CN103594298B - Automatically controlled breaker of plastic casing and logic mutual locking-type breaker of plastic casing - Google Patents
Automatically controlled breaker of plastic casing and logic mutual locking-type breaker of plastic casing Download PDFInfo
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- CN103594298B CN103594298B CN201310605866.0A CN201310605866A CN103594298B CN 103594298 B CN103594298 B CN 103594298B CN 201310605866 A CN201310605866 A CN 201310605866A CN 103594298 B CN103594298 B CN 103594298B
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Abstract
The invention discloses a kind of automatically controlled breaker of plastic casing, comprise housing, input, output terminal assembly, handle, moving contact component, fixed contact and lead arc sheet, arc control device, hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and driving shaft controller, handle is provided with the axis hole O1 for installing driving shaft.Driving shaft controller comprises, the driving shaft be connected with handle axis hole and be fixed on the radial driving lever of the driving shaft other end, be arranged on the active driver plate at bevel gear in driving shaft controller and the bevel gear back side, or the active driver plate on fork axle, initiatively driver plate is provided with fan groove, radial driving lever is positioned at fan groove, and the central angle θ of fan groove is less than the angle of handle two pole of rotation extreme position and the difference at handle dead angle.The present invention also discloses a kind of logic mutual locking-type breaker of plastic casing, the present invention make far distance automatic opening and closing power supply even network control become possibility.The present invention is also with more succinct tripping mechanism layout, and the industrial automation for circuit breaker is produced and provided conveniently.
Description
Technical field
The present invention relates to a kind of circuit breaker, particularly relate to a kind of circuit breaker moulding shell structure.
Background technology
Circuit breaker (air switch) is very extensive in whole electric field application.Annual apparent consumption is very huge.Based on the large multinational company that transnational electric group of many families is representative, product is constantly updated and is improved, and leads whole electric utility technology advances.Numerous middle-size and small-size electric corporation just following closely, copies fast.In the last few years, although the constantly progress of the overall performance of breaker of plastic casing and manufacturing process technology, internal structure design was still too disperseed, be unfavorable for the raising of industrial automation production efficiency, and caused consuming a large amount of manpower every year and assemble.
The circuit breaker particularly released in recent years is that magnetic release mechanism and hot release mechanism are separated two parts process substantially, and by heat thread off and magnetic thread off two assemblies independently of each other and be arranged in the housing of circuit breaker face to face, such layout, make in use, when the moment that contact separates, reduce the gravitation of electric charge to arc control device direction.
The action of existing breaker of plastic casing manipulation on/off realizes with artificial drawing handle substantially, and the development of modern society proposes increasing requirement to far distance controlled and automatic control.If by network-control circuit breaker, fundamentally will cut off the electricity supply, make the awaiting electric energy that electrical equipment is safer and saving is a large amount of.
Because conventional circuit breaker from dynamic response, especially can not there will be frequent power failure in some under-developed areas, thus electrical equipment is caused to be subject to surge and to damage.
At present, in circuit breaker manufacturing, on parts are produced, still use conventional method, the composite manufacturing technology got up for developed recently adopts seldom.Make circuit breaker amount of parts too much, for the follow-up Automated assembly that realizes causes difficulty.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of automatically controlled breaker of plastic casing, this circuit breaker is laid a good foundation for realizing network-control in the future.
In order to solve the problems of the technologies described above, the invention discloses a kind of automatically controlled breaker of plastic casing, comprise housing, input terminal assembly, output terminal assembly, handle, moving contact component, fixed contact and lead arc sheet, arc control device, hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component are arranged in the same side of circuit breaker output; Described handle is provided with the axis hole O1 for installing driving shaft.
Further:
This circuit breaker of the present invention also comprises driving shaft controller, described driving shaft controller comprises the driving shaft be fixedly connected with the axis hole O1 of described handle, the radial driving lever be fixed on described driving shaft, the active driver plate be arranged on described driving shaft, described active driver plate can rotate by relative drive shaft, described active driver plate is provided with fan groove, described radial driving lever is positioned at described fan groove, and the central angle θ of described fan groove is less than the difference at the angle of handle two limit positions and the dead angle of handle; Described dead angle refers to handle and U-shaped connecting rod forms toggle, handle close a floodgate do positive hour hands rotate time and U-shaped connecting rod between angle α cross 180 degree of solstics, when handle forwards the extreme position of "on" position to, α angle also reaches the maximum more than 180 degree, and now α angle deducts the difference that 180 degree of straight angles draw and is dead angle.
The bevel gear transmission mechanism driven by minitype speed reducing motor with the active driver plate of fan groove described in the automatically controlled breaker of plastic casing of the present invention or leading screw-rocker transmission mechanism drive; In described active driver plate and described bevel gear transmission mechanism, passive bevel gear is structure as a whole, and namely the structure of described passive bevel gear is the active driver plate with fan groove; In described leading screw-swing rod gearing mechanism, one end of fork is connected with the nut rotation on leading screw, and the other end of fork is the active driver plate with fan groove.
