CN2824369Y

CN2824369Y - Electrical connector

Info

Publication number: CN2824369Y
Application number: CNU2005201139056U
Authority: CN
Inventors: 江圳祥
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2005-07-15
Filing date: 2005-07-15
Publication date: 2006-10-04
Anticipated expiration: 2015-07-15

Abstract

An electric connector is used for electrically connecting a circuit board and a chip module and comprises an insulating body, a plurality of accommodating grooves, a stop part and a plurality of terminals, wherein the insulating body is provided with a plurality of accommodating grooves, the top surface of the insulating body is provided with the stop part, the terminals are correspondingly accommodated in the accommodating grooves of the insulating body, and each terminal comprises a base part, an arm part, a contact part and a welding part. The arm portion is bent and extended from one side of the top edge of the base portion to the outside of one surface of the base portion, the middle of the arm portion is located above the corresponding stop portion, and when the chip module is in pressure connection, the middle of the arm portion abuts against the stop portion. A contact portion is formed at a free end of the arm portion, the contact portion being exposed to the top surface of the insulating body. Therefore, the terminal is provided with the longer elastic arm, so that the terminal is easy to be connected with the chip module in a pressing mode, after the terminal is connected with the chip module in a pressing mode, the positive force can be increased, the impedance can be reduced, and the conductivity between the terminal and the chip module can be increased.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, is meant a kind of electric connector that is used to electrically connect circuit board and chip module especially.

Background technology

Along with the direction of computer toward miniaturization develops, electric connector also develops toward the direction of miniaturization thereupon, and general electric connector includes insulating body and terminal thereof.Reason owing to the compact in size of electric connector own, so taking up room of each terminal is also more and more littler, has preferable Elastic Contact performance in order to ensure terminal, so that carry out the excellent electrical property connection with corresponding chip module (as CPU), forefathers create the long existing electric connector terminal of a kind of elastic arm, disclose as TaiWan, China patent application case number No. 091216624.

Yet the elastic arm of existing electric connector terminal is subject to the specification limits of the storage tank of insulating body, and can't extend, so its Elastic Contact performance improvement is limited.

Summary of the invention

Main purpose of the present utility model, being to provide a kind of electric connector, and its terminal has better elastic, makes it easy with the chip module crimping at the beginning, reaches assembling and is easy to purpose.

Another purpose of the present utility model, being to provide a kind of electric connector, and after its terminal and the chip module crimping, positive force increases, and then reduces the contact impedance between terminal and the chip module, to increase the conductivity between terminal and the chip module.

In order to reach above-mentioned purpose, the utility model provides a kind of electric connector, is that it comprises: insulating body is to be provided with several storage tanks, and the end face of this insulating body is provided with several stop sections in order to electric connection circuit board and chip module; And several terminals, be that correspondence is placed in the storage tank of this insulating body, wherein each terminal comprises: base portion; Arm is to be extended by the outside bending on a surface of this base portion of side direction of this base portion apical margin, and wherein the centre of this arm is positioned at the top of corresponding this stop section, and when the chip module crimping, the centre of this arm is connected to this stop section; Contact site is formed in the free end of this arm, and this contact site exposes the end face of this insulating body; And weld part, be that the root edge by this base portion extends to form.

Description of drawings

Fig. 1 is the stereogram that electric connector terminal of the present utility model is placed in insulating body;

Fig. 2 is the vertical view that electric connector terminal of the present utility model is placed in insulating body;

Fig. 3 is the end view before electric connector terminal of the present utility model and the chip module crimping;

Fig. 4 is the end view after electric connector terminal of the present utility model and the chip module crimping;

Fig. 5 is the end view after electric connector terminal of the present utility model and the further crimping of chip module;

Fig. 6 is the three-dimensional exploded view of electric connector of the present utility model;

Fig. 7 is the three-dimensional combination figure of electric connector of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

See also Fig. 1 and Fig. 2, be respectively stereogram and vertical view that electric connector terminal of the present utility model is placed in insulating body.The utility model provides a kind of electric connector 1, is that it comprises: an insulating body 20 and several terminals 10 in order to electric connection circuit board and chip module.

This insulating body 20 is provided with several storage tanks 21, and the end face of this insulating body 20 is provided with stop section 22.

These terminals 10 are that correspondence is placed in the storage tank 21 of this insulating body 20, and wherein each terminal 10 comprises a base portion 11, an arm 12, a contact site 124, a weld part 13, a holding parts 14 and an interference part 15.

This base portion 11 has first surface 111 and second surface 112, this arm 12 is extended by the outside syllogic bending of this first surface 111 of a side direction of these base portion 11 apical margins, wherein the centre of this arm 12 is positioned at the top of corresponding this stop section 22, when chip module 4 crimping, the centre of this arm 12 is connected to this stop section 22.Furtherly, this arm 12 extends one first kink 121, one second kink 122 and one the 3rd kink 123 by the outside bending continuously of this first surface 111 of a side direction of these base portion 11 apical margins, and wherein this second kink 122 is positioned at the top of corresponding this stop section 22 separately.

This contact site 124 is bent to form the free end at this arm 12, and it exposes the end face of this insulating body 20, in order to be electrically connected at chip module.

This weld part 13 is extended to form by the root edge of this base portion 11, is used for accepting the tin ball, to be electrically connected on the circuit board.

This holding parts 14 is extended to form by the opposite side of base portion 11 apical margins, and this holding parts 14 is positioned at a side of this arm 12, and this holding parts 14 and these weld part 13 corresponding settings are assembled in each terminal 10 in the storage tank 21 of this insulating body 20 in order to convenient.

This interference part 15 is stretched out by the two opposite sides of this base portion 10 and forms, in order to these insulating body 20 interference engagement.

Seeing also Fig. 3, is the end view before electric connector terminal of the present utility model and the chip module crimping.Each terminal 10 is contained in the insulating body 20, and the contact site 124 of this arm 12 is corresponding to the pad 40 of chip module 4.The arm 12 of terminal 10 has the syllogic bending, and it is respectively first kink 121, second kink 122 and the 3rd kink 123, by this, provides terminal 10 better elastic, makes it easy with chip module 4 crimping at the beginning, reaches assembling and is easy to purpose.

Seeing also Fig. 4 and Fig. 5, is after electric connector terminal of the present utility model and the chip module crimping and the end view of further crimping.When the pad 40 corresponding crimping of terminal 10 and chip module 4, this arm 12 produces strain because of the strength that presses down, make first kink, 121 flexural deformations of this arm 12, so chip module 4 is when assembling at the beginning, the arm 12 of terminal 10 provides long elastic arm, and has preferable elasticity, make chip module 4 be assembled on the electric connector easily, first kink 121 for the treatment of this arm 12 is after bending, second kink 122 of this arm 12 can be resisted against the stop section 22 of insulating body 20 end faces, fulcrum when causing these arm 12 crimping is moved on to the junction of second kink 122 and the 3rd kink 123 by the junction of the base portion 11 and first kink 121, at this moment, the 3rd kink 123 of arm 12 can continue to bear the strength that chip module 4 presses down and further produce strain, therefore the downward positive force that born of arm 12 increases, and arm 12 also can give the pad 40 that a suitable reaction force removes contact chip module 4 simultaneously.Therefore, the contact impedance between contact site 124 and the chip module 4 can reduce, to increase the conductivity between terminal 10 and the chip module 4.

Seeing also Fig. 6 and Fig. 7, is the three-dimensional exploded view and the constitutional diagram of electric connector of the present utility model.Aforesaid electric connector 1, it further comprises a fastener 30, in order to chip module 4 is closely buckled on this insulating body 20, this fastener 30 comprises a underframe 31, a press box 32 and a depression bar 33.This press box 32 is a hollow framework, it is the side that is articulated in this underframe 31 that to raise and to cover, and this depression bar 33 is the opposite sides that are hubbed at this underframe 31, wherein this insulating body 20 is set up on this underframe 31, and this insulating body 20 is arranged between this underframe 31 and this press box 32, and this chip module 4 is to be arranged on this insulating body 20.

In sum, when the utility model electric connector 1 electrically connects with chip module 4, can provide preferable elasticity earlier, ease of assembly, and after crimping, provide bigger positive force again, with reduction contact impedance between the two, and then increase conductivity.

The above; only be one of preferable feasible embodiment of the utility model; can not therefore promptly limit to interest field of the present utility model; concerning being familiar with those of ordinary skill in the art; such as use the technical solution of the utility model and technical conceive to make other various corresponding changes and distortion, and all these changes and distortion all should belong within the protection range of the utility model claim.

Claims

1, a kind of electric connector is in order to electric connection circuit board and chip module, it is characterized in that it comprises:

Insulating body is to be provided with several storage tanks, and the end face of this insulating body is provided with several stop sections; And

Several terminals is that correspondence is placed in the storage tank of this insulating body, and wherein each terminal comprises:

Base portion;

Arm is to be extended by the outside bending on a surface of this base portion of side direction of this base portion apical margin, and wherein the centre of this arm is positioned at the top of corresponding this stop section, and when the chip module crimping, the centre of this arm is connected to this stop section;

Contact site is formed in the free end of this arm, and this contact site exposes the end face of this insulating body; And

Weld part is that the root edge by this base portion extends to form.

2, electric connector according to claim 1, it is characterized in that, this this arm extends one first kink, one second kink and one the 3rd kink by the outside bending on a surface of this base portion of side direction of this base portion apical margin, and wherein this second kink is positioned at the top of corresponding this stop section separately.

3, electric connector according to claim 1, it is characterized in that, it further comprises holding parts, this holding parts is extended to form by the opposite side of base portion apical margin, this holding parts is positioned at a side of this arm, wherein this holding parts and the corresponding setting of this weld part are loaded on each terminal group in the storage tank of this insulating body in order to convenient.

4, electric connector according to claim 1 is characterized in that, it further comprises the interference part, and this interference part is stretched out by the two opposite sides of this base portion and forms, in order to this insulating body interference engagement.

5, electric connector according to claim 1 is characterized in that, it further comprises a fastener, and it is in order to chip module being closely buckled on this insulating body, and this fastener comprises a underframe; And a press box, it is the hollow framework, is the side that is articulated in this underframe that can raise and cover; Wherein this insulating body is set up on this underframe, and this insulating body is arranged between this underframe and this press box, and this chip module is to be arranged on this insulating body.

6, electric connector according to claim 5 is characterized in that, this fastener further comprises a depression bar, and it is the opposite side that is hubbed at this underframe.