CN103681157A - Arc-extinguishing-type drop-out fuse - Google Patents
Arc-extinguishing-type drop-out fuse Download PDFInfo
- Publication number
- CN103681157A CN103681157A CN201310717560.4A CN201310717560A CN103681157A CN 103681157 A CN103681157 A CN 103681157A CN 201310717560 A CN201310717560 A CN 201310717560A CN 103681157 A CN103681157 A CN 103681157A
- Authority
- CN
- China
- Prior art keywords
- arc
- fuse
- extinguishing
- support plate
- narrow slit
- 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.)
- Granted
Links
Images
Landscapes
- Fuses (AREA)
Abstract
The invention discloses an arc-extinguishing-type drop-out fuse which aims to provide a drop-out fuse having the advantages of good arc-extinguishing effect, simple structure and easiness in maintenance. The drop-out fuse comprises an insulation porcelain of which the upper part of the insulation porcelain is connected with a support plate by an upper mounting steel leg, the lower part is connected with a lower bracket by a lower mounting steel leg, the middle is provided with an intermediate steel leg; the lower bracket is connected with a fuse tube which is provided with an upper ring; an arc-extinguishing device connected with the upper ring is arranged below the support plate, one end of the arc-extinguishing device is connected with a fixed plate, and the other end of the fixed plated is connected with the support plate. The arc-extinguishing device comprises a housing, a spring, a contact piece, a quartz sand block and a fuse wire, wherein one end of the spring is fixedly connected with the housing, the other end is connected with the head of the contact piece; the tail of the contact piece is fixed to the housing by rivets; the quartz sand block is embedded on the side wall of the housing, and the center of the quartz sand block is provided with the fuse wire; one end of the fuse wire is connected with the fixed plate. The arc-extinguishing-type drop-out fuse uses fast arc-extinguishing design, so that the problem that the fuse tube generates electric arc can be well avoided.
Description
Technical field
The present invention relates to a kind of fuse, specifically, relate to a kind of fuse switch that extinguishes fast fuse electric arc function that has.
Background technology
Fuse is a kind of overcurrent protective device.Fuse is mainly comprised of melt and fusion tube and the outer part such as filled.During use, fuse is series in protected circuit, when the electric current of protected circuit surpasses setting, and after certain hour, the heat fusing melt being produced by melt self, disconnects circuit, thereby plays the effect of protection.Using metallic conductor as melt and the electrical equipment of minute deenergizing; be series in circuit; when transshipping or short circuit current passes through melt, melt self fuses heating, thereby electric power system, various electrical equipment and household electrical appliance have all been played to certain protective effect.Have inverse time lag characteristic, when overload current hour, fusing time is long; When overload current is large, fusing time is short.Therefore, within the scope of certain overload current, to electric current, recover normal, fuse can not fuse, and can continue to use.
But in actual application, when there is overload or short circuit, during fuse failure, can produce larger electric arc, the burning of electric arc causes the negative impact simultaneously can damage equipment on Circuits System.Therefore, how to design the main direction of avoiding long fuse of arcing time to become research and development.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide that a kind of arc quenching effect is good, simple in structure, the fuse switch of easy maintenance.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of arc extinguishing type fuse switch, comprise porcelain insulator, described porcelain insulator top is connected with support plate by upper installation steel pin, bottom is connected with lower carriage by lower installation steel pin, in the middle of centre is provided with, steel pin is installed, and described lower carriage is connected with fusion tube, described fusion tube is provided with pressed on ring, described support plate has the arc-control device being connected with pressed on ring, and one end of described arc-control device is connected with fixed head, and the other end of described fixed head is connected with support plate.
Described arc-control device comprises shell, spring, contact, quartzy sand lump and fuse, described spring one end housing is fixedly connected with, the other end is connected with the head of contact, afterbody and the shell of described contact are fixed with rivet, described quartzy sand lump is embedded on the sidewall of shell, described quartzy sand lump center is provided with fuse, and described fuse one end is connected with fixed head.
Described quartzy sand lump is fixedly upwards provided with narrow slit in footpath, fuse place.
Described narrow slit is rectangle, the axially parallel of direction and fuse.
In described arc-control device, be also provided with an accelerator, one end of described accelerator and upper loop contacts.
Described accelerator is spring or U-shaped spring, and one end of its other end and fixed head is fixed by screw.
Shuo Liang≤1 of described narrow slit, along circumferentially uniform.
Operation principle of the present invention: during combined floodgate, the pressed on ring of fusion tube and fuse are connected, accelerator is in compressed energy-storage state, but under the effect of electric current, potential energy that fusion tube falls and the compression energy of accelerator have been offset, but fusion tube has kept balance under the effect of electric energy, with fuse continuous contact, fusion tube is in poised state, while there is overload current or short circuit current in Circuits System, fuse starts fusing, the electric arc producing during fusing occurs in the narrow slit that quartzy sand lump radially goes up, the steam that electric arc produces infiltrates in quartz sand, strongly dissociated, electric arc is extinguished rapidly, reach the effect of fast arc extinction, the compression energy of accelerator discharges simultaneously, promote fusion tube outwards motion rapidly, the time that pressed on ring and fuse are departed from is shorter, the time that produces electric arc is shorter, reduced the generation of electric arc, fusion tube disequilibrium afterwards, under the effect of potential energy, start to fall, circuit disjunction, complete open circuit protection process.
Compared with prior art, the present invention has following beneficial effect:
1. arc quenching effect is good.Melt pipe of the present invention is made containing the higher raw material of quartz sand, footpath is upwards provided with some rectangle narrow slits, when Circuits System overload or short circuit, the electric arc that fuse produces occurs in narrow slit, and the steam that electric arc produces is dissociated strongly, extinguished rapidly, the compression energy of accelerator discharges simultaneously, promotes fusion tube outwards motion rapidly, and the time that pressed on ring and fuse are departed from is shorter, the time that produces electric arc is shorter, has reduced the generation of electric arc.
2. simple in structure, cost is low.Number of spare parts of the present invention is few, simple in structure, and cost is low, is conducive to apply.
3. easy maintenance.The present invention uses clamp flange that left and right porcelain insulator is fixedly connected with, and clamp flange makes to be screwed simultaneously, and convenient disassembly, is convenient to outdoor rapid-maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of arc extinguishing type of the present invention fuse switch;
Fig. 2 is that the A of Fig. 1 is to view;
Parts title and sequence number in figure:
Embodiment
Below in conjunction with drawings and Examples, a kind of arc extinguishing type of the present invention fuse switch is described.
Embodiment 1:
As Fig. 1, shown in Fig. 2, the present invention includes porcelain insulator 1, porcelain insulator 1 top is connected with support plate 6 by upper installation steel pin, bottom is connected with lower carriage 2 by lower installation steel pin, steel pin 9 in the middle of being provided with, centre is installed, lower carriage 2 is connected with fusion tube 3, fusion tube 3 is provided with pressed on ring 4, support plate 6 has the arc-control device 5 being connected with pressed on ring 4, one end of arc-control device 5 is connected with fixed head 8, the other end of fixed head 8 is connected with support plate 6, arc-control device 5 comprises shell 10, spring 11, contact 12, quartzy sand lump 13 and fuse 14, spring 11 1 end housings 10 are fixedly connected with, the other end is connected with the head of contact 12, the afterbody of contact 12 and shell 10 use rivets are fixed, quartzy sand lump 13 is embedded on the sidewall of shell 10, quartzy sand lump 13 centers are provided with fuse 14, fuse 14 one end are connected with fixed head 8.
In the present embodiment, during combined floodgate, pressed on ring 4 is connected with fuse 14, under the effect of electric current, offset the potential energy that fusion tube 3 falls, the poised state of fusion tube 3 in work, while there is overload current or short circuit current in Circuits System, fuse starts fusing, the electric arc producing during fusing occurs in the narrow slit that quartzy sand lump 13 footpaths make progress, the steam that electric arc produces infiltrates in quartz sand, strongly dissociated, electric arc is extinguished rapidly, reach the effect of fast arc extinction, fusion tube 3 disconnects and contacting with fuse 14 afterwards, fusion tube 3 disequilibriums, under the effect of potential energy, start to fall, circuit disjunction, complete open circuit protection process.
Embodiment 2:
Be with the difference of embodiment 1: quartzy sand lump 13 is fixedly upwards provided with narrow slit in fuse 14 footpaths, place, and the quantity of narrow slit is 1.
In the present embodiment, quartzy sand lump 13 is fixedly upwards provided with narrow slit in fuse 14 footpaths, place, and the area that narrow slit absorbs electric arc is larger, and position is more reasonable, and arc quenching effect is better.
Embodiment 3:
Be: narrow slit is rectangle the axially parallel of direction and fuse 14 with the difference of embodiment 2.
In the present embodiment, because narrow slit is rectangle, the axially parallel of direction and fuse 14, so the electric arc of fuse failure more easily occurs in narrow slit, arc quenching effect is better.
Embodiment 4:
Be with the difference of embodiment 3: in arc-control device 5, be also provided with an accelerator 7, one end of accelerator 7 contacts with pressed on ring 4.
In the present embodiment, when closing a floodgate, accelerator 7 is in compressed energy-storage state, but fusion tube 3 has kept balance under the effect of electric energy, with fuse 14 continuous contacts, when fuse 14 is because of overload or during circuit fusing, the compression energy of accelerator 7 discharges, and promotes the outwards motion rapidly of fusion tube 3, makes pressed on ring 4 shorter with the time that fuse 14 departs from, the time that produces electric arc is shorter, has reduced the generation of electric arc.
Embodiment 5:
Be with the difference of embodiment 4: accelerator 7 is spring or U-shaped spring, and one end of its other end and fixed head 8 is fixed by screw.
Embodiment 6:
Be with the difference of embodiment 5: the quantity of narrow slit is 2, along circumferentially uniform.
In the present embodiment, the quantity of narrow slit is more, and the electric arc of fuse failure more easily occurs in narrow slit, and arc quenching effect is better.
Embodiment 7:
Be with the difference of embodiment 6: the quantity of described narrow slit is 3, along circumferentially uniform.
In the present embodiment, the quantity of narrow slit is more, and the electric arc of fuse failure more easily occurs in narrow slit, and arc quenching effect is better.
Embodiment 8:
Be with the difference of embodiment 7: the quantity of described narrow slit is 4, along circumferentially uniform.
In the present embodiment, the quantity of narrow slit is more, and the electric arc of fuse failure more easily occurs in narrow slit, and arc quenching effect is better.
Embodiment 9:
Be with the difference of embodiment 8: the quantity of described narrow slit is 5, along circumferentially uniform.
In the present embodiment, the quantity of narrow slit is more, and the electric arc of fuse failure more easily occurs in narrow slit, and arc quenching effect is better.
Embodiment 10:
Be with the difference of embodiment 9: the quantity of described narrow slit is 6, along circumferentially uniform.
In the present embodiment, the quantity of narrow slit is more, and the electric arc of fuse failure more easily occurs in narrow slit, and arc quenching effect is better.
Claims (7)
1. an arc extinguishing type fuse switch, comprise porcelain insulator (1), described porcelain insulator (1) top is connected with support plate (6) by upper installation steel pin, bottom is connected with lower carriage (2) by lower installation steel pin, steel pin (9) in the middle of being provided with, centre is installed, described lower carriage (2) is connected with fusion tube (3), described fusion tube (3) is provided with pressed on ring (4), it is characterized in that: described support plate (6) has the arc-control device (5) being connected with pressed on ring (4), one end of described arc-control device (5) is connected with fixed head (8), the other end of described fixed head (8) is connected with support plate (6).
2. arc extinguishing type fuse switch according to claim 1, it is characterized in that: described arc-control device (5) comprises shell (10), spring (11), contact (12), quartzy sand lump (13) and fuse (14), described spring (11) one end housings (10) are fixedly connected with, the other end is connected with the head of contact (12), the afterbody of described contact (12) and shell (10) are fixed with rivet, described quartzy sand lump (13) is embedded on the sidewall of shell (10), described quartzy sand lump (13) center is provided with fuse (14), described fuse (14) one end is connected with fixed head (8).
3. arc extinguishing type fuse switch according to claim 1 and 2, is characterized in that: described quartzy sand lump (13) fixedly fuse (14) is located footpath and is upwards provided with narrow slit.
4. arc extinguishing type fuse switch according to claim 3, is characterized in that: described narrow slit is rectangle the axially parallel of direction and fuse (14).
5. arc extinguishing type fuse switch according to claim 4, is characterized in that: in described arc-control device (5), be also provided with an accelerator (7), one end of described accelerator (7) contacts with pressed on ring (4).
6. arc extinguishing type fuse switch according to claim 5, is characterized in that: described accelerator (7) is spring or U-shaped spring, and one end of its other end and fixed head (8) is fixed by screw.
7. arc extinguishing type fuse switch according to claim 6, is characterized in that: Shuo Liang≤1 of described narrow slit, edge is circumferentially uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717560.4A CN103681157B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717560.4A CN103681157B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103681157A true CN103681157A (en) | 2014-03-26 |
| CN103681157B CN103681157B (en) | 2016-02-03 |
Family
ID=50318386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310717560.4A Expired - Fee Related CN103681157B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103681157B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289660A (en) * | 2020-12-16 | 2021-01-29 | 福州大学 | Organic matter type direct-current temperature fuse filled with quartz sand and working method thereof |
| CN115527819A (en) * | 2022-10-25 | 2022-12-27 | 国网山东省电力公司枣庄供电公司 | A dropout fuse |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5300914A (en) * | 1991-01-23 | 1994-04-05 | Cooper Power Systems, Inc. | Dropout expulsion fuse |
| US5675308A (en) * | 1994-04-07 | 1997-10-07 | S&C Electric Company | Current-limiting fuse and housing arrangement having a seal between an element and housing |
| CN2443483Y (en) * | 2000-11-01 | 2001-08-15 | 王之昌 | AC high-voltage drop fuse |
| CN2538064Y (en) * | 2002-02-03 | 2003-02-26 | 郑春生 | Multifunctional fall-down type combined fuse |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
| CN102347179A (en) * | 2010-08-05 | 2012-02-08 | 苏州闪联高压电器有限公司 | High-voltage-dropout-type fuse cutout |
-
2013
- 2013-12-22 CN CN201310717560.4A patent/CN103681157B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5300914A (en) * | 1991-01-23 | 1994-04-05 | Cooper Power Systems, Inc. | Dropout expulsion fuse |
| US5675308A (en) * | 1994-04-07 | 1997-10-07 | S&C Electric Company | Current-limiting fuse and housing arrangement having a seal between an element and housing |
| CN2443483Y (en) * | 2000-11-01 | 2001-08-15 | 王之昌 | AC high-voltage drop fuse |
| CN2538064Y (en) * | 2002-02-03 | 2003-02-26 | 郑春生 | Multifunctional fall-down type combined fuse |
| CN102347179A (en) * | 2010-08-05 | 2012-02-08 | 苏州闪联高压电器有限公司 | High-voltage-dropout-type fuse cutout |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289660A (en) * | 2020-12-16 | 2021-01-29 | 福州大学 | Organic matter type direct-current temperature fuse filled with quartz sand and working method thereof |
| CN115527819A (en) * | 2022-10-25 | 2022-12-27 | 国网山东省电力公司枣庄供电公司 | A dropout fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103681157B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102789933B (en) | Outdoor ac high voltage drop fuse | |
| CN103681157B (en) | A kind of Arc-extinguishing-tydrop-out drop-out fuse | |
| CN101888045A (en) | Circuit and method for preventing direct current arc discharge | |
| CN201215780Y (en) | Contact tip component for high-voltage isolation switch | |
| CN203659780U (en) | Fully-insulated expulsion fuse | |
| CN205211693U (en) | Warning fuse for power equipment | |
| CN103681155B (en) | A kind of Arc-extinguishing-tydrop-out drop-out fuse adopting silicon rubber porcelain insulator | |
| CN103700553A (en) | Arc-control device applied to drop-out fuse | |
| CN203812784U (en) | Outdoor low-voltage fuse type isolating switch | |
| CN202712106U (en) | Outdoor alternating-current high-voltage drop-out fuse | |
| CN202957212U (en) | High-voltage drop type fuse with arch-quenching quick-break structure | |
| CN202373539U (en) | Movable contact structure with high breaking capacity | |
| CN104347327B (en) | A kind of chopper | |
| CN201766190U (en) | Circuit capable of preventing direct current from arc discharge | |
| CN103730299A (en) | Fuse for protecting solar photovoltaic power generation system | |
| CN204537893U (en) | Control and protective switching device | |
| CN103681153B (en) | A kind of arc extinguishing type limiting fuse | |
| CN203071034U (en) | Arc extinguishing device for fuse | |
| CN202025692U (en) | Electronic creepage circuit breaker | |
| CN103700551B (en) | A kind of arc extinguishing type limiting fuse that adopts silicon rubber insulation porcelain vase | |
| CN202977344U (en) | Drop-out recloser | |
| CN203950776U (en) | J type hook hole insulating enclosed type fuse fastening assembly | |
| CN104505313B (en) | It is provided with the safety device for high-voltage power equipment of shell fragment | |
| CN203950770U (en) | Insulating enclosed type fuse fastening assembly | |
| CN201886990U (en) | A high-voltage power equipment safety device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20191222 |