CN202695786U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN202695786U CN202695786U CN 201220162110 CN201220162110U CN202695786U CN 202695786 U CN202695786 U CN 202695786U CN 201220162110 CN201220162110 CN 201220162110 CN 201220162110 U CN201220162110 U CN 201220162110U CN 202695786 U CN202695786 U CN 202695786U
- Authority
- CN
- China
- Prior art keywords
- electric connector
- contact site
- holding parts
- insulating body
- tin ball
- 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 - Fee Related
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- Connecting Device With Holders (AREA)
Abstract
An electric connector is used for electrically connecting a chip module group to a circuit board. The electric connector comprises an insulation body and several conductive terminals fixedly held in the insulation body; the insulation body possesses oppositely-positioned upper and lower surfaces and several terminal accepting grooves penetrating the upper and lower surfaces; the conductive terminal comprises a holding portion, a welding connected with the holding portion and an elastic arm; and the elastic arm comprises an elastic deformation portion, a tin ball contact portion which is concave downwards and connected with the elastic deformation portion, and a conducting strip contact portion extended obliquely upwards from the tin ball contact portion. According to the electric connector provided in the utility model, the conductive terminal can be respectively applied for a ball grid array (BGA) chip module group and a plane grid array (LGA) chip module group to be electrically connected with a circuit board, and the stability and reliability of electric connection are guaranteed.
Description
[technical field]
The utility model is about a kind of electric connector, refers in particular to a kind of electric connector of being electrically connected between chip module and circuit board realized.
[background technology]
The chip module of at present extensive use has needle-like grid array (PGA) chip module, ball-shaped grid array (BGA) chip module peace face grid array (LGA) chip module, and usually is only applicable to wherein one type chip module for connecting the electric connector of chip module to circuit board.Disclosed a kind of electric connector relevant with the utility model such as TaiWan, China patent announcement I264159 patent, it can provide the electric connection between ball-shaped grid array (BGA) chip module and circuit board, and this electric connector comprises the insulating body of a rectangular structure and is contained in the interior some conducting terminals of insulating body.Each conducting terminal all has a pars intermedia, the pin that extends to form downwards from pars intermedia and the elastic arm that extends to form from the pars intermedia bending.Wherein, elastic arm is provided with protruding curved portions to circuit board in the zone near its free terminal, when the chip module is stressed when being crimped on the conducting terminal, between chip module and conducting terminal, provide stable, be electrically conducted reliably thereby this curved portions is coated on the bottom of the contact ball of chip module.
Yet, the conducting terminal of above-mentioned electric connector is only applicable to being connected of ball-shaped grid array (BGA) chip module and circuit board, when needs connect the chip module of other type, this electric connector just can not use, must remove from circuit board, change another electric connector, so then so that waste of material, production cost improves.
Therefore, necessary a kind of improved electric connector, the defective that exists to overcome prior art of providing.
[utility model content]
The purpose of this utility model provides a kind of electric connection and assurance that can be applied to respectively ball-shaped grid array (BGA) chip module peace face grid array (LGA) chip module and circuit board and is electrically connected reliable and stable electric connector.
The utility model electric connector can be achieved through the following technical solutions: a kind of electric connector, be used for being electrically connected the chip module to circuit board, described electric connector comprises insulating body and some conducting terminals that is immobilizated in the insulating body, described insulating body has relative upper, lower surface and running through, some terminal containing slots of lower surface, described conducting terminal comprises holding parts, the weld part that links to each other with holding parts and elastic arm, wherein said elastic arm comprises strain section, be connected with strain section to the tin ball contact site of lower recess and from the tin ball contact site upwardly extending conducting strip contact site that tilts.
The utility model further defines, and when described conducting terminal was in free state, described tin ball contact site was in the below of insulating body upper surface, and the conducting strip contact site is in insulating body upper surface top.
The utility model further defines, and is provided with supporting lug in the terminal containing slot of described insulating body, and behind the conducting terminal pressurized, supporting lug can be used for supporting the tin ball contact site of conducting terminal.
The utility model further defines, and described conducting terminal comprises a junction, and described weld part is connected with holding parts by connecting portion.
The utility model further defines, and described elastic arm and described weld part are perpendicular to described holding parts.
The utility model further defines, described strain section comprise extend obliquely the first curved portions of then being bent to form downwards from the weld part upper end, from the oblique downward-extension of the first curved portions the second curved portions of forming of back bending and extend the 3rd curved portions that then extends to form again obliquely and towards the first curved portions downwards from the second curved portions upwards then.
The utility model further defines, and described holding parts extends to the upper surface of insulating body.
The utility model further defines, the common holding slot of accommodating the conducting terminal holding parts that forms of a sidewall of described supporting lug and terminal containing slot.
The utility model further defines, and described tin ball contact site also is provided with the pit of arc.
The utility model further defines, and the projection of described tin ball contact site on vertical holding parts direction falls within on the holding parts.
Compared with prior art, the elastic arm of the conducting terminal of the utility model electric connector is provided with to the tin ball contact site of lower recess and from the tin ball contact site upwardly extending conducting strip contact site that tilts, tin ball contact site can be used for touching with the winding of ball-shaped grid array (BGA) chip dies, the conducting strip contact site can be used for touching with the winding of planar lattice array (LGA) chip dies, therefore, the conducting terminal of the utility model electric connector can be applied to respectively the electric connection of ball-shaped grid array (BGA) chip module peace face grid array (LGA) chip module and circuit board and can guarantee to be electrically connected reliable and stable.
[description of drawings]
Fig. 1 is the stereogram of the utility model electric connector;
Fig. 2 is the stereogram of the insulating body of electric connector shown in Figure 1;
Fig. 3 is the stereogram of the conducting terminal of electric connector shown in Figure 1;
Fig. 4 is the end view of conducting terminal shown in Figure 3;
Fig. 5 is the schematic diagram of the conducting terminal of the utility model electric connector when being connected with planar lattice array (LGA) chip module;
Fig. 6 is the schematic diagram of the conducting terminal of the utility model electric connector when being connected with ball-shaped grid array (BGA) chip module;
Fig. 7 is that electric connector shown in Figure 1 is along the cutaway view of A-A direction.
[embodiment]
See also Fig. 1 to shown in Figure 7, the utility model electric connector 100 is in order to be electrically connected chip module 4,5 to circuit board (not shown), and described electric connector comprises insulating body 1, some conducting terminal 2 and some tin balls 3 that is immobilizated in the insulating body 1.
Please consult Fig. 3 and shown in Figure 4 by emphasis, the connecting portion 25 that conducting terminal 2 comprises holding parts 21, extend from holding parts 21 bottoms one side edge bending, the weld part 23 that links to each other with holding parts 21 by connecting portion 25, from the elastic arm 20 of weld part 23 upper ends bending extension.Connecting portion 25 is to be bent to form through 90 degree from holding parts 21 sides, and the one side links to each other with the lower limb of a side of holding parts 21, and another relative side links to each other with a side of weld part 23.Elastic arm 20 and weld part 23 are perpendicular to holding parts 21.Elastic arm 20 comprises strain section 22, be connected with strain section 22 and to the tin ball contact site 240 of lower recess and from the tin ball contact site 240 upwardly extending conducting strip contact site 241 that tilts.Strain section 22 comprise extend obliquely the first curved portions 221 of then being bent to form downwards from weld part 23 upper ends, from the first curved portions 221 oblique downward-extensions the second curved portions 222 of forming of back bending and extend the 3rd curved portions 223 that then extends to form again downwards obliquely and towards the first curved portions 221 from the second curved portions 222 upwards then.Tin ball contact site 240 is then upwards to bend from the 3rd curved portions 223 oblique downward-extensions to extend to form, and conducting strip contact site 241 tilts to extend upward setting from tin ball contact site 240.Tin ball contact site 240 is provided with the pit 2401 of arc, in order to contact with the ball 51 that contacts of ball-shaped grid array (BGA) chip module 5, the surface of this pit 2401 is the oxide layer of the contact ball 51 of matsurface scraped ball-shaped grid array (BGA) chip module 5, guarantees high-quality electric connection.When conducting terminal was in free state, the height of holding parts 21 was higher than the height of tin ball contact site 240 and is lower than the height of conducting strip contact site 241 and the projection of tin ball contact site 240 on vertical holding parts 21 directions falls within on the holding parts 21.
Please consult Fig. 1, Fig. 2 and shown in Figure 7 by emphasis, insulating body 1 has upper surface 10, the lower surface 12 relative with upper surface 10 and some terminal containing slots 11 that runs through upper surface 10 and lower surface 12, and conducting terminal 2 is immobilizated in the terminal containing slot 11.Terminal containing slot 11 has relative two side, wherein a sidewall is provided with the holding slot 113 of the holding parts 21 of accommodating conducting terminal 2, another sidewall relative with it is provided with columned tin ball accepting groove 112, and this tin ball accepting groove 112 can be in order to accommodate the contact ball 51 of ball-shaped grid array chip module 5 when electric connector 100 connects ball-shaped grid array chip module 5.Insulating body 1 also is provided with some supporting lugs 13, and supporting lug 13 is between the two side of terminal containing slot 11 and the two side of splicing ear accepting groove 11.On conducting terminal 2 bearing of trends, supporting lug 13 is overlapped with the holding slot 113 on terminal containing slot 11 sidewalls, and supporting lug 13 is immobilizated in the holding parts 21 of conducting terminal 2 in the holding slot 113 jointly with a sidewall of terminal containing slot 11.Supporting lug 13 is below the upper surface 10 of insulating body 1 and between the terminals of adjacent of conducting terminal 2 bearing of trends, behind conducting terminal 2 pressurizeds, supporting lug 13 can be used for supporting the tin ball contact site 240 of conducting terminal 2, with prevent conducting terminal 2 forward excessive deformation extend and to cause the terminals of adjacent short circuit.Electric connector 100 corresponding conducting terminals 2 also comprise some tin balls 3, and the weld part 23 of conducting terminal 2 cooperates with insulating body 1, with tin ball 3 mechanical grip in terminal containing slot 11.
During assembling, conducting terminal 2 is assembled in the terminal containing slot 11 of insulating body 1 at first from top to bottom, this moment, the holding parts 21 of conducting terminal 2 was contained in the holding slot 113 of terminal containing slot 11, holding parts 21 extends to the upper surface 10 of insulating body 1, the tin ball contact site 240 of conducting terminal 2 is contained in the terminal containing slot 11 and is positioned at the top of supporting lug 13, and conducting strip contact site 241 exceeds the upper surface 10 of insulating body 1; Then with tin ball 3 in body 1 below of insulating is packed terminal containing slot 11 into, and cooperated jointly to support with insulating body 1 by the weld part 23 of conducting terminal 2 and be fixed in the terminal containing slot 11.
The conducting terminal 2 of the utility model electric connector 100, its elastic arm 20 is respectively equipped with to the tin ball contact site 240 of lower recess and the conducting strip contact site 241 that is tilted to extension from tin ball contact site 240, tin ball contact site 240 is in order to be connected with ball-shaped grid array (BGA) chip module 5, and conducting strip contact site 241 is in order to be connected with planar lattice array (LGA) chip module 4.The structure of the conducting terminal 2 of the utility model electric connector 100 can be satisfied with respectively the electric connection of ball-shaped grid array (BGA) chip module 5 and planar lattice array (LGA) chip module 4 and circuit board and can guarantee to be electrically connected reliable and stable, save cost.
Should be understood that, the above only is 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, be used for being electrically connected the chip module to circuit board, described electric connector comprises insulating body and some conducting terminals that is immobilizated in the insulating body, described insulating body has relative upper and lower surface and runs through some terminal containing slots on upper and lower surface, described conducting terminal comprises holding parts, the weld part that links to each other with holding parts and elastic arm, it is characterized in that: described elastic arm comprise strain section, be connected with strain section to the tin ball contact site of lower recess and from the tin ball contact site upwardly extending conducting strip contact site that tilts.
2. electric connector as claimed in claim 1 is characterized in that: when described conducting terminal was in free state, described tin ball contact site was in the below of insulating body upper surface, and the conducting strip contact site is in insulating body upper surface top.
3. electric connector as claimed in claim 1, it is characterized in that: be provided with supporting lug in the terminal containing slot of described insulating body, behind the conducting terminal pressurized, supporting lug can be used for supporting the tin ball contact site of conducting terminal.
4. electric connector as claimed in claim 1, it is characterized in that: described conducting terminal comprises a junction, described weld part is connected with holding parts by connecting portion.
5. electric connector as claimed in claim 4, it is characterized in that: described elastic arm and described weld part are perpendicular to described holding parts.
6. electric connector as claimed in claim 1 is characterized in that: described strain section comprise extend obliquely the first curved portions of then being bent to form downwards from the weld part upper end, from the oblique downward-extension of the first curved portions the second curved portions of forming of back bending and extend the 3rd curved portions that then extends to form again obliquely and towards the first curved portions downwards from the second curved portions upwards then.
7. electric connector as claimed in claim 1, it is characterized in that: described holding parts extends to the upper surface of insulating body.
8. electric connector as claimed in claim 3 is characterized in that: the common holding slot of accommodating the conducting terminal holding parts that forms of a sidewall of described supporting lug and terminal containing slot.
9. electric connector as claimed in claim 1, it is characterized in that: described tin ball contact site also is provided with the pit of arc.
10. electric connector as claimed in claim 1 is characterized in that: the projection of described tin ball contact site on vertical holding parts direction falls within on the holding parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162110 CN202695786U (en) | 2012-04-17 | 2012-04-17 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162110 CN202695786U (en) | 2012-04-17 | 2012-04-17 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695786U true CN202695786U (en) | 2013-01-23 |
Family
ID=47551350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162110 Expired - Fee Related CN202695786U (en) | 2012-04-17 | 2012-04-17 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025631A (en) * | 2016-06-24 | 2016-10-12 | 中航光电科技股份有限公司 | Contact, electric connector and contact piece assembly |
-
2012
- 2012-04-17 CN CN 201220162110 patent/CN202695786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025631A (en) * | 2016-06-24 | 2016-10-12 | 中航光电科技股份有限公司 | Contact, electric connector and contact piece assembly |
| CN106025631B (en) * | 2016-06-24 | 2019-03-01 | 中航光电科技股份有限公司 | A kind of contact and electric connector and contact assemblies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170417 |