CN104078269B - A kind of on-load switch - Google Patents
A kind of on-load switch Download PDFInfo
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- CN104078269B CN104078269B CN201310102390.9A CN201310102390A CN104078269B CN 104078269 B CN104078269 B CN 104078269B CN 201310102390 A CN201310102390 A CN 201310102390A CN 104078269 B CN104078269 B CN 104078269B
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Abstract
The invention discloses a kind of switchgear, more particularly to a kind of on-load switch, including fixed plate（1）, modular frame（2）, movable electrode main shaft（4）, grounding electrode main shaft（26）, contact sleeve（9）, movable electrode component（10）, movable electrode guide rod（8）, ground electrode sleeve（25）, ground electrode unit（14）, fixed end sub-component（21）With grounding electrode guide rod（13）, the present invention, which acts on, is：Stability is better, and arc extinguishing ability is strong, long lifespan, assembles simple precision height, reliably saves trouble and laborsaving, can effectively carry out large-scale production.
Description
Technical field
The present invention relates to a kind of switchgear, more particularly to a kind of on-load switch.
Background technology
Gas-insulated switchgear has been widely used for high, middle pressure transmission and distribution network, can must effectively carry out the distribution of electric energy
With the protection of circuit.Meet switch for one of main element of gas-insulated switchgear, it is exhausted that gas is installed on totally enclosed type
In edge switchgear, for closing short circuit current and segmentation recombination current, generally use metal deionization grating, air pressing type structure
With arc extinguishing structure, the vacuum type such as vacuum type structure；Wherein air pressing type principle, high velocity air is produced by compressed gas to cool down
And extinguish the principle of electric arc, the structure arc extinguishing ability is strong, and especially middle high-pressure field has obtained more universal application.
Existing pressure-operated load switch is primarily present following shortcoming：Plenum chamber is located in contact tube, and contact tube is because of insulation
Sleeve volume limits, and size is not thick enough, therefore the insufficient pressure of plenum chamber, and arc extinguishing ability is restricted；It is both needed in dynamic and static contact
Arcing contact and conductive contact is set to make complicated, product cost is higher；On-load switch arc-chutes are enclosed in insulating sleeve, are opened
Insulating gas of having no progeny can not be updated, and service life is extremely limited；, can high-voltage arc because dynamic/static contact is when contacting with each other
And extremely strong impact ability is produced, and high temperature is produced, cause well damage at dynamic/static contact, cause whole on-load switch to use
Severe life time reduction；Typically independent production, and individually assembled in equipment between each other, cause assembling more numerous
It is trivial, easily there is rigging error, under efficiency of assembling, large-scale production can not be effectively formed.
The content of the invention
It is an object of the invention to provide a kind of on-load switch, it is limited in one's ability to solve current on-load switch arc extinguishing, structure
Complexity, service life is limited, and assembly process is cumbersome, and equipment precision is not high, the problem of wasting time and energy.
To solve the above problems, the technical solution used in the present invention is：
A kind of on-load switch, including fixed plate, modular frame, movable electrode main shaft, grounding electrode main shaft, contact set
Cylinder, movable electrode component, movable electrode guide rod, ground electrode sleeve, ground electrode unit, fixed end sub-component and grounding electrode
Guide rod,
Wherein described modular frame is mainly joined end to end and formed by an egative film and three lateral plates, the fixed plate installation
At the top of modular frame, the movable electrode main shaft and grounding electrode main shaft are through the first relative lateral plate of modular frame
On second lateral plate, the contact sleeve is fixed in fixed plate, and the ground electrode sleeve is fixed on pleurella, fixed end
Component is fixed on egative film, and the movable electrode component is sleeved in contact sleeve and by movable by movable electrode guide rod
Electrode insulation arm is connected on movable electrode main shaft, and movable electrode component bottom is mutually fitted with fixed end sub-component top contact end position
Match somebody with somebody, the ground electrode unit is arranged in ground electrode sleeve by grounding electrode guide rod and passes through grounding electrode insulation arm
It is connected on grounding electrode main shaft, the bottom of ground electrode unit contacts end position with fixed end sub-component sidepiece and is adapted；It is described
The end face being in contact on movable electrode component with fixed end sub-component is Mume flower contact, and ground electrode unit connects with fixed end sub-component
Tactile end face is Mume flower contact；The contact sleeve and movable electrode component form plenum chamber, the room sulfur hexafluoride of calming the anger
Insulating gas, the gas that plenum chamber is communicated with the movable electrode component are oriented to concave groove；The fixed end sub-component with can
Copper-tungsten is equipped with the contact surface of moving electrode component, and the contact surface of the fixed end sub-component and ground electrode unit
Layer.
Further technical scheme is the direction of motion and the movable electrode component and fixed end of the movable electrode component
The tactile end face of attached components is mutually perpendicular to, the direction of motion and the ground electrode unit and fixed end sub-component of the ground electrode unit
The end face being in contact is mutually perpendicular to.
Further technical scheme is that the movable electrode main shaft and grounding electrode main shaft are by main shaft copper sheathing and axle
Mutually fixed with elastic washer and first the second lateral plate of lateral plate, the ground electrode sleeve is to be fixed on the 3rd by short circuit copper bar
On lateral plate.
Further technical scheme is that the contact sleeve is by sleeve gasket, packing ring, spring washer, cup head
Hexagon socket head cap screw and it is fixed on inlet wire copper bus-bar in fixed plate.
Further technical scheme is that the contact sleeve is insulating materials moulding by casting, and fixed end sub-component is to pass through
The sub- fixture in fixed end is fixed on egative film.
It is using beneficial effect caused by above-mentioned technical proposal：
1, the Mume flower contact formula of movable electrode component and the ground electrode unit use of this on-load switch, when making combined floodgate, move
Pressure direction between static contact is vertical with the direction of motion, and spring when contact is connected is small, and conductive contact connection is more reliable after combined floodgate,
Electric Field Distribution than any blade structure evenly, and short circuit current by when, due between fingertip between fingertip and conducting rod it is electric
It is consistent to flow direction, electric power tends to fingertip pressing to conducting rod, and dynamic stability is better.
2, the movable electrode component of this on-load switch is assemblied in insulating sleeve, and insulating sleeve is built with guide rod and movably
A plenum chamber is formed after electrode assemblie also in sleeve, when sub-switching operation, movable electrode fast upward motion, compression
Six-component force balance gas in air pressing type, and concave groove is oriented to by the special gas in lower end and quickly blows to electric arc；The structure
Tolerance is sufficient in plenum chamber, and air-flow spouting velocity is fast, and directionality is accurate, and connecting-disconnecting function greatly improves.
3, copper-tungsten material is selected on contact tip, should because plenum chamber is located in the contact sleeve of insulating materials
Structure effectively can quickly blow out electric arc by the gas in plenum chamber, avoid short trouble, and fixed end is constantly in fresh
In six-component force balance gas, effectively extend the service life and protective capability of on-load switch.
4, modular frame, whole on-load switch is turned into a standalone module in switchgear main body, can be advance
After whole on-load switch is individually assembled, then assembled in equipment, than traditional mode in master in terms of assembling and inspection
The method assembled on body was both simple, reliably saved trouble and laborsaving, can effectively carry out large-scale production.
Brief description of the drawings
Fig. 1 is a kind of structural perspective of on-load switch of the present invention.
Fig. 2 is a kind of structural front view of on-load switch of the present invention.
Fig. 3 is Fig. 2 A-A sectional views.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1, Fig. 2 and Fig. 3 show a kind of one embodiment of on-load switch of the present invention：A kind of on-load switch, including it is solid
It is fixed board 1, modular frame 2, movable electrode main shaft 4, grounding electrode main shaft 26, contact sleeve 9, movable electrode component 10, movable
Electrode guide rod 8, ground electrode sleeve 25, ground electrode unit 14, fixed end sub-component 21 and grounding electrode guide rod 13,
Wherein described modular frame 2 is mainly joined end to end and formed by an egative film and three lateral plates, and the fixed plate 1 is pacified
Mounted in the top of modular frame 2, the movable electrode main shaft 4 and grounding electrode main shaft 26 are relative through modular frame 2
On first the second lateral plate of lateral plate, the contact sleeve 9 is fixed in fixed plate 1, and the ground electrode sleeve 25 is fixed on the 3rd
On lateral plate, fixed end sub-component 21 is fixed on egative film, and the movable electrode component 10 is sleeved on tactile by movable electrode guide rod 8
It is connected in headgear cylinder 9 and by movable electrode insulation arm 24 on movable electrode main shaft 4, the bottom of movable electrode component 10 and fixed end
The top contact end position of sub-component 21 is adapted, and the ground electrode unit 14 is arranged on ground connection by grounding electrode guide rod 13
It is connected in electrode sleeve 25 and by grounding electrode insulation arm 11 on grounding electrode main shaft 26, the bottom of ground electrode unit 14
End position is contacted with the sidepiece of fixed end sub-component 21 to be adapted；It is in contact on the movable electrode component 10 with fixed end sub-component 21
End face is Mume flower contact, and the end face that ground electrode unit 14 is in contact with fixed end sub-component 21 is Mume flower contact；The contact set
Cylinder 9 and movable electrode component 10 form plenum chamber 23, six-component force balance gas in the plenum chamber 23, the movable electrode group
The gas that plenum chamber 23 is communicated with part 10 is oriented to concave groove 22；The fixed end sub-component 21 connects with movable electrode component 10
Contacting surface, and the fixed end sub-component 21 on the contact surface of ground electrode unit 14 with being equipped with copper-tungsten layer.
Originally a switch generally modular organization is met, it is all to be assemblied on modular frame 2, then pass through totally enclosed type
The corresponding interface of gas-insulated switchgear is installed in closed gas tank, the relatively convenience of assembling, reliability, batch production efficiency
Property is that other like products are incomparable；Plenum chamber 23 is loaded on fully closed sulfur hexafluoride gas-insulating switchgear
It is interior, by the excellent insulating properties of sulfur hexafluoride gas and arc extinguishing ability, the normal combined floodgate sub-switching operation of on-load switch is realized, is pressed
Large-minded in air chamber 23, the air-flow spouting velocity of compression is exceedingly fast, and the gas of unique design is oriented to concave groove 22, makes arc extinguishing ability i.e.
It is quick and accurate, significantly improve connecting-disconnecting function and service life；The end face of movable electrode component 10 and the end face of ground electrode unit 14
For Mume flower contact formula structure, substantially effectively contacted when closing a floodgate with fixed end sub-component 21, contact surface is uniform, makes electric field point
Cloth is also more uniform.
The wherein movable electrode insulation arm 24 of on-load switch and grounding electrode insulation arm 11 is premium insulation part, movable electrode
Main shaft 4 and grounding electrode main shaft 26 are metalwork, divide operating system alternate without other insulating parts in conjunction, avoid alternate larger
Leakage Current, improve high load capacity switch operation stabilization and reliability.
According to a kind of another embodiment of on-load switch of the present invention, the direction of motion of the movable electrode component 10 with can
The end face that moving electrode component 10 and fixed end sub-component 21 are in contact is mutually perpendicular to, the direction of motion of the ground electrode unit 14 with
The end face that ground electrode unit 14 is in contact with fixed end sub-component 21 is mutually perpendicular to, and such effect is to remain contact surface
It is face and face while contact when contacting with each other, rather than point and point or point and face, it ensure that the uniform of electric field.
According to a kind of another preferred embodiment of on-load switch of the present invention, the movable electrode main shaft 4 and grounding electrode
Main shaft 26 is mutually fixed with axle elastic washer 5 with first the second lateral plate of lateral plate by main shaft copper sheathing 3, wherein main shaft copper sheathing 3
The effect of insulation and fastening is primarily served with axle elastic washer 5, the ground electrode sleeve 25 is solid by short circuit copper bar 12
It is scheduled on pleurella.
According to a kind of another preferred embodiment of on-load switch of the present invention, the contact sleeve 9 is to pass through sleeve gasket
18th, packing ring 17, spring washer 16, cup head hexagon socket head cap screw 15 and it is fixed on inlet wire copper bus-bar 6 in fixed plate 1.
According to a kind of another preferred embodiment of on-load switch of the present invention, the contact sleeve 9 is poured into a mould for insulating materials
Shaping, fixed end sub-component 21 is to be fixed on egative film by the sub- fixture 20 in fixed end.
Here it is worth noting that：The use of fixed contact terminal assemblies 21, ground electrode unit 14, movable electrode component 10
Other metallic conductors change size, remain to the electric property with not higher than the present invention；Such as cancel grounding electrode
Component 14, grounding electrode guide rod 13, short circuit copper bar 12, grounding electrode insulation arm 11, become only possess on/off switch function and
Cancel the on-load switch of grounding function, equally in ability distribution system therefore present invention protection can be used to include according to user's request
It is not limited to the technical characteristic of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can in the range of disclosure, drawings and claims
A variety of variations and modifications are carried out with the building block to theme combination layout and/or layout.Except to building block and/or layout
Outside the variations and modifications of progress, to those skilled in the art, other purposes also will be apparent.
Claims (1)
- A kind of 1. on-load switch, it is characterised in that：Including fixed plate (1), modular frame (2), movable electrode main shaft (4), connect Ground electrode main shaft (26), contact sleeve (9), movable electrode component (10), movable electrode guide rod (8), ground electrode sleeve (25), ground electrode unit (14), fixed end sub-component (21) and grounding electrode guide rod (13),Wherein described modular frame (2) is mainly joined end to end and formed by an egative film and three lateral plates, three lateral plate bags The first lateral plate, the second lateral plate and pleurella are included, the fixed plate (1) is arranged on the top of modular frame (2), described movable Electrode main shaft (4) and grounding electrode main shaft (26) run through on modular frame (2) relative first lateral plate and the second lateral plate, The contact sleeve (9) is fixed in fixed plate (1), and the ground electrode sleeve (25) is fixed on the pleurella, fixed Terminal assemblies (21) are fixed on egative film, and the movable electrode component (10) is sleeved on contact by movable electrode guide rod (8) It is connected in sleeve (9) and by movable electrode insulation arm (24) on movable electrode main shaft (4), movable electrode component (10) bottom It is adapted with fixed end sub-component (21) top contact end position, the ground electrode unit (14) passes through grounding electrode guide rod (13) it is arranged in ground electrode sleeve (25) and is connected to by grounding electrode insulation arm (11) on grounding electrode main shaft (26), The bottom of ground electrode unit (14) contacts end position and is adapted with fixed end sub-component (21) sidepiece；The movable electrode component (10) end face being in contact on fixed end sub-component (21) is Mume flower contact, ground electrode unit (14) and fixed end sub-component (21) The end face being in contact is Mume flower contact；The contact sleeve (9) and movable electrode component (10) form plenum chamber (23), the pressure Filling six-component force balance gas in air chamber (23), the interior gas for being communicated with plenum chamber (23) of the movable electrode component (10) It is oriented to concave groove (22)；The fixed end sub-component (21) and the contact surface of movable electrode component (10), and the fixed end subgroup Copper-tungsten layer is equipped with the contact surface of part (21) and ground electrode unit (14),Wherein, the movable electrode insulation arm (24) and grounding electrode insulation arm (11) are premium insulation material, the movable electricity Pole main shaft (4) and grounding electrode main shaft (26) are metalwork；The direction of motion of the movable electrode component (10) and movable electricity The end face that pole component (10) and fixed end sub-component (21) are in contact is mutually perpendicular to, the direction of motion of the ground electrode unit (14) It is mutually perpendicular to ground electrode unit (14) with the end face that fixed end sub-component (21) is in contact；The movable electrode main shaft (4) and Grounding electrode main shaft (26) be by main shaft copper sheathing (3) and axle elastic washer (5), respectively with first lateral plate and the second side Piece is mutually fixed, and the ground electrode sleeve (25) is to be fixed on by short circuit copper bar (12) on pleurella；The contact sleeve (9) is by sleeve gasket (18), packing ring (17), spring washer (16), cup head hexagon socket head cap screw (15) and with inlet wire copper bus-bar (6) it is fixed in fixed plate (1)；The contact sleeve (9) is insulating materials moulding by casting, fixed Terminal assemblies (21) are to be fixed on egative film by the sub- fixture in fixed end (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102390.9A CN104078269B (en) | 2013-03-27 | 2013-03-27 | A kind of on-load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102390.9A CN104078269B (en) | 2013-03-27 | 2013-03-27 | A kind of on-load switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104078269A CN104078269A (en) | 2014-10-01 |
| CN104078269B true CN104078269B (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310102390.9A Active CN104078269B (en) | 2013-03-27 | 2013-03-27 | A kind of on-load switch |
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| Country | Link |
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| CN (1) | CN104078269B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819903A (en) * | 2010-04-26 | 2010-09-01 | 南京业基电气设备有限公司 | Dynamic/static contact device of main circuit of load switch |
| CN102237220A (en) * | 2010-04-26 | 2011-11-09 | 南京业基电气设备有限公司 | Grounding loop moving/static contact device for load switch |
| CN102629530A (en) * | 2012-03-30 | 2012-08-08 | 厦门华电开关有限公司 | Arc-extinguishing load switch and switch equipment |
| CN203118847U (en) * | 2013-03-27 | 2013-08-07 | 上海中亚电气有限公司 | Load switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2654037T3 (en) * | 2003-12-02 | 2018-02-12 | Schneider Electric Energy Manufacturing Italia S.R.L. | Switching device / circuit breaker for electrical substations |
| DE102010007691A1 (en) * | 2010-02-09 | 2011-08-11 | Siemens Aktiengesellschaft, 80333 | Electrical switching device |
-
2013
- 2013-03-27 CN CN201310102390.9A patent/CN104078269B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819903A (en) * | 2010-04-26 | 2010-09-01 | 南京业基电气设备有限公司 | Dynamic/static contact device of main circuit of load switch |
| CN102237220A (en) * | 2010-04-26 | 2011-11-09 | 南京业基电气设备有限公司 | Grounding loop moving/static contact device for load switch |
| CN102629530A (en) * | 2012-03-30 | 2012-08-08 | 厦门华电开关有限公司 | Arc-extinguishing load switch and switch equipment |
| CN203118847U (en) * | 2013-03-27 | 2013-08-07 | 上海中亚电气有限公司 | Load switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104078269A (en) | 2014-10-01 |
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