CN103137394A - Drop-out fuse - Google Patents
Drop-out fuse Download PDFInfo
- Publication number
- CN103137394A CN103137394A CN 201110396355 CN201110396355A CN103137394A CN 103137394 A CN103137394 A CN 103137394A CN 201110396355 CN201110396355 CN 201110396355 CN 201110396355 A CN201110396355 A CN 201110396355A CN 103137394 A CN103137394 A CN 103137394A
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- Prior art keywords
- fuse
- drop
- upper contact
- conductive line
- fuse wire
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Abstract
The invention discloses a drop-out fuse. The technical scheme includes: the drop-out fuse comprises a tube body, an upper contact is connected with the upper end of the tube, a lower cap is connected with the lower end of the tube body through a screw, a fuse wire is disposed in the tube body, the two ends of the fuse wire is respectively connected with the upper contact and the lower cap through fuse lines, an indicating ball is connected on the fuse line between the fuse wire and the lower cap, and a transparent window corresponding to the indicating ball is disposed on the tube body. Auxiliary drawing wires are connected with two ends of the fuse wire in parallel, auxiliary pipes are disposed on the outer side of the fuse wire on the upper portion of the indicating ball and on the outer side of the fuse line, and the upper end of the auxiliary pipe is connected with the upper contact in a sealing mode. The drop-out fuse has the advantages of being simple in structure, capable of judging whether the fuse wire is broken or not and suitable for being used as a drop-out fuse. Further, maintenance personnel can judge whether the fuse wire is broken or not without climbing high.
Description
Technical field:
The present invention relates to the fuse in supply line, particularly a kind of fuse switch.
Background technology:
When electric power maintenance, often run into the problem that fuse switch fuses because electric current is excessive, ideally, can fall from link after fuse switch blows, thereby cut off the circuit realization to the protective effect of equipment; In reality, because fuse switch is in the environment of exposure, stand for a long time wind, Exposure to Sunlight and drench with rain, make the Plug Division of fuse switch suffer oxidative attack and save bit by bit a large amount of dusts, cause the success rate of fuse switch when falling greatly to reduce, so that be difficult to whether fall and judge it is which fuse switch damages from fuse switch when outage is repaired, caused difficulty to the attendant, wasted preventive maintenance time.
Summary of the invention:
The purpose of this invention is to provide a kind of simple in structure, can judge fast the fuse switch whether fuse fuses.
Technical scheme of the present invention is: a kind of fuse switch, comprise body, the upper end of body is bolted with upper contact head, the lower end snail of body is connected to lower cover, be provided with fuse in body, the two ends of fuse are electrically connected to upper contact head and lower cover formation respectively by fuse conductive line, it is characterized in that: be connected with the indication ball on the fuse conductive line between fuse and lower cover, the body corresponding with the indication ball is provided with transparent window.The two ends of described fuse are parallel with auxiliary wire drawing.Be provided with auxiliary tube outside the fuse on described indication ball top and fuse conductive line, upper end and the upper contact head of auxiliary tube are sealed connected together.
Of the present invention simple in structure, can judge fast whether fuse fuses, especially be suitable as fuse switch and use, can make the attendant in the situation that do not climb and judge whether fuse fuses fast.
Description of drawings:
Accompanying drawing is structural representation of the present invention.
Embodiment:
as shown in the figure, as shown in the figure, the present embodiment is elaborated as an example of fuse switch example, this fuse, comprise insulation body 1, body 1 is rounded, the upper end of body 1 is bolted with metal upper contact head 2, the lower end snail of body 1 is connected to metal lower cover 3, be provided with fuse 4 in body 1, the two ends of fuse 4 are electrically connected to upper contact head 2 and lower cover 3 formations respectively by fuse conductive line 5, be connected with indication ball 6 on the fuse conductive line 5 of fuse 4 or fuse 4 bottoms, the body 1 corresponding with indication ball 6 is provided with transparent window 7, for the ease of observing, paint redness on the outer surface of indication ball 6, when fuse 4 fusing, indication ball 6 will drop down and finally break away from the visual range of window 7, thereby realized indicating ball 6 whether to fall the determination methods that judges whether fuse 4 fuses from fuse window 7 by observation, the attendant need not be ascended a height check and with the naked eye to judge, very convenient directly perceived, broken by external force when not fusing in order to prevent fuse 4, the two ends of fuse 4 are parallel with auxiliary wire drawing 11, auxiliary wire drawing 11 works to alleviate fuse 4 pulling force when fuse 4 does not fuse, after fuse 4 fusing, auxiliary wire drawing 11 is almost fusing simultaneously also, so the pulling force of fuse 4 had both been shared in auxiliary wire drawing 11, do not affect the fusing effect of fuse 4 yet, fuse 4 can produce electric arc when fusing, for electric arc is extinguished as early as possible, the fuse 4 on indication ball 6 tops and fuse conductive line 5 outsides are provided with auxiliary tube 8, the top of auxiliary tube 8 and upper contact head 2 are sealed connected together, the lower nozzle of auxiliary tube 8 is over against indication ball 6, and like this, the hot gas that fuse 4 produces when fusing and flue gas are not only being blown out electric arc when the lower nozzle of auxiliary tube 8 is discharged, also will indicate ball 6 to blow downwards, accelerate falling of indication ball 6, in order to prevent that fuse conductive line 5 is in the interior crooked clot of body 1, the middle part of lower cover 3 is provided with aperture, fuse conductive line 5 links together by shell fragment 9 and lower cover 3 after passing aperture, 9 pairs of fuse conductive line 5 of shell fragment have applied a downward pulling force, so fuse conductive line 5 can be at the inner tension that keeps of body 1, fuse 4, indication ball 6 and fuse conductive line 5 just stand upright on the axial location of body 1 like this, thereby when facilitating fuse 4 fusing, indication ball 6 can be unobstructed, fall quickly, for convenient and outside the connection, the lower end of fuse conductive line 5 is provided with an extension after passing lower cover 3, and the end of extension is provided with a spacer 10, is electrically connected to reliably to facilitate fuse to consist of with power transmission line, makes dismounting also more convenient
The invention provides a kind of convenient fuse switch that uses; method and the approach of this technical scheme of specific implementation are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (3)
1. fuse switch, comprise body, the upper end of body is bolted with upper contact head, the lower end snail of body is connected to lower cover, be provided with fuse in body, the two ends of fuse are electrically connected to upper contact head and lower cover formation respectively by fuse conductive line, it is characterized in that: be connected with the indication ball on the fuse conductive line between fuse and lower cover, the body corresponding with the indication ball is provided with transparent window.
2. a kind of fuse switch as claimed in claim 1, it is characterized in that: the two ends of described fuse are parallel with auxiliary wire drawing.
3. a kind of fuse switch as claimed in claim 1 is characterized in that: the fuse on described indication ball top and the fuse conductive line outside are provided with auxiliary tube, and upper end and the upper contact head of auxiliary tube are sealed connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110396355 CN103137394A (en) | 2011-12-01 | 2011-12-01 | Drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110396355 CN103137394A (en) | 2011-12-01 | 2011-12-01 | Drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103137394A true CN103137394A (en) | 2013-06-05 |
Family
ID=48497055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110396355 Pending CN103137394A (en) | 2011-12-01 | 2011-12-01 | Drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103137394A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064972A (en) * | 2014-06-12 | 2014-09-24 | 国家电网公司 | Device and method for recovering power supply to transformer quickly |
| CN107026062A (en) * | 2017-04-30 | 2017-08-08 | 陶霞霞 | Fuse switch |
| CN114121387A (en) * | 2021-11-29 | 2022-03-01 | 广东电网有限责任公司 | Device capable of automatically displaying insulator insulation breakdown |
-
2011
- 2011-12-01 CN CN 201110396355 patent/CN103137394A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064972A (en) * | 2014-06-12 | 2014-09-24 | 国家电网公司 | Device and method for recovering power supply to transformer quickly |
| CN104064972B (en) * | 2014-06-12 | 2016-12-21 | 国家电网公司 | The device and method of fast quick-recovery transformer-supplied |
| CN107026062A (en) * | 2017-04-30 | 2017-08-08 | 陶霞霞 | Fuse switch |
| CN114121387A (en) * | 2021-11-29 | 2022-03-01 | 广东电网有限责任公司 | Device capable of automatically displaying insulator insulation breakdown |
| CN114121387B (en) * | 2021-11-29 | 2024-04-30 | 广东电网有限责任公司 | Device capable of automatically displaying insulator insulation breakdown |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |