CN101504895A - Novel air pressing type load switching unit - Google Patents
Novel air pressing type load switching unit Download PDFInfo
- Publication number
- CN101504895A CN101504895A CNA2009100012582A CN200910001258A CN101504895A CN 101504895 A CN101504895 A CN 101504895A CN A2009100012582 A CNA2009100012582 A CN A2009100012582A CN 200910001258 A CN200910001258 A CN 200910001258A CN 101504895 A CN101504895 A CN 101504895A
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- load switch
- moving contact
- load
- novel
- insulation shell
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Abstract
The invention relates to a novel pneumatic load switch unit. The novel pneumatic load switch unit has small volume; live parts in each phase are sealed in an one-step injection molding insulating shell; an electric arc generated during brake separation is extinguished through compressed air generated during downward running of a dynamic contact sealed in a unit; and three phases are mutually independent, mutually insulated, and free from maintenance. The novel pneumatic load switch unit connects three-phase terminal units into a whole through an insulating partition board. The novel pneumatic load switch unit is not influenced by the changes of conditions such as humidity, dust and the like in the air and by insects, eliminates the potential safety hazard of short circuit among load switch phases, has high reliability, and is free from maintenance; and simultaneously, the terminal unit of each phase is sealed by using an insulating material so as to realize easy installation and easy replacement of a high-voltage load switch.
Description
Affiliated technical field
The present invention relates to the high voltage load switch in a kind of high voltage switchgear, belong to the high voltage power transmission and transforming field.
Background technology
Along with the continuous superhigh pressureization of China's power transmission and transformation in modern age voltage, power transformer, instrument transformer, electrical equipment, electronic devices and components reliability of operation and working life in abominable, high load capacity environment have been proposed more and more high requirement, adding global warming, environmentally friendly machine is had higher requirement, the mode of former SF6 gas arc extinguishing, the Arc arc extinguishing can produce harmful By-product etc. during because of switching manipulation, exists problems such as destroying environment, its performance to demand urgently improving.And the product of employing vacuum extinction, price is higher comparatively speaking, under the environment of falling over each other day by day unexpectedly fierceness, is not easy to dominate the market.
In the existing high voltage switchgear, on-load switch by air blowout, the assembly technology relative complex, it is bigger to adjust difficulty, and on-load switch artificial concentricity of adjusting when on/off switch can't guarantee, and the on-load switch facies unit can be affected with conditions such as airborne humidity, dust and insect, the potential safety hazard that has phase fault, and need often to safeguard that standardization level is not high, dismounting parts complexity, maintenance is difficulty.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, volume is less, the insulating protection ability is strong novel air pressing type load switching unit device, use not environmental protection, dangerous, problem such as easy care not to solve switchgear of the prior art.
Technical scheme of the present invention is achieved in that each facies unit in the on-load switch is closed in respectively in the insulation shell of a pattern tool injection-compression molding, stopped phase fault; The insulation shell outside is provided with enough big creepage distance, insulation shell the first half is fixed contact arc control device parts, insulation shell the latter half is the moving contact part, the inboard design of the latter half insulation shell has the position of guiding, guaranteed that so the existing pressure-operated load switch of the concentric rate error ratio in the motion process reduces greatly, thereby guaranteed that the on-load switch fixed contact contacts well with the on-load switch moving contact, reduced the failure rate that on-load switch occurs in the process of putting into operation, safe; Rely on the air in the compression moving contact piston chamber to carry out arc extinguishing during on-load switch moving contact separating brake, the energy that when the on-load switch moving contact moves downwards, produces, by the tower spring with the energy slow release, when separating brake is finished, energy just in time discharges and finishes, reduced existing pressure-operated load switch impact bigger keep away disease, increased the mechanical endurance of on-load switch; Do assurance because of most of parts precision all have mould, assembly difficulty reduces, and precision increases, and has improved inconsistent that the otherness of former artificial operation causes, has improved assembly technology greatly.
The invention has the beneficial effects as follows:
Novel air pressing type load switching unit of the present invention is simple in structure, volume is little, environmental protection, insulating protection ability are strong; Be not affected, eliminated the potential safety hazard of on-load switch phase fault, the reliability height with condition variations such as airborne humidity, dust and insect; Simultaneously, the housing that all is insulated material because of every middle mutually live part seals, and has realized the non-maintaining of switch.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is the structural representation of novel air pressing type load switching unit of the present invention
Among the figure
1 novel on-load switch arc control device
2 on-load switch moving contact compressed air gymnasium
3 moving contact piston chamber
Insulation shell on 4
5 on-load switch fixed contacts
6 times insulation shells
7 on-load switch moving contacts
8 tower springs
9 guiding positions
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.Need to prove before this, employed term or word can not limited interpretation be common implication or the implication in the dictionary in this specification and claims book, and should be based in order to illustrate that in the best way principle that its inventor can suitably define the notion of term is interpreted as meeting the implication and the notion of the technology of the present invention thought.Thereupon, the structure of representing in embodiment that this specification is put down in writing and the accompanying drawing is one of most preferred embodiment of the present invention, can not represent technological thought of the present invention fully, therefore should be understood that to have various equivalents and the variation that to replace for the present invention.
As shown in Figure 1, novel air pressing type load switching unit device of the present invention is made up of novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3), last insulation shell (4), on-load switch fixed contact (5), following insulation shell (6), on-load switch moving contact (7) and tower spring critical pieces such as (8).
Described novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3) seal by the isolating material housing of an injection-compression molding of mould on every side, this housing is isolated the three-phase live part fully, forms fully independently load switching unit of a three-phase.
Described novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3), realize that by mould one-time formed insulation shell is coupled to each other, they are moved on same axis, and good concentricity has guaranteed the good contact of dynamic/static contact.
Described on-load switch fixed contact (5) is installed on insulation shell (4) inboard and fixes, on-load switch moving contact (7) is installed on down insulation shell (6) inboard and is fixed, on-load switch moving contact (7) is in making process, carry out linear running by right angle guiding ad hoc in following insulation shell (6) inboard, the existing pressure-operated load switch of concentric rate error ratio in the motion process reduces greatly, thereby guaranteed that on-load switch fixed contact (5) contacts well with on-load switch moving contact (7), has reduced the failure rate that on-load switch occurs in the process of putting into operation.
Rely on the air in the compression moving contact piston chamber (3) to carry out arc extinguishing during described on-load switch moving contact (7) separating brake, the energy that produces when moving downwards at on-load switch moving contact (7), by tower spring (8) with the energy slow release, when separating brake is finished, energy just in time discharges and finishes, reduced existing pressure-operated load switch impact bigger keep away disease, increased the mechanical endurance of on-load switch.
Claims (4)
1. novel air pressing type load switching unit, comprise novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3), last insulation shell (4), on-load switch fixed contact (5), following insulation shell (6), on-load switch moving contact (7) and tower spring (8), it is characterized in that: novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3) seals by the isolating material housing of an injection-compression molding of mould on every side, the three-phase live part is isolated fully in this housing, forms fully independently load switching unit of a three-phase.
2. novel air pressing type load switching unit according to claim 1, it is characterized in that: novel on-load switch arc control device (1), on-load switch moving contact compressed air gymnasium (2), moving contact piston chamber (3), realize that by mould one-time formed insulation shell is coupled to each other, they are moved on same axis, good concentricity has guaranteed the good contact of dynamic/static contact.
3. novel air pressing type load switching according to claim 1 and 2, it is characterized in that: on-load switch fixed contact (5) is installed on insulation shell (4) inboard and fixes, on-load switch moving contact (7) is installed on down insulation shell (6) inboard and is fixed, on-load switch moving contact (7) is in making process, carry out linear running by right angle guiding ad hoc in following insulation shell (6) inboard, the existing pressure-operated load switch of concentric rate error ratio in the motion process reduces greatly, thereby guaranteed that on-load switch fixed contact (5) contacts well with on-load switch moving contact (7), has reduced the failure rate that on-load switch occurs in the process of putting into operation.
4. according to above claim 3 a described novel air pressing type load switching, it is characterized in that: rely on the air in the compression moving contact piston chamber (3) to carry out arc extinguishing during on-load switch moving contact (7) separating brake, the energy that produces when moving downwards at on-load switch moving contact (7), by tower spring (8) with the energy slow release, when separating brake is finished, energy just in time discharges and finishes, reduced existing pressure-operated load switch impact bigger keep away disease, increased the mechanical endurance of on-load switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100012582A CN101504895A (en) | 2009-01-16 | 2009-01-16 | Novel air pressing type load switching unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100012582A CN101504895A (en) | 2009-01-16 | 2009-01-16 | Novel air pressing type load switching unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101504895A true CN101504895A (en) | 2009-08-12 |
Family
ID=40977092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100012582A Pending CN101504895A (en) | 2009-01-16 | 2009-01-16 | Novel air pressing type load switching unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101504895A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374615A (en) * | 2015-12-09 | 2016-03-02 | 中国西电电气股份有限公司 | High-voltage high-current phase selection closing apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3641295A (en) * | 1969-07-07 | 1972-02-08 | Merlin Gerin | Polyphase circuit interrupter of the fluid blast puffer-type |
| CN1044361A (en) * | 1989-01-17 | 1990-08-01 | 梅兰日兰公司 | Gas-blast circuit breaker |
| CN2194544Y (en) * | 1994-08-31 | 1995-04-12 | 北京电器研究所 | Full-isolation load switch |
| CN1399290A (en) * | 2001-07-23 | 2003-02-26 | 株式会社日立制作所 | Gas insulated switch |
| CN201163710Y (en) * | 2006-11-30 | 2008-12-10 | Abb技术有限公司 | Medium pressure gas insulation load switch |
| CN101320650A (en) * | 2007-06-08 | 2008-12-10 | 上海华明电力设备制造有限公司 | Vacuum bubble system integral cell structure of vacuum on-load tapping switch |
-
2009
- 2009-01-16 CN CNA2009100012582A patent/CN101504895A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3641295A (en) * | 1969-07-07 | 1972-02-08 | Merlin Gerin | Polyphase circuit interrupter of the fluid blast puffer-type |
| CN1044361A (en) * | 1989-01-17 | 1990-08-01 | 梅兰日兰公司 | Gas-blast circuit breaker |
| CN2194544Y (en) * | 1994-08-31 | 1995-04-12 | 北京电器研究所 | Full-isolation load switch |
| CN1399290A (en) * | 2001-07-23 | 2003-02-26 | 株式会社日立制作所 | Gas insulated switch |
| CN201163710Y (en) * | 2006-11-30 | 2008-12-10 | Abb技术有限公司 | Medium pressure gas insulation load switch |
| CN101320650A (en) * | 2007-06-08 | 2008-12-10 | 上海华明电力设备制造有限公司 | Vacuum bubble system integral cell structure of vacuum on-load tapping switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374615A (en) * | 2015-12-09 | 2016-03-02 | 中国西电电气股份有限公司 | High-voltage high-current phase selection closing apparatus |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: QIAN XUAN Effective date: 20121227 Owner name: BEIJING VEE ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: BEIJING WEIYIAI ELECTRIC CO., LTD. Effective date: 20121227 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121227 Address after: 101300 Beijing city Shunyi District Lin Henan Street No. 9 Applicant after: Beijing Vee Electric Equipment Co., Ltd. Address before: 101300 Beijing city Shunyi District Shuanghe town two or three industrial development base and Lunanren Applicant before: VEE Electric Equipment Co., Ltd. Applicant before: Qian Xuan |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090812 |