CN201773759U - High-voltage vacuum circuit breaker - Google Patents
High-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN201773759U CN201773759U CN2010201772815U CN201020177281U CN201773759U CN 201773759 U CN201773759 U CN 201773759U CN 2010201772815 U CN2010201772815 U CN 2010201772815U CN 201020177281 U CN201020177281 U CN 201020177281U CN 201773759 U CN201773759 U CN 201773759U
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- CN
- China
- Prior art keywords
- iron core
- static iron
- transmission shaft
- ring
- circuit breaker
- 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 relates to a high-voltage vacuum circuit breaker of a permanent magnet operation mechanism, belonging to the technical field of high-voltage switch. The high-voltage vacuum circuit breaker is characterized in that a base of the permanent magnet operation mechanism is fixedly provided with two ring-shaped static iron cores; a ring-shaped permanent magnet and a ring-shaped electromagnetic coil are arranged between the static iron cores; a transmission shaft connected with a tank-shaped movable iron core is installed on central holes of the static iron cores; and one end of the transmission shaft is connected with a main shaft. The high-voltage vacuum circuit breaker has the beneficial effects of being reliable, labor-saving and convenient for operation, simple in structure, convenient for processing and debugging, low in manufacturing cost and beneficial to large-batch production and popularization.
Description
Technical field
The utility model relates to the high-pressure vacuum breaker of a kind of permanent-magnet manipulating mechanism of high-voltage switch gear technical field.
Background technology
What high-pressure vacuum breaker used at present is spring operating mechanism mostly, because the number of spare parts of spring operating mechanism is many, the requirement on machining accuracy height, the transmission process complexity, thereby failure rate height, life-span is short, to maintenance personal's specification requirement height, can not satisfy the long and high requirement of reliability of vacuum circuit-breaker life-span; And the vacuum circuit-breaker of present known use permanent-magnet manipulating mechanism, permanent magnet mechanism adopts monostable or bistable mode, and permanent magnet is a watt shape, and processing technology and assembling and setting are complicated, and the corresponding increase of manufacturing expense is unfavorable for mass production and marketing.
Summary of the invention
The utility model provides a kind of with the permanent-magnet manipulating mechanism of unicoil, monostable, cylindrical permanent-magnet iron and the high-pressure vacuum breaker of intelligent controller for for solving the technical problem that operating mechanism exists in the existing vacuum circuit-breaker.The technical scheme that the utility model is taked is: a kind of high-pressure vacuum breaker, form by main shaft, permanent-magnet manipulating mechanism, intelligent controller, vacuum interrupter, oil bumper etc., it is characterized in that, be fixed with the static iron core of two ring-types on the base of permanent-magnet manipulating mechanism, the permanent magnet of ring-type and the solenoid of ring-type are installed between static iron core and the static iron core, the power transmission shaft that is connected with the moving iron core of jar shape is installed on the centre bore of static iron core, and an end of power transmission shaft is connected with main shaft.The use the beneficial effects of the utility model are, not only operate reliably, laborsaving, convenient, and its simple in structure, convenient processing and debugging, cheap is beneficial to mass production and marketing.
Description of drawings
Fig. 1 is the utility model inner plane structural representation.
Fig. 2 is the utility model internal mechanical drive mechanism schematic diagram.
Fig. 3 is a permanent-magnet manipulating mechanism internal structure schematic diagram.
Fig. 4 is the A-A generalized section of Fig. 3.
Embodiment
Among Fig. 1, the integral type form of arranging before and after circuit breaker adopts, permanent-magnet manipulating mechanism 2, main shaft 3, manual switching-off device 4, oil bumper 5, storage capacitor 6, intelligent controller 7, mechanical transmissioning piece 14,15,16,17,18,19 etc. is arranged in the operating mechanism casing 1.
Among Fig. 2, primary conductive spare 8, vacuum interrupter 11, insulated tension pole 13 are assemblied in the insulating cylinder 9, be installed in operating mechanism casing 1 then after.Power transmission shaft 27 on the permanent-magnet manipulating mechanism 2 is connected with main shaft 3 by eyelet bolt 19, connecting plate 18, connecting lever 17.Insulated tension pole 13 is connected with main shaft 3 with driving three-phase connecting lever 16 by two connecting plates 14.
Among Fig. 3 and Fig. 4, first static iron core 22 and second static iron core 25 of ring-type are fixed on the base 23 by connected modes such as bolt 28 or welding, are installed on the centre bore of second static iron core 25 by the power transmission shaft 27 that connected modes such as bolt 29 or welding are connected with the moving iron core 21 of jar shape.One end of power transmission shaft 27 is connected with main shaft 3.Between first static iron core 22 and second static iron core 25, embed permanent magnet 24; In the cavity of first static iron core 22 and second static iron core 25 and moving iron core 21 compositions, solenoid 26 is installed.Moving iron core 21, the first static iron cores 22, the permanent magnet 24 and second static iron core 25 are formed the closed magnetic path of permanent-magnet manipulating mechanism.
Operation principle of the present utility model is as follows:
The internal mechanical transmission process of circuit breaker is: the moving iron core 21 of operating mechanism and power transmission shaft 27 drive 16 interlocks of three-phase connecting lever by eyelet bolt 19, connecting plate 18, connecting lever 17, main shaft 3, and three-phase connecting lever 16 moves up and down to enter by the moving contacts 10 in two connecting plates, 14 drive insulated tension poles 13 and the vacuum interrupter 11 and closes a floodgate or the separating brake position.
During combined floodgate, intelligent controller control storage capacitor provides drive current to solenoid 26, the electromagnetic field that solenoid 26 produces is consistent with the magnetic direction that permanent magnet 24 produces, the magnetic line of force forms closed magnetic circuit by second static iron core 25, moving iron core 21, first static iron core 22, between the magnetic gap of the upper surface of moving iron core 21 lower surfaces and first static iron core 22 and second static iron core 25 formation, produce electromagnetic attraction, along with the continuous increase of drive current, the magnetic force F=B that magnetic field produces
2S/2u increases gradually; when actuating force during greater than the pretension of sluice separating spring 15; moving iron core 21 moves downward; by power transmission shaft 27; eyelet bolt 19; connecting plate 18; connecting lever 17; main shaft 20 drives 16 interlocks of three-phase connecting lever; three-phase connecting lever 16 drives insulated tension pole 13 by two connecting plates 14 and moving contact 10 moves upward; and magnetic force sharply strengthens along with the minimizing of magnetic gap; the moving iron core 21 final moving contacts 10 that drive enter closing position; sluice separating spring 15 and compression contacts spring 12 in this course simultaneously stretch; intelligent controller 7 cuts off solenoid 26 power supplys by the guard time of detected mechanism position signal or program setting at this moment.Because this moment, moving iron core 21 lower surfaces contacted with the upper surface of first static iron core 22 and second static iron core 25, ferromagnetic circuit is closed, magnetic resistance is very little, the suction of permanent magnet 24 will move iron core 21 and inhale securely and be in the same place with first static iron core 22, second static iron core 25, moving iron core 21 and moving contact 10 remain on closing position, circuit breaker is in "on" position, and promptly closing position permanent magnetism keeps.
During separating brake, intelligent controller 7 control storage capacitors 6 provide the drive current of a current opposite in direction during with combined floodgate to solenoid 26, the electromagnetic field that this drive current produces is opposite with the magnetic direction that permanent magnet 24 produces, weakened the magnetic field of permanent magnet 24 electromagnetic circuits, along with the continuous increase of drive current, the power F=B that magnetic field produces
2S/2u increases gradually; when actuating force during greater than the magnetic force of permanent magnet 24; moving iron core 21 moves upward; by power transmission shaft 27; eyelet bolt 19; connecting plate 18; connecting lever 17; main shaft 20 drives 16 interlocks of three-phase connecting lever; the three-phase connecting lever drives insulated tension pole 13 by two connecting plates 14 and moving contact 10 moves downward; magnetic force sharply reduces along with the increase of magnetic gap; intelligent controller 7 is by the guard time of detected mechanism position signal or program setting at this moment; cut off solenoid 26 power supplys; the energy that sluice separating spring 15 and contact pressure spring 12 discharge finally drives moving contact and enters the separating brake position; when stopping, cushion with spacing by oil bumper 5 near motion.This moment, sluice separating spring 15 and contact pressure spring 12 still had certain pretension and precompression, and moving iron core 21 and moving contact 10 remain on the separating brake position, and circuit breaker is in gate-dividing state, and promptly the separating brake position spring keeps.
Claims (3)
1. high-pressure vacuum breaker, by main shaft, permanent-magnet manipulating mechanism, intelligent controller, vacuum interrupter, compositions such as oil bumper, it is characterized in that, be fixed with first static iron core (22) and second static iron core (25) of two ring-types on the base (23) of permanent-magnet manipulating mechanism (2), the solenoid (28) of permanent magnet of ring-type (24) and ring-type is installed between first static iron core (22) and second static iron core (25), the power transmission shaft (27) that is connected with the moving iron core (21) of jar shape is installed on the centre bore of second static iron core (25), and an end of power transmission shaft (27) is connected with main shaft (3).
2. a kind of high-pressure vacuum breaker according to claim 1 is characterized in that static iron core (22) and static iron core (25) are fixed on the base (23) by bolt (28), and power transmission shaft (27) is connected by the moving iron core (21) of bolt (29) and jar shape.
3. a kind of high-pressure vacuum breaker according to claim 1, an end that it is characterized in that power transmission shaft (27) is by being connected with main shaft (3) with eyelet bolt (19), connecting plate (18), connecting lever (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201772815U CN201773759U (en) | 2010-04-27 | 2010-04-27 | High-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201772815U CN201773759U (en) | 2010-04-27 | 2010-04-27 | High-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773759U true CN201773759U (en) | 2011-03-23 |
Family
ID=43753602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201772815U Expired - Fee Related CN201773759U (en) | 2010-04-27 | 2010-04-27 | High-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425177A (en) * | 2013-09-02 | 2015-03-18 | 新疆特变电工自控设备有限公司 | Intelligent integrated vacuum circuit breaker |
| WO2015196797A1 (en) * | 2014-06-24 | 2015-12-30 | 上海诺雅克电气有限公司 | Short-circuit protection action current regulating method and device thereof for multipolar electromagnetic trip |
-
2010
- 2010-04-27 CN CN2010201772815U patent/CN201773759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425177A (en) * | 2013-09-02 | 2015-03-18 | 新疆特变电工自控设备有限公司 | Intelligent integrated vacuum circuit breaker |
| WO2015196797A1 (en) * | 2014-06-24 | 2015-12-30 | 上海诺雅克电气有限公司 | Short-circuit protection action current regulating method and device thereof for multipolar electromagnetic trip |
| US9991078B2 (en) | 2014-06-24 | 2018-06-05 | Noark Electrics (Shanghai) Co. Ltd. | Short-current protection action current adjusting method and device thereof and device for multi-pole electromagnetic release |
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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: 20110323 Termination date: 20130427 |