CN104241059A - High-voltage fuse with shielding function - Google Patents
High-voltage fuse with shielding function Download PDFInfo
- Publication number
- CN104241059A CN104241059A CN201410474425.6A CN201410474425A CN104241059A CN 104241059 A CN104241059 A CN 104241059A CN 201410474425 A CN201410474425 A CN 201410474425A CN 104241059 A CN104241059 A CN 104241059A
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- CN
- China
- Prior art keywords
- fuse
- porcelain tube
- shielding
- gauze screen
- partial discharge
- 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.)
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Abstract
The invention relates to a high-voltage fuse with the shielding function. The high-voltage fuse comprises a porcelain tube, a fuse wire and two contacts. The fuse wire penetrates into the porcelain tube, the two ends of the fuse wire are connected and packaged on the contacts at the two ports of the porcelain tube, and shielding nets are arranged between the fuse wire and the porcelain tube. The shielding nets are arranged in the porcelain tube between the two contacts, the shielding nets are vacuumized, the fuse wire is shielded in the shielding nets, the diameter of the shielding nets is smaller than the diameter of the outer tube of the fuse and larger than the diameter of the metal wire, in a vacuum state, the influences of partial discharge of the fuse wire on partial discharge of other devices of the fuse in the use environment are reduced through the shielding nets, the electric field distribution of the high-voltage fuse can be effectively improved, the magnitude of partial discharge of the fuse is reduced, and therefore the partial discharge level of a high-voltage device matched with the fuse is increased and the overload and short-circuit protection on the high-voltage device is achieved.
Description
Technical field
The present invention relates to a kind of fuse, is a kind of high-tension fuse with function of shielding specifically.
Background technology
In order to proterctive equipment between current high-tension apparatus and High-Voltage Electrical Appliances, installing high-tension fuse is used as proterctive equipment.Existing high-tension fuse is in fusion tube and directly uses fuse, and the diameter of fuse is comparatively thin, and under high-tension effect, cause fuse field intensity too concentrated, partial discharge quantity is large.Especially be built in the fuse in high-tension apparatus, because fuse exists partial discharge phenomenon, cause whole high-pressure installation partial discharge defective.The most popular fuse being built in voltage transformer at present, a large amount of arc extinguishing insulative material is filled in fuse inside, occupies the space of insulation, affects interiors of products design, and waste material, considerably increases manufacturing cost and the technical difficulty of instrument transformer.
Summary of the invention
For the deficiency of above-mentioned fuse shielding design in prior art, the invention provides a kind of structure simple, easy to make, cost is low, the high-tension fuse of the band function of shielding that shield effectiveness is good.
The technical solution used in the present invention is: a kind of high-tension fuse with function of shielding, comprise porcelain tube, fuse and two contacts, fuse is connected in porcelain tube, and fuse two ends connection encapsulation is at the contact of porcelain tube two-port, and its technical characterstic is provided with gauze screen between described fuse and porcelain tube.
Further, the two ends of described gauze screen are not connected with the contact being encapsulated in porcelain tube two-port.
Further, described gauze screen is divided into two sections, and two sections are connected with the contact being encapsulated in porcelain tube two-port respectively, and two intersegmentally do not connect.
Further, in a tubular form, tubular shielding net does not all contact with porcelain tube, fuse described gauze screen.
Again further, described porcelain tube inner vacuum.
Adopt above technical scheme, the invention has the beneficial effects as follows: built-in gauze screen in the magnetic tube between two contacts, and vacuumize, fuse shields interior by gauze screen, the diameter of gauze screen is less than fuse outer tube, but be greater than diameter wiry, under vacuum conditions, gauze screen reduces because the office of fuse itself is rivals in a contest the impact of the partial discharge of other equipment under fuse environment for use, effectively can improve the Electric Field Distribution of high-tension fuse itself, the partial discharge quantity of minimizing own, thus the office of improving the high-pressure installation supporting with fuse discharges water flat, realize the overload to high-tension apparatus and short-circuit protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: porcelain tube 1, left contact 2, right contact 3, fuse 4, left gauze screen 5, right gauze screen 6.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Shown in Fig. 1, a kind of high-tension fuse with function of shielding comprises porcelain tube 1, left contact 2, right contact 3, fuse 4, left gauze screen 5 and right gauze screen 6.The two ends of porcelain tube 1 encapsulate left contact 2 and right contact 3, vacuum in porcelain tube 1, fuse 4 is connected in porcelain tube 1 and the two ends of fuse 4 connect left contact 2 and right contact 3 respectively, left contact 2 and right contact 3 are connected to and are placed in left gauze screen 5 in porcelain tube 1 and right gauze screen 6, left gauze screen 5 is not connected with right gauze screen 6, and left gauze screen 5 and right gauze screen 6 in a tubular form coaxial sleeve to be connected between fuse 4 with porcelain tube 1 and two to be neither connected.
Claims (5)
1. the high-tension fuse with function of shielding, comprise porcelain tube, fuse and two contacts, fuse is connected in porcelain tube, and fuse two ends connection encapsulation, at the contact of porcelain tube two-port, is characterized in that: be provided with gauze screen between described fuse and porcelain tube.
2. a kind of high-tension fuse with function of shielding according to claim 1, is characterized in that: the two ends of described gauze screen are not connected with the contact being encapsulated in porcelain tube two-port.
3. a kind of high-tension fuse with function of shielding according to claim 1, is characterized in that: described gauze screen is divided into two sections, and two sections are connected with the contact being encapsulated in porcelain tube two-port respectively, and two intersegmentally do not connect.
4. a kind of high-tension fuse with function of shielding according to claim 1 or 2 or 3, is characterized in that: in a tubular form, tubular shielding net does not all contact with porcelain tube, fuse described gauze screen.
5. a kind of high-tension fuse with function of shielding according to claim 1, is characterized in that: described porcelain tube inner vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474425.6A CN104241059A (en) | 2014-09-18 | 2014-09-18 | High-voltage fuse with shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474425.6A CN104241059A (en) | 2014-09-18 | 2014-09-18 | High-voltage fuse with shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104241059A true CN104241059A (en) | 2014-12-24 |
Family
ID=52228931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410474425.6A Pending CN104241059A (en) | 2014-09-18 | 2014-09-18 | High-voltage fuse with shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104241059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382483A (en) * | 2020-11-12 | 2021-02-19 | 湖北大二互科技股份有限公司 | 35KV metal outer-armored shielding type voltage transformer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB828861A (en) * | 1957-03-11 | 1960-02-24 | Ferguson Pailin Ltd | Improvements relating to electrical apparatus having fused terminals |
| US5140294A (en) * | 1990-08-20 | 1992-08-18 | Schurter Ag | Safety fuse element and method of manufacturing such safety fuse element |
| JP2007005008A (en) * | 2005-06-21 | 2007-01-11 | Fuji Xerox Co Ltd | Casing structure of element |
| CN2929951Y (en) * | 2006-07-26 | 2007-08-01 | 山东晨鸿电气有限公司 | Vacuum overload fuse |
| CN200953334Y (en) * | 2005-12-09 | 2007-09-26 | 王季梅 | Vacuum mixing current-limiting fuse |
| CN101901717A (en) * | 2010-07-06 | 2010-12-01 | 曾泓瑞 | Vacuum overcurrent fuse protecting device for high-voltage power supply system and low-voltage power supply system |
| CN201820728U (en) * | 2010-10-27 | 2011-05-04 | 浙江雷安电气有限公司 | Novel fuse unit |
| CN103022928A (en) * | 2012-12-28 | 2013-04-03 | 中国西电电气股份有限公司 | Contact double-shielding structure |
| CN204118027U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of high-tension fuse with function of shielding |
-
2014
- 2014-09-18 CN CN201410474425.6A patent/CN104241059A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB828861A (en) * | 1957-03-11 | 1960-02-24 | Ferguson Pailin Ltd | Improvements relating to electrical apparatus having fused terminals |
| US5140294A (en) * | 1990-08-20 | 1992-08-18 | Schurter Ag | Safety fuse element and method of manufacturing such safety fuse element |
| JP2007005008A (en) * | 2005-06-21 | 2007-01-11 | Fuji Xerox Co Ltd | Casing structure of element |
| CN200953334Y (en) * | 2005-12-09 | 2007-09-26 | 王季梅 | Vacuum mixing current-limiting fuse |
| CN2929951Y (en) * | 2006-07-26 | 2007-08-01 | 山东晨鸿电气有限公司 | Vacuum overload fuse |
| CN101901717A (en) * | 2010-07-06 | 2010-12-01 | 曾泓瑞 | Vacuum overcurrent fuse protecting device for high-voltage power supply system and low-voltage power supply system |
| CN201820728U (en) * | 2010-10-27 | 2011-05-04 | 浙江雷安电气有限公司 | Novel fuse unit |
| CN103022928A (en) * | 2012-12-28 | 2013-04-03 | 中国西电电气股份有限公司 | Contact double-shielding structure |
| CN204118027U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of high-tension fuse with function of shielding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382483A (en) * | 2020-11-12 | 2021-02-19 | 湖北大二互科技股份有限公司 | 35KV metal outer-armored shielding type voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |