CN204230191U - A kind of surface mounting fuse protector - Google Patents
A kind of surface mounting fuse protector Download PDFInfo
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- CN204230191U CN204230191U CN201420478558.6U CN201420478558U CN204230191U CN 204230191 U CN204230191 U CN 204230191U CN 201420478558 U CN201420478558 U CN 201420478558U CN 204230191 U CN204230191 U CN 204230191U
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- electrode
- lower cover
- fuse
- surface mounting
- cover plate
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Abstract
Basis is novel discloses a kind of surface mounting fuse protector, comprises insulation shell and fuse.Insulation shell has the upper and lower cover plate be oppositely arranged, and the side that upper and lower cover plate is being oppositely arranged is respectively equipped with groove, and two grooves are jointly in conjunction with formation cavity; Lower cover is provided with interior electrode at the two ends of the side be oppositely arranged, and opposite side two ends are provided with external electrode, is provided with coated electrode with the end face in one end between electrode and external electrode; Electrical connection is formed with between the inside and outside electrode of one end and coated electrode; Lower cover is arranged in groove, and the medial surface of bottom, two ends of upper cover plate is combined with the part of the coated electrode of corresponding end and another part and external electrode expose to insulation shell; In the cavities, two ends lay respectively at the two ends, side be oppositely arranged of lower cover and are connected with electrode in corresponding end respectively in fuse suspension.
Description
Technical field
Basis is novel relates to a kind of surface mounting fuse protector, particularly relates to a kind of suspended-fuse-wire-type surface-mount fuse.
Background technology
Current, printed circuit board (PCB) is more next how be applied in various electrically and in electronic equipment.The circuit that these printed circuit board (PCB)s are formed generally all needs overcurrent protection.One of mode of this overcurrent protection is provided to be use fixing small-sized surface mounting fuse protector on a printed circuit.A wherein type of above-mentioned fuse is suspended fuse type, and fuse (wire) is suspended in the shell of hollow by it.The patent No. be 2008100923533 patent disclose a kind of structure of suspended-fuse-wire-type surface-mount fuse.This fuse comprises the shell be made up of upper and lower cover plates, and is folded in the fuse between two cover plates, and fuse stage casing is suspended in the cavity of two cover plate compositions.But the cavity of this fuse is not accomplished very large, for easy to operate, can only select the fuse of raw silk rings shape, thus limit the selection of fuse type, reduce the breaking capacity of fuse and resistance to pulse ability.
Summary of the invention
The purpose of this utility model is to provide a kind of surface mounting fuse protector, the larger fuse of cavity is made to utilize the material of formed objects, increase the selection of fuse type, improve the breaking capacity of fuse and resistance to pulse ability, when avoiding the fuse failure starting the arc, electric arc is caused the phenomenon beyond shell simultaneously.
Based on this, the utility model embodiment provides a kind of surface mounting fuse protector, comprising:
Insulation shell, described insulation shell has the upper cover plate 100 and lower cover 200 that are oppositely arranged, described upper cover plate 100 and described lower cover 200 are respectively equipped with the first groove 310 and the second groove 320 in the side be oppositely arranged, described first groove 310 and the second groove 320 jointly combine and form cavity 300; The two ends of the side that described lower cover 200 is oppositely arranged with described upper cover plate 100 are provided with interior electrode 210, the two ends of opposite side are provided with external electrode 220, and described lower cover 200 is provided with coated electrode 230 with the end face between the described interior electrode 210 of one end and described external electrode 220; Described lower cover 200 forms electrical connection with between the described interior electrode 210 of one end, described external electrode 220 and described coated electrode 230; Described lower cover 200 is arranged in described first groove 310, and the medial surface of the bottom, two ends of described upper cover plate 100 combines with a part for the described coated electrode 230 of corresponding end and another part of described coated electrode 230 and described external electrode 220 expose to described insulation shell;
Fuse 400, described fuse 400 is suspended in described cavity 300, and the two ends of described fuse 400 lay respectively at the two ends of the side that described lower cover 200 is oppositely arranged with described upper cover plate 100 and are connected with the described interior electrode 210 of corresponding end respectively.
Preferably, the bottom, two ends of described upper cover plate 100 offers the 3rd groove 110.
Preferably, the internal face of the first groove 310 of described upper cover plate 100 passes through binding agent adhesive bond with the corresponding end face of corresponding described coated electrode 230 and described lower cover 200.
Preferably, described coated electrode 230 is formed by end plane metal.
Preferably, the metal that described coated electrode 230 utilizes fusing point higher than scolding tin is formed by chemical plating or plating.
Preferably, chemical plating or be electroplate with tin layers on the surface of described external electrode 220, or; Chemical plating or be electroplate with tin layers and nickel dam on the surface of described external electrode 220.
Preferably, described upper cover plate 100 and described lower cover 200 are made up of macromolecular material.
Preferably, described macromolecular material comprises substrate for printed circuit board, thermoplastics and thermoset plastics.
Preferably, described fuse 400 is connected with described interior electrode 210 through welding.
Preferably, described fuse 400 is spirality or linear.
Preferably, described interior electrode 210 and described external electrode 220 are made up of Copper Foil.
Beneficial effect:
According to above-mentioned surface mounting fuse protector of the present utility model, because lower cover is arranged in the groove of upper cover plate, the groove of upper cover plate is greater than the groove of lower cover, compared to existing technology, the cavity of two groove compositions increases, thus add operating space, polytype fuse can be selected to make fuse as spiral fuse, improve disjunction and resistance to pulse ability.In addition, two grooves vary in size, and this asymmetric setting can stop the electric arc that more fuse failure causes, and fuse two ends are positioned at housing, avoids electric arc and leaks.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only 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.
Figure l is the stereogram of surface mounting fuse protector of the present utility model;
Fig. 2 is the cutaway view in the A-A direction of Fig. 1 fuse;
Fig. 3 is the cutaway view in the B-B direction of Fig. 1 fuse;
Fig. 4 is in the process manufacturing surface mounting fuse protector of the present utility model, the stereogram in lower cover after electrode surface welding fuse.
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.
Below, with reference to Fig. 1-3, the concrete structure of surface mounting fuse protector of the present utility model is described.
Fig. 1 shows the stereogram of the utility model surface mounting fuse protector, and Fig. 2 is the cutaway view of the stereogram in Fig. 1 along A-A direction, and Fig. 3 is the cutaway view of the stereogram in Fig. 1 along B-B direction.
This fuse comprises one and is oppositely arranged by upper cover plate 100 and lower cover 200 insulation crust and a fuse 400 that form.The side that upper and lower cover plates is oppositely arranged is called inner side, and the side relative with inner side is called outside separately.The inner side of upper and lower cover plate offers the first groove 310,320 respectively, and two grooves combine and form cavity 300.Wherein the first groove 310 is greater than the second groove 320, and lower cover 200 is arranged in the first groove 310 of upper cover plate 100, and upper cover plate 100 flushes with the lower end of lower cover 200.The two ends, inner side of lower cover 200 are provided with interior electrode 210, and two ends, outside are provided with external electrode 220.Be provided with coated electrode 230 with the end face between electrode in one end 210 and external electrode 220, form electrical connection with electrode in one end 210, external electrode 220 and coated electrode 230.Fuse 400 is suspended in cavity 300, and its two ends lay respectively at the two ends, inner side of lower cover 200, is connected with interior electrode 210, and interior electrode 210 is close in the side of concrete fuse 400.The internal face of the first groove 310 of upper cover plate 100 is combined closely with the corresponding end face (front/rear end in Fig. 1) of the coated electrode 230 of the corresponding of lower cover 200 and lower cover 200.Concrete by binding agent adhesive bond.External electrode 220 exposes to insulation shell.
Climb tin for convenience of during surface mount welding, offer the 3rd groove 110 in the lower end of upper cover plate 100 in the present invention, make part coated electrode 230 expose to insulation shell.
In the utility model, the two ends of fuse 400 are closed in insulation shell, and when fuse 400 is fused, electric arc can not leak from two ends.And lower cover is arranged in the groove of upper cover plate, the groove of upper and lower cover plate varies in size, and compared with prior art, use onesize cover plate, upper cover plate can make larger groove, thus can form larger cavity.Further make the fuse of choosing multiple type, as spirality fuse.And the asymmetric setting of two grooves, also blocking leaking of electric arc to a greater extent.
In above-described embodiment, upper cover plate 100 and lower cover 200 are made up of macromolecular material.Macromolecular material can comprise substrate for printed circuit board, thermoplastics and thermoset plastics.Interior electrode 210 and external electrode 220 are made up of Copper Foil, and on the surface of external electrode 220, chemical plating or plating electricity have tin layers, or tin layers and nickel dam.Coated electrode 230 is formed by end plane metal, and the metal that coated electrode 230 utilizes fusing point higher than scolding tin is formed by chemical plating or plating.
Fuse 400 is connected with interior electrode 210 through welding, and 410 in Fig. 3 is pad.This fuse 400 is specially spirality.
The surface mounting fuse protector of said structure can be prepared from by multiple method, is below a kind of concrete manufacture method:
S11, prepare to be formed two pieces of substrates 100,200 and the fuse 400 of upper and lower cover plate;
S12, etch interior electrode 210 and external electrode 220 by the mode whole plate on lower cover 200 etched or develop;
S13, machine work is carried out to the whole plate of lower cover 200, cut end tank, form through hole 500;
S14, carbon activation is carried out to end tank 500, and do end plane metal (can be specifically copper or many metal levels as cuprum-nickel-stannum layer).In same one end, form coated electrode 230 between electrode 210 and external electrode 220, between interior electrode 210, external electrode 220 and coated electrode 230, form electrical connection;
S15, to electrode facing cut groove in lower cover 200, form the second groove 320;
S16, in the external electrode surface chemistry plating of lower cover 200 or electroless nickel layer and tin layers;
S17, in lower cover 200 electrode surface welding fuse 400, this fuse 400 can be single line or a wire harness.
S18, a side milling groove to upper cover plate 100, form the first groove 310;
S19, assembling upper cover plate 100 and lower cover 200, be pasted onto the lower end inside face of upper cover plate 100 on the coated electrode face of lower cover 200.
Can be whole for upper cover plate 100 plate and the whole plate of lower cover 200 are combined in step S19, also can be single upper cover and whole plate lower cover 200 are combined, and also can be single upper cover and single lower cover after through hole 500 cuts to be combined.
First groove 310 of upper cover plate 100 also without the mode of milling groove, and can be formed by injection moulding.Concrete injection moulding can form whole plate upper cover plate 100, also injection moulding can form single upper cover.
Wherein fig. 4 illustrate in above-mentioned manufacturing process, the stereogram in the whole plate of lower cover 200 after electrode surface welding fuse 400.
The above is only preferred implementation 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 range of the present utility model.
Claims (10)
1. a surface mounting fuse protector, is characterized in that, described surface mounting fuse protector comprises:
Insulation shell, described insulation shell has the upper cover plate (100) and lower cover (200) that are oppositely arranged, described upper cover plate (100) and described lower cover (200) are respectively equipped with the first groove (310) and the second groove (320) in the side be oppositely arranged, described first groove (310) and the second groove (320) jointly combine and form cavity (300); The two ends of the side that described lower cover (200) and described upper cover plate (100) are oppositely arranged are provided with interior electrode (210), the two ends of opposite side are provided with external electrode (220), and described lower cover (200) is provided with coated electrode (230) with the end face between the described interior electrode (210) of one end and described external electrode (220); Described lower cover (200) forms electrical connection with between the described interior electrode (210) of one end, described external electrode (220) and described coated electrode (230); Described lower cover (200) is arranged in described groove (310), and the medial surface of the bottom, two ends of described upper cover plate (100) combines with a part for the described coated electrode (230) of corresponding end and another part of described coated electrode (230) and described external electrode (220) expose to described insulation shell;
Fuse (400), described fuse (400) is suspended in described cavity (300), and the two ends of described fuse (400) lay respectively at the two ends of the side that described lower cover (200) is oppositely arranged with described upper cover plate (100) and are connected with the described interior electrode (210) of corresponding end respectively.
2. surface mounting fuse protector as claimed in claim 1, it is characterized in that, the bottom, two ends of described upper cover plate (100) offers the 3rd groove (110).
3. surface mounting fuse protector as claimed in claim 1, it is characterized in that, the internal face of first groove (310) of described upper cover plate (100) passes through binding agent adhesive bond with the corresponding end face of corresponding described coated electrode (230) and described lower cover (200).
4. surface mounting fuse protector as claimed in claim 1, it is characterized in that, described coated electrode (230) is formed by making end plane metalization.
5. surface mounting fuse protector as claimed in claim 1, is characterized in that, the metal that described coated electrode (230) utilizes fusing point higher than scolding tin is formed by chemical plating or plating.
6. surface mounting fuse protector as claimed in claim 1, is characterized in that, the surface chemical plating of described external electrode (220) or be electroplate with tin layers; Or the surface chemical plating of described external electrode (220) or electroless nickel layer and tin layers.
7. surface mounting fuse protector as claimed in claim 1, it is characterized in that, described upper cover plate (100) and described lower cover (200) are made up of macromolecular material, and/or described interior electrode (210) and described external electrode (220) are made up of Copper Foil.
8. surface mounting fuse protector as claimed in claim 7, it is characterized in that, described macromolecular material comprises substrate for printed circuit board, thermoplastics and thermoset plastics.
9. surface mounting fuse protector as claimed in claim 1, is characterized in that, described fuse (400) is connected with described interior electrode (210) through welding.
10. surface mounting fuse protector as claimed in claim 1, it is characterized in that, described fuse (400) is spirality or linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478558.6U CN204230191U (en) | 2014-08-22 | 2014-08-22 | A kind of surface mounting fuse protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478558.6U CN204230191U (en) | 2014-08-22 | 2014-08-22 | A kind of surface mounting fuse protector |
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| CN204230191U true CN204230191U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420478558.6U Active CN204230191U (en) | 2014-08-22 | 2014-08-22 | A kind of surface mounting fuse protector |
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| CN (1) | CN204230191U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923636A (en) * | 2016-10-12 | 2019-06-21 | 世倍特集团有限责任公司 | Electronic building brick with the device for current limliting |
| CN112673447A (en) * | 2018-11-26 | 2021-04-16 | 太平洋精工株式会社 | Substrate surface mounted fuse |
| US11017972B2 (en) | 2016-03-25 | 2021-05-25 | Suzhou Littelfuse Ovs Co., Ltd. | Solderless surface mount fuse |
| CN113597656A (en) * | 2019-03-12 | 2021-11-02 | 昕诺飞控股有限公司 | Holder for snapping a thermal fuse onto an electronic component |
-
2014
- 2014-08-22 CN CN201420478558.6U patent/CN204230191U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11017972B2 (en) | 2016-03-25 | 2021-05-25 | Suzhou Littelfuse Ovs Co., Ltd. | Solderless surface mount fuse |
| CN109923636A (en) * | 2016-10-12 | 2019-06-21 | 世倍特集团有限责任公司 | Electronic building brick with the device for current limliting |
| CN109923636B (en) * | 2016-10-12 | 2021-03-12 | 世倍特集团有限责任公司 | Electronic assembly with means for limiting current |
| US11362511B2 (en) | 2016-10-12 | 2022-06-14 | Vitesco Technologies GmbH | Electronic unit having an assembly for limiting current |
| CN112673447A (en) * | 2018-11-26 | 2021-04-16 | 太平洋精工株式会社 | Substrate surface mounted fuse |
| CN113597656A (en) * | 2019-03-12 | 2021-11-02 | 昕诺飞控股有限公司 | Holder for snapping a thermal fuse onto an electronic component |
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