CN204088237U - A kind of hollow structure fuse - Google Patents
A kind of hollow structure fuse Download PDFInfo
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- CN204088237U CN204088237U CN201420478179.7U CN201420478179U CN204088237U CN 204088237 U CN204088237 U CN 204088237U CN 201420478179 U CN201420478179 U CN 201420478179U CN 204088237 U CN204088237 U CN 204088237U
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- fuse
- hollow structure
- housing
- external electrode
- cavity
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Abstract
The utility model provides a kind of hollow structure fuse, the external electrode comprising the housing with cavity be made up of upper shell and lower casing, the fuse being positioned at described housing and be positioned at outside described housing, the stage casing of wherein said fuse hangs in the cavity of described housing, the two ends of described fuse across the little groove of described housing, described fuse and described external electrode one-body molded; Or hollow structure fuse comprises the housing with cavity be made up of upper shell and lower casing, the fuse hung in described cavity, to be connected with the two ends of described fuse and across the connector of the little groove of described housing and the external electrode that is positioned at outside described housing respectively, wherein said connector and described external electrode one-body molded.This structure fuse structure is simple, and manufacture method is simple and easy to grasp.
Description
Technical field
The utility model belongs to circuit protecting element field, particularly relates to a kind of hollow structure fuse.
Background technology
The large type of surface mounting fuse protector main two: hollow structure fuse and solid state device type fuse.Hollow structure 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 purpose of this utility model is to provide a kind of hollow structure fuse, and this structure fuse structure is simple, and manufacture method is simple.
For achieving the above object, the utility model first aspect provides a kind of hollow structure fuse, and hollow structure fuse comprises:
The housing with cavity be made up of upper shell and lower casing, the fuse being positioned at described housing and the external electrode be positioned at outside described housing, the stage casing of wherein said fuse hangs in the cavity of described housing, the two ends of described fuse across the little groove of described housing, described fuse and described external electrode one-body molded.
Preferably, described upper shell and described lower casing all adopt injection molding manner straight forming.
Preferably, described upper shell and/or described lower casing offer big groove, and described big groove forms described cavity.
Preferably, described fuse and described external electrode one-body molded by metal wire frame.
Preferably, described fuse is that described metal wire frame parcel plating is formed, and described external electrode is electroplated by described metal wire frame metal surface and formed.
The utility model additionally provides a kind of hollow structure fuse, comprising:
The housing with cavity be made up of upper shell and lower casing, the fuse hung in described cavity, to be connected with the two ends of described fuse and across the connector of the little groove of described housing and the external electrode that is positioned at outside described housing respectively, wherein said connector and described external electrode one-body molded.
Preferably, described upper shell and described lower casing all adopt injection molding manner straight forming.
Preferably, described upper shell and/or described lower casing offer big groove, and described big groove forms described cavity.
Preferably, described connector and described external electrode one-body molded by metal wire frame.
Preferably, it is characterized in that, the shape of described fuse is raw silk rings or helicity.
As can be seen here, the hollow structure fuse that the utility model embodiment provides, upper lower casing injection mo(u)lding, and external electrode is directly bent to form by metal wire frame terminal, compares existing hollow structure fuse, structure is simple, and manufacture method is simple and easy to grasp.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment 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 embodiments more of the present utility model, 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 utility model embodiment one;
The structure chart in the multiple connected portion to be cut of Fig. 2 the utility model embodiment one;
Fig. 3 is the structure chart of the upper and lower cover plates that the utility model embodiment one injection moulding is formed;
Fig. 4 is the plane graph in the utility model embodiment one after portion to be cut and up/down cover plate combination;
Fig. 5 is the part-structure figure after the bonding of the utility model embodiment one upper and lower cover plates;
Fig. 6 is the structure chart of the single fuse that the utility model embodiment one is formed;
The flow chart of Fig. 7 the utility model embodiment one;
The flow chart of Fig. 8 the utility model embodiment two;
Fig. 9 is the structure chart of the utility model embodiment more than two metal section be connected;
Plane graph after the portion to be cut of Figure 10 the utility model embodiment two and up/down cover plate combination;
Figure 11 is the part-structure figure after the bonding of the utility model embodiment two upper and lower cover plates;
Figure 12 is the structure chart of the single fuse of the utility model embodiment two.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment one provides a kind of hollow structure fuse, see Fig. 6, the external electrode 33 that this fuse comprises the housing 31 with cavity be made up of upper shell and lower casing, the fuse 32 being positioned at housing 31 and is positioned at outside housing 31, its stage casing stating fuse 32 hangs in the cavity of housing, the little groove of the two ends straddles shell 31 of fuse 32, fuse 32 is one-body molded with external electrode 33.
The fuse of said structure can be formed by multiple method manufacture, and be below wherein a kind of concrete mode, see Fig. 7, 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.Wherein 13 cut for follow-up.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, respectively whole plate injection moulding form cover plate and lower cover.Wherein, upper cover plate and/or lower cover have big groove, and the opposing sidewalls of the big groove of upper cover plate and/or the big groove of lower cover has little groove, and adjacent big groove has penetrating cut section at least one direction.
Fig. 3 shows a upper cover plate (or lower cover) 21.Wherein upper cover plate 21 offers multiple big groove 212, and offer penetrating cut section 211 between adjacent big groove 212, two opposite wall of big groove 212 offer little groove 213.Lower cover has the structure identical with upper cover plate.The big groove 212 of upper and lower cover plates is for forming cavity when upper cover plate and lower cover are harmonious.In this step, penetrating cut section 211 for follow-up cutting to form single fuse.It should be noted that, in the embodiment shown in Fig. 3, adjacent big groove 212 is only provided with penetrating cut section in a lateral direction.For finally forming single fuse, can after finishing assembly, 214 parts in cutting drawing.
It should be noted that, in the present invention, big groove and little groove can only be opened on upper cover plate or lower cover.
In step s 12, the Material selec-tion of upper and lower cover plates is 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 designing corresponding mould.
S13, portion to be cut to be positioned in the housing of upper cover plate and lower cover composition, and whole plate bonding upper cover plate and lower cover.The mid portion in portion to be cut across little groove and its stage casing be suspended in the cavity of big groove composition of the big groove of upper cover plate and/or lower cover.Portion to be cut and big groove one_to_one corresponding.
Be positioned in housing by portion to be cut one_to_one corresponding, concrete, by the mid portion in portion to be cut and the follow-up portions spans for the formation of fuse on little groove, and its stage casing is suspended in the cavity that big groove formed.Now, the end in portion to be cut exposes to outside big groove, corresponding with the position of penetrating cut section in other words.Bonding upper and lower cover plates.Bonding to select glue to carry out adhering and solidifying, and glue can adopt epoxy glue etc.
Fig. 4 shows the plane graph combined in portion to be cut and upper cover plate 21 (or lower cover).Wherein the mid portion in portion to be cut is across little groove and stage casing 231 is suspended in big groove 212, and two ends 232 in portion to be cut expose to big groove 212, corresponding to penetrating cut section 211 place of upper cover plate 21.The part 233 for subsequent singulation that two portions to be cut are connected corresponds to penetrating cut section 211 place.
The structure chart that Fig. 5 is wherein a part of after showing and upper and lower cover plates 21 being bonded.Wherein the mid portion in portion 23 to be cut is across little groove and stage casing is suspended in cavity 24, and two ends in portion 23 to be cut expose to housing.
S14, along penetrating cut section segmentation upper cover plate and lower cover, and the portion to be cut be positioned at outside housing is bent to form external electrode.
Multiple independently housing can be formed after the position segmentation upper and lower cover plates of 214 in penetrating cut section and Fig. 3.Now, multiple connected portion to be cut is also simultaneously divided comes.Namely the end in portion to be cut exposes to outside housing.The part exposed to outside housing is terminal, and namely terminal bending is formed external electrode.The product of final formation as shown in Figure 6, the external electrode 33 comprising housing 31, fuse 32 and be directly bent to form by terminal.
In above-mentioned steps S14, can first along penetrating cut section cutting upper cover plate and lower cover, then the whole plate in portion to be cut be positioned at outside housing is bent to form external electrode, the direction vertical with penetrating cut section, last edge is as 214 in Fig. 3, gong limit or cutting upper cover plate and lower cover, to form single fuse.This mode can form external electrode by whole plate bending terminal, further increases efficiency.
The upper lower casing of the above embodiment of the present invention all adopts injection molding manner shaping, without the need to machine work, 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.And adopt the mode of whole plate injection moulding can once manufacture multiple fuse, improve production efficiency compared to existing technology.
The embodiment of the present invention two provides another kind of hollow structure fuse, see Figure 12, comprise: the housing 45 with cavity be made up of upper shell and lower casing, the fuse 43 hung in cavity, to be connected with the two ends of fuse 43 and the connector 41 of the little groove of straddles shell 45 and external electrode 42 ˊ that is positioned at outside housing 45 respectively, wherein connector 41 is one-body molded with external electrode 42 ˊ.
The hollow structure fuse of said structure can be made in many ways, and be below a kind of concrete mode, see Fig. 8, 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 9, each metal section 4 comprises two ends 42 and the connector 41 with gap between both ends, and electric conductor 43 is connected between connector 41.Certainly, Fig. 9 illustrate only the present invention's a kind of concrete structure wherein, and those skilled in the art form the structure chart in portion to be cut after it will also be appreciated that and full wafer intermetallic composite coating being formed the metal section of other shapes.Electric conductor 43 i.e. the follow-up part for the formation of fuse.
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, respectively whole plate injection moulding form upper cover plate and lower cover.Upper cover plate and/or lower cover have big groove, and the opposing sidewalls of the big groove of upper cover plate and/or the big groove of lower cover has little groove, and the place that big groove is connected all has penetrating cut section at least in one direction.
The structure of the upper and lower cover plates that this step is formed is identical with the structure formed in embodiment one, specifically can see Fig. 3.
In step S22, cover plate materials 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.
S23, portion to be cut to be positioned in the housing of upper and lower cover plates composition, and whole plate bonding upper cover plate and lower cover.The mid portion in portion to be cut across little groove and its stage casing be suspended in the cavity of big groove composition of the big groove of upper shell and/or lower casing.
Figure 10 shows the plane graph combined in portion to be cut and upper cover plate (or lower cover).Wherein the connector 41 in portion to be cut is across little groove and electric conductor 43 is suspended in big groove 451, and two ends of metal section expose to big groove 451, corresponding to penetrating cut section 452 place of upper cover plate.
The structure chart that Figure 11 is wherein a part of after showing and upper and lower cover plates being bonded.Wherein electric conductor 43 is suspended in cavity 44, and two ends in portion to be cut expose to housing 45.
Portion to be cut correspondence is positioned in big groove, bonding upper and lower cover plates.Bonding can select glue to carry out adhering and solidifying, and glue can adopt epoxy glue etc.
S24, along penetrating cut section segmentation upper cover plate and lower cover, and the portion to be cut be positioned at outside housing is bent to form external electrode.
Multiple connected shell divide up and down can be held after penetrating cut section segmentation upper and lower cover plates, form multiple independently housing.Now, multiple connected portion to be cut is also simultaneously divided comes.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, and namely terminal bending is formed external electrode.As shown in figure 12, from the different of Figure 11, it is that terminal has been bent to form external electrode 42 ˊ to the product of final formation.
In above-mentioned steps S24, can first penetrating cut section cutting upper cover plate in the same direction and lower cover, then the whole plate in portion to be cut be positioned at outside housing is bent to form external electrode, finally penetrating cut section gong limit vertically or cutting upper cover plate and lower cover, to form single fuse.This mode can form external electrode by whole plate bending terminal, further increases efficiency.
The upper lower casing of the above embodiment of the present invention two all adopts injection molding manner shaping, without the need to machine work, 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.And adopt the mode of whole plate injection moulding can once manufacture multiple fuse, improve production efficiency compared to existing technology.
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 (10)
1. a hollow structure fuse, is characterized in that, described hollow structure fuse comprises:
The housing with cavity be made up of upper shell and lower casing, the fuse hung in described cavity, to be connected with the two ends of described fuse and across the connector of the little groove of described housing and the external electrode that is positioned at outside described housing respectively, wherein said connector and described external electrode one-body molded.
2. hollow structure fuse as claimed in claim 1, it is characterized in that, described upper shell and described lower casing all adopt injection molding manner straight forming.
3. hollow structure fuse as claimed in claim 1, it is characterized in that, described upper shell and/or described lower casing offer big groove, and described big groove forms described cavity.
4. hollow structure fuse as claimed in claim 1, is characterized in that, described connector and described external electrode one-body molded by metal wire frame.
5. the hollow structure fuse as described in any one in Claims 1-4, is characterized in that, the shape of described fuse is raw silk rings shape or spirality.
6. a hollow structure fuse, is characterized in that, described hollow structure fuse comprises:
The housing with cavity be made up of upper shell and lower casing, the fuse being positioned at described housing and the external electrode be positioned at outside described housing, the stage casing of wherein said fuse hangs in the cavity of described housing, the two ends of described fuse across the little groove of described housing, described fuse and described external electrode one-body molded.
7. hollow structure fuse as claimed in claim 6, it is characterized in that, described upper shell and described lower casing all adopt injection molding manner straight forming.
8. hollow structure fuse as claimed in claim 6, it is characterized in that, described upper shell and/or described lower casing offer big groove, and described big groove forms described cavity.
9. hollow structure fuse as claimed in claim 6, is characterized in that, described fuse and described external electrode one-body molded by metal wire frame.
10. hollow structure fuse as claimed in claim 9, is characterized in that, described fuse is that described metal wire frame parcel plating is formed, and described external electrode is electroplated by described metal wire frame metal surface and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478179.7U CN204088237U (en) | 2014-08-22 | 2014-08-22 | A kind of hollow structure fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478179.7U CN204088237U (en) | 2014-08-22 | 2014-08-22 | A kind of hollow structure fuse |
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| Publication Number | Publication Date |
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| CN204088237U true CN204088237U (en) | 2015-01-07 |
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| CN201420478179.7U Active CN204088237U (en) | 2014-08-22 | 2014-08-22 | A kind of hollow structure fuse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068510A (en) * | 2016-12-30 | 2017-08-18 | 南京萨特科技发展有限公司 | A kind of compact anti-explosion protector |
| CN112768322A (en) * | 2020-12-28 | 2021-05-07 | Aem科技(苏州)股份有限公司 | Surface-mounted fuse and manufacturing method thereof |
| TWI757137B (en) * | 2021-03-31 | 2022-03-01 | 功得電子工業股份有限公司 | Airtight surface mount fuse with insert cavity |
-
2014
- 2014-08-22 CN CN201420478179.7U patent/CN204088237U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068510A (en) * | 2016-12-30 | 2017-08-18 | 南京萨特科技发展有限公司 | A kind of compact anti-explosion protector |
| CN112768322A (en) * | 2020-12-28 | 2021-05-07 | Aem科技(苏州)股份有限公司 | Surface-mounted fuse and manufacturing method thereof |
| CN112768322B (en) * | 2020-12-28 | 2023-02-03 | Aem科技(苏州)股份有限公司 | Surface-mounted fuse and manufacturing method thereof |
| TWI757137B (en) * | 2021-03-31 | 2022-03-01 | 功得電子工業股份有限公司 | Airtight surface mount fuse with insert cavity |
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