CN201122775Y

CN201122775Y - Electric connector

Info

Publication number: CN201122775Y
Application number: CNU2007200562199U
Authority: CN
Inventors: 朱德祥
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2007-08-28
Filing date: 2007-08-28
Publication date: 2008-09-24
Anticipated expiration: 2017-08-28

Abstract

The utility model relates to an electrical connector, which comprises an insulating main body. The insulating main body is provided with at least an containing hole, and at least an containing concave part is arranged in the containing hole of the insulating main body; at least a conducting terminal is correspondingly installed in the containing hole, the conducting terminal is at least provided with a base part, an elastic arm and a welding part; wherein, the elastic arm is connected with the base part through one side of the base part, even one end of the elastic arm is contained at the containing concave part and the other end of the elastic arm extends out from the containing hole, and is exposed outside the insulating main body. Compared with the prior art, the electrical connector of the utility model is positioned in the correspondingly containing concave part of the insulating main body through one end of the elastic arm, thereby to ensure that during the process that the load is exerted and released by the elastic arm, the conducting terminal part is propped against the inner surface of the containing concave part, thereby, the transmission of the stress to the welding part is reduced, and the tin cracking phenomenon is avoided.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers in particular to the electric connector that electrically connects circuit board and electronic building brick.

[background technology]

Occurred the chip module of planar lattice array (LGA) type now at some electronic product (as computer), the guiding access of this chip module is a washer-shaped, and the electric connector that is attached thereto is provided with the terminal that contacts with the conducting end compression.The electric connector of prior art, please refer to illustrated in figures 1 and 2, it comprises insulating body 100 and conducting terminal 200, insulating body 100 is provided with the terminal containing slot 300 of accommodating conducting terminal, conducting terminal 200 is to be made of one piece, comprise and be immobilizated in intrinsic holding parts 400, holding parts 400 extension downwards is provided with the weld part 500 that welds mutually with circuit board, extend upward and be provided with the contact site 600 that compresses contact with chip module mutually, though this conducting terminal also can be realized the electric connection of chip module and circuit board, because when chip module compressed mutually with contact site, stress can be to the leg place, thereby cause the loosening of leg, cause destruction pad.

Therefore, be necessary to design a kind of novel electric connector, to overcome above-mentioned defective.

[utility model content]

The purpose of this utility model is to provide a kind of novel electric connector, its conducting terminal simple shape, and can disperse of the transmission of the stress of contact site to the welding position.

For achieving the above object, the utility model electric connector comprises an insulating body, offers at least one accepting hole in described insulating body, and this insulating body is offered at least one recess of accommodating in this accepting hole; At least one conducting terminal correspondence is installed in this accepting hole, and this conducting terminal has a base portion, an elastic arm and a weld part at least; Wherein, this base portion is arranged in the described accepting hole; This elastic arm is by this base portion one Side, and this elastic arm one end be contained in described accommodate recess and this elastic arm in addition end extend from this accepting hole, be revealed in outside this insulating body; This weld part is extended by this base portion one end.

Compared with prior art, the utility model electric connector, being positioned insulating body by elastic arm one end accommodates in the recess accordingly, thereby make conducting terminal apply and discharge in the process of load at elastic arm, this position with accommodate the recess contacted inner surfaces and touch, thereby reduce the transmission of stress, thereby prevent solder crack to weld part.

[description of drawings]

Fig. 1 is the stereogram of existing conducting terminal;

Fig. 2 is the partial sectional view of existing conducting terminal and insulating body assembling;

Fig. 3 is the stereogram of the utility model electric connector;

Fig. 4 is the stereogram of the utility model electric connector conducting terminal;

Fig. 5 is the front view of the utility model electric connector conducting terminal;

Fig. 6 is the end view of the utility model electric connector conducting terminal;

Fig. 7 is the partial schematic sectional view of the utility model electric connector conducting terminal and insulating body assembling;

Fig. 8 is the cutaway view of Fig. 7 along the A-A line.

[embodiment]

See also Fig. 3 to Fig. 7, the utility model electric connector comprises insulating body 1 and the conducting terminal 2, the following iron-clad 3 that is positioned at insulating body 1 below that are provided with terminal accommodation holes 113, is positioned at upper iron shell 4 and rocking bar 5 that iron-clad 3 two ends down are articulated with following iron-clad 3 respectively.

Be provided with accepting hole 6 in the described insulating body 1, wherein insulating body 1 is provided with projection 11 and offers and accommodates recess 61 in accepting hole 6.(as Fig. 7)

Described conducting terminal 2 is provided with base portion 22.Elastic arm 25 passes through a side of this base portion 22, and links to each other with base portion 22.This elastic arm 25 comprises the contact arm 252 that extends upward, to lower edge contact arm 252 link to each other with base portion 22 end the extended fixed part 251 of line stretcher.And base portion 22 extends upward the strip connecting portion 21 that is provided with projection 211, extends connecting portion 23 downwards, and this connecting portion 23 further extends the weld part 24 that is provided with overhead kick 241 downwards.(as Fig. 4)

Wherein, the base portion 22 of conducting terminal is arranged in the described accepting hole 6, and contact arm 25 extends from this accepting hole 6, is revealed in outside this insulating body 1.(as Fig. 7 and Fig. 8) contact arm 252 is provided with contact site 2522 and by base portion 22 extended transition parts 2521.Described contact site 2522 ends are provided with the contact zone 25221 that can contact with chip module, and described transition part 2521 is provided with arc-shaped bend portion 25211.(as Fig. 4)

Wherein, weld part 24 1 sides are provided with overhead kick 241, can be interlocked with the projection 11 in the accepting hole 6, in case not-go-end withdraws from.(as Fig. 7) bend 25211 is curved with connecting portion 23, to increase the elasticity of terminal.

Wherein, fixed part 251 is in the same plane with base portion 22, and fixed part 251 is contained in accommodates in the recess 61.When the pressure that is subjected to electronic building brick when contact arm 252 was touched, fixed part 251 at least one positions were with to accommodate recess 61 inner inconsistent, and the projection 211 of strip connecting portion 21 does not contact with insulating body 1.(as Fig. 7) so, fixed part 251 can absorb stress effectively.Because face 2511, the side 2512 of fixed part 251, the end 2513 can with accommodate recess 61 contacted inner surfaces, so fixed part 251 can absorb the stress from all directions.

So this kind structural design is born and discharge in the process of load at termination contact arm 252, its fixed part 251 can reduce the transmission of stress to weld part, thereby prevent solder crack by being positioned to accommodate in the recess 61.

Claims

1. an electric connector is characterized in that, comprising:

One insulating body offers at least one accepting hole in described insulating body, and this insulating body is offered at least one recess of accommodating in this accepting hole;

At least one conducting terminal correspondence is installed in this accepting hole, and this conducting terminal has a base portion, an elastic arm and a weld part at least; Wherein, this base portion is arranged in the described accepting hole; This elastic arm is by this base portion one side, and links to each other with base portion, and this elastic arm one end is contained in the described recess of accommodating, and this elastic arm is held in addition and extended from this accepting hole, is revealed in outside this insulating body; This weld part is extended by this base portion one end.

2. electric connector as claimed in claim 1 is characterized in that: it is a fixed part that described elastic arm is contained in an end of accommodating recess, and when elastic arm was stressed, at least one position of this fixed part was with to accommodate recess inconsistent.

3. electric connector as claimed in claim 1 is characterized in that: described fixed part and base portion are on same plane.

4. electric connector as claimed in claim 1 is characterized in that: described elastic arm is provided with the contact site that docks the electronic building brick contact and is connected base portion and the transition part of contact site.

5. electric connector as claimed in claim 4 is characterized in that: described transition part comprises bend.

6. electric connector as claimed in claim 1 is characterized in that: described terminal base portion extends an arc connecting portion downwards, and this connecting portion extends weld part downwards.

7. electric connector as claimed in claim 6 is characterized in that: described weld part side is provided with overhead kick, and the insulating body in the described terminal accommodation holes is provided with the projection that is interlocked with described weld part overhead kick.

8. an electric connector is characterized in that, comprising:

At least one conducting terminal correspondence is installed in this accepting hole, and this conducting terminal has a base portion, a contact arm, a fixed part and a weld part at least; Wherein, this base portion is arranged in the described accepting hole; This contact arm extends to form from this base portion one side, and this accepting hole extends certainly, is revealed in outside this insulating body; One fixed part is located at this base portion one side, and this fixed part extends along link to each other with the base portion line stretcher direction of end of this contact arm, and this fixed part one end is contained in the described recess of accommodating again; This weld part is extended by this base portion one end.

9. electric connector as claimed in claim 8, its feature with: when contact arm was stressed, at least one position of described fixed part was with to accommodate recess inconsistent.