CN2710145Y - High-voltage current-limiting fuse - Google Patents
High-voltage current-limiting fuse Download PDFInfo
- Publication number
- CN2710145Y CN2710145Y CN 200420036671 CN200420036671U CN2710145Y CN 2710145 Y CN2710145 Y CN 2710145Y CN 200420036671 CN200420036671 CN 200420036671 CN 200420036671 U CN200420036671 U CN 200420036671U CN 2710145 Y CN2710145 Y CN 2710145Y
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- CN
- China
- Prior art keywords
- fuse
- metal cap
- melt
- skeleton
- fusion tube
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a high-voltage current-limiting fuse, comprising a fuse tube, a frame, and a fuse element. The inner sides of the metal caps of both ends of the fuse are provided with a groove, and a ' O ' shaped sealing ring is arranged in the groove. The outer side of the metal cap is provided with a fixed bolt hole provided for the bus-bar to connect, consequently the base and the fuse-carrier of the traditional fuse are saved, and the fuse does not need a supporting element. The fuse element is wound on the frame, and is fixed through a contact plate, and the fuse tube is filled with the quartz sand, in order to assure the sealing performance of the whole fuse, and not generate the oil leakage phenomenon in the long-term usage process, stop the phenomenon of explosion and the fire disaster, and satisfy the requirement of the box type combination transformer being generalized increasingly. Furthermore, the double seal of the fuse is formed in common by the ' O ' shaped sealing ring and an adhesives layer filled between the metal cap and the fuse tube.
Description
Technical field
The utility model relates to high voltage protective electrical equipment, particularly a kind of oil immersion type high-voltage and current-limitation fuse.
Background technology
At present, the environment for use that is used for the high-voltage and current-limitation fuse that the power transformer error protection uses is atmospheric environment, and when high-voltage and current-limitation fuse was installed, distance between phase and phase was bigger, greatly limits the development of box type transformer to miniaturization.Along with promoting the use of of box combined transformer, traditional fuse can not satisfy the requirement of box combined transformer, because box combined transformer requires used high-voltage and current-limitation fuse to be necessary for oil immersed type, traditional fuse is to sealing requirements and not really high, and therefore structurally traditional fuse is open type substantially.As the oil-immersed and high-voltage fuse oil seal is had very high specific (special) requirements, promptly do not allow to occur the phenomenon of seepage oil in long-term use, in case seepage oil occurs, its consequence is very serious, can blast and serious fire.
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming that exists at the conventional high-tension current limiting fuse, and a kind of high-voltage and current-limitation fuse of good seal performance is provided, and this fuse can be immersed in the transformer oil, the needs of the box combined transformer that is suitable for promoting day by day.
For achieving the above object, the utility model adopts following technical scheme:
This high-voltage and current-limitation fuse comprises fusion tube, skeleton, melt,
Fusion tube is one cylindric, each socket one metal cap of two ends, and the metal cap inboard all offers groove, is equipped with " O " RunddichtringO in the groove, and the metal cap outside all is provided with the fixing threaded hole that can connect for busbar, fills out in the fusion tube and is provided with quartz sand;
Skeleton places fusion tube, and offering on the skeleton can be for the location notch of melt location, and each fixes a conduction contact plate skeleton two ends;
Melt is banded and evenly is wound on the skeleton, and the melt two ends are connected with the conduction contact plate respectively, and conduction contact plate and metal cap join.
Be distributed with circular port and mounting hole on the described melt.
Fill out between described metal cap and the fusion tube and be provided with adhesive phase.
In the technical solution of the utility model, fuse comprises fusion tube, skeleton, melt, the inboard of the two ends metal cap of fuse all offers groove, be equipped with " O " RunddichtringO in the groove, offering on the metal cap outside can be for the fixing threaded hole of busbar connection, thereby having saved the base and the fusing carrier of traditional fuse, fuse does not need supporter; Melt is wound on the skeleton, fixed by contact plate again, also in fusion tube, insert quartz sand, can guarantee the sealing of whole fuse like this, in the long-term use oil seepage phenomena can not appear, stop blast and fire phenomena, satisfied the needs of the box combined transformer of promoting day by day; In addition, fill out between " O " RunddichtringO and metal cap and the fusion tube and be provided with the dual-seal that adhesive phase has formed fuse jointly.
Description of drawings
Fig. 1 is the utility model fuse structure schematic diagram.
Embodiment
See also shown in Figure 1ly, oil immersion type high-voltage and current-limitation fuse 10 of the present utility model comprises fusion tube 14, skeleton 11, melt 12,
Fusion tube 14 is one cylindric, fusion tube 14 is one to have the insulated tube of certain intensity, each socket one metal cap 16 of its two ends, metal cap 16 inboards all offer groove, be equipped with " O " RunddichtringO 15 in the groove, metal cap 16 outer then all settings can be filled out in the fusion tube 14 and be provided with quartz sand 17 for the fixing threaded hole of busbar connection.
In addition, filling adhesive between metal cap 16 and fusion tube 14, it and " O " RunddichtringO 15 play the dual-seal effect of this fuse jointly, to improve the sealing of whole fuse.
When concrete the making,
On skeleton 11, evenly be wound with the banded melt 12 of variable cross-section, melt 12 is connected with the fixing conduction contact plate 13 at skeleton 11 two ends, and be placed in the insulation fusion tube 14 of certain intensity, after " O " RunddichtringO 15 inserted the groove of metal cap 16 inside, metal cap 16 is nested with fusion tube 14 two ends, use the space between adhesive 18 adhering and sealing metal caps 16 and the fusion tube 14 again, insert the quartz sand 17 with arc extinguishing function again in fusion tube 14, last contact plate 13 is connected in the nut bore on the metal cap 16 with metal cap 16 firm welding, busbar.
When this oil immersion type high-voltage and current-limitation fuse uses in transformer oil, sealing ring 15 and adhesive 18 dual-seals insurance have been guaranteed to isolate fully with transformer oil, by this two seals defence line of setting up, guarantee the sealing of whole fuse, oil seepage phenomena can not appear, realized the oil seal sexual function, the needs of the box combined transformer that is suitable for promoting day by day.When this oil immersion type high-voltage and current-limitation fuse ran into fault current in use, the narrow neck place in the melt 12 will melt rapidly, at this moment will moment produce electric arc.Electric arc can be extinguished by quartz sand on every side 17 coolings, the maximum drop-out current of this fuse can reach the requirement of backup protection fully up to 5OkA.
Claims (3)
1, a kind of high-voltage and current-limitation fuse comprises fusion tube, skeleton, melt,
It is characterized in that:
Fusion tube is one cylindric, each socket one metal cap of two ends, and the metal cap inboard all offers groove, is equipped with " O " RunddichtringO in the groove, and the metal cap outside all is provided with the fixing threaded hole that can connect for busbar, fills out in the fusion tube and is provided with quartz sand;
Skeleton places fusion tube, and offering on the skeleton can be for the location notch of melt location, and each fixes a conduction contact plate skeleton two ends;
Melt is banded and evenly is wound on the skeleton, and the melt two ends are connected with the conduction contact plate respectively, and conduction contact plate and metal cap join.
2, oil immersion type high-voltage and current-limitation fuse as claimed in claim 1 is characterized in that: be distributed with circular port and mounting hole on the described melt.
3, oil immersion type high-voltage and current-limitation fuse as claimed in claim 1 is characterized in that: fill out between described metal cap and the fusion tube and be provided with adhesive phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036671 CN2710145Y (en) | 2004-06-23 | 2004-06-23 | High-voltage current-limiting fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036671 CN2710145Y (en) | 2004-06-23 | 2004-06-23 | High-voltage current-limiting fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2710145Y true CN2710145Y (en) | 2005-07-13 |
Family
ID=34850362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036671 Expired - Lifetime CN2710145Y (en) | 2004-06-23 | 2004-06-23 | High-voltage current-limiting fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2710145Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488429A (en) * | 2008-01-17 | 2009-07-22 | 西门子公司 | Method for treating and fixing quartz sand through activation, fixed quartz sand body and excess voltage protection device |
| CN104599917A (en) * | 2015-02-14 | 2015-05-06 | 南京萨特科技发展有限公司 | Protecting element |
| CN106409629A (en) * | 2016-09-28 | 2017-02-15 | 深圳路科技有限公司 | Fuse device and fabrication method thereof |
| CN113767445A (en) * | 2019-05-14 | 2021-12-07 | 韩国端子工业株式会社 | High-voltage fuse with prevent ring and break away from structure |
-
2004
- 2004-06-23 CN CN 200420036671 patent/CN2710145Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488429A (en) * | 2008-01-17 | 2009-07-22 | 西门子公司 | Method for treating and fixing quartz sand through activation, fixed quartz sand body and excess voltage protection device |
| CN104599917A (en) * | 2015-02-14 | 2015-05-06 | 南京萨特科技发展有限公司 | Protecting element |
| CN104599917B (en) * | 2015-02-14 | 2017-03-08 | 南京萨特科技发展有限公司 | A kind of protection element |
| CN106409629A (en) * | 2016-09-28 | 2017-02-15 | 深圳路科技有限公司 | Fuse device and fabrication method thereof |
| CN113767445A (en) * | 2019-05-14 | 2021-12-07 | 韩国端子工业株式会社 | High-voltage fuse with prevent ring and break away from structure |
| CN113767445B (en) * | 2019-05-14 | 2024-03-26 | 韩国端子工业株式会社 | High-voltage fuse with ring-separation preventing structure |
| US11996253B2 (en) | 2019-05-14 | 2024-05-28 | Korea Electric Terminal Co., Ltd. | High voltage fuse having ring separation prevention structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140623 Granted publication date: 20050713 |