TWI717976B - Usb type a female connector - Google Patents

Abstract

The present invention is related to a USB type A female connector having a pair of first high-frequency differential signals transmission conductors, a pair of second high-frequency differential signals transmission conductors, a pair of low-frequency signals transmission conductors, a power transmission conductor and a ground transmission conductor. The back end of the ground transmission conductor is situated in the ground part between the pair of first high-frequency differential signals transmission conductors and the pair of second high-frequency differential signals transmission conductors and the front end of the ground transmission conductor is situated in a first abutment in a certain side of the low-frequency signals conductors and a second abutment situated between the pair of first high-frequency differential signals conductors and the pair of second high-frequency differential signals conductors. Thereby, it can reduce the noise interference by the potential difference between the power transmission conductor and the ground transmission conductor filtering noise.

Description

USB A female connector

The present invention relates to a connector structure, and particularly relates to a USB A female connector.

At present, USB (Universal Serial Bus) 3.0, its speed mode is called "Super Speed", the main technical standards are: support full-duplex, and use the send list section to send data packets, the power supply standard is 900mA, and theoretically support The potential of optical fiber transmission, the transmission speed is 5Gbit/s.

However, USB 3.0 Type-A is usually very serious in noise interference. In short, when the high-frequency terminal is activated, some noise will inevitably be generated. If the terminal and the terminal are not in the noise area, When perfected, they will interfere with each other, also commonly known as high-frequency noise interference, which makes the high-frequency unable to achieve the purpose of optimization. Therefore, how to solve the noise interference problem of USB 3.0 Type-A is the focus of the urgent research of manufacturers in this field.

In view of this, the inventor of the present invention focused on the above-mentioned prior art, and made great efforts to solve the above-mentioned problems, which became the goal of the inventor's development.

The present invention provides a USB A female connector, which uses the potential difference between the power transmission conductor and the ground transmission conductor to isolate high-frequency and low-frequency noise, so as to achieve the purpose of optimizing noise interference at high frequencies.

In the embodiment of the present invention, the present invention provides a USB A female connector, including: a first high-frequency differential signal transmission conductor pair, the rear end defines a first high-frequency differential signal welding pair and the front end defines a first High-frequency differential signal plate-shaped contact pair; a second high-frequency differential signal transmission conductor pair is arranged on one side of the first high-frequency differential signal transmission conductor pair, and the rear end of the second high-frequency differential signal transmission conductor pair is defined and located A second high-frequency differential signal welding pair on one side of the first high-frequency differential signal welding pair and a second high-frequency differential signal plate contact defined by the front end and located on one side of the first high-frequency differential signal plate contact pair Pair; a low-frequency signal transmission conductor pair, located between the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, the low-frequency signal transmission conductor pair is defined at the rear end and located at the first high A low frequency signal welding pair and a front end defined between the frequency difference signal welding pair and the second high frequency difference signal welding pair are located between the first high frequency difference signal plate contact pair and the second high frequency difference signal plate contact A low-frequency signal plate-shaped contact pair on the rear side; a power transmission conductor arranged between the second high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair. The rear end of the power transmission conductor is defined and located on the first A power supply welding part between two high-frequency differential signal welding pairs and the low-frequency signal welding pair and a power supply plate-shaped contact part defined at the front end and located on one side of the low-frequency signal plate-shaped contact pair; a grounded transmission conductor provided in the Between the first high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, the rear end of the ground transmission conductor is defined and located at a ground elastic contact between the first high-frequency differential signal welding pair and the low-frequency signal welding pair A first ground plate-shaped contact portion defined and located on the other side of the low-frequency signal plate contact pair and a first ground plate-shaped contact portion located on the first high-frequency differential signal plate contact pair and the second high-frequency differential signal A second grounding plate-shaped contact portion between the plate-shaped contact pairs; and an auxiliary grounding transmission conductor provided on one of the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair On the outside of the auxiliary grounding transmission conductor, the rear end of the auxiliary grounding transmission conductor defines an auxiliary grounding elastic contact portion and the front end defines a third grounding plate-shaped contact portion.

In the embodiment of the present invention, the present invention provides a USB A female connector, including: at least one insulating gel; at least one terminal set fixed to the insulating gel, the terminal set including: a first high-frequency differential signal transmission Conductor pair, the rear end defines a first high-frequency differential signal welding pair and the front end defines a first high-frequency differential signal plate contact pair; a second high-frequency differential signal transmission conductor pair is set on the first high-frequency differential signal On one side of the transmission conductor pair, the second high-frequency differential signal transmission conductor pair defines a rear end and is located on the side of the first high-frequency differential signal welding pair. A second high-frequency differential signal welding pair and the front end are defined and located on the first A second high frequency differential signal plate contact pair on one side of the high frequency differential signal plate contact pair; a low frequency signal transmission conductor pair arranged between the first high frequency differential signal transmission conductor pair and the second high frequency differential signal Between the transmission conductor pairs, the low-frequency signal transmission conductor pair is defined at its rear end and is located between the first high-frequency differential signal welding pair and the second high-frequency differential signal welding pair. A low-frequency signal plate-shaped contact pair behind the first high-frequency differential signal plate-shaped contact pair and the second high-frequency differential signal plate-shaped contact pair; a power transmission conductor disposed on the second high-frequency differential signal transmission conductor pair Between the pair of low-frequency signal transmission conductors, a power source welding portion and a front end defined at the rear end of the power transmission conductor and located between the second high-frequency differential signal welding pair and the low-frequency signal welding pair are located on the low-frequency signal board A power plate-shaped contact portion on one side of the pair of contact pairs; and a grounded transmission conductor disposed between the pair of first high-frequency differential signal transmission conductors and the pair of low-frequency signal transmission conductors. The rear end of the ground transmission conductor is defined and located A grounding elastic contact portion between the first high-frequency differential signal welding pair and the low-frequency signal welding pair, and a front end extending and juxtaposed with a first grounding plate-shaped contact located on the other side of the low-frequency signal plate-shaped contact pair Part and a second ground plate contact part located between the first high frequency differential signal plate contact pair and the second high frequency differential signal plate contact pair; an auxiliary ground transmission conductor is arranged at the first height Outside of one of the pair of frequency differential signal transmission conductors and the second pair of high frequency differential signal transmission conductors, the rear end of the auxiliary ground transmission conductor defines an auxiliary ground elastic contact portion and the front end defines a third ground plate-shaped contact portion; and A shielding shell contains the insulating colloid and is in electrical contact with the third ground plate-shaped contact portion.

In the embodiment of the present invention, the present invention provides a USB A female connector, including: two terminal groups, each terminal group includes: a first high-frequency differential signal transmission conductor pair, the rear end defines a first height The frequency differential signal welding pair and the front end define a first high frequency differential signal plate-shaped contact pair; a second high frequency differential signal transmission conductor pair is arranged on one side of the first high frequency differential signal transmission conductor pair, and the second high A second high-frequency differential signal welding pair and a front end defined and located at the side of the first high-frequency differential signal plate-shaped contact pair are defined by the rear end of the pair of frequency differential signal transmission conductors and located on the side of the first high-frequency differential signal welding pair A second high-frequency differential signal plate contact pair; a low-frequency signal transmission conductor pair, arranged between the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, the low-frequency signal transmission A low-frequency signal welding pair defined by the rear end of the conductor pair and located between the first high-frequency differential signal welding pair and the second high-frequency differential signal welding pair and a front end defined and located on the first high-frequency differential signal plate contact pair A low frequency signal plate contact pair behind the second high frequency differential signal plate contact pair; a power transmission conductor arranged between the second high frequency differential signal transmission conductor pair and the low frequency signal transmission conductor pair, The power transmission conductor is defined at a rear end and is located between the second high-frequency differential signal welding pair and the low-frequency signal welding pair with a power welding portion and a front end defined and located on the low-frequency signal plate-shaped contact pair side of a power supply plate shape Contact portion; a grounded transmission conductor, provided between the first high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, the rear end of the ground transmission conductor is defined and located between the first high-frequency differential signal welding pair and the A grounding elastic contact portion between the low-frequency signal welding pair, and a first grounding plate-shaped contact portion located on the other side of the low-frequency signal plate-shaped contact pair and located on the first high-frequency differential signal plate. A second grounded plate-shaped contact portion between the pair of contact pairs and the second high-frequency differential signal plate-shaped contact pair; and an auxiliary grounded transmission conductor, one of which is provided on the first high-frequency differential signal On the outside of the transmission conductor pair, the other auxiliary ground transmission conductor is arranged on the outside of the second high-frequency differential signal transmission conductor pair. The rear end of each auxiliary ground transmission conductor defines an auxiliary ground elastic contact portion and the front end defines a third Ground plate-shaped contact portion; wherein each of the terminal groups consists of the first high-frequency differential signal plate-shaped contact pair, the second high-frequency differential signal plate-shaped contact pair, the low-frequency signal plate-shaped contact pair, and the power plate-shaped contact pair contact Part, the first grounded plate-shaped contact part and the second grounded plate-shaped contact part form a transmission conductor mating part group, and the two transmission conductor mating part groups are aligned up and down and arranged in two rows.

Based on the above, the second ground plate contact portion is located between the first high frequency differential signal plate contact pair and the second high frequency differential signal plate contact pair, and the power supply plate contact portion is located between the low frequency signal plate contact pair and the second plate contact pair. Between the high-frequency differential signal transmission conductor pairs, the first ground plate-shaped contact part is located between the low-frequency signal plate-shaped contact pair and the first high-frequency differential signal transmission conductor pair, so as to use the potential difference between the power transmission conductor and the ground transmission conductor to isolate high High-frequency and low-frequency noise, in order to achieve the purpose of high-frequency optimization noise interference.

Based on the above, the first grounding plate-shaped contact portion and the second grounding plate-shaped contact portion are integrally formed on the grounded transmission conductor, thereby simplifying the components of the terminal group and making the terminal group convenient to manufacture and assemble.

Based on the above, the terminal set further includes an auxiliary grounding transmission conductor, and the third grounding plate-shaped contact part of the auxiliary grounding transmission conductor is in electrical contact with the shielding shell, so that high-frequency noise can be transmitted to the shielding shell through the third grounding plate-shaped contacting part Eliminate the body, and achieve the purpose of high frequency optimization.

10: USB A female connector

1: The first high-frequency differential signal transmission conductor pair

11: The first high frequency differential signal welding pair

12: The first high-frequency differential signal plate contact pair

13: The first bending base

2: The second high-frequency differential signal transmission conductor pair

21: The second high frequency differential signal welding pair

22: The second high frequency differential signal plate contact pair

23: Second bending base

3: Low-frequency signal transmission conductor pair

31: Low frequency signal welding pair

32: Low frequency signal plate contact pair

4: Power transmission conductor

41: Power welding department

42: Power plate contact

5: Ground transmission conductor

50: Y-shaped transmission conductor

51: Ground elastic contact part

52: The first ground plate contact

53: second ground plate contact

54: third bending base

6: Auxiliary ground transmission conductor

61: Auxiliary grounding elastic contact part

62: third ground plate contact

71: Transmission conductor welding part group

72: Transmission conductor docking group

8: Insulating colloid

9: Shielding shell

91: Pin

100: circuit board

101: Leading part

102: fixed hole

103: opening

Figure 1 is a three-dimensional exploded view of the terminal set of the present invention.

Figure 2 is a three-dimensional assembly diagram of the terminal set of the present invention.

Figure 3 is another three-dimensional assembly diagram of the terminal set of the present invention.

Figure 4 is a schematic top view of the terminal set of the present invention.

Fig. 5 is a three-dimensional schematic diagram of the terminal set of the present invention fixed to the insulating colloid.

FIG. 6 is another three-dimensional schematic diagram of the terminal set of the present invention fixed to the insulating colloid.

Figure 7 is an exploded perspective view of the USB A female connector of the present invention.

Figure 8 is a three-dimensional assembly view of the USB A female connector of the present invention.

Fig. 9 is a schematic diagram of the use state of the USB A female connector of the present invention.

Fig. 10 is a schematic diagram of another use state of the USB A female connector of the present invention.

The detailed description and technical content of the present invention will be described as follows in conjunction with the drawings. However, the accompanying drawings are for illustrative purposes only and are not used to limit the present invention.

Please refer to Figures 1 to 10, the present invention provides a USB A female connector. The USB A female connector 10 mainly includes one or more insulating gels 8, one or more terminal groups, and a shielding shell 9. .

As shown in Figures 1 to 10, the number of terminal groups and insulating gel 8 in this embodiment is the same as two, but it is not limited to this. Each terminal group is fixed to each insulating gel 8, and each terminal group mainly includes one The first high-frequency differential signal transmission conductor pair 1, a second high-frequency differential signal transmission conductor pair 2, a low-frequency signal transmission conductor pair 3, a power transmission conductor 4, and a ground transmission conductor 5 are further described as follows.

The rear end of the first high frequency differential signal transmission conductor pair 1 defines a first high frequency differential signal welding pair 11 and the front end defines a first high frequency differential signal plate contact pair 12.

The second high-frequency differential signal transmission conductor pair 2 is arranged on the side of the first high-frequency differential signal transmission conductor pair 1, and the rear end of the second high-frequency differential signal transmission conductor pair 2 is defined and located at the first high-frequency differential signal welding pair 11 A second high-frequency differential signal welding pair 21 on the side and a second high-frequency differential signal plate-shaped contact pair 22 defined at the front end and located at one side of the first high-frequency differential signal plate-shaped contact pair 12.

The low-frequency signal transmission conductor pair 3 is arranged between the first high-frequency differential signal transmission conductor pair 1 and the second high-frequency differential signal transmission conductor pair 2, and the back end of the low-frequency signal transmission conductor pair 3 is defined and located at the first high-frequency differential signal welding A low frequency signal welding pair 31 between the pair 11 and the second high frequency differential signal welding pair 21 And a front end defines a low-frequency signal plate-shaped contact pair 32 located behind the first high-frequency differential signal plate-shaped contact pair 12 and the second high-frequency differential signal plate-shaped contact pair 22.

The power transmission conductor 4 is arranged between the second high-frequency differential signal transmission conductor pair 2 and the low-frequency signal transmission conductor pair 3. The back end of the power transmission conductor 4 is defined and located at the second high-frequency differential signal welding pair 21 and the low-frequency signal welding pair 31 A power supply welding portion 41 and a power supply plate-shaped contact portion 42 located at the side of the low-frequency signal plate-shaped contact pair 32 define the front end.

The ground transmission conductor 5 is provided between the first high-frequency differential signal transmission conductor pair 1 and the low-frequency signal transmission conductor pair 3, and the rear end of the ground transmission conductor 5 is defined and located at the first high-frequency differential signal welding pair 11 and the low-frequency signal welding pair 31 A first grounded elastic contact portion 51 between and a first grounded plate-shaped contact portion 52 located on the other side of the low-frequency signal plate-shaped contact pair 32 and located at the first high-frequency A second ground plate contact portion 53 between the differential signal plate contact pair 12 and the second high frequency differential signal plate contact pair 22.

In addition, the first high-frequency differential signal transmission conductor pair 1 is respectively defined and is located at a first bending base 13 outside the first ground plate-shaped contact portion 52. The first high-frequency differential signal plate-shaped contact pair 12 extends from each first bending base 13 The folding base 13 is extended and formed and is located on the front side of the first ground plate-shaped contact portion 52.

Furthermore, the second high-frequency differential signal transmission conductor pairs 2 are respectively defined and located at a second bending base 23 outside the power plate-shaped contact portion 42, and the second high-frequency differential signal plate-shaped contact pair 22 is bent from each second The base 23 is extended and formed and is located on the front side of the power plate-shaped contact portion 42.

Furthermore, the grounded transmission conductor 5 is a Y-shaped transmission conductor 50. One end of the Y-shaped transmission conductor 50 defines a grounded elastic contact portion 51, the other end defines a first ground plate-shaped contact portion 52, and the remaining end defines a third bending base 54. The second ground plate-shaped contact portion 53 extends from the third bent base 54 and is located at the front side of the low-frequency signal plate-shaped contact pair 32.

The detailed description is as follows, the first high frequency differential signal plate contact pair 12, the second high frequency differential signal plate contact pair 22, the low frequency signal plate contact pair 32, and the power plate contact portion 42 of each terminal group The first grounding plate-shaped contact portion 52 and the second grounding plate-shaped contact portion 53 form a transmission conductor docking portion group 72, and the two transmission conductor docking portion groups 72 are aligned up and down and arranged in two rows to make the USB A female The socket connector has upper and lower sockets and two sets of sockets.

Each terminal group further includes an auxiliary ground transmission conductor 6. The number of terminal groups in this embodiment is two, and one of the auxiliary ground transmission conductors 6 is arranged on the outside of the first high-frequency differential signal transmission conductor pair 1 (that is, on the first The high-frequency differential signal transmission conductor pair 1 is far away from the ground transmission conductor 5), and the other auxiliary ground transmission conductor 6 is arranged on the outside of the second high-frequency differential signal transmission conductor pair 2 (that is, on the second high-frequency differential signal transmission The conductor pair 2 is far away from the power transmission conductor 4), each auxiliary ground transmission conductor 6 defines an auxiliary ground elastic contact portion 61 at the rear end and a third ground plate contact portion 62 at the front end.

For further explanation, the auxiliary ground elastic contact portion 61 of one of the auxiliary ground transmission conductors 6 is located on the side of the first high-frequency differential signal welding pair 11 away from the ground elastic contact portion 51, and the third ground plate-shaped contact portion 62 is located in the first The outer side of the high-frequency differential signal plate-shaped contact pair 12 (that is, the side of the first high-frequency differential signal plate-shaped contact pair 12 away from the first ground plate-shaped contact portion 52) and the low-frequency signal plate-shaped contact pair 32, the power board The rear side of the contact portion 42 and the first ground plate contact portion 52; the auxiliary ground elastic contact portion 61 of the other auxiliary ground transmission conductor 6 is located on the side of the second high-frequency differential signal welding pair 21 away from the power welding portion 41, And the third ground plate contact portion 62 are located outside the second high frequency differential signal plate contact pair 22 (that is, on the side of the second high frequency differential signal plate contact pair 22 away from the power plate contact portion 42) and located The low-frequency signal plate contact pair 32, the power plate contact portion 42 and the rear side of the first ground plate contact portion 52.

In addition, the USB A female connector 10 conforms to the USB 3.0 Type A specification, and each terminal set includes a first high-frequency differential signal welding pair 11, a second high-frequency differential signal welding pair 21, and a low-frequency signal welding pair 31 A transmission conductor welding part group 71 composed of the power welding part 41, the ground elastic contact part 51 and the auxiliary ground elastic contact part 61. The transmission conductor welding part group 71 is arranged in a single row on the left and right on the same horizontal plane, and two auxiliary The ground elastic contact portions 61 are arranged adjacent to each other.

As shown in Figures 7 to 10, the shielding shell 9 contains the insulating gel 8 and is in electrical contact with the third ground plate-shaped contact portion 62, that is, the shielding case 9 and the third ground plate-shaped contact portion 62 are in contact with each other to be able to Electrically connected to each other, the shielding shell 9 has a plurality of pins 91, the transmission conductor welding portion group 71 and the conductive portion 101 of the circuit board 100 are welded to each other, and each pin 91 is inserted into each fixing hole of the circuit board 100 102. Install the USB A female connector 10 on the circuit board. Among them, the USB A female connector 10 of the present embodiment is a board type connector, but it is not limited to this, and the USB A female connector 10 may also be a sinker type connector.

As shown in Figures 1 to 10, the use state of the USB A female connector 10 of the present invention uses a terminal set including a first high-frequency differential signal transmission conductor pair 1, a second high-frequency differential signal transmission conductor pair 2, Low frequency signal transmission conductor pair 3, power transmission conductor 4 and ground transmission conductor 5; wherein, the second ground plate contact portion 53 is located between the first high frequency differential signal plate contact pair 12 and the second high frequency differential signal plate contact pair 22, to isolate the noise of the first high frequency differential signal plate contact pair 12 and the second high frequency differential signal plate contact pair 22, the power plate contact portion 42 is located between the low frequency signal plate contact pair 32 and the second Between the high-frequency differential signal transmission conductor pairs 2 to isolate the noise of the low-frequency signal plate contact pair 32 and the second high-frequency differential signal transmission conductor pair 2, the first ground plate contact portion 52 is located in the low-frequency signal plate contact pair 32 and the first high frequency differential signal transmission conductor pair 1 to isolate the noise of the low frequency signal plate contact pair 32 and the first high frequency differential signal transmission conductor pair 1. In this way, the potential difference between the power transmission conductor 4 and the ground transmission conductor 5 is used to isolate high-frequency and low-frequency noise, so as to achieve the purpose of optimizing noise interference at high frequencies.

In addition, the ground transmission conductor 5 is integrally formed with a first ground plate contact portion 52 and a second ground plate contact portion 53, thereby simplifying the components of the terminal group and making the terminal group convenient to manufacture and assemble.

In addition, the terminal set further includes an auxiliary ground transmission conductor 6. The third ground plate contact portion 62 of the auxiliary ground transmission conductor 6 is in electrical contact with the shielding shell 9, so that high frequency noise can pass through the third ground plate contact portion 62 It is transmitted to the shielding shell 9 and eliminated, achieving the purpose of high frequency optimization.

In summary, the USB A female connector of the present invention has never been seen in similar products and publicly used, and has industrial applicability, novelty and progress, and fully meets the requirements of patent application. Please check carefully and grant the patent for this case to protect the rights of the inventor.

1: The first high-frequency differential signal transmission conductor pair

11: The first high frequency differential signal welding pair

12: The first high-frequency differential signal plate contact pair

13: The first bending base

2: The second high-frequency differential signal transmission conductor pair

21: The second high frequency differential signal welding pair

22: The second high frequency differential signal plate contact pair

23: Second bending base

3: Low-frequency signal transmission conductor pair

31: Low frequency signal welding pair

32: Low frequency signal plate contact pair

4: Power transmission conductor

41: Power welding department

42: Power plate contact

5: Ground transmission conductor

50: Y-shaped transmission conductor

51: Ground elastic contact part

52: The first ground plate contact

53: second ground plate contact

54: third bending base

6: Auxiliary ground transmission conductor

61: Auxiliary grounding elastic contact part

62: third ground plate contact

71: Transmission conductor welding part group

72: Transmission conductor docking group

Claims (19)

A USB A female connector includes: a first high-frequency differential signal transmission conductor pair, a first high-frequency differential signal welding pair is defined at the back end, and a first high-frequency differential signal plate contact pair is defined at the front end; Two high-frequency differential signal transmission conductor pairs are arranged on one side of the first high-frequency differential signal transmission conductor pair, and the rear end of the second high-frequency differential signal transmission conductor pair is defined and located on the side of the first high-frequency differential signal welding pair A second high-frequency differential signal welding pair and a second high-frequency differential signal plate-shaped contact pair defined at the front end and located on one side of the first high-frequency differential signal plate-shaped contact pair; a low-frequency signal transmission conductor pair is set at Between the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, the rear end of the low-frequency signal transmission conductor pair is defined and located between the first high-frequency differential signal welding pair and the second high-frequency signal A low frequency signal welding pair and a front end defined between the differential signal welding pairs and a low frequency signal plate contact pair located behind the first high frequency differential signal plate contact pair and the second high frequency differential signal plate contact pair ; A power transmission conductor, located between the second high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, the power transmission conductor is defined at the rear end and located in the second high-frequency differential signal welding pair and the low-frequency signal A power supply welding portion between the welding pairs and a power supply plate contact portion defined at the front end and located at one side of the low frequency signal plate contact pair; a ground transmission conductor arranged between the first high frequency differential signal transmission conductor pair and the Between the low-frequency signal transmission conductor pairs, the rear end of the ground transmission conductor defines and is located at a grounding elastic contact portion between the first high-frequency differential signal welding pair and the low-frequency signal welding pair, and the front end extends juxtaposedly defined and located at the A first ground plate contact portion on the other side of the low-frequency signal plate contact pair and a second connection between the first high-frequency differential signal plate contact pair and the second high-frequency differential signal plate contact pair Floor-like contacts; and An auxiliary grounding transmission conductor arranged outside one of the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, and the rear end of the auxiliary grounding transmission conductor defines an auxiliary grounding elastic contact portion And the front end defines a third ground plate-shaped contact portion. The USB A female connector according to claim 1, wherein the ground transmission conductor is a Y-shaped transmission conductor, one end of the Y-shaped transmission conductor defines the ground elastic contact portion, and the other end defines the first ground plate-shaped contact portion , The remaining end defines a third bending base, and the second grounding plate-shaped contact portion extends from the third bending base and is located at the front side of the low-frequency signal plate-shaped contact pair. The USB A female connector according to claim 1 or 2, wherein the auxiliary ground elastic contact portion is located on a side of the first high-frequency differential signal welding pair away from the ground elastic contact portion, and the third ground plate contact The portion is located outside the first high-frequency differential signal plate-shaped contact pair and located at the back side of the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion and the first ground plate-shaped contact portion. The USB A female connector according to claim 1 or 2, wherein the auxiliary ground elastic contact portion is located on a side of the second high-frequency differential signal welding pair away from the power supply welding portion, and the third ground plate-shaped contact portion It is located outside the second high-frequency differential signal plate-shaped contact pair and located at the back side of the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion and the first ground plate-shaped contact portion. The USB A female connector according to claim 1 or 2, wherein the USB A female connector complies with the USB 3.0 Type A specification and includes a welding pair formed by the first high-frequency differential signal and the second high-frequency A transmission conductor welding part group consisting of a differential signal welding pair, the low-frequency signal welding pair, the power supply welding part, the ground elastic contact part and the auxiliary ground elastic contact part, the transmission conductor welding part group being arranged in a single row Horizontal surface. The USB A female connector according to claim 1, wherein the first high-frequency differential signal transmission conductor pair respectively defines and is located at a first bent base portion outside the first ground plate-shaped contact portion, and the first A pair of high-frequency differential signal plate-shaped contacts extends from each of the first bent bases and is located on the front side of the first ground plate-shaped contact portion. The second pair of high-frequency differential signal transmission conductors are respectively defined and located in the power supply A second bent base outside the plate-shaped contact portion, the second high-frequency differential signal plate-shaped contact pair extends from each of the second bent bases and is located on the front side of the power plate-shaped contact portion. A USB A female connector includes: at least one insulating gel; at least one terminal set fixed to the insulating gel, the terminal set includes: a first high-frequency differential signal transmission conductor pair, the rear end defines a first high-frequency The differential signal welding pair and the front end define a first high-frequency differential signal plate contact pair; a second high-frequency differential signal transmission conductor pair is arranged on one side of the first high-frequency differential signal transmission conductor pair. The rear end of the differential signal transmission conductor pair is defined by a second high frequency differential signal welding pair located on the side of the first high frequency differential signal welding pair and the front end is defined and located on the side of the first high frequency differential signal plate contact pair A second high-frequency differential signal plate-shaped contact pair; a low-frequency signal transmission conductor pair arranged between the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, the low-frequency signal transmission conductor A low-frequency signal welding pair defined at the rear end and located between the first high-frequency differential signal welding pair and the second high-frequency differential signal welding pair and a front end defined and located between the first high-frequency differential signal plate contact pair and A low-frequency signal plate-shaped contact pair at the rear side of the second high-frequency differential signal plate-shaped contact pair; a power transmission conductor arranged between the second high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, the A power supply welding portion defined at the rear end of the power transmission conductor and located between the second high-frequency differential signal welding pair and the low-frequency signal welding pair, and a power supply plate-shaped contact defined at the front end and located on one side of the low-frequency signal plate-shaped contact pair Part; and a grounded transmission conductor provided between the first high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, the ground transmission conductor is defined at the rear end and located in the first high-frequency differential signal welding pair and the A grounding elastic contact portion between the low-frequency signal welding pair, and a first grounding plate-shaped contact portion located on the other side of the low-frequency signal plate-shaped contact pair and located on the first A second grounded plate-shaped contact portion between the high-frequency differential signal plate-shaped contact pair and the second high-frequency differential signal plate-shaped contact pair; an auxiliary grounded transmission conductor arranged on the first high-frequency differential signal transmission conductor pair Outside of one of the pair of second high-frequency differential signal transmission conductors, the rear end of the auxiliary ground transmission conductor defines an auxiliary ground elastic contact portion and the front end defines a third ground plate-shaped contact portion; and a shielding shell housing The insulating colloid is in electrical contact with the third ground plate-shaped contact portion. The USB A female connector according to claim 7, wherein the ground transmission conductor is a Y-shaped transmission conductor, one end of the Y-shaped transmission conductor defines the ground elastic contact portion, and the other end defines the first ground plate-shaped contact portion , The remaining end defines a third bending base, and the second grounding plate-shaped contact portion extends from the third bending base and is located at the front side of the low-frequency signal plate-shaped contact pair. The USB A female connector according to claim 8, wherein the auxiliary ground elastic contact portion is located on a side of the first high-frequency differential signal welding pair away from the ground elastic contact portion, and the third ground plate-shaped contact portion is located The outer side of the first high-frequency differential signal plate-shaped contact pair and the rear side of the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion and the first ground plate-shaped contact portion. The USB A female connector according to claim 8, wherein the auxiliary ground elastic contact portion is located on a side of the second high frequency differential signal welding pair away from the power supply welding portion, and the third ground plate-shaped contact portion is located on the The second high-frequency differential signal plate-shaped contact pair is outside and located on the back side of the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion and the first ground plate-shaped contact portion. The USB A female connector according to claim 8, wherein the USB A female connector complies with USB 3.0 Type A specifications and includes a welding pair of the first high-frequency differential signal and the second high-frequency differential signal The welding pair, the low-frequency signal welding pair, the power supply welding portion, the grounding elastic contact portion and the auxiliary grounding elastic contact portion constitute a transmission conductor welding part group, the transmission conductor welding part group is arranged in a single row on the same horizontal plane . The USB A female connector according to claim 7, wherein the first high-frequency differential signal transmission conductor pair respectively defines and is located at a first bent base portion outside the first ground plate-shaped contact portion, and the first A pair of high-frequency differential signal plate-shaped contacts extends from each of the first bent bases and is located in front of the first ground plate-shaped contact portion, and the second pair of high-frequency differential signal transmission conductors are respectively defined and located on the power plate-shaped contact A second bent base outside the part, the second high frequency differential signal plate contact pair extends from each of the second bent bases and is located on the front side of the power plate contact part. A USB A female connector, comprising: two terminal groups, each terminal group includes: a first high-frequency differential signal transmission conductor pair, the rear end defines a first high-frequency differential signal welding pair and the front end defines a first High-frequency differential signal plate-shaped contact pair; a second high-frequency differential signal transmission conductor pair is arranged on one side of the first high-frequency differential signal transmission conductor pair, and the rear end of the second high-frequency differential signal transmission conductor pair is defined and located A second high-frequency differential signal welding pair on one side of the first high-frequency differential signal welding pair and a second high-frequency differential signal plate contact defined by the front end and located on one side of the first high-frequency differential signal plate contact pair Pair; a low-frequency signal transmission conductor pair, located between the first high-frequency differential signal transmission conductor pair and the second high-frequency differential signal transmission conductor pair, the low-frequency signal transmission conductor pair is defined at the rear end and located at the first high A low frequency signal welding pair and a front end defined between the frequency difference signal welding pair and the second high frequency difference signal welding pair are located between the first high frequency difference signal plate contact pair and the second high frequency difference signal plate contact A low-frequency signal plate-shaped contact pair on the rear side; a power transmission conductor arranged between the second high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair. The rear end of the power transmission conductor is defined and located on the first A power supply welding part between a high frequency differential signal welding pair and the low frequency signal welding pair and a power supply plate contact part defined at the front end and located on one side of the low frequency signal plate contact pair; A grounding transmission conductor is arranged between the first high-frequency differential signal transmission conductor pair and the low-frequency signal transmission conductor pair, and the rear end of the ground transmission conductor is defined and located between the first high-frequency differential signal welding pair and the low-frequency signal welding pair A ground elastic contact portion between the pairs, and a first ground plate-shaped contact portion located on the other side of the low-frequency signal plate-shaped contact pair and a first ground plate-shaped contact portion located on the first high-frequency differential signal plate-shaped contact pair that are defined and located on the other side A second ground plate-shaped contact portion with the second high-frequency differential signal plate-shaped contact pair; and an auxiliary ground transmission conductor, one of which is provided on the first high-frequency differential signal transmission conductor pair The other auxiliary ground transmission conductor is arranged on the outer side of the second high-frequency differential signal transmission conductor pair. The rear end of each auxiliary ground transmission conductor defines an auxiliary ground elastic contact portion and the front end defines a third ground plate shape Contact portions; wherein each of the terminal groups consists of the first high-frequency differential signal plate-shaped contact pair, the second high-frequency differential signal plate-shaped contact pair, the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion, The first grounded plate-shaped contact portion and the second grounded plate-shaped contact portion form a transmission conductor docking section group, and the two transmission conductor docking section groups are aligned up and down to form two rows. The USB A female connector according to claim 13, wherein each of the ground transmission conductors is a Y-shaped transmission conductor, one end of each Y-shaped transmission conductor defines the ground elastic contact portion, and the other end defines the first connection The remaining end of the floor-shaped contact portion defines a third bent base, and each of the second grounded plate-shaped contact portions extends from the third bent base and is located on the front side of the low-frequency signal plate-shaped contact pair. The USB A female connector according to claim 13 or 14, wherein the auxiliary ground elastic contact portion of one of the auxiliary ground transmission conductors is located on the side of the first high-frequency differential signal welding pair away from the ground elastic contact portion , And the third ground plate contact portion is located outside the first high frequency differential signal plate contact pair and located on the low frequency signal plate contact pair, the power plate contact portion and the first ground plate contact portion Back side. The USB A female connector according to claim 15, wherein the auxiliary ground elastic contact portion of the other auxiliary ground transmission conductor is located on the side of the second high-frequency differential signal welding pair away from the power supply welding portion, and The third ground plate-shaped contact portion is located outside the second high-frequency differential signal plate-shaped contact pair and at the back side of the low-frequency signal plate-shaped contact pair, the power plate-shaped contact portion and the first ground plate-shaped contact portion. The USB A female connector according to claim 16, wherein the USB A female connector conforms to the USB 3.0 Type A specification, and each terminal set includes the first high-frequency differential signal soldered pair, the first Two high-frequency differential signal welding pairs, the low-frequency signal welding pair, the power supply welding part, the grounding elastic contact part and the auxiliary grounding elastic contact part are composed of a transmission conductor welding part group. The USB A female connector according to claim 17, wherein the two transmission conductor welding part groups are arranged in a single row on the left and right on the same horizontal plane, and the two auxiliary grounding elastic contact parts are arranged adjacent to each other. The USB A female connector according to claim 13, wherein the first high-frequency differential signal transmission conductor pair is respectively defined and located at a first bent base portion outside the first ground plate contact portion, and the first A pair of high-frequency differential signal plate-shaped contacts extends from each of the first bent bases and is located in front of the first ground plate-shaped contact portion, and the second pair of high-frequency differential signal transmission conductors are respectively defined and located on the power plate-shaped contact A second bent base outside the part, the second high frequency differential signal plate contact pair extends from each of the second bent bases and is located on the front side of the power plate contact part.

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