CN103700553A - Arc-control device applied to drop-out fuse - Google Patents
Arc-control device applied to drop-out fuse Download PDFInfo
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- CN103700553A CN103700553A CN201310717526.7A CN201310717526A CN103700553A CN 103700553 A CN103700553 A CN 103700553A CN 201310717526 A CN201310717526 A CN 201310717526A CN 103700553 A CN103700553 A CN 103700553A
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- arc
- fuse
- shell
- control device
- narrow slit
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Abstract
The invention discloses an arc-control device applied to a drop-out fuse and aims to provide the arc-control device applied to the drop-out fuse which is good in arc-control effect, simple in structure and convenient to maintain. The arc-control device comprises a shell and a spring, wherein one end of the spring is fixedly connected with the shell, the other end of the spring is connected with the head part of a contact, the tail part of the contact is fixed with the shell through a rivet, the side wall of the shell is inlaid with a quartz sand block, the center of the quartz sand block is provided with a fusion wire, and one end of the fusion wire is connected with a screw. Due to the adoption of a fast arc-control design, the problem that an electric arc is generated by a fusion tube is well solved.
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 the arc-control device that a kind of arc quenching effect is good, simple in structure, the fuse switch of easy maintenance is used.
For achieving the above object, the present invention is achieved by the following scheme:
The arc-control device that a kind of fuse switch is used, comprise shell and spring, described spring one end is fixedly connected with shell, the other end is connected with the head of contact, afterbody and the shell of described contact are fixed with rivet, on the sidewall of described shell, be inlaid with quartzy sand lump, described quartzy sand lump center is provided with fuse, and described fuse one end is connected with screw.
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.
Described shell is provided with an accelerator, and one end of described accelerator is fixed by screws in shell.
Described accelerator is spring or U-shaped spring.
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 the arc-control device of a kind of fuse switch use of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Parts title and sequence number in figure:
Shell 1, spring 2, contact 3, quartzy sand lump 4, fuse 5, accelerator 6, screw 7.
Embodiment
Below in conjunction with drawings and Examples, the arc-control device that a kind of fuse switch of the present invention is used is described.
Embodiment 1:
As shown in Figure 1 and Figure 2, the present invention comprises shell 1 and spring 2, spring 2 one end are fixedly connected with shell 1, the other end is connected with the head of contact 3, the afterbody of contact 3 and shell 1 use rivet are fixed, on the sidewall of shell 1, be inlaid with quartzy sand lump 4, quartzy sand lump 4 centers are provided with fuse 5, and fuse 5 one end are connected with screw 7.
In the present embodiment, during combined floodgate, the pressed on ring of fusion tube and fuse 5 are connected, under the effect of electric current, offset the potential energy that fusion tube falls, the poised state of fusion tube in work, while there is overload current or short circuit current in Circuits System, fuse 5 starts fusing, the electric arc producing during fusing occurs in the narrow slit that quartzy sand lump 4 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 disconnects and contacting with fuse 5 afterwards, fusion tube disequilibrium, 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 4 is fixedly upwards provided with narrow slit in fuse 5 footpaths, place, and the quantity of narrow slit is 1.
In the present embodiment, quartzy sand lump 4 is fixedly upwards provided with narrow slit in fuse 5 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 5 with the difference of embodiment 2.
In the present embodiment, because narrow slit is rectangle, the axially parallel of direction and fuse 5, 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: shell 1 is provided with an accelerator 6, accelerator 6 is spring, and one end of accelerator 6 is fixed in shell 1 by screw 7.
In the present embodiment, when closing a floodgate, accelerator 6 is in compressed energy-storage state, but fusion tube has kept balance under the effect of electric energy, with fuse 5 continuous contacts, when fuse 5 is because of overload or during circuit fusing, the compression energy of accelerator 6 discharges, and promotes the outwards motion rapidly of fusion tube, and the time that fusion tube pressed on ring and fuse 5 are departed from is shorter, 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 6U type spring.
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 (6)
1. the arc-control device that a fuse switch is used, comprise shell (1) and spring (2), described spring (2) one end is fixedly connected with shell (1), the other end is connected with the head of contact (3), the afterbody of described contact (3) and shell (1) are fixed with rivet, it is characterized in that: on the sidewall of described shell (1), be inlaid with quartzy sand lump (4), described quartzy sand lump (4) center is provided with fuse (5), and described fuse (5) one end is connected with screw (7).
2. the arc-control device that fuse switch according to claim 1 is used, is characterized in that: described quartzy sand lump (4) fixedly fuse (5) is located footpath and is upwards provided with narrow slit.
3. the arc-control device that fuse switch according to claim 1 and 2 is used, is characterized in that: described narrow slit is rectangle the axially parallel of direction and fuse (5).
4. the arc-control device that fuse switch according to claim 4 is used, is characterized in that: described shell (1) is provided with an accelerator (6), one end of described accelerator (6) is fixed in shell (1) by screw (7).
5. the arc-control device that fuse switch according to claim 5 is used, is characterized in that: described accelerator (7) is spring or U-shaped spring.
6. the arc-control device that fuse switch according to claim 6 is used, is characterized in that: Shuo Liang≤1 of described narrow slit, and along circumferentially uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717526.7A CN103700553A (en) | 2013-12-22 | 2013-12-22 | Arc-control device applied to drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717526.7A CN103700553A (en) | 2013-12-22 | 2013-12-22 | Arc-control device applied to drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103700553A true CN103700553A (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310717526.7A Pending CN103700553A (en) | 2013-12-22 | 2013-12-22 | Arc-control device applied to drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121571A (en) * | 2021-10-28 | 2022-03-01 | 宁通电气科技有限公司 | Intelligent circuit protector for power distribution system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308515A (en) * | 1980-02-07 | 1981-12-29 | Commercial Enclosed Fuse Co. | Fuse apparatus for high electric currents |
| CN200969332Y (en) * | 2006-10-26 | 2007-10-31 | 张立平 | Fuse core of high breaking high-voltage drop-off fuse |
| CN102789933A (en) * | 2012-08-03 | 2012-11-21 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
| CN203205369U (en) * | 2013-04-12 | 2013-09-18 | 浙江西熔电气有限公司 | High voltage fuse |
| CN203250710U (en) * | 2013-05-15 | 2013-10-23 | 上海金山电器厂有限公司 | Fuse |
-
2013
- 2013-12-22 CN CN201310717526.7A patent/CN103700553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308515A (en) * | 1980-02-07 | 1981-12-29 | Commercial Enclosed Fuse Co. | Fuse apparatus for high electric currents |
| CN200969332Y (en) * | 2006-10-26 | 2007-10-31 | 张立平 | Fuse core of high breaking high-voltage drop-off fuse |
| CN102789933A (en) * | 2012-08-03 | 2012-11-21 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
| CN203205369U (en) * | 2013-04-12 | 2013-09-18 | 浙江西熔电气有限公司 | High voltage fuse |
| CN203250710U (en) * | 2013-05-15 | 2013-10-23 | 上海金山电器厂有限公司 | Fuse |
Non-Patent Citations (1)
| Title |
|---|
| 丁明道: "熔断器的结构元件", 《低压电器技术情报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121571A (en) * | 2021-10-28 | 2022-03-01 | 宁通电气科技有限公司 | Intelligent circuit protector for power distribution system |
| CN114121571B (en) * | 2021-10-28 | 2023-11-21 | 宁通电气科技有限公司 | Intelligent circuit protector for power distribution system |
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Application publication date: 20140402 |