CN101206977A - High-precision sheet type fuse and manufacturing method therefor - Google Patents
High-precision sheet type fuse and manufacturing method therefor Download PDFInfo
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- CN101206977A CN101206977A CNA2007101722611A CN200710172261A CN101206977A CN 101206977 A CN101206977 A CN 101206977A CN A2007101722611 A CNA2007101722611 A CN A2007101722611A CN 200710172261 A CN200710172261 A CN 200710172261A CN 101206977 A CN101206977 A CN 101206977A
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Abstract
The invention relates to a high accuracy blade type fuse wire, which has monolith structure composed of two or more glass ceramic material layers, metallic film depositing between the glass ceramic material layers and a fusing lead wire; wherein, the metallic film is respectively positioned at the two ends inside the monolith structure and is not mutually connected, leading electrodes are lined up in parallel, and are connected through one or more thin fusing lead wire, conducting layers are covered at the two ends of the monolith structure where the metallic film is arranged, and terminal electrodes are formed outside the conducting layers through electric plating. The manufacture method adopts the steps that a layer of leading electrode is covered on the surface of the glass ceramic material layers, the leading electrodes are respectively positioned at the two ends and not mutually connected, and one or more thin metal wires are positioned between the leading electrodes as the fusing lead wire; a glass ceramic material layer is covered, and cut into single fuse wires, and then agglomeration, end sealing and electric plating are performed. The invention has the advantages that compared with products adopting printed electrodes as the fuse material, the resistance value of the invention is more concentrated, the uniformity of the current characteristics of each batch of products is better, and thereby the invention is a high accuracy wire protection element.
Description
Technical field
A kind of high-precision sheet type fuse of the present invention and manufacture method thereof relate to a kind of ceramic blade fuse that is applied to the line protection field, and the method for making this blade fuse.
Background technology
The surface mount fuse is widely used in the overcurrent protection field, such as in miniaturization of components, integrated exigent digital product and hand-hold electronic equipments, computer fittings and the computer peripheral.Directly adopt silk screen printing to make the monolithic structure blade fuse product of fusing electrode, owing to print the restriction of precision, behind the diaphragm sintering, can cause the distortion of inner fusing conductive film layer, thereby cause the consistency of resistance relatively poor, same a collection of product resistance differs bigger, perhaps the product current characteristics of same resistance differs greatly, so that is difficult to accurately judge which type of electric current service condition product is fit to.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of resistance unanimity, and the electric current service condition surface attaching type high-precision sheet type fuse that is easy to judge.
Another technical issues that need to address of the present invention are to provide a kind of manufacture method of above-mentioned high-precision sheet type fuse.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of high-precision sheet type fuse, constitute monolithic structure by two-layer or above glass ceramic material layer and the metallic film and the fused wire that are deposited between the glass ceramic material layer, wherein, described metallic film is respectively in the inner two ends of monolithic structure and does not link to each other, constitute leading electrode, leading electrode is arranged in parallel, connect by one or above thin fused wire between the leading electrode, two terminations that metallic film is set at this monolithic structure are coated with conductive layer, and conductive layer is outer to constitute termination electrode through electroplating.
Described glass ceramic material layer is a matrix, and metallic film is a leading electrode, and wire is as fused wire, and termination electrode connects leading electrode, between two leading electrodes by the fused wire conducting.
Described termination electrode has three layers, and inside is one deck termination material layer, middle one deck nickel dam that covers, and the outside is terne metal or pure stannum layer.
Described glass ceramics layer material is a kind of or its composition in aluminium nitride, titanium dioxide, aluminosilicate calcium salt, aluminium oxide, borosilicate glass, the colemanite.
Described termination material layer is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum; Described metallic film is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum; Described fused wire is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum.
Manufacture method at above-mentioned high-precision sheet type fuse, elder generation is in surface coverage one deck leading electrode of glass-ceramic layer, leading electrode is respectively in two ends and does not link to each other, and inserts one or above thin wire as fused wire between the leading electrode of two terminations; Cover one deck glass ceramic material layer more in the above, repeat above-mentioned steps till the number of plies of design, obtain the livings diaphragm of monolithic structure, then diaphragm is cut into single fuse, sinter porcelain into, last end-blocking, plating get final product finished product.
The invention has the beneficial effects as follows:
The present invention with compare as the product of fusible material with printed electrode, resistance value is more concentrated, the current characteristics consistency of every batch of product is better, is a kind of high-precision route protection element.
Description of drawings
Fig. 1 is the elevational sectional view of this product.
Fig. 2 is the top cross-sectional view of this product.
Label declaration in the accompanying drawing
1,1 '-termination electrode 2-matrix
3,3 '-leading electrode 4-fused wire
Embodiment
See also the elevational sectional view of Fig. 1 for this product, Fig. 2 is shown in the top cross-sectional view of this product, a kind of high-precision sheet type fuse, constitute monolithic structure by most layer glass ceramic material layer and the metallic film and the fused wire that are deposited between the matrix 2, described glass ceramic material layer is a matrix 2, metallic film is a leading electrode 3,3 ', and wire is as fused wire 4, wherein, described metallic film is respectively in the inner two ends of monolithic structure and does not link to each other, and constitutes leading electrode 3,3 ', gap between the leading electrode 3 and 3 ' is 1mm, be arranged parallel to each other, leading electrode 3 is connected by a thin fused wire 4 between 3 ', two terminations at this monolithic structure interior metal film are coated with conductive layer, conductive layer is outer to constitute termination electrode 1,1 ', termination electrode 1 through electroplating, 1 ' connects leading electrode 3,3 ', two leading electrodes 3, between 3 ' by fused wire 4 conductings.
Described termination electrode 1,1 ' has three layers, and inside is one deck termination material layer, middle one deck nickel dam that covers, and the outside is terne metal or pure stannum layer.
Described glass ceramics layer material is a borosilicate glass.
Described metallic film is that copper becomes, and fused wire is the filamentary silver of diameter 0.04mm.
The manufacture method of high-precision sheet type fuse, earlier successively form the matrix slurry with curtain coating or typography, form glass ceramic material layer matrix 2, print or spray the pulp layer of leading electrode material composition on matrix 2 surfaces, form one deck leading electrode 3,3 ', leading electrode 3,3 ' is respectively in two ends but does not link to each other, and again in the leading electrode 3 of two terminations, inserts a thin wire between 3 ' as fused wire 4; Cover one deck glass ceramic material layer matrix 2 then in the above, repeat above-mentioned steps up to giving birth to diaphragm curtain coating stack thickness till the 1.4mm, obtain the living diaphragm of monolithic structure, then diaphragm is cut into single fuse, cut lengths are 3.7mm * 1.85mm * 1.40mm, sinter porcelain into, at last through chamfering, starch end-blocking with silver and make termination electrode 1,1 ', electroless nickel layer, plating pure stannum layer, get final product the chip component finished product, product size is 1206, and resistance is 50m Ω, rated current 2A.
Claims (6)
1. high-precision sheet type fuse, constitute monolithic structure by two-layer or above glass ceramic material layer and the metallic film and the fused wire that are deposited between the glass ceramic material layer, it is characterized in that: described metallic film is respectively in the inner two ends of monolithic structure and does not link to each other, constitute leading electrode, leading electrode is arranged in parallel, connect by one or above thin fused wire between the leading electrode, two terminations that metallic film is set at this monolithic structure are coated with conductive layer, and conductive layer is outer to constitute termination electrode through electroplating.
2. a kind of high-precision sheet type fuse according to claim 1, it is characterized in that: described glass ceramic material layer is a matrix, and metallic film is a leading electrode, and wire is as fused wire, termination electrode connects leading electrode, between two leading electrodes by the fused wire conducting.
3. high-precision sheet type fuse according to claim 1 is characterized in that: described termination electrode has three layers, and inside is one deck termination material layer, middle one deck nickel dam that covers, and the outside is terne metal or pure stannum layer.
4. high-precision sheet type fuse according to claim 1 is characterized in that: described glass ceramics layer material is a kind of or its composition in aluminium nitride, titanium dioxide, aluminosilicate calcium salt, aluminium oxide, borosilicate glass, the colemanite.
5. high-precision sheet type fuse according to claim 1 is characterized in that: described termination material layer is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum; Described metallic film is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum; Described fused wire is a kind of or its composition in gold, silver, copper, aluminium, palladium, the platinum.
6. at the manufacture method of one of right 1 to 5 described high-precision sheet type fuse, elder generation is in surface coverage one deck leading electrode of glass-ceramic layer, leading electrode is respectively in two ends and does not link to each other, and inserts one or above thin wire as fused wire between the leading electrode of two terminations; Cover one deck glass ceramic material layer more in the above, repeat above-mentioned steps till the number of plies of design, obtain the livings diaphragm of monolithic structure, then diaphragm is cut into single fuse, sinter porcelain into, last end-blocking, plating get final product finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101722611A CN101206977A (en) | 2007-12-13 | 2007-12-13 | High-precision sheet type fuse and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101722611A CN101206977A (en) | 2007-12-13 | 2007-12-13 | High-precision sheet type fuse and manufacturing method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101206977A true CN101206977A (en) | 2008-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101722611A Pending CN101206977A (en) | 2007-12-13 | 2007-12-13 | High-precision sheet type fuse and manufacturing method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101206977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117718A (en) * | 2009-12-30 | 2011-07-06 | 邱鸿智 | Ultramicro-fuse and manufacturing method thereof |
| CN113054295A (en) * | 2019-12-26 | 2021-06-29 | 比亚迪股份有限公司 | Cover plate assembly, battery module, power battery pack and electric automobile |
-
2007
- 2007-12-13 CN CNA2007101722611A patent/CN101206977A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117718A (en) * | 2009-12-30 | 2011-07-06 | 邱鸿智 | Ultramicro-fuse and manufacturing method thereof |
| CN113054295A (en) * | 2019-12-26 | 2021-06-29 | 比亚迪股份有限公司 | Cover plate assembly, battery module, power battery pack and electric automobile |
| WO2021129101A1 (en) * | 2019-12-26 | 2021-07-01 | 比亚迪股份有限公司 | Cover plate assembly, battery, battery module, power battery pack and electric vehicle |
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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 | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 200092, Siping Road, Shanghai, No. 710, 715-Z Applicant after: Shanghai Changyuan Wayon Circuit Protection Co., Ltd. Address before: 200092, Siping Road, Shanghai, No. 710, 715-Z Applicant before: Shanghai Changyuan Wayon Circuit Protection Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHANGHAI CHANGYUAN WEIAN ELECTRONIC LINE PROTECTION CO., LTD. TO: SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080625 |