CN104227348A - Method of producing suspended fuse type fuse - Google Patents
Method of producing suspended fuse type fuse Download PDFInfo
- Publication number
- CN104227348A CN104227348A CN201410419429.4A CN201410419429A CN104227348A CN 104227348 A CN104227348 A CN 104227348A CN 201410419429 A CN201410419429 A CN 201410419429A CN 104227348 A CN104227348 A CN 104227348A
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- Prior art keywords
- cut
- fuse
- injection mold
- shell
- manufacture method
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
Abstract
The invention provides a method of producing a suspended fuse type fuse. The method comprises the following steps that the whole piece of metal is produced to a plurality of connected metal parts, each metal part comprises two ends and a connecting body which is positioned between the two ends and is provided with a certain gap, and a conductor is connected between two connecting bodies; a part to be cut is formed by each metal part and the corresponding conductor; the conductors are coated by adopting a thermal insulation material or an arc extinguishing material and are dried and solidified, each conductor is placed in an injection mold, each injection mold comprises a plurality of injection molding channels, the molten plastic enters into a cavity of each injection mold, and a shell used for containing the corresponding conductor is formed by each cavity; the parts to be cut outside the shell are cut and are bent to form external electrodes. According to the method, the shell is molded by adopting an injection molding manner without machining, so that the efficiency is improved; the external electrodes are formed by directly bending metal wireframe terminals which are integrally formed, so that the trifles for sleeve cap connection and metallization can be solved.
Description
Technical field
The invention belongs to circuit protecting element field, particularly relate to a kind of industrially preparing process of suspended fuse type fuse.
Background technology
The large type of surface mounting fuse protector main two: suspended fuse type fuse and solid state device type fuse.Suspended fuse type fuse, fuse (wire) is suspended in the shell of hollow.Two ends and the termination electrode of fuse are fixed in a different manner, have that resistance is little, consume energy the feature such as low.
The type fuse that US Patent No. 2010245025 (A1) discloses comprises a shell, two termination metal caps, and a fuse extended to outside shell and end cap, fuse forms electrical connection at termination metal cap outer surface bending, fuse is when being welded on pcb board, and fuse, termination metal cap and pcb board link into an integrated entity by the tin cream that welding uses.This kind of fuse adopts between shell and metal cap and assembles one by one, and production efficiency is lower.
Another kind, multilayer pressure and structure fuse, suspend fuse in matrix, and matrix encapsulation adopts binding agent pressing curing mode, and chamber portion adopts machining mode or Multi-stacking compaction (CN1848351) to be formed, and loaded down with trivial details, cost is higher.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of manufacture method of suspended fuse type fuse, to solve prior art complex procedures, the problem that production efficiency is low.
For achieving the above object, first aspect present invention provides a kind of manufacture method of suspended fuse type fuse, and described method comprises the steps:
A, whole piece intermetallic composite coating is made multiple connected metal section, described metal section comprises the connector that both ends and between both ends two have certain interval, is connected to by an electric conductor between two described connectors; Described metal section and described electric conductor form portion to be cut;
B, heat insulation or arc quenching material described electric conductor is adopted to carry out wrapping up and carry out dry solidification;
C, the portion to be cut in described step B is put into injection mold, described injection mold comprises multiple injection channel, the plastics of melting enter in the cavity of described injection mold under the effect of the pressure, each cavity is formed for holding described housing for electric conductor, described shell offers little groove, and described connector is across described little groove;
The portion to be cut that D, cutting are positioned at outside described shell, and the portion to be cut be positioned at outside described housing is bent to form external electrode.
In the preferred embodiment of above-mentioned first aspect, the electric discharge spot welding of high temperature scolding tin, capacitor pulse or supersonic welding in described step A, is adopted to be connected between two described connectors by described electric conductor.
In the preferred embodiment of above-mentioned first aspect, described electric conductor is raw silk rings shape or spirality.
Second aspect present invention additionally provides a kind of manufacture method of suspended fuse type fuse, comprises the steps:
A, whole piece intermetallic composite coating is made multiple connected portion to be cut;
B, heat insulation or arc quenching material is adopted to carry out wrapping up and carry out dry solidification in the stage casing of the mid portion in described portion to be cut;
C, the portion to be cut in described step B is put into injection mold, described injection mold comprises multiple cavity, the plastics of melting enter in described cavity under the effect of the pressure, each cavity forms the shell for holding the stage casing in described step B, described shell offers little groove, and the both ends of the mid portion in described portion to be cut are across described little groove;
The portion to be cut that D, cutting are positioned at outside described shell, and the portion to be cut be positioned at outside described housing is bent to form external electrode.
In the preferred embodiment of above-mentioned second aspect, described step A also comprises carries out parcel plating to the mid portion in described portion to be cut.
In the preferred embodiment of above-mentioned first aspect or second aspect, described step A also comprises carries out metal surface plating to the end in described portion to be cut.
In the preferred embodiment of above-mentioned first aspect or second aspect, described is undertaken by the mode of punching press, photoetching or etching to full wafer intermetallic composite coating.
In the preferred embodiment of above-mentioned first aspect or second aspect, in described step A, whole piece intermetallic composite coating is made multiple connected metal wire frame.
As can be seen here, the manufacture method of the suspended fuse type fuse that the embodiment of the present invention provides, shell adopts injection molding manner straight forming, and without the need to Multi-stacking compaction and bonding, without the need to machined, flow process is simple, raises the efficiency; Wrapped up by heat insulation or arc quenching material around fuse, improve fire-resistant, the anti-carbonization of fuse and antiarcing-over ability, thus ensure not occur blowing up, burning plate or arcing situation in fuse blows process.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart in the single portion to be cut of the embodiment of the present invention one;
Fig. 2 is the structure chart in the multiple connected portion to be cut of the embodiment of the present invention one;
Fig. 3 is the structure chart of the shell that the embodiment of the present invention one injection moulding is formed;
Fig. 4 is the structure chart of the single fuse that the embodiment of the present invention one is formed;
Fig. 5 is the flow chart of the embodiment of the present invention one;
Fig. 6 is the flow chart of the embodiment of the present invention two;
Fig. 7 is the structure chart in the embodiment of the present invention more than two portions to be cut be connected;
Fig. 8 is the structure chart of the shell that the embodiment of the present invention two injection moulding is formed;
Fig. 9 is the structure chart of the single fuse of the embodiment of the present invention two.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention one provides a kind of method manufacturing suspended fuse type fuse, and see Fig. 5, the method specifically comprises the steps:
S11, whole piece intermetallic composite coating is made multiple connected portion to be cut.
In the embodiment of the present invention, this portion to be cut can be the thick middle thin metal wire frames in two ends.
As shown in Figure 1, the structure chart in single portion to be cut is.Wherein both ends are used for follow-up formation terminal 11, and mid portion is used for follow-up formation fuse 12.
Whole piece metal is adopted punching press, the mode of photoetching or etching processes, multiple connected portion to be cut 1 as shown in Figure 2 can be formed.Certainly, Fig. 1,2 illustrate only the present invention's a kind of concrete structure wherein, and those skilled in the art it will also be appreciated that the portion to be cut full wafer intermetallic composite coating being formed other shapes.
In step s 11, according to different electric current and application requirement, sheet metal can select different metal material as Cu, Zn/Sn alloy, Ag etc.The mid portion in portion to be cut and the follow-up part for the formation of fuse, can carry out parcel plating according to performance requirement, the two ends in portion to be cut and the follow-up part for the formation of terminal can adopt metal surface to electroplate (Au, Ni, Sn etc.), be convenient to follow-uply to weld with wiring board.
S12, heat insulation or arc quenching material is adopted to carry out wrapping up and carry out dry solidification in the stage casing of the mid portion in portion to be cut.Concrete, heat insulation or arc quenching material can select inorganic binder, hollow glass microballoon, and quartz sand or other metal oxides, as ZrO2 etc., then adopt mode such as some glue or infiltration etc., carry out dry solidification.
S13, by above-mentioned steps S12 parcel solidification after portion to be cut put into injection mold, described injection mold comprises multiple cavity, the plastics of melting enter in described cavity under the effect of the pressure, each cavity forms one for holding the shell in the stage casing after parcel solidification, described shell offers little groove, and the both ends of the mid portion in described portion to be cut are across described little groove.
In step s 13, sheathing material is selected various, and specifically selective polymer and polymer can add glass filler enhancing etc., injection mold requires to select according to product size.
Fig. 3 shows the structure chart after injection moulding formation shell.Wherein the both ends 24 of the mid portion in portion to be cut are across the little groove of shell 21 and the stage casing 22 of mid portion is wrapped in heat insulation or arc quenching material 25, and two ends 23 in portion to be cut expose to housing 21.
The portion to be cut that S14, cutting are positioned at outside shell, and the portion to be cut be positioned at outside housing is bent to form external electrode.Concrete can 27 parts as shown in Figure 3, i.e. the part that is connected of two portions to be cut.
Multiple connected portion to be cut is divided to come.Namely the end in portion to be cut exposes to outside housing.The part exposed to outside housing is terminal, terminal is close to outer shell outer wall bending and namely forms external electrode.The product of final formation as shown in Figure 4, external electrode 23 ˊ comprising housing 21, arc quenching material 25, fuse 26 and be directly bent to form by terminal.Fuse 26 is the stage casing 22 in Fig. 3.
The shell of the above embodiment of the present invention adopts injection molding manner shaping, without the need to machined, improves efficiency; Fuse adopts metal wire frame one-body molded, and external electrode forms external electrode after directly adopting integrated metal wire frame terminal to bend, and solves cap bag and to connect and metallized loaded down with trivial details.
The embodiment of the present invention 2 provides the another kind of method manufacturing suspended fuse type fuse, and see Fig. 6, the method comprises the steps:
S21, whole piece intermetallic composite coating is made multiple connected metal section.Metal section comprises the connector that both ends and between both ends two have certain interval, is connected to by an electric conductor between two connectors; Metal section and electric conductor form portion to be cut.
In the embodiment of the present invention, this metal section can be metal wire frame.
Whole piece metal is adopted punching press, the mode of photoetching or etching processes, form multiple connected metal section.Multiple connected metal section 4 as shown in Figure 7, each metal section 4 comprises two ends 42 and the connector 41 with gap between both ends.Electric conductor 43 is connected between two connectors 41.46 parts in Fig. 7 are the part of follow-up cutting edge.Certainly, Fig. 7 illustrate only the present invention's a kind of concrete structure wherein, and those skilled in the art it will also be appreciated that metal section full wafer intermetallic composite coating being formed other shapes.
In the step s 21, according to different electric current and application requirement, sheet metal can select different metal material as Cu, Zn/Sn alloy, Ag etc.The two ends in portion to be cut and the both ends of connector 41 are used for follow-up formation terminal, and it can adopt metal surface to electroplate (Au, Ni, Sn etc.), are convenient to follow-uply to weld with wiring board.
In the step s 21, according to different electric current and application requirement, electric conductor can select different materials as monometallic or composite multi-layer metal, and shape can adopt raw silk rings or helicity (wire harness etc. of the outer coiling of glass/ceramic fiber) to meet fast disconnected or slow disconnected different application requirement; Electric conductor and connector can adopt welding manner to be connected, and weld available high temperature scolding tin, and capacitor pulse electric discharge spot welding, the modes such as supersonic welding realize.
S22, heat insulation or arc quenching material described electric conductor is adopted to carry out wrapping up and carry out dry solidification.Concrete, heat insulation or arc quenching material can select inorganic binder, hollow glass microballoon, and quartz sand or other metal oxides, as ZrO2 etc., then adopt mode such as some glue or infiltration etc., carry out dry solidification.
S23, the portion to be cut in described S22 step is put into injection mold, described injection mold comprises multiple injection channel, the plastics of melting enter in the cavity of described injection mold under the effect of the pressure, each cavity is formed for holding described housing for electric conductor, described shell offers little groove, and described connector is across described little groove.
In step S23, sheathing material is selected various, and specifically selective polymer and polymer can add glass filler enhancing etc., injection mold requires to select according to product size, and groove structure realizes by relating to corresponding mould.
Fig. 8 shows the structure chart in a portion to be cut after injection casing.Wherein connector 41 is across little groove and during electric conductor 43 wrapped up by heat insulation or arc quenching material 44, the end 42 of metal section exposes to housing 45.
The portion to be cut that S24, cutting are positioned at outside described shell, and the portion to be cut be positioned at outside described housing is bent to form external electrode.Concrete, 46 parts in cutting drawing 8, now, multiple connected portion to be cut is divided to come.The end in portion to be cut and the end of metal section expose to outside housing.The part exposed to outside housing is terminal, terminal is close to outer shell outer wall bending and namely forms external electrode.As shown in Figure 9, from the different of Fig. 8, it is that terminal has been bent to form external electrode 42 ˊ to the product of final formation.
The shell of the above embodiment of the present invention two adopts injection molding manner shaping, without the need to machined, improves efficiency; Adopt metal frame portion as the supporter of interior electrode fuse, two end portions is as terminal part, and external electrode forms external electrode after directly adopting integrated metal wire frame terminal to bend, and solves cap bag and to connect and metallized loaded down with trivial details.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a manufacture method for suspended fuse type fuse, is characterized in that, described method comprises the steps:
A, whole piece intermetallic composite coating is made multiple connected metal section, described metal section comprises the connector that both ends and between both ends two have certain interval, is connected to by an electric conductor between two described connectors; Described metal section and described electric conductor form portion to be cut;
B, heat insulation or arc quenching material described electric conductor is adopted to carry out wrapping up and carry out dry solidification;
C, the portion to be cut in described step B is put into injection mold, described injection mold comprises multiple injection channel, the plastics of melting enter in the cavity of described injection mold under the effect of the pressure, each cavity is formed for holding described housing for electric conductor, described shell offers little groove, and described connector is across described little groove;
The portion to be cut that D, cutting are positioned at outside described shell, and the portion to be cut be positioned at outside described housing is bent to form external electrode.
2. manufacture method as claimed in claim 1, is characterized in that, adopts the electric discharge spot welding of high temperature scolding tin, capacitor pulse or supersonic welding to be connected between two described connectors by described electric conductor in described step A.
3. manufacture method as claimed in claim 1, it is characterized in that, described electric conductor is raw silk rings shape or spirality.
4. a manufacture method for suspended fuse type fuse, is characterized in that, described method comprises the steps:
A, whole piece intermetallic composite coating is made multiple connected portion to be cut;
B, heat insulation or arc quenching material is adopted to carry out wrapping up and carry out dry solidification in the stage casing of the mid portion in described portion to be cut;
C, the portion to be cut in described step B is put into injection mold, described injection mold comprises multiple cavity, the plastics of melting enter in described cavity under the effect of the pressure, each cavity forms the shell for holding the stage casing in described step B, described shell offers little groove, and the both ends of the mid portion in described portion to be cut are across described little groove;
The portion to be cut that D, cutting are positioned at outside described shell, and the portion to be cut be positioned at outside described housing is bent to form external electrode.
5. manufacture method as claimed in claim 4, it is characterized in that, described step A also comprises carries out parcel plating to the mid portion in described portion to be cut.
6. the manufacture method as described in claim 1 or 4, is characterized in that, described step A also comprises carries out metal surface plating to the end in described portion to be cut.
7. the manufacture method as described in claim 1 or 4, is characterized in that, described is undertaken by the mode of punching press, photoetching or etching to full wafer intermetallic composite coating.
8. the manufacture method as described in claim 1 or 4, is characterized in that, whole piece intermetallic composite coating is made multiple connected metal wire frame in described step A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419429.4A CN104227348A (en) | 2014-08-22 | 2014-08-22 | Method of producing suspended fuse type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419429.4A CN104227348A (en) | 2014-08-22 | 2014-08-22 | Method of producing suspended fuse type fuse |
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| Publication Number | Publication Date |
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| CN104227348A true CN104227348A (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419429.4A Pending CN104227348A (en) | 2014-08-22 | 2014-08-22 | Method of producing suspended fuse type fuse |
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| CN (1) | CN104227348A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977115A (en) * | 2016-06-27 | 2016-09-28 | 南京萨特科技发展有限公司 | High explosion prevention protection element and manufacturing method thereof |
| CN106486326A (en) * | 2016-09-14 | 2017-03-08 | 南京萨特科技发展有限公司 | A kind of anti-explosion protector and manufacture method |
| CN107175472A (en) * | 2017-06-20 | 2017-09-19 | 佛山市高明毅力温控器有限公司 | A kind of safety fastener preparation method |
| CN111383863A (en) * | 2020-02-27 | 2020-07-07 | 西北核技术研究院 | Anti-crack curing method for arc extinguishing sand column of quick fuse |
| CN112885653A (en) * | 2021-01-13 | 2021-06-01 | 东莞市贝特电子科技股份有限公司 | Fuse and manufacturing method thereof |
| CN115257129A (en) * | 2022-07-25 | 2022-11-01 | 安徽鑫瑞新材料有限公司 | Preparation method of layered metal atmosphere protection thermal composite material and composite material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977115A (en) * | 2016-06-27 | 2016-09-28 | 南京萨特科技发展有限公司 | High explosion prevention protection element and manufacturing method thereof |
| CN106486326A (en) * | 2016-09-14 | 2017-03-08 | 南京萨特科技发展有限公司 | A kind of anti-explosion protector and manufacture method |
| CN106486326B (en) * | 2016-09-14 | 2019-05-03 | 南京萨特科技发展有限公司 | A kind of anti-explosion protector and manufacturing method |
| CN107175472A (en) * | 2017-06-20 | 2017-09-19 | 佛山市高明毅力温控器有限公司 | A kind of safety fastener preparation method |
| CN111383863A (en) * | 2020-02-27 | 2020-07-07 | 西北核技术研究院 | Anti-crack curing method for arc extinguishing sand column of quick fuse |
| CN111383863B (en) * | 2020-02-27 | 2022-03-04 | 西北核技术研究院 | Anti-crack curing method for arc extinguishing sand column of quick fuse |
| CN112885653A (en) * | 2021-01-13 | 2021-06-01 | 东莞市贝特电子科技股份有限公司 | Fuse and manufacturing method thereof |
| CN112885653B (en) * | 2021-01-13 | 2023-01-06 | 东莞市贝特电子科技股份有限公司 | Fuse and manufacturing method thereof |
| CN115257129A (en) * | 2022-07-25 | 2022-11-01 | 安徽鑫瑞新材料有限公司 | Preparation method of layered metal atmosphere protection thermal composite material and composite material |
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Application publication date: 20141224 |