CN102915870B - E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit - Google Patents
E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit Download PDFInfo
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- CN102915870B CN102915870B CN201210450187.6A CN201210450187A CN102915870B CN 102915870 B CN102915870 B CN 102915870B CN 201210450187 A CN201210450187 A CN 201210450187A CN 102915870 B CN102915870 B CN 102915870B
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Abstract
The invention relates to a circuit breaker of a mono-stability permanent magnet mechanism, and particularly relates to an E-shaped mono-stability permanent magnet mechanism with a closed magnetic circuit. The mechanism is characterized in that an outer yoke (5), a bottom cover (10), a static iron core (12) and a magnetic isolation ring (11) define an E-shaped structure, wherein a magnetic field short circuit gas gap (7) is arranged between the lower end face of the static iron core (12) and the bottom cover (10); and an annular tile-shaped magnet (6) is mounted between the static iron core (12) and the outer yoke (5). The E-shaped mono-stability permanent magnet mechanism with the closed magnetic circuit, provided by the invention, has the beneficial effects that a permanent magnet of the E-shaped mono-stability permanent magnet mechanism has a closed magnetic circuit both in a switching-off state and a switching-on states so that the reliability of the mono-stability permanent magnet mechanism is improved; moreover, through adoption of a movable iron core positioning and guiding measure based on a special structure design, the size of the permanent magnet mechanism is reduced, and the permanent magnet mechanism is more convenient to use and maintain.
Description
Technical field
The present invention relates to 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 of the present invention is a kind of of permanent magnet mechanism, and its groundwork principle is: Electromagnetic Drive, and permanent magnetism keeps; Concretely, exactly in carrying out on/off switch operating process, the electric current of passing to different directions to 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 to move up and down and produce the energy displacement output that splitting or integrating lock needs.Combined floodgate puts in place without mechanical lock buckle device, utilizes permanent magnet that permanent magnetic is provided completely, by moving stable being pull-in on static iron core ad-hoc location of iron core, thereby keeps reliably vacuum circuit-breaker "on" position.
In the E shape structure that traditional Monostable permanent magnetic mechanism adopts, its permanent magnet permanent magnet mechanism during in gate-dividing state magnetic circuit open a way completely, and the location of moving iron core and guiding be to utilize output shaft to extend permanent magnet mechanism top cover and bottom, rely on that location hole in the middle of the bottom of top realizes.The consequence of doing is like this: permanent magnet mechanism under gate-dividing state due to magnetic circuit open circuit, in being 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 permanent magnet mechanism complex structure, volume increases, and makes vacuum circuit breaker mechanism case safeguard narrow space, causes inconvenience.
Summary of the invention
The object of this invention 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 there is closed magnetic circuit under "on" position and keep stable state, dwindled the volume of permanent magnet mechanism simultaneously.
A kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft, on this output shaft, be respectively installed with moving iron core, static iron core, magnetic field shading ring and bottom, wherein in moving iron core, coil rack is installed, divide-shut brake coil is installed on coil rack, between moving iron core and bottom, outer yoke is also installed in addition, its special feature is: described outer yoke, bottom, static iron core and magnetic field shading ring form E shape structure; Between static iron core lower surface and bottom, be provided with magnetic field short circuit air gap, 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 one end of output shaft and moving iron core are threaded connection location, and its other end passes and extend out to bottom outside from upper self-lubricating guide sleeve, static iron core, lower self-lubricating guide sleeve.
Wherein coil rack material is polytetrafluoroethylene, and this coil rack and moving iron core middle part are slidably connected, thereby the motion of moving iron core is played to location and guide effect.
Wherein on divide-shut brake coil, be set with locating cover, this locating cover lower end is L-type structure, thereby coordinates to 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 invention has the beneficial effects as follows: 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 there is closed magnetic circuit under "on" position, improve the reliability of Monostable permanent magnetic mechanism, adopt moving iron core location and the guiding measure of special construction design simultaneously, dwindled the volume of permanent magnet mechanism, safeguarded, used convenient.
Accompanying drawing explanation
Accompanying drawing 1 is mechanism of the present invention "on" position schematic diagram;
Accompanying drawing 2 is mechanism of the present invention gate-dividing state schematic diagram.
Embodiment
As shown in Figure 1, 2, the present invention is a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft 8, on this output shaft 8, be respectively installed with moving iron core 1, static iron core 12, magnetic field shading ring 11 and bottom 10, 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 also installed in addition, described outer yoke 5, bottom 10, static iron core 12 and magnetic field shading ring 11 form E shape structure; Between static iron core 12 lower surfaces and bottom 10, be provided with magnetic field short circuit air gap 7, 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 one end of output shaft 8 and moving iron core 1 are threaded connection location, and its other end passes and extend out to bottom 10 outsides from upper self-lubricating guide sleeve 4, static iron core 12, lower self-lubricating guide sleeve 9.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 the motion of moving iron core 1 is played to location and guide effect.On divide-shut brake coil 3, be set with locating cover 2, these locating cover 2 lower ends are L-type structure, thereby coordinate with outer yoke 5 inner chamber step lower ends to divide-shut brake coil 3 location.
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 rare-earth Nd-Fe-B magnet.
