CN208045744U

CN208045744U - Electric connector

Info

Publication number: CN208045744U
Application number: CN201820359099.8U
Authority: CN
Inventors: 黄子耀
Original assignee: Fu Ding Precision Components Shenzhen Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Fu Ding Precision Components Shenzhen Co Ltd; Hongteng Precision Technology Co Ltd
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2018-11-02
Anticipated expiration: 2028-03-16
Also published as: TWM585435U

Abstract

A kind of electric connector comprising the conducting terminal that there is the insulating body of several terminal grooves and be housed in the terminal groove；There is the insulating body upper surface and lower surface, the terminal groove to run through the upper and lower surface；The conducting terminal includes the first main part and the second main part, the elastic portion and weld part that are folded upward at from first main body upper end extension for being fixed on terminal groove, and first main part and the second main part are connected to each other by an interconnecting piece；The lower end of second main part is formed with the first branch and the second branch being separated from each other, the weld part continues extension from first branch and is formed, a slit is formed between first branch and second branch, the slit has a transverse width, the numerical value of the transverse width is located between 0.1~0.25mm, thereby reduces the impedance of entire electric connector.

Description

Electric connector

【Technical field】

The utility model is in relation to a kind of electric connector more particularly to a kind of electric connector for chip module connection.

【Background technology】

With flourishing for the concepts such as big data, cloud computing, Internet of Things, almost each new product is in what is said or talked about high-speed transfer Using each application module develops towards high speed direction, to realize above-mentioned high-speed transfer application, for connecting each mould Input/output interface between block also needs high-speed transfer certainly, and as the central processing of the cores such as computer, server Device then develops towards higher speed, the more directions of pin, thus, for for connecting the electricity between central processing unit and motherboard Connector also proposed increasingly higher demands.In practical high-frequency test, the upper end of electric connector terminal is equipped with contact site bullet Property abut the conductive spacer of central processing unit, lower end is soldered to circuit board equipped with weld part, and contact site is generally connected with inclination and prolongs Elastic arm is stretched, to provide flexible mechanical property, ensures that the reliable contacts between contact site and central processing unit, the weld part are general Have with the holding parts of the terminal upper portion relatively remote.It is very high to mechanical property requirements however since number of terminals is numerous, it needs It to reduce terminal characteristic impedance to the greatest extent again while ensureing the mechanical performance of terminal, it is outstanding how to control conducting terminal It is it becomes always more scabrous problem in the characteristic impedance of weld part near zone.

Therefore, it is necessory to provide a kind of performance more preferably electric connector, to be further improved the above problem.

【Utility model content】

The purpose of this utility model is to provide a kind of impedance matching more preferably electric connectors.

To achieve the above object, the utility model adopts the following technical solution：A kind of electric connector comprising have several The insulating body of terminal groove and the conducting terminal being housed in the terminal groove；The insulating body has upper surface and following table Face, the terminal groove run through the upper and lower surface；The conducting terminal includes the first main part and second for being fixed on terminal groove Main part, the elastic portion and weld part that extension is folded upward at from first main body upper end, first main part and Two main parts are connected to each other by an interconnecting piece；The lower end of second main part be formed with the first branch for being separated from each other with Second branch, the weld part continue to extend and be formed from first branch, first branch and second branch it Between form a slit, there is the slit transverse width, the numerical value of the transverse width to be located between 0.1~0.25mm.

Further, first main part, interconnecting piece and the second branch have lower face, under first main part The lower face of the end face interconnecting piece extends downwardly, and the lower end of the lower face interconnecting piece of second branch is downwards Extend.

Further, the roof of the slit and the lower face of the interconnecting piece are horizontally aligned to each other.

Further, second branch has a lower-upper length, and the numerical value of the lower-upper length is located at as 0.25~ Between 0.4mm.

Further, the lower face and the lower face of the second branch of first main part are horizontally aligned to each other.

Further, first main part includes vertical portion and subtracts narrow portion from what the vertical portion upwardly extended, described The width for subtracting narrow portion is less than the width of the vertical portion, and second main part includes the extension being located above and prolongs described in The fixed part that extending portion extends downwardly, the width of the fixed part are more than the width of the extension.

Further, first main part and the second main part are equipped with fixing in its side far from the interconnecting piece Portion, side of second branch far from first branch are concordant with the holding parts upwards.

Further, the lower face of second branch and the first main part is above the weld part.

Further, the elastic portion includes being folded upward at the flat part of extension from first main part and being put down from described The contact site that plate portion extends further up is connected between the elastic portion and first main part by a bending part, The width of the flat part is more than the width of the contact site and bending part, the width of the bending part and the width for subtracting narrow portion It spends identical.

Further, the flat part in the form of narrowing toward each end is broad in the middle, to both sides periphery protrude by middle part.

Compared with prior art, the utility model at least has the advantages that：The conducting terminal is close to weld part Several branches of length are added in one end, and between branch between be separated with specific range so that the transverse direction between terminals of adjacent Spacing becomes smaller, so that the impedance of entire electric connector becomes smaller, to promote the high-frequency transmission performance of the electric connector.

【Description of the drawings】

Fig. 1 is the stereogram of the utility model electric connector and chip module.

Fig. 2 is the stereogram for the conducting terminal that the utility model electric connector takes out after conducting terminal.

Fig. 3 is the stereogram of another angles of Fig. 2.

Fig. 4 is sectional view when electric connector shown in Fig. 1 is not loaded into chip module.

【Main element symbol description】

100 chip module 200 of electric connector

300 reinforced sheet 101 of circuit board

102 rocking bar 103 of pressing plate

1 upper surface 11 of insulating body

12 terminal groove 13 of lower surface

2 slit 20 of conducting terminal

First main part, 21 vertical portion 211

Subtract 212 first holding parts 213 of narrow portion

Second main part, 22 fixed part 221

222 first branch 223 of extension

Second branch, 224 second holding parts 225

23 flat part 231 of elastic portion

232 weld part 24 of contact site

25 bending part 26 of interconnecting piece

Tin ball 3 lower face a1, a2, a3

Following specific implementation mode will further illustrate the utility model in conjunction with above-mentioned attached drawing.

【Specific implementation mode】

Hereinafter, the specific implementation mode that the utility model electric connector 100 will be introduced in conjunction with Fig. 1 to Fig. 4.The electrical connection For device 100 for being electrically connected chip module 200 to circuit board 300, the electric connector 100 includes having several terminal grooves 13 Insulating body 1, several conducting terminals 2 being housed in the terminal groove 13 and the conducting terminal 2 is soldered to the circuit The tin ball 3 of plate 300.The electric connector 100 further includes that frame is set to the reinforced sheet 101 of 1 periphery of insulating body, is rotatably assembled in The pressing plate 102 of the opposite sides of reinforced sheet 101 and the rocking bar 103 that pressing plate 102 is fixed to reinforced sheet 101.The conducting terminal Surely there are first direction X, second direction Y and the third direction Z vertical with the first direction X and second direction Y.

It please refers to Fig.1 and there is upper surface 11 and lower surface 12, the terminal groove 13 to run through institute for Fig. 4, the insulating body 1 State upper and lower surface 11,12；In conjunction with Fig. 2 and Fig. 3, the conducting terminal 2 includes the first main part 21, the second main part 22, from institute The elastic portion 23 that the bending of 21 upper end of the first main part extends, the weld part 24 extended from 22 lower end of the second main part are stated, the One, the second main part 21,22 is fixed in terminal groove 13, on the second direction Y and third direction Z, first main body The side in portion 21, which is connected between second main part 22 and first main part, 21 and second main part 22, forms a folder Angle, most preferably 90 degree of the angle, is connected between first main part 21 and the second main part 22 by an interconnecting piece 25, institute Interconnecting piece 25 is stated close to the weld part 24.

It is connected by a bending part 26 between first main part 21 and the elastic portion 23, the bending part 26 is certainly First main part is upwards and forward fold extends, and the elastic portion 23 includes tilting to prolong upwards from first main part 21 The flat part 231 stretched, the contact site 232 for bending extension further up from the flat part 231, the cross of the flat part 231 It is more than the transverse width of the contact site 232 and bending part 26 to width, the flat part 231 is in the small shape broad in the middle in both ends Shape, which part are not protruded out to two outsides so that the conducting terminal 2 has enough arm strengths, the width of the flat part 231 big In the contact site 232 and the width of bending part 26, when the chip module 200 suppresses the electric connector 100 downwards, institute That states that conducting terminal 2 can stablize reaches electric connection with the chip module 200, effectively prevents connecing for conventional conductive terminal Contact portion is single reduced upwards from the root or the same size and lead to conducting terminal and fracture easily occur or elasticity is inadequate Rough sledding.

Fig. 2 and Fig. 3 are please referred to, first main part 21 includes vertical portion 211 and upwardly extended from the vertical portion 211 Subtract narrow portion 212, the width of the bending part 26 subtracts the of same size of narrow portion 212 with described, and the width for subtracting narrow portion 212 is small Width in the vertical portion 211, the substantially trapezoidal shape in the vertical portion 211, which, which is connected to, described subtracts narrow portion 212, described to subtract that narrow portion 212 is rectangular, one end of the rectangle is connected to the trapezoidal bevel edge, and the bevel edge subtract described in it is narrow 212 extension of portion and make the vertical portion 211 be wider than it is described subtract narrow portion 212, be arranged with this, mainly due to the vertical portion 211 are equipped with the longer extension extended downwardly to adjust impedance, but the overall width of the first main part 21 can be made wider, On the direction upwardly extended, reduce the width of first main part 21, can to connect chip dies in electric connector 100 During block 200, due to the terminal it is more and more in the case of, ensure terminal bottom-resistive adjust requirement under, will not In the power for so that there is the larger resistance chip module 200 to suppress downwards for the upside of the conducting terminal 2, and then ensure that The elastic demand when top of the conducting terminal 2 is electrically connected with the chip module.

Second main part 22 includes the extension 222 being located above and consolidates from what the extension 222 extended downwardly Determine portion 221, the width of the fixed part 221 is more than the width of the extension 222.On the first direction X, described second The lower end of main part 22 is formed down the first branch 223 and the second branch 224 being separated from each other, and the weld part 24 is described in First branch 223 continues to extend and formed, and a slit 20 is formed between first branch 223 and second branch 224, institute Stating slit 20, there is a transverse width, the numerical value of the transverse width to be located between 0.1~0.25mm (millimeter), described second point There is branch 224 lower-upper length, the numerical value of the lower-upper length to be located between 0.25~0.4mm.First main part 21, Interconnecting piece 25 and the second branch 224 have lower face a1, a2, a3, the lower face a1 connections of first main part 21 The lower face a2 in portion 25 is extended downwardly, and the lower face a2 of the lower face a3 of second branch 224 interconnecting piece 25 is downward Extend.The roof of the slit 20 and the lower face a2 of interconnecting piece 25 are horizontally aligned to each other, the lower end of first main part 21 Face a1 and the lower face a3 of the second branch 224 are horizontally aligned to each other, the lower face of second branch, 224 and first main part 21 A3, a1 are above the top surface of the weld part 24.First main part, 21 and second main part 22 is far from the interconnecting piece 25 Side be equipped with the holding parts that can be retained to the insulating body 1, the holding parts include being located at first main part 21 On the first holding parts 213 and the second holding parts 225 on second main part 22, the insulating body 1 be equipped with point Cooperation holding slot (not shown) is not held with first holding parts, 213 and second holding parts 225.Second branch 224 is remote Side from first branch 223 in the vertical direction with 225 flush of the second holding parts.

Refering to Figure 1, when the chip module 200 is assembled to the electric connector 100, by the pressing plate 102 Compacting is fixed to the periphery of the chip module 200, then by the rocking bar 103 on the reinforced sheet 101, with this by the chip It realizes and is electrically connected between module 200 and the electric connector 100.At this point, due to increasing 2 bottom section of the conducting terminal Size so that the downside of the conducting terminal 2 has lower impedance, further, under second main part 22 Fang Peishe the first branches 223 and the second branch 224, a slit is formed between first branch 223 and second branch 224 20, there is the slit 20 transverse width, the numerical value of the transverse width to be located between 0.1~0.25mm, described second point There is branch 224 lower-upper length, the numerical value of the lower-upper length to be located between 0.25~0.4mm, can make described be electrically connected The overall impedance for connecing device 100 is smaller, optimal, and the transverse width of the slit 20 is 0.12mm, the length of second branch 224 When degree is 0.3mm, the overall impedance of the electric connector 100 is minimum.

Thereby, when the chip module 200 of the utility model is assembled to the electric connector 100, the conducting terminal 2 Flat part 231 it is parallel with the upper surface 11 of the insulating body 1, can both make the chip module 200 downwards suppress When the power that compresses of the entire terminal module become more balanced, it is also possible that terminal bottom end is equipped with several branches, extend The length of the terminal, so that the horizontal spacing between the bottom of adjacent conductive terminal 2 becomes smaller, so that being entirely electrically connected The impedance for connecing device 100 becomes smaller, to promote the high-frequency transmission performance of the electric connector 100.

The foregoing is merely some embodiments of the utility model, the embodiment being not all of, the common skill in this field Any equivalent variation that art personnel take technical solutions of the utility model by reading the utility model specification is The claim of the utility model is covered.

Claims

1. a kind of electric connector comprising the conducting end that there is the insulating body of several terminal grooves and be housed in the terminal groove Son；There is the insulating body upper surface and lower surface, the terminal groove to run through the upper and lower surface；The conducting end attached bag It includes the first main part for being fixed on terminal groove and the second main part, be folded upward at the bullet of extension from first main body upper end Property portion and weld part, first main part and the second main part are connected to each other by an interconnecting piece；It is characterized in that：It is described The lower end of second main part is formed with the first branch for being separated from each other and the second branch, the weld part from first branch after It reneing and stretches and formed, form a slit between first branch and second branch, the slit has a transverse width, The numerical value of the transverse width is located between 0.1~0.25mm.

2. electric connector as described in claim 1, it is characterised in that：First main part, interconnecting piece and the second branch tool There is lower face, the lower face of the lower face interconnecting piece of first main part extends downwardly, under second branch The lower face of the end face interconnecting piece extends downwardly.

3. electric connector as described in claim 1, it is characterised in that：Second branch has a lower-upper length, this is upper and lower The numerical value of length is located between 0.25~0.4mm.

4. electric connector as claimed in claim 2, it is characterised in that：The lower face of the roof of the slit and the interconnecting piece It is horizontally aligned to each other.

5. electric connector as claimed in claim 2, it is characterised in that：The lower face of first main part and the second branch Lower face is horizontally aligned to each other.

6. electric connector as claimed in claim 2, it is characterised in that：The lower face of second branch and the first main part is equal Higher than the weld part.

7. electric connector as described in claim 1, it is characterised in that：First main part includes vertical portion and is erected from described What straight portion upwardly extended subtracts narrow portion, and the width for subtracting narrow portion is less than the width of the vertical portion, and second main part includes The width of the extension being located above and the fixed part extended downwardly from the extension, the fixed part is more than the extension Width.

8. electric connector as claimed in claim 7, it is characterised in that：The elastic portion includes upward from first main part Bend the flat part extended and the contact site extended further up from the flat part, the elastic portion and first main body It is connected by a bending part between portion, the width of the flat part is more than the width of the contact site and bending part, described curved The width of folding part subtracts the of same size of narrow portion with described.

9. electric connector as claimed in claim 8, it is characterised in that：The flat part in the form of narrowing toward each end is broad in the middle, It is protruded to both sides periphery at middle part.

10. electric connector as claimed in claim 9, it is characterised in that：First main part and the second main part are remote at it Side from the interconnecting piece is equipped with holding parts, side of second branch far from first branch upwards with it is described solid It is concordant to hold portion.