CN104362535B - Tank, arc extinguish chamber using tank, and sealed switch device - Google Patents
Tank, arc extinguish chamber using tank, and sealed switch device Download PDFInfo
- Publication number
- CN104362535B CN104362535B CN201410602179.8A CN201410602179A CN104362535B CN 104362535 B CN104362535 B CN 104362535B CN 201410602179 A CN201410602179 A CN 201410602179A CN 104362535 B CN104362535 B CN 104362535B
- Authority
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- China
- Prior art keywords
- tank body
- solid insulation
- insulation set
- face
- tank
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Breakers (AREA)
Abstract
The invention discloses a tank, an arc extinguish chamber using the tank, and a sealed switch device. A solid insulating sleeve in the arc extinguish chamber can be placed into a tank body through a feed inlet to allow an electric connection body to be located in the solid insulating sleeve. The solid insulating sleeve is separately disposed between the gas outlet part of a blowing out side and the inner wall surface of the tank body. The inner wall surface of the solid insulating sleeve is a baffling surface which baffles insulating gas sprayed out of the blowing side to allow the insulating gas to deflect. During use, the insulating gas sprayed out of the nozzle of a movable electric connection end extinguishes the high-voltage arcs in a fracture and then sprays out from the blowing out side of the electric connection body, the insulating gas is high in speed and temperature and carries some metal dust and ionization decomposed products at this moment, the high-temperature high-speed mixed gas collides with the baffling surface of the fixed solid insulating sleeve, and the mixed gas sprayed out of the blowing side is prevented from impacting and eroding the inner wall surface of the tank body.
Description
Technical field
The present invention relates to a kind of tank body and the arc-chutes using the tank body, closed type switch.
Background technology
Customary insulation mode is divided into gas-insulated and fixed insulation in switchgear, and gas isolated mode is in arc extinguishing
Sulfur hexafluoride gas, nitrogen etc. are filled with room, the mode of solid insulation is that polytetrafluoroethylene (PTFE), electroceramics material are arranged in arc extinguishing room
Material, glass fabric, resin material etc., and gas isolated side is generally adopted in the insulation against ground of metal enclosed switchgear
Formula, its advantage is that the form of gas is not fixed, and in particular by the switchgear of air blowing arc extinguishing, gas-insulated is even more and plays arc extinguishing
Effect.But no matter gas-insulated is using sulfur hexafluoride gas or nitrogen, and its dielectric strength is below consolidating in fixed insulation
Determine isolation material, and the insulating properties of insulating gas can be subject to temperature, pressure, element in the tank body of metal enclosed switchgear
The change of ablation affects, and causes metal enclosed switchgear to adopt spacious using gas isolated tank body ratio under equal electric pressure
The tank body external diameter of open switch equipment is big.
When metal enclosed switchgear carries out cut-offfing action, insulation is spurted to quiet power connection end from the dynamic power connection end of arc-chutes
Gas, insulating gas will blow out the electric arc between static arc contact and moving arcing contact, and it is logical to flow through the cooling in fixed contact pedestal
Road --- air side of the open type on fixed contact pedestal periphery flows through the surface of static arc contact --- is on static arc contact periphery
The air side of open type, injects directly on and carry out on the internal face of tank body baffling.But because of high-temperature electric arc meeting between dynamic and static connection end
Heating insulating gas so that the pressure of insulating gas rises, insulating capacity declines, and the dynamic power connection end of arc-chutes utilizes machinery side
Formula manufactures pressure differential or carries out arc extinguishing using arc-chutes pressure itself difference, while high-temperature insulation gas is blowed to into the quiet of arc-chutes
Power connection end is cooled down, so during high-temperature insulation gas cooling, the unit of the quiet power connection end of gas meeting ablation arc-chutes
Part, to produce a certain amount of metallic dust and ionization analyte in the gas channel of quiet power connection end, this part dust and decomposition
Thing and the insulating gas thoroughly not cooled down directly are not blown the air side from quiet power connection end on the internal face of tank body, are mingled with
Dust and analyte in insulating gas can burn and corrode the tank skin of tank body, so that the internal face of tank body is uneven, weight
Arc-chutes will be then caused to puncture over the ground or discharge, so Cubicle Gas-Insulated Switchgear generally needs to be gone out by prolongation
Arc chamber static side gas channel is reducing insulating gas temperature.
But to extend in limited space if gas channel, can only be in the cooling duct in the quiet power connection end of arc-chutes
Increase deflection plate, but the effect of deflection plate is also limited, when the tank body internal diameter of Cubicle Gas-Insulated Switchgear contracts
It is little to a certain extent when, insulation against ground will become very sensitive, as long as there is the reduction of some insulating properties, may result in and put over the ground
Electricity punctures, and now has no baffle plate to affect little to the insulating properties of whole arc-chutes.
And with the progress of society, the density of population is continuously increased, requirement of the modern society to the utilization rate in space also with
Raising so that the demand more and more higher that market reduces to the appearance and size of metal enclosed switchgear, such as electrical network requirement of invitation for bid
In, the width of 252kV three-phase split-phase metal enclosed switchgears is down to 1500mm from initial 2300mm, such as with hexafluoro
Change breaker of the sulphur gas for dielectric, if the diameter itself of arc-chutes does not reduce, the tank body of metal enclosed switchgear
Diameter has been reduced to a limit, if further reducing tank diameter, only increases tank body interior insulation gas pressure, but this
Method not only wastes gas, but also the safety to metal enclosed switchgear has an impact, and design pressure is improved after all, not only
Increase material cost, and also need to the authentication of professional qualification of greater degree.
The content of the invention
It is an object of the invention to provide a kind of avoid internal face from being gone out by the high-voltage switch gear that the insulating gas impact of high temperature is burnt
The tank body of arc chamber, while additionally providing a kind of arc-chutes using the tank body and the closed type switch using the arc-chutes.
In order to realize object above, the technical scheme of tank body is as follows in the present invention：
Tank body, including for accommodating the tank body body of the relative pipe box shape for connecing electric main body being assembled of dynamic and static power connection end,
It is equipped with tank body body for every the solid insulation set being located between the internal face of the outer peripheral face and tank body body for connecing electric main body,
The internal face of solid insulation set is for intercepting from the blowout side spray for connecing electric main body the folding for preventing the insulating gas and baffling commutation for
Stream interface, the outside wall surface of solid insulation set is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body
At least one is that bore arrives the intrinsic loading port of tank body not less than the external diameter of solid insulation set, so that solid insulation set is inserted.
The temperature classification of the inwall of solid insulation set is not less than C levels.
The two-port one of tank body body be loaded into mouth, another projection is provided with and solid insulation set between in tank body body
Limited step on internal face, limited step limit block is in one end of solid insulation set dorsad loading port.
End face tack coat is folded between limited step and the opposite face of solid insulation set, solid insulation set is viscous by end face
Knot layer is adhesively fixed on limited step.
Side face tack coat is folded between the outside wall surface of solid insulation set and the internal face of tank body body, solid insulation set is led to
Cross the internal face that side face tack coat is adhesively fixed on tank body body.
The technical scheme of the arc-chutes of the present invention is as follows：
Arc-chutes, including tank body, the tank body body of tank body is pipe box shape, and tank body is originally provided with vivo by dynamic and static power connection end phase
Connect electric main body to what is be assembled, connect electric main body periphery be provided with for arc extinguishing after insulating gas blow to the inwall of tank body body
The open type in face or the blowout side of open type, are equipped with every being located at the outer peripheral face that connects electric main body and tank body body in tank body body
Solid insulation set between internal face, the internal face of solid insulation set is to prevent the insulating gas for simultaneously for intercepting from blowout side spray
The baffling-face of baffling commutation, the outside wall surface of solid insulation set is the fitting surface coordinated with the internal face of tank body body, and tank body sheet
At least one is that bore arrives tank body body not less than the external diameter of solid insulation set, so that solid insulation set is inserted in the two-port of body
Interior loading port.
Stretch out from the two ends for connecing electric main body at the two ends of solid insulation set.
The two-port one of tank body body be loaded into mouth, another projection is provided with and solid insulation set between in tank body body
Limited step on internal face, limited step limit block is in one end of solid insulation set dorsad loading port.
It is internal that solid insulation set is adhesively fixed on tank body sheet.
The technical scheme of the closed type switch of the present invention is as follows：
Closed type switch, including arc-chutes and the operating mechanism that is connected thereon, arc-chutes include tank body, tank body
Tank body body be pipe box shape, tank body be originally provided with vivo by dynamic and static power connection end it is relative be assembled connect electric main body, connect electric main body
Periphery be provided with for arc extinguishing after insulating gas blow to tank body body internal face open type or the blowout side of open type, tank
It is equipped with body body every the solid insulation set being located between the internal face of the outer peripheral face and tank body body for connecing electric main body, solid is exhausted
The internal face of edge set is to prevent the baffling-face that the insulating gas for and baffling commutate for intercepting from blowout side spray, solid insulation set
Outside wall surface is the fitting surface coordinated with the internal face of tank body body, and at least one is that bore is not little in the two-port of tank body body
External diameter in solid insulation set, so that solid insulation set inserting is to the intrinsic loading port of tank body.
Solid insulation set can fill in tank body sheet in vivo from loading port in the present invention, by the outside wall surface and tank of solid insulation set
The internal face of body body coordinates realizes positioning, so that connect electric main body in solid insulation set, and solid insulation set will be every setting
Between the outlet position of blowout side and the internal face of tank body body, and the internal face of solid insulation set is for stopping blowout side
The insulating gas of ejection and make the baffling-face that the insulating gas baffling of ejection commutates.When in use, the spout spray of driven power connection end
After the insulating gas of injection is to the high-voltage arc arc extinguishing in fracture, go out from the blowout side spray connect in electric main body, now insulating gas
Not only flow velocity and temperature are still higher, and will be mingled with some metallic dusts and ionization analyte, and now high temperature and high speed is mixed
Closing gas will collide on the baffling-face of fixed solid insulation sleeve, the baffling-face will the mixed gas powerful to wind-force play and hold back
The effect of system, is released with the energy that mixed gas are caused by collision effect, so as to the mixing for avoiding going out from blowout side spray
Impact erosion of the gas to the internal face of tank body body.Meanwhile, the insulation that solid insulation set is not only able to strengthen in arc extinguishing room is strong
Degree, and in the case of the baffling-face of the continuous colliding solid insulation sleeve of mixed gas, even if baffling-face becomes uneven,
Because of the internal face of tank body body electric field that is complete and causing residing position can be kept to keep stablizing, connect electric main body and exist so as to avoid
There is the breakdown problem of tank skin of tank body body caused by electric field change in blowout side.
Description of the drawings
Fig. 1 be the present invention closed type switch embodiment 1 in arc-chutes structural representation；
Fig. 2 be the present invention closed type switch embodiment 2 in arc-chutes structural representation.
Specific embodiment
The embodiment 1 of closed type switch in the present invention：As shown in figure 1, the closed type switch is a kind of high pressure
Breaker, including arc-chutes and the operating mechanism that is connected thereon, the structure of operating mechanism belongs to prior art, arc-chutes master
To be made up of tank body, dynamic power connection end 2 and quiet power connection end 4.Tank body is made up of tank body body 3 and solid insulation set 5, tank body sheet
Body 3 is the pipe box body that extends in left-right direction, the dynamic power connection end 2 and left and right in tank body body 3 of quiet power connection end 4 is relative coaxially sets
That what is put and form that left and right extends connects electric main body, and offers at the bottom side position of the outside wall surface of quiet power connection end 4 downward opening
The blowout side 6 of outlet type.Solid insulation set 5 is sleeved on the periphery for connecing electric main body, and the two ends of solid insulation set 5 are from connecing the two of electricity
End is stretched out, and the internal face of solid insulation set 5 is baffling-face, the outside wall surface of solid insulation set 5 and the internal face gap of tank body body 3
It is adhesively fixed together with merga pass side face tack coat 7 between the two.The left port of tank body body 3 is provided with projection outside
Outward flange 10, right output port on wall is provided with inner flange 8 of the projection on internal face, on outward flange 10 and inner flange 8 respectively
The end cap being sealed in tank body body two-port is equipped with, so that the left port of tank body body 3 is that bore is equal with endoporus aperture
Loading port, the right output port of tank body body 3 is the little spacing necking in relative aperture endoporus aperture, and such solid insulation set can be from tank body
The loading port inserting of the left end of body 3 is in tank body body 3, and the internal face along tank body body 3 slides into the institute of quiet power connection end 4
At place position.
