CN105405710A - Vacuum arc-extinguishing chamber having relatively high structural strength and used for plastic pole column - Google Patents
Vacuum arc-extinguishing chamber having relatively high structural strength and used for plastic pole column Download PDFInfo
- Publication number
- CN105405710A CN105405710A CN201510987976.7A CN201510987976A CN105405710A CN 105405710 A CN105405710 A CN 105405710A CN 201510987976 A CN201510987976 A CN 201510987976A CN 105405710 A CN105405710 A CN 105405710A
- Authority
- CN
- China
- Prior art keywords
- structural strength
- ceramic case
- vacuum arc
- extinguishing chamber
- reinforcing ring
- 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
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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
Abstract
The invention discloses a vacuum arc-extinguishing chamber having the relatively high structural strength and used for a plastic pole column. The vacuum arc-extinguishing chamber comprises a ceramic shell (3); an inner chamber (2) of the vacuum arc-extinguishing chamber is in the ceramic shell (3); an outer insulation layer (1) is arranged outside the ceramic shell (3); two ends of the ceramic shell (3) are each provided with a metal sealed connection ring (6); a lining reinforcing ring (5) is arranged in the metal sealed connection ring (6); and the outside diameter of the lining reinforcing ring (5) is equal to the inside diameter of the metal sealed connection ring (6). The vacuum arc-extinguishing chamber disclosed by the invention has the benefits of being high in structural strength and compression resistance, good in product quality and high in reliability.
Description
Technical field
The present invention relates to a kind of vacuum interrupter, the plastics pole vacuum interrupter that particularly a kind of structural strength is higher.
Background technology
Plastics pole vacuum interrupter and major loop electric-conductor epoxy resin is carried out overall sealing injection moulding make whole pole become a global facility.Current plastics pole is the two ends first metal sealing boxing being connected on ceramic case, assemble the parts such as contact, by arc extinguishing indoor chamber vacuum, then form external insulation layer at the outer casting epoxy resin of ceramic case, but after welding for china with metal, the resistance to tension of weld is approximately 1300kg/cm
2be equivalent to about 127MPa, and during sealing injection moulding, injection pressure is greater than 100MPa usually, simultaneously, the weld of metal sealing ring and ceramic case also will bear thermal mismatch stress when injection moulding is heated, therefore, when sealing injection moulding, the weld of metal sealing ring and ceramic case is easily destroyed and leak gas, product quality reduces, poor reliability during use.
Summary of the invention
The object of the invention is to, the plastics pole vacuum interrupter providing a kind of structural strength higher.It is high that the present invention has structural strength, and anti-pressure ability is strong, good product quality, the feature that reliability is high.
Technical scheme of the present invention: the plastics pole vacuum interrupter that a kind of structural strength is higher, include ceramic case, it is the indoor room of vacuum extinction in ceramic case, external insulation layer is provided with outside ceramic case, the two ends of ceramic case are respectively provided with a metal sealing ring, be provided with liner reinforcing ring in metal sealing ring, the external diameter of liner reinforcing ring is consistent with the internal diameter of metal sealing ring.
The plastics pole vacuum interrupter that aforesaid structural strength is higher, described liner reinforcing ring is absolute construction.
The plastics pole vacuum interrupter that aforesaid structural strength is higher, described liner reinforcing ring and ceramic case are formed in one structure.
The plastics pole vacuum interrupter that aforesaid structural strength is higher, is provided with resilient coating between described ceramic case and external insulation layer.
Beneficial effect of the present invention: the present invention by arranging liner reinforcing ring in metal sealing ring, improve the structural strength of metal sealing ring and ceramic case junction, enhance anti-pressure ability, during injection moulding, metal sealing ring and ceramic case junction not easily damaged, decrease the spoilage of product, improve product quality, there is good injection moulding reliability.In sum, it is high that the present invention has structural strength, and anti-pressure ability is strong, good product quality, the beneficial effect that reliability is high.
Empirical tests, the anti-pressure ability of metal sealing ring of the present invention and ceramic case junction is greater than 300Mpa.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is the d district enlarged diagram of accompanying drawing 1 when adopting a kind of liner reinforcing ring;
Accompanying drawing 3 is the d district enlarged diagram of accompanying drawing 1 when adopting another kind of liner reinforcing ring.
Description of reference numerals: 1-external insulation layer, the indoor room of 2-vacuum extinction, 3-ceramic case, 4-resilient coating, 5-liner reinforcing ring, 6-metal sealing ring.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiments of the invention: the plastics pole vacuum interrupter that a kind of structural strength is higher, as shown in Figure 1, include ceramic case 3, ceramic case 3 is cylindrical shape, it is the indoor room 2 of vacuum extinction in ceramic case 3, external insulation layer 1 is provided with outside ceramic case 3, external insulation layer 1 is obtained by sealing injection moulding epoxy resin, the two ends of ceramic case 3 are provided with metal sealing ring 6, metal sealing ring 6 is made by the metal material that the coefficient of expansion of the coefficient of expansion and ceramic case 3 is close, metal sealing ring 6 is connected by welding manner with ceramic case 3, liner reinforcing ring 5 is provided with in metal sealing ring 6, liner reinforcing ring 5 is ceramic ring, the external diameter of liner reinforcing ring 5 is consistent with the internal diameter of metal sealing ring 6.
As shown in Figure 2, described liner reinforcing ring 5 is absolute construction, and it is an independent annulus, is arranged on the top of ceramic case 3, the inside of metal sealing ring 6, liner reinforcing ring 5 handling ease of this structure.
As shown in Figure 3, described liner reinforcing ring 5 and ceramic case 3 are formed in one structure, being that middle diameter is large by being made into by ceramic case 3, obtaining after the structure that diameter is little, there is boss at two ends at two ends, liner reinforcing ring 5 structural strength of this structure is higher, but makes and comparatively bother.
Resilient coating 4 is provided with between described ceramic case 3 and external insulation layer 1.
During injection moulding, injection pressure inwardly applies from the external vertical of ceramic case 3 and metal sealing ring 6 junction, simultaneously, because ceramic case 3 is different with the coefficient of expansion of metal sealing ring 6, and ceramic case 3 and metal sealing ring 6 are in hot environment during injection moulding, there is thermal mismatch stress, make the structure of junction very unstable, easily break and cause gas leakage in junction under the effect of injection pressure, after use liner reinforcing ring 5, injection pressure is radially applied to after on liner reinforcing ring 5 and is absorbed, avoid ceramic case 3 destroyed under injection pressure with the junction of metal sealing ring 6.
Claims (4)
1. the plastics pole vacuum interrupter that a structural strength is higher, it is characterized in that: include ceramic case (3), it is the indoor room (2) of vacuum extinction in ceramic case (3), external insulation layer (1) is provided with outside ceramic case (3), the two ends of ceramic case (3) are respectively provided with a metal sealing ring (6), be provided with liner reinforcing ring (5) in metal sealing ring (6), the external diameter of liner reinforcing ring (5) is consistent with the internal diameter of metal sealing ring (6).
2. the plastics pole vacuum interrupter that structural strength according to claim 1 is higher, is characterized in that: described liner reinforcing ring (5) is absolute construction.
3. the plastics pole vacuum interrupter that structural strength according to claim 1 is higher, is characterized in that: described liner reinforcing ring (5) and ceramic case (3) are formed in one structure.
4. the plastics pole vacuum interrupter that structural strength according to claim 1 is higher, is characterized in that: be provided with resilient coating (4) between described ceramic case (3) and external insulation layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987976.7A CN105405710A (en) | 2015-12-24 | 2015-12-24 | Vacuum arc-extinguishing chamber having relatively high structural strength and used for plastic pole column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987976.7A CN105405710A (en) | 2015-12-24 | 2015-12-24 | Vacuum arc-extinguishing chamber having relatively high structural strength and used for plastic pole column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405710A true CN105405710A (en) | 2016-03-16 |
Family
ID=55471128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510987976.7A Pending CN105405710A (en) | 2015-12-24 | 2015-12-24 | Vacuum arc-extinguishing chamber having relatively high structural strength and used for plastic pole column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105405710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545615A (en) * | 2018-11-15 | 2019-03-29 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038827A (en) * | 2006-03-17 | 2007-09-19 | 北海银河高科技产业股份有限公司 | Solid sealed arc interrupter pole for intelligentized AC vacuum circuit-breaker |
| CN203931924U (en) * | 2014-07-17 | 2014-11-05 | 江苏华通电气科技有限公司 | A kind of pole of vacuum circuit-breaker |
| CN204857567U (en) * | 2015-07-30 | 2015-12-09 | 麦克奥迪（厦门）电气股份有限公司 | Solid -sealed pole |
| WO2015185335A1 (en) * | 2014-06-04 | 2015-12-10 | Siemens Aktiengesellschaft | Method for the production a solid-insulated circuit-breaker pole, and solid-insulated circuit breaker pole |
| CN205319081U (en) * | 2015-12-24 | 2016-06-15 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | Plastics utmost point vacuum interrupter for post |
-
2015
- 2015-12-24 CN CN201510987976.7A patent/CN105405710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038827A (en) * | 2006-03-17 | 2007-09-19 | 北海银河高科技产业股份有限公司 | Solid sealed arc interrupter pole for intelligentized AC vacuum circuit-breaker |
| WO2015185335A1 (en) * | 2014-06-04 | 2015-12-10 | Siemens Aktiengesellschaft | Method for the production a solid-insulated circuit-breaker pole, and solid-insulated circuit breaker pole |
| CN203931924U (en) * | 2014-07-17 | 2014-11-05 | 江苏华通电气科技有限公司 | A kind of pole of vacuum circuit-breaker |
| CN204857567U (en) * | 2015-07-30 | 2015-12-09 | 麦克奥迪（厦门）电气股份有限公司 | Solid -sealed pole |
| CN205319081U (en) * | 2015-12-24 | 2016-06-15 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | Plastics utmost point vacuum interrupter for post |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545615A (en) * | 2018-11-15 | 2019-03-29 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof |
| CN109545615B (en) * | 2018-11-15 | 2019-12-27 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum arc-extinguishing chamber, vacuum direct-current high-voltage relay and preparation method thereof |
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| 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: 20160316 |