CN205621693U - Gamut protection high voltage current limiting fuse - Google Patents
Gamut protection high voltage current limiting fuse Download PDFInfo
- Publication number
- CN205621693U CN205621693U CN201620024541.2U CN201620024541U CN205621693U CN 205621693 U CN205621693 U CN 205621693U CN 201620024541 U CN201620024541 U CN 201620024541U CN 205621693 U CN205621693 U CN 205621693U
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- Prior art keywords
- melt
- skeleton
- gamut
- current
- voltage
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Abstract
The utility model provides a gamut protection high voltage current limiting fuse, its characterized in that includes impinger, sealing layer, shell, fuse -element, the district that generates heat, skeleton, spring silk, copper cap, two sides are provided with the copper cap about the shell, the skeleton is installed to the shell inboard, the skeleton intermediate position is equipped with the district that generates heat, generating heat, the parcel has a fuse -element on the skeleton of district both sides, the utility model discloses an intermediate position is provided with the district that generates heat, be used for cut -offfing low overload current, the shared length in this region is about 14 of fuse -element total length, this fuse -element is made for silver -colored golden alloy material, the fusion temperature of fuse -element is low during the use, be about 600 degrees left and right sides greatly, has anti -oxidant ageing -resistant ability, heat capacity is great, higher recovery voltage has, the foreign layer package that generate heat there is the insulating layer, the insulating layer is made for insulating material, play insulating effect, make the internal heat generation layer not influenced by external power service.
Description
Technical field
This utility model relates to high voltage power distribution field, particularly relates to a kind of gamut protection high-voltage and current-limitation fuse.
Background technology
High-tension fuse is used to protect the one simplest protection electrical equipment of electrical equipment; it is used for protecting electrical equipment against the infringement of overload and short circuit current; high-tension fuse simple in construction now; only there is simple protective effect; high overload electric current can only be protected; can not at once disconnect when running into low overcurrent and protect electric equipment, low overcurrent also can produce infringement to electrical equipment.
Summary of the invention
According to above technical problem, this utility model provides a kind of gamut protection high-voltage and current-limitation fuse, it is characterized in that including ram, sealant, shell, melt, hot zone, skeleton, spring wire, copper cap, upper and lower two sides of described shell are provided with copper cap, inside described shell, skeleton is installed, described skeleton centre position is provided with hot zone, it is enclosed with melt on the skeleton of both sides, described hot zone, the described melt in downside is connected by spring wire and copper cap, the described melt in upside is connected by spring wire and sealant, described sealant is arranged on skeleton top, connect on the downside of described sealant and ram, install inside the shell on the upside of described ram.
Described shell is ceramic package.
Described skeleton is pottery seven-star spinous process of the seventh cervical vertebra frame.
Described spring wire is high value metal spring silk.
Described melt is made up of leading portion silver melt, stage casing silver billon melt and back segment silver melt three part.
Described silver melt is N root, 8≤N≤16.
Described hot zone a length of melt length 1/4.
It is enclosed with insulating barrier outside described hot zone.
Equipped with spring inside described ram.
The beneficial effects of the utility model are: this utility model is that gamut protects high-voltage and current-limitation fuse, cut-offs short circuit current ability greatly, and has significant current limiting effect, and before short circuit current is also not up to maximum, electric current is i.e. truncated, and security performance is high.This utility model also can cut-off low overcurrent simultaneously, and then improves safety of the present utility model.Centre position of the present utility model is provided with a hot zone; it is used for cut-offfing low overcurrent; shared by this region about the 1/4 of a length of melt total length; this melt is made for silver alloy material; during use, the fusion temperature of melt is low; it is about about 600 degree; there is the ageing-resistant ability of antioxidative; thermal capacity is relatively big, has higher recovery voltage, and hot zone outer layer is surrounded by insulating barrier; insulating barrier is that insulant is made; play insulating effect, make inner heat layer not affected by external power, play effect of gamut protection.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Such as figure, ram-1, sealant-2, shell-3, melt-4, hot zone-5, skeleton-6, spring wire-7, copper cap-8.
Detailed description of the invention
According to Fig. 1, this utility model is further described:
Embodiment 1
This utility model provides a kind of gamut protection high-voltage and current-limitation fuse, including ram 1, sealant 2, shell 3, melt 4, hot zone 5, skeleton 6, spring wire 7, copper cap 8, about 3 two sides of shell are provided with copper cap 8, skeleton 6 is installed inside shell 3, skeleton 6 centre position is provided with hot zone 5, it is enclosed with melt 4 on the skeleton 6 of both sides, hot zone 5, downside melt 4 is connected by spring wire 7 and copper cap 8, upside melt 4 is connected by spring wire 7 and sealant 2, sealant 2 is arranged on skeleton 6 top, connect on the downside of sealant 2 and ram 1, it is arranged on the upside of ram 1 inside shell 3.Shell 3 is ceramic package 3.Skeleton 6 is pottery seven-star spinous process of the seventh cervical vertebra frame 6.Spring wire 7 is high value metal spring silk 7.Melt 4 leading portion silver melt 4, stage casing silver billon melt 4 and back segment silver melt 4 three part are constituted.Silver melt 4 is N root, 8≤N≤16.Hot zone 5 a length of melt 4 length 1/4.It is enclosed with insulating barrier outside hot zone 5.Ram 1 is internal equipped with spring.
Embodiment 2
During use, when less than overcurrent, owing to this silver billon melt 4 has bigger temperature-coefficient of electrical resistance rate of change, therefore resistance rises rapidly, power consumption increases severely, and when temperature rapidly rises to fusion temperature, quickly produces electric arc between the fracture of melt 4, and in current over-zero moment, the metallic vapour of electric arc is diffused between quartz sand gap and carries out cooling down and extinguishing electric arc.After melt 4 fusing, electric current is all concentrated to high value metal spring silk 7, and moment fuses, ram 1 action.When short circuit current is by fuse, the temperature of melt 4 is rapidly increased to fusing point 960 degree, wherein the single or multiple fractures of a melt 4 first fuse, producing electric arc, in the most remaining melt 4 in parallel, the electric current of every melt 4 overload is increasing, and melt 4 in parallel fuses successively, after Till the end of the time melt 4 fusing, there will be higher overvoltage, several melts 4 fused at first will be impacted, make major part fracture all produce fusing.After melt 4 all fuses, electric current is all concentrated to high value metal spring silk 7, and moment fuses, ram 1 action.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (9)
1. a gamut protection high-voltage and current-limitation fuse, it is characterized in that including ram, sealant, shell, melt, hot zone, skeleton, spring wire, copper cap, upper and lower two sides of described shell are provided with copper cap, inside described shell, skeleton is installed, described skeleton centre position is provided with hot zone, it is enclosed with melt on the skeleton of both sides, described hot zone, the described melt in downside is connected by spring wire and copper cap, the described melt in upside is connected by spring wire and sealant, described sealant is arranged on skeleton top, connect on the downside of described sealant and ram, install inside the shell on the upside of described ram.
2. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that described shell is ceramic package.
3. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that described skeleton is pottery seven-star spinous process of the seventh cervical vertebra frame.
4. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that described spring wire is high value metal spring silk.
5. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that described melt is made up of leading portion silver melt, stage casing silver billon melt and back segment silver melt three part.
6. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 5, it is characterised in that described silver melt is N root, 8≤N≤16.
7. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that described hot zone a length of melt length 1/4.
8. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that outside described hot zone, be enclosed with insulating barrier.
9. protect high-voltage and current-limitation fuse according to a kind of gamut described in claim 1, it is characterised in that equipped with spring inside described ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024541.2U CN205621693U (en) | 2016-01-12 | 2016-01-12 | Gamut protection high voltage current limiting fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024541.2U CN205621693U (en) | 2016-01-12 | 2016-01-12 | Gamut protection high voltage current limiting fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205621693U true CN205621693U (en) | 2016-10-05 |
Family
ID=57034740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620024541.2U Expired - Fee Related CN205621693U (en) | 2016-01-12 | 2016-01-12 | Gamut protection high voltage current limiting fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205621693U (en) |
-
2016
- 2016-01-12 CN CN201620024541.2U patent/CN205621693U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: ZhangGuiZhuang road 300000 Tianjin city Dongli District No. 119 Patentee after: Tianjin Jiu porcelain electric appliance Limited by Share Ltd Address before: ZhangGuiZhuang road 300000 Tianjin city Dongli District No. 119 Patentee before: Tianjin Jiuqian Electric Porcelain & Electric Appliance Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20200112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |