CN201247723Y - Maintenance-free and reinforced insulation solid sealed pole - Google Patents

Maintenance-free and reinforced insulation solid sealed pole Download PDF

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Publication number
CN201247723Y
CN201247723Y CNU2008201481935U CN200820148193U CN201247723Y CN 201247723 Y CN201247723 Y CN 201247723Y CN U2008201481935 U CNU2008201481935 U CN U2008201481935U CN 200820148193 U CN200820148193 U CN 200820148193U CN 201247723 Y CN201247723 Y CN 201247723Y
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CN
China
Prior art keywords
silica gel
epoxy resin
gel sealing
circuit breaker
sealing cover
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Expired - Fee Related
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CNU2008201481935U
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Chinese (zh)
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章传敏
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Individual
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Individual
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Priority to CNU2008201481935U priority Critical patent/CN201247723Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a maintenance-free and reinforced insulation fixing and sealing pole post of a vacuum circuit breaker, which comprises an epoxy resin shell, a vacuum arc extinguish chamber is arranged in the upper half part of the epoxy resin shell, a soft coating layer is arranged outside the vacuum arc extinguish chamber, the upper part of the vacuum arc extinguish chamber is connected with an upper connecting terminal, the lower part of the vacuum arc extinguish chamber is connected with a soft conduction band and an insulation operating rod, the soft conduction band is connected with a lower connecting terminal, an upper inserting piece is arranged in the insulation operating rod, a spring is arranged in the inner inserting piece, a lower inserting piece is arranged in the lower part of the insulation operating rod, an exposed screw rod of the lower inserting piece extends out of the bottom surface of the insulation operating rod, the lower part of the epoxy resin shell is fixed on an installing bent plate, a silica gel sealing sleeve is arranged between the lower part of the epoxy resin shell and the installing bent plate, the middle of the silica gel sealing sleeve is provided with a through hole, and the exposed screw rod passes through the through hole in the middle of the silica gel sealing sleeve. The utility model is suitable for various fixing and sealing pole posts, the inner insulating structure of the fixing and sealing pole post can be free from maintenance in long-period operation by adding the silica gel sealing sleeve without modifying the fixing and sealing pole post, and the integral insulating level of the fixing and sealing type vacuum circuit breaker can be improved.

Description

A kind of pole of non-maintaining and reinforced insulation
Technical field
The utility model belongs to the electrical engineering field, relates to the raising of the technical performance of solid sealing type vacuum circuit breaker.
Background technology
The panel switches cabinet of rated voltage 6.6-12-24-40.5kV is that China's high-voltage switch gear manufacturing industry output uses the widest power equipment of face at most.In this switch cubicle, use the vacuum type circuit breaker.Solid sealing type vacuum circuit breaker is a kind of improvement of carrying out and improves that it has improved the insulation level between the circuit breaker fracture on the basis of traditional vacuum circuit-breaker, and has increased the steadiness when circuit breaker plugs operation in switch cubicle.
But there are following two technological deficiencies in most solid sealing type vacuum circuit breakers that China produces:
The lower cavity of 1 pole is open in the atmosphere, dust in the operational environment, moisture and corrosive gas, small worm etc. can both enter this cavity even, pollute insulating component wherein, the insulating capacity relatively of circuit breaker is descended, cause Power System Shortcuts easily. so the complete machine insulation level of solid sealing type vacuum circuit breaker does not increase than traditional product.
2 solid sealing type vacuum circuit breakers must have interchangeability with traditional vacuum circuit-breaker, can not improve insulation level by the way of increasing circuit breaker.And when product was used in the high altitude localities, its insulation level must improve.For example when 3000 meters height above sea level, its rated insulation level should be brought up to 1.278 times of former rated value.
The content of invention
The utility model is intended to overcome above-mentioned technological deficiency, provides a kind of and can solve non-maintaining problem and can improve the pole of insulation level relatively simultaneously again, and bring reliability and convenience in the use for power consumer.
The utility model is to realize like this, a kind of solid sealed pole of vacuum circuit breaker of non-maintaining and reinforced insulation, comprise epoxy resin housing 1, epoxy resin housing 1 first half internally provided with vacuum arc control device 2, vacuum interrupter 2 outsides are Soft Roll layers 5, vacuum interrupter 2 tops connect upper connecting terminal 3, vacuum interrupter 2 bottoms connect soft conductive strips 6 and insulating bar 7, soft conductive strips 6 connect lower connecting terminal 4, the insulating bar 7 built-in inserts 8 of going up, last inserts 8 built-in springs 10, insulating bar deposits inserts 9 in 7 bottoms, following inserts 9 expose the bottom surface that screw rod 13 stretches out insulating bar 7, epoxy resin housing 1 bottom is fixed on installs on the bent plate 12, between epoxy resin housing 1 bottom and the installation bent plate 12, silica gel sealing cover 11 is set, silica gel sealing cover 11 centres are through holes, expose the through holes that screw rod 13 passes silica gel sealing cover 11 centres.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation is characterized in that: described silica gel sealing cover 11 is provided with shirt rim 14 corresponding to vacuum circuit-breaker turnover line side.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation is characterized in that: described silica gel sealing cover 11 upwards be provided with epoxy resin housing 1 bottom coupling pull out mouthfuls 15.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation is characterized in that: described silica gel sealing is a bellows-shaped around overlapping 11 intermediate throughholes.
Therefore after the lower cavity of pole was closed, the insulation parts of its inside can not be subjected to environmental pollution, and in product long-time running process, product has maintenance-free performance, did not need the user to the maintenance of disintegrating of fixed sealing type circuit breaker.
In order to improve the insulation level relatively of pole, the utility model has all been taked the measure of reinforced insulation to its 4 discharge approach.
Discharge approach A: high-tension electricity discharges to the installation bent plate of ground connection by way of the creepage back attempt of the full skirt of pole outside in circuit breaker turnover line side.The creepage distance of this approach is the shortest, is subject to environmental pollution simultaneously, is the pole the weakest link that relatively insulate.After having installed silica gel sealing cover additional, prolonged creepage distance, and between the installation bent plate of silica gel sealing cover and metal, increased and be difficult to creepage pure air gap, the ability of the anti-puncture of silica gel is strong simultaneously, has therefore strengthened insulating capacity.See accompanying drawing 3.
Discharge approach B: high-tension electricity discharges to mounting screw by way of the creepage back attempt of the full skirt of pole inside.Around mounting screw epoxy resin layer is arranged because the garden shape of pole is propped up on the platform, compacted between this resin bed and the rubber, the air between them is excluded.Epoxy resin and the silicon rubber all insulating capacity than air are strong, have therefore strengthened insulating capacity.See accompanying drawing 4.
Discharge approach C: high-tension electricity is by way of the earth potential discharge of the full skirt of insulating bar creepage back attempt to its lower end.Owing to epoxy resin layer is also arranged on the bottom face of insulating bar, compacted between it and the rubber, the air between them is excluded, and has therefore also strengthened insulating capacity.See accompanying drawing 3.
Discharge approach D: for the product of part producer, the inserts (it is to be used to install pole) in the epoxy resin poured body of pole exposes, and its top does not have epoxy resin by multiple layer.High-tension electricity discharges (with discharging the approach category-A seemingly) to this inserts by way of the creepage back attempt of the full skirt of pole outside, and this moment, available insulation screw added that silicone gasket is screwed on the inserts, the same creepage ability that resists that formed owing to silicagel pad is compacted.
As mentioned above, the full skirt of pole outside still can be subjected to environmental pollution, does not have maintenance-free performance.But because above-mentioned panel switches cabinet is not the GIS series products, their insulation system is the air insulation of exposing, and presses annual must the maintenance once of regulation of operation power rules.The fixed sealing type circuit breaker is the most complicated element of most critical wherein, as long as it is not needed to take apart maintenance and test again, has just simplified the annual test of panel switches cabinets widely, and the dust of wiping on the full skirt of pole outside is a thing that is easy to do.
Description of drawings
Fig. 1 is that the utility model closing position cuts open and releases structural representation;
Fig. 2 is discharge approach A and C schematic diagram;
Fig. 3 is a discharge approach B schematic diagram.
Embodiment
As shown in Figure 1, a kind of solid sealed pole of vacuum circuit breaker of non-maintaining and reinforced insulation, comprise epoxy resin housing 1, epoxy resin housing 1 first half internally provided with vacuum arc control device 2, vacuum interrupter 2 outsides are Soft Roll layers 5, vacuum interrupter 2 tops connect upper connecting terminal 3, vacuum interrupter 2 bottoms connect soft conductive strips 6 and insulating bar 7, soft conductive strips 6 connect lower connecting terminal 4, the insulating bar 7 built-in inserts 8 of going up, last inserts 8 built-in springs 10, insulating bar deposits inserts 9 in 7 bottoms, following inserts 9 expose the bottom surface that screw rod 13 stretches out insulating bar 7, epoxy resin housing 1 bottom is fixed on installs on the bent plate 12, it is a part of spring operating mechanism that bent plate 12 is installed, between epoxy resin housing 1 bottom and the installation bent plate 12, silica gel sealing cover 11 is set, and is through hole in the middle of the silica gel sealing cover 11, exposes screw rod 13 and passes through holes in the middle of the silica gel sealing cover 11.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation, described silica gel sealing cover 11 is provided with shirt rim 14 corresponding to vacuum circuit-breaker turnover line side.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation, described silica gel sealing cover 11 upwards be provided with epoxy resin housing 1 bottom coupling pull out mouthfuls 15.
The solid sealed pole of vacuum circuit breaker of described non-maintaining and reinforced insulation is characterized in that: described silica gel sealing is a bellows-shaped around overlapping 11 intermediate throughholes.
The structure structure of the pole that the whole nation numerous switch manufacturer produces is identical basically.The utility model does not make an amendment to the pole of producer, and insulating bar is not revised mfg. moulding die yet, and its screw rod that exposes of inserts down only extends.Only revise a kind of very little machined piece in the pole in addition.
The assembly technology of product is identical with original product with flow process.Pack in pole behind the insulating bar, load onto the described rubber sealing boot of the utility model, fastening nut gets final product.Do not need viscose glue, do not need to adjust.Very simple and convenient.
The utility model has practicality widely, both has been applicable to the product that manufacturer produces at present, also is applicable to the transformation that has moved product.It is cheap for manufacturing cost that silica gel sealing overlaps, and but can produce very big social benefit and economic benefit.

