CN204045469U - A kind of outdoor low voltage isolating switch combination unit - Google Patents
A kind of outdoor low voltage isolating switch combination unit Download PDFInfo
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- CN204045469U CN204045469U CN201420442932.7U CN201420442932U CN204045469U CN 204045469 U CN204045469 U CN 204045469U CN 201420442932 U CN201420442932 U CN 201420442932U CN 204045469 U CN204045469 U CN 204045469U
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Abstract
A kind of outdoor low voltage isolating switch combination unit, be made up of heterogeneous low voltage isolation switch elementary cell, described low voltage isolation switch elementary cell comprises pedestal, disconnecting link contact, arc-extinction device, fuse protection structure and arrester device, described disconnecting link contact bottom arranges stake fixed contact and lower stake fixed contact, disconnecting link contact two ends are fixed on pedestal by two fixed contacts, arc-extinction device is fixed on bottom stake fixed contact, base ends is fixed with fuse protection structure, fuse protection structure upper end is fixedly connected with lower stake fixed contact, arrester device is arranged on fuse protection structure bottom, and arrester device is fixed on base ends.Described fuse protection structure comprises safety plate, hardware and porcelain vase; Arrester device is CT type arrester device, comprises current transformer, lightning arrester and installed part.The utility model effectively improves the useful life of isolating switch, is effectively isolated by outdoor low voltage, and reliability is high, and structure is simple, and operation maintenance is convenient, is applicable to outdoor operation.
Description
Technical field
The utility model relates to isolating switch technology, particularly relates to a kind of outdoor low voltage isolating switch combination unit.
Background technology
Low voltage outdoor isolating switch combined electrical apparatus, in low pressure Urban Net Construction and transformation, is widely used in the low-voltage power supply system of distribution transformer.Low voltage outdoor isolating switch combined electrical apparatus is when there is some fault in actual use procedure, and needing to have a power failure process and after carrying out safety measure, can go up change stand and carry out troubleshooting.
Common low voltage outdoor isolating switch fuse protection mechanism many employings fuse is directly connected with disconnecting link contact, and fuse by supporting construction or fixing, does not exist safety problem; And this low voltage isolation switch is when overhaul of the equipments, between repair apparatus and charging equipment, form obvious cut-off point, ensure the personal safety of maintenance workmen.
Such as 201210007742.8 low-pressure fusing disconnecting switchs disclose following technical scheme, comprise base (1), silicon rubber insulator pillar (2), the knife switch be arranged on silicon rubber insulator pillar (2), fuse-link (10) and terminal block (11), knife switch comprises moving contact (3), fixed contact (9), two shoe brake knife plates (4), draw ring (6) and compression spring (13), described moving contact (3) side is provided with the recessed tactile face (17) of moving contact, and/or is provided with the recessed tactile face (18) of annular in fixed contact (9) side; The contact-making surface that described plug-in strip plate (4) contacts with moving contact (3) is provided with the convex tactile face (16) in front end, and the contact-making surface contacted with fixed contact (9) is provided with circular convex tactile face (15); Also comprise flash guard.
201410006817.X, a kind of outdoor low-tension fuse type isolation switch discloses following technical characteristic, comprise: binding post, fuse-link, fixed contact, operating grip, insulator, base plate, wherein, fuse-link device is in fuse-link carrier member, it is characterized in that: base plate is fixedly connected with left binding post by left insulator, swinging mounting, left fixed contact, base plate is fixedly connected with right binding post by right insulator, right fixed contact, described fuse-link is blade type contact fuse-link, the below of right fixed contact is provided with metal grating arc-extinguishing chamber, operating grip is remained on closing position by the closing holding mechanism arranged, to leave behind fuse-link carrier member, fuse-link can be drawn out as the moving contact of isolating switch together, obvious visible air insulated fracture is formed at mains side and load-side.
But above two kinds first file and the application's problem to be solved and structure all not identical, how to research and develop a kind of low voltage outdoor isolating switch combined electrical apparatus, and adapt to outdoor low voltage use and become the technical problem that the art personnel constantly explore and study.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of outdoor low voltage isolating switch combination unit, and structure is simple, and safe and reliable.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of outdoor low voltage isolating switch combination unit, be made up of heterogeneous low voltage isolation switch elementary cell, described low voltage isolation switch elementary cell comprises pedestal, disconnecting link contact, arc-extinction device, fuse protection structure and arrester device, described disconnecting link contact bottom arranges stake fixed contact and lower stake fixed contact, disconnecting link contact two ends are fixed on pedestal by two fixed contacts, described arc-extinction device is fixed on bottom stake fixed contact, base ends is fixed with fuse protection structure, described fuse protection structure upper end is fixedly connected with lower stake fixed contact, described arrester device is arranged on fuse protection structure bottom, and arrester device is fixed on base ends.
Preferably, described fuse protection structure comprises safety plate, hardware and porcelain vase; Described porcelain vase is fixed on pedestal, and described hardware is fixed on the upper end of porcelain vase; One end of described safety plate is connected with hardware, and the other end is connected with lower stake fixed contact.
Preferably, described safety plate and plane-parallel are arranged.
Preferably, described hardware is copper component.
Preferably, described arrester device is CT type arrester device, comprises current transformer, lightning arrester and installed part, and described current transformer and lightning arrester are fixed on described installed part respectively by bolt.
Preferably, described pedestal and between upper stake fixed contact and lower stake fixed contact, a porcelain vase is set respectively.
Preferably, described disconnecting link contact comprises switch and fixing arm-tie; Fixing arm-tie is fixed between two panels switch; The two ends of described two panels switch are bolted, and described bolt are set with a spring, and spring is fixed by nut and bolt.
Preferably, the lower end of described disconnecting link contact is provided with the sheet that stops dropping, described in the sheet that stops dropping be fixed on the side of disconnecting link contact bottom.
Preferably, described low voltage isolation switch elementary cell at least comprises an arc-extinction device, and arc-extinction device comprises at least two carbon brush assemblies.
Preferably, described low voltage isolation switch elementary cell at least comprises an arrester device and a fuse protection structure.
Compared with prior art; the beneficial effects of the utility model are: by arranging heterogeneous low voltage isolation switch elementary cell; and low voltage isolation switch elementary cell comprises pedestal, disconnecting link contact, arc-extinction device, fuse protection structure and arrester device; effectively can improve the useful life of isolating switch, effectively isolated by outdoor low voltage, reliability is high; structure is simple; operation maintenance is convenient, is applicable to outdoor operation, economical and effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side-looking structural representation of the present utility model;
Fig. 3 is disconnecting link contact perspective view of the present utility model;
Fig. 4 is disconnecting link contact plan structure schematic diagram of the present utility model;
Fig. 5 is switch structural representation of the present utility model.
Embodiment
Be described in detail, to be interpretated more in-depth technical characteristic of the present utility model and advantage with reference to accompanying drawing below in conjunction with embodiment.
As shown in Figure 1, 2; a kind of outdoor low voltage isolating switch combination unit; be made up of heterogeneous low voltage isolation switch elementary cell; the number of phases is set as required; such as shown in Fig. 1, comprise 3 phase low voltage isolation switch elementary cells, certainly; the utility model is not limited to this, arranges heterogeneous also in protection scope of the present invention as required.
Described low voltage isolation switch elementary cell comprises pedestal 2, disconnecting link contact 19, arc-extinction device 16, fuse protection structure 10 and arrester device 8; described disconnecting link contact 19 bottom arranges stake fixed contact 3 and lower stake fixed contact 14; disconnecting link contact 19 two ends are fixed on pedestal 2 by two fixed contacts; and upper stake fixed contact 3 and lower stake fixed contact 14 arrange projection respectively, disconnecting link contact 19 is further fixedly connected with lower stake fixed contact 14 with upper stake fixed contact 3 by projection.Described pedestal 2 and between upper stake fixed contact 3 and lower stake fixed contact 14, a porcelain vase 4 is set respectively.Two described porcelain vases 4 and two upper pile fixed contacts 3, lower stake fixed contacts 14 are group between two, are fixed on successively on described pedestal 2, and respectively at the two ends of described pedestal 2.
As shown in Figure 1, 2; described arc-extinction device 16 is fixed on bottom stake fixed contact 3; pedestal 2 end is fixed with fuse protection structure 10; described fuse protection structure 10 upper end is fixedly connected with lower stake fixed contact 14; described arrester device 8 is arranged on fuse protection structure 10 bottom, and arrester device 8 is fixed on base ends.An angle bar 1 is also set at the bottom end of pedestal 2, for fixing low voltage isolation switch elementary cell.
Preferably, described fuse protection structure 10 comprises safety plate 13, hardware 11 and porcelain vase 9; Described porcelain vase 9 is fixed on pedestal 2, and as shown in Figure 1, 2, porcelain vase 9 is positioned at the one end away from described disconnecting link contact 19.Described hardware 11 is fixed on the upper end of porcelain vase 9; One end of described safety plate 13 is connected with hardware 11, and the other end is connected with lower stake fixed contact 14.Described safety plate 13 is arranged with plane-parallel.The utility model makes described safety plate 13 be in level, is convenient to change described safety plate 13.In the preferred embodiment, described hardware 11 is preferably copper component.But the utility model is not limited to this, other hardwares, such as iron aluminium etc. are all in protection range of the present utility model.
As shown in Figure 1, 2, described arrester device 8 is CT type arrester device, comprises current transformer 12, lightning arrester 6 and installed part 5, and described current transformer 12 and lightning arrester 6 are fixed on described installed part 5 respectively by bolt.In order to the T-shaped arrester device of better fixation of C, installed part 5 is fixedly connected with pedestal 2 by solder technology.
As shown in Figure 3,4, described disconnecting link contact 19 comprises switch 7 and fixing arm-tie 17; Fixing arm-tie 17 is fixed between two panels switch 7; As shown in Figure 5 in the preferred embodiment, the sectional view of described switch 7 is " ［ " shape.And can see in Figure 5, the side of two panels switch 7 arranges " O " type groove, and side arranges similar spcial character " ◎ " type groove in addition; And two panels switch 7 is bolted, described bolt is set with a spring 18, spring 18 is fixed by nut and bolt.Be specially, be set with a spring 18 after a bolt-through " O " type groove, then fixed further by nut; Be set with a spring 18 after another bolt-through " ◎ " type groove, then fixed further by nut.The utility model is not limited to bolt fixing spring 18, also other can realize the device of locating fixed function with alignment pin etc.
Lower end and the lower stake fixed contact 14 of switch 7 are bolted.In specific works, when described disconnecting link contact 19 coordinates with upper stake fixed contact 3 and lower stake fixed contact 14, the side that described disconnecting link contact 19 is provided with " O " type groove adjusts its position automatically, makes it fit tightly.The lower end of described disconnecting link contact 19 is provided with the sheet 15 that stops dropping, described in the sheet 15 that stops dropping be fixed on the side of disconnecting link contact 19 bottom.
As shown in Figure 1, 2, described low voltage isolation switch elementary cell at least comprises an arc-extinction device 16, and arc-extinction device 16 comprises at least two carbon brush assemblies.In order to reach good extinguishing arc effect, can arrange as required.The operation principle of carbon brush assembly and effect: when circuit has electricity, disconnecting switch operation, disconnecting link contact 19 and upper stake fixed contact 3 separate moment, produce electric arc, are fixed on the own shell fragment knee springing of two carbon brush assemblies in the arc-extinction device 16 bottom stake fixed contact 3.Traction electric arc, on the carbon brush assembly of two in arc-extinction device 16, at this moment becomes striking point with the graphite of two shell fragment parcels of carbon brush assembly own; When disconnecting link contact 19 separates gradually with fixed contact 3, two carbon brush assemblies are pressed from off-state to contact, again split movement track, and with the graphite contact of two shell fragments parcels of carbon brush assembly own, electric arc disappears when graphite is from off-state to contact movement.Like this by two carbon brush assemblies in arc-extinction device 16, by electric arc from being drawn to arc extinguishing process, reaching and protecting fixed contact 3 and disconnecting link contact 19 not by the object of electrical arc erosion.
Preferably, described low voltage isolation switch elementary cell at least comprises arrester device 8 and a fuse protection structure 10.
In the present embodiment; only be fixed with fuse protection structure 10 and CT type arrester device 8 in the side of described pedestal 2; and in fact, user can select to arrange described fuse protection structure 10 and CT type arrester device 8 in any one or both sides of described pedestal 2 according to self needing.
Carry out clear, complete description by the technical scheme in above embodiment to the utility model, obviously described embodiment is the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Claims (10)
1. an outdoor low voltage isolating switch combination unit, be made up of heterogeneous low voltage isolation switch elementary cell, it is characterized in that: described low voltage isolation switch elementary cell comprises pedestal (2), disconnecting link contact (19), arc-extinction device (16), fuse protection structure (10) and arrester device (8), described disconnecting link contact (19) bottom arranges stake fixed contact (3) and lower stake fixed contact (14), disconnecting link contact (19) two ends are fixed on pedestal (2) by two fixed contacts, described arc-extinction device (16) is fixed on stake fixed contact (3) bottom, pedestal (2) end is fixed with fuse protection structure (10), described fuse protection structure (10) upper end is fixedly connected with lower stake fixed contact (14), described arrester device (8) is arranged on fuse protection structure (10) bottom, and arrester device (8) is fixed on base ends.
2. outdoor low voltage isolating switch combination unit according to claim 1, is characterized in that: described fuse protection structure (10) comprises safety plate (13), hardware (11) and porcelain vase (9); Described porcelain vase (9) is fixed on pedestal (2), and described hardware (11) is fixed on the upper end of porcelain vase (9); One end of described safety plate (13) is connected with hardware (11), and the other end is connected with lower stake fixed contact (14).
3. outdoor low voltage isolating switch combination unit according to claim 2, is characterized in that: described safety plate (13) and plane-parallel are arranged.
4. outdoor low voltage isolating switch combination unit according to claim 2, is characterized in that: described hardware (11) is copper component.
5. outdoor low voltage isolating switch combination unit according to claim 1, it is characterized in that: described arrester device (8) is CT type arrester device, comprise current transformer (12), lightning arrester (6) and installed part (5), described current transformer (12) and lightning arrester (6) are fixed on described installed part (5) respectively by bolt.
6. outdoor low voltage isolating switch combination unit according to claim 1, is characterized in that: described pedestal (2) and arrange a porcelain vase (4) respectively between upper stake fixed contact (3) and lower stake fixed contact (14).
7. outdoor low voltage isolating switch combination unit according to claim 1, is characterized in that: described disconnecting link contact (19) comprises switch (7) and fixing arm-tie (17); Fixing arm-tie (17) is fixed between two panels switch (7); The two ends of described two panels switch (7) are bolted, and described bolt are set with a spring (18), and spring (18) is fixed by nut and bolt.
8. outdoor low voltage isolating switch combination unit according to claim 7, is characterized in that: the lower end of described disconnecting link contact (19) is provided with the sheet that stops dropping (15), described in the sheet (15) that stops dropping be fixed on the side of disconnecting link contact (19) bottom.
9. outdoor low voltage isolating switch combination unit according to claim 1, it is characterized in that: described low voltage isolation switch elementary cell at least comprises an arc-extinction device (16), and arc-extinction device (16) comprises at least two carbon brush assemblies.
10. outdoor low voltage isolating switch combination unit according to claim 1, is characterized in that: described low voltage isolation switch elementary cell at least comprises an arrester device (8) and a fuse protection structure (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442932.7U CN204045469U (en) | 2014-08-07 | 2014-08-07 | A kind of outdoor low voltage isolating switch combination unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442932.7U CN204045469U (en) | 2014-08-07 | 2014-08-07 | A kind of outdoor low voltage isolating switch combination unit |
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| CN204045469U true CN204045469U (en) | 2014-12-24 |
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| CN201420442932.7U Active CN204045469U (en) | 2014-08-07 | 2014-08-07 | A kind of outdoor low voltage isolating switch combination unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900442A (en) * | 2015-05-29 | 2015-09-09 | 江山市电器技术开发有限公司 | Lightning arrester-combined grounding switch and method thereof |
| CN108305812A (en) * | 2018-02-01 | 2018-07-20 | 贵州电网有限责任公司 | The novel dismountable low pressure isolation switch for changing safety plate |
| CN108550491A (en) * | 2018-06-04 | 2018-09-18 | 广东电网有限责任公司 | A kind of isolation switch earthing or grounding means |
| CN108807107A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Fuse cutout and electrical equipment |
| CN108987169A (en) * | 2018-09-04 | 2018-12-11 | 广东电网有限责任公司 | Fuse cutout |
| CN109767948A (en) * | 2017-11-09 | 2019-05-17 | 国网辽宁省电力有限公司营口供电公司 | 10kV distribution transformer low-voltage module formula fuse device |
-
2014
- 2014-08-07 CN CN201420442932.7U patent/CN204045469U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900442A (en) * | 2015-05-29 | 2015-09-09 | 江山市电器技术开发有限公司 | Lightning arrester-combined grounding switch and method thereof |
| CN104900442B (en) * | 2015-05-29 | 2017-03-01 | 江山市电器技术开发有限公司 | A kind of earthed switch being combined with lightning arrester and its method |
| CN109767948A (en) * | 2017-11-09 | 2019-05-17 | 国网辽宁省电力有限公司营口供电公司 | 10kV distribution transformer low-voltage module formula fuse device |
| CN108305812A (en) * | 2018-02-01 | 2018-07-20 | 贵州电网有限责任公司 | The novel dismountable low pressure isolation switch for changing safety plate |
| CN108550491A (en) * | 2018-06-04 | 2018-09-18 | 广东电网有限责任公司 | A kind of isolation switch earthing or grounding means |
| CN108807107A (en) * | 2018-09-04 | 2018-11-13 | 广东电网有限责任公司 | Fuse cutout and electrical equipment |
| CN108987169A (en) * | 2018-09-04 | 2018-12-11 | 广东电网有限责任公司 | Fuse cutout |
| CN108807107B (en) * | 2018-09-04 | 2024-01-09 | 广东电网有限责任公司 | Fuse switch and electrical equipment |
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Effective date of registration: 20210915 Address after: 511500 first floor, building I, No. 163, North 1st Road, Qingcheng bridge, Qingyuan City, Guangdong Province Patentee after: Qingyuan Kaiyu Engineering Supervision Co.,Ltd. Address before: 511517 No.7 community, Qingyuan high tech Development Zone, Guangdong Province Patentee before: GUANGDONG BEIJIANG SWITCH FACTORY Co.,Ltd. |