CN204215990U - A kind of cartridge fuse - Google Patents
A kind of cartridge fuse Download PDFInfo
- Publication number
- CN204215990U CN204215990U CN201420643586.9U CN201420643586U CN204215990U CN 204215990 U CN204215990 U CN 204215990U CN 201420643586 U CN201420643586 U CN 201420643586U CN 204215990 U CN204215990 U CN 204215990U
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- Prior art keywords
- fuse
- link
- insulated tube
- cartridge fuse
- tube
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Abstract
The utility model relates to a kind of cartridge fuse, particularly a kind of cartridge fuse being suitable for using in high pressure vacuum pipe.Comprise insulated tube and fuse-link, described fuse-link is arranged in insulated tube, and 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, described insulated tube is multi-circle spiral flow shape structure.The utility model 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 the utility model cartridge fuse is suitable for using in high pressure vacuum pipe, for vacuum switch tube provides possibility with overload and the function of short-circuit protection.
Description
Technical field
The utility model 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.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art and provide the cartridge fuse being suitable for using in high pressure vacuum pipe.
To achieve these goals, the utility model 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 utility model 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 the utility model cartridge fuse is suitable for using in high pressure vacuum pipe, for vacuum switch tube provides possibility with overload and the function of short-circuit protection.
Just the utility model is further illustrated below in conjunction with drawings and Examples.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model specific embodiment perspective view;
Accompanying drawing 2 is the utility model specific embodiment 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 shape 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, be filled with quartz sand between described insulated tube inwall and fuse-link, 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 |
|---|---|---|---|
| CN201420643586.9U CN204215990U (en) | 2014-10-30 | 2014-10-30 | A kind of cartridge fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643586.9U CN204215990U (en) | 2014-10-30 | 2014-10-30 | A kind of cartridge fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215990U true CN204215990U (en) | 2015-03-18 |
Family
ID=52984639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420643586.9U Active CN204215990U (en) | 2014-10-30 | 2014-10-30 | A kind of cartridge fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332369A (en) * | 2014-10-30 | 2015-02-04 | 温州市曙光熔断器有限公司 | Tubular fuse |
-
2014
- 2014-10-30 CN CN201420643586.9U patent/CN204215990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332369A (en) * | 2014-10-30 | 2015-02-04 | 温州市曙光熔断器有限公司 | Tubular fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |