CN202940181U - E-shaped monostable permanent magnetic mechanism with closed magnetic circuit - Google Patents
E-shaped monostable permanent magnetic mechanism with closed magnetic circuit Download PDFInfo
- Publication number
- CN202940181U CN202940181U CN 201220593346 CN201220593346U CN202940181U CN 202940181 U CN202940181 U CN 202940181U CN 201220593346 CN201220593346 CN 201220593346 CN 201220593346 U CN201220593346 U CN 201220593346U CN 202940181 U CN202940181 U CN 202940181U
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- iron core
- permanent magnetic
- monostable permanent
- shape
- static iron
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Abstract
The utility model relates to a vacuum circuit breaker of a monostable permanent magnetic mechanism, especially to an E-shaped monostable permanent magnetic mechanism with a closed magnetic circuit. The E-shaped monostable permanent magnetic mechanism is characterized in that an outer magnet yoke (5), a bottom cover (10), a static iron core (12) and a magnetic field isolating ring (11) compose an E-shaped structure, a magnetic field short circuit air gap (7) is arranged between a lower end face of the static iron core (12) and the bottom cover (10), and an annular tile-type magnet (6) is mounted between the static iron core (12) and the outer magnet yoke (5). The utility model has the following beneficial effects: the E-shaped monostable permanent magnetic mechanism with the closed magnetic circuit is provided in the utility model, a permanent magnet of the E-shaped monostable permanent magnetic mechanism has the closed magnetic circuit in opening and closing states, reliability of the monostable permanent magnetic mechanism is improved, and through utilization of positioning and guiding of a movable iron core with a specially designed structure, the permanent magnetic mechanism has a reduced size and is more convenient to maintain and use.
Description
Technical field
The utility model relates to the Monostable permanent magnetic mechanism vacuum circuit-breaker, especially a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit.
Background technology
Along with the development of permanent magnetic actuator vacuum circuit breaker in middle pressure field, and the raising day by day of permanent magnetism rare earth material and pure iron material property, permanent magnet mechanism more and more obtains people's concern.Monostable permanent magnetic mechanism described in the utility model is a kind of of permanent magnet mechanism, and its groundwork principle is: Electromagnetic Drive, and permanent magnetism keeps; Concretely, exactly in carrying out the on/off switch operating process, the electric current of passing to different directions for the on/off switch coil is produced the electromagnetic force of a different directions by the electric current of this different directions, drive moving iron core move up and down produce close, energy displacement output that separating brake needs.Combined floodgate puts in place and need not the mechanical lock buckle device, utilizes permanent magnet that permanent magnetic is provided fully, with moving stable being pull-in on the static iron core ad-hoc location of iron core, thereby keeps reliably the vacuum circuit-breaker "on" position.
In the E shape structure that traditional Monostable permanent magnetic mechanism adopts, its permanent magnet magnetic circuit when permanent magnet mechanism is in gate-dividing state is opened a way fully, and the location of moving iron core and guiding be to utilize output shaft to extend permanent magnet mechanism top cover and bottom, relies on that location hole in the middle of the bottom of top realizes.The consequence of doing like this is: permanent magnet mechanism under gate-dividing state due to magnetic circuit open circuit, being in is a kind of unsure state, easily be subject to the impact of extraneous factor and malfunction, simultaneously due to the Functional Design of locating and leading, cause the permanent magnet mechanism complex structure, volume increases, and makes the vacuum circuit breaker mechanism case safeguard narrow space, causes inconvenience.
The utility model content
The purpose of this utility model is to provide a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, thereby the permanent magnet that can realize E shape Monostable permanent magnetic mechanism minute, all have closed magnetic circuit under "on" position and keep stable state, dwindled simultaneously the volume of permanent magnet mechanism.
A kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft, be respectively installed with moving iron core, static iron core, magnetic field shading ring and bottom on this output shaft, wherein in moving iron core, coil rack is installed, the divide-shut brake coil is installed on coil rack, between moving iron core and bottom, outer yoke is installed also in addition, its special feature is: described outer yoke, bottom, static iron core and magnetic field shading ring consist of E shape structure; Be provided with magnetic field short circuit air gap between static iron core lower surface and bottom, and watt type magnet of ring-type is installed between static iron core and outer yoke, thereby can form closed magnetic circuit by above-mentioned magnetic field short circuit air gap.
Wherein an end of output shaft and moving iron core are threaded connection the location, and its other end passes from upper self-lubricating guide sleeve, static iron core, lower self-lubricating guide sleeve and extend out to the bottom outside.
Wherein the coil rack material is polytetrafluoroethylene, is slidably connected in the middle part of this coil rack and moving iron core, thereby location and guide effect are played in the motion of moving iron core.
Wherein be set with locating cover on the divide-shut brake coil, this locating cover lower end is the L-type structure, thereby coordinates to the divide-shut brake coil location with outer yoke inner chamber step lower end.
Wherein watt type magnet is positioned at the enclosure space that magnetic field shading ring, outer yoke, static iron core, divide-shut brake coil, locating cover and coil rack form.
Wherein watt type magnet is rare-earth Nd-Fe-B magnet.
The beneficial effects of the utility model are: a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit is provided, the permanent magnet of realizing E shape Monostable permanent magnetic mechanism minute, all have closed magnetic circuit under "on" position, improve the reliability of Monostable permanent magnetic mechanism, adopt simultaneously moving iron core location and the guiding measure of special construction design, dwindled the volume of permanent magnet mechanism, safeguarded, used convenient.
Description of drawings
Accompanying drawing 1 is mechanism of the present utility model "on" position schematic diagram;
Accompanying drawing 2 is mechanism of the present utility model gate-dividing state schematic diagram.
Embodiment
As shown in Figure 1, 2, the utility model is a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft 8, be respectively installed with moving iron core 1, static iron core 12, magnetic field shading ring 11 and bottom 10 on this output shaft 8, wherein in moving iron core 1, coil rack 13 is installed, divide-shut brake coil 3 is installed on coil rack 13, between moving iron core 1 and bottom 10, outer yoke 5 is installed also in addition, described outer yoke 5, bottom 10, static iron core 12 and magnetic field shading ring 11 consist of E shape structure; Be provided with magnetic field short circuit air gap 7 between static iron core 12 lower surfaces and bottom 10, and watt type magnet 6 of ring-type is installed between static iron core 12 and outer yoke 5, thereby can form closed magnetic circuit by above-mentioned magnetic field short circuit air gap 7.
Wherein an end of output shaft 8 and moving iron core 1 are threaded connection the location, and its other end passes from upper self-lubricating guide sleeve 4, static iron core 12, lower self-lubricating guide sleeve 9 and extend out to bottom 10 outsides.Coil rack 13 materials are polytetrafluoroethylene, and this coil rack 13 is slidably connected (being both matched in clearance) with moving iron core 1 middle part, thereby location and guide effect are played in the motion of moving iron core 1.Be set with locating cover 2 on divide-shut brake coil 3, this locating cover 2 lower ends are the L-type structure, thereby coordinate to divide-shut brake coil 3 location with outer yoke 5 inner chamber step lower ends.
Watt type magnet 6 is positioned at the enclosure space of magnetic field shading ring 11, outer yoke 5, static iron core 12, divide-shut brake coil 3 and locating cover 2, coil rack 13 compositions in addition, and watt type magnet 6 adopts the rare-earth Nd-Fe-B magnet.
Operation principle of the present utility model is as follows:
The utility model is a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, by the E shape structure that outer yoke 5, bottom 10, static iron core 12 and magnetic field shading ring 11 form, do relative motion up or down with this as the moving iron core 1 of E shape structure under the adaptive directed effect of output shaft 8; And be designed with magnetic field short circuit air gap 7 between static iron core 12 lower surfaces and bottom 10, under above-mentioned moving iron core 1 makes progress running status relatively (permanent magnet mechanism gate-dividing state), watt type magnet 6 can form closed magnetic circuit by magnetic field short circuit air gap 7;
As shown in Figure 1 and Figure 2, above-mentioned moving iron core 1 moves upward distance relatively over after the vacuum circuit-breaker compression travel, the magnetic resistance of described short circuit air gap 7 is more and more less than the magnetic resistance of 5 of moving iron core 1 and static iron core 12, outer yokes, make watt approximate short circuit in type magnet 6 magnetic fields, not only weakened the magnetic field force of 5 of moving iron core 1 and static iron core 12, outer yokes, make the electromagnetic force of divide-shut brake coil 3 accelerate to move upward in moving iron core 1, effectively promoted opening velocity, and can guarantee that watt type magnet 6 is in separating brake stable state at present at permanent magnet mechanism.
Claims (6)
1. E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft (8), be respectively installed with moving iron core (1) on this output shaft (8), static iron core (12), magnetic field shading ring (11) and bottom (10), coil rack (13) wherein is installed in moving iron core (1), divide-shut brake coil (3) is installed on coil rack (13), between moving iron core (1) and bottom (10), outer yoke (5) is installed also in addition, it is characterized in that: described outer yoke (5), bottom (10), static iron core (12) and magnetic field shading ring (11) consist of E shape structure, be provided with magnetic field short circuit air gap (7) between static iron core (12) lower surface and bottom (10), and watt type magnet (6) of ring-type is installed, thereby can form closed magnetic circuit by above-mentioned magnetic field short circuit air gap (7) between static iron core (12) and outer yoke (5).
2. a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit as claimed in claim 1, it is characterized in that: wherein an end of output shaft (8) and moving iron core (1) are threaded connection the location, and its other end passes from upper self-lubricating guide sleeve (4), static iron core (12), lower self-lubricating guide sleeve (9) and extend out to bottom (10) outside.
3. a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit as claimed in claim 1, it is characterized in that: wherein coil rack (13) material is polytetrafluoroethylene, be slidably connected in the middle part of this coil rack (13) and moving iron core (1), thereby location and guide effect are played in the motion of moving iron core (1).
4. a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit as claimed in claim 1, it is characterized in that: wherein be set with locating cover (2) on divide-shut brake coil (3), this locating cover (2) lower end is the L-type structure, thereby coordinates in order to divide-shut brake coil (3) is located with outer yoke (5) inner chamber step lower end.
5. a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit as claimed in claim 1 is characterized in that: wherein watt type magnet (6) is positioned at the enclosure space that magnetic field shading ring (11), outer yoke (5), static iron core (12), divide-shut brake coil (3), locating cover (2) and coil rack (13) form.
6. a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit as claimed in claim 1, it is characterized in that: wherein watt type magnet (6) is rare-earth Nd-Fe-B magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593346 CN202940181U (en) | 2012-11-13 | 2012-11-13 | E-shaped monostable permanent magnetic mechanism with closed magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593346 CN202940181U (en) | 2012-11-13 | 2012-11-13 | E-shaped monostable permanent magnetic mechanism with closed magnetic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940181U true CN202940181U (en) | 2013-05-15 |
Family
ID=48324406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220593346 Withdrawn - After Issue CN202940181U (en) | 2012-11-13 | 2012-11-13 | E-shaped monostable permanent magnetic mechanism with closed magnetic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915870A (en) * | 2012-11-13 | 2013-02-06 | 宁夏力成电气集团有限公司 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
| WO2017107455A1 (en) * | 2016-04-29 | 2017-06-29 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay moving core guide mechanism |
-
2012
- 2012-11-13 CN CN 201220593346 patent/CN202940181U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915870A (en) * | 2012-11-13 | 2013-02-06 | 宁夏力成电气集团有限公司 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
| CN102915870B (en) * | 2012-11-13 | 2014-11-26 | 宁夏力成电气集团有限公司 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
| WO2017107455A1 (en) * | 2016-04-29 | 2017-06-29 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay moving core guide mechanism |
| JP2018503213A (en) * | 2016-04-29 | 2018-02-01 | 浙江英洛華新能源科技有限公司 | Movable core guide mechanism for high-voltage DC relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20141126 |
|
| RGAV | Abandon patent right to avoid regrant |