CN203674069U - Vacuum arc-extinguishing chamber with positioning function sealing ring - Google Patents
Vacuum arc-extinguishing chamber with positioning function sealing ring Download PDFInfo
- Publication number
- CN203674069U CN203674069U CN201420011271.2U CN201420011271U CN203674069U CN 203674069 U CN203674069 U CN 203674069U CN 201420011271 U CN201420011271 U CN 201420011271U CN 203674069 U CN203674069 U CN 203674069U
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- Prior art keywords
- sealing ring
- cover plate
- positioning function
- fixed
- bellows
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 230000003068 static effect Effects 0.000 claims description 16
- 229910052573 porcelain Inorganic materials 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000008033 biological extinction Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
A vacuum arc-extinguishing chamber with a positioning function sealing ring comprises a ceramic shell, a shielding cylinder, a movable conducting rod, a movable cover plate, a moving contact, a fixed conducting rod, a fixed contact, a fixed cover plate and a bellows. The beneficial effects of the utility model are that: a first sealing ring is fixed to the upper and lower ends of the ceramic shell via elastic parts, so that the movable cover plate and the fixed cover plate can be prevented from falling off effectively, and accordingly, the vacuum arc-extinguishing chamber can avoid air leakage, and the service life of the vacuum arc-extinguishing chamber is improved; the first sealing ring and a second sealing ring are extended outwards to form an arc-shaped planar structure, so that a certain buffer effect is realized among the movable cover plate, the fixed cover plate and the ceramic shell; a bellows shielding cover sleeves on the outside of the bellows, so that the situation that the contacts generate a lot of metallic vapor and liquid drop splash during an arcing process to thereby cause reduction in the insulating intensity of the shell, is prevented; the shielding cover is arranged between the ceramic shell and the fixed conducting rod, so that the internal electric field distribution of the vacuum arc-extinguishing chamber with the positioning function sealing ring can be improved.
Description
Technical field
The utility model relates to a kind of vacuum interrupter with positioning function sealing ring, the vacuum interrupter in electric power project engineering field.
Background technology
Vacuum interrupter, has another name called vacuum switch tube, is the core component of vacuum switch.By manage insulating properties that interior vacuum is good high-tension circuit is cut off the electricity supply after blow-out cut off electric current rapidly, avoid accident and unexpected generation, be mainly used in the power transmission and distribution control system of electric power.The airtight insulating ceramics shell of vacuum interrupter, moving cover plate, quiet cover plate, corrugated stainless steel tubing have formed airtight insulation system.Moving conductive rod, stationary contact sealing ring head, quiet race cambered surface, moving contact, moving race cambered surface, moving conductive rod have formed the conducting system of arc control device.Moving cover plate, the quiet cover plate of the arc control device stainless steel material of general structure are in direct contact with on ceramic package, because both coefficients of expansion differ larger, intensity and the air-tightness of moving cover plate, quiet cover plate and ceramic package sealing-in are affected, cause that moving cover plate, quiet cover plate come off, cause gas leakage, affect vacuum life.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of vacuum interrupter with positioning function sealing ring that has prevented that moving cover plate, quiet cover plate from coming off.
A kind of vacuum interrupter with positioning function sealing ring comprises ceramic package, shielding cylinder, moving conductive rod, moving cover plate, moving contact, static conductive rod, fixed contact, quiet cover plate, bellows, described moving cover plate downside is connected with the first sealing ring, the first sealing ring lower outside is provided with some elastomeric elements, the first sealing ring is fixed by elastomeric element and ceramic package upper end, quiet cover plate upside is connected with the second sealing ring, the second sealing ring upper outside is provided with some elastomeric elements, and the first sealing ring is fixed by elastomeric element and ceramic package lower end.
Preferably, the first described sealing ring upper end stretches out and is circular arc.
Preferably, the second described sealing ring upper end stretches out and is circular arc.
Preferably, described bellows outside is socketed with bellows shield cover.
Preferably, described static conductive rod lower end be connected with conducting block and this conducting block in quiet cover plate below.
Preferably, between described ceramic package and static conductive rod, be provided with quiet radome.
