CN102426964B - Totally-enclosed type outdoor high-voltage isolation switch - Google Patents
Totally-enclosed type outdoor high-voltage isolation switch Download PDFInfo
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- CN102426964B CN102426964B CN201110253301.1A CN201110253301A CN102426964B CN 102426964 B CN102426964 B CN 102426964B CN 201110253301 A CN201110253301 A CN 201110253301A CN 102426964 B CN102426964 B CN 102426964B
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- disconnecting link
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- retaining mechanism
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Abstract
The invention discloses a totally-enclosed type outdoor high-voltage isolation switch which comprises two wiring terminals, two contacts, a disconnecting link and a locking mechanism, wherein the two wiring terminals are respectively and fixedly connected with upper end faces of two insulating supports, two contacts are respectively and fixedly connected to two insulating supports and are conducted with the corresponding wiring terminals, and the disconnecting link is connected with two contacts; the locking mechanism is made of a high-strength polyimide material and the insulating supports are made of alicyclic resin materials with an atmospheric ageing resistance; a fixed end of the disconnecting link is rotatably connected with one contact and throughout contacted with the contact, and a movable end of the disconnecting link is contacted with the other contact and is locked or unlocked through the locking mechanism; and all of the two contacts and the disconnecting link are pre-buried into insulating resin materials. According to the invention, all charged bodies are totally enclosed into outdoor type insulating materials, so that the actual total enclosing is realized and short-circuit faults are effectively avoided.
Description
Technical field
The present invention relates to high-voltage electrical apparatus field, relate in particular to a kind of totally enclosed type outdoor high-voltage isolating switch.
Background technology
As the purposes of isolation or separated time, outdoor high-voltage isolating switch has a large capacity and a wide range, and is one of product of use amount maximum in the middle of China's distribution.
Tradition isolating switch, complex structure or reliability low.The isolating switch particularly moving out of doors, because the live parts such as its disconnecting link and retaining mechanism are exposed in atmosphere, ice and snow rainwater, the interference of strong wind and birds very easily causes short circuit grounding.Though its value is not high, the height of product reliability seriously affects mains supply safety.In recent years, China adopts expensive imported product in large quantities, although improved to a certain extent the reliability of product, on switch, the whole exposed problems of all electrified bodies are not resolved, and caused short circuit accident still happens occasionally thus.Even if adopted insulating sleeve, can not tackle the problem at its root.
The overhead transmission line of China city, town electrical network has been used insulated conductor in large area, and isolating switch becomes a weak spot.So, study a kind of totally enclosed type outdoor high-voltage isolating switch, for comprehensive power supply reliability that improves China's power distribution network, tool is of great significance.
Summary of the invention
The object of the invention is to overcome the defect of prior art and a kind of totally enclosed type outdoor high-voltage isolating switch is provided, the present invention is completely enclosed within all electrified bodies among outdoor type insulating material, has accomplished truly totally-enclosed.
The technical scheme that realizes above-mentioned purpose is:
A kind of totally enclosed type outdoor high-voltage isolating switch, comprise two binding posts being fixed in respectively on two insulation column upper surfaces, be respectively fixed in described two insulation columns top and with two contacts of corresponding wiring terminal conducting, the disconnecting link that is connected described two contacts and a retaining mechanism, wherein:
Described retaining mechanism adopts polyimide foam insulation;
Described disconnecting link, its stiff end is rotationally connected with a described contact and touches mutually all the time; Its movable end and described another contact touch and by described retaining mechanism locking or unclamp;
Described two contacts and described disconnecting link are all embedded in dielectric resin material in advance.
Above-mentioned totally enclosed type outdoor high-voltage isolating switch, wherein, described retaining mechanism one end is fixed in a described contact, and the other end is buckled in the movable end of described disconnecting link.
Above-mentioned totally enclosed type outdoor high-voltage isolating switch, wherein, the top of described disconnecting link movable end is equipped with a draw ring, and this draw ring adopts polyimide foam insulation and can rotate, and it drives a push rod while rotating, and this push rod can promote described retaining mechanism and make its dropout.
Above-mentioned totally enclosed type outdoor high-voltage isolating switch, wherein, the stiff end of described disconnecting link is rotationally connected by a swivel becket and a described contact, and this swivel becket adopts polyimide foam insulation.
Above-mentioned totally enclosed type outdoor high-voltage isolating switch, wherein, is coated with a resilient coating between described disconnecting link outside and dielectric resin material.
The invention has the beneficial effects as follows:
A) the present invention is completely enclosed within all electrified bodies (comprising the contact of disconnecting link and both sides etc.) among outdoor type insulating material.
B) the described retaining mechanism in the present invention adopts that mechanical strength is high, good insulation preformance, has the polyimide material of good ageing resistance, can self-locking.
When c) the described disconnecting link in the present invention is closed, without bare metal dew point, good seal performance; During described disconnecting link separating brake, there is obvious fracture, played the effect of electrical isolation.
D) all electrified body metalworks of the present invention have been accomplished truly totally-enclosed, effectively avoided the generation of accidental short circuit fault, thereby considered more the reliability of distribution, the lifting of the desired Electrical Safety of electric power system has been had to good promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of totally enclosed type outdoor high-voltage isolating switch of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, a kind of totally enclosed type outdoor high-voltage isolating switch of the present invention, comprise two binding posts 1 being fixed in respectively on two insulation column 5 lateral surfaces, be respectively fixed in two insulation column 5 tops and with two contacts (41,42) of corresponding wiring terminal 1 conducting, the disconnecting link 3 that is connected two contacts (41,42) and a retaining mechanism 2, wherein:
The stiff end of disconnecting link 3 is rotationally connected with a contact 41 and touches mutually all the time, and the movable end of disconnecting link 3 and another contact 42 touch and by retaining mechanism 2 lockings or unclamp;
Two contacts (41,42) and disconnecting link 3 are all embedded in dielectric resin material in advance, and coated resilient coating between disconnecting link 3 outsides and dielectric resin material, to eliminate the stress between the two;
Retaining mechanism 2 adopts High Strength Polyimide insulating material, and in the dielectric resin material of nuzzling in advance, through hot setting moulding, it has certain restorative, thereby has auto-lock function; One end of retaining mechanism 2 is fixed in the dielectric resin material of contact 42 outsourcings, the other end extends a projection, this protruding top is radian, extended groove snapping in the dielectric resin material of bottom and disconnecting link 3 movable end outsourcings, and the bottom of this groove is also radian.
The top of disconnecting link 3 movable ends is equipped with a draw ring 31, and this draw ring 31 adopts polyimide foam insulation and can rotate; During draw ring 31 initial condition, retaining mechanism 2 lockings, the movable end of disconnecting link 3 touches mutually with contact 42, and now disconnecting link 3 is in "on" position; Draw ring 31 drives a push rod 33 while rotating, this push rod 33 promotes retaining mechanism 2, and retaining mechanism 2 is unclamped, and now disconnecting link 3 is in gate-dividing state.
The stiff end of disconnecting link 3 is rotationally connected with contact 41 by a swivel becket 32, and this swivel becket 32 adopts polyimide foam insulation.
Operation principle of the present invention: the electric wire of both sides is crimped on respectively insulation column 5 separately, the end of a thread is accessed to aerial binding post 1 inside, thereby with contact (41,42) conducting respectively, make not have exposed electrified body, draw ring 31 is in initial condition, retaining mechanism 2 lockings, disconnecting link 3 is in "on" position; Now by draw ring 31 to counter-rotation, it drives push rod 33 to promote retaining mechanisms 2, and retaining mechanism 2 is unclamped, then upwards pull a little again draw ring 31, disconnecting link 3 is in gate-dividing state, thereby plays the use of doing of electrical isolation, and now retaining mechanism 2 automatically restores to home position.Then, make draw ring 31 again in initial condition, drive push rod 33 to return to reset condition, now the movable end of disconnecting link 3 being pressed down, collides in the disconnecting link 3 outside bottoms of extended groove of movable ends and the top of retaining mechanism 2 extended projections, because the reason of radian separately, thereby disconnecting link 3 movable ends are pressed down smoothly with contact 42 to be touched mutually, retaining mechanism 2 recovers again automatically, realizes automatic locking, and now disconnecting link 3 is again in "on" position.
In sum, the present invention is completely enclosed within all electrified bodies among outdoor type insulating material, accomplished truly totally-enclosed, can effectively avoid the generation of accidental short circuit fault, thereby considered more the reliability of distribution, the lifting of the desired Electrical Safety of electric power system has been had to good promotional value.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (3)
1. a totally enclosed type outdoor high-voltage isolating switch, it is characterized in that, comprise two binding posts being fixed in respectively on two insulation column upper surfaces, be respectively fixed in described two insulation columns top and with two contacts of corresponding wiring terminal conducting, the disconnecting link that is connected described two contacts and a retaining mechanism, wherein:
Described retaining mechanism adopts polyimide foam insulation;
Described disconnecting link, one in its stiff end and described two contacts is rotationally connected and touches mutually all the time; Another in its movable end and described two contacts touches and by described retaining mechanism locking or unclamp;
Described two contacts and described disconnecting link are all embedded in dielectric resin material in advance,
Described retaining mechanism one end is fixed in another in described two contacts, and the other end is buckled in the movable end of described disconnecting link,
The top of described disconnecting link movable end is equipped with a draw ring, and this draw ring adopts polyimide foam insulation and can rotate, and it drives a push rod while rotating, and this push rod can promote described retaining mechanism and make its dropout.
2. totally enclosed type outdoor high-voltage isolating switch according to claim 1, is characterized in that, the stiff end of described disconnecting link is rotationally connected by one in a swivel becket and described two contacts, and this swivel becket adopts polyimide foam insulation.
3. totally enclosed type outdoor high-voltage isolating switch according to claim 1, is characterized in that, between described disconnecting link outside and dielectric resin material, is coated with a resilient coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110253301.1A CN102426964B (en) | 2011-08-30 | 2011-08-30 | Totally-enclosed type outdoor high-voltage isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110253301.1A CN102426964B (en) | 2011-08-30 | 2011-08-30 | Totally-enclosed type outdoor high-voltage isolation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102426964A CN102426964A (en) | 2012-04-25 |
| CN102426964B true CN102426964B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110253301.1A Active CN102426964B (en) | 2011-08-30 | 2011-08-30 | Totally-enclosed type outdoor high-voltage isolation switch |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261515B (en) * | 2015-11-18 | 2017-05-10 | 江苏省如高高压电器有限公司 | Improved isolating switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3553397A (en) * | 1967-04-06 | 1971-01-05 | Bbc Brown Boveri & Cie | Disconnecting device for fully insulated high-voltage electrical switchgear |
| CN101206970A (en) * | 2007-09-30 | 2008-06-25 | 丹东供电设备厂 | Outdoor high-voltage locking isolating switch on pole |
| CN101620947A (en) * | 2008-06-30 | 2010-01-06 | 沈阳昊诚电力科技有限公司 | Epoxy-pouring full-insulation solid isolating switch |
| CN202217613U (en) * | 2011-08-30 | 2012-05-09 | 上海固缘电力科技有限公司 | Totally-enclosed type outdoor high-voltage isolating switch |
-
2011
- 2011-08-30 CN CN201110253301.1A patent/CN102426964B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3553397A (en) * | 1967-04-06 | 1971-01-05 | Bbc Brown Boveri & Cie | Disconnecting device for fully insulated high-voltage electrical switchgear |
| CN101206970A (en) * | 2007-09-30 | 2008-06-25 | 丹东供电设备厂 | Outdoor high-voltage locking isolating switch on pole |
| CN101620947A (en) * | 2008-06-30 | 2010-01-06 | 沈阳昊诚电力科技有限公司 | Epoxy-pouring full-insulation solid isolating switch |
| CN202217613U (en) * | 2011-08-30 | 2012-05-09 | 上海固缘电力科技有限公司 | Totally-enclosed type outdoor high-voltage isolating switch |
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| Publication number | Publication date |
|---|---|
| CN102426964A (en) | 2012-04-25 |
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