CN201266710Y

CN201266710Y - Electric connector

Info

Publication number: CN201266710Y
Application number: CNU2008200414666U
Authority: CN
Inventors: 陈铭佑; 萧世伟; 陈克豪
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: 2008-08-27
Filing date: 2008-08-27
Publication date: 2009-07-01
Anticipated expiration: 2018-08-27

Abstract

The utility model discloses an electrical connector, comprising an insulating body, which is provided with a plurality of terminal receiving grooves; a plurality of conductive terminals are correspondingly accommodated in the plurality of terminal receiving grooves, and the conductive terminals are provided with a first base, a first elastic arm, and a second elastic arm and the second base, the first base is provided with a holding part to hold the conductive terminal in the terminal receiving groove; the first elastic arm extends upward from the first base, and its free end is provided with a contact part; the second elastic The arm is attached to the first elastic arm below; the second base is connected with the second elastic arm and attached to the first base. An elastic arm is attached below the elastic arm of the conductive terminal of the electrical connector of the utility model, so the conductive terminal can maintain sufficient elasticity and toughness even if the external volume is reduced, thereby adapting to the development trend of miniaturization of the electrical connector.

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 chip module and circuit board especially.

[background technology]

LGA type electric connector is widely used in electrically connecting CPU to circuit board.The characteristics of this type electric connector are that conducting terminal generally has a relatively long arm, to contact with conductive spacer that CPU goes up corresponding setting.When CPU was assembled to electric connector, CPU was stressed towards the electric connector motion, produces behind the terminal arm stress deformation and acts on the reaction force that CPU goes up conductive spacer, and this reaction force helps the contact site on the terminal arm closely to contact with the conductive spacer of CPU.Correlation technique can be with reference to United States Patent (USP) the 7th, 044, No. 746.

Fig. 1 to Fig. 3 has showed a kind of LGA type electric connector 8 relevant with the utility model.This electric connector 8 comprises insulating body 80 and is contained in plurality of conductive terminals 82 in the insulating body 80.Be provided with the plurality of terminals accepting groove 800 of corresponding conducting terminal 82 numbers in the insulating body 80, contain a conducting terminal 82 in each terminal containing slot 800 respectively, this conducting terminal 82 respectively upward, the below is provided with an elastic arm 821.

Yet above-mentioned LGA type electric connector 8 can not adapt to electric connector miniaturization development trend well.When electric connector when miniaturization develops, usually the terminal pitch of the plurality of conductive terminals in the electric connector is also more and more littler.Desire to achieve the above object, a kind of way is not simply improved terminal structure, only according to size scaling conducting terminal 82.

But only the convergent-divergent that conducting terminal 82 is carried out on the size will cause a series of problems.On the one hand, terminal arm deformability descends, and then causes the terminal arm can not produce enough active forces on the conductive spacer of CPU, and if CPU is pressed down, then might make terminal arm excessive deformation cause damaging; On the other hand, if conducting terminal 82 by scaled, also will cause the impedance of the electrical path of these conducting terminal 82 correspondences to raise, more than the problem of two aspects all will have a strong impact on electric connection performance between electric connector and the CPU.

Given this, necessaryly provide a kind of improved electric connector, to overcome the defective of prior art.

[utility model content]

The technical problems to be solved in the utility model provides a kind of electric connector, its conducting terminal good toughness, and can adapt to electric connector miniaturization development trend.

For solving the problems of the technologies described above, the utility model provides a kind of electric connector, comprise the insulating body and the corresponding plurality of conductive terminals that is contained in the terminal containing slot that are provided with the plurality of terminals accepting groove, conducting terminal is provided with first base portion, first elastic arm, first elastic arm and one second base portion, this first base portion is provided with holding parts, so that terminal is immobilizated in the terminal containing slot; First elastic arm extends upward from first base portion, and its free end is provided with contact site; Second elastic arm is attached on first elastic arm in the below; Second base portion links to each other with second elastic arm and is attached at this first base portion.

Compare with correlation technique, electric connector of the present utility model has the following advantages: conducting terminal elastic arm below is pasted with elastic arm in addition, even if the event conducting terminal dwindles the external form volume and still can keep enough elasticity and toughness, and then can adapt to electric connector miniaturization development trend.

[description of drawings]

Fig. 1 is the stereogram of prior art electric connector, and wherein the subregion of insulating body demonstrates its situation of accommodating conducting terminal.

Fig. 2 is the enlarged drawing of X part among Fig. 1.

Fig. 3 is the stereogram of the conducting terminal of prior art electric connector.

Fig. 4 is the stereogram of the utility model electric connector, and wherein the subregion of insulating body demonstrates its situation of accommodating conducting terminal.

Fig. 5 is the enlarged drawing of Y part among Fig. 4.

Fig. 6, Fig. 7 are respectively stereogram, the exploded views of the conducting terminal of the utility model electric connector.

Fig. 8 is the partial view of the insulating body of the utility model electric connector, wherein still unassembled this insulating body of conducting terminal.

Fig. 9 is the enlarged drawing of Z part among Fig. 8.

[embodiment]

See also Fig. 4 to Fig. 9, the utility model discloses a kind of electric connector 1, can electrically connect two electronic components that dock with it (not icon).This electric connector 1 comprises the insulating body 10 that is provided with plurality of terminals accepting groove 100, and some correspondences are contained in the conducting terminal 12 of plurality of terminals accepting groove 100.

Conducting terminal 12 is provided with first base portion 120, and this first base portion 120 is provided with some first holding parts 1200, so that conducting terminal 12 is fixed to terminal containing slot 100.

It is vertical tabular that first base portion 120 roughly is, its top has extended upward first elastic arm 1202, its bottom is extended with the 3rd elastic arm 1204 downwards, this the first, the 3rd elastic arm the 1202, the 1204th is symmetrical arranged with respect to first base portion 120, and aforementioned first holding parts 1200 is to be symmetricly set in first base portion, 120 both sides.The free terminal of first elastic arm 1202, the 3rd elastic arm 1204 is respectively equipped with first contact site 1206, second contact site 1208 of an arc.

Conducting terminal 12 also comprises second base portion 122, and this second base portion 122 is provided with some second holding parts 1220.The top of second base portion 122 extends upward out second elastic arm 1222, lower end symmetry one the 4th elastic arm 1224 that extends out.Aforementioned second holding parts 1220 is to be symmetricly set in second base portion, 122 both sides.In addition, the shape and structure of first base portion 120, second base portion 122 can be identical.

Be folded with the 3rd base portion 124 between first base portion 120, second base portion 122, and the upper and lower end of the 3rd base portion 124 extends one the 5th elastic arm 1242, the 6th elastic arm 1244 respectively, be sandwiched in respectively between first elastic arm 1202, second elastic arm 1222, and between the 3rd elastic arm 1204, the 4th elastic arm 1224.

The 3rd base portion 124 is not provided with holding parts, and it is fixed to terminal containing slot 100 after being sandwiched in the centre together, so need not holding parts.And the structure of the 5th elastic arm 1242 and second elastic arm 1222 is identical, and the 6th elastic arm 1244 can be identical with the 4th elastic arm 1224; Aforesaid identical situation can occur simultaneously, and an appearance can also only be arranged.

Conducting terminal 12 of the present utility model in fact need not the 3rd base portion 124 and the 5th elastic arm 1242, the 6th elastic arm 1244 promptly can use well.When aforementioned conducting terminal 12 uses, can be only first base portion 120, second base portion, 122, the first elastic arms 1202, second elastic arm 1222, and the 3rd elastic arm 1204, the 4th elastic arm 1224 fit in respectively together, be filled to terminal containing slot 100 then.Wherein, two elastic arm ends that second base portion 122 is extended out do not need to be provided with contact site, and its free terminal does not also surpass the end of its elastic arm thereon of fitting separately.Second elastic arm 1222 is to be attached on first elastic arm 1202 in the below of first elastic arm 1202, and free-ended first contact site 1206 of described first elastic arm 1202 is towards protruding away from second elastic arm, 1222 directions.

Plurality of terminals accepting groove 100 on the insulating body 10 of the utility model electric connector 1 can be contained in wherein for above-mentioned conducting terminal 12.Please refer to Fig. 9, the wider portion that this terminal containing slot 100 is provided with a narrower part and is connected with this narrower part is with the elastic arm of accommodating first base portion 120, second base portion 122 respectively and extending out from the above two.First,

second holding parts

1200,1220 of first base portion 120, second base portion, 122 both sides respectively with the two relative madial wall interference engagement of the narrower part of this terminal containing slot 100, thereby whole conducting terminal 12 can be fixed in the terminal containing slot 100, thus need not the 3rd base portion 124 and the 5th elastic arm 1242, the 6th elastic arm 1244 promptly can use well.

Because can (first elastic arm, 1202 belows that electrically contact as chip module/CPU) also be provided with second elastic arm 1222, even if conducting terminal 12 reduced volumes still can keep enough elasticity, toughness with the butt joint electronic building brick.

Aforementionedly describe, conducting terminal 12 in fact need not the 3rd base portion 124 and the 5th elastic arm 1242, the 6th elastic arm 1244 promptly can use well, adopt these structures then to form another kind of alternative execution mode.The elastic arm that contacts with chip module of conducting terminal 12 can be combined by a plurality of arms; Equally, can also be to combine for the elastic arm that contacts with another butt joint electronic building brick (as PCB) by a plurality of arms, even if make conducting terminal 12 reduced volumes, still can keep enough elasticity, toughness.

It may be noted that in the execution mode of the present utility model, conducting terminal 12 is actually the kenel of a kind of LGA/LGA, right insider knows that all the conducting terminal that connects CPU and circuit board can also be the LGA/BGA kenel at least.The conducting terminal of LGA/BGA kenel only has upwardly extending elastic arm to contact with CPU, is to connect by the tin ball bonding with the circuit board way of contact.Technological thought of the present utility model is applied to LGA/BGA kenel conducting terminal, can occur: itself and the circuit board way of contact are still by the tin ball bonding and connect, right elastic arm with the CPU contact promptly is changed to the utility model conducting terminal 12 identical with the resilient arm structure of CPU contact, is promptly combined by multilayer arm superposition.

Claims

1. An electrical connector, capable of electrically connecting two electronic components docked with it, comprising an insulating body provided with a plurality of terminal receiving grooves, and a plurality of conductive terminals correspondingly accommodated in the plurality of terminal receiving grooves, characterized in that: the conductive terminals It includes a first base with a first holding portion that can hold the terminal in the terminal receiving groove, a first elastic arm that extends upward from the first base and has a contact portion at its free end, and is attached to the first base below. The second elastic arm on the elastic arm and the second base connected with the second elastic arm and attached to the first base.

2 . The electrical connector as claimed in claim 1 , wherein a second holding portion is provided on the second base portion to cooperate with the terminal receiving groove. 3 .

3. The electrical connector according to claim 2, wherein the free end of the second elastic arm does not exceed the free end of the first elastic arm.

4. The electrical connector as claimed in claim 3, wherein the free end of the first elastic arm is provided with an arc-shaped contact portion, and the arc-shaped contact portion protrudes away from the second elastic arm.

5. The electrical connector as claimed in claim 2, wherein the first elastic arm extends upward from the top of the first base.

6 . The electrical connector as claimed in claim 5 , wherein a third elastic arm extends downward from the bottom end of the first base, and a contact portion is also provided at a free end of the third elastic arm.

7. The electrical connector according to claim 6, wherein the first and third elastic arms are arranged symmetrically with respect to the first base.

8. The electrical connector according to claim 6 or 7, wherein a fourth elastic arm extends from the second base, and the fourth elastic arm is attached to the third elastic arm.

9. The electrical connector as claimed in claim 8, wherein the free end of the fourth elastic arm does not exceed the free end of the third elastic arm.

10. The electrical connector according to claim 9, wherein a third base is interposed between the first and second bases, and a fifth elastic arm, a first elastic arm, and a fifth elastic arm respectively extend from the upper and lower ends of the third base. Six elastic arms are sandwiched between the first and second elastic arms and between the third and fourth elastic arms respectively.