CN2138838Y - Fast fuse - Google Patents
Fast fuse Download PDFInfo
- Publication number
- CN2138838Y CN2138838Y CN 92240771 CN92240771U CN2138838Y CN 2138838 Y CN2138838 Y CN 2138838Y CN 92240771 CN92240771 CN 92240771 CN 92240771 U CN92240771 U CN 92240771U CN 2138838 Y CN2138838 Y CN 2138838Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- porcelain
- fusible link
- speed
- utility
- 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
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Abstract
The utility model discloses a high-speed fuse, which is an improved version of the fuse in the electric apparatus. The high-speed fuse comprises a fuse, porcelain tubes, porcelain rings, metal caps and pin wires. The high-speed fuse is characterized in that the both ends of the porcelain tubes are pressed and connected with porcelain rings which cause the fuse to stay in the center, the fuse is made of WAISn alloy, with the shape of wave (approximate to sinusoidal wave), and the porcelain tubes and porcelain rings are made of electronic ceramic materials. The utility model has the advantages of simple structure, shake resistance, shock resistance and short fusing time. The high-speed fuse can be used as an ordinary fuse, and can also be used in special occasions which require high quake-proof and shock-proof performance as well as short fusing time.
Description
The utility model fast acting fuse relates to the improvement of fuse in the electrical equipment, belongs to a kind of high reliability fast acting fuse.
Existing medium and small current fuse mainly contains glass packaging formula and ceramic packaging formula two big classes.Glass packaging formula fuse, cost are low; But glass packaging formula overall dimension is bigger, and intensity is low, and antidetonation and shock-resistant ability just in case can produce metal and non-metal foreign body when broken in instrument, gently then influence the instrument operate as normal, and is heavy then cause short circuit; In addition, glass packaging formula fixed form is limited, is commonly used for instrument complete machine power protection, is not suitable for the board level protection.Aspect operating chacteristics, when being two times of rated current by its short circuit current, fusing time is 2～60 seconds, and visible fusing time is long partially, and more discrete, is difficult to adapt to the occasion that operating chacteristics is had relatively high expectations.Though the resistance-type fuse of ceramic packaging has changed mounting means, has reduced overall dimension, has improved the strength of materials; But the shock resistance of its fusible link and resistance to impact are still undesirable, and operating chacteristics is improved not obvious.
The utility model improves at the weak point of above-mentioned existing fuse, has provided a kind of antidetonation, shock-resistant ability is stronger, and operating chacteristics is fast acting fuse preferably.
Task of the present utility model is finished with the following methods.
For improving the antidetonation and the shock-resistant ability of fusible link, fusible link is used the WAlSn alloy material instead, and is processed into waveform.Flange shape of each crimping of porcelain tube two ends porcelain circle at existing fuse is protected on the porcelain tube axis fusible link substantially, and card porcelain tube inwall when avoiding the fusible link thermal stretching is to improve its operating chacteristics.
Concrete structure of the present utility model is provided by following examples and accompanying drawing.
Accompanying drawing is that structure of the present utility model is analysed and observe (along axis) figure.
With reference to accompanying drawing, this fast acting fuse is by porcelain tube (2), fusible link (3), metal cap (4), lead-foot-line formations such as (1).Outside the two ends of porcelain tube (2) are crimped with porcelain circle (5), porcelain circle, be crimped with metal cap (4), and connect lead-foot-line (1).Fusible link (3) by the porcelain tube axis is waveform (a near sinusoidal waveform), adopts the WAlSn alloy material to make, and fusible link links to each other with the metal cap crimping by porcelain circle centre bore, and porcelain tube, porcelain circle adopt the less electron ceramic material of coefficient of thermal expansion to make.
The utility model fast acting fuse is simple in structure, and the antidetonation of reliability height, particularly fusible link, shock-resistant ability and operating chacteristics have improvement by a relatively large margin.When the short circuit current by fuse was two times of rated current, its fusing time can drop in 0.1 second.
The utility model can be widely used in the electronic instruments, especially can be used for existing fuse dare not set foot in, and antidetonation, resistance to impact are had relatively high expectations, and environment is the occasion of abominable (high low temperature alternation, thermal vacuum etc.) comparatively, as vehicle electronics instrument, fields such as weaponry and Aero-Space.
Claims (3)
1, a kind of fast acting fuse that is made of porcelain tube (2), fusible link (3), metal cap (4) and lead-foot-line (1) is characterized in that porcelain tube (2) two ends are crimped with flange shape porcelain circle (5), and the fusible link on the porcelain tube axis (3) adopts the WA1Sn alloy to make.
2, fast acting fuse according to claim 1 is characterized in that fusible link (3) is a undaform (near sinusoidal waveform).
3, fast acting fuse according to claim 1 is characterized in that porcelain tube (2), porcelain circle (5) made by the less electron ceramic material of coefficient of thermal expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240771 CN2138838Y (en) | 1992-11-19 | 1992-11-19 | Fast fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240771 CN2138838Y (en) | 1992-11-19 | 1992-11-19 | Fast fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2138838Y true CN2138838Y (en) | 1993-07-21 |
Family
ID=33781034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92240771 Expired - Fee Related CN2138838Y (en) | 1992-11-19 | 1992-11-19 | Fast fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2138838Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350540C (en) * | 2003-03-04 | 2007-11-21 | 维克曼工厂有限公司 | Fuse device with inner contemperary seal |
| CN101599393B (en) * | 2009-07-03 | 2011-06-01 | 杨光 | Method for manufacturing micro fuse and manufactured product thereof |
| CN101685734B (en) * | 2008-09-26 | 2011-11-09 | 邱鸿智 | Explosion proof fuse with energy saving and environmental protection as well as manufacturing method thereof |
-
1992
- 1992-11-19 CN CN 92240771 patent/CN2138838Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350540C (en) * | 2003-03-04 | 2007-11-21 | 维克曼工厂有限公司 | Fuse device with inner contemperary seal |
| CN101685734B (en) * | 2008-09-26 | 2011-11-09 | 邱鸿智 | Explosion proof fuse with energy saving and environmental protection as well as manufacturing method thereof |
| CN101599393B (en) * | 2009-07-03 | 2011-06-01 | 杨光 | Method for manufacturing micro fuse and manufactured product thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |