TW201027848A - Electrical connector - Google Patents

Abstract

An electrical card connector includes an insulative housing, and a plurality of terminals received into the insulative housing. The terminals include a plurality of grounding terminals and pairs of differential terminals. The grounding terminals each has a first soldering tail extending out of the insulative housing. The differential terminals each has a second soldering tail extending out of the insulative housing. The first and the second soldering tails are arranged in one row. Two first grounding tails of two grounding terminals are disposed between two second tails of two pair of the differential terminals. Thus crosstalk of the terminals would be decreased and the transmission speed of the electrical connector would be increased.

Description

201027848 VI. Description of the invention: * [Technical field to which the invention pertains] _ This is an electrical connector, and more particularly to an electrical connector having differential signal transmission. [Prior Art] An electrical connector provides a signal connection between electronic devices through conductive terminals. Typically, the conductive terminals are spaced so closely that "crosstalk" occurs between adjacent conductive terminals. The mixed electric field causes crosstalk when a conductive terminal induces electrical interference in adjacent conductive terminals, thereby destroying the integrity of the signal. With the miniaturization and high speed of electronic devices, electrical communication with high signal integrity has become more common. The reduction of this crosstalk ® has become an important factor in connector design. A commonly used technique for reducing crosstalk is to provide a grounding terminal between adjacent signal terminals, such as an electrical connector disclosed in Chinese Patent Laid-Open No. 1937324A, which is used to transmit high frequency digital signals. The utility model comprises an insulating body, a conductive terminal and a shielding shell covering the insulating body. The insulating body comprises a base and a tongue projecting forward from the base. Each of the conductive terminals comprises a contact portion arranged on the surface of the tongue and extends out of the insulation. In the soldering portion of the body, all the soldering portions are arranged in a row, the conductive terminals include a grounding terminal and a plurality of pairs of differential signal terminals, however, only one grounding terminal is provided between the soldering portions of the adjacent two pairs of differential signal terminals of the electrical connector The soldering portion makes the crosstalk between the adjacent two pairs of differential signal terminals still high, so as to affect the signal transmission quality of the electrical connector. Therefore, it is necessary to design an electrical connector to solve the above technical problems. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide an electrical connector with improved signal transmission. - Γ Γ ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The tongue piece and the conductive terminal are arranged on the insulative body, and the object includes a plurality of grounding mu 3 201027848 . , the connecting plug: the two contact parts of the wide-to-differential signal terminal touching the tongue--the complex Φ mutual Aligning the first and second soldering portions arranged in a terminal (four)-the soldering portion is arranged in the adjacent (four) differential signal ο, the purpose of which can also be achieved by the following technical solutions: "electrical connection; two = docking plug" The insertion hole comprises: an insulating body, = a tongue disposed in the insulating extension plug; and a plurality of conductive terminals, the signal receiving end portion comprising the plurality of grounding terminals and the plurality of pairs of differentially connected contacts and Insulation and the butt plug terminal are insulated from the first soldering portion of the 11th from the hf, the differential signal is insulated from the contact portion and the extension row of the insulator and the butt plug, and the first welding is performed. And the first and the first Welding a first portion arranged in a welded portion must stick early ground terminal between the second weld portion two pairs of differential signal terminals disposed in adjacent rows. The purpose of the creation can also be achieved by the following technical solution: an electrical connection - X has a plug hole for receiving the mating plug, the method includes: the insulating system has a tongue extending into the plug hole; and the plurality of conductive terminal sets The conductive terminal includes a first and a second terminal group, and the first and second end groups include a ground terminal and a differential signal terminal disposed in a pair. The ground terminal and the differential signal terminal include Exposed to the contact portion of the plug hole for connecting with the mating plug and the solder portion extending out of the insulative housing, at least part of the contact portion is arranged on the tongue, the soldering portions are arranged in a row, wherein the soldering of the two ground terminals .卩 is located between the solder joints of two adjacent pairs of differential terminals. Compared with the prior art, the present invention has the following enhancement effects: by providing a soldering portion with two grounding terminals between the soldering portions of the two pairs of differential signal terminals, the mask effect between the adjacent two pairs of differential signal terminals is increased. The crosstalk between the two pairs of differential signal terminals is reduced, and the signal transmission quality of the electrical connector is improved. 201027848 [Embodiment] As shown in the first to seventh figures, the electrical connector 1 of the present invention is a coffee socket connection, and the device is mounted on the circuit board 200 for the USB2OA type docking plug and the USB3〇a. The docking plug (not shown) is plugged in. The utility model comprises: a plurality of conductive terminals 2 disposed on the insulating body ι and an metal shielding shell 3 covering the insulating body 。.

