CN203983828U - A kind of solid insulation switch - Google Patents
A kind of solid insulation switch Download PDFInfo
- Publication number
- CN203983828U CN203983828U CN201420446304.6U CN201420446304U CN203983828U CN 203983828 U CN203983828 U CN 203983828U CN 201420446304 U CN201420446304 U CN 201420446304U CN 203983828 U CN203983828 U CN 203983828U
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- Prior art keywords
- switch
- conductor
- insulation
- solid insulation
- vacuum interrupter
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Abstract
The utility model discloses a kind of solid insulation switch, comprise that outside scribbles the insulation shell of ground plane, in described insulation shell, be provided with isolating switch, earthed switch and vacuum interrupter, the structure of described solid insulation switch is symmetrical, and described isolating switch and earthed switch, vacuum interrupter are arranged on respectively its left and right sides symmetrically.Usefulness of the present utility model is: thus the volume of taking symmetrical structure to reduce equipment together with being cast in isolating switch, earthed switch and circuit breaker reduces assembling link simultaneously, various line modes are convenient in the design being arranged symmetrically with, improve the versatility of different switch cubicle schemes, reduce development cost; Use conductor screen to optimize the design of gas fracture in solid insulation structure, thereby make the length of gas fracture minimum, given play to the advantage of the disruptive field intensity that solid insulating material is high, whole equipment size is reduced, whole insulation system is compacter.
Description
Technical field
the utility model relates to the field of electrical equipment in electric power system, particularly relates to a kind of solid insulation switch in high-voltage switch equipment.
Background technology
Solid insulation switch, owing to not using SF6 gas, therefore compares environmental protection.For guaranteeing that human body in service touches without dangerous, its outer surface is coated with conductor or the coated semiconductor of ground connection; By utilizing tolerance field intensity and the comparatively good heat radiation that solid insulating material is higher, solid-state insulated switchgear structure is compacter.
At present, only use solid insulation housing by main switch element parcel wherein in solid insulation switch cabinet, can not really embody the advantage of solid insulation, volume can not effectively reduce simultaneously.Due to exocuticle ground connection, thereby the very difficult office that controls product puts.
The main components of solid insulation switch, owing to wrapping in epoxy enclosure interior, therefore can not see that its fracture can not judge the charged situation of its each several part.
Patent CN200810013281.9 discloses a kind of epoxy pouring solid insulation switch with double-isolation, and it comprises three identical Switch main bodies in epoxy housing, and Switch main body comprises vacuum interrupter and two identical upper and lower isolating switches; Upper isolating switch, vacuum explosion-chamber cabin and lower isolating switch are mutually permanently connected, upper isolating switch be positioned at vacuum explosion-chamber cabin above, lower isolating switch be positioned at vacuum explosion-chamber cabin below and horizontal installation direction identical with upper isolating switch, at right angle setting direction is relative with upper isolating switch; Because adopting three chambeies, it arranges that overall structure is larger.And energized conductor direct part waters in epoxy, epoxy mainly plays fixed conductor, and three friendships place of conductor and epoxy and air are shielding not effectively, thereby in servicely often has current situation and put and exceed standard and the accident of insulation breakdown.This structure can not judge the charged situation of each several part reliably simultaneously.
Patent CN 201310318932.6 discloses a kind of solid insulation pole, and it is provided with the insulation shell of isolating switch, earthed switch and vacuum interrupter in comprising; The quiet end of described earthed switch is divided with the quiet end of described isolating switch and is divided and have the interior moved end common-use tunnel that shares moved end and operating mechanism that arranges; Described isolating switch and earthed switch form coaxial straight moving three station structures.Both end sides at isolation switch insulation cylinder and earthed switch insulating cylinder is all equipped with radome.When cupboard is taked after different line modes, supporting product needs to redesign as bus casing, fuse unit etc. with it.Straight moving three stations and circuit breaker fail effectively to isolate, and easily the arc extinguishing of vacuum interrupter are exerted an influence and cause failure of interruption, and directly move three stations and air cavity of each self-forming of circuit breaker, are unfavorable for internal gas fluid interchange, cause product heating larger.
