CN208315453U - A kind of double-fracture switched capacitor group vacuum circuit breaker - Google Patents
A kind of double-fracture switched capacitor group vacuum circuit breaker Download PDFInfo
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- CN208315453U CN208315453U CN201820598599.7U CN201820598599U CN208315453U CN 208315453 U CN208315453 U CN 208315453U CN 201820598599 U CN201820598599 U CN 201820598599U CN 208315453 U CN208315453 U CN 208315453U
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- vacuum
- fixed shell
- vacuum interrupter
- pull rod
- double
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Abstract
The utility model discloses a kind of double-fracture switched capacitor group vacuum circuit breakers, operating mechanism, transmission mechanism and the conductive component being sequentially arranged including level, conductive component includes every phase in horizontal two vacuum interrupters setting up and down, and the moved end of two vacuum interrupters is mutually shorted by being flexible coupling；Transmission mechanism includes fixed shell, vacuum interrupter is fixedly arranged on fixed shell side, fixed shell slidably connects insulated pull rod far from the side level of vacuum interrupter, hingedly there are two connecting rods for the one end of insulated pull rod towards vacuum interrupter, the other end of two connecting rods has been respectively articulated with connecting lever, the other end of two connecting levers is hingedly connected on fixed shell, and the moved end of two vacuum interrupters is hingedly connected on opposite connecting lever.The synchronism of double vacuum interrupters is easy to reach, while operating mechanism is relatively gentle to the active force of insulated pull rod, and the impact force of operating mechanism is small, and the contact bounce in vacuum extinction room is small；Product overall volume is small, suitable for using in gas-filling cabinet.
Description
Technical field
The utility model relates to electric switch equipment field, in particular to a kind of series connection suitable for gas insulation switch cabinet
Double-fracture switched capacitor group vacuum circuit breaker.
Background technique
The effect that reactive power compensation device is undertaken in power supply system is to improve the power factor (PF) of power grid, reduces power supply
The loss of transformer and conveying circuit improves power supply efficiency, improves power supply efficiency, improves power supply environment.Improve power factor (PF) most
Cost-effective method is exactly to install shunt capacitor group, and vacuum circuit breaker with double breaks is proved in switched capacitor group, tool
Have it is extremely low restrike probability and stronger insulation recovery performance, technical advantage it is obvious.The technology applied at present is such as: Chinese patent Shen
Switched capacitor group vacuum switch, 201410011721.2 please be pressed for cutting capacitor group gas in numbers 201310213597.3
The vacuum circuit breaker of insulated switch cabinet, a kind of 201320678573.0 capacitor group switching vacuum circuit breakers.
But there are still some disadvantages in the prior art: 1, requirement of the characteristic of vacuum interrupter to operating mechanism compared with
Height, on the one hand requires the synchronism of double vacuum interrupters, at the same the power producing characteristics of operating mechanism just when single vacuum interrupter
2 times, when the dynamic/static contact of vacuum interrupter just contacts, due to the mutation of power, the impact force of operating mechanism is big, leads to contact
Spring is difficult to control；2, the size of the existing breaker for gas-filling cabinet is excessively high, is unfavorable for the miniaturization of breaker.
Utility model content
The purpose of the utility model is to provide a kind of double-fracture switched capacitor group vacuum circuit breakers, and having improves operation
The characteristic requirements of mechanism power, and be conducive to breaker and minimize, it is suitble to installing and using in gas-filling cabinet.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of double-fracture switched capacitor group vacuum circuit breaker, operating mechanism, the transmission mechanism being sequentially arranged including level
And conductive component,
The conductive component includes every phase in horizontal two vacuum interrupters setting up and down, two vacuum interrupters
Moved end be mutually shorted by being flexible coupling；
The transmission mechanism includes fixed shell, and the vacuum interrupter is fixedly arranged on fixed shell side, and the vacuum is gone out
The moved end of arc chamber is located in set casing body, and the fixed shell slidably connects insulation far from the side level of vacuum interrupter and draws
Bar, the insulated pull rod are driven by operating mechanism, and the insulated pull rod is slidably connected to two vacuum interrupter middles, institute
Stating the one end of insulated pull rod towards vacuum interrupter, hingedly there are two connecting rods, and the other end of two connecting rods, which has been respectively articulated with, to turn
Arm, the other end of two connecting levers are hingedly connected on fixed shell, and two connecting rods and two connecting levers distinguish water
Flat symmetrical, the moved end of two vacuum interrupters is hingedly connected on opposite connecting lever；
The moved end of the vacuum interrupter includes guide rod, and the guide rod includes guide section and push-and-pull section, the push-and-pull
The outer diameter of section is greater than the outer diameter of guide section, offers long lumbar hole among the push-and-pull section, slidably connects pin in the long lumbar hole
Two, the pin two is rotationally connected on connecting lever, is arranged with spring overcoat outside the guide rod, the spring overcoat passes through with connecting lever
Pin two is hinged, and the spring overcoat is interior, guide section is externally provided with excess of stroke spring, the one end of the spring overcoat far from vacuum interrupter
It is convexly equipped with boss inwardly, the excess of stroke spring is butted between boss and push-and-pull section.
As a kind of improvement of the utility model, guide groove, the hinge of the insulated pull rod are offered on the fixed shell
End is connect to be set in guide groove.
By using above scheme, play the role of guiding to the hinged end of insulated pull rod, it is ensured that insulated pull rod it is hinged
Mobile in the middle of transmission mechanism active force uniform force on guarantee insulated pull rod hinged end is held, and can preferably mutually
It offsets, more preferably plays the role of damping.
As a kind of improvement of the utility model, the hinged end of the insulated pull rod is equipped with idler wheel, and the idler wheel rolls
It is connected in guide groove.
By using above scheme, reduce frictional force of the hinged end of insulated pull rod in moving process, so that insulation
Pull rod more smoothly, improves the sensitivity of breaker on/off switch when moving, reduces abrasion, improves product service life.
As a kind of improvement of the utility model, the vacuum interrupter is fixedly arranged on fixed hull outside by insulating part,
Side on the insulating part far from vacuum interrupter is equipped with the terminals being connected with the static side of vacuum interrupter.
By using above scheme, guarantee the insulating properties of vacuum circuit breaker, improves safety.
As a kind of improvement of the utility model, including bottom plate, fixed plate, the fixed shell are installed on the bottom plate
It is fixedly arranged in fixed plate by supporting insulator.
In conclusion the utility model has the following beneficial effects:
1, the synchronism of double vacuum interrupters is easy to reach, while operating mechanism is relatively flat to the active force of insulated pull rod
Slow, the impact force of operating mechanism is small, and the contact bounce in vacuum extinction room is small；2, due to vacuum interrupter lateral arrangement, volume
It is small, suitable for being used in gas-filling cabinet.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dual-port switched capacitor group vacuum circuit breaker；
Fig. 2 is a kind of top view of dual-port switched capacitor group vacuum circuit breaker；
Fig. 3 is the cross-sectional view (gate-dividing state figure) of A-A in Fig. 2；
Fig. 4 is the enlarged drawing of I in Fig. 3；
Fig. 5 is a kind of dual-port switched capacitor group vacuum circuit breaker "on" position figure；
Fig. 6 is that operating mechanism compares figure to the force characteristics curve of insulated pull rod.
In figure, 1, bottom plate；2, fixed plate；3, supporting insulator；4, insulated pull rod；5, it ships and resell on another market；6, connecting rod；7, excess of stroke bullet
Spring；8, spring overcoat；9, guide rod；91, guide section；92, section is pushed and pulled；93, long lumbar hole；10, pin one；11, pin two；12, pin three；
13, connecting lever；14, fixed shell；141, guide groove；15, it is flexible coupling；16, insulating part；17, vacuum interrupter；18, terminals；
19, idler wheel.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
Referring to figure 1, figure 2 and figure 3, a kind of double-fracture switched capacitor group vacuum circuit breaker is sequentially arranged including level
Operating mechanism (not showing place in figure), transmission mechanism and conductive component.
Conductive component includes every phase in horizontal two vacuum interrupters 17 setting up and down, two vacuum interrupters 17 it is dynamic
End is shorted by 15 phases that are flexible coupling；Transmission mechanism includes fixed shell 14, and vacuum interrupter 17 is solid with bolt by insulating part 16
It is scheduled on the right side of fixed shell 14, insulating part 16 can be processed by insulation board and be replaced, far from vacuum interrupter 17 on insulating part 16
Side be equipped with the terminals 18 that are connected with the static side of vacuum interrupter 17, the moved end of vacuum interrupter 17 is located at fixation shell 14
Interior, fixed shell 14 slidably connects insulated pull rod 4 far from the side level of vacuum interrupter 17, and insulated pull rod 4 passes through operation
Mechanism driving, operating mechanism are the Conventional mechanisms in existing vacuum circuit breaker field, and therefore not to repeat here.
