CN203192680U - Hybrid full-insulation switch - Google Patents
Hybrid full-insulation switch Download PDFInfo
- Publication number
- CN203192680U CN203192680U CN 201320022172 CN201320022172U CN203192680U CN 203192680 U CN203192680 U CN 203192680U CN 201320022172 CN201320022172 CN 201320022172 CN 201320022172 U CN201320022172 U CN 201320022172U CN 203192680 U CN203192680 U CN 203192680U
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- ground connection
- insulation
- fixed contact
- connection fixed
- moving
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Abstract
A hybrid full-insulation switch comprises an insulation housing and a vacuum explosion chamber positioned in the insulation housing; an arc extinguishing operation chamber is arranged in the insulation housing; a first insulation operation rod operating a moving contact assembly and a fixed contact assembly of the vacuum explosion chamber to open or close is arranged in the arc extinguishing operation chamber; an wire outlet and a wire inlet electrically connected with a moving conducting rod and a fixed conducting rod of the vacuum explosion chamber are arranged on the insulation housing; and the switch is characterized in that the insulation housing is filled with insulation oil. The hybrid full-insulation switch delicately combines solid insulation with oil insulation, so the insulation housing is provided with a smaller size under same voltage, and further miniaturization development of the switch equipment becomes possible; and simultaneously an earthing isolation chamber filled with the insulation oil is added, so given a condition that an earthing function is provided, the switch has smaller size and better insulation property. Furthermore, because the applied insulation oil is very small in amount, so environment fire hazard hidden trouble cannot be formed, and the switch can be widely applied in indoor environments.
Description
Technical field
The utility model relates to a kind of power switch, specifically refers to a kind of solid all-insulated switch that has two station vacuum interrupters.
Background technology
Miniaturization development along with high voltage switchgear, the insulation that means switching devices is had higher requirement, at present in the switchgear, insulation mode mainly contains four types: air insulation, oil-insulation, solid insulation and special gas insulation, wherein solid insulation switch is strong because of environmental suitability, safe, safeguard few, degree of miniaturization advantages of higher and in High-Voltage Electrical Appliances, obtained widely using, be that the solid all-insulated switch has become electric elements common in the electric power complete set of equipments, it has generally included insulation crust and vacuum interrupter, and wherein vacuum interrupter includes moving again, the fixed contact assembly.Number be CN201868771U " environment protection solid all-insulated switch " as the Chinese patent Granted publication, have three single-phase switch modules in this solid all-insulated switch, each single-phase switch module comprises an isolating switch chamber, a vacuum extinction storehouse and a fuse chamber again, be provided with insulating bar in each vacuum extinction storehouse, this insulating bar is connected with the moving contact of vacuum interrupter, controls the indoor moving contact of vacuum extinction and separating brake or the combined floodgate of fixed contact by the operation insulating bar.
But at present owing to branch, switching-on mechanism and earthing mechanism in the solid insulation switch all are in the air, because airborne creepage distance is big, in order to guarantee insulation, so the volume of existing solid insulation switch is all bigger.So existing people still solve an above-mentioned difficult problem seeking a kind of better insulation mode, make the degree of miniaturization of complete sets of products that bigger raising be arranged.
The utility model content
Technical problem to be solved in the utility model is the present situation at prior art, and a kind of good insulation preformance is provided, the mixing all-insulated switch that volume is littler.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of mixing all-insulated switch, comprise insulation crust and the vacuum interrupter that is positioned at insulation crust, in described insulation crust, has the arc extinguishing operating room, be provided with in this arc extinguishing operating room and can operate indoor the moving of vacuum extinction, first insulating bar that the fixed contact assembly divides or closes, simultaneously be provided with moving with above-mentioned vacuum interrupter at described insulation crust, moving in the fixed contact assembly, the leading-out terminal that static conductive rod is electrically connected mutually and end of incoming cables is characterized in that: be filled with insulating oil in the described insulation crust.
In such scheme, be filled with insulating oil in the described insulation crust and refer to: be filled with insulating oil in the described arc extinguishing operating room.Perhaps, when the utility model is set up grounding function, namely when also having the earthing chamber of isolation in the insulation crust, be filled with insulating oil in the described insulation crust and refer to: one of them is filled with insulating oil at least in described arc extinguishing operating room and the isolation earthing chamber.Just, have in the all-insulated switch of grounding function, only be filled with insulating oil in the arc extinguishing operating room; Perhaps only isolate and be filled with insulation in the earthing chamber; Perhaps all be filled with insulating oil in arc extinguishing operating room and the isolation earthing chamber.