The beneficial effects of the utility model are:
1. moving cover plate, quiet cover plate are in direct contact with on ceramic package, both are because the coefficient of expansion differs larger, intensity and the air-tightness of moving cover plate, quiet cover plate and ceramic package sealing-in are affected, thereby cause moving cover plate and quiet cover plate to come off, the first sealing ring is fixed by elastomeric element and ceramic package upper end, the first sealing ring is fixed by elastomeric element and ceramic package lower end, can effectively anti-stop cover plate and the coming off of quiet cover plate, thereby prevent vacuum interrupter gas leakage, improve vacuum interrupter useful life;
2. stretching out of the first sealing ring and the second sealing ring is circular arc planar structure and makes between cover plate, quiet cover plate and ceramic package, to have certain cushioning effect, extends the life-span of product;
3. bellows outside is socketed with bellows shield cover, prevents that contact from producing a large amount of metallic vapours and droplets in arcing process, pollutes the inwall of ceramic package, avoids causing the dielectric strength of shell decline or produce flashover;
4. between ceramic package and static conductive rod, be provided with radome, can improve the Electric Field Distribution of the vacuum extinction chamber interior with positioning function sealing ring, be conducive to the miniaturization of the vacuum interrupter insulation crust with positioning function sealing ring.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, structure of the present utility model is described further.
Embodiment 1
As shown in Figure 1, a kind of vacuum interrupter with positioning function sealing ring comprises ceramic package 1, shielding cylinder 2, moving conductive rod 3, moving cover plate 4, moving contact 5, static conductive rod 6, fixed contact 7, quiet cover plate 8, bellows 10, described moving cover plate 4 downsides are connected with the first sealing ring 9, the first sealing ring 9 lower outsides are provided with some elastomeric elements 14, the first sealing ring 9 is fixed by elastomeric element 15 and ceramic package 1 upper end, quiet cover plate 8 upsides are connected with the second sealing ring 14, the second sealing ring 14 upper outside are provided with some elastomeric elements, the first sealing ring 9 is fixed by elastomeric element and ceramic package 1 lower end, the first sealing ring upper end stretches out and is circular arc, the second sealing ring 14 upper ends stretch out and are circular arc, bellows 10 outsides are socketed with bellows shield cover, static conductive rod 6 lower ends be connected with conducting block 11 and this conducting block 11 in quiet cover plate 8 belows, between ceramic package 1 and static conductive rod 6, be provided with quiet radome 12.
Embodiment 2
As shown in Figure 1, a kind of vacuum interrupter with positioning function sealing ring comprises ceramic package 1, shielding cylinder 2, is located at the moving conductive rod 3 in ceramic package 1, the moving cover plate 4 that is socketed in moving conductive rod 3 upper ends and is connected with ceramic package 1, be connected to moving conductive rod 3 lower ends moving contact 5, be located at static conductive rod 6 in ceramic package 1, be located at static conductive rod 6 upper ends setting corresponding to moving contact 5 fixed contact 7, be socketed in the quiet cover plate 8 being connected in static conductive rod 5 lower ends and with ceramic package 1, between described moving cover plate 4 and ceramic package 1, be equipped with the first sealing ring 9.Described sealing ring 9 upper ends stretch out and are arc-shaped structure.Described moving conductive rod 3 outsides are provided with and the bellows 10 that moves cover plate 4 and be connected, and be positioned at bellows 10 outsides and be provided with bellows shield cover 13 on described moving conductive rod 3.Described quiet cover plate 8 bottoms are provided with the conducting block 11 being connected with static conductive rod 5.In described ceramic package 1, be positioned at static conductive rod 5 outsides and be also connected with quiet radome 12.
As shown in Figure 1, when real work, sealing ring 9 between moving cover plate 4 and ceramic package 1 can make cover plate 4 be connected more firm with ceramic package 1, avoid moving cover plate 4 easily to come off, simultaneously to the good positioning action of moving conductive rod 3, merogenesis ring 9 upper ends stretch out and are arc-shaped structure and make cover plate 4 and moving conductive rod 3 have certain cushioning effect, extend the useful life of parts, the bellows 10 that this structure moving conductive rod 3 outsides are provided with can not only be kept apart the vacuum state of the vacuum extinction chamber interior with sealing ring positioning function and outside atmospheric condition, and can make moving contact 5 move within the limits prescribed together with moving conductive rod 3, to complete closure and the breaking operation of vacuum switch, this structure corrugated pipe 10 outsides are provided with bellows shield cover 13, prevent that contact from producing a large amount of metallic vapours and droplets in arcing process, pollute the inwall of ceramic package 1, avoid causing the dielectric strength of shell decline or produce flashover.Conducting block 11, compact conformation, reasonable in design.The quiet radome 12 of static conductive rod 5 outsides can improve the Electric Field Distribution of the vacuum extinction chamber interior with positioning function sealing ring, be conducive to the miniaturization of the vacuum interrupter insulation crust with positioning function sealing ring, design between a kind of moving cover plate at stainless steel material, quiet cover plate and ceramic package and there is certain cushioning effect, prevented that moving cover plate, quiet cover plate from easily coming off.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all should think and belong to protection range of the present utility model.
Claims (6)
1. the vacuum interrupter with positioning function sealing ring, comprise ceramic package, shielding cylinder, moving conductive rod, moving cover plate, moving contact, static conductive rod, fixed contact, quiet cover plate, bellows, it is characterized in that: described moving cover plate downside is connected with the first sealing ring, the first sealing ring lower outside is provided with some elastomeric elements, the first sealing ring is fixed by elastomeric element and porcelain shell upper end, quiet cover plate upside is connected with the second sealing ring, the second sealing ring upper outside is provided with some elastomeric elements, and the first sealing ring is fixed by elastomeric element and porcelain shell lower end.
2. according to claim 1 with the vacuum interrupter of positioning function sealing ring, it is characterized in that: the first described sealing ring upper end stretches out and is circular arc.
3. according to claim 1 with the vacuum interrupter of positioning function sealing ring, it is characterized in that: the second described sealing ring lower end stretches out and is circular arc.
4. according to claim 1 with the vacuum interrupter of positioning function sealing ring, it is characterized in that: described bellows outside is socketed with bellows shield cover.
5. according to claim 1 with the vacuum interrupter of positioning function sealing ring, it is characterized in that: described static conductive rod lower end be connected with conducting block and this conducting block in quiet cover plate below.
6. according to claim 1 with the vacuum interrupter of positioning function sealing ring, it is characterized in that: between described ceramic package and static conductive rod, be provided with quiet radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011271.2U CN203674069U (en) | 2014-01-09 | 2014-01-09 | Vacuum arc-extinguishing chamber with positioning function sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011271.2U CN203674069U (en) | 2014-01-09 | 2014-01-09 | Vacuum arc-extinguishing chamber with positioning function sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674069U true CN203674069U (en) | 2014-06-25 |
Family
ID=50970336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011271.2U Expired - Lifetime CN203674069U (en) | 2014-01-09 | 2014-01-09 | Vacuum arc-extinguishing chamber with positioning function sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319167A (en) * | 2014-11-11 | 2015-01-28 | 厦门理工学院 | Dual-vacuum arc-extinguishing chamber fixed and encapsulated with epoxy resin |
| CN108565178A (en) * | 2018-06-21 | 2018-09-21 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of vacuum extinction cell structure with dual-vacuum chamber |
-
2014
- 2014-01-09 CN CN201420011271.2U patent/CN203674069U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319167A (en) * | 2014-11-11 | 2015-01-28 | 厦门理工学院 | Dual-vacuum arc-extinguishing chamber fixed and encapsulated with epoxy resin |
| CN104319167B (en) * | 2014-11-11 | 2016-08-17 | 厦门理工学院 | The double vacuum interrupter of epoxy resin sealing |
| CN108565178A (en) * | 2018-06-21 | 2018-09-21 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of vacuum extinction cell structure with dual-vacuum chamber |
| CN108565178B (en) * | 2018-06-21 | 2024-04-09 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | Vacuum arc-extinguishing chamber structure with double vacuum chambers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314000 No. 2, No. 1, building 17, No. 1336, Hangfu Road, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Xuhong Vacuum Electric Appliance Co.,Ltd. Address before: 311000 No. 22, Zhenxing East Road, Linping, Hangzhou, Zhejiang Patentee before: HANGZHOU XUHONG VACUUM ELECTRIC APPLIANCE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |