CN203799946U - Three-position disconnector and solid insulation cabinet - Google Patents
Three-position disconnector and solid insulation cabinet Download PDFInfo
- Publication number
- CN203799946U CN203799946U CN201420120635.0U CN201420120635U CN203799946U CN 203799946 U CN203799946 U CN 203799946U CN 201420120635 U CN201420120635 U CN 201420120635U CN 203799946 U CN203799946 U CN 203799946U
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- tri
- isolation switch
- knife plate
- static contact
- station isolating
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- 238000009413 insulation Methods 0.000 title claims abstract description 38
- 239000007787 solid Substances 0.000 title claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 60
- 230000003068 static effect Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a three-position disconnector and a solid insulation cabinet. The three-position disconnector comprises an upper static contact, an isolation switch assembly, a lower static contact, a lower lead-out terminal, a grounding static contact, a lower insulating cover, a grounding lead-out terminal, a sealing ring, an upper insulating cover, an upper lead-out terminal, and an insulating square shaft. The upper insulating cover and the lower insulating cover are connected through the sealing ring, forming an air chamber. The sealed air chamber can be filled with dry air. The insulating switch assembly is rotated with the rotation of the insulating square shaft so as to be switched to a connection position, a disconnection position and a grounding connection position. The three-position disconnector provided by the utility model is simple in structure, low in component quantity, small in space occupation and low in cost. Besides, the three-position disconnector is simple in operation, and is capable of performing reliable isolation on the circuit during the maintenance and repair of power distribution lines, thereby ensuring the personal safety of maintenance personnel.
Description
Technical field
The utility model relates to solid insulation cabinet technology, relates in particular to a kind of tri-station isolating switch and solid insulation cabinet.
Background technology
Solid insulation cabinet as in electrical power distribution system, electric power is carried to the control device open and close, has conform wide, environmental protection, compact conformation, the advantage such as non-maintaining.When realizing the inspection and maintenance of distribution line to the reliable isolation of circuit to ensure attendant's personal safety, need to isolating switch be set in solid insulation cabinet so that circuit is isolated.In prior art, generally adopt direct-operated isolating switch.Yet, direct-operated isolating switch complex structure, number of spare parts is many, and the space taking is larger.
Utility model content
The utility model provides a kind of tri-station isolating switch and solid insulation cabinet, and this tri-station isolating switch is simple in structure, number of spare parts is few and the space that takies is smaller.
First aspect, the utility model provides a kind of tri-station isolating switch, comprise: upper static contact (1), 3 isolation switch assembling (2), lower fixed contact (3), lower wire end (4), grounding static contact (5), lower insulating cover (6), ground connection exit (7), sealing ring (8), upper insulating cover (9), upper leading-out terminal (10) and insulation square shafts (11), wherein
Described upper insulating cover (9) connects and composes air chamber (18) with described lower insulating cover (6) by described sealing ring (8), described upper leading-out terminal (10) is arranged on described upper insulating cover (9), described lower wire end (4) is arranged on described lower insulating cover (6), described upper static contact (1) is connected with described upper leading-out terminal (10), and described lower fixed contact (3) is connected with described lower wire end (4); Described in each, isolation switch assembling (2) is clamped on described lower fixed contact (3), described in each, isolation switch assembling (2) has a hole, and by this hole and vertical connection of described insulation square shaft (11), described grounding static contact (5) is connected by soft arranging wire with described ground connection exit (7).
In the possible implementation of the first aspect first, described isolation switch assembling (2) comprising: left knife plate (12), two spring structure posts (13), back shaft (14), extension spring (15), right knife plate (16) and straight pin (17), wherein,
Described left knife plate (12) is oppositely arranged with described right knife plate (16), spring structure post (13) described in each, described back shaft (14) is vertically set on respectively between described left knife plate (12) and described right knife plate (16), described in each, spring structure post (13) is provided with described extension spring (15) with the place that described right knife plate (16) intersects vertically, described in each, spring structure post (13) is fixed on described right knife plate (16) by described straight pin (17), spring structure post (13) near the hole in described isolation switch assembling (2) is clamped on described lower fixed contact (3) by described extension spring (15), away from the spring structure post (13) in the hole in described isolation switch assembling (2) and described isolation switch, assemble (2) and synchronize rotation.
In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second aspect first, described tri-station isolating switch has a closing position, an open position and a contact of earth position.
In conjunction with the possible implementation of the second of first aspect, in the third the possible implementation aspect first, under described closing position, the pulling force that assembles extension spring (15) generation in the hole on (2) away from described isolation switch is clamped on described upper static contact (1) described left knife plate (12) and described right knife plate (16).
In conjunction with the possible implementation of the second of first aspect, in the 4th kind of possible implementation aspect first, under described open position, described isolation switch assembling (2) is not all connected with described upper static contact (1) and described grounding static contact (5).
In conjunction with the possible implementation of the second of first aspect, in the 5th kind of possible implementation aspect first, under described contact of earth position, the pulling force that assembles extension spring (15) generation in the hole on (2) away from described isolation switch is clamped on described grounding static contact (5) described left knife plate (12) and described right knife plate (16).
In conjunction with any possible implementation in five kinds of the second to the of first aspect, in the 6th kind of possible implementation aspect first, described isolation switch assembling (2) under described open position, forms 80 ° of angles with the described isolation switch assembling (2) under described closing position;
Described isolation switch assembling (2) under described open position, forms 80 ° of angles with the described isolation switch assembling (2) under described contact of earth position.
Second aspect, the utility model provides a kind of solid insulation cabinet, comprises the tri-station isolating switch that in six kinds of the first to the of as above first aspect, first aspect, any possible mode realizes.
The 3rd aspect, the utility model provides a kind of solid insulation cabinet, comprises as above the 6th kind of tri-station isolating switch that mode realizes of first aspect.
The tri-station isolating switch that the embodiment of the present invention provides and solid insulation cabinet, this tri-station isolating switch comprises upper static contact, isolation switch assembling, lower fixed contact, lower wire end, grounding static contact, lower insulating cover, ground connection exit, sealing ring, upper insulating cover, upper leading-out terminal and insulation square shaft.Wherein, upper insulating cover and lower insulating cover connect and compose air chamber by sealing ring, in sealed air chamber, can be filled with dry air, rotate, thereby realize closing position, open position and contact of earth position by the rotation drive isolation switch assembling of insulation square shaft.This tri-station isolating switch, simple in structure, number of spare parts is few and the space that takies is smaller, cost is low.In addition, this tri-station isolating switch is simple to operate, when the inspection and maintenance circuit of distribution line, can reliably isolate circuit, ensures attendant's personal safety.
Accompanying drawing explanation
The structural representation of the tri-station isolating switch that Fig. 1 provides for the utility model;
The structural representation of the isolation switch assembling of the tri-station isolating switch that Fig. 2 provides for the utility model;
The state diagram of the tri-station isolating switch that Fig. 3 provides for the utility model in closing position;
The state diagram of the tri-station isolating switch that Fig. 4 provides for the utility model in open position;
The state diagram of the tri-station isolating switch that Fig. 5 provides for the utility model in contact of earth position.
Embodiment
The structural representation of the tri-station isolating switch that Fig. 1 provides for the utility model.As described in Figure 1, the tri-station isolating switch 100 that the utility model provides comprises: upper static contact 1, 3 isolation switch assemblings 2, lower fixed contact 3, lower wire end 4, grounding static contact 5, lower insulating cover 6, ground connection exit 7, sealing ring 8, upper insulating cover 9, upper leading-out terminal 10 and insulation square shaft 11, wherein, upper insulating cover 9 connects and composes air chamber 18 with lower insulating cover 6 by sealing ring 8, sealed air chamber 18 is interior can be filled with dry air, upper leading-out terminal 10 is arranged on insulating cover 9, lower wire end 4 is arranged on lower insulating cover 6, upper static contact 1 is connected with upper leading-out terminal 10, upper static contact 1 can be communicated with main busbar (not shown) or main switch (not shown) by upper leading-out terminal 10, lower fixed contact 3 is connected with lower wire end 4, each isolation switch assembling 2 is clamped on lower fixed contact 3, and each isolation switch assembling 2 has a hole, and by this hole with insulate that square shaft 11 is vertical to be connected, grounding static contact 5 is connected by soft row with ground connection exit 7.
As shown in Figure 1,3 cover isolation switch assemblings 2 are housed on the axis direction of insulation square shaft 11, be respectively A, B, C tri-phase places, spaced apart is 130mm, each isolation switch assembling 2, by the hole on it, coordinates with insulation square shaft 11, and drives isolation switch assembling 2 to rotate by the rotation of insulation square shaft 11, thereby realize three position functions of three-station 100 outs of phase, i.e. closing position, open position and contact of earth position; Lower fixed contact 3 is connected with lower wire end 4, realizes the derivation of the electric current of three-station 100; Grounding static contact 5 is connected by soft row with ground connection exit 7, the connection being grounded.
The tri-station isolating switch that the utility model provides, rotates by the rotation drive isolation switch assembling of insulation square shaft, thereby realizes closing position, open position and contact of earth position.For each phase place, the insulation square shaft of this tri-station isolating switch only need drive corresponding isolation switch assembling to rotate, realize the synchronous of three-phase, make lower fixed contact 3 by disconnecting link, assemble 2 with lower wire end 4 and be communicated with upper static contact 1 and upper leading-out terminal 10 or grounding static contact 5 and ground connection exit 7.The number of spare parts relating to while realizing diverse location is few, and this tri-station isolating switch space simple in structure, that take is smaller, and cost is low.In addition, this tri-station isolating switch is simple to operate, when the inspection and maintenance circuit of distribution line, can reliably isolate circuit, ensures attendant's personal safety.
The structural representation of the isolation switch assembling of the tri-station isolating switch that Fig. 2 provides for the utility model.As shown in Figure 2, optionally, each isolation switch assembling 2 of tri-station isolating switch 100 shown in above-mentioned Fig. 1 comprises: left knife plate 12, two spring structure posts 13, back shaft 14, extension spring 15, right knife plate 16 and straight pin 17, wherein, left knife plate 12 is oppositely arranged with right knife plate 16, each spring structure post 13, back shaft 14 is vertically set on respectively between left knife plate 12 and right knife plate 16, each spring structure post 13 is provided with extension spring 15 with the place that right knife plate 16 intersects vertically, each spring structure post 13 is fixed on right knife plate 16 by straight pin 17, spring structure post 13 near the hole in isolation switch assembling 2 is clamped on lower fixed contact 3 by extension spring 15, away from the spring structure post 13 in the hole in isolation switch assembling 2 and isolation switch, assemble 2 and synchronize rotation.
Simultaneously known in conjunction with Fig. 1,3 cover isolation switch assemblings 2 are housed on the axis direction of insulation square shaft, be respectively A, B, C three-phase, spaced apart is 130mm, and as seen from Figure 2, isolation switch assembly structure is simple and practical, number of spare parts is few, cost is not high, and mounting process is simple, and tri-station isolating switch has ground connection making capability.Below, on the basis of above-mentioned Fig. 1 and Fig. 2, the operation principle of the tri-station isolating switch that the utility model is provided is elaborated.Concrete, can be referring to Fig. 3～Fig. 5.
The state diagram of the tri-station isolating switch that Fig. 3 provides for the utility model in closing position.As shown in Figure 3, can pass through disc spring mechanism (not shown), for example, the disc spring mechanism of FLN48-12 type on-load switch is as the power source of insulation square shaft 11, drive insulation square shaft 11 to rotate, and then drive isolation switch assembling 2 to rotate, make by extension spring 15, left knife plate 12 to be clamped on upper static contact 1 away from the spring structure post 13 in the hole in isolation switch assembling 2 with right knife plate 16.Now, busbar electric current is introduced from upper leading-out terminal 10, through upper static contact 1, isolation switch assembling 2, lower fixed contact 3, lower wire end 4, flows out, and receives outlet casing tube, realizes the combined floodgate of three-station.
Optionally, insulation square shaft 11 rotates and rotates counterclockwise 80 ° from closing position, makes tri-station isolating switch in open position.
The state diagram of the tri-station isolating switch that Fig. 4 provides for the utility model in open position.As shown in Figure 3, can pass through disc spring mechanism (not shown), for example, the disc spring mechanism of FLN48-12 type on-load switch is as the power source of insulation square shaft 11, drive insulation square shaft 11 to rotate, and then drive isolation switch assembling 2 to rotate, for example, insulation square shaft 11 drives isolation switch assembling 2 to rotate counterclockwise 80 ° from closing position; Or insulation square shaft 11 drives isolation switch assembling 2 to clockwise rotate 80 ° from contact of earth position; Or insulation square shaft 11 drives isolation switch assembling 2 to rotate corresponding angle from arbitrary position, isolation switch assembling 2 is not all connected with upper static contact 1 and grounding static contact 5.Now, realize the separating brake of three-station.
The state diagram of the tri-station isolating switch that Fig. 5 provides for the utility model in contact of earth position.As shown in Figure 5, can pass through disc spring mechanism (not shown), for example, the disc spring mechanism of FLN48-12 type on-load switch is as the power source of insulation square shaft 11, drive insulation square shaft 11 to rotate, and then drive isolation switch assembling 2 to rotate, make by extension spring 15, left knife plate 12 to be clamped on grounding static contact 5 away from the spring structure post 13 in the hole in isolation switch assembling 2 with right knife plate 16.Now, the electric current of introducing from busbar electric current through leading-out terminal 10 introduce, during through upper static contact 1, disconnect, and the cable of cable vault is after outlet casing tube, via lower wire end 4, lower fixed contact 3, isolation switch assembling 2, grounding static contact 5, soft row, ground connection exit 7, be communicated with solid insulation cabinet frame ground, realize cable grounding function, thereby realize the contact of earth of three-station.
In addition, on the basis of the tri-station isolating switch providing at the utility model, the utility model also provides a kind of solid insulation cabinet, and it comprises as above arbitrary described tri-station isolating switch, and specific works principle repeats no more herein.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a tri-station isolating switch, it is characterized in that, comprise: upper static contact (1), 3 isolation switch assembling (2), lower fixed contact (3), lower wire end (4), grounding static contact (5), lower insulating cover (6), ground connection exit (7), sealing ring (8), upper insulating cover (9), upper leading-out terminal (10) and insulation square shafts (11), wherein
Described upper insulating cover (9) connects and composes air chamber (18) with described lower insulating cover (6) by described sealing ring (8), described upper leading-out terminal (10) is arranged on described upper insulating cover (9), described lower wire end (4) is arranged on described lower insulating cover (6), described upper static contact (1) is connected with described upper leading-out terminal (10), and described lower fixed contact (3) is connected with described lower wire end (4); Described in each, isolation switch assembling (2) is clamped on described lower fixed contact (3), described in each, isolation switch assembling (2) has a hole, and by this hole and vertical connection of described insulation square shaft (11), described grounding static contact (5) is connected by soft row with described ground connection exit (7).
2. tri-station isolating switch according to claim 1, it is characterized in that, described isolation switch assembling (2) comprising: left knife plate (12), two spring structure posts (13), back shaft (14), extension spring (15), right knife plate (16) and straight pin (17), wherein
Described left knife plate (12) is oppositely arranged with described right knife plate (16), spring structure post (13) described in each, described back shaft (14) is vertically set on respectively between described left knife plate (12) and described right knife plate (16), described in each, spring structure post (13) is provided with described extension spring (15) with the place that described right knife plate (16) intersects vertically, described in each, spring structure post (13) is fixed on described right knife plate (16) by described straight pin (17), spring structure post (13) near the hole in described isolation switch assembling (2) is clamped on described lower fixed contact (3) by described extension spring (15), away from the spring structure post (13) in the hole in described isolation switch assembling (2) and described isolation switch, assemble (2) and synchronize rotation.
3. tri-station isolating switch according to claim 2, is characterized in that,
Described tri-station isolating switch has a closing position, an open position and a contact of earth position.
4. tri-station isolating switch according to claim 3, is characterized in that,
Under described closing position, the pulling force that assembles extension spring (15) generation in the hole on (2) away from described isolation switch is clamped on described upper static contact (1) described left knife plate (12) and described right knife plate (16).
5. tri-station isolating switch according to claim 3, is characterized in that,
Under described open position, described isolation switch assembling (2) is not all connected with described upper static contact (1) and described grounding static contact (5).
6. tri-station isolating switch according to claim 3, is characterized in that,
Under described contact of earth position, the pulling force that assembles extension spring (15) generation in the hole on (2) away from described isolation switch is clamped on described grounding static contact (5) described left knife plate (12) and described right knife plate (16).
7. according to the tri-station isolating switch described in claim 3～6 any one, it is characterized in that,
Described isolation switch assembling (2) under described open position, forms 80 ° of angles with the described isolation switch assembling (2) under described closing position;
Described isolation switch assembling (2) under described open position, forms 80 ° of angles with the described isolation switch assembling (2) under described contact of earth position.
8. a solid insulation cabinet, is characterized in that, comprises the tri-station isolating switch as described in claim 1～6 any one.
9. a solid insulation cabinet, is characterized in that, comprises tri-station isolating switch as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420120635.0U CN203799946U (en) | 2014-03-17 | 2014-03-17 | Three-position disconnector and solid insulation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420120635.0U CN203799946U (en) | 2014-03-17 | 2014-03-17 | Three-position disconnector and solid insulation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799946U true CN203799946U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420120635.0U Expired - Fee Related CN203799946U (en) | 2014-03-17 | 2014-03-17 | Three-position disconnector and solid insulation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799946U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835677A (en) * | 2015-04-28 | 2015-08-12 | 陈宏� | Vacuum rotary three-position switch tube |
| CN106786005A (en) * | 2016-11-14 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of high-tension switch cabinet |
| CN108878206A (en) * | 2018-07-24 | 2018-11-23 | 青岛特锐德电气股份有限公司 | Disconnecting switch |
| CN112435876A (en) * | 2020-11-26 | 2021-03-02 | 海南电网有限责任公司三亚供电局 | Three-position switch structure for comprehensive cabinet |
-
2014
- 2014-03-17 CN CN201420120635.0U patent/CN203799946U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835677A (en) * | 2015-04-28 | 2015-08-12 | 陈宏� | Vacuum rotary three-position switch tube |
| CN106786005A (en) * | 2016-11-14 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of high-tension switch cabinet |
| CN108878206A (en) * | 2018-07-24 | 2018-11-23 | 青岛特锐德电气股份有限公司 | Disconnecting switch |
| CN112435876A (en) * | 2020-11-26 | 2021-03-02 | 海南电网有限责任公司三亚供电局 | Three-position switch structure for comprehensive cabinet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |