CN202616176U - Sealing fuse link possessing over-current protection - Google Patents
Sealing fuse link possessing over-current protection Download PDFInfo
- Publication number
- CN202616176U CN202616176U CN 201120540121 CN201120540121U CN202616176U CN 202616176 U CN202616176 U CN 202616176U CN 201120540121 CN201120540121 CN 201120540121 CN 201120540121 U CN201120540121 U CN 201120540121U CN 202616176 U CN202616176 U CN 202616176U
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- fuse
- link
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- applicator
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Abstract
The utility model discloses a sealing fuse link possessing over-current protection. The fuse link comprises a termination electrode, a shell and a fusible body arranged in an inner cavity of the shell. A substance which is beneficial to generate an arc-extinguishing medium is arranged in the fuse link. The substance which is helpful for arc extinguishing can be coated on an inner wall of the shell, a surface of the termination electrode in the shell and a fusible body surface as a colloid form or be coated on the surface of one or two parts. According to the fuse link of the utility model, the some substances which can decompose and generate the arc-extinguishing medium at a certain temperature are coated on proper positions of the internal surface of a fuse. At a fusing stage, the substances generate a lot of gases so that a pressure in a tube of the fuse is greatly increased; fault current attenuation is accelerated; and the arc extinguishing is accelerated too.
Description
Technical field
The utility model relates to a kind of fuse-link, particularly a kind of low pressure fuse-link and small-sized tubular fuse-link and microminiature fuse-link.
Background technology
In electrical equipment and Electric Design day by day under the requirement of miniaturization and high security; Hoping does not on the one hand have higher breaking capacity under the condition of enlarged in the cartridge fuse size; Can bear higher voltage and bigger short circuit current, hope that on the one hand being used for the large-sized fuse-link of the high short circuit current of high voltage wants reduced volume, will guarantee fail safe simultaneously; This just makes the fuse-link design that stronger arc extinguishing ability will be arranged, to satisfy the demand.
Therefore need a kind of fuse-link the fusing stage timely and effectively arc extinguishing, improve the fuse-link of the safe breaking capacity of fuse.
The utility model content
In view of this, the utility model technical problem to be solved provide a kind of fuse-link the fusing stage timely and effectively arc extinguishing, improve the fuse-link of the safe breaking capacity of fuse.
The utility model is realized through following technical scheme:
The utility model provides a kind ofly has an overcurrent protection sealing fuse-link; Comprise termination electrode, shell, be located at the fusable links of shell inner chamber, in said fuse-link inner wall of tube shell surface or fusable links surface or termination electrode inner face, be coated with the applicator of arc-extinguishing medium respectively on any face.
Further, in said termination electrode inner face, fuse-link inner wall of tube shell surface and fusable links surface, be coated with the applicator of arc-extinguishing medium on any two faces simultaneously;
Further, on said fuse-link inner wall of tube shell surface, fusable links is surperficial and the termination electrode inner face is coated with the applicator of arc-extinguishing medium;
Further, said fuse-link shell inner chamber is provided with the quartz sand filler;
Further, said applicator is silica gel applicator or melmac applicator.
The beneficial effect of the utility model is: the utility model is employed in the coating of fuse inner surface appropriate location, and some decompose the applicator that produces arc-extinguishing medium when uniform temperature; These applicator or before electric arc occurs or the incipient stage of electric arc appearance; The pipe in since the Joule heat operative temperature rise to one the timing; Just producing a large amount of gases is arc-extinguishing medium, will produce nitrogen, silica type material like the melamine class material and will produce gases such as carbon dioxide, low molecular carbon hydrogen and small quantity of hydrogen, has improved the pressure in the fuse-link pipe greatly; The Brownian movement speed and the collision frequency of interior gas molecule of pipe and plasma have further been aggravated; Thereby the decay of fault current has promptly been accelerated in the directed movement of the plasma that weakens, last extinguish arcs.Improve fusing stage fuse-link air pressure inside, be beneficial to electric arc and extinguish as early as possible, improve the breaking capacity of fuse-link.
Other advantages, target and the characteristic of the utility model will be set forth in specification subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following specification and claims.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
Fig. 1 seals fuse-link structure chart 1 for the overcurrent protection that has that the utility model embodiment provides;
Fig. 2 seals fuse-link structure chart 2 for the overcurrent protection that has that the utility model embodiment provides;
The sealing fuse-link structure chart that filler is arranged that Fig. 3 provides for the utility model embodiment.
Among the figure, 1 is that fuse-link, 2 is that shell, 3 is that fusable links, 4 is that termination electrode, 5 is filler.
Embodiment
Below will be with reference to accompanying drawing, the preferred embodiment of the utility model is carried out detailed description.Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection range of the utility model.
Fig. 1 seals fuse-link structure chart 1 for the overcurrent protection that has that the utility model embodiment provides, and Fig. 2 seals fuse-link structure chart 2 for the overcurrent protection that has that the utility model embodiment provides; As shown in the figure: the utility model provides a kind ofly has an overcurrent protection sealing fuse-link 1; Comprise termination electrode 4, shell 2, be located at the fusable links 3 of shell 2 inner chambers, in said fuse-link shell 2 inner wall surface, fusable links 3 surfaces or termination electrode 4 inner surfaces, be coated with the applicator of arc-extinguishing medium respectively on any surface.Perhaps in said termination electrode inner surface, fuse-link inner wall of tube shell surface or fusable links surface, be coated with the applicator of arc-extinguishing medium respectively on any two surfaces.Perhaps simultaneously said fuse-link inner wall of tube shell surface, fusable links is surperficial and the termination electrode inner surface in be coated with the applicator of arc-extinguishing medium on three surfaces.
Sealing fuse-link 1 structure chart that filler 5 is arranged that Fig. 3 provides for the utility model embodiment; As shown in the figure: the situation when the fuse inner chamber has filler, also can be respectively said fuse-link inner wall of tube shell surface, fusable links is surperficial or the termination electrode inner surface in be coated with the applicator of arc-extinguishing medium on any surface.Perhaps in said termination electrode inner surface, fuse-link inner wall of tube shell surface or fusable links surface, be coated with the applicator of arc-extinguishing medium respectively on any two surfaces.Perhaps simultaneously said fuse-link inner wall of tube shell surface, fusable links is surperficial and the termination electrode inner surface in be coated with the applicator of arc-extinguishing medium on three surfaces.
This applicator or as fuse-link inner wall of tube shell surface, fusable links is surperficial or the termination electrode inner surface in cover and add coat, the material of this layer is used for generation arc-extinguishing medium when temperature raises, the applicator of selecting for use colloidal materials to process usually.
Among the utility model embodiment with the aerogenesis colloid, like some silica type materials or melmac applicator; Be coated in the outer cap of cartridge fuse; Riveting has formed fuse-link two end electrodes inside, has been that the body both ends or one end have gas exhausted material on the body that fusable links is housed then.
For common packless fuse-link (cartridge fuse); When short circuit current or big overload current generation; Fusable links fusing in the fuse-link, partial gasification produce electric arc, and this electric arc is the plasma that under the fuse-link circuit voltage supports, forms; Can only lean on the rising of inner air tube temperature and Brownian movement speed and the collision frequency that metal bath gasifies and improves the interior pressure of fuse-link pipe, aggravates interior gas molecule of pipe and plasma this moment; Thereby the decay of fault current has promptly been accelerated in the directed movement of the plasma that weakens, last extinguish arcs.The material that when applying some in uniform temperature, decomposes aerogenesis in the inner appropriate location of fuse-link; When being coated in termination electrode inside and fuse-link housing binding site; These materials owing to the Joule heat operative temperature rises to a timing, just produce a large amount of gases before electric arc occurs or incipient stage of occurring of electric arc in pipe; Nitrogen, silica type material will be produced like the melamine class material and gases such as carbon dioxide, low molecular carbon hydrogen and small quantity of hydrogen will be produced; Improve the pressure in the fuse-link pipe greatly, further aggravated the Brownian movement speed and the collision frequency of interior gas molecule of pipe and plasma, thus the directed movement of the plasma that weakens; Promptly accelerated the decay of fault current, last extinguish arcs.Promptly improve fusing stage fuse-link air pressure inside, be beneficial to electric arc and extinguish as early as possible, improve the breaking capacity of fuse-link.
Among the utility model embodiment with the aerogenesis colloid, like some silica type materials or melmac applicator; Be coated on the surface of cartridge fuse termination electrode in shell; Adopt this termination electrode to be assembled into cartridge fuse then, formed the cartridge fuse that there is gas exhausted material on the surface of cartridge fuse termination electrode in shell.
Among the utility model embodiment with the aerogenesis colloid, like some silica type materials or melmac applicator, be coated on fuse shell inwall, adopt this pipe to be assembled into cartridge fuse then, formed the cartridge fuse that the cartridge fuse inboard wall of tube body has gas exhausted material.
Among the utility model embodiment with the aerogenesis colloid, like some silica type materials or melmac applicator; Be coated on the cartridge fuse fusable links metal wire (or sheet); Or be coated on the support body material (like glass fiber/ceramic fibre or the like) of fusable links metal wire; Adopt this fusable links metal wire (or sheet) or support body material to be assembled into cartridge fuse then, the support body material that has formed cartridge fuse fusable links metal wire (or sheet) fusable links metal wire (or sheet) or fusable links has the cartridge fuse of gas exhausted material.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the preferred embodiment through with reference to the utility model is described the utility model; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and the scope of the utility model that does not depart from appended claims and limited.
Claims (4)
1. one kind has overcurrent protection sealing fuse-link; Comprise termination electrode, shell, be located at the fusable links of shell inner chamber, it is characterized in that: the applicator that in said fuse-link inner wall of tube shell surface or fusable links surface or termination electrode inner face, is coated with arc-extinguishing medium respectively on any face.
2. one kind has overcurrent protection sealing fuse-link, it is characterized in that: the applicator that is coated with arc-extinguishing medium on any two faces in termination electrode inner face, fuse-link inner wall of tube shell surface and fusable links surface simultaneously.
3. one kind has overcurrent protection sealing fuse-link, it is characterized in that: on fuse-link inner wall of tube shell surface, fusable links is surperficial and the termination electrode inner face is coated with the applicator of arc-extinguishing medium.
4. according to each describedly has an overcurrent protection sealing fuse-link in the claim 1,2 or 3, it is characterized in that: said applicator is silica gel applicator or melmac applicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120540121 CN202616176U (en) | 2011-12-21 | 2011-12-21 | Sealing fuse link possessing over-current protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120540121 CN202616176U (en) | 2011-12-21 | 2011-12-21 | Sealing fuse link possessing over-current protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616176U true CN202616176U (en) | 2012-12-19 |
Family
ID=47349849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120540121 Expired - Lifetime CN202616176U (en) | 2011-12-21 | 2011-12-21 | Sealing fuse link possessing over-current protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616176U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531587A (en) * | 2016-12-23 | 2017-03-22 | 东莞市贝特电子科技股份有限公司 | Overcurrent protection device and manufacturing method thereof |
| CN107689314A (en) * | 2017-08-10 | 2018-02-13 | 南京萨特科技发展有限公司 | A kind of high property superthin protection element and preparation method |
| CN109417289A (en) * | 2016-06-28 | 2019-03-01 | 溯高美公司 | Method for generating the short circuit current of triggering electic protection element |
| CN110571113A (en) * | 2019-10-27 | 2019-12-13 | 西安中熔电气股份有限公司 | Auxiliary arc extinguishing structure of excitation fuse |
-
2011
- 2011-12-21 CN CN 201120540121 patent/CN202616176U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417289A (en) * | 2016-06-28 | 2019-03-01 | 溯高美公司 | Method for generating the short circuit current of triggering electic protection element |
| CN109417289B (en) * | 2016-06-28 | 2020-04-14 | 溯高美公司 | Method for generating a short-circuit current for triggering an electrical protection element |
| CN106531587A (en) * | 2016-12-23 | 2017-03-22 | 东莞市贝特电子科技股份有限公司 | Overcurrent protection device and manufacturing method thereof |
| CN106531587B (en) * | 2016-12-23 | 2019-06-14 | 东莞市贝特电子科技股份有限公司 | A kind of overcurrent protective device and its manufacturing method |
| CN107689314A (en) * | 2017-08-10 | 2018-02-13 | 南京萨特科技发展有限公司 | A kind of high property superthin protection element and preparation method |
| CN110571113A (en) * | 2019-10-27 | 2019-12-13 | 西安中熔电气股份有限公司 | Auxiliary arc extinguishing structure of excitation fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160823 Address after: Xiangan District of Xiamen City, Fujian province 361000 Fang Shandong two Road No. 829 Patentee after: Hollyland (Xiamen) circuit protection technology Co. Ltd. Address before: Fanghu Road, Huli District of Xiamen city of Fujian Province, No. 361009 9-19 Patentee before: Xiamen Ningly Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |