CN208985906U - A kind of self extinguishing type sulfur hexafluoride breaker of plastic casing - Google Patents
A kind of self extinguishing type sulfur hexafluoride breaker of plastic casing Download PDFInfo
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- CN208985906U CN208985906U CN201821620820.0U CN201821620820U CN208985906U CN 208985906 U CN208985906 U CN 208985906U CN 201821620820 U CN201821620820 U CN 201821620820U CN 208985906 U CN208985906 U CN 208985906U
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- arc
- chutes
- sulfur hexafluoride
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- plectrum
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Abstract
The utility model provides a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing, including plastic housing, semicircle plectrum, transmission arm, arc-extinguishing mechanism, lead-in wire terminal, outlet terminal, conducting wire, the arc-extinguishing mechanism includes arc-chutes, movable contact spring, static contact, piston sleeve, piston, scavenging air valve, the scavenging air valve is connected with arc-chutes bottom, the static contact inserts in above arc-chutes, described movable contact spring one end inserts in piston, the movable contact spring other end is located at the indoor one end of arc extinguishing with static contact and fits, the piston is mounted in piston sleeve, described piston sleeve one end is fixedly linked with arc-chutes, the outlet terminal with insert in piston the movable contact spring other end and be connected by conducting wire, lead-in wire terminal is located at one end outside arc-chutes with static contact by conducting wire and is connected；The semicircle plectrum includes semicircular structure, plectrum, and the plectrum is mounted on the side that semicircular structure has circular arc.The utility model sulfur hexafluoride breaker has the characteristics that structure is simple, small in size.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing, more particularly to a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing.
Background technique
Sulfur hexafluoride breaker is the non-oil ultra high vacuum system switchgear using SF6 gas for dielectric and arc-extinguishing medium, absolutely
Edge performance and arc quenching characteristic are all much higher than oil-break, but existing sulfur hexafluoride breaker volume is larger, structure is complicated leads
Its higher cost is caused, the voltage class of 110kV or more is mainly used in, it is difficult to effectively be applied in breaker of plastic casing, sternly
The universal of sulfur hexafluoride breaker is limited again.
Utility model content
The utility model provides a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing, at least to solve hexafluoro in the prior art
Change the problem of sulphur breaker volume is larger, structure is complicated leads to not applied to breaker of plastic casing.
The utility model provides a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing, including plastic housing, semicircle plectrum, transmission
Arm, arc-extinguishing mechanism, lead-in wire terminal, outlet terminal, conducting wire, the arc-extinguishing mechanism include arc-chutes, movable contact spring, static contact, piston
Casing, piston, scavenging air valve, the scavenging air valve are connected with arc-chutes bottom, fill chamber in the arc-chutes for sulfur hexafluoride, described
Static contact inserts in above arc-chutes, and described movable contact spring one end inserts in piston, and the movable contact spring other end is located at static contact to go out
The indoor one end of arc fits, and the piston is mounted in piston sleeve, and described piston sleeve one end is fixedly linked with arc-chutes,
The outlet terminal with insert in piston the movable contact spring other end and be connected by conducting wire, lead-in wire terminal passes through conducting wire and static contact
One end outside arc-chutes is connected；The semicircle plectrum includes semicircular structure, plectrum, and the plectrum is mounted on semicircle knot
Structure has the side of circular arc, and the center point of the semicircular structure is equipped with bearing, and the semicircle plectrum passes through bearing right angle setting
In plastic housing, the top of the semicircle plectrum is located at one end outside arc-chutes with piston by transmission arm and is connected.
Further, the arc-chutes are aluminium alloy material.
Further, tetrafluoroethene coating is equipped with inside the arc-chutes.
Further, breather valve is additionally provided with above the arc-chutes.
Further, the breaker of plastic casing further includes sulfur hexafluoride storage tank, the sulfur hexafluoride storage tank and scavenging air valve
It is connected.
The utility model compared with prior art, using single chamber arc-extinguishing mechanism, and using arc-chutes, movable contact spring, static contact,
Piston sleeve, piston, scavenging air valve form closed sulfur hexafluoride and fill chamber, conventional jet structure are avoided, to simplify
Arc-extinguishing mechanism effectively reduces arc-extinguishing mechanism size, it is ensured that arc-extinguishing mechanism can be contained in plastic housing.Meanwhile the utility model is moulded
Case circuit breaker realizes arc extinguishing using sulfur hexafluoride blowout compared to using the prior art, is directly immersed in movable contact spring, static contact
In sulfur hexafluoride atmosphere, arc quenching effect is effectively increased.
Detailed description of the invention
Fig. 1 is the utility model embodiment breaker of plastic casing structural schematic diagram.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
The utility model embodiment discloses a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing, as shown in Figure 1, including plastic housing
1, semicircle plectrum 5, transmission arm 6, arc-extinguishing mechanism 4, lead-in wire terminal 2, outlet terminal 3, conducting wire, the arc-extinguishing mechanism 4 include arc extinguishing
Room 41, movable contact spring 44, static contact 43, piston sleeve 45, piston 46, scavenging air valve 42, the scavenging air valve 42 and 41 bottom of arc-chutes
It is connected, fills chamber in the arc-chutes 41 for sulfur hexafluoride, the static contact 43 inserts in 41 top of arc-chutes, the movable contact spring 44
One end inserts in piston 46, and 44 other end of movable contact spring is located at one end in arc-chutes 41 with static contact 43 and fits, described
Piston 46 is mounted in piston sleeve 45, and described 45 one end of piston sleeve is fixedly linked with arc-chutes 41, the outlet terminal 3 with
It inserts in 44 other end of movable contact spring in piston 46 to be connected by conducting wire, lead-in wire terminal 2, which is located at by conducting wire with static contact 43, to go out
One end outside arc chamber 41 is connected；The semicircle plectrum 5 includes semicircular structure 51, plectrum 52, and the plectrum 52 is mounted on semicircle
Shape structure 51 has the side of circular arc, and the center point of the semicircular structure 51 is equipped with bearing, and the semicircle plectrum 5 passes through bearing
It is vertically mounted in plastic housing 1, the top of the semicircle plectrum 5 is located at one end phase outside arc-chutes with piston 46 by transmission arm 6
Even.
Wherein, as shown in Figure 1, being airtight cavity in arc-chutes 41, and full there is sulfur hexafluoride gas.
By electric current it is excessive when, movable contact spring 44, static contact 43 due to electric current it is excessive, cause temperature to increase, to arc-chutes
Sulfur hexafluoride is heated in 41, is made gas expansion and is pushed piston 46, and another movable contact spring 44, static contact 43 separate, and realizes open circuit
The cut-out function of device, the electric arc generated between movable contact spring 44, static contact 43 are absorbed by the sulfur hexafluoride gas of surrounding, are realized
The elimination of electric arc.
When being closed, the plectrum 52 of semicircle plectrum 5 need to only be boosted, make transmission arm 6 that piston 46 is pushed into piston bush
In pipe 45, movable contact spring 44, static contact 43 are contacted, and realize the connection of route.
The utility model embodiment use single chamber arc-extinguishing mechanism, and using arc-chutes, movable contact spring, static contact, piston sleeve,
Piston, scavenging air valve form closed sulfur hexafluoride and fill chamber, avoid conventional jet structure, so that arc-extinguishing mechanism is simplified,
Effectively reduce arc-extinguishing mechanism size, it is ensured that arc-extinguishing mechanism can be contained in plastic housing.Meanwhile the utility model embodiment plastic housing is disconnected
Road device realizes arc extinguishing using sulfur hexafluoride blowout compared to using the prior art, and movable contact spring, static contact are directly immersed in hexafluoro
Change in sulphur atmosphere, effectively increases arc quenching effect.
Optionally, the arc-chutes are aluminium alloy material.
Particularly, tetrafluoroethene coating is equipped with inside the arc-chutes.
Wherein, tetrafluoroethene coating is coated in inside arc-chutes, and the sulfur hexafluoride of arc-chutes is made to fill chamber by tetrafluoroethene
Coating surrounds.
The utility model embodiment, as arc-chutes, improves the heat dissipation performance of arc-chutes, one by using aluminium alloy material
After secondary open circuit, sulfur hexafluoride gas temperature can quickly be reduced by the characteristic of aluminium high efficiency and heat radiation, it is ensured that short-circuiting device can be in short-term
Between again closure use.
Particularly, breather valve is additionally provided with above the arc-chutes.
Particularly, as shown in Figure 1, the breaker of plastic casing further includes sulfur hexafluoride storage tank 7, the sulfur hexafluoride storage tank 7
It is connected with scavenging air valve 42.
Wherein, sulfur hexafluoride storage tank 7 used by the utility model embodiment is low capacity gas storage bottle.
The utility model embodiment sulfur hexafluoride gas can be disappeared by using sulfur hexafluoride storage tank 7 in arc-chutes
It is effectively supplemented after consumption, it is ensured that breaker of plastic casing can be used for a long time.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System, although the utility model is described in detail referring to above-described embodiment, those of ordinary skill in the art should
Understand, technical staff read present specification after specific implementation of the utility model can still be modified or
Equivalent replacement, but these are modified or are changed within all without departing from present utility model application accompanying claims protection scope.
Claims (5)
1. a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing, which is characterized in that the breaker of plastic casing includes plastic housing, semicircle group
Piece, transmission arm, arc-extinguishing mechanism, lead-in wire terminal, outlet terminal, conducting wire, the arc-extinguishing mechanism include arc-chutes, movable contact spring, stationary contact
Piece, piston sleeve, piston, scavenging air valve, the scavenging air valve are connected with arc-chutes bottom, full for sulfur hexafluoride in the arc-chutes
Chamber, the static contact insert in above arc-chutes, and described movable contact spring one end inserts in piston, the movable contact spring other end and static contact
It fits positioned at the indoor one end of arc extinguishing, the piston is mounted in piston sleeve, and described piston sleeve one end and arc-chutes are solid
It is fixed to be connected, the outlet terminal with insert in piston the movable contact spring other end and be connected by conducting wire, lead-in wire terminal passes through conducting wire
It is located at one end outside arc-chutes with static contact to be connected；The semicircle plectrum includes semicircular structure, plectrum, and the plectrum is mounted on
Semicircular structure has the side of circular arc, and the center point of the semicircular structure is equipped with bearing, and the semicircle plectrum passes through bearing
It is vertically mounted in plastic housing, the top of the semicircle plectrum is located at one end outside arc-chutes with piston by transmission arm and is connected.
2. a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing according to claim 1, which is characterized in that the arc-chutes are
Aluminium alloy material.
3. a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing according to claim 2, which is characterized in that in the arc-chutes
Portion is equipped with tetrafluoroethene coating.
4. a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing according to claim 3, which is characterized in that on the arc-chutes
Side is additionally provided with breather valve.
5. a kind of self extinguishing type sulfur hexafluoride breaker of plastic casing according to claim 4, which is characterized in that the plastic housing open circuit
Device further includes sulfur hexafluoride storage tank, and the sulfur hexafluoride storage tank is connected with scavenging air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620820.0U CN208985906U (en) | 2018-10-08 | 2018-10-08 | A kind of self extinguishing type sulfur hexafluoride breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620820.0U CN208985906U (en) | 2018-10-08 | 2018-10-08 | A kind of self extinguishing type sulfur hexafluoride breaker of plastic casing |
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| Publication Number | Publication Date |
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| CN208985906U true CN208985906U (en) | 2019-06-14 |
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| CN201821620820.0U Active CN208985906U (en) | 2018-10-08 | 2018-10-08 | A kind of self extinguishing type sulfur hexafluoride breaker of plastic casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436926A (en) * | 2021-08-27 | 2021-09-24 | 海鑫电力设备制造(南通)有限公司 | Internal electronic component arrangement structure of gas insulated switchgear |
-
2018
- 2018-10-08 CN CN201821620820.0U patent/CN208985906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436926A (en) * | 2021-08-27 | 2021-09-24 | 海鑫电力设备制造(南通)有限公司 | Internal electronic component arrangement structure of gas insulated switchgear |
| CN113436926B (en) * | 2021-08-27 | 2021-10-29 | 海鑫电力设备制造(南通)有限公司 | Internal electronic component arrangement structure of gas insulated switchgear |
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