Described moving contact component comprises moving contact rack, actuating arm, dropout lever, moving contact, moving contact spring K1 and contact knocking gear, described moving contact rack is connected on housing by rotating shaft O2, described moving contact and described moving contact rack are structure as a whole, a U-shaped connecting rod is connected with between one end of described actuating arm and described handle, the other end of described actuating arm is connected with described moving contact rack by rotating shaft O3, the fulcrum of described dropout lever is connected with described moving contact rack by rotating shaft O4, contact point P1 is provided with between one end of described dropout lever and described actuating arm, the other end of described dropout lever is provided with nylon spring K2, described nylon spring K2 is connected on moving contact rack, described contact impact structure is a lever, the fulcrum O5 of described lever is connected on the housing, one end of described lever and the sidewall contact of described housing, be provided with contact point P2 between the other end of described lever and described handle, be provided with contact point P3 between described lever and described moving contact rack.
Described hot trip assembley therefor comprises bimetal leaf and heat adjusts screw, described magnetic trip assembley therefor comprises solenoid, sound iron core and magnetic dropout rocking bar, one end of described magnetic dropout rocking bar is slidably connected on the dynamic iron core of solenoid, and the other end of described magnetic dropout rocking bar is connected on housing by rotating shaft O6; Described hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor between be provided with dropout pull bar; One end of described dropout pull bar is connected with described dropout lever by rotating shaft O7, described housing is provided with the guide frame of dropout pull bar, be provided with contact point P4 between described dropout pull bar and described bimetal leaf, between described dropout pull bar and described magnetic dropout rocking bar, be provided with contact point P5; Described interlock trip assembley therefor comprises the adjacent pole interlock release lever be arranged on described dropout pull bar.
Described dropout lever and nylon spring K2 are structure as a whole, and adopt the one-shot forming of double-material injection-molding technique.
A kind of logic mutual locking-type of the present invention breaker of plastic casing, include two groups of circuit breakers of mutual subsistence logic interlocked relationship, interlocking controller is provided with between described two groups of circuit breakers, often organize circuit breaker and comprise housing, input terminal assembly, output terminal assembly, handle, moving contact component, fixed contact and lead arc sheet, arc control device, hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component be arranged in circuit breaker output the same side, described handle is provided with the axis hole O1 for installing driving shaft, logical interlock controller is provided with between described two groups of circuit breakers, the operation of described logical interlock controller is divided into manually and electronic two kinds, the transmission mechanism of described logical interlock controller forms by one group of bevel gear pair, described bevel gear pair is made up of intermediary's bevel gear of two bevel gears face to face and form right angle transmission with it, the rotation direction of described two bevel gears is face to face contrary each other, the active driver plate of band fan groove is all had at described two bevel gear back sides face to face, in fan groove on described two active driver plates, the radial driving lever be fixed on driving shaft is housed respectively, the bevel gear that described two rotation directions are contrary each other drives respective radial driving lever and corresponding driving shaft to do rotation contrary each other, the other end of driving shaft is assemblied in the axis hole O1 of two groups of circuit breaker handles respectively, the central angle θ ' of described fan groove is less than the angle of handle two pole of rotation extreme position and the difference at handle contact angle, the angle between handle position corresponding when the handle extreme position after described handle contact angle and breaker closing and moving contact start to contact conducting with fixed contact.
Compared with prior art, the invention has the beneficial effects as follows: easily Based Intelligent Control is realized to circuit breaker; Can contactor be saved at infrequently connecting and disconnecting of the circuit occasion automatically controlled circuit breaker of the present invention, directly break-make switching be carried out to respective load; The structure of circuit breaker of the present invention is simple and direct, and low cost of manufacture is convenient to automated production, and directly can replace with regular circuit breakers.
Accompanying drawing explanation
Fig. 1 is the present invention's automatically controlled breaker of plastic casing off-position schematic diagram;
Fig. 2 is the fundamental diagram of the off-position of circuit breaker shown in Fig. 1;
Fig. 3 is circuit breaker energize view of the present invention;
Fig. 4 is the fundamental diagram of the state of circuit breaker energize shown in Fig. 3;
Fig. 5 is the fundamental diagram that the present invention's automatically controlled breaker of plastic casing dropout protection starts moment;
Fig. 6-1 is the schematic diagram that the automatically controlled breaker of plastic casing of the present invention adopts bevel gear transmission mechanism driving handle;
Fig. 6-2 is position views of the handle of circuit breaker off-position shown in Fig. 6-1, Fig. 7, Fig. 8, Fig. 9 and Figure 10;
Fig. 6-3 is position views of the handle of breaker closing state shown in Fig. 6-1, Fig. 7, Fig. 8, Fig. 9 and Figure 10;
Fig. 7 is the schematic diagram that the automatically controlled breaker of plastic casing of the present invention adopts leading screw-swing rod gearing mechanism driving handle;
Fig. 8 is the schematic diagram that logic mutual locking-type circuit breaker of the present invention manually realizes;
Fig. 9 is the schematic diagram that logic mutual locking-type circuit breaker of the present invention is realized by bevel gear transmission mechanism;
Figure 10 is the schematic diagram that logic mutual locking-type circuit breaker of the present invention is realized by leading screw-swing rod gearing mechanism;
Figure 11 is the processing scheme schematic diagram that electric control circuit breaker of the present invention occurs when threading off.
In figure:
1-handle, 2-U type connecting rod, 3-actuating arm, 4-moving contact rack, 5-moving contact spring K1, 6-dropout lever, 7-lever, 8-fixed contact and lead arc sheet, 9-input terminal assembly, 10-moving contact, 11-arc-preventing plate, 12-arc control device, 13-magnetic off-line circle, 14-magnetic dropout rocking bar, 15-heat adjusts screw, 16-bimetal leaf, 17-output connection sheet, 18-output terminal assembly, 19-dropout lever, 20-adjacent pole interlock release lever, 21-handle back-moving spring K3, 22-driving shaft, 22 '-radial driving lever, 23-bevel gear pair, 24-ripple is taken turns, 25-reversing switch, 26-torsion adjustment spring, 27-minitype speed reducing motor, 28-leading screw, 29-nut, 30-fork, 31-indicator light, 32-sensitive switch.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Tradition breaker of plastic casing generally all adopts manual actuation handle 1 to carry out opening and cutting off of circuit.The present invention carries out layout again to each functional unit in existing circuit breaker, and wherein too much parts are carried out Function Integration Mechanism, saves space, increases the diameter of handle 1.The axle rotation condition of conventional circuit breaker is changed into the constraint of handle cylindrical, the centre of handle 1 is designed to pore structure, insert driving shaft 22 by outside and be with fixed handle 1 to rotate.But the whole geometry structure of circuit breaker of the present invention is constant, still meet DIN rail road installation code, can use as conventional products and mutually replace.Outside input drive shaft 22 can realize automation make-break operation to breaker of plastic casing or long-range even network control.Particularly work as electrical grid failure, during the wherein 1 phase power-off of frequent power-off or three-phase electricity, often can impact damage to electrical equipment.Circuit breaker of the present invention can cut off circuit breaker easily automatically, thus protection electricity consumption facility.
As shown in figures 1 and 3, the automatically controlled breaker of plastic casing of the present invention, comprise housing, input terminal assembly, output terminal assembly, handle 1, moving contact component, fixed contact and lead arc sheet 8, arc control device 12, hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component be arranged in circuit breaker output the same side; Described handle 1 is provided with the axis hole O1 for installing driving shaft 22.The present invention is by arranging axis hole O1 in the centre of the handle 1 of described circuit breaker, its objective is the driving shaft 22 installed again in addition in this axis hole O1 and can carry out make-break operation to this circuit breaker, the cross sectional shape of this axis hole O1 and with the type of attachment of driving shaft can be any can realize driving this handle 1 to rotate structure and form, and be not limited to the concrete structure of the circuit breaker shown in Fig. 1.
Circuit breaker of the present invention also comprises driving shaft controller, described driving shaft controller comprises the driving shaft 22 be connected with the axis hole O1 on described handle 1, be fixed on the radial driving lever 22 ' of described driving shaft 22 other end, be arranged on the active driver plate at described bevel gear 23 back side, described active driver plate is provided with fan groove, described radial driving lever 22 ' is positioned at described fan groove, the central angle θ of described fan groove is less than the angle of two pole of rotation extreme position of handle 1 and the difference at handle dead angle, described handle dead angle refers to handle 1 and U-shaped connecting rod 2 forms toggle, when handle 1 combined floodgate does the rotation of positive hour hands and between U-shaped connecting rod 2, angle α crosses 180 degree of solstics, when handle 1 forwards the extreme position of "on" position to, α angle also reaches the maximum more than 180 degree, now α angle deducts the difference that 180 degree of straight angles draw and is handle dead angle.
The present invention adopts above-mentioned electric control operation circuit breaker, its meaning be realize automation and at a distance, even can be controlled the break-make of circuit breaker by network.
Breaker closing process of the present invention (Fig. 6-2 is the position of fan groove and radial driving lever 22 ' under off-position), shown in Fig. 6-2, fan groove on the active driver plate of bevel gear 23 back side or fork 30 rotating shaft place does clockwise direction and rotates, promote radial driving lever 22 ' and follow rotation with the driving shaft 22 on it, "on" position is when described mechanism arrives position shown in Fig. 6-3, now circuit turn-on (as shown in Figure 3, Figure 4), radial driving lever 22 ' has turned over θ angle under fan groove closely follows driving, and described mechanism band fixed handle 1 completes the process of combined floodgate.
Circuit breaker of the present invention is operated a switch process (Fig. 6-3 is the position of fan groove and radial driving lever 22 ' under "on" position), shown in Fig. 6-3, fan groove on the active driver plate of now bevel gear 23 back side or fork 30 rotating shaft place does and counterclockwise rotates, now there is the non-contact space of θ angle between radial driving lever 22 ' and fan groove, when coming in contact with the radial driving lever 22 ' be fixed on driving shaft 22 after described fan groove dallies θ angle counterclockwise, at this moment radial driving lever 22 ' and driving shaft 22 are with fixed handle 1 to start to rotate counterclockwise, meanwhile, the other end of described fan groove has also been abdicated θ angle with the radial contactless space of driving lever 22 ', when handle 1 turns over 180 degree of dead points between U-shaped connecting rod 2, handle 1 automatically turns over θ angle counterclockwise fast under the effect of moving contact spring K15, now moving contact 10 and fixed contact 8 achieve fast break and are separated (as Fig. 1, shown in Fig. 2), handle 1 becomes driving link simultaneously, driving shaft 22 and radial driving lever 22 ' fast reverse attached to it is driven to fill the non-contact space of θ angle, described mechanism completes the process of operating a switch.
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 show the embodiment of a kind of automatically controlled breaker of plastic casing internal structure layout of the present invention and the course of work.
Described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component are arranged in the same side of circuit breaker output, i.e. whole hot trip assembley therefors, magnetic trip assembley therefor and adjacent pole interlock releasing structure in output side centralized arrangement, and fixed contact 8 is just as input, ensure safety cut-off, improve breaking capacity.
Described moving contact component comprises moving contact rack 4, actuating arm 3, dropout lever 6, moving contact 10, moving contact spring K15 and lever contact knocking gear 7, described moving contact rack 4 is connected on housing by rotating shaft O2, described moving contact 10 is structure as a whole with described moving contact rack 4, and moving contact 10 and moving contact rack 4 can adopt Compound Machining mode to complete.U-shaped connecting rod 2 is connected with between one end of described actuating arm 3 and described handle 1, namely the hole O8 on one end of U-shaped connecting rod 2 and handle 1 is rotationally connected, a hole O9 on the other end of U-shaped connecting rod 2 and actuating arm 3 is rotationally connected, the other end of described actuating arm 3 is connected with described moving contact rack 4 by rotating shaft O3, the fulcrum of described dropout lever 6 is connected with described moving contact rack 4 by rotating shaft O4, contact point P1 is provided with between one end of described dropout lever 6 and described actuating arm 3, the other end of described dropout lever 6 is provided with nylon spring K2, described nylon spring K2 is connected on moving contact rack 4, described dropout lever 6 is structure as a whole with nylon spring K2, nylon spring K2 realizes simultaneous manufacturing with double-material injection-molding technique and dropout lever 6 in single mold.
Described contact impact structure is a lever 7, the fulcrum O5 of described lever 7 is connected on the housing, one end of described lever 7 and the sidewall contact of described housing, the other end of described lever 7 is provided with and is provided with contact point P2 between described handle 1, the present embodiment is provided with groove in the card of handle 1, a crotch is provided with in this end of lever 7, this crotch is in the groove embedding, thus make to define contact point P2 between this end of lever 7 and described handle 1, in like manner, contact point P3 is also provided with between described lever 7 and described moving contact rack 4; This lever 7 is levers that a high polymer elastic resin material is made, during combined floodgate, moving contact rack 4 and lever 7 collide at P3 point, prevent rotating counterclockwise of moving contact rack 4, due to the elastic reaction of whole mechanism, handle 1 still can continue to do rotation of closing a floodgate counterclockwise, and tractive lever 7 other end P2 point, lever 7 is forced to rotate counterclockwise around fulcrum O5, the moving contact 10 of retard motion and the integrative-structure of moving contact rack 4 are lost suddenly stop and clash into fixed contact 8 with sudden force, guarantee the good contact of contact.
Described hot trip assembley therefor comprises bimetal leaf 16 and heat adjusts screw 15, described magnetic trip assembley therefor comprises magnetic off-line circle 13 and magnetic dropout rocking bar 14, described magnetic off-line circle 13 is built-in with dynamic iron core and static iron core, one end of described magnetic dropout rocking bar 14 is connected on the dynamic iron core of de-magnetic coil 13, and the other end of described magnetic dropout rocking bar 14 is connected on housing by rotating shaft O6; Described hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor between be provided with dropout pull bar 19; namely; the protectiveness of circuit breaker of the present invention is threaded off, such as: the interlock trip assembley therefor unification of the hot trip assembley therefor of overload protection, the magnetic trip assembley therefor of short-circuit protection, adjacent pole switch gearing dropout protection is completed by a dropout pull bar 19.One end of described dropout pull bar 19 is connected with described dropout lever 6 by rotating shaft O7, described housing is provided with the guide frame of dropout pull bar 19, be provided with contact point P4 between described dropout pull bar 19 and described bimetal leaf 16, between described dropout pull bar 19 and described magnetic dropout rocking bar 14, be provided with contact point P5; Described interlock trip assembley therefor comprises the adjacent pole interlock release lever 20 be arranged on described dropout pull bar 19.
The switching process of circuit breaker of the present invention, as shown in Figure 1, during combined floodgate, handle 1 is driven along clockwise direction, promote U-shaped connecting rod 2 and actuating arm 3, by the snap close contact point P1 on dropout lever 6, power is passed to the rotating shaft O4 on moving contact rack 4 and rotating shaft O3, moving contact rack 4 and the founding moving contact 10 on it is forced to rotate counterclockwise around the rotating shaft O2 on housing, when on moving contact rack 4 a bit rotate to lever 7 as contact impact structure corresponding P3 point cantact time, the spinning movement of moving contact rack 4 and moving contact 10 is hampered stopping, due to the elastic reaction of whole mechanism, handle 1 can continue to be driven to turn clockwise, P2 point on tractive lever 7, the fulcrum O5 of lever 7 on housing is forced to be rotated counterclockwise, contact point P3 is caused to disengage, the elasticity that whole linkage mechanism gathers can break down all resistance, moving contact 10 and fixed contact 8 produce and clash into, ensure that dynamic/static contact is in intact contact condition, when particularly improving manual closing operation, due to the pitting of contacts situation that the shake of hand causes.Now handle 1 has turned over 180 degree of dead point angular position with U-shaped connecting rod 2 clockwise, and angle is α (as Suo Shi Fig. 3, Fig. 4), and whole system forms very large pressure to static electric shock 8 and moving contact 10, when α angle is less than 180 degree, its reaction force produces anticlockwise thrust to handle 1, contrary with the feed motion direction of handle 1, when α angle has surmounted the dead-centre position of 180 degree, its reaction force produces clockwise thrust to handle 1, identical with the feed motion direction of handle 1, now handle 1 is locked in the final position of combined floodgate firmly under combined floodgate actuating force and the acting in conjunction of whole contact mechanism reaction force, circuit ON, (angle of clearance that handle 1 is formed in combined floodgate final position and 180 degree of dead-centre positions is defined as handle dead angle by the present invention, that is: handle 1 and U-shaped connecting rod 2 form toggle, when handle 1 combined floodgate does the rotation of positive hour hands and between U-shaped connecting rod 2, angle α crosses 180 degree of solstics, when handle 1 forwards the extreme position of "on" position to, α angle also reaches the maximum more than 180 degree, now α angle deducts the difference that 180 degree of straight angles draw and is handle dead angle).
After the conducting of dynamic/static contact contact (as shown in Figure 3), the input terminal assembly 9 of electric current on the right of circuit breaker enters, be output connection sheet from 17 the output terminal assembly 18(figure on the left side) flow out, when circuital current exceedes restriction numerical value, bimetal leaf 16 occurs to bend left (as shown in Figure 5), at contact point P4 tractive dropout pull bar 19 to left movement, by the rotating shaft O7 on dropout lever 6, drive dropout lever 6 to rotate counterclockwise, cause contact point P1 to thread off.(time normal, contact point P1 is in locking states due to the resilient force of nylon spring K2).Elastic force on moving contact 10 and moving contact spring K15 forces the parts (actuating arm 3 on whole contact mechanism, moving contact rack 4, dropout lever 6 and moving contact 10) rotate clockwise, simultaneously, dropout pull bar 19 and adjacent pole interlock release lever 20 are to left movement, and the rotating shaft O3 on the relative moving contact rack 4 of actuating arm 3 rotates counterclockwise.The propulsive thrust that handle 1 closes a floodgate disappears, and under the drive of handle back-moving spring K321, U-shaped connecting rod 2, actuating arm 3 and lever 7 is put back into initial position as shown in Figure 1, waits for feed motion (this process is called heat dropout protection) next time.
When there is short circuit in circuit; the electric current flowed through on magnetic tripping coil 13 can instantaneously increase suddenly; produce very strong magnetic force; inner dynamic iron core is attracted to clash into left; drive magnetic dropout rocking bar 14 clockwise oscillation; clash into contact point P5, thus pull dropout pull bar 19 to move to left under the guiding of the guide frame of its both sides, the phenomenon occurred below is identical with above-mentioned hot dropout protection act.
For the circuit breaker of multipole parallel connection; when this pole circuit breaker normally works in current limit; break down in adjacent phase pole; this circuit breaker tripping pull bar 19 can be pulled to left movement by the adjacent pole interlock release lever 20 of circuit breakers, the effect of generation is identical with above-mentioned (this process is called interlock dropout protection).
Fig. 6-1 shows the application example of the automatically controlled breaker of plastic casing of the present invention: the active driver plate in this example A direction view and fan groove attached to it are carry on the back relative integrative-structure with bevel gear 23, initiatively driver plate is driven by bevel gear transmission mechanism by the output shaft of micro speed reducing motor 27, initiatively radial driving lever 22 ' stirred by driver plate, thus the switch that the rotation of drive driving shaft 22 realizes circuit breaker is automatically controlled, the drive sprocket axle of bevel gear transmission mechanism is provided with ripple wheel 24 and compression torque spring 26, the back side of described driving bevel gear is provided with the corrugated surface that the corrugated surface of taking turns 24 with described ripple coincide, at the extreme position of handle 1, because torsion increases suddenly, ripple wheel 24 compression torsion adjustment spring 26 backs down reversing switch 25, micro speed reducing motor 27 automatic reverse, realize the combined floodgate of circuit breaker or the free operant of disconnection.Fig. 6-2 shows the position of this example circuit breaker off-position handle, and Fig. 6-3 shows the position of this example breaker closing state handle.
Fig. 7 shows the example of the automatically controlled on/off operation of another kind of the automatically controlled breaker of plastic casing of the present invention: the output of micro speed reducing motor is a leading screw 28, leading screw 28 is equipped with a nut 29, nut 29 is connected with a fork 30, initiatively driver plate and fan groove attached to it are fixed on rotating shaft place of fork 30, micro speed reducing motor drives leading screw 28, leading screw 28 drives the nut 29 on it to move left and right, nut 29 drives fork 30 to swing, fan groove initiatively on driver plate stirs radial driving lever 22 ', thus realizes automatically controlled combined floodgate or the disconnection of circuit breaker.
A kind of logic mutual locking-type of the present invention breaker of plastic casing, include two groups of circuit breakers of mutual subsistence logic interlocked relationship, certainly, often organizing circuit breaker can be one pole or multipole circuit breaker, interlocking controller is provided with between described two groups of circuit breakers, often organize circuit breaker and comprise housing, input terminal assembly, output terminal assembly, handle 1, moving contact component, fixed contact 8, arc control device 12, hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component are arranged in the same side of circuit breaker output, described handle 1 is provided with the axis hole O1 for installing driving shaft 22, described interlocking controller comprises two two driving shafts 22 be assemblied in respectively in the axis hole O1 of two groups of circuit breakers, described driving shaft 22 is fixed with radial driving lever 22 ', described radial driving lever 22 ' lays respectively in each fan groove, described fan groove is fixedly connected on active driver plate, described active driver plate and bevel gear 23 are structure as a whole, the central angle θ ' of described fan groove is less than the angle of handle 1 two pole of rotation extreme position and the difference at handle contact angle, handle extreme position after described handle contact angle and breaker closing and dynamic, angle between handle position corresponding when fixed contact starts to contact conducting.Described active driver plate is driven by bevel gear transmission mechanism or leading screw-rocker transmission mechanism, and described bevel gear transmission mechanism or leading screw-rocker transmission mechanism are driven by minitype speed reducing motor 27, and wherein bevel gear transmission mechanism can also be manually.
During dual power supply, require that two electric power systems are definitely isolated and independent, otherwise breakneck accident will be brought.No matter manually or Electronic control switch electric power system, The present invention gives guarantee in logic.When carrying out manual operation, no matter you first operate left or right wherein any circuit breaker, due to the auto-reverse structure of gear, all can realize the reverse operating to another one system.This logic automatic reverse mechanism also provides guarantee for power automation switches electric power system.
Fig. 8 shows the application example of the logic mutual locking-type breaker of plastic casing of manual actuation of the present invention: in Fig. 8, the empty wire frame representation in left and right is two adjacent circuit breakers, driving shaft 22 is respectively fitted with in the axis hole O1 of two circuit breakers, driving shaft 22 and radial driving lever 22 ' are integrative-structures, driving shaft is set with the back of the body relative active driver plate of the back of the body and bevel gear, bevel gear can rotate by relative drive shaft, two are initiatively provided with fan groove (i.e. the present invention do not get rid of active driver plate can be designed to bevel gear be integrative-structure) in driver plates, the radial driving lever 22 ' of every circuit breaker is contained in (as shown in Fig. 6-2 and Fig. 6-3) in fan groove just, one is also provided with as the bevel gear of intermediary wheel between two bevel gears 23 face to face, when carrying out circuit breaker with the handle 1 of any circuit breaker in hand drive left or right limit and opening or closing, another (right or left) circuit breaker automatically performs counteragent, electric power system can be exchanged for dual power supply user security like this and safety guarantee is provided.
