CN201345311Y - Unicoil monostabillity permanent magnetism operating mechanism - Google Patents
Unicoil monostabillity permanent magnetism operating mechanism Download PDFInfo
- Publication number
- CN201345311Y CN201345311Y CNU2008202145081U CN200820214508U CN201345311Y CN 201345311 Y CN201345311 Y CN 201345311Y CN U2008202145081 U CNU2008202145081 U CN U2008202145081U CN 200820214508 U CN200820214508 U CN 200820214508U CN 201345311 Y CN201345311 Y CN 201345311Y
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- closing coil
- operating mechanism
- permanent magnetism
- unicoil
- permanent magnet
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Abstract
The utility model relates to a unicoil monostabillity permanent magnetism operating mechanism which has high reliability and can perfectly cooperate with the body of a high-voltage circuit breaker so as to improve the performance of the high-voltage circuit breaker. The unicoil monostabillity permanent magnetism operating mechanism comprises a closing coil, a permanent magnet, a magnetic yoke and a movable core, wherein the closing coil and the permanent magnet enclosing the movable core are arranged between the movable core and the magnetic yoke; the permanent magnet is positioned above the closing coil; and a pigtail is arranged on the closing coil. As an improvement of the utility model, the unicoil monostabillity permanent magnetism operating mechanism also comprises a conductive magnet positioned at the inner side of the permanent magnetism, wherein the conductive magnet encloses the movable core; preferably, the conductive magnet is filled between the permanent magnet and the movable core; and the pigtail of the closing coil can intercept one fourth to one half of the number of windings of the closing coil. The utility model has the advantages of fewer parts, high reliability, little energy consumption, small closing magnetizing current, favorable cooperation with a permanent driver, short time for separating brake, capability of obtaining larger speed for separating brake as well as convenient installation, maintenance and debugging.
Description
Technical field
The utility model relates to a kind of unicoil Monostable permanent magnetism operating mechanism.
Background technology
For many years, the unicoil Monostable permanent magnetism operating mechanism is simple in structure because of it, life-span is long, the reliability height, can operate with the small-power AC power, the fine coupling of the spring load characteristic of power producing characteristics and vacuum circuit-breaker can provide little closing speed and higher opening velocity, presses on the vacuum circuit-breaker of grade in being widely used in.Along with the development of China's electric utility, electric power system is more and more higher to the requirement of vacuum circuit-breaker, and promptly branch, the combined floodgate characterisitic parameter to the unicoil Monostable permanent magnetism operating mechanism requires harsh more.Company improves the unicoil Monostable permanent magnetism operating mechanism one after another both at home and abroad, to improve its performance.
The utility model content
The utility model provides a kind of unicoil Monostable permanent magnetism operating mechanism, and the reliability height reaches perfect cooperation with the body of primary cut-out, and then improves the performance of primary cut-out.
Described unicoil Monostable permanent magnetism operating mechanism comprises closing coil, permanent magnet, yoke, moving unshakable in one's determination, is provided with between moving iron core and yoke around moving closing coil and permanent magnet unshakable in one's determination, and permanent magnet is positioned at the closing coil top, and closing coil is provided with tap.
As improvement of the present utility model, also comprise the magnetic inductive block that is positioned at the permanent magnet inboard, described magnetic inductive block is around moving unshakable in one's determination.Preferred magnetic inductive block is filled between permanent magnet and the moving iron core.
The tap of described closing coil can intercept 1/4～1/2 of the closing coil number of turn.
The utility model is on the basis of common unicoil Monostable permanent magnetism operating mechanism, tap is set on closing coil, when permanent-magnet manipulating mechanism carries out sub-switching operation, the magnetic field superposition that the magnetic field that produces needs only and permanent magnet produces, and then the electromagnetic force and the permanent magnetism power that produce offset just passable, therefore only need the part of closing coil to feed electric current, with respect to using whole closing coil, inductance in the circuit is less, the electric current rate of climb is fast, thereby make contact of breaker obtain opening velocity faster, opening time is also corresponding simultaneously reduces.
Advantage of the present utility model is as follows: 1. parts are few, the reliability height, and power consumption is few.2. the combined floodgate exciting curent is little, with the permanent magnet drive no-float.3. opening time is littler, can obtain bigger opening velocity.4. the installation and maintenance debugging is convenient.
Description of drawings
Fig. 1 is the utility model internal structure profile
Among the figure, 1 tripping spring, 2 non-magnet materials, 3 permanent magnets, 4 closing coils, 5 taps, 6 yokes, 7 is moving unshakable in one's determination, 8 magnetic inductive blocks, 9 drive rods.
Fig. 2 is for joining primary cut-out structure chart-"on" position of the present utility model;
Fig. 3 is for joining primary cut-out structure chart-gate-dividing state of the present utility model.
Among the figure, 10 primary cut-out arc control device, 11 fixed contacts, 12 moving contacts, 13 connecting levers.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
The utility model internal structure as shown in Figure 1, comprise tripping spring 1, closing coil 4, permanent magnet 3, yoke 6, moving iron core 7, magnetic inductive block 8, drive rod 9, non-magnet material 2, moving iron core 7 and 6 settings of yoke are around moving unshakable in one's determination 7 closing coil 4 and permanent magnet 3, permanent magnet 3 is positioned at closing coil 4 tops, and closing coil 4 is provided with tap 5.Be equipped with selector switch in closing coil 4 and the tap 5.Tripping spring 1 is in topmost, and an end is connected with fixed mount, and the other end connects with drive rod 9; Yoke 6 comprises upper end cover, and non-magnet material 2 is a nylon block, is filled in yoke 6 upper end cover bottoms, plays non-magnetic conduction effect; Magnetic inductive block 8 is filled between permanent magnet 3 and moving unshakable in one's determination 7, makes magnetic circuit even.Moving iron core 7 is moving components unique in the entire mechanism, generally adopts low-carbon steel material, and drive rod 9 links together with moving unshakable in one's determination 7, and they make circuit breaker change at separating brake and between closing a floodgate.
For the ease of analyzing, Fig. 2 has provided the structure diagram that unicoil Monostable permanent magnetism operating mechanism shown in Fig. 1 is connected with the primary cut-out body with Fig. 3.As shown in Figure 2, moving contact 12 and fixed contact 11 contact, when not having electric current to pass through in the closing coil of unicoil Monostable permanent magnetism operating mechanism, permanent magnet 3, the low magnetoimpedance passage that utilizes moving unshakable in one's determination 7, yoke 6 and magnetic inductive block 8 to provide will move unshakable in one's determination 7, drive rod 9 and remain on the bottom.This moment, drive rod 9 made primary cut-out remain on closing position by connecting lever 13.
When giving unicoil Monostable permanent magnetism operating mechanism separating brake actuating signal, two leads of tap 5 feed reverse current, and 1/3 of the intercepting closing coil number of turn produces magnetomotive force.The magnetic field that the magnetic field of tap 5 generations and permanent magnet 3 produce superposes on moving iron core, and then the downward permanent magnetism power of upwards electromagnetic force that produces and permanent magnet 3 generations interacts.When electromagnetic force and permanent magnetism power are cancelled out each other, tripping spring 1 produces pulling force upwards greater than moving unshakable in one's determination 7 downward gravity and frictional force,, under the effect of tripping spring pulling force with certain speed drive connecting lever 13 and moving contact 12 move downward together with drive rod 9 this moment moving unshakable in one's determination 7.This moment, the primary cut-out contact was moved to the separating brake position by closing position.
When moving unshakable in one's determination 7 of unicoil Monostable permanent magnetism operating mechanism moves to the upper end (as shown in Figure 3), the primary cut-out contact is in the separating brake position.The closing coil 4 and the tap 5 of mechanism do not have electric current to pass through, this moment the touch spring of primary cut-out and tripping spring 1 will move with joint efforts unshakable in one's determination 7 and drive rod 9 remain on the upper end, this moment, connecting lever 13 made contact of breaker remain on the separating brake position.
When giving unicoil Monostable permanent magnetism operating mechanism feed motion signal, closing coil 4 feeds forward current, produces magnetomotive force.The magnetic field superposition that magnetic field that closing coil 4 produces and permanent magnet 3 produce.When electric current reaches certain value, closing coil 4 produces the pulling force that downward electromagnetic force makes progress greater than tripping spring 1, move downward with certain speed drive connecting lever 13 and moving contact 12 together with drive rod 9 this moment moving unshakable in one's determination 7, and this moment, the primary cut-out contact was moved to closing position by the separating brake position.
Claims (7)
1, a kind of unicoil Monostable permanent magnetism operating mechanism, comprise closing coil, permanent magnet, yoke, moving unshakable in one's determination, be provided with between moving iron core and yoke around moving closing coil and permanent magnet unshakable in one's determination, permanent magnet is positioned at the closing coil top, it is characterized in that closing coil is provided with tap.
2, unicoil Monostable permanent magnetism operating mechanism as claimed in claim 1 is characterized in that also comprising the magnetic inductive block that is positioned at the permanent magnet inboard, and described magnetic inductive block is around moving unshakable in one's determination.
3, unicoil Monostable permanent magnetism operating mechanism as claimed in claim 2 is characterized in that magnetic inductive block is filled between permanent magnet and the moving iron core.
4, as each described unicoil Monostable permanent magnetism operating mechanism among the claim 1-3, it is characterized in that also comprising non-magnet material, described yoke comprises the yoke upper end cover, and non-magnet material is filled in yoke upper end cover bottom.
5, as each described unicoil Monostable permanent magnetism operating mechanism among the claim 1-3, it is characterized in that the closing coil tap can intercept 1/4～1/2 of the closing coil number of turn.
6, unicoil Monostable permanent magnetism operating mechanism as claimed in claim 5 is characterized in that the tap of closing coil can intercept 1/3 of the closing coil number of turn.
7, unicoil Monostable permanent magnetism operating mechanism as claimed in claim 1 is characterized in that being equipped with selector switch in closing coil and the tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145081U CN201345311Y (en) | 2008-12-19 | 2008-12-19 | Unicoil monostabillity permanent magnetism operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145081U CN201345311Y (en) | 2008-12-19 | 2008-12-19 | Unicoil monostabillity permanent magnetism operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201345311Y true CN201345311Y (en) | 2009-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202145081U Expired - Fee Related CN201345311Y (en) | 2008-12-19 | 2008-12-19 | Unicoil monostabillity permanent magnetism operating mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN201345311Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068482A (en) * | 2017-06-16 | 2017-08-18 | 沈阳工业大学 | It is a kind of to rotate the vacuum circuit breaker cut-off |
| CN107123568A (en) * | 2017-06-16 | 2017-09-01 | 沈阳工业大学 | A kind of integral vacuum breaker drives mechanism with Non-contact Magnetic |
| CN112103130A (en) * | 2020-10-13 | 2020-12-18 | 广东电网有限责任公司广州供电局 | Circuit breaker |
-
2008
- 2008-12-19 CN CNU2008202145081U patent/CN201345311Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068482A (en) * | 2017-06-16 | 2017-08-18 | 沈阳工业大学 | It is a kind of to rotate the vacuum circuit breaker cut-off |
| CN107123568A (en) * | 2017-06-16 | 2017-09-01 | 沈阳工业大学 | A kind of integral vacuum breaker drives mechanism with Non-contact Magnetic |
| CN107068482B (en) * | 2017-06-16 | 2019-08-23 | 沈阳工业大学 | It is a kind of to rotate the vacuum circuit breaker cut-off |
| CN112103130A (en) * | 2020-10-13 | 2020-12-18 | 广东电网有限责任公司广州供电局 | Circuit breaker |
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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: 20091111 Termination date: 20111219 |