CN102255257A - Circuit breaker/load switch with isolating distance - Google Patents
Circuit breaker/load switch with isolating distance Download PDFInfo
- Publication number
- CN102255257A CN102255257A CN2011101537053A CN201110153705A CN102255257A CN 102255257 A CN102255257 A CN 102255257A CN 2011101537053 A CN2011101537053 A CN 2011101537053A CN 201110153705 A CN201110153705 A CN 201110153705A CN 102255257 A CN102255257 A CN 102255257A
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- control device
- moving contact
- arc control
- fixed contact
- circuit breaker
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- Arc-Extinguishing Devices That Are Switches (AREA)
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 be used for the switching device of medium voltage switchgear equipment, particularly relate to a kind of circuit breaker/on-load switch with isolation fracture.
Background technology
In existing medium voltage switchgear equipment, circuit breaker or on-load switch and isolating switch all be 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 be independent structures respectively, though very ripe technically, there is following problem,
1. circuit breaker (or on-load switch) is independent respectively with isolating switch, can increase the space, in today of land resource growing tension, the user presses for the space availability ratio that improves switchgear, and the higher switchgear size of broad is difficult to satisfy user's demand in this respect gradually;
2. there are an operating sequence problem in circuit breaker and isolating switch separate operation, need special interlock to protect, and in the switchgear of compactness, have occupied certain space; This structure also has certain requirement to technical level of operators simultaneously, because of human factor causes misoperation, unnecessary quality accident takes place in the time of will causing the switchgear operation.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of circuit breaker/on-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, the contact pressure when optimized distribution is closed a floodgate.
The present invention solves above-mentioned technical problem by following technical proposals,
A kind of circuit breaker/on-load switch with isolation fracture, comprise a framework, the fixed contact that has a pair of heteropleural to be provided with in the described framework, be provided with the double motion head arc control device between the fixed contact, the double motion head arc control device are arranged in the swivel mount, swivel mount is installed in the 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, and the afterbody of conducting rod stretches out the two ends of double motion head arc control device respectively, 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, and moving contact is connected on the fixed contact along with the rotation of swivel mount.
Further, described fixed contact is provided with draw-in groove, moving contact is provided with pin, during combined floodgate, swivel mount rotates, and drives moving contact and contacts earlier with fixed contact, realize the closure of isolation fracture, along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, the pair of conductive bar contact in the final double motion head arc control device realizes closing a floodgate;
During separating brake, along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, the conducting rod in the double motion head arc control device separates earlier, reaches and necessarily opens distance, and the arc control device branch is had no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
Further, described fixed contact is arranged in the 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 the space;
2. produce in operation the order of operation of regulation naturally, promptly during separating brake, arc control device fracture separately divides the isolation fracture more earlier, during combined floodgate, closes isolation fracture earlier, closes the arc control device fracture again, has guaranteed the correctness of operating sequence, the interlock that need not to add;
3. utilize two isolation fractures, make isolation fracture bear the fracture insulation level, reduced requirement insulation level between the arc control device fracture;
4. adopt the mode of double end motion, 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.
Description of drawings
Fig. 1 is the structural representation of a kind of circuit breaker/on-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 Figure 2, a kind of circuit breaker/on-load switch that the present invention proposes with isolation fracture, comprise framework 100, the fixed contact 310 and the fixed contact 320 that have heteropleural to be provided with in the described framework 100, be provided with double motion head arc control device 200 between the fixed contact, the double motion head arc control device are arranged in the swivel mount 201, swivel mount 201 is installed in the 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 the double motion head arc control device 200, the head of conducting rod is relative, the afterbody of conducting rod stretches out the two ends of double motion head arc control device 200 respectively, 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, and moving contact 211 is along with the rotation of swivel mount, be connected on the fixed contact 310, conducting rod 220 afterbodys are connected with moving contact 221, and moving contact 221 is connected on the fixed contact 320 along with the rotation of swivel mount.
Concrete, fixed contact 310 is provided with draw-in groove 311, and moving contact 211 is provided with pin 2111, and fixed contact 320 is provided with draw-in groove 321, moving contact 221 is provided with pin 2211, during combined floodgate, swivel mount rotates, and drives moving contact and contacts earlier with fixed contact, realize the closure of isolation fracture, along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, the pair of conductive bar contact in the final double motion head arc control device realizes closing a floodgate;
During separating brake, along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, the conducting rod in the double motion head arc control device separates earlier, reaches and necessarily opens distance, and the arc control device branch is had no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
Fixed contact 310 is arranged in the framework 100 by supporting seat 312, and fixed contact 320 is arranged in the framework 100 by supporting seat 322.
More than show 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 describes in the foregoing description and the specification 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 (3)
1. circuit breaker/on-load switch with isolation fracture, comprise a framework, it is characterized in that, the fixed contact that has a pair of heteropleural to be provided with in the described framework, be provided with the double motion head arc control device between the fixed contact, the double motion head arc control device are arranged in the swivel mount, swivel mount is installed in the framework by rotating shaft, and the double motion head arc control device can rotate around the axis with swivel mount, is 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 the two ends of double motion head arc control device respectively, and conducting rod can be done straight reciprocating motion in the double motion head arc control device, and each conducting rod afterbody is connected with moving contact, moving contact is connected on the fixed contact along with the rotation of swivel mount.
2. a kind of circuit breaker/on-load switch according to claim 1 with isolation fracture, it is characterized in that, described fixed contact is provided with draw-in groove, and moving contact is provided with pin, during combined floodgate, swivel mount rotates, drive moving contact and contact earlier with fixed contact, the closure of realization isolation fracture is along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, pair of conductive bar contact in the final double motion head arc control device realizes closing a floodgate;
During separating brake, along with the motion that matches of pin on the moving contact and the draw-in groove on the fixed contact, the conducting rod in the double motion head arc control device separates earlier, reaches and necessarily opens distance, and the arc control device branch is had no progeny, and moving contact and fixed contact separate again, realize the separation of isolation fracture.
3. a kind of circuit breaker/on-load switch with isolation fracture according to claim 1 is characterized in that described fixed contact is arranged in the 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 true CN102255257A (en) | 2011-11-23 |
| CN102255257B 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 |
|---|---|
| CN (1) | CN102255257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977087A (en) * | 2016-06-15 | 2016-09-28 | 上海天灵开关厂有限公司 | Static contact positioning tool for dual-movable-contact switch, and applicative switch cabinet applying tool |
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977087A (en) * | 2016-06-15 | 2016-09-28 | 上海天灵开关厂有限公司 | Static contact positioning tool for dual-movable-contact switch, and applicative switch cabinet applying tool |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102255257B (en) | 2014-01-01 |
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