CN209591908U - SF6 breaker air blowing type arc-chutes - Google Patents
SF6 breaker air blowing type arc-chutes Download PDFInfo
- Publication number
- CN209591908U CN209591908U CN201920602634.2U CN201920602634U CN209591908U CN 209591908 U CN209591908 U CN 209591908U CN 201920602634 U CN201920602634 U CN 201920602634U CN 209591908 U CN209591908 U CN 209591908U
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- China
- Prior art keywords
- sleeve
- moving contact
- chutes
- nozzle
- contact
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- 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.)
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The utility model relates to a kind of SF6 breaker air blowing type arc-chutes, including sleeve, conductive through hole is provided on the left of sleeve, sealing ring is arranged in sliding setting moving contact sleeve in sleeve, contact sleeve side, and the contact sleeve other side connects nozzle, moving contact is fixedly connected in contact sleeve, fingertip is mounted on moving contact, is gap air flue between moving contact and nozzle, setting driving groove in the middle part of contact sleeve periphery.Using the utility model arc-chutes, effectively moving contact can be driven to move back and forth using moving contact sleeve, realize switch breaking-closing operating；Moving contact sleeve outer end is equipped with nozzle, and air nozzle uses polytetrafluoroethylene material resistant to high temperature, can be effectively prevented arc-chutes by electrical arc erosion；Moving contact is stretched out from air nozzle, and there are gap air flues between moving contact and air nozzle, can efficiently control the dynamics of air blowing.
Description
Technical field
The utility model belongs to technical field of electrical equipment, is related to a kind of SF6 breaker air blowing type for distribution system
Arc-chutes.
Background technique
SF6 breaker air blowing type arc-chutes are used for SF6 breaker, and SF6 breaker is enable quickly to extinguish electric arc when cut-offfing,
Improve break performance.Currently, SF6 breaker distribution switchgear is equipped with one group of Petersen coil, electric arc when breaker is cut-off
Electric current generates magnetic energy by coil, using magnetic quenching mode, due to the finite energy that Petersen coil generates, is not enough to allow SF6
The electric arc generated when breaker is cut-off quickly extinguishes, and the arcing time is long, it is most likely that cut-off it is unsuccessful cause switch explode
Accident.
Summary of the invention
The purpose of this utility model is to provide a kind of SF6 breaker air blowing type arc-chutes, when SF6 breaker can be allowed to cut-off
The electric arc of generation quickly extinguishes, and the arcing time is shorter.
According to technical solution provided by the utility model: a kind of SF breaker air blowing type arc-chutes, including sleeve, the set
Cylinder left side is provided with conductive through hole, and sealing ring, institute is arranged in sliding setting moving contact sleeve, the contact sleeve side in the sleeve
Contact sleeve other side connection nozzle to be stated, is fixedly connected with moving contact in the contact sleeve, fingertip is mounted on the moving contact,
It is gap air flue between the moving contact and the nozzle.
The contact sleeve is barrel-like structure as a further improvement of the utility model, is set in the middle part of the contact sleeve
Fixing lug boss is set, the fixing lug boss side is provided with ring air flue, setting driving groove in the middle part of the contact sleeve periphery.
The nozzle is threadedly coupled on the right side of the contact sleeve as a further improvement of the utility model,.
The moving contact side is center venthole, the center roof vent as a further improvement of the utility model,
Side is connected to central airway, and installation base is arranged in the moving contact periphery, and the installation base side is jump-ring slot, the circlip
Slot side is fingertip mounting groove, and the moving contact is fixed on institute by the installation base and the retaining ring being mounted in the jump-ring slot
It states in contact sleeve.
The fingertip is uniformly mounted in fingertip mounting groove as a further improvement of the utility model, and by fingertip bullet
Spring carries out integral loop around fastening.
The nozzle is made of polytetrafluoroethylene material resistant to high temperature as a further improvement of the utility model,.
The utility model compared with prior art, has the advantages that
1, the utility model structure is simple, occupies little space；Dynamic touching can effectively can be driven using moving contact sleeve
Head moves back and forth, and realizes switch breaking-closing operating.
2, the utility model moving contact sleeve outer end is equipped with nozzle, and air nozzle uses polytetrafluoroethylene material resistant to high temperature,
Arc-chutes can be effectively prevented by electrical arc erosion；Moving contact is stretched out from air nozzle, and there are gaps between moving contact and air nozzle
Air flue can efficiently control the dynamics of air blowing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model moving contact.
Fig. 3 is the structural schematic diagram of the utility model moving contact sleeve.
Specific embodiment
Specific embodiment of the present utility model is further described with reference to the accompanying drawing.
In Fig. 1, including moving contact 1, center roof vent 1-1, central airway 1-2, installation base 1-3, jump-ring slot 1-4, touching
Refer to mounting groove 1-5, nozzle 2, moving contact sleeve 3, ring air flue 3-1, driving groove 3-2, fixing lug boss 3-3, fingertip spring 4, touching
Refer to that the components such as 5, sealing ring 6, retaining ring 7, sleeve 8, gap air flue 9 are constituted.
As shown in Figure 1, the utility model is a kind of SF6 breaker air blowing type arc-chutes, including sleeve 8, opened on the left of sleeve 8
There is conductive through hole, sliding setting moving contact sleeve 3 in sleeve 8, as shown in figure 3, contact sleeve 3 is barrel-like structure, contact sleeve 3
Fixing lug boss 3-3 is arranged in middle part, and the side fixing lug boss 3-3 is provided with ring air flue 3-1, and setting driving is recessed in the middle part of 3 periphery of contact sleeve
Slot 3-2 is provided with closure gasket groove 3-4 on the left of contact sleeve 3, installs sealing ring 6 in closure gasket groove 3-4, sealing ring 6 makes moving contact set
It is very close to each other between cylinder 3 and sleeve 8.Nozzle 2 is threadedly coupled on the right side of contact sleeve 3, nozzle 2 uses polytetrafluoroethylene (PTFE) resistant to high temperature
Material can be effectively prevented arc-chutes by electrical arc erosion.
Moving contact 1 is fixedly connected in contact sleeve 3, as shown in Fig. 2, being center venthole 1-1, center on the right side of moving contact 1
Central airway 1-2 is connected on the left of venthole 1-1, it is circlip on the left of installation base 1-3 that installation base 1-3, which is arranged, in 1 periphery of moving contact
It is fingertip mounting groove 1-5 on the left of slot 1-4, jump-ring slot 1-4.Installation base 1-3 and the retaining ring 7 being mounted in jump-ring slot 1-4 will move
Contact 1 is fixed in contact sleeve 3, and several fingertips 5 are uniformly mounted in fingertip mounting groove 1-5, keeps certain between each fingertip 5
Gap, and integral loop is carried out around fastening by fingertip spring 4,1 right end of moving contact exposes nozzle 2, and 1 diameter of moving contact is less than nozzle
2 internal diameters are gap air flue 9 between moving contact 1 and nozzle 2.
The course of work of the utility model is as follows: conducting rod being connected after passing through in the conductive through hole in 8 left side of sleeve and is touched
Refer to 5, and makes to seal on the left of sleeve 8.Driving groove 3-2 on moving contact sleeve 3 is connect with electrical equipment drive mechanism.When needing electric appliance
When combined floodgate, electrical equipment drive mechanism drives moving contact sleeve 3 to move right by driving groove 3-2, and moving contact 1 is inserted into circuit and completes
Close a floodgate, simultaneously because the cavity volume in sleeve 8 increases, arc-chutes SF6 gas in the environment from gap air flue 9 and center
Venthole 1-1 is flowed into sleeve 8.When needing electric appliance to close lock, electrical equipment drive mechanism drives moving contact set by driving groove 3-2
Cylinder 3 is moved to the left, and moving contact 1 extracts circuit completion and closes lock, electric arc is had on moving contact 1, simultaneously because the chamber in sleeve 8 holds
Product becomes smaller, and the SF6 gas in chamber sprays to moving contact 1 from gap air flue 9 and center roof vent 1-1, completes arc extinguishing.
Claims (6)
1. a kind of SF6 breaker air blowing type arc-chutes, it is characterised in that: the arc-chutes include sleeve (8), the sleeve (8)
Left side is provided with conductive through hole, and sliding setting moving contact sleeve (3) in the sleeve (8), contact sleeve (3) side is arranged close
Seal ring (6), contact sleeve (3) other side connect nozzle (2), are fixedly connected with moving contact (1) in the contact sleeve (3),
Fingertip (5) is mounted on the moving contact (1), is between the moving contact (1) and the nozzle (2) gap air flue (9).
2. SF6 breaker air blowing type arc-chutes as described in claim 1, it is characterised in that: the contact sleeve (3) is tubbiness
Fixing lug boss (3-3) is arranged in structure, contact sleeve (3) middle part, and fixing lug boss (3-3) side is provided with ring air flue (3-
1), setting driving groove (3-2) in the middle part of contact sleeve (3) periphery.
3. SF6 breaker air blowing type arc-chutes as described in claim 1, it is characterised in that: spiral shell on the right side of the contact sleeve (3)
Line connects the nozzle (2).
4. SF6 breaker air blowing type arc-chutes as described in claim 1, it is characterised in that: during moving contact (1) side is
Heart venthole (1-1), the center roof vent side (1-1) are connected to central airway (1-2), moving contact (1) the periphery setting
Installation base (1-3), the installation base side (1-3) are jump-ring slot (1-4), and the jump-ring slot side (1-4) is fingertip peace
Tankage (1-5), the installation base (1-3) and the retaining ring (7) being mounted in the jump-ring slot (1-4) are by the moving contact (1)
It is fixed in the contact sleeve (3).
5. SF6 breaker air blowing type arc-chutes as claimed in claim 4, it is characterised in that: the fingertip (5) is uniformly mounted on
In fingertip mounting groove (1-5), and integral loop is carried out around fastening by fingertip spring (4).
6. SF6 breaker air blowing type arc-chutes as described in claim 1, it is characterised in that: the nozzle (2) uses high temperature resistant
Polytetrafluoroethylene material be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920602634.2U CN209591908U (en) | 2019-04-28 | 2019-04-28 | SF6 breaker air blowing type arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920602634.2U CN209591908U (en) | 2019-04-28 | 2019-04-28 | SF6 breaker air blowing type arc-chutes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591908U true CN209591908U (en) | 2019-11-05 |
Family
ID=68346548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920602634.2U Active CN209591908U (en) | 2019-04-28 | 2019-04-28 | SF6 breaker air blowing type arc-chutes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209591908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| CN114496615A (en) * | 2022-02-14 | 2022-05-13 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
| CN114628175A (en) * | 2021-12-21 | 2022-06-14 | 平高集团有限公司 | Circuit breaker arc extinguish chamber and nozzle fixing structure thereof |
-
2019
- 2019-04-28 CN CN201920602634.2U patent/CN209591908U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| CN114628175A (en) * | 2021-12-21 | 2022-06-14 | 平高集团有限公司 | Circuit breaker arc extinguish chamber and nozzle fixing structure thereof |
| CN114628175B (en) * | 2021-12-21 | 2023-11-17 | 平高集团有限公司 | Arc extinguishing chamber of circuit breaker and spout fixed knot of arc extinguishing chamber |
| CN114496615A (en) * | 2022-02-14 | 2022-05-13 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
| CN114496615B (en) * | 2022-02-14 | 2023-11-10 | 平高集团有限公司 | Spout connection structure and explosion chamber and circuit breaker |
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