CN104715964A - Monopole vacuum circuit breaker - Google Patents
Monopole vacuum circuit breaker Download PDFInfo
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- CN104715964A CN104715964A CN201510143132.4A CN201510143132A CN104715964A CN 104715964 A CN104715964 A CN 104715964A CN 201510143132 A CN201510143132 A CN 201510143132A CN 104715964 A CN104715964 A CN 104715964A
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- circuit breaker
- pole
- transmission shaft
- power transmission
- vacuum circuit
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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
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Abstract
The invention belongs to the technical field of power system high-voltage circuit breakers, and particularly relates to a monopole vacuum circuit breaker. The monopole vacuum circuit breaker comprises a fixedly-sealed pole column which is internally provided with a vacuum arc-extinguishing chamber. A static contact and a movable contact are arranged in the vacuum arc-extinguishing chamber. The movable contact is connected with an insulation pull rod. The circuit breaker further comprises an operation mechanism for controlling the insulation pull rod to move to achieve switch-on and switch-off operation. The operation mechanism comprises a transmission shaft connected with the insulation pull rod and a permanent magnetic mechanism for controlling the transmission shaft to move. In the electric switch-off process, a switch-off coil of the permanent magnetic mechanism is electrified to drive a movable iron core in the permanent magnetic mechanism to pull the transmission shaft and the insulation pull rod so as to switch off the circuit breaker; when the circuit breaker is in a switch-off state, a switch-on coil of the permanent magnetic mechanism is electrified to drive the movable iron core in the permanent magnetic mechanism to push the transmission shaft and the insulation pull rod so as to switch on the circuit breaker. A spring structure adopted in a traditional circuit breaker is replaced with the permanent magnetic mechanism to achieve the switch-off and switch-on processes, and the circuit breaker is simple in whole structure, small in occupied space, long in mechanical service and reliable in performance.
Description
Technical field
The present invention relates to a kind of single-pole vacuum circuit breaker, belong to electric power system primary cut-out equipment technical field.
Background technology
Outdoor high-voltage vacuum breaker is mainly used in cut-offfing, the load current closed in electric power system, overload current and short circuit current; Be applicable to the control and protection of electric power system, be most widely used at urban power distribution network and rural power grids, high-pressure vacuum breaker equipment developed recently trend is strengthen energy-conserving and environment-protective, the simplification strengthening structure, the reliability of operation, non-maintaining switchgear aspect developing; Wherein core be point, efficient, the safety of switch-on operating mechanism and reliability running.
At present, domestic high-pressure vacuum breaker mostly adopts three pole common box types, and the structure of three-pole breaker comprises galvanic circle, arc control device and spring operating mechanism, and wherein spring operating mechanism is generally electric energy-stored, and electronic divide-shut brake, has manual function simultaneously; Total is by switching-in spring, energy-storage system, splitting or integrating brake system, overcurrent release, the parts compositions such as divide-shut brake coil, link transmission, whole mechanism is complicated, subassembler's sequence is many, volume is large, useful life is shorter, easily break down, and this circuit breaker can only realize, and three poles is thrown simultaneously, tangent line road, congenial, tangent line road can not be divided separately, cannot be applied to based in the electric power systems such as single-phase railway, common electricity consumption.
For solving the problems of the technologies described above, Chinese patent literature CN202258991 discloses a kind of single-phase monopole indoor railway embedded pole vacuum circuit breaker, comprise operating mechanism, instrument transformer, pole, be provided with drive mechanism between operating mechanism and pole and subtract power structure, the described power structure that subtracts comprises insulated tension pole, upper connecting lever and lower connecting lever, insulated tension pole left end and drive mechanism are in transmission connection, one end of the right-hand member of insulated tension pole and upper connecting lever and lower connecting lever is hinged, the other end of lower connecting lever is fixed on conductive support, the other end of upper connecting lever to be slidably disposed in the vertical slot that conductive support opens and to conduct electricity with the moving contact transmission of pole and is connected.In making process, pull bar moves right, under the effect supporting connecting lever, haul push pedal rotate, insulated tension pole moves right, what drive was made up of upper connecting lever, lower connecting lever subtracts power structure motion, pushing drawing rod moves upward, thus compression excess of stroke stage clip makes the dynamic/static contact face in arc control device fully overlap, and major loop is in connection status.On the contrary, when pull bar is moved to the left, realize gate-dividing state, major loop is in off-state.
Single-phase vacuum circuit breaker disclosed in above-mentioned patent documentation, by being provided with drive mechanism and subtracting separating brake, the making process that power structure realizes single-phase circuit breaker between operating mechanism and pole, but subtract power structure and the drive mechanism that increase make the volume of whole circuit breaker comparatively large, take up room large during use; The structure of whole operating mechanism still adopts link transmission structure to realize simultaneously, and the parts of operating mechanism are more, complex structure, are not easy to processing and manufacturing and assembling, follow-up I&M, and the whole service life of circuit breaker is short.
Summary of the invention
Therefore, technical problem to be solved by this invention is the defect that the complex structure of single-phase vacuum circuit breaker in prior art, useful life are short, thus provides that a kind of structure is simple, the single-pole vacuum circuit breaker of long service life.
For this reason, the invention provides a kind of single-pole vacuum circuit breaker, comprise pole, vacuum interrupter is provided with in described pole, described vacuum extinction indoor are provided with fixed contact and moving contact, described moving contact is connected with insulated tension pole, also comprise the described insulated tension pole of control to move, realize the operating mechanism of divide-shut brake, it is characterized in that: described operating mechanism comprises, the power transmission shaft be connected with described insulated tension pole, and control the permanent magnet mechanism of described power transmission shaft movement, during electronic separating brake, the switching winding of described permanent magnet mechanism obtains electric, in permanent magnet mechanism, dynamic iron core pulls described power transmission shaft and described insulated tension pole to make breaker open operation, when circuit breaker is in gate-dividing state, described permanent magnet mechanism closing coil obtains electric, the interior dynamic iron core of permanent magnet mechanism promotes described power transmission shaft and described insulated tension pole makes breaker closing.
Above-mentioned a kind of single-pole vacuum circuit breaker, described pole is fixed on the outside of casing by connecting plate, and described operating mechanism is fixed on the inner side of described casing by described connecting plate.
Above-mentioned a kind of single-pole vacuum circuit breaker, described permanent magnet mechanism is fixed on described connecting plate by permanent magnetism fixed head.
Above-mentioned a kind of single-pole vacuum circuit breaker, described operating mechanism also comprises tripping spring, and described tripping spring one end is hooked on the axle fixing with described power transmission shaft, and the other end is hooked on the described permanent magnetism fixed head that is fixedly connected with described permanent magnet mechanism.
Above-mentioned a kind of single-pole vacuum circuit breaker, described operating mechanism also comprises manual brake separating mechanism, described manual brake separating mechanism comprises, be connected to the separating brake rotating shaft on described casing rotationally, to be positioned at outside described casing and the manual brake separating handle be fixedly connected in described separating brake rotating shaft, described separating brake rotating shaft is fixedly connected with cursor, and described power transmission shaft correspondence is provided with flange, and the separating brake back-moving spring for making described cursor be separated with described flange; Described separating brake rotating shaft rotation under the pulling of described manual brake separating handle, described cursor is driven to be pressed against on described flange, breaker open operation, after unclamping described manual brake separating handle, under the effect of described separating brake back-moving spring, described cursor is separated with described flange, and manual brake separating handle resets to closing position.
Above-mentioned a kind of single-pole vacuum circuit breaker, described separating brake back-moving spring is extension spring, and on the pin of one end hook on described permanent magnetism fixed head, the other end is hooked on described cursor.
Above-mentioned a kind of single-pole vacuum circuit breaker, also comprise the testing agency for detecting circuit-breaker switching on-off position, it comprises the driver plate be arranged on described power transmission shaft, and laying respectively at driver plate both sides and the travel switch arranged along described power transmission shaft moving direction, described travel switch is installed on described permanent magnetism fixed head.
Above-mentioned a kind of single-pole vacuum circuit breaker, the two ends of described insulated tension pole are embedded with connecting bolt respectively, one end is threaded with described moving contact, the other end is threadedly connected to axle, sheathed pull bar on described axle other end outer wall is also connected by pin, and the described pull bar other end is fixedly connected with described power transmission shaft.
Above-mentioned a kind of single-pole vacuum circuit breaker, described axle is provided with strip pin-and-hole vertically, described pull bar can move along described strip pin-and-hole relative to described axle, between described pull bar and described insulated tension pole end, be also provided with Compress Spring, the initial elastic force of described Compress Spring makes described pin be positioned at the least significant end of described strip pin-and-hole.
