CN102522636B - Electric connector and making method thereof - Google Patents
Electric connector and making method thereof Download PDFInfo
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- CN102522636B CN102522636B CN201110414445.0A CN201110414445A CN102522636B CN 102522636 B CN102522636 B CN 102522636B CN 201110414445 A CN201110414445 A CN 201110414445A CN 102522636 B CN102522636 B CN 102522636B
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- electric connector
- scolder
- insulating body
- weld part
- sticker
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Abstract
The invention relates to an electric connector and a making method of the electric connector. As described below, the electric connector comprises an insulating body, at least one terminal, at least one solder and an adhesive, wherein the insulating body is provided with a lower surface and a plurality of accommodating grooves which penetrate through the insulating body, the terminal is provided with a welding part which is accommodated in the accommodating grooves, the solder is abutted to a lower side of the welding part, a part of the solder is exposed out of the lower surface , and the adhesive covers the whole solder and the lower surface. The making method comprises the following steps that firstly, the at least one terminal is respectively installed and fixed in the insulating body so that the welding part is close to the lower surface; secondly, the solder is filled from the lower surface and used for contacting with the welding part; and finally, the adhesive is sprayed on the lower surface so that the solder is fixed to the lower surface by the adhesive. In the invention, a solder ball, the terminal and the insulating body are fixed by the adhesive to form a whole body, so that the process of tack welding is saved and the solder ball can be prevented from separating from the welding part when the electric connector is shocked.
Description
Technical field
The present invention relates to a kind of electric connector and preparation method thereof, the method that espespecially a kind of electric connector terminal and scolder are fixing.
Background technology
At present, normally used a kind of electric connector of industry and preparation method thereof is as described below, comprises an insulating body, and described insulating body is provided with a plurality of accepting grooves that run through described insulating body; A plurality of terminals, are contained in respectively described accepting groove, and described in each, terminal is to downward-extension one weld part; A plurality of tin balls, are contained in respectively described accepting groove and are connected to described weld part.
If said structure electric connector is in transportation, only rely on described accepting groove to clamp described tin ball, cannot guarantee firm connection the between described weld part and described tin ball, particularly when described electric connector is given a shock, described tin ball can be separated with described weld part, and even described tin ball comes off from described accepting groove; So, need first to heat for the first time (prewelding), described weld part and described tin ball are fixed, to guarantee that described tin ball can not come off, after prewelding, described electric connector is moved on a circuit board again, then heat for the second time and make described electric connector welding to described circuit board, realization electrically conducts.Owing to commonly using in the manufacture method of electric connector, must carry out twice heating, in heating process for the first time (prewelding), the heat that described tin ball absorbs can cause the surface of described insulating body that warpage occurs, described insulating body surface smoothness is reduced, when causing heating for the second time (welding) produce empty phenomenon of welding with described motherboard; In addition, in heating process for the first time (prewelding), tin ball produces oxidative phenomena with air, then (welding) also can cause terminal and described motherboard failure welding while heating for the second time, cannot guarantee good electric connection.
Therefore,, for above-mentioned situation, the necessary a kind of electric connector and preparation method thereof of designing, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of electric connector and preparation method thereof.
In order to achieve the above object, the present invention adopts following technical scheme:
, it is characterized in that, comprise: an insulating body, described insulating body has a lower surface and a plurality of accepting groove that runs through described insulating body; At least one terminal, described terminal has a weld part and is contained in described accepting groove; At least one scolder, described scolder is connected to described weld part below and part is revealed in described lower surface; One sticker, covers whole described scolder and described lower surface.
The manufacture method of electric connector, it is characterized in that, comprise following steps: plural terminals is mounted on respectively in an insulating body, makes the weld part of described terminal near described lower surface; From described lower surface, fill scolder again, in order to contact described weld part; Towards described lower surface spraying sticker, make described scolder be fixed on described lower surface by described sticker.
Compared with prior art, the present invention fixes described tin ball and described terminal, described insulating body with described sticker, saves this process of described prewelding, and then has reduced production process, has greatly saved production cost; Described sticker is fixed on described tin ball in the described accepting groove of described body, described tin ball and described weld part are set firmly and are integrated, when having solved described electric connector and having been shaken described in the difficult problem that comes off from described accepting groove from, even described tin ball of tin ball and described welding portion.
Further, described scolder is tin ball, described weld part upwards bending extends a base portion, described base portion is contained in described accepting groove, at least one holding section is extended respectively in described base portion both sides, described in each, the dual-side of accepting groove has at least one support slot, described support slot is fixed in described holding section, described in each, base portion upwards bends and extends a contact site, described contact site exposes the upper surface of described insulating body, the bottom of described accepting groove is provided with a blocking part, in order to weld part described in butt and described scolder, make described welding position in top, described blocking part, described scolder is partly exposed to described lower surface, fill described scolder, make described scolder partly be revealed in described lower surface.After described sticker solidifies, cover described lower surface and described solder surface, in spray the Hou of described sticker towards described lower surface, the described insulating body that overturns, makes described lower surface be soldered to a circuit board down again.
For ease of better understanding object of the present invention, structure, feature and effect etc., existing the invention will be further described with embodiment by reference to the accompanying drawings.
[accompanying drawing explanation]
Fig. 1 is the flow chart of the manufacture method of electric connector of the present invention;
Fig. 2 is the perspective exploded view of electric connector of the present invention;
Fig. 3 is the cutaway view of the solid combination of electric connector of the present invention;
Fig. 4 is the cutaway view of electric connector insulating body of the present invention, terminal, scolder and sticker combination;
Fig. 5 is the cutaway view before electric connector of the present invention and welding circuit board;
Fig. 6 is the cutaway view after electric connector of the present invention and welding circuit board.
The drawing reference numeral of embodiment:
| Insulating body 1 | |
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| Accepting |
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Base portion 22 |
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Weld |
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| Sticker 4 | |
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[embodiment]
Now with embodiment, concrete grammar of the present invention is described further by reference to the accompanying drawings.
Please refer to Fig. 1, the flow chart of the manufacture method that Fig. 1 is electric connector of the present invention.
Referring again to Fig. 1 to Fig. 3, in plural terminals Fen Do An Installed is fixed in the step in an insulating body, first one insulating body 1 is provided, described insulating body 1 is tabular, described insulating body 1 has a upper surface 12 and a lower surface 13 relative with described upper surface 12, described insulating body 1 has a plurality of accepting grooves 14, and described in each, accepting groove 14 runs through respectively described upper surface 12 and the described lower surface 13 of described insulating body 1; Described in each, the side of accepting groove 14 is provided with at least one support slot 141, and the bottom of described accepting groove 14 is provided with a blocking part 142.
Separately, provide at least one terminal 2, be contained in respectively in described accepting groove 14; Described in each, the below of terminal 2 has a weld part 24, and described weld part 24 upwards bending extends a base portion 22, and at least one holding section 23 is extended respectively in described base portion 22 both sides, and described base portion 22 is bent upwards and extends to form a contact site 21.
Referring again to Fig. 1 to Fig. 3, in the described lower surface 13 from described insulating body 1, fill in the step of scolder, at least one scolder is provided, the present embodiment be take tin ball 3 as example.
Referring again to Fig. 1 and Fig. 4, in the step towards lower surface 13 spraying stickers, provide a sticker 4, described sticker 4 has certain bonding force and helps the function of weldering, and the present embodiment be take rosin as example, first described rosin heating is arrived to molten condition.
Referring again to Fig. 2 and Fig. 3, in the described terminal 2 Fen Do An Installed fixedly described in what one in the step in insulating body 1 by plural number, while assembling described terminal 2, first described terminal 2 is packed in described accepting groove 14, described base portion 22 is contained in described accepting groove 14, described support slot 141 is fixed in described holding section 23, and described weld part 24 is contained in described accepting groove 14, and described contact site 21 exposes described upper surface 12; Then, by the described lower surface 13 from described insulating body 1, filled in the step of described scolder again, from described lower surface 13, pack described tin ball 3 into described accepting groove 14, make described tin ball 3 be positioned at the below of described weld part 24, and described tin ball 3 contacts with described weld part 24, described blocking part 142, in order to weld part described in butt 24 and described tin ball 3, makes described weld part 24 be positioned at 142 tops, described blocking part, and described tin ball 3 parts are exposed to described lower surface 13; Also can first from described lower surface 13, pack tin ball 3 into described accepting groove 14, from described lower surface 13, pack described terminal 2 into described accepting groove 14 again, along the direction perpendicular with packing direction into, observe, described tin ball 3 be positioned at described weld part 24 under, and with described weld part 24 close contacts, that part that described tin ball 3 exposes described lower surface 13 forms obvious projections at described lower surface 13; After this step finishes; enter towards the step of the described sticker 4 of described lower surface 13 spraying; the described rosin of molten condition is sprayed on to the surface of described lower surface 13 and described tin ball 3; after rosin is cooling; surface at described lower surface 13 and described tin ball 3 forms layer protecting film; after described sticker 4 solidifies, cover described lower surface 13 and described tin ball 3 surfaces, this is the step of solidifying described sticker 4.And then described tin ball 3 is fixed together with described lower surface 13, described terminal 2.(not shown) in another embodiment, described sticker 4 is the mixture of described rosin and an alcohol, under normal temperature, first rosin is dissolved in alcoholic solution, form a liquefied mixture, then described mixture is sprayed or brushed to described lower surface 13 and described tin ball 3 surfaces, speed for speed production, suitably hot spraying or brush are at described lower surface 13 and the surperficial described mixture of described tin ball 3, because described alcohol is volatile, when particularly described alcohol is heated, therefore in heating process, described alcohol vapors away, after cooling, described rosin forms layer protecting film on the surface of described lower surface 13 and described tin ball 3, cover described lower surface 13 and described tin ball 3 surfaces, and then described tin ball 3 and described lower surface 13, described terminal 2 is fixed together.
Please refer to Fig. 5 and Fig. 6, after described sticker 4 is curing cooling, both can enter last Ge step, described insulating body 1 overturns, make described lower surface 13 down, finally by described electric connector welding to circuit board 5, described tin ball 3 is aimed at the solder joint 51 on described circuit board 5, heat described tin ball 3, because the fusion temperature of described rosin is 110 to 135 degree, the fusion temperature of described tin ball 3 is more than 200 degree, therefore during heating, described rosin can first melt, the liquid being fused into can be scrubbed described solder joint 51, reach the effect of cleaning described solder joint 51, when temperature reaches 245 while spending, described rosin volatilizees, described tin ball 3 just starts fusing this moment, and then can realize the good welds of described tin ball 3 and described circuit board 5 the above solder joint 51.
In sum, the present invention has following beneficial effect:
1. with rosin, fix tin ball and terminal, insulating body, can save this process of prewelding, and then reduced production process, greatly saved production cost, save this operation of prewelding, can effectively prevent in prewelding process, the heat that heats described tin ball generation causes the problem of body surface injustice, and then has improved the quality of product.
2. sticker is fixed on tin ball in the accepting groove of insulating body, tin ball and weld part is set firmly and be integrated, and has solved tin ball and welding portion when electric connector is shaken from a, difficult problem that even tin ball comes off from accepting groove.
3. sticker is selected and is had the rosin that helps weldering function, therefore when tin ball bonding is connected to circuit board, rosin melted by heat becomes liquid can scrub solder joint, reaches the effect of cleaning solder joint, can help tin ball good welds to solder joint.
4. adopt sticker to solidify tin ball to weld part, saved prewelding, prevent the oxidation by air of being heated of tin ball, then by electric connector welding to circuit board, can make the welding effect of tin ball reach better.
Only more than describe the explanation for the present invention's preferred embodiment in detail, the scope of the claims of non-so limitation the present invention, so all utilizations specification of the present invention and diagramatic content institute for it equivalence techniques change, and are all contained in the scope of the claims of the present invention.
Claims (10)
1. an electric connector, is characterized in that, comprises:
One insulating body, described insulating body has a lower surface and a plurality of accepting groove that runs through described insulating body;
At least one terminal, described terminal has a weld part and is contained in described accepting groove;
At least one scolder, described scolder is connected to described weld part below and part is revealed in described lower surface;
One sticker, covers whole described scolder and described lower surface.
2. a kind of electric connector as claimed in claim 1, is characterized in that: described scolder is tin ball.
3. a kind of electric connector as claimed in claim 1, it is characterized in that: described in each, weld part upwards bends and extends a base portion, described base portion is contained in described accepting groove, at least one holding section is extended respectively in described base portion both sides, described in each, the dual-side of accepting groove has at least one support slot, and described support slot is fixed in described holding section.
4. a kind of electric connector as claimed in claim 1, is characterized in that: described in each, weld part upwards bends and extends a base portion, and described base portion upwards bending extends a contact site, and described contact site exposes the upper surface of described insulating body.
5. a kind of electric connector as claimed in claim 1, it is characterized in that: the bottom of described accepting groove is provided with a blocking part, in order to weld part described in butt and described scolder, make described welding position in top, described blocking part, described scolder is partly exposed to described lower surface.
6. a manufacture method for electric connector as claimed in claim 1, is characterized in that, comprises following steps:
Plural terminals is mounted on respectively in described insulating body, makes described weld part near described lower surface;
From described lower surface, fill scolder again, in order to contact described weld part;
Towards described lower surface, spray described sticker, make described scolder be fixed on described lower surface by described sticker.
7. the manufacture method of a kind of electric connector as claimed in claim 6, is characterized in that: fill described scolder, make described scolder be positioned at described weld part below, and contact with described weld part.
8. the manufacture method of a kind of electric connector as claimed in claim 6, is characterized in that: fill described scolder, make described scolder partly be revealed in described lower surface.
9. the manufacture method of a kind of electric connector as claimed in claim 6, is characterized in that: after described sticker solidifies, cover whole described lower surface and described solder surface.
10. the manufacture method of a kind of electric connector as claimed in claim 6, is characterized in that: in after described lower surface sprays described sticker, the described insulating body that overturns, makes described lower surface be soldered to a circuit board down again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414445.0A CN102522636B (en) | 2011-12-13 | 2011-12-13 | Electric connector and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414445.0A CN102522636B (en) | 2011-12-13 | 2011-12-13 | Electric connector and making method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522636A CN102522636A (en) | 2012-06-27 |
| CN102522636B true CN102522636B (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110414445.0A Active CN102522636B (en) | 2011-12-13 | 2011-12-13 | Electric connector and making method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102522636B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493650B (en) * | 2018-02-05 | 2019-11-26 | 番禺得意精密电子工业有限公司 | Electric connector |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931598A (en) * | 1988-12-30 | 1990-06-05 | 3M Company | Electrical connector tape |
| WO1997013295A1 (en) * | 1995-10-06 | 1997-04-10 | The Whitaker Corporation | Connector and manufacturing method therefor |
| JP2000306653A (en) * | 1999-04-20 | 2000-11-02 | Denso Corp | Connector for wire bonding and its manufacture |
| US6827586B2 (en) * | 2002-01-30 | 2004-12-07 | Molex Incorporated | Low-profile connector for circuit boards |
| CN2548295Y (en) * | 2002-05-20 | 2003-04-30 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN2724265Y (en) * | 2004-05-17 | 2005-09-07 | 拓洋实业股份有限公司 | Lapping tin ball device for electric connector |
| CN100440628C (en) * | 2005-10-17 | 2008-12-03 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN2904388Y (en) * | 2006-03-17 | 2007-05-23 | 番禺得意精密电子工业有限公司 | Improvement of electric connector |
| CN101154782B (en) * | 2006-09-29 | 2010-09-08 | 富士康(昆山)电脑接插件有限公司 | Electric connector and manufacturing method thereof |
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| CN102522636A (en) | 2012-06-27 |
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