CN101685914A - Electric connector terminal and method for positioning tinned ball on same - Google Patents
Electric connector terminal and method for positioning tinned ball on same Download PDFInfo
- Publication number
- CN101685914A CN101685914A CN200810156721A CN200810156721A CN101685914A CN 101685914 A CN101685914 A CN 101685914A CN 200810156721 A CN200810156721 A CN 200810156721A CN 200810156721 A CN200810156721 A CN 200810156721A CN 101685914 A CN101685914 A CN 101685914A
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- China
- Prior art keywords
- electric connector
- connector terminal
- base portion
- weld part
- tin ball
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Abstract
The invention discloses an electric connector terminal which is formed by pressing and bending copper material and comprises a fixed holding part, a contact part and a welding part, wherein the contact part and the welding part extend out of the fixed holding part; the bottom of the welding part is concavely provided with a groove or a hole for positioning a tinned ball; and the surface of the groove or the hole is provided with a nickel coating for increasing coarseness, thereby increasing the jointing firmness of the tinned ball and the electric connector terminal.
Description
[technical field]
The present invention relates to a kind of electric connector terminal and the tin ball is positioned at method on this electric connector terminal.
[background technology]
Be connected with the tin ball between a kind of common electric connector terminal, this terminal and circuit board.This kind terminal is generally by the punch forming of copper material, and it comprises the holding parts that is immobilizated in the electric connector insulating body, contact with other electronic components with the contact site of realizing electronic component and circuit board electric connection and the weld part that is used to engage the tin ball.The ball plane is planted for what engage the tin ball in the bottom surface of described weld part.Then, the nickeliferous protective layer of one deck is electroplated on the surface of terminal, and is oxidized to prevent the copper material.Subsequently, after terminal is assembled in the insulating body, the tin ball is sticked together planting on the ball plane again.When electric connector is installed on circuit board, terminal is planted the ball plane when needing to engage with the electric contact of circuit board, must at high temperature act on, because nickel coating is dense, this moment, the tin ball easily planting generation drift phenomenon between ball plane and electric contact, caused tin ball and electric contact to be difficult for the location and empty weldering phenomenon in reflow process.
Based on above-mentioned defective, necessary existing electric connector and solder ball positioning method are improved.
[summary of the invention]
Problem to be solved by this invention provides a kind of electric connector terminal and the tin ball is located method on it, and it can increase the strong degree that electric connector terminal engages the tin ball.
For achieving the above object, the present invention can adopt following technical scheme: a kind of electric connector terminal, by copper material punching press bending forming, this electric connector terminal comprises holding parts and by extended contact site of holding parts and weld part, the bottom of described weld part is concaved with groove or the hole that is used to locate the tin ball, and the surface in described groove or hole is provided with nickel coating.
The bottom of the weld part of electric connector terminal of the present invention is concaved with groove or hole to increase roughness, makes that the tin ball is firm to be positioned at groove or place, hole, thereby increases the strong degree that electric connector terminal engages the tin ball, avoids the generation of empty weldering phenomenon.
For achieving the above object, the present invention also can adopt following technical scheme: a kind of the tin ball is positioned the method for electric connector terminal, it comprises the steps: one, copper material punching press bending forming is had the electric connector terminal of holding parts, contact site and weld part; Two, stamp out groove or hole in the bottom of weld part; Three, at the nickeliferous protective layer of electric connector terminal electroplating surface one deck; Four, the electric connector terminal after the moulding is assembled in the accepting groove that is arranged at the electric connector insulating body; Five, the tin ball is sticked together at the groove of weld part or place, hole; Six, make the melting of tin ball electric connector terminal is bonded on the joint of a circuit board through heating.
The present invention adopts this method to make weld part enough roughness be arranged with tin ball location, thereby increases the strong degree that electric connector terminal engages the tin ball, avoids the generation of empty weldering phenomenon.
[description of drawings]
Fig. 1 is the stereogram of electric connector terminal of the present invention in the tin ball.
Fig. 2 is the three-dimensional exploded view of another angle of Fig. 1.
Fig. 3 is a manufacturing flow chart of the present invention
Fig. 4 is the stereogram of another embodiment of the present invention electric connector terminal and tin ball.
[embodiment]
Please join Fig. 1 and Fig. 2, electric connector terminal 1 of the present invention is by copper material bending forming, and be contained in the insulating body (not shown) of electric connector, it comprises holding parts 10 in the accepting groove that is immobilizated in insulating body, by holding parts 10 extended elastic contact arm 11 of bending and weld parts 12.Described holding parts 10 comprises the base portion 101 of vertical extension, by an end of base portion 101 to horizontally extending first holding division 102 in both sides and second holding division 103 that extend horizontally away to a side by the centre position of base portion 101.Described first, second holding division 102,103 is provided with and is used for the hangnail that cooperates with the inwall interference of accepting groove.Described elastic contact arm 11 is extended by 102 bendings of first holding division, and the end of this elastic contact arm 11 is provided with the contact site 13 that contacts and cooperate with other electron component (not shown).Described weld part 12 extends in the form of sheets and by the other end level bending of base portion 101, its bottom forms plants sphere 121, the described sphere 121 of planting is concaved with cross recess 122, and it is oxidized to prevent the copper material that the surface of described cross recess and whole electric connector terminal 1 is provided with nickel coating.Described cross recess 122 places engage a tin ball 2.When electric connector was assembled in a circuit board (not shown), electric connector terminal 1 was welded on the electric contact of circuit board by tin ball 2 correspondences, and tin ball 2 is positioned between weld part 12 and electric contact at this moment.
Method flow of the present invention as shown in Figure 3, described electric connector terminal 1 (joining illustrated in figures 1 and 2) forms holding parts 10, elastic contact arm 11 and weld part 12 by copper material punching press bending forming; The sphere 121 of planting at weld part 12 stamps out cross recess 122 again; At the nickeliferous protective layer of electroplating surface one deck of electric connector terminal 1, oxidized then with the electric connector terminal 1 that prevents to form by the copper material; Then electric connector terminal 1 is assembled in the accepting groove that is arranged at the electric connector insulating body, wherein plants the opening that sphere 121 points to accepting groove; Subsequently, stick together tin ball 2 with ball attachment machine at cross recess 122 places that electric connector terminal is planted sphere 121; Just can utilize high temperature the sphere 121 of planting of electric connector terminal 1 to be engaged the melting of tin ball with the electric contact of circuit board afterwards.
The sphere 121 of planting of described electric connector terminal 1 is concaved with cross recess 122 and makes that to plant sphere 121 be not a continuous plane, can increase the roughness of planting sphere 121 to increase the strong degree of electric connector terminal and tin ball bond, thereby the drift of tin ball when reducing electric connector terminal and engaging with the electric contact of circuit board guarantees that electric connector terminal is positioned on the electric contact and with electric contact well to contact.The nickel dam of described electric connector terminal is after cross recess is set, so can't destroy nickel dam in case electric connector terminal is oxidized, simultaneously, electric connector terminal is assembled into and can sticks together tin ball (generally in two or three days all can) behind the insulating body at once, to make things convenient for the deploying of processing procedure.
Please join Fig. 4, be second embodiment of the present invention mode, the sphere 121 of planting of described electric connector terminal 1 is not arranged with cross recess 122 but offers the round taper hole 123 that runs through weld part 12 on weld part 12.Described round taper hole is the turbination hole, and the opening of its upside is greater than the opening of downside, and can partly the fit surface of tin ball 2 of the inwall of round taper hole 123, and tin ball 2 is sticked together in bellmouth 123.Described round taper hole 123 also can increase the roughness of planting sphere 121, thereby can increase the strong degree that electric connector terminal 1 engages with tin ball 2.Certainly, the groove of described electric connector terminal weld part or bellmouth can change according to user's needs, cross recess for example shown in Figure 3, or the groove of spider fin and other shape; Round taper hole for example shown in Figure 4, or the hole of polygon bellmouth and other shape all can increase the roughness of planting sphere, thereby increase the strong degree of electric connector terminal and tin ball bond.
Claims (10)
1. electric connector terminal, by copper material punching press bending forming, this electric connector terminal comprises holding parts and by extended contact site of holding parts and weld part, it is characterized in that: the bottom of described weld part is concaved with groove or the hole that is used to locate the tin ball, and the surface in described groove or hole is provided with nickel coating.
2. electric connector terminal as claimed in claim 1 is characterized in that: the bottom of described weld part forms plants sphere, and described groove is arranged with from planting sphere.
3. electric connector terminal as claimed in claim 2 is characterized in that: described groove is cross recess or spider fin.
4. electric connector terminal as claimed in claim 1 is characterized in that: described hole is conical through-hole and runs through weld part.
5. electric connector terminal as claimed in claim 4 is characterized in that: described bellmouth is round taper hole or polygon bellmouth, and this bellmouth is reverse taper hole, and its open lower side is greater than last side opening.
6. as each described electric connector terminal among the claim 1-5, it is characterized in that: first holding division and second holding division that described holding parts comprises base portion, extended by base portion, described weld part is extended by the bending of base portion one end level, elastic contact arm is extended in described first holding division bending, and described contact site is located at the end of elastic contact arm.
7. electric connector terminal as claimed in claim 6 is characterized in that: described base portion vertically extends, first holding division by the base portion other end to the both sides horizontal-extending, second holding division by the centre position of base portion to a side horizontal-extending.
8. one kind is positioned the tin ball for method as each described electric connector terminal among the above-mentioned claim 1-5, and it comprises the steps: one, copper material punching press bending forming is had the electric connector terminal of holding parts, contact site and weld part; Two, stamp out groove or hole in the bottom of weld part; Three, at the nickeliferous protective layer of electric connector terminal electroplating surface one deck; Four, the electric connector terminal after the moulding is assembled in the accepting groove that is arranged at the electric connector insulating body; Five, the tin ball is sticked together at the groove of weld part or place, hole; Six, make the melting of tin ball electric connector terminal is bonded on the joint of a circuit board through heating.
9. the method that the tin ball is positioned electric connector terminal as claimed in claim 8, it is characterized in that: first holding division and second holding division that described holding parts comprises base portion, extended by base portion, described weld part is extended by the bending of base portion one end level, elastic contact arm is extended in described first holding division bending, and described contact site is located at the end of elastic contact arm.
10. the method that the tin ball is positioned electric connector terminal as claimed in claim 9, it is characterized in that: described base portion vertically extends, first holding division by the base portion other end to the both sides horizontal-extending, second holding division by the centre position of base portion to a side horizontal-extending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810156721A CN101685914A (en) | 2008-09-24 | 2008-09-24 | Electric connector terminal and method for positioning tinned ball on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810156721A CN101685914A (en) | 2008-09-24 | 2008-09-24 | Electric connector terminal and method for positioning tinned ball on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101685914A true CN101685914A (en) | 2010-03-31 |
Family
ID=42048946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810156721A Pending CN101685914A (en) | 2008-09-24 | 2008-09-24 | Electric connector terminal and method for positioning tinned ball on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101685914A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296562A (en) * | 2012-03-03 | 2013-09-11 | 汯璟股份有限公司 | Forming method of power connector |
| CN103296554A (en) * | 2012-03-02 | 2013-09-11 | 汯璟股份有限公司 | Method for manufacturing components of network connector |
| CN103887676A (en) * | 2014-04-01 | 2014-06-25 | 东莞市仁丰电子科技有限公司 | Processing method for radio frequency wires to punch PIN terminals |
-
2008
- 2008-09-24 CN CN200810156721A patent/CN101685914A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296554A (en) * | 2012-03-02 | 2013-09-11 | 汯璟股份有限公司 | Method for manufacturing components of network connector |
| CN103296562A (en) * | 2012-03-03 | 2013-09-11 | 汯璟股份有限公司 | Forming method of power connector |
| CN103887676A (en) * | 2014-04-01 | 2014-06-25 | 东莞市仁丰电子科技有限公司 | Processing method for radio frequency wires to punch PIN terminals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100331 |