CN103681155A - Arc-extinguishing type drop-out fuse using silicon rubber porcelain insulator - Google Patents
Arc-extinguishing type drop-out fuse using silicon rubber porcelain insulator Download PDFInfo
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- CN103681155A CN103681155A CN201310716730.7A CN201310716730A CN103681155A CN 103681155 A CN103681155 A CN 103681155A CN 201310716730 A CN201310716730 A CN 201310716730A CN 103681155 A CN103681155 A CN 103681155A
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- arc
- fuse
- silicon rubber
- extinguishing type
- porcelain insulator
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Abstract
The invention discloses an arc-extinguishing type drop-out fuse using a silicon rubber porcelain insulator, aiming at providing a drop-out fuse with a good arc-extinguishing effect, a simple structure, and simple and convenient maintenance. The arc-extinguishing type drop-out fuse using the silicon rubber porcelain insulator comprises the porcelain insulator, wherein the upper part of the porcelain insulator is connected to a support plate through upper mounting steel pins, the lower part thereof is connected to a lower bracket through lower mounting steel pins, and the middle part thereof is provided with middle mounting steel pins; the lower bracket is connected to a fuse tube; the fuse tube is provided with an upper ring; an arc-extinguishing device in connection with the upper ring is arranged below the support plate; one end of the arc-extinguishing device is connected to a fixed plate, and the other end of the fixed plate is connected to the support plate; the arc-extinguishing device comprises an outer shell, a spring, a contact piece, a quartz sand block and a fuse; one end of the spring is fixedly connected to the outer shell while the other end thereof is connected to the head part of the contact piece; the tail part of the contact piece and the outer shell are fixed by rivets; the quartz sand block is embedded on the sidewall of the outer shell; the fuse is arranged in the center of the quartz sand block; one end of the fuse is connected to the fixed plate. The arc-extinguishing type drop-out fuse using the silicon rubber porcelain insulator can well prevent the fuse tube from generating electric arc by using the rapid arc-extinguishing design.
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 that adopts silicon rubber insulation porcelain vase, comprise porcelain insulator, described porcelain insulator adopts silicon rubber material to make, 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, steel pin in the middle of being provided with, centre is installed, 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, 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 a kind of structural representation that adopts the arc extinguishing type fuse switch of silicon rubber insulation porcelain vase of the present invention;
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 fuse switch that adopts silicon rubber insulation porcelain vase of the present invention is described.
Embodiment 1:
As Fig. 1, shown in Fig. 2, the present invention includes porcelain insulator 1, porcelain insulator 1 adopts silicon rubber material to make, 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 that adopts silicon rubber insulation porcelain vase, 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 porcelain insulator (1) adopts silicon rubber material to make, 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. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase 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. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase 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. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase according to claim 3, is characterized in that: described narrow slit is rectangle the axially parallel of direction and fuse (14).
5. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase 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. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase 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. the arc extinguishing type fuse switch of employing silicon rubber insulation porcelain vase 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 |
|---|---|---|---|
| CN201310716730.7A CN103681155B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse adopting silicon rubber porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716730.7A CN103681155B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse adopting silicon rubber porcelain insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103681155A true CN103681155A (en) | 2014-03-26 |
| CN103681155B CN103681155B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310716730.7A Expired - Fee Related CN103681155B (en) | 2013-12-22 | 2013-12-22 | A kind of Arc-extinguishing-tydrop-out drop-out fuse adopting silicon rubber porcelain insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103681155B (en) |
Citations (5)
| 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 |
| CN2924778Y (en) * | 2006-04-25 | 2007-07-18 | 张和生 | Outdoor 12KV high-voltage drop-off sectionalizer |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
-
2013
- 2013-12-22 CN CN201310716730.7A patent/CN103681155B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| CN2924778Y (en) * | 2006-04-25 | 2007-07-18 | 张和生 | Outdoor 12KV high-voltage drop-off sectionalizer |
| CN202003930U (en) * | 2011-02-13 | 2011-10-05 | 吉林市能兴电力设备有限公司 | Novel fuse |
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| Publication number | Publication date |
|---|---|
| CN103681155B (en) | 2016-02-03 |
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Granted publication date: 20160203 Termination date: 20191222 |