CN109841451A - Vacuum interrupter and the dc bypass switch for using the arc-chutes - Google Patents
Vacuum interrupter and the dc bypass switch for using the arc-chutes Download PDFInfo
- Publication number
- CN109841451A CN109841451A CN201711217662.4A CN201711217662A CN109841451A CN 109841451 A CN109841451 A CN 109841451A CN 201711217662 A CN201711217662 A CN 201711217662A CN 109841451 A CN109841451 A CN 109841451A
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- moved end
- conducting rod
- vacuum interrupter
- bellows
- cover board
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
It is switched the present invention relates to vacuum interrupter and using the dc bypass of the arc-chutes, vacuum interrupter includes insulation crust and the moved end component that is arranged on insulation crust, moved end component includes moved end cover board, moved end conducting rod and the bellows being set on the conducting rod of moved end, the end of insulation crust is arranged in moved end cover board, moved end conducting rod runs through moved end cover board, and the outside of moved end cover board is arranged in the bellows.Bellows is avoided to occupy insulation crust inner space, the axial length of insulation crust can reduce, and compared with the prior art, the small volume of insulation crust avoids the waste of material, and more convenient to use.
Description
Technical field
It is switched the present invention relates to one of high-voltage switch gear field vacuum interrupter and using the dc bypass of the arc-chutes.
Background technique
With the continuous development of power industry, flexible DC transmission technology is as a kind of economic, flexible, high quality transmission of electricity
Mode is increasingly used in domestic and international power transmission engineering.And quickly by-pass switch is for flexible direct current transmission converter valve
Safe and reliable operation serves vital.When quick by-pass switch needs very high closing speed and very short combined floodgate
Between, closing rebound is required also very high.Therefore, fast-speed direct current by-pass switch needs high reliability with vacuum interrupter.
The Chinese invention patent that notification number is CN104766757B, the day for announcing is 2017.04.05 discloses a kind of vacuum and goes out
Arc chamber including insulation crust and sets up static side component, the moved end component at insulation crust both ends separately, and static side component includes static side lid
Plate, static side conducting rod, static contact and main shield cover, static side conducting rod are fixed by static side cover board, and main shield cover is fixed on static side
On conducting rod, for guaranteeing the External Insulation ability of vacuum interrupter and smoothly cut-offfing；Moved end component includes moved end cover board, dynamic touching
Head, moved end conducting rod and bellows are coaxially provided with the guide sleeve for being oriented to moved end conducting rod, moved end on the cover board of moved end
Conducting rod is installed in guide sleeve, and bellows-sheathed is on the conducting rod of moved end and is in the inside of insulation crust, bellows and absolutely
Edge shell, moved end cover board, static side cover board collectively constitute leak-tight system.
Existing vacuum interrupter has problems in that: since the inside of insulation crust, bellows meeting is arranged in bellows
The inner space for occupying insulation crust, causes the axial length of insulation crust longer, and the volume of insulation crust increases.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum interrupters, to solve the insulation crust in existing vacuum interrupter
The larger problem of volume；The object of the invention is also to provide a kind of dc bypass using the arc-chutes to switch.
To achieve the above object, the scheme 1 of vacuum interrupter of the invention is: vacuum interrupter includes insulation crust and sets
The moved end component on insulation crust is set, moved end component includes moved end cover board, moved end conducting rod and is set on the conducting rod of moved end
Bellows, moved end cover board is arranged in the end of insulation crust, and moved end conducting rod runs through moved end cover board, and the bellows setting exists
The outside of moved end cover board.
Scheme 2 is vacuum interrupter according to scheme 1, and one end of the bellows is welded on the outer of moved end cover board
On end face, the other end is welded on the conducting rod of moved end by connecting plate, and moved end conducting rod is equipped with for stopping to connecting plate
The block platform of gear.
Scheme 3 is, according to vacuum interrupter described in scheme 2, vacuum interrupter further includes static side conducting rod, the moved end
One end of the close static side conducting rod of conducting rod is equipped with the moved end shielding case towards static side conducting rod, and the close of static side conducting rod moves
One end of conducting rod is held to be equipped with the static side shielding case towards moved end conducting rod.
Scheme 4 is vacuum interrupter according to scheme 3, and the moved end shielding case goes out with static side shielding case in vacuum
Arc chamber is spaced apart from each other when being in closing position.
Scheme 5 is vacuum interrupter according to scheme 4, the shaft section of the moved end shielding case and static side shielding case
It is C-shaped section.
