CN102543614A - Fuse - Google Patents
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- Publication number
- CN102543614A CN102543614A CN2010105888393A CN201010588839A CN102543614A CN 102543614 A CN102543614 A CN 102543614A CN 2010105888393 A CN2010105888393 A CN 2010105888393A CN 201010588839 A CN201010588839 A CN 201010588839A CN 102543614 A CN102543614 A CN 102543614A
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- China
- Prior art keywords
- fuse
- fusion tube
- moving contact
- elastic clip
- elastic chuck
- Prior art date
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Abstract
The invention discloses a fuse, which comprises fusion tube. A fuse wire is arranged in the fusion tube, the lower end of the fusion tube is sealed by a sealing cover, the upper end of the fuse tube is provided with an elastic clip, a bevel moving contact is sleeved to the elastic clip, the cross section of the elastic clip is trapezoidal, the inner side of the bottom of the bevel moving contact is matched with the elastic clip in shape, and the bevel moving contact is connected with an insulator. Compared with the prior art, the fuse has the advantages that the cross section of the elastic clip is in a trapezoidal shape with the wider upper, the inner side of the bevel moving contact is matched with the elastic clip in shape, and upward pushing force of free gas in the fusion tube enables the bevel moving contact to be separated from the elastic clip, so that the upper end of the fusion tube is disconnected and falls off, and safety of a transformer and a circuit is guaranteed.
Description
Technical field
The present invention relates to the fuse in a kind of high-voltage electric power system.
Background technology
On distribution transformer high-pressure side and distribution service main, fuse is used as short-circuit protection, the overload protection of transformer and circuit, is a kind of outdoor high-voltage protection electrical equipment of indispensability.Its operation principle is in the time of line short or overload; Frit in the fuse is melted generation electric arc, and at the drop-down long arc of the effect of elastic body, and the inner gas medium that produces of fusing carrier resolves into gas during high arc temperature simultaneously; In the fusing carrier pipe, set up very high pressure; With free metal gas bleed pipe is outward arc extinction, thereby fusing carrier is fallen, and forms a visible isolation fracture.All shut existing fuse upper end, and gas is the outlet ejection through the fuse lower end.Existing fuse has a variety of; Like application number is that the patent of invention of " 200820184679.4 " discloses " a kind of novel outdoor high-voltage drop type fuse "; This fuse can make melting welding not take place between fuse and the fusing carrier, but its complex structure, the assembling trouble.
Summary of the invention
The objective of the invention is deficiency, a kind of fuse simple in structure, easy to use is provided to above-mentioned prior art.
Technical scheme of the present invention realizes in the following manner: a kind of fuse, comprise fusion tube, and be provided with fuse in the fusion tube; The fusion tube lower end is shut by capping; The fusion tube upper end is provided with elastic chuck, is arranged with the umbrella moving contact on the elastic chuck, and the cross section of elastic chuck is trapezoidal; The medial surface of umbrella moving contact bottom is the shape that cooperates with elastic chuck, and the umbrella contact links to each other with insulator.
Be hinged with connecting plate on the said umbrella moving contact, connecting plate links to each other with insulator.
Compared with prior art; The cross section of elastic chuck is trapezoidal among the present invention; And upward wide, narrow down, match with the shape of elastic chuck in the inboard of umbrella moving contact, and the thrust that the free gas in the fusion tube makes progress makes the umbrella moving contact break away from elastic chuck; Thereby fusion tube upper end is lost connect and fall, guaranteed the safety of transformer and circuit.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of fuse comprises fusion tube 4; Be provided with fuse 2 in the fusion tube 4, fusion tube 4 lower ends are shut by capping 1, and fusion tube 4 upper ends are provided with elastic chuck 6; Be arranged with umbrella moving contact 7 on the elastic chuck 6; The cross section of elastic chuck 6 is trapezoidal, and the medial surface of umbrella moving contact 7 bottoms is the shapes that cooperate with elastic chuck 6, and umbrella contact 7 links to each other with insulator.
Be hinged with connecting plate 5 on the said umbrella moving contact 7, connecting plate 5 links to each other with insulator.
Among the present invention, the fuse lower end is identical with the connection and the prior art of insulator, and the fuse upper end is connected on the insulator through connecting plate, and its annexation is simple, operation is prone to control.
Use of the present invention is following: connecting plate 5 is connected on the insulator, applies certain pressure for elastic chuck 6, make elastic chuck 6 inwardly shrink a little; Umbrella contact 7 is stuck on the elastic chuck 6, and the lower end of fuse also is connected on the insulator, is provided with frit 3 in the middle of the fuse 2 in the fusion tube 4; In the time of fault, frit 3 quick-breaks also produce electric arc, and the pressure in the fusion tube is increased severely; Gases at high pressure are along upwards ejection of fusion tube, and electric arc extinguishes rapidly, and gases at high pressure are with elastic chuck 6 jack-up; Make fusion tube fall, cause tangible short circuit gap.
Claims (2)
1. a fuse comprises fusion tube (4), is provided with fuse (2) in the fusion tube (4); Fusion tube (4) lower end is shut by capping (1); It is characterized in that: fusion tube (4) upper end is provided with elastic chuck (6), is arranged with umbrella moving contact (7) on the elastic chuck (6), and the cross section of elastic chuck (6) is trapezoidal; The medial surface of umbrella moving contact (7) bottom is the shape that cooperates with elastic chuck (6), and umbrella contact (7) links to each other with insulator.
2. fuse according to claim 1 is characterized in that: be hinged with connecting plate (5) on the said umbrella moving contact (7), connecting plate (5) links to each other with insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010588839.3A CN102543614B (en) | 2010-12-15 | 2010-12-15 | Fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010588839.3A CN102543614B (en) | 2010-12-15 | 2010-12-15 | Fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102543614A true CN102543614A (en) | 2012-07-04 |
| CN102543614B CN102543614B (en) | 2014-12-31 |
Family
ID=46350217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010588839.3A Expired - Fee Related CN102543614B (en) | 2010-12-15 | 2010-12-15 | Fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102543614B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB212824A (en) * | 1923-08-15 | 1924-03-20 | Wilhelm Hickel | Improvements in electric safety fuses |
| JP2001068010A (en) * | 1999-08-31 | 2001-03-16 | Nippon Kouatsu Electric Co | Electric wire fuse |
| CN2687827Y (en) * | 2003-11-14 | 2005-03-23 | 河北光远电力实业有限公司 | Spray type fuse |
| CN2775827Y (en) * | 2005-01-18 | 2006-04-26 | 赵素男 | Built-in multiple protection high voltage fuse |
| CN101764000A (en) * | 2008-11-14 | 2010-06-30 | 王芹 | Dropout fuse |
| CN201877387U (en) * | 2010-12-15 | 2011-06-22 | 河南省电力公司三门峡供电公司 | Fuse |
-
2010
- 2010-12-15 CN CN201010588839.3A patent/CN102543614B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB212824A (en) * | 1923-08-15 | 1924-03-20 | Wilhelm Hickel | Improvements in electric safety fuses |
| JP2001068010A (en) * | 1999-08-31 | 2001-03-16 | Nippon Kouatsu Electric Co | Electric wire fuse |
| CN2687827Y (en) * | 2003-11-14 | 2005-03-23 | 河北光远电力实业有限公司 | Spray type fuse |
| CN2775827Y (en) * | 2005-01-18 | 2006-04-26 | 赵素男 | Built-in multiple protection high voltage fuse |
| CN101764000A (en) * | 2008-11-14 | 2010-06-30 | 王芹 | Dropout fuse |
| CN201877387U (en) * | 2010-12-15 | 2011-06-22 | 河南省电力公司三门峡供电公司 | Fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102543614B (en) | 2014-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ELECTRIC POWER OF HENAN SANMENXIA ELECTRICAL SERVICE COMPANY Effective date: 20140115 Owner name: ELECTRIC POWER OF HENAN SANMENXIA ELECTRICAL SERVI Effective date: 20140115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 472000 SANMENXIA, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140115 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Address before: West Xiaoshan Road, Sanmenxia City, Henan province 472000 Applicant before: SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |