Wire connectors, board connectors, terminal modules and electrical connection devices

Abstract

An electrical connection device includes a board-end connector and a wire-end connector pluggable into the board-end connector. The board-end connector includes two terminal modules. Each terminal module includes a plurality of board-shaped signal terminals and a plurality of board-shaped ground terminals. Each board-shaped ground terminal has a second board-shaped connecting portion, a second board body portion, a board-shaped resilient contact end, two board-shaped shielding portions respectively connected to both sides of the second board-shaped connecting portion, and two board-shaped tail portions extending downward from the shielding portions. The left-right width of the second board-shaped connecting portion is smaller than the left-right width of the second board body portion, and the extension length of the board-shaped tail portions is greater than or equal to the extension length of the tail ends of the board-shaped signal terminals. Through this design, the present invention provides an electrical connection device that does not compromise mechanical or electrical requirements within a limited space.

Description

Technical Field

[0001] This invention relates to an electrical connection device, and more particularly to an electrical connection device suitable for high data rate applications, and its wire-end connector and board-end connector. Prior Technology

[0002] A known electrical connection device includes a board-end connector and a wire-end connector detachably inserted into the board-end connector. The board-end connector includes a plurality of terminals arranged side-by-side. The wire-end connector includes a plurality of terminals arranged side-by-side.

[0003] To meet the demands of next-generation server systems, electrical connectors must support high data rate transmission while maintaining a smaller overall size. However, as the distance between terminals decreases and becomes closer together, crosstalk issues arise, and the terminal structure must also be robust enough to support the mechanical performance of the assembly process while minimizing size. Therefore, developing electrical connectors that meet both mechanical and electrical requirements within limited physical space is one of the goals that industry players are striving for. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a wire-end connector that can improve upon at least one of the disadvantages of the prior art.

[0005] Therefore, the wire-end connector of the present invention includes an insulating shell, a first terminal sheet, a second terminal sheet, a plurality of first cables, and a plurality of second cables.

[0006] The first terminal sheet is disposed in the insulating housing and includes several first signal terminal pairs, several first ground terminals, a first ground shield, a second ground shield, and a first covering assembly. Each of the first signal terminal pairs has a first ground terminal on both sides and two first signal terminals. Each first signal terminal has a first body portion, a first tail portion extending outward from both ends of the first body portion, and a first contact portion. Each first ground terminal has a second body portion, a second tail portion extending outward from both ends of the second body portion, and a second contact portion. The first ground shield is electrically connected to the second body portions, and the second ground shield is electrically connected to the second tail portions.

[0007] The second terminal sheet is disposed in the insulating housing and includes several second signal terminal pairs, several second ground terminals, a third ground shield, a fourth ground shield, and a second covering assembly. Each of the second signal terminal pairs has a second ground terminal on both sides and two second signal terminals. Each second signal terminal has a third body portion, a third tail portion extending outward from both ends of the third body portion, and a third contact portion. Each second ground terminal has a fourth body portion, a fourth tail portion extending outward from both ends of the fourth body portion, and a fourth contact portion. The third ground shield is electrically connected to the fourth body portions, and the fourth ground shield is electrically connected to the fourth tail portions.

[0008] The first cables are electrically connected to the first tail and the second tail. The second cables are electrically connected to the third tail and the fourth tail.

[0009] Another object of the present invention is to provide a board-end connector that can improve upon at least one of the disadvantages of the prior art.

[0010] Therefore, the board-end connector of the present invention includes a metal housing, an insulating body, and two terminal modules. The insulating body is disposed within the metal housing.

[0011] The terminal modules are housed within the insulating body. Each terminal module includes an insulating base disposed within the insulating body, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has several plate-shaped signal terminal pairs and several plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on each side and two spaced-apart plate-shaped signal terminals. Each plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate-shaped body portion extending outward from both ends of the first plate-shaped connecting portion, a tail end, and an elastic contact end extending outward from the first plate-shaped body portion. The width of the first plate-shaped body portion is greater than the width of the elastic contact end. The two first plate-shaped body portions of the plate-shaped signal terminal pair are spaced a predetermined distance apart. The plate-shaped grounding terminal has a second plate-shaped connecting portion at least partially covered by the insulating base, a second plate body portion extending outward from the second plate-shaped connecting portion, a plate-shaped elastic contact end extending outward from the second plate body portion, two plate-shaped shielding portions extending from both sides of the second plate-shaped connecting portion along the extending direction of the tail end, and two plate-shaped tail portions extending downward from the extending ends of the plate-shaped shielding portions. The width of the second plate body portion is greater than the width of the plate-shaped elastic contact end and greater than the width of the first plate body portion. The extending length of the plate-shaped tail portion in the same direction as the extending direction of the tail end is greater than or equal to that of the tail end. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminals, and are respectively located on two opposite sides of the plate-shaped grounding terminals.

[0012] Another object of the present invention is to provide an electrical connection device that can improve upon at least one of the disadvantages of the prior art.

[0013] Therefore, the electrical connection device of the present invention includes a wire-end connector as described above and a board-end connector as described above. These terminal modules are respectively electrically connected to the first terminal sheet and the second terminal sheet of the wire-end connector.

[0014] The advantage of this invention is that, by including the aforementioned wire-end connector and the aforementioned board-end connector in the electrical connection device, an electrical connection device is provided that does not affect mechanical and electrical requirements when physical space is limited.

[0015] Another object of the present invention is to provide a board-end connector that can improve upon at least one of the disadvantages of the prior art.

[0016] Therefore, the board-end connector of the present invention includes a metal housing, an insulating body, and two terminal modules. The insulating body is disposed within the metal housing.

[0017] The terminal modules are housed within the insulating body. Each terminal module includes an insulating base disposed within the insulating body, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has several plate-shaped signal terminal pairs and several plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on each side and two plate-shaped signal terminals spaced apart. Each plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate-shaped body portion extending outward from both ends of the first plate-shaped connecting portion, a tail end, and an elastic contact end extending outward from the first plate-shaped body portion. The first plate-shaped body portion has a first surface facing another first plate-shaped body portion and a second surface opposite to the first surface. The first surface portion has a first inclined portion extending downward from the elastic contact end and inclined towards another first plate-shaped body portion, and a first straight portion connecting the first inclined portion and the first plate-shaped connecting portion. The first straight facet is parallel to the first straight facet of the other first plate body portion. The second facet has a second inclined facet extending upward from the first plate-shaped connecting portion and inclined towards the other first plate body portion. The first plate-shaped connecting portion has a third facet facing the other first plate-shaped connecting portion and having a third straight facet, which is parallel to the third straight facet of the other first plate-shaped connecting portion. The plate-shaped grounding terminal has a second plate-shaped connecting portion at least partially covered by the insulating base, a second plate body portion extending outward from the second plate-shaped connecting portion, a plate-shaped elastic contact end extending outward from the second plate body portion, two plate-shaped shielding portions extending from both sides of the second plate-shaped connecting portion along the extension direction of the tail end, and two plate-shaped tail portions extending downward from the extension ends of the plate-shaped shielding portions. The width of the second plate body portion is greater than the width of the plate-shaped elastic contact end and greater than the width of the first plate body portion. The second plate body portion has an opening and includes two side segments defining both sides of the opening. The width of the side segments gradually increases from top to bottom. The extension length of the plate-shaped tail portion in the same direction as the tail end is greater than or equal to that tail end. The distance between the second plate-shaped connecting portion of the plate-shaped grounding terminal and the first plate-shaped connecting portion of the adjacent plate-shaped signal terminal is greater than the distance between the second plate body portion of the plate-shaped grounding terminal and the first plate body portion of the adjacent plate-shaped signal terminal. The distance between the second plate-shaped connecting portion of the plate-shaped grounding terminal and the first plate-shaped connecting portion of the adjacent plate-shaped signal terminal is greater than the distance between the first plate-shaped connecting portions of the plate-shaped signal terminal pair. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminals, and are respectively located on two opposite sides of the plate-shaped grounding terminals.

[0018] Another object of the present invention is to provide a terminal module that can improve upon at least one of the disadvantages of the prior art.

[0019] Therefore, the terminal module of the present invention includes an insulating base, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has several plate-shaped signal terminal pairs and several plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on both sides and two spaced plate-shaped signal terminals. The plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate body portion and a tail end extending outward from both ends of the first plate-shaped connecting portion, and an elastic contact end extending outward from the first plate body portion. The plate-shaped grounding terminal has a second plate-shaped connecting portion at least partially covered by the insulating base, a second plate body portion extending outward from the second plate-shaped connecting portion, a plate-shaped elastic contact end extending outward from the second plate body portion, two plate-shaped shield portions extending from both sides of the second plate-shaped connecting portion along the extending direction of the tail end, and two plate-shaped tail portions extending downward from the extending ends of the plate-shaped shield portions. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminals, and are respectively located on two opposite sides of the plate-shaped grounding terminals.

[0020] The advantage of this invention is that, through the design of the board-shaped signal terminal and the board-shaped ground terminal, this invention can provide a board-end connector that does not affect mechanical and electrical requirements under space constraints. Simple Explanation of the Diagram

[0021] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Figure 1 is a perspective view illustrating an embodiment of the wire-end connector, board-end connector, and electrical connection device of the present invention, and showing the state in which the wire-end connector and the board-end connector are inserted together; Figure 2 is a cross-sectional view illustrating the state in which the wire-end connector and the board-end connector of this embodiment are inserted together; Figure 3 is an exploded perspective view illustrating the separation of the wire-end connector and the board-end connector in this embodiment; Figure 4 is an exploded perspective view illustrating the assembly relationship between a metal housing, an insulating body, and two terminal modules of the board-end connector in this embodiment. Figure 5 is an incomplete exploded perspective view illustrating the assembly relationship of the terminal modules of the board-end connector in this embodiment; Figure 6 is an exploded perspective view illustrating the assembly relationship of one of the terminal modules in this embodiment. An insulating base is omitted in the figure. Figure 7 is an incomplete perspective view illustrating the arrangement of several plate-shaped signal terminal pairs and several plate-shaped grounding terminals in one of the terminal modules of this embodiment; Figure 8 is an incomplete front view illustrating one of the plate-shaped signal terminal pairs of this embodiment with two adjacent plate-shaped ground terminals; Figure 9 is a side view illustrating one of the terminal modules of this embodiment; an insulating base is omitted in the figure. Figure 10 is an incomplete top sectional view illustrating one of the terminal modules of this embodiment; an insulating base is omitted in the figure. Figure 11 is an exploded perspective view illustrating the assembly relationship of the wire-end connector in this embodiment; Figure 12 is a perspective view illustrating a first terminal sheet and a second terminal sheet of the wire connector in this embodiment; Figure 13 is an exploded perspective view illustrating the assembly relationship between the first terminal sheet and the second terminal sheet in this embodiment. Figure 14 is an exploded perspective view illustrating the assembly relationship between the first terminal sheet and several first cables in this embodiment. A first covering component is omitted in the figure. Figure 15 is an incomplete perspective view illustrating the assembly relationship between the first terminal sheet and the first cables in this embodiment; the first covering component is omitted in the figure. Figure 16 is an exploded perspective view illustrating the assembly relationship between the second terminal sheet and several second cables in this embodiment. A second covering component is omitted in the figure. Figure 17 is an incomplete perspective view illustrating the assembly relationship between the second terminal sheet and the second cables in this embodiment. The second covering component is omitted in the figure. Implementation

[0022] Referring to Figures 1 to 3, one embodiment of the electrical connection device 100 of the present invention is suitable for mounting on a circuit board 9 and includes a board-end connector 101 and a wire-end connector 102. The board-end connector 101 is disposed on the circuit board 9 and electrically connected to the circuit board 9. The wire-end connector 102 is detachably plugged into the board-end connector 101.

[0023] For ease of subsequent explanation, the electrical connection device 100 is defined by a first direction D1, a second direction D2 perpendicular to the first direction D1, and a third direction D3 perpendicular to both the first direction D1 and the second direction D2. In this embodiment, the first direction D1 is exemplified by the front-back direction, with the arrow in Figure 1 pointing forward and the opposite direction being back. The second direction D2 is exemplified by the up-down direction, with the arrow in Figure 1 pointing up and the opposite direction being down. The third direction D3 is exemplified by the left-right direction, with the arrow in Figure 1 pointing left and the opposite direction being right.

[0024] Referring to Figures 3 to 5, the board-end connector 101 includes a metal housing 11, an insulating body 12 covered by the metal housing 11, and two terminal modules 2 disposed in the insulating body 12.

[0025] The metal casing 11 is rectangular in shape and extends longitudinally along the third direction D3, and includes several first pins 111 located at the four corners. The metal casing 11 is inserted into the circuit board 9 using these first pins 111.

[0026] The insulating body 12 is rectangular in shape and extends longitudinally along the third direction D3, and is disposed within the metal housing 11. The insulating body 12 includes two second pins 121 spaced apart along the third direction D3 and inserted into the circuit board 9. The insulating body 12 has an accommodating space 120 extending along the third direction D3 and penetrating along the second direction D2.

[0027] Referring to Figures 4 to 6, the terminal modules 2 are disposed in the accommodating space 120 and are fixedly connected to the insulating body 12. The terminal modules 2 are arranged in the opposite direction along the first direction D1. Since the terminal modules 2 have the same structure, the specific structure of the terminal module 2 located at the front will be described below.