Above-mentioned a kind of single-pole vacuum circuit breaker, described pull bar is connected by adjusting screw(rod) with described power transmission shaft, described adjusting screw(rod) one end is connected with described pull rod screw, the other end radially offers through hole, described axle through the through hole of described adjusting screw(rod), and passes radially through described power transmission shaft and achieves a fixed connection.
A kind of single-pole vacuum circuit breaker provided by the invention, has the following advantages compared with single-pole vacuum circuit breaker in prior art:
(1) a kind of single-pole vacuum circuit breaker provided by the invention, control power transmission shaft by permanent magnet mechanism and move the divide-shut brake realizing circuit breaker, namely during electronic separating brake, the switching winding of described permanent magnet mechanism obtains electric, the magnetic field Direct driver permanent magnet mechanism produced by the exciting current of coil moves iron core and pulls described power transmission shaft and described insulated tension pole to move, make described moving contact and described fixed contact disjunction, breaker open operation, when circuit breaker is in gate-dividing state, described permanent magnet mechanism closing coil obtains electric, the magnetic field Direct driver permanent magnet mechanism produced by the exciting current of coil moves iron core and promotes described power transmission shaft and described insulated tension pole moves, described moving contact is contacted with described fixed contact, breaker closing.Permanent magnet mechanism instead of in conventional circuit breaker and adopts spring structure to realize divide-shut brake process, without the need to arranging force-reducing mechanism of the prior art and complicated jointed gear unit again in circuit breaker, make circuit breaker overall structure simple, simple to operate, mechanical endurance often, dependable performance, reduce the generation of fault, improve the useful life of circuit breaker.
(2) a kind of single-pole vacuum circuit breaker provided by the invention, pole is fixed on the outside of casing by connecting plate, and described operating mechanism is fixed on the inner side of described casing by described connecting plate.The pole of circuit breaker and operating mechanism link into an integrated entity by described casing, the entirety of circuit breaker is taken up room less, be convenient to processing and manufacturing and assembling, carrying also facilitates, avoid in prior art and be provided with separately force-reducing mechanism and transmission mechanism between pole and operating mechanism, take up room large defect.
(3) a kind of single-pole vacuum circuit breaker provided by the invention, described operating mechanism is also provided with tripping spring, and tripping spring one end is hooked on the axle fixing with described power transmission shaft, and the other end is hooked on the described permanent magnetism fixed head that is fixedly connected with described permanent magnet mechanism.During separating brake, power transmission shaft drives axial permanent magnetic mechanism direction to move release tripping spring energy, realizes separating brake; When separating brake is to combined floodgate transition, power transmission shaft drives and axially moves away from permanent magnet mechanism direction, and tripping spring is stretched, active force is applied to axle, promote that power transmission shaft moves to away from permanent magnet mechanism direction, the speed that quickening moving contact and fixed contact close, realize making process fast.
(4) a kind of single-pole vacuum circuit breaker provided by the invention, described operating structure also comprises manual brake separating mechanism, described manual brake separating mechanism, the cursor in separating brake rotating shaft is driven to be pressed against described power transmission shaft by pulling manual brake separating handle, power transmission shaft is moved to permanent magnet mechanism direction, realizes separating brake process; Decontrol manual brake separating handle, under the stretching action of back-moving spring, be separated by the cursor of separating brake rotating shaft with power transmission shaft, power transmission shaft moves to away from permanent magnet mechanism direction, and manual brake separating handle resets to closing position.The manual brake separating mechanism arranged, in case when abnormal conditions or fault appear in the electronic divide-shut brake of permanent magnet mechanism, starts manual brake separating mechanism and carries out separating brake control to circuit breaker, improve the reliability of circuit breaker further, avoid the generation of fault.
(5) a kind of single-pole vacuum circuit breaker provided by the invention, also be provided with the testing agency for detecting circuit-breaker switching on-off position, it comprises the driver plate be arranged on described power transmission shaft, and laying respectively at driver plate both sides and the travel switch arranged along described power transmission shaft moving direction, described travel switch is installed on described permanent magnetism fixed head.The operating state of remote monitoring circuit breaker is convenient to by the setting of travel switch.
(6) a kind of single-pole vacuum circuit breaker provided by the invention, axle is connected at insulated tension pole threaded one end, sheathed pull bar on described axle other end outer wall is also connected by pin, the described pull bar other end is fixedly connected with described power transmission shaft, described axle is provided with strip pin-and-hole vertically, described pull bar can move along described strip pin-and-hole relative to described axle, between described pull bar and described insulated tension pole end, be also provided with Compress Spring, the initial elastic force of described Compress Spring makes described pin be positioned at the least significant end of described strip pin-and-hole.When separating brake, pin is in the least significant end of strip pin-and-hole, and power transmission shaft moves and drives pull bar to move, and active force is applied directly on the axle that insulated tension pole end is provided with by pull bar, and then makes moving contact and fixed contact disjunction, realizes separating brake; During combined floodgate, power transmission shaft moves and pull bar is moved relative to axle in pin-and-hole, pressure is applied to Compress Spring, act on after Compress Spring pressurized on insulated tension pole, when pull bar moves to box end, also power is applied to insulated tension pole simultaneously, dual active force is applied on insulated tension pole, and moving contact is contacted fast with fixed contact, realizes closing a floodgate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of single-pole vacuum circuit breaker that embodiment 1 provides.
Fig. 2 is the partial structurtes schematic diagram of a kind of single-pole vacuum circuit breaker that embodiment 1 provides.
Fig. 3 is pole and the insulated tension pole assembly structure schematic diagram of a kind of single-pole vacuum circuit breaker that embodiment 1 provides.
Fig. 4 is the contour structures left view of a kind of single-pole vacuum circuit breaker that this enforcement 1 provides.
Fig. 5 is the contour structures front view of a kind of single-pole vacuum circuit breaker that this enforcement 1 provides.
In figure, mark is expressed as: 1-casing, 2-manual brake separating handle, 3-pole, the upper outlet terminal of 4-, wire outlet seat under 5-, 6-current transformer, 7-permanent magnet mechanism, 8-permanent magnetism fixed head, the rotating shaft of 9-separating brake, 91-cursor, 10-separating brake back-moving spring, 11-guide holder, 12-insulated tension pole, 121-axle, 13-vacuum interrupter, 131-fixed contact, 132-moving contact, 14-connecting plate, 15-travel switch, 16-axle, 17-tripping spring, 18-power transmission shaft, 181-flange, 19-pull bar, 20-conductive clip, 21-adjusting screw(rod), 22-driver plate, 23-sells, 24-Compress Spring.
Embodiment
embodiment 1
As depicted in figs. 1 and 2, the present embodiment provides a kind of single-pole vacuum circuit breaker to comprise pole 3, vacuum interrupter 13 is provided with in described pole 3, fixed contact 131 and moving contact 132 is provided with in described vacuum interrupter 13, described moving contact 132 is connected with insulated tension pole 12, also comprise the described insulated tension pole 12 of control to move, realize the operating mechanism of divide-shut brake, described operating mechanism comprises, the power transmission shaft 18 be connected with described insulated tension pole 12, and control the permanent magnet mechanism 7 of described power transmission shaft 18 movement, during electronic separating brake, the switching winding of described permanent magnet mechanism 7 obtains electric, in permanent magnet mechanism 7, dynamic iron core pulls described power transmission shaft 18 and described insulated tension pole 12 to make breaker open operation, when circuit breaker is in gate-dividing state, described permanent magnet mechanism 7 closing coil obtains electric, the interior dynamic iron core of permanent magnet mechanism 7 promotes described power transmission shaft 18 and described insulated tension pole 12 makes breaker closing.
The single-pole vacuum circuit breaker of said structure, control power transmission shaft 18 by adopting permanent magnet mechanism and move the divide-shut brake realizing circuit breaker, namely during electronic separating brake, the switching winding of described permanent magnet mechanism 7 obtains electric, in the magnetic field Direct driver permanent magnet mechanism 7 produced by the exciting current of coil, dynamic iron core pulls described power transmission shaft 18 and described insulated tension pole 12 to move, make described moving contact 132 and the disjunction of described fixed contact 131, breaker open operation, when circuit breaker is in gate-dividing state, described permanent magnet mechanism 7 closing coil obtains electric, the interior dynamic iron core of the magnetic field Direct driver permanent magnet mechanism 7 produced by the exciting current of coil promotes described power transmission shaft 18 and described insulated tension pole 12 moves, described moving contact 132 is contacted with described fixed contact 131, breaker closing.Permanent magnet mechanism 7 instead of in conventional circuit breaker and adopts spring structure to realize divide-shut brake process, without the need to arranging force-reducing mechanism of the prior art and complicated jointed gear unit again in circuit breaker, make circuit breaker overall structure simple, take up room little, simple to operate, mechanical endurance often, dependable performance, reduce the generation of fault, improve the useful life of circuit breaker.
Particularly, described pole 3 is fixed on the outside of casing 1 by connecting plate 14, and described operating mechanism is fixed on the inner side of described casing 1 by described connecting plate 14.The entirety of circuit breaker takes up room less, is convenient to processing and manufacturing and assembling, and it is all convenient to install or carry.
Further, described permanent magnet mechanism 7 is fixed on described connecting plate 14 by permanent magnetism fixed head 8, permanent magnet mechanism 7 is fixedly connected with, wherein with described casing 1, described permanent magnetism fixed head 8 is on the whole in "Ji" type, it comprises the base plate be threaded with described permanent magnet mechanism 7, the top board be threaded with described connecting plate 14, and is connected to two sidewalls between described top board and described base plate, wherein, power transmission shaft 18 is arranged in the space between two sidewalls, compact conformation, and transmission stability is good.More specifically, described two side, a sidewall is provided with the pin 23 for fixing described separating brake back-moving spring 10, and another sidewall is provided with the screwed hole for being fixedly connected with described travel switch 15, described base plate offers the through hole being suitable for described power transmission shaft 18 and passing.Further, be provided with guide holder 11 in described power transmission shaft 18 both sides, described guide holder 11 is fixedly connected on described connecting plate 14.
Described operating mechanism also comprises manual brake separating mechanism, described manual brake separating mechanism comprises, be connected to the separating brake rotating shaft 9 on described casing 1 rotationally, to be positioned at outside described casing 1 and the manual brake separating handle 2 be fixedly connected in described separating brake rotating shaft 9, described separating brake rotating shaft 9 is fixedly connected with cursor 91, described power transmission shaft 18 correspondence is provided with flange 181, and the separating brake back-moving spring 10 for making described cursor 91 be separated with described flange 181; Described separating brake rotating shaft 9 rotation under the pulling of described manual brake separating handle 2, described cursor 91 is driven to be pressed against on described flange 181, breaker open operation, after unclamping described manual brake separating handle 2, under the effect of described separating brake back-moving spring 10, described cursor 91 is separated with described flange 181, and manual brake separating handle 2 resets to closing position.The manual brake separating mechanism arranged, in case when there is abnormal conditions or fault in the electronic divide-shut brake of permanent magnet mechanism 7, start the separating brake of manual brake separating mechanism to circuit breaker to control, the i.e. dual control mechanism of electronic divide-shut brake and manual brake separating mechanism, control the divide-shut brake of circuit breaker, the reliability of further raising circuit breaker, avoids the generation of fault, also improves the useful life of circuit breaker.
Specifically, preferred described separating brake back-moving spring 10 is extension spring, and on the pin 23 of one end hook on described permanent magnetism fixed head 8, the other end is hooked on described cursor 91.Whole manual brake separating mechanism is arranged at inside described permanent magnetism fixed head 8, makes whole operating mechanism compact conformation, stable transmission.
More preferably, described operating mechanism also comprises the testing agency for detecting circuit-breaker switching on-off position, it comprises the driver plate 22 be arranged on described power transmission shaft 18, and laying respectively at driver plate 22 both sides and the travel switch 15 arranged along described power transmission shaft 18 moving direction, described travel switch 15 is installed on described permanent magnetism fixed head 8.The operating state of remote monitoring circuit breaker is convenient in the setting of travel switch 15.
As shown in Figure 3, the two ends of described insulated tension pole 12 are embedded with connecting bolt respectively, one end is threaded with described moving contact 132, the other end is threadedly connected to axle 121, sheathed pull bar 19 on described axle 121 other end outer wall is also connected by pin, and described pull bar 19 other end is fixedly connected with described power transmission shaft 18.Specifically, preferably be provided with strip pin-and-hole vertically at described axle 121, described pull bar 19 can move along described strip pin-and-hole relative to described axle 121, between described pull bar 19 and described insulated tension pole 12 end, be also provided with Compress Spring 24, the initial elastic force of described Compress Spring 24 makes described pin be positioned at the least significant end of described strip pin-and-hole.Particularly, described Compress Spring 24 is set on the axle 121 between described pull bar 19 and described insulated tension pole 12 end, and Compress Spring 24 two ends are fixed by spring base.When separating brake, pin is in the least significant end of strip pin-and-hole, and power transmission shaft 18 moves and drives pull bar 19 to move, and active force is applied directly on the axle 121 that insulated tension pole 12 end is provided with by pull bar 19, and then makes moving contact 132 and fixed contact 131 disjunction, realizes separating brake; During combined floodgate, power transmission shaft 18 moves and pull bar 19 is moved relative to axle 121 in pin-and-hole, pressure is applied to Compress Spring 24, act on after Compress Spring 24 pressurized on insulated tension pole 12, when pull bar 19 moves to box end, also power is applied to insulated tension pole 12 simultaneously, dual active force is applied on insulated tension pole 12, and moving contact 132 is contacted fast with fixed contact 131, realizes closing a floodgate.
In order to promote in circuit breaker that moving contact 132 and fixed contact 131 are fast deciliter, described operating mechanism is also provided with tripping spring 17, tripping spring 17 one end is hooked on the axle 16 fixing with described power transmission shaft 18, and the other end is hooked on the described permanent magnetism fixed head 8 that is fixedly connected with described permanent magnet mechanism 7.During separating brake, power transmission shaft 18 is with moving axis 16 to move compression tripping spring 17 to permanent magnet mechanism 7 direction, and tripping spring 17 releases energy, and realizes separating brake; When separating brake is to combined floodgate transition, power transmission shaft 18 is with moving axis 16 to move to away from permanent magnet mechanism 7 direction, tripping spring 17 is stretched, active force is applied to axle 16, promote that power transmission shaft 18 moves to away from permanent magnet mechanism 7 direction, accelerate the speed that moving contact 132 is closed with fixed contact 131, realize making process fast.
Further, be connected by adjusting screw(rod) 21 with described power transmission shaft 18 at described pull bar 19, described adjusting screw(rod) 21 one end is threaded with described pull bar 19, the other end radially offers through hole, described axle 16 through the through hole of described adjusting screw(rod) 21, and passes radially through described power transmission shaft 18 and achieves a fixed connection.
As shown in Figure 4 and Figure 5, outlet terminal 4 is provided with on the upside of described fixed contact 131, be provided with lower wire end on the downside of described moving contact 132, lower wire end, through being fixed on the lower wire outlet seat 5 on described pole 3, is connected to the current transformer 6 outside described pole 3; More specifically, between described moving contact 132 and described insulated tension pole 12, hollow conductive pole is set, the built-in bolt in described insulated tension pole 12 end is threadedly connected to described moving contact 132 through described hollow conductive pole, also sheathed conductive clip 20 and being flexible coupling on conductive pole, be flexible coupling described in described conductive clip 20 is threadedly connected to, described lower wire end through described in be flexible coupling, with the described lower wire outlet seat 5 be fixedly connected with that is flexible coupling, be connected to described current transformer 6.
embodiment 2
The present embodiment provides a kind of vacuum circuit-breaker, is with the difference of embodiment 1: described power transmission shaft 18 is radially provided with through hole, and described axle 16, through the through hole of described power transmission shaft 18, realizes being fixedly connected with of described power transmission shaft 18 and axle 16.Certainly other be fixedly connected with mode, such as described axle 16 and described power transmission shaft 18 are radially adopted and to sell or this bolt is connected and fixed, as long as described power transmission shaft 18 is fixedly connected with axle 16, under the movement of power transmission shaft 18, drive described axle 16 to move, stretch or compress the tripping spring 17 that is hooked on described axle 16, other realizing circuit breaker divide-shut brake process are fast fixedly connected with mode.
embodiment 3
The present embodiment provides a kind of vacuum circuit-breaker, be with the difference of embodiment 1: the axle 121 that described insulated tension pole 12 threaded one end is connected, directly be fixedly connected on described power transmission shaft 18, its can with bolts, pin connects etc. is variously fixedly connected with mode.Move axially the described insulated tension pole 12 of lower direct drive at power transmission shaft 18 to move, make described moving contact 132 and fixed contact 131 deciliters, realize the divide-shut brake process of circuit breaker.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (10)
1. a single-pole vacuum circuit breaker, comprise pole (3), vacuum interrupter (13) is provided with in described pole (3), fixed contact (131) and moving contact (132) is provided with in described vacuum interrupter (13), described moving contact (132) is connected with insulated tension pole (12), also comprise the described insulated tension pole of control (12) mobile, realize the operating mechanism of divide-shut brake, it is characterized in that: described operating mechanism comprises, the power transmission shaft (18) be connected with described insulated tension pole (12), and control the permanent magnet mechanism (7) of described power transmission shaft (18) movement, during electronic separating brake, the switching winding of described permanent magnet mechanism (7) obtains electric, in permanent magnet mechanism (7), dynamic iron core pulls described power transmission shaft (18) and described insulated tension pole (12) to make breaker open operation, when circuit breaker is in gate-dividing state, described permanent magnet mechanism (7) closing coil obtains electric, the interior dynamic iron core of permanent magnet mechanism (7) promotes described power transmission shaft (18) and described insulated tension pole (12) makes breaker closing.
2. single-pole vacuum circuit breaker according to claim 1, it is characterized in that: described pole (3) is fixed on the outside of casing (1) by connecting plate (14), described operating mechanism is fixed on the inner side of described casing (1) by described connecting plate (14).
3. single-pole vacuum circuit breaker according to claim 2, is characterized in that: described permanent magnet mechanism (7) is fixed on described connecting plate (14) by permanent magnetism fixed head (8).
4. according to the arbitrary described single-pole vacuum circuit breaker of claim 1-3, it is characterized in that: described operating mechanism also comprises tripping spring (17), described tripping spring (17) one end is hooked on the axle (16) fixing with described power transmission shaft (18), and the other end is hooked on the described permanent magnetism fixed head (8) that is fixedly connected with described permanent magnet mechanism (7).
5. according to the arbitrary described single-pole vacuum circuit breaker of claim 1-4, it is characterized in that: described operating mechanism also comprises manual brake separating mechanism, described manual brake separating mechanism comprises, be connected to the separating brake rotating shaft (9) on described casing (1) rotationally, be positioned at described casing (1) outside and the manual brake separating handle (2) be fixedly connected on described separating brake rotating shaft (9), described separating brake rotating shaft (9) is fixedly connected with cursor (91), described power transmission shaft (18) correspondence is provided with flange (181), and the separating brake back-moving spring (10) for making described cursor (91) be separated with described flange (181), the rotation under the pulling of described manual brake separating handle (2) of described separating brake rotating shaft (9), described cursor (91) is driven to be pressed against on described flange (181), breaker open operation, after unclamping described manual brake separating handle (2), under the effect of described separating brake back-moving spring (10), described cursor (91) is separated with described flange (181), and manual brake separating handle (2) resets to closing position.
6. single-pole vacuum circuit breaker according to claim 5, is characterized in that: described separating brake back-moving spring (10) is extension spring, and on the pin (23) of one end hook on described permanent magnetism fixed head (8), the other end is hooked on described cursor (91).
7. according to the arbitrary described single-pole vacuum circuit breaker of claim 3-6, it is characterized in that: also comprise the testing agency for detecting circuit-breaker switching on-off position, it comprises the driver plate (22) be arranged on described power transmission shaft (18), and laying respectively at driver plate (22) both sides and the travel switch (15) arranged along described power transmission shaft (18) moving direction, described travel switch (15) is installed on described permanent magnetism fixed head (8).
8. according to the arbitrary described a kind of single-pole vacuum circuit breaker of claim 1-7, it is characterized in that: the two ends of described insulated tension pole (12) are embedded with connecting bolt respectively, one end is threaded with described moving contact (132), the other end is threadedly connected to axle (121), sheathed pull bar (19) on described axle (121) other end outer wall is also connected by pin, and described pull bar (19) other end is fixedly connected with described power transmission shaft (18).
9. a kind of single-pole vacuum circuit breaker according to claim 8, it is characterized in that: described axle (121) is provided with strip pin-and-hole vertically, described pull bar (19) can move along described strip pin-and-hole relative to described axle (121), between described pull bar (19) and described insulated tension pole (12) end, be also provided with Compress Spring (24), the initial elastic force of described Compress Spring (24) makes described pin be positioned at the least significant end of described strip pin-and-hole.
10. a kind of single-pole vacuum circuit breaker according to claim 8 or claim 9, it is characterized in that: described pull bar (19) is connected by adjusting screw(rod) (21) with described power transmission shaft (18), described adjusting screw(rod) (21) one end is threaded with described pull bar (19), the other end radially offers through hole, described axle (16) through the through hole of described adjusting screw(rod) (21), and passes radially through described power transmission shaft (18) and achieves a fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510143132.4A CN104715964B (en) | 2015-03-30 | 2015-03-30 | A kind of single-pole vacuum circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510143132.4A CN104715964B (en) | 2015-03-30 | 2015-03-30 | A kind of single-pole vacuum circuit breaker |
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| CN104715964B CN104715964B (en) | 2017-08-01 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161352A (en) * | 2015-09-23 | 2015-12-16 | 陕西西高开关有限责任公司 | Novel high-voltage circuit breaker |
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| CN108597949A (en) * | 2018-07-11 | 2018-09-28 | 吉林省固和泰机械有限责任公司 | Vacuum falling type switch |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN109036952A (en) * | 2018-08-29 | 2018-12-18 | 浙江紫光电器有限公司 | A kind of switching acceleration mechanism of vacuum circuit breaker |
| CN109859983A (en) * | 2018-12-29 | 2019-06-07 | 国网河南省电力公司新乡供电公司 | A kind of 10 KV hot-line work arc-extinction devices |
| CN110634716A (en) * | 2019-08-20 | 2019-12-31 | 江苏省如高高压电器有限公司 | Single-stage circuit breaker |
| CN111477519A (en) * | 2020-04-27 | 2020-07-31 | 李凤玲 | Vacuum circuit breaker |
| CN112447440A (en) * | 2020-11-10 | 2021-03-05 | 安徽合凯电气科技股份有限公司 | Medium-voltage zero-crossing control module |
| CN113284769A (en) * | 2021-02-05 | 2021-08-20 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
| CN117476396A (en) * | 2023-12-14 | 2024-01-30 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161352A (en) * | 2015-09-23 | 2015-12-16 | 陕西西高开关有限责任公司 | Novel high-voltage circuit breaker |
| CN105406595A (en) * | 2015-11-27 | 2016-03-16 | 宁波三星医疗电气股份有限公司 | Split-type intelligent switch for distribution network |
| CN108962667A (en) * | 2018-07-05 | 2018-12-07 | 山东普益电气有限公司 | A kind of high pressure bistable state side activated speed vacuum circuit breaker |
| CN108962667B (en) * | 2018-07-05 | 2023-09-15 | 山东正本电气有限公司 | High-voltage bistable side-driven high-speed vacuum circuit breaker |
| CN108597949A (en) * | 2018-07-11 | 2018-09-28 | 吉林省固和泰机械有限责任公司 | Vacuum falling type switch |
| CN108597949B (en) * | 2018-07-11 | 2023-12-08 | 吉林省固和泰机械有限责任公司 | Vacuum drop-out switch |
| CN109036952A (en) * | 2018-08-29 | 2018-12-18 | 浙江紫光电器有限公司 | A kind of switching acceleration mechanism of vacuum circuit breaker |
| CN109036952B (en) * | 2018-08-29 | 2024-04-16 | 浙江紫光电器有限公司 | Switching brake accelerating mechanism of vacuum circuit breaker |
| CN109859983A (en) * | 2018-12-29 | 2019-06-07 | 国网河南省电力公司新乡供电公司 | A kind of 10 KV hot-line work arc-extinction devices |
| CN110634716B (en) * | 2019-08-20 | 2022-06-07 | 江苏省如高高压电器有限公司 | Single-stage circuit breaker |
| CN110634716A (en) * | 2019-08-20 | 2019-12-31 | 江苏省如高高压电器有限公司 | Single-stage circuit breaker |
| CN111477519B (en) * | 2020-04-27 | 2022-03-04 | 上海振能信息科技有限公司 | Vacuum circuit breaker |
| CN111477519A (en) * | 2020-04-27 | 2020-07-31 | 李凤玲 | Vacuum circuit breaker |
| CN112447440A (en) * | 2020-11-10 | 2021-03-05 | 安徽合凯电气科技股份有限公司 | Medium-voltage zero-crossing control module |
| CN113284769B (en) * | 2021-02-05 | 2022-02-25 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
| CN113284769A (en) * | 2021-02-05 | 2021-08-20 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
| CN117476396A (en) * | 2023-12-14 | 2024-01-30 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
| CN117476396B (en) * | 2023-12-14 | 2024-05-03 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
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