CN202120846U - Novel dropout type fuse - Google Patents
Novel dropout type fuse Download PDFInfo
- Publication number
- CN202120846U CN202120846U CN2011202289747U CN201120228974U CN202120846U CN 202120846 U CN202120846 U CN 202120846U CN 2011202289747 U CN2011202289747 U CN 2011202289747U CN 201120228974 U CN201120228974 U CN 201120228974U CN 202120846 U CN202120846 U CN 202120846U
- Authority
- CN
- China
- Prior art keywords
- fuse
- novel
- dropout type
- fuse tube
- type fuse
- 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
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 15
- 239000007789 gas Substances 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Fuses (AREA)
Abstract
The utility model relates to a novel dropout type fuse, particularly to a novel dropout type fuse, relating to the field of high voltage power supply protection devices. The novel dropout type fuse comprises a fuse tube, a support, a bearer and a porcelain member, wherein the porcelain member is arranged on the support, and two ends of the fuse tube are fixed on the support via the bearer. The novel dropout type fuse is characterized in that cooper hoops are arranged at the upper end and the lower end of the fuse tube. The novel dropout type fuse is simple in structure, and convenient in usage. With the copper hoops arranged at two ends of the fuse tube, bending strength, tensile strength and ductility of the fuse tube are substantially enhanced, and the problem that the fuse tube cracks due to internal large arc extinguishing gas pressure and large electric power when heavy current is cut off can be effectively avoided. In addition, the novel dropout type fuse can prevent abnormal explosion of the fuse tube, thereby increasing life of the fuse tube.
Description
Technical field
The utility model relates to the high voltage supply protective device, especially a kind of novel fuse switch.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10kV distribution line branch line and distribution transformer; It has economy, easy to operate, adapt to characteristics such as outdoor environment property is strong, be widely used in 10kV distribution line and distribution transformer primary side as protection with carry out the equipment throwing, cut the usefulness of operation.It is installed on the 10kV distribution line branch line, can dwindle the power failure scope, because of it has a tangible cut-off point, has possessed the function of isolating switch, has created a safety work environment for maintenance section circuit and equipment, has increased maintainer's the sense of security.Be installed on the distribution transformer, can be used as the main protection of distribution transformer, so, in 10kV distribution line and distribution transformer, be widely used.When short circuit current passed through fuse, fuse failure produced electric arc, and the special arc extinguishing coating material of cartridge fuse liner produces a large amount of arc extinguishing gases under arcing, was shut because of the cartridge fuse upper end, and gas sprays to the lower end, blows out electric arc.Because fuse failure, the last lower moving contact of cartridge fuse loses the power of fastening of fuse, and under the effect of cartridge fuse self gravitation and upper and lower fixed contact spring leaf, cartridge fuse falls rapidly, circuit is broken off, excision faulty section circuit or faulty equipment.
Present fuse switch if fusion tube has adopted single-ended vent design, when the little short circuit current of disjunction, owing to upper end closed forms single-ended exhaust, makes to keep enough big air pressure in the pipe, helps extinguishing the little electric arc that short circuit current produced like this.But when the big short circuit current of disjunction, the fusion tube inwall decomposites a large amount of arc extinguishing gases owing to electric arc burns, and the pipe internal pressure is sharply increased; Cause the fusion tube explosion easily; So when disjunction size fault current, have the contradiction in the design, because electric current very greatly also causes the fusion tube explosion easily, also have the unusual explosion of other fusion tube etc. when producing the resonance overcurrent in addition; These all affect the fusion tube life-span, and the fusion tube life problems also is the subject matter of this type of fuse switch.
Summary of the invention
The utility model is to be solved when being exactly the big fault current of fuse switch disjunction easy explosion of fusion tube and the unusual explosion problem of other fusion tube; Solve the contradiction of the automatic gas-producing fuse disjunction size fault current of one-way gas exhaust, high novel fuse switch of a kind of fusion tube life-span is provided.
A kind of novel fuse switch of the utility model comprises cartridge fuse, support, bearing and porcelain spare, and porcelain spare is rack-mount, and the cartridge fuse two ends are fixed on the support with bearing, it is characterized in that described cartridge fuse is provided with the copper hoop on the two ends up and down.
A kind of novel fuse switch of the utility model; Simple in structure; Easy to use; Increase the copper hoop at the cartridge fuse two ends, strengthen bending strength, tensile strength and the ductility of cartridge fuse greatly, in the time of effectively avoiding high-current on-off because inner bigger arc quenching gas pressure and bear big electric power and cause accidents such as fusion tube explosion.Prevent the unusual explosion of fusion tube simultaneously, increase the fusion tube life-span greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, cartridge fuse 1, support 2, bearing 3, porcelain spare 4, copper hoop 5.
Embodiment
Embodiment 1: a kind of novel fuse switch, comprise cartridge fuse 1, support 2, bearing 3 and porcelain spare 4, and porcelain spare 4 is installed on the support 2, and cartridge fuse 1 two ends respectively are provided with a copper hoop 5, and bearing 3 passes through fixedly cartridge fuse 1 of copper hoop 5.Be fixed on the bearing 3 through copper hoop 5, can strengthen bending strength, tensile strength and the ductility of cartridge fuse 1 greatly; And can also effectively avoid high-current on-off the time because internal pressure and electric power cause that fusion tube bursts etc. accident increases the fusion tube life-span greatly.
Claims (1)
1. novel fuse switch; Comprise cartridge fuse (1), support (2), bearing (3) and porcelain spare (4); Porcelain spare (4) is installed on the support (2); Cartridge fuse (1) two ends are fixed on the support (2) with bearing (3), it is characterized in that described cartridge fuse (1) is provided with copper hoop (5) on the two ends up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202289747U CN202120846U (en) | 2011-07-01 | 2011-07-01 | Novel dropout type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202289747U CN202120846U (en) | 2011-07-01 | 2011-07-01 | Novel dropout type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120846U true CN202120846U (en) | 2012-01-18 |
Family
ID=45461888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202289747U Expired - Fee Related CN202120846U (en) | 2011-07-01 | 2011-07-01 | Novel dropout type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617936A (en) * | 2013-10-30 | 2014-03-05 | 合保电气（芜湖）有限公司 | A drop-out fuse |
| CN104037031A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Drop-out fuse fixing support |
-
2011
- 2011-07-01 CN CN2011202289747U patent/CN202120846U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617936A (en) * | 2013-10-30 | 2014-03-05 | 合保电气（芜湖）有限公司 | A drop-out fuse |
| CN103617936B (en) * | 2013-10-30 | 2015-09-09 | 合保电气（芜湖）有限公司 | A kind of fuse switch |
| CN104037031A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Drop-out fuse fixing support |
| CN104037031B (en) * | 2014-06-27 | 2016-08-17 | 国家电网公司 | Fuse switch fixed support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YUNNAN YITONG MEIER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: KUNMING YITONG MEIER LIGHTING PROTECTION ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 650011 Yunnan Province, Kunming Panlong District Baita Road No. 131 C Huidu International Building A room 1008 Patentee after: Yunnan Yitong Meier Technology Co., Ltd. Address before: 650011 Yunnan Province, Kunming Panlong District Baita Road No. 131 C Huidu International Building A room 1008 Patentee before: Kunming Yitong Meier Lighting Protection Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |