CN101425422A - Electric power opening and closing device and gas insulation circuit-breaker - Google Patents
Electric power opening and closing device and gas insulation circuit-breaker Download PDFInfo
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- CN101425422A CN101425422A CNA2008102151369A CN200810215136A CN101425422A CN 101425422 A CN101425422 A CN 101425422A CN A2008102151369 A CNA2008102151369 A CN A2008102151369A CN 200810215136 A CN200810215136 A CN 200810215136A CN 101425422 A CN101425422 A CN 101425422A
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Abstract
This invention refers to an electric power switching device (100) having an operation part (12) and a power transmission mechanism (4, 5, 8, 9, 11). The operation part (12) generates driving force to drive movable contact (6) to a direction of putting or cutting. The movable contact (6) and a fixing contact (7) are configured oppositely in a way capable of contacting or separating. The power transmission mechanism transmits driving force to the movable contact (6) of the operation part. A secondary driving force generating mechanism is mounted at rotation lever (4) of the power transmission mechanism and is composed of a twisted bar (1). The twisted bar accumulates force when the movable contact is put or cut and releases force when moving in the other state. Therefore, the driving ability of the driving source is not increased, and the length of the power transmission component has no relationship with the high speed motion of the electric power switching device, such as the shutter or the breaker and so on.
Description
Technical field
The present invention relates to a kind of electric power opening and closing device, for example be applicable to shutter, disconnection portion and the gas insulation breaker etc. of electric substation, the contour voltage specification of switching station.
Background technology
The function of being located at the circuit breaker of electric substation or switching station is to guarantee "on" position usually, turn-off current when causing abnormal current to take place because of thundering etc. because of electric power system.Generally, the electric power opening and closing device relative with fixed contact and can contact the configuration moving contact with leaving, by operating portion moving contact driven on the direction of leaving immediately, carries out the input of circuit breaker and be pulled away from.
The operating portion of such electric power opening and closing device constitutes as drive source with electromagnet, elastomeric element, oil pressure source etc.As the example of elastomeric element, such as patent documentation 1 the record, drop into purposes and be pulled away from and use disc spring under the purposes respectively.These disc springs are accumulated power by other power sources before input or before being pulled away from, response drops into instruction or is pulled away from instruction and discharges the elastic force of accumulating, thereby with the high-speed driving moving contact.
At this,, the actuating force of disc spring is increased, but existence is excessive as the shared volume of the spring of elastomeric element, the problem that operating portion maximizes for input that makes circuit breaker or the on-off action high speed that is pulled away from.In addition, for example about 1/3 of the quality of disc spring self form inertia load, it all acts on the action axis of spring, and institute is so that the energy increase of spring own activity becomes the obstacle to high speed.
In order to solve such problem, use torsion bar as elastomeric element in the patent documentation 2.Like this, one end of two torsion bars is fixed on the symmetric position of rotating shaft of swingle, fixes the other end of a side torsion bar, the other end of the opposing party's torsion bar and input or the rotating shaft that is pulled away from bar are connected, thereby make the elasticity array of two torsion bars, obtain big actuating force.Promptly, make input or be pulled away from the bar rotation by other power sources before input or before being pulled away from, on two torsion bars, accumulate amount of torsional energy in advance, need to drop into order or be pulled away from order and draw back the locking bar (latch) that drops into or be pulled away from bar, make the actuating force release force of on two torsion bars, accumulating.
Put down in writing as patent documentation 2,, can be reduced to the energy that obtains rotating torques where necessary and run off, so because the little disconnection action high speed that can make circuit breaker of inertia load according to a plurality of torsion bars elastomeric element that connects in upright arrangement.
Patent documentation 1: the spy opens communique 2001-No. 266719
Patent documentation 2: the spy opens clear 63-No. 304542 communiques
But, in the patent documentation 2,, do not considered fully about the shutter that is used for high pressure or electric substation more than the ultra high voltage or switching station or the situation of circuit breaker.That is, under the shutter that high pressure or ultra high voltage are above or the situation of circuit breaker, the maximization that becomes of electric power opening and closing device, the length of the power transfer path from the drive source to the moving contact is elongated.Particularly, under the situation of the gas insulation breaker of insulator type etc., the length of power transfer path can reach several 10cm～number m.Like this, the length of power transfer path is elongated, is subjected to inertia etc. to influence the transmission that produces actuating force and delays, and boundary is also arranged on the high speed.
Summary of the invention
The object of the invention is to provide a kind of does not increase the drive source drives energy, and the length that is not related to power transmission member how, and can make electric power opening and closing device high speed motion such as shutter or circuit breaker.
Electric power opening and closing device of the present invention, one mask have the fixed contact of making relatively also can contact the switching portion of configuration with moving contact with leaving; Generation is to the operating portion of described moving contact to the actuating force of input or the driving of disconnection direction; With the Poewr transmission mechanism that the actuating force of this operating portion is transmitted to described moving contact, it is characterized in that, has the secondary actuating force generating mechanism that constitutes by elastomeric element near the described switching portion in the power transfer path of described Poewr transmission mechanism, this elastomeric element is accumulated power, release force when the opposing party's state moves under a side's of the input of described switching portion or disconnection state.
Like this, drive source complicated variant ground with operating portion, the secondary actuating force generating mechanism of under a side's who drops into or disconnect state, accumulating power be installed in switching portion in the power transfer path of the actuating force that drops into or disconnect near, thereby in the input of moving contact or when disconnecting, except the drive source drives power as operating portion, the secondary actuating force of secondary actuating force generating mechanism is as the actuating force effect of moving contact.Therefore, can make the input or the disconnection high speed of switching portion.
In the past, as the gas-break switch of insulator type, under the elongated situation of power transfer path, do not pass to disconnection (switching) portion immediately from the actuating force of the drive source transmission of being located near the operating portion the earth via Poewr transmission mechanism portion, and after the strain that produces the Poewr transmission mechanism parts, actuating force is delivered to disconnection portion, makes the action of disconnection portion.Disconnection portion is owing to charged, so Poewr transmission mechanism portion uses insulating material such as Fibreglass Reinforced Plastics usually.Such insulating material is because vertical coefficient of elasticity is littler than ferrous metal material, so stretch easily when being subjected to tension, it is big that variation when actuating force passes to Poewr transmission mechanism portion becomes, and the amount so that variation increases produces unnecessary time lag in driving disconnection portion.
According to preferred implementation of the present invention, be configured near the disconnection portion as secondary actuating force with the part of drive source, thereby pass to Poewr transmission mechanism portion from the actuating force of the drive source transmission of operating portion, generation time under the strain of Poewr transmission mechanism parts delay during, also can make the action of disconnection portion, can compensate the loss of time that Poewr transmission mechanism portion produces by secondary actuating force.
Particularly, near the portion of switching described in the power transfer path, preferably with on the electro-mechanical part of the earth insulation secondary actuating force generating mechanism is installed, and can shortens power transfer path from secondary actuating force generating mechanism to moving contact.As a result, can shorten Poewr transmission mechanism, suppress inertia load, and can reduce to transmit and delay from secondary actuating force generating mechanism to moving contact.Therefore, can reduce the actuating force of secondary actuating force generating mechanism, play the effect of high speed.
Particularly, under the situation that moving contact is driven by swingle via a connecting rod, secondary actuating force generating mechanism is installed on the rotating shaft of swingle preferably.
In this case, can extend with the rotating shaft coaxle of the swingle that is connected with moving contact via linkage torsion bar is set, an end of this torsion bar is connected with the rotating shaft of swingle, and the other end is fixed on the fixed part and forms.Like this, cooperate with the action of the swingle that is driven by operating portion, and power is accumulated in torsion bar release, the distortion energy that can effectively utilize torsion bar is as secondary actuating force.
Particularly, the rotating shaft of swingle can be formed hollow tube-shape, torsion bar is connected in the hollow of rotating shaft, an end of torsion bar is fixed on the end of rotating shaft, the other end is pulled out and is fixed on the fixed part from the other end of rotating shaft.Like this, can suppress additional torsion bar and the increase of device length on the rotating shaft direction of the swingle that brings.
In addition, in other execution modes of the present invention, secondary actuating force generating mechanism can replace torsion bar and use disc spring.That is, with the rotating shaft coaxle of the swingle that is connected with moving contact via linkage disc spring is set, an end of disc spring is fixed on the rotating shaft of swingle, the other end is fixed on the fixed part.Like this, the effect same can be accessed, and the increase of the axial device length of rotation of swingle can be further suppressed with torsion bar.
Description of drawings
Fig. 1 is the structure chart of the electric power of expression one embodiment of the present invention with the input state of gas insulation breaker.
Fig. 2 is the structure chart that the electric power of the execution mode of presentation graphs 1 is used the off-state of gas insulation breaker.
Fig. 3 is the profile of line III-III of Fig. 1.
Fig. 4 is the stereogram that the part of feature portion of the execution mode of exploded view 1 is represented.
Fig. 5 is the curve chart of recruitment of driving torque of torsion bar of the execution mode of presentation graphs 1.
Fig. 6 is that the electric power of execution mode of presentation graphs 1 is with the curve chart of the driving torque of gas-insulated disconnection portion.
Fig. 7 is that the electric power of execution mode of presentation graphs 1 is with the curve chart of the action of gas-insulated disconnection portion.
Fig. 8 is the stereogram that the electric power of decomposition other execution modes of the present invention is represented with the part of the feature portion of gas-insulated disconnection portion.
Fig. 9 is the stereogram of the insulator gas insulation circuit breaker of embodiments of the present invention.
Figure 10 is that the execution mode of Fig. 9 is cut a part open and the vertical view seen from the top.
Embodiment
Below, according to execution mode explanation the present invention.
(execution mode 1)
With reference to Fig. 1～Fig. 7, the gas insulation breaker of an execution mode of electric power opening and closing device of the present invention is described.Fig. 1 represents the front elevation of the major part of gas insulation breaker 100.As shown in the drawing, in the gas insulation breaker 100, the grounding container 2 of cylinder tank shape is arranged on the pallet 13 and forms, in the 2a of the inside of grounding container 2, enclose gas, for example SF6 gas (sulfur hexafluoride gas) of insulating properties with the pressure of regulation.Take in the disconnection portion 402 of turn-off current in the inside of grounding container 2.Connect linkage 401 in disconnection portion 402, the linkage 401 not shown operating portion interior with being accommodated in control box 12 is connected.In addition, use the gas insulation breaker of 2 disconnect modes in the present embodiment, but disconnection of the present invention portion can be suitable under the single-point disconnect mode of single-point also naturally with 2 disconnection portions.
Fig. 1 represents the state that disconnection portion 402 drops into, and Fig. 2 represents to disconnect the state that action is finished.The profile of the line III-III of Fig. 3 presentation graphs 1, Fig. 4 represents the exploded perspective view of the major part of present embodiment.
Having linkage 401 as the secondary actuating force generating mechanism of the feature in the present embodiment is fixedly supported upon grounding container 2 via insulating cylinder 10 and is assembled in the framework 3.That is, linkage 401 has torsion bar 1 as secondary actuating force generating mechanism, is bearing in swingle 4 on the framework 3 freely, constitutes via shank connecting rod 8 that is connected with swingle 4 and the connecting rod 9 that is connected with the other end of connecting rod 8 via shank around the axle rotation around consistent with the axle center of torsion bar 1.One end of swingle 4 is connected with an end of the connecting rod 5 of disconnection portion 402 via shank.Torsion bar 1 and swingle 4 and connecting rod 8 and two disconnection portions 402 are corresponding and be symmetrical arranged respectively.Connecting rod 9 pulled into the outside of grounding container 2 via connecting rod 11.Being provided for sealing the sealing 22 of the gas of the inside 2a in the grounding container 2 in the portion pulling out of connecting rod 11, slides in sealing 22 in the side of connecting rod 11.Operating portion in connecting rod 11 and the control box 12 is connected.
The profile of the detailed structure around the torsion bar 1 of the line III-III of Fig. 3 presentation graphs 1.As shown in the figure, the axial region 4a of swingle 4 forms hollow tube-shape, and the both ends of axial region 4a rotate via bearing 14a, b and are bearing in freely on the framework 3.One side's of swingle 4 end 4b goes up an end 1a of engaging torsion bar 1 and retrains rotation mutually.That is, the end 1a of torsion bar 1 and 1b are implemented the processing of spline or sawtooth, square shaft etc., the end 4b of swingle 4 is also implemented identical processing.
The other end 1b of torsion bar 1 be entrenched in to discoideus fixed part 16 implemented processing such as spline or sawtooth, square shaft and the holding section on.Fixed part 16 is combined in a side the lip portions 15a of fixed part 15 that two ends have the hollow cylindrical of bead 15a, b.The opposing party's lip portions 15b combines with bearing 14a, by framework 3 supportings.In addition, bead 15b also can directly combine with framework 3.
Because form above structure, so an end 1a of torsion bar 1 becomes the movable end of rotating with the rotation of swingle 4, other end 1b forms stiff end.
The action that has as the gas insulation breaker 100 of the present embodiment of the secondary actuating force generating mechanism of above formation is described.The action of swingle 4 and torsion bar 1 at first, is described.Swingle 4 and torsion bar 1 constitutes relation shown in Figure 3, so if swingle 4 sways, then the end 1a with the chimeric torsion bar 1 of the end 4b of swingle 4 rotates.On the other hand, fixing because the other end 1b of torsion bar 1 is chimeric with framework 3, so the rotatory force that is applied on the end 1a of torsion bar 1 is accumulated as the distortion energy of torsion bar 1.
