CN107833783B - A kind of powder operation device and its actuating method of dc circuit breaker - Google Patents
A kind of powder operation device and its actuating method of dc circuit breaker Download PDFInfo
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- CN107833783B CN107833783B CN201710859374.2A CN201710859374A CN107833783B CN 107833783 B CN107833783 B CN 107833783B CN 201710859374 A CN201710859374 A CN 201710859374A CN 107833783 B CN107833783 B CN 107833783B
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- Prior art keywords
- operation device
- iron core
- powder operation
- separating brake
- winding
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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
Abstract
Disclose the powder operation device and its actuating method of a kind of dc circuit breaker, powder operation device includes vacuum bubbles, repulsive force mechanism connects the electromagnetic mechanism of the repulsive force mechanism with via connecting rod, the mechanical contact being made of static contact and moving contact is equipped in the vacuum bubbles, the moving contact connects repulsive force mechanism via insulated pull rod, the repulsive force mechanism includes opening coil, repulsion dish, charging and discharging circuit and the first controller for controlling the charging and discharging circuit triggering sub-switching operation, the repulsion dish connect connecting rod via dynamic guide rod, opening coil is located above repulsion dish and gap is no more than 3.5mm；The electromagnetic mechanism includes static iron core, dynamic iron core, suction and coil, hold-in winding, separating brake reset spring, touch spring and the second controller of annular hollow.
Description
Technical field
The present invention relates to a kind of dc circuit breaker field, the powder operation device of especially a kind of dc circuit breaker and its actuating
Method.
Background technique
It is easier to control etc. due to direct current system its route low cost, without capacity current, without eddy-current loss, trend excellent
Point, high direct voltage DC transmission system are concerned.Especially certain specific occasions, such as large ship power supply system, city rail
The direct current systems such as road traffic power supply system have obtained significant progress.The capacity sustainable growth of simultaneous direct current system and electricity
The continuous improvement of grade is pressed, peak value of short can reach 100kA or more, while its short circuit current climbing is also in 15A/us
More than.
Operating mechanism in a kind of breaker disclosed in patent document CN201156495Y includes an electromagnetic repulsion force driving machine
Structure and a bistable state combination disk spring holding mechanism；The electromagnetic repulsion force driving mechanism includes two discharge loops, and is put described in two
What electrical circuit was separately connected is arranged in the opening coil and closing coil in upper and lower support plate, the opening coil and closing line
By bolt, there are a gaps between circle, and link into an integrated entity, and a repulsion disk are provided in the gap, on the repulsion disk
Fixation wears a repulsion bar, and the repulsion bar upper and lower end slides respectively is fed through the opening coil and closing coil, described
Repulsion bar upper end wear expose the opening coil position it is corresponding with a photoelectric sensor, be arranged a sensor barn door；It is described
Bistable state combination disk spring holding mechanism includes a retentivity bar, and the upper end is connect with repulsion bar lower end, the retentivity bar
On be fixedly installed multiple springs gear, block top in the spring and be equipped with the disc spring that at least two panels is oppositely arranged, the periphery of the disc spring
It is fixedly connected on multiple long threaded rods, is fixedly connected at the top of the long threaded rod on the lower supporting plate.The patent structure is simple,
Bistable state combination disk spring holding mechanism moving-mass and impact kinetic energy are small, and power producing characteristics design is simple, but the patent cannot achieve
Specified divide-shut brake, at the same short-circuit current when arriving can quick acting switching-off, and under the premise of realizing two kinds of functions, realization volume
Determine divide-shut brake service life height, quick acting switching-off moving parts quality is small, speed is fast, improves the service life of dc circuit breaker, reduces and closes
Lock speed.
A kind of high-speed switch based on permanent magnet holding mechanism disclosed in patent document CN205723330U includes being sequentially connected
Top guide bar (1), vacuum interrupter (2), middle guide rod, insulator (3), lower guide rod (4) and keep use dynamic iron core (9), described
It is set with repulsion dish (6) on lower guide rod (4), opening coil (5) is installed above the repulsion dish (6) and is equipped with thereunder
Closing coil (7)；Upper holding static iron core, holding static iron core on this are installed above the holding dynamic iron core (9)
Centre is equipped with combined floodgate and keeps permanent magnet (11), and is equipped with lower holding static iron core below the holding dynamic iron core (9),
Separating brake is installed among the lower holding static iron core and keeps permanent magnet (14).The patent is opened based on the rapid repulsion that permanent magnetism is kept
It closes, can effectively improve switch opening velocity, but the patent cannot achieve specified divide-shut brake, while when short-circuit current arrival
Can quick acting switching-off realize that the specified divide-shut brake service life is high, quick acting switching-off movable member matter and under the premise of realizing two kinds of functions
It measures that small, speed is fast, improves the service life of dc circuit breaker, reduce closing speed.
Current quick operating mechanism is difficult to meet the life requirements of specified divide-shut brake on the basis of realizing quick acting switching-off.
Specified divide-shut brake service life height can not be preferably compatible in some use occasions for needing frequent on-off and quick acting switching-off is fireballing
It is required that.
Disclosed above- mentioned information are used only for enhancing the understanding to background of the present invention in the background section, it is thus possible to
Information comprising not constituting the prior art known to a person of ordinary skill in the art in home.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide a kind of powder operation devices, and it is high to can satisfy quick acting switching-off speed
The long requirement with the specified divide-shut brake service life.
The purpose of the present invention is be achieved by the following technical programs.
One aspect of the present invention, a kind of powder operation device of dc circuit breaker include vacuum bubbles, repulsive force mechanism and via even
Bar connects the electromagnetic mechanism of the repulsive force mechanism.
The mechanical contact being made of static contact and moving contact is equipped in the vacuum bubbles, the moving contact is via insulated pull rod
Repulsive force mechanism is connected, the repulsive force mechanism includes opening coil, repulsion dish, charging and discharging circuit and the control charging and discharging circuit touching
Send out sub-switching operation the first controller, the repulsion dish via dynamic guide rod connect connecting rod, opening coil be located at repulsion dish top and
Gap is not more than 3.5mm.
The electromagnetic mechanism includes that static iron core, dynamic iron core, suction and the coil, hold-in winding, separating brake of annular hollow reset bullet
Spring, touch spring and second controller, the interior setting of the static iron core is inhaled and coil and hold-in winding, and it is hollow that connecting rod passes through static iron core
Part, the dynamic iron core are located at below the static iron core, and the dynamic guide rod being connected on connecting rod passes through static iron core hollow space and divides
It is not connected with repulsion dish and dynamic iron core, is surrounded with touch spring and separating brake reset spring, the separating brake reset spring on dynamic guide rod
End be against in dynamic iron core.
When the powder operation device is connected to reclosing command, second controller control is inhaled and coil and hold-in winding are powered so that
Then dynamic iron core first overcomes separating brake reset spring elastic force while the elastic force of separating brake reset spring and touch spring being overcome to move upwards,
When the powder operation device is in closing position, second controller control is inhaled with coil blackout and hold-in winding is powered so that dynamic iron
Core and static iron core are stably held in suction and state with constant compression touch spring.
When the powder operation device is connected to separating brake instruction, second controller controls hold-in winding power-off and inhales reversed with coil
It is powered, dynamic iron core first moves downward and then in separating brake reset spring list under touch spring and separating brake reset spring collective effect
Realization sub-switching operation solely is moved downward under effect, when the powder operation device is in open position, separating brake reset spring keeps dividing
Lock.
In the powder operation device of dc circuit breaker, when the powder operation device is connected to quick acting switching-off instruction, the first controller
Opening coil electric discharge is controlled, repulsion dish drive connecting rod to realize quick disjunction.
In the powder operation device of dc circuit breaker, the charging and discharging circuit by with precharge driving capacitor, thyristor,
Coil is composed in series, coil both ends reverse parallel connection freewheeling diode.
In the powder operation device of dc circuit breaker, the powder operation device is equipped with buffer unit below electromagnetic mechanism, works as institute
When stating powder operation device and being in open position, separating brake reset spring and buffer unit keep separating brake, buffer unit include oil bumper,
Damping buffer or spring buffer.
In the powder operation device of dc circuit breaker, when the powder operation device is connected to reclosing command, second controller is used
Capacitor is powered to suction and coil.
In the powder operation device of dc circuit breaker, the repulsion dish are to generate the circle or annular shape of vortex, repulsion dish
Including copper or aluminium alloy conductive material.
In the powder operation device of dc circuit breaker, the section shape of the static iron core includes that U-shaped, E type and helical are tubular, institute
Stating static iron core is permeability magnetic material.
In the powder operation device of dc circuit breaker, the hold-in winding seals in resistance, and separating brake reset spring has scheduled
Pre compressed magnitude, opening coil include sandwich wound coil, and the material of the dynamic guide rod is non-magnet material.
Insulating element is equipped in the powder operation device of dc circuit breaker, between the repulsive force mechanism and electromagnetic mechanism to be isolated,
The pre compressed magnitude and coefficient of elasticity of touch spring are greater than separating brake reset spring.
According to another aspect of the present invention, a kind of actuating method and step of the powder operation device using the dc circuit breaker
Include:
The powder operation device is connected to reclosing command, and second controller control, which is inhaled, to be powered so that dynamic iron with coil and hold-in winding
Then core first overcomes separating brake reset spring elastic force while the elastic force of separating brake reset spring and touch spring being overcome to move upwards, work as institute
When stating powder operation device and being in closing position, second controller control is inhaled and coil blackout and hold-in winding are powered so that dynamic iron core and
Static iron core is stably held in suction and state with constant compression touch spring.
The powder operation device is connected to separating brake instruction, and second controller control hold-in winding is powered off and inhaled reversely to be led to coil
Electricity, dynamic iron core first move downward and then independent in separating brake reset spring under touch spring and separating brake reset spring collective effect
Realization sub-switching operation is moved downward under effect, when the powder operation device is in open position, separating brake reset spring and buffering dress
Set holding separating brake.
The powder operation device is connected to quick acting switching-off instruction, and the first controller controls opening coil electric discharge, and repulsion dish, which drive, to be connected
Bar realizes quick disjunction.
It is simple that the present invention provides structures, is easy to the powder operation device manipulated, specified divide-shut brake service life height may be implemented, quickly
Separating brake moving parts quality is small, speed is fast, and the service life of dc circuit breaker can be improved, and reduces closing speed.The actuating
Device realizes specified divide-shut brake service life height, while being capable of quick acting switching-off when short-circuit current arrival.The structure inhale and power by
Electromagnet provides, by the way that touch spring and separating brake reset spring is rationally arranged, realize stablize and lower impact velocity inhale and；Institute
When stating powder operation device and being in holding position, suction and retentivity compression contacts spring between sound iron core is utilized to provide contact final pressure
Power.In specified separating brake, coil power down, dynamic iron core realizes separating brake under the action of separating brake reset spring and touch spring.Short
When electric current arrival in road needs quick acting switching-off, is discharged by capacitor opening coil, induce vortex, coil and metal in repulsion dish
Powerful electromagnetic repulsion force is generated between disk, to drive link motion, realizes the quick disjunction of switch.Powder operation device is realized specified
The function of divide-shut brake and quick acting switching-off.
The above description is only an overview of the technical scheme of the present invention, in order to make technological means of the invention clearer
Understand, reach the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to allow the present invention
Above and other objects, features and advantages can be more clearly understood, illustrated below with a specific embodiment of the invention
Explanation.
Detailed description of the invention
By reading the detailed description in hereafter preferred embodiment, various other advantages and benefits of the present invention
It will become apparent to those of ordinary skill in the art.Figure of description only for the purpose of illustrating preferred embodiments,
And it is not to be construed as limiting the invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.And throughout the drawings, identical component is presented with like reference characters.
In the accompanying drawings:
Fig. 1 is that the structure when powder operation device of dc circuit breaker according to an embodiment of the invention is in open position is shown
It is intended to；
Fig. 2 is that the structure when powder operation device of dc circuit breaker according to an embodiment of the invention is in closing position is shown
It is intended to；
Fig. 3 is the structural representation of the repulsive force mechanism of the powder operation device of dc circuit breaker according to an embodiment of the invention
Figure；
The step of Fig. 4 is the actuating method of the powder operation device according to an embodiment of the invention using dc circuit breaker is shown
It is intended to；
Wherein, 1 is high speed repulsive force mechanism, and 2 be electromagnetic mechanism, and 3 be mechanical contact, and 4 be insulated pull rod, and 5 be opening coil,
6 be repulsion dish, and 7 be static iron core, and 8 be touch spring, and 9 be separating brake reset spring, and 10 be connecting rod, and 11 be suction and coil, and 12 be guarantor
Coil is held, 13 be dynamic iron core, and 14 be buffer, and 15 be static contact, and 16 be moving contact.
Below in conjunction with drawings and examples, the present invention will be further explained.
Specific embodiment
The specific embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although being shown in attached drawing of the invention
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without that should be limited by embodiments set forth here
System.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be complete by the scope of the present invention
Be communicated to those skilled in the art.
It should be noted that having used some vocabulary in the specification and claims to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call the same component with different nouns.This specification and right
It is required that not in such a way that the difference of noun is as component is distinguished, but with the difference of component functionally as differentiation
Criterion."comprising" or " comprising " as mentioned throughout the specification and claims are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions are to implement better embodiment of the invention, so the description be with
For the purpose of the rule of specification, the range that is not intended to limit the invention.Protection scope of the present invention is when the appended right of view
It is required that subject to institute's defender.
In order to facilitate understanding of embodiments of the present invention, further by taking specific embodiment as an example below in conjunction with attached drawing to be solved
Explanation is released, and each attached drawing does not constitute the restriction to the embodiment of the present invention.
In order to better understand, Fig. 1 be dc circuit breaker according to an embodiment of the invention powder operation device be in point
Structural schematic diagram when gate position, the powder operation device of dc circuit breaker include vacuum bubbles, repulsive force mechanism 1 and connect via connecting rod 10
The electromagnetic mechanism 2 of the repulsive force mechanism 1.
Be equipped with the mechanical contact 3 being made of static contact 15 and moving contact 16 in the vacuum bubbles, the moving contact 16 via
Insulated pull rod 4 connects repulsive force mechanism 1, and the repulsive force mechanism 1 includes opening coil 5, repulsion dish 6, charging and discharging circuit and control institute
The first controller of charging and discharging circuit triggering sub-switching operation is stated, the repulsion dish 6 connect connecting rod 10, opening coil via dynamic guide rod
5 are located at 6 top of repulsion dish and gap no more than 3.5mm.
The electromagnetic mechanism 2 includes static iron core 7, dynamic iron core 13, suction and the coil 11 of annular hollow, hold-in winding 12, divides
Lock reset spring 9, touch spring 8 and second controller, the interior setting of the static iron core 7 is inhaled and coil 11 and hold-in winding 12, even
Bar 10 passes through 7 hollow space of static iron core, and the dynamic iron core 13 is located at 7 lower section of the static iron core, and be connected on connecting rod 10 dynamic leads
Bar passes through 7 hollow space of static iron core and is connected respectively with repulsion dish 6 and dynamic iron core 13, is surrounded with 8 He of touch spring on dynamic guide rod
The end of separating brake reset spring 9, the separating brake reset spring 9 is against in dynamic iron core 13.
When the powder operation device is connected to reclosing command, second controller control is inhaled to be powered with coil 11 and hold-in winding 12
So that then dynamic iron core 13 first overcomes 9 elastic force of separating brake reset spring while overcoming the elastic force of separating brake reset spring 9 and touch spring 8
It moves upwards, when the powder operation device is in closing position, second controller control is inhaled and coil 11 powers off and hold-in winding
12 are powered so that dynamic iron core 13 and static iron core 7 are stably held in suction and state with constant compression touch spring 8.
In one embodiment, referring to Fig. 1, gate-dividing state, after being connected to reclosing command, capacitor discharges to suction and coil 11,
Static iron core 7 magnetizes, and dynamic iron core 13 overcomes counter-force that connecting rod 10 is driven to move upwards under the action of electromagnetic attraction, while hold-in winding
12 start power up.It is inhaling in the process, dynamic iron core 13 overcomes the counter-force of two springs to act on.Further, separating brake reset spring 9
There is certain pre compressed magnitude, and with the reduction continued compression of sound iron core stroke.
Further, it can quickly inhale for realization sound iron core and and inhale and be the unsuitable excessively high mesh of impact velocity
, while a retentivity can be provided inhaling to stablize with position, touch spring 8 has biggish decrement and biggish elasticity
Coefficient, stroke the last period distance in, touch spring 8 dynamic iron core 13 movement and move, without compress.In sound iron core
Air gap is smaller, and when electromagnetic attraction is larger, touch spring starts to act on, and after dynamic/static contact basis, there are also parts for sound iron core
The excess of stroke, touch spring 8 continues compression until sound iron core is inhaled and the offer contact end pressure of touch spring 8 completely.Sound iron simultaneously
Retentivity between core can be greater than the resultant force of touch spring 8 and separating brake reset spring 9, and there are surpluses.
Further, in order to avoid inhale and when inhale and the zooming electric current of coil 11 induced in hold-in winding 12
Reverse current, the series diode in 12 circuit of hold-in winding.
When the powder operation device is connected to separating brake instruction, second controller controls the power-off of hold-in winding 12 and inhales and coil 11
Reversed to be powered, dynamic iron core 13 is first moved downward under 9 collective effect of touch spring 8 and separating brake reset spring and is then answered in separating brake
Realization sub-switching operation is moved downward under 9 independent role of spring of position, when the powder operation device is in open position, separating brake resets bullet
Spring 9 keeps separating brake.
In one embodiment, referring to fig. 2, the present invention is in "on" position, and after being connected to separating brake instruction, hold-in winding 12 falls
Electricity.By inhaling with the reversed energization demagnetization of coil 11 or hold-in winding 12 through continuous current circuit fast dissipation energy, dynamic iron core 13 exists
Connecting rod 10 is driven to move downward under the action of touch spring 8 and separating brake reset spring 9, so that dynamic/static contact separates.
In the preferred embodiment of the powder operation device of the dc circuit breaker, when the powder operation device is connected to quick acting switching-off
When instruction, the first controller controls opening coil 5 and discharges, and repulsion dish 6 drive connecting rod to realize quick disjunction.
In one embodiment, referring to Fig. 3, powder operation device is in "on" position, when short circuit current arrives, passes through preliminary filling
The capacitor of electricity discharges to the opening coil 5 of such as sandwich wound coil, generates the pulse current for maintaining several milliseconds.In pulse current
Under effect, vortex will be induced in repulsion dish 6, and make to generate powerful electromagnetic repulsion force between opening coil 5 and metal dish, thus
It drives connecting rod 10 to move, realizes the quick disjunction of switch.
The advantage of the invention is that realizing quick acting switching-off function when short circuit current arrives, and moving parts quality when separating brake
Small, speed is high.Electromagnet is utilized in specified divide-shut brake and holding, the divide-shut brake service life is high, reliable and stable.The present invention is real
Existing reliable and stable suction and, while it is excessively high to avoid collision speed, starts to compress through the smaller moment touch spring of iron core air gap dynamic.
At this point, air gap is smaller, electromagnetic attraction is larger, can overcome touch spring counter-force, meanwhile, touch spring 8 has biggish precommpression
It measures and coefficient of elasticity is larger, be capable of providing a good buffer function.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the charging and discharging circuit is by with precharge
Driving capacitor, thyristor, coil be composed in series, coil both ends reverse parallel connection freewheeling diode.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the powder operation device is under electromagnetic mechanism 2
Side is equipped with buffer unit 14, and when the powder operation device is in open position, separating brake reset spring 9 and buffer unit 8 keep dividing
Lock, buffer unit 14 include oil bumper, damping buffer or spring buffer.
In the preferred embodiment of the powder operation device of the dc circuit breaker, when the powder operation device is connected to reclosing command
When, second controller is powered to suction and coil 11 using capacitor.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the repulsion dish 6 are the circle for generating vortex
Ring shape shape, repulsion dish 6 include copper or aluminium alloy conductive material.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the section shape of the static iron core 7 includes U
Type, E type or helical are tubular, and the static iron core 7 is permeability magnetic material.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the hold-in winding 12 seals in resistance, point
Lock reset spring 9 has scheduled pre compressed magnitude, and opening coil 5 includes sandwich wound coil, and the material of the dynamic guide rod is non-magnetic
Material.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the repulsive force mechanism 1 and electromagnetic mechanism 2 it
Between be equipped with insulating element and be isolated, the pre compressed magnitude and coefficient of elasticity of touch spring 8 are greater than separating brake reset spring 9.
In the preferred embodiment of the powder operation device of the dc circuit breaker, the insulated pull rod 4 and vacuum bubble moving end
It is connected through a screw thread, the opening coil 5 is bolted on insulation board；
In the preferred embodiment of the powder operation device of the dc circuit breaker, the top of the connecting rod 10 is connected with repulsion dish
6,6 disk of repulsion is tightly attached to opening coil 5；Moving contact 16 is connected in the top of connecting rod 10 and is protruded into vacuum bubbles.
In the preferred embodiment of the powder operation device of the dc circuit breaker, inhaled and pull-in winding 11 in making process
Electric current is not excessive, and impact velocity is not excessively high, is discharged using capacitor suction and coil 11.
Preferably, reaching requirement to guarantee that combined floodgate is to maintain 12 temperature rise of coil, line footpath and the number of turns are reasonably selected, while can go here and there
Entering resistance reduces coil power dissipation.
The step of Fig. 4 is the actuating method of the powder operation device according to an embodiment of the invention using dc circuit breaker is shown
Be intended to, using the powder operation device of the dc circuit breaker actuating method the step of include:
The powder operation device is connected to reclosing command, second controller control is inhaled and coil 11 and hold-in winding 12 are powered so that
Then dynamic iron core 13 first overcomes 9 elastic force of separating brake reset spring while overcoming the elastic force of separating brake reset spring 9 and touch spring 8 upward
Movement, when the powder operation device is in closing position, second controller control is inhaled and coil 11 powers off and hold-in winding 12 is logical
Electricity makes dynamic iron core 13 and static iron core 7 be stably held in suction and state with constant compression touch spring 8.
The powder operation device is connected to separating brake instruction, and second controller controls the power-off of hold-in winding 12 and inhales reversed with coil 11
It is powered, dynamic iron core 13 first moves downward under 9 collective effect of touch spring 8 and separating brake reset spring and then resets bullet in separating brake
Realization sub-switching operation is moved downward under 9 independent role of spring, when the powder operation device is in open position, separating brake reset spring 9
Separating brake is kept with buffer unit 14.
The powder operation device is connected to quick acting switching-off instruction, and the first controller controls opening coil 5 and discharges, and repulsion dish 6 drive
Connecting rod 10 realizes quick disjunction.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art are under the enlightenment of this specification and in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of powder operation device of dc circuit breaker comprising vacuum bubbles, repulsive force mechanism (1) and via connecting rod (10) connection described in
The electromagnetic mechanism (2) of repulsive force mechanism (1), it is characterised in that:
The mechanical contact (3) being made of static contact (15) and moving contact (16), the moving contact (16) are equipped in the vacuum bubbles
Repulsive force mechanism (1) is connected via insulated pull rod (4), the repulsive force mechanism (1) includes opening coil (5), repulsion dish (6), charge and discharge
Electrical circuit and the first controller for controlling the charging and discharging circuit triggering sub-switching operation, the repulsion dish (6) connect via dynamic guide rod
Connective pole (10), opening coil (5) is located above repulsion dish (6) and gap is no more than 3.5mm；
The electromagnetic mechanism (2) includes static iron core (7), dynamic iron core (13), the pull-in winding (11), hold-in winding of annular hollow
(12), separating brake reset spring (9), touch spring (8) and second controller, the static iron core (7) is interior to be arranged pull-in winding (11)
With hold-in winding (12), connecting rod (10) passes through static iron core (7) hollow space, and the dynamic iron core (13) is located at the static iron core (7)
Lower section, be connected to dynamic guide rod on connecting rod (10) pass through static iron core (7) hollow space and respectively with repulsion dish (6) and dynamic iron core
(13) it is connected, is surrounded with touch spring (8) and separating brake reset spring (9), the end of the separating brake reset spring (9) on dynamic guide rod
It is against on dynamic iron core (13)；
When the powder operation device is connected to reclosing command, second controller controls pull-in winding (11) and hold-in winding (12) is powered
So that then dynamic iron core (13) first overcomes separating brake reset spring (9) elastic force while overcoming separating brake reset spring (9) and touch spring
(8) elastic force moves upwards, and when the powder operation device is in closing position, second controller controls pull-in winding (11) power-off
And hold-in winding (12) is powered so that dynamic iron core (13) and static iron core (7) are stably held in attracting state with constant compression contact bullet
Spring (8)；
When the powder operation device is connected to separating brake instruction, second controller controls hold-in winding (12) power-off and pull-in winding (11)
Reversed to be powered, dynamic iron core (13) first moves downward under touch spring (8) and separating brake reset spring (9) collective effect and then exists
Realization sub-switching operation is moved downward under separating brake reset spring (9) independent role, when the powder operation device is in open position, point
Lock reset spring (9) keeps separating brake, and the powder operation device is equipped with buffer unit (14) below electromagnetic mechanism (2), the repulsion
Disk (6) is the circle or annular shape for generating vortex.
2. the powder operation device of dc circuit breaker according to claim 1, which is characterized in that when the powder operation device is connected to fastly
When fast separating brake instructs, the first controller controls opening coil (5) electric discharge, and repulsion dish (6) drive connecting rod to realize quick disjunction.
3. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: the charging and discharging circuit is by having
Driving capacitor, thyristor, the coil of precharge are composed in series, coil both ends reverse parallel connection freewheeling diode.
4. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: buffer unit (14) includes that oil is slow
Rush device or spring buffer.
5. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: when the powder operation device is connected to conjunction
When lock instructs, second controller is powered to pull-in winding (11) using capacitor.
6. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: repulsion dish (6) include copper or aluminium
Alloy conductive material.
7. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: the section of the static iron core (7)
Shape includes that U-shaped, E type or helical are tubular, and the static iron core (7) is permeability magnetic material.
8. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: the hold-in winding (12) seals in
Resistance, separating brake reset spring (9) have scheduled pre compressed magnitude, and opening coil (5) includes sandwich wound coil, the material of the dynamic guide rod
Material is non-magnet material.
9. the powder operation device of dc circuit breaker according to claim 1, it is characterised in that: the repulsive force mechanism (1) and electricity
It is equipped with insulating element between magnetic mechanism (2) to be isolated, the pre compressed magnitude and coefficient of elasticity of touch spring (8) are respectively greater than separating brake reset
The pre compressed magnitude and coefficient of elasticity of spring (9).
10. a kind of actuating method of the powder operation device using the dc circuit breaker of any of claims 1-9, step
Include:
The powder operation device is connected to reclosing command, second controller control pull-in winding (11) and hold-in winding (12) energization so that
Then dynamic iron core (13) first overcomes separating brake reset spring (9) elastic force while overcoming separating brake reset spring (9) and touch spring (8)
Elastic force moves upwards, and when the powder operation device is in closing position, second controller controls pull-in winding (11) power-off and protects
Coil (12) are held to be powered so that dynamic iron core (13) and static iron core (7) are stably held in attracting state with constant compression touch spring
(8)；
The powder operation device is connected to separating brake instruction, and second controller controls hold-in winding (12) power-off and pull-in winding (11) is reversed
It is powered, dynamic iron core (13) first moves downward and then in separating brake under touch spring (8) and separating brake reset spring (9) collective effect
Realization sub-switching operation is moved downward under reset spring (9) independent role, when the powder operation device is in open position, separating brake is multiple
Position spring (9) and buffer unit (14) keep separating brake；
The powder operation device is connected to quick acting switching-off instruction, and the first controller controls opening coil (5) electric discharge, and repulsion dish (6) drive
Connecting rod (10) realizes quick disjunction.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109671595B (en) | 2019-01-08 | 2020-01-14 | 程丽娜 | Switch |
| CN110752112B (en) * | 2019-09-04 | 2021-04-13 | 西安交通大学 | Bistable ultrahigh-speed operating mechanism, direct-current circuit breaker and control method |
| CN111554541B (en) * | 2020-06-29 | 2022-05-27 | 广东电网有限责任公司东莞供电局 | Vacuum circuit breaker |
| CN112071723B (en) * | 2020-07-21 | 2022-06-21 | 西安交通大学 | Permanent magnet and repulsion force combined quick switch operating mechanism |
| CN112038163B (en) * | 2020-09-26 | 2023-04-21 | 江西鑫业电气工程有限公司 | High-speed synchronous circuit breaker |
| CN112614757B (en) * | 2020-12-07 | 2023-10-10 | 国网福建省电力有限公司检修分公司 | Switching-on and switching-off state maintaining device of breaker operating mechanism |
| CN112713047B (en) * | 2020-12-11 | 2022-09-27 | 平高集团有限公司 | Arc extinguish chamber structure |
| CN112927981B (en) * | 2021-01-07 | 2023-08-08 | 天津平高智能电气有限公司 | Separating brake electromagnet of spring operating mechanism |
| CN112927982B (en) * | 2021-01-25 | 2022-03-22 | 西安交通大学 | Spring retaining device capable of reducing switching-on and switching-off rebounding of rapid vacuum switch and working method |
| CN112951651A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军海军工程大学 | Short-circuit current self-driven quick switch |
| CN113257644B (en) * | 2021-05-10 | 2023-03-10 | 北京中磁新材科技有限公司 | Combined circuit breaker operating mechanism for ultra-fast opening |
| CN113257640B (en) * | 2021-05-10 | 2023-03-14 | 北京中磁新材科技有限公司 | Duplex circuit breaker |
| CN113257641B (en) * | 2021-05-10 | 2023-03-14 | 北京中磁新材科技有限公司 | Ultra-fast opening circuit breaker adopting combined operating mechanism |
| CN113593943A (en) * | 2021-06-30 | 2021-11-02 | 山东泰开直流技术有限公司 | High-current rapid mechanical switch structure and control method thereof |
| CN117524780B (en) * | 2024-01-05 | 2024-03-15 | 宁波天安智能电网科技股份有限公司 | Self-induction magnetic force assisted quick-separating mechanism and high-voltage switch |
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| JP2000268683A (en) * | 1999-01-14 | 2000-09-29 | Toshiba Corp | Operating device for switch |
| JP2002124162A (en) * | 2000-10-16 | 2002-04-26 | Mitsubishi Electric Corp | Switchgear |
| CN2678102Y (en) * | 2003-07-07 | 2005-02-09 | 浙江森源自动化成套设备有限公司 | Permanent magnetic electric control mechanism of vacuum circuit breaker |
| CN101315836B (en) * | 2008-06-17 | 2010-07-21 | 西安交通大学 | Electromagnetic repulsion force system and permanent magnetic system coupled self-adapting control mechanism |
| CN101447365A (en) * | 2008-12-19 | 2009-06-03 | 南京因泰莱配电自动化设备有限公司 | Monostable permanent magnetism operating mechanism |
| CN205723330U (en) * | 2016-04-26 | 2016-11-23 | 国家电网公司 | A kind of high-speed switch based on permanent magnet holding mechanism |
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