Fig. 9 shows an example of the present invention's automatically controlled logic mutual locking-type circuit breaker: namely drive two active driver plates to do rightabout rotation by the output shaft of micro speed reducing motor 27 by bevel gear transmission mechanism, two radial driving levers 22 ' stirred respectively by two active driver plates, two driving shafts 22 are driven to rotate backward with handle 1 is relative accordingly separately again, realize two groups of circuit breakers wherein one be off, an other conducting, thus achieve logical interlock.
Figure 10 shows another example of the present invention's automatically controlled logic mutual locking-type circuit breaker: the output of micro speed reducing motor 27 is a leading screw 28, drive the nut 29 on it, nut 29 drives fork 30, fork 30 drives the active driver plate on a wherein circuit breaker, meanwhile, the active driver plate reverse rotation on an other circuit breaker is driven by intermediary wheel, each active driver plate stirs respective radial driving lever 22 ' and driving shaft 22, drive the handle 1 in respective circuit breaker again, thus realize two groups of circuit breakers wherein one be off (as in fig. 6-2), an other conducting (as shown in Fig. 6-3), thus achieve logical interlock.
When circuit breaker of the present invention works in electric drive mode, now they are unlike common circuit breaker, after dropout of breaking down, handle 1 can drop under the driving of handle back-moving spring K321, makes us visually can find this fault trip phenomenon fast.As shown in figure 11, the present invention installs sensitive switch 32 by the correspondence position at interlock release lever 20 place, adjacent pole of circuit breakers side in external controller, when threading off when breaking down, adjacent pole interlock release lever 20 connects corresponding sensitive switch 32, corresponding indicator light 31 is opened, or green reddens look, show this circuit breaker and occur dropout fault, also can carry out long-distance alarm simultaneously.
Although invention has been described for structure chart above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (7)
1. an automatically controlled breaker of plastic casing, comprise housing, input terminal assembly (9), output terminal assembly (18), handle (1), moving contact component, fixed contact and lead arc sheet (8), arc control device (12), hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, it is characterized in that
Described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component are arranged in the same side of circuit breaker output; Described handle (1) is provided with the axis hole (O1) for installing driving shaft;
This circuit breaker also comprises driving shaft controller, described driving shaft controller comprises the driving shaft (22) be fixedly connected with the axis hole of described handle (1) (O1), be fixed on the radial driving lever (22 ') on described driving shaft (22), be arranged on the active driver plate on described driving shaft, described active driver plate can rotate by relative drive shaft (22), described active driver plate is provided with fan groove, described radial driving lever (22 ') is positioned at described fan groove, the central angle θ of described fan groove is less than the difference at the angle of handle (1) two limit positions and the dead angle of handle, described dead angle refers to handle (1) and U-shaped connecting rod (2) forms toggle, when handle (1) closes a floodgate and does the rotation of positive hour hands, between handle (1) below and U-shaped connecting rod (2), angle α crosses 180 degree of solstics, when handle (1) forwards the extreme position of "on" position to, α angle also reaches the maximum more than 180 degree, and now α angle deducts the difference that 180 degree of straight angles draw and is dead angle.
2. automatically controlled breaker of plastic casing according to claim 1, is characterized in that, the bevel gear transmission mechanism that the described active driver plate of band fan groove is driven by minitype speed reducing motor (27) or leading screw-swing rod gearing mechanism drive; In described active driver plate and described bevel gear transmission mechanism, passive bevel gear is structure as a whole, and namely the structure of described passive bevel gear (23) is the active driver plate with fan groove; In described leading screw-swing rod gearing mechanism, the nut (29) on one end of fork (30) and leading screw (28) is rotationally connected, and the other end of fork (30) is the active driver plate with fan groove.
3. automatically controlled breaker of plastic casing according to claim 1 or 2, it is characterized in that, described moving contact component comprises moving contact rack (4), actuating arm (3), dropout lever (6), moving contact (10), moving contact spring K1 (5) and contact knocking gear, described moving contact rack (4) is connected on housing by rotating shaft O2, described moving contact (10) and described moving contact rack (4) are structure as a whole, a U-shaped connecting rod (2) is connected with between one end of described actuating arm (3) and described handle (1), the other end of described actuating arm (3) is connected with described moving contact rack (4) by rotating shaft O3, the fulcrum of described dropout lever (6) is connected with described moving contact rack (4) by rotating shaft O4, contact point P1 is provided with between one end of described dropout lever (6) and described actuating arm (3), the other end of described dropout lever (6) is provided with nylon spring K2, described nylon spring K2 is connected on moving contact rack (4), described contact knocking gear is a lever (7), the fulcrum O5 of described lever (7) is connected on the housing, one end of described lever (7) and the sidewall contact of described housing, be provided with contact point P2 between the other end of described lever (7) and described handle (1), between described lever (7) and described moving contact rack (4), be provided with contact point P3.
