CN105788954B - A kind of vacuum circuit breaker - Google Patents
A kind of vacuum circuit breaker Download PDFInfo
- Publication number
- CN105788954B CN105788954B CN201610324612.5A CN201610324612A CN105788954B CN 105788954 B CN105788954 B CN 105788954B CN 201610324612 A CN201610324612 A CN 201610324612A CN 105788954 B CN105788954 B CN 105788954B
- Authority
- CN
- China
- Prior art keywords
- push rod
- contact
- groove
- operating portion
- supporting part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- Push-Button Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of vacuum circuit breaker,The present invention includes being internally provided with the housing of cavity,Static contact,Moving contact,Switch movable contact,Operating portion,Telescopic pin and push rod,Enclosure interior is provided with dividing plate,Cavity is divided into upper plenum and lower cavity by dividing plate,Static contact is arranged on the top of upper plenum,Moving contact is arranged on the lower section of static contact,Moving contact is fixed on push rod top,Switch movable contact is arranged on the bottom of lower cavity,Push rod bottom is extend into operating portion,Under housing first groove and second groove are symmetrically arranged with cavity madial wall both sides,Institute's push rod bottom is provided with slideway,Telescopic pin is arranged in slideway,When being contacted the beneficial effects of the invention are as follows moving contact with static contact,The supporting part at telescopic pin both ends is stretched into first groove,Supporting part outer end downside contacts with first groove downside,Ensure that vacuum circuit breaker prevents the brake hop of breaker under "on" position,The present invention is simple in construction,Manufacturing cost is low.
Description
Technical field
The invention belongs to power domain, more particularly to a kind of vacuum circuit breaker.
Background technology
In a power distribution system, existing vacuum circuit breaker is arranged with locking device in gate-dividing state, avoids maloperation, but
Locking device is also equipped with order to ensure the normal work of vacuum circuit breaker, in prior art under vacuum circuit breaker "on" position to lead to
Breaker is locked frequently with magnet, to solve the brake hop of breaker, but the magnetic of magnet is easily influenceed by external magnetic field
Locking device is caused to fail.
The content of the invention
The technical problem to be solved in the present invention is：A kind of vacuum circuit breaker is provided, ensures vacuum circuit breaker in "on" position
The lower brake hop for solving breaker, ensure the normal work of vacuum circuit breaker.
In order to solve the above-mentioned technical problem, the present invention includes：It is internally provided with the housing of cavity, static contact, moving contact, opens
Close moving contact, operating portion, telescopic pin and push rod, the enclosure interior and be provided with dividing plate, cavity is divided into overhead by the dividing plate
Chamber and lower cavity, are provided with pilot hole on the dividing plate, and in the push rod upper end insertion pilot hole, the static contact is arranged on
The top of cavity, the moving contact are arranged on the lower section of static contact, and the moving contact is fixed on push rod top, the switch movable contact
Head is arranged on the bottom of lower cavity, and the operating portion is the open cylinder in upper end, and the bottom plate of operating portion is fixed on switch movable contact
Middle part, the push rod bottom extend into operating portion, and the push rod bottom is provided with cavern part, the switch movable contact overhead
It is slidably connected in insertion cavern part with push rod, first groove and the second ditch is symmetrically arranged with cavity madial wall both sides under housing
Groove, first groove are located at second groove top, and the downside of the first groove and second groove is vertical with push rod axis, and second
The angle of groove upper side and push rod axis is acute angle, and the telescopic pin includes the bullet of two supporting parts of two supporting parts and connection
Property telescopic element, supporting part outer end downside is vertical with push rod axis, supporting part outer end upper side and push rod
Angle is acute angle, and the push rod bottom is provided with slideway, and the slideway is vertical with push rod axis, and the telescopic pin is arranged on slideway
In, through hole is symmetrically arranged with the handle portion sides, the supporting part at the telescopic pin both ends stretches out from the through hole, when dynamic
When contact contacts with static contact, switch movable contact upper surface contacts with the bottom of cavern part, and the supporting part at telescopic pin both ends stretches into
In first groove, supporting part outer end downside contacts with first groove downside, when moving contact separates with static contact, switch
Moving contact upper surface separates with the bottom of cavern part, and operating portion bottom surface contacts with cavity floor under housing, under supporting part outer end
Side contacts with the downside of second groove, the upper surface of the through hole in handle portion sides and supporting part outer end upper side
Contact.
As a further improvement on the present invention, the elastic telescopic element is helical spring.
The beneficial effects of the invention are as follows：The vacuum circuit breaker of the present invention, when moving contact contacts with static contact, telescopic pin both ends
Supporting part stretch into first groove, supporting part outer end downside contacts with first groove downside, ensure vacuum circuit breaker
The brake hop of breaker is prevented under "on" position, the present invention is simple in construction, and manufacturing cost is low, ensures the normal of vacuum circuit breaker again
Work.
Brief description of the drawings
Fig. 1 is structural representation when vacuum circuit breaker closes a floodgate in the present invention；
Structural representation when Fig. 2 is vacuum circuit breaker separating brake in the present invention；
Fig. 3 is the partial enlarged drawing of A parts in Fig. 1.
Wherein：1st, static contact, 2, housing, 3, operating portion, 4, moving contact, 5, cavern part, 6, telescopic pin, 7, fastener, 8,
Switch movable contact, 9, first groove, 10, second groove, 11, push rod, 61, supporting part, 62, elastic telescopic element.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention includes：The present invention includes：It is internally provided with housing 2, the static contact of cavity
1st, moving contact 4, switch movable contact 8, operating portion 3, telescopic pin 6 and push rod 11, the housing 2 are internally provided with dividing plate, it is described every
Cavity is divided into upper plenum and lower cavity by plate, and pilot hole is provided with the dividing plate, and pilot hole is inserted in the upper end of push rod 11
In, the static contact 1 is arranged on the top of upper plenum, and the moving contact 4 is arranged on the lower section of static contact 1, and the moving contact 4 is solid
The top of push rod 11 is scheduled on, the switch movable contact 8 is arranged on the bottom of lower cavity, and the operating portion 3 is the open cylinder in upper end,
The bottom plate fastener 7 of operating portion 3 is fixed on the middle part of switch movable contact 8, and the bottom of push rod 11 is extend into operating portion 3,
The bottom of push rod 11 is provided with cavern part 5, is slidably connected in the top of the switch movable contact 8 insertion cavern part 5 with push rod 11,
Housing is symmetrically arranged with first groove 9 and second groove 10 on 2 times cavity madial wall both sides, and first groove 9 is located at second groove
10 tops, the downside of the first groove 9 and second groove 10 is vertical with the axis of push rod 11, the upper side of second groove 10 and top
The angle of the axis of bar 11 is acute angle, and the telescopic pin 6 includes the elastic telescopic of two supporting parts 61 of two supporting parts 61 and connection
Element 62, the outer end downside of supporting part 61 is vertical with the axis of push rod 11, the outer end upper side of supporting part 61 and top
The angle of bar 11 is acute angle, and the bottom of push rod 11 is provided with slideway, and the slideway is vertical with the axis of push rod 11, the telescopic pin 6
It is arranged in slideway, is symmetrically arranged with through hole on the side of operating portion 3, the supporting part 61 at the both ends of telescopic pin 6 is from described
Stretched out in through hole.
During work, when switch movable contact 8 moves up, the top of switch movable contact 8 in cavern part 5 upward sliding until
The upper surface of switch movable contact 8 contacts the bottom of cavern part 5, and switch movable contact 8, which continues to move up, promotes push rod 11 to move up
Until moving contact 4 contacts with static contact 1, while the elongation of elastic telescopic element 62 promotes the supporting part 61 at both ends to stretch into first groove
In 9, now the outer end downside of supporting part 61 contacts with the downside of first groove 9, the through hole on the side of operating portion 3 it is upper
Surface does not contact with the outer end upper side of supporting part 61, and now electric current flows successively through switch movable contact 8, push rod 11, moves and touch
First 4 connect with the circuit of static contact 1.
When switch movable contact 8 moves down, operating portion 3 described first moves down under the drive of switch movable contact 8,
Until the upper side of the through hole on the side of operating portion 3 contacts with the outer end upper side of supporting part 61, now switch is dynamic
Contact 8 continues to move down, the upper side extruding outer end upper side of supporting part 61 of the through hole, the bullet under the extruding of supporting part 61
Property telescopic element 62 shortened by compression until the outer end of supporting part 61 departs from first groove 9 downside, the then outer end of supporting part 61
Portion slips into the upper side of second groove 10, and now moving contact 4 separates with static contact 1, while Circuit Interrupt, then switch movable contact 8
Continue to move down, the outer end of supporting part 61 moves down along the upper side of second groove 10, while elastic telescopic element 62 is gradual
Elongation, when when the bottom surface of operating portion 3 and housing, 2 times cavity floors contact, the outer end downside of supporting part 61 and second groove 10
Downside contacts.
Claims (2)
1. a kind of vacuum circuit breaker, including it is internally provided with the housing of cavity（2）, static contact（1）, moving contact（4）, switch movable contact
Head（8）And push rod（11）, the housing（2）Dividing plate is internally provided with, cavity is divided into upper plenum and lower cavity by the dividing plate,
Pilot hole, the push rod are provided with the dividing plate（11）In upper end insertion pilot hole, the static contact（1）It is arranged on upper plenum
Top, the moving contact（4）It is arranged on static contact（1）Lower section, the moving contact（4）It is fixed on push rod（11）Top, institute
State switch movable contact（8）It is arranged on the bottom of lower cavity, it is characterised in that：Also include operating portion（3）And telescopic pin（6）, it is described
Operating portion（3）For the cylinder that upper end is open, operating portion（3）Bottom plate be fixed on switch movable contact（8）Middle part, the push rod
（11）Bottom extend into operating portion（3）In, the push rod（11）Bottom is provided with cavern part（5）, the switch movable contact（8）Top
Portion inserts cavern part（5）Interior and push rod（11）It is slidably connected, housing（2）The first ditch is symmetrically arranged with lower cavity madial wall both sides
Groove（9）And second groove（10）, first groove（9）Positioned at second groove（10）Top, the first groove（9）And second groove
（10）Downside and push rod（11）Axis is vertical, second groove（10）Upper side and push rod（11）The angle of axis is acute angle,
The telescopic pin（6）Including two supporting parts（61）With two supporting parts of connection（61）Elastic telescopic element（62）, the branch
Support part（61）Outer end downside and push rod（11）Axis is vertical, the supporting part（61）Outer end upper side and push rod（11）Folder
Angle is acute angle, the push rod（11）Bottom is provided with slideway, the slideway and push rod（11）Axis is vertical, the telescopic pin（6）
It is arranged in slideway, the operating portion（3）Through hole, the telescopic pin are symmetrically arranged with side（6）The supporting part at both ends（61）
Stretched out from the through hole, work as moving contact（4）With static contact（1）During contact, switch movable contact（8）Upper surface and cavern part（5）
Bottom contact, telescopic pin（6）The supporting part at both ends（61）Stretch into first groove（9）In, supporting part（61）Outer end downside
With first groove（9）Downside contacts, and works as moving contact（4）With static contact（1）During separation, switch movable contact（8）Upper surface is with digging
Empty portion（5）Bottom separation, operating portion（3）Bottom surface and housing（2）Lower cavity floor contact, supporting part（61）Outer end downside
With second groove（10）Downside contact, operating portion（3）The upper surface of through hole on side and the supporting part（61）Outer end
Portion's upper side contact.
2. vacuum circuit breaker according to claim 1, it is characterised in that：The elastic telescopic element（62）For spiral bullet
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324612.5A CN105788954B (en) | 2016-05-17 | 2016-05-17 | A kind of vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324612.5A CN105788954B (en) | 2016-05-17 | 2016-05-17 | A kind of vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105788954A CN105788954A (en) | 2016-07-20 |
| CN105788954B true CN105788954B (en) | 2018-01-09 |
Family
ID=56379892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610324612.5A Active CN105788954B (en) | 2016-05-17 | 2016-05-17 | A kind of vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105788954B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593971B (en) * | 2021-08-02 | 2022-05-06 | 西安交通大学 | Integrated structure vacuum arc-extinguishing chamber and vacuum switch using same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2461339B1 (en) * | 2010-12-03 | 2015-10-28 | ABB Technology AG | Circuit breaker pole |
| CN102543561B (en) * | 2012-01-04 | 2015-01-07 | 苏州朗格电气有限公司 | Closing holding device for vacuum circuit breaker |
| CN103198963A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Vacuum circuit breaker |
| CN203503544U (en) * | 2013-10-31 | 2014-03-26 | 合肥天海电气技术有限公司 | Buffer-type vacuum explosion chamber |
| CN104810192B (en) * | 2015-05-08 | 2017-09-29 | 苏州奥然日用品有限公司 | A kind of vacuum circuit breaker combined floodgate locking device |
-
2016
- 2016-05-17 CN CN201610324612.5A patent/CN105788954B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105788954A (en) | 2016-07-20 |
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