CN2638271Y

CN2638271Y - Electric connector terminal

Info

Publication number: CN2638271Y
Application number: CNU032731957U
Authority: CN
Inventors: 马浩云
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: 2003-06-25
Filing date: 2003-06-25
Publication date: 2004-09-01
Anticipated expiration: 2013-06-25

Abstract

The utility model discloses an electrical connector terminal that is used in a socket electrical connector. The terminal is used for being electrically connected with a circuit board and a wafer module group, comprising a base that is fixed on an insulation body of the socket electrical connector, a welding part that stretches from one end of the base, an elastic part that stretches from the other end of the base and takes a shape of a circle and a contacting part that stretches from the tail end of the elastic body. Wherein the welding part is used for welding the electrical connector to the circuit board, and the base is used for fixing the electrical connector terminal to the insulation body of the electrical connector. The elastic part controls the deformation of the terminal in the vertical direction and balances the extrusion force of the wafer module group to the terminal, while the contacting part is electrically connected with a conductive strip of the wafer module group, and the length and the marking forming angle control the level slip of the contacting part on the conductive strip of the wafer module group.

Description

Electric connector terminal

[technical field]

The utility model refers to a kind of electric connector terminal that is easy to control its horizontal sliding amount on butt joint wafer module conducting strip especially about a kind of electric connector terminal.

[background technology]

Planar lattice array (LGA) packing forms has been given up the stitch form that generally adopts at present, and adopted the plurality of conducting strips of arranging in the planar lattice array mode, these conducting strips are electrically conducted with the conducting terminal of mode of pushing and lga connector, and in order to reach this purpose, the conducting terminal of lga connector often partly exposes its terminal containing slot and contacts with the conducting strip with the LGA encapsulation.

When the conducting strip of the wafer module of LGA encapsulation and the conducting terminal of lga connector place air, tend to be subjected to oxidation and form layer oxide film, so just can influence being electrically conducted between conducting strip and the connector conducting terminal in its surface.In order to solve this topic, United States Patent (USP) the 5th, 139,427,5,259,769,5,378,160,5,820,389,6,193, proposed corresponding solution No. 523, promptly utilized the horizontal sliding of conducting terminal on the conducting strip of wafer module of connector to remove the contact-making surface oxide-film, thereby obtain the excellent electrical property contact.Existing a kind of have remove the oxide-film effect LGA electric connector terminal 5 as shown in Figure 1, terminal 5 comprises base portion 51 and the elastic portion 52 of extending from base portion 51, the elastic portion 52 terminal contact sites 53 that form, when wafer module 58 is installed, the contact site 53 of these wafer module 58 press terminals 5, elastic portion 52 can be subjected to displacement on level and vertical direction, its contact site 53 meeting occurred level slippages on the conducting strip 59 of wafer module 58, the frictional force that this process produces can be wiped the oxide-film on conducting strip 59 and terminal 5 contact-making surfaces off, connects thereby make terminal 5 and conducting strip 59 reach excellent electrical property.

Because wafer module 58 develops towards miniaturization, high density direction, the spacing distance of its conducting strip 59 is very little, if the skidding distance that terminal 5 forms on conducting strip 59 is excessive, terminal 5 may with corresponding conducting strip 59 correct butts, if skidding distance is too small, then do not reach the removal oxide-film and reach the effect that well connects, so particularly important the control of this skidding distance.

The skidding distance that terminal 5 forms on conducting strip 59 depends on the length of elastic portion 52 and the angle of extending from base portion 51 thereof, and the length of elastic portion 52 and can influence other mechanical property of terminal 5 from the angle that base portion 51 extends, the positive force of terminal 5, the deflection and the terminal of vertical direction connect accurate location in the device or the like when for example cooperating with wafer module 58 at electricity, therefore the feasible control to this skidding distance of the consideration of problems are become very complicated.

So, be necessary to design a kind of novel electric connector terminal to overcome the problems referred to above.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector terminal, and it is easy to be controlled at the horizontal sliding amount on the wafer module conducting strip.

In order to reach above-mentioned purpose, the electric connector terminal that conforms to the utility model comprises the base portion that is immobilizated in the electric connector for socket insulating body, extends the weld part that is provided with, extends and be the circular terminal contact site that is provided with that extends of elastic portion and own elasticity portion from the base portion other end from base portion one end.Wherein weld part is used for this electric connector terminal is soldered to circuit board, base portion is used for this electric connector terminal is immobilizated in terminal containing slot, the deflection of elastic portion control terminal in the vertical direction and in order to the extruding force of chip-balancing module to terminal, the electrical butt of the conducting strip of contact site and wafer module, its length and the horizontal sliding amount of bending angle control contact site on wafer module conducting strip.

Compare with prior art, advantage of the present utility model is: the elastic portion of terminal provide elastic force with partial equilibrium wafer module gravity and determine deflection on the terminal vertical direction, and control its horizontal sliding amount on wafer module conducting strip by the length and the extension angle of contact site, therefore more simple, effective to the control of horizontal sliding amount.

[description of drawings]

Fig. 1 is the schematic diagram that a kind of existing electric connector terminal and wafer module electrically connect.

Fig. 2 is the stereogram of the utility model electric connector terminal.

Fig. 3 is that the utility model electric connector terminal is assembled in the schematic diagram in the electric connector for socket.

Fig. 4 is the schematic diagram that wafer module and the utility model electric connector terminal electrically connect.

[embodiment]

See also Fig. 2 and Fig. 3, Figure 2 shows that the stereogram of the utility model electric connector terminal 1, this electric connector terminal 1 is used for electric connector socket, as planar lattice array socket (not shown), so that a wafer module 3 is electrically connected to a printed circuit board (PCB) 4.

This electric connector terminal 1 comprises base portion 10, weld part 12, elastic portion 20 and contact site 30.Wherein this base portion 10 stretches out respectively on the two relative side 11 of its lower end and is provided with some hangnails 13; This weld part 12 extends from an end of base portion 10, so that electric connector terminal 1 is soldered to circuit board 4; This elastic portion 20 is circular, extends and formula is upwards curved in the shape of a spiral forms around some circles from the other end of base portion 10; The upper end of contact site 30 own elasticity portions 20 is extended and is the cantilever setting, and in its terminal contact-making surface 301 that forms.

See also Fig. 3 and Fig. 4, the insulating body 21 of the electric connector that is used with this electric connector terminal 1 is provided with plurality of terminals accepting groove 22, and this terminal containing slot 22 is provided with support slot 23 and cooperates with hangnail 13 interferences of electric connector terminal 1.

The interference engagement of electric connector terminal 1 by hangnail 13 and support slot 23 is immobilizated among the terminal containing slot 22, and is soldered to circuit board 4 by its weld part 30.During assembling wafer module 3, wafer module 3 is by the downward elasticity extruding of himself gravity electric connector terminal 1, because the contact site 30 of electric connector terminal 1 is to be the cantilever setting, it is subjected to the external force extruding, and displacement on vertical direction and the horizontal direction can take place, and finally reach the conducting strip 31 elasticity butts of its contact-making surface 301 and wafer module 3, and the displacement on the above-mentioned horizontal direction is the skidding distance of electric connector terminal 1 on the conducting strip 31 of wafer module 3; Owing to be circular setting, 20 in the vertical directions compressions of the elastic portion of electric connector terminal 1 and form the extruding force of an elastic force that makes progress with 3 pairs of electric connector terminals 1 of chip-balancing module.

So in the design process of electric connector terminal 1, the deflection of electric connector terminal 1 in the vertical direction reaches the setting that the support force of wafer module 3 is depended primarily on elastic portion 20, and the skidding distance of electric connector terminal 1 on the conducting strip 31 of wafer module 3 is only relevant with contact site 30, change the length or the bending angle of contact site 30, just can change above-mentioned skidding distance, and need not to consider simultaneously that this changes to deflection on the vertical direction of electric connector terminal 1 and to the influence of the support force of wafer module 3, thereby be easier to effectively control the horizontal sliding amount of electric connector terminal 1 on the conducting strip 31 of wafer module 3.

Claims

1. electric connector terminal, it comprises base portion, is extended the elastic portion that is provided with, extended the contact site that is provided with and extended the weld part that is provided with by the base portion other end by elastic portion by base portion one end, and it is characterized in that: this elastic portion is circular setting.

2. electric connector terminal as claimed in claim 1 is characterized in that: its elastic portion is extended also spiral upwards bending from base portion one end and is formed around some circles.

3. electric connector terminal as claimed in claim 1 is characterized in that: the two relative side of its base portion is provided with some hangnails.

4. electric connector terminal as claimed in claim 1 is characterized in that: its contact site is the cantilever setting, and in its terminal contact-making surface that forms.