Insulated pull rod 4 is slidably connected to the middle of two vacuum interrupters 17, the left end of insulated pull rod 4 and operating mechanism
Connection, for the right end of insulated pull rod 4 by shipping and reselling on another market 5 hingedly there are two connecting rod 6, the other end of two connecting rods 6 passes through pin 1 respectively
It is hinged with connecting lever 13, the other end of two connecting levers 13 passes through pin 3 12 respectively and is articulated on fixed shell 14, two connecting rods 6 and two
A connecting lever 13 distinguishes horizontal symmetrical, and the moved end of two vacuum interrupters 17 is hingedly connected on opposite connecting lever 13.
Referring to fig. 4, the moved end of vacuum interrupter 17 includes guide rod 9, and guide rod 9 includes from outside to 17 side of vacuum interrupter
To the guide section 91 and push-and-pull section 92 being sequentially connected, the outer diameter of push-and-pull section 92 is greater than the outer diameter of guide section 91, pushes and pulls in section 92
Between offer long lumbar hole 93, pin 2 11 is slidably connected in long lumbar hole 93, pin 2 11 is rotationally connected on connecting lever 13, guide rod 9
It is hinged by pin 2 11 that it is arranged with spring overcoat 8, spring overcoat 8 and connecting lever 13 outside, in spring overcoat 8,91 peripheral hardware of guide section
There is excess of stroke spring 7, is convexly equipped with boss 81 inwardly in the one end of spring overcoat 8 far from vacuum interrupter 17, excess of stroke spring 7 is butted on convex
Between platform 81 and push-and-pull section 92.
Referring to Fig. 1 and Fig. 2, guide groove 141 is offered on fixed shell 14, is located in the hinged end of insulated pull rod 4 and turns
The both ends of pin 5 are respectively sleeved on idler wheel 19, and the rolling of idler wheel 19 is connected in guide groove 141.
Referring to Fig. 1 and Fig. 3, a kind of double-fracture switched capacitor group vacuum circuit breaker further includes bottom plate 1, the right side of bottom plate 1
It is fixedly installed with fixed plate 2, fixed shell 14 is fixedly connected in fixed plate 2 by supporting insulator 3, and operating mechanism is mounted on
The left side of bottom plate 2, and pass through bottom plate 2 and connect with insulated pull rod 4.
Referring to Fig. 3, Fig. 4 and Fig. 5, when combined floodgate, insulated pull rod 4 moves right under the driving of operating mechanism, insulated pull rod 4
Drive connecting rod 6 that connecting lever 13 is rotated using the axis of pin 3 12 as center of rotation towards 17 direction of vacuum interrupter, connecting lever 13 is turning
During dynamic, the pin 2 11 on connecting lever 13 first drives spring overcoat 8 mobile towards 17 direction of vacuum interrupter, and spring overcoat 8 is moving
Excess of stroke spring 7 is squeezed during dynamic, the active force of excess of stroke spring 7 is gradually increased, until pin 2 11 is butted on 93 other end of long lumbar hole,
Moment pushes guide rod 9, so that the dynamic and static contact in vacuum interrupter 17.
Compared with conventional circuit breaker operation mechanism is to the force characteristics of insulated pull rod, as shown in fig. 6, ABCD is conventional
Force characteristics curve of the circuit breaker operation mechanism to insulated pull rod, A: gate-dividing state is (specified equal to vacuum interrupter to open away under
Counter-force)；B: (equal to the self-closing power of vacuum arc-extinguishing chamber contact) when vacuum interrupter just closes；C: the precompression of excess of stroke spring；D:
"on" position.It can be seen that very big in the power that CD sections of operating mechanisms are subject to.Abcd is circuit breaker operation mechanism pair of the invention
The force characteristics curve of insulated pull rod, cd sections of curves are gentle, and transmission process impact force is small.By to connecting rod in actual design
6 and 13 size of connecting lever change, different characteristic needs can be obtained.This is compared with insulated pull rod pushes directly on, to operation machine
The reaction force of structure is gentler, reduces impact force, while (the dynamic and static touching in double vacuum extinction rooms of vacuum interrupter synchronism
Head contacts simultaneously) it is easy to control；Integral product is compact-sized, is adapted for mount in gas-filling cabinet and uses.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (5)
1. a kind of double-fracture switched capacitor group vacuum circuit breaker, which is characterized in that including level be sequentially arranged operating mechanism,
Transmission mechanism and conductive component,
The conductive component includes every phase in horizontal two vacuum interrupters (17) setting up and down, two vacuum interrupters
(17) moved end by be flexible coupling (15) be mutually shorted；
The transmission mechanism includes fixed shell (14), and the vacuum interrupter (17) is fixedly arranged on fixed shell (14) side, institute
The moved end for stating vacuum interrupter (17) is located in fixed shell (14), and the fixed shell (14) is far from vacuum interrupter (17)
Side level slidably connects insulated pull rod (4), and the insulated pull rod (4) is driven by operating mechanism, the insulated pull rod (4)
Two vacuum interrupter (17) middles are slidably connected to, the insulated pull rod (4) is cut with scissors towards one end of vacuum interrupter (17)
It connects there are two connecting rod (6), the other end of two connecting rods (6) has been respectively articulated with connecting lever (13), two connecting levers (13)
The other end is hingedly connected on fixed shell (14), two connecting rods (6) and two connecting levers (13) difference horizontal symmetricals,
The moved end of two vacuum interrupters (17) is hingedly connected on opposite connecting lever (13)；
The moved end of the vacuum interrupter (17) includes guide rod (9), and the guide rod (9) includes guide section (91) and push-and-pull section
(92), the outer diameter of push-and-pull section (92) is greater than the outer diameter of guide section (91), offers long lumbar hole among the push-and-pull section (92)
(93), pin two (11) is slidably connected in the long lumbar hole (93), the pin two (11) is rotationally connected on connecting lever (13), described
It is arranged with spring overcoat (8) outside guide rod (9), the spring overcoat (8) and connecting lever (13) pass through pin two (11) hingedly, the bullet
Spring housing (8) is interior, guide section (91) is externally provided with excess of stroke spring (7), and the one of the spring overcoat (8) separate vacuum interrupter (17)
End is convexly equipped with boss (81) inwardly, and the excess of stroke spring (7) is butted between boss (81) and push-and-pull section (92).
2. a kind of double-fracture switched capacitor group vacuum circuit breaker according to claim 1, which is characterized in that the fixation
It is offered on shell (14) guide groove (141), the hinged end of the insulated pull rod (4) is set in guide groove (141).
3. a kind of double-fracture switched capacitor group vacuum circuit breaker according to claim 2, which is characterized in that the insulation
The hinged end of pull rod (4) is equipped with idler wheel (19), and the idler wheel (19), which rolls, to be connected in guide groove (141).
4. a kind of double-fracture switched capacitor group vacuum circuit breaker according to claim 1, which is characterized in that the vacuum
Arc-chutes (17) are fixedly arranged on the outside of fixed shell (14) by insulating part (16), far from vacuum interrupter on the insulating part (16)
(17) side is equipped with the terminals (18) being connected with the static side of vacuum interrupter.
5. a kind of double-fracture switched capacitor group vacuum circuit breaker according to claim 1, which is characterized in that including bottom plate
(1), it is installed with fixed plate (2) on the bottom plate (1), the fixed shell (14) is fixedly arranged on fixation by supporting insulator (3)
On plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820598599.7U CN208315453U (en) | 2018-04-25 | 2018-04-25 | A kind of double-fracture switched capacitor group vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820598599.7U CN208315453U (en) | 2018-04-25 | 2018-04-25 | A kind of double-fracture switched capacitor group vacuum circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN208315453U true CN208315453U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820598599.7U Active CN208315453U (en) | 2018-04-25 | 2018-04-25 | A kind of double-fracture switched capacitor group vacuum circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111968877A (en) * | 2020-09-17 | 2020-11-20 | 安徽普众机电有限公司 | High-voltage vacuum circuit breaker structure |
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2018
- 2018-04-25 CN CN201820598599.7U patent/CN208315453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111968877A (en) * | 2020-09-17 | 2020-11-20 | 安徽普众机电有限公司 | High-voltage vacuum circuit breaker structure |
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