CN105788991A - Fire-proof fuse for electrical machinery - Google Patents
Fire-proof fuse for electrical machinery Download PDFInfo
- Publication number
- CN105788991A CN105788991A CN201610218615.0A CN201610218615A CN105788991A CN 105788991 A CN105788991 A CN 105788991A CN 201610218615 A CN201610218615 A CN 201610218615A CN 105788991 A CN105788991 A CN 105788991A
- Authority
- CN
- China
- Prior art keywords
- end cap
- fire
- right end
- left end
- shell
- 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
- H01H85/165—Casings
- H01H85/175—Casings characterised by the casing shape or form
-
- 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
- H01H85/055—Fusible members
- H01H85/06—Fusible members characterised by the fusible material
-
- 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
- H01H85/47—Means for cooling
Landscapes
- Fuses (AREA)
Abstract
The present invention discloses a fire-proof fuse for electrical machinery. The fire-proof fuse comprises a left end cover, a right end cover, a housing and a fusion tube. The left end cover is installed at the left side of the housing, and the right end cover is installed at the right side of the housing; the left end cover, the housing and the right end cover are provided with screws, and the screws are arranged to penetrate the left end cover, the housing and right end cover in order; a cavity is formed by the left end cover, the housing and the right end cover, the fusion tube is installed in the cavity, and a fusion body is arranged in the fusion tube; binding posts are arranged on the left end cover and the right end cover, ceramic insulation and radiating fins are arranged on the binding posts, and the binding posts are connected with the fusion tube; and vent holes are arranged on the left end cover and the right end cover, and the vent holes are internally provided with a ceramic heat radiation rod penetrating the fusion tube; and the left end cover, the housing and the right end cover are in fitting matching with nuts through the screws.
Description
Technical field
The present invention relates to electricapparatus fuse, belong to power domain.
Background technology
Fuse is after exceeding setting a period of time according to electric current, makes Melt molten with the heat that himself produces, so that circuit disconnects；Use a kind of current protector that this principle is made.Fuse is widely used in high and low voltage electric distribution system and control system and electrical equipment, as the protector of short circuit and super-high-current, is apply one of most common protection device.Fuse is a kind of overcurrent protective device.Fuse is mainly made up 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 exceedes setting, and after certain time, melt self the heat fusing melt produced, make circuit disconnect, thus playing the effect of protection.Fuse is the electrical equipment of disjunction circuit using metallic conductor as melt; it is series in circuit; when overload or short circuit current are by melt, heating self is fused by melt, thus power system, various electrical equipment and household electrical appliance are all served certain protective effect.Having inverse time lag characteristic, when overcurrent is little, fusing time is long；When overcurrent is big, fusing time is short.Therefore, recovering normal to electric current within the scope of certain overcurrent, fuse will not fuse, it is possible to is continuing with.Existing fuse, it is directly connected between its copper cash and end cap and liner, owing to end cap and liner are all dismounting inconveniences, make the connection between copper cash and end cap and liner, very inconvenient in installation and dismountable, make troubles to construction, additionally, existing fuse, melt is copper material, it is impossible to use photovoltaic products.
Summary of the invention
The technical problem to be solved in the present invention is to provide simple in construction, uses, easy for installation, and simple to operate, laborsaving, mounting or dismounting are convenient, and cost is low, fuses effective, and stable performance is applied widely, long service life, has the electricapparatus fuse of safe and reliable effect.
For solving the problems referred to above, the present invention adopts the following technical scheme that electricapparatus fuse, including left end cap, right end cap, shell and fusion tube, described left end cap is arranged on the left side of shell, described right end cap is arranged on the right side of shell, described left end cap, shell and right end cap are provided with screw rod, and screw rod sequentially passes through left end cap, shell and right end cap and arranges；Forming a cavity between described left end cap, shell and right end cap, described fusion tube is arranged in cavity, is provided with melt in described fusion tube；Being equipped with binding post on described left end cap and right end cap, binding post is provided with ceramic insulation and fin, described binding post is all connected with fusion tube；Described left end cap and right end cap are equipped with air vent, in air vent, are provided through the ceramic heat-dissipating rod of fusion tube；It is fixing that described left end cap, shell and right end cap pass sequentially through the screw rod cooperation that matches with nut, fire-fighting pad it is provided with between described shell and left end cap and right end cap, described fire-fighting pad is made up of pad bottom and fire-fighting bag, pad bottom surrounding is provided with the screw hole facilitating screw rod traverse, and fire-fighting pad is arranged on shell and left end cap and right end cap by described screw rod through screw hole；Described fire-fighting bag is arranged on pad bottom, there are the wiring post holes for binding post traverse and the heat-radiating rod hole for ceramic heat-dissipating rod traverse to run through pad bottom and fire-fighting bag is arranged, binding post is through the installation of wiring post holes, and ceramic heat-dissipating rod is installed through heat-radiating rod hole；Described fire-fighting bag is the airtight bag that glass fibre fire-resistance cloth manufactures, equipped with portion of air and the inorganic salt powder with fire extinguishing effectiveness inside it.
The method of work of described electricapparatus fuse, including: when short circuit makes fusion tube internal temperature too high, internal heat is passed on fire-fighting pad by ceramic heat-dissipating rod, when fire-fighting bag is subject to high temperature, fire-fighting bag inner air expanded by heating makes it blow the little inorganic salt powder making to have fire extinguishing effectiveness inside it to be sprayed onto in enclosure cavity, it is prevented that the generation of fire.
Further, it is filled with quartz sand between described melt and fusion tube outer wall.
As preferred technical scheme, described melt adopts fine silver melt.
Electricapparatus fuse of the present invention provides the benefit that: be used in combination by arranging left end cap, shell and right end cap and screw rod, facilitates the dismounting of fuse, and when the maintenance in later stage uses；By set air vent, add the performance of ventilating within fuse；By arranging ceramic heat-dissipating rod, facilitate the heat radiation of fuse, add its service life；By arranging ceramic insulation and fin, it is therefore prevented that add the heat sinking function of fuse while electric shock；By the essence of pad of preventing fires, effectively prevent fire from occurring, add the service life of fuse.Its simple in construction, uses, easy for installation, and simple to operate, laborsaving, mounting or dismounting are convenient, and cost is low, fuses effective, and stable performance is applied widely, long service life, has safe and reliable effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described 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 premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of electricapparatus fuse of the present invention.
Fig. 2 is the top view of pad of preventing fires in the present invention.
Fig. 3 is the side view of pad of preventing fires in the present invention.
Fig. 4 is the sectional view of pad of preventing fires in the present invention.
In figure, each accompanying drawing labelling is represented sequentially as: end cap 1, right end cap 2, shell 3, fusion tube 4, screw rod 5, cavity 6, melt 7, quartz sand 8, binding post 9, air vent 10, nut 11, ceramic insulation and fin 12, ceramic heat-dissipating rod 13, fire prevention pad 14, pad bottom 14a, screw hole 14b, fire-fighting bag 14c, wiring post holes 14d, heat-radiating rod hole 14e.
Detailed description of the invention
Consult the electricapparatus fuse shown in Fig. 1, it is characterized in that: include left end cap 1, right end cap 2, shell 3 and fusion tube 4, described left end cap 1 is arranged on the left side of shell 3, described right end cap 2 is arranged on the right side of shell 3, described left end cap 1, shell 3 and right end cap 2 are provided with screw rod 5, and screw rod 5 sequentially passes through left end cap 1, shell 3 and right end cap 2 and arranges；Forming a cavity 6 between described left end cap 1, shell 3 and right end cap 2, described fusion tube 4 is arranged in cavity 6, is provided with melt 7 in described fusion tube 4；Being equipped with binding post 9 on described left end cap 1 and right end cap 2, binding post 9 is provided with ceramic insulation and fin 12, described binding post 9 is all connected with fusion tube 4；Described left end cap 1 and right end cap 2 are equipped with air vent 10, in air vent 10, are provided through the ceramic heat-dissipating rod 13 of fusion tube 4；It is fixing that described left end cap 1, shell 3 and right end cap 2 pass sequentially through screw rod 5 cooperation that matches with nut 11.
Further, it is provided with fire-fighting pad 14 between described shell 3 and left end cap 1 and right end cap 2, described fire-fighting pad 14 is made up of pad bottom 14a and fire-fighting bag 14c, pad bottom 14a surrounding is provided with the screw hole 14b facilitating screw rod 5 traverse, and fire-fighting pad 14 is arranged on shell 3 and left end cap 1 and right end cap 2 by described screw rod 5 through screw hole 14b；Described fire-fighting bag 14c is arranged on 14a on pad bottom, the wiring post holes 14d for binding post 9 traverse and the heat-radiating rod hole 14e for ceramic heat-dissipating rod 13 traverses is had to run through pad bottom 14a and fire-fighting bag 14c and arrange, binding post 9 is through the installation of wiring post holes 14, and ceramic heat-dissipating rod 13 is installed through heat-radiating rod hole 14e；Described fire-fighting bag 14c is the airtight bag that glass fibre fire-resistance cloth manufactures, equipped with portion of air and the inorganic salt powder with fire extinguishing effectiveness inside it；When short circuit makes fusion tube 4 internal temperature too high, internal heat is passed on fire-fighting pad 14 by ceramic heat-dissipating rod 13, when fire-fighting bag 14c is subject to high temperature, fire-fighting bag 14c inner air expanded by heating makes it blow the little inorganic salt powder making to have fire extinguishing effectiveness inside it to be sprayed onto in shell 3 internal cavities 6, it is prevented that the generation of fire.
Further, it is filled with quartz sand 8 between described melt 7 and fusion tube 6 outer wall.
Further, described melt 7 adopts fine silver melt.
Claims (1)
1. the method for work of an electricapparatus fuse, it is characterized in that: electricapparatus fuse includes: left end cap (1), right end cap (2), shell (3) and fusion tube (4), described left end cap (1) is arranged on the left side of shell (3), described right end cap (2) is arranged on the right side of shell (3), and screw rod (5) sequentially passes through left end cap (1), shell (3) and right end cap (2) and arranges；Forming a cavity (6) between described left end cap (1), shell (3) and right end cap (2), described fusion tube (4) is arranged in cavity (6), is provided with melt (7) in described fusion tube (4)；Being equipped with binding post (9) on described left end cap (1) and right end cap (2), described binding post (9) is all connected with fusion tube (4)；Described left end cap (1) and right end cap (2) are equipped with air vent (10), in air vent (10), are provided through ceramic heat-dissipating rod (13) of fusion tube (4)；
It is provided with fire-fighting pad (14) between described shell (3) and left end cap (1) and right end cap (2), described fire-fighting pad (14) is made up of pad bottom (14a) and fire-fighting bag (14c), pad bottom (14a) surrounding is provided with the screw hole (14b) facilitating screw rod (5) traverse, and fire-fighting pad (14) is arranged on shell (3) and left end cap (1) and right end cap (2) by described screw rod (5) through screw hole (14b)；Described fire-fighting bag (14c) is arranged on pad bottom (14a), there is the wiring post holes (14d) for binding post (9) traverse and pad bottom (14a) is run through in the heat-radiating rod hole (14e) for ceramic heat-dissipating rod (13) traverse and fire-fighting bag (14c) is arranged, binding post (9) is through the installation of wiring post holes (14), and ceramic heat-dissipating rod (13) is installed through heat-radiating rod hole (14e)；The airtight bag that described fire-fighting bag (14c) manufactures for glass fibre fire-resistance cloth, equipped with portion of air and the inorganic salt powder with fire extinguishing effectiveness inside it；
Described method of work, including: when short circuit makes fusion tube (4) internal temperature too high, internal heat is passed on fire-fighting pad (14) by ceramic heat-dissipating rod (13), when fire-fighting bag (14c) is subject to high temperature, fire-fighting bag (14c) inner air expanded by heating makes it blow the little inorganic salt powder making to have fire extinguishing effectiveness inside it to be sprayed onto in shell (3) internal cavities (6), it is prevented that the generation of fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218615.0A CN105788991A (en) | 2014-09-21 | 2014-09-21 | Fire-proof fuse for electrical machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218615.0A CN105788991A (en) | 2014-09-21 | 2014-09-21 | Fire-proof fuse for electrical machinery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410481591.9A Division CN104282512B (en) | 2014-09-21 | 2014-09-21 | Electricapparatus fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105788991A true CN105788991A (en) | 2016-07-20 |
Family
ID=56395134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218615.0A Pending CN105788991A (en) | 2014-09-21 | 2014-09-21 | Fire-proof fuse for electrical machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105788991A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1114325A (en) * | 1966-02-22 | 1968-05-22 | James Russell Mccaughna | Improvements in or relating to electric fuses |
| US5858454A (en) * | 1993-04-30 | 1999-01-12 | Koa Kabushiki Kaisha | Overcurrent protection device |
| CN2397600Y (en) * | 1999-05-17 | 2000-09-20 | 赵素男 | High voltage fuse |
| CN202103002U (en) * | 2011-06-29 | 2012-01-04 | 上海电器陶瓷厂有限公司 | Fuse for communication protection |
| CN203017627U (en) * | 2013-01-01 | 2013-06-26 | 杭州小尔科技有限公司 | Outdoor antiflaming special extinguishment net |
-
2014
- 2014-09-21 CN CN201610218615.0A patent/CN105788991A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1114325A (en) * | 1966-02-22 | 1968-05-22 | James Russell Mccaughna | Improvements in or relating to electric fuses |
| US5858454A (en) * | 1993-04-30 | 1999-01-12 | Koa Kabushiki Kaisha | Overcurrent protection device |
| CN2397600Y (en) * | 1999-05-17 | 2000-09-20 | 赵素男 | High voltage fuse |
| CN202103002U (en) * | 2011-06-29 | 2012-01-04 | 上海电器陶瓷厂有限公司 | Fuse for communication protection |
| CN203017627U (en) * | 2013-01-01 | 2013-06-26 | 杭州小尔科技有限公司 | Outdoor antiflaming special extinguishment net |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |