CN203859051U - Three-phase directly operated type disconnecting switch - Google Patents
Three-phase directly operated type disconnecting switch Download PDFInfo
- Publication number
- CN203859051U CN203859051U CN201420273722.XU CN201420273722U CN203859051U CN 203859051 U CN203859051 U CN 203859051U CN 201420273722 U CN201420273722 U CN 201420273722U CN 203859051 U CN203859051 U CN 203859051U
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- CN
- China
- Prior art keywords
- insulator
- moving contact
- connecting lever
- isolating switch
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a three-phase directly operated type disconnecting switch. The switch comprises a rack. A slide rail is formed on the rack. The slide rail is sleeved by three insulator sets. Each insulator set comprises an inclined first insulator and an inclined second insulator. The first insulator has a different inclined direction from the second insulator. The top end of the first insulator is provided with a first insulator support. The top end of the second insulator is provided with a second insulator support. The first insulator support is provided with a static contact. The second insulator support is provided with a slide groove. The slide groove is provided with a roller type moving contact. The moving contact is fixed to a cylindrical conductive rod that enables straight motion of approaching or departing from the static contact when the moving contact rolls. The moving contact is further provided with an insulation connecting lever that drives the moving contact to roll.
Description
Technical field
The utility model relates to a kind of isolating switch, particularly relates to a kind of three-phase direct-operated isolating switch.
Background technology
Isolating switch (disconnector),, in the time dividing position, the insulation distance that having between contact conforms with the regulations requires and significantly disconnection indicate; In the time that co-bit is put, can carry electric current under normal loop condition and the switchgear of for example, electric current under exceptional condition (short circuit) at the appointed time.（IEV441-14-05)
Our said isolating switch (being commonly called as " disconnecting link "), generally refer to high voltage isolator, be that rated voltage is at 1kV and above isolating switch thereof, conventionally referred to as isolating switch, be in high-voltage switch electric appliance, to use maximum a kind of electrical equipment, the principles and structure of itself is fairly simple, but because use amount is large, functional reliability requires high, and the impact of design, foundation and safe operation on electric substation, power plant is all larger.The main feature of isolating switch is without arc extinguishing ability, can only in the situation that there is no load current, divide, close circuit.Isolating switch is for each step voltage, connects or makes circuit or equipment and isolated from power as changing circuit, and its ability that do not stop, operate after can only be first will circuit disconnecting with miscellaneous equipment again.Generally the interlock of misoperation when preventing switch band load, needs pin to prevent cut-off switch under the magneticaction of large fault sometimes.
In prior art, as Chinese utility model patent prospectus 201320647477.X
In a kind of load-break switch shifting fork device is disclosed, this device comprises pressing plate, the stage clip bolt assembly on the rotation axis that is separately fixed at vacuum interrupter, the upper-end part of driving of described pressing plate is ganoid ∠ shape inclined-plane.Effect of the present utility model is that this isolating switch shifting fork device is by the inclined-plane of this pressing plate, can make the accurate machinery-free of conduction curved boom energy of load-break switch reset to interferingly the position of regulation, thereby realize the accurately closed object of safety of outdoor load isolating switch, and simple in structure, easy to operate, machinery-free is interfered failure risk.
But, isolating switch in above-mentioned patent, its conducting rod is combined floodgate and the separating brake that the mode by rotating realizes isolating switch, guidance quality deficiency likely produces deviation after repeatedly rotating, and occurs the situation of loose contact while causing closing a floodgate, in addition, conducting rod adopts combined floodgate/separating brake mode of rotating to take a large amount of vertical plane spaces, and because isolating switch is by being contained in switch cabinet body, this also just causes having taken larger cabinet space.
Utility model content
Technical problem to be solved in the utility model is to provide one to take that vertical plane space is little, conducting rod guidance quality is good, patch three-phase direct-operated isolating switch accurately and reliably for the above-mentioned state of the art.
For achieving the above object, the utility model provides following technical scheme:
A kind of three-phase direct-operated isolating switch, include frame, described frame is the steel plate of level, described steel plate two ends are all formed with bending part, described bending part is by the bending in the middle of described steel plate of described steel plate end, described steel plate is formed with slide rail between two described bending parts, on described slide rail, be arranged with three groups of insulation subgroups, each group insulation subgroup includes the first insulator and second insulator of inclination, and the incline direction of described the first insulator and described the second insulator is contrary, wherein, described the first insulator top is provided with the first insulating support, described the second insulator top is provided with the second insulating support, on described the first insulating support, fixed contact is housed, be provided with chute at described the second insulating support, the moving contact of roller type is housed in described chute, on described moving contact, be fixed with the conducting rod of circular tube shaped, described conducting rod can in the time that described moving contact rolls, do with respect to described fixed contact near or away from rectilinear motion, on described moving contact, be also provided with the insulation connecting lever that can drive described moving contact to roll.
As the improvement of above-mentioned three-phase direct-operated isolating switch in the utility model, on described fixed contact, be provided with the slot plugging for described conducting rod.
As the further improvement of above-mentioned three-phase direct-operated isolating switch in the utility model, in described slot, be provided with conductive plate, plug in described slot time at described conducting rod, jointly form a galvanic circle by described conductive plate, conducting rod, moving contact and described fixed contact.
As above-mentioned three-phase direct-operated isolating switch in the utility model preferably, described insulation connecting lever and described moving contact are one-body molded.
As the concrete technical scheme of above-mentioned three-phase direct-operated isolating switch in the utility model, on described insulation connecting lever, be provided with rotating shaft, described rotating shaft one end is fixed on described insulation connecting lever, and the other end is fixed on described moving contact.
As the improvement of above-mentioned three-phase direct-operated isolating switch in the utility model, on described insulation connecting lever and described moving contact, offer respectively and the screwed hole of described rotating shaft size adaptation, described rotating shaft is threaded connection and is fixed on described insulation connecting lever and described moving contact.
Compared with prior art, the utility model has the advantage of: conducting rod adopts round copper pipe and is rectilinear motion, thereby improve rigidity and the guidance quality of conducting rod, ensured the reliability that patches of switch, significantly improved through-current capability and the dynamic and thermal stability performance of isolating switch.In addition, isolating switch adopts straight line back and forth movement, can save vertical plane space, has compressed the overall dimension of switch cabinet.
Brief description of the drawings
Fig. 1 is the structural representation of three-phase direct-operated isolating switch in the utility model embodiment;
Fig. 2 be embodiment illustrated in fig. 1 in the structural representation of the first insulator;
Fig. 3 is the structural representation of the second insulator in embodiment of the utility model;
Fig. 4 is the structural representation of the second insulator in another embodiment of the utility model.
Reference numeral:
1, frame; 11, bending part; 12, slide rail; 2, insulation subgroup; 21, the first insulator; 211, the first insulating support; 22, the second insulator; 3, the second insulating support; 31, chute; 4, fixed contact; 41, slot; 411, conductive plate; 5, moving contact; 51, the second screwed hole; 6, conducting rod; 7, insulation connecting lever; 71, rotating shaft; 72, the first screwed hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1-Figure 3, the present embodiment is a kind of three-phase direct-operated isolating switch, include frame 1, described frame is the steel plate of level, described steel plate two ends are all formed with bending part 11, described bending part 11 is by the bending in the middle of described steel plate of described steel plate end, described steel plate is formed with slide rail 12 between two described bending parts, on described slide rail, be arranged with three groups of insulation subgroups 2, above-mentioned insulation subgroup can be slided on slide rail, and two above-mentioned bending parts have played spacing effect to the slip of subgroup on slide rail of insulating.
Each group insulation subgroup includes the first insulator 21 and second insulator 22 of inclination,
The first described insulator 21 and the second insulator 22 are all to form by folding the insulator parcel forming, and the incline direction of described the first insulator 21 and described the second insulator 22 is contrary, be that above-mentioned the first insulator 21 and one end of the second insulator 22 are to be fixed on the surface of steel plate, and both to be fixed on an end position of surface of steel plate overlapped.The other end of described the first insulator 21 and the second insulator 22, is looked over towards two contrary directional divergences on the whole by described surface of steel plate, and described the first insulator 21 and the second insulator 22 are that mirror image is symmetrically arranged.
Wherein, the first insulating support 211 is installed on the top of described the first insulator 21, the second insulating support 3 is installed on the top of described the second insulator 22, on described the first insulating support, fixed contact 4 is housed, be provided with chute 31 at described the second insulating support, the moving contact 5 of roller type is housed in described chute, this moving contact 5 can roll under the effect of extraneous actuating force in above-mentioned chute 31, and above-mentioned chute is linear chute 31, can play to the rolling of moving contact the effect of a guiding.
Moving contact 5 offers an installing hole (not shown), is fixed with the conducting rod 6 of circular tube shaped in above-mentioned installing hole, and this conducting rod adopts copper to make material as it.
Described conducting rod 6 can in the time that described moving contact 5 rolls in chute 31, do with respect to described fixed contact near or away from rectilinear motion, when described moving contact in chute in the time that the direction of described fixed contact 4 is rolled, described conducting rod 6 is also along with described moving contact 5 is close towards described fixed contact.Otherwise, when described moving contact 5 in chute 31 in the time that direction away from fixed contact 4 is rolled, described conducting rod 6 is also along with described moving contact 5 is away from described fixed contact.
On described moving contact 5, be also provided with the insulation connecting lever 7 that can drive described moving contact 5 to roll.It can be both manual that this insulation connecting lever 7 drives the mode that moving contact 5 rolls, being user rolls moving contact 5 by the insulate mode of connecting lever 7 of manual rotation, this type of drive can be also electronic, being about to insulation connecting lever 7 is connected on the output shaft of motor, by the swing of driven by motor insulation connecting lever 7, and then drive moving contact 5 to roll in chute 31.This
On described fixed contact 4, be provided with the slot 41 plugging for described conducting rod 6.
In described slot 41, be provided with conductive plate 411, plug in described slot time at described conducting rod, jointly form a galvanic circle by described conductive plate 411, conducting rod 6, moving contact 5 with described fixed contact 4.
For the fixed form between insulation connecting lever 7 and moving contact, in fact can there be multiple choices according to need of work, as shown in Figure 3, in the present embodiment, in order to reduce the friction between described insulation connecting lever and described moving contact, described insulation connecting lever 7 is integrated with described moving contact 5.
As shown in Figure 4, in another embodiment of the present utility model, consider and sometimes need moving contact 5 or insulation connecting lever 7 to change, described insulation connecting lever 7 is to be removably connected on moving contact.Concrete, on described insulation connecting lever 7, be provided with rotating shaft 71, on described insulation connecting lever and described moving contact, offer respectively the first screwed hole 72 and the second screwed hole 51 with described rotating shaft size adaptation, described rotating shaft one end is threaded connection and is fixed on described insulation connecting lever, the other end is threaded connection and is fixed on described moving contact, so just can easily insulation connecting lever be pulled down from moving contact.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a three-phase direct-operated isolating switch, include frame, described frame is the steel plate of level, described steel plate two ends are all formed with bending part, described bending part is by the bending in the middle of described steel plate of described steel plate end, described steel plate is formed with slide rail between two described bending parts, on described slide rail, be arranged with three groups of insulation subgroups, each group insulation subgroup includes the first insulator and second insulator of inclination, and the incline direction of described the first insulator and described the second insulator is contrary, it is characterized in that: described the first insulator top is provided with the first insulating support, described the second insulator top is provided with the second insulating support, on described the first insulating support, fixed contact is housed, be provided with chute at described the second insulating support, the moving contact of roller type is housed in described chute, on described moving contact, be fixed with the conducting rod of circular tube shaped, described conducting rod can in the time that described moving contact rolls, do with respect to described fixed contact near or away from rectilinear motion, on described moving contact, be also provided with the insulation connecting lever that can drive described moving contact to roll.
2. three-phase direct-operated isolating switch according to claim 1, is characterized in that: on described fixed contact, be provided with the slot plugging for described conducting rod.
3. three-phase direct-operated isolating switch according to claim 2, it is characterized in that: in described slot, be provided with conductive plate, plug in described slot time at described conducting rod, jointly form a galvanic circle by described conductive plate, conducting rod, moving contact and described fixed contact.
4. three-phase direct-operated isolating switch according to claim 1, is characterized in that: described insulation connecting lever and described moving contact are one-body molded.
5. three-phase direct-operated isolating switch according to claim 1, is characterized in that: on described insulation connecting lever, be provided with rotating shaft, described rotating shaft one end is fixed on described insulation connecting lever, and the other end is fixed on described moving contact.
6. three-phase direct-operated isolating switch according to claim 5, it is characterized in that: on described insulation connecting lever and described moving contact, offer respectively and the screwed hole of described rotating shaft size adaptation, described rotating shaft is threaded connection and is fixed on described insulation connecting lever and described moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273722.XU CN203859051U (en) | 2014-05-24 | 2014-05-24 | Three-phase directly operated type disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273722.XU CN203859051U (en) | 2014-05-24 | 2014-05-24 | Three-phase directly operated type disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859051U true CN203859051U (en) | 2014-10-01 |
Family
ID=51608893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420273722.XU Expired - Fee Related CN203859051U (en) | 2014-05-24 | 2014-05-24 | Three-phase directly operated type disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609358A (en) * | 2016-02-16 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Disconnecting switch |
| CN107293439B (en) * | 2016-04-05 | 2020-07-14 | 通用电器技术有限公司 | Support structure for contact of high-voltage isolating switch |
-
2014
- 2014-05-24 CN CN201420273722.XU patent/CN203859051U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609358A (en) * | 2016-02-16 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Disconnecting switch |
| CN107293439B (en) * | 2016-04-05 | 2020-07-14 | 通用电器技术有限公司 | Support structure for contact of high-voltage isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20160524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |