CN2833868Y - Oil-cooled quick-acting fuse - Google Patents
Oil-cooled quick-acting fuse Download PDFInfo
- Publication number
- CN2833868Y CN2833868Y CN 200520079751 CN200520079751U CN2833868Y CN 2833868 Y CN2833868 Y CN 2833868Y CN 200520079751 CN200520079751 CN 200520079751 CN 200520079751 U CN200520079751 U CN 200520079751U CN 2833868 Y CN2833868 Y CN 2833868Y
- Authority
- CN
- China
- Prior art keywords
- fusion tube
- oil
- conductive connection
- fusion
- connection plates
- 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 relates to an oil-cooled quick-acting fuse used for protecting an oil-cooled silicon semiconductor device with high power and integration of voltage transformation and rectification. The utility model comprises a fusion tube with conductive connection plates on both ends, wherein the conductive connection plates and the fusion tube are sealed by fluoroelastomer or polytetrafluorine, and the middle of the fusion tube is provided with a fusion member that is made of pure silver and is provided with a plurality of circular holes. Both ends of the fusion member are welded on the conductive connection plates on both ends of the fusion tube by a connection piece, and the rest space in the fusion tube is thickly filled with quartz sand solidified by silicate. A fuse indicating device is arranged outside the fusion tube. The utility model has the advantages of oil prevention, explosion prevention, good sealing property, high fusing capacity, high fusing speed, small fusing I<2> value, low power consumption, etc.
Description
Technical field
The utility model belongs to the low voltage electrical equipment technical field; relate to a kind of fast acting fuse that is used for the integrated semiconductor equipment protection of high-power silicon semiconductor device oil-cooled transformation rectification; its product can be used for also can be used in other industrial oil immersion formula convertor equipment in the oil immersed type rectifier of electrolytic etching of metal such as chemical industry electrolysis and aluminium, nickel.
Background technology
The existing fast acting fuse that is used for rectifying tube or thyristor and the complete sets of equipment protection thereof comprises self cool fast acting fuse and water-cooled busbar cooled fast acting fuse etc.; be operation use in air ambient; because poor-performings such as grease proofing, explosion-proof, the sealing of these type fuse products, so it can not satisfy the requirement that the integrated semiconductor equipment of high-power silicon semiconductor device oil-cooled transformation rectification is protected in actual applications well.
The utility model content
The purpose of this utility model is the problem that state of the art exists is solved, and then provides a kind of compact conformation, easy for installation, grease proofing, explosion-proof and good seal performance and breaking capacity is big, breaking speed fast, disjunction I
2The oil injection type fast acting fuse that t value and power consumption are little.
The technical solution that adopts is so for achieving the above object: the oil injection type fast acting fuse that is provided has the fusion tube that two ends have conductive connection plates, sealed with fluorubber or poly-tetrafluoro between conductive connection plates and the fusion tube, in the middle of fusion tube, install the fine silver system melt of a plurality of circular holes of punching out on it, the two ends of melt are welded on by brace on the conductive connection plates at fusion tube two ends, the close quartz sand that is filled with silicate curing of its complementary space in the fusion tube.Has grease proofing, explosion-proof, good seal performance and breaking capacity is big, breaking speed fast, disjunction I by the fast acting fuse behind the above conceptual design
2Advantages such as t value and power consumption are little; represent the authoritative at home experiment station of specification 500V/3200A one Shanghai electric equipment to detect institute's low-voltage electrical apparatus measuring station in its series of products and passed through the 100kA breaking capacity test, can satisfy the requirement of the integrated semiconductor equipment protection of high-power silicon semiconductor device oil-cooled transformation rectification in actual applications well according to International Electrotechnical Commission's IEC60269 standard.
Description of drawings
Accompanying drawing is the structural representation of a specific embodiment of the utility model.
Embodiment
Referring to accompanying drawing, oil injection type fast acting fuse described in the utility model comprises that two ends have the fusion tube 6 of conductive connection plates 1, seal with fluorubber or poly-tetrafluoro 7 between conductive connection plates 1 and the fusion tube 6, in the middle of fusion tube 6, install the fine silver system melt 4 of a plurality of circular holes of punching out on it, the two ends of melt 4 are welded on the conductive connection plates 1 at fusion tube two ends by conductive connecting piece 3, the close quartz sand 5 that is filled with silicate curing of its complementary space is equipped with a blown fuse indicator 2 in the fusion tube 6 in the outside of fusion tube 6.
Operation principle of the present utility model is: this fast acting fuse is installed in the brachium pontis of the integrated rectifier of high-power silicon semiconductor device oil-cooled transformation rectification and makes it to be connected in series with rectifying tube or thyristor, when being reversed, rectifying tube or thyristor puncture when forming certain branch, short-circuit, the short circuit current that flows through fault branch makes the interior melt fusing of fast acting fuse, vaporization, the arcing of series connection, after the energy of electric arc is absorbed by quartz sand, arc extinction, the disjunction fault branch guarantees that the transformation rectifying device normally moves.
Claims (2)
1, a kind of oil injection type fast acting fuse, it is characterized in that having the fusion tube (6) that two ends have conductive connection plates (1), sealed with fluorubber or poly-tetrafluoro (7) between conductive connection plates (1) and the fusion tube (6), in the middle of fusion tube (6), install the fine silver system melt (4) of a plurality of circular holes of punching out on it, the two ends of melt (4) are welded on by brace (3) on the conductive connection plates (1) at fusion tube two ends, the close quartz sand (5) that is filled with silicate curing of its complementary space in the fusion tube (6).
2, oil injection type fast acting fuse as claimed in claim 1 is characterized in that in the outside of fusion tube (6) blown fuse indicator (2) being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079751 CN2833868Y (en) | 2005-11-22 | 2005-11-22 | Oil-cooled quick-acting fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079751 CN2833868Y (en) | 2005-11-22 | 2005-11-22 | Oil-cooled quick-acting fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2833868Y true CN2833868Y (en) | 2006-11-01 |
Family
ID=37198179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079751 Expired - Fee Related CN2833868Y (en) | 2005-11-22 | 2005-11-22 | Oil-cooled quick-acting fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2833868Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488429A (en) * | 2008-01-17 | 2009-07-22 | 西门子公司 | Method for treating and fixing quartz sand through activation, fixed quartz sand body and excess voltage protection device |
| CN105610327A (en) * | 2016-03-22 | 2016-05-25 | 南昌科瑞一体化整流电源有限公司 | High-power electric-arc-explosion-preventing rectifier |
-
2005
- 2005-11-22 CN CN 200520079751 patent/CN2833868Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488429A (en) * | 2008-01-17 | 2009-07-22 | 西门子公司 | Method for treating and fixing quartz sand through activation, fixed quartz sand body and excess voltage protection device |
| CN105610327A (en) * | 2016-03-22 | 2016-05-25 | 南昌科瑞一体化整流电源有限公司 | High-power electric-arc-explosion-preventing rectifier |
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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 |