[0028] The terminal module 2 includes an insulating base 21, a terminal array 22, a plate-shaped grounding shield 23, and a corrugated grounding shield 24. The insulating base 21 covers the terminal array 22, the plate-shaped grounding shield 23, and the corrugated grounding shield 24. The insulating base 21 has a base portion 211 and several protrusions 212 spaced along a third direction D3 and protruding from the rear side of the base portion 211. The base portion 211 and the protrusions 212 cooperate to define several slots 213 spaced along the third direction D3 and penetrating along the second direction D2. The protrusions 212 of the insulating base 21 engage vertically with the corresponding slots 213 of the insulating base 21 of another terminal module 2, so that the insulating bases 21 of the two terminal modules 2 can engage with each other. It should be noted that the insulating bases 21 of the two terminal modules 2 are not limited to the manner described above, as long as they can be connected and fixed.

[0029] Referring to Figures 6 to 9, the terminal array 22 has a plurality of plate-shaped signal terminal pairs 25 and a plurality of plate-shaped ground terminals 26 arranged at intervals along the third direction D3. A plate-shaped ground terminal 26 is provided on each side of a plate-shaped signal terminal pair 25, and a plate-shaped signal terminal pair 25 is provided on each side of a plate-shaped ground terminal 26. Specifically, the terminal array 22 is arranged sequentially along the third direction D3 in the order of plate-shaped ground terminals 26, plate-shaped signal terminal pairs 25, plate-shaped ground terminals 26, and plate-shaped signal terminal pairs 25.

[0030] The plate-shaped signal terminal pair 25 has two symmetrical plate-shaped signal terminals 27. The plate-shaped signal terminal 27 extends vertically and has a first plate-shaped connecting portion 271 partially covered by the insulating base 21, a first plate body portion 272 extending upward from the first plate-shaped connecting portion 271 and having a width W1 along the third direction D3, an elastic contact end 273 extending upward and forward from the first plate body portion 272 in an arc shape and having a width W2 along the third direction D3, and a tail end 274 extending forward from the end of the first plate-shaped connecting portion 271 and connected and fixed to the circuit board 9 and electrically connected to the circuit board 9.

[0031] The first plate-shaped connecting portion 271 has a third surface 277 facing another first plate-shaped connecting portion 271, the third surface 277 has a third straight surface 2771, the third straight surface 2771 is parallel to the third straight surface 2771 of the other first plate-shaped connecting portion 271.

[0032] The width W1 of the first plate portion 272 is greater than the width W2 of the elastic contact end 273. The first plate portion 272 has a first surface 275 facing another first plate portion 272 and a second surface 276 opposite to the first surface 275 (i.e., facing the adjacent plate-shaped grounding terminal 26). The first surface 275 has a first inclined portion 2751 extending downward from the elastic contact end 273 and inclined towards the other first plate portion 272, and a first straight portion 2752 extending downward from the first inclined portion 2751 and connecting to the first plate-shaped connecting portion 271. The first straight portion 2752 is parallel to the first straight portion 2752 of the other first plate portion 272, that is, the first straight portion 2752 is separated from the first straight portion 2752 of the other first plate portion 272 by a predetermined distance. The second surface 276 has a second inclined portion 2761 extending upward from the first plate-shaped connecting portion 271 and inclined toward the other first plate body portion 272, and a second straight portion 2762 extending upward from the second inclined portion 2761 and connecting to the elastic contact end 273. The design of the first inclined portion 2751 and the second inclined portion 2761 ensures uniform stress distribution during the deflection of the plate-shaped signal terminal 27.

[0033] The plate-shaped grounding terminal 26 extends vertically and has a second plate-shaped connecting portion 261 partially covered by the insulating base 21, a second plate body portion 262 extending upward from the second plate-shaped connecting portion 261, a plate-shaped elastic contact end 263 extending upward from the second plate body portion 262 and extending forward in an arc, two plate-shaped shielding portions 264 extending forward from the left and right sides of the second plate-shaped connecting portion 261 respectively, and two plate-shaped tail portions 265 extending downward from the bottom end of the plate-shaped shielding portions 264 and partially covered by the insulating base 21.

[0034] The second plate-shaped connecting portion 261, the second plate body portion 262, and the plate-shaped elastic contact end 263 respectively have a width W3, a width W4, and a width W5 along the third direction D3.

[0035] The width W3 of the second plate-shaped connecting portion 261 is smaller than the width W4 of the second plate body portion 262. The width W4 of the second plate body portion 262 is larger than the width W5 of the plate-shaped elastic contact end 263, and larger than the width W1 of the first plate body portion 272.

[0036] The second plate portion 262 includes a transverse segment 2621 extending downward from the plate-shaped elastic contact end 263, and two side segments 2622 extending downward from the left and right sides of the transverse segment and connecting to the second plate-shaped connecting portion 261. The width of the side segments 2622 along the third direction D3 gradually increases from top to bottom. The transverse segment 2621 and the side segments 2622 cooperate to define an inverted cone-shaped opening 2623 that penetrates along the first direction D1.

[0037] The design of the side section 2622, which gradually increases in width from top to bottom, allows the side section 2622 to disperse some of the stress during deformation when the second plate body 262 is subjected to force by the plate-shaped elastic contact end 263, so as to avoid the surface stress from concentrating at the bottom end of the second plate body 262 and deforming.

[0038] In this embodiment, the opening 2623 is inverted cone shape. However, in practice, as long as the width of the side segment 2622 gradually increases from top to bottom, the opening 2623 can also be designed as a rectangle, and the side of the side segment 2622 facing the plate-shaped signal terminal 27 extends downward and obliquely toward the plate-shaped signal terminal 27.

[0039] It should be noted that the distance between the second plate-shaped connecting portion 261 and the first plate-shaped connecting portion 271 of the adjacent plate-shaped signal terminal 27 is greater than the distance between the second plate body portion 262 and the first plate body portion 272 of the adjacent plate-shaped signal terminal 27, and the distance between the second plate-shaped connecting portion 261 and the first plate-shaped connecting portion 271 of the adjacent plate-shaped signal terminal 27 is greater than the distance between the first plate-shaped connecting portions 271 of the plate-shaped signal terminal pair 25.

[0040] The plate-shaped tail portion 265 is fixed to and electrically connected to the circuit board 9, and laterally shields the tail end 274 of the adjacent plate-shaped signal terminal 27. Specifically, the length L1 of the plate-shaped tail portion 265 along the first direction D1 is greater than or equal to the length L2 of the tail end 274 along the first direction D1, and the height H1 of the plate-shaped tail portion 265 along the second direction D2 is greater than or equal to the height H2 of the tail end 274 along the second direction D2. It is worth mentioning that the two plate-shaped tail portions 265 can be soldered together onto a single pad (not shown) on the circuit board 9, or they can be soldered separately onto different pads.

[0041] Referring to Figures 6, 9, and 10, the plate-shaped grounding shield 23 extends along the third direction D3 and is connected and fixed to the front edge of the plate-shaped shielding portions 264 of the plate-shaped grounding terminal 26, and has several first through holes 230 that penetrate along the first direction D1 and respectively correspond to the plate-shaped signal terminals 27.

[0042] The wavy grounding shield 24 extends along the third direction D3 and is fixedly connected to the rear side of the plate-shaped grounding terminal 26. The wavy grounding shield 24 has several connecting portions 241 respectively connected to the plate-shaped grounding terminals 26, and several wavy portions 242 respectively connected between every two connecting portions 241. The connecting portions 241 are fixedly connected to the second plate-shaped connecting portion 261, a portion of the plate-shaped shielding portions 264, and a portion of the plate-shaped tail portions 265 of the corresponding plate-shaped grounding terminal 26. The wavy grounding shield 24 also has several second through holes 240 extending along the first direction D1 and positioned corresponding to the plate-shaped grounding terminals 26.

[0043] It should be noted that, in this embodiment, the first through holes 230 and the second through holes 240 are respectively used to reduce the stress of the plate-shaped grounding shield 23 and the corrugated grounding shield 24 as a whole. However, in other embodiments of the present invention, the plate-shaped grounding shield 23 does not necessarily have the first through holes 230, and the corrugated grounding shield 24 does not necessarily have the second through holes 240.

[0044] Referring to Figures 3, 11, and 12, the wire connector 102 includes an insulating housing 3, several first cables 4, several second cables 5, a first terminal sheet 6, a second terminal sheet 7, a locking element 81, and a pull strap 82. The first terminal sheet 6 and the second terminal sheet 7 are disposed within the insulating housing 3.

[0045] The insulating housing 3 is manufactured by a one-piece molding process. The insulating housing 3 has a main body 31, a supporting part 32, and several protruding post parts 33 extending upward from the main body 31. The main body 31 is rectangular and stacked downward on the insulating body 12 of the board end connector 101, and has a forward-facing retaining groove 34 for accommodating the locking member 81. The supporting part 32 extends rearward from the main body 31 and supports the first terminal sheet 6.

[0046] Referring to Figure 14, the first cable 4 includes two first signal conductors 41 spaced apart from each other, and two first ground conductors 42 located on opposite sides of the two first signal conductors 41. The first cable 4 extends horizontally and has a first connecting section 43 and a first extension section 44 extending rearward from the first connecting section 43. The first signal conductors 41 and the first ground conductors 42 of the first connecting section 43 are exposed.

[0047] Referring to Figure 16, the second cable 5 includes two second signal conductors 51 spaced apart from each other, and two second ground conductors 52 located on opposite sides of the two second signal conductors 51. The second cable 5 has an inclined second connecting section 53 and a second extension section 54 extending horizontally rearward from the second connecting section 53. The second signal conductors 51 and the second ground conductors 52 of the second connecting section 53 are exposed.

[0048] Referring to Figures 13 to 15, the first terminal sheet 6 includes a plurality of first signal terminal pairs 61 and a plurality of first ground terminals 62 arranged at intervals along the third direction D3, a first ground connection piece 63, a first ground shield 64, a second ground shield 65, and a first covering component 66.

[0049] The first signal terminal pair 61 is provided with a first ground terminal 62 on each side. The first ground terminal 62 is provided with a first signal terminal pair 61 on each side. Specifically, the arrangement of the first ground terminals 62 and the first signal terminal pairs 61 is in the order of first ground terminal 62, first signal terminal pair 61, first ground terminal 62, first signal terminal pair 61 along the third direction D3.

[0050] The first signal terminal pair 61 has two left-right symmetrical first signal terminals 67. Each first signal terminal 67 has a first body portion 671 extending along the second direction D2, a first tail portion 672 extending rearward from the top of the first body portion 671, and a first contact portion 673 extending downward and forward in an arc from the end of the first body portion 671. The first tail portion 672 forms a 90-degree angle with the first body portion 671 (see Figure 2).

[0051] The first grounding terminal 62 has a second body portion 621 extending along the second direction D2, a second tail portion 622 extending rearward from the top of the second body portion 621, and a second contact portion 623 extending downward and forward in an arc from the end of the second body portion 621. The second tail portion 622 is at an angle of 90 degrees to the second body portion 621.

[0052] The first grounding connection piece 63 is integrally formed with the first grounding terminals 62 and is connected to the second contact portions 623 extending along the third direction D3.

[0053] The first grounding shield 64 is connected and fixed to the front side of the second body portion 621 to electrically connect to the first grounding terminals 62. It should be noted that in other embodiments of the present invention, the first grounding shield 64 may also be connected and fixed to the rear side of the second body portion 621. The second grounding shield 65 is connected and fixed to the bottom side of the second tail portion 622 to electrically connect to the first grounding terminals 62.

[0054] Next, the electrical connection relationships of the first cables 4, the first signal terminal pairs 61, and the first grounding terminals 62 will be described. The first cables 4 are electrically connected to the first signal terminal pairs 61 respectively. The first connecting segment 43 is connected and fixed to the top side of the first tail portion 672 of the corresponding first signal terminal pair 61 via the exposed portions of the two first signal conductors 41, thereby electrically connecting the first signal terminal pair 61. The first connecting segment 43 is also connected and fixed to the top side of the second tail portion 622 of the two first grounding terminals 62 on both sides of the corresponding first signal terminal pair 61 via the exposed portions of the two first grounding conductors 42, thereby electrically connecting the first grounding terminals 62.

[0055] Referring to Figures 2 and 13, the first covering assembly 66 includes a first support member 661, a first covering member 662, and a second covering member 663. The first support member 661 covers a portion of the first body portions 671, a portion of the second body portions 621, and the first grounding shield 64. The first covering member 662 is connected to the first support member 661 and covers the first tail portions 672, the second tail portions 622, the first connecting segments 43 of the first cables 4, and the second grounding shield 65. The second covering member 663 is connected to the first covering member 662 and covers a portion of the first extension segments 44 of the first cables 4.

[0056] Referring to Figures 13, 16, and 17, the second terminal sheet 7 includes a plurality of second signal terminal pairs 71 and a plurality of second ground terminals 72 arranged at intervals along the third direction D3, a second ground connection piece 73, a third ground shield 74, a fourth ground shield 75, and a second covering component 76.

[0057] The second signal terminal pair 71 is provided with a second ground terminal 72 on each side. The second ground terminal 72 is provided with a second signal terminal pair 71 on each side. Specifically, the second ground terminals 72 and the second signal terminal pairs 71 are arranged sequentially along the third direction D3 in the manner of second ground terminal 72, second signal terminal pair 71, second ground terminal 72, second signal terminal pair 71.

[0058] The second signal terminal pair 71 has two bilaterally symmetrical second signal terminals 77. Each second signal terminal 77 has a third body portion 771 extending along the second direction D2, a third tail portion 772 extending upward and backward obliquely from the third body portion 771, and a third contact portion 773 extending downward and backward in an arc from the third body portion 771. The angle between the third tail portion 772 and the third body portion 771 is an obtuse angle (see Figure 2), preferably approximately 145 degrees.

[0059] The second grounding terminal 72 has a fourth body portion 721 extending along the second direction D2, a fourth tail portion 722 extending upward and backward from the fourth body portion 721, and a fourth contact portion 723 extending downward and backward in an arc from the fourth body portion 721. The angle between the fourth tail portion 722 and the fourth body portion 721 is an obtuse angle, preferably about 145 degrees.

[0060] The second grounding connection piece 73 is integrally formed with the second grounding terminals 72 and is connected to the fourth contact portion 723 extending along the third direction D3.

[0061] The third grounding shield 74 is connected and fixed to the rear side of the fourth body portion 721 to electrically connect to the second grounding terminals 72. It should be noted that in other embodiments of the present invention, the third grounding shield 74 may also be connected and fixed to the front side of the fourth body portion 721. The fourth grounding shield 75 is connected and fixed to the rear side of the fourth tail portion 722 to electrically connect to the second grounding terminals 72.

[0062] Next, the electrical connection relationships of the second cables 5, the second signal terminal pairs 71, and the second grounding terminals 72 will be described. The second cables 5 are electrically connected to the second signal terminal pairs 71 respectively. The second connecting segment 53 is connected and fixed to the front side of the third tail 772 of the corresponding second signal terminal pair 71 via the exposed portions of the two second signal conductors 51, thereby electrically connecting the second signal terminal pair 71. The second connecting segment 53 is also connected and fixed to the front side of the fourth tail 722 of the two second grounding terminals 72 on both sides of the corresponding second signal terminal pair 71 via the exposed portions of the two second grounding conductors 52, thereby electrically connecting the second grounding terminals 72.

[0063] Referring to Figures 2 and 13, the second covering assembly 76 includes a second support member 761, a third covering member 762, and a fourth covering member 763. The second support member 761 covers a portion of the third body portion 771, a portion of the fourth body portion 721, and the third grounding shield 74. The third covering member 762 is connected to the second support member 761 and covers the third tail portion 772, the fourth tail portion 722, the second connecting segments 53 of the second cables 5, and the fourth grounding shield 75. The fourth covering member 763 is connected to the third covering member 762 and covers a portion of the second extension segments 54 of the second cables 5. The fourth covering member 763 is located above the main body portion 31 of the insulating housing 3 and has several through holes for assembly with the protruding portions 33 followed by heat fusion bonding to form a cover on the insulating housing 3.

[0064] Referring to Figure 16, it should be noted that both the third grounding shield 74 and the fourth grounding shield 75 have a wavy shape, which enables them to connect to the second grounding terminals 72 but not to the second signal terminals 77. Furthermore, each of the third and fourth grounding shields 74 and 75 has several through holes, which reduces the overall stress on the third and fourth grounding shields 74 and 75. Since the first grounding shield 64 and the third grounding shield 74 have the same appearance, and the second grounding shield 65 and the fourth grounding shield 75 have the same appearance, the purpose of their design structure is the same as described above, and therefore will not be repeated here.

[0065] Referring to Figures 2 and 11, the locking element 81 is disposed in the retaining groove 34 of the insulating housing 3, and the pull strap 82 is threaded through it. The pull strap 82 allows the user to operate to detach the wire-end connector 102 from the board-end connector 101. Since the structure of the locking element 81 and the pull strap 82 is not the focus of this invention, it will not be described in detail.

[0066] Referring to Figures 1 to 5 and Figure 13, when the wire connector 102 is inserted into the board connector 101, the two terminal modules 2 of the board connector 101 are electrically connected to the first terminal sheet 6 and the second terminal sheet 7 of the wire connector 102, respectively.

[0067] In summary, the fact that the width W4 of the second plate portion 262 of the plate-shaped grounding terminal 26 is greater than the width W1 of the first plate portion 272 of the plate-shaped signal terminal 27 helps to isolate crosstalk between adjacent plate-shaped signal terminal pairs 25. Furthermore, the design of the width of the side section 2622 of the second plate portion 262 gradually increasing from top to bottom helps to optimize stress balance.

[0068] The two plate-shaped shielding portions 264 of the plate-shaped grounding terminal 26 are used to form a shield between two adjacent plate-shaped signal terminal pairs 25 and provide good lateral isolation for crosstalk between two adjacent plate-shaped signal terminal pairs 25. Furthermore, the greater the distance between the two plate-shaped shielding portions 264, the better the isolation effect.

[0069] The length L1 and height H1 of the plate-shaped tail 265 of the plate-shaped grounding terminal 26 are greater than or equal to the length L2 and height H2 of the tail 274 of the plate-shaped signal terminal 27, respectively. This can laterally shield the tail 274 of the plate-shaped signal terminal 27, which helps to reduce crosstalk and improve the overall electrical performance of the present invention.

[0070] The plate-shaped grounding shield 23 and the corrugated grounding shield 24 are covered by the insulating base 21 and electrically connected to the plate-shaped grounding terminals 26, and are respectively located on two opposite sides of the plate-shaped grounding terminals 26, thereby increasing shielding for crosstalk between adjacent plate-shaped signal terminal pairs 25.

[0071] Furthermore, by ensuring that the first straight portion 2752 of the first plate portion 272 is parallel to the first straight portion 2752 of another first plate portion 272, the third straight portion 2771 of the first plate-shaped connecting portion 271 is parallel to the third straight portion 2771 of another first plate-shaped connecting portion 271, and the distance between the second plate-shaped connecting portion 261 and the adjacent first plate-shaped connecting portion 271 is greater than the distance between the second plate portion 262 and the adjacent first plate portion 272, when the terminal array 22 covered by the insulating base 21 is covered, it helps to maintain the signal integrity (SI) of the signal transmission in the plate-shaped signal terminal pair 25.

[0072] Furthermore, the design of the first inclined portion 2751 and the second inclined portion 2761 of the plate-shaped signal terminal 27 ensures that the stress distribution is uniform during the deflection of the plate-shaped signal terminal 27.

[0073] On the other hand, by making the angle between the third tail 772 of the second signal terminal 77 and the third body 771 obtuse, and the angle between the fourth tail 722 of the second ground terminal 72 and the fourth body 721 obtuse, the second cable 5 has an inclined second connecting section 53, which not only reduces the height of the wire end connector 102, but also minimizes the stress on the second cable 5 by having a gentler bending radius.

[0074] In addition, the fourth covering 763 of the second terminal sheet 7 forms a cover over the insulating housing 3, eliminating the additional components and wall thickness required for a separate cover, thereby further reducing the height of the wire connector 102.

[0075] However, the above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the patent specification of the present invention shall still fall within the scope of the patent of the present invention.

[0076] 100: Electrical connection device 101: Board-end connector 102: Wire connector 11: Metal casing 111: First foot 12: Insulating body 120: Storage space 121: Second foot 2: Terminal module 21: Insulating base 211: Seat body part 212: Protruding part 213: Card slot 22: Terminal Array 23: Plate-shaped grounding shield 230: First through hole 24: Wavy grounding shield 240: Second through hole 241: Connecting part 242: Wave section 25: Plate-shaped signal terminal pair 26: Plate-shaped grounding terminal 261: Second plate-shaped connecting part 262: Second plate body 2621:Horizontal segment 2622: Lateral segment 2623: Opening 263: Plate-shaped elastic contact end 264: Plate-shaped shielding section 265: Plate-shaped tail 27: Plate-shaped signal terminal 271: First plate-shaped connecting part 272: First plate body 273: Elastic contact end 274: Tail end 275: First Page 2751: First oblique surface 2752: First Straight Face 276: Second page 2761: Second oblique face 2762: Second straight face 277: Third Page 2771: Third straight face 3: Insulating housing 31: Main body 32: Supporting part 33: Protruding column 34: Holding groove 4: First cable 41: First signal conductor 42: First grounding conductor 43: First connecting segment 44: First extension 5: Second cable 51: Second signal conductor 52: Second grounding conductor 53: Second connecting segment 54: Second extension 6: First terminal sheet body 61: First signal terminal pair 62: First grounding terminal 621: Second Body Section 622: Second tail section 623: Second Contact Section 63: First grounding connection piece 64: First grounding shield 65: Second grounding shield 66: First Encapsulation Component 661: First support component 662: First Covering Component 663: Second Covering 67: First signal terminal 671:First Ontology Department 672: First Tail 673: First Contact Section 7: Second terminal sheet body 71: Second signal terminal pair 72: Second grounding terminal 721: Fourth Body Section 722: Fourth Tail 723: Fourth Contact Section 73: Second grounding connection piece 74: Third grounding shield 75: Fourth grounding shield 76: Second Encapsulation Component 761: Second support component 762: Third Covering 763: Fourth Covering 77: Second signal terminal 771: Third Body Section 772: Third Tail 773: Third Contact Section 81: Locking fasteners 82: Pull strap 9: Circuit board D1: First Direction D2: Second Direction D3: Third direction H1: Height H2: Height L1: Length L2: Length W1: Width W2: Width W3: Width W4: Width W5: Width

Claims

1. A wire-end connector, comprising: an insulating housing; a first terminal sheet disposed in the insulating housing, including a plurality of first signal terminal pairs, a plurality of first ground terminals, a first ground shield, a second ground shield, and a first covering assembly, wherein each of the first signal terminal pairs has a first ground terminal on both sides and has two first signal terminals, each first signal terminal having a first body portion, a first tail portion and a first contact portion extending outward from both ends of the first body portion, each first ground terminal having a second body portion, a second tail portion and a second contact portion extending outward from both ends of the second body portion, the first ground shield being electrically connected to the second body portions, and the second ground shield being electrically connected to the second tail portions; A second terminal sheet is disposed in the insulating housing and includes several second signal terminal pairs, several second ground terminals, a third ground shield, a fourth ground shield, and a second covering assembly. Each of the second signal terminal pairs has a second ground terminal on both sides and two second signal terminals. Each second signal terminal has a third body portion, a third tail portion extending outward from both ends of the third body portion, and a third contact portion. Each second ground terminal has a fourth body portion, a fourth tail portion extending outward from both ends of the fourth body portion, and a fourth contact portion. The third ground shield is electrically connected to the fourth body portions and the fourth ground shield is electrically connected to the fourth tail portions. Several first cables are electrically connected to the first tail portions and the second tail portions; and several second cables are electrically connected to the third tail portions and the fourth tail portions.

2. The wire connector as described in claim 1, wherein, The angle between the first body portion and the first tail portion is 90 degrees, and the angle between the second body portion and the second tail portion is 90 degrees.

3. The wire connector as described in claim 2, wherein, The first cables are respectively connected to the first signal terminal pairs. The first cable has a horizontally extending first connecting segment that is electrically connected to the first tail of the corresponding first signal terminal pair and the second tail of the two first ground terminals located on both sides of the corresponding first signal terminal pair.

4. The wire connector as described in claim 1, wherein, The first covering component includes a first support member that at least partially covers the first body portions and the second body portions.

5. The wire connector as described in claim 4, wherein, The first support also covers the first grounding shield.

6. The wire connector as described in claim 4, wherein, The first cables are respectively connected to the first signal terminal pairs. The first cable has a first connecting segment, which is connected to the first tail of the corresponding first signal terminal pair and the second tail of the two first ground terminals located on both sides of the corresponding first signal terminal pair. The first covering assembly also includes a first covering member, which covers the first tail, the second tail and the first connecting segment.

7. The wire connector as described in claim 6, wherein, The first covering also covers the second grounding shield.

8. The wire connector as described in claim 6, wherein, The first cable also has a first extension connected to the first connection segment, and the first covering assembly further includes a second covering that covers the first covering and the first extension.

9. The wire connector as claimed in claim 1, wherein, The second grounding shield is electrically connected to the side of the second tail portion opposite to the first cables, and the first grounding shield is electrically connected to the side of the second body portion identical to the first cables.

10. The wire connector as claimed in claim 1, wherein, The angle between the third body portion and the third tail portion is an obtuse angle, and the angle between the fourth body portion and the fourth tail portion is an obtuse angle.

11. The wire connector as claimed in claim 10, wherein, The second cables are respectively connected to the second signal terminal pairs. The second cable has a second connecting segment that extends at an angle and is electrically connected to the third tail of the corresponding second signal terminal pair and the fourth tail of the two second ground terminals located on both sides of the corresponding second signal terminal pair.

12. The wire connector as claimed in claim 1, wherein, The second covering component includes a second support member that at least partially covers the third body portion and the fourth body portion.

13. The wire connector as claimed in claim 12, wherein, The second support also covers the third grounding shield.

14. The wire connector as claimed in claim 12, wherein, The second cables are respectively connected to the second signal terminal pairs. The second cable has a second connecting segment that connects to the third tail of the corresponding second signal terminal pair and the fourth tail of the two second ground terminals located on both sides of the corresponding second signal terminal pair. The second covering assembly also includes a third covering that covers the third tail, the fourth tail and the second connecting segment.

15. The wire connector as claimed in claim 14, wherein, The third covering also covers the fourth grounding shield.

16. The wire connector as claimed in claim 14, wherein, The second cable also has a second extension connected to the second connection segment, and the second sheathing assembly further includes a fourth sheathing member that covers the third sheathing member and the second extension segment.

17. The wire connector as claimed in claim 16, wherein, The fourth covering is fixed to the insulating shell.

18. The wire connector as claimed in claim 1, wherein, The fourth grounding shield is electrically connected to the side of the fourth tail portion opposite to the second cables, and the third grounding shield is electrically connected to the side of the fourth body portion identical to the fourth grounding shield.

