CN2674679Y

CN2674679Y - Electric connector

Info

Publication number: CN2674679Y
Application number: CNU2003201203551U
Authority: CN
Inventors: 侯松沛
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: 2003-12-06
Filing date: 2003-12-06
Publication date: 2005-01-26
Anticipated expiration: 2013-12-06

Abstract

The utility model discloses an electric connector, comprising an isolation body with terminal house grooves. A plurality of conductive terminals are respectively housed in the terminal house grooves. The conductive terminal is composed of a holding part, a contact arm downwardly-extending inclinedly from the lower end of the holding part, a guide butting arm upwardly-extending inclinedly from the upper end of the holding part, and two connection chips provided between the contact arm and the guide butting arm. The in-between of the connection chip and the holding part is in split arrangement. With the addition of the connection chip, the utility model can reduce the length of the circuit path, so as to decrease the self-inductance coefficient of the conductive terminal and guarantee better high-frequency signal transmission capability.

Description

Electric connector

[technical field]

The utility model is about a kind of electric connector, particularly about a kind of electric connector that chip module is electrically connected to circuit board.

[background technology]

Electric connector can be used for chip module is electrically connected to circuit board, chip module one side is provided with the electric conductor of structure in the form of sheets, this electric connector generally has lamellar and is connected to the insulating body of circuit board, this insulating body middle part is a conduction region, be equipped with conducting terminal in conduction region, these conducting terminals have better elasticity and the part convexedly stretch in insulating body outside, need insulating body to be applied one and push external force by other assembly, and make after the conducting terminal generation strain electric conductor by the elastic force extruding chip module of conducting terminal, thereby reach being electrically conducted of chip module and circuit board.

Fig. 1 is the assembled sectional view of a kind of existing electric connector and chip module 41 and printed circuit board (PCB) 51.Contain conducting terminal 80 in the insulating body 31 of electric connector, this conducting terminal 80 comprises holding parts 81, be located at respectively on the holding parts 81, the lower end connect arm 84 and contact arm 86, and be located at the free-ended junction 842 that connects arm 84, junction 842 extends upward the upper surface of insulating body 31, with with chip module 41 on the guide-joining plate 412 of corresponding setting contact, the lower surface that contact arm 86 extends insulating body 31 downwards with printed circuit board (PCB) 51 on set corresponding pad 512 connect mutually, thereby the electric connection of setting up 51 of chip module 41 and printed circuit board (PCB)s.

But the circuit paths of the conducting terminal 80 of existing design is long, impedance is big, causes conducting terminal 80 coefficient of self-inductance when transmitting high-frequency signal excessive, thereby influences the high-frequency signal transmission performance.

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

[utility model content]

The purpose of this utility model is to provide a kind of a kind of conducting terminal coefficient of self-inductance that reduces that provides, and guarantees the electric connector of high frequency transmission performance.

A kind of electric connector of the present utility model, it comprises the insulating body of tool terminal containing slot, conducting terminal is contained in the terminal containing slot respectively, this conducting terminal comprises holding parts, from the holding parts lower end the oblique contact arm that extends down, extend obliquely from the holding parts upper end connect arm and be connected with in contact arm with connect being connected contact arm and connecting the brace of arm between the arm, and be branch between brace and the holding parts and be arranged.

Prior art is compared, and the utlity model has following advantage: can shorten circuit paths length by adding two braces, thereby reduce the coefficient of self-inductance of conducting terminal, to guarantee high-frequency signal transmission performance preferably.

[description of drawings]

Fig. 1 is the assembled sectional view of existing electric connector and chip module and printed circuit board (PCB).

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

Fig. 3 is the end view of the conducting terminal of electric connector of the present utility model.

Fig. 4 connects preceding cutaway view for the utility model electric connector and chip module and circuit board.

Fig. 5 is the utility model electric connector and chip module and the circuit board cutaway view after connecting.

[embodiment]

Please in conjunction with consulting Fig. 2, Fig. 3, Fig. 4, the utility model electric connector 1 can be used for accepting chip module 40 and it is incorporated into circuit board 50, electrically connects thereby set up between chip module 40 and circuit board 50.This electric connector 1 comprises insulating body 30, conducting terminal 10.

Conducting terminal 10 is provided with holding parts 12, and holding parts 12 is provided with hangnail district 122, is provided with hangnail 124 in the both sides in hangnail district 122, is bent to form a contact arm 18 under the lower end of holding parts 12 is oblique, and the free end of this contact arm 18 is formed with an arc-shaped contact part 182.The upper end of holding parts 12 is extended obliquely and is provided with one and connects arm 16, is provided with circular arc junction 162 in the free end that connects arm 16.The tabular brace 14 that twenty percent is arranged in parallel is connected with in the both sides that connect arm 16 and contact arm 18 and is branch with holding parts 12 and is arranged, and the position of two braces 14 is close to holding parts 12, make to connect arm 16 and contact arm 18 has long part to stretch out brace 14, thereby guarantee to connect arm 16 and contact arm 18 has elasticity preferably when pressurized.

Conducting terminal 10 is contained in the terminal accommodation holes 302 of insulating body 30 of electric connector 1, the madial wall of terminal accommodation holes 302 is close in the middle part of holding parts 12, and the hangnail 124 in the hangnail district 122 of holding parts 12 is fixed in conducting terminal 10 in the terminal accommodation holes 302 with the respective side walls interference of terminal accommodation holes 302.Contact site 182 stretches out the lower surface of insulating body 30, the also corresponding upper surface that stretches out insulating body 30 of the junction 162 of conducting terminal 10.

Please in conjunction with consulting Fig. 4 and Fig. 5, when when chip module 40 applies a downforce, connect arm 16 and all will produce elastic deformation with contact arm 18, and reliably push against pad 502 set on guide-joining plate set on the chip module 40 402 and printed circuit board (PCB) 50 respectively, thereby between chip module 40, electric connector 1 and circuit board 50, set up conductive path.At this moment, connect and have three conductive paths between arm 16 and the contact arm 18, promptly the signal of telecommunication can be simultaneously reaches the signal transmission that connects 18 of arm 16 and contact arms through two braces 14 and supporting pieces 12.The structure of this conducting terminal 10 is than prior art, two braces 14 have been increased newly, make the resistance of conducting terminal 10 reduce, and the coefficient of self-inductance of conducting terminal 10 is also corresponding to be reduced, thereby avoid when the current signal of the conducting terminal 10 of flowing through changes, conducting terminal 10 produces the variation that a bigger induced electromotive force hinders current signal greatly because of its coefficient of self-inductance, and it is slow to make that current signal changes, distorted signals when promptly causing high-frequency transmission.

It is to be noted: brace 14 is not necessarily to be connected with in connecting the both sides of arm 16 with contact arm 18, also be not necessarily to be provided with two braces 14 simultaneously, as long as increase conductive path with contact arm 18 in connecting arm 16, effectively reduce and connect the two impedance of arm 16 and contact arm 18, and reduce the coefficient of self-inductance of conducting terminal 10 simultaneously, all can reach the purpose of this utility model.

Claims

1. electric connector, it comprises the insulating body that is provided with terminal containing slot, and be contained in the conducting terminal of terminal containing slot, the contact arm that this conducting terminal comprises holding parts, extend to be provided with from the holding parts lower ends downward, and extend upward the arm that connects of setting from the holding parts upper end, it is characterized in that: contact arm is provided with the brace that is connected contact arm and connects arm with connecting between the arm, and is branch between brace and the holding parts and is arranged.

2. electric connector as claimed in claim 1 is characterized in that: contact arm and connect and be provided with two braces between the arm, and brace is connected with in contact arm and the both sides that connect arm.

3. electric connector as claimed in claim 2 is characterized in that: two braces become to be arranged in parallel, and are separate and do not contact with each other between this two brace and the holding parts three.

4. electric connector as claimed in claim 3 is characterized in that: brace and contact arm and the link position that connects arm be close to holding parts and and holding parts between be not in contact with one another, to guarantee connecting arm and contact arm has elasticity preferably.

5. electric connector as claimed in claim 1 is characterized in that: contact arm is connected contact arm and connects two braces of arm with connecting to be arranged in parallel between the arm, so that contact arm and connect and be formed with three conductive paths between the arm.

6. electric connector as claimed in claim 5 is characterized in that: contact arm is respectively equipped with arc-shaped contact part and arc junction with the free end that connects arm.

7. electric connector as claimed in claim 6 is characterized in that: holding parts is provided with the hangnail district, and the hangnail district is provided with hangnail so that conducting terminal reliably is immobilizated in terminal containing slot.

8. as claim 4 or 7 described electric connectors, it is characterized in that: this electric connector is electrically connected to circuit board by the downforce that puts on the chip module with the chip module, and wherein contact arm is connected to circuit and pulls, and connects arm and is connected to the chip module.