Scheme 6 is, according to vacuum interrupter described in scheme 5, the opening mouth of the moved end shielding case and static side shielding case
There is intersection along the projection along the projection perpendicular to corresponding conducting rod axial direction and the contact on the conducting rod.
Scheme 7 is, according to the described in any item vacuum interrupters of scheme 1 to 6, the insulation crust is metallization porcelain shell.
Scheme 8 is, according to the described in any item vacuum interrupters of scheme 1 to 6, the bellows is by multiple hollow membranes
Weld the welding bellows formed.
The scheme 1 of dc bypass switch of the invention is: dc bypass switch includes vacuum interrupter, vacuum interrupter packet
The moved end component for including insulation crust and being arranged on insulation crust, moved end component include moved end cover board, moved end conducting rod and are arranged
The end of insulation crust is arranged in bellows on the conducting rod of moved end, moved end cover board, and moved end conducting rod runs through moved end cover board, institute
State the outside that moved end cover board is arranged in bellows.
Scheme 2 is that dc bypass switch according to scheme 1, one end of the bellows is welded on moved end cover board
On outer end face, the other end is welded on the conducting rod of moved end by connecting plate, and moved end conducting rod is equipped with for carrying out to connecting plate
The block platform of backstop.
Scheme 3 is switched according to dc bypass described in scheme 2, and vacuum interrupter further includes static side conducting rod, described dynamic
Hold conducting rod close static side conducting rod one end equipped with towards static side conducting rod moved end shielding case, static side conducting rod it is close
One end of moved end conducting rod is equipped with the static side shielding case towards moved end conducting rod.
Scheme 4 is that dc bypass switch according to scheme 3, the moved end shielding case and static side shielding case are in vacuum
Arc-chutes are spaced apart from each other when being in closing position.
Scheme 5 is dc bypass switch according to scheme 4, and the axis of the moved end shielding case and static side shielding case is cut
Face is C-shaped section.
Scheme 6 is to be switched according to dc bypass described in scheme 5, the opening of the moved end shielding case and static side shielding case
Opening's edge has intersection along the projection perpendicular to corresponding conducting rod axial direction and the projection of the contact on the conducting rod.
Scheme 7 is switched according to the described in any item dc bypass of scheme 1 to 6, and the insulation crust is metallization porcelain
Shell.
Scheme 8 is switched according to the described in any item dc bypass of scheme 1 to 6, and the bellows is by multiple hollow membranes
Piece welds the welding bellows to be formed.
The beneficial effects of the present invention are: bellows-sheathed is mounted in the outside on the conducting rod of moved end and being in moved end cover board, i.e.,
Outside in insulation crust avoids bellows from occupying insulation crust inner space, and the axial length of insulation crust can reduce,
Compared with the prior art, the small volume of insulation crust avoids the waste of material, and more convenient to use.
Further, one end of bellows is welded on the outer end face of moved end cover board, and the other end is welded on by connecting plate
On the conducting rod of moved end, connecting plate is positioned by the block platform on the conducting rod of moved end, guarantees the position essence of bellows installation
Degree improves installation effectiveness.
Further, it is respectively equipped with moved end shielding case and static side shielding case on static side conducting rod and moved end conducting rod, it is dynamic and static
End shield is oppositely arranged, and improves the field distribution of contact junction with shielding case, shield effectiveness is good, and insulating properties is higher.
Further, moved end shielding case and static side shielding case are spaced apart from each other when vacuum interrupter is in closing position, are protected
Vacuum interrupter is demonstrate,proved in divide-shut brake, short circuit current is appeared in always between dynamic and static conducting rod, improves arc extinguishing reliability.
Further, the shaft section of moved end shielding case and static side shielding case is C-shaped section, dynamic and static end shield port
Projection along corresponding conducting rod radial direction coincides with the position of corresponding contact, guarantees the shield effectiveness of dynamic and static end shield.
Further, bellows is welding bellows, and the height of welding bellows is small, and scalable amount is bigger, only can be along
The movement of welding bellows central axial direction, is oriented to moved end conducting rod by welding bellows；Guide sleeve is eliminated, is reduced
Cost, moved end electrode structure is compact, and moving-mass is light, meet the needs of rapid closing.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment one of vacuum interrupter in closing position；
Fig. 2 is structural schematic diagram of the embodiment one of vacuum interrupter in open position.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The embodiment one of vacuum interrupter of the invention, as shown in Figure 1 to Figure 2, including insulation crust 4 and setting up separately is insulating
Moved end cover board 3, static side cover board 7 at the two-port of shell 4, the insulation crust 4 in the present embodiment are metallization porcelain shell；Moved end lid
Plate 3 has the centre bore installed for moved end conducting rod 1, and moved end conducting rod 1 runs through moved end cover board 3, and static side conducting rod 8 is fixedly set
It sets on static side cover board 7, the inner end of dynamic and static end conducting rod is respectively equipped with moving contact and static contact.
