CN2717000Y - Centrally positioned vacuum circuit breaker - Google Patents
Centrally positioned vacuum circuit breaker Download PDFInfo
- Publication number
- CN2717000Y CN2717000Y CN 200420062672 CN200420062672U CN2717000Y CN 2717000 Y CN2717000 Y CN 2717000Y CN 200420062672 CN200420062672 CN 200420062672 CN 200420062672 U CN200420062672 U CN 200420062672U CN 2717000 Y CN2717000 Y CN 2717000Y
- Authority
- CN
- China
- Prior art keywords
- bellows
- cavity
- vacuum
- compression spring
- screw rod
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a centrally positioned vacuum circuit breaker, belonging to high voltage transmission and distribution equipment, comprising a frame, a three-phase vacuum arc-extinguishing chamber and a control mechanism. The static end of the vacuum arc-extinguishing chamber is connected with an upper conducting bracket through screw bolts, and an enclosed corrugated pipe is arranged in a concave cavity at the static end of the vacuum arc-extinguishing chamber. An upright screw rod is fixed on the top surface of the corrugated pipe, and a compression spring is sheathed on the periphery of the corrugated pipe; a press plate is sheathed on the screw rod, and the compression spring is positioned between the bottom of the concave cavity and the bottom surface of the press plate. The screw rod which is passed through the press plate is matchingly connected with a threaded hole on the bottom of a shore, and the bottom surface of the shore is pressed on the top surface of the press plate; the upper end of the shore is threaded out of a guiding shockproof hole on the upper conducting bracket, and the upper end of the shore is connected with a travel switch through a crank arm and an insulating push rod. The centrally positioned vacuum circuit breaker can realize the online monitoring and alarming for the vacuum degree of the vacuum arc-extinguishing chamber during the course of charged running, and has the advantages of compact conformation and easy installation.
Description
Technical field
The utility model belongs to the high pressure equipment for power transmission and distribution, relates to a kind of middle vacuum circuit-breaker.
Background technology
The middle vacuum circuit-breaker generally is used for intermediate switchgear cabinet, and it includes parts such as framework, three-phase vacuum interrupter, operating mechanism.The quiet end of vacuum interrupter is positioned at the top, and is connected with the last conducting bracket of top; The moved end of vacuum interrupter is positioned at the below, and it carries out the divide-shut brake action by the operating mechanism actuating.The middle vacuum circuit-breaker of existing this class formation adopts the vacuum interrupter of ordinary construction, can't in time warn as vacuum interrupter gas leakage takes place in equipment running process, thereby bring accident potential.
Summary of the invention
Technical problem to be solved in the utility model is, providing a kind of can carry out online monitoring alarm to vacuum level of vacuum arc-quenching chamber in the charging operation process, and compact conformation, middle vacuum circuit-breaker easy for installation.
Middle vacuum circuit-breaker of the present utility model includes framework, three-phase vacuum interrupter and operating mechanism, and the moved end of vacuum interrupter is driven by insulated tension pole by operating mechanism, and the quiet end of vacuum interrupter is connected with last conducting bracket by bolt.There is a cavity recessed down at the shell center of the quiet end of described vacuum interrupter, be mounted with a bellows in the cavity, the end face of bellows is hermetically enclosed, and the bottom surface of bellows lower end and cavity is tightly connected, and the inner chamber of bellows and the vacuum chamber of vacuum interrupter link; Be installed with a vertical screw rod on the end face of bellows, the bellows periphery is with a compression spring, be with a pressing plate on the screw rod, compression spring lower end is pressed in the bottom of cavity, compression spring upper end withstands on the bottom surface of pressing plate, and the screw rod on the bellows end face passes from the through hole at pressing plate center, and the screwed hole with a fore-set bottom is connected again, the bottom surface of this fore-set is pressed on the end face of pressing plate, and it is played position-limiting action.The described conducting bracket center of going up has a shockproof hole of guiding, the upper end of above-mentioned fore-set is passed by this shockproof hole of leading, there is the master arm of a connecting lever to be pressed in the upper end of fore-set, the passive arm of connecting lever is connected with one and thoroughly does away with the edge push rod, and the front end of insulation push rod is connected with a travel switch that is installed on the framework.The described position relative with above-mentioned cavity, bottom surface of going up conducting bracket has the recessed cavity that makes progress, and it can be the compression spring and pressing plate provides displacement space.The above-mentioned pressing plate that is positioned at compression spring upper end, its with bottom surface that the compression spring contact on a diameter can be set and compress the suitable boss of spring inside diameter, with the swing of limit compression spring.
The utility model in the charged course of work when the vacuum arc control device reduce because of damaging gas leakage vacuum degree, bellows will extend upwardly, push the connecting lever rotation by fore-set, press travel switch by the insulation push rod again, thereby can trigger the purpose that the monitoring, alarming circuit reaches online monitoring alarm; Because bellows, compression spring and pressing plate etc. partly are embedded in the cavity of the quiet end of vacuum interrupter, its compact conformation, less to the installation of last conducting bracket influence, to compare its basic profile variation less with the middle vacuum circuit-breaker of current version, improved its versatility; In addition, contract spring and pressing plate to the cavity of top offset owing to reserved voltage supply on the bottom surface of last conducting bracket, the length dimension of favourable shortening vacuum interrupter makes structure compactness more.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is that the quiet end of arc control device reaches the structure for amplifying schematic diagram of going up the conducting bracket part among the utility model embodiment.
Embodiment
As shown in the figure, this middle vacuum circuit-breaker comprises framework 1, vacuum interrupter 2, operating mechanism 3, and the vacuum interrupter lower end is moved end 4, and its upper end is quiet end 5, and the moved end drives by insulated tension pole 6, and quiet end is connected with last conducting bracket 7.Quiet end at vacuum interrupter is provided with cavity 8, is provided with the bellows 9 that is sealedly connected on the cavity bottom surface in the cavity, vacuum chamber 10 UNICOMs of bellows inner chamber and vacuum interrupter.Be connected with vertical screw rod 11 on the end face of bellows, screw rod and fore-set 12 are by being threaded, pressing plate 13 and compression spring 14 are installed between the bottom surface of fore-set 12 and the bottom surface of cavity, boss 20 on the pressing plate bottom surface is stuck in the inner ring that compresses spring (as Fig. 2), to prevent to compress the spring transverse shift.The shockproof hole 15 of guiding that the conducting bracket center is passed in the upper end of fore-set contacts with the master arm of outside connecting lever 16, and the passive arm of connecting lever 16 is connected with travel switch 18 on being installed in framework by insulation push rod 17.Have the contract cavity 19 of spring and pressing plate displacement of voltage supply in the bottom surface of last conducting bracket 7.
Claims (3)
1, a kind of middle vacuum circuit-breaker, include framework (1), three-phase vacuum interrupter (2) and operating mechanism (3), the moved end of vacuum interrupter (4) is driven by insulated tension pole (6) by operating mechanism, the quiet end (5) of vacuum interrupter is connected with last conducting bracket (7) by bolt, it is characterized in that: there is a cavity recessed down (8) at the shell center of the quiet end of described vacuum interrupter, be mounted with a bellows (9) in the cavity, the end face of bellows is hermetically enclosed, the bottom surface of bellows lower end and cavity is tightly connected, and the inner chamber of bellows and the vacuum chamber of vacuum interrupter (10) link; Be installed with a vertical screw rod (11) on the end face of bellows, the bellows periphery is with a compression spring (14), be with a pressing plate (13) on the screw rod (11), compression spring (14) lower end is pressed in the bottom of cavity, compression spring upper end withstands on the bottom surface of pressing plate (13), screw rod on the bellows end face (11) passes from the through hole at pressing plate center, and the screwed hole with a fore-set (12) bottom is connected again, and the bottom surface of this fore-set (12) is pressed on the end face of pressing plate (13); Last conducting bracket (7) center has a guiding shockproof hole (15), the upper end of above-mentioned fore-set is passed by this shockproof hole of leading, there is the master arm of a connecting lever (16) to be pressed in the upper end of fore-set, the passive arm of connecting lever (16) is connected with one and thoroughly does away with edge push rod (17), the front end and a travel switch 18 that is installed on the framework of insulation push rod) be connected.
2, middle vacuum circuit-breaker according to claim 1 is characterized in that: the described position relative with cavity (8), bottom surface of leading the support that powers on (7) has the recessed cavity (19) that makes progress.
3, middle vacuum circuit-breaker according to claim 1 and 2 is characterized in that: a diameter is set and compresses the suitable boss (20) of spring inside diameter on described pressing plate (13) and the bottom surface that contact of compression spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062672 CN2717000Y (en) | 2004-07-14 | 2004-07-14 | Centrally positioned vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062672 CN2717000Y (en) | 2004-07-14 | 2004-07-14 | Centrally positioned vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717000Y true CN2717000Y (en) | 2005-08-10 |
Family
ID=34873219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062672 Expired - Fee Related CN2717000Y (en) | 2004-07-14 | 2004-07-14 | Centrally positioned vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717000Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847840A (en) * | 2010-06-09 | 2010-09-29 | 浙宝电气(杭州)集团有限公司 | Annular net cabinet internally provided with vacuum breaker |
| CN102414769A (en) * | 2009-04-29 | 2012-04-11 | Abb技术有限公司 | A support bracket |
| FR3037709A1 (en) * | 2015-06-22 | 2016-12-23 | Schneider Electric Ind Sas | VACUUM BULB AND ELECTRICAL PROTECTIVE APPARATUS COMPRISING SUCH BULB |
-
2004
- 2004-07-14 CN CN 200420062672 patent/CN2717000Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414769A (en) * | 2009-04-29 | 2012-04-11 | Abb技术有限公司 | A support bracket |
| CN102414769B (en) * | 2009-04-29 | 2015-02-25 | Abb技术有限公司 | A support bracket |
| CN101847840A (en) * | 2010-06-09 | 2010-09-29 | 浙宝电气(杭州)集团有限公司 | Annular net cabinet internally provided with vacuum breaker |
| FR3037709A1 (en) * | 2015-06-22 | 2016-12-23 | Schneider Electric Ind Sas | VACUUM BULB AND ELECTRICAL PROTECTIVE APPARATUS COMPRISING SUCH BULB |
| CN106257611A (en) * | 2015-06-22 | 2016-12-28 | 施耐德电器工业公司 | Vacuum interrupter and include the electric protective device of this relay |
| EP3109878A1 (en) * | 2015-06-22 | 2016-12-28 | Schneider Electric Industries SAS | Vacuum interrupter and electrical protection apparatus comprising such an interrupter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050810 Termination date: 20100714 |