In the above-mentioned scheme that has additional grounding function, preferred construction is, be provided with second insulating bar that inner end has the ground connection moving contact in the described isolation earthing chamber, in this isolation earthing chamber, be provided with simultaneously two-phase is spaced apart and can contact with the moving head phase of above-mentioned ground connection movable contact cooperation successively the first ground connection fixed contact group and the second ground connection fixed contact group, wherein the first ground connection fixed contact group is made up of the first ground connection fixed contact that is oppositely arranged and the second ground connection fixed contact, the described first ground connection fixed contact is connected with earth terminal on being positioned at insulation crust, the second ground connection fixed contact is connected with described leading-out terminal, the described second ground connection fixed contact group is made up of the 3rd ground connection fixed contact that is oppositely arranged and the 4th ground connection fixed contact, and described the 3rd ground connection fixed contact is connected with described leading-out terminal, and the 4th ground connection fixed contact is connected with described moving conductive rod by electric conductor.When the utility model normally divide, when closing a floodgate, moving conductive rod can be connected with leading-out terminal by electric conductor, the 4th ground connection fixed contact, ground connection moving contact, the 3rd ground connection fixed contact.Under the condition of vacuum interrupter separating brake, when leading-out terminal needs ground connection, then as long as drive second insulating bar, drive the ground connection moving contact and move, make it to touch with the first ground connection fixed contact winding, leading-out terminal is connected with earth terminal by the first ground connection fixed contact group and ground connection moving contact.
In above-mentioned preferred version, further improvedly be, has a cavity in the described ground connection moving contact, in this cavity, be placed with the reed that the sidewall that makes this ground connection moving contact has outside extension trend, this ground connection moving contact is contacted mutually tightly, to improve electric property respectively with first, second ground connection fixed contact group.
In above-mentioned preferred version, because moving conductive rod need move with respect to electric conductor, consider that service time one is long, what might cause that both contact is not tight, so further improvedly again be, be arranged with a conducting ring that matches and contact with described electric conductor on the described moving conductive rod, and the contact-making surface between this conducting ring and electric conductor has an annular groove, in this annular groove, be embedded with a ring spring.Preferably, described annular groove is positioned on the described conducting ring.By setting up ring spring at two contact-making surfaces, can after long-time the use, still can guarantee the tight contact of both contact-making surfaces.And such structure makes that also electrical connection is more compact, and volume is littler.
Be preferably, described arc extinguishing operating room and isolation earthing chamber are connected, and to make things convenient for oiling, can make insulation crust internal pressure unanimity simultaneously, and the pressure of also being convenient in the future discharges adjusting.
Be preferably, also be provided with pressure relief valve on the described insulation crust, so that keep normal required pressure in the insulation crust.
Compared with prior art, because the utility model is filled with insulating oil in insulation crust, namely dexterously solid insulation and oil-insulation are combined, make under equal voltage, insulation crust of the present utility model has littler volume, thereby can make switchgear further develop into possibility to miniaturization; After the utility model is set up the ground connection isolation ward that is filled with insulating oil, make utility model littler in the situation lower volume that has grounding function equally simultaneously, insulation property are better.Moreover, owing to the amount of the required insulating oil of the utility model is very little, can not form the hidden danger of environment fire, thereby can be widely used in the indoor environment.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of ground connection moving contact among Fig. 1;
Fig. 3 is the structural representation of the spring connection group on the moving conductive rod among Fig. 1;
Fig. 4 is the perspective view of Fig. 3 medi-spring.
Embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in Figures 1 to 4, this mixing all-insulated switch comprises insulation crust 1 and is positioned at the three-phase vacuum interrupter 2 of insulation crust 1 successively and is positioned at three-phase end of incoming cables 3 on the insulation crust 1, three-phase leading-out terminal 4, because it is phase structure is identical, existing one being that example is illustrated mutually wherein.
