CN102629529A - Isolating switch - Google Patents
Isolating switch Download PDFInfo
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- CN102629529A CN102629529A CN2012101185773A CN201210118577A CN102629529A CN 102629529 A CN102629529 A CN 102629529A CN 2012101185773 A CN2012101185773 A CN 2012101185773A CN 201210118577 A CN201210118577 A CN 201210118577A CN 102629529 A CN102629529 A CN 102629529A
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- fixed contact
- contact
- isolating switch
- hole
- moving contact
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Abstract
The invention discloses an isolating switch. The insolating switch comprises a fixed contact and a moving contact, wherein the fixed contact is a hollow cylinder with an opening at one end, a hole which penetrates into an inner cavity of the fixed contact is arranged on the side wall at one end which is near the opening, and the fixed contact is coated with a fixing sealing epoxy resin layer; and the inner cavity of the fixed contact and an inner cavity of the moving contact are matched with each other and are compatible in a sliding mode in the inner cavity of the fixed contact, the moving contact is provided with a guide portion, a recessed portion and a contact portion in a length direction, the moving contact is electrically connected with the fixed contact through a watchband contact finger and a tooth-shaped transmission assembly is arranged between the recessed portion and the hole. The isolating switch uses the fixing sealing epoxy resin layer to effectively solve the problem of unevenness of electric field distribution, and the safety performance of the isolating switch is improved; and simultaneously, the operation process is simplified and the electric isolation efficiency is improved through direct-acting control of the tooth-shaped transmission assembly.
Description
Technical field
The present invention relates to a kind of high-pressure air circuit breaker, relate in particular to the isolating switch of a kind of Direct Action Type conducting/shutoff.
Background technology
Isolating switch is a kind of mechanical switching device that the electrical isolation fracture can requirement according to the rules in the separating brake position be provided.So-called electrical isolation, making does not exactly have contacting directly on electric between two circuit.That is be mutually insulated between two circuit.Because aging circuit or gas leakage when causing built-in electrical insulation to destroy, the isolation fracture that is provided by isolating switch must guarantee that this fracture is not breakdown and produce discharge in air when Switch main body.As shown in Figure 1, be the structural representation of existing a kind of isolating switch of using always.This isolating switch is used normally in 35kV and following electric pressure; Three-phase integrated dress; (vertically) revolution about the employing; With GN series is main representative, and last its structure of figure GN2 is made up of pedestal, moving contact 1, fixed contact 7, insulation column 6, link insulator 2, rotating tension bar 5 and rotating shaft bar 4.Wherein pedestal is used to connect, assemble many elements of switch, makes it to fix with the high pressure cabinet.Dynamic and static contact is electric water diversion part.Moving contact is modulation disconnecting link formula, and combined floodgate is clipped in fixed contact in the middle of two disconnecting links.When big electric current passes through, produce the annex electric power between two disconnecting links, make it pressure increase between the dynamic/static contact, thereby improve isolating switch dynamic and thermal effect performance, lean on length of spring compressed realization pressure between blade.Insulation column and link insulator are used for the corresponding attaching of every mutually dynamic and static contact, play the insulation against ground supporting role.Moving contact vertically-acting up and down carries out gyration to accomplish divide-shut brake by rotating tension bar, and rotation axis carries out on/off switch with the three-phase moving contact pull bar.
But the metallic conductor that this kind of tradition isolating switch is generally taked to expose is fixed on the insulation supporting seat, causes field intensity inhomogeneous easily, destroys the minor insulation performance; Moreover adopt the on/off switch mode of rotating mostly, cause corresponding operating mechanism very complicated.
Summary of the invention
Defective in view of above-mentioned prior art exists the objective of the invention is to propose a kind of isolating switch, solves the problem of non-uniform electric, poor stability, simplifies the operation simultaneously.
The object of the invention; A kind of isolating switch; Constitute by fixed contact and moving contact; To be achieved through following technical characterictic: said fixed contact is the uncovered hollow cylinder of an end tool, be provided with a hole that penetrates into the fixed contact inner chamber at the sidewall of a nearly uncovered end, and said fixed contact outer surface is provided with the solid seal of epoxy resin; Said moving contact and fixed contact inner chamber mate and in the fixed contact inner chamber, slide compatible; Moving contact has guide part, depressed part and the contact site that length direction is laid; Said moving contact is provided with the profile of tooth transmission component through watchband fingertip and fixed contact electric connection between wherein said depressed part and the hole.
