CN208093429U - Breaker - Google Patents

Abstract

The utility model is related to a kind of breakers, breaker includes rack, rack is equipped with isolated location, ground unit, breaker unit and operating mechanism, ground unit has grounding shaft, isolated location has isolation axis, operating mechanism have with grounding shaft or be isolated axis transmission coordinate to control the operating shaft that earthing switch is cut-off, grounding shaft be isolated between axis be connected with kinematic link so that grounding shaft with axis synchronization action is isolated, the pole of breaker unit is assemblied in along perpendicular to plane extension where the respective side of rack in rack, the form being arranged in this way is mainly in view of pole needs especially resistance to the case where being influenced by the adverse circumstances, it is laterally disposed to prevent dust and foreign matter from entering major loop part.Lateral arrangement is also convenient for installation of the pole in rack simultaneously.

Description

Breaker

Technical field

The utility model is related to a kind of breakers.

Background technology

In field of power transmission, being widely used for breaker is general, it is switchgear important in electric system, is responsible for control The double action of system and protection circuit, at present in the system of 40.5kV, disconnecting switch, earthing switch and vacuum circuit breaker are general It is installed separately, the complicated mechanical interlock mechanism of setting is also needed between them, so that the volume of switchgear is big, structure Complexity causes the excessive occupied space of switchgear, and there is complicated operating mechanism, operating personnel individually operated vacuum to be needed to open Pass, disconnecting switch and earthing switch, cumbersome in this way, if operating personnel's operation is unskilled to lead to operation error, operation is not Flexibly, installation and maintenance workload are big, and equipment failure rate is high.With the upgrading of switchgear, miniaturization, combined type become The development trend of vacuum circuit breaker.

And a kind of vacuum circuit breaker is disclosed in the Chinese patent document that Authorization Notice No. is CN104319163B, it wraps Include breaker unit, isolated location, ground unit and operating mechanism, wherein isolated location, breaker unit and ground unit according to Secondary to be longitudinally arranged in rack, isolated location and ground unit are connected by link mechanism realization, are arranged on framework lateral plate Operating mechanism and isolated location and ground unit three between realize interlocked brake.Wherein isolated location include isolation axis, absolutely Edge pull rod, isolation knife, insulated column etc., isolation knife are linked by insulated tension pole with axis is isolated, and then realize the break-make of isolated location. Breaker unit includes that pole, pole are vertically arranged in the side of rack, and upper end has for connecting with isolation knife Logical connecting terminal, the arc-chutes in pole are driven by the second insulated tension pole and connecting lever, and it is real to pass through breaker axis Now control.Ground unit includes earthing, grounding shaft, insulated column etc., and grounding shaft is connected by link mechanism with being isolated between axis. In actual operating process, grounding shaft action is controlled by operating mechanism, axis action is isolated in synchronous control, and then is grounded Interlocking action between axis and isolation axis.

But the pole of this vacuum circuit breaker is vertically arranged in the side of rack, cannot be satisfied pole needs It is especially resistance to be influenced by the adverse circumstances, cause dust and foreign matter to enter in major loop part, while the connection between each unit Structure is more complicated, inconvenient in assembly and later maintenance.

Utility model content

The purpose of this utility model is to provide a kind of breakers, to solve the pole of breaker in the prior art Being vertically arranged causes dust and foreign matter to enter the problems in major loop part.

To achieve the above object, the technical solution of the breaker of the utility model is：

Breaker, including rack, rack are equipped with isolated location, ground unit, breaker unit and operating mechanism, ground connection Unit with grounding shaft, isolated location with isolation axis, operating mechanism have with grounding shaft or be isolated axis transmission coordinate to control The operating shaft that earthing switch is cut-off is connected with kinematic link so that grounding shaft is synchronous with axis is isolated dynamic between grounding shaft and isolation axis Make, the pole of breaker unit is assemblied in along perpendicular to plane extension where the respective side of rack in rack.

Further, in order to further reduce the overall volume of breaker, breaker unit, isolated location and ground connection are single Member is separately positioned on the opposite two sides of rack.Such arrangement form enables to the ruler on the side extending direction of rack Very little comparison is reasonable, compact, improves the reliability and stability of mechanism.

Further, in order to further reduce breaker height, the opposite both sides for defining rack are left and right sides, described disconnected Road device unit and ground unit are arranged on the right side of rack, and the isolated location is arranged in the left side of rack.Due to isolated location Overall structure it is higher than the whole height of ground unit, isolated location is provided separately within to the side of rack, can be preferable The lateral space using rack, make the occupied space smaller of breaker.

Further, in order to ensure that the simple and convenient of Standard, isolated location include the left end for being connected to pole And with the isolated insulation pillar of the coaxial extension of pole, the left end of isolated insulation pillar have for in pole The insulating contact that static side connector is conductively connected, isolated insulation pillar and/or pole are equipped with for being fixedly connected with rack Connection structure.Directly conductive contact can be connect with insulating contact in this way, do not have in addition setting support or connection structure, knot Structure is simpler.

Further, it connects for convenience, the connection structure is the fixed station being arranged in the outer circumferential of pole Rank.Facilitate processing, and easy to connect.

Further, in order to ensure compact overall structure when assembly, every located off-axis in grounding shaft and breaker list Between the breaker axis of member.The Standard of each unit is fairly simple, and maintains easily and repair mutually without interference between unit Reason.

Further, in order to facilitate the connection between breaker unit and ground unit, pole backwards to rack One end is provided with support plate, and support plate is equipped with the conducting block being electrically connected with the movable end of arc extinguishing chamber in pole, ground unit Including the edge that is fixed on the rack perpendicular to ground insulation pillar of the respective panels towards right extension of rack, ground insulation pillar There is right end support to arrange, and ground contact seat is connected on support row, overlap joint row is connected between support row and conducting block.Ensure open circuit The ground connection of device unit, and it is simple in structure, it is easy to maintain.

Further, in order to ensure assembly when compact overall structure, the breaker unit further include rotation setting The connecting lever coordinated on the supporting plate and with movable end of arc extinguishing chamber transmission, is connected with absolutely between connecting lever and the breaker axis of breaker unit Edge pull rod.The distribution form of the extending direction opposed of insulated tension pole and movable end of arc extinguishing chamber is dynamic compared to previous arc-chutes The form that end extension is connected with drive mechanism is compared, and can be greatly reduced occupied by the left and right directions of breaker unit Space ensure that compact overall structure type when assembly.

The utility model has the beneficial effects that：Compared with the prior art, the breaker involved by the utility model, by Arrangement isolated location, ground unit and breaker unit are integrated in rack so that the breaker has earthing switch, disconnecting switch The linkage mechanism being integrated, meanwhile, the operating mechanism of disconnecting switch, operating mechanism of earthing switch etc. are eliminated, ensures open circuit Device it is integrally-built simple, and small volume, be easily installed maintenance, it is only necessary to control the operation on breaker when operation Axis acts, and the interlocking effect that isolation is closed, ground connection is divided and isolation point, ground connection are closed can be realized in the setting by kinematic link, grasps It makes comparisons flexibly.Further, the pole of breaker unit extends assembly along perpendicular to plane where the respective side of rack In rack, the form being arranged so mainly considers that pole needs especially resistance to the case where being influenced by the adverse circumstances, It is laterally disposed to prevent dust and foreign matter from entering major loop part.Lateral arrangement is also convenient for pole in rack simultaneously Installation.

Description of the drawings

Fig. 1 is the example structure schematic diagram of the breaker of the utility model；

Fig. 2 is the left perspective schematic diagram of Fig. 1；

Fig. 3 is the structural schematic diagram of pole in Fig. 1.

Reference sign：1- racks；2- operating mechanisms；3- breaker units；4- ground units；5- isolated locations；6- Overlap joint row；7- drive links；31- poles；32- breaker axis；33- support plates；34- arc-chutes connecting levers；35- major insulations are drawn Bar；36- first connecting rods；The first connecting levers of 37-；41- grounding shafts；42- earthings；43- earthing bars；44- ground contact seats；45- is supported Row；46- ground insulation pillars；47- second connecting rods；48- ground springs；51- isolated insulation pillars；52- isolation knifes；53- is isolated Insulated tension pole；54- supporting insulators；Touch base is isolated in 55-；56- spacer springs；57- insulating contacts；Axis is isolated in 58-；311- copper connects Head；312- conducting rods；313- gauze screens；314- vacuum interrupters；315- inserts；316- fixes step.

Specific implementation mode

The embodiment of the utility model is described further below in conjunction with the accompanying drawings.

The specific embodiment of the breaker of the utility model, as shown in Figure 1 to Figure 3, in this embodiment, breaker includes Rack 1, rack 1 are equipped with breaker unit 3, isolated location 5 and ground unit 4, and the generally rectangular frame structure of rack 1 is fixed Its adopted length direction along the vertical direction, width direction along the longitudinal direction, thickness direction along the vertical direction, certainly, in other implementations In example, the overall structure of rack 1 is not specifically limited, and those skilled in the art can be arbitrarily devised according to the actual needs, In the present embodiment, above-mentioned breaker unit 3, isolated location 5 and ground unit 4 are separately fixed at the different location of rack 1, The right upper portion in rack 1 is arranged in middle breaker unit 3, and the lower right side in rack 1 is arranged in ground unit 4, and isolated location 5 is set It sets in the left side of rack 1, while operating mechanism 2 is further fixed in the front side of rack 1, operating mechanism 2 has and breaker unit 3 The input shaft of cooperation also has the operating shaft coordinated with ground unit 4.It is such to be distributed in isolated location 5 and ground unit 4 On the left and right opposite flank of rack 1, in actual assembling process, the Standard of various pieces unit is fairly simple, and Between unit mutually repairing is maintained easily without interference.

For operating mechanism 2, operating mechanism 2 is the core of breaker, by energy storage section, running part and dropout portion It is grouped as, three parts all between two clamping plates, using this layout, on the one hand reduce space bridge joint transmission ring Section, makes structure become simple, compact, reduces energy consumption, while but also the mechanically actuated reliability of breaker greatly improves.? In the present embodiment, the input shaft and operating shaft of operating mechanism 2 extend along the longitudinal direction, and wherein operating shaft is extended through to rack 1 inside.

For breaker unit 3, in the present embodiment, the three-phase main conductive circuit of breaker unit 3 uses sealing Formula structure, i.e. breaker unit 3 include pole 31, and pole 31 is horizontally fixed on the upper end of rack 1, with operating mechanism 2 place at orthogonal form on horizontal plane, and the form being arranged in this way is mainly in view of the needs of pole 31 are especially resistance to The case where being influenced by the adverse circumstances, horizontal placement can prevent dust and foreign matter from entering major loop part.Pole simultaneously 31 the specific structure is shown in FIG. 3, and vacuum interrupter 314, inserts 315, conducting rod 312, shielding are additionally provided in pole 31 Net 313, copper sleeve 311 etc., various pieces by the poured with epoxy resin of insulation together, in the central raised of pole 31 There are one fixed steps 316, pole 31 are fixed on the sealing plate of rack 1 by the fixation step 316, certainly at other In embodiment, fixed step may be set to be by the outwardly directed connecting board structure of pole.

The left end of pole 31 extends to the left side of rack 1, while in pole 31 backwards to one end of step surface Radially opposite sides be additionally provided with inserts 315, be used for fixed support plate 33, major insulation pull rod 35, arc extinguishing can be installed in support plate 33 Room connecting lever 34, conducting block etc..As described above, 311 part of copper sleeve of pole 31 is fixed in rack 1, arc-chutes it is quiet End is fixed on 311 side of copper sleeve, and moved end is arranged backwards to rack 1, and the input shaft of breaker is arranged in rack 1 simultaneously, leads to Cross intermediate transmission link control movable end of arc extinguishing chamber action, and then realize the break-make of breaker unit 3, such drive mechanism with The distribution form of the extending direction opposed of movable end of arc extinguishing chamber extends compared to the moved end of previous arc-chutes is connected with transmission The form of structure is compared, and the space occupied by the left and right directions of breaker unit 3 can be greatly reduced, and ensure that assembly When compact overall structure type.Certainly, in other embodiments, the moved end of arc-chutes can also be arranged towards rack, is used Traditional drive mechanism.

Meanwhile being acted to realize that operating mechanism 2 can control breaker unit 3, in the present embodiment, breaker unit 3 further include the breaker axis 32 for being threaded through 1 top of rack along the longitudinal direction, the main connecting lever of three-phase is provided on breaker axis 32, together The main connecting levers of Shi Sanxiang are equipped with and are connected with major insulation pull rod 35, and the other end of major insulation pull rod 35 is connected with arc-chutes connecting lever 34, Arc-chutes connecting lever 34 is rotatably arranged in above-mentioned support plate 33, rotational plane and the indoor arc extinguishing of arc extinguishing of arc-chutes connecting lever 34 The axis of room moved end pull rod is parallel, while arc-chutes connecting lever 34 coordinates with the transmission of movable end of arc extinguishing chamber pull rod.Simultaneously in breaker axis First connecting rod 36 and the first connecting lever 37 are also connected between 32 and the input shaft of operating mechanism 2, in actual operating process, open circuit The input shaft of device acts, and first connecting rod 36 is driven to move up and down, and then drives the rotation of the first connecting lever 37, and the driving of the first connecting lever 37 is disconnected Three-phase main connecting lever action is driven when road device axis 32 rotates, and then drives the 35 left and right directions movement of major insulation pull rod, major insulation pull rod 35 are coordinated by arc-chutes connecting lever 34 and the transmission of movable end of arc extinguishing chamber pull rod, and then realize the folding at the indoor sound end of arc extinguishing, i.e., Realize the control of breaker unit 3.

For ground unit 4, in the present embodiment, ground unit 4 includes being threaded through along the longitudinal direction under rack 1 The grounding shaft 41 in portion, grounding shaft 41 are located at the lower section of operating mechanism 2, and upper face interval is fixed with three-phase ground knife 42, phase and phase Between connected by earthing bar 43.Ground unit 4 further includes the ground insulation pillar 46 on the right side for being fixed on rack 1 simultaneously, is connect Ground insulation column 46 is also horizontally placed in rack 1, is extended in left-right direction, while being fixed with branch in the right end of ground insulation pillar 46 Support row 45, support arrange and are fixed with ground contact seat 44 on 45, the break-make for being grounded unit 4 are coordinated with corresponding earthing 42, together When be also sequentially connected with second connecting rod 47 and the second connecting lever between the operating shaft and grounding shaft 41 of operating mechanism 2, while connecing Ground spring installation connecting lever is additionally provided in the earth's axis 41, the upper end of ground spring 48 is installed by the upper end of guide rod with ground spring Connecting lever is connected, and the pilot hole that lower end is had strong market potential by one across lower end is fixed in the perpendicular support plate 33 of rack 1.In actual operation In the process, operating shaft control second connecting rod 47 moves up and down, and then drives grounding shaft 41 to rotate by the second connecting lever, grounding shaft 41 It drives earthing 42 to rotate, realizes the division between ground contact seat 44.Meanwhile 45 and above-mentioned breaker unit 3 are arranged in support Support plate 33 on conductive fixed block between be also associated with overlap joint row 6.In other embodiments, support row and conductive fixed block It may be set to be soft row's structure connection.

For isolated location 5, in this embodiment, isolated location 5 include be threaded through along the longitudinal direction in rack 1 every Off-axis 58, axis 58 is isolated and grounding shaft 41 is arranged at the lower section of breaker axis 32, while being horizontally placed on the lower section of pole 31, And isolation axle position, between grounding shaft and breaker axis, setting in this way can ensure the compact type of transmission mechanism, facilitate company Installation is connect, certainly in other embodiments, grounding shaft can also be arranged between breaker axis and isolation axis.

The left end of above-mentioned pole 31 passes through rack 1, the left end of pole 31 to be connected with what left and right extended simultaneously Isolated insulation pillar 51, while insulating contact 57 is equipped on isolated insulation pillar 51, on insulating contact 57 and pole 31 Copper sleeve 311 be fixed together, facilitate the connection between isolated location and breaker unit.Certainly, in other embodiments, The connection structure being fixedly connected with rack can also be set on isolated insulation pillar 51, isolated insulation pillar is threaded through rack On, and pole is fixed on isolated insulation pillar；It can also will be all provided on pole and isolated insulation pillar Connection structure is set to be fixed on the rack.

One end of isolation knife 52 is linked together by contact spring and insulating contact 57 simultaneously, is isolated on axis 58 and is additionally provided with three It is isolated main connecting lever, is connect with isolation knife 52 by isolated insulation pull rod 53.It is located at isolated insulation in the left side of rack 1 simultaneously to draw The arranged beneath of bar 53 has supporting insulator, and the left end of supporting insulator is fixed with isolation touch base, while being set on isolation axis 58 There is spacer spring that connecting lever is installed, the upper end of spacer spring 56 installs connecting lever with spacer spring by the upper end of guide rod and is connected, under End is fixed on by a pilot hole having strong market potential across lower end on 1 side plate of rack.In actual operating process, isolated insulation pull rod 53 pull isolation knife 52 to rotate, and then realize the folding of isolated location 5.

It should be noted that in actual breaker interrupting process, needed between isolated location 5 and ground unit 4 Certain interlocking, in the present embodiment, operating shaft and the transmission of grounding shaft 41 of above-mentioned operating mechanism 2 coordinate, while in rack 1 Back side edge be equipped with drive link 7,7 upper and lower directions of drive link extends, the upper end of drive link 7 by transmission crank arm with axis 58 is isolated Connection, lower end is connect by transmission crank arm with grounding shaft 41.It can be thus achieved in this way while grounding shaft 41 acts, accordingly Isolation axis 58 follows synchronization action.

In the actual use process, when breaker is in gate-dividing state, operation handle can be used in above-mentioned breaker The operating shaft of operating mechanism 2 is controlled, operating shaft drives grounding shaft 41 to rotate by second connecting rod 47, and grounding shaft 41 passes through drive link 7 drive isolation axis 58 to rotate, and isolation axis 58 drives isolation knife 52 to act by corresponding isolated insulation pull rod 53, and then realizes The linkage status that three-phase ground closes, isolation divides；Vice versa, when needing breaker closing, rotates manipulator round about Handle, operating shaft drive grounding shaft 41 to rotate by second connecting rod 47, and grounding shaft 41 drives isolation axis 58 to rotate by drive link, every Off-axis 58 linkage status for driving isolation knife 52 to act, and then realizing three-phase ground point, sum being isolated.In isolated location 5 and ground connection When unit 4 is in corresponding Interlock Status, the input shaft of manually or electrically closing operation, circuit breaker operation mechanism 2 passes through First connecting rod 36 controls breaker axis 32 and rotates, then drives movable end of arc extinguishing chamber fortune by major insulation pull rod 35 and arc-chutes connecting lever 34 It is dynamic, keep arc-chutes moving contact and static contact relatively separately or relatively closed, to realize the divide-shut brake of breaker.

In other embodiments, fixed pole can be vertically arranged on the right side of rack 1；Isolated location 5 and ground connection are single Position between member 4 can be interchanged；Pole, isolated location and ground unit can be arranged at the same side of rack.

Breaker involved by the utility model can be mounted in case change, can be replaced with disconnecting switch, earthing switch With the switchgear of breaker, cost is greatly saved, and so that installation is simple.

In other embodiments, it operates to be driven with isolated location 5 in the operation of structure and coordinate.

In other embodiments, breaker can be arranged in the centre position of rack 1, and isolated location 5 and ground unit 4 divide It is located at the both sides up and down of rack 1.

Claims (8)

1. breaker, including rack, rack is equipped with isolated location, ground unit, breaker unit and operating mechanism, and ground connection is single There is member grounding shaft, isolated location to have an isolation axis, and operating mechanism has and grounding shaft or axis is isolated is driven to coordinate and connect with controlling The operating shaft that ground is cut-off is connected with kinematic link so that grounding shaft is synchronous with axis is isolated dynamic between grounding shaft and isolation axis Make, it is characterised in that：The pole of breaker unit is assemblied in rack along perpendicular to plane extension where the respective side of rack On.

2. breaker according to claim 1, it is characterised in that：Breaker unit, isolated location and ground unit difference It is arranged on the opposite two sides of rack.

3. breaker according to claim 2, it is characterised in that：The opposite both sides for defining rack are left and right sides, described disconnected Road device unit and ground unit are arranged on the right side of rack, and the isolated location is arranged in the left side of rack.

4. breaker according to claim 3, it is characterised in that：Isolated location includes being connected to the left end of pole simultaneously With the isolated insulation pillar of the coaxial extension of pole, the left end of isolated insulation pillar have for it is quiet in pole The insulating contact that end connector is conductively connected, isolated insulation pillar and/or pole are equipped with for being fixedly connected with rack Connection structure.

5. breaker according to claim 4, it is characterised in that：The connection structure is the circumferential direction being arranged in pole The fixation step in outside.

6. according to claim 1 ~ 5 any one of them breaker, it is characterised in that：Every located off-axis in grounding shaft and breaker Between the breaker axis of unit.

7. according to claim 1 ~ 5 any one of them breaker, it is characterised in that：Pole is set backwards to one end of rack It is equipped with support plate, support plate is equipped with the conducting block being electrically connected with the movable end of arc extinguishing chamber in pole, and ground unit includes solid It is scheduled on respective panels ground insulation pillar towards right extension of the edge in rack perpendicular to rack, the right end tool of ground insulation pillar There is support to arrange, ground contact seat is connected on support row, overlap joint row is connected between support row and conducting block.

8. breaker according to claim 7, it is characterised in that：The breaker unit further includes being rotatably arranged on support The connecting lever coordinated on plate and with movable end of arc extinguishing chamber transmission, is connected with insulation and draws between connecting lever and the breaker axis of breaker unit Bar.