CN204209357U - A kind of suspended fuse type fuse - Google Patents
A kind of suspended fuse type fuse Download PDFInfo
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- CN204209357U CN204209357U CN201420477901.5U CN201420477901U CN204209357U CN 204209357 U CN204209357 U CN 204209357U CN 201420477901 U CN201420477901 U CN 201420477901U CN 204209357 U CN204209357 U CN 204209357U
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- fuse
- suspended
- external electrode
- housing
- described housing
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Abstract
The utility model provides a kind of suspended fuse type fuse, comprising: injection moulding formed housing, be positioned at described housing fuse, be respectively connected with the two ends of described fuse and across the little groove of described housing connector, be positioned at the external electrode outside described housing and be filled in the heat insulation of described housing or arc quenching material; Wherein, described connector and described external electrode one-body molded.Shell of the present utility model 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.
Description
Technical field
The utility model belongs to circuit protecting element field, particularly relates to a kind 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 purpose of this utility model is to provide a kind of suspended fuse type 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 suspended fuse type fuse, comprises
Injection moulding formed housing, be positioned at described housing fuse, be positioned at the external electrode outside described housing and be filled in the heat insulation of described housing or arc quenching material; Wherein, the two ends of described fuse across the groove of described housing, described fuse and described external electrode one-body molded.
Preferably, described housing adopts injection molding manner being wrapped in straight forming on the heat insulation of described fuse or arc quenching material.
Preferably, described heat insulation or arc quenching material is inorganic binder, hollow glass microballoon, quartz sand or ZrO2.
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 also provides a kind of suspended fuse type fuse on the other hand, comprising:
Injection moulding formed housing, be positioned at described housing fuse, be respectively connected with the two ends of described fuse and across the groove of described housing connector, be positioned at the external electrode outside described housing and be filled in the heat insulation of described housing or arc quenching material; Wherein, described connector and described external electrode one-body molded.
Preferably, described housing adopts injection molding manner being wrapped in straight forming on the heat insulation of described fuse or arc quenching material.
Preferably, described heat insulation or arc quenching material is inorganic binder, hollow glass microballoon, quartz sand or ZrO2.
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 shape or spirality.
As can be seen here, the fuse that the utility model embodiment provides, shell injection mo(u)lding, and external electrode is directly bent to form by metal wire frame terminal, compares existing fuse, structure is simple, and manufacture method is simple and easy to grasp.And wrapped up by heat insulation 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 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 shell that the utility model embodiment one injection moulding is formed;
Fig. 4 is the structure chart of the single fuse that the utility model embodiment one is formed;
Fig. 5 is the flow chart of the utility model embodiment one;
Fig. 6 is the flow chart of the utility model embodiment two;
Fig. 7 is the structure chart in the utility model embodiment more than two portions to be cut be connected;
Fig. 8 is the structure chart of the shell that the utility model embodiment two injection moulding is formed;
Fig. 9 is the structure chart of the single fuse of the utility model embodiment two.
Detailed description of the invention
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 suspended fuse type fuse, and see Fig. 4, this fuse comprises:
Injection moulding formed housing 21, be positioned at housing 21 fuse 26, be positioned at external electrode 23 ˊ outside housing 25 and be filled in the heat insulation of housing 21 or arc quenching material 25; Wherein, the two ends of fuse 26 are across the groove of described housing 21, and fuse 26 is one-body molded with external electrode 23 ˊ.
The manufacture method of this fuse has multiple, and this novel method is in the following manner that example is specifically described:
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 utility model embodiment, 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 utility model 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 groove, and the both ends of the mid portion in described portion to be cut are across described 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 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 namely 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 utility model above-described embodiment 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 utility model embodiment 2 provides another kind of suspended fuse type fuse, see Fig. 9, comprising:
The housing 45 that injection moulding is formed, be positioned at housing 45 fuse 43, be connected with the two ends of fuse 43 and the connector 41 of the groove of straddles shell 45, be positioned at external electrode 42 ˊ outside housing 45 and be filled in the heat insulation of housing 45 or arc quenching material 44 respectively; Wherein, connector 41 is one-body molded with external electrode 42 ˊ.
The manufacture method of this fuse has multiple, and this novel method is in the following manner that example is specifically described:
See Fig. 6, the method specifically 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 utility model embodiment, 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 utility model 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 groove, and described connector is across described 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.During wherein connector 41 span groove and electric conductor 43 are 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 utility model above-described embodiment 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 preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a suspended fuse type fuse, is characterized in that, described suspended fuse type fuse comprises:
Injection moulding formed housing, be positioned at described housing fuse, be respectively connected with the two ends of described fuse and across the groove of described housing connector, be positioned at the external electrode outside described housing and be filled in the heat insulation of described housing or arc quenching material; Wherein, described connector and described external electrode one-body molded.
2. suspended fuse type fuse as claimed in claim 1, is characterized in that, described housing adopts injection molding manner being wrapped in straight forming on the heat insulation of described fuse or arc quenching material.
3. suspended fuse type fuse as claimed in claim 1, is characterized in that, described heat insulation or arc quenching material is inorganic binder, hollow glass microballoon, quartz sand or ZrO2.
4. suspended fuse type 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 suspended fuse type 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 suspended fuse type fuse, is characterized in that, described suspended fuse type fuse comprises:
Injection moulding formed housing, be positioned at described housing fuse, be positioned at the external electrode outside described housing and be filled in the heat insulation of described housing or arc quenching material; Wherein, the two ends of described fuse across the groove of described housing, described fuse and described external electrode one-body molded.
7. suspended fuse type fuse as claimed in claim 6, is characterized in that, described housing adopts injection molding manner being wrapped in straight forming on the heat insulation of described fuse or arc quenching material.
8. suspended fuse type fuse as claimed in claim 6, is characterized in that, described heat insulation or arc quenching material is inorganic binder, hollow glass microballoon, quartz sand or ZrO2.
9. suspended fuse type fuse as claimed in claim 6, is characterized in that, described fuse and described external electrode one-body molded by metal wire frame.
10. suspended fuse type 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 |
|---|---|---|---|
| CN201420477901.5U CN204209357U (en) | 2014-08-22 | 2014-08-22 | A kind of suspended fuse type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477901.5U CN204209357U (en) | 2014-08-22 | 2014-08-22 | A kind of suspended fuse type fuse |
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| Publication Number | Publication Date |
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| CN204209357U true CN204209357U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420477901.5U Active CN204209357U (en) | 2014-08-22 | 2014-08-22 | A kind of suspended fuse type fuse |
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| CN (1) | CN204209357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452558A (en) * | 2017-08-30 | 2017-12-08 | Aem科技(苏州)股份有限公司 | A kind of surface mounting fuse protector and its manufacture method |
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2014
- 2014-08-22 CN CN201420477901.5U patent/CN204209357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452558A (en) * | 2017-08-30 | 2017-12-08 | Aem科技(苏州)股份有限公司 | A kind of surface mounting fuse protector and its manufacture method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |