CN105428151A - High-voltage bistable permanent magnet actuator with permanent magnets placed in movable iron core and switching off method of high-voltage bistable permanent magnet actuator - Google Patents
High-voltage bistable permanent magnet actuator with permanent magnets placed in movable iron core and switching off method of high-voltage bistable permanent magnet actuator Download PDFInfo
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- CN105428151A CN105428151A CN201510980116.0A CN201510980116A CN105428151A CN 105428151 A CN105428151 A CN 105428151A CN 201510980116 A CN201510980116 A CN 201510980116A CN 105428151 A CN105428151 A CN 105428151A
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- iron core
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- dynamic iron
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
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Abstract
The invention discloses a high-voltage bistable permanent magnet actuator with permanent magnets placed in a movable iron core and a switching off method of the high-voltage bistable permanent magnet actuator. The high-voltage bistable permanent magnet actuator comprises an upper end static iron core, a lower end static iron core, a switching on coil, a switching off coil, an auxiliary switching off coil, an auxiliary switching on coil, an inner movable iron core body, the permanent magnets, outer movable iron core bodies, and a guide rod, wherein the switching on coil and the switching off coil are arranged in the upper end static iron core and the lower end static iron core; the auxiliary switching off coil and the auxiliary switching on coil are arranged outside the upper end static iron core and the lower end static iron core; the guide rod is fixedly connected with the movable iron core and penetrates through the upper end static iron core and the lower end static iron core in a sliding manner; the inner and outer movable iron core bodies are fixed with each other through fixing pins; the permanent magnets are embedded between the inner movable iron core body and the outer movable iron core bodies. As a permanent magnet latching part is arranged on the side surface of the actuator, the height is greatly lowered while the diameter increase is relatively low, that is, the integral size of the actuator is reduced; the auxiliary switching off coil and the auxiliary switching on coil are added, so that the reaction time of switching off/switching on is shortened; as the movable iron core adopts a symmetric U-shaped structure, after switching off/switching on is started, a magnetic air gap is reduced at a rate twice of the stroke decreasing rate, that is, the acceleration of switching off/switching on is accelerated.
Description
Technical field
The present invention relates to a kind of its separating brake method of high pressure bi-stable permanent magnetism operating mechanism that permanent magnetism is placed in dynamic iron core, belong to high-pressure vacuum breaker field.
Background technology
Vacuum circuit-breaker is little, lightweight with its volume, be applicable to frequent operation, advantage that arc extinguishing need not overhaul, captured rapidly medium voltage breaker market, and developed to high pressure field further.Operating mechanism that vacuum circuit-breaker is joined has electromagnetic type, spring and magneto three kinds usually.Wherein permanent magnet drive mechanism rely on that it is highly reliable, low energy consumption, non-maintaining, and can the plurality of advantages such as simultaneous operation be realized, day by day cause the concern of people.The requirement that high-pressure vacuum breaker splits distance is comparatively large, and this just requires that operating mechanism has higher divide-shut brake speed.And the permanent-magnet manipulating mechanism that traditional electromagnetic drive mechanism is separated with permanent magnet holding mechanism, because the outer of permanent magnet holding mechanism is carried, makes the height of permanent-magnet manipulating mechanism greatly increase, thus increases the overall dimensions of mechanism.Meanwhile, the permanent magnetism that divide-shut brake keeps use two pieces different, makes permanent magnetism consumption can not reach minimum.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of its separating brake method of high pressure bi-stable permanent magnetism operating mechanism that permanent magnetism is placed in dynamic iron core, increase the acceleration of dynamic iron core motion in divide-shut brake process, reduce the overall volume being separated magnetic path type permanent-magnet manipulating mechanism simultaneously, and substantially reduce permanent magnetism consumption.
The technical solution used in the present invention is: a kind of permanent magnetism is placed in the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core, comprise upper end static iron core, static iron core assisted in upper end, static iron core, switching winding, closing coil are assisted in lower end static iron core, lower end, auxiliary switching winding, auxiliary switching-in coil, dynamic iron core, permanent magnet and guide rod;
Upper end static iron core and lower end static iron core is respectively arranged with above and below described dynamic iron core, dynamic iron core comprises interior dynamic iron core and outer dynamic iron core, described permanent magnet is embedded between interior dynamic iron core and outer dynamic iron core, described guide rod is fixedly connected with dynamic iron core, the centre bore of upper end static iron core and lower end static iron core is stretched out at guide rod two ends, and is slidably connected with upper end static iron core, lower end static iron core;
Described upper end static iron core is the fluted body that Open Side Down, and the radial thickness of its two side is less than the axial width of transverse arm; Described closing coil is placed in the groove of upper end static iron core, is looped around the outside of interior dynamic iron core main body; Described upper end static iron core lateral wall is provided with upper end and assists static iron core; Described auxiliary switching winding is arranged at upper end static iron core lateral wall and upper end is assisted between static iron core;
Described lower end static iron core is the fluted body of opening upwards, and the radial thickness of its two side is less than the axial width of transverse arm; Described switching winding is placed in the groove of lower end static iron core, is looped around the outside of interior dynamic iron core main body; Described lower end static iron core lateral wall is provided with lower end and assists static iron core; Described auxiliary switching-in coil is arranged at lower end static iron core lateral wall and lower end is assisted between static iron core.
Preferred: the meridian plane of described interior dynamic iron core is two laterally zygomorphic U-shaped structures, and its lateral wall length is less than inner side main body length; The lateral wall of described interior dynamic iron core and the madial wall of described outer dynamic iron core have groove, and for putting permanent magnet, and described groove is near the upper surface of interior dynamic iron core lateral wall and outer dynamic iron core.
Preferred: described permanent magnet is embedded in the groove of interior dynamic iron core and outer dynamic iron core; Described outer dynamic iron core is made up of two pieces of symmetry, and itself and interior dynamic iron core is fixed with four groups of steady pins symmetrically; Between described interior dynamic iron core and outer dynamic iron core, the radial width of air gap is less than upper end static iron core sidewall and upper end assists the radial width of air gap between static iron core and lower end static iron core sidewall and lower end to assist the radial width of air gap between static iron core.
A kind of above-mentioned permanent magnetism is placed in the separating brake method of the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core: when permanent-magnet manipulating mechanism receives sub-gate signal, a pulse current is passed in auxiliary switching winding, the electromagnetic field that auxiliary switching winding produces is contrary with the permanent magnetic field direction that permanent magnet produces, and the closing retention force that iron core is subject to reduces rapidly; Meanwhile, pass into an electric current in switching winding, along with electric current increases, the gravity sum of downward electromagnetic force and counter-force and moving component is greater than the confining force suffered by dynamic iron core suffered by the dynamic iron core, and dynamic iron core moves downward; When dynamic iron core move to contact with lower end static iron core time, dynamic iron core remains on open position under permanent magnet effect.
Beneficial effect: a kind of permanent magnetism provided by the invention is placed in the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core, compared to existing technology, has following beneficial effect:
Permanent magnetism retaining part is arranged on mechanism side by the present invention, substantially reduces height and diameter increase is relatively little, thus reduces the overall dimensions of mechanism.The reaction time of divide-shut brake is shortened by increasing auxiliary separating closing coil.Dynamic iron core adopts symmetrical U-shaped structure, and after divide-shut brake starts, the speed reduction that magnetic air gap reduces to double stroke, improves divide-shut brake acceleration.Permanent magnet is placed in dynamic iron core, makes divide-shut brake keep sharing same permanent magnet, substantially reduce the consumption of permanent magnetism; Permanent magnet and the distance of dynamic upper surface unshakable in one's determination are less than permanent magnet and the distance of dynamic lower surface unshakable in one's determination simultaneously, reduce separating brake confining force, reduce permanent magnetism consumption further, provide cost savings while increasing closing retention force.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention at closing position;
Fig. 2 is that the present invention moves iron core schematic diagram;
Fig. 3 is the magnetic flux path figure of the present invention at open position;
Fig. 4 is the magnetic flux path figure of the present invention at closing position;
Magnetic flux path figure when Fig. 5 is separating brake process of the present invention startup;
In figure: move iron core, 6 outer dynamic iron core, 7 permanent magnets, 8 closing coils, 9 switching windings in 1 guide rod, 2 upper end static iron cores, 3 lower end static iron cores, 4 dynamic iron cores, 5, static iron core is assisted in 10 upper ends, static iron core is assisted in 11 lower ends, 12 auxiliary switching winding, 13 auxiliary switching-in coils, 14 steady pins; Dotted line is the magnetic line of force that coil produces, and solid line is the magnetic line of force that permanent magnet produces.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As shown in Figure 1-2, permanent magnetism is placed in a high pressure bi-stable permanent magnetism operating mechanism for dynamic iron core, comprise upper end static iron core 2, static iron core 10 assisted in upper end, static iron core 11, switching winding 9, closing coil 8 are assisted in lower end static iron core 3, lower end, auxiliary switching winding 12, auxiliary switching-in coil 13, dynamic iron core 4, permanent magnet 7 and guide rod 1;
Upper end static iron core 2 and lower end static iron core 3 is respectively arranged with above and below described dynamic iron core 4, dynamic iron core 4 comprises interior dynamic iron core 5 and outer dynamic iron core 6, described permanent magnet 7 is embedded between interior dynamic iron core 5 and outer dynamic iron core 6, described guide rod 1 is fixedly connected with dynamic iron core 4, the centre bore of upper end static iron core 2 and lower end static iron core 3 is stretched out at guide rod 1 two ends, and is slidably connected with upper end static iron core 2, lower end static iron core 3;
Described upper end static iron core 2 is the fluted body that Open Side Down, and the radial thickness of its two side is less than the axial width of transverse arm; Described closing coil 8 is placed in the groove of upper end static iron core 2, is looped around the outside of interior dynamic iron core 5 main body; Described upper end static iron core 2 lateral wall is provided with upper end and assists static iron core 10; Described auxiliary switching winding 12 is arranged at upper end static iron core 2 lateral wall and upper end is assisted between static iron core 10;
Described lower end static iron core 3 is the fluted body of opening upwards, and the radial thickness of its two side is less than the axial width of transverse arm; Described switching winding 9 is placed in the groove of lower end static iron core 3, is looped around the outside of interior dynamic iron core 5 main body; Described lower end static iron core 3 lateral wall is provided with lower end and assists static iron core 11; Described auxiliary switching-in coil 13 is arranged at lower end static iron core 3 lateral wall and lower end is assisted between static iron core 11.
The meridian plane of described interior dynamic iron core 5 is two laterally zygomorphic U-shaped structures, and its lateral wall length is less than inner side main body length; The lateral wall of described interior dynamic iron core 5 and the madial wall of described outer dynamic iron core 6 have groove, and for putting permanent magnet 7, and described groove is near the upper surface of interior dynamic iron core 5 lateral wall and outer dynamic iron core 6.
Described permanent magnet 7 is embedded in the groove of interior dynamic iron core 5 and outer dynamic iron core 6; Described outer dynamic iron core 6 is made up of two pieces of symmetry, and itself and interior dynamic iron core 5 is fixed with four groups of steady pins 14 symmetrically; Between described interior dynamic iron core 5 and outer dynamic iron core 6, the radial width of air gap is less than upper end static iron core 2 sidewall and upper end assists the radial width of air gap between static iron core 10 and lower end static iron core 3 sidewall and lower end to assist the radial width of air gap between static iron core 11.
As in Figure 3-5, a kind of above-mentioned permanent magnetism is placed in the separating brake method of the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core: when permanent-magnet manipulating mechanism receives sub-gate signal, a pulse current is passed in auxiliary switching winding 12, the electromagnetic field that auxiliary switching winding 12 produces is contrary with the permanent magnetic field direction that permanent magnet 7 produces, and the closing retention force that iron core 4 is subject to reduces rapidly; Meanwhile, in switching winding 9, pass into an electric current, along with electric current increases, downward electromagnetic force and the gravity sum of counter-force and moving component are greater than the confining force suffered by dynamic iron core 4 suffered by the dynamic iron core 4, move iron core 4 and move downward; When dynamic iron core 4 move to contact with lower end static iron core 3 time, dynamic iron core 4 remains on open position under permanent magnet 7 acts on.
Due to the symmetry of structure, making process and separating brake process similar, repeat no more herein.
Below by reference to the accompanying drawings embodiments of the present invention are described in detail, but the present invention is not limited to described execution mode.For those of ordinary skill in the art, in the scope of principle of the present invention and technological thought, multiple change, amendment, replacement and distortion are carried out to these execution modes and still falls within the scope of protection of the present invention.
Claims (4)
1. permanent magnetism is placed in a high pressure bi-stable permanent magnetism operating mechanism for dynamic iron core, it is characterized in that: comprise upper end static iron core (2), static iron core (10) assisted in upper end, static iron core (11), switching winding (9), closing coil (8) are assisted in lower end static iron core (3), lower end, auxiliary switching winding (12), auxiliary switching-in coil (13), dynamic iron core (4), permanent magnet (7) and guide rod (1);
Upper end static iron core (2) and lower end static iron core (3) is respectively arranged with above and below described dynamic iron core (4), dynamic iron core (4) comprises interior dynamic iron core (5) and outer dynamic iron core (6), described permanent magnet (7) is embedded between interior dynamic iron core (5) and outer dynamic iron core (6), described guide rod (1) is fixedly connected with dynamic iron core (4), the centre bore of upper end static iron core (2) and lower end static iron core (3) is stretched out at guide rod (1) two ends, and is slidably connected with upper end static iron core (2), lower end static iron core (3);
Described upper end static iron core (2) is the fluted body that Open Side Down, and the radial thickness of its two side is less than the axial width of transverse arm; Described closing coil (8) is placed in the groove of upper end static iron core (2), is looped around the outside of interior dynamic iron core (5) main body; Described upper end static iron core (2) lateral wall is provided with upper end and assists static iron core (10); Described auxiliary switching winding (12) is arranged at upper end static iron core (2) lateral wall and upper end is assisted between static iron core (10);
The fluted body that described lower end static iron core (3) is opening upwards, the radial thickness of its two side is less than the axial width of transverse arm; Described switching winding (9) is placed in the groove of lower end static iron core (3), is looped around the outside of interior dynamic iron core (5) main body; Described lower end static iron core (3) lateral wall is provided with lower end and assists static iron core (11); Described auxiliary switching-in coil (13) is arranged at lower end static iron core (3) lateral wall and lower end is assisted between static iron core (11).
2. permanent magnetism according to claim 1 is placed in the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core, it is characterized in that: the meridian plane of described interior dynamic iron core (5) is two laterally zygomorphic U-shaped structures, and its lateral wall length is less than inner side main body length; The lateral wall of described interior dynamic iron core (5) and the madial wall of described outer dynamic iron core (6) have groove, and for putting permanent magnet (7), and described groove is near the upper surface of interior dynamic iron core (5) lateral wall and outer dynamic iron core (6).
3. permanent magnetism according to claim 1 is placed in the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core, it is characterized in that: described permanent magnet (7) is embedded in the groove of interior dynamic iron core (5) and outer dynamic iron core (6); Described outer dynamic iron core (6) is made up of two pieces of symmetry, and uses four groups of steady pins (14) itself and interior dynamic iron core (5) to be fixed symmetrically; Between described interior dynamic iron core (5) and outer dynamic iron core (6), the radial width of air gap is less than upper end static iron core (2) sidewall and upper end assists the radial width of air gap between static iron core (10) and lower end static iron core (3) sidewall and lower end to assist the radial width of air gap between static iron core (11).
4. described in a claim 1,2 or 3, permanent magnetism is placed in the separating brake method of the high pressure bi-stable permanent magnetism operating mechanism of dynamic iron core, it is characterized in that: when permanent-magnet manipulating mechanism receives sub-gate signal, a pulse current is passed in auxiliary switching winding (12), the electromagnetic field that auxiliary switching winding (12) produces is contrary with the permanent magnetic field direction that permanent magnet (7) produces, and the closing retention force that iron core (4) is subject to reduces rapidly; Meanwhile, in switching winding (9), pass into an electric current, along with electric current increases, when the suffered downward electromagnetic force of dynamic iron core (4) and the gravity sum of counter-force and moving component are greater than the confining force suffered by dynamic iron core (4), move iron core (4) and move downward; When dynamic iron core (4) move to contact with lower end static iron core (3) time, dynamic iron core (4) remains on open position under permanent magnet (7) effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980116.0A CN105428151A (en) | 2015-12-24 | 2015-12-24 | High-voltage bistable permanent magnet actuator with permanent magnets placed in movable iron core and switching off method of high-voltage bistable permanent magnet actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980116.0A CN105428151A (en) | 2015-12-24 | 2015-12-24 | High-voltage bistable permanent magnet actuator with permanent magnets placed in movable iron core and switching off method of high-voltage bistable permanent magnet actuator |
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| Publication Number | Publication Date |
|---|---|
| CN105428151A true CN105428151A (en) | 2016-03-23 |
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|---|---|---|---|
| CN201510980116.0A Pending CN105428151A (en) | 2015-12-24 | 2015-12-24 | High-voltage bistable permanent magnet actuator with permanent magnets placed in movable iron core and switching off method of high-voltage bistable permanent magnet actuator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895446A (en) * | 2016-05-12 | 2016-08-24 | 安徽尚途电力保护设备有限公司 | Medium and high voltage grid direct-current high-speed cut-off switch closing and breaking device |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
| CN112185764A (en) * | 2020-09-28 | 2021-01-05 | 武汉同力同为科技有限公司 | Switch device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826402A (en) * | 2009-03-06 | 2010-09-08 | 沈阳工业大学 | Bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps |
| CN202285204U (en) * | 2011-11-07 | 2012-06-27 | 北京科锐配电自动化股份有限公司 | Permanent-magnet control mechanism |
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2015
- 2015-12-24 CN CN201510980116.0A patent/CN105428151A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826402A (en) * | 2009-03-06 | 2010-09-08 | 沈阳工业大学 | Bistable permanent-magnet operating mechanism dispersedly exciting on two sides of brake opening and closing working air gaps |
| CN202285204U (en) * | 2011-11-07 | 2012-06-27 | 北京科锐配电自动化股份有限公司 | Permanent-magnet control mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895446A (en) * | 2016-05-12 | 2016-08-24 | 安徽尚途电力保护设备有限公司 | Medium and high voltage grid direct-current high-speed cut-off switch closing and breaking device |
| CN105895446B (en) * | 2016-05-12 | 2018-05-22 | 安徽尚途电力保护设备有限公司 | A kind of mesohigh power grid direct current high-speed circuit breaker (HSCB) closing-opening device |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
| CN110085486B (en) * | 2019-06-03 | 2024-05-28 | 昆山瑞普电气有限公司 | Dual-drive fast switch |
| CN112185764A (en) * | 2020-09-28 | 2021-01-05 | 武汉同力同为科技有限公司 | Switch device |
| CN112185764B (en) * | 2020-09-28 | 2024-02-23 | 武汉同力同为科技有限公司 | Switching device |
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