Bellows 2 is sleeved on the part of stretching moved end cover board 3 of moved end conducting rod 1, and the bellows 2 in the present embodiment is
Welding bellows, welding bellows 2 are one kind by multiple Slim hollow diaphragms, utilize telescopic in height made by precision welding
Metal tube, the height of welding bellows 2 is small, and scalable amount is bigger, only can be transported along 2 central axial direction of welding bellows
It is dynamic, it is limited by structure, bending motion will not be done, itself has guide function.One end of welding bellows 2 is welded on moved end lid
On plate 3, the other end is welded on moved end conducting rod 1 by connecting plate 9.
Moved end conducting rod 1 is equipped with the block platform 10 for carrying out backstop to connecting plate 9, and block platform 10 has backwards to moved end
The stop surface of cover board 3.Moved end conducting rod 1 is oriented to by welding bellows 2, guide sleeve is saved, reduces costs, moved end
Electrode structure is compact, and moving-mass is light, meets the needs of rapid closing.It is welding bellows 2, dynamic cover board 3, metallization porcelain shell 4, quiet
Cover board 7 has collectively constituted leak-tight system, guarantees that vacuum interrupter has good vacuum environment.
Moved end conducting rod 1 is equipped with moved end shielding case 5, and static side conducting rod 8 is equipped with static side shielding case 6, dynamic and static end shield
The structure of cover is identical and the two is at being symmetrical set, and by taking moved end shielding case 5 as an example, the shaft section of moved end shielding case 5 is C-shaped,
The middle section of moved end shielding case 5 is equipped with for installing to the centre bore on moved end conducting rod 1, at the port of moved end shielding case 5
It is bent inwardly, and bending part is in the inside of moving contact along the radial projection of moved end conducting rod 1, i.e. guarantee shielding case is whole
Or part covers corresponding contact, guarantees shield effectiveness.
The shielding that axial stop is carried out to corresponding shielding case is respectively provided on moved end conducting rod 1 and static side conducting rod 8
Cover backstop platform, dynamic and static end shield are welded on corresponding conducting rod at corresponding shielding case backstop platform, moved end shielding case 5 with
Moved end conducting rod 1 moves.Moved end shielding case 5 and static side shielding case 6 have collectively constituted the shielding harness of vacuum interrupter, dynamic and static
Belong to plane between end shield to the structure of plane, for improving the field distribution between dynamic and static conducting rod, shield effectiveness is good,
The probability for point discharge occur is extremely low, and insulation performance is optimized.
Further, dynamic and static end shield is mutually isolated when vacuum interrupter is in closing position, guarantees short circuit current
Always it appears between dynamic and static conducting rod, improves the reliability of arc-chutes.
Compared with the prior art, the outside of insulation crust is arranged in bellows, and bellows is avoided to occupy inside insulation shell
The axial length in space, insulation crust reduces, and the volume of insulation crust reduces, and the overall dimensions of vacuum interrupter are small, and structure is tight
It gathers, Product Process implementation is strong, and properties of product are stablized, and is conducive to the miniaturization and mass production of vacuum interrupter.
Embodiment two, embodiment two and embodiment one the difference is that, the bellows in the present embodiment is without leading
To the common bellows of function, the outside of moved end cover board is arranged in bellows, and guide sleeve, guide sleeve setting are arranged on the cover board of moved end
On the outer wall or inner wall of moved end cover board, guiding is when being set on the outer wall of moved end cover board, bellows and moved end conducting rod it
Between there are the spaced radials installed for guide sleeve, moved end conducting rod is oriented to by guide sleeve.Reduction goes out to existing vacuum
The change of arc chamber, convenient for the external implementation of bellows.
The embodiment of dc bypass switch of the invention, dc bypass switch include vacuum interrupter, vacuum interrupter
Structure is identical as the structure of any embodiment of the vacuum interrupter of aforementioned present invention；Therefore, it is not repeated to illustrate.
Claims (10)
1. vacuum interrupter, including insulation crust and the moved end component being arranged on insulation crust, moved end component includes moved end lid
The end of insulation crust is arranged in plate, moved end conducting rod and the bellows being set on the conducting rod of moved end, moved end cover board, and moved end is led
Electric pole runs through moved end cover board, it is characterised in that: the outside of moved end cover board is arranged in the bellows.
2. vacuum interrupter according to claim 1, it is characterised in that: one end of the bellows is welded on moved end cover board
Outer end face on, the other end is welded on the conducting rod of moved end by connecting plate, moved end conducting rod be equipped with for connecting plate into
The block platform of whereabouts gear.
3. vacuum interrupter according to claim 2, it is characterised in that: vacuum interrupter further includes static side conducting rod, institute
State the close static side conducting rod of moved end conducting rod one end be equipped with towards static side conducting rod moved end shielding case, static side conducting rod
The static side shielding case towards moved end conducting rod is equipped with close to one end of moved end conducting rod.
4. vacuum interrupter according to claim 3, it is characterised in that: the moved end shielding case is with static side shielding case true
Empty arc-chutes are spaced apart from each other when being in closing position.
5. vacuum interrupter according to claim 4, it is characterised in that: the axis of the moved end shielding case and static side shielding case
Section is C-shaped section.
6. vacuum interrupter according to claim 5, it is characterised in that: the moved end shielding case and static side shielding case are opened
The projection of contact of the mouth opening's edge in the projection and the conducting rod perpendicular to corresponding conducting rod axial direction is with intersection.
7. vacuum interrupter according to any one of claims 1 to 6, it is characterised in that: the insulation crust is metallization
Porcelain shell.
8. vacuum interrupter according to any one of claims 1 to 6, it is characterised in that: the bellows is by multiple
Empty diaphragm welds the welding bellows to be formed.
9. dc bypass switchs, including vacuum interrupter, vacuum interrupter includes insulation crust and is arranged on insulation crust
Moved end component, moved end component include moved end cover board, moved end conducting rod and the bellows being set on the conducting rod of moved end, moved end cover board
The end of insulation crust is set, and moved end conducting rod runs through moved end cover board, it is characterised in that: the bellows is arranged in moved end lid
The outside of plate.
10. dc bypass switch according to claim 9, it is characterised in that: one end of the bellows is welded on moved end
On the outer end face of cover board, the other end is welded on the conducting rod of moved end by connecting plate, and moved end conducting rod is equipped with for connection
The block platform of plate progress backstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217662.4A CN109841451A (en) | 2017-11-28 | 2017-11-28 | Vacuum interrupter and the dc bypass switch for using the arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217662.4A CN109841451A (en) | 2017-11-28 | 2017-11-28 | Vacuum interrupter and the dc bypass switch for using the arc-chutes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109841451A true CN109841451A (en) | 2019-06-04 |
Family
ID=66881167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711217662.4A Pending CN109841451A (en) | 2017-11-28 | 2017-11-28 | Vacuum interrupter and the dc bypass switch for using the arc-chutes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109841451A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112992574A (en) * | 2019-12-17 | 2021-06-18 | 天津平高智能电气有限公司 | Vacuum interrupter assembly fixture |
| CN113053693A (en) * | 2021-03-22 | 2021-06-29 | 北京中磁电气有限公司 | External vacuum switch tube of bellows |
| CN113130231A (en) * | 2019-12-30 | 2021-07-16 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN113284760A (en) * | 2021-04-30 | 2021-08-20 | 西安交通大学 | Vacuum arc-extinguishing chamber with movable shielding case structure |
| CN114382818A (en) * | 2022-01-25 | 2022-04-22 | 上海交通大学 | Vibration-suppressing hydro-electric hybrid actuator and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992574A (en) * | 2019-12-17 | 2021-06-18 | 天津平高智能电气有限公司 | Vacuum interrupter assembly fixture |
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| CN113130231A (en) * | 2019-12-30 | 2021-07-16 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN113130231B (en) * | 2019-12-30 | 2022-11-22 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN113053693A (en) * | 2021-03-22 | 2021-06-29 | 北京中磁电气有限公司 | External vacuum switch tube of bellows |
| CN113053693B (en) * | 2021-03-22 | 2023-03-14 | 北京中磁新材科技有限公司 | External vacuum switch tube of bellows |
| CN113284760A (en) * | 2021-04-30 | 2021-08-20 | 西安交通大学 | Vacuum arc-extinguishing chamber with movable shielding case structure |
| CN113284760B (en) * | 2021-04-30 | 2022-08-05 | 西安交通大学 | Vacuum arc-extinguishing chamber with movable shielding case structure |
| CN114382818A (en) * | 2022-01-25 | 2022-04-22 | 上海交通大学 | Vibration-suppressing hydro-electric hybrid actuator and control method thereof |
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Application publication date: 20190604 |