Operation principle of the present invention is as follows:
The present invention is a kind of E shape Monostable permanent magnetic mechanism with closed magnetic circuit, the E shape structure being comprised of outer yoke 5, bottom 10, static iron core 12 and magnetic field shading ring 11 is done 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 between static iron core 12 lower surfaces and bottom 10, be designed with magnetic field short circuit air gap 7, 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 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 type magnet 6 magnetic fields be similar to short circuit, 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 watt type magnet 6 at permanent magnet mechanism in separating brake stable state at present.
Claims (6)
1. an E shape Monostable permanent magnetic mechanism with closed magnetic circuit, comprise output shaft (8), on this output shaft (8), be respectively installed with moving iron core (1), static iron core (12), magnetic field shading ring (11) and bottom (10), coil rack (13) is wherein 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 also installed in addition, it is characterized in that: described outer yoke (5), bottom (10), static iron core (12) and magnetic field shading ring (11) form E shape structure, between static iron core (12) lower surface and bottom (10), be provided with magnetic field short circuit air gap (7), 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).
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 one end of output shaft (8) and moving iron core (1) are threaded connection location, and its other end passes and extend out to bottom (10) outside from upper self-lubricating guide sleeve (4), static iron core (12), lower self-lubricating guide sleeve (9).
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, this coil rack (13) is slidably connected with moving iron core (1) middle part, thereby the motion of moving iron core (1) is played to location and guide effect.
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 on divide-shut brake coil (3), be set with locating cover (2), this locating cover (2) lower end is L-type structure, thereby coordinates 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, 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 |
|---|---|---|---|
| CN201210450187.6A CN102915870B (en) | 2012-11-13 | 2012-11-13 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210450187.6A CN102915870B (en) | 2012-11-13 | 2012-11-13 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
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| Publication Number | Publication Date |
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| CN102915870A CN102915870A (en) | 2013-02-06 |
| CN102915870B true CN102915870B (en) | 2014-11-26 |
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| CN201210450187.6A Active CN102915870B (en) | 2012-11-13 | 2012-11-13 | E-shaped mono-stability permanent magnet mechanism with closed magnetic circuit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2020631C1 (en) * | 1992-04-02 | 1994-09-30 | Малое внедренческое предприятие "Таврида Электрик" | Tel modular series vacuum circuit breaker |
| EP1225609A2 (en) * | 2001-01-18 | 2002-07-24 | Hitachi, Ltd. | Electromagnet and actuating mechanism for switch device |
| CN2879399Y (en) * | 2005-12-22 | 2007-03-14 | 浙江日升电器有限公司 | Permanent-magnetic operating mechanism for high-voltage grade vacuum switch |
| EP1618577B1 (en) * | 2003-03-26 | 2009-03-25 | Tavrida Electric Industrial Group | Vacuum circuit breaker |
| CN201383467Y (en) * | 2009-02-19 | 2010-01-13 | 陕西中恒电气有限公司 | Monostable and monocoil permanent magnetic mechanism |
| CN202473787U (en) * | 2011-12-23 | 2012-10-03 | 河南瑞特电气有限公司 | Novel permanent-magnet driving device |
| CN202940181U (en) * | 2012-11-13 | 2013-05-15 | 宁夏力成电气集团有限公司 | E-shaped monostable permanent magnetic mechanism with closed magnetic circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422037A (en) * | 1990-05-15 | 1992-01-27 | Mitsubishi Electric Corp | Electromagnetic switch device |
| NL1023381C2 (en) * | 2003-05-09 | 2004-11-15 | Eaton Electric Nv | Electromagnetic actuator. |
-
2012
- 2012-11-13 CN CN201210450187.6A patent/CN102915870B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2020631C1 (en) * | 1992-04-02 | 1994-09-30 | Малое внедренческое предприятие "Таврида Электрик" | Tel modular series vacuum circuit breaker |
| EP1225609A2 (en) * | 2001-01-18 | 2002-07-24 | Hitachi, Ltd. | Electromagnet and actuating mechanism for switch device |
| EP1618577B1 (en) * | 2003-03-26 | 2009-03-25 | Tavrida Electric Industrial Group | Vacuum circuit breaker |
| CN2879399Y (en) * | 2005-12-22 | 2007-03-14 | 浙江日升电器有限公司 | Permanent-magnetic operating mechanism for high-voltage grade vacuum switch |
| CN201383467Y (en) * | 2009-02-19 | 2010-01-13 | 陕西中恒电气有限公司 | Monostable and monocoil permanent magnetic mechanism |
| CN202473787U (en) * | 2011-12-23 | 2012-10-03 | 河南瑞特电气有限公司 | Novel permanent-magnet driving device |
| CN202940181U (en) * | 2012-11-13 | 2013-05-15 | 宁夏力成电气集团有限公司 | E-shaped monostable permanent magnetic mechanism with closed magnetic circuit |
Non-Patent Citations (1)
| Title |
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| JP平4-22037A 1992.01.27 * |
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| CN102915870A (en) | 2013-02-06 |
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Denomination of invention: An E-shape monostable permanent magnet mechanism with closed magnetic circuit Effective date of registration: 20201231 Granted publication date: 20141126 Pledgee: China Construction Bank Corporation Yinchuan Xixia sub branch Pledgor: NINGXIA LICHENG GROUP Co.,Ltd. Registration number: Y2020640000006 |
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Effective date of registration: 20230530 Granted publication date: 20141126 |