The inner flange 8 of the right-hand member of tank body body 3 forms the spacing ring of projection in the inner side of internal face, and the spacing ring block is spacing
Solid insulation set 5 is prevented to deviate from from the right output port of tank body body 3 in the right-hand member of solid insulation set 5, i.e. the two of solid insulation set 5
End is flush to respectively the relative side ring end face of inner flange 8 and outward flange 10.
Tank body body 3 is metal can, and the top of tank body body 3 is provided with the moved end wire hole for connecting dynamic power connection end 2 respectively
With the static side wire hole for connecting quiet power connection end 4, respectively flange is connected with insulating basin 1 on moved end wire hole and static side wire hole,
And offer the perforation that the wiring construction for moving terminals 2 and quiet terminals 4 is passed, the perforation at the top of solid insulation set 5
Aperture it is consistent with the aperture of wire hole.
Solid insulation set 5 is in addition to using polytetrafluoroethylene (PTFE) material, it would however also be possible to employ the high temperature insulating material such as ceramic material, this
Class material will not reduce insulating properties after high temperature hot gas stream is run into because of the change of temperature, and solid insulation set 5 can also
It is that multi-layer material is composited, its objective is that the dielectric difference using unlike material improves quiet power connection end to manufacture electric capacity
The electric field of 4 peripheries, but the baffling-face of solid insulation set 5 must be the heat-resisting etc. of layer residing for high-temperature insulation material, i.e. baffling-face
Level is not less than C levels.The insulating gas of the periphery of quiet power connection end 4 can be heated in high-temperature electric arc and the situation that insulating properties are reduced occurs,
And the baffling-face of solid insulation set 5 is covered in the outlet side-lower of quiet power connection end 4, so that the thermal current discharged from quiet power connection end 4
To be stopped by the baffling-face of solid insulation set 5, it is to avoid the high-temperature insulation gas for being mingled with metallic dust and ionization analyte is straight
Connect and be injected on the internal face of tank body body 3.Set solid insulation set 5 thickness when, due to the insulation of solid insulation set 5 it is strong
Degree depends on its material and thickness, is that this ad hoc determines following steps to calculate the thickness of solid insulation set 5：
Calculation one：1st, according to insulating gas under the influence of thermal current, insulating capacity is lost completely for basis；
2nd, by calculating or test method, arc-chutes are known before solid insulation set 5 is not installed additional, it is right that arc-chutes can pass through
The minimum insulation distance of ground thunder and lightning and power frequency insulating test；
3rd, according to the minimum insulation distance in step 2, the thickness of the solid insulation set 5 needed in tank body body 3 is calculated,
But due to the dielectric strength difference of solid insulation material, so the solid insulation set 5 calculated according to insulation distance in step 2
Thickness can change with the different of material.
Calculation two：1st, by calculating or test method, know that arc-chutes before the resistance to ablation layer of insulation is not installed additional, go out
Arc chamber can be by the insulation distance of type approval test；
2nd, according to the minimum insulation distance for not installing the resistance to ablation layer that insulate in minimum insulation distance, with mode one in step 1 additional,
It is compared, calculates the thickness of the solid insulation set 5 needed in breaker.
Therefore pass-through mode two can to greatest extent reduce the diameter of tank body body 3.
Because all solids insulating materials is different according to production technology, also great changes have taken place for itself dielectric strength, so this
Embodiment only specifies the referential data of some conventional solid insulating materials, it is assumed that the dielectric strength of sulfur hexafluoride is 1, according to meter
Calculate and test, the dielectric strength of epoxy resin is 4-6, and the dielectric strength of sulphurated siliastic is 3-4, and the dielectric strength of polytetrafluoro is
2-3, the dielectric strength of porcelain insulating materials is 5-7.
When the arc-chutes are assembled, solid insulation set 5 can be loaded from the left port of tank body body 3, and by tank
Side face adhesive linkage 7 is coated on the internal face of body body 3 and solid insulation set 5 is fixed on into specified location or by exhausted in solid
Coat side face adhesive linkage 7 and make side face adhesive linkage 7 enter tank body body 3 together in company with solid insulation set 5 on the outer peripheral face of edge set 5
Inside fix realizing the position of solid insulation set 5, after solid insulation set 5 is assembled, then by dynamic power connection end 2 and quiet power connection end 4
It is assemblied in tank body body 3, and the encapsulation of arc-chutes is realized by end cap 9 and insulating basin 1.
The embodiment 2 of closed type switch in the present invention：The present embodiment is with the difference of embodiment 1, such as Fig. 2 institutes
Show, the right-hand member top pressure block of solid insulation set 25 is including the right-hand member top pressure block of the left side of spacing ring, i.e. solid insulation set 25
The left side of flange 28, and the end face adhesive linkage 27 of annular, end face adhesive linkage are provided between inner flange 28 and solid insulation set 25
27 endoporus aperture and the aperture of solid insulation set 25 are equal, and the inwall of the outside wall surface of solid insulation set 25 and tank body body 23
Face interference fit, so that solid insulation set 25 is adhesively fixed on inner flange 28 by end face adhesive linkage 27.So need by
When solid insulation set 25 loads tank body body 23, both formerly end face tack coat 27 can be coated in into the left ring end face of inner flange 28
Afterwards, then by solid insulation set 25 fill in and carry out position in tank body body 23 and fix；End face adhesive linkage 27 can be coated in again
Behind the right side of solid insulation set 25, then end face adhesive linkage 27 is filled in together in tank body body 23 in company with solid insulation set 25,
Until the top pressure of solid insulating layer 27 is on inner flange 28.
In the above-described embodiments, solid insulation set is adhesively fixed on the internal face of tank body body, at it by adhesive linkage
In his embodiment, solid insulation set directly can also be assemblied on the internal face of tank body body in swelling, i.e., solid insulation set is outer
The internal face interference fit of wall and tank body body.
In the above-described embodiments, the blowout side on quiet power connection end is the aperture in its bottom side position, in other enforcements,
The blowout side can also be opening of notch form for opening up in the periphery open spaces or quiet power connection end of static contact etc..
In the above-described embodiments, the bore of the loading port of tank body body is equal with the endoporus aperture of tank body body, compare solid
The external diameter of insulation sleeve is bigger or equal, and in other embodiments, the loading port can also be bigger than the endoporus aperture of tank body body
Many enlargings.
In the above-described embodiments, left end of the loading port in tank body body, in other embodiments, loading port can also be located
Right-hand member or two ends in tank body body, now solid insulation be enclosed within tank body originally in vivo will can only using side face fix by the way of carry out
Positioning, such as side face swelling mode, side face bonding way.
In the above-described embodiments, inner flange block solid insulation set is passed through in tank body body right-hand member, in other embodiments,
The limited step of the spacing ring type that the inner flange is formed on the internal face of tank body body can also pass through the inwall of tank body body
The limited step of the forms such as projection shape, the semi-circular of projection on face replaces.
The embodiment of arc-chutes in the present invention：The structure of the structure of arc-chutes and arc-chutes in above-mentioned enforcement in the present embodiment
It is identical, therefore repeat no more.
The embodiment of tank body in the present invention：The structure phase of the structure of tank body and tank body in above-described embodiment in the present embodiment
Together, therefore repeat no more.
Claims (10)
1. tank body, including for accommodating the tank body body of the relative pipe box shape for connecing electric main body being assembled of dynamic and static power connection end, tank
Body body is metal can body, it is characterised in that be equipped with tank body body for every being located at the outer peripheral face and tank that connect electric main body
Solid insulation set between the internal face of body body, the internal face of solid insulation set is for intercepting from the blowout side for connecing electric main body
The baffling-face of the insulating gas for and baffling commutation is prevented in spray, and the outside wall surface of solid insulation set is to coordinate with the internal face of tank body body
Fitting surface, and in the two-port of tank body body at least one be bore not less than solid insulation set external diameter, for solid it is exhausted
Edge inserting is attached to the intrinsic loading port of tank body.
2. tank body according to claim 1, it is characterised in that the temperature classification of the inwall of solid insulation set is not less than C levels.
3. tank body according to claim 1, it is characterised in that the two-port one of tank body body be loaded into mouth, another
Limited step of the projection on tank body inner body wall face is provided with and solid insulation set between, limited step limit block is exhausted in solid
Edge covers one end of dorsad loading port.
4. tank body according to claim 3, it is characterised in that sandwiched between limited step and the opposite face of solid insulation set
There is end face tack coat, solid insulation set is adhesively fixed on limited step by end face tack coat.
5. tank body as claimed in any of claims 1 to 4, it is characterised in that the outside wall surface and tank of solid insulation set
Side face tack coat is folded between the internal face of body body, solid insulation set is adhesively fixed on tank body body by side face tack coat
Internal face.
6. arc-chutes, including tank body, the tank body body of tank body for pipe box shape metal can body, tank body be originally provided with vivo by it is dynamic,
Quiet power connection end is relative be assembled connect electric main body, connect electric main body periphery be provided with for arc extinguishing after insulating gas blow to tank body
The open type of the internal face of body or the blowout side of open type, it is characterised in that to be equipped with tank body body and meet electric master every being located at
Solid insulation set between the outer peripheral face of body and the internal face of tank body body, the internal face of solid insulation set is for intercepting from blowing
Go out the baffling-face that side spray prevents the insulating gas and baffling commutation for, the outside wall surface of solid insulation set is the internal face with tank body body
At least one is bore not less than the external diameter of solid insulation set, for solid in the fitting surface of cooperation, and the two-port of tank body body
The inserting of body insulation sleeve is to the intrinsic loading port of tank body.
7. arc-chutes according to claim 6, it is characterised in that stretch from the two ends for connecing electric main body at the two ends of solid insulation set
Go out.
8. arc-chutes according to claim 6, it is characterised in that the two-port one of tank body body is loaded into mouth, another
The individual limited step that projection is provided with and solid insulation set between on tank body inner body wall face, limited step limit block is in solid
One end of insulation sleeve dorsad loading port.
9. arc-chutes according to claim 6 or 7 or 8, it is characterised in that solid insulation set is adhesively fixed on tank body body
It is interior.
10. closed type switch, including arc-chutes and the operating mechanism being connected thereon, arc-chutes include tank body, tank body
Tank body body for pipe box shape metal can body, tank body be originally provided with vivo by dynamic and static power connection end it is relative be assembled connect electricity
Main body, connect electric main body periphery be provided with for arc extinguishing after insulating gas blow to tank body body internal face open type or opening
The blowout side of formula, it is characterised in that be equipped with tank body body every the inwall for being located at the outer peripheral face and tank body body for connecing electric main body
Solid insulation set between face, the internal face of solid insulation set is insulating gas and the baffling preventing from blowout side spray for obstruct
The baffling-face of commutation, the outside wall surface of solid insulation set is the fitting surface coordinated with the internal face of tank body body, and tank body body
In two-port at least one be bore not less than solid insulation set external diameter, for solid insulation set inserting to tank body it is intrinsic
Loading port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602179.8A CN104362535B (en) | 2014-10-31 | 2014-10-31 | Tank, arc extinguish chamber using tank, and sealed switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602179.8A CN104362535B (en) | 2014-10-31 | 2014-10-31 | Tank, arc extinguish chamber using tank, and sealed switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104362535A CN104362535A (en) | 2015-02-18 |
| CN104362535B true CN104362535B (en) | 2017-05-03 |
Family
ID=52529773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410602179.8A Expired - Fee Related CN104362535B (en) | 2014-10-31 | 2014-10-31 | Tank, arc extinguish chamber using tank, and sealed switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362535B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417473B1 (en) * | 2000-07-14 | 2002-07-09 | Eaton Corporation | Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same |
| US8039771B2 (en) * | 2008-08-11 | 2011-10-18 | Eaton Corporation | Vacuum envelope including self-aligning end shield, vacuum interrupter, vacuum circuit interrupter and method including the same |
| CN104243598B (en) * | 2014-09-25 | 2017-07-25 | 海信集团有限公司 | A kind of information recommendation method and device |
| CN204243598U (en) * | 2014-10-31 | 2015-04-01 | 平高集团有限公司 | Tank body and use arc control device, the closed type switch of this tank body |
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2014
- 2014-10-31 CN CN201410602179.8A patent/CN104362535B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104362535A (en) | 2015-02-18 |
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