Summary of the invention
Larger in order to solve in solid insulation switch overall volume, internal electric field skewness heat dispersion is poor and reliably monitoring equipment is charged puts with office, is unfavorable for the problems such as various cupboard schemes are general simultaneously, and the utility model provides a kind of solid insulation switch.Isolation earthing switch and circuit breaker are cast into one symmetrically, be convenient to improve the versatility that various switch cubicles are arranged, reduce development cost, by take directly to move three stations and slip electrically contacts the design of having optimized gas fracture in solid insulation structure by conductor screen simultaneously, the advantage of having brought into play the disruptive field intensity that solid insulating material is high is reduced whole equipment size, and equipment is more compact; Also utilize spray zinc layer that circuit breaker and isolating switch are divided into two parts, the mutual electromagnetic that has both been conducive to eliminate between them affects the radiating effect that also improves product simultaneously simultaneously; Be provided with and there is the transducer of function of shielding and be provided with venting and form makes this solid insulation switch have higher reliability.
The utility model adopts following technical scheme: a kind of solid insulation switch, comprise that outside scribbles the insulation shell of ground plane, in described insulation shell, be provided with isolating switch, earthed switch and vacuum interrupter, the structure of described solid insulation switch is symmetrical, and described isolating switch and earthed switch, vacuum interrupter are arranged on respectively its left and right sides symmetrically.
Preferably, described isolating switch and vacuum interrupter are provided with clearance for insulation between the two.
Further, the top layer of described clearance for insulation is provided with ground plane.
Preferably, the lower end of described insulation shell is provided with venting, and this venting also can be insulation transparent material and makes and serve as observation window.
Further, the quiet end of described isolating switch is divided by inlet wire conductor, full skirt insulating cylinder and middle conductor and is formed, the quiet end of described earthed switch is divided by middle conductor, earthing conductor and is formed, one end of described middle conductor is crossed full skirt insulating cylinder with described inlet wire conductor dbus and is connected, the quiet end of described isolating switch is divided with the quiet end of earthed switch and is divided and have the public passage that is communicated with successively earthing conductor, middle conductor, full skirt insulating cylinder and inlet wire conductor, the operating mechanism that is provided with moving-conductor in described public passage and drives described moving-conductor to move; The quiet end of described vacuum interrupter is connected with outlet conductor, on the moved end of described vacuum interrupter, be set with a conductive slider, the moved end of described vacuum interrupter is by conductive slider and middle conductor conducting, the moved end of described vacuum interrupter is provided with gauze screen, at the two ends of described full skirt insulating cylinder and the lower end side of described middle conductor, is equipped with gauze screen.
Further, described operating mechanism comprises insulation screw mandrel, described insulation screw mandrel is connected with inlet wire conductor pivotable, described moving-conductor is threaded with insulation screw mandrel, described earthing conductor, middle conductor and inlet wire conductor dbus are crossed its corresponding public passage and are provided with spring touch finger or watchband-shaped contactor, are electrically connected to moving-conductor; Described insulation screw mandrel has the operation part of stretching out described insulation shell.
Further, described public passage lower end communicates with the lower end of circuit breaker.
Further, at described inlet wire conductor and enclosure interior corresponding to outlet conductor, be provided with transducer.
Further, described transducer comprises wire netting or by nylon wire moulding by casting, that have conducting function, the both sides of described wire netting or nylon wire are provided with the circle that turns up, the hole of array arrangement diameter≤5mm on wire side.
Further, described insulation shell is epoxy resin housing, and described isolating switch and earthed switch are copper part or aluminum component.
