CN200986886Y - Permanent magnet control mechanism vacuum circuit breaker - Google Patents
Permanent magnet control mechanism vacuum circuit breaker Download PDFInfo
- Publication number
- CN200986886Y CN200986886Y CN 200620136308 CN200620136308U CN200986886Y CN 200986886 Y CN200986886 Y CN 200986886Y CN 200620136308 CN200620136308 CN 200620136308 CN 200620136308 U CN200620136308 U CN 200620136308U CN 200986886 Y CN200986886 Y CN 200986886Y
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- iron core
- connecting lever
- permanent
- pull bar
- moving
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A vacuum breaker with a permanent magnetism operating mechanism consists of a bracket; a vacuum arc chute is mounted at the low end of the bracket; a moving contact disposed on a vertical pullrod and a static contact are arranged in the vacuum arc chute; the vertical pullrod connects with a regulating lever (5) through a pin; the regulating lever (5) connects with a regulating lever (6) through a removable pin; one end of the regulating lever (7) connects with the regulating lever (6) and a pullrod (8) through a pin, and the other end of the regulating lever (7) connects with a bracket (1) though a removable pin; the pullrod (8) connects with the permanent magnetism operating mechanism (9). The opening and closing of the static contact and the moving contact are operated by the permanent magnetism operating mechanism. The utility has a simple structure, is reliable, environment friendly and is of low cost.
Description
Technical field
The utility model relates to a kind of vacuum circuit-breaker, particularly a kind of permanent-magnet manipulating mechanism vacuum circuit-breaker.
Background technology
Vacuum circuit-breaker is that main contact breaks or closed a kind of tie breaker at high vacuum environment.Present employed vacuum circuit-breaker includes moving contact and the fixed contact that is contained in the vacuum insulation shell, in the shell is vacuum, moving contact is connected with operating mechanism by connecting rod, fixed contact is connected with the circuit that needs switch, be characterized in, deciliter operating mechanism of existing vacuum circuit-breaker adopts the spring actuating, spring operating mechanism is under external force is handled, through lever construction, cam mechanism is the potential energy of spring with the external force power conversion, through the uncoupling rigging retracting spring energy of cam mechanism and spring, through back-moving spring mechanism is resetted and handle circuit breaker again.Use the shortcoming of spring operating mechanism to be: the reliability of mechanism is low, and the life-span is short, and the electric life of general spring operating mechanism surpasses this life-span about 3000～5000 times, and mechanism reliability reduces; Complex structure, parts are many, are difficult for processing, and the assembling link is many, has also reduced its reliability, and production cost is bigger.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of permanent-magnet manipulating mechanism vacuum circuit-breaker is provided, and has simple in structure, good reliability, environmental protection and the low characteristics of cost.
To achieve these goals, the technical solution adopted in the utility model is: comprise a support 1, vacuum interrupter 10 is equipped with in support 1 lower end, the moving contact 3 that disposes fixed contact 2 in the vacuum interrupter 10 and match with fixed contact 2, moving contact 3 is arranged on the vertical pull bar 4, dispose sluice separating spring 19 on the vertical pull bar 4, vertical pull bar 4 is connected with connecting lever 5 by removable pin 11, connecting lever 5 is connected with connecting lever 6 by removable pin 20, one end of connecting lever 7 is connected with pull bar 8 with connecting lever 6 by removable pin 22, the other end of connecting lever 7 is connected on the support 1 by removable pin 21, pull bar 8 is connected with the axis of guide 18 of permanent-magnet manipulating mechanism 9, the power transmission direction of permanent-magnet manipulating mechanism 9 becomes 90 degree with the direction of motion of moving contact 3, and three-phase vacuum interrupter 10 is vertical arrangement.
Another characteristics of the present utility model are: permanent-magnet manipulating mechanism 9 comprises the static iron core 12 of a hollow, be provided with moving iron core 14 in the static iron core 12, static iron core 12 upper and lower surfaces are provided with the opening 13 that is on the axis, moving iron core 14 is provided with the axis of guide 18, static iron core 12 is stretched out from opening 13 in the axis of guide 18 two ends, between moving iron core 14 and static iron core 12, be provided with closing coil 15 and switching winding 16, between closing coil 15 and switching winding 16, be provided with permanent magnet 17.
Description of drawings
Fig. 1 is the structural representation of permanent-magnet manipulating mechanism vacuum circuit-breaker.
Fig. 2 is the structural representation of electromagnet in the permanent-magnet manipulating mechanism.
Embodiment
Specifically describe structural principle of the present utility model and operation principle below in conjunction with accompanying drawing.
Referring to Fig. 1, the utility model comprises a support 1, vacuum interrupter 10 is equipped with in support 1 lower end, the moving contact 3 that disposes fixed contact 2 in the vacuum interrupter 10 and match with fixed contact 2, moving contact 3 is arranged on the vertical pull bar 4, dispose sluice separating spring 19 on the vertical pull bar 4, vertical pull bar 4 is connected with connecting lever 5 by removable pin 11, connecting lever 5 is connected with connecting lever 6 by removable pin 20, one end of connecting lever 7 is connected with pull bar 8 with connecting lever 6 by removable pin 22, the other end of connecting lever 7 is connected on the support 1 by removable pin 21, pull bar 8 is connected with the axis of guide 18 of permanent-magnet manipulating mechanism 9, the power transmission direction of permanent-magnet manipulating mechanism 9 becomes 90 degree with the direction of motion of moving contact 3, and three-phase vacuum interrupter 10 is vertical arrangement.
Referring to Fig. 2, said permanent-magnet manipulating mechanism 9 comprises the static iron core 12 of a hollow, static iron core 12 upper and lower surfaces are provided with the opening 13 that is on the axis, moving iron core 14 is broad in the middle small in ends, moving iron core 14 is provided with the axis of guide 18, static iron core 12 is stretched out from opening 13 in the axis of guide 18 two ends, is provided with closing coil 15 and switching winding 16 between moving iron core 14 and static iron core 12, is provided with permanent magnet 17 between closing coil 15 and switching winding 16.
Operation principle of the present utility model is: when permanent-magnet manipulating mechanism 9 is in closing position, permanent magnet 17 produces the anticlockwise magnetic line of force, at this moment, bottom magnetic circuit magnetic resistance is much larger than the top magnetic circuit, moving iron core 14 moves upward, and up to being subjected to stopping of static iron core 12, remains on closing position, the axis of guide 18 drives pull bars 8, connecting lever 5, connecting lever 6, connecting lever 7 and does mechanical movement, thereby moving contact 3 moves downward to touch with fixed contact 2 under vertical pull bar 4 drives and closes.
When permanent-magnet manipulating mechanism 9 separating brakes, switching winding 16 energisings, the electric current in the switching winding 16 produces magnetic field, and its magnetic line of force is a clockwise direction.Switching winding 16 is opposite with the magnetic direction that permanent magnet 17 is produced at the magnetic direction that the top working gas gap produces.When the electric current in the switching winding 16 reaches set point, the magnetic line of force of mechanism upper end is cancelled totally, moving iron core 14 beginnings move downward under the effect of sluice separating spring 19 and a small amount of electromagnetic force, the axis of guide 18 drive pull bars 8, connecting lever 5, connecting lever 6, connecting lever 7 are done mechanical movement, thereby moving contact 3 moves upward under vertical pull bar 4 drives and separates with fixed contact 2, along with reducing of bottom air gap, air-gap reluctance also reduces gradually, when the magnetic flux density of bottom air gap is far longer than the magnetic flux density of top air gap, moving iron core 3 will be accelerated motion downwards.When moving iron core 3 moves to stroke after half, its direction of resultant magnetic field that coil current and permanent magnet 17 produce is downward, so, further quickened the motion of moving iron core 3 again, put in place up to breaker open operation.After breaker open operation put in place, interlock returned signal to controller, cut off the electric current in the switching winding 16 automatically, and moving iron core 3 remains on the separating brake position.
Because employing vacuum extinction, it is not affected by environment to cut-off big electric current, has in use not the advantage that can ionization goes out pernicious gas.
Claims (2)
1, a kind of permanent-magnet manipulating mechanism vacuum circuit-breaker, comprise a support (1), vacuum interrupter (11) is equipped with in support (1) lower end, the moving contact (3) that disposes fixed contact (2) in the vacuum interrupter (11) and match with fixed contact (2), moving contact (3) is arranged on the vertical pull bar (4), dispose sluice separating spring (19) on the vertical pull bar 4, vertical pull bar (4) is connected with connecting lever (5) by removable pin (11), connecting lever (5) is connected with connecting lever (6) by removable pin (20), one end of connecting lever (7) is connected with pull bar (8) with connecting lever (6) by removable pin (22), the other end of connecting lever (7) is connected on the support (1) by removable pin (21), it is characterized in that, pull bar (8) is connected with the axis of guide (18) of permanent-magnet manipulating mechanism (9), the power transmission direction of permanent-magnet manipulating mechanism (9) becomes 90 degree with the direction of motion of moving contact (3), and three-phase vacuum interrupter (10) is vertical arrangement.
2, a kind of permanent-magnet manipulating mechanism vacuum circuit-breaker according to claim 1, it is characterized in that, permanent magnetic operating operating mechanism (9) comprises the static iron core (12) of a hollow, be provided with moving iron core (14) in the static iron core (12), static iron core (12) upper and lower surface is provided with the opening (13) that is on the axis, moving iron core (14) is provided with the axis of guide (18), static iron core (12) is stretched out from opening (13) in the axis of guide (18) two ends, between moving iron core (14) and static iron core (12), be provided with closing coil (15) and switching winding (16), between closing coil (15) and switching winding (16), be provided with magnet of a specified duration (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136308 CN200986886Y (en) | 2006-12-08 | 2006-12-08 | Permanent magnet control mechanism vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136308 CN200986886Y (en) | 2006-12-08 | 2006-12-08 | Permanent magnet control mechanism vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986886Y true CN200986886Y (en) | 2007-12-05 |
Family
ID=38916345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620136308 Expired - Lifetime CN200986886Y (en) | 2006-12-08 | 2006-12-08 | Permanent magnet control mechanism vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986886Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465244B (en) * | 2007-12-17 | 2011-05-04 | 宁波市华安电力电气股份有限公司 | Longitudinal circuit breaker |
| CN102306589A (en) * | 2011-05-31 | 2012-01-04 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN107993883A (en) * | 2018-01-12 | 2018-05-04 | 刘素杰 | A kind of improved outdoor permanent magnetic vacuum circuit breaker |
| CN110401176A (en) * | 2019-06-25 | 2019-11-01 | 深圳供电局有限公司 | Zero line break protection device and its control method |
-
2006
- 2006-12-08 CN CN 200620136308 patent/CN200986886Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465244B (en) * | 2007-12-17 | 2011-05-04 | 宁波市华安电力电气股份有限公司 | Longitudinal circuit breaker |
| CN102306589A (en) * | 2011-05-31 | 2012-01-04 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN102306589B (en) * | 2011-05-31 | 2014-01-01 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN107993883A (en) * | 2018-01-12 | 2018-05-04 | 刘素杰 | A kind of improved outdoor permanent magnetic vacuum circuit breaker |
| CN107993883B (en) * | 2018-01-12 | 2019-03-26 | 福建德普乐能源科技有限公司 | A kind of improved outdoor permanent magnetic vacuum circuit breaker |
| CN110401176A (en) * | 2019-06-25 | 2019-11-01 | 深圳供电局有限公司 | Zero line break protection device and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
|
| EXPY | Termination of patent right or utility model |