4. automatically controlled breaker of plastic casing according to claim 3, it is characterized in that, described hot trip assembley therefor comprises bimetal leaf (16) and heat adjusts screw (15), described magnetic trip assembley therefor comprises magnetic off-line circle (13) and the built-in sound iron core of coil and magnetic dropout rocking bar (14), one end of described magnetic dropout rocking bar (14) is connected on the dynamic iron core of de-magnetic coil (13), and the other end of described magnetic dropout rocking bar (14) is connected on housing by rotating shaft O6;
Described hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor between be provided with dropout pull bar (19); One end of described dropout pull bar (19) is connected with described dropout lever (6) by rotating shaft O7, described housing is provided with the guide frame of dropout pull bar (19), be provided with contact point P4 between described dropout pull bar (19) and described bimetal leaf (16), between described dropout pull bar (19) and described magnetic dropout rocking bar (14), be provided with contact point P5; Described interlock trip assembley therefor comprises adjacent pole interlock release lever (20) be arranged on described dropout pull bar (19).
5. automatically controlled breaker of plastic casing according to claim 3, is characterized in that, described dropout lever (6) and nylon spring K2 are structure as a whole, and adopt the one-shot forming of double-material injection-molding technique.
6. a logic mutual locking-type breaker of plastic casing, include two groups of circuit breakers of mutual subsistence logic interlocked relationship, two groups of breaker structures are the same, often organize circuit breaker to comprise housing, input terminal assembly (9), output terminal assembly (18), handle (1), moving contact component, fixed contact and lead arc sheet (8), arc control device (12), hot trip assembley therefor, magnetic trip assembley therefor and interlock trip assembley therefor, it is characterized in that
Described hot trip assembley therefor, magnetic trip assembley therefor, interlock trip assembley therefor and moving contact component are arranged in the same side of circuit breaker output; Described handle (1) is provided with the axis hole (O1) for installing driving shaft (22);
Logical interlock controller is provided with between described two groups of circuit breakers, the operation of the logical interlock controller of described two groups of circuit breakers is divided into manually and electronic two kinds, the transmission mechanism of described logical interlock controller is formed by one group of bevel gear pair (23), described bevel gear pair (23) is made up of intermediary's bevel gear of two bevel gears face to face and form right angle transmission with it, the rotation direction of described two bevel gears is face to face contrary each other, the active driver plate of band fan groove is all had at described two bevel gear back sides face to face, in fan groove on two active driver plates, the radial driving lever (22 ') of being fixed on driving shaft (22) is housed respectively, the other end of the driving shaft (22) that two rotation directions are contrary is assemblied in the axis hole (O1) of two groups of circuit breaker handles (1) respectively, the central angle θ ' of described fan groove to be less than between handle (1) two pole of rotation extreme position and to be less than the angle of 180 ° and the difference at handle contact angle, the angle between another extreme position of handle corresponding when the handle extreme position after described handle contact angle and breaker closing and moving contact (10) start to contact conducting with fixed contact.
7. logic mutual locking-type breaker of plastic casing according to claim 6, is characterized in that, often organizes circuit breaker and is made up of one pole or multipole circuit breaker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310605866.0A CN103594298B (en) | 2013-11-22 | 2013-11-22 | Automatically controlled breaker of plastic casing and logic mutual locking-type breaker of plastic casing |
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| CN201310605866.0A CN103594298B (en) | 2013-11-22 | 2013-11-22 | Automatically controlled breaker of plastic casing and logic mutual locking-type breaker of plastic casing |
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| CN103594298B true CN103594298B (en) | 2016-04-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104282510A (en) * | 2014-10-16 | 2015-01-14 | 上海安奕极企业发展有限公司 | Two-pole compact miniature circuit breaker |
| CN106898529B (en) * | 2015-12-21 | 2018-08-31 | 天津加美特电气设备有限公司 | A kind of contact Direct Action Type breaker of plastic casing |
| CN107342193A (en) * | 2016-01-19 | 2017-11-10 | 天津加美特电气设备有限公司 | Compatible contactor function and the intelligent circuit breaker for having both manual control and remote control mode simultaneously |
| CN108198737A (en) * | 2018-03-03 | 2018-06-22 | 林蔓琦 | A kind of prepayment breaker reclosing device and implementation method |
| CN109509687B (en) * | 2018-11-06 | 2024-01-19 | 安士缔(中国)电气设备有限公司 | Be applied to short circuit device of circuit breaker |
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Effective date of registration: 20221223 Address after: 301600 East End, No.6 Road, Jinghai District, Tianjin Patentee after: Tianjin jiameite Electric Co.,Ltd. Address before: 300402 Tianjin Kelin Mould Technology Co., Ltd., Xiaodian Industrial Zone, Beichen District, Tianjin Patentee before: Wang Kecheng |