Claims (4)

1, a kind of solid sealed pole of vacuum circuit breaker of non-maintaining and reinforced insulation, comprise epoxy resin housing (1), epoxy resin housing (1) first half internally provided with vacuum arc control device (2), vacuum interrupter (2) outside is Soft Roll layer (5), vacuum interrupter (2) top connects upper connecting terminal (3), vacuum interrupter (2) bottom connects soft conductive strips (6) and insulating bar (7), soft conductive strips (6) connect lower connecting terminal (4), the built-in inserts (8) of going up of insulating bar (7), the built-in spring of last inserts (8) (10), insulating bar (7) deposits inserts (9) in the bottom, following inserts (9) expose the bottom surface that screw rod (13) stretches out insulating bar (7), epoxy resin housing (1) bottom is fixed on installs on the bent plate (12), it is characterized in that: between epoxy resin housing (1) bottom and the installation bent plate (12), silica gel sealing cover (11) is set, and is through hole in the middle of the silica gel sealing cover (11), exposes screw rod (13) and passes the middle through hole of silica gel sealing cover (11).
2, the solid sealed pole of vacuum circuit breaker of non-maintaining according to claim 1 and reinforced insulation is characterized in that: described silica gel sealing cover (11) is provided with shirt rim (14) corresponding to vacuum circuit-breaker turnover line side.
3, as the solid sealed pole of vacuum circuit breaker of non-maintaining as described in the claim 2 and reinforced insulation, it is characterized in that: described silica gel sealing cover (11) upwards is provided with pull out mouthful (15) with epoxy resin housing (1) bottom coupling.
4, as the solid sealed pole of vacuum circuit breaker of non-maintaining as described in claim 2 or 3 and reinforced insulation, it is characterized in that: around described silica gel sealing cover (11) intermediate throughholes is bellows-shaped.
CNU2008201481935U 2008-07-24 2008-07-24 Maintenance-free and reinforced insulation solid sealed pole Expired - Fee Related CN201247723Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201481935U CN201247723Y (en) 2008-07-24 2008-07-24 Maintenance-free and reinforced insulation solid sealed pole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201481935U CN201247723Y (en) 2008-07-24 2008-07-24 Maintenance-free and reinforced insulation solid sealed pole

Publications (1)

Publication Number Publication Date
CN201247723Y true CN201247723Y (en) 2009-05-27

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CNU2008201481935U Expired - Fee Related CN201247723Y (en) 2008-07-24 2008-07-24 Maintenance-free and reinforced insulation solid sealed pole

Country Status (1)

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CN (1) CN201247723Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101826413B (en) * 2010-05-14 2012-12-12 无锡市凯驰电气有限公司 High-pressure vacuum contactor
CN103515137A (en) * 2012-06-27 2014-01-15 厦门市恒源新电力设备有限公司 Vacuum switch-fuse combined electrical pole column
CN103531397A (en) * 2012-07-06 2014-01-22 厦门市恒源新电力设备有限公司 Solid-sealed polar post and manufacturing method thereof
CN104051181A (en) * 2014-06-18 2014-09-17 上海钧昶机电设备有限公司 Highland type solid-sealed polar pole
CN104538240A (en) * 2014-12-31 2015-04-22 宁夏力成电气集团有限公司 Embedded pole of plateau vacuum circuit breaker
CN112005328A (en) * 2018-04-25 2020-11-27 泰科电子英国有限公司 Electromechanical actuator and High Voltage (HV) switch
CN112635235A (en) * 2019-09-24 2021-04-09 盈能科技(苏州)有限公司 Aerify cubical switchboard with solid utmost point post that seals
CN115662830A (en) * 2022-10-26 2023-01-31 西电宝鸡电气有限公司 Outdoor vacuum circuit breaker with high protection level

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101826413B (en) * 2010-05-14 2012-12-12 无锡市凯驰电气有限公司 High-pressure vacuum contactor
CN103515137A (en) * 2012-06-27 2014-01-15 厦门市恒源新电力设备有限公司 Vacuum switch-fuse combined electrical pole column
CN103531397A (en) * 2012-07-06 2014-01-22 厦门市恒源新电力设备有限公司 Solid-sealed polar post and manufacturing method thereof
CN103531397B (en) * 2012-07-06 2016-12-21 厦门市恒源新电力设备有限公司 A kind of pole and manufacture method thereof
CN104051181A (en) * 2014-06-18 2014-09-17 上海钧昶机电设备有限公司 Highland type solid-sealed polar pole
CN104051181B (en) * 2014-06-18 2016-08-17 上海钧昶机电设备有限公司 A kind of plateau type pole
CN104538240A (en) * 2014-12-31 2015-04-22 宁夏力成电气集团有限公司 Embedded pole of plateau vacuum circuit breaker
CN112005328A (en) * 2018-04-25 2020-11-27 泰科电子英国有限公司 Electromechanical actuator and High Voltage (HV) switch
US11282660B2 (en) 2018-04-25 2022-03-22 Tyco Electronics Uk Ltd. Electromechanical actuator and high voltage (HV) switch
CN112635235A (en) * 2019-09-24 2021-04-09 盈能科技(苏州)有限公司 Aerify cubical switchboard with solid utmost point post that seals
CN115662830A (en) * 2022-10-26 2023-01-31 西电宝鸡电气有限公司 Outdoor vacuum circuit breaker with high protection level
CN115662830B (en) * 2022-10-26 2024-02-27 西电宝鸡电气有限公司 Outdoor vacuum circuit breaker with high protection level

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090527

Termination date: 20110724