CN105428181A - Fuse protector - Google Patents
Fuse protector Download PDFInfo
- Publication number
- CN105428181A CN105428181A CN201510803641.5A CN201510803641A CN105428181A CN 105428181 A CN105428181 A CN 105428181A CN 201510803641 A CN201510803641 A CN 201510803641A CN 105428181 A CN105428181 A CN 105428181A
- Authority
- CN
- China
- Prior art keywords
- fuse
- post insulator
- indicating device
- cartridge
- touch base
- 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
Links
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
- H01H85/05—Component parts thereof
- H01H85/18—Casing fillings, e.g. powder
-
- 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
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
-
- 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
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
Abstract
The invention discloses a fuse protector. The fuse protector comprises a seat plate, a post insulator, a contact seat and a fuse tube, wherein the post insulator is arranged on a seat plate and fixedly connected with the seat plate; the contact seat and the fuse tube are arranged on the post insulator; the contact seat is fixedly connected with the post insulator; end caps are arranged at two ends of the fuse tube and fixedly connected with the fuse tube; a core and quartz sand are arranged in the fuse tube; the core is wound with a fuse; the fuse is electrically connected with the contact seat; an indicator and an indicator fuse are arranged in the core; the indicator is electrically connected with the contact seat through the indicator fuse; and the indicator fuse is spirally arranged. The fuse protector is compact in structure, high in stability, capable of eliminating electric arc generated during fusing, and safe and reliable to use.
Description
Technical field
The present invention relates to a kind of electrical equipment technical field, particularly relate to a kind of fuse.
Background technology
Melt rated current is not equal to fuse rated current, melt rated current is selected by the load current of protected equipment, fuse rated current should be greater than melt rated current, coordinate with main electrical equipment and determine, fuse is primarily of melt, shell and bearing 3 part composition, wherein melt is the key element controlling operating chacteristics, the material of melt, size and dimension determines operating chacteristics, melt material is divided into low melting point and high-melting-point two class, low melting material is as plumbous and lead alloy, the low easy fusing of its fusing point, because its resistivity is larger, therefore the sectional dimension making melt is larger, the metal vapors produced during fusing is more, be only applicable to the fuse of low breaking capacity, materials with high melting point is as copper, silver, its fusing point is high, be not easy fusing, but because its resistivity is lower, can be made into the sectional dimension less than low fusing point melt, the metal vapors produced during fusing is few, be applicable to the fuse of high breaking capacity, the shape of melt is divided into thread and banded two kinds, the shape changing variable cross-section significantly can change the operating chacteristics of fuse, fuse has various different operating chacteristics curve, go for the needs of dissimilar object of protection.
The melt of cartridge fuse is contained in fuse-link, then be inserted in bearing or be directly connected on circuit and use, fuse-link is that two ends cover has metal cap or the complete hermetic insulated tube with contact knife, if fill with quartz sand in the insulated tube of this fuse, then during breaking current, there is metering function, greatly can improve breaking capacity, therefore also known as making High Rupturing Capacity fuse, if vacuumize in pipe, then be called vacuum fuse, if fill with SF6 gas in pipe, then be called SF6 fuse, its objective is and improve arc extinction performance, due to quartz sand, vacuum and SF6 gas all have good insulation property, therefore this fuse is not only applicable to low pressure is also applicable to high pressure, expulsion fuse is contained in by melt in the insulated tube be made up of solid gas generant material, solid gas generant material can adopt electrician to highlight cardboard or pmma material etc., when short circuit current is by melt, melt fuses generation electric arc immediately, high-temperature electric arc makes solid gas generant material decompose rapidly and produces a large amount of gases at high pressure, thus ionized gas band electric arc is sprayed at pipe two ends, send great acousto-optic, and when alternating current zero passage extinguish arcs and breaking current, insulated tube is normally contained on an insulating support, composition fuse is overall, sometimes movable is made in insulated tube upper end, throw off immediately after breaking current and fall, this kind of expulsion fuse is commonly called as drop out fuse, generally be applicable to voltage higher than the outdoor occasion of 6 kilovolts, current existing fuse structure is simple, certain potential safety hazard is there is in use procedure, structural stability is poor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of compact conformation, good stability, the electric arc produced when can eliminate fusing, safe and reliable fuse.
For solving the problem, the present invention adopts following technical scheme: a kind of fuse, comprise seat board, post insulator, touch base and cartridge fuse, described post insulator is located on seat board, described post insulator is fixedly connected with panel seat, described touch base and cartridge fuse are located on post insulator, described touch base is fixedly connected with post insulator, described cartridge fuse two ends are provided with end cap, described end cap is fixedly connected with cartridge fuse, seat board, post insulator and touch base can holding structure reliable and stable, post insulator has good insulation effect, the electric arc that quartz sand in cartridge fuse produces when can eliminate fusing, safe and reliable, indicating device can disconnect by indicating circuit after indicating device fuse failure, conveniently overhaul, fuse and quartz sand is provided with in described cartridge fuse, described fuse is wound with fuse, described fuse and touch base are electrically connected, indicating device and indicating device fuse is provided with in described fuse, described indicating device is electrically connected by indicating device fuse and touch base, described indicating device fuse is arranged twist.
As preferably, described end cap is provided with rubber cushion, keeps good insulation property.
As preferably, described quartz sand diameter is 2-3mm, can eliminate the electric arc that fusing produces.
As preferably, described cartridge fuse, in being horizontally disposed with, reduces taking of space, conveniently installs.
As preferably, described fuse is porcelain coremaking, keeps good insulation effect.
This technical scheme has compact conformation, good stability, the electric arc produced when can eliminate fusing, safe and reliable feature.
The invention has the beneficial effects as follows: the seat board of setting, post insulator and touch base can holding structure reliable and stable, post insulator has good insulation effect, the electric arc that quartz sand in cartridge fuse produces when can eliminate fusing, safe and reliable, indicating device can disconnect by indicating circuit after indicating device fuse failure, conveniently overhauls.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of fuse of the present invention.
Embodiment
Consult shown in Fig. 1, a kind of fuse, comprise seat board 1, post insulator 2, touch base 3 and cartridge fuse 4, described post insulator 2 is located on seat board 1, described post insulator 2 is fixedly connected with panel seat 1, described touch base 3 and cartridge fuse 4 are located on post insulator 2, described touch base 3 is fixedly connected with post insulator 2, described cartridge fuse 4 two ends are provided with end cap 5, in use, by seat board 1, fuse is arranged on working region, touch base 3 is linked in circuit, during current overload, fuse 8 in cartridge fuse 4 fuses, holding circuit safety, indicating device fuse 10 on indicating device 9 fuses, overhaul after conveniently discovering, described end cap 5 is fixedly connected with cartridge fuse 4, fuse 6 and quartz sand 7 is provided with in described cartridge fuse 4, described fuse 6 is wound with fuse 8, described fuse 8 is electrically connected with touch base 3, indicating device 9 and indicating device fuse 10 is provided with in described fuse 6, described indicating device 9 is electrically connected by indicating device fuse 10 and touch base 3, described indicating device fuse 10 is arranged twist.
Described end cap 5 is provided with rubber cushion 11, in use, keeps good insulation property.
Described quartz sand 7 diameter is 2-3mm, in use, can eliminate the electric arc that fusing produces.
Described cartridge fuse 4, in being horizontally disposed with, in use, reducing taking of space, conveniently installs.
Described fuse 6 is porcelain coremaking, in use, keeps good insulation effect.
In use, by seat board 1, fuse is arranged on working region, touch base 3 is linked in circuit, and during current overload, the fuse 8 in cartridge fuse 4 fuses, holding circuit safety, and the indicating device fuse 10 on indicating device 9 fuses, and overhauls after conveniently discovering.
The invention has the beneficial effects as follows: the seat board of setting, post insulator and touch base can holding structure reliable and stable, post insulator has good insulation effect, the electric arc that quartz sand in cartridge fuse produces when can eliminate fusing, safe and reliable, indicating device can disconnect by indicating circuit after indicating device fuse failure, conveniently overhauls.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection scope of the present invention; therefore, the protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. a fuse, it is characterized in that: comprise seat board, post insulator, touch base and cartridge fuse, described post insulator is located on seat board, described post insulator is fixedly connected with panel seat, described touch base and cartridge fuse are located on post insulator, described touch base is fixedly connected with post insulator, described cartridge fuse two ends are provided with end cap, described end cap is fixedly connected with cartridge fuse, fuse and quartz sand is provided with in described cartridge fuse, described fuse is wound with fuse, described fuse and touch base are electrically connected, indicating device and indicating device fuse is provided with in described fuse, described indicating device is electrically connected by indicating device fuse and touch base, described indicating device fuse is arranged twist.
2. fuse according to claim 1, is characterized in that: described end cap is provided with rubber cushion.
3. fuse according to claim 1, is characterized in that: described quartz sand diameter is 2-3mm.
4. fuse according to claim 1, is characterized in that: described cartridge fuse is in being horizontally disposed with.
5. fuse according to claim 1, is characterized in that: described fuse is porcelain coremaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803641.5A CN105428181A (en) | 2015-11-20 | 2015-11-20 | Fuse protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803641.5A CN105428181A (en) | 2015-11-20 | 2015-11-20 | Fuse protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428181A true CN105428181A (en) | 2016-03-23 |
Family
ID=55506312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510803641.5A Pending CN105428181A (en) | 2015-11-20 | 2015-11-20 | Fuse protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403248A (en) * | 2020-04-29 | 2020-07-10 | 漳州市台联电力科技有限公司 | Fuse that overload protection performance is strong |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137028Y (en) * | 1992-07-07 | 1993-06-23 | 湖南电力电瓷电器厂分厂 | High-voltage current-limiting fuse for potential transformer |
| CN204102846U (en) * | 2014-08-21 | 2015-01-14 | 宁波市镇海米丰节能环保科技有限公司 | A kind of fuse of easy accessibility |
| CN104934272A (en) * | 2015-07-15 | 2015-09-23 | 海安县天星电工材料有限公司 | High voltage fuse |
-
2015
- 2015-11-20 CN CN201510803641.5A patent/CN105428181A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137028Y (en) * | 1992-07-07 | 1993-06-23 | 湖南电力电瓷电器厂分厂 | High-voltage current-limiting fuse for potential transformer |
| CN204102846U (en) * | 2014-08-21 | 2015-01-14 | 宁波市镇海米丰节能环保科技有限公司 | A kind of fuse of easy accessibility |
| CN104934272A (en) * | 2015-07-15 | 2015-09-23 | 海安县天星电工材料有限公司 | High voltage fuse |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403248A (en) * | 2020-04-29 | 2020-07-10 | 漳州市台联电力科技有限公司 | Fuse that overload protection performance is strong |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3244437A1 (en) | High-voltage direct-current temperature fuse | |
| CN102254734A (en) | High-voltage single-fracture vacuum arc extinguishing chamber | |
| CN203398063U (en) | Fuse in the shape of n | |
| CN102760607B (en) | Pressure-operated load switch for gas-insulated ring main unit | |
| CN104835679A (en) | Circuit breaker of gas-insulated switchgear with fixed part of decreased length | |
| CN104769694A (en) | A pole part of a medium voltage circuit breaker arrangement comprising a triggered gap unit | |
| JPS6264015A (en) | Fuse for ac power circuit | |
| CN201215780Y (en) | Contact tip component for high-voltage isolation switch | |
| CN105428181A (en) | Fuse protector | |
| US2917605A (en) | Fusible devices | |
| CN104752115B (en) | Simple load disconnector used for PRW drop type fuse | |
| CN202957212U (en) | High-voltage drop type fuse with arch-quenching quick-break structure | |
| CN202712106U (en) | Outdoor alternating-current high-voltage drop-out fuse | |
| US2143038A (en) | Fuse | |
| CN111223731A (en) | Liquid metal self-recovery fuse | |
| SU1498404A3 (en) | High-voltage installation | |
| CN200969333Y (en) | High breaking high-voltage drop-off fuse | |
| CN205406461U (en) | High -tension transmission automatic safety device | |
| CN205177758U (en) | High -voltage fuse | |
| CN106024518A (en) | Thermal fuse | |
| CN106558447B (en) | A kind of vacuum circuit breaker contact system | |
| CN204391027U (en) | A kind of novel evacuated fuse | |
| CN105304427A (en) | High-voltage fuse | |
| CN203787378U (en) | Over-current protector with voltage-releasing function | |
| US2283656A (en) | Circuit interrupter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |