CN205303410U - Fast acting fuse - Google Patents
Fast acting fuse Download PDFInfo
- Publication number
- CN205303410U CN205303410U CN201620021752.0U CN201620021752U CN205303410U CN 205303410 U CN205303410 U CN 205303410U CN 201620021752 U CN201620021752 U CN 201620021752U CN 205303410 U CN205303410 U CN 205303410U
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- CN
- China
- Prior art keywords
- cooling fan
- insulation shell
- external insulation
- fuse
- top cover
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Abstract
The utility model relates to a fast acting fuse, including outer insulating casing, outer insulating casing upper end is provided with the top cover labyrinth, and the lower extreme is provided with the lower seal and covers, outer insulating casing adopts bolt assembly to be connected between covering with top cover labyrinth, lower seal, top cover labyrinth central point puts and is provided with the connector, lower seal lid central point puts and is provided with down the connector, go up the connector, be connected with the fuse -element through the screw between the connector down, the fuse -element is located the internal portion of internal insulation, be provided with fixed protruding cover on outer insulating casing one side, the inside cooling fan that is provided with of fixed protruding cover, the cooling fan medial surface contacts with spacing lug, be provided with a plurality of louvre on outer insulating casing one side. The utility model discloses cooling fan produces cold wind and emits into the internal portion of internal insulation in the use, walks the cooling with the heat that the fuse -element produced through the wind belt, has strengthened the radiating effect effectively.
Description
Technical field
This utility model relates to technical field of electric equipment, particularly relates to a kind of fastp-acting fuse.
Background technology
Fuse is after exceeding setting certain time according to electric current, makes Melt molten with the heat that himself produces, so that the current protector that the principle that circuit disconnects is made. Fuse is widely used in low-voltage distribution system and control system and electrical equipment, as short circuit and overcurrent protection, is apply one of most common protection device.
Fuse is a kind of overcurrent protection electrical equipment. Fuse is mainly by melt and two parts of fusion tube and outer filled etc. form. 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, play the effect of protection.
The electrical equipment of disjunction circuit using metallic conductor as melt. Being 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 played a protective role. Having inverse time lag characteristic, when overcurrent is little, fusing time is long; When overcurrent is big, fusing time is short. Fastp-acting fuse, in the protection process to circuit, plays a part can not be substituted. At present, fastp-acting fuse practice be exist subject matter be: dispel the heat relatively difficult.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of fastp-acting fuse.
This utility model is to be achieved through the following technical solutions:
A kind of fastp-acting fuse, including external insulation shell, described external insulation shell upper end is provided with top cover labyrinth, lower end is provided with lower sealing cover, described external insulation shell and top cover labyrinth, bolt assembly is adopted to be connected between lower sealing cover, described top cover labyrinth center is provided with upper binding head, described lower sealing cover center is provided with lower union joint, described upper binding head, it is connected with melt by screw between lower union joint, described melt is positioned at inside insulator, described external insulation shell side is provided with fixing convex set, described fixing convex set is internally provided with cooling fan, described cooling fan medial surface contacts with spacing block set, described external insulation shell side is provided with several louvres.
As optimal technical scheme of the present utility model, described fixing is formed in one between convex set and external insulation shell.
As optimal technical scheme of the present utility model, described cooling fan air intake direction is towards interior insulator.
As optimal technical scheme of the present utility model, described louvre is generally circular in shape or oval.
Compared with prior art, the beneficial effects of the utility model are: this utility model is by arranging cooling fan, louvre, such fuse in use cooling fan produces cold wind and is drained into inside interior insulator, the heat that melt produces is taken away cooling by wind, effectively enhances radiating effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A place partial enlarged drawing in Fig. 1.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Referring to Fig. 1, Fig. 2, Fig. 1 is structural representation of the present utility model; Fig. 2 is A place partial enlarged drawing in Fig. 1.
A kind of fastp-acting fuse, including external insulation shell 1, described external insulation shell 1 upper end is provided with top cover labyrinth 2, lower end is provided with lower sealing cover 3, described external insulation shell 1 and top cover labyrinth 2, bolt assembly is adopted to be connected between lower sealing cover 3, described top cover labyrinth 2 center is provided with upper binding head 4, described lower sealing cover 3 center is provided with lower union joint 5, described upper binding head 4, it is connected with melt 6 by screw between lower union joint 5, it is internal that described melt 6 is positioned at insulator 7, described external insulation shell 1 side is provided with fixing convex set 101, wherein said fixing is formed in one between convex set 101 and external insulation shell 1. described fixing convex set 101 is internally provided with cooling fan 8, and the discharge of heat, towards interior insulator 7, is so easy in wherein said cooling fan 8 air intake direction.
Described cooling fan 8 medial surface contacts with spacing block set 103, and described external insulation shell 1 side is provided with several louvres 102, and wherein said louvre 102 is generally circular in shape or oval. This utility model in use cooling fan 8 produces cold wind and is drained into interior insulator 7 inside, by wind, the heat that melt 6 produces is taken away cooling, effectively enhances radiating effect.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral; Can be mechanically connected, it is also possible to be electrical connection; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals. For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (4)
1. a fastp-acting fuse, including external insulation shell (1), described external insulation shell (1) upper end is provided with top cover labyrinth (2), lower end is provided with lower sealing cover (3), described external insulation shell (1) and top cover labyrinth (2), bolt assembly is adopted to be connected between lower sealing cover (3), described top cover labyrinth (2) center is provided with upper binding head (4), described lower sealing cover (3) center is provided with lower union joint (5), described upper binding head (4), it is connected with melt (6) by screw between lower union joint (5), it is internal that described melt (6) is positioned at insulator (7), it is characterized in that: described external insulation shell (1) side is provided with fixing convex set (101), described fixing convex set (101) is internally provided with cooling fan (8), described cooling fan (8) medial surface contacts with spacing block set (103), described external insulation shell (1) side is provided with several louvres (102).
2. fastp-acting fuse according to claim 1, it is characterised in that: described fixing is formed in one between convex set (101) and external insulation shell (1).
3. fastp-acting fuse according to claim 1, it is characterised in that: described cooling fan (8) air intake direction is towards interior insulator (7).
4. fastp-acting fuse according to claim 1, it is characterised in that: described louvre (102) is generally circular in shape or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021752.0U CN205303410U (en) | 2016-01-11 | 2016-01-11 | Fast acting fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021752.0U CN205303410U (en) | 2016-01-11 | 2016-01-11 | Fast acting fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205303410U true CN205303410U (en) | 2016-06-08 |
Family
ID=56475536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021752.0U Active CN205303410U (en) | 2016-01-11 | 2016-01-11 | Fast acting fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205303410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481903A (en) * | 2017-09-04 | 2017-12-15 | 苏州恺恩奥自动化有限公司 | A kind of fuse for being easy to quickly fix |
-
2016
- 2016-01-11 CN CN201620021752.0U patent/CN205303410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481903A (en) * | 2017-09-04 | 2017-12-15 | 苏州恺恩奥自动化有限公司 | A kind of fuse for being easy to quickly fix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |