CN203192733U - Surface mounted fuse - Google Patents
Surface mounted fuse Download PDFInfo
- Publication number
- CN203192733U CN203192733U CN 201320155696 CN201320155696U CN203192733U CN 203192733 U CN203192733 U CN 203192733U CN 201320155696 CN201320155696 CN 201320155696 CN 201320155696 U CN201320155696 U CN 201320155696U CN 203192733 U CN203192733 U CN 203192733U
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- CN
- China
- Prior art keywords
- melt
- termination electrode
- protective layer
- fuse
- insulation layer
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- Expired - Lifetime
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Abstract
The utility model relates to a surface mounted fuse comprising a termination electrode, a melt and a protective layer outside the melt, wherein the termination electrode and the melt are an integral conductive body, and the central portion of the melt is painted with a high-temperature-resistant and insulating thermal-insulation layer. Since the termination electrode and the melt are an integral conductive body, the fusing of the fuse is highly consistent. Welding is not required, which avoid instability of the contact portion between the termination electrode and the melt. When the fuse fuses due to impact of high voltage and high current, the thermal insulation layer effectively prevents the heat impact on the protective layer. Since the outer protective layer is an integral body, the bonding force is great and the consistency is good. A protective sheet and a substrate may not separate from each other. The surface mounted fuse is safe and efficient and is low in cost and simple in structure. The surface mounted fuse is worthy of wide promotion.
Description
Technical field
The utility model relates to a kind of surface mounting fuse protector.
Background technology
Present fuse is mainly end cap, melt, housing, scolder composition, this kind structure is emitted failure welding phenomenons such as tin, askew cap in assembling process, can cause product the danger of raising one's hat in use to occur, scolding tin and metal bath are in welding process simultaneously, easily form low-melting alloy, thereby reduce the fusing consistency of melt, and the lead in the scolding tin can cause serious environmental to pollute.Also having a kind of fuse is that two copper sheets at substrate connect one or more metal fuses; lid layer insulation protection sheet on metal fuse then; though this kind method can be avoided the phenomenon of raising one's hat; but because its metal fuse is thinner; fuse and copper sheet junction are fragile; can reduce the fusing consistency of melt equally; and substrate and screening glass are that two parts combine; under the impact of high voltage and high electric current; energy has little time to be transmitted to outside manufacture, thereby internal temperature is sharply risen, and causes substrate and screening glass adhesion to die down; the phenomenon that substrate separates even blows with screening glass often occurs, have serious potential safety hazard.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and a kind of surface mounting fuse protector is provided.
The technical scheme that realizes the utility model purpose is: a kind of surface mounting fuse protector; formed by the protective layer that termination electrode, melt and melt are outer; described termination electrode and melt are the integral body of a conducting, and centre spraying one deck of described melt is high temperature resistant and the thermal insulation layer of insulation.
Further, described termination electrode is both direction opposite " L " type, and the opening of two " L " is relative, and the top is as a whole with the two ends conducting of melt respectively, melt and the thermal insulation layer outside of described protective layer plastic packaging between two termination electrodes.
Further, the thickness of described protective layer is 1.5mm.
Further, the thickness of described thermal insulation layer is 0.5mm.
Further, the outside one deck nickel dam of electroplating of described termination electrode, the outside one deck tin layer of electroplating of nickel dam.
The utlity model has positive effect: termination electrode and melt are the integral body of a conducting; make the fusing of fuse that higher consistency be arranged; need not welding; also avoided the unsteadiness of termination electrode and melt contact portion; and at high voltage; when high rush of current fuses; thermal insulation layer can stop effectively that high temperature is to the thermal shock of protective layer; simultaneously because the outer protection layer is as a whole; adhesion is big and consistency is better; the phenomenon that screening glass separates with substrate in the existing product can not appear; the utility model is simple in structure; with low cost; safe and efficient, be suitable for large-scale popularization and use.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
The onunit structural representation of melt and termination electrode when Fig. 1 makes for the utility model end.
The structural representation of melt centre spraying one deck thermal insulation layer when Fig. 2 makes for the utility model.
Structural representation when protective layer formed when Fig. 3 made for the utility model.
Fig. 4 is structural representation of the present utility model.
Wherein: 1, termination electrode, 2, melt, 3, thermal insulation layer, 4, protective layer.
Embodiment
The utility model is a kind of surface mounting fuse protector; formed by termination electrode 1, melt 2 and melt 2 outer protective layers 4; termination electrode 1, melt 2 are the integral body of a conducting; termination electrode 1 is both direction opposite " L " type; the opening of two " L " is relative, and the top is as a whole with the two ends conducting of melt 2 respectively.Centre spraying one deck of melt 2 is high temperature resistant and the thermal insulation layer 3 of insulation; thickness is 0.5mm; melt 2 and thermal insulation layer 3 outsides of protective layer 4 plastic packagings between two termination electrodes 1; thickness is 1.5mm; termination electrode 1 outside one deck nickel dam of electroplating; in the time of the outside one deck tin layer of electroplating of nickel dam, coating protection termination electrode 1, also be conducive to the installation welding of product.
Making step of the present utility model is: as shown in Figure 1, at first use methods such as punching press, etching, radium-shine, laser cutting, the termination electrode 1 that forms two ends in the metal or alloy base band is the onunit of same integral body with melt 2, and the onunit material can be low melting point and low resistivity materials such as metallic copper or copper alloy.As shown in Figure 2, core at melt 2 forms one deck high-temperature insulation thermal insulation layer 3, high-temperature insulation thermal insulation layer 3 materials can be attached to melt 2 outsides by the spraying coating process bag, this heat-barrier material can be selected novel nano microballon inorganic material for use, and (conductive coefficient is: 0.035W/mK), the advantage of high temperature resistant (1700 ° of C), normal temperature cure, high adhesion force and high rigidity because it has low thermal conductance.As shown in Figure 3; between the termination electrode 1 at two ends, form high-temperature insulation protective layer 4 again; this protective layer 4 can realize that this material can be selected high temperature resistant high mechanical properties thermosets such as high temperature resistant silicon glue, heat-resistant fireproof phenolic resins or BMC for use by plastic package process.As shown in Figure 4, utilize grinding tool that the termination electrode 1 at two ends is folded in the lower surface of product, the termination electrode 1 outside one deck nickel of electroplating at product plates one deck tin then outside nickel dam.
Termination electrode 1 and melt 2 are the integral body of a conducting; make the fusing of fuse that higher consistency be arranged; need not welding; also avoided the unsteadiness of termination electrode 1 and melt 2 contact portions; and when high voltage, the fusing of high rush of current; thermal insulation layer 3 can stop effectively that high temperature is to the thermal shock of protective layer 4; simultaneously because outer protection layer 4 is as a whole; adhesion is big and consistency is better; the phenomenon that screening glass separates with substrate in the existing product can not appear; the utility model is simple in structure, with low cost, safe and efficient, is suitable for large-scale popularization and uses.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. surface mounting fuse protector; formed by the protective layer (4) that termination electrode (1), melt (2) and melt (2) are outer; it is characterized in that: described termination electrode (1) and melt (2) are the integral body of a conducting, and centre spraying one deck of described melt (2) is high temperature resistant and the thermal insulation layer (3) of insulation.
2. surface mounting fuse protector according to claim 1; it is characterized in that: described termination electrode (1) is both direction opposite " L " type; the opening of two " L " is relative; and the top is as a whole with the two ends conducting of melt (2) respectively, melt (2) and thermal insulation layer (3) outside of described protective layer (4) plastic packaging between two termination electrodes (1).
3. surface mounting fuse protector according to claim 1 and 2, it is characterized in that: the thickness of described protective layer (4) is 1.5mm.
4. surface mounting fuse protector according to claim 1 and 2, it is characterized in that: the thickness of described thermal insulation layer (3) is 0.5mm.
5. surface mounting fuse protector according to claim 1 and 2 is characterized in that: the outside one deck nickel dam of electroplating of described termination electrode (1), the outside one deck tin layer of electroplating of nickel dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155696 CN203192733U (en) | 2013-03-29 | 2013-03-29 | Surface mounted fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155696 CN203192733U (en) | 2013-03-29 | 2013-03-29 | Surface mounted fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192733U true CN203192733U (en) | 2013-09-11 |
Family
ID=49109571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320155696 Expired - Lifetime CN203192733U (en) | 2013-03-29 | 2013-03-29 | Surface mounted fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644796A (en) * | 2016-07-21 | 2018-01-30 | 东莞华恒电子有限公司 | It is thinned protection element |
-
2013
- 2013-03-29 CN CN 201320155696 patent/CN203192733U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644796A (en) * | 2016-07-21 | 2018-01-30 | 东莞华恒电子有限公司 | It is thinned protection element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |