CN202042630U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN202042630U CN202042630U CN2011200122231U CN201120012223U CN202042630U CN 202042630 U CN202042630 U CN 202042630U CN 2011200122231 U CN2011200122231 U CN 2011200122231U CN 201120012223 U CN201120012223 U CN 201120012223U CN 202042630 U CN202042630 U CN 202042630U
- Authority
- CN
- China
- Prior art keywords
- tin ball
- electric connector
- matrix
- conducting terminal
- kink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model discloses an electric connector, which comprises an insulating body, conducting terminals and solder balls. The insulating body is provided with a plurality of terminal holding holes, the conducting terminals are arranged in the terminal holding holes, oblique guiding surfaces are arranged at bottoms of the terminal holding holes, projections are disposed in the terminal holding holes, each conducting terminal consists of a base, an elastic arm above the base and an elastic portion extending downwards from the base, each elastic portion is provided with a bent arc-shaped lower bending portion, one side of each solder ball matches with the corresponding lower bending portion, and the other opposite side of each solder ball matches with the upper edge of the corresponding guiding surface and the corresponding projection.
Description
[technical field]
The utility model relates to a kind of electric connector, especially a kind of electric connector that electrically connects between printed circuit board (PCB) and the chip module of reaching.
[background technology]
Electric connector is widely used in being used to electrically connect chip module and printed circuit board (PCB) in the various electronic equipments.Existing electric connector generally comprises insulating body and is contained in conducting terminal in the insulating body.Conducting terminal comprises the holding parts in the terminal accommodation holes that is immobilizated in insulating body, from the upwardly extending elastic contact part of holding parts and from the downward weld part that extends of holding parts.Weld part below is provided with the tin ball with the printed circuit board (PCB) welding, this tin ball generally be gluing on the weld part or heating earlier the tin ball is planted on weld part, therefore increased the processing procedure that tin ball and weld part are assembled.
The novel patent of TaiWan, China M373024 patent has disclosed a kind of electric connector that addresses the aforementioned drawbacks.This electric connector comprises insulating body with terminal accommodation holes and the conducting terminal that is contained in terminal accommodation holes.The conducting terminal bottom is provided with the hook part of bending, and side half one of tin ball is caught in this hook part, and the top of tin ball is withstood by terminal accommodation holes greater than the terminal accommodation holes event because of it, so this tin ball is clamped by conducting terminal and terminal accommodation holes.Yet, because this tin ball opposite side without hindrance block material relative with the hook part stop, thus the tin ball easily drop out from this side, thereby influence welding between conducting terminal and the circuit board.
Given this, be necessary to overcome the defective of above-mentioned electric connector in fact.
[utility model content]
The technical problem that the utility model solved provides a kind of electric connector that increases tin ball retain strength.
In order to solve the problems of the technologies described above, the utility model provides a kind of electric connector, it comprises the insulating body that is provided with the plurality of terminals accepting hole, be located at conducting terminal and tin ball in the described terminal accommodation holes, described terminal accommodation holes bottom surface is provided with the guide surface of inclination, be provided with protuberance in the described terminal accommodation holes, described conducting terminal comprises matrix, the elastic arm of being located at the matrix top reaches from the downward elastic portion of matrix, described elastic portion is provided with kink under the arc of bending, one side of described tin ball cooperates with described kink down, and opposite side cooperates with the top edge and the described protuberance of described guide surface relatively.
The lower limb of wherein said protuberance cooperates with described tin ball.Described kink down contacts with described tin sphere, and the top edge of described protuberance lower limb and described guide surface contacts with described tin ball point respectively, forms two contact points.The following kink of described conducting terminal extends to the Lower Half of tin ball but does not extend to tin ball bottom, and two contact points that the lower limb of described protuberance and the top edge of guide surface form are positioned at the first half of tin ball, but are lower than the top of tin ball.The terminal accommodation holes side walls collapse that described protuberance is relative forms the recess for the elastic portion strain of conducting terminal.The elastic portion of described conducting terminal is stung the side in described tin ball.The elastic portion of described conducting terminal coats a side of described tin ball.The matrix both sides extension of described conducting terminal is provided with leads thorn, and both sides, described matrix top extend upward and are provided with connecting portion, and the matrix top is provided with the transition part that extends straight up between two connecting portions, and described elastic arm tilts to extend upward in described transition part top.The relative both sides of described terminal accommodation holes are provided with the holding slot of fixing conducting terminal, lead thorn and the connecting portion both sides of described matrix both sides are interfered and to be immobilizated in the described holding slot, and the matrix of described conducting terminal, connecting portion and transition part are posted by the same sidewall of described terminal accommodation holes.Described elastic portion comprises the last kink of bending forward and the described kink down that is bent to form backward from described upward kink end, and described upward kink and described elastic arm are positioned at the homonymy of described matrix.
Compare with correlation technique, tin ball of the present utility model is by conducting terminal, the protuberance of terminal accommodation holes and the top edge phase fixing of guide surface, the protuberance of terminal accommodation holes and the top edge of guide surface form two contact points and the tin ball time can accurately be located in assembling prevent that the tin ball excessively is pressed into terminal and holds the hole, and have grasp can prevent that the tin ball from dropping out terminal accommodation holes to the tin ball.
[description of drawings]
Fig. 1 is the constitutional diagram of the utility model electric connector.
Fig. 2 is the exploded view of the utility model electric connector.
Fig. 3 is the exploded view at another visual angle of the utility model electric connector.
Fig. 4 is for being the three-dimensional cutaway view along the A-A line of Fig. 1.
Fig. 5 is similar to Fig. 4, is the cutaway view at another visual angle.
[embodiment]
Consult Figure 1 and Figure 2, electric connector of the present utility model, the electric connection that is mainly used to reach chip module (not shown) and printed circuit board (PCB) (not shown).This electric connector comprises insulating body 2 and is contained in conducting terminal 3 in the insulating body 2.
Consult Fig. 2 and shown in Figure 3, conducting terminal 3 be provided with tabular matrix 30, matrix 30 left and right sides outwards protrude out be provided with somely lead thorn 300, both sides, matrix 30 top have extended upward connecting portion 31.Matrix 30 tops are provided with the transition part 32 that extends straight up between two connecting portions 31, transition part 32 tops are inclined upwardly and are extended with elastic arm 33, and elastic arm 33 tops are provided with the contact site 330 that contacts with chip module (not shown).Matrix 30 center bottom are provided with the elastic portion 34 of downward extension, and described elastic portion 34 comprises the last kink 340 of bending forward and kink 341 under the arc that described upward kink 340 ends bend backward.Describedly go up the homonymy that kink 340 and elastic arm 33 are positioned at described matrix 30, described kink 341 and tin ball 4 contact matching down are with fixing tin ball 4.
Consult Fig. 2 and shown in Figure 4, insulating body 2 is provided with some terminal accommodation holes 20 of accommodating conducting terminal 3, and adjacent two row's terminal accommodation holes 20 are provided with at interval.The relative both sides of terminal accommodation holes 20 are provided with the holding slot 201 of fixing conducting terminal 3, the matrix 30 of conducting terminal 3, connecting portion 31 and transition part 32 are posted by a sidewall 200 of terminal accommodation holes 20, and the lead thorn 300 and connecting portion 31 both sides and holding slot 201 of matrix 30 both sides are interfered with fixing conducting terminal 3.The sidewall 200 of terminal accommodation holes 20 bottoms forms the recess 202 of elastic portion 34 strains that supply conducting terminal 3 to sidewall 200 sunken insides.Consult Fig. 4 and shown in Figure 5, recess 202 relative sidewalls 200 are provided with to the projecting inward protuberance 203 of terminal accommodation holes 20, described terminal accommodation holes 20 bottom surfaces are provided with the angular guide surfaces 204 that guiding tin ball 4 enters this terminal accommodation holes 20, and the top edge of the lower limb of described protuberance 203 and described guide surface 204 forms two contact points 2030,2040 of butt tin ball 4 respectively.
The following kink 341 of conducting terminal 3 of the present utility model is coated on a side of tin ball 4, carrying out face with tin ball 4 contacts, this time kink 341 extends to the Lower Half of tin ball 4 but does not extend to tin ball 4 bottoms, the opposite side of tin ball 4 and two contact points 2030,2040 connect, this two contact point 2030,2040 is positioned at the first half of tin ball 4, but be lower than the top of tin ball 4, this structure can realize the stable position of tin ball 4, makes tin ball 4 be difficult for dropping out terminal accommodation holes 20 and can prevent that tin ball 4 from causing conducting terminal 3 to withdraw from the overvoltage of when assembling.Tin ball 4 of the present utility model also can thrust in the tin ball 4 by the following kink 341 of conducting terminal 3 fixes the one side, and opposite side is fixing by two contact points 2030,2040, has therefore improved the welding effect of tin ball 4 with printed circuit board (PCB) (not shown).
Should be understood that, the above only is a preferred forms of the present utility model, it or not whole execution modes, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.
Claims (10)
1. electric connector, it comprises: the insulating body that is provided with the plurality of terminals accepting hole, be located at conducting terminal and tin ball in the described terminal accommodation holes, described terminal accommodation holes bottom surface is provided with the guide surface of inclination, be provided with protuberance in the described terminal accommodation holes, described conducting terminal comprises matrix, be located at the elastic arm of matrix top and from the downward elastic portion of matrix, described elastic portion is provided with kink under the arc of bending, it is characterized in that: a side of described tin ball cooperates with described kink down, and opposite side cooperates with the top edge and the described protuberance of described guide surface relatively.
2. electric connector as claimed in claim 1 is characterized in that: the lower limb of described protuberance cooperates with described tin ball.
3. electric connector as claimed in claim 2 is characterized in that: described kink down contacts with described tin sphere, and the top edge of described protuberance lower limb and described guide surface contacts with described tin ball point respectively, forms two contact points.
4. electric connector as claimed in claim 3, it is characterized in that: the following kink of described conducting terminal extends to the Lower Half of tin ball but does not extend to tin ball bottom, two contact points that the lower limb of described protuberance and the top edge of guide surface form are positioned at the first half of tin ball, but are lower than the top of tin ball.
5. electric connector as claimed in claim 4 is characterized in that: the terminal accommodation holes side walls collapse that described protuberance is relative forms the recess for the elastic portion strain of conducting terminal.
6. electric connector as claimed in claim 5 is characterized in that: the elastic portion of described conducting terminal is stung the side in described tin ball.
7. electric connector as claimed in claim 5 is characterized in that: the elastic portion of described conducting terminal coats a side of described tin ball.
8. as claim 6 or 7 described electric connectors, it is characterized in that: the matrix both sides extension of described conducting terminal is provided with leads thorn, both sides, described matrix top extend upward and are provided with connecting portion, the matrix top is provided with the transition part that extends straight up between two connecting portions, described elastic arm tilts to extend upward in described transition part top.
9. electric connector as claimed in claim 8, it is characterized in that: the relative both sides of described terminal accommodation holes are provided with the holding slot of fixing conducting terminal, lead thorn and the connecting portion both sides of described matrix both sides are interfered and to be immobilizated in the described holding slot, and the matrix of described conducting terminal, connecting portion and transition part are posted by the same sidewall of described terminal accommodation holes.
10. electric connector as claimed in claim 9, it is characterized in that: described elastic portion comprises the last kink of bending forward and the described kink down that is bent to form backward from described upward kink end, and described upward kink and described elastic arm are positioned at the homonymy of described matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200122231U CN202042630U (en) | 2011-01-14 | 2011-01-14 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200122231U CN202042630U (en) | 2011-01-14 | 2011-01-14 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042630U true CN202042630U (en) | 2011-11-16 |
Family
ID=44970056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200122231U Expired - Lifetime CN202042630U (en) | 2011-01-14 | 2011-01-14 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042630U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8708716B1 (en) | 2012-11-12 | 2014-04-29 | Lotes Co., Ltd. | Electrical connector |
| CN107968284A (en) * | 2017-09-11 | 2018-04-27 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN108092024A (en) * | 2017-12-01 | 2018-05-29 | 番禺得意精密电子工业有限公司 | Electric connector |
-
2011
- 2011-01-14 CN CN2011200122231U patent/CN202042630U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8708716B1 (en) | 2012-11-12 | 2014-04-29 | Lotes Co., Ltd. | Electrical connector |
| CN107968284A (en) * | 2017-09-11 | 2018-04-27 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN107968284B (en) * | 2017-09-11 | 2020-06-09 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN108092024A (en) * | 2017-12-01 | 2018-05-29 | 番禺得意精密电子工业有限公司 | Electric connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |