CN102255257B - Circuit breaker/load switch with isolating distance - Google Patents
Circuit breaker/load switch with isolating distance Download PDFInfo
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- CN102255257B CN102255257B CN201110153705.3A CN201110153705A CN102255257B CN 102255257 B CN102255257 B CN 102255257B CN 201110153705 A CN201110153705 A CN 201110153705A CN 102255257 B CN102255257 B CN 102255257B
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- control device
- moving contact
- arc control
- fixed contact
- circuit breaker
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Abstract
The invention discloses a circuit breaker/load switch with an isolating distance. The circuit breaker/load switch comprises a frame. A pair of fixed contacts arranged on different sides is arranged in the frame. A dual-moving contact arc extinguishing chamber is formed in a rotating rack between the fixed contacts. The rotating rack is arranged in the frame by a rotating shaft. The dual-moving contact arc extinguishing chamber can rotate about the rotating shaft along with the rotating rack. A pair of conducting rods is arranged in the dual-moving contact arc extinguishing chamber. The head parts of the conducting rods are opposite, and the tail parts of the conducting rods are extended out of the two ends of the dual-moving contact arc extinguishing chamber respectively. The conducting rods can perform linear reciprocating motion in the dual-moving contact arc extinguishing chamber. The tail part of each conducting rod is connected with a moving contact which is clamped on the fixed contact along with the rotation of the rotating rack. The circuit breaker/load switch has a compact structure, occupied a small space, and can avoid misoperation between the circuit breaker and an isolating switch, reduce the insulation requirements of the arc extinguishing chamber, decrease opening/closing speed and optimize the distribution of contact pressure in closing.
Description
Technical field
The present invention relates to the switching device for medium voltage switchgear equipment, particularly relate to a kind of circuit breaker/load switch with isolation fracture.
Background technology
In existing medium voltage switchgear equipment, circuit breaker or on-load switch and isolating switch be all separate, mutually independently.Such structure is convenient to overhaul respectively, and these two parts parts also can carry out modular production and assembling simultaneously.
This circuit breaker or on-load switch and isolating switch difference be structure independently, though very ripe technically, there is following problem,
1. circuit breaker (or on-load switch) is independent respectively with isolating switch, can increase space, in today of land resource growing tension, the user is in the urgent need to improving the space availability ratio of switchgear, and wider higher switchgear size is difficult to meet user's demand in this respect gradually;
2., there is an operating sequence problem in circuit breaker and isolating switch separate operation, needs special interlock to be protected, and in compact switchgear, occupied certain space; This structure also has certain requirement to operating personnel's technical merit simultaneously, because human factor causes misoperation, unnecessary quality accident occurs in the time of causing the switchgear operation.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of circuit breaker/load switch with isolation fracture, its compact conformation, institute takes up space little, can not cause circuit breaker and isolating switch between misoperation, reduce the insulating requirements of arc control device, reduce on/off switch speed, optimize the contact pressure distributed while closing a floodgate.
The present invention solves above-mentioned technical problem by following technical proposals,
A kind of circuit breaker/load switch with isolation fracture, comprise a framework, the fixed contact that has a pair of heteropleural to arrange in described framework, be provided with the double motion head arc control device between fixed contact, the double motion head arc control device are arranged in swivel mount, swivel mount is arranged in framework by rotating shaft, the double motion head arc control device can rotate around the axis with swivel mount, be provided with the pair of conductive bar in the double motion head arc control device, the head of conducting rod is relative, the afterbody of conducting rod stretches out respectively the two ends of double motion head arc control device, conducting rod can be done straight reciprocating motion in the double motion head arc control device, each conducting rod afterbody is connected with moving contact, moving contact is along with the rotation of swivel mount, be connected on fixed contact.
Further, be provided with draw-in groove on described fixed contact, be provided with pin on moving contact, during combined floodgate, swivel mount rotates, and drives moving contact and first contacts with fixed contact, realize the closure of isolation fracture, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, the pair of conductive bar contact in final double motion head arc control device, realize closing a floodgate;
During separating brake, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, the conducting rod in the double motion head arc control device first separates, and reaches and necessarily opens distance, and arc control device divide has no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
Further, described fixed contact is arranged in framework by supporting seat.
Positive progressive effect of the present invention is,
On-load switch or circuit breaker and isolating switch is integrated 1., reduced space;
2. naturally produce in operation the order of operation of regulation, during separating brake, first separate the arc control device fracture, then divide the isolation fracture, during combined floodgate, first close isolation fracture, then close the arc control device fracture, guaranteed the correctness of operating sequence, without additional interlock;
3. utilize two isolation fractures, make isolation fracture bear the fracture insulation level, reduced the requirement to insulation level between the arc control device fracture;
4. adopt two cephalomotor modes, when guaranteeing that arc control device divide sum velocity, can reduce the point-to-point speed of one-sided moving contact and conducting rod, thereby reduce the rotary speed of whole switching device;
5. adopt the double end motion to add the mode of rotation, can be delivered on the supporting seat of fixed contact by the pressure between two conducting rods when closing a floodgate, rather than bear on swivel mount, reduce the stressed of swivel mount.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of circuit breaker/load switch with isolation fracture of proposing of the present invention;
Fig. 2 is the cutaway view of double motion head arc control device;
Fig. 3 is the structural representation of fixed contact.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.As Fig. 1, shown in Fig. 2, a kind of circuit breaker/load switch with isolation fracture that the present invention proposes, comprise framework 100, the fixed contact 310 and the fixed contact 320 that in described framework 100, have heteropleural to arrange, be provided with double motion head arc control device 200 between fixed contact, the double motion head arc control device are arranged in swivel mount 201, swivel mount 201 is arranged in framework 100 by rotating shaft, double motion head arc control device 200 can rotate around the axis with swivel mount 201, be provided with conducting rod 210 and conducting rod 220 in double motion head arc control device 200, the head of conducting rod is relative, the afterbody of conducting rod stretches out respectively the two ends of double motion head arc control device 200, conducting rod can be done straight reciprocating motion in the double motion head arc control device, conducting rod 210 afterbodys are connected with moving contact 211, moving contact 211 is along with the rotation of swivel mount, be connected on fixed contact 310, conducting rod 220 afterbodys are connected with moving contact 221, moving contact 221 is along with the rotation of swivel mount, be connected on fixed contact 320.
Concrete, be provided with draw-in groove 311 on fixed contact 310, be provided with pin 2111 on moving contact 211, be provided with draw-in groove 321 on fixed contact 320, be provided with pin 2211 on moving contact 221, during combined floodgate, swivel mount rotates, and drives moving contact and first contacts with fixed contact, realize the closure of isolation fracture, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, the pair of conductive bar contact in final double motion head arc control device, realize closing a floodgate;
During separating brake, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, the conducting rod in the double motion head arc control device first separates, and reaches and necessarily opens distance, and arc control device divide has no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
Fixed contact 310 is arranged in framework 100 by supporting seat 312, and fixed contact 320 is arranged in framework 100 by supporting seat 322.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. the circuit breaker/load switch with isolation fracture, comprise a framework, it is characterized in that, the fixed contact that has a pair of heteropleural to arrange in described framework, be provided with the double motion head arc control device between fixed contact, the double motion head arc control device are arranged in swivel mount, swivel mount is arranged in framework by rotating shaft, the double motion head arc control device can rotate around the axis with swivel mount, be provided with the pair of conductive bar in the double motion head arc control device, the head of conducting rod is relative, the afterbody of conducting rod stretches out respectively the two ends of double motion head arc control device, conducting rod can be done straight reciprocating motion in the double motion head arc control device, each conducting rod afterbody is connected with moving contact, moving contact is along with the rotation of swivel mount, be connected on fixed contact, be provided with draw-in groove on described fixed contact, be provided with pin on moving contact, during combined floodgate, swivel mount rotates, drive moving contact and first contact with fixed contact, realize the closure of isolation fracture, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, pair of conductive bar contact in final double motion head arc control device, realize closing a floodgate, during separating brake, along with the motion that matches of the pin on moving contact and the draw-in groove on fixed contact, the conducting rod in the double motion head arc control device first separates, and reaches and necessarily opens distance, and arc control device divide has no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
2. a kind of circuit breaker/load switch with isolation fracture according to claim 1, is characterized in that, described fixed contact is arranged in framework by supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153705.3A CN102255257B (en) | 2011-06-09 | 2011-06-09 | Circuit breaker/load switch with isolating distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153705.3A CN102255257B (en) | 2011-06-09 | 2011-06-09 | Circuit breaker/load switch with isolating distance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102255257A CN102255257A (en) | 2011-11-23 |
| CN102255257B true CN102255257B (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110153705.3A Active CN102255257B (en) | 2011-06-09 | 2011-06-09 | Circuit breaker/load switch with isolating distance |
Country Status (1)
| Country | Link |
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| CN (1) | CN102255257B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977087B (en) * | 2016-06-15 | 2018-04-03 | 上海天灵开关厂有限公司 | The switch cubicle that the static contact positioning tool of double motion head switch and the frock are applicable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020800A1 (en) * | 1980-05-31 | 1981-12-17 | Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen | Quick release for vacuum circuit breaker - has low inertia mechanism mounted directly on live pole |
| DE3901712A1 (en) * | 1989-01-21 | 1990-08-02 | Sachsenwerk Ag | Vacuum switch |
| CN2651923Y (en) * | 2003-09-29 | 2004-10-27 | 深圳市光辉电器实业有限公司 | Vacuum circuit breaker |
-
2011
- 2011-06-09 CN CN201110153705.3A patent/CN102255257B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020800A1 (en) * | 1980-05-31 | 1981-12-17 | Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen | Quick release for vacuum circuit breaker - has low inertia mechanism mounted directly on live pole |
| DE3901712A1 (en) * | 1989-01-21 | 1990-08-02 | Sachsenwerk Ag | Vacuum switch |
| CN2651923Y (en) * | 2003-09-29 | 2004-10-27 | 深圳市光辉电器实业有限公司 | Vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102255257A (en) | 2011-11-23 |
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