actuator 107.If described second electromagnet 108 starts, described actuator 107 is moved to second place 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 comprises restoring board 812, and described restoring board 812, after dropout removed by release, returns primary importance for promoting described actuator 107.
Described restoring board 812 links with the dynamic iron core of circuit breaker and arranges, after circuit breaker tripping, described restoring board 812 can release remove thread off after the snap close of i.e. release to relock with tripping together with after, described actuator 107 is driven to get back to primary importance (restoring board 812 moves upward in fig .9, reduces the overhang of actuator 107) by the second place.
Further, described magnetictrip 1 is the some wires be arranged side by side.Magnetictrip 1 is made up of 4 wires, can certainly be the wire of other quantity, as 1,2,3 or 5,6 etc.
Described magnetictrip 101 is the wire in place in circuit, wire itself plays electric action, magnetic field can be produced again simultaneously, simplify the structure of circuit breaker, multiple conducting wires is set and can produces stronger magnetic force when there is short circuit current, thus can respond in real time, fast and make circuit breaker tripping.
Owing to adopting the operating mechanism described in embodiment 1, thus there is the advantage of operating mechanism described in embodiment 1.
As shown in Figure 10, the circuit breaker 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, in the lockhole that projection on described plectrum 92 stretches into handle 41, handle can not be rotated, thus can prevent from, in circuit maintenance mistiming, handle 41 is turned to open position and initiation electrification.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (10)
1. a circuit breaker operation mechanism, is characterized in that, comprising:
Electromagnetic mechanism, comprises dynamic iron core (21), coil (22) and static iron core (23);
Handle (41), can rotate under external force between the open position corresponding with circuit-breaker switching on-off and closing position;
Second connecting rod (42), connect described handle (41) and release, when described handle (41) turns to closing position, the rotational angle of described handle (41) be greater than the center line of the pivotal axis at the two ends of described second connecting rod (42) and the rotating shaft (73) of handle (41) coplanar time required rotational angle;
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 moving contact and the 3rd elastic component (34) that coordinate with fixed contact;
When described handle (41) moves from open position to closing position, press described power transmission shaft (71) by described first drive rod (43) thus described stake body (62) is rotated, moving contact is contacted with fixed contact, when described handle (41) moves from closing position to open position, described first drive rod (43) decontrols the pressing to described power transmission shaft (71), thus under the effect of described 3rd elastic component (34), described stake body (62) rotates and makes moving contact be separated with fixed contact.
2. circuit breaker operation mechanism according to claim 1, is characterized in that, also comprises handle spring (33), for applying to go to the power of open position or the component of power to handle (41).
3. circuit breaker operation mechanism according to claim 2, it is characterized in that, described handle spring (33) is set on the rotating shaft 73 of described handle (41), and one end is resisted against in the second rotating shaft 72 of described release, the other end laterally penetrates in described handle (41).
4. the circuit breaker operation mechanism according to any one of claim 1-3, is characterized in that,
Described release, comprise: 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 also can rotates 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 be separated with described snap close (12), by described second connecting rod (42) drive described handle (41) to move to dropout separating brake that open position realizes circuit breaker after described tripping (11) is separated with described snap close (12).
5. the circuit breaker operation mechanism according to any one of claim 1-3, is characterized in that,
Also comprise power saving features, described power saving features can make described coil (22) power-off when turning to closing position by described handle (41).
6. circuit breaker operation mechanism according to claim 5, is characterized in that,
Described power saving features comprises the pressing piece (81) arranged that to link with described stake body (62), the sensitive switch 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 sensitive switch thus make described coil (22) power-off.
7. circuit breaker operation mechanism according to claim 6, is characterized in that,
Described pressing piece (81) is linked by described power transmission shaft (71) and described dynamic iron core (21), described pressing piece (81) forms the long lumbar hole holding described power transmission shaft (71), when described power transmission shaft (71) moves in company with described stake body (62), drive described pressing piece (81) near or away from described sensitive switch.
8. the circuit breaker operation mechanism according to any one of claim 1-3, is characterized in that, described moving contact and described 3rd elastic component (34) lay respectively at the both sides of described power transmission shaft (71).
9. the circuit breaker operation mechanism according to any one of claim 1-3, it is characterized in that, described second connecting rod (42) has two, and two described second connecting rods (42) are coplanar and be positioned at the both sides of described handle (41) and release.
10. a circuit breaker, it is characterized in that, comprise housing (A1), be positioned at the binding post (A3) of housing (A1) both sides, arc-control device, tripping driving device, and the circuit breaker operation mechanism as described in any one of claim 1-9, described tripping driving device can drive release to complete dropout separating brake when circuit abnormality.
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| CN201610146653.XA CN105575737B (en) | 2016-03-15 | 2016-03-15 | A kind of circuit breaker operation mechanism and breaker |
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| CN105575737B (en) | 2017-10-20 |
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Denomination of invention: Circuit breaker operating mechanism and circuit breaker Effective date of registration: 20221118 Granted publication date: 20171020 Pledgee: Taizhou Xianju Sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: JAECELE ELECTRIC Co.,Ltd. Registration number: Y2022330003133 |
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