Electrical connector and connector assembly

Abstract

The application discloses an electric connector and a connector combination, the electric connector comprising: a first insulator, a plurality of first conductive terminals arranged on the first insulator, the first conductive terminals having a first contact part, a first connecting part and a first lead-in part connected in sequence, the first contact part being located in front of the first lead-in part, the plurality of first conductive terminals comprising two differential signal pairs arranged along a left-right direction and arranged adjacently, one pair being a first differential signal pair and the other pair being a second differential signal pair, the first contact part of the first differential signal pair being offset on one side of the first contact part of the second differential signal pair in a front-rear direction, and the first lead-in part of the first differential signal pair being offset on the same side of the first lead-in part of the second differential signal pair in the front-rear direction, the distance between the signal pairs being enlarged, so that the crosstalk between the two adjacent differential signal pairs is reduced, and the effect of improving high frequency is achieved.

Description

Technical Field

[0001] This invention relates to an electrical connector and connector assembly, and more particularly to an electrical connector and connector assembly for improving high-frequency operation. Background Technology

[0002] An existing electrical connector includes a first insulator and a plurality of first conductive terminals disposed on the first insulator. Each first conductive terminal has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The plurality of first conductive terminals include two differential signal pairs arranged adjacent to each other in a left-right direction. The plurality of first contacts of the two adjacent differential signal pairs are aligned in a left-right direction. The plurality of first conductive portions of the two adjacent differential signal pairs are aligned in a left-right direction. The plurality of first connecting portions of the two adjacent differential signal pairs are aligned in a left-right direction.

[0003] In the above structure, multiple first conductive terminals are arranged in a row. The shortest distance between two adjacent differential signal pairs is determined by the pitch and molding process. Therefore, the crosstalk improvement is limited and the electromagnetic crosstalk between two adjacent differential signal terminals cannot be reduced according to actual needs, affecting the high-frequency performance of the electrical connector.

[0004] Therefore, it is necessary to design a new electrical connector and connector combination to overcome the above problems. Summary of the Invention

[0005] To address the problems of the prior art, the present invention aims to provide a new electrical connector and connector assembly that staggers the contact portions and conductive portions of two adjacent differential signal pairs, thereby increasing the distance between signal pairs and reducing crosstalk between adjacent differential signal pairs, thus improving the high-frequency effect.

[0006] To achieve the above objectives, the present invention provides an electrical connector, comprising: a first insulator; and a plurality of first conductive terminals disposed on the first insulator, each first conductive terminal having a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion, the first contact portion being located in front of the first conductive portion, the plurality of first conductive terminals including two differential signal pairs arranged adjacent to each other in a left-right direction, one of the differential signal pairs being defined as a first differential signal pair and the other as a second differential signal pair, the first contact portion of the first differential signal pair being offset to one side in a front-back direction relative to the first contact portion of the second differential signal pair, the first conductive portion of the first differential signal pair being offset to the same side in a front-back direction relative to the first conductive portion of the second differential signal pair, and the length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair being the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair.

[0007] Furthermore, the distance by which the first contact portion of the first differential signal pair and the first contact portion of the second differential signal pair are offset in the front-back direction is defined as the first distance, and the distance by which the first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are offset in the front-back direction is defined as the second distance, and the first distance is equal to the second distance.

[0008] Furthermore, the first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair, and the first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair.

[0009] Furthermore, viewed from the left-right direction, the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the vertical direction, and the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the front-back direction.

[0010] Furthermore, the plurality of first conductive terminals include at least one first terminal group and at least one second terminal group, the at least one first terminal group and the at least one second terminal group are arranged alternately in the left-right direction, each first terminal group includes only one first ground terminal and one first differential signal pair, each second terminal group includes only one second ground terminal and one second differential signal pair, and a first ground terminal or a second ground terminal is provided between the first differential signal pair and the second differential signal pair; for the same first terminal group, the plurality of first contact portions are aligned in the left-right direction, the plurality of first connection portions are aligned in the left-right direction, and the plurality of first conductive portions are aligned in the left-right direction; for the same second terminal group, the plurality of first contact portions are aligned in the left-right direction, the plurality of first connection portions are aligned in the left-right direction, and the plurality of first conductive portions are aligned in the left-right direction.

[0011] Furthermore, the plurality of first conductive terminals include a plurality of first terminal groups and a plurality of second terminal groups, which are arranged alternately in the left-right direction. Each first terminal group includes a first differential signal pair and two first ground terminals located on the left and right sides of the first differential signal pair and adjacent to the first differential signal pair. The two first ground terminals respectively shield the opposite sides of one first differential signal pair. Each second terminal group includes only one second differential signal pair. For the same first terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction. For the same second terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction.

[0012] Furthermore, viewed from the left and right direction, the two first channels of the same first grounding terminal are at least partially offset from the top and bottom direction, and the two first channels of the same first grounding terminal are at least partially offset from the front and back direction; the two second channels of the same second grounding terminal are at least partially offset from the top and bottom direction, and the two second channels of the same second grounding terminal are at least partially offset from the front and back direction.

[0013] Furthermore, it includes a second insulator and a plurality of second conductive terminals disposed on the second insulator. The plurality of second conductive terminals are arranged in a left-right direction. The first insulator is fixedly connected to the second insulator. Each second conductive terminal includes a second contact portion, a second conductive portion, and a second connecting portion connecting the second contact portion and the second conductive portion. The second contact portion is located in front of the second conductive portion. The plurality of second conductive terminals include two adjacent differential signal pairs. One of the differential signal pairs is defined as a third differential signal pair, and the other is defined as a fourth differential signal pair. The second contact portion of the third differential signal pair is offset to one side in the front-back direction relative to the second contact portion of the fourth differential signal pair.

[0014] Furthermore, the second conductive portion of the third differential signal pair and the second conductive portion of the fourth differential signal pair are aligned in the left-right direction, and when viewed in the left-right direction, the second connecting portion of the third differential signal pair and the second connecting portion of the fourth differential signal pair are at least partially offset in the up-down direction.

[0015] Furthermore, the second conductor of the third differential signal pair is offset on the other side in the front-back direction relative to the second conductor of the fourth differential signal pair.

[0016] Furthermore, the length of the conduction path between the second contact portion and the second conductive portion of the third differential signal pair is the same as the length of the conduction path between the second contact portion and the second conductive portion of the fourth differential signal pair.

[0017] The present invention also provides an electrical connector, comprising: a first insulator; a plurality of first conductive terminals disposed on the first insulator, each first conductive terminal having a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion, the first contact portion being located in front of the first conductive portion; the plurality of first conductive terminals including two differential signal pairs arranged adjacent to each other in a left-right direction, one of the differential signal pairs being defined as a first differential signal pair and the other as a second differential signal pair; the first contact portion of the first differential signal pair being offset to one side in a front-back direction relative to the first contact portion of the second differential signal pair, and the first conductive portion of the first differential signal pair being offset to the same side in a front-back direction relative to the first conductive portion of the second differential signal pair; the plurality of first conductive terminals including a plurality of first terminal groups and a plurality of second terminal groups, the plurality of first terminal groups and the plurality of second terminal groups being alternately arranged in a left-right direction; each first terminal group including only one first ground terminal and one first differential signal pair, each second terminal group including only one second ground terminal and one second differential signal pair; a first connecting portion being disposed between the first differential signal pair and the second differential signal pair. A ground terminal or a second ground terminal, wherein the first connection portion of the first ground terminal includes two independently separated first channels, the first connection portion of the second ground terminal includes two independently separated second channels, a plurality of first contacts of the same first terminal group are aligned in the left-right direction, a plurality of first conductive portions of the same first terminal group are aligned in the left-right direction, a plurality of first contacts of the same second terminal group are aligned in the left-right direction, and a plurality of first conductive portions of the same second terminal group are aligned in the left-right direction; for the same first terminal group, a plurality of first connection portions of the first differential signal pair and a first channel adjacent to the first differential signal pair are aligned in the left-right direction, while another first channel of the first ground terminal and the first connection portion of the adjacent second differential signal pair are at least partially aligned in the left-right direction; for the same second terminal group, a plurality of first connection portions of the second differential signal pair and a second channel adjacent to the second differential signal pair are aligned in the left-right direction, while another second channel of the second ground terminal and the first connection portion of the adjacent first differential signal pair are at least partially aligned in the left-right direction.

[0018] The present invention also provides an electrical connector, comprising: a first insulator; a plurality of first conductive terminals arranged in a left-right direction and disposed on the first insulator, each first conductive terminal having a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion, the first contact portion being located in front of the first conductive portion, the plurality of first conductive terminals including at least one first terminal group and at least one second terminal group, the at least one first terminal group and the at least one second terminal group being alternately arranged in a left-right direction, the first terminal group including a first differential signal pair and two first ground terminals located on the left and right sides of the first differential signal pair and disposed adjacent to the first differential signal pair, the second terminal group including only one second differential signal pair; for the same first terminal group, the plurality of first contacts arranged in a left-right direction The first connecting portions are aligned in a left-right direction, and the first conductive portions are aligned in a left-right direction. For the same second terminal group, the first contact portions are aligned in a left-right direction, the first connecting portions are aligned in a left-right direction, and the first conductive portions are aligned in a left-right direction. The first contact portion of the first differential signal pair is offset to one side in the front-back direction relative to the first contact portion of the second differential signal pair, and the first conductive portion of the first differential signal pair is offset to the same side in the front-back direction relative to the first conductive portion of the second differential signal pair. The length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair is the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair.

[0019] Furthermore, the distance by which the first contact portion of the first differential signal pair and the first contact portion of the second differential signal pair are offset in the front-back direction is defined as the first distance, and the distance by which the first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are offset in the front-back direction is defined as the second distance, and the first distance is equal to the second distance.

[0020] Furthermore, the first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair, and the first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair.

[0021] Furthermore, viewed from the left-right direction, the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the vertical direction, and the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the front-back direction.

[0022] The present invention also provides an electrical connector, comprising: a first insulator; a plurality of first conductive terminals disposed on the first insulator, each first conductive terminal having a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion, the first contact portion being located in front of the first conductive portion; the plurality of first conductive terminals including two differential signal pairs arranged adjacent to each other in a left-right direction, one of the differential signal pairs being defined as a first differential signal pair and the other as a second differential signal pair; the first contact portions of the first differential signal pair and the first contact portions of the second differential signal pair being spaced apart in a front-back direction, the first contact portion of the first differential signal pair being located in front of the first contact portion of the second differential signal pair. The first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are spaced apart in the front-back direction. The first conductive portion of the first differential signal pair is located in front of the first conductive portion of the second differential signal pair. The first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair. The first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair. The length of the conduction path between each first contact portion of the first differential signal pair and the corresponding first conductive portion is equal to the length of the conduction path between each first contact portion of the second differential signal pair and the corresponding first conductive portion.

[0023] The present invention also provides a connector assembly, comprising: a circuit board having a plurality of first contact pads on one of its upper and lower surfaces; an electronic card having a plurality of first fingers on one of its upper and lower surfaces; and an electrical connector mounted on the circuit board, the electrical connector comprising a body, a first insulator disposed on the body, and a plurality of first conductive terminals disposed on the first insulator; the body having a mating surface and a recessed insertion cavity extending rearward from the mating surface for insertion of the electronic card; each first conductive terminal having a first contact portion and a first conductive portion. The device includes a first contact portion and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion and is exposed in the insertion cavity for contacting the first guide. The first conductive portion is exposed in the body for contacting the first contact pad. The first connecting portion is fixed to the first insulator. A plurality of first conductive terminals include two differential signal pairs arranged adjacent to each other in a left-right direction. One of the differential signal pairs is defined as the first differential signal pair, and the other as the second differential signal pair. The first contact of the first differential signal pair... The first contact portion of the first differential signal pair is offset by a first distance relative to the first contact portion of the second differential signal pair on one side in the front-back direction. The first conductive portion of the first differential signal pair is offset by a second distance relative to the first conductive portion of the second differential signal pair on the same side in the front-back direction. The first distance is equal to the second distance. The length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair is the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair. A pair of first contact pads conductive to the first differential signal pair is defined as a first pair of differential pads, and another pair of first contact pads conductive to the second differential signal pair is defined as a second pair of differential pads. A pair of first fingers conductive to the first differential signal pair is defined as a first pair of differential fingers, and another pair of first fingers conductive to the second differential signal pair is defined as a second pair of differential fingers. The first pair of differential pads is offset by a third distance relative to the second pair of differential pads on the same side in the front-back direction. The first pair of differential fingers is offset by a fourth distance relative to the second pair of differential fingers on the same side in the front-back direction. The third distance is equal to the fourth distance, and the first distance is equal to the third distance.

[0024] Furthermore, the first conductive portion is formed by bending backward from one end of the first connecting portion; the circuit board is provided with a plurality of second contact pads, the first contact pad and the second contact pad are located on the same surface of the circuit board; the electronic card is provided with a plurality of second fingers, the first finger and the second finger are located on the upper and lower opposite surfaces of the electronic card; the electrical connector further includes a second insulator and a plurality of second conductive terminals disposed on the second insulator, the plurality of second conductive terminals are arranged in a left-right direction, the first insulator and the second insulator are fixedly connected, each second conductive terminal includes a second contact portion, a second conductive portion and a second connecting portion connecting the second contact portion and the second conductive portion, the second contact portion is located in front of the second conductive portion, the second contact portion is exposed in the insertion cavity for contacting the second finger, the second conductive portion is formed by bending forward from one end of the second connecting portion and is exposed. The body is used to connect with the second contact pad. The second connection portion is fixed to the second insulator. A plurality of second conductive terminals include two adjacent differential signal pairs. One of the differential signal pairs is defined as a third differential signal pair, and the other is defined as a fourth differential signal pair. The second contact portion of the third differential signal pair is offset by a fifth distance relative to the second contact portion of the fourth differential signal pair on the same side in the front-back direction. A pair of second contact pads connected to the third differential signal pair is defined as a third pair of differential pads, and another pair of second contact pads connected to the fourth differential signal pair is defined as a fourth pair of differential pads. A pair of second fingers connected to the third differential signal pair is defined as a third pair of differential fingers, and another pair of second fingers connected to the fourth differential signal pair is defined as a fourth pair of differential fingers. The third pair of differential fingers is offset by a sixth distance relative to the fourth pair of differential fingers on the same side in the front-back direction. The fifth distance is equal to the sixth distance.

[0025] Furthermore, the electronic card has multiple first paths, each first path connecting to a corresponding second finger and the second contact portion of the conductive part. A pair of first paths connected to the third pair of differential fingers is defined as a first pair of paths, and another pair of first paths connected to the fourth pair of differential fingers is defined as a second pair of paths. The upper surface of the circuit board has multiple second paths, each second path connecting to a corresponding second contact pad and the second conductive part of the conductive part. A pair of second paths connected to the third differential pad is defined as a third pair of paths, and a pair of second paths connected to the fourth differential pad is defined as a fourth pair of paths. The sum of the length of the first pair of paths, the length of the conductive path between the second contact portion and the second conductive part of the third differential signal pair, and the length of the third pair of paths is equal to the sum of the length of the second pair of paths, the length of the conductive path between the second contact portion and the second conductive part of the fourth differential signal pair, and the length of the fourth pair of paths.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] Crosstalk is generated by the mutual coupling between two adjacent differential signal pairs through mutual capacitance and mutual inductance, and is directly proportional to mutual capacitance and mutual inductance. The distance between two adjacent differential signal pairs is inversely proportional to mutual capacitance and mutual inductance. The magnetic force between two adjacent differential signal pairs represents the magnitude of crosstalk. The essence of crosstalk is the energy of this interaction, determined by mutual capacitance and mutual inductance. This application sets the signal transmission paths of two adjacent differential signal pairs to be equal to avoid problems such as timing discrepancies and signal quality degradation caused by unequal transmission path lengths. This is achieved by changing the positions of the contact and conductive parts of the two adjacent differential signal pairs, specifically by shifting the first contact of the first differential signal pair relative to the first contact of the second differential signal pair on one side in the front-back direction. The first conductive part of the first differential signal pair is relative to... The first conductive portion of the second differential signal pair is offset to the same side in the front-back direction, increasing the distance between two adjacent differential signal pairs and reducing crosstalk between them, thereby improving high-frequency characteristics. Two first grounding terminals are placed on the left and right sides of the first differential signal pair and arranged adjacent to it. These first grounding terminals are also arranged side-by-side with the first differential signal pair, allowing them to shield the opposite sides of the first differential signal pair. The two first grounding terminals can absorb the electromagnetic radiation generated by the first and second differential signal pairs, thereby suppressing mutual capacitance and mutual inductance between them, further reducing mutual interference between adjacent differential signal pairs. Attached Figure Description

[0028] Figure 1 This is an exploded perspective view of the connector assembly of the present invention;

[0029] Figure 2 for Figure 1 An exploded perspective view of the electrical connector according to the first embodiment of the present invention;

[0030] Figure 3 for Figure 1 A sectional view taken along a plane that is parallel to both the front-back and up-down directions and is cut along a plane that is parallel to the plane defined by the front-back and up-down directions.

[0031] Figure 4 for Figure 2 A schematic diagram of the first conductive terminal;

[0032] Figure 5 for Figure 1 The diagram shows only a partial view of the first conductive terminal when it is connected to the electronic card and the circuit board.

[0033] Figure 6 for Figure 5 The image shows only the side view of two adjacent differential signal pairs in the first conductive terminal;

[0034] Figure 7 for Figure 1 The diagram shows only a partial view of the second conductive terminal when it is connected to the electronic card and the circuit board.

[0035] Figure 8 for Figure 7 A schematic diagram showing the hidden circuit board from another perspective;

[0036] Figure 9 for Figure 7 The image shows only the side view of two adjacent differential signal pairs in the second conductive terminal;

[0037] Figure 10 for Figure 1 The image shows only a top view of the top surface of the electronic card;

[0038] Figure 11 for Figure 1 The diagram only shows the lower surface of the electronic card;

[0039] Figure 12 for Figure 1 The image shows only a top view of the upper surface of the circuit board;

[0040] Figure 13 This is an exploded perspective view of the electrical connector according to the second embodiment of the present invention;

[0041] Figure 14 for Figure 13 A schematic diagram of the first conductive terminal;

[0042] Figure 15 for Figure 13 The diagram shows only a partial view of the first conductive terminal when it is connected to the electronic card and the circuit board.

[0043] Figure 16 for Figure 15 The image shows only the side view of two adjacent differential signal pairs in the first conductive terminal;

[0044] Figure 17 for Figure 13 The diagram shows only a partial view of the second conductive terminal when it is connected to the electronic card and the circuit board.

[0045] Figure 18 for Figure 17 A schematic diagram showing the hidden circuit board from another perspective;

[0046] Figure 19 for Figure 17 The image shows only the side view of two adjacent differential signal pairs in the second conductive terminal;

[0047] Figure 20 for Figure 15 The image shows only a top view of the top surface of the electronic card;

[0048] Figure 21 for Figure 15 The diagram only shows the lower surface of the electronic card;

[0049] Figure 22 for Figure 15 The image shows only a top view of the upper surface of the circuit board;

[0050] Figure 23 This is an exploded perspective view of the electrical connector according to the third embodiment of the present invention;

[0051] Figure 24 for Figure 23 A schematic diagram of the first conductive terminal;

[0052] Figure 25 for Figure 23 When the CEC connector is connected to the electronic card and circuit board, only a partial schematic diagram of the first conductive terminal and the electronic card and circuit board is shown.

[0053] Figure 26 for Figure 25 The image shows only the side view of two adjacent differential signal pairs in the first conductive terminal;

[0054] Figure 27 for Figure 23 The diagram shows only a partial view of the second conductive terminal when it is connected to the electronic card and the circuit board.

[0055] Figure 28 for Figure 27 A schematic diagram showing the hidden circuit board from another perspective;

[0056] Figure 29 for Figure 27 The image shows only the side view of two adjacent differential signal pairs in the second conductive terminal;

[0057] Figure 30 for Figure 25 The image shows only a top view of the top surface of the electronic card;

[0058] Figure 31 for Figure 25 The diagram only shows the lower surface of the electronic card;

[0059] Figure 32 for Figure 25 The image shows only a top view of the upper surface of the circuit board;

[0060] Figure 33 This is an exploded perspective view of the electrical connector according to the fourth embodiment of the present invention;

[0061] Figure 34 for Figure 33 A schematic diagram of the first conductive terminal;

[0062] Figure 35 for Figure 33 When the CEC connector is connected to the electronic card and circuit board, only a partial schematic diagram of the first conductive terminal and the electronic card and circuit board is shown.

[0063] Figure 36 for Figure 35 The image shows only the side view of two adjacent differential signal pairs in the first conductive terminal;

[0064] Figure 37 for Figure 33 When the CEC connector is connected to the electronic card and circuit board, only a partial schematic diagram of the second conductive terminal and the electronic card and circuit board is shown.

[0065] Figure 38 for Figure 37 A schematic diagram showing the hidden circuit board from another perspective;

[0066] Figure 39 for Figure 37 The image shows only the side view of two adjacent differential signal pairs in the second conductive terminal;

[0067] Figure 40 for Figure 35 The image shows only a top view of the top surface of the electronic card;

[0068] Figure 41 for Figure 35 The diagram only shows the lower surface of the electronic card;

[0069] Figure 42 for Figure 35 The image shows only a top view of the upper surface of the circuit board;

[0070] Figure 43 This is an exploded perspective view of the electrical connector according to the fifth embodiment of the present invention;

[0071] Figure 44 for Figure 43 A schematic diagram of the first conductive terminal;

[0072] Figure 45 for Figure 43 When the CEC connector is connected to the electronic card and circuit board, only a partial schematic diagram of the first conductive terminal and the electronic card and circuit board is shown.

[0073] Figure 46 for Figure 45 A diagram showing the view from another perspective;

[0074] Figure 47 for Figure 46 A side view showing the hidden electronic card and circuit board;

[0075] Figure 48 for Figure 47 The image shows only the side view of two adjacent differential signal pairs in the first conductive terminal;

[0076] Figure 49 for Figure 43 When the CEC connector is connected to the electronic card and circuit board, only a partial schematic diagram of the second conductive terminal and the electronic card and circuit board is shown.

[0077] Figure 50 for Figure 49 A schematic diagram showing the hidden circuit board from another perspective;

[0078] Figure 51 for Figure 50 Only a schematic diagram of the second conductive terminal is shown in the image;

[0079] Figure 52 for Figure 51 Side view;

[0080] Figure 53 for Figure 51 The image shows only the side view of two adjacent differential signal pairs in the second conductive terminal;

[0081] Figure 54 for Figure 49 The image shows only a top view of the top surface of the electronic card;

[0082] Figure 55 for Figure 49 The diagram only shows the lower surface of the electronic card;

[0083] Figure 56 for Figure 49 The image shows only a top view of the top surface of the circuit board.

[0084] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0085] Detailed Implementation

[0086] To facilitate a better understanding of the purpose, structure, and features of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0087] For ease of understanding, this invention defines a left-right direction (X-axis), a front-back direction (Y-axis), and a top-bottom direction (Z-axis), and these three directions are perpendicular to each other.

[0088] The connector assembly of the present invention includes an electrical connector 100, an electronic card 200 mating with the electrical connector 100, and a circuit board 300, wherein the electrical connector 100 is mounted downward on the circuit board 300.

[0089] like Figures 1 to 9 The image shows a first embodiment of the electrical connector 100 in the connector assembly of the present invention; Figures 10 to 11 The electronic card 200 is designed to mate with the electrical connector 100 of the first embodiment; Figure 12 The circuit board 300 is designed to mate with the electrical connector 100 of the first embodiment; Figures 13 to 19 This is a second embodiment of the electrical connector 100 in the connector assembly of the present invention; Figures 20 to 21 The electronic card 200 is designed to mate with the electrical connector 100 of the second embodiment; Figure 22 The circuit board 300 is designed to mate with the electrical connector 100 of the second embodiment; Figures 23 to 29 This is a third embodiment of the electrical connector 100 in the connector assembly of the present invention; Figures 30 to 31 The electronic card 200 is designed to mate with the electrical connector 100 of the third embodiment; Figure 32 The circuit board 300 is designed to mate with the electrical connector 100 of the third embodiment; Figures 33 to 39 This is a fourth embodiment of the electrical connector 100 in the connector assembly of the present invention; Figures 40 to 41 The electronic card 200 is designed to mate with the electrical connector 100 of the fourth embodiment; Figure 42 The circuit board 300 is designed to mate with the electrical connector 100 of the fourth embodiment; Figures 43 to 53 This is the fifth embodiment of the electrical connector 100 in the connector assembly of the present invention. Figures 54 to 55The electronic card 200 is designed to mate with the electrical connector 100 of the fifth embodiment; Figure 56 The circuit board 300 is designed to mate with the electrical connector 100 of the fifth embodiment.

[0090] In each of the five embodiments described above, each electrical connector 100 includes a metal housing 1 and a body 2 housed within the metal housing 1. The metal housing 1 has a frame structure with at least three sides, i.e., a cross-section of at least U-shaped. The body 2 is made of insulating material and has a mating surface 21 and a recessed insertion cavity 22 formed rearward from the mating surface 21. The insertion cavity 22 is for inserting the electronic card 200 (auxiliary reference). Figure 1 and Figure 3 ).

[0091] In each of the five embodiments described above, the electrical connector 100 further includes a first insulator 3, a plurality of first conductive terminals 4 disposed on the first insulator 3, a second insulator 5, and a plurality of second conductive terminals 6 disposed on the second insulator 5. The plurality of first conductive terminals 4 and the plurality of second conductive terminals 6 are exposed on the body 2 and soldered to the circuit board 300. The plurality of first conductive terminals 4 are embedded in the first insulator 3, and the plurality of second conductive terminals 6 are arranged in a left-right direction and embedded in the second insulator 5. The second insulator 5 and the first insulator 3 are fixedly connected to the body 2 together.

[0092] In each of the five embodiments described above, each first conductive terminal 4 has a first contact portion 41, a first conductive portion 42, and a first connecting portion 43 connecting the first contact portion 41 and the first conductive portion 42. The first contact portion 41 is located in front of the first conductive portion 42, and the first conductive portion 42 is formed by bending backward from one end of the first connecting portion 43.

[0093] In each of the five embodiments described above, the plurality of first conductive terminals 4 include a plurality of differential signal pairs. One of the two differential signal pairs arranged in a left-right direction and adjacent to each other is defined as a first differential signal pair 4a and the other as a second differential signal pair 4b. The plurality of first conductive terminals 4 include a plurality of first differential signal pairs 4a and a plurality of second differential signal pairs 4b. The plurality of first differential signal pairs 4a and the plurality of second differential signal pairs 4b are arranged alternately in a left-right direction. The two first conductive terminals 4 in the first differential signal pair 4a are arranged symmetrically in the left and right directions, and the two first conductive terminals 4 in the second differential signal pair 4b are arranged symmetrically in the left and right directions. In each of the five embodiments described above, the first contact portion 41 of the first differential signal pair 4a is offset to one side in the front-back direction relative to the first contact portion 41 of the second differential signal pair 4b, and the first conductive portion 42 of the first differential signal pair 4a is offset to the same side in the front-back direction relative to the first conductive portion 42 of the second differential signal pair 4b. That is, the first contact portion 41 of the first differential signal pair 4a is offset forward relative to the first contact portion 41 of the second differential signal pair 4b, and the first conductive portion 42 of the first differential signal pair 4a is also offset forward relative to the first conductive portion 42 of the second differential signal pair 4b.

[0094] In each of the five embodiments described above, the distance by which the first contact portion 41 of the first differential signal pair 4a and the first contact portion 41 of the second differential signal pair 4b are offset in the front-back direction is defined as a first distance L1, and the distance by which the first conductive portion 42 of the first differential signal pair 4a and the first conductive portion 42 of the second differential signal pair 4b are offset in the front-back direction is defined as a second distance L2, and the first distance L1 is equal to the second distance L2; the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the first differential signal pair 4a is the same as the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the second differential signal pair 4b.

[0095] In each of the five embodiments described above, the first connection portion 43 of the first differential signal pair 4a and the first connection portion 43 of the second differential signal pair 4b are partially offset in the vertical direction, and the first connection portion 43 of the first differential signal pair 4a and the first connection portion 43 of the second differential signal pair 4b are partially offset in the front-back direction. Specifically, the portion of the first connection portion 43 of the first differential signal pair 4a near the corresponding first contact portion 41 is located above the portion of the first connection portion 43 of the second differential signal pair 4b near the corresponding first contact portion 41, while the portion of the first connection portion 43 of the first differential signal pair 4a near the corresponding first conductive portion 42 is located in front of the portion of the first connection portion 43 of the second differential signal pair 4b near the corresponding first conductive portion 41. Thus, when viewed in the left-right direction, the first connection portion 43 of the first differential signal pair 4a and the first connection portion 43 of the second differential signal pair 4b form an intersection.

[0096] In each of the five embodiments described above, each second conductive terminal 6 has a second contact portion 61, a second conductive portion 62, and a second connecting portion 63 connecting the second contact portion 61 and the second conductive portion 62. The second contact portion 61 is located in front of the second conductive portion 62, and the second contact portion 61 and the first contact portion 41 are located on opposite upper and lower sides of the insertion cavity 21, and protrude into the insertion cavity 21. The second conductive portion 62 is formed by bending forward from one end of the second connecting portion 63. The plurality of second conductive terminals 6 include a plurality of differential signal pairs. One of two differential signal pairs arranged in the left-right direction and adjacent to each other is defined as a third differential signal pair 6a and the other as a fourth differential signal pair 6b. The plurality of second conductive terminals 6 include a plurality of third differential signal pairs 6a and a plurality of fourth differential signal pairs 6b. The plurality of third differential signal pairs 6a and the plurality of fourth differential signal pairs 6b are arranged alternately in the left-right direction.

[0097] In each of the five embodiments described above, the electronic card 200 includes a plurality of first fingers 7a and a plurality of second fingers 7b. The plurality of first fingers 7a are arranged in a left-right direction on the upper surface of the electronic card 200, and are used to conduct one-to-one with the plurality of first contact portions 41 of the plurality of first conductive terminals 4. The plurality of second fingers 7b are arranged in a left-right direction on the lower surface of the electronic card 200, and are used to conduct one-to-one with the plurality of second contact portions 61 of the plurality of second conductive terminals 6. A pair of first fingers 7a connected to the first differential signal pair 4a is defined as the first pair of differential fingers 7a1, another pair of first fingers 7a connected to the second differential signal pair 4b is defined as the second pair of differential fingers 7a2, a pair of second fingers 7b connected to the third differential signal pair 6a is defined as the third pair of differential fingers 7b1, and another pair of second fingers 7b connected to the fourth differential signal pair 6b is defined as the fourth pair of differential fingers 7b2.

[0098] In each of the five embodiments described above, the electronic card 200 further comprises a plurality of first paths M and a plurality of third paths P. Each first path M is connected to the guide of a corresponding second finger 7b and the second contact portion 61. A pair of first paths M connected to the third pair of differential fingers 7b1 is defined as a first pair of paths M1, and another pair of first paths M connected to the fourth pair of differential fingers 7b2 is defined as a second pair of paths M2. Each third path P is connected to the guide of a corresponding first finger 7a and the first contact portion 41. A pair of third paths P connected to the first pair of differential fingers 7a1 is defined as a fifth pair of paths P1, and another pair of third paths P connected to the second pair of differential fingers 7a2 is defined as a sixth pair of paths P2.

[0099] In each of the five embodiments described above, the circuit board 300 includes a plurality of first contact pads 8a and a plurality of second contact pads 8b. The plurality of first contact pads 8a are arranged at intervals along the left-right direction on the upper surface of the circuit board 300. The plurality of first contact pads 8a are used to conduct one-to-one with the plurality of first conductive portions 42 of the plurality of first conductive terminals 4. The first conductive portions 42 and the first contact pads 8a are connected by welding. The plurality of second contact pads 8b are arranged at intervals along the left-right direction on the same surface of the circuit board 300 (i.e., the upper surface of the circuit board 300). The plurality of second contact pads 8b are used to conduct one-to-one with the plurality of second conductive portions 62 of the plurality of second conductive terminals 6. The second conductive portions 62 and the second contact pads 8b are connected by welding. The plurality of first contact pads 8a are spaced apart from the plurality of second contact pads 8b in the front-back direction, and the second contact pads 8b are located in front of the first contact pads 8a. A pair of first contact pads 8a connected to the first differential signal pair 4a is defined as the first pair of differential pads 8a1, another pair of first contact pads 8a connected to the second differential signal pair 4b is defined as the second pair of differential pads 8a2, a pair of second contact pads 8b connected to the third differential signal pair 6a is defined as the third pair of differential pads 8b1, and another pair of second contact pads 8b connected to the fourth differential signal pair 6b is defined as the fourth pair of differential pads 8b2.

[0100] In each of the five embodiments described above, the circuit board 300 further includes a plurality of second paths N and a plurality of fourth paths Q. Each second path N is connected to the connection point between a corresponding second contact pad 8b and the second conductive portion 62. A pair of second paths N connected to the third pair of differential pads 8b1 is defined as the third pair of paths N1, and a pair of second paths N connected to the fourth pair of differential pads 8b2 is defined as the fourth pair of paths N2. Each fourth path Q is connected to the connection point between a corresponding first contact pad 8a and the first conductive portion 42. A pair of fourth paths Q connected to the first pair of differential pads 8a1 is defined as the seventh pair of paths Q1, and a pair of fourth paths Q connected to the second pair of differential pads 8a2 is defined as the eighth pair of paths Q2.

[0101] like Figures 1 to 9 The image shows a first embodiment of the electrical connector 100 in the connector assembly of the present invention.

[0102] like Figure 2 and Figure 4As shown, the plurality of first conductive terminals 4 include a plurality of first terminal groups W1 and a plurality of second terminal groups W2, which are arranged alternately in the left-right direction. In other embodiments, each of the first terminal group W1 and the second terminal group W2 may be provided with only one, or one may be provided with multiple and the other with only one.

[0103] like Figure 5 As shown, the first terminal group W1 includes a first differential signal pair 4a and two first ground terminals 4c located on the left and right sides of the first differential signal pair 4a and adjacent to the first differential signal pair 4a. The second terminal group W2 includes only one second differential signal pair 4b.

[0104] like Figure 5 As shown, for the same first terminal group W1, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction; for the same second terminal group W2, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction.

[0105] like Figure 5 As shown, in this embodiment, the first conductive terminal 4 on the left side of the first differential signal pair 4a has the same structure as the first conductive terminal 4 on the left side of the second differential signal pair 4b, and the first conductive terminal 4 on the right side of the first differential signal pair 4a has the same structure as the first conductive terminal 4 on the right side of the second differential signal pair 4b.

[0106] like Figure 2 As shown, the plurality of second conductive terminals 6 include a plurality of third terminal groups K1 and a plurality of fourth terminal groups K2, which are arranged alternately in the left-right direction. In other embodiments, each of the third terminal group K1 and the fourth terminal group K2 may be provided as only one, or one may be provided as multiple and the other as only one.

[0107] like Figure 7 and Figure 8 As shown, the third terminal group K1 includes a third differential signal pair 6a and two third grounding terminals 6c located on the left and right sides of the third differential signal pair 6a and adjacent to the third differential signal pair 6a. The fourth terminal group K2 includes only one fourth differential signal pair 6b.

[0108] like Figure 7 and Figure 8As shown, for the same third terminal group K1, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction; for the same fourth terminal group K2, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction.

[0109] like Figure 8 and Figure 9 As shown, the second contact portion 61 of the third differential signal pair 6a is offset to one side in the front-rear direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The second conductive portion 62 of the third differential signal pair 6a and the second conductive portion 62 of the fourth differential signal pair 6b are aligned in the left-right direction. In this embodiment, the second contact portion 61 of the third differential signal pair 6a is positioned further forward in the front-rear direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The second conductive portion 62 of the third differential signal pair 6a and the second conductive portion 62 of the fourth differential signal pair 6b are arranged side by side in the front-rear direction. The second connecting portion 63 of the third differential signal pair 6a and the second connecting portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction. When viewed from the left-right direction, the second connecting portion 63 of the third differential signal pair 6a and the second connecting portion 63 of the fourth differential signal pair 6b form an intersection.

[0110] like Figure 7 As shown, the second conductive terminal 6 on the left side of the third differential signal pair 6a has a different structure than the second conductive terminal 6 on the left side of the fourth differential signal pair 6b, and the second conductive terminal 6 on the right side of the third differential signal pair 6a also has a different structure than the second conductive terminal 6 on the right side of the fourth differential signal pair 6b.

[0111] like Figure 10 and Figure 12 As shown, the first pair of differential fingers 7a1 is shifted forward by a third distance L3 relative to the second pair of differential fingers 7a2, and the first pair of differential pads 8a1 is shifted forward by a fourth distance L4 relative to the second pair of differential pads 8a2. The third distance L3 is equal to the fourth distance L4, the first distance L1 is equal to the third distance L3, and the second distance L2 is equal to the fourth distance L4.

[0112] like Figure 9 and Figure 12As shown, the second contact portion 61 of the third differential signal pair 6a is shifted forward by a fifth distance L5 relative to the second contact portion 61 of the fourth differential signal pair 6b, and the third pair of differential fingers 7b1 is shifted forward by a sixth distance L6 relative to the fourth pair of differential fingers 7b2. The fifth distance L5 is equal to the sixth distance L6. The third pair of differential pads 8b1 and the fourth pair of differential pads 8b2 are aligned in the left-right direction.

[0113] like Figure 9 As shown, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction. When viewed in the horizontal direction, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b form an intersection.

[0114] like Figure 9 and Figure 11 As shown, the sum of the length of the first pair of paths M1, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a, and the length of the third pair of paths N1 is equal to the sum of the length of the second pair of paths M2, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b, and the length of the fourth pair of paths N2.

[0115] like Figure 6 , Figure 10 and Figure 12 As shown, the sum of the lengths of the fifth pair of paths P1, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the first differential signal pair 4a, and the length of the seventh pair of paths Q1 is equal to the sum of the lengths of the sixth pair of paths P2, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the second differential signal pair 4b, and the length of the eighth pair of paths Q2.

[0116] like Figure 10 and Figure 11As shown, the electronic card 200, which mates with the electrical connector 100, has four consecutive adjacent first fingers 7a forming a group that makes one-to-one contact with the four first contact portions 41 of a corresponding first terminal group W1 on its upper surface. Another two consecutive adjacent first fingers 7a form a group that makes one-to-one contact with the two first contact portions 41 of a corresponding second terminal group W2. On the lower surface of the electronic card 200, four consecutive adjacent second fingers 7b forming a group that makes one-to-one contact with the four second contact portions 61 of a corresponding third terminal group K1. Another two consecutive adjacent second fingers 7b form a group that makes one-to-one contact with the two second contact portions 61 of a corresponding fourth terminal group K2.

[0117] like Figure 12 As shown, the circuit board 300 is soldered to the electrical connector 100. On the upper surface of the circuit board 300, four consecutive adjacent first contact pads 8a form a group that is connected to the four first conductive parts 42 of a corresponding first terminal group W1. Another two consecutive adjacent first contact pads 8a form a group that is connected to the two first conductive parts 42 of a corresponding second terminal group W2. Four consecutive adjacent second contact pads 8b form a group that is connected to the four second conductive parts 62 of a corresponding third terminal group K1. Another two consecutive adjacent second contact pads 8b form a group that is connected to the two second conductive parts 62 of a corresponding fourth terminal group K2.

[0118] like Figures 13 to 19 The image shows a second embodiment of the electrical connector 100 in the connector assembly of the present invention.

[0119] like Figure 14 As shown, the plurality of first conductive terminals 4 include a plurality of first terminal groups W1 and a plurality of second terminal groups W2, which are arranged alternately in the left-right direction. In other embodiments, only one of each of the first terminal group W1 and the second terminal group W2 may be provided, or one may be provided in multiples and the other in only one.

[0120] like Figure 14 As shown, each of the first terminal groups W1 includes a first differential signal pair 4a and two first ground terminals 4c located on the left and right sides of the first differential signal pair 4a and adjacent to the first differential signal pair 4a. The two first ground terminals 4c respectively shield the left and right sides of one of the first differential signal pairs 4a. Each of the second terminal groups W2 includes only one second differential signal pair 4b.

[0121] like Figure 15 As shown, for the same first terminal group W1, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction; for the same second terminal group W2, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction.

[0122] like Figure 15 and Figure 16 As shown, in this embodiment, the structure of the first conductive terminal 4 on the left side of the first differential signal pair 4a is different from that of the first conductive terminal 4 on the left side of the second differential signal pair 4b, and the structure of the first conductive terminal 4 on the right side of the first differential signal pair 4a is also different from that of the first conductive terminal 4 on the right side of the second differential signal pair 4b.

[0123] like Figure 13 and Figure 18 As shown, the plurality of second conductive terminals 6 include a plurality of third terminal groups K1 and a plurality of fourth terminal groups K2. The plurality of third terminal groups K1 and the plurality of fourth terminal groups K2 are arranged alternately in the left-right direction. In this embodiment, both the third terminal groups K1 and the fourth terminal groups K2 are provided in multiples. In other embodiments, each of the third terminal groups K1 and the fourth terminal groups K2 may be provided as a single instance, or one of them may be provided in multiples and the other in a single instance.

[0124] like Figure 18 As shown, each of the third terminal groups K1 includes a third differential signal pair 6a and two third grounding terminals 6c located on the left and right sides of the third differential signal pair 6a and adjacent to the third differential signal pair 6a, and each of the fourth terminal groups K2 includes only one fourth differential signal pair 6b.

[0125] like Figure 17 and Figure 18 As shown, for the same third terminal group K1, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction; for the same fourth terminal group K2, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction.

[0126] like Figure 17As shown, the second conductive terminal 6 on the left side of the third differential signal pair 6a has a different structure than the second conductive terminal 6 on the left side of the fourth differential signal pair 6b, and the second conductive terminal 6 on the right side of the third differential signal pair 6a also has a different structure than the second conductive terminal 6 on the right side of the fourth differential signal pair 6b.

[0127] like Figure 19 and Figure 21 As shown, the second contact portion 61 of the third differential signal pair 6a is shifted forward by a fifth distance L5 relative to the second contact portion 61 of the fourth differential signal pair 6b. That is, the second contact portion 61 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The third pair of differential fingers 7b1 is shifted forward by a sixth distance L6 relative to the fourth pair of differential fingers 7b2. The fifth distance L5 is equal to the sixth distance L6.

[0128] like Figure 19 and Figure 22 As shown, the second conductive portion 62 of the third differential signal pair 6a is shifted forward by a seventh distance L7 relative to the second conductive portion 62 of the fourth differential signal pair 6b. That is, the second conductive portion 62 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second conductive portion 62 of the fourth differential signal pair 6b. The third differential pad 8b1 is shifted forward by an eighth distance L8 relative to the fourth differential pad 8b2. The seventh distance L7 is equal to the eighth distance L8.

[0129] like Figure 19 As shown, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction; the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the front-back direction; when viewed in the left-right direction, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b form an intersection.

[0130] like Figure 19 As shown, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a is the same as the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b.

[0131] like Figure 19 , Figure 21 and Figure 22As shown, the sum of the length of the first pair of paths M1, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a, and the length of the third pair of paths N1 is equal to the sum of the length of the second pair of paths M2, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b, and the length of the fourth pair of paths N2.

[0132] like Figure 16 , Figure 20 and Figure 22 As shown, the sum of the lengths of the fifth pair of paths P1, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the first differential signal pair 4a, and the length of the seventh pair of paths Q1 is equal to the sum of the lengths of the sixth pair of paths P2, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the second differential signal pair 4b, and the length of the eighth pair of paths Q2.

[0133] like Figure 20 and Figure 21 As shown, the electronic card 200, which mates with the electrical connector 100, has four consecutive adjacent first fingers 7a forming a group that makes one-to-one contact with the four first contact portions 41 of a corresponding first terminal group W1 on its upper surface. Another two consecutive adjacent first fingers 7a form a group that makes one-to-one contact with the two first contact portions 41 of a corresponding second terminal group W2. On the lower surface of the electronic card 200, four consecutive adjacent second fingers 7b forming a group that makes one-to-one contact with the four second contact portions 61 of a corresponding third terminal group K1. Another two consecutive adjacent second fingers 7b form a group that makes one-to-one contact with the two second contact portions 61 of a corresponding fourth terminal group K2.

[0134] like Figure 15 and Figure 22As shown, the circuit board 300 is soldered to the electrical connector 100. On the upper surface of the circuit board 300, four consecutive adjacent first contact pads 8a form a group that is connected to the four first conductive parts 42 of a corresponding first terminal group W1. Another two consecutive adjacent first contact pads 8a form a group that is connected to the two first conductive parts 42 of a corresponding second terminal group W2. Four consecutive adjacent second contact pads 8b form a group that is connected to the four second conductive parts 62 of a corresponding third terminal group K1. Another two consecutive adjacent second contact pads 8b form a group that is connected to the two second conductive parts 62 of a corresponding fourth terminal group K2.

[0135] like Figures 23 to 29 The image shows a third embodiment of the electrical connector 100 in the connector assembly of the present invention.

[0136] like Figure 21 and Figure 22 As shown, the plurality of first conductive terminals 4 include a plurality of first terminal groups W1 and a plurality of second terminal groups W2, which are arranged alternately in the left-right direction. In other embodiments, only one of each of the first terminal group W1 and the second terminal group W2 may be provided, or one may be provided in multiples and the other in only one.

[0137] like Figure 25 As shown, each of the first terminal groups W1 includes only one first ground terminal 4c and one first differential signal pair 4a. The first ground terminal 4c is used to shield one side of the first differential signal pair 4a in the left-right direction. Each of the second terminal groups W2 includes only one second ground terminal 4d and one second differential signal pair 4b. The second ground terminal 4d is used to shield the same side of the second differential signal pair 4b in the left-right direction. There is only one first ground terminal 4c or one second ground terminal 4d between the first differential signal pair 4a and the second differential signal pair 4b.

[0138] like Figure 25 and Figure 26 As shown, for the same first terminal group W1, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction; for the same second terminal group W2, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction.

[0139] like Figure 25 As shown, the first conductive terminal 4 on the left side of the first differential signal pair 4a has the same structure as the first conductive terminal 4 on the left side of the second differential signal pair 4b, and the first conductive terminal 4 on the right side of the first differential signal pair 4a has the same structure as the first conductive terminal 4 on the right side of the second differential signal pair 4b.

[0140] like Figure 24 As shown, the plurality of second conductive terminals 6 include a plurality of third terminal groups K1 and a plurality of fourth terminal groups K2. The plurality of third terminal groups K1 and the plurality of fourth terminal groups K2 are arranged alternately in the left-right direction. In this embodiment, both the third terminal groups K1 and the fourth terminal groups K2 are provided in multiples. In other embodiments, each of the third terminal groups K1 and the fourth terminal groups K2 may be provided as a single instance, or one of them may be provided in multiples and the other in a single instance.

[0141] like Figure 23 and Figure 28 As shown, each of the third terminal groups K1 includes only one third ground terminal 6c and one third differential signal pair 6a. The third ground terminal 6c is used to shield one side of the third differential signal pair 6a in the left-right direction. Each of the second terminal groups W2 includes only one fourth ground terminal 6d and one fourth differential signal pair 6b. The fourth ground terminal 6d is used to shield the same side of the fourth differential signal pair 6b in the left-right direction. A third ground terminal 6c or a fourth ground terminal 6d is provided between the third differential signal pair 6a and the fourth differential signal pair 6b.

[0142] like Figure 27 and Figure 28 As shown, for the same third terminal group K1, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction; for the same fourth terminal group K2, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction.

[0143] like Figure 27 As shown, the second conductive terminal 6 on the left side of the third differential signal pair 6a has a different structure than the second conductive terminal 6 on the left side of the fourth differential signal pair 6b, and the second conductive terminal 6 on the right side of the third differential signal pair 6a also has a different structure than the second conductive terminal 6 on the right side of the fourth differential signal pair 6b.

[0144] like Figures 29 to 31As shown, the second contact portion 61 of the third differential signal pair 6a is shifted forward by a fifth distance L5 relative to the second contact portion 61 of the fourth differential signal pair 6b. That is, the second contact portion 61 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The third pair of differential fingers 7b1 is shifted forward by a sixth distance L6 relative to the fourth pair of differential fingers 7b2. The fifth distance L5 is equal to the sixth distance L6.

[0145] like Figure 29 and Figure 32 As shown, the second conductive portion 62 of the third differential signal pair 6a is offset backward by a seventh distance L7 relative to the second conductive portion 62 of the fourth differential signal pair 6b. That is, the second conductive portion 62 of the third differential signal pair 6a is positioned further back in the front-back direction relative to the second conductive portion 62 of the fourth differential signal pair 6b. The third pair of differential pads 8b1 is offset backward by an eighth distance L8 relative to the fourth pair of differential pads 8b2. The seventh distance L7 is equal to the eighth distance L8.

[0146] like Figure 29 As shown, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction; the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the front-back direction. When viewed from the left-right direction, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b form multiple intersections. In this embodiment, there are three intersections.

[0147] like Figure 29 As shown, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a is the same as the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b.

[0148] like Figure 30 and Figure 31As shown, for the electronic card 200 that mates with the electrical connector 100, every three consecutive adjacent first fingers 7a form a group that make one-to-one contact with the three first contact portions 41 of a corresponding first terminal group W1, or with the three first contact portions 41 of a corresponding second terminal group W2; every three consecutive adjacent second fingers 7b form a group that make one-to-one contact with the three second contact portions 61 of a corresponding third terminal group K1, or with the three second contact portions 61 of a corresponding fourth terminal group K2.

[0149] like Figure 32 As shown, for the circuit board 300 soldered to the electrical connector 100, on the upper surface of the circuit board 300, every three consecutive adjacent first contact pads 8a form a group that are connected one-to-one with the three first conductive parts 42 of a corresponding first terminal group W1, or one-to-one with the three first conductive parts 42 of a corresponding second terminal group W2; every three consecutive adjacent second contact pads 8b form a group that are connected one-to-one with the three second conductive parts 62 of a corresponding third terminal group K1, or one-to-one with the three second conductive parts 62 of a corresponding fourth terminal group K2.

[0150] like Figures 33 to 39 The image shows a fourth embodiment of the electrical connector 100 in the connector assembly of the present invention.

[0151] like Figure 33 and Figure 34 As shown, the plurality of first conductive terminals 4 include a plurality of first terminal groups W1 and a plurality of second terminal groups W2, which are arranged alternately in the left-right direction. In other embodiments, each of the first terminal group W1 and the second terminal group W2 may be provided with only one, or one may be provided with multiple and the other with only one.

[0152] like Figure 35 As shown, each of the first terminal groups W1 includes only one first ground terminal 4c and one first differential signal pair 4a. The first ground terminal 4c is used to shield one side of the first differential signal pair 4a in the left-right direction. Each of the second terminal groups W2 includes only one second ground terminal 4d and one second differential signal pair 4b. The second ground terminal 4d is used to shield the same side of the second differential signal pair 4b in the left-right direction. There is only one first ground terminal 4c or one second ground terminal 4d between the first differential signal pair 4a and the second differential signal pair 4b.

[0153] like Figure 35As shown, for the same first terminal group W1, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction; for the same second terminal group W2, a plurality of first contact portions 41 are aligned in the left-right direction, a plurality of first connecting portions 43 are aligned in the left-right direction, and a plurality of first conductive portions 42 are aligned in the left-right direction.

[0154] like Figure 35 As shown, the structure of the first conductive terminal 4 on the left side of the first differential signal pair 4a is different from that of the first conductive terminal 4 on the left side of the second differential signal pair 4b, and the structure of the first conductive terminal 4 on the right side of the first differential signal pair 4a is also different from that of the first conductive terminal 4 on the right side of the second differential signal pair 4b.

[0155] like Figure 33 As shown, the plurality of second conductive terminals 6 include a plurality of third terminal groups K1 and a plurality of fourth terminal groups K2, which are arranged alternately in the left-right direction. In other embodiments, each of the third terminal group K1 and the fourth terminal group K2 may be provided as only one, or one may be provided as multiple and the other as only one.

[0156] like Figure 33 and Figure 38 As shown, each of the third terminal groups K1 includes only one third ground terminal 6c and one third differential signal pair 6a. The third ground terminal 6c is used to shield one side of the third differential signal pair 6a in the left-right direction. Each of the second terminal groups W2 includes only one fourth ground terminal 6d and one fourth differential signal pair 6b. The fourth ground terminal 6d is used to shield the same side of the fourth differential signal pair 6b in the left-right direction. There is only one third ground terminal 6c or one fourth ground terminal 6d between the third differential signal pair 6a and the fourth differential signal pair 6b.

[0157] like Figure 37 and Figure 38 As shown, for the same third terminal group K1, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction; for the same fourth terminal group K2, a plurality of second contact portions 61 are aligned in the left-right direction, a plurality of second connecting portions 63 are aligned in the left-right direction, and a plurality of second conductive portions 62 are aligned in the left-right direction.

[0158] like Figure 37 As shown, the second conductive terminal 6 on the left side of the third differential signal pair 6a has a different structure than the second conductive terminal 6 on the left side of the fourth differential signal pair 6b, and the second conductive terminal 6 on the right side of the third differential signal pair 6a also has a different structure than the second conductive terminal 6 on the right side of the fourth differential signal pair 6b.

[0159] like Figure 39 and Figure 41 As shown, the second contact portion 61 of the third differential signal pair 6a is shifted forward by a fifth distance L5 relative to the second contact portion 61 of the fourth differential signal pair 6b. That is, the second contact portion 61 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The third pair of differential fingers 7b1 is shifted forward by a sixth distance L6 relative to the fourth pair of differential fingers 7b2. The fifth distance L5 is equal to the sixth distance L6.

[0160] like Figure 39 and Figure 42 As shown, the second conductive portion 62 of the third differential signal pair 6a is shifted forward by a seventh distance L7 relative to the second conductive portion 62 of the fourth differential signal pair 6b. That is, the second conductive portion 62 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second conductive portion 62 of the fourth differential signal pair 6b. The third differential pad 8b1 is shifted forward by an eighth distance L8 relative to the fourth differential pad 8b2. The seventh distance L7 is equal to the eighth distance L8.

[0161] like Figure 39 As shown, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction; the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the front-back direction. When viewed in the left-right direction, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b form multiple intersections. In this embodiment, there are two intersections.

[0162] like Figure 39 As shown, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a is the same as the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b.

[0163] like Figure 40 and Figure 41As shown, the electronic card 200, which mates with the electrical connector 100, has three consecutive adjacent first fingers 7a forming a group that make one-to-one contact with the three first contact portions 41 of a corresponding first terminal group W1, or with the three first contact portions 41 of a corresponding second terminal group W2, on its upper surface. On the lower surface of the electronic card 200, three consecutive adjacent second fingers 7b forming a group that make one-to-one contact with the three second contact portions 61 of a corresponding third terminal group K1, or with the three second contact portions 61 of a corresponding fourth terminal group K2.

[0164] like Figure 42 As shown, for the circuit board 300 soldered to the electrical connector 100, on the upper surface of the circuit board 300, every three consecutive adjacent first contact pads 8a form a group that are connected one-to-one with the three first conductive parts 42 of a corresponding first terminal group W1, or one-to-one with the three first conductive parts 42 of a corresponding second terminal group W2; every three consecutive adjacent second contact pads 8b form a group that are connected one-to-one with the three second conductive parts 62 of a corresponding third terminal group K1, or one-to-one with the three second conductive parts 62 of a corresponding fourth terminal group K2.

[0165] like Figures 43 to 53 The image shows a fifth embodiment of the electrical connector 100 in the connector assembly of the present invention.

[0166] like Figure 43 and Figure 44 As shown, the plurality of first conductive terminals 4 include a plurality of first terminal groups W1 and a plurality of second terminal groups W2, which are arranged alternately in the left-right direction. In other embodiments, each of the first terminal group W1 and the second terminal group W2 may be provided with only one, or one may be provided with multiple and the other with only one.

[0167] like Figure 44 and Figure 45 As shown, each of the first terminal groups W1 includes only one first ground terminal 4c and one first differential signal pair 4a, and each of the second terminal groups W2 includes only one second ground terminal 4d and one second differential signal pair 4b. There is only one first ground terminal 4c or one second ground terminal 4d between the first differential signal pair 4a and the second differential signal pair 4b.

[0168] like Figure 45 and Figure 46As shown, the first connection portion 43 of the first grounding terminal 4c includes two independently separated first channels 43a and a first through hole 43b. The first through hole 43b passes through the first grounding terminal 4c and separates the two first channels 43a in the left-right direction. The two first channels 43a of the same first grounding terminal 4c are at least partially staggered in the up-down direction, and the two first channels 43a of the same first grounding terminal 4c are at least partially staggered in the front-back direction.

[0169] like Figure 45 and Figure 46 As shown, the first connection portion 43 of the second grounding terminal 4d includes two independently separated second channels 43c and a second through hole 43d. The second through hole 43d passes through the second grounding terminal 4d and separates the two second channels 43c in the left-right direction. The two second channels 43c of the same second grounding terminal 4d are at least partially staggered in the up-down direction, and the two second channels 43c of the same second grounding terminal 4d are at least partially staggered in the front-back direction.

[0170] like Figure 46 As shown, multiple first contact portions 41 of the same first terminal group W1 are aligned in the left-right direction, multiple first conductive portions 42 of the same first terminal group W1 are aligned in the left-right direction, multiple first contact portions 41 of the same second terminal group W2 are aligned in the left-right direction, and multiple first conductive portions 42 of the same second terminal group W2 are aligned in the left-right direction.

[0171] like Figure 46 As shown, for the same first terminal group W1, a plurality of first connection portions 43 of the first differential signal pair 4a and a first channel 43a adjacent to the first differential signal pair 4a are aligned in the left-right direction, while another first channel 43a of the first ground terminal 4c and the first connection portion 43 of the adjacent second differential signal pair 4b are at least partially aligned in the left-right direction.

[0172] like Figure 46 As shown, for the same second terminal group W2, a plurality of first connection portions 43 of the second differential signal pair 4b and a second channel 43b adjacent to the second differential signal pair 4b are aligned in the left-right direction, while another second channel 43b of the second ground terminal 4d is at least partially aligned in the left-right direction with the first connection portion 43 of the adjacent first differential signal pair 4a.

[0173] like Figure 43As shown, the plurality of second conductive terminals 6 include a plurality of third terminal groups K1 and a plurality of fourth terminal groups K2, which are arranged alternately in the left-right direction. In other embodiments, each of the third terminal group K1 and the fourth terminal group K2 may be provided as only one, or one may be provided as multiple and the other as only one.

[0174] like Figure 50 As shown, each of the third terminal groups K1 includes only one third ground terminal 6c and one third differential signal pair 6a, and each of the fourth terminal groups K2 includes only one fourth ground terminal 6d and one fourth differential signal pair 6b. There is only one third ground terminal 6c or one fourth ground terminal 6d between the third differential signal pair 6a and the fourth differential signal pair 6b.

[0175] like Figure 51 and Figure 52 As shown, the second connection portion 63 of the third grounding terminal 6c includes two independently separated third channels 63a and a third through hole 63b. The third through hole 63b passes through the third grounding terminal 6c and separates the two third channels 63a in the left-right direction. The two third channels 63a of the same third grounding terminal 6c are at least partially staggered in the up-down direction, and the two third channels 63a of the same third grounding terminal 6c are at least partially staggered in the front-back direction.

[0176] like Figure 51 and Figure 52 As shown, the second connection portion 63 of the fourth grounding terminal 6d includes two independently separated fourth channels 63c and a fourth through hole 63d. The fourth through hole 63d passes through the second grounding terminal 6d and separates the two fourth channels 63c in the left-right direction. The two fourth channels 63c of the same fourth grounding terminal 6d are at least partially staggered in the up-down direction, and the two fourth channels 63c of the same fourth grounding terminal 6d are at least partially staggered in the front-back direction.

[0177] like Figure 51 As shown, multiple second contact portions 61 of the same third terminal group K1 are aligned in the left-right direction, multiple second conductive portions 62 of the same third terminal group K1 are aligned in the left-right direction, multiple second contact portions 61 of the same fourth terminal group K2 are aligned in the left-right direction, and multiple second conductive portions 62 of the same fourth terminal group K2 are aligned in the left-right direction.

[0178] like Figure 50 and Figure 51As shown, for the same third terminal group K1, the plurality of second connection portions 63 of the third differential signal pair 6a and a third channel 63a adjacent to the third differential signal pair 6a are aligned in the left-right direction, while the other third channel 63a of the third ground terminal 6c is at least partially aligned in the left-right direction with the second connection portion 63 of the adjacent fourth differential signal pair 6b; for the same fourth terminal group K2, the plurality of second connection portions 63 of the fourth differential signal pair 6b and a fourth channel 63c adjacent to the fourth differential signal pair 6b are aligned in the left-right direction, while the other fourth channel 63c of the fourth ground terminal 6d is partially aligned in the left-right direction with the second connection portion 63 of the adjacent third differential signal pair 6a.

[0179] like Figure 51 As shown, the second conductive terminal 6 on the left side of the third differential signal pair 6a has a different structure than the second conductive terminal 6 on the left side of the fourth differential signal pair 6b, and the second conductive terminal 6 on the right side of the third differential signal pair 6a also has a different structure than the second conductive terminal 6 on the right side of the fourth differential signal pair 6b.

[0180] like Figure 53 and Figure 55 As shown, the second contact portion 61 of the third differential signal pair 6a is shifted forward by a fifth distance L5 relative to the second contact portion 61 of the fourth differential signal pair 6b. That is, the second contact portion 61 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second contact portion 61 of the fourth differential signal pair 6b. The third pair of differential fingers 7b1 is shifted forward by a sixth distance L6 relative to the fourth pair of differential fingers 7b2. The fifth distance L5 is equal to the sixth distance L6.

[0181] like Figure 53 and Figure 56 As shown, the second conductive portion 62 of the third differential signal pair 6a is shifted forward by a seventh distance L7 relative to the second conductive portion 62 of the fourth differential signal pair 6b. That is, the second conductive portion 62 of the third differential signal pair 6a is positioned further forward in the front-back direction relative to the second conductive portion 62 of the fourth differential signal pair 6b. The third differential pad 8b1 is shifted forward by an eighth distance L8 relative to the fourth differential pad 8b2. The seventh distance L7 is equal to the eighth distance L8.

[0182] like Figure 53As shown, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the vertical direction; the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b are partially offset in the front-back direction. When viewed in the left-right direction, the second connection portion 63 of the third differential signal pair 6a and the second connection portion 63 of the fourth differential signal pair 6b form multiple intersections. In this embodiment, there are two intersections.

[0183] like Figure 53 As shown, the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the third differential signal pair 6a is the same as the length of the conduction path between the second contact portion 61 and the second conductive portion 62 of the fourth differential signal pair 6b.

[0184] like Figure 54 and Figure 55 As shown, the electronic card 200, which mates with the electrical connector 100, has three consecutive adjacent first fingers 7a forming a group that make one-to-one contact with the three first contact portions 41 of a corresponding first terminal group W1, or with the three first contact portions 41 of a corresponding second terminal group W2, on its upper surface. On the lower surface of the electronic card 200, three consecutive adjacent second fingers 7b forming a group that make one-to-one contact with the three second contact portions 61 of a corresponding third terminal group K1, or with the three second contact portions 61 of a corresponding fourth terminal group K2.

[0185] like Figure 56 As shown, for the circuit board 300 soldered to the electrical connector 100, on the upper surface of the circuit board 300, every three consecutive adjacent first contact pads 8a form a group that are connected one-to-one with the three first conductive parts 42 of a corresponding first terminal group W1, or one-to-one with the three first conductive parts 42 of a corresponding second terminal group W2; every three consecutive adjacent second contact pads 8b form a group that are connected one-to-one with the three second conductive parts 62 of a corresponding third terminal group K1, or one-to-one with the three second conductive parts 62 of a corresponding fourth terminal group K2.

[0186] The electrical connector and connector assembly of the present invention also have the following beneficial effects:

[0187] 1. By shifting the first contact portion 41 of the first differential signal pair 4a to one side in the front-to-back direction relative to the first contact portion 41 of the second differential signal pair 4b, and shifting the first conductive portion 42 of the first differential signal pair 4a to the same side in the front-to-back direction relative to the first conductive portion 42 of the second differential signal pair 4b, the distance between two adjacent differential signal pairs is increased, reducing crosstalk between adjacent differential signal pairs and thus improving high-frequency crosstalk. The length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the first differential signal pair 4a is the same as the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the second differential signal pair 4b, thereby reducing the delay difference between adjacent differential signal pairs.

[0188] 2. By placing the two first grounding terminals 4c on the left and right sides of the first differential signal pair 4a and adjacent to it, and by arranging the two first grounding terminals 4c and the first differential signal pair 4a side by side, while the second differential signal pair 4b is not provided with a grounding terminal arranged side by side with it, the two first grounding terminals 4c can shield the opposite sides of the first differential signal pair 4a. The two first grounding terminals 4c can absorb the electromagnetic radiation generated by the first differential signal pair 4a and the second differential signal pair 4b respectively, thereby suppressing the mutual capacitance and mutual inductance between the first differential signal pair 4a and the second differential signal pair 4b, thereby further reducing the mutual interference between the two adjacent differential signal pairs. Furthermore, the effect of the two first grounding terminals 4c on the first differential signal pair 4a is balanced, and the effect of the first grounding terminals 4c on the left and right sides of the second differential signal pair 4b is also balanced.

[0189] 3. By partially offsetting the first connection portion 43 of the first differential signal pair 4a and the first connection portion 43 of the second differential signal pair 4b in the vertical direction, and by partially offsetting the first connection portion 43 of the first differential signal pair 4a and the first connection portion 43 of the second differential signal pair 4b in the front-back direction, the distance between the two first connection portions 43 of the two adjacent differential signal pairs is increased, thereby reducing the mutual interference between the two adjacent differential signal pairs.

[0190] 4. By setting a first grounding terminal 4c on either the left or right side of the first differential signal pair 4a in the first terminal group W1, and setting a second grounding terminal 4d on the same side of the second differential signal pair 4b in the second terminal group W2, the first grounding terminal 4c and the second grounding terminal 4d can respectively absorb the electromagnetic radiation generated by the first differential signal pair 4a and the second differential signal pair 4b.

[0191] 5. The first grounding terminal 4c is provided with two first channels 43a, and the second grounding terminal 4d is provided with two second channels 43b. One first grounding terminal 4c or one second grounding terminal 4d is provided between the first differential signal pair 4a and the second differential signal pair 4b, so that one first grounding terminal 4c or one second grounding terminal 4d can respectively shield the two adjacent differential signal pairs.

[0192] 6. After the first differential signal pair 4a and the second differential signal pair 4b are staggered, the first differential finger pair 7a1 and the second differential finger pair 7a2, the first differential pad pair 8a1 and the second differential pad pair 8a2 are correspondingly displaced, so that the sum of the length of the fifth path P1, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the first differential signal pair 4a, and the length of the seventh path Q1 is equal to the sum of the length of the sixth path P2, the length of the conduction path between the first contact portion 41 and the first conductive portion 42 of the second differential signal pair 4b, and the length of the eighth path Q2, thereby reducing the delay difference between the first differential signal pair 4a and the second differential signal pair 4b and avoiding the Skew problem caused by excessive signal transmission path drop.

[0193] 7. After the second contact portion 61 of the third differential signal pair 6a and the second contact portion 61 of the fourth differential signal pair 6b are staggered, the bending direction of the second conductive portion 62 is opposite to the bending direction of the first conductive portion 42. Furthermore, the different bending methods of the second connecting portion 63 of the third differential signal pair 6a and the second connecting portion 63 of the fourth differential signal pair 6b not only facilitate wiring on the circuit board 300, but also ensure that the length of the first pair of paths M1, the second contact portion 61 of the third differential signal pair 6a, and the second contact portion 62 of the fourth differential signal pair 6b are all optimized. The sum of the length of the conduction path between the second conductive parts 62 and the length of the third pair of paths N1 is equal to the sum of the length of the second pair of paths M2, the length of the conduction path between the second contact part 61 and the second conductive part 62 of the fourth differential signal pair 6b, and the length of the fourth pair of paths N2. That is, by misaligning the length or height of the terminals, the signal transmission distance is compensated to be consistent, reducing the delay difference between the third differential signal pair 6a and the fourth differential signal pair 6b, and avoiding the Skew problem caused by excessive signal transmission path drop.

[0194] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector, characterized in that, include: The first insulator; A plurality of first conductive terminals are disposed on the first insulator. Each first conductive terminal has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion. The plurality of first conductive terminals include two differential signal pairs arranged adjacent to each other in the left-right direction. One of the differential signal pairs is defined as the first differential signal pair, and the other is defined as the second differential signal pair. The first contact portion of the first differential signal pair is offset to one side in the front-back direction relative to the first contact portion of the second differential signal pair. The first conductive portion of the first differential signal pair is offset to the same side in the front-back direction relative to the first conductive portion of the second differential signal pair. The length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair is the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair.

2. The electrical connector according to claim 1, characterized in that: The distance by which the first contact portion of the first differential signal pair and the first contact portion of the second differential signal pair are offset in the front-back direction is defined as the first distance, and the distance by which the first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are offset in the front-back direction is defined as the second distance, and the first distance is equal to the second distance.

3. The electrical connector according to claim 1, characterized in that: The first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair, and the first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair.

4. The electrical connector according to claim 1, characterized in that: Viewed from the left and right, the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the vertical direction, and the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the front and back direction.

5. The electrical connector according to claim 1, characterized in that: The plurality of first conductive terminals include at least one first terminal group and at least one second terminal group, the at least one first terminal group and the at least one second terminal group being arranged alternately in the left-right direction, each first terminal group including only one first ground terminal and one first differential signal pair, each second terminal group including only one second ground terminal and one second differential signal pair, and a first ground terminal or a second ground terminal being provided between the first differential signal pair and the second differential signal pair; for the same first terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction; for the same second terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction.

6. The electrical connector according to claim 1, characterized in that: The plurality of first conductive terminals include a plurality of first terminal groups and a plurality of second terminal groups, which are arranged alternately in the left-right direction. Each first terminal group includes a first differential signal pair and two first ground terminals located on the left and right sides of the first differential signal pair and adjacent to the first differential signal pair. Each second terminal group includes only one second differential signal pair. For the same first terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction. For the same second terminal group, a plurality of first contact portions are aligned in the left-right direction, a plurality of first connection portions are aligned in the left-right direction, and a plurality of first conductive portions are aligned in the left-right direction.

7. The electrical connector according to claim 1, characterized in that: The device further includes a second insulator and a plurality of second conductive terminals disposed on the second insulator. The plurality of second conductive terminals are arranged in a left-right direction. The first insulator is fixedly connected to the second insulator. Each second conductive terminal includes a second contact portion, a second conductive portion, and a second connecting portion connecting the second contact portion and the second conductive portion. The second contact portion is located in front of the second conductive portion. The plurality of second conductive terminals include two adjacent differential signal pairs. One of the differential signal pairs is defined as a third differential signal pair, and the other is defined as a fourth differential signal pair. The second contact portion of the third differential signal pair is offset to one side in the front-back direction relative to the second contact portion of the fourth differential signal pair.

8. The electrical connector according to claim 7, characterized in that: The second conductive portion of the third differential signal pair and the second conductive portion of the fourth differential signal pair are aligned in the left-right direction. When viewed in the left-right direction, the second connecting portion of the third differential signal pair and the second connecting portion of the fourth differential signal pair are at least partially offset in the up-down direction.

9. The electrical connector according to claim 7, characterized in that: The second conductor of the third differential signal pair is offset on the other side in the front-back direction relative to the second conductor of the fourth differential signal pair.

10. The electrical connector according to claim 7, characterized in that: The length of the conduction path between the second contact portion and the second conductive portion of the third differential signal pair is the same as the length of the conduction path between the second contact portion and the second conductive portion of the fourth differential signal pair.

11. An electrical connector, characterized in that, include: The first insulator; A plurality of first conductive terminals are disposed on the first insulator. Each first conductive terminal has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion. The plurality of first conductive terminals include two differential signal pairs arranged adjacent to each other in the left-right direction. One of the differential signal pairs is defined as the first differential signal pair, and the other is defined as the second differential signal pair. The first contact portion of the first differential signal pair is offset to one side in the front-back direction relative to the first contact portion of the second differential signal pair. The first conductive portion of the first differential signal pair is offset to the same side in the front-back direction relative to the first conductive portion of the second differential signal pair. The plurality of first conductive terminals include a plurality of first terminal groups and a plurality of second terminal groups, which are arranged alternately in the left-right direction. Each first terminal group includes only one first ground terminal and one first differential signal pair, and each second terminal group includes only one second ground terminal and one second differential signal pair. A first ground terminal or a second ground terminal is provided between the first differential signal pair and the second differential signal pair. The first connection portion of the first ground terminal includes two independently separated first channels, and the first connection portion of the second ground terminal includes two independently separated second channels. The plurality of first contacts in the same first terminal group are aligned in the left-right direction, the plurality of first conductive portions in the same first terminal group are aligned in the left-right direction, the plurality of first contacts in the same second terminal group are aligned in the left-right direction, and the plurality of first conductive portions in the same second terminal group are aligned in the left-right direction. For the same first terminal group... Specifically, the plurality of first connection portions of the first differential signal pair and a first channel adjacent to the first differential signal pair are aligned in the left-right direction, while the other first channel of the first ground terminal is at least partially aligned in the left-right direction with the first connection portion of the adjacent second differential signal pair; for the same second terminal group, the plurality of first connection portions of the second differential signal pair and a second channel adjacent to the second differential signal pair are aligned in the left-right direction, while the other second channel of the second ground terminal is at least partially aligned in the left-right direction with the first connection portion of the adjacent first differential signal pair; viewed in the left-right direction, the two first channels of the same first ground terminal are at least partially offset in the up-down direction, and the two first channels of the same first ground terminal are at least partially offset in the front-back direction; the two second channels of the same second ground terminal are at least partially offset in the up-down direction, and the two second channels of the same second ground terminal are at least partially offset in the front-back direction.

12. A connector assembly, characterized in that, include: A circuit board, wherein a plurality of first contact pads are provided on one of its upper and lower surfaces; An electronic card, wherein the electronic card has a plurality of first fingers on one of its upper and lower surfaces; An electrical connector is mounted on the circuit board. The electrical connector includes a body, a first insulator disposed on the body, and a plurality of first conductive terminals disposed on the first insulator. The body has a mating surface and a recessed insertion cavity extending rearward from the mating surface for inserting the electronic card; Each of the first conductive terminals has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion. The first contact portion is exposed in the insertion cavity for connecting with the first hand guide. The first conductive portion is exposed in the body for connecting with the first contact pad. The first connecting portion is fixed to the first insulator. The plurality of first conductive terminals include two differential signal pairs arranged adjacent to each other in a left-right direction. One of the differential signal pairs is defined as a first differential signal pair and the other as a second differential signal pair. The first contact portion of the first differential signal pair is offset by a first distance relative to the first contact portion of the second differential signal pair in a front-back direction. The first conductive portion of the first differential signal pair is offset by a second distance relative to the first conductive portion of the second differential signal pair in the same front-back direction. The first distance is equal to the second distance. The length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair is the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair. A pair of first contact pads connected to the first differential signal pair is defined as the first pair of differential pads, and another pair of first contact pads connected to the second differential signal pair is defined as the second pair of differential pads. A pair of first fingers connected to the first differential signal pair is defined as the first pair of differential fingers, and another pair of first fingers connected to the second differential signal pair is defined as the second pair of differential fingers. The first pair of differential fingers is offset by a third distance relative to the second pair of differential fingers on the same side in the front-back direction. The first pair of differential pads is offset by a fourth distance relative to the second pair of differential pads on the same side in the front-back direction. The third distance is equal to the fourth distance, and the first distance is equal to the third distance.

13. The connector assembly according to claim 12, characterized in that: The first conductive portion is formed by bending backward from one end of the first connecting portion; The circuit board is provided with a plurality of second contact pads, and the first contact pad and the second contact pad are located on the same surface of the circuit board; The electronic card is provided with multiple second fingers, and the first finger and the second finger are located on the upper and lower opposite surfaces of the electronic card; The electrical connector further includes a second insulator and a plurality of second conductive terminals disposed on the second insulator. The plurality of second conductive terminals are arranged in a left-right direction. The first insulator is fixedly connected to the second insulator. Each second conductive terminal includes a second contact portion, a second conductive portion, and a second connecting portion connecting the second contact portion and the second conductive portion. The second contact portion is located in front of the second conductive portion and is exposed in the insertion cavity for contacting the second hand. The second conductive portion is bent forward from one end of the second connecting portion and exposed to the body for contacting the second contact pad. The second connecting portion is fixed to the second insulator. The plurality of second conductive terminals include two adjacent differential signal pairs. One of the differential signal pairs is defined as the third differential signal pair and the other as the fourth differential signal pair. The second contact portion of the third differential signal pair is offset by a fifth distance on the same side in the front-back direction relative to the second contact portion of the fourth differential signal pair. A pair of second contact pads connected to the third differential signal pair is defined as the third pair of differential pads, and another pair of second contact pads connected to the fourth differential signal pair is defined as the fourth pair of differential pads; a pair of second fingers connected to the third differential signal pair is defined as the third pair of differential fingers, and another pair of second fingers connected to the fourth differential signal pair is defined as the fourth pair of differential fingers. The third pair of differential fingers is offset by a sixth distance relative to the fourth pair of differential fingers on the same side in the front-back direction, and the fifth distance is equal to the sixth distance.

14. The connector assembly according to claim 13, characterized in that: The electronic card has multiple first paths, each first path connecting to a corresponding second finger and the second contact portion of the conductive part. A pair of first paths connected to the third pair of differential fingers is defined as a first pair of paths, and another pair of first paths connected to the fourth pair of differential fingers is defined as a second pair of paths. The upper surface of the circuit board has multiple second paths, each second path connecting to a corresponding second contact pad and the second conductive part of the conductive part. A pair of second paths connected to the third pair of differential pads is defined as a third pair of paths, and a pair of second paths connected to the fourth pair of differential pads is defined as a fourth pair of paths. The sum of the length of the first pair of paths, the length of the conductive path between the second contact portion and the second conductive part of the third differential signal pair, and the length of the third pair of paths is equal to the sum of the length of the second pair of paths, the length of the conductive path between the second contact portion and the second conductive part of the fourth differential signal pair, and the length of the fourth pair of paths.

15. An electrical connector, characterized in that, include: The first insulator; A plurality of first conductive terminals are arranged in a left-right direction and disposed on the first insulator. Each first conductive terminal has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion. The plurality of first conductive terminals include at least one first terminal group and at least one second terminal group. The at least one first terminal group and the at least one second terminal group are arranged alternately in a left-right direction. The first terminal group includes a first differential signal pair and two first ground terminals located on the left and right sides of the first differential signal pair and adjacent to the first differential signal pair. The second terminal group includes only one second differential signal pair. For the same first terminal group, the plurality of first contacts are aligned in a left-right direction. A connecting portion is aligned in the left-right direction, and multiple first conductive portions are aligned in the left-right direction; for the same second terminal group, multiple first contact portions are aligned in the left-right direction, multiple first connecting portions are aligned in the left-right direction, and multiple first conductive portions are aligned in the left-right direction; the first contact portion of the first differential signal pair is offset to one side in the front-back direction relative to the first contact portion of the second differential signal pair, and the first conductive portion of the first differential signal pair is offset to the same side in the front-back direction relative to the first conductive portion of the second differential signal pair; the length of the conduction path between the first contact portion and the first conductive portion of the first differential signal pair is the same as the length of the conduction path between the first contact portion and the first conductive portion of the second differential signal pair.

16. The electrical connector according to claim 15, characterized in that: The distance by which the first contact portion of the first differential signal pair and the first contact portion of the second differential signal pair are offset in the front-back direction is defined as the first distance, and the distance by which the first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are offset in the front-back direction is defined as the second distance, and the first distance is equal to the second distance.

17. The electrical connector according to claim 15, characterized in that: The first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair, and the first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair.

18. The electrical connector according to claim 15, characterized in that: Viewed from the left and right, the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the vertical direction, and the first connection portion of the first differential signal pair and the first connection portion of the second differential signal pair are at least partially offset from each other in the front and back direction.

19. An electrical connector, characterized in that, include: The first insulator; A plurality of first conductive terminals are disposed on the first insulator. Each first conductive terminal has a first contact portion, a first conductive portion, and a first connecting portion connecting the first contact portion and the first conductive portion. The first contact portion is located in front of the first conductive portion. The plurality of first conductive terminals include two differential signal pairs arranged in a left-right direction and disposed adjacent to each other. One of the differential signal pairs is defined as the first differential signal pair, and the other is defined as the second differential signal pair. The first contact portion of the first differential signal pair and the first contact portion of the second differential signal pair are spaced apart in the front-back direction, with the first contact portion of the first differential signal pair located in front of the first contact portion of the second differential signal pair. The first conductive portion of the first differential signal pair and the first conductive portion of the second differential signal pair are spaced apart in the front-back direction, with the first conductive portion of the first differential signal pair located in front of the first conductive portion of the second differential signal pair. The first conductive terminal on the left side of the first differential signal pair has the same structure as the first conductive terminal on the left side of the second differential signal pair. The first conductive terminal on the right side of the first differential signal pair has the same structure as the first conductive terminal on the right side of the second differential signal pair. The length of the conduction path between each first contact portion of the first differential signal pair and the corresponding first conductive portion is equal to the length of the conduction path between each first contact portion of the second differential signal pair and the corresponding first conductive portion.

Images