On the position of the swingle 4 of input state shown in Figure 1, in torsion bar 1, accumulate the distortion energy.Under state, if the open command of gas insulation breaker 100 is input to the operating portion in the control box 12, then the energy of accumulating on for example helical spring as the drive source of operating portion drives connecting rod 11 to the arrow B direction.Thus, connecting rod 9 moves downwards in the drawings, and connecting rod 8 also moves downwards with its interlock.Follow moving of connecting rod 8, swingle 4 rotates in the direction that moving contact 6 is left from fixed contact 7 around bearing 14a, b.At this moment, the distortion energy that is accumulated on the torsion bar 1 is released, and works as the rotatory force of swingle 4.As a result, the actuating force that the horizontal direction of leaving from fixed contact 7 at moving contact 6 moves connecting rod 5 increases, and moving contact 6 leaves from fixed contact 7, and electric current is disconnected rapidly.When this disconnection action was finished, swingle 4 is the retainer 3a of butt framework 3 and 3b and stop roughly, becomes off-state shown in Figure 2.
Then, set forth the action of moving to the input state of Fig. 1 from the off-state of Fig. 2.Under the off-state, if 100 inputs drop into instruction to gas insulation breaker, then the operating portion starting in the control box 12 drives to the arrow C direction connecting rod 11.Thus, connecting rod 9 is moved upward in the drawings, and connecting rod 8 also is moved upward with its interlock.Follow moving of connecting rod 8, swingle 4 rotates, and connecting rod 5 and moving contact 6 move in the horizontal direction.At this moment,, rotate with an end 1a of the chimeric torsion bar 1 of end 4b by the rotation of swingle 4, and the other end 1b of fixing torsion bar 1 between accumulate the distortion energy.Via such action, moving contact 6 contact fixed contacts 7, the contact is dropped into, and forms input state shown in Figure 1.
At this, describe the effect that the disconnection action of moving contact 3 is quickened by the distortion energy that is accumulated on the torsion bar 1 in detail with reference to Fig. 4～7.In order to illustrate, be angle [alpha]=0 with the operating angle α of swingle shown in Figure 14 at the input state of circuit breaker, to follow to disconnect action, swingle 4 rotations are at off-state angle [alpha]=α 1 of Fig. 2.
At first, during assembling linkage 401, before assembling torsion bar 1, the fixed part 15,16, gas insulation breaker 100 forms off-state.Under this state, as shown in Figure 4, in the axial region 4a of the swingle 4 of open position, insert the end 1a of chimeric torsion bar 1.Afterwards, fixed part 15 is connected with bearing 14, and when fixed part 16 was connected with fixed part 15, the end 1b of torsion bar 1 inserted chimeric fixed part 15.Like this, in the off-state of gas insulation breaker 100, torsion bar 1 is so that almost unwrung state is assembled.
After the assembling of linkage 401, carry out the input action of gas insulation breaker 100.Move by dropping into, the rotation of accompanying rotation bar 4, torsion bar 1 is twisted, and accumulates elastic energy, and under the input state of gas insulation breaker 100, the elastic energy of torsion bar 1 is maximum.
Fig. 5 represent the operating angle α of swingle 4 and only torsion bar 1 effect down swingle 4 around the driving torque of axis of rotation.Torque is 0 under the off-state of angle [alpha]=α 1, and the input state of angle [alpha]=0 is breakdown torque △ Tmax down.
Fig. 6 represents that the swingle 4 when swingle 4 is applied torque is around the driving torque in axle center by being accumulated in as the actuating force on for example helical spring of the drive source of operating portion.(a) torque of the situation of expression conventional art, (b) torque of expression situation of the present invention.In addition, the driving torque of swingle 4 around the axle center that converses from the actuating force of operating portion is T0 at the input state, is T1 in off-state.In addition, in Fig. 6, T0〉T1 is that drive source at operating portion uses helical spring situation.In addition, under the situation of the oil pressure of the drive source of operating portion employing high pressure, T0 ≈ T1.Can be clear according to Fig. 6, under the situation of the present invention, as shown in Figure 5, appended the driving energy of torsion bar, under the input state of gas insulation breaker 100, driving torque increases △ Tmax than the situation of conventional art.
Fig. 7 represents the stroke characteristic of the moving contact 6 in disconnection when action in the present embodiment.(a) being the situation of conventional art, (b) is situation of the present invention.At this, the moment that gas insulation breaker 100 is imported open command is the moment 0.The only structure starting in the operating portion during 0 to the moment t1 constantly is so moving contact 6 is failure to actuate.In addition, near the moving contact 6 conduction open positions, then produce braking force by the not shown buffer of being located in the operating portion, the action of connecting rod 8,9 is slowed down, and moving contact 6 slows down and stops at the open position of stipulating.Under the situation of the present invention, in order to increase the torque that drives moving contact 6, compare with the situation of conventional art as shown in Figure 6, the high speed of moving contact 6 disconnects action becomes possibility.
As described above, in the present embodiment, the secondary actuating force generating mechanism based on torsion bar 1 is set near the swingle 4 of the linkage of moving contact 6; So can increase the actuating force of moving contact 6, make to disconnect the action high speed.In addition, form torsion bar 1,, also assemble easily and adjust so break away from easily and installation by spline or sawtooth or the chimeric structure of square shaft.
In addition, in the present embodiment, turn to example with the high speed that disconnects action and be illustrated, but, carry out as follows in order to make present embodiment be applicable to the high speed that drops into action.That is, make gas insulation breaker 100 form the input states, assembling torsion bar 1 then disconnects under the action energy accumulation on the torsion bar 1, and this energy is released in the action of next one input, becomes possibility so drop into the high speed of action.
But, owing to drop into and disconnect action and can not use same torsion bar and high speed, so that both move under the situation of high speed, Poewr transmission mechanism is divided into two systems etc., the secondary actuating force generating mechanism of the power of accumulating under the input state of moving contact 6 is installed in power transfer path separately and makes and disconnect the action high speed, perhaps be equipped with to make and drop into the action high speed at the secondary actuating force generating mechanism that is pulled away from the power of accumulating under the state.
At this, in the present embodiment, represented in power transfer path the example of assembling torsion bar near the swingle of moving contact 6, also can consider to replace such structure, and torsion bar is configured in the operating portion in the control box 12.But, as shown in Figure 1, in gas insulation breaker 100, between control box 12 and moving contact 6, has linkage 401 as Poewr transmission mechanism, with respect to the movable member that constitutes linkage 401 and the inertia force of the movable member in the operating portion, drive of the breakdown torque minimizing of the actual torque of moving contact 6 than the operating portion setting.In addition, in the movable member of the Poewr transmission mechanism that connects disconnection portion 402 and control box 12 in order to keep insulation, have and constitute by material with insulating properties, but the vertical coefficient of elasticity of insulating material is littler than iron type materials, it is also big to diminish under identical stress, so there is the problem of the transmission loss that produces actuating force.In addition, general, rock in the shank connecting portion existence of connecting rod 9 and connecting rod 8 and swingle 4 and connecting rod 5, so there is the transmission needs of the actuating force problem of unnecessary time.
With respect to this, in the present embodiment, near configuration torsion bar 1 moving contact 6 is so can compensate amount of power loss under the strain of the inertia force of the parts that constitute Poewr transmission mechanism and insulating material.In addition, by being accumulated in the actuating force on the torsion bar 1, under the input state, because the linkage component that constitutes Poewr transmission mechanism is often acted on tension load or compressive load, so rocking in appearance of shank connecting portion be can't see, do not produce the loss of the passing time of actuating force.
(execution mode 2)
The gas insulation breaker of other execution modes of electric power opening and closing device of the present invention then, is described.Fig. 8 represents the exploded perspective structure chart of secondary actuating force generating mechanism of feature portion of the gas insulation breaker 100 of present embodiment.What present embodiment and execution mode 1 were different is, replaces torsion bar and disc spring is assembled on the rotating part of swingle 4 and forms secondary actuating force generating mechanism.Other aspects are identical with execution mode 1, omit explanation so use identical Reference numeral.
As shown in Figure 8, as the disc spring 31 of secondary actuating force generating mechanism,, the opposing party's of leaf spring 31e end 31c is fixed on cylindrical shell 31f and forms by the fixing end 31d that forms the side of Vorticose leaf spring 31e on axial region 31b.The cardinal extremity rotation of axial region 31b is bearing on the cylindrical shell 31f freely, and the shaft end 31a of the front end of axial region 31b and the axial region 4a of swingle 4 are chimeric.That is, shaft end 31a is formed on spline, sawtooth or the square shaft, and is chimeric with last spline, sawtooth or the square shaft hole that forms of the axial region 4a of swingle 4.And the shaft end 31a of the axial region 31b of leaf spring 31e inserts and is assembled in the fitting portion on the axial region 4a that is formed on swingle 4 from bearing 14a side shown in Figure 2, and cylindrical shell 31f is fixedly supported upon on the framework 3.Thus, the actuating force accumulated on the leaf spring 31e revolving force as axial region 31b can be taken out, drive swingle 4.
Owing to form such structure,, can play the effect identical with execution mode 1 according to present embodiment.That is, disconnect the action high speed, in the off-state of gas insulation breaker 100, make the shaft end 31a of disc spring 31 chimeric with the axial region 4a of swingle 4 in order to make, drop into move and in disc spring 31 energy accumulation.Thus, when ensuing input was moved, the energy of accumulating on disc spring 31 was released, and can quicken the action of moving contact 6.
According to present embodiment, to compare with the torsion bar 1 of execution mode 1, the size of the footpath direction of disc spring 31 is big, but owing to can reduce the size of axis direction, so be fit to be accommodated in the grounding container 2.
(execution mode 3)
Use Fig. 9～Figure 10 that the electric power opening and closing device of other execution modes of the present invention is described.Present embodiment is not the gas insulation breaker that the present invention is applicable to the grounding container that uses the container case shape, but is applicable to the example of insulator gas insulation circuit breaker.Fig. 9 cuts the stereo appearance figure that the part of the insulator gas insulation circuit breaker of present embodiment is represented open, and Figure 10 is the vertical view of seeing from the arrow directions X of Fig. 9.
As shown in these figures, insulator gas insulation circuit breaker 200 is taken in disconnection portion in the tube of two insulators 19 of the tubular of relative and approximate horizontal configuration.The opposite end of two insulators 19 is connected with two faces of the framework of airtight formation 3.The framework 3 that connects two insulators 19 is arranged on the pallet 13 via insulator 20,21.Fixedly take in the control box 12 of operating portion in the pallet 13.In addition, with the insulator 19 parallel insulators 18 that are provided with side by side and respectively, take in not shown input opposed body in the inside of insulator 18.Enclose gas, for example SF6 gas (sulfur hexafluoride gas) of insulating properties by the pressure of regulation in the tube of each insulator 18,19,20,21 and in the framework 3.
The fixed contact 7 that constitutes disconnection portion is fixed on the insulator 19 via insulating support unit such as not shown insulating cylinder, moving contact 6 and fixed contact 7 can contact that to leave ground opposed, can be bearing in slidably on the insulator 19 at direction of principal axis via insulating support unit such as not shown insulating cylinder.Moving contact 6 and fixed contact 7 constitute in the same manner with execution mode 1.The end opposite of the contact jaw of moving contact 6 via bar-shaped connecting rod 5 be accommodated in framework 3 in the swingle 4 of linkage be connected.
As shown in figure 10, take in the linkage that constitutes by swingle 4, connecting rod 8, connecting rod 9 etc. in the inside of framework 3.The structure of linkage has the structure identical with execution mode shown in Figure 1.That is, the end of the axial region 4a of swingle 4 and an end of torsion bar 1 are chimeric, and the other end is chimeric with the rotating shaft that driving is accommodated in the input opposed body in the insulator 18.That is, though not shown, the linkage of in insulator 18, taking in opposed body, the shutter that is connected with this opposed body and opening and closing this shutter.And the rotating shaft of this linkage is pulled out from the tube end of insulator 18, and the rotating shaft via gear mechanism with swingle 4 is connected.
In addition, the insulator gas of present embodiment insulation circuit breaker 200 is owing to the outer surface of framework 3 is present in the atmosphere, so the structure of the torsion bar 1 and the connecting portion of swingle 4 is different with execution mode 1 and 2.That is, on the bearing 14 that rotates the axial region 4a that supports swingle 4 freely, rotation axis seal body 14c is set, prevents that the insulating properties gas 3c of framework 3 inside from flowing out in atmosphere.In addition, seal preferably is provided with more than two places at direction of principal axis.In addition, the fitting portion of the axial region 4a of an end 1a of torsion bar 1 and swingle 4 can be arranged on the atmospheric side of rotation shaft seal 14c.Under the situation of insulator gas insulation circuit breaker 200, because to the outstanding length of the torsion bar 1 of arrow E direction without limits from framework 3, so after the circuit breaker assembling is finished, can change the torsion bar unit from the outside, make the high speed of responsiveness and adjustment become easy.The linkage of such structure is symmetrically set on two insulators 19.
Two swingles 4 and Fig. 1 similarly are connected with one connecting rod 9 via two connecting rods 8 by shank.Connecting rod 9 is positioned at insulator 20,21 inner connecting rod 9a, the 9b that are provided with by two and constitutes, and connecting rod 9b is connected with the connecting rod 11 of pulling out from the lower end of insulator 21.Operating portion in connecting rod 11 and the control box 12 is connected.
Owing to form such structure, so according to present embodiment, make operating portions starting in the control box 12 by disconnecting, drop into instruction, connecting rod 11 is driven at above-below direction, then via connecting rod 9a, 9b swingle 4 is rotated, moving contact 6 and fixed contact 7 are dropped into, are disconnected.Particularly, with execution mode 1 similarly, by the secondary actuating force generating mechanism that constitutes by torsion bar 1 actuating force of swingle 4 is increased, disconnect or the speed of input high speed so can make.
Particularly, under the situation of insulator gas insulation circuit breaker 200, to insulator effect high voltage, so be difficult on the position of torsion bar 1, to be provided with electric or secondary actuating force generating mechanism such as oil pressure actuator.This point, the secondary actuating force generating mechanism of accumulating, discharging based on elastic energy such shown in the present embodiment is suitable.In addition, in the present embodiment, replace torsion bar 1 and suitable disc spring 31 shown in Figure 8, also can play same effect.
In the present embodiment, the example that 20,21 expressions of the insulator of vertical direction are two, but according to disconnecting the combustion capacity number of variations of insulator, the transmission of power distance L 2 shown in Figure 9 to the center line of moving contact 6 above control box 12 also changes.In circuit breaker, under the situation of the transmission of power distance L 1 of distance container case shape circuit breaker shown in Figure 1, be generally L2 with same interrupting capacity〉L1.Therefore, the movable part quality of linkage that comprises connecting rod 9a, the 9b of present embodiment opens circuit than the container case shape of execution mode 1 and thinks highly of.
In addition, in the present embodiment, the cylindrical shell of taking in torsion bar 1 so carry out the adjustment of torsion bar 1 easily, so implement the adjustment of the driving energy of circuit breaker integral body easily, can be waited until the gas insulation breaker that reliability is high from framework 3 outstanding setting to atmosphere.
More than, according to a plurality of execution modes the present invention has been described, according to the present invention in the electric power opening and closing devices such as circuit breaker of linkage with attended operation portion and disconnection portion, the secondary actuating force generating mechanism of the actuating force that increases moving contact is set in as near the power transfer path the moving contact of high voltage power receiving section, so can more effectively drive moving contact than the situation that the driving energy that makes operating portion increases, can be to make electric power opening and closing device on-off action at a high speed.
In addition, secondary actuating force generating mechanism of the present invention, simple in structure, after the composition of electric power opening and closing devices such as gas insulation breaker is finished, can load and unload secondary actuating force generating mechanism, so the adjustment of responsiveness is easy.
Claims (8)
1, a kind of electric power opening and closing device, it has:
Make fixed contact relatively also can contact the switching portion of configuration with moving contact with leaving;
Generation is with the operating portion of described moving contact to the actuating force of input or the driving of disconnection direction; With
The actuating force of this operating portion to the Poewr transmission mechanism that described moving contact transmits, be is characterized in that,
Has the secondary actuating force generating mechanism that constitutes by elastomeric element near the described switching portion in the power transfer path of described Poewr transmission mechanism, described elastomeric element is accumulated power under a side's of the input of described switching portion or disconnection state, and when the state to the opposing party moves release force.
2, electric power opening and closing device as claimed in claim 1 is characterized in that, described secondary actuating force generating mechanism is configured near the of described switching portion in the power transfer path of described Poewr transmission mechanism and with the electro-mechanical part of the earth insulation.
3, electric power opening and closing device as claimed in claim 1 is characterized in that, described secondary actuating force generating mechanism has torsion bar.
4, electric power opening and closing device as claimed in claim 3 is characterized in that, described secondary actuating force generating mechanism has swingle that is connected with described moving contact via linkage and the rotating shaft that forms the described swingle of hollow tube-shape,
One end of the described torsion bar that connects in the hollow of described rotating shaft is fixed in an end of described rotating shaft, and its other end is pulled out from the other end of described rotating shaft and is fixed in fixed part.
5, electric power opening and closing device as claimed in claim 1 is characterized in that, described secondary actuating force generating mechanism has disc spring.
6, a kind of gas insulation breaker is characterized in that, has:
First insulator of hollow tube-shape, it sets in the horizontal;
Framework, it is connected with the tube end of this first insulator;
Second insulator of hollow tube-shape, its lower end edge vertical direction from this framework connects;
Pallet, it supports the lower end of this second insulator;
Disconnection portion, it can contact and be accommodated in described first insulator with leaving, and is made of fixed contact and moving contact;
Swingle, it is connected with described moving contact via connecting rod, and can be configured in drivingly in the described framework described moving contact on described contact departure direction;
Linkage, its be accommodated in the described framework and described second insulator in, and described swingle is rotated driving;
Drive operating portion, it is located on the described pallet, via described linkage described moving contact is driven on described contact departure direction;
The rotating shaft of described swingle, it is rotatably freely supported on described framework;
Elastomeric element, one end are fixed on the rotating shaft of described swingle, and the other end is fixed on the described framework, accumulate power under a side's of the input of described disconnection portion or disconnection state, and when the state to the opposing party moves release force; With
Insulating gas, it encloses the inside of described first insulator, described framework and described second insulator.
7, gas insulation breaker as claimed in claim 6 is characterized in that,
Described elastomeric element is a torsion bar,
This torsion bar connects in the cylindrical shell of the rotating shaft of described swingle, and is fixed on the described rotating shaft from the outstanding end of described framework wall, and its other end is fixed on the fixed part.
8, a kind of gas insulation breaker is characterized in that, has:
The container of tubular, it encloses insulating gas;
Disconnection portion, it makes fixed contact relatively also can contact with moving contact and is arranged in the described container with leaving;
Framework, itself and described container insulate and are arranged in the described container;
Swingle, it is connected with described moving contact, and can be on the contact departure direction of described moving contact rotatably and rotation is bearing on the described framework freely;
Linkage, the one end is connected with described swingle, the other end from described container airtight and the insulation pull out;
Operating portion, it is connected with the other end of described linkage, via this linkage described swingle is rotated; With
Elastomeric element, the one end is fixed on the rotating shaft of described swingle, the other end is fixed on the described framework, according to the direction of rotation of described swingle and under a side's of the input of described disconnection portion or disconnection state, accumulate power, and when the state to the opposing party moves release force.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007224907 | 2007-08-30 | ||
| JP2007-224907 | 2007-08-30 | ||
| JP2007224907A JP4703616B2 (en) | 2007-08-30 | 2007-08-30 | Gas insulated circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101425422A true CN101425422A (en) | 2009-05-06 |
| CN101425422B CN101425422B (en) | 2012-08-08 |
Family
ID=40555111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102151369A Active CN101425422B (en) | 2007-08-30 | 2008-09-01 | Electric power opening and closing device and gas insulation circuit-breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4703616B2 (en) |
| CN (1) | CN101425422B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849845A (en) * | 2013-12-26 | 2016-08-10 | 三菱电机株式会社 | Opening and closing device |
| CN110392917A (en) * | 2017-02-21 | 2019-10-29 | 西门子股份公司 | Electric switching system |
| WO2021073088A1 (en) * | 2019-10-17 | 2021-04-22 | 赫兹曼电力（广东）有限公司 | Transmission device for three-station mechanism of high-voltage cabinet and transmission method therefor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2990053B1 (en) * | 2012-04-26 | 2015-01-30 | Alstom Technology Ltd | DEVICE FOR ACTUATING THE CONTACTS OF A CIRCUIT BREAKER COMPRISING A TORSION BAR |
| JP6236240B2 (en) * | 2013-07-23 | 2017-11-22 | 株式会社東芝 | Gas circuit breaker |
| CN104465203B (en) * | 2014-12-04 | 2016-12-07 | 中国西电电气股份有限公司 | A kind of primary cut-out actuating device |
| CN116092845B (en) * | 2023-04-03 | 2023-06-16 | 宁波天安智能电网科技股份有限公司 | Series digital double-break high-voltage switch device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2679499B2 (en) * | 1991-12-27 | 1997-11-19 | 三菱電機株式会社 | Circuit breaker and switch operating mechanism |
| JP2931863B2 (en) * | 1995-05-22 | 1999-08-09 | 株式会社戸上電機製作所 | Gas circuit breaker |
| JP3239353B2 (en) * | 1996-04-25 | 2001-12-17 | 株式会社戸上電機製作所 | Switch operation mechanism |
| JPH09326214A (en) * | 1996-06-05 | 1997-12-16 | Energy Support Corp | Contact structure in switching device |
| JP2007087836A (en) * | 2005-09-26 | 2007-04-05 | Hitachi Ltd | Gas-blast circuit breaker for electric power |
-
2007
- 2007-08-30 JP JP2007224907A patent/JP4703616B2/en active Active
-
2008
- 2008-09-01 CN CN2008102151369A patent/CN101425422B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849845A (en) * | 2013-12-26 | 2016-08-10 | 三菱电机株式会社 | Opening and closing device |
| CN110392917A (en) * | 2017-02-21 | 2019-10-29 | 西门子股份公司 | Electric switching system |
| CN110392917B (en) * | 2017-02-21 | 2022-02-08 | 西门子能源全球有限公司 | Electrical switching device |
| WO2021073088A1 (en) * | 2019-10-17 | 2021-04-22 | 赫兹曼电力（广东）有限公司 | Transmission device for three-station mechanism of high-voltage cabinet and transmission method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101425422B (en) | 2012-08-08 |
| JP2009059542A (en) | 2009-03-19 |
| JP4703616B2 (en) | 2011-06-15 |
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