CN101771226B

CN101771226B - Electric connector

Info

Publication number: CN101771226B
Application number: CN2009103000642A
Authority: CN
Inventors: 何家勇; 郑启升
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: 2009-01-05
Filing date: 2009-01-05
Publication date: 2011-12-14
Anticipated expiration: 2029-01-05
Also published as: JP2010157505A; CN101771226A; JP5174800B2

Abstract

The invention discloses an electric connector, comprising an insulating body and a conductive terminal arranged on the insulating body. The conductive terminals comprise a plurality of grounded terminals and a plurality of pairs of differential signal terminals, wherein each grounded terminal is provided with a first welding part extending out of the insulating body, each differential signal terminal is provided with a second welding part extending out of the insulating body, and the first, second and third welding parts are arranged into one row, and the first welding part of two grounded terminals is arranged between the second welding parts adjacent to the two pairs of differential signal terminals, thereby the shielding effect between the two adjacent pairs of differential signal terminals is increased, the crosstalk between the differential signal terminals is reduced, and the signal transmission quality of the electric connector is improved.

Description

Electric connector

[technical field]

The present invention is relevant a kind of electric connector, relates in particular to a kind of electric connector with differential signal transmission.

[background technology]

Electric connector uses conducting terminal to provide the signal between the electronic equipment to connect.Usually, conducting terminal is very approaching at interval, makes " crosstalking " to occur between the adjacent conductive terminal.The electric field that mixes causes a conducting terminal to occur crosstalking when induced electricity disturbs in the adjacent conductive terminal, thereby destroys the integrality of signal.Along with the miniaturization of electronic equipment and high-speed, the telecommunication of high signal integrity becomes more general, and this is crosstalked reduces to become a key factor in the connector design.

A kind of normally used technology that is used to reduce to crosstalk is between the adjacent signals terminal earth terminal to be set, a kind of electric connector of 1937324A number exposure is disclosed as Chinese invention patent, this electric connector is in order to the carry high frequency digital signal, it comprises insulating body, the shielding casing of conducting terminal and coated insulation body, insulating body comprises base portion and the tongue piece that protrudes out forward from base portion, each conducting terminal comprises arranges the weld part of being located at the lip-deep contact site of tongue piece and extending insulating body, all weld parts are arranged into a row, conducting terminal comprises earth terminal and some to difference signal terminal, yet, only be provided with the weld part of an earth terminal between the weld part of adjacent two pairs of difference signal terminal of this electric connector, make and crosstalk still very highly between adjacent two pairs of difference signal terminal, so that influenced the signal transmitting quality of this electric connector.

So, be necessary to design a kind of electric connector to solve the problems of the technologies described above.

[summary of the invention]

Main purpose of the present invention is to provide a kind of electric connector that improves the high-frequency signal transmission quality that has.

For reaching above-mentioned utility model purpose, the present invention adopts following technical scheme: a kind of electric connector, be provided with the spliced eye of accommodating banjo, it comprises: insulating body and be located at conducting terminal on the insulating body, described insulating body comprises base portion and protrudes into tongue piece in the spliced eye forward from base portion, conducting terminal comprises some earth terminals and some to difference signal terminal, each earth terminal comprises and being exposed in the spliced eye in order to contact site that connects banjo and first weld part that extends insulating body, each difference signal terminal comprises and being exposed in the spliced eye in order to contact site that connects banjo and second weld part that extends insulating body, two contact sites of at least one pair of difference signal terminal are alignment mutually on the Width of tongue piece, described first, second weld part is arranged in a row, and wherein first weld part of two earth terminals is arranged between second weld part of adjacent two pairs of difference signal terminal.

Compared to prior art, electric connector of the present invention is by being provided with first weld part of two earth terminals between second weld part of two pairs of difference signal terminal, increased the shield effectiveness between adjacent two pairs of difference signal terminal, reduce crosstalking between these two pairs of difference signal terminal, improved the signal transmitting quality of electric connector.

[description of drawings]

Fig. 1 is the stereogram of electric connector of the present invention and circuit board.

Fig. 2 is the stereogram of electric connector of the present invention.

Fig. 3 is the part three-dimensional exploded view of electric connector of the present invention.

Fig. 4 is electric connector another part three-dimensional exploded view of the present invention.

Fig. 5 is the three-dimensional exploded view of electric connector of the present invention.

Fig. 6 is another angle three-dimensional exploded view of electric connector of the present invention.

Fig. 7 is the schematic diagram of arranging of electric connector conducting terminal of the present invention.

[embodiment]

See also Fig. 1 to shown in Figure 7, electric connector 100 of the present invention is the USB socket connector, peg graft in order to be installed on the circuit board 200 for USB 2.0A type banjo and USB 3.0A type banjo (not shown), it comprises: insulating body 1, be located at the plurality of conductive terminals 2 on the insulating body 1 and the metal shielding casing 3 of coated insulation body 1.

Insulating body 1 comprises first body 11 and is fixed in second body 12 of first body, 11 bottoms.First body 11 comprises first base portion 13 and the tongue piece 14 that protrudes out forward from first base portion 13, first base portion 13 comprises rearward end 131, the both sides 132 of extending forward from two ends, rearward end 131 left and right sides respectively and is arranged with holding tank 133 between rearward end 131 and both sides 132, holding tank 133 runs through first base portion 13 forward, and the inboard of both sides 132 is provided with first holddown groove 134 that extends vertically downward and second holddown groove 135 that extends second base portion 13 from first holddown groove, 134 bottom levels forward.Tongue piece 14 bottom surfaces are provided with some location notchs 141 and accepting groove 142, and location notch 141 is located at accepting groove 142 the place aheads and is spaced apart with accepting groove 142.

Second body 12 comprises second base portion 15 that is contained in first body, 11 holding tanks 133 and the flange 16 that protrudes out forward from second base portion, 15 tops, second base portion, 15 both sides are provided with and first, second holddown groove 134,135 projection 151 of buckle mutually, this two projection 151 is set to structure of right angle tyoe respectively, the bottom, some holding slots 152, the second base portions 15 rear ends of running through second base portion 15 before and after second base portion 15 is provided with also is provided with the horizontal fin 153 concordant with its bottom surface.The tongue piece 14 of the flange 16 and first body 11 is parallel to each other, and the both sides of flange 16 are provided with the raised line 161 that is pressed on first body, 11 first base portions, 13 front end faces.

Conducting terminal 2 includes the first terminal group 21 and second terminal group, 22, the second terminal group 22 are USB 2.0A type socket connector terminal, in order to connect USB 2.0 type banjos; First,

second terminal group

21,22 common formation USB 3.0A type socket connector terminals are in order to connect USB 3.0A type banjo.The first terminal group 21 is set to five, it comprise first pair of difference signal terminal 211 and the second pair of difference signal terminal 212 and at first earth terminal, 213, the first earth terminals 213 between these two pairs of difference signal terminal 211,212 in order to reduce crosstalking between first pair and the second pair of difference signal terminal 211,212.The first terminal group 21 comprises first contact site 214 of being located at front end, first holding parts 215 that links to each other with first contact site 214, bend first connecting portion 216 of extension downwards from first holding parts, 215 rear ends and from the horizontally extending backward weld part 217,218 in first connecting portion, 216 bottoms, and weld part 217,218 comprises to be located at first weld part 217 on the earth terminal 213 and to be located at second weld part 218 on the difference signal terminal 211,212.Wherein, first contact site 214 is set to plate-like structure and is contained in the location notch 141 of tongue piece 14, first connecting portion 216 is skew laterally respectively also, thereby increased weld part 217, spacing between 218, first holding parts 215 and first connecting portion, the 216 common modes that adopt edge to bury moulding are arranged on first base portion 13 of first body 11, first, second weld part 217,218 extend from first base portion, 13 bottom surfaces, first connecting portion 216 on first earth terminal 213 is a tuning fork structure, make second weld part 218 from this first connecting portion 216 extend to two promptly a pair of.

Second terminal group 22 is identical with four butt of USB 2.0 type connectors, promptly is arranged in order to be power supply terminal 220, the 3rd pair of difference signal terminal 221 (being negative signal terminal and positive signal terminal), second earth terminal 223.Second terminal group 22 comprises second contact site 224, second holding parts 225, be connected in elastic portion 222 between second contact site 221 and second holding parts 225, bend second connecting portion 226 of extension downwards and from the horizontally extending backward weld part 227,228,229 in second connecting portion, 226 bottoms from second holding parts, 225 1 ends.Wherein, second contact site 224 be set to circular-arc elastic construction and protrude from first body, 11 tongue pieces 14 downwards and with the setting of on fore-and-aft direction, staggering of first contact site 214, first, second contact site 214,224 are provided with and are positioned at differing heights on the thickness directions of tongue piece 14 staggering on the direction of insertion of banjo, and each is to difference signal terminal 211,212,221 two contact sites 214,224 respectively at left and right directions promptly in the setting of aliging mutually of the Width of tongue piece 14, elastic portion 222 is suspended in tongue piece 14 accepting grooves 142, second holding parts 225 is immobilizated in second body, 12 holding slots 152, second earth terminal 223 also is obliquely installed to the inside with second connecting portion 226 of power supply terminal 220, second connecting portion 226 is held between the rearward end 131 of first body 11 and second body, 12 fins 153 fixing, the weld part 227 of second terminal group 22,228,229 comprise first weld part of being located on second earth terminal 223 227, second weld part 228 on the 3rd pair of difference signal terminal 221 and the 3rd weld part 229 on the power supply terminal 220.

Second terminal 227,228,229 extends second body 12 and becomes a row with weld part 217,218 overall alignment of the first terminal group 21, and first, second second weld part 218 to differential signal 211,212 lays respectively at the two ends outermost locations.The weld part 217 of the first terminal group 21,218 are arranged as promptly two first groups of separately two groups, and the weld part 227 of second terminal group 22,228,229 only are arranged as one group promptly second group, two first bond pads portions 217,218 lay respectively at this second bond pads portion 227,228,229 the two relative outsides, two first weld parts 217 of first earth terminal 213 lay respectively at first weld part 227 of second earth terminal 223, the outside of the 3rd weld part 229 of power supply terminal 220 and with this first, the 3rd weld part 227,229 is adjacent, make and win, the 3rd difference signal terminal 211, have first between 221, second earth terminal 213,223 two first weld parts 217,227, thereby increased by first, the 3rd pair of difference signal terminal 211, shield effectiveness between 221, reduced by first, the 3rd pair of difference signal terminal 211, crosstalking between 221 improved the signal transmitting quality of electric connector 100.Be placed with the 3rd weld part 229 of power supply terminal 220 and first weld part 217 of first earth terminal 213 between second, third second weld part 218,228 to difference signal terminal 212,2221, also increased second, third to the shield effectiveness between the difference signal terminal 212,221, reduce second, third to crosstalking between the difference signal terminal 212,221, further improved the signal transmitting quality of electric connector 100.

In addition, because first earth terminal 213 is provided with two first weld parts 217, make and win, the 3rd pair of difference signal terminal 211,221 second weld part 218, reach second between 228, the 3rd pair of difference signal terminal 212,221 second weld part 218, all be placed with first weld part 217 of first earth terminal 213 between 228, thereby increased by first, second, the 3rd pair of difference signal terminal 211,212, shield effectiveness between 221, reduced difference signal terminal 211,212, crosstalking between 221, help improving the signal transmitting quality of electric connector 100, first earth terminal 213 is equivalent to the effect of two earth terminals, simplify the structure of conducting terminal 2, helped saving the space.

In sum, first, second, third weld part 217,218,227,228,229 of electric connector 100 conducting terminals 2 of the present invention is arranged in order first weld part 217 of the 3rd weld part 229, first earth terminal 213 of second weld part 228, the power supply terminal 220 of first weld part 227 into: second weld part 218 of first pair of difference signal terminal 211, first weld part 217 of first earth terminal 213, second earth terminal 223, the 3rd pair of difference signal terminal 221, second weld part 218 of second pair of difference signal terminal 212 from left to right.

Shielding casing 3 is coated on insulating body 1 outside, be formed with the spliced eye 30 of accommodating banjo between shielding casing 3 and tongue piece 14, first, second contact site 214,224, shielding casing 3 comprises roof 31, the diapire 32 relative with roof 31, be connected in the two side 33 between roof 31 and the diapire 32 and the bonnet 34 of coated insulation body 1 rear end.The flange 16 of second body 12 upwards is supported on the diapire 32, and roof 31, diapire 32 and two side 33 are respectively equipped with the shell fragment 35 that extends in the spliced eye 30, and two side 33 is extended with the installation foot 330 that is immobilizated on the circuit board 200 downwards.

In the present embodiment, the weld part 217,218,227,228,229 of conducting terminal 2 is set to pasting board formula structure.In other embodiments, the weld part of conducting terminal also can be set to threading formula structure, and the first terminal group also can be fixed on first body by inserted mode.In addition, the 3rd weld part of power supply terminal can also with the first weld part mutual alternative position of first earth terminal, so also can reach purpose of the present invention.

Claims

1. electric connector, be provided with the spliced eye of accommodating banjo, it comprises: insulating body and be located at conducting terminal on the insulating body, described insulating body comprises base portion and protrudes into tongue piece in the spliced eye forward from base portion, conducting terminal comprises some earth terminals and some to difference signal terminal, each earth terminal comprises and being exposed in the spliced eye in order to contact site that connects banjo and first weld part that extends insulating body, each difference signal terminal comprises and being exposed in the spliced eye in order to contact site that connects banjo and second weld part that extends insulating body, two contact sites of at least one pair of difference signal terminal are alignment mutually on the Width of tongue piece, described first, second weld part is arranged in a row, and it is characterized in that: wherein first weld part of two earth terminals is arranged between second weld part of adjacent two pairs of difference signal terminal.

2. electric connector as claimed in claim 1 is characterized in that: described second weld part also is arranged in the outermost locations at described row two ends.

3. electric connector as claimed in claim 1 is characterized in that: the contact site of described earth terminal and difference signal terminal all is arranged in the same side of tongue piece.

4. electric connector as claimed in claim 1, it is characterized in that: described conducting terminal also comprises power supply terminal, described power supply terminal comprises that row is located on the tongue piece in order to contact site that connects banjo and the 3rd weld part that extends insulating body, described earth terminal comprises first, second earth terminal, difference signal terminal comprises first, second, the 3rd pair of difference signal terminal, described conducting terminal comprises first, second terminal group, first, second terminal group constitutes USB 3.0A type socket connector terminal jointly, in order to connect USB 3.0A type banjo, second terminal group is a USB 2.0A type socket connector terminal, in order to connect USB 2.0A type banjo, the first terminal group is arranged in order in spliced eye and is described first pair of difference signal terminal, first earth terminal, second pair of difference signal terminal, second terminal group are arranged in order in spliced eye and are described second earth terminal, the 3rd pair of difference signal terminal, power supply terminal.

5. electric connector as claimed in claim 4, it is characterized in that: described first weld part of described first earth terminal is set to a pair of, be placed with at least between this two first weld part in first weld part of second weld part, the 3rd weld part or other earth terminals at least one of them.

6. electric connector as claimed in claim 4, it is characterized in that: first, second weld part of described the first terminal group is arranged the outside, two ends of all first, second, third weld parts of being located at second terminal group respectively, and first, second, third weld part of second terminal group is adjacent respectively arranges.

7. electric connector as claimed in claim 4, it is characterized in that: described contact site comprises to be located at first contact site on the first terminal group and to be located at second contact site on second terminal group, described first contact site is set to plate-like structure, second contact site is set to elastic construction, described first, second contact site is located at tongue piece the same side jointly along the setting of staggering on the grafting direction of banjo, and first contact site is positioned at different height with second contact site on the thickness direction of tongue piece.

8. electric connector as claimed in claim 4, it is characterized in that: described the first terminal group comprises first holding parts that links to each other with contact site and first connecting portion that bends extension from first holding parts downward vertically, first, second weld part of the first terminal group be from first connecting portion backward horizontal-extending form, first connecting portion of first earth terminal is set to tuning fork shape structure, make first weld part of the earth terminal of winning be set to two from the extension of first connecting portion, all weld parts of second terminal group are arranged between two first weld parts of first earth terminal.

9. electric connector as claimed in claim 8, it is characterized in that: described second terminal group comprises second holding parts that links to each other with contact site and second connecting portion that bends extension from second holding parts downward vertically, first, second, third weld part of second terminal group be from second connecting portion backward horizontal-extending form, first connecting portion is obliquely installed laterally, and second connecting portion is obliquely installed to the inside.

10. electric connector as claimed in claim 4, it is characterized in that: described electric connector also comprises the shielding casing of coated insulation body, shielding casing and tongue piece, be formed with spliced eye between the contact site, in order to accommodate USB 2.0A type or USB 3.0A type banjo, described first, second, the 3rd weld part is arranged in a row and is arranged in order and is second weld part of first pair of difference signal terminal, first weld part of first earth terminal, first weld part of second earth terminal, second weld part of the 3rd pair of difference signal terminal, the 3rd weld part of power supply terminal, first weld part of first earth terminal, second weld part of second pair of difference signal terminal; Perhaps be arranged in order and be first weld part of first weld part of second weld part of first pair of difference signal terminal, first weld part of first earth terminal, second earth terminal, second weld part of the 3rd pair of difference signal terminal, first earth terminal, the 3rd weld part of power supply terminal, second weld part of second pair of difference signal terminal.