CN208938875U - A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating - Google Patents
A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating Download PDFInfo
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- CN208938875U CN208938875U CN201821952952.3U CN201821952952U CN208938875U CN 208938875 U CN208938875 U CN 208938875U CN 201821952952 U CN201821952952 U CN 201821952952U CN 208938875 U CN208938875 U CN 208938875U
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- CN
- China
- Prior art keywords
- phase
- cabinet
- sulfur hexafluoride
- contact set
- hexafluoride gas
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Abstract
The utility model discloses a kind of hermetically sealed breakers of sulfur hexafluoride gas-insulating, have the closed case filled with sulfur hexafluoride gas, three-phase are housed into and out of thread casing on cabinet；Cabinet is provided with close/open machine, and cabinet front is equipped with pull operation mechanism；Close/open machine include be oppositely arranged on three-phase into and out of on end on the inside of thread casing contact set and arc-extinguish chamber, contact set be set in the front end of the conducting rod of entrance bushing, and non-return step is equipped on the conducting rod, the lateral wall of contact set is equipped with annular groove；Three-phase shift fork, every Y-shaped structure of phase shift fork are housed on the main shaft of close/open machine, and finger positioned opposite is housed at two plug ends of shift fork, finger stretches in annular groove；The utility model is compact-sized, small volume, and good insulation preformance, close/open machine structure is simple, stable and reliable in work, failure rate is low, and realize 30 years it is non-maintaining.
Description
Technical field
The utility model relates to a kind of breaker, especially a kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating.
Background technique
Currently, in domestic and international 12KV electric system pole-mounted circuit breaker mainly use vacuum tube as insulation and arc-extinguishing medium,
Such as Patent No.: disclosing a kind of " air insulation ring network cabinet vacuum circuit breaker in the patent document of 201620259166 .X of ZL
Device ", this vacuum circuit breaker include pull operation mechanism and line switching protection mechanism, and line switching protection mechanism is placed in shell
It is interior, it is made of the interlinked mechanism and transmission shaft of three-phase vacuum protection unit and corresponding every phase vacuum protection unit；The gearing
Vacuum protection unit of the mechanism for be sequentially connected transmission shaft and respective phase, realizes the closure and cutting to vacuum protection unit
Transmission control.In actual use, vacuum tube price used by vacuum protection unit is high, and matched interlinked mechanism
Structure is complicated, and failure rate is higher, while cost is also higher.
Summary of the invention
The purpose of this utility model seeks to solve vacuum circuit breaker of the currently employed vacuum tube as insulation and arc-extinguishing medium
Device is at high cost, and interlinked mechanism matched with vacuum tube provides one kind in the presence of structure is complicated, the higher problem of failure rate thus
The hermetically sealed breaker of sulfur hexafluoride gas-insulating.
The concrete scheme of the utility model is: a kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating, has and is filled with six
The closed case of sulfur fluoride gas is equipped with left and right three-phase entrance bushing and three-phase outlet casing tube positioned opposite on cabinet；Cabinet
It is provided with the close/open machine for controlling three-phase into and out of thread casing on-off, and is equipped in cabinet front for controlling divide-shut brake
The pull operation mechanism of the shaft motion of mechanism, three-phase are made of into and out of thread casing band skirt insulating sleeve and central conductor leader；Institute
Stating close/open machine includes being oppositely arranged on three-phase into and out of the contact set and arc-extinguish chamber on end on the inside of thread casing, contact set set
The front end of conducting rod loaded on entrance bushing, and the non-return step limited to contact set, contact set are equipped on conducting rod
Lateral wall be equipped with annular groove；It is equipped on main shaft and is in the vertically arranged three-phase shift fork in its central axes, every phase shift fork
Y-shaped structure, and finger positioned opposite is housed at two plug ends of shift fork, finger stretches in annular groove.
Be equipped with conductive contact on outside end in the utility model in three-phase into and out of thread casing, conductive contact with lead
Electric pole is connected；The conducting rod, contact set, arc-extinguish chamber and conductive contact are all made of T2 red copper and are made；Before the contact set
End is equipped with end socket, and end socket is equipped with one layer of copper-tungsten layer, and offers on end socket and connect along the central axes of contact set
Venthole.
It is fixed on main shaft described in the utility model with every phase into and out of the corresponding transfer block of thread casing, every phase shift fork
Non- swinging end be connected with transfer block.
Box inside described in the utility model is equipped with support frame, is set with zero on the intracorporal every phase entrance bushing of case
Sequence current transformer；It is equipped with several hanging rings on the upside of cabinet, is equipped with bracket on the downside of cabinet；It is additionally provided with inflating port on cabinet and lets out
Press mouth.
Compared with prior art, the utility model has the advantage that as follows:
(1) the utility model is compact-sized, small volume, due to using sulfur hexafluoride gas-insulating, compares vacuum extinction
Structure reduces a large amount of components, and internal labyrinth reduces 2/3rds, also reduces and reduce on the whole
Breaker；
(2) the utility model is due to using sulfur hexafluoride gas-insulating, thus its close/open machine realizes in structure
The breaking-closing operating that breaker is controlled by the reciprocating movement of contact set, compared to the transmission component structure using vacuum extinction
Speech, the utility model structure is relatively easy, and driving member is few, and failure rate is low；
(3) the utility model good insulation preformance due to using sulfur hexafluoride gas-insulating, and suitably pressurizes, so it is absolutely
Edge performance is more more reliable than vacuum extinction；
(4) the utility model uses the cabinet of hermetically sealed 304 stainless steel, and equipressure vacuumizes helium inspection, it is ensured that does not leak within 30 years
Gas, it is non-maintaining.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the left view structural representation of the utility model；
Fig. 3 is the A-A view of Fig. 1；
Fig. 4 is the schematic diagram of internal structure of the utility model；
Fig. 5 is the structural schematic diagram of shift fork in the utility model；
Fig. 6 is that contact covers the mounting structure schematic diagram on conducting rod in the utility model.
In figure: 1-cabinet, 2-entrance bushings, 3-outlet casing tubes, 4-main shafts, 5-insulating sleeves, 6-conducting rods,
7-contact sets, 8-arc-extinguish chambers, 9-non-return steps, 10-annular grooves, 11-shift forks, 12-fingers, 13-conductive contacts,
14-end sockets, 15-copper-tungsten layers, 16-ventholes, 17-transfer blocks, 18-support frames, 19-zero sequence current mutual inductances
Device, 20-hanging rings, 21-brackets, 22-inflating ports, 23-pressure relief openings, 24-pull operation mechanisms, 25-divide-shut brake direction boards, 26-
Divide-shut brake pointer.
Specific embodiment
Referring to Fig. 1-6, a kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating has close filled with sulfur hexafluoride gas
Closed box body 1 is equipped with left and right three-phase entrance bushing 2 and three-phase outlet casing tube 3 positioned opposite on cabinet 1；Cabinet 1 is built-in useful
In control three-phase into and out of thread casing 2, the close/open machine of 3 on-off, and equipped with for controlling close/open machine on front side of cabinet 1
Main shaft 4 act pull operation mechanism 24, three-phase into and out of thread casing 2,3 by band skirt insulating sleeve 5 and 6 groups of central conductor leader
At；The close/open machine includes being oppositely arranged on three-phase into and out of the contact set 7 and arc-extinguish chamber on thread casing 2,3 inside ends
8, contact set 7 is set in the front end of the conducting rod of entrance bushing 2, and is equipped on conducting rod and stops to what contact set 7 was limited
Return to Chinese Taiwan rank 9, and the lateral wall of contact set 7 is equipped with annular groove 10；It is equipped with and the vertically arranged three-phase in its central axes on main shaft 4
Shift fork 11, every Y-shaped structure of phase shift fork 11, and two fingers positioned opposite are housed at two plug ends of shift fork 11
12, finger 12 is radially into along contact set 7 into annular groove 10.
In three-phase into and out of being equipped with conductive contact 13, conductive contact 13 on the outside end of thread casing 2,3 in the present embodiment
It is connected with conducting rod 6；The conducting rod 6, contact set 7, arc-extinguish chamber 8 are all made of T2 red copper with conductive contact 13 and are made；It is described
The front end of contact set 7 is equipped with end socket 14, and end socket 14 is equipped with one layer of copper-tungsten layer 15, and offers on end socket 14 along touching
The venthole 16 that the central axes of headgear 7 connect.
It is fixed on main shaft 4 described in the present embodiment with every phase into and out of thread casing 2,3 corresponding transfer blocks 17, every phase
The non-swinging end of shift fork 11 is connected with transfer block 17.
It is equipped with support frame 18 on the inside of cabinet 1 described in the present embodiment, is set on every phase entrance bushing 2 in cabinet 1
There is zero sequence current mutual inductor 19；It is equipped with several hanging rings 20 on the upside of cabinet 1, is equipped with bracket 21 on the downside of cabinet 1；On cabinet 1 also
Equipped with inflating port 22 and pressure relief opening 23.
Divide-shut brake direction board 25 is equipped in the present embodiment on the shell of pull operation mechanism 24；The main shaft 4 is from pull operation mechanism 2
Front side stretch out, and its end be equipped with divide-shut brake pointer 26.
When the utility model at work, when being rotated clockwise under driving of the main shaft 4 in pull operation mechanism 24,4 band of main shaft
Dynamic fork is swung, to drive contact set 7 to move along the opposite arc-extinguish chamber 8 of conducting rod on entrance bushing 2, until connecting lead collar
Conducting rod movement on pipe 3, to realize the closing operation of breaker；
When rotating counterclockwise under driving of the main shaft 4 in pull operation mechanism 24, main shaft 4 drives fork to swing, to drive touching
Headgear 7 is moved along the conducting rod on entrance bushing 2 backwards to arc-extinguish chamber 8, until mutually separated with the conducting rod on outlet casing tube 3,
To realize the sub-switching operation of breaker.
Claims (4)
1. a kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating has the closed case filled with sulfur hexafluoride gas, cabinet
It is upper that left and right three-phase entrance bushing and three-phase outlet casing tube positioned opposite are housed；Cabinet is provided with for controlling three-phase into and out of line
The close/open machine of casing on-off, and the pull operation mechanism for controlling the shaft motion of close/open machine is housed in cabinet front,
Three-phase is made of into and out of thread casing band skirt insulating sleeve and central conductor leader；It is characterized in that: the close/open machine includes
Be oppositely arranged on three-phase into and out of on end on the inside of thread casing contact set and arc-extinguish chamber, contact set be set in leading for entrance bushing
The front end of electric pole, and the non-return step limited to contact set is equipped on conducting rod, the lateral wall of contact set is equipped with ring
Connected in star；On main shaft equipped with the vertically arranged three-phase shift fork in its central axes, every Y-shaped structure of phase shift fork, and dial
Two plug ends of fork are equipped with finger positioned opposite, and finger stretches in annular groove.
2. the hermetically sealed breaker of a kind of sulfur hexafluoride gas-insulating according to claim 1, it is characterized in that: three-phase into,
It is equipped with conductive contact on the outside end of outlet casing tube, conductive contact is connected with conducting rod；The conducting rod, contact set,
Arc-extinguish chamber is all made of T2 red copper with conductive contact and is made；The front end of the contact set is equipped with end socket, and end socket is equipped with one layer of copper tungsten
Alloy-layer, and the venthole to connect along the central axes of contact set is offered on end socket.
3. the hermetically sealed breaker of a kind of sulfur hexafluoride gas-insulating according to claim 1, it is characterized in that: on the main shaft
It is fixed with every phase into and out of the corresponding transfer block of thread casing, the non-swinging end of every phase shift fork is connected with transfer block.
4. the hermetically sealed breaker of a kind of sulfur hexafluoride gas-insulating according to claim 1 or 2 or 3, it is characterized in that: described
Box inside is equipped with support frame, is set with zero sequence current mutual inductor on the intracorporal every phase entrance bushing of case；It is set on the upside of cabinet
There are several hanging rings, is equipped with bracket on the downside of cabinet；Inflating port and pressure relief opening are additionally provided on cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952952.3U CN208938875U (en) | 2018-11-26 | 2018-11-26 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952952.3U CN208938875U (en) | 2018-11-26 | 2018-11-26 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208938875U true CN208938875U (en) | 2019-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821952952.3U Active CN208938875U (en) | 2018-11-26 | 2018-11-26 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
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| CN (1) | CN208938875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN111696817A (en) * | 2020-03-25 | 2020-09-22 | 天津平高智能电气有限公司 | High-voltage switch and shell thereof |
-
2018
- 2018-11-26 CN CN201821952952.3U patent/CN208938875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN111696817A (en) * | 2020-03-25 | 2020-09-22 | 天津平高智能电气有限公司 | High-voltage switch and shell thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sulfur hexafluoride gas insulated fully sealed circuit breaker Effective date of registration: 20220113 Granted publication date: 20190604 Pledgee: CITIC Bank Limited by Share Ltd. Huangshi branch Pledgor: HUBEI WANGAN TECHNOLOGY Co.,Ltd. Registration number: Y2022420000011 |