CN203118847U - Load switch - Google Patents
Load switch Download PDFInfo
- Publication number
- CN203118847U CN203118847U CN 201320146419 CN201320146419U CN203118847U CN 203118847 U CN203118847 U CN 203118847U CN 201320146419 CN201320146419 CN 201320146419 CN 201320146419 U CN201320146419 U CN 201320146419U CN 203118847 U CN203118847 U CN 203118847U
- Authority
- CN
- China
- Prior art keywords
- electrode assembly
- movable electrode
- fixed
- component
- grounding electrode
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a switch device, particularly relates to a load switch, which comprises a fixed plate (1), a modular framework (2), a movable electrode main shaft (4), a grounding electrode main shaft (26), a contactor sleeve (9), a movable electrode component (10), a movable electrode guide rod (8), a grounding electrode sleeve (25), a grounding electrode component (14), a fixed terminal component (21) and a grounding electrode guide rod (13). The load switch is better in stability, strong in arc extinguishing ability, long in service life, simple to assemble and high in precision, is reliable, saves trouble and effort, and can effectively complete mass production.
Description
Technical field
The utility model relates to a kind of switchgear, relates in particular to a kind of on-load switch.
Background technology
Gas-insulated switchgear has been widely used in height, middle pressure transmission and distribution network, can effectively must carry out the distribution of electric energy and the protection of circuit.Meeting switch is one of main element of gas-insulated switchgear, be installed in the gas-insulated switchgear with totally enclosed type, be used for closing and close short circuit current and segmentation recombination current, adopt arc extinguishing structure, vacuum type such as metal deion grid formula, air pressing type structure and vacuum type structure usually; Wherein the air pressing type principle produces high velocity air in order to the principle of cooling and extinguish arcs by Compressed Gas, and this structure arc extinguishing ability is strong, and especially middle and high pressure field has obtained more general application.
Mainly there is following shortcoming in existing pressure-operated load switch: plenum chamber is located in the contact tube, and contact tube is because of the insulating sleeve spatial limitation, and size is thick inadequately, so the insufficient pressure of plenum chamber, and the arc extinguishing ability is restricted; All need arcing contact be set in the dynamic and static contact and conductive contact makes complex structure, product cost is higher; The on-load switch arc control device are enclosed in the insulating sleeve, cut-off the back insulating gas and can't obtain upgrading, and useful life is extremely limited; Because dynamic/static contact is when being in contact with one another, can high-voltage arc and produce the extremely strong ability that impacts, and produce high temperature, cause dynamic/static contact place well damage, cause whole on-load switch seriously to shorten useful life; Generally all be independent production each other, and be assembling separately on equipment, cause assembling comparatively loaded down with trivial details, occur rigging error easily, under the efficiency of assembling, can't effectively form large-scale production.
The utility model content
The purpose of this utility model is to provide a kind of on-load switch, and it is limited in one's ability to have solved present on-load switch arc extinguishing, complex structure, and useful life is limited, and assembly process is loaded down with trivial details, and the equipment precision is not high, the problem that wastes time and energy.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of on-load switch, comprise fixed head, modular frame, movable electrode main shaft, grounding electrode main shaft, contact sleeve, movable electrode assembly, movable electrode guide post, ground electrode sleeve, grounding electrode assembly, fixed end sub-component and grounding electrode guide post
Wherein said modular frame is mainly joined end to end by an egative film and three lateral plates and constitutes, described fixed head is installed in the top of modular frame, described movable electrode main shaft runs through on relative first lateral plate, second lateral plate of modular frame with the grounding electrode main shaft, described contact sleeve is fixed on the fixed head, described ground electrode sleeve is fixed on the pleurella, the fixed end sub-component is fixed on the egative film, described movable electrode assembly is sleeved in the contact sleeve and by the movable electrode insulation arm by the movable electrode guide post and is connected on the movable electrode main shaft, movable electrode assembly bottom is suitable with contact jaw position, sub-component top, fixed end, described grounding electrode assembly is installed in the ground electrode sleeve and by the grounding electrode insulation arm by the grounding electrode guide post and is connected on the grounding electrode main shaft, and the bottom of grounding electrode assembly and sub-component sidepiece contact jaw position, fixed end are suitable; On the described movable electrode assembly and the contacted end face of fixed end sub-component be Mume flower contact, grounding electrode assembly and the contacted end face of fixed end sub-component are Mume flower contact; Described contact sleeve and movable electrode assembly form plenum chamber, and sulphur hexafluoride insulating gas in the described plenum chamber is provided with the gas channeling concave groove that is communicated with plenum chamber in the described movable electrode assembly; The contact-making surface of described fixed end sub-component and movable electrode assembly, and be equipped with the copper-tungsten layer on the contact-making surface of described fixed end sub-component and grounding electrode assembly.
Further technical scheme is, the direction of motion of described movable electrode assembly is vertical mutually with the contacted end face of fixed end sub-component with the movable electrode assembly, and the direction of motion of described grounding electrode assembly is vertical mutually with the contacted end face of fixed end sub-component with the grounding electrode assembly.
Further technical scheme is, described movable electrode main shaft and grounding electrode main shaft fix with elastic washer and first lateral plate, second lateral plate by main shaft copper sheathing and axle, and described ground electrode sleeve is fixed on the pleurella by the short circuit copper bar.
Further technical scheme is, described contact sleeve is fixed on the fixed head by sleeve packing ring, packing ring, spring washer, cup head hexagon socket head cap screw with the inlet wire copper bus-bar.
Further technical scheme is, described contact sleeve is the insulating material moulding by casting, and the fixed end sub-component is to be fixed on egative film by the sub-fixture in fixed end.
The beneficial effect that adopts technique scheme to produce is:
1, the Mume flower contact formula that the movable electrode assembly of this on-load switch and grounding electrode assembly adopt, make when closing a floodgate, the pressure direction between dynamic/static contact is vertical with the direction of motion, and the spring when contact is connected is little, the back conductive contact that closes a floodgate connects more reliable, Electric Field Distribution is more even than any cutter formula structure, and short circuit current by the time because the sense of current is consistent between fingertip and between fingertip and the conducting rod, the electric power trend is pressed to conducting rod with fingertip, and dynamic stability is better.
2, the movable electrode assembled of this on-load switch is in insulating sleeve, after being housed in the insulating sleeve, guide post and movable electrode assembly also in sleeve, form a plenum chamber, in sub-switching operation, movable electrode moves upward fast, compress the sulphur hexafluoride insulating gas in the air pressing type, and blow to electric arc fast by the special gas channeling concave groove in lower end; Tolerance abundance in this structure plenum chamber, the air-flow spouting velocity is fast, and directivity is accurate, and connecting-disconnecting function improves greatly.
3; all select the copper-tungsten material on the contact tip for use; because plenum chamber is located in the contact sleeve of insulating material; this structure can be blown out electric arc by the gas in the plenum chamber effectively fast; avoid short trouble; fixed end is in the fresh sulphur hexafluoride insulating gas always, effectively prolongs useful life and the protective capability of on-load switch.
4; modular frame; make whole on-load switch become a standalone module on the switchgear main body; after can in advance whole on-load switch being assembled separately; again it is assemblied on the equipment; the method of assembling in main body than traditional mode is both simple aspect assembling and check, reliably saves trouble and laborsaving, can carry out large-scale production effectively.
Description of drawings
Fig. 1 is the structural perspective of a kind of on-load switch of the utility model.
Fig. 2 is the structural front view of a kind of on-load switch of the utility model.
Fig. 3 is the A-A cutaway view of Fig. 2.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1, Fig. 2 and Fig. 3 show an embodiment of a kind of on-load switch of the utility model: a kind of on-load switch, comprise fixed head 1, modular frame 2, movable electrode main shaft 4, grounding electrode main shaft 26, contact sleeve 9, movable electrode assembly 10, movable electrode guide post 8, ground electrode sleeve 25, grounding electrode assembly 14, fixed end sub-component 21 and grounding electrode guide post 13
Wherein said modular frame 2 is mainly joined end to end by an egative film and three lateral plates and constitutes, described fixed head 1 is installed in the top of modular frame 2, described movable electrode main shaft 4 and grounding electrode main shaft 26 run through on relative first lateral plate, second lateral plate of modular frame 2, described contact sleeve 9 is fixed on the fixed head 1, described ground electrode sleeve 25 is fixed on the pleurella, fixed end sub-component 21 is fixed on the egative film, described movable electrode assembly 10 is sleeved in the contact sleeve 9 and by movable electrode insulation arm 24 by movable electrode guide post 8 and is connected on the movable electrode main shaft 4, movable electrode assembly 10 bottoms and contact jaw position, fixed end sub-component 21 top are suitable, described grounding electrode assembly 14 is installed in the ground electrode sleeve 25 and by grounding electrode insulation arm 11 by grounding electrode guide post 13 and is connected on the grounding electrode main shaft 26, and the bottom of grounding electrode assembly 14 and fixed end sub-component 21 sidepiece contact jaw positions are suitable; On the described movable electrode assembly 10 and fixed end sub-component 21 contacted end faces be Mume flower contact, grounding electrode assembly 14 is Mume flower contact with fixed end sub-component 21 contacted end faces; Described contact sleeve 9 and movable electrode assembly 10 form plenum chamber 23, and sulphur hexafluoride insulating gas in the described plenum chamber 23 is provided with the gas channeling concave groove 22 that is communicated with plenum chamber 23 in the described movable electrode assembly 10; The contact-making surface of described fixed end sub-component 21 and movable electrode assembly 10, and be equipped with the copper-tungsten layer on the contact-making surface of described fixed end sub-component 21 and grounding electrode assembly 14.
Originally meeting switch integral body is a modular organization, all are assemblied on the modular frame 2, the corresponding interface by enclosed gas-insulated switchgear is installed in the airtight gas tank again, and convenience, reliability, the batch process efficiency of assembling all are that other like products are incomparable; Plenum chamber 23 is loaded in the fully closed sulfur hexafluoride gas-insulating switchgear, insulation property and arc extinguishing ability by the sulfur hexafluoride gas excellence, realize the normal combined floodgate sub-switching operation of on-load switch, large-minded in the plenum chamber 23, the air-flow spouting velocity of compression is exceedingly fast, the gas channeling concave groove 22 of unique design makes the arc extinguishing ability namely accurate again soon, significantly improves connecting-disconnecting function and useful life; The end face of the end face of movable electrode assembly 10 and grounding electrode assembly 14 is Mume flower contact formula structure, contacts with fixed end sub-component 21 fully effectively when closing a floodgate, and contact-making surface is even, makes Electric Field Distribution also more even.
Wherein the movable electrode insulation arm 24 of on-load switch and grounding electrode insulation arm 11 are premium insulation spare, movable electrode main shaft 4 and grounding electrode main shaft 26 are metalwork, closing other insulating parts of the alternate nothing of branch operating system, avoid alternate bigger Leakage Current, improved the stable and reliability of high load capacity switch operation.
Another embodiment according to a kind of on-load switch of the utility model, the direction of motion of described movable electrode assembly 10 is vertical mutually with fixed end sub-component 21 contacted end faces with movable electrode assembly 10, the direction of motion of described grounding electrode assembly 14 is vertical mutually with fixed end sub-component 21 contacted end faces with grounding electrode assembly 14, such effect is can remain contact-making surface and be in contact with one another the time, all be that face contacts simultaneously with face, rather than point and point or point and face, guaranteed the even of electric field.
Another preferred embodiment according to a kind of on-load switch of the utility model, described movable electrode main shaft 4 and grounding electrode main shaft 26 fix with elastic washer 5 and first lateral plate, second lateral plate by main shaft copper sheathing 3 and axle, wherein main shaft copper sheathing 3 and axle mainly play insulation and fastening effect with elastic washer 5, and described ground electrode sleeve 25 is fixed on the pleurella by short circuit copper bar 12.
According to another preferred embodiment of a kind of on-load switch of the utility model, described contact sleeve 9 is fixed on the fixed head 1 by sleeve packing ring 18, packing ring 17, spring washer 16, cup head hexagon socket head cap screw 15 with inlet wire copper bus-bar 6.
According to another preferred embodiment of a kind of on-load switch of the utility model, described contact sleeve 9 is the insulating material moulding by casting, and fixed end sub-component 21 is to be fixed on egative film by the sub-fixture 20 in fixed end.
Here it is worthy of note: decide other metallic conductors of use or the varying sized size of contact terminal assembly 21, grounding electrode assembly 14, movable electrode assembly 10, still can have and be not higher than electric property of the present invention; As cancel grounding electrode assembly 14, grounding electrode guide post 13, short circuit copper bar 12, grounding electrode insulation arm 11; namely become the on-load switch that only possesses the on/off switch function and cancel grounding function, equally just use therefore the present invention's protection to comprise in the distribution system according to user's request and be not limited to technical characterictic of the present invention.
Although be described with reference to the utility model of a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and execution mode will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be tangible.
Claims (5)
1. on-load switch, it is characterized in that: comprise fixed head (1), modular frame (2), movable electrode main shaft (4), grounding electrode main shaft (26), contact sleeve (9), movable electrode assembly (10), movable electrode guide post (8), ground electrode sleeve (25), grounding electrode assembly (14), fixed end sub-component (21) and grounding electrode guide post (13), wherein said modular frame (2) is mainly joined end to end by an egative film and three lateral plates and constitutes, described fixed head (1) is installed in the top of modular frame (2), described movable electrode main shaft (4) runs through on relative first lateral plate, second lateral plate of modular frame (2) with grounding electrode main shaft (26), described contact sleeve (9) is fixed on the fixed head (1), described ground electrode sleeve (25) is fixed on the pleurella, fixed end sub-component (21) is fixed on the egative film, described movable electrode assembly (10) is sleeved in the contact sleeve (9) by movable electrode guide post (8) and is connected on the movable electrode main shaft (4) by movable electrode insulation arm (24), movable electrode assembly (10) bottom is suitable with contact jaw position, fixed end sub-component (21) top, described grounding electrode assembly (14) is installed in the ground electrode sleeve (25) by grounding electrode guide post (13) and is connected on the grounding electrode main shaft (26) by grounding electrode insulation arm (11), and the bottom of grounding electrode assembly (14) and fixed end sub-component (21) sidepiece contact jaw position are suitable; Described movable electrode assembly (10) is gone up and the contacted end face of fixed end sub-component (21) is Mume flower contact, and grounding electrode assembly (14) is Mume flower contact with the contacted end face of fixed end sub-component (21); Described contact sleeve (9) and movable electrode assembly (10) form plenum chamber (23), and the interior sulphur hexafluoride insulating gas of described plenum chamber (23) is provided with the gas channeling concave groove (22) that is communicated with plenum chamber (23) in the described movable electrode assembly (10); The contact-making surface of described fixed end sub-component (21) and movable electrode assembly (10), and be equipped with the copper-tungsten layer on the contact-making surface of described fixed end sub-component (21) and grounding electrode assembly (14).
2. a kind of on-load switch according to claim 1, it is characterized in that: the direction of motion of described movable electrode assembly (10) is vertical mutually with the contacted end face of fixed end sub-component (21) with movable electrode assembly (10), and the direction of motion of described grounding electrode assembly (14) is vertical mutually with the contacted end face of fixed end sub-component (21) with grounding electrode assembly (14).
3. a kind of on-load switch according to claim 1, it is characterized in that: described movable electrode main shaft (4) and grounding electrode main shaft (26) fix with elastic washer (5) and first lateral plate, second lateral plate by main shaft copper sheathing (3) and axle, and described ground electrode sleeve (25) is fixed on the pleurella by short circuit copper bar (12).
4. a kind of on-load switch according to claim 1 is characterized in that: described contact sleeve (9) is fixed on the fixed head (1) by sleeve packing ring (18), packing ring (17), spring washer (16), cup head hexagon socket head cap screw (15) with inlet wire copper bus-bar (6).
5. a kind of on-load switch according to claim 1 is characterized in that: described contact sleeve (9) is the insulating material moulding by casting, and fixed end sub-component (21) is to be fixed on egative film by the sub-fixture in fixed end (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320146419 CN203118847U (en) | 2013-03-27 | 2013-03-27 | Load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320146419 CN203118847U (en) | 2013-03-27 | 2013-03-27 | Load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118847U true CN203118847U (en) | 2013-08-07 |
Family
ID=48899169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320146419 Expired - Fee Related CN203118847U (en) | 2013-03-27 | 2013-03-27 | Load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078269A (en) * | 2013-03-27 | 2014-10-01 | 上海中亚电气有限公司 | Load switch |
-
2013
- 2013-03-27 CN CN 201320146419 patent/CN203118847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078269A (en) * | 2013-03-27 | 2014-10-01 | 上海中亚电气有限公司 | Load switch |
| CN104078269B (en) * | 2013-03-27 | 2017-12-05 | 上海中亚电气有限公司 | A kind of on-load switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103377849B (en) | Three-phase combined type isolation earthing switch | |
| CN102760607B (en) | Pressure-operated load switch for gas-insulated ring main unit | |
| CN104810222A (en) | Arc extinguish chamber with quick arc extinguishing function and miniaturized circuit breaker with arc extinguish chamber | |
| CN201877351U (en) | Vacuum switching tube | |
| CN202839451U (en) | Vacuum arc extinguish chamber | |
| CN203118847U (en) | Load switch | |
| CN202268608U (en) | Solid seal full-vacuum switching device | |
| CN208873691U (en) | A kind of structure of contact terminal | |
| CN104143451A (en) | High-speed earthing switch and earthing switch assembly unit with same | |
| CN203553024U (en) | Three-position isolation switch embedded pole | |
| CN102360986A (en) | Sealed full vacuum switching device | |
| CN204858383U (en) | Circuit breaker is kept apart to complete three stations of cladding formula | |
| CN104078269A (en) | Load switch | |
| CN203118842U (en) | Load switch quick in assembling | |
| CN104917095B (en) | The full station isolation circuit breakers of clad type three | |
| CN204045481U (en) | A kind of 110kV isolating switch | |
| CN203118856U (en) | Load switch capable of quickly extinguishing arcs | |
| CN204189695U (en) | Isolating switch fuse group | |
| CN203118846U (en) | Load switch with evener electric field distribution between contactors | |
| CN204361550U (en) | A kind of solid all-insulated switch | |
| CN203674064U (en) | Split type solid-sealed post terminal structure | |
| CN202839450U (en) | Vacuum arc extinguishing chamber | |
| CN202712031U (en) | Moving contact structure of 12kV three-position SF6 load switch | |
| CN201629513U (en) | Centered withdraw type alternating current high-voltage switchgear for combination of high-voltage vacuum contactor and fuse | |
| CN201877356U (en) | Arc extinguisher of sulfur hexafluoride breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140327 |