CN106098464A - Mesohigh vacuum circuit breaker - Google Patents
Mesohigh vacuum circuit breaker Download PDFInfo
- Publication number
- CN106098464A CN106098464A CN201610716830.3A CN201610716830A CN106098464A CN 106098464 A CN106098464 A CN 106098464A CN 201610716830 A CN201610716830 A CN 201610716830A CN 106098464 A CN106098464 A CN 106098464A
- Authority
- CN
- China
- Prior art keywords
- vacuum interrupter
- cylinder
- vacuum
- fastening block
- cover plate
- 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.)
- Pending
Links
- 230000003068 static effect Effects 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 10
- 230000008033 biological extinction Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses mesohigh vacuum circuit breaker, including cylinder and cover plate, vacuum interrupter it is provided with in cylinder, fastening block is placed in the top of vacuum interrupter, on the outer circle wall of fastening block, hollow round table is installed, cylinder upper end inwall has the draw-in groove matched with hollow round table, vacuum interrupter is connected with fastening block, cylinder lower end inner wall is provided with a bracer, limiting plate is fixed on a bracer, lead and the push rod of inner hollow it is connected at vacuum interrupter two ends, in the upper end of push rod, ball is installed, ball upper surface and cover plate contact internal walls, through hole is had in the middle part of limiting plate, insulated tension pole upper end sequentially passes through through hole, after lead, the movable feeler lever with vacuum interrupter contacts.When breaking down, only need to open cover plate, utilize the clearance fit between hollow round table and draw-in groove, fixed block and vacuum interrupter can be taken out in the lump, abandon the installing/dismounting step that traditional chopper is complicated, greatly reduced the labor intensity of staff.
Description
Technical field
The present invention relates to vacuum circuit breaker technical field, specifically refer to mesohigh vacuum circuit breaker.
Background technology
On mesohigh vacuum circuit breaker of the prior art, vacuum interrupter is typically arranged on by upper bracket and lower carriage
In insulating sleeve.This mounting structure and mounting means, owing to the installation site of lower carriage self needs other parts to fix,
Making vacuum interrupter after being installed to insulating sleeve inside, lower end is easily rocked, to whole mesohigh vacuum circuit breaker just
Often work has a great impact, and the installation process operation of vacuum interrupter of the prior art is complex, breaks down
During replacing complex, affect the work efficiency of mesohigh vacuum circuit breaker.
Summary of the invention
It is an object of the invention to provide mesohigh vacuum circuit breaker, it is to avoid vacuum interrupter shakes, be effectively improved
Vacuum interrupter mounting stability in cylinder.
The purpose of the present invention is achieved through the following technical solutions:
Mesohigh vacuum circuit breaker, including single injection-molded cylinder and with the cover plate of cylinder upper end threaded engagement,
Being provided with vacuum interrupter in described cylinder, circular fastening block is placed in the top of vacuum interrupter, and at the excircle of fastening block
Resilient hollow round table is installed on wall, cylinder upper end inwall has the draw-in groove matched with hollow round table, described vacuum
Arc-chutes upper surface is connected with fastening block by bolt, and described cylinder lower end inner wall is provided with a bracer, and limiting plate is fixed on and props up
On bracer, being connected to lead and the push rod of inner hollow at described vacuum interrupter two ends, institute's push rod runs through fastening block
Upwardly extending after Zhong Bu, and be provided with ball in the upper end of push rod, described ball and described cover plate contact internal walls, described
Having through hole in the middle part of limiting plate, insulated tension pole upper end sequentially passes through the movable feeler lever after described through hole, lead with vacuum interrupter
Contact, described vacuum extinction indoor are provided with coaxial stationary contact bar and movable feeler lever, are provided with static contact, at movable feeler lever in stationary contact bar lower end
Upper end is provided with the moving contact coordinated with static contact, and static contact is the horizontal magnetic of helicla flute with moving contact, and insulated tension pole upper end is successively
It is connected with movable feeler lever after running through described through hole, lead and vacuum interrupter lower end.
During use, cover plate and cylinder upper end are threaded connection to realize the sealing on vacuum interrupter top, in cylinder
Portion is provided with a bracer, and limiting plate is fixed on a bracer, to realize the sealing to vacuum interrupter bottom, is i.e. ensureing that vacuum is gone out
On the premise of arc chamber normally works, reach the dust-proof grade of vacuum interrupter in cylinder.It is provided with fastening block in cylinder upper end simultaneously,
And on the outer circle wall of fastening block, set resilient hollow round table, the draw-in groove phase interworking that hollow round table and cylinder inboard wall start
Close, and push rod runs through the middle part of fastening block, is provided with and the ball of cover plate contact internal walls in push rod upper end, and vacuum extinction
The upper end of room is connected with fastening block, i.e. utilizes mutually supporting between ball with cover plate to contact so that vacuum interrupter upper
Portion is stably fixed；And in the middle part of cylinder, the limiting plate on a bracer provides for vacuum interrupter and supports, and then ensure that vacuum is gone out
The entirety of arc chamber in cylinder by stable holding, it is to avoid vacuum interrupter shakes, and is effectively improved vacuum interrupter at cylinder
Interior mounting stability.Wherein, break down need to change vacuum interrupter time, only need to open cover plate, utilize hollow round table
And the clearance fit between draw-in groove, can take out in the lump by fixed block and vacuum interrupter, abandon traditional chopper complicated
Installing/dismounting step, greatly reduce the labor intensity of staff.Further, the horizontal magnetic of helicla flute is selected to touch as dynamic
Head, static contact, when disjunction short circuit current, can result from the magnetic field of electrode axis perpendicular, enough between its electrode
Under the effect of transverse magnetic field, vacuum arc is along the surface constantly high-speed motion of contact, and then avoids seriously melting of contact surface
Change, rapidly while convalescent period dielectric strength, beneficially arc extinction, can greatly reduce moving contact after current over-zero
And the loss of static contact, reduce the replacement frequency to vacuum interrupter, and extend the service life of chopper.
The sidewall of described cylinder is respectively equipped with upper end wire outlet seat and lower end wire outlet seat.Arrange upper end occur seat with under
End wire outlet seat can facilitate and the indoor stationary contact bar of vacuum extinction, movable feeler lever are carried out wire connection, simultaneously upper end wire outlet seat and under
Using the wire outlet seat that classification of waterproof is higher on end wire outlet seat, and then improve inner barrel, particularly vacuum extinction indoor is waterproof
Dust-proof effect.
The inwall of described cylinder is provided with elastic sheet metal, and the end of described elastic sheet metal and insulated tension pole is upper
End connects.When moving contact in vacuum interrupter separates with static contact, movable feeler lever can drive insulated tension pole to move down, and works as vacuum electric
Arc disappear time, the back-moving spring on elastic sheet metal coordinated insulation pull bar together to insulated tension pole and movable feeler lever generation effect,
Make insulated tension pole and movable feeler lever Rapid reset.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention break down need to change vacuum interrupter time, only need to open cover plate, utilize hollow round table and draw-in groove it
Between clearance fit, fixed block and vacuum interrupter can be taken out in the lump, the installation having abandoned traditional chopper complicated is torn open
Unload step, greatly reduce the labor intensity of staff；
2, when present invention moving contact in vacuum interrupter separates with static contact, movable feeler lever can drive insulated tension pole to move down, when
When vacuum arc disappears, insulated tension pole and movable feeler lever are produced by back-moving spring on elastic sheet metal coordinated insulation pull bar together
Effect so that insulated tension pole and movable feeler lever Rapid reset；
3, the present invention has through hole at the middle part of ball so that vacuum interrupter moving contact separates with static contact or again connects
The applied stress produced when touching is when being transferred at cover plate, ball by self deformation and reply elastic force produced by deformation will
This applied stress eliminates, and makes ball have certain deformation space, to keep away in the middle part of it when compressed in offering of through hole
Exempt from the internal internal stress caused that mutually extrudes of ball to concentrate, reduce the extent of deterioration of ball, to reach to extend rubber
Ball service life and the purpose of reduction chopper frequency of maintenance.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation of static contact and moving contact.
Labelling and corresponding parts title in accompanying drawing:
1-cylinder, 2-vacuum interrupter, 21-stationary contact bar, 22-static contact, 23-moving contact, 24-movable feeler lever, 3-elastic sheet metal,
4-lead, 5-limiting plate, 6-prop up on bracer, 7-insulated tension pole, 8-fastening block, 9-cover plate, 10-push rod, 11-ball, 12-
End wire outlet seat, 13-lower end wire outlet seat.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Figure 1 and 2, the present embodiment include single injection-molded cylinder 1 and with the lid of cylinder 1 upper end threaded engagement
Plate 9, is provided with vacuum interrupter 2 in described cylinder 1, and circular fastening block 8 is placed in the top of vacuum interrupter 2, and in fastening
Resilient hollow round table is installed on the outer circle wall of block 8, cylinder 1 upper end inwall has the card matched with hollow round table
Groove, described vacuum interrupter 2 upper surface is connected with fastening block 8 by bolt, and described cylinder 1 lower end inner wall is provided with a bracer 6,
Limiting plate 5 is fixed on a bracer 6, is connected to lead 4 and the push rod of inner hollow at described vacuum interrupter 2 two ends
10, institute's push rod 10 upwardly extends after running through in the middle part of fastening block 8, and is provided with ball 11, described rubber in the upper end of push rod 10
Ball 11 and described cover plate 9 contact internal walls, have through hole in the middle part of described limiting plate 5, and insulated tension pole 7 upper end sequentially passes through described logical
After hole, lead 4, the movable feeler lever with vacuum interrupter 2 contacts, and is provided with coaxial stationary contact bar 21 with dynamic in described vacuum interrupter 2
Feeler lever 24, is provided with static contact 22 in stationary contact bar 21 lower end, is provided with the moving contact 23 coordinated with static contact 22 in movable feeler lever 22 upper end,
And static contact 22 is the horizontal magnetic of helicla flute with moving contact 23, insulated tension pole 7 upper end sequentially pass through described through hole, lead 4 and
Vacuum interrupter 2 is connected with movable feeler lever 24 behind lower end.
During use, cover plate 9 and cylinder 1 upper end are threaded connection to realize the sealing on vacuum interrupter 2 top, at cylinder
Being provided with a bracer 6 in the middle part of in the of 1, limiting plate 5 is fixed on a bracer 6, to realize the sealing to vacuum interrupter 2 bottom, is i.e. protecting
Card is on the premise of vacuum interrupter 2 normally works, and reaches the dust-proof grade of vacuum interrupter 2 in cylinder 1.Simultaneously on cylinder 1
End is provided with fastening block 8, and sets resilient hollow round table on the outer circle wall of fastening block 8, and hollow round table is opened with cylinder 1 inwall
The draw-in groove begun cooperates, and push rod 10 runs through the middle part of fastening block 8, is provided with in push rod 10 upper end and connects with cover plate 9 inwall
The ball 11 touched, and the upper end of vacuum interrupter 2 is connected with fastening block 8, and i.e. utilize between ball 11 and cover plate 9 is mutual
Support contact so that the top of vacuum interrupter 2 is stably fixed；And in the middle part of cylinder 1, the limiting plate 5 on a bracer 6 is true
Empty arc-chutes 2 provide and support, so ensure the entirety of vacuum interrupter 2 in cylinder 1 by stable holding, it is to avoid vacuum interrupter
2 shake, and are effectively improved the vacuum interrupter 2 mounting stability in cylinder 1.Wherein, change true at the needs that break down
During empty arc-chutes 2, only need to open cover plate 9, utilize the clearance fit between hollow round table and draw-in groove, can be by fixed block and vacuum
Arc-chutes 2 take out in the lump, have abandoned the installing/dismounting step that traditional chopper is complicated, have greatly reduced the work of staff
Intensity.
Further, select the horizontal magnetic of helicla flute as moving contact 23, static contact 22, can be when disjunction short circuit current, can be
Resulting from the magnetic field of electrode axis perpendicular between its electrode, under the effect of enough transverse magnetic fields, vacuum arc is along contact
Surface constantly high-speed motion, and then avoid the serious thawing of contact surface, can convalescent period insulation rapidly after current over-zero
While intensity, beneficially arc extinction, greatly reduce moving contact 23 and the loss of static contact 22, reduce and vacuum is gone out
The replacement frequency of arc chamber, and extend the service life of chopper.
The sidewall of described cylinder 1 is respectively equipped with upper end wire outlet seat 12 and lower end wire outlet seat 13.The upper end arranged occurs
Seat can facilitate with lower end wire outlet seat 13 and the stationary contact bar in vacuum interrupter 2, movable feeler lever are carried out wire and be connected, and brings out upper simultaneously
Using the wire outlet seat that classification of waterproof is higher on line seat 12 and lower end wire outlet seat 13, and then it is internal to improve cylinder 1, particularly vacuum is gone out
Water proof and dust proof effect in arc chamber 2.
The inwall of described cylinder 1 is provided with elastic sheet metal 3, and the end of described elastic sheet metal 3 and insulated tension pole 7
Upper end connect.When moving contact in vacuum interrupter 2 separates with static contact, movable feeler lever can drive insulated tension pole 7 to move down, when
When vacuum arc disappears, the back-moving spring on elastic sheet metal 3 coordinated insulation pull bar 7 is together to insulated tension pole 7 and movable feeler lever
Generation effect so that insulated tension pole 7 and movable feeler lever Rapid reset.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (3)
1. mesohigh vacuum circuit breaker, including single injection-molded cylinder (1) and with cylinder (1) upper end threaded engagement
Cover plate (9), it is characterised in that: being provided with vacuum interrupter (2) in described cylinder (1), circular fastening block (8) is placed in vacuum and goes out
The top of arc chamber (2), and resilient hollow round table is installed on the outer circle wall of fastening block (8), at cylinder (1) upper end inwall
On have the draw-in groove matched with hollow round table, described vacuum interrupter (2) upper surface is connected with fastening block (8) by bolt,
Described cylinder (1) lower end inner wall is provided with a bracer (6), and limiting plate (5) is fixed on a bracer (6), in described vacuum extinction
Room (2) two ends are connected to lead (4) and the push rod (10) of inner hollow, and described push rod (10) runs through in fastening block (8)
Upwardly extending behind portion, and be provided with ball (11) in the upper end of push rod (10), described ball (11) is interior with described cover plate (9)
Wall contact, described limiting plate (5) middle part have through hole, be provided with in described vacuum interrupter (2) coaxial stationary contact bar (21) with
Movable feeler lever (24), is provided with static contact (22) in stationary contact bar (21) lower end, is provided with in movable feeler lever (22) upper end and joins with static contact (22)
The moving contact (23) closed, and static contact (22) and moving contact (23) be the horizontal magnetic of helicla flute, insulated tension pole (7) upper end sequentially passes through
It is connected with movable feeler lever (24) behind described through hole, lead (4) and vacuum interrupter (2) lower end.
Mesohigh vacuum circuit breaker the most according to claim 1, it is characterised in that: divide on the sidewall of described cylinder (1)
It is not provided with upper end wire outlet seat (12) and lower end wire outlet seat (13).
Mesohigh vacuum circuit breaker the most according to claim 1, it is characterised in that: set on the inwall of described cylinder (1)
Flexible sheet metal (3), and the end of described elastic sheet metal (3) is connected with the upper end of insulated tension pole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716830.3A CN106098464A (en) | 2016-08-25 | 2016-08-25 | Mesohigh vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716830.3A CN106098464A (en) | 2016-08-25 | 2016-08-25 | Mesohigh vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106098464A true CN106098464A (en) | 2016-11-09 |
Family
ID=57224949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610716830.3A Pending CN106098464A (en) | 2016-08-25 | 2016-08-25 | Mesohigh vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106098464A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363072Y (en) * | 1998-10-23 | 2000-02-09 | 财团法人工业技术研究院 | Hot melt wax cold start valve |
| CN201440395U (en) * | 2009-07-03 | 2010-04-21 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and main circuit structure using same |
| CN201667312U (en) * | 2010-01-20 | 2010-12-08 | 北京华东森源电气有限责任公司 | Solid-sealed pole structure of high-voltage vacuum circuit breaker |
| CN104183416A (en) * | 2014-09-12 | 2014-12-03 | 安徽鑫龙电器股份有限公司 | Vacuum circuit breaker |
| JP2016012418A (en) * | 2014-06-27 | 2016-01-21 | 三菱電機株式会社 | Vacuum valve |
| JP2016092871A (en) * | 2014-10-30 | 2016-05-23 | 株式会社日立製作所 | Switchgear |
-
2016
- 2016-08-25 CN CN201610716830.3A patent/CN106098464A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363072Y (en) * | 1998-10-23 | 2000-02-09 | 财团法人工业技术研究院 | Hot melt wax cold start valve |
| CN201440395U (en) * | 2009-07-03 | 2010-04-21 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and main circuit structure using same |
| CN201667312U (en) * | 2010-01-20 | 2010-12-08 | 北京华东森源电气有限责任公司 | Solid-sealed pole structure of high-voltage vacuum circuit breaker |
| JP2016012418A (en) * | 2014-06-27 | 2016-01-21 | 三菱電機株式会社 | Vacuum valve |
| CN104183416A (en) * | 2014-09-12 | 2014-12-03 | 安徽鑫龙电器股份有限公司 | Vacuum circuit breaker |
| JP2016092871A (en) * | 2014-10-30 | 2016-05-23 | 株式会社日立製作所 | Switchgear |
Non-Patent Citations (1)
| Title |
|---|
| 苑舜: "《真空断路器开断与关合不同负载时的操作过电压》", 31 December 2001 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |