CN104821263A - Universal drop-out fusion tube top structure - Google Patents
Universal drop-out fusion tube top structure Download PDFInfo
- Publication number
- CN104821263A CN104821263A CN201510186474.4A CN201510186474A CN104821263A CN 104821263 A CN104821263 A CN 104821263A CN 201510186474 A CN201510186474 A CN 201510186474A CN 104821263 A CN104821263 A CN 104821263A
- Authority
- CN
- China
- Prior art keywords
- fusion tube
- moving contact
- ferrule
- upper moving
- operation ring
- Prior art date
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
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- Fuses (AREA)
Abstract
A universal drop-out fusion tube top structure mainly comprises an operation ring ferrule, an upper moving contact ferrule and a top sleeve head which sleeve the upper end of a fusion tube in sequence. A wedge-shaped contact body and a bar-shaped contact body are connected on the upper moving contact ferrule, the operation ring ferrule and the upper moving contact ferrule are provided with pin holes respectively, and holding pins capable of adjustably fixing the operation ring ferrule and the upper moving contact ferrule in corresponding positions of the upper end of the fusion tube are configured on the pin holes respectively. The universal drop-out fusion tube top structure has the characteristics of having a reasonable and compact structure, being convenient to use and install, having good reliability, being suitable for being matched with various fuse pedestals for use, reducing reserves of spares for emergency maintenance, and reducing the duration of emergency maintenance of a power failure.
Description
Technical field
What the present invention relates to is a kind of general drop type fusion tube understructure, belongs to distribution and makes somebody a mere figurehead electric power instrument technical field.
Background technology
Fuse switch is 10(20) kV distribution line branch line and the most frequently used a kind of protective switch of the short circuit of distribution transformer; it have economy, easy to operate, adapt to the features such as outdoor environment is strong, be widely used in 10(20) kV distribution line and distribution transformer primary side are as protection and carry out equipment throwing, cut the use of operation.Fuse switch is arranged on 10(20) on kV distribution line branch line, can power failure range be reduced, because it has an obvious cut-off point, possess the function of isolating switch, create a safety work environment to maintenance section circuit and equipment, add the sense of security of maintainer.Be arranged on distribution transformer, can as the main protection of distribution transformer, so, at 10(20) obtain in kV distribution line and distribution transformer universal.
In prior art, fuse switch is primarily of insulator foot 101, dynamic/static contact 102, cartridge fuse 103 3 part composition, as shown in Figure 1, wherein insulator foot 101 comprises and is fastened on silver-plated lower copperhead 105 bottom cartridge fuse 103 by holding pin 104, this lower copperhead 105 is connected to a ferrule-based fittings 107 by a rotational pin 106, this ferrule-based fittings 107 connects with a fuse pressing plate 108, is interiorly provided with spring 109 by bolt; The upper end of cartridge fuse 103 is socketed with top copper nut 110, and below is provided with operation ring 112 by holding pin 111;
The moving contact at cartridge fuse two ends relies on fuse (melt) to fasten, and after upper moving contact being pushed " duckbilled " projection, the upper static contact that phosphorus bronze sheet etc. are made heads on moving contact, so cartridge fuse to be stuck in " duckbilled " securely inner.When short circuit current is by fuse failure, produce electric arc, the vulcanized fiber tube of cartridge fuse liner produces a large amount of gas because being shut cartridge fuse upper end under arcing, and gas sprays to lower end, blows out electric arc.Due to fuse failure, the upper lower moving contact of cartridge fuse loses the fastening force of fuse, and under the effect of cartridge fuse self gravitation and upper and lower fixed contact spring leaf, cartridge fuse falls rapidly, and circuit is disconnected, excision faulty section circuit or faulty equipment.
Existing fuse switch has the fuse protection function of excess load because of it, and easy for installation, and flexible operation is generally adopted by middle pressure network frame.But because Commodity Centralism Purchase bid winner is different, the fuse switch model now, pressure network frame adopted is more, generally reach 6 kinds, but though the pattern of the fuse switch fusion tube of these different models is similar all each different, differing in upper moving contact (being also referred to as top structure) size shape and position cannot be general; The particularly old model of early application on rack, manufacturer's fuse switch that regenerative ratio is not of the same type and standby redundancy, cause the shortage of repairing goods and materials, single fusion tube burns out and will relate to upper level power supply of stopping using, expand power failure range, extend repairing duration, affect greatly to good service.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and a kind of rational in infrastructure, compact, easy to install and use, good reliability is provided, can be applicable to various fuse supports the use, reduce the deposit of repairing spare unit, reduce the general drop type fusion tube top structure of power failure repairing duration.
The object of the invention is to have come by following technical solution, one of the present invention general drop type fusion tube top structure, it is pullover primarily of being socketed in the operation ring set circle of fusion tube upper end, upper moving contact lasso and top respectively successively, and on described upper moving contact lasso, disjunctor has wedge contact body and clavate contact body respectively.
Described operation ring set circle and upper moving contact lasso offer pin-and-hole respectively, it is configured with separately the holding pin that operation ring set circle and upper moving contact lasso adjustably can be fixed on relevant position, fusion tube upper end.
The present invention has rational in infrastructure, compact, easy to install and use, good reliability, can be applicable to various fuse pedestal and support the use, and reduces the deposit of repairing spare unit, reduces the features such as power failure repairing duration.
Accompanying drawing explanation
Fig. 1 is existing fuse switch structural representation.
Fig. 2 is the top structure schematic diagram of fuse switch of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 2, one of the present invention general drop type fusion tube top structure, it is primarily of being socketed in the operation ring set circle 2 of fusion tube 1 upper end, upper moving contact lasso 3 and top pullover 4 respectively successively, and on described upper moving contact lasso 3, disjunctor has wedge contact body 5 and clavate contact body 6 respectively.
Shown in figure, described operation ring set circle 2 and upper moving contact lasso 3 offer pin-and-hole 7 respectively, it is configured with separately the holding pin 8 that operation ring set circle 3 and upper moving contact lasso 4 adjustably can be fixed on relevant position, fusion tube 1 upper end.
It is adjustable apart from the depth that the upper moving contact at fusion tube top is designed to enter body by the present invention, thus reach the effect regulating fusion tube length, to adapt to different fuse tops; The top of existing fuse, wedge shape and bar type three kinds of fusion tube top shape are fused into a kind of adjustable universal fusion tube top by it, ensure every electric property of general shape fusion tube simultaneously; When reality uses, on carrying out after fusion tube top rotates when installing by a needs, moving contact body is fixing again.
Fusion tube of the present invention is insulating material, and fusion tube top and bottom are respectively electric conducting material; Be fixed by screw bottom fusion tube, set screw can free adjustment top and bottom distance, top direction and operation ring direction.
Claims (2)
1. a general drop type fusion tube top structure, it is pullover primarily of being socketed in the operation ring set circle of fusion tube upper end, upper moving contact lasso and top respectively successively, it is characterized in that on described upper moving contact lasso, disjunctor has wedge contact body and clavate contact body respectively.
2. general drop type fusion tube top structure according to claim 1, it is characterized in that described operation ring set circle and upper moving contact lasso offer pin-and-hole respectively, it is configured with separately the holding pin that operation ring set circle and upper moving contact lasso adjustably can be fixed on relevant position, fusion tube upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186474.4A CN104821263B (en) | 2015-04-20 | 2015-04-20 | A kind of general drop type fusion tube top structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186474.4A CN104821263B (en) | 2015-04-20 | 2015-04-20 | A kind of general drop type fusion tube top structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104821263A true CN104821263A (en) | 2015-08-05 |
| CN104821263B CN104821263B (en) | 2018-07-13 |
Family
ID=53731529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510186474.4A Active CN104821263B (en) | 2015-04-20 | 2015-04-20 | A kind of general drop type fusion tube top structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104821263B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783845A (en) * | 2022-05-10 | 2022-07-22 | 国网福建省电力有限公司邵武市供电公司 | Method suitable for mounting various types of drop-out fuse tubes |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290920Y (en) * | 1996-12-18 | 1998-09-09 | 李义祥 | Outdoor a. c high voltage falling fuse |
| CN2413379Y (en) * | 2000-01-31 | 2001-01-03 | 杭州电力设备制造公司 | High-voltage drop-off fuse |
| CN201478223U (en) * | 2009-09-09 | 2010-05-19 | 中国石油化工集团公司 | Drop-out fuse |
| CN201490535U (en) * | 2009-07-17 | 2010-05-26 | 苏尧坤 | Multifunctional conversion socket |
| CN201845734U (en) * | 2010-08-31 | 2011-05-25 | 李艳丛 | Novel dropping type fuse |
| CN202633705U (en) * | 2012-04-25 | 2012-12-26 | 卢云松 | Multi-purpose plug |
| CN204088250U (en) * | 2014-11-11 | 2015-01-07 | 国网河北饶阳县供电公司 | Fuse switch |
| CN204680635U (en) * | 2015-04-20 | 2015-09-30 | 国家电网公司 | General drop type fusion tube top structure |
-
2015
- 2015-04-20 CN CN201510186474.4A patent/CN104821263B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290920Y (en) * | 1996-12-18 | 1998-09-09 | 李义祥 | Outdoor a. c high voltage falling fuse |
| CN2413379Y (en) * | 2000-01-31 | 2001-01-03 | 杭州电力设备制造公司 | High-voltage drop-off fuse |
| CN201490535U (en) * | 2009-07-17 | 2010-05-26 | 苏尧坤 | Multifunctional conversion socket |
| CN201478223U (en) * | 2009-09-09 | 2010-05-19 | 中国石油化工集团公司 | Drop-out fuse |
| CN201845734U (en) * | 2010-08-31 | 2011-05-25 | 李艳丛 | Novel dropping type fuse |
| CN202633705U (en) * | 2012-04-25 | 2012-12-26 | 卢云松 | Multi-purpose plug |
| CN204088250U (en) * | 2014-11-11 | 2015-01-07 | 国网河北饶阳县供电公司 | Fuse switch |
| CN204680635U (en) * | 2015-04-20 | 2015-09-30 | 国家电网公司 | General drop type fusion tube top structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783845A (en) * | 2022-05-10 | 2022-07-22 | 国网福建省电力有限公司邵武市供电公司 | Method suitable for mounting various types of drop-out fuse tubes |
| CN114783845B (en) * | 2022-05-10 | 2024-01-19 | 国网福建省电力有限公司邵武市供电公司 | Method suitable for installation of drop-out fuse tubes of various types |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104821263B (en) | 2018-07-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xue Tianchen Inventor after: Wu Jie Inventor after: Wu Zhiyang Inventor after: Wang Ying Inventor after: Yan Guoliang Inventor after: Zhou Ling Inventor after: Zhu Shunyin Inventor after: Qian Wei Inventor before: Wu Jie Inventor before: Wang Ying Inventor before: Yan Guoliang Inventor before: Zhou Ling Inventor before: Xue Tianchen Inventor before: Zhu Shunyin Inventor before: Wu Zhiyang |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |