CN102568972B - Drop fuse - Google Patents
Drop fuse Download PDFInfo
- Publication number
- CN102568972B CN102568972B CN201010588838.9A CN201010588838A CN102568972B CN 102568972 B CN102568972 B CN 102568972B CN 201010588838 A CN201010588838 A CN 201010588838A CN 102568972 B CN102568972 B CN 102568972B
- Authority
- CN
- China
- Prior art keywords
- load electrode
- fuse
- insulator
- fusion tube
- load
- 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.)
- Expired - Fee Related
Links
- 230000004927 fusion Effects 0.000 claims abstract description 16
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The invention discloses a drop fuse, which includes an insulator fixed under an arc extinguish chamber, wherein a high-voltage stationary contact is arranged above the arc extinguish chamber, a high-voltage movable contact is arranged under the arc extinguish chamber, a regulating spring is arranged under the high-voltage movable contact and connected with the upper end of a fusion tube, the lower end of the fusion tube is connected with a load electrode, the load electrode is connected with a load electrode guide plate through a connecting spring, the load electrode guide plate is fixed at the lower end of the insulator, a fuse wire is arranged in the fusion tube, the upper end of the fuse wire is connected with the high-voltage movable contact, and the lower end of the fuse wire is connected with the load electrode. The drop fuse comprises the insulator, the arc extinguish chamber, the fusion tube and other parts; the load electrode at the lower end of the fuse wire and the load electrode guide plate are connected through the spring, that is, the load electrode and the load electrode guide plate are movably connected; and compared with the prior art, the drop fuse has a simple structure, is convenient to operate, and is suitable for a common worker to operate on site.
Description
Technical field
The present invention relates to the fuse in a kind of high-voltage electric power system.
Background technology
Fuse is the one protection equipment that protective device equipment is avoided short circuit, overload infringement.Its operation principle is in the time of line short or overload, melt in fusing carrier is melted formation electric arc, simultaneously the inner gas medium that produces of fusion tube resolves into gas when high arc temperature, in fusing carrier pipe, set up very high pressure, free metal gas bleed pipe is made to arc extinction outward, thus interrupting short circuit.The patent of invention that application number is " 200610170973.5 " discloses a kind of " fuse switch ", the disclosed fuse switch wind resistance of this patent, rain, snow and high density dust ability are strong, but its complicated parts are more, complicated operation, in the middle of practice, application is extensive not.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art, a kind of simple structure, fuse switch simple to operate are provided.
Technical scheme of the present invention realizes in the following manner: a kind of fuse switch, comprise insulator, insulator is fixed on arc control device below, arc control device top is provided with high pressure fixed contact, arc control device below is provided with high pressure moving contact, high pressure moving contact below is provided with regulating spring, regulating spring is connected with fusion tube upper end, fusion tube lower end is connected with load electrode, load electrode is connected with load electrode guide plate by linking springs, load electrode guide plate is fixed on insulator lower end, in fusion tube, be provided with fuse, fuse upper end is connected with high pressure moving contact, fuse lower end is connected with load electrode.
Load electrode described in preferred version one is two semicircular electrodes.
Load electrode described in preferred version two is four 1/4 semicircle compositions.
The present invention is made up of parts such as insulator, arc control device, fusion tubes, between the load electrode of fuse lower end and load electrode plate, be connected by spring, be between load electrode and load electrode guide plate, to be to be flexibly connected, compared with prior art, the present invention is simple in structure, easy to operate, is suitable for common laborer's execute-in-place.And fusion tube of the present invention is arranged on insulator inside, the ability of resisting extraneous wind, rain, dust etc. is higher.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the elevational schematic view of Fig. 1.
Embodiment
As shown in Figure 1, a kind of fuse switch, comprise insulator 11, insulator 11 is fixed on arc control device 3 belows, arc control device 3 tops are provided with high pressure fixed contact 1, arc control device 3 belows are provided with high pressure moving contact 2, high pressure moving contact 2 belows are provided with regulating spring 4, regulating spring 4 is connected with fusion tube 7 upper ends, fusion tube 7 lower ends are connected with load electrode 8, load electrode 8 is connected with load electrode guide plate 9 by linking springs 10, load electrode guide plate 9 is fixed on insulator 11 lower ends, in fusion tube 7, be provided with fuse 5, fuse 5 upper ends are connected with high pressure moving contact 2, fuse 5 lower ends are connected with load electrode 8.
As shown in Figure 2, described load electrode 8 is two semicircular electrodes.In the time of line short or overload, frit 6 melts, and free metal gas sprays downwards, promotes load electrode 8, and compression linking springs 10, makes to produce gap between two load electrodes 8, and free metal gas is discharged from this gap.
In the present invention, described load electrode 8 is four 1/4 semicircle compositions.Circuit normal operating conditions, four load electrodes 8 close contact under the elastic force effect of linking springs 10, forms a circle.In the time of line short or overload, free metal gas sprays downwards, promotes load electrode 8, and compression linking springs 10, makes to produce gap between four load electrodes 8, and free metal gas is discharged from this gap.
Claims (1)
1. a fuse switch, comprise insulator (11), insulator (11) is fixed on arc control device (3) below, arc control device (3) top is provided with high pressure fixed contact (1), arc control device (3) below is provided with high pressure moving contact (2), high pressure moving contact (2) below is provided with regulating spring (4), regulating spring (4) is connected with fusion tube (7) upper end, it is characterized in that: fusion tube (7) lower end is connected with load electrode (8), load electrode (8) is connected with load electrode guide plate (9) by linking springs (10), load electrode guide plate (9) is fixed on insulator (11) lower end, in fusion tube (7), be provided with fuse (5), fuse (5) upper end is connected with high pressure moving contact (2), fuse (5) lower end is connected with load electrode (8), described load electrode (8) is two semicircular electrodes or four 1/4 semicircle compositions, in the time of line short or overload, frit (6) fusing, free metal gas sprays downwards, promote load electrode (8), compression linking springs (10), make to produce gap between two load electrodes or four load electrodes (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010588838.9A CN102568972B (en) | 2010-12-15 | 2010-12-15 | Drop fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010588838.9A CN102568972B (en) | 2010-12-15 | 2010-12-15 | Drop fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102568972A CN102568972A (en) | 2012-07-11 |
| CN102568972B true CN102568972B (en) | 2014-11-12 |
Family
ID=46414106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010588838.9A Expired - Fee Related CN102568972B (en) | 2010-12-15 | 2010-12-15 | Drop fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102568972B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132284Y (en) * | 1992-09-05 | 1993-05-05 | 赵金明 | Insert switch type high voltage fuse |
| CN2526966Y (en) * | 2002-02-22 | 2002-12-18 | 王有杰 | Pull-off current-limiting fusing load switch |
| CN200993946Y (en) * | 2006-12-28 | 2007-12-19 | 王芹 | Falling-down fuse |
| CN101882543A (en) * | 2009-05-07 | 2010-11-10 | 孙力 | Antitheft falling type fuse |
| CN201893306U (en) * | 2010-12-15 | 2011-07-06 | 河南省电力公司三门峡供电公司 | Drop-out type fuse |
-
2010
- 2010-12-15 CN CN201010588838.9A patent/CN102568972B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132284Y (en) * | 1992-09-05 | 1993-05-05 | 赵金明 | Insert switch type high voltage fuse |
| CN2526966Y (en) * | 2002-02-22 | 2002-12-18 | 王有杰 | Pull-off current-limiting fusing load switch |
| CN200993946Y (en) * | 2006-12-28 | 2007-12-19 | 王芹 | Falling-down fuse |
| CN101882543A (en) * | 2009-05-07 | 2010-11-10 | 孙力 | Antitheft falling type fuse |
| CN201893306U (en) * | 2010-12-15 | 2011-07-06 | 河南省电力公司三门峡供电公司 | Drop-out type fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102568972A (en) | 2012-07-11 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SANMENXIA POWER SUPPLY COMPANY, STATE GRID HENAN E Effective date: 20131108 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ELECTRIC POWER OF HENAN SANMENXIA ELECTRICAL SERVICE COMPANY Effective date: 20131108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 472000 SANMENXIA, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20131108 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Address before: West Xiaoshan Road, Sanmenxia City, Henan province 472000 Applicant before: Electric Power of Henan Sanmenxia Electrical Service Company |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |