CN104332369A - Tubular fuse - Google Patents
Tubular fuse Download PDFInfo
- Publication number
- CN104332369A CN104332369A CN201410603025.0A CN201410603025A CN104332369A CN 104332369 A CN104332369 A CN 104332369A CN 201410603025 A CN201410603025 A CN 201410603025A CN 104332369 A CN104332369 A CN 104332369A
- Authority
- CN
- China
- Prior art keywords
- fuse
- tube
- link
- tubular
- insulated tube
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/047—Vacuum fuses
Landscapes
- Fuses (AREA)
Abstract
The invention relates to a tubular fuse, in particular to the tubular fuse which is suitable for high-pressure vacuum tubes. The tubular fuse comprises an insulation tube and a fuse link, the fuse link is arranged in the insulation tube, two ends of the fuse link are closed by metal tube caps and electrically connected with the metal tube caps, a space between the inside of the insulation tube and the fuse link is filled with quartz sand, and the insulation tube is of a multi-ring spiral structure. The tubular fuse is manufactured into a multi-ring spiral cylinder, the fuse link can be greatly lengthened on the same height, a movable electrode and a fixed electrode of a vacuum switch tube can be arranged at the center of the tubular fuse, and an original space in the vacuum switch tube is effectively used, so that the tubular fuse is suitable for the high-pressure vacuum tubes and provides a possibility that the vacuum switch tube has overload and short-circuit protection functions.
Description
Technical field
The present invention relates to a kind of cartridge fuse, particularly a kind of cartridge fuse being suitable for using in high pressure vacuum pipe.
Background technology
Vacuum switch tube, have another name called vacuum interrupter, it is the core component of mesohigh power switch, its Main Function is, by can blow-out suppress electric current rapidly after managing the excellent insulating properties of interior vacuum and making mesohigh circuitry cuts power supply, avoid accident and unexpected generation, be mainly used in the power transmission and distribution control system of electric power, be also applied to the distribution systems such as metallurgy, mine, oil, chemical industry, railway, broadcast, communication, industrial high-frequency heating.There is energy-conservation, material-saving, fire prevention, explosion-proof, volume is little, the life-span is long, maintenance cost is low and the feature such as pollution-free.The structure of vacuum switch tube generally includes the parts such as airtight insulation crust, galvanic circle, shielding harness, bellows.The cylindrical shape that airtight insulation crust is generally made up of pottery or glass; Determine conducting rod, surely run cambered surface, determine contact, moving contact, dynamic run cambered surface, conducting system that moving conductive rod constitutes arc control device, wherein determine conducting rod, surely run cambered surface, determine the weighed electrode of contactor, moving contact, dynamic race cambered surface, moving conductive rod are collectively referred to as moving electrode, the vacuum circuit-breaker be assembled into by vacuum interrupter, when vacuum load switch and vacuum contactor close a floodgate, operating mechanism, by the axial motion of moving conductive rod, makes two contact closure, completes the connection of circuit; When vacuum switch breaking current, arc control device two contact is separated and produces electric arc betwixt, until arc extinction during electric current natural zero-crossing, just completes cut-offfing of circuit; Shielding harness forms primarily of shielding cylinder, radome and other parts.But vacuum switch tube does not arrange corresponding fuse due to inside; therefore all existing vacuum switch tubes are all without overload and the function of short-circuit protection; trace it to its cause is that vacuum switch tube is mainly used in the occasion of the high pressure such as the power transmission and distribution control system of electric power, big current; fuse-link required in fuse must have longer length; and traditional cartridge fuse is cylindrical; the size of length like this cannot be arranged on the inside of vacuum switch tube, causes vacuum switch tubes all up to now still all without overload and the function of short-circuit protection.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and the cartridge fuse being suitable for using in high pressure vacuum pipe is provided.
To achieve these goals, the present invention adopts following scheme: a kind of cartridge fuse, comprise insulated tube and fuse-link, described fuse-link is arranged in insulated tube, two ends are provided with metal pipe cap and close, and the two ends of described fuse-link are electrically connected with metal pipe cap, in described insulated tube and and fuse-link between be filled with quartz sand, it is characterized in that: described insulated tube is multi-circle spiral flow shape structure, be preferably multi-circle spiral flow cylindrical-shaped structure.
The present invention is cylindric by cartridge fuse is made multi-circle spiral flow; same height can make fuse-link greatly extend; simultaneously dynamic, the center that fixed electrode can be arranged on cartridge fuse of vacuum switch tube; efficiently utilize original space in vacuum switch tube; therefore cartridge fuse of the present invention is suitable for using in high pressure vacuum pipe, for vacuum switch tube provides possibility with overload and the function of short-circuit protection.
Below in conjunction with drawings and Examples, just the present invention is further described:
Accompanying drawing 1 is specific embodiment of the invention perspective view;
Accompanying drawing 2 is specific embodiment of the invention structural front view;
Accompanying drawing 3 is accompanying drawing 2 A-A structure cutaway view.
Embodiment
As Figure 1-3, cartridge fuse still comprises insulated tube 1 and fuse-link 2, described fuse-link 2 is arranged in insulated tube 1, described insulated tube 1 is multi-circle spiral flow shape structure, the multi-circle spiral flow cylindrical-shaped structure preferably become by round tube dish, described insulated tube 1 two ends are provided with metal pipe cap 4 and close, and the two ends of described fuse-link 2 are electrically connected with metal pipe cap 4, the mode of welding or crimping can be adopted, in described insulated tube 1 and and fuse-link 2 between be filled with quartz sand 3.According to designing requirement, described insulated tube 1 can adopt earthenware, glass tube or epoxy resin pipe.
Claims (3)
1. a cartridge fuse, comprise insulated tube and fuse-link, described fuse-link is arranged in insulated tube, two ends are provided with metal pipe cap and close, the two ends of described fuse-link are electrically connected with metal pipe cap, in described insulated tube and and fuse-link between be filled with quartz sand, it is characterized in that: described insulated tube is multi-circle spiral flow shape structure.
2. cartridge fuse according to claim 1, is characterized in that: described insulated tube is multi-circle spiral flow cylindrical-shaped structure.
3. cartridge fuse according to claim 1 and 2, is characterized in that: described insulated tube is the multi-circle spiral flow shape structure become by round tube dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603025.0A CN104332369A (en) | 2014-10-30 | 2014-10-30 | Tubular fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603025.0A CN104332369A (en) | 2014-10-30 | 2014-10-30 | Tubular fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104332369A true CN104332369A (en) | 2015-02-04 |
Family
ID=52407079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603025.0A Pending CN104332369A (en) | 2014-10-30 | 2014-10-30 | Tubular fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332369A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479637Y (en) * | 2001-04-23 | 2002-02-27 | 张毅 | High-voltage current-limiting fuse for protecting transformer |
| CN1371114A (en) * | 2001-02-13 | 2002-09-25 | 库珀(英国)有限公司 | Whole-range high-voltage current-limiting fuse |
| JP2012094397A (en) * | 2010-10-27 | 2012-05-17 | Chugoku Electric Power Co Inc:The | Fuse device |
| CN204215990U (en) * | 2014-10-30 | 2015-03-18 | 温州市曙光熔断器有限公司 | A kind of cartridge fuse |
-
2014
- 2014-10-30 CN CN201410603025.0A patent/CN104332369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371114A (en) * | 2001-02-13 | 2002-09-25 | 库珀(英国)有限公司 | Whole-range high-voltage current-limiting fuse |
| CN2479637Y (en) * | 2001-04-23 | 2002-02-27 | 张毅 | High-voltage current-limiting fuse for protecting transformer |
| JP2012094397A (en) * | 2010-10-27 | 2012-05-17 | Chugoku Electric Power Co Inc:The | Fuse device |
| CN204215990U (en) * | 2014-10-30 | 2015-03-18 | 温州市曙光熔断器有限公司 | A kind of cartridge fuse |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |
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| RJ01 | Rejection of invention patent application after publication |