The insulative housing 1 includes a first body η and a second body u fixed to the bottom of the first body n. The first body portion 13 includes a first base portion 13 and a tongue projecting forwardly from the first base portion 13. The first base portion 13 includes a rear end portion (3), two side portions 132 and a concave portion extending forward from the left and right ends of the rear end portion 131, respectively. The receiving groove 133 is disposed between the rear end portion 131 and the two side portions 132. The receiving groove 133 extends forwardly out of the first base portion 13. The inner sides of the two side portions 132 are provided with a first-solid reading 134 extending vertically downward and The second end of the first-g) slot 34 extends horizontally forward from the second base slot 135 of the second base. The bottom surface of the tongue piece 14 is provided with a plurality of positioning grooves 141 and a receiving groove (4). The positioning groove 141 is disposed in front of the receiving groove 142 and spaced apart from the receiving groove 142. The second body 12 includes a second base portion 15 received in the first body u receiving groove 133 and a top protruding convex plate 16 from the second base portion 15. The second base portion 15 is provided with first and second fixing grooves on both sides. 134, 135 phase buckle bumps 15 the two bumps 151 are respectively arranged in a right angle type structure. The second base portion 15 is provided with front and rear; the plurality of holding grooves 152 of the second base portion 15 are attached to the rear end of the second base portion 15 There is also a lateral rib 53 which is flush with the bottom surface. The convex plate 16 and the tongue piece 14 of the first body η are parallel to each other, and the convex plates 16 are provided with ribs 161 disposed on the front end surface of the first base portion 13 of the first body 11. The conductive terminal 2 includes a first terminal group 21 and a second terminal group 22, and the second terminal group 22 is a 1) ugly 2.0-input socket connector terminal for connecting a 1882 type butt plug; The two terminal groups 21 and 22 together form a USB 3.0 A type socket connector terminal for connecting the USB 3·0 A type mating plug. The first terminal group 21 is configured as five 'which includes a first pair of differential signal terminals 211 and a second pair of differential signal terminals 212 and a first ground terminal 2 3 between the two pairs of differential signal terminals 211, 212, The first ground terminal 213 is configured to reduce crosstalk between the first pair and the second pair of differential signal terminals 2n, 212. The first terminal group 21 includes a first contact portion 214 disposed at the front end, a first holding portion 215 connected to the first contact portion 214, and a first connecting portion 216 extending downward from the rear end of the first holding portion 215 and The soldering portions 217 and 218 extending horizontally from the bottom end of the first connecting portion 216, the soldering portions 217 and 201027848 218 include a first soldering portion 217 provided on the grounding terminal 213 and a first portion disposed on the differential signal terminal 211, 212 Second welding portion 218. The first contact portion 214 is disposed in a flat structure and is received in the positioning groove 141 of the tongue piece 14 , and the first connecting portion 216 is also respectively offset outwardly to increase the spacing between the welded portions 217 and 218 . The first holding portion 215 is disposed on the first body U by insert molding together with the first connecting portion 2] 6. The first and second soldering portions 217 and 218 extend from the bottom surface of the first base portion 13 and are grounded. The first connecting portion 216 on the terminal 213 is a tuning fork structure such that the second welded portion 218 extends from the first connecting portion 216 into two, that is, a pair. The second terminal group 22 and the USB 2.0 type connector have the same four terminals, that is, the power terminal 220 and the third pair of differential signal terminals 221 (i.e., the negative signal terminal and the positive signal terminal) are sequentially arranged. The second terminal group 22 includes a second contact portion 224, a second holding portion 225, and an elastic portion connected between the second contact portion 221 and the second holding portion, and the end portion of the second holding portion 225 is bent downward. The second connecting portion 2% and the welded portions 227, 228, 229 extending horizontally rearward from the bottom end of the second connecting portion 226. The second contact 邛 224 is disposed in an arc-shaped elastic structure and is disposed downwardly from the first body u and the third contact portion 214 in the front-rear direction. The first and second contact portions 214 are disposed. 224 are staggered in the insertion direction of the mating plug and at different heights in the thickness direction of the tongue 14, and the two contact portions 214 of the pair of differential signal terminals 2n, 212, 221 are respectively in the left and right direction, that is, the tongue The width direction of the sheets is aligned with each other, and the elastic portion is arranged to be suspended in the receiving groove 142 of the tongue piece 14. The second holding portion 225 is retained in the holding groove of the second body 12, and the second grounding terminal 223 and the second terminal of the power terminal 22 are The connecting portion is still disposed inwardly, and the second connecting portion is clamped between the rear end portion ι3 of the first body η and the second 12 rib 153 to fix the 'welding portion of the first terminal group 22, _ The first soldering portion on 223 is also the third soldering portion 228 on the third pair of differential signal terminals 22i and the third soldering portion 229 in the power supply terminal. The two terminals 227, 228, and 229 extend out of the second body 12 and are arranged in a row as a whole. The first and second pairs of differential signals 211, 212 2^7 are located at the outermost positions at both ends. The welded portions of the first terminal group 21, such as 228, 229, are arranged only in a group, that is, the second group / 6 201027848 'is located on the opposite sides of the second group of welded milk, 228, 229, the first grounding terminal • 213 The two first soldering portions 217 are respectively located outside the first soldering portion 227 of the second grounding terminal 223, the third soldering portion 229 of the power source terminal 220, and adjacent to the first and third soldering portions 227, 229. First and third differential signal terminals 2 Π 221 have first and second grounding portions 213, 223 between the first soldering portions 217, 227, thereby increasing the relationship between the first and second pairs of differential signal terminals 21 The mask effect reduces the crosstalk between the first and third pairs of differential signal terminals 211 and 221, and improves the signal transmission (10) quality of the electrical connector 1〇〇. The third soldering portion 229 of the power terminal 220 and the first soldering portion 217 of the first grounding terminal 213 are disposed between the second soldering portions 218 and 228 of the first and second pairs of differential signal terminals 212 and 2221, and the first soldering portion 217 of the first grounding terminal 213 is also added. The 〇 mask effect between the second and third pairs of differential signal terminals 212, 221 reduces the crosstalk between the second and third pairs of differential signal terminals 212, 221, further improving the signal transmission of the electrical connector 100. quality. In addition, since the first ground terminal 213 is provided with two first soldering portions 217, the second soldering portions 218 and 228 of the first and third pairs of differential signal terminals 21 and 221 and the second and third pairs of differential signals are provided. The first soldering portion 217 of the first grounding terminal 213 is disposed between the second soldering portions 218 and 228 of the terminals 212 and 221, thereby adding the first, second, and third pairs of differential signal terminals 211, 212, and 221 The effect of the mask between the differential signal terminals 21, 212, 221 is reduced to improve the signal transmission quality of the electrical connector ι, the first ground terminal 213 is equivalent to the effect of the two ground terminals, The n structure of the conductive terminal 2 is simplified, which is advantageous for saving space. In summary, the first, second, and third soldering portions 217, 218, 227, 228, and 229 of the conductive terminal 2 of the electrical connector 100 of the present invention are arranged from left to right in order from the first pair of differential signal terminals 211. The second soldering portion 218, the first soldering portion 217 of the first grounding terminal 213, the first soldering portion 227 of the second grounding terminal 223, the second soldering portion 228 of the third pair of differential signal terminals 221, and the third of the power source terminal 220 The soldering portion 229, the first soldering portion 217 of the first ground terminal 213, and the second soldering portion 218 of the second pair of differential signal terminals 212. The shielding case 3 is covered on the outside of the insulative housing 1. The shielding housing 3 and the tongue piece 14 and the first and second contact portions 214 and 224 are formed with a receiving hole 30 for receiving the mating plug. The shielding housing 3 includes a top. The wall 31 has a bottom wall 32 opposite to the top wall 3, two side walls 33 connected between the top wall 31 and the bottom wall 32, and a rear cover 34 covering the rear end of the insulating body 1. The convex plate 7 of the second body 12 201027848 is provided with a top wall 31, a bottom wall 32 and two side walls 33 respectively provided with an extended mounting plate 35. The two side walls 33 extend downwardly to be held in the circuit board. In the embodiment, the tandem portions 217, 218, 227, 228, and 229 of the conductive terminal 2 are of a type. In other embodiments, the conductive terminal can also be configured as a through-plate structure, and the first terminal group can also be fixed to the first body by inserting. The second soldering portion of the power supply terminal can also be replaced with the first soldering portion of the first grounding terminal. Thus, the object of the present invention can also be achieved.

In summary, the creation of the Confucian and the invention patent requirements, Mai filed a patent application. However, μ is the essence of the creation of the book, and the above-mentioned examples are limited to those who are familiar with the skill of the case, and the equivalent modifications or changes in the spirit of this law should be covered in the following Within the scope of the patent application. [Simple description of the diagram] The first picture is a schematic diagram of the original electrical connector and the mother board. The second figure is a perspective view of the present electrical connector. The third figure is a partial exploded view of the present electrical connector. The fourth figure is an exploded perspective view of another part of the present electrical connector. The fifth figure is an exploded perspective view of the present electrical connector. The sixth figure is another perspective exploded view of the present electrical connector. The seventh figure is a schematic diagram of the arrangement of the conductive terminals of the present electrical connector. [Main component symbol description] Electrical connector 100 Insulating body 1 First - 'body 11 First base 13 Rear end 131 Side 132 Receiving groove 133 First fixing groove 134 Second fixing groove 135 Tab 14 Positioning groove 141 Storage groove 142 second body 12 second base 15 bump 151 holding groove 152 convex rib 153 convex plate 16 201027848 convex strip 161 conductive terminal 2 first terminal group 21 first pair of differential signal terminal 211 second pair of differential signal terminal 212 first ground Terminal 213 first contact portion 214 first holding portion 215 first connecting portion 216 first soldering portion 217, 227 second soldering portion 218, 228 second terminal group 22 power terminal 220 third pair differential signal terminal 221 second ground terminal 23 second contact portion 224 second holding portion 225 elastic portion 222 second connecting portion 226 third welded portion 229 shielding housing 3 insertion hole 30 top wall 31 bottom wall 32 side wall 33 mounting foot 330 rear cover 34 spring 35 ❿ 9

Claims (1)

201027848 VII. Patent application scope: ι_ An electrical connector having a socket for receiving a mating plug, comprising: an insulative body comprising a base and a tongue projecting forwardly from the base into the insertion hole, and conducting The terminal is disposed on the insulative housing, the conductive terminal includes a plurality of grounding terminals and a plurality of pairs of differential signal terminals. Each of the grounding terminals includes a contact portion exposed to the mating plug for connecting the mating plug and extending from the insulative housing. a soldering portion, each of the differential signal terminals includes a contact portion exposed to the mating plug and a second soldering portion extending from the insulative housing, and a contact portion of the at least one pair of differential signal terminals at a width of the tab Aligning with each other in the direction, the first and second welded portions are arranged in a row; The first soldering portions of the two ground terminals are arranged between the second soldering portions of the adjacent two pairs of differential signal terminals. 2. The electrical connector of claim 1, wherein the electrical connector is a USB receptacle connector, and the second soldering portion is further disposed at an outermost position of the two ends of the row. 3. The electrical connector of claim 1, wherein the contact portion of the ground terminal and the differential signal terminal are arranged on the same side of the tongue. 4. The electrical connector of claim 1, wherein the conductive terminal further comprises a power terminal, wherein the power terminal comprises a contact portion disposed on the tongue for connecting the mating plug and extending out of the insulating body. a third soldering portion, the grounding terminal includes first and second grounding differential signal terminals including first, second, and third pairs of differential signals=sub, including first and second terminal groups 'first and second terminals The group together constitutes a USB 3〇A type socket connector terminal 'for connecting USB3.0A type butt plug, the second terminal group is USB2〇a type socket connection II terminal' for connecting USB 2·〇A type butt plug, the first The terminal group is sequentially arranged in the plug hole: the first pair of differential signal terminals, the first ground terminal, the second differential signal terminal, and the second terminal group are sequentially arranged in the plug hole: the third differential Signal terminal, power terminal. The electrical connector of claim 4, wherein the soldering portion of the first grounding terminal is disposed as a pair, and at least a second soldering portion is disposed between the two first soldering portions, At least one of the first welds of the second weld or other ground terminal. 6. The electrical connector of claim 4, wherein the 'group second soldering portions are respectively arranged on the outer side of all the first, second and third soldering ends of the second terminal group 201027848-specific contact The second contact portion j on the second terminal group and the second terminal portion are in a thousand-strip structure, and the second contact portion is provided with a rotating structure, and the material is placed on the same side of the tongue piece along the mating direction of the mating plug. . 9. The electrical connector according to claim 4, wherein the contact portion is connected to the -W and the first (the fourth) portion, and the first and second tandem portions of the first terminal group are connected from the first connection. The connection key is a tuning fork type structure such that *-connection = one row, and the second has an electric connection trace as described in the welding section, wherein the second terminal group includes a second holding portion connected to the contact = And the first, second, and third welded portions of the second connecting portion that is bent downward from the second holding portion and vertically bent are formed to extend horizontally rearward from the second connecting portion, and the first connecting portion is inclined outwardly. The second connecting portion is disposed obliquely to the inner side. The electrical connector of claim 4, wherein the electrical connector further comprises a shielding shell covering the insulative housing, the insertion hole being formed between the shielding housing and the tongue and the contact portion. φ is for accommodating a USB 2.0 Α type or a USB 3.0 对 type butt plug, and the first, second, and third soldering portions are arranged in a row and are sequentially arranged as: a second soldering portion of the first pair of differential signal terminals a first soldering portion of a grounding terminal, a first soldering portion of the second grounding terminal, a second soldering portion of the third pair of differential signal terminals, a third soldering portion of the power source terminal, a first soldering portion of the first grounding terminal, and a first soldering portion of the first grounding terminal a second soldering portion of the two pairs of differential signal terminals. 12. The electrical connector of claim 4, wherein the electrical connector further comprises a cover body covering the insulative housing, the wire housing and the tongue, and the contact portion are formed with a plug hole. For accommodating a USB 2.0 A type or a USB 3.0 A type butt plug, the first, second, and third soldering portions are arranged in a row and arranged in order: a second soldering portion of the first pair of differential signal terminals, the first a first soldering portion of the grounding terminal, a first soldering portion of the second grounding terminal, a second soldering portion of the third pair of differential signal terminals, a first soldering portion of the first grounding terminal, and a third soldering portion of the power supply terminal 201027848 • a second soldering portion of the second pair of differential signal terminals. The electrical connector of claim 4, wherein the insulative housing comprises a first body and a second body fixed to the first body, the first terminal set being embedded in the first The first terminal set on the body is fixed on the second body and held between the first and second bodies. An electrical connector, comprising a socket for receiving a mating plug, comprising: an insulative housing comprising a base and a tongue projecting from the base into the insertion hole; and a plurality of conductive terminals being disposed on the insulative body The conductive terminal includes a plurality of grounding terminals and a plurality of pairs of differential signal terminals, each of the grounding terminals includes a contact portion disposed on the tongue for connecting with the mating plug and a first soldering portion extending from the insulating body, The differential signal terminals each include a contact portion disposed on the tongue for connecting with the mating plug and a second soldering portion extending from the insulating body, the first and second soldering portions are arranged in a row, wherein the two grounding terminals are The first soldering portion is arranged between the second soldering portions of the adjacent two pairs of differential signal terminals. 15. The electrical connector of claim 14, wherein the second weld is arranged at an outermost position at both ends of the row. 16. The electrical connector of claim 14, wherein the contact portions of the conductive terminals are all on the same side of the tab. 17. The electrical connector of claim 14, wherein the contact portion of the conductive terminal is staggered in the insertion direction of the mating plug. 18. The electrical connector of claim 14, wherein the two contact portions of each pair of differential signal terminals are aligned in the width direction of the tongue". 19. 19. Patent Application No. 14 The electrical connector, wherein the conductive terminal further comprises a power terminal, the power terminal includes a contact portion disposed on the tongue and connected to the mating plug, and a third soldering portion extending from the insulating body, the first The second and third welded portions are arranged in a row. 20. The electrical connector of claim 19, wherein the ground terminal comprises first and second ground terminals, and the differential signal terminal comprises first, second, and third pairs of differential signal terminals, the conductive The terminal includes first and second terminal groups, and the first and second terminal groups together form a USB 3 〇A type socket connector terminal for connecting a USB 3.0A type butt plug, and the second terminal group is a USB 2.0 A type socket connection. The terminal is connected to the USB 2.0 A type butt plug, and the first terminal group is sequentially arranged in the plug hole: the first pair of differential signal terminals, the first ground terminal, the second differential signal terminal, and the second terminal group The second grounding terminal, 12 201027848 third differential signal terminal, and power terminal are arranged in the insertion hole. At least one of the first soldering portions of the second soldering portion, the first known adjacent or other grounding terminal is disposed between the first soldering portions of the first-ground terminal The electrical connector of claim 19, wherein the first and second portions of the first material group are arranged outside the two ends of all the welded portions of the second terminal group, and the first of the second terminal groups The second and third welded portions are respectively arranged adjacent to each other. The electrical connector of claim 19, wherein the contact portion comprises a first contact portion and a second terminal group disposed on the first &subgroup; The first contact portion is disposed in a flat structure, and the second contact portion is disposed as an elastic structure. The first and second contact portions are disposed on the same side of the tongue and are disposed in the insertion direction of the mating plug, and the first contact portion is disposed. The second contact portion is located at a different height in the thickness direction of the tongue. [24] The electrical connector of claim 19, wherein the one terminal group comprises a first holding portion connected to the contact portion and a first connecting portion extending downward from the first holding portion The first and second soldering portions of the first terminal group are formed to extend horizontally rearward from the first connecting portion, and the first connecting portion of the first grounding terminal is provided in a sound-and-replacement configuration such that the first grounding terminal is soldered. The portion is extended from the first connecting portion to _, and all the welded portions of the second terminal group are arranged between the two first welded portions of the first grounding terminal. The electrical connector of claim 19, wherein the electrical connector further comprises a covered insulator, the bribe and the material, and the splicing hole for receiving a USB 2.0 A type or a USB 3. 0 type butt plug, wherein the first and second soldering portions are arranged in a row and are sequentially arranged as: a second soldering portion and a first grounding terminal of the first pair of differential signal terminals a first soldering portion, a first soldering portion of the second grounding terminal, a second soldering portion of the third pair of differential signal terminals, a third twisting portion of the power supply terminal, a first tandem portion of the first grounding terminal, and a first The second tandem portion of the differential signal terminal. 26·If applying for the electric raft connected in the full-time Μ 9 妓 妓 妓 妓 妓 妓 妓 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 电 电 电 电 电 电 电To receive a USB 2.0 或 type or a USB 3.0 对 type butt plug, the first, second, and third tang portions are arranged in a row and are sequentially arranged as: a second soldering portion of the first pair of differential signal terminals, a first soldering portion of the first ground terminal, a first soldering portion of the second grounding terminal, a third pair 13 201027848 * a second soldering portion of the differential signal terminal, a first soldering portion of the first grounding terminal, and a third power source terminal a soldering portion and a second soldering portion of the second pair of differential signal terminals. 27. An electrical connector, comprising a plug hole for receiving a mating plug, comprising: an insulative body having a tongue projecting into the plug hole; and a plurality of conductive terminals being disposed on the insulative body The conductive terminal includes first and second terminal groups. The first and second terminal groups respectively include a ground terminal and a differential signal terminal disposed in pairs. The ground terminal and the differential signal terminal respectively include exposure to the plug. a contact portion for connecting with the mating plug and a soldering portion extending from the insulative housing, at least part of the contact portion is arranged on the tongue, the soldering portions are arranged in a row, wherein the soldering portions of the two grounding terminals are located adjacent to each other Between the soldered portions of the differential signal terminals.电 28. The electrical connector of claim 27, wherein the electrical connector is a USB receptacle connector. The soldering portion of the differential signal terminal is disposed at an outermost position at both ends of the row. 29. The electrical connector of claim 27, wherein the contact portion comprises a first contact portion disposed on the first terminal and a second contact portion disposed on the second terminal group, the contact The parts are arranged on the same side of the tongue. The electrical connector of claim 29, wherein the first and second contacts are at different heights in the thickness direction of the tongue. The electrical connector of claim 29, wherein the first and second contacts are staggered in a plugging direction of the docking plug. The electrical connector of claim 29, wherein the first contact portion is provided in a flat plate-like structure, and the second contact portion is provided in an elastic structure. 33. The electrical connector of claim 29, wherein the conductive terminal further comprises a power terminal, the power terminal comprising a contact portion disposed on the tongue for connecting the mating plug and extending out of the insulating body a third soldering portion, the grounding terminal includes first and second grounding terminals, the differential signal terminal includes first, second, and third pairs of differential signal terminals, and the conductive terminals include first and second terminal groups, first The second terminal group together constitutes a USB3 〇a type socket connector terminal for connecting a USB 3.0 A type mating plug, and the second terminal group is a USB 2 〇A type socket connector terminal for connecting a USB 2.0 A type mating plug The first terminal group is sequentially arranged in the insertion hole: the first pair of differential signal terminals, the first ground terminal, and the second differential signal terminal, and the second terminal group is sequentially arranged in the insertion hole: Second grounding terminal Second difference 14 201027848 Sub-signal terminal, power terminal. The electrical connector of claim 33, wherein the first soldering portion of the first grounding terminal is disposed as a pair, and all of the soldering portions of the second terminal group are disposed at the first grounding terminal The 'between a pair of welded parts. The electrical connector of claim 33, wherein the electrical connector further comprises a shielding shell covering the insulative housing, the plug housing and the tongue, the contact portion being formed with the plug a hole for receiving a USB 2.0 A type or a USB 3.0 A type butt plug, wherein the first, second, and third soldering portions are arranged in a row and are sequentially arranged as: a second soldering of the first pair of differential signal terminals a first soldering portion of the first grounding terminal, a first soldering portion of the second grounding terminal, a second soldering portion of the third pair of differential signal terminals, a third soldering portion of the power supply terminal, and a first grounding terminal of the first grounding terminal a soldering portion and a second soldering portion of the second pair of differential signal terminals. The electrical connector of claim 33, wherein the electrical connector further comprises a shielding shell covering the insulative housing, the plug housing is formed with the tongue and the contact portion a hole for receiving a USB 2.0 A type or a USB 3.0 A type butt plug, wherein the first, second, and third soldering portions are arranged in a row and are sequentially arranged as: a second soldering of the first pair of differential signal terminals a first soldering portion of the first grounding terminal, a first soldering portion of the second grounding terminal, a first soldering portion of the third pair of differential signal terminals, a first soldering portion of the first grounding terminal, and a third soldering of the power terminal a second soldering portion of the second pair of differential signal terminals. ❹ 15