19. The wire connector as claimed in claim 1, wherein, The first terminal sheet also includes a first grounding connection piece connecting the second contacts, and the second terminal sheet also includes a second grounding connection piece connecting the fourth contacts.

20. A board-end connector, comprising: a metal housing; an insulating body disposed within the metal housing; and two terminal modules housed in the insulating body, each terminal module including an insulating base disposed in the insulating body, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has a plurality of plate-shaped signal terminal pairs and a plurality of plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on each side and two spaced plate-shaped signal terminals. Each plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate body portion extending outward from both ends of the first plate-shaped connecting portion, and a tail end, and an elastic contact end extending outward from the first plate body portion. The width of the first plate body portion is greater than the width of the elastic contact end. The two first plate bodies of the plate-shaped signal terminal pair... The plate-shaped grounding terminal has a predetermined distance between its body parts. It has a second plate-shaped connecting part that is at least partially covered by the insulating base, a second plate body part that extends outward from the second plate-shaped connecting part, a plate-shaped elastic contact end that extends outward from the second plate body part, two plate-shaped shielding parts that extend from both sides of the second plate-shaped connecting part along the extension direction of the tail end, and two plate-shaped tails that extend downward from the extension ends of the plate-shaped shielding parts. The width of the second plate body part is greater than the width of the plate-shaped elastic contact end and greater than the width of the first plate body part. The extension length of the plate-shaped tails in the same direction as the extension direction of the tail end is greater than or equal to the tail end. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminal, and are respectively located on two opposite sides of the plate-shaped grounding terminal.

21. The board-end connector as claimed in claim 20, wherein, The insulating base also covers part of the plate-shaped tail portion.

22. A board-end connector, comprising: a metal housing; an insulating body disposed within the metal housing; and two terminal modules housed in the insulating body, each terminal module including an insulating base disposed in the insulating body, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has a plurality of plate-shaped signal terminal pairs and a plurality of plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on each side and two spaced-apart plate-shaped signal terminals. Each plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate-shaped body portion extending outward from both ends of the first plate-shaped connecting portion, and a tail end, and an elastic extension portion extending outward from the first plate-shaped body portion. At the contact end, the first plate portion has a first surface facing the other first plate portion and a second surface opposite to the first surface. The first surface has a first inclined portion extending downward from the elastic contact end and inclined toward the other first plate portion, and a first straight portion connecting the first inclined portion and the first plate-shaped connecting portion. The first straight portion is parallel to the first straight portion of the other first plate portion. The second surface has a second inclined portion extending upward from the first plate-shaped connecting portion and inclined toward the other first plate portion. The first plate-shaped connecting portion has a third surface facing the other first plate-shaped connecting portion and having a third straight portion. The third straight portion is parallel to the first plate-shaped connecting portion of the other first plate portion. The third straight section of the connection is parallel. The plate-shaped grounding terminal has a second plate-shaped connection portion at least partially covered by the insulating base, a second plate body portion extending outward from the second plate-shaped connection portion, a plate-shaped elastic contact end extending outward from the second plate body portion, two plate-shaped shielding portions extending from both sides of the second plate-shaped connection portion along the extending direction of the tail end, and two plate-shaped tail portions extending downward from the extending ends of the plate-shaped shielding portions. The width of the second plate body portion is greater than the width of the plate-shaped elastic contact end and greater than the width of the first plate body portion. The second plate body portion has an opening and includes two side sections defining both sides of the opening. The width of the side sections gradually increases from top to bottom. The extension length of the plate-shaped tail portion in the same direction as the tail end is greater than or equal to the tail end. The distance between the second plate-shaped connecting portion of the plate-shaped grounding terminal and the first plate-shaped connecting portion of the adjacent plate-shaped signal terminal is greater than the distance between the second plate body portion of the plate-shaped grounding terminal and the first plate body portion of the adjacent plate-shaped signal terminal. The distance between the second plate-shaped connecting portion of the plate-shaped grounding terminal and the first plate-shaped connecting portion of the adjacent plate-shaped signal terminal is greater than the distance between the first plate-shaped connecting portions of the plate-shaped signal terminal pair. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminals, and are respectively located on two opposite sides of the plate-shaped grounding terminals.

23. The board-end connector as claimed in claim 22, wherein, The opening is inverted cone shape.

24. The board-end connector as claimed in claim 22, wherein, The insulating base also covers part of the plate-shaped tail portion.

25. An electrical connection device comprising: a wire-end connector including an insulating housing; a first terminal sheet disposed in the insulating housing and including a plurality of first signal terminal pairs, a plurality of first ground terminals, a first ground shield, a second ground shield, and a first enclosure assembly, wherein each of the first signal terminal pairs has a first ground terminal on both sides and has two first signal terminals, each first signal terminal having a first body portion, a first tail portion and a first contact portion extending outward from both ends of the first body portion, each first ground terminal having a second body portion, a second tail portion and a second contact portion extending outward from both ends of the second body portion, the first ground shield being electrically connected to the second body portions, and the second ground shield being electrically connected to the second tail portions; A second terminal sheet is disposed in the insulating housing and includes several second signal terminal pairs, several second ground terminals, a third ground shield, a fourth ground shield, and a second enclosure assembly. Each of the second signal terminal pairs has a second ground terminal on both sides and two second signal terminals. Each second signal terminal has a third body portion, a third tail portion extending outward from both ends of the third body portion, and a third contact portion. Each second ground terminal has a fourth body portion, a fourth tail portion extending outward from both ends of the fourth body portion, and a fourth contact portion. The third ground shield is electrically connected to the fourth body portions and the fourth ground shield is electrically connected to the fourth tail portions. Several first cables are electrically connected to the first tail portions and the second tail portions; and several second cables are electrically connected to the third tail portions and the fourth tail portions. A board-end connector includes a metal housing. An insulating body is disposed within the metal housing.The device includes two terminal modules housed within the insulating body, electrically connecting the first terminal sheet and the second terminal sheet of the wire connector, respectively. Each terminal module comprises an insulating base disposed within the insulating body, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield. The terminal array has several plate-shaped signal terminal pairs and several plate-shaped grounding terminals. Each plate-shaped signal terminal pair has a plate-shaped grounding terminal on each side and two spaced plate-shaped signal terminals. Each plate-shaped signal terminal has a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate body portion extending outward from both ends of the first plate-shaped connecting portion, a tail end, and an elastic contact end extending outward from the first plate body portion. The width of the first plate body portion is greater than the width of the elastic contact end. The plate-shaped signal terminal pair... The two first plate portions are separated by a predetermined distance. The plate-shaped grounding terminal has a second plate-shaped connecting portion at least partially covered by the insulating base, a second plate portion extending outward from the second plate-shaped connecting portion, a plate-shaped elastic contact end extending outward from the second plate portion, two plate-shaped shielding portions extending from both sides of the second plate-shaped connecting portion along the extending direction of the tail end, and two plate-shaped tail portions extending downward from the extending ends of the plate-shaped shielding portions. The width of the second plate portion is greater than the width of the plate-shaped elastic contact end and greater than the width of the first plate portion. The extending length of the plate-shaped tail portion in the same direction as the extending direction of the tail end is greater than or equal to the extending length of the tail end. The plate-shaped grounding shield and the corrugated grounding shield are covered by the insulating base and electrically connected to the plate-shaped grounding terminal, and are respectively located on two opposite sides of the plate-shaped grounding terminal.

26. The electrical connection device as claimed in claim 25, wherein, The angle between the first body portion and the first tail portion is 90 degrees, and the angle between the second body portion and the second tail portion is 90 degrees.

27. The electrical connection device as claimed in claim 26, wherein, The first cables are respectively connected to the first signal terminal pairs. The first cable has a horizontally extending first connecting segment that is electrically connected to the first tail of the corresponding first signal terminal pair and the second tail of the two first ground terminals located on both sides of the corresponding first signal terminal pair.

28. The electrical connection device as claimed in claim 25, wherein, The first covering component includes a first support member that at least partially covers the first body portions and the second body portions.

29. The electrical connection device as claimed in claim 28, wherein, The first support also covers the first grounding shield.

30. The electrical connection device as claimed in claim 28, wherein, The first cables are respectively connected to the first signal terminal pairs. The first cable has a first connecting segment, which is connected to the first tail of the corresponding first signal terminal pair and the second tail of the two first ground terminals located on both sides of the corresponding first signal terminal pair. The first covering assembly also includes a first covering member, which covers the first tail, the second tail and the first connecting segment.

31. The electrical connection device as claimed in claim 30, wherein, The first covering also covers the second grounding shield.

32. The electrical connection device as claimed in claim 30, wherein, The first cable also has a first extension connected to the first connection segment, and the first covering assembly further includes a second covering that covers the first covering and the first extension.

33. The electrical connection device as claimed in claim 25, wherein, The second grounding shield is electrically connected to the side of the second tail portion opposite to the first cables, and the first grounding shield is electrically connected to the side of the second body portion identical to the first cables.

34. The electrical connection device as claimed in claim 25, wherein, The angle between the third body portion and the third tail portion is an obtuse angle, and the angle between the fourth body portion and the fourth tail portion is an obtuse angle.

35. The electrical connection device as claimed in claim 34, wherein, The second cables are respectively connected to the second signal terminal pairs. The second cable has a second connecting segment that extends at an angle and is electrically connected to the third tail of the corresponding second signal terminal pair and the fourth tail of the two second ground terminals located on both sides of the corresponding second signal terminal pair.

36. The electrical connection device as claimed in claim 25, wherein, The second covering component includes a second support member that at least partially covers the third body portion and the fourth body portion.

37. The electrical connection device as claimed in claim 36, wherein, The second support also covers the third grounding shield.

38. The electrical connection device as claimed in claim 36, wherein, The second cables are respectively connected to the second signal terminal pairs. The second cable has a second connecting segment that connects to the third tail of the corresponding second signal terminal pair and the fourth tail of the two second ground terminals located on both sides of the corresponding second signal terminal pair. The second covering assembly also includes a third covering that covers the third tail, the fourth tail and the second connecting segment.

39. The electrical connection device as claimed in claim 38, wherein, The third covering also covers the fourth grounding shield.

40. The electrical connection device as claimed in claim 38, wherein, The second cable also has a second extension connected to the second connection segment, and the first covering assembly further includes a fourth covering that covers the third covering and the second extension.

41. The electrical connection device as claimed in claim 40, wherein, The fourth covering is fixed to the insulating shell.

42. The electrical connection device as claimed in claim 25, wherein, The fourth grounding shield is electrically connected to the side of the fourth tail portion opposite to the second cables, and the third grounding shield is electrically connected to the side of the fourth body portion identical to the fourth grounding shield.

43. The electrical connection device as claimed in claim 25, wherein, The first terminal sheet also includes a first grounding connection piece connecting the second contacts, and the second terminal sheet also includes a second grounding connection piece connecting the fourth contacts.

44. The electrical connection device as claimed in claim 25, wherein, The insulating base also covers part of the plate-shaped tail portion.

45. A terminal module comprising an insulating base, a terminal array, a plate-shaped grounding shield, and a corrugated grounding shield, the terminal array having a plurality of plate-shaped signal terminal pairs and a plurality of plate-shaped grounding terminals, each plate-shaped signal terminal pair having a plate-shaped grounding terminal on each side and having two spaced-apart plate-shaped signal terminals, each plate-shaped signal terminal having a first plate-shaped connecting portion at least partially covered by the insulating base, a first plate body portion extending outward from both ends of the first plate-shaped connecting portion and a tail end, and an elastic contact end extending outward from the first plate body portion. The plate-shaped grounding terminal has a second plate-shaped connecting portion at least partially covered by the insulating base, a second plate body portion extending outward from the second plate-shaped connecting portion, a plate-shaped elastic contact end extending outward from the second plate body portion, two plate-shaped shielding portions extending from both sides of the second plate-shaped connecting portion along the extension direction of the tail end, and two plate-shaped tail portions extending downward from the extension ends of the plate-shaped shielding portions. The plate-shaped grounding shielding member and the corrugated grounding shielding member are covered by the insulating base and electrically connected to the plate-shaped grounding terminal, and are respectively located on two opposite sides of the plate-shaped grounding terminal.

46. ​​The terminal module as described in claim 45, wherein, The width of the first plate portion is greater than the width of the elastic contact end, and the plate-shaped signal terminal is spaced a predetermined distance apart from the two first plate portions. The width of the second plate portion is greater than the width of the plate-shaped elastic contact end and also greater than the width of the first plate portion.

47. The terminal module as described in claim 45, wherein, The extension length of the plate-shaped tail section in the same direction as the tail end is greater than or equal to that of the tail end.

48. The terminal module as described in claim 45, wherein, The height of the plate-shaped tail section along a vertical direction is greater than or equal to the height of the tail end along the same vertical direction.

49. The terminal module as described in claim 45, wherein, The first plate portion has a first surface facing the other first plate portion and a second surface opposite to the first surface. The first surface has a first inclined surface extending downward from the elastic contact end and inclined toward the other first plate portion, and a first straight surface connecting the first inclined surface and the first plate-shaped connecting portion. The first straight surface is parallel to the first straight surface of the other first plate portion. The second surface has a second inclined surface extending upward from the first plate-shaped connecting portion and inclined toward the other first plate portion.

50. The terminal module as claimed in claim 45, wherein, The plate-shaped grounding shield is connected to the plate-shaped shielding portion of the plate-shaped grounding terminal, and the wavy grounding shield is connected to the second plate-shaped connecting portion of the plate-shaped grounding terminal.

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