CN201230103Y

CN201230103Y - Electric connector

Info

Publication number: CN201230103Y
Application number: CNU2008200383475U
Authority: CN
Inventors: 廖芳竹
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-06-18
Filing date: 2008-06-18
Publication date: 2009-04-29
Anticipated expiration: 2018-06-18

Abstract

The utility model discloses an electrical connector, which is used for electrically connecting a chip module to a printed circuit board. It includes an insulating body and a plurality of conductive terminals accommodated in the insulating body. The insulating body is provided with a receiving surface opposite to the receiving surface. The mounting surface of the mounting surface and the terminal grooves passing through the receiving surface and the mounting surface, the conductive terminals are accommodated in the terminal grooves, the conductive terminals are extended with elastic arms and protrude from the receiving surface of the insulating body, wherein the terminal grooves are distributed in approximately equal In the first area and the second area, the first area and the second area are respectively provided with a first positioning hole and a second positioning hole at diagonal positions that can cooperate with the chip module, and the conductive terminals of the two areas are arranged opposite to each other. The elastic arms of the conductive terminals in different areas extend in opposite directions, while the elastic arms of the terminals in the same area extend in the same direction and face the first positioning hole and the second positioning hole respectively.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers to a kind of electric connector that electrically connects the chip module to printed circuit board (PCB) especially.

[background technology]

A kind of grid array (Land Grid Array, LGA) electric connector, be used to electrically connect the chip module to printed circuit board (PCB), it comprises insulating body and conducting terminal, insulating body is provided with diapire and extends the sidewall of setting from diapire, diapire and sidewall are formed a receiving space and are used to accommodate the chip module, conducting terminal is provided with a holding parts that is mounted to insulating body, extend elastic portion and the weld part that is provided with from holding parts, the elastic portion end is a contact site, after conducting terminal is installed, its elastic portion is exposed to diapire and is contained in the receiving space, weld part is used to be soldered to printed circuit board (PCB), after the assembling of chip module, it contacts and pushes the conducting terminal elastic portion with the conducting terminal contact site, by the electric connection between conducting terminal realization chip module and the printed circuit board (PCB), this type of conducting terminal elastic portion strain makes chip module and conducting terminal realize the better effect that contacts.

Yet, because this type electric connector, the elastic portion of its conducting terminal is assembled facing one direction, during the assembling of chip module, the extruding conducting terminal can correspondingly be subjected to the elastic resistance that elastic portion produces, because the quantity of conducting terminal is increasing day by day, so conducting terminal increases the elastic resistance of chip module, cause chip module and the phenomenon that occurs contacting poor effect individually between the conducting terminals, influence the contact quality of whole connector.

Chinese patent discloses another kind of electric connector CN2779652Y number, it comprises insulating body and is contained in the interior plurality of conductive terminals of insulating body, insulating body is provided with some terminal containing slots that are arranged, conducting terminal is contained in the terminal containing slot, conducting terminal extends the contact site that is provided with elastic arm and is positioned at the elastic arm end, wherein, described some terminal containing slots that is arranged are divided at least two zones, the conducting terminal in these at least two zones is to arrange relatively, the bearing of trend of elastic arm is opposite, and the bearing of trend of the same area conducting terminal elastic arm is identical.This type electric connector is arranged in opposite directions by conducting terminal, behind the conducting terminal pressurized, all conducting terminals are reduced the horizontal frictional force of chip module, or finally can reach balance, thereby can alleviate the chip module that causes because of the horizontal frictional force of conducting terminal moves horizontally, yet this type electric connector exists chip module assembling inconvenient, and insulating body is mounted to defective such as circuit board inconvenience.

So necessary disappearance to existing electric connector is done necessity of further improvement.

[utility model content]

The purpose of this utility model provides a kind of electric connector, and it can whole reduce the horizontal frictional force of conducting terminal to the chip module, moves thereby alleviate the chip module level, and can make the assembling of chip module more convenient.

To achieve these goals, the utility model adopts following technological means: the utility model discloses a kind of electric connector, be used to electrically connect the chip module to printed circuit board (PCB), it comprises insulating body and is contained in the interior plurality of conductive terminals of insulating body, insulating body is provided with continuing surface, the installed surface relative and run through continuing surface and the terminal groove of installed surface with continuing surface, conducting terminal is contained in the terminal groove, conducting terminal extends the continuing surface that is provided with elastic arm and convexedly stretches in insulating body, wherein, described terminal groove is distributed in first area and second area about equally, the first area, second area is respectively equipped with first location hole that is in diagonal position that can close with the chip dies assembly, second location hole, the conducting terminal in these two zones is arranged in opposite directions, the elastic arm bearing of trend of zones of different conducting terminal is opposite, and the terminal elastic arm bearing of trend of the same area is identical and respectively towards first location hole and second location hole.

Compared with prior art, the utlity model has following advantage: the conducting terminal in two zones is arranged in opposite directions, the terminal elastic arm bearing of trend of the same area is identical and respectively towards first location hole and second location hole, therefore can reduce all conducting terminals to chip module ground frictional force, alleviate chip module moving with respect to insulating body; First location hole that can cooperate with chip module, second location hole can make the installation of chip module more convenient, and the conducting terminal elastic arm does not produce interference with first location hole, second location hole.

[description of drawings]

Fig. 1 is conducting terminal and terminal accommodating stereogram in insulating body of the utility model electric connector.

Fig. 2 is that the conducting terminal of the utility model electric connector is contained in the vertical view in the insulating body.

Fig. 3 is that connector terminals shown in Figure 1 is contained in the insulating body, and between chip module and circuit board, and the partial sectional view of chip module when not depressing.

Fig. 4 is that connector terminals shown in Figure 1 is contained in the insulating body, and between chip module and circuit board, and the partial sectional view of chip module when depressing.

Fig. 5 is the stereogram of the conducting terminal of the utility model electrical connection.

[embodiment]

As Fig. 1 to Fig. 5, the utility model discloses a kind of electric connector 100, in order to accept chip module 200 and to be electrically connected to circuit board 300.This electric connector comprises insulating body 10 and is contained in plurality of conductive terminals 20 in the insulating body 10.

The roughly rectangular platy structure of insulating body 10, this insulating body is provided with continuing surface 101, the installed surface 102 relative and run through the terminal groove 103 that continuing surface 101 and installed surface 102 are arranged with continuing surface 101, conducting terminal 20 is contained in the terminal groove 103, wherein, the center line L1 that described insulating body 10 is shown insulating body 10 greatly is divided into different first area 1011,1,012 two zones of second area, described first area 1011, second area 1012 is all roughly rectangular and be respectively equipped with can be that cooperate with chip module 200 and run through first location hole 104 of insulating body 10, second location hole, 105, the first location holes 104 and second location hole 105 are in the relative corner of insulating body 10 respectively.

Elastic arm 202 that conducting terminal 20 comprises fixing base portion 201, bending is extended on base portion 201 1 side direction and the contact arm 203 that extends downwards from base portion 201; Base portion 201 can firmly be fastened in the terminal groove 103, thereby with conducting terminal 20 stable being immobilizated in the terminal groove 103; Elastic arm 202 ends are the bifurcated setting, are provided with the contact site 2021 that keeps at a certain distance away; Contact arm 203 is its end of arm shape and is the bifurcated setting, is provided with the docking section 2031 that keeps at a certain distance away.

As shown in Figures 1 and 2, when conducting terminal 20 is contained in insulating body 10

terminal grooves

103,1012 interior conducting terminals 20 are to arrange in opposite directions in conducting terminal 20 in the first area 1011 and the second area, it is identical and towards first location hole 104 (second location hole 105) to be contained in the bearing of trend of elastic arm 202 of conducting terminal 20 of terminal groove 103 of the same area such as first area 1011 (second area 1012), and elastic arm 202 does not produce with first location hole 104 and second location hole 105 interferes, and the elastic arm 202 of the conducting terminal 20 of the elastic arm 202 of the conducting terminal 20 of first area 1011 and second area is to extend in the opposite direction each other, in the present embodiment, the bearing of trend of the elastic arm 202 of all conducting terminals 20 is parallel to each other and be roughly parallel to the center line L1 of insulating body 10.

See also Fig. 3 and Fig. 4, be contained in insulating body 10 for arranging conducting terminals 20 with second area 1012 interior adjacent two in the first area 1011, and the partial sectional view of insulating body 10 between chip module 200 and circuit board 300.When chip module 200 does not press down (Fig. 3 with reference to), the elastic arm 202 of conducting terminal 20 protrudes out the continuing surface 101 of insulating body 10, and dock with circuit board 300 docking section 2031 of contact arm 203, at this moment the equal stress deformation not of elastic arm 202 and contact arm 203; When chip module 200 presses down (as Fig. 4), the elastic arm 202 of the conducting terminal 20 of zones of different is with compressive deformation and horizontal frictional force F1, the F2 opposite to chip module 200 directions, the effect that generation is cancelled each other, the horizontal frictional force of 20 pairs of chip modules 200 of all conducting terminals has reduced, even finally can reach balance, thereby can alleviate chip module 200 the moving horizontally of causing because of frictional force with respect to insulating body 10.

First location hole 104 that runs through insulating body 10 and second location hole 105 also can cooperate when making insulating body 10 be mounted to circuit board 300 more convenient with circuit board 300.

Should be understood that, the above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, 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

1. electric connector, be used to electrically connect the chip module to printed circuit board (PCB), it comprises insulating body and is contained in the interior plurality of conductive terminals of insulating body, insulating body is provided with continuing surface, the installed surface relative and run through continuing surface and the terminal groove of installed surface with continuing surface, conducting terminal is contained in the terminal groove, conducting terminal extends the continuing surface that is provided with elastic arm and convexedly stretches in insulating body, it is characterized in that: described terminal groove is distributed in first area and second area, the first area, second area is respectively equipped with first location hole that is in diagonal position that can close with the chip dies assembly, second location hole, the conducting terminal in these two zones is arranged in opposite directions, the elastic arm bearing of trend of zones of different conducting terminal is opposite, and the terminal elastic arm bearing of trend of the same area is identical and respectively towards first location hole and second location hole.

2. electric connector as claimed in claim 1 is characterized in that: the center devision that described insulating body is shown insulating body greatly is different two zones of first area, second area.

3. electric connector as claimed in claim 2 is characterized in that: described first area, second area are rectangle and two zones about equally.

4. electric connector as claimed in claim 2 is characterized in that: the bearing of trend of the elastic arm of all conducting terminals is parallel to each other and be roughly parallel to the center line of insulating body.

5. electric connector as claimed in claim 1 is characterized in that: described first location hole can cooperate with circuit board with second location hole.

6. electric connector as claimed in claim 2 is characterized in that: elastic arm that described conducting terminal comprises base portion, bending is extended on base portion one side direction and the contact arm that extends downwards from base portion.

7. electric connector as claimed in claim 6 is characterized in that: described elastic arm end is the bifurcated setting, is provided with the contact site that keeps at a certain distance away, and described contact arm end is the bifurcated setting, is provided with the docking section that keeps at a certain distance away.