TW201429075A - Electrical connector and terminal cluster thereof - Google Patents

Abstract

The present invention discloses a terminal cluster of an electrical connector, comprising: a terminal array used to form on the a connector surface. The terminal array includes a plurality of terminal rows aligned one after another, wherein each of the terminal rows includes at least one signal transmitting unit and ground unit. Each of the signal transmitting unit and the ground unit are arranged in an alternative form with each other in the same row. Each of the signal transmitting unit and the ground unit in one row are respectively aligned to the ground unit and signal transmitting unit in another row. By means of the terminal array, crosstalk between terminals or from terminals perse can be decreased while the exploit of the ground unit is decreased and that of the signal transmitting unit is increased.

Description

Terminal cluster and electrical connector for electrical connector

The present invention relates to a terminal cluster and an electrical connector for an electrical connector, and more particularly to a terminal cluster and electrical connector for an electrical connector incorporating an array and structure of terminal arrangements.

The configuration of the conventional electrical connector on the terminal cluster mainly includes two aspects, one is the array arrangement of the terminal end electrical contacts and the structure of the terminal body, and an electrical connection with good transmission quality and low crosstalk interference is achieved. The configuration on the terminal cluster is extremely important.

However, referring to FIG. 1A and FIG. 1B, the two figures involve most of the appearance of the electrical connector terminal cluster. FIG. 1A illustrates a conventional electrical contact array F, which is a longitudinal Y. The horizontal X is configured in a 7x7 style and includes a plurality of ground GPs and signal terminals SP. However, the ground terminal GP used in this mode is too much, and the signal terminal SP is relatively small. For example, the sub-electrical contact array F1 can be found that the number of signal terminals in one unit terminal is small, and the ground terminal GP is biased. Many, if not so, can reduce the effect of crosstalk interference accepted by the general user, so the conventional practice often leads to the problem of excessive volume of the electrical connector.

The structure of the ground terminal GP or the signal terminal SP itself is as shown in FIG. 1B. Especially for the signal terminal SP, the first terminal 1 and the second terminal 2 have substantially the same pattern and structure, and the two are from beginning to end. The parts are substantially parallel to each other. For example, suppose a first transverse line C1 cuts two first cross-cut points (11, 21) at the left end of the first terminal 1 and the second terminal 2 which are arranged side by side and have the same structure. The phase between the tangent points (11, 21) The distance is the stitch pitch P; and if there is a second transverse line C2, the second cross-cut points (12, 22) are cut out in the middle sections of the first terminal 1 and the second terminal 2, respectively. The relative distance between the tangent points (12, 22) is also substantially equivalent to the stitch pitch P. This is a general practice and structure of the terminal structure in the topic of terminal clustering.

However, it can be found that even if the electrical contact array F initially reduces the crosstalk interference or other external electromagnetic interference (EMI) by a large number of ground terminals GP, it is adjacent to the terminals or The terminal itself still has cross-talk interference problems, especially when the electrical connector is used for high-speed data transmission (such as 3 Gbps). In order to transmit a large amount of data in a short time, the electrical signal needs a higher frequency. Wide, so the operating frequency of the electrical signal is also very high, possibly between 3 GHz and 5 GHz or higher. As the operating frequency increases, the crosstalk is more serious, which will affect the integrity of data transmission or bit error. (bit error).

Therefore, if the perfect shielding between adjacent terminals cannot be achieved to reduce crosstalk, the operating frequency of the electrical signal is reduced, and the data transmission rate is bottlenecked and cannot be greatly improved. Moreover, even if the shielding between adjacent terminals can be effectively performed, the volume and weight of the electrical connector cannot be effectively reduced due to the increase of the shielding component or the grounding component, which obviously violates the development of miniaturization of various electronic components. The trend, but also in vain increase manufacturing costs.

The reason is that the present inventors have felt the above-mentioned problems, and have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is rational in design and effective in improving the above-mentioned defects.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a terminal cluster of electrical connectors that integrates the configuration of terminal clusters to improve the general transmission efficiency of conventional electrical connectors and the disadvantages of crosstalk interference. In addition to reducing interference and improving signal transmission quality, it is also possible to optimize the efficiency of signal transmission by eliminating redundant grounding barriers and increasing electrical contacts per unit area.

To achieve the above object, the present invention provides a terminal cluster of an electrical connector for forming on a shell surface, and for reducing external crosstalk interference of the terminal of the electrical connector and the terminal of the electrical connector, including a terminal array region comprising a plurality of terminal columns arranged side by side in a longitudinal direction, wherein each of the terminal columns comprises at least one signal transmission unit and at least one grounding unit, the at least one signal transmission unit and the at least one grounding The units are arranged alternately in the horizontal direction; and the signal transmission unit and the grounding unit of each of the terminal columns are alternately arranged longitudinally with the grounding unit and the signal transmission unit of any one of the adjacent terminal columns.

To achieve the above object, the present invention also provides an electrical connector comprising the terminal cluster of the electrical connector as described above, the electrical connector comprising: a dielectric housing having the signal transmission unit and the grounding unit disposed therein The terminal array region is formed on one surface of the dielectric housing.

In summary, the present invention can effectively improve the above-mentioned transmission efficiency and avoid crosstalk interference by integrating the terminal clusters on the arrangement structure.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

Referring to FIG. 2A, FIG. 2B and FIG. 2C, the present invention provides a terminal cluster CL of an electrical connector, which is formed on a shell surface (not shown) and used to lower the terminals of the electrical connector. External and crosstalk interference of the terminals of the electrical connector itself.

The terminal cluster CL is as shown in FIG. 2A. In a preferred example, but not limited thereto, it is composed of a first terminal group 10 and a second terminal group 20, and each terminal group is composed of The bottom includes five first terminals, namely a first terminal (11, 12, 13, 14 and 15) and a second terminal (21, 22, 23, 24 and 25), thus defining a terminal of 2 x 5 The group is formed to form the terminal array region T. As shown in FIG. 2A and FIG. 2B, the terminal cluster CL can be covered by a dielectric housing 1 to form an electrical connector. The dielectric housing 1 can be integrally formed by mold injection, but not Limited. Therefore, in the preferred embodiment, as shown in FIG. 2B, the dielectric housing 1 is exemplified by the first housing 30, the second housing 40, and the third housing 50 that are not integrally formed. The housing 50 also has a plurality of through holes 51. The terminal array area T is covered by the third housing 50, and an electrical connection interface is formed with the through holes 51 on either side of the third housing 50.

In the terminal array area T, the first terminal 11 and the second terminal 21 are taken as an explanation, and the remaining first terminals and the second terminals are analogized. The first terminal 11 and the second terminal 21 correspond to the through hole 51 of the third casing 50, and the electrical connection interface is formed as a female interface, such as a female interface, which can be a gold finger female seat or has a holding function. The female seat, but also because the first terminal 11 and the end of the second terminal 21 are changed in form, but can be other specifications of the interface, such as a male plug interface, and, if it is a male plug interface, can be a gold finger male plug, Fisheye stitches, or any stitches.

Referring to FIG. 2A, FIG. 2B and FIG. 2C, the terminal array area T includes a plurality of terminal columns (slightly omitted) arranged side by side according to the vertical axis Y (longitudinal direction), as shown in FIG. 2C, and the horizontal axis X ( The terminal configuration of the horizontal direction is as follows, and the 2 x 5 terminal array area T of the vertical terminal is configured as 5, but is not limited to this configuration. Each of the terminal columns includes at least one signal transmission unit S and at least one ground unit G, and the signal transmission unit S and the ground unit G are alternately arranged in a horizontal direction in any one of the terminal columns. In other words, the arrangement of the first column of the terminal arrays in the terminal array area T of FIG. 2C is SG. If the lateral direction is extended and lengthened, the arrangement of the signal transmission unit S and the grounding unit G will be SGSGSGSG. However, the terminal column is not limited to only the signal transmission unit S as the beginning or the end, and it is not limited to the ground unit G as the beginning or the end.

In addition, the signal transmission unit S and the grounding unit G of each of the terminal columns are alternately arranged in a longitudinal direction with the grounding unit G and the signal transmission unit S of any one of the adjacent terminal columns. Therefore, in other words, in the terminal array region T, any one of the terminal columns alternately arranged by the signal transmission unit S and the grounding unit G has a vertical terminal (upper or lower) if there is another column of terminal columns arranged side by side, the original terminal Each of the signal transmission units S of the column is also paired with a corresponding ground unit G of the other column in the longitudinal side-by-side terminal column.

Therefore, the above arrangement is applicable to 2 x 2, 2 x 3, 3 x 2, 3 x 3, 2 x 4, 5 x 2, 5 x 5, 7 x 7 ... The terminal array area T of a plurality of rows and sizes is not limited in its array size. Preferably, it can be observed from the above configuration rule that among the plurality of terminal columns, the sum of the number of signal transmission units S and the number of grounding units G between any two adjacent terminal columns may be equal. . Peripheral of terminal array area T A plurality of peripheral grounding units (not shown) may be provided to provide further shielding for the signal transmission unit located around the terminal array area T, such as the first terminal 23 serving as the signal transmission unit S in FIG. 2C. It can be found that the left side is outside the terminal array area T. At this time, a peripheral grounding unit can be arranged in the first terminal 23, thereby providing a more complete shielding. Similarly, the first terminal 11 and the second terminal 22 Wait, it can be.

Preferably, a first terminal group 10 and a second terminal group 20 are defined in a terminal cluster CL, and the first terminal 11 of the first terminal group 10 and the second terminal 21 of the second terminal group 20 are For example, the first terminal 11 can be used to define a signal transmission unit S, and the second terminal 21 can be used to define a grounding unit G. Then, the signal transmission unit S can be a single-ended signal transmission terminal, and the grounding unit G can be a ground terminal.

Thus, it can be seen from FIG. 2B and FIG. 2C that the first terminals (11, 13, 15) and the second terminals (22, 24), both of which are used as the signal transmission unit S, are single-ended for transmitting single-ended signals. Signal transmission terminal. It is arranged in the terminal array region T in such a manner that the vertical axis Y is substantially zigzag from top to bottom and left to right-left-right-left. The first terminal (12, 14) and the second terminal (21, 23, 25), which are both the grounding unit G, are both a grounding terminal, and the vertical axis Y in the terminal array region T is substantially rightward from the top to the bottom. - Left-right-left-right zigzag arrangement. The arrangement of the zigzag shapes of the two is substantially in a complementary zigzag arrangement relationship in the terminal array region T.

2B and FIG. 2C are directly analogized to FIG. 3A and FIG. 3B. Intuitively, the terminal array region T′ includes the terminal cluster CL and the terminal cluster CL′, so the number of rows and columns of the terminal array region T′ is changed to 4 x 5, and the letter The number transmission unit S or the ground unit G may also be commonly defined by the first terminal 11 and the second terminal group 21 in the terminal cluster CL. The signal transmission unit S can also be a differential signal terminal pair, including the first terminal 11 and the second terminal 21. In other words, the first terminal 11 and the second terminal 21 can together form a differential signal terminal pair (not shown). The differential signal terminal pair includes a positive differential signal terminal, denoted by S(+), and a negative differential signal terminal, denoted by S(-).

It should be noted here that although the first terminals (11, 13, 15) of different parts in FIG. 3A are named as the first terminal group 10, and in this embodiment belong to the signal transmission unit S, It is not limited to transmitting the same signal. The grounding unit G can also be a pair of grounding terminals, including the first terminal 11' and the second terminal 21', as illustrated by the first ground G1 and the second ground G2 of FIG. 3B. Therefore, in general, as long as the foregoing configuration of the grounding unit G and the signal transmission unit S in the terminal array region T is satisfied, how many terminals define the grounding unit G or the signal transmission unit S is not limited. However, in the embodiment of the differential signal terminal pair and the ground terminal pair, the grounding unit G and the signal transmission unit S each need to be defined by two terminals, but the signal transmission unit S and the grounding unit G are in the terminal array area. The configuration of T is basically in accordance with the configuration and is equivalent to the configuration when the signal transmission unit S is defined only by the first terminal 11 and the ground unit G is defined only by the second terminal 21 (see FIG. 3B). In addition, it is to be noted that the 4 x 5 terminal array region T' is not only constituted by the terminal cluster CL and the terminal cluster CL'.

Referring to FIG. 2A, FIG. 3A, FIG. 3B and FIG. 4, preferably, in the terminal cluster CL of the present invention, the first terminal 11 and the second terminal 12 which are paired with each other in FIG. 2A are example. First terminal 11 from its The first terminal end portion 111 includes a first contact end portion 111 extending from the terminal array region T, the first neck portion 112 and the first extension portion 113. The second terminal 21 is sequentially extended from the terminal array region T from one end thereof. A second contact end portion 211 corresponding to the first contact end portion 111, a second neck portion 212 corresponding to the first neck portion 112, and a second extension portion 213 corresponding to the first extension portion 113 are formed.

The first contact end portion 111 and the second contact end portion 211 are spaced apart from each other by a first spacing D1. The first extending portion 113 and the second extending portion 213 are apart from each other by a second spacing D2, and the first spacing D1 is greater than the second spacing D2. . Thereby, an electromagnetic coupling effect is generated between the first extension portion 113 and the second extension portion 213 which are relatively close to each other, so that the transmitted signal can obtain better coating property, thereby reducing external and self-interference problems. The problem of improving crosstalk interference between the terminals is achieved, and the signal transmission quality of the electrical connector is effectively improved. Moreover, preferably, the first extending portion 113 and the second extending portion 213 each have a wide surface, and the wide faces of the two may face each other.

Preferably, the ratio between the first pitch D1 and the second pitch D2 may be 40:7 (the ratio is 5.714) to a ratio of 40:15 (the ratio is 2.667). Or optimally, the first spacing D2 may be 2 mm and the second spacing may be 0.55 mm. The first terminal 11 and the second terminal 21 can form a differential signal terminal pair, and the differential signal terminal pair includes a positive differential signal terminal, such as S(+) of FIG. 3B and a negative differential signal terminal, such as The S (-) of FIG. 3B is used to transmit a differential signal; or the first terminal 11 and the second terminal 21 may each be a single-ended signal transmission terminal for transmitting a single-ended signal, respectively. The first terminal 11 and the second terminal 21 of the structure may also serve as a ground terminal pair. I will not repeat them here.

Therefore, it can be understood from FIG. 4 that in order to achieve the problem of improving the crosstalk interference between the terminals, the terminal cluster CL of the present invention must have at least the first contact end portion 111 between the terminals of the signal transmission unit S. The first spacing D1 between the second contact ends 211 is greater than the structural feature of the second spacing D2 between the first extensions 113 and the second extensions 213. Taking the first terminal 11 as an example, if the first neck portion 112 between the first contact end portion 111 and the first extending portion 113 is connected, the first neck portion 112 is not limited in any particular manner or structure. The connection between the contact end portion 111 and the first extension portion 113 is the same, and the second neck portion 212 is also the same.

For convenience of description, as shown in FIG. 4, the present invention is described with respect to the first terminal 11 and the second terminal 21 which are symmetric with respect to the axis of symmetry AX at a plan view angle, and can be analogized to FIG. 2A. Other than the first terminal 11 and the second terminal 21, but not limited to this symmetrical structure. Taking the first contact end portion 111 as a starting point, the first neck portion 112 is bent inwardly toward the axis of symmetry AX and is connected to the first extension portion 113, and the second neck portion 212 is symmetrical to the first portion. The neck 112 is also bent inwardly toward the axis of symmetry AX and then extends to the second extension 213. Therefore, in order to make the first pitch D1 larger than the second pitch D2, in the manufacture of the terminal, the middle section of any of the terminals is usually punched and pressed to form a direction toward the other terminal or a direction toward the axis of symmetry AX. The first neck portion 112 and the second neck portion 212 are bent inward. Thus, the second spacing D2 between the first extending portion 113 and the second extending portion 213 of the rear portion of the first neck portion 112 and the second neck portion 212 is naturally smaller than the first spacing D1.

Preferably, the first terminal 11 can further be further from the first extension 113 A third neck portion 114 and a third contact end portion 115 are sequentially extended. In other words, the first contact end portion 111 and the third contact end portion 115 are respectively located at opposite ends of the first terminal 11.

Similarly, the second terminal 21 may further extend from the second extending portion 213 to a fourth neck portion 214 corresponding to the third neck portion 114 and a fourth contact end portion corresponding to the third contact end portion 115. 215. In the present embodiment, the third contact end portion 115 and the fourth contact end portion 215 are both fish eye pins, but are not limited thereto. The third contact end portion 115 and the fourth contact end portion 215 are the other end portions of the first end 11 and the second terminal 21 of the present invention, and can be any type, form of electrical contact, pin, female plug or male plug. However, the most important thing is that the third contact end portion 115 and the fourth contact end portion 215 are also spaced apart from each other by a third spacing D3, and the third spacing D3 must be greater than the second spacing D2, and between the third spacing D3 and the first spacing D1. The relative size is not limited, but preferably, the third pitch D3 may be equal to the first pitch D1. The structure of the third neck portion 114 and the fourth neck portion 214 or the structure between them is the same as the example of the first neck portion 112 and the second neck portion 212, and will not be described again.

It is to be noted that the definition and measurement manner of the first pitch D1, the second pitch D2, and the third pitch D3 are as follows: the first pitch D1 is taken as an example, and is based on the central axis of the first contact end portion 111. (As shown in FIG. 4, the reference numeral is omitted), the distance between the central axis of the second contact end portion 211 (as shown in FIG. 4, the numeral is omitted) is defined and measured according to this, and the second pitch D2 and the third pitch D3 are also in this way.

Preferably, the present invention is exemplified by a terminal cluster suitable for a right angle adapter in an electrical connector, such that the first extension 113 may further have a first bent portion 1131, and the first bent portion 1131 is generally Make a near right angle The bend. As shown in FIG. 2A, the bending is downward, but not limited thereto, and may be bent upward, toward the paper surface of FIG. 2A or in the direction of the paper surface of FIG. 2A, and the angle of bending is not limited. Referring back to FIG. 2A, the first bent portion 1131 can be used to guide the direction in which the third contact end portion 115 faces to guide the third contact end portion 115 and the first contact end portion 111 toward each other. Lead to the relative relationship of each other. The second extension portion 213 further has a second bending portion 2131 corresponding to the first bending portion 1131. Therefore, the second bending portion 2131 drives and guides the fourth contact end portion 215. The third contact end portion 115 and the first contact end portion 111 are each guided in a direction perpendicular to each other. However, no matter how the first bent portion 1131 and the second bent portion 2131 are bent, the final result must conform to the third pitch D3 of the present invention as described above as being smaller than the second pitch D2.

However, the structure of the first bent portion 1131 described above may become unnecessary if it is not used in a right angle adapter; and the second contact 25 in the lower portion of FIG. 2A is taken as an example to understand the third contact thereof. The end portion 255 can be finally turned downward, but the third neck portion 254 extends directly downward from the first extending portion 253, and it can be found that the structural features of the first bent portion 2531 exist, but are not obvious. .

Referring to FIG. 5, the invention obtained by the above technical means proves that the first pitch D1 is greater than the second pitch D2 (FIG. 4) by the test data of FIG. 5, and the terminal itself or the terminal itself can be effectively reduced. Crosstalk interference between terminals. The vertical axis of Fig. 5 is the noise value of the crosstalk interference, and the unit is decibel (dB); the horizontal axis is the frequency of the electrical signal used, and the unit is kilohertz (GHz); the first curve L1 is the use of the present invention. The noise value of the crosstalk interference generated when the frequency electrical signal is transmitted. The second curve L2 is a conventional terminal The noise value of the crosstalk interference generated when the frequency electrical signal is transmitted can be seen from FIG. 5, and the crosstalk noise value caused by the signal transmission through the present invention is smaller than the conventional terminal. Therefore, the present invention can effectively reduce the noise value of crosstalk interference, and should be significantly helpful in improving the signal to noise ratio (signal-to-noise ratio, Signal/Noise, S/N), especially suitable for the ground terminal. Fewer electrical connectors are particularly suitable for use with electrical connectors having the associated configuration of terminal array regions T as described above.

Referring to FIG. 2B, the present invention further provides an electrical connector comprising the terminal cluster CL of the electrical connector as described above, and the number of rows and columns of the terminal cluster CL is not limited. The electrical connector includes: a dielectric housing 1 in which a signal transmission unit S and a ground unit G are disposed, which can be used to fix respective terminals constituting the signal transmission unit S and the ground unit G, and when the signal transmission unit S When the pair is a differential signal terminal, the first pitch D1, the second pitch D2, or the third pitch D3 between the extension portions of each of the sets of positive differential signal terminals S(+) and negative differential signal terminals S(-) can be respectively fixed. . And the signal transmission unit S and the grounding unit G can of course form a terminal array similar to the terminal array region T (eg, FIG. 2B, FIG. 2C) or the terminal array region T' (eg, FIG. 3B), and the electrical connector On either side of the dielectric housing I, an electrical connection interface is formed.

In summary, the present invention can effectively improve the above-mentioned transmission efficiency and avoid crosstalk interference by integrating the terminal clusters on the arrangement structure, and because the innately required grounding components are small, it can be achieved. The advantages of reducing weight and volume are also helpful in the miniaturization of electrical connectors.

However, the above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents thereof are all included in the scope of the present invention. Protection In the encirclement, he is given to Chen Ming.

this invention

10‧‧‧First terminal group

10’‧‧‧First Terminal Group

11‧‧‧First terminal

111‧‧‧First contact end

112‧‧‧First neck

1121‧‧‧First torsion

113‧‧‧First Extension

1131‧‧‧First bend

114‧‧‧ Third neck

115‧‧‧3rd contact end

11’‧‧‧First terminal

12‧‧‧First terminal

12’‧‧‧First terminal

13‧‧‧First terminal

13’‧‧‧First terminal

14‧‧‧First terminal

14’‧‧‧First terminal

15‧‧‧First terminal

15'‧‧‧First terminal

20‧‧‧second terminal group

20’‧‧‧Second terminal group

21‧‧‧second terminal

211‧‧‧second contact end

212‧‧‧second neck

2121‧‧‧Second torsion

213‧‧‧Second extension

2131‧‧‧Second bend

214‧‧‧Four neck

215‧‧‧4th contact end

21’‧‧‧second terminal

22‧‧‧second terminal

22’‧‧‧second terminal

23‧‧‧second terminal

23’‧‧‧second terminal

24‧‧‧second terminal

24'‧‧‧second terminal

25‧‧‧second terminal

25'‧‧‧second terminal

251‧‧‧Second contact end

252‧‧‧second neck

253‧‧‧Second extension

2531‧‧‧Second bend

254‧‧‧Four neck

255‧‧‧4th contact end

30‧‧‧First housing

40‧‧‧ second housing

50‧‧‧ third housing

51‧‧‧through hole

AX‧‧‧ axis of symmetry

CL‧‧‧ terminal cluster

CL’‧‧‧ terminal cluster

G‧‧‧ Grounding unit

G1‧‧‧ Grounding terminal

G2‧‧‧ Grounding terminal

I‧‧‧ dielectric housing

L1‧‧‧ first curve

L2‧‧‧ second curve

N‧‧‧Narrow

S‧‧‧Signal transmission unit

S(+)‧‧‧Positive differential signal terminal

S(-)‧‧‧negative differential signal terminal

T‧‧‧Terminal Array Area

T’‧‧‧Terminal Array Area

W‧‧‧Face

D1‧‧‧first spacing

D2‧‧‧second spacing

D3‧‧‧ third spacing

Prior art

1‧‧‧First terminal

11‧‧‧ first crosscutting point

12‧‧‧second crosscutting point

2‧‧‧second terminal

21‧‧‧ first crosscutting point

22‧‧‧second crosscutting point

C1‧‧‧ first cross-cutting line

C2‧‧‧second transverse line

F‧‧‧Electrical contact array

F1‧‧‧ subarray

GP‧‧‧ grounding terminal

P‧‧‧pin spacing

SP‧‧‧ signal end

1A is a schematic diagram of a signal terminal and a grounding terminal of a conventional electrical connector terminal cluster; FIG. 1B is a schematic diagram of a terminal of a conventional electrical connector terminal cluster; FIG. 2A is a perspective view of a terminal cluster of the electrical connector of the present invention; FIG. 2C is a schematic view showing the configuration of a signal transmission unit and a grounding unit of a terminal cluster of the electrical connector of the present invention; FIG. 3A is a front view of another embodiment of the electrical connector of the present invention; FIG. 2 is a schematic diagram of another embodiment of a signal transmission unit and a grounding unit configured for a terminal cluster of the electrical connector of the present invention; FIG. 4 is a schematic diagram of a terminal cluster of the electrical connector of the present invention; and FIG. A test data graph that reduces the effects of crosstalk interference.

T’‧‧‧Terminal Array Area

S‧‧‧Signal transmission unit

S(+)‧‧‧Positive differential signal terminal

S(-)‧‧‧negative differential signal terminal

G‧‧‧ Grounding unit

G1‧‧‧ Grounding terminal

G2‧‧‧ Grounding terminal

Claims (10)

A terminal cluster of an electrical connector is formed on a casing surface for reducing external interference of the terminal of the electrical connector and the terminal of the electrical connector, comprising: a terminal array region, comprising a plurality of terminal arrays arranged side by side in a longitudinal direction, wherein each of the terminal columns comprises at least one signal transmission unit and at least one grounding unit, wherein the at least one signal transmission unit and the at least one grounding unit are alternately arranged in a lateral direction; And the signal transmission unit and the grounding unit of each of the terminal columns are respectively arranged in a longitudinal direction alternately with the grounding unit and the signal transmission unit of any one of the adjacent terminal columns. The terminal cluster of the electrical connector of claim 1, wherein the sum of the number of signal transmission units and the number of grounding units between any two adjacent terminal columns is equal. The terminal cluster of the electrical connector of claim 1, wherein the signal transmission unit is a single-ended signal transmission terminal, and the grounding unit is a ground terminal. The terminal cluster of the electrical connector of claim 1, wherein the signal transmission unit is a differential signal terminal pair, the grounding unit is a ground terminal pair, and the differential signal terminal pair comprises a positive differential signal terminal and A negative differential signal terminal. The terminal cluster of the electrical connector of claim 4, wherein the peripheral portion of the terminal array region is further provided with a plurality of peripheral grounding units for providing shielding for the signal transmission unit around the terminal array region. The terminal cluster of the electrical connector according to claim 1 of the patent application, The signal transmission unit further includes a pair of first terminals and a second terminal. The first terminal includes a first contact end portion, a first neck portion and a first extension portion from the end thereof. The second terminal includes a second contact end portion corresponding to the first contact end portion, a second neck portion corresponding to the first neck portion, and a second portion corresponding to the first extension portion. An extension portion, the first contact end portion and the second contact end portion are spaced apart from each other by a first spacing, the first extension portion and the second extension portion are spaced apart from each other by a second spacing, the first spacing being greater than the second spacing . The terminal cluster of the electrical connector of claim 6, wherein the first pitch is 2 mm, and the second pitch is 0.55 mm, wherein the first terminal and the second terminal form a difference a signal terminal pair, the differential signal terminal pair includes a positive differential signal terminal and a negative differential signal terminal; or the first terminal and the second terminal are both single-ended signal transmission terminals. The terminal cluster of the electrical connector of claim 6, wherein a ratio of a ratio between the first pitch and the second pitch is between 5.714 and 2.667, and the first terminal and the second terminal are configured. a differential signal terminal pair comprising a positive differential signal terminal and a negative differential signal terminal; or the first terminal and the second terminal are each a single stack signal transmission terminal. The terminal assembly of the electrical connector of claim 6, wherein the first terminal further extends from the first extension portion to a third neck portion and a third contact end portion, the second terminal Further extending from the second extension portion to a fourth neck portion corresponding to the third neck portion and a fourth contact end portion corresponding to the third contact end portion, the third contact end portion and the fourth contact end portion are spaced apart from each other by a third pitch, the third pitch being greater than the second pitch, the first extension The portion further includes a first bent portion, and the second extending portion further includes a second bent portion corresponding to the first bent portion. An electrical connector comprising a terminal cluster of an electrical connector according to any one of claims 1 to 9, the electrical connector comprising: a signal transmission unit and a ground disposed therein a dielectric housing of the unit, the terminal array region being formed on one side of the dielectric housing.