CN2523053Y

CN2523053Y - Socket connector terminal

Info

Publication number: CN2523053Y
Application number: CN 01279922
Authority: CN
Inventors: 大北正夫; 黄耀諆
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: 2001-12-24
Filing date: 2001-12-24
Publication date: 2002-11-27
Anticipated expiration: 2011-12-24

Abstract

The utility model discloses a socket connector terminal which comprises a base body and two arm bodies, wherein the base body comprises a body and a welding part used for connecting the connector terminal to a circuit board; the two arm bodies extend from the opposite sides of the body and comprise two connecting parts oppositely arranged and mutually paralleled; a contact part extends from the connecting part towards the external side direction of the body, a lead part is extends from the two connecting parts towards the direction of both sides of the body. The lead parts are positioned above the body, and a lead space formed by the lead parts is positioned right above the body. The front part of the body is provided with an opening which is internally provided with a holding sheet extending from the body and curving to a certain angle which leads the terminal to stably embed into a harbor groove of the socket connector both in the front direction and the back direction.

Description

The socket connector terminal

[technical field]

The utility model relates to a kind of socket connector terminal, refers in particular to a kind of zero-force connector for socket terminal that electrical path can be provided between integrated circuit package and circuit board.

[background technology]

In order to accept integrated circuit package (following is example with CPU) and to make its socket connector that is mounted on the circuit board be typically provided with the zero insertion force terminal, terminal one end of this socket connector is welded on the circuit board, the other end can be pegged graft for the CPU stitch, to realize the electric connection between CPU and the circuit board.Because CPU is high to the performance requirement that is electrically connected, and its stitch is very fine and closely woven, so require the terminal pitch of socket connector the smaller the better.U.S. Patent application the 09/838th, disclosed a kind of CPU socket bonder terminal 5 for No. 051, as shown in Figure 1, it comprises a matrix 51 and a pair of arm 52, and wherein matrix 51 comprises in the terminal containing slot that is housed in connector and abuts against the body 511 on the accepting groove inwall and the hangnail 5111 that extends to both sides from body, terminal is retained on the neck 512 in the terminal containing slot of socket connector and can be welded on weld part 513 on the printed circuit board (PCB).Each arm 52 be comprise a pair of from the relative both sides of matrix the downward-sloping upper arm 521 that extends and abut in corresponding terminal accepting groove inwall, from the free end of this upper arm in opposite directions obliquely the forearm 522 that extends of one, be located at the free-ended contact site 523 of this forearm and from the guidance part 524 of contact site to body direction diagonally extending.

As depicted in figs. 1 and 2, wherein Fig. 2 is the expansion layout viewing of terminal 5 on metal material belt, because terminal arm 52 is positioned at matrix 51 sides, and has a neck 512 between its two guidance part 524, two guidance parts 524 are the both sides that are positioned at neck 512, the arm 52 of terminal is by the forming materials that is positioned at matrix 51 left and right sides fully, and then the shaping that bends inwards, this width that makes that each terminal occupies on the strip becomes big, centre-to-centre spacing between two abutting end strengthens simultaneously, thereby make the developed area of terminal increase, not only wasted material and made that distance becomes big between the terminals of adjacent, usually in assembling process, terminal is that the strip of ining succession earlier in a row is installed on the socket, because the restriction of terminal configuration makes the terminal pitch on the strip not diminish according to the little spacing of accepting groove on the socket, thereby has strengthened assembly difficulty, also reduce its punching press, electroplate and efficiency of assembling, and its manufacturing cost is increased.Generally speaking, when electroplating, only need the gold-plated conductance and the anti-plug performance that can improve itself and CPU stitch in termination contact portion 524, but because existing terminal is to adopt the top to be provided with, be about to the top that support sector 60 is located at two guidance parts 524, very easily gold is plated on the body during plating, thereby cause waste, cost rises.

As shown in Figure 3, it is moving of B ' direction that the hangnail interfering edge that the hangnail of its terminal produces can only limit on the terminal left and right directions, and difficulty limits its fore-and-aft direction A ' and moves, promptly in the fore-and-aft direction instability, when the CPU stitch when contact site moves, terminal easily advances with the CPU stitch, thereby influences the effect that contacts of CPU and terminal, and then influences the electric conductivity of CPU.

[summary of the invention]

The purpose of this utility model is to provide a kind of zero insertion force terminal, and it has not only improved punching press, plating and efficiency of assembling, save material, and fixing is stable.

The utility model adopts following technical scheme: the socket connector terminal comprises matrix and two arm bodies, and wherein matrix comprises body and is used for this bonder terminal is connected to the weld part of circuit board; Two arm bodies are to stretch out from the relative both sides of body, and it includes two connecting portions that are provided with relatively and are parallel to each other, and is extended with contact site from connecting portion towards the body lateral direction, are extended with guidance part from two contact sites towards body two side directions.And guidance part is positioned at the top of body, and the guiding space that guidance part forms is positioned at directly over the body.Be provided with an opening in the front portion of body, be provided with a retaining sheet from body extension and bending certain angle in opening, it can make terminal firmly be embedded in the accepting groove of socket connector on fore-and-aft direction.And two arm bodies are to launch by material is inboard, make the pitch smaller of adjacent both ends, and the charging efficient of punching press and plating all is improved.Strip upper terminal pitch smaller, and then can when mounting terminal, reduce the assembling number of times that terminal is stuck with.In the terminal forming process, the support sector of strip employing bottom is provided with, and when terminal is electroplated, only needs the terminal upper portion plating is got final product, thereby has reduced cost.

Compared with prior art, the utility model socket connector terminal guidance part is positioned at the top of body, and the guiding space that guidance part forms is positioned at directly over the body, and two arm bodies launch by material is inboard, make the pitch smaller of adjacent both ends, thereby the charging efficient of punching press and plating is improved all; In the open front of body, be provided with a retaining sheet from body extension and bending certain angle, make terminal on fore-and-aft direction, firmly be embedded in the accepting groove of socket connector; The support sector of strip adopts the bottom to be provided with, and plating quantity also is improved in the unit interval, and saves raw material, has reduced production cost.

[description of drawings]

Fig. 1 is the stereogram of existing socket connector terminal.

Fig. 2 launches the design of back on the strip schematic diagram of arranging for existing socket connector terminal.

Fig. 3 inserts the vertical view of existing socket connector terminal for the CPU stitch.

Fig. 4 is the stereogram of the utility model socket connector terminal.

Fig. 5 launches the design of back on the strip schematic diagram of arranging for the utility model socket connector terminal.

Fig. 6 inserts the vertical view of the utility model socket connector terminal for the CPU stitch.

[embodiment]

See also shown in Figure 4ly, the utility model socket connector terminal 1 comprises matrix 10 and two arm bodies 20, and wherein matrix 10 comprises body 11 and is used for this bonder terminal is connected to weld part 12 on the circuit board.Front surface at body has a recess 111, and a retaining sheet 112 from the outside bending of body 11 one extension certain angle is arranged in recess 111, and it can make terminal 1 firmly be entrenched in the accepting groove of socket connector on fore-and-aft direction.

Two arm bodies 20 are to stretch out from the relative both sides of above-mentioned body 11, and the width that arm body 20 stretches upwards is gradually narrow, and highly then greater than the height of matrix 10, arm body 20 extends upward the height that exceeds matrix 10 and can adjust according to stitch 40 length of cooperation CPU for it.Arm body 20 includes two connecting portions 21 that are provided with relatively and are parallel to each other, two connecting portions 21 are formed with the receiving space 25 of accommodating CPU stitch 40 jointly, the end of connecting portion 21 becomes contact site 22, side near the body direction on contact site 22 is extended with guidance part 23, by this design, make guidance part 23 for body 11 directly over, two guidance parts 23 are symmetrical arranged, and its inside are inserted for CPU stitch 40 in the common bigger guiding space 24 that forms of between.

See also Fig. 4 and shown in Figure 5, when terminal 1 launches to be arranged on the strip, be before its bending is shaped, form the quadrangle of a sealing between the two arm bodies 20 of terminal 1, the guidance part 23 of two arm bodies 20 contacts with each other and is positioned at above the body, the guidance part of two arm bodies 20 mutual 23 contacts behind the terminal planar development, thereby make its narrowed width in the constant situation lower terminal of guidance part 23 length, the terminals of adjacent spacing is little, terminal spacing on strip with this configuration can change with accepting groove, because the terminal pitch on the socket is less than the terminal pitch on the strip, terminal hole on the socket could be stuck with so need to insert several times, this socket connector terminal is by changing the structure of terminal, makes pitch smaller between the terminal, thereby reduced the assembling number of times, improved efficiency of assembling.The support sector 30 of this socket connector terminal 1 strip adopts the bottom to be provided with, and is about to the below that support sector 30 is located at weld part 12, not only makes the electroplating velocity lifting but also has saved the plating raw material, has overcome the problem that prior art exists.

See also shown in Figure 6, when CPU stitch 40 is inserted in this socket connector, it is inserted into earlier in the guiding space 24 of terminal 1, be inserted into the guiding space along direction A then, enter again in the receiving space 25 that terminal contact site 22 forms and and contact, thereby between circuit board and CPU, set up electric connection with the contact site 22 of terminal.Because the maintaining part 112 of terminal 1 is located at the top of body 11, it can make terminal firmly be embedded in the accepting groove of socket connector on fore-and-aft direction B.

Claims

1. socket connector terminal, it comprises matrix and two arm bodies at least, wherein matrix comprises body and is used for this bonder terminal is connected to weld part on the circuit board; Two arm bodies are that relative two lateral bucklings from above-mentioned body form, and the arm body extends and its taper in width upward, are formed with two connecting portions that are provided with relatively whereby, and the end of connecting portion becomes contact site, and the side near the body direction on contact site is extended with guidance part; It is characterized in that: guidance part is positioned at the top of body, the guiding space that guidance part forms be positioned at body directly over, the guidance part of two arm bodies contacts with each other behind the terminal planar development.

2. socket connector terminal as claimed in claim 1 is characterized in that: the common receiving space that forms of the connecting portion of bonder terminal, two connecting portions are parallel to each other when extending upward, and the contact site of the end of connecting portion also is parallel to each other.

3. socket connector terminal as claimed in claim 1 or 2 is characterized in that: the front surface at body offers a recess, and a retaining sheet from the extension of body one is arranged in recess, and retaining sheet outwards bends certain angle from body.

4. socket connector terminal as claimed in claim 3 is characterized in that: the arm body extends upward the height that exceeds matrix and can adjust according to the stitch lengths of CPU that terminal cooperates.

5. the strip of socket connector terminal as claimed in claim 4 is characterized in that: the quadrangle that forms a sealing between the two arm bodies of terminal.

6. the strip of socket connector terminal as claimed in claim 5 is characterized in that: the guidance part of terminal is positioned at body top, narrows down gradually at the width of the constant situation lower terminal of guidance part length.