Has the arc extinguishing operating room 11 that is filled with insulating oil in the above-mentioned insulation crust, be provided with in this arc extinguishing operating room 11 and can operate first insulating bar 5 that the dynamic and static contact assemblies in the vacuum interrupter 2 divide or close, above-mentioned end of incoming cables 3, leading-out terminal 4 respectively with the dynamic and static contact assembly of vacuum interrupter 2 in static conductive rod 21, moving conductive rod 22 be electrically connected mutually.
In the present embodiment, above-mentioned mixing all-insulated switch also has grounding function, namely also has the earthing chamber 12 of isolation in insulation crust, and this isolation earthing chamber 12 is connected with arc extinguishing operating room 11, and feasible the isolation in the earthing chamber 12 is filled with insulating oil.In this isolation earthing chamber 12, be provided with second insulating bar 7 that inner end has ground connection moving contact 6a, in this isolation earthing chamber, be provided with simultaneously two-phase is spaced apart and can contact with above-mentioned ground connection moving contact phase cooperation successively the first ground connection fixed contact group 6b and the second ground connection fixed contact group 6c, wherein the first ground connection fixed contact group 6b is positioned at the below of the second ground connection fixed contact group 6a, it is made up of the first ground connection fixed contact 61b that is oppositely arranged and the second ground connection fixed contact 62b, the first ground connection fixed contact 61b is connected with earth terminal 8 on being positioned at insulation crust, and the second ground connection fixed contact 62b is connected with leading-out terminal 4; The second ground connection fixed contact group 6c then is made up of the 3rd ground connection fixed contact 61c that is oppositely arranged and the 4th ground connection fixed contact 62c, and the 3rd ground connection fixed contact 61c is connected with leading-out terminal 4, and the 4th ground connection fixed contact 62c is connected with moving conductive rod 22 by electric conductor 23.
For above-mentioned ground connection moving contact 6a can reliably be contacted with first, second ground connection fixed contact group successively, in the present embodiment, has a cavity 61a in the above-mentioned ground connection moving contact, in this cavity, be placed with the reed 9 that the sidewall that makes this ground connection moving contact has outside extension trend, by means of reed, the ground connection moving contact is contacted mutually tightly with corresponding ground connection fixed contact group.
In said structure, for moving conductive rod is contacted more closely with electric conductor, and guarantee to have enough little volume, on above-mentioned moving conductive rod, also be arranged with a conducting ring 24 that matches and contact with described electric conductor, and the contact-making surface between this conducting ring and electric conductor 23 has an annular groove 241, in the present embodiment, on the conducting ring 24 that annular groove 241 is positioned at, in this annular groove, be embedded with a ring spring 10.
To keep normal pressure in the insulation crust in order making, on described insulation crust, also to be provided with pressure relief valve 20.
When the vacuum arc control device normally divide, when closing a floodgate, above-mentioned ground connection moving contact is positioned at the second ground connection fixed contact group place always, and moving conductive rod is connected with leading-out terminal with the second ground connection fixed contact group by this ground connection moving contact.Work as line maintenance, when needing leading-out terminal ground connection, then drive first insulating bar, drive on the moving conductive rod and move, the dynamic and static contact in vacuum interrupter is separated, then, can drive second insulating bar, make the ground connection moving contact move down the back and touch with the first ground connection fixed contact winding, at this moment, leading-out terminal is connected with earth terminal, can reach the purpose of leading-out terminal ground connection.
Although more than described preferred embodiment of the present utility model in detail, but should be expressly understood that, for a person skilled in the art, the utility model can have various changes and variation, as only being that arc extinguishing operating room 11 is filled with insulating oil in the various embodiments described above, perhaps only be to isolate earthing chamber 12 to be filled with insulating oil.Perhaps in not being with grounding function embodiment, be filled with insulating oil in the arc extinguishing operating room 11; Perhaps the structure in the earthing chamber adopts structure of the prior art.Be all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. mixing all-insulated switch, comprise insulation crust (1) and be positioned at the vacuum interrupter (2) of insulation crust (1), in described insulation crust, has arc extinguishing operating room (11), be provided with in this arc extinguishing operating room (11) and can operate indoor the moving of above-mentioned vacuum extinction, first insulating bar (5) that the fixed contact assembly divides or closes, simultaneously be provided with moving with above-mentioned vacuum interrupter (2) at described insulation crust (1), moving in the fixed contact assembly, static conductive rod (22,21) leading-out terminal that is electrically connected mutually (3) and end of incoming cables (4) is characterized in that: described insulation crust is filled with insulating oil in (1).
2. mixing all-insulated switch according to claim 1 is characterized in that, is filled with insulating oil in the described insulation crust (1) and refers to: be filled with insulating oil in the described arc extinguishing operating room (11).
3. mixing all-insulated switch according to claim 1, it is characterized in that, also have isolation earthing chamber (12) in the described insulation crust (1), be filled with insulating oil in the described insulation crust (1) and refer to: one of them is filled with insulating oil at least in described arc extinguishing operating room (11) and the isolation earthing chamber (12).
4. mixing all-insulated switch according to claim 3, it is characterized in that: be provided with second insulating bar (7) that inner end has ground connection moving contact (6a) in the described isolation earthing chamber (12), in this isolation earthing chamber, be provided with simultaneously two-phase is spaced apart and can contact with the moving head phase of above-mentioned ground connection movable contact cooperation successively the first ground connection fixed contact group (6b) and the second ground connection fixed contact group (6c), wherein the first ground connection fixed contact group (6b) is made up of the first ground connection fixed contact (61b) that is oppositely arranged and the second ground connection fixed contact (62b), the described first ground connection fixed contact (61b) is connected with earth terminal (8) on being positioned at insulation crust, the second ground connection fixed contact (62b) is connected with described leading-out terminal (4b), the described second ground connection fixed contact group (6c) is made up of the 3rd ground connection fixed contact (61c) that is oppositely arranged and the 4th ground connection fixed contact (62c), and described the 3rd ground connection fixed contact (61c) is connected with described leading-out terminal (4), and the 4th ground connection fixed contact (62c) is connected with described moving conductive rod (22) by electric conductor (23).
5. mixing all-insulated switch according to claim 4 is characterized in that: have a cavity (61a) in the described ground connection moving contact (6a), be placed with the reed (9) that the sidewall that makes this ground connection moving contact has outside extension trend in this cavity (61a).
6. according to claim 4 or 5 described mixing all-insulated switches, it is characterized in that: be arranged with a conducting ring (24) that matches and contact with described electric conductor (23) on the described moving conductive rod (22), and the contact-making surface between this conducting ring (24) and electric conductor (23) has an annular groove (241), is embedded with a ring spring (10) in this annular groove.
7. mixing all-insulated switch according to claim 6, it is characterized in that: described annular groove (241) is positioned on the described conducting ring (24).
8. mixing all-insulated switch according to claim 3 is characterized in that: described arc extinguishing operating room (11) and isolate earthing chamber (12) and be connected.
9. according to claim 1 or 2 or 3 or 4 or 5 or 8 described mixing all-insulated switches, it is characterized in that: also be provided with pressure relief valve (20) on the described insulation crust (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022172 CN203192680U (en) | 2013-01-16 | 2013-01-16 | Hybrid full-insulation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022172 CN203192680U (en) | 2013-01-16 | 2013-01-16 | Hybrid full-insulation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192680U true CN203192680U (en) | 2013-09-11 |
Family
ID=49109518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320022172 Expired - Fee Related CN203192680U (en) | 2013-01-16 | 2013-01-16 | Hybrid full-insulation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192680U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928261A (en) * | 2013-01-16 | 2014-07-16 | 王永法 | Hybrid all-insulated switch |
| CN104167323A (en) * | 2014-08-03 | 2014-11-26 | 陈爱 | Solid insulation fracture switch |
| CN107068484A (en) * | 2017-06-05 | 2017-08-18 | 西安交通大学 | A kind of HVDC high-speed switch and its method for dividing based on vegetable oil |
-
2013
- 2013-01-16 CN CN 201320022172 patent/CN203192680U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928261A (en) * | 2013-01-16 | 2014-07-16 | 王永法 | Hybrid all-insulated switch |
| CN104167323A (en) * | 2014-08-03 | 2014-11-26 | 陈爱 | Solid insulation fracture switch |
| CN107068484A (en) * | 2017-06-05 | 2017-08-18 | 西安交通大学 | A kind of HVDC high-speed switch and its method for dividing based on vegetable oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |