TWI729716B - Electric connector (10) - Google Patents

Abstract

The present invention relates to an electrical connector, which includes a transmission conductor group with a welding part group. The welding part group mainly includes a first ground welding part, a first differential signal pair, a second ground welding part, and a second ground welding part arranged in sequence. Differential signal pair, third ground welding part, third differential signal pair, fourth ground welding part, fourth differential signal pair, fifth ground welding part, and welding pair by network signal, low frequency signal welding pair, low frequency signal welding Part, sixth ground welding part, power supply welding part, and hot plug detection welding part. The first to fourth differential signal pairs are formed by a pair of differential signal terminals arranged next to each other, and the left and right sides of the first to fourth differential signal pairs are provided with first to fifth ground welding parts. The grounding terminal uses the paired differential signal terminal and the grounding terminal to isolate the differential signal to reduce the influence of electromagnetic interference.

Description

Electric connector(10)

The present invention is to provide an electrical connector, especially an electrical connector that can reduce the influence of electromagnetic interference and has practicability in compliance with the association's specifications.

Press, High Definition Multimedia Interface (HDMI) is a fully digital video and audio transmission interface that can transmit uncompressed audio and video signals. HDMI can be used in devices such as set-top boxes, DVD players, personal computers, video games, integrated amplifiers, digital audio and televisions. HDMI can transmit audio and video signals at the same time. Because the audio and video signals use the same wire, the installation difficulty of the system line is greatly simplified.

As high-quality images gradually become the mainstream film and television standard, and the resolution from FHD to UHD has progressed, displays that support 4K display technology are becoming more and more popular. Therefore, the data transmission bandwidth in the past may no longer meet the functions of the future video transmission interface. Demand, there is the formulation of a new HDMI2.1 specification, the transmission bandwidth has been increased from 18Gbps of HDMI2.0 to 48Gbps in one fell swoop, and supports a variety of higher dynamic image pixels and update rates (such as: 4K/120Hz or 8K/60Hz ), when using compression technology, it can support up to 10K/120Hz. In addition to the significant increase in transmission bandwidth, dynamic HDR and low-latency transmission technology are also added to the function part, which is compatible with the previous HDMI2.0 specification and up to 10K pixels It also supports commercial, industrial and other professional uses.

However, when the above HDMI is used, there are the following problems and deficiencies that need to be improved:

First, due to the increased support for resolution, transmission bandwidth, dynamic image pixels, and update rate, the data transmission volume is very large, and the transmission rate and quality requirements are also very high, but the existing technology only relies on the connected Hardware equipment or high-speed network transmission speeds to make up for the insufficiency of HDMI cannot fundamentally solve the various interference problems of high-frequency signal transmission in HDMI.

Second, based on the association's specifications for HDMI, the relevant industry cannot make specific adjustments. Therefore, other high-frequency connectors used to solve interference problems have not been applied to HDMI.

Therefore, how to solve the above-mentioned conventional problems and deficiencies is the creator of the present invention The relevant manufacturers in this industry are eager to study the direction of improvement.

Therefore, in view of the above-mentioned deficiencies, the creator of the present invention collected relevant information, evaluated and considered from many parties, and based on years of experience in this industry, through continuous trials and modifications, he began to design this kind of electromagnetic interference reduction device. Influential, and has a patent for the invention of electrical connectors that meet the specifications of the association.

The main purpose of the present invention is to reduce the influence of electromagnetic interference by using the paired differential signal terminals of the first to fourth differential signal pairs to match the isolation effect of the ground terminals on both sides of the differential signal terminal.

In order to achieve the above object, the electrical connector of the present invention includes a transmission conductor group having a welding part group, and the welding part group mainly includes: a first ground welding part, one side of the first ground welding part A first differential signal pair is provided, a second ground welding part is provided on the side of the first differential signal pair away from the first ground welding part, and a second ground welding part is provided on the side of the second ground welding part away from the first differential signal pair A differential signal pair, a third ground welding portion is provided on the side of the second differential signal pair away from the second ground welding portion, and a third differential signal pair is provided on the side of the third ground welding portion away from the second differential signal pair, A fourth ground welding part is provided on the side of the third differential signal pair away from the third ground welding part, and a fourth differential signal pair is provided on the side of the fourth ground welding part away from the third differential signal pair. The side of the signal pair away from the fourth ground welding portion is provided with a fifth ground welding portion, and the side of the fifth ground welding portion away from the fourth differential signal pair is provided with another welding portion group, and the other welding portion group includes a device The network signal welding pair on the side of the fifth grounding welding portion away from the fourth differential signal pair, the low-frequency signal welding pair located on the side of the network signal welding pair away from the fifth grounding welding portion, and the one on the side of the fifth grounding welding portion. The low-frequency signal welding part between the low-frequency signal welding pair, a sixth grounding welding part arranged between the low-frequency signal welding pair and located on the side of the low-frequency signal welding part, and one arranged on the low-frequency signal welding pair away from the network signal A power welding part on the opposite side of the welding, and a hot plug detection welding part arranged on the side of the power welding part away from the welding opposite of the low-frequency signal.

The transmission conductor set of the present invention conforms to the specifications of the high-definition multimedia interface (HDMI), and the originally separated differential signal terminals are redesigned at the welding part group, so that the positive and negative differential signal terminals of the same group are arranged adjacently into four Therefore, the first to fourth differential signal pairs are formed by a pair of differential signal terminals arranged next to each other, and the left and right sides of the first to fourth differential signal pairs have the following The ground terminals of the first to fifth ground welding parts utilize the paired differential signal terminals and ground terminals to isolate the differential signal and reduce the influence of electromagnetic interference.

With the above-mentioned technology, it is possible to break through the problems of poor transmission quality, easy interference, and difficult improvement of restricted association specifications that exist in the conventional high-definition multimedia interface, and achieve the practical advancement of the above-mentioned advantages.

1, 1a, 1c: electrical connector

11c: Female connector

12c: Male connector

2, 2a, 2b: transmission conductor group

21, 21a, 21b, 21c: welding part group

211, 211a, 211c: the first ground welding part

212, 212a: the first differential signal pair

213, 213a, 213b: second ground welding part

2131b: The second ground left welding part

2132b: 2nd ground right welding part

214, 214a: The second differential signal pair

215, 215a, 215b: third ground welding part

2151b: The third ground left welding part

2152b: 3rd ground right welding part

216, 216a: The third differential signal pair

217, 217a, 217b: the fourth ground welding part

2171b: The fourth ground left welding part

2172b: The fourth ground right welding part

218, 218a: Fourth differential signal pair

219, 219a: Fifth ground welding part

22: Other welding department group

221, 221a: network signal welding pair

222, 222a: low frequency signal welding pair

223, 223a: low frequency signal welding part

224, 224a: The sixth ground welding part

225, 225a: Power welding department

226, 226a: Hot plug detection welding part

23b: The first holding group

24b: plane department group

25b: The second holding group

251b: The first ground holding part

252b: The second ground holding part

253b: The second ground upper holding part

254b: The third ground upper holding part

255b: The third ground holding part

256b: The fourth ground lower holding part

257b: The fourth ground upper holding part

258b: Fifth ground holding part

26b: Contact group

261b: first ground contact

262b: second ground contact

263b: third ground contact

264b: Fourth ground contact

3b, 3c: insulating colloid

31b: tongue plate

32b: holding colloid

33b: Extension colloid

4c: Shielded shell

41c: Solder pin

411c: Styling Department

42c: Resisting limit

421c: The first resisting surface

422c: The second resistance surface

5c: Circuit board

51c: The first terminal welding part

52c: The second terminal welding part

53c: Pin plug interface

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is a top view of the transmission conductor set of the preferred embodiment of the present invention.

The third figure is a perspective view of another preferred embodiment of the present invention.

The fourth figure is a top view of a transmission conductor set according to another preferred embodiment of the present invention.

Fig. 5 is a perspective view of a transmission conductor set according to another preferred embodiment of the present invention.

The sixth figure is a side view of a transmission conductor set according to another preferred embodiment of the present invention.

The seventh figure is an exploded view (1) of the transmission conductor set of another preferred embodiment of the present invention.

Figure 8 is an exploded view (2) of the transmission conductor set of another preferred embodiment of the present invention.

The ninth figure is a side view of the hidden shielding shell of another preferred embodiment of the present invention.

The tenth figure is a perspective view of another preferred embodiment of the present invention.

Figure eleven is an exploded view of another preferred embodiment of the present invention.

Figure 12 is a schematic diagram of the insertion of another preferred embodiment of the present invention.

In order to achieve the above-mentioned purposes and effects, the technical means and structure adopted by the present invention are illustrated in detail below to illustrate the characteristics and functions of the preferred embodiments of the present invention, so as to fully understand.

Please refer to the first and second figures, which are a perspective view of a preferred embodiment of the present invention and a top view of a transmission conductor set. It can be clearly seen from the figures that the electrical connector 1 of the present invention includes a transmission conductor set 2 , The transmission conductor group 2 has a welding part group 21, and the welding part group 21 mainly includes:

A first ground welding part 211;

A first differential signal pair 212 arranged on one side of the first ground welding portion 211;

A second ground welding portion 213 on the side of the first differential signal pair 212 away from the first ground welding portion 211;

A second differential signal pair 214 on the side of the second ground welding portion 213 away from the first differential signal pair 212;

A third ground welding portion 215 on the side of the second differential signal pair 214 away from the second ground welding portion 213;

A third differential signal pair 216 on the side of the third ground welding portion 215 away from the second differential signal pair 214;

A fourth ground welding portion 217 on the side of the third differential signal pair 216 away from the third ground welding portion 215;

A fourth differential signal pair 218 on the side of the fourth ground welding portion 217 away from the third differential signal pair 216;

A fifth ground welding portion 219 provided on the side of the fourth differential signal pair 218 away from the fourth ground welding portion 217;

An other welding part group 22 arranged on the side of the fifth ground welding part 219 away from the fourth differential signal pair 218, and the other welding part group 22 includes an other welding part group 22 arranged on the fifth ground welding part 219 away from the fourth differential signal To the network signal welding pair 221 on the 218 side, a low frequency signal welding pair 222 located on the side of the network signal welding pair 221 away from the fifth ground welding portion 219, and one located between the low frequency signal welding pair 222 The low-frequency signal welding part 223, a sixth ground welding part 224 arranged between the low-frequency signal welding pair 222 and located on the side of the low-frequency signal welding part 223, and a sixth ground welding part 224 arranged on the low-frequency signal welding pair 222 away from the network signal welding pair The power welding part 225 on the side of 221 and a hot plug detection welding part 226 which is provided on the side of the power welding part 225 away from the low-frequency signal welding pair 222.

Through the above description, we can understand the structure of this technology, and according to the corresponding cooperation of this structure, the influence of electromagnetic interference can be reduced, and it has the practicability in compliance with the association's specifications. The detailed explanation will be explained in the following.

It can be clearly seen from the figure that the electrical connector 1 of the present invention is a female connector, and the transmission conductor set 2 conforms to the specifications of the high-definition multimedia interface (HDMI), but the terminals at the welding part set 21 are arranged Re-adjust the sequence so that the positive and negative differential signal terminals of the same group are arranged adjacently into four groups, and these four groups of positive and negative differential signal terminals are defined as the first to fourth differential signal pairs 212, 214 in sequence , 216, 218, and due to the paired design of the first to fourth differential signal pairs 212, 214, 216, 218, the first to fourth differential signal pairs 212, 214, 216, 218 are coupled to each other to achieve a higher increase For the purpose of frequency characteristics, in addition, the terminal arrangement sequence of the welding part group 21 also includes the left and right sides of the first to fourth differential signal pairs 212, 214, 216, and 218, all of which have the first to fifth grounding The ground terminals of the welding parts 211, 213, 215, 217, and 219, specifically, the two sides of the first differential signal pair 212 are the first ground welding part 211, the second ground welding part 213, and the second differential signal pair 214. Is the second ground welding part 213 and the third ground welding part 215, the third ground welding part 215 and the fourth ground welding part 217 are on both sides of the third differential signal pair 216, and the fourth differential signal pair 218 is the fourth ground on both sides The welding part 217 and the fifth ground welding part 219 are used to isolate the differential signal by the paired differential signal terminals and the ground terminal, thereby reducing the influence of electromagnetic interference, except for the first to fifth ground welding parts 211, 213, Except for 215, 217, 219 and the first to fourth differential signal pairs 212, 214, 216, 218, the other welding part group 22 is the same as the original HDMI. Therefore, the terminal arrangement order at the welding part group 21 has been re-adjusted to The first ground welding portion 211, the first differential signal pair 212, the second ground welding portion 213, the second differential signal pair 214, the third ground welding portion 215, the third differential signal pair 216, the fourth ground welding portion 217, and the Four differential signal pair 218, fifth ground welding part 219, network signal welding pair 221, one of the terminals of low frequency signal welding pair 222, low frequency signal welding part 223, sixth ground welding part 224, low frequency signal welding pair 222 The other terminal, the power soldering part 225, and the hot-plug detecting soldering part 226, still comply with the HDMI standards of the Association, and are practical.

Please also refer to Figures 3 and 4 at the same time, which are a three-dimensional perspective view and a top view of the transmission conductor set of another preferred embodiment of the new invention. It can be clearly seen from the figure that this embodiment and the above embodiment In order to be similar, only the electrical connector 1a is changed to a male connector, and the transmission conductor set 2a also conforms to the HDMI specification, so the welding part set 21a also has the same arrangement, in other words, The arrangement sequence is also the first ground welding part 211a, the first differential signal pair 212a, the second ground welding part 213a, the second differential signal pair 214a, the third ground welding part 215a, the third differential signal pair 216a, the fourth ground The welding part 217a, the fourth differential signal pair 218a, the fifth ground welding part 219a, the network signal welding pair 221a, one of the terminals of the low frequency signal welding pair 222a, the low frequency signal welding part 223a, the sixth ground welding part 224a, the low frequency The other terminal of signal welding pair 222a, power welding part 2 25a, and the hot plug detection welding part 226a, still comply with the HDMI standards of the association, and have practicality.

Please also refer to Figures 5 to 9 at the same time, which are a three-dimensional view of a transmission conductor to a side view of a hidden shielding shell of another preferred embodiment of the new invention. It can be clearly seen from the figure that this embodiment is different from The above embodiments are similar, but the second grounding welding portion 213b has a second grounding left welding portion 2131b, and a second grounding right welding portion 2132b arranged next to the second grounding left welding portion 2131b, and the third grounding welding portion 213b has a second grounding left welding portion 2131b and a second grounding right welding portion 2132b disposed next to the second grounding left welding portion 2131b. The grounding welding portion 215b has a third grounding left welding portion 2151b, and a third grounding right welding portion 2152b immediately adjacent to the third grounding left welding portion 2151b, and the fourth grounding welding portion 217b has a fourth grounding left The welding portion 2171b, and a fourth grounding right welding portion 2172b that is adjacent to the fourth grounding left welding portion 2171b. And the transmission conductor group 2b has a first holding portion group 23b formed on the side of the welding portion group 21b, and a flat portion group 244b formed on the side of the first holding portion group 23b. The transmission conductors are coplanar and parallel to the welding part group 21b. A second holding part group 25b is formed on one side of the flat part group 24b, and a contact part group is formed on one side of the second holding part group 25b. 26b. The electrical connector has an insulating gel 3b that is combined with the transmission conductor set 2b. The insulating gel 3b includes a tongue plate portion 31b for providing the contact portion set 26b, and a tongue plate portion 31b formed on one side of the tongue plate portion 31b. A holding gel 32b for combining the first holding part group 23b, the flat part group 24b, and the second holding part group 25b, and an extension gel formed on one side of the holding gel 32b and for protruding the welding part group 21b 33b. The second holding portion group 25b includes a first ground holding portion 251b extending from the first ground welding portion 211b, and a first ground holding portion 251b extending from the second ground left welding portion 2131b and connected to the first ground holding portion 251b. Two ground lower holding portions 252b, a second ground upper holding portion 253b extending from the second ground right welding portion 2132b, and a second ground holding portion 253b extending from the third ground left welding portion 2151b and connected to the second ground upper holding portion 253b Three ground upper holding portions 254b, a third ground lower holding portion 255b extending from the third ground right welding portion 2152b, and a third ground lower holding portion 255b extending from the fourth ground left welding portion 2171b and connected to the third ground lower holding portion 255b Four ground lower holding portions 256b, a fourth ground upper holding portion 257b extending from the fourth ground right welding portion 2172b, and a fourth ground holding portion 257b extending from the fifth ground welding portion 219b and connected to the fourth ground upper holding portion 257b Five grounded holding portions 258b, and the contact portion set 26b includes a first grounded holding portion 251b and the second grounded lower holding portion 252b. A ground contact portion 261b, a second ground contact portion 262b formed by extending the second ground upper holding portion 253b and the third ground upper holding portion 254b, and a second ground contact portion 262b formed by the third ground lower holding portion 255b and the fourth ground holding portion 255b. A third ground contact portion 263b formed by the extension of the underground holding portion 256b, and a fourth ground contact portion 264b formed by the extension of the fourth upper ground holding portion 257b and the fifth ground holding portion 258b.

As shown in the fifth figure, in this embodiment, the second ground welding portion 213b is composed of the second ground left welding portion 2131b and the second ground right welding portion 2132b, and the third ground welding portion 215b is formed by the third ground The left welding portion 2151b and the third grounding right welding portion 2152b are arranged in close proximity, and the fourth grounding welding portion 217b is constituted by the fourth grounding left welding portion 2171b and the fourth grounding right welding portion 2172b being arranged in close proximity. In this embodiment, it means that the distance is less than 0.3 mm, and the positional relationship of the adjacent arrangement is maintained from the welding part group 21b, the first holding part group 23b to the plane part group 24b. In this way, let the second grounded left and right welded parts 2131b and 2132b share the ground, let the third grounded left and right welded parts 2151b, 2152b share the ground, and let the fourth grounded left and right welded parts 2171b, 2172b share the ground to reduce The demand for mold accuracy reduces the difficulty of mold opening, increases production speed, and improves production quality.

As shown in the sixth and ninth figures, the transmission conductor group 2b is divided into upper and lower rows from the contact part group 26b. The contact part group 26b is connected to the second holding part group 25b, and is connected to the second holding part group 25b. Bend to the same height to define the flat part group 24b, and the flat part group 24b and the welding part group 21b are parallel to each other, so that the user can according to the installation requirements of the electrical connector (board, sinking or under-board ), freely design the length of the first holding part group 23b, and change the PIN height of the soldering part group 21b to adapt to different circuit substrates. In addition, in response to the change in the length of the first holding portion group 23b, the insulating gel 3b is designed to be composed of the tongue portion 31b, the holding gel 32b, and the extension gel 33b. The holding gel 32b is for the second holding portion set 25b. The up-and-down bifurcation pattern strengthens the structure, and the stretched colloid 33b can be coated corresponding to the first holding part group 23b of various lengths.

As shown in the seventh and eighth figures, the second ground left welding part 2131b, the second ground right welding part 2132b, the third ground left welding part 2151b, the third ground right welding part 2152b, and the fourth ground left welding part 2171b , And the fourth grounding right welding part 2172b extends to the second holding part group 25b, and then diverges upward and downward respectively, and then a total of two groups The same extension is formed as first to fourth ground contact portions 261b, 262b, 263b, and 264b. Specifically, the first ground holding portion 251b and the second lower ground holding portion 252b extend from one side of the plane portion group 24b to form a first ground contact portion 261b and a second ground upper holding portion located in the lower row of the contact portion group 26b. 253b and the third ground upper holding portion 254b extend from one side of the plane portion group 24b to form a second ground contact portion 262b, a third ground lower holding portion 255b, and the fourth ground lower holding portion located on the upper row of the contact portion group 26b 256b extends from the side of the plane portion group 24b to form the third ground contact portion 263b, the fourth ground upper holding portion 257b, and the fifth ground holding portion 258b located in the lower row of the contact portion group 26b. The fourth ground contact portion 264b located in the upper row of the contact portion group 26b is formed.

Please also refer to Figures 10 to 12 at the same time, which are a perspective view of another preferred embodiment of the present invention to a schematic diagram of the plug connection. It can be clearly seen from the figure that this embodiment is the same as the above embodiment. In order to be similar, the only difference is that the electrical connector 1c has a shielding shell 4c covering the insulating gel 3c, and the shielding shell 4c has at least one welding pin portion 41c and at least one recessed resisting limit. The position portion 42c, and the welding pin portion 41c has a shape portion 411c for increasing the contact area, and one side of the resisting and limiting portion 42c defines a first resisting surface 421c for resisting the insulating colloid 3c, and The other side of the resisting and limiting portion 42c defines a second resisting surface 422c. In addition, the electrical connector 1c is arranged on a circuit board 5c, and the circuit board 5c includes a plurality of separate first terminal soldering portions 51c, and a first terminal soldering portion 51c provided on one side of the first terminal soldering portion 51c for connecting the The second terminal welding portion 52c of the first ground welding portion 211c and a pin insertion port 53c formed on the second terminal welding portion 52c for inserting the welding pin portion 41c.

As shown in the tenth and eleventh figures, the styling part 411c in this embodiment is composed of a plurality of grooves of the same or different shapes, which are distributed on the welding pin part 41c in a regular or irregular manner. When the soldering pin portion 41c is combined with the pin insertion interface 53c, the tin area of the soldering pin portion 41c can be increased, thereby improving the soldering strength, and the first terminal soldering portion 51c and the second terminal on the circuit board 5c are soldered In addition to the part 52c for welding with the welding part group 21c, the second terminal welding part 52c welded to the first ground welding part 211c can also be used for the welding pin part 41c to be inserted at the same time. In this embodiment, the second terminal welding The area of the portion 52c is expanded to the insertion position of the welding pin portion 41c, and the pin insertion interface 53c is formed in the second terminal welding portion 52c, thereby welding the pin portion 41c and the first ground welding portion 211c Altogether.

As shown in Figure 12, the resisting and limiting portion 42c formed on the shielding shell 4c is recessed , Through the first resisting surface 421c on the side adjacent to the insulating gel 3c, assisting the fixing strength of the insulating gel 3c in the shielding shell 4c, and using the second resisting surface 422c on the side away from the insulating gel 3c in the female seat When the connector 11c and the male connector 12c are plugged in, the effect of blocking and limiting is provided, which prevents the male connector 12c from being over-inserted and reduces the risk of damage to the female connector 11c.

However, the above description is only the preferred embodiments of the present invention, which does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the scope of the patent of the present invention, and is hereby stated.

In summary, the electrical connector of the present invention can indeed achieve its effects and purposes when used. Therefore, the present invention is truly an invention with excellent practicability. In order to meet the requirements of an invention patent application, I will apply for it in accordance with the law. The review committee approved the invention as soon as possible to guarantee the hard work of the creator. If the review committee has any doubts, please don’t hesitate to write to us for instructions.

2b: Transmission conductor group

21b: Welding Department Group

213b: The second ground welding part

2131b: The second ground left welding part

2132b: 2nd ground right welding part

215b: The third ground welding part

2151b: The third ground left welding part

2152b: 3rd ground right welding part

217b: The fourth ground welding part

2171b: The fourth ground left welding part

2172b: The fourth ground right welding part

23b: The first holding group

24b: plane department group

Claims (10)

An electrical connector, the electrical connector includes a transmission conductor group, the transmission conductor group has a welding part group, and the welding part group mainly includes: A first ground welding part; A first differential signal pair arranged on one side of the first ground welding part; A second ground welding portion provided on a side of the first differential signal pair away from the first ground welding portion; A second differential signal pair arranged on a side of the second ground welding portion away from the first differential signal pair; A third ground welding portion provided on a side of the second differential signal pair away from the second ground welding portion; A third differential signal pair arranged on the side of the third ground welding portion away from the second differential signal pair; A fourth ground welding part provided on the side of the third differential signal pair away from the third ground welding part; A fourth differential signal pair arranged on the side of the fourth ground welding portion away from the third differential signal pair; A fifth ground welding portion provided on a side of the fourth differential signal pair away from the fourth ground welding portion; A set of other welding parts arranged on the side of the fifth ground welding part away from the fourth differential signal pair, and the other welding part set includes a net arranged on the side of the fifth ground welding part away from the fourth differential signal pair One pair of low-frequency signal welding on the side of the network signal welding pair away from the fifth ground welding portion, one on the low-frequency signal welding portion between the low-frequency signal welding pair, and one on the low-frequency signal The sixth ground welding part located between the welding pairs and located on the side of the low-frequency signal welding part, a power welding part provided on the side of the low-frequency signal welding pair away from the network signal welding side, and a power welding part provided on the side of the power supply welding part. The low-frequency signal welds the hot-swappable part on one side to detect the welded part. The electrical connector described in item 1 of the scope of patent application, wherein the second grounding welding portion has a second grounding left welding portion and a second grounding right welding portion arranged next to the second grounding left welding portion, The third grounding welding part has a third grounding left welding part and a third grounding right welding part arranged next to the third grounding left welding part, and the fourth grounding welding part has a fourth grounding left welding part , And a fourth grounded right welding part arranged next to the fourth grounded left welding part. The electrical connector described in item 2 of the scope of patent application, wherein the transmission conductor group has a first holding portion group formed on one side of the welding portion group, and a flat surface formed on one side of the first holding portion group Part group, the transmission conductors of the plane part group are coplanar and parallel to the welding part group. The electrical connector described in item 3 of the scope of patent application, wherein a second holding part group is formed on one side of the flat part group, and the second holding part group includes a first ground extending from the first ground welding part A holding part, a left welding part extending from the second grounding part and connecting with the first grounding holding part The second ground lower holding portion, a second ground upper holding portion extending from the second ground right welding portion, and a third ground upper holding portion extending from the third ground left welding portion and connected to the second ground upper holding portion Portion, a third lower ground holding portion extending from the third ground right welding portion, a fourth lower ground holding portion extending from the fourth ground left welding portion and connecting the third ground lower holding portion, and one extending from The fourth ground upper holding part of the fourth ground right welding part, and a fifth ground holding part extending from the fifth ground welding part and connected to the fourth ground upper holding part. According to the electrical connector described in item 4 of the scope of patent application, a contact part group is formed extending from one side of the second holding part group, and the contact part group includes a holding part held by the first ground holding part and the second ground. A first ground contact portion formed by the extension of the second ground contact portion, a second ground contact portion formed by the extension of the second ground upper holding portion and the third ground upper holding portion, and a second ground contact portion formed by the extension of the third ground lower holding portion and the fourth ground A third ground contact portion formed by the extension of the underground holding portion, and a fourth ground contact portion formed by the extension of the fourth ground upper holding portion and the fifth ground holding portion. The electrical connector described in item 5 of the scope of patent application, wherein the electrical connector has an insulating colloid combined with the transmission conductor group, and the insulating colloid includes a tongue plate portion for setting the contact portion group, and a tongue plate portion formed on the contact portion group. One side of the tongue plate portion is provided with a retaining gel that combines the first retaining portion group, the flat portion group, and the second retaining portion group, and an extension formed on one side of the retaining gel for protruding the welding portion group colloid. The electrical connector described in item 6 of the scope of patent application, wherein the electrical connector has a shielding shell covering the insulating gel. According to the electrical connector described in item 7 of the scope of patent application, the shielding shell has at least one soldering pin portion, and the soldering pin portion has a modeling portion for increasing the contact area. For example, the electrical connector described in item 7 of the scope of patent application, wherein the shielding shell is concavely formed with at least one resisting and limiting portion, and one side of the resisting and limiting portion defines a first resisting insulating colloid. The resisting surface, and the other side of the resisting limit portion defines a second resisting surface for blocking the male connector. The electrical connector described in item 7 of the scope of the patent application, wherein the electrical connector is arranged on a circuit substrate, and the circuit substrate includes a plurality of separately arranged first terminal soldering parts, and a first terminal welding part arranged on the first One side of the terminal welding part is provided with a second terminal welding part connecting the first ground welding part and a pin insertion interface formed on the second terminal welding part, and the shielding shell has a lead inserted into the lead The welding pin part of the pin plug interface.

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