Usefulness of the present utility model is:
Thereby the volume of 1, isolating switch, earthed switch and circuit breaker being taked symmetrical structure reduce equipment together with being cast in reduces assembling link simultaneously, various line modes are convenient in the design being arranged symmetrically with, improve the versatility of different switch cubicle schemes, reduce development cost;
2, when taking directly to move three stations and slip and electrically contact, use conductor screen to optimize the design of gas fracture in solid insulation structure, thereby make the length of gas fracture minimum, given play to the advantage of the disruptive field intensity that solid insulating material is high, whole equipment size is reduced, and whole insulation system is compacter;
3, in the voltage gradient of the clearance for insulation between isolating switch and vacuum interrupter (over the ground or fracture) direction, by spray zinc layer, circuit breaker and isolating switch being divided into the mutual electromagnetic that two parts be both conducive to eliminate between them affects, and the while is also improved the radiating effect of product;
4, simultaneously in ground plane terminus inner, bring the transducer with function of shielding into, the office that this transducer can testing product puts or voltage.Meanwhile, product has the transparent windows that insulating material is made, thereby realizes the visual function of fracture.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of solid insulation switch of the present utility model (isolating switch "on" position);
Fig. 2 is the internal structure schematic diagram of solid insulation switch of the present utility model (isolating switch gate-dividing state);
Fig. 3 is the internal structure schematic diagram of solid insulation switch of the present utility model (earthed switch "on" position);
Fig. 4 is the structural representation of the wire netting of transducer of the present utility model;
Fig. 5 is the structural representation of gauze screen of the present utility model;
Reference numeral: 1, ground plane; 2, insulation shell; 3, inlet wire conductor; 4, middle conductor; 5, earthing conductor; 6, moving-conductor; 7, insulation screw mandrel; 8, insulated tension pole; 9, conductive slider; 10, vacuum interrupter; 11, outlet conductor; 12, clearance for insulation; 201, full skirt insulating cylinder; 202(203), transducer; 301(401,402,403), gauze screen; 204, venting.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As Figure 1-5, a kind of solid insulation switch, comprise that outside scribbles the insulation shell 2 of ground plane 1, in described insulation shell 2, be provided with isolating switch, earthed switch and vacuum interrupter 10, the structure of described solid insulation switch is symmetrical, and isolation, earthed switch and circuit breaker is symmetrical and be cast into one.Described isolating switch and earthed switch, vacuum interrupter 10 are arranged on respectively its left and right sides symmetrically.Inlet wire conductor 3 wherein can be according to the arrangement requirement of switch cubicle with outlet conductor 11, and function is replaced mutually, for example, from circuit breaker side inlet wire.The components and parts that match with it just do not need to redesign, and versatility is stronger.Ground plane 1 can conduct electricity or semiconductive paint or glue by spraying.Also can be formed by metal spraying, in the present embodiment, adopt spray zinc technology.
Inlet wire conductor 3, middle conductor 4 and earthing conductor 5 are formed and independently isolate ground connection three station structures.Moving-conductor 6 is realized and being moved in public passage by the helicitic texture matching with insulation screw mandrel 7, between moving-conductor 6 and other each conductor, by spring touch finger or watchband-shaped contactor, is realized and being electrically contacted.In the present embodiment, the quiet end of isolating switch is divided by inlet wire conductor 3, full skirt insulating cylinder 201 and middle conductor 4 and is formed, the quiet end of earthed switch is divided by middle conductor 4, earthing conductor 5 and is formed, one end of middle conductor 4 is connected by full skirt insulating cylinder 201 with described inlet wire conductor 3, the quiet end of isolating switch is divided with the quiet end of earthed switch and is divided and have the public passage that is communicated with successively earthing conductor 5, middle conductor 4, full skirt insulating cylinder 201 and inlet wire conductor 3, the operating mechanism that is provided with moving-conductor 6 in public passage and drives described moving-conductor 6 to move; The quiet end of vacuum interrupter 10 is connected with outlet conductor 11, on the moved end of vacuum interrupter 10, be set with a conductive slider 9, the moved end of vacuum interrupter 10 is by conductive slider 9 and middle conductor 4 conductings, and conductive slider 9 is realized and being electrically contacted by spring touch finger or watchband-shaped contactor with middle conductor 4.The moved end of vacuum interrupter 10 is provided with gauze screen 403, for the Electric Field Distribution of even circuit breaker lower end.At the two ends of full skirt insulating cylinder 201 and the lower end side of described middle conductor 4, be equipped with gauze screen 301(401,402).Operating mechanism comprises insulation screw mandrel 7, insulation screw mandrel 7 is connected with inlet wire conductor 3 pivotables, moving-conductor 6 is threaded with insulation screw mandrel 7, and earthing conductor 5, middle conductor 4 and inlet wire conductor 3 are provided with spring touch finger or watchband-shaped contactor by its corresponding public passage, are electrically connected to moving-conductor 6; Insulation screw mandrel 7 has the operation part of stretching out described insulation shell 2.When taking directly to move three stations and slip and electrically contacting, use conductor screen to optimize the design of gas fracture in solid insulation structure, thereby make the length of gas fracture minimum, given play to the advantage of the disruptive field intensity that solid insulating material is high, whole equipment size is reduced, and whole insulation system is compacter.
Isolating switch and vacuum interrupter are provided with clearance for insulation 12 between the two, and the top layer of clearance for insulation 12 is provided with ground plane.Make not influence each other between two parts and be conducive to product heat radiation.
The lower end of insulation shell 2 is provided with the venting 204 of transparent insulation, is convenient to observe three station fractures.This venting also can be insulation transparent material and makes and serve as observation window.Public passage lower end communicates with the lower end of circuit breaker.In the present embodiment, isolation ground connection three station lower ends communicate with circuit breaker lower end, are convenient to internal gas fluid interchange.
Enclosure interior in inlet wire conductor 3 and outlet conductor 11 correspondences is provided with transducer 202(203).Transducer can detect voltage or product office puts.As shown in Figure 4, transducer 202(203) comprise wire netting or by nylon wire moulding by casting, that there is conducting function, the both sides of wire netting or nylon wire are provided with the circle that turns up, and the casting quality at insulating material has been improved in the hole of array arrangement diameter≤5mm on wire side.
Insulation shell 2 is epoxy resin housing, and described isolating switch and earthed switch are copper part or aluminum component.
The course of work of the present utility model is as Figure 1-3:
Fig. 1, be isolating switch "on" position, moving-conductor 6 moves to upper end and inlet wire conductor 3 and forms and electrically contact, and high potential middle conductor 4 forms gas fracture over the ground with earthing conductor 5.
Fig. 2, be isolating switch gate-dividing state, moving-conductor 6 conductor 4 centre positions that mediate, form isolation fractures with inlet wire conductor 3.
Fig. 3, be earthed switch "on" position, moving-conductor 6 moves to lower end and earthing conductor 5 and forms and electrically contact.
In order to solve the field intensity concentration problem of above-mentioned state mesohigh conductor and epoxy resin and inner air three medium intersections, the gauze screen 301(401,402 of setting), thus high voltage induction is effectively dwindled to fracture distance in insulation shell 2.For guarantee creepage distance between high electronegative potential conductor at the epoxy of fracture inner chamber with the full skirt that meets standard-required.Above-mentioned gauze screen 301(401,402), as shown in Figure 5, be coaxial cylindrical structure, its outer end is the Electric Field Distribution in order to even end toward inner side crimping, and during for assurance cast, its side of circulation of insulating material has the array through-hole of diameter≤8 ㎜.This gauze screen is wire netting processing or injection molded with the nylon wire of electric conductivity.
Earthing conductor 5 can be fixed on by support the lower end of insulation shell 2, or is directly fixed on bottom panel.
The concrete installation of the utility model is produced as follows: first precoat and cast out full skirt insulating cylinder 201, gauze screen is installed on each conductor; Again full skirt insulating cylinder 201 outer surfaces are carried out to surface coarsening processing to promote its bond strength by sandblast or spray bead etc.; After utilizing relevant assembly tooling that inlet wire conductor 3, full skirt insulating cylinder 201, middle conductor 4, vacuum interrupter 10 and outlet conductor 11 are linked together by suitable interference fit, transducer 202 and 203 is packed into respectively to inlet wire conductor 3 and the outlet conductor 11 of upper connector; After debugging puts in place, pack in mould, then transducer 202 and 203 is fixed on mould, by heat cured Epoxy Resin, be enclosed in together.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection range of the present utility model.
Claims (10)
1. a solid insulation switch, comprise that outside scribbles the insulation shell of ground plane, in described insulation shell, be provided with isolating switch, earthed switch and vacuum interrupter, it is characterized in that, the structure of described solid insulation switch is symmetrical, and described isolating switch and earthed switch, vacuum interrupter are arranged on respectively its left and right sides symmetrically.
2. a kind of solid insulation switch as claimed in claim 1, is characterized in that, described isolating switch and vacuum interrupter are provided with clearance for insulation between the two.
3. a kind of solid insulation switch as claimed in claim 2, is characterized in that, the top layer of described clearance for insulation is provided with ground plane.
4. a kind of solid insulation switch as claimed in claim 1, is characterized in that, the lower end of described insulation shell is provided with venting, and this venting also can be insulation transparent material and makes and serve as observation window.
5. a kind of solid insulation switch as described in claim 1-4 any one, it is characterized in that, the quiet end of described isolating switch is divided by inlet wire conductor, full skirt insulating cylinder and middle conductor form, the quiet end of described earthed switch is divided by middle conductor, earthing conductor forms, one end of described middle conductor is crossed full skirt insulating cylinder with described inlet wire conductor dbus and is connected, the quiet end of described isolating switch is divided to divide to have with the quiet end of earthed switch and is communicated with successively earthing conductor, middle conductor, the public passage of full skirt insulating cylinder and inlet wire conductor, the operating mechanism that is provided with moving-conductor in described public passage and drives described moving-conductor to move, the quiet end of described vacuum interrupter is connected with outlet conductor, on the moved end of described vacuum interrupter, be set with a conductive slider, the moved end of described vacuum interrupter is by conductive slider and middle conductor conducting, the moved end of described vacuum interrupter is provided with gauze screen, at the two ends of described full skirt insulating cylinder and the lower end side of described middle conductor, is equipped with gauze screen.
6. a kind of solid insulation switch as claimed in claim 5, it is characterized in that, described operating mechanism comprises insulation screw mandrel, described insulation screw mandrel is connected with inlet wire conductor pivotable, described moving-conductor is threaded with insulation screw mandrel, described earthing conductor, middle conductor and inlet wire conductor dbus are crossed its corresponding public passage and are provided with spring touch finger or watchband-shaped contactor, are electrically connected to moving-conductor; Described insulation screw mandrel has the operation part of stretching out described insulation shell.
7. a kind of solid insulation switch as claimed in claim 5, is characterized in that, described public passage lower end communicates with the lower end of circuit breaker.
8. a kind of solid insulation switch as claimed in claim 5, is characterized in that, at described inlet wire conductor and enclosure interior corresponding to outlet conductor, is provided with transducer.
9. a kind of solid insulation switch as claimed in claim 8, it is characterized in that, described transducer comprises wire netting or by nylon wire moulding by casting, that have conducting function, the both sides of described wire netting or nylon wire are provided with the circle that turns up, the hole of array arrangement diameter≤5mm on wire side.
10. a kind of solid insulation switch as described in claim 6-9 any one, is characterized in that, described insulation shell is epoxy resin housing, and described isolating switch and earthed switch are copper part or aluminum component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446304.6U CN203983828U (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446304.6U CN203983828U (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983828U true CN203983828U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420446304.6U Withdrawn - After Issue CN203983828U (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
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| Country | Link |
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| CN (1) | CN203983828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124640A (en) * | 2014-08-08 | 2014-10-29 | 麦克奥迪（厦门）电气股份有限公司 | Solid insulation switch |
-
2014
- 2014-08-08 CN CN201420446304.6U patent/CN203983828U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124640A (en) * | 2014-08-08 | 2014-10-29 | 麦克奥迪（厦门）电气股份有限公司 | Solid insulation switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20171114 |