Automatic reclosing controller
Technical field
The present invention relates to a kind of automatic reclosing controller, belong to Low Voltage Electrical Apparatus.
Background technology
Auto recloser is a kind of effective anti-accident measures that is widely used in overhead wire transmission of electricity and the overhead wire supply line.Overhead transmission line is because the line fault overwhelming majority that such as thunderbolt or windburn etc. of extraneous factor causes is " instantaneity "; namely in most cases; after overhead transmission line is disconnected by circuit breaker; electric arc is with automatic distinguishing; the insulation of fault point can recover automatically; auto recloser makes circuit breaker again close behind short time interval; thereby improve the safety and reliability of power supply; reduced loss of outage; increase the conveying capacitance of circuit, and correct because the power-off fault that circuit breaker or protective relaying device mistrip cause.
For example, Chinese patent literature CN201359979Y discloses a kind of residual current circuit breaker with automatic reclosing function, wherein, motor-operating mechanism is fixed on the envelope of residual current circuit breaker, controller is fixed on the motor-operating mechanism, at motor-operating mechanism slide block and motor are installed, slide block is stuck on the handle on the residual current circuit breaker, operate back and forth the handle on the residual current circuit breaker, to reach residual current circuit breaker separating brake, combined floodgate and to detain operating function again, motor is by the operating grip on the gear drive connection residual current circuit breaker.But the embodiment of this patent documentation and Figure of description part specifically do not disclose the structure of motor-operating mechanism.
For another example, Chinese patent literature CN202013856U discloses a kind of motor-operating mechanism for circuit breaker, this motor-operating mechanism comprises base plate, support is housed on the base plate, cover plate is arranged on the support, motor is housed on the cover plate, this motor is ac synchronous motor, an end of the rotor of motor and the engagement of one-level gear, and the one-level gear is by guide plate and secondary gear engagement, secondary gear is connected with lobe plate by location-plate, bearing is housed on the lobe plate, and the rotation by secondary gear drives the bearing on the lobe plate, thereby promotes slide block, the inner bayonet of slider bottom cooperates circuit breaker, thereby reaches the purpose that makes circuit-breaker switching on-off.Can find out from embodiment and the Figure of description of this patent documentation, in this motor-operating mechanism, short transverse along motor-operating mechanism, from top blind flange to motor, one-level gear, secondary gear, lobe plate, bearing and slide block are installed the base plate of bottom successively, the whole height of this motor-operating mechanism is the height sum of above-mentioned every part substantially, thereby causes the height dimension of this motor-operating mechanism larger.
If the disclosed motor-operating mechanism of Chinese patent literature CN202013856U is installed on the disclosed residual current circuit breaker with automatic reclosing function of Chinese patent literature CN201359979Y, because this motor-operating mechanism overall height dimension is larger, therefore, must cause whole circuit breaker height dimension excessive, can not be installed in the drawer type control cubicle.In addition, because above-mentioned motor-operating mechanism all adopts single motor, this list motor drives the handle action of circuit breaker by gear reduction, eccentric wheel and slide block, in real work, the applicant finds that this motor-operating mechanism is easier to cause power output not steady, can not effectively guarantee the normal divide-shut brake of circuit breaker.
Summary of the invention
Problem to be solved by this invention is the technical problem that existing auto recloser overall dimensions is excessive, range of application is less, thus provide that a kind of overall dimensions is little, topology layout rationally, the automatic reclosing controller that can install with the intelligent breaker modular combination.
To achieve these goals, the invention provides a kind of automatic reclosing controller, comprise base, synchronous machine, gear reduction and the actuator that is used for driving circuit-breaker switching on-off, described synchronous machine and described actuator are arranged on the described base, are provided with cover plate in described synchronous machine and the described actuator; Described gear reduction is arranged on the described cover plate, and the output shaft of described synchronous machine passes the input gear engagement of gear hole on the described cover plate and described gear reduction, and the output gear of described gear reduction drives described actuator.
Rotate on the described cover plate and be provided with rocking arm and control first sensitive switch of powering to described synchronous machine, one end of described rocking arm can cooperate with the button of described the first sensitive switch, and the other end is connected with stage clip on the described cover plate and the salient point that extends through on the cam of hole and described actuator on the described cover plate contacts.
Described gear reduction comprises the supporting bracket that is arranged on described cover plate top and is fixedly connected with the two side of described base; Described input gear comprises the first gear and the second gear that coaxial rotation arranges, the output shaft engagement of described the first gear and described synchronous machine, and described the second gear passes described supporting bracket and the described output gear engagement that is arranged on the described supporting bracket.
Described output gear comprises intermeshing driving gear and driven gear, described driving gear and the engagement of described the second gear, and described driven gear drives the described cam of described actuator with rotating shaft.
The quantity of described synchronous machine is that two or three and space are arranged; The quantity of described input gear is identical with the quantity of described synchronous machine, wherein, the engagement of the output shaft of described the first gear and each self-corresponding described synchronous machine, described the second gear passes gear hole and the engagement of described driving gear separately.
Described automatic reclosing controller comprises that also rotation is arranged on the hand-operated rotating shaft on the described base, described hand-operated rotating shaft is fixedly connected with connecting rod towards the end of described base, and it is mobile that the slide block interlock of described connecting rod and described actuator also can promote the guide rail of described slide block on described base.
Described gear reduction top is provided with overlay, and described overlay is provided with the second sensitive switch that is electrically connected with described synchronous machine and the manual automatic transfer equipment that can contact with described the second sensitive switch near the position of described hand-operated rotating shaft.
Described automatic reclosing controller also comprises and runs through described cover plate with described base and can stretch into the inner release lever that contacts with opening contact of circuit breaker, the part that described release lever is positioned at described cover plate top is provided with trip push button, part between described cover plate and described base is disposed with check ring and spring from top to bottom, and described check ring is fixedly installed on the described release lever and with described spring and cooperates.
The part that described release lever is positioned at described cover plate below has limiting section spacing to described release lever when described spring reset.
Also comprise housing and be used for controlling the control module of described automatic reclosing controller, wherein, have on the described housing that the starting switch of electrical connection, a plurality of parameter are regulated button, LCDs, a plurality of status indicator lamp, the manual handle that is used in conjunction with described manual deciliter rotating shaft and for incoming traffic signal or the input terminal that is electrically connected with the signal output terminal of residual current current protection module, described input terminal can be electrically connected with the zero-sequence transformer of circuit breaker inside; Described control module is positioned at described enclosure interior and is electrically connected with described synchronous machine.
Technique scheme of the present invention compared with prior art has the following advantages:
(1) in the automatic reclosing controller of the present invention, its synchronous machine and the actuator that be used for to drive circuit-breaker switching on-off are arranged on base, be provided with cover plate in synchronous machine and the actuator, be provided with gear reduction on the cover plate, therefore, by making the reasonable Arrangement of motor and actuator, and by corresponding gear reduction, the overall height dimension of this automatic reclosing controller is little, topology layout is reasonable, after being installed on the circuit breaker, the height dimension of the height dimension that makes whole circuit breaker being compared existing circuit breaker reduces 50mm, and can be widely used in multiple installation occasion.
(2) in the automatic reclosing controller of the present invention, the quantity of its synchronous machine is that two or three and space arrange, and therefore, can provide stably power output, guarantees the timely divide-shut brake of circuit breaker.
Description of drawings
Be expressly understood for the content that makes invention is easier, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 represents the perspective view of automatic reclosing controller of the present invention;
Another perspective view of the automatic reclosing controller of Fig. 2 presentation graphs 1;
Fig. 3 represents the structural representation of the manual automatic transfer equipment of automatic reclosing controller of the present invention;
Fig. 4 represents the structural representation of the release lever of automatic reclosing controller of the present invention;
Fig. 5 represents the perspective view of the decomposition of automatic reclosing controller of the present invention.
Description of reference numerals
The 1-base, 2-synchronous machine, 3-cover plate, 4-input gear, 5-output gear, the 6-rocking arm, 7-the first sensitive switch, 8-stage clip, 9-cam, 10-supporting bracket, the 11-hand-operated rotating shaft, 12-connecting rod, 13-slide block, 14-guide rail, 15-overlay, the 16-sliding bearing, 17-the second sensitive switch, 18-release lever, 19-trip push button, the 20-check ring, 21-spring, 22-limiting section, 23-housing, the 24-starting switch, 25-manual handle, 26-input terminal, the manual automatic transfer equipment of 27-; 4a-the first gear, 4b-the second gear, 5a-driving gear, 5b-driven gear.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
As illustrated in fig. 1 and 2, the automatic reclosing controller of the embodiment of the invention comprises base 1, synchronous machine 2, gear reduction and the actuator that is used for driving circuit-breaker switching on-off, wherein,
Described synchronous machine 2 and described actuator are arranged on the described base 1, are provided with cover plate 3 in described synchronous machine 2 and the described actuator, and the output shaft of described synchronous machine 2 passes described cover plate 3;
Described gear reduction is arranged on the described cover plate 3, the output shaft of described synchronous machine 2 passes input gear 4 engagements of gear hole and the described gear reduction of the correspondence on the described cover plate 3, and the output gear 5 of described gear reduction drives described actuator.
Described actuator can adopt existing slide block and cam mechanism, for example, described actuator can comprise slide block 13 and cam 9, described slide block 13 is slidingly arranged on the guide rail 14 on the described base 1, described cam 9 is positioned at the below of described cover plate 3 and has described output gear 5 to drive with rotating shaft, described cam 9 is provided with the sliding bearing 16 of position changeable on the side of described base 1, sliding bearing 16 is associated to drive slide block 13 with slide block 13 and moves at described guide rail 14.
Described base 1 position corresponding with circuit breaker handle offers slotted eye, and described circuit breaker handle passes described slotted eye and links with described slide block 13.When this automatic reclosing controller was installed on the circuit breaker, slide block 13 can cooperate with the handle of circuit breaker, and slide block 13 movement on guide rail 14 can realize the breaking-closing operating of circuit breaker.
Be provided with the buffering contact zones between slide block 13 and the circuit breaker handle, therefore, this automatic reclosing controller can make the circuit-breaker switching on-off action more stable, more reliable
In addition, for described synchronous machine after guaranteeing the circuit-breaker switching on-off operation can stop operating, preferably, as shown in Figure 1, rotate on the described cover plate 3 and be provided with rocking arm 6 and control first sensitive switch 7 of powering to described synchronous machine 2, one end of described rocking arm 6 can cooperate with the button of described the first sensitive switch 7, and the other end is connected with stage clip 8 on the described cover plate 5 and the salient point that extends through on the cam 9 of hole and described actuator on the described cover plate 3 contacts.
As shown in Figure 1, described gear reduction also can comprise the supporting bracket 10 that is arranged on described cover plate 3 tops and is fixedly connected with the two side of described base 1; Described input gear 4 comprises the first gear 4a and the second gear 4b that coaxial rotation arranges, described the first gear 4a rotates the output shaft engagement that is arranged on the described cover plate 3 with described synchronous machine 2, and described the second gear 4b passes hole corresponding on the described supporting bracket 10 and described output gear 5 engagements that are arranged on the described supporting bracket 10.
Further, described output gear 5 comprises and is arranged on the described supporting bracket 10 and intermeshing driving gear 5a and driven gear 5b by each axis of rotation, described driving gear 5a and described the second gear 4b engagement, described driven gear 5b and the described cam 9 that is positioned at described cover plate 3 belows rotate to drive described cam 9 simultaneously with the rotating shaft setting.
Among this embodiment, for stably power output is provided, guarantee in time divide-shut brake of circuit breaker, preferably, shown in Fig. 1 and 5, the quantity of described synchronous machine 2 is that two or three and space are arranged, correspondingly, the quantity of described input gear 4 is identical with the quantity of described synchronous machine 2, wherein, the output shaft engagement of each described the first gear 4a and each self-corresponding described synchronous machine 2, each described second gear 4b passes gear hole and described driving gear 5a engagement separately.
The automatically running of control of this automatic reclosing controller below is described, when circuit breaker is in gate-dividing state, controller panel can show the separating brake printed words, and status indicator lamp shows red, close a floodgate such as need, press parameter combined floodgate button in the button is set, the control chip of control module as described below is namely exported switching signal, described synchronous machine 2 entrys into service, the output shaft gear of synchronous machine 2 will mesh with the first gear 4a, driving simultaneously driving gear 5a rotates, driving gear 5a drives driven gear 5b and rotates, because cam 9 and driven gear 5b are with the rotating shaft setting, therefore, driven gear 5b will be with moving cam 9 to rotate simultaneously, the sliding bearing 16 of cam 9 bottom surfaces will be with movable slider 13 to do rectilinear motion at guide rail 14, and slide block 13 will drive the handle action of circuit breaker, and circuit breaker is detained again, at this moment, cam 9 is rotated further, and makes sliding bearing 16 continue band movable slider 13 and rotates, and drives breaker closing, simultaneously, auxiliary the lifting one's head of the inner installation of circuit breaker also moves simultaneously, and the signal that the output circuit breaker has closed a floodgate is after control chip is received signal, can show the combined floodgate printed words at control panel, and signal lamp becomes green from redness; At this moment, sliding bearing 16 is rotated further under the drive of cam 9, until make the bossing on the cam 9 run into rocking arm 6, rocking arm 6 unclamps the button of the first sensitive switch 7 under the effect of cam 9, cuts off the power supply of synchronous machine 2, and the automatic closing operation is finished.
During the automatic brake separating operation, motion mode and the closing operation of mechanism are similar, and behind the breaker open operation, the signal of separating brake is finished in inner auxiliary contact output of installing, after control chip is received signal, show the separating brake printed words at control panel, status indicator lamp becomes redness by green, and cam 9 drives sliding bearing 16 and rotates until the bossing on the cam 9 leaves rocking arm 6; rocking arm 6 is under the effect of stage clip 8; press the button of the first sensitive switch 7, cuts off the power supply of synchronous machine 2, and sub-switching operation is finished.
In addition, among this embodiment, this automatic reclosing controller can comprise that also rotation is arranged on the hand-operated rotating shaft 11 on the described base 1, described hand-operated rotating shaft 11 is fixedly connected with connecting rod 12 towards the end of described base 1, described connecting rod 12 has bearing pin with the end that the slide block 13 of described actuator is connected, and the bottom of slide block 13 has sliding tray, and described bearing pin can slide in described sliding tray, therefore, it is mobile that described connecting rod 12 can promote the guide rail 14 of described slide block 13 on described base 1.Like this, it is mobile at guide rail 14 that rotation manual rotating shaft 11 can drive described slide block 13, realizes the manual breaking-closing operating of circuit breaker.
In addition, shown in Fig. 3 and 5, described gear reduction top is provided with overlay 15, this overlay 15 can be fixedly connected on the two side of bearing 1, described overlay 15 is provided with the second sensitive switch 17 that is electrically connected with described synchronous machine 2 and the manual automatic transfer equipment 27 that can contact with described the second sensitive switch 17 near the position of described hand-operated rotating shaft 11, by the described manual automatic transfer equipment 27 that slides, can realize the switching of manual operation and automatic operation, for example, the described manual automatic transfer equipment 27 that slides makes described hand-operated rotating shaft 11 expose and unclamp the button of described the second sensitive switch 17, cut off the divide-shut brake power supply of described synchronous machine 2, at this moment, circuit breaker only can carry out divide-shut brake by manual operation; On the contrary, the described manual automatic transfer equipment 27 that slides to be covering described hand-operated rotating shaft 11 and to press the button of described the second sensitive switch 17, the divide-shut brake power supply of the described synchronous machine 2 that closes, breaking-closing operating that can auto-controlled circuit breaker.
Shown in Fig. 2 and 4, described automatic reclosing controller also comprises and runs through described cover plate 3 with described base 1 and can stretch into the inner release lever 18 that contacts with opening contact of circuit breaker, the part that described release lever 18 is positioned at described cover plate 3 tops is provided with trip push button 19, part between described cover plate 3 and described base 1 is disposed with check ring 20 and spring 21 from top to bottom, and described check ring 20 is fixedly installed on the described release lever 18 and with described spring 21 and cooperates.By this release lever 18, no matter circuit breaker is in closing position or open position, manually press the trip push button 19 on the release lever 18, all can say circuit breaker tripping.
Because after pressing trip push button 19, described spring 21 is with compressed, in order after unclamping trip push button 19, to carry out spacing to release lever 18, preferably, the part that described release lever 18 is positioned at described cover plate 3 belows has when described spring 21 resets the limiting section 22 spacing to described release lever 18, and this limiting section 22 can block cover plate 3 to carry out spacing to release lever 18.
In addition; as shown in Figure 5; described automatic reclosing controller also comprises housing 23 and is used for controlling the control module of described automatic reclosing controller; wherein; the starting switch 24 that has electrical connection on the described housing 23; a plurality of parameters be used to required Protection parameters is set are regulated button; be used for showing the LCDs of each performance parameter; a plurality of status indicator lamps for showing running status; the manual handle 25 that is used in conjunction with described manual deciliter rotating shaft 11 and the input terminal 26 that is used for the incoming traffic signal or is electrically connected with the signal output terminal of residual current current protection module; described input terminal 26 can be electrically connected with the zero-sequence transformer of circuit breaker inside; therefore; described input terminal 26 can be connected with terminal signals of telecommunication such as computers; can realize operating state and the parameter of online query circuit breaker; simultaneously; the chip of described control module has memory storage function; the user can inquire about nearest about 10 times historical failure parameter; in addition; if when being used for needing to increase the band residual current protecting; only need are connected in described input terminal 26 with the signal output part of the residual current protecting module of circuit breaker inside, can make this automatic reclosing controller realization with the function of residual current protecting.
Described control module is positioned at described housing 23 inside and is electrically connected with described synchronous machine 2, to control the operation of described synchronous machine 2.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction 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 need not also can't give all execution modes exhaustive.And the apparent variation of being extended out thus or change still are among the protection range of the invention.