Further, said profile of tooth transmission component is the rack and pinion of phase interlock, and said tooth bar one is located at the depressed part inboard, and said gear is located among the hole; Chain and sprocket wheel that perhaps said profile of tooth transmission component is the phase interlock, said chain one is located at the depressed part inboard, and said sprocket wheel is located among the hole.
Further, the described hole outside is provided with grading shield.
Further, said guide part is provided with the guide collar that circumferentially contacts entirely with the fixed contact inner chamber.
The application implementation of isolating switch of the present invention, its outstanding effect is: the solid seal of employing epoxy resin efficiently solves the problem of non-uniform electric, has improved the security performance of switch; Through the Direct Action Type control of profile of tooth transmission component, also simplify operating process simultaneously, improved electrical isolation efficient.
Following constipation closes the embodiment accompanying drawing, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the structural representation of a kind of isolating switch (GN2-10 series) of prior art.
Fig. 2 is the preferred embodiment structure cross-sectional schematic of a kind of isolating switch of the present invention.
Embodiment
As shown in Figure 2, be the structure cross-sectional schematic of isolating switch one preferred embodiment of the present invention.This isolating switch mainly is made up of fixed contact 83 and moving contact 84.Visible from illustrating, this fixed contact 83 is the hollow cylinder of an end tool uncovered 831, be provided with a hole 832 that penetrates into the fixed contact inner chamber at the sidewall of nearly uncovered 831 1 ends, and these fixed contact 83 outer surfaces is provided with the solid seal 82 of epoxy resin; In addition, be provided with watchband fingertip 85 in the nearly uncovered inboard of fixed contact.
This moving contact 84 again, it is the bar block structure with fixed contact inner chamber coupling, and it is compatible in the fixed contact inner chamber, to slide, moving contact is through watchband fingertip and fixed contact electric connection.From length direction, this moving contact can be divided into three sections in form, is respectively guide part, depressed part and contact site.Wherein this guide part is provided with the guide collar 86 that circumferentially contacts entirely with the fixed contact inner chamber, to guarantee the slip rectipetaly of moving contact; In addition, the major function of illustrated this depressed part is to cooperate one group of profile of tooth transmission component of assembling with the hole of fixed contact.Can realize driving moving contact displacement in the fixed contact inner chamber with this through this assembly of external control.
Visible from embodiment shown in Figure 2; Tooth bar 87 and gear 88 that this profile of tooth transmission component is the phase interlock; This tooth bar 87 is generally one and connects and be located at depressed part inboard (what adopt in the present embodiment is to be spirally connected fixing from the depressed part opposite side), and gear 88 then is arranged among the hole 832.Only need extraneous driven wheel to rotate thus, can drive tooth bar and moving contact and slide along the fixed contact inner chamber.In this process, guide collar 86 has played guide effect preferably, and moving contact is slided steadily.
In addition, this profile of tooth transmission component can also be chain and sprocket wheel, and it is provided with structure and is located at the depressed part inboard for the chain one, and sprocket wheel is located among the hole, and is similar with aforementioned tooth bar, gear.For further improving the design, strengthen the interlock stability of profile of tooth transmission component, isolating switch of the present invention can also be provided with grading shield 81 in fixed contact hole 832 outsides.
Realize from isolating switch manufacturing approach of the present invention and function: static contact isolation switch is enclosed in its surface through the APG casting process with epoxy resin admittedly, guarantees that the whole Electric Field Distribution in isolating switch surface is even.Gu envelope is filled to the isolating switch moving contact with tooth bar through fixed screw after accomplishing, then successively with the isolating switch moving contact, gear, grading shield is assembled to static contact isolation switch.External agency drives the tooth bar action through transmitting gear, and the action of tooth bar drives the action of isolating switch moving contact simultaneously, accomplishes conducting or shutoff.
To sum up visible, the solid seal of isolating switch employing epoxy resin of the present invention efficiently solves the problem of non-uniform electric, has improved the security performance of switch; Through the Direct Action Type control of profile of tooth transmission component, also simplify operating process simultaneously, improved electrical isolation efficient.
Claims (5)
1. isolating switch; Constitute by fixed contact and moving contact; It is characterized in that: said fixed contact is the uncovered hollow cylinder of an end tool, be provided with a hole that penetrates into the fixed contact inner chamber at the sidewall of a nearly uncovered end, and said fixed contact outer surface is provided with the solid seal of epoxy resin; Said moving contact and fixed contact inner chamber mate and in the fixed contact inner chamber, slide compatible; Moving contact has guide part, depressed part and the contact site that length direction is laid; Said moving contact is provided with the profile of tooth transmission component through watchband fingertip and fixed contact electric connection between wherein said depressed part and the hole.
2. a kind of isolating switch according to claim 1 is characterized in that: said profile of tooth transmission component is the rack and pinion of phase interlock, and said tooth bar one is located at the depressed part inboard, and said gear is located among the hole.
3. a kind of isolating switch according to claim 1 is characterized in that: chain and sprocket wheel that said profile of tooth transmission component is the phase interlock, and said chain one is located at the depressed part inboard, and said sprocket wheel is located among the hole.
4. according to claim 2 or 3 described a kind of isolating switches, it is characterized in that: the described hole outside is provided with grading shield.
5. a kind of isolating switch according to claim 1 is characterized in that: said guide part is provided with the guide collar that circumferentially contacts entirely with the fixed contact inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101185773A CN102629529A (en) | 2012-04-23 | 2012-04-23 | Isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101185773A CN102629529A (en) | 2012-04-23 | 2012-04-23 | Isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102629529A true CN102629529A (en) | 2012-08-08 |
Family
ID=46587770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101185773A Pending CN102629529A (en) | 2012-04-23 | 2012-04-23 | Isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102629529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017900A (en) * | 2020-08-31 | 2020-12-01 | 国家电网有限公司 | Isolation switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2946929A1 (en) * | 1979-11-21 | 1981-05-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Pneumatic gas blow-out switch - has scissor linkage between moving contact and piston-cylinder unit |
| JP2002044815A (en) * | 2000-07-26 | 2002-02-08 | Toshiba Corp | Gas-insulated switchgear |
| CN201237998Y (en) * | 2008-06-30 | 2009-05-13 | 沈阳昊诚电力科技有限公司 | Epoxy-pouring full-insulation solid isolation switch |
| CN201853639U (en) * | 2010-01-18 | 2011-06-01 | Abb技术有限公司 | Metal-packaged gas-insulated combined circuit breaking and grounding switch |
| CN202042409U (en) * | 2010-12-17 | 2011-11-16 | 江苏大全高压开关有限公司 | Movable contact component for high-voltage three-working-position isolating switch |
| CN202940168U (en) * | 2012-04-23 | 2013-05-15 | 苏州朗格电气有限公司 | Isolating switch |
-
2012
- 2012-04-23 CN CN2012101185773A patent/CN102629529A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2946929A1 (en) * | 1979-11-21 | 1981-05-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Pneumatic gas blow-out switch - has scissor linkage between moving contact and piston-cylinder unit |
| JP2002044815A (en) * | 2000-07-26 | 2002-02-08 | Toshiba Corp | Gas-insulated switchgear |
| CN201237998Y (en) * | 2008-06-30 | 2009-05-13 | 沈阳昊诚电力科技有限公司 | Epoxy-pouring full-insulation solid isolation switch |
| CN201853639U (en) * | 2010-01-18 | 2011-06-01 | Abb技术有限公司 | Metal-packaged gas-insulated combined circuit breaking and grounding switch |
| CN202042409U (en) * | 2010-12-17 | 2011-11-16 | 江苏大全高压开关有限公司 | Movable contact component for high-voltage three-working-position isolating switch |
| CN202940168U (en) * | 2012-04-23 | 2013-05-15 | 苏州朗格电气有限公司 | Isolating switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017900A (en) * | 2020-08-31 | 2020-12-01 | 国家电网有限公司 | Isolation switch |
| CN112017900B (en) * | 2020-08-31 | 2022-08-26 | 国家电网有限公司 | Isolation switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |