TW202017259A - Electrical connector assembly - Google Patents

Abstract

An electrical connector assembly including a first circuit board, a first connector and a number of cables held on the circuit board, and a metal shell held outside the first circuit board. The first connector includes an insulative housing and a number of first terminals and a shielding shell. The insulating housing includes a base and an annular abutting wall having an abutting groove protruding upwardly from the bas. The first terminals includes two signal terminals at least and a grounding terminal between the two signal terminals. The first circuit board electrically connects the first terminals and the cables. The metal shell encloses the first circuit board and the first connector and has an opening for the first connector protruding outwardly. The cables and the first terminals are connected Indirectly with each other.

Description

Electrical connector assembly

The invention relates to an electrical connector assembly, in particular to an electrical connector assembly capable of transmitting multiple sets of signals.

In the prior art, the coaxial connector usually has one terminal group, which can only transmit a single signal, and the application has limitations. Therefore, please refer to the invention patent application No. TW201405980A published in Taiwan, which discloses a coaxial connector relative to the usual coaxial connection The device has two pairs of terminal groups to meet the needs of multiple groups of signal transmission, but in the previous case, the two pairs of terminal groups are adjacent and there is no shielding structure between them. When transmitting high-frequency signals, signal interference is likely to occur between the two pairs of terminal groups It affects the stability of the signal and is not conducive to the transmission of high-frequency signals. The cable in the previous case is directly welded to the terminal. When the cable is pulled, the terminal is easily driven and the terminal is damaged.

Therefore, it is necessary to provide a new electrical connector assembly to overcome the above drawbacks.

In view of the foregoing, an object of the present invention is to provide an electrical connector assembly that can transmit multiple sets of signals, and has advantages of better signal shielding, anti-interference, and good structural strength.

The object of the present invention is achieved by the following technical solution: an electrical connector assembly including a first circuit board, a first connector and a plurality of cables held on the circuit board, and a cable held outside the first circuit board A metal housing, the first connector includes an insulating body, a plurality of first terminals held in the insulating body, and a shielding case held in the insulating body, the insulating body includes a base and upward from the base A protruding annular butting wall with a butting groove, the plurality of first terminals includes at least two signal terminals and a ground terminal between the two signal terminals, the first circuit board connects the plurality of first terminals It is electrically connected to a plurality of cables. The metal housing accommodates the first circuit board and the first connector and has an opening for the first connector to protrude outward.

Further, the metal housing of the electrical connector assembly of the present invention includes a first plate body portion and a second plate body portion opposite to the first plate body portion, the first plate body portion and the second plate An accommodating space for accommodating the first circuit board and the first connector is formed between the body portions, the opening is located in the first board body portion, and the first board body portion includes a A protruding plate portion protruding outwardly, and both sides of the protruding plate portion are provided with a side portion extending toward the second plate body portion and an extension portion laterally bent and extending from an end of the side portion, the extension portion and all The lateral edges of the opening are located in the same horizontal plane, the second plate body portion is formed by bending and extending from the front end of the first plate body portion, the second plate body portion includes a flat plate portion and is located on the flat plate A crimping portion that is bent and extended on both sides of the portion, and the crimping portion is clamped between the lateral edges of the opening and the extension portion.

Further, the front and back ends of the base of the insulating body of the electrical connector assembly of the present invention are provided with two through grooves penetrating up and down, and the plurality of first terminals of the first connector includes a holder held in the annular butting wall Fixing portion, a “U” shaped butting portion extending from one end of the fixing portion and exposed in the butting groove, and a welding portion extending from the other end of the fixing portion, two adjacent first terminals Symmetrically arranged in the front-rear direction, the welding portions of the plurality of first terminals are exposed in the two through slots, the shielding shell includes a cylindrical portion provided around the annular butting wall A first grounding portion formed by a laterally extending lower edge of the cylindrical portion, the cylindrical portion surrounding the two through-slots to accommodate the welding portion of the first terminal in the shielding case, the first The connector part is exposed outside the metal housing through the opening.

Further, the plurality of first terminals of the electrical connector assembly of the present invention includes at least a plurality of signal terminals and a plurality of ground terminals, two ground terminals are provided between two adjacent signal terminals, and the plurality of cables at least include A plurality of signal cables, the first circuit board has a first surface and a second surface opposite to the first surface, the first circuit board includes a plurality of signal cables and A plurality of first contacts electrically connected to the plurality of signal terminals of the first connector.

Further, the plurality of signal cables of the electrical connector assembly of the present invention all include a wire core at a central position, an inner insulating layer surrounding the wire core, a shielding layer surrounding the inner insulating layer, and the shielding layer An outer insulating layer, the wire core is electrically connected to the first contact point, a plurality of first clamping portions are formed on the rear edge of the protruding plate portion, and a plurality of first clamping portions are formed on the rear edge of the second plate body portion Two clamping parts, the plurality of first clamping parts and the plurality of second clamping parts are arranged side by side in the lateral direction, and the plurality of first clamping parts and the plurality of second clamping parts are corresponding to clamping The shielding layer and the outer insulating layer of the plurality of signal cables, the first clamping portion and the second clamping portion each have a clamping opening, and the clamping opening of the first clamping portion and the second clamping portion The direction of the clamping opening is opposite.

Further, the first circuit board of the electrical connector assembly of the present invention has a plurality of second contacts on the first surface and the second surface, the ground terminal, the first ground portion, and the lateral sides of the opening The edge and the extending portion are electrically connected to the plurality of second contacts on the first surface, the flat plate portion includes a convex portion protruding into the receiving space, the convex portion and the shielding case are grounded The part is electrically connected to a plurality of second contacts on the second surface.

Further, the plurality of cables and the first circuit board of the electrical connector assembly of the present invention are electrically connected to the rear end of the first circuit board, and the plurality of cables are electrically connected to the first circuit board The sexual connection is located between the protruding plate portion of the first plate body portion and the second plate body portion, the electrical connector assembly further includes an insulating member, the insulating member wraps the plurality of cables and all The electrical connection of the first circuit board.

Further, a docking connector assembly that docks with the electrical connector assembly of the present invention, the docking connector assembly includes a second circuit board and a second connector electrically connected to the second circuit board, the second The connector includes an insulator, a plurality of second terminals held on the insulator, and a metal housing held on the outside of the insulation body, the insulator is integrally injection molded with the plurality of second terminals and the metal housing, and the insulator It includes a base portion, a butt convex portion protruding upward from the base portion, and a ring-shaped outer wall provided on the peripheral side of the butt convex portion, and the ring-shaped butt wall is formed between the butt convex portion and the ring-shaped outer wall In the mated first space, the metal housing includes an annular wall portion held outside the annular butting wall, and a second ground portion formed laterally and extending at a lower edge of the annular wall portion.

Further, in the present invention, the second terminal of the butt connector assembly includes a “n”-shaped contact portion exposed on the butt convex portion and a solder leg formed by bending and extending from one end of the contact portion, Adjacent two second terminals are arranged in reverse symmetry in the front-rear direction, and the lateral ends of the other end of the contact respectively extend laterally to form hooks embedded in the insulator.

Further, in the present invention, a second space is formed between the annular butt wall of the butt connector assembly and the shielding housing. When the electrical connector assembly is docked with the butt connector assembly, the butt connector The butt convex portion of the assembly is inserted into the butt groove to electrically connect the first terminal and the second terminal, and the annular outer wall and the annular wall portion are fitted together in the second space , The outside surface of the annular wall portion and the inside surface of the cylindrical portion are mated to be electrically grounded together.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: Since the first connector of the electrical connector assembly and the cable are electrically connected by the first circuit board, the cable and The first terminals are not directly connected, so that the first terminals are protected from being damaged by being pulled by the cable; moreover, a ground terminal is provided between two adjacent signal terminals in the first terminals , Can effectively prevent the signal interference between the two signal terminals; moreover, because the first terminal is surrounded by the shielding shell, the connection between the first circuit board and the cable and the first circuit board are both The metal casing is wrapped so that each component of the electrical connector assembly that transmits signals is shielded and protected, which is beneficial to the stability of transmitting high-frequency signals.

Hereinafter, specific embodiments of the electrical connector assembly 100 and the mating connector assembly 400 of the present invention will be described with reference to the first to eleventh figures.

Please refer to the first picture to the eleventh picture, the direction definition of the present invention is based on the first picture, defining the mating direction of the first connector 11 and the second connector 13 as the up and down direction, perpendicular to the up and down direction In the horizontal direction and the front-rear direction perpendicular to the up-down direction and the horizontal direction, the cable 7 in the first figure is located at the rear end of the entire electrical connector assembly 10.

Referring to the first to tenth figures, the electrical connector assembly 100 includes a first circuit board 301, a first connector 11 electrically connected to the first circuit board 301, and a plurality of cables 7, holding The insulating member 6 on the first circuit board 301 and covering the front end of the plurality of cables 7 and the metal casing 5 sleeved outside the first circuit board 301.

Referring to the fourth to tenth figures, the first connector 11 includes an insulating body 2, ten first terminals 31 held in the insulating body 2, and a shielding held outside the insulating body 2壳4。 The shell 4.

Referring to the seventh figure, the insulating body 2 includes a base 21 and an annular butting wall 22 protruding upward from the base 21 and having a butt groove 221. Two through slots 211 penetrating up and down are provided at the front and rear ends of the base 21.

Please refer to the fourth, fifth, seventh to tenth figures, each of the first terminals 31 includes a fixing portion 312 held by the ring-shaped butting wall 22, extending from one end of the fixing portion 312 And exposed to the butt portion 311 of the butt groove 221 and the welding portion 314 of the base 21 extending from the other end of the fixing portion 312. The docking portion 311 has a "U" shape and is formed with two docking points (not labeled). The first terminals 31 are arranged laterally and two adjacent first terminals 31 are arranged symmetrically in the front-rear direction. The two sides of the fixing portion 312 have laterally protrudingly formed latching portions 313 for latching with the annular mating wall 22. In this embodiment, the ten first terminals 31 include four signal terminals S and six ground terminals G. The preferred arrangement of the ten first terminals 31 is that the outermost two sides are signal terminals S, and the other two signal terminals S are provided inside the two signal terminals S, and between two adjacent signal terminals S Two ground terminals G are provided, that is, for example, one signal terminal S, two ground terminals G, one signal terminal S, two ground terminals G, one signal terminal S, two ground terminals G, and one signal terminal S.

Please refer to the fourth to tenth figures, the shielding shell 4 is made of metal and is a frame. The shielding case 4 includes a cylindrical portion 41 and first grounding portions 42 formed on both sides of the lower edge of the cylindrical portion 41 and extending laterally.

The metal casing 5 includes a first plate body portion 51 and a second plate body portion 52 that is opposite to the first plate body portion 51 and located above the first plate body portion 51. The second plate body portion 52 is folded upward from the front end of the first plate body portion 51 to buckle with the first plate body portion 51. An accommodating space 500 for accommodating the first circuit board 301 and the first connector 11 is formed between the first board body portion 51 and the second board body portion 52. The first plate body portion 51 includes an opening 511 and a protruding plate portion 512 located behind the opening 511. The protruding plate portion 512 is formed to protrude outward from one end of the rear edge of the opening 511 in the front-rear direction. Both sides of the protruding plate portion 512 are provided with a side portion 513 extending toward the second plate body portion 52 and an extension portion 514 extending laterally from the end of the side portion 513. The extension portion 514 and the lateral edges of the opening 511 are located in the same horizontal plane. Two first clamping portions 515 are formed on the rear edge of the protruding plate portion 512. The second plate body portion 52 includes a flat plate portion 521 and a crimping portion 522 formed by bending and extending toward the first plate body portion 51 on both sides of the flat plate portion 521. The flat plate portion 521 includes a plurality of convex portions 523 protruding into the receiving space 500 and two second clamping portions 524 located at the rear edge of the flat plate portion 521. The two first clamping portions 515 and the two second clamping portions 524 are laterally spaced apart. Each of the first clamping portion 515 and each of the second clamping portions 524 includes a front claw portion 53 and a rear claw portion 54 provided forward and backward. The front claw portion 53 and the rear claw portion 54 are formed by bending and respectively formed with a clamping opening 55. The opening directions of the clamping openings 55 of the front claw portion 53 and the rear claw portion 54 of the first clamping portion 515 are the same. The opening directions of the clamping openings 55 of the front claw portion 53 and the rear claw portion 54 of the second clamping portion 524 are the same. The nip 55 of the front claw portion 53 and the rear claw portion 54 of the first clamping portion 515 is opposite to the bayonet direction of the nip 55 of the front claw portion 53 and the rear claw portion 54 of the second clamping portion 524 .

The plural cables 7 are four signal cables 7. Each of the signal cables 7 includes a wire core 71 at a central position, an inner insulating layer (unlabeled) surrounding the wire core 71, a shielding layer 72 wrapping the inner insulating layer (unlabeled), and the shielding The outer insulating layer 73 of layer 72.

The first circuit board 301 includes a first surface 3011 and a second surface 3012 opposite to the first surface 3011. The first circuit board 301 includes eight first contacts x on the first surface 3011. The eight first contacts x are arranged in three rows on the first surface 3011 in the front-rear direction. There are two first contacts x in the front row and the middle row. The first contact x in the next row is four. The eight first contacts x electrically connect the four signal terminals S to the cores 71 of the corresponding four signal cables 7 one by one. The first surface 3011 and the second surface 3012 further include sixteen second contacts y. The sixteen second contacts y include three second contacts y disposed on two lateral sides of the first surface 3011, and the second contacts y located on the two sides are arranged in front and back. Six second contacts y in two rows, and two second contacts y disposed on two lateral sides of the second surface 3012 respectively. The second contacts y arranged in the front and rear rows are respectively arranged in the same row as the first contacts x in the front row and the middle row. Please refer to the seventh figure, the arrangement of the two first contacts x and three second contacts y in the previous row is: one first contact x, two second contacts y, one first One contact x and one second contact y. The two first contacts x and three second contacts y in the next row are arranged as follows: one second contact y, one first contact x, two second contacts y and one first Contact x. The four first contacts x in the rear row are located between the two second contacts y at the rear ends on both sides of the first surface 3011 in the lateral direction.

In the electrical connector assembly 100 of the present invention, the insulating body 2 and the shielding shell 4 are integrally injection molded into one body. An annular second space 300 is formed between the annular butt wall 22 of the insulating body 2 and the inner surface of the cylindrical portion 41 of the shielding case 4. The cylindrical portion 41 surrounds the two through slots 211. The two through slots 211 communicate with the second space 300. The first terminals 31 are inserted into the annular mating wall 22 from bottom to top, respectively, to form the first connector 11. When viewed in the up-down direction, the soldering portions 314 of each of the first terminals 31 are arranged in two rows, and are all surrounded by the cylindrical portion 41 and exposed to the through groove 211, thereby effectively reducing the number of With the size of a connector 11, the soldering portion 314 of the first terminal 31 is evenly stressed and is not easy to be unsoldered, and the shielding shell 4 can better protect the first terminal 31 and provide better shielding of external signals.

The first connector 11 is soldered to the first surface 3011 of the first circuit board 301. The four signal terminals S in the first terminal 31 are electrically connected to the four first contacts x in the front row and the middle row, respectively. The six ground terminals G in the first terminal 31 are electrically connected to the six second contacts y provided in the two front and rear rows, respectively. The first ground portion 42 of the shielding shell 4 is electrically connected to the four second contacts y located on the two lateral sides of the first surface 3011 and positioned forward. The cores 71 of the signal cable 7 are electrically connected to the four first contacts x in the rear row respectively to transmit signals with the corresponding four signal terminals S. The insulating member 6 wraps the connection position of the wire core 71 and the first contact x to enhance welding stability and prevent short circuit.

The first circuit board 301 holding the first connector 11, the four signal cables 7 and the insulation 6 is mounted on the inner surface of the first board body portion 51 of the metal case 5. The first surface 3011 of the first circuit board 301 is directed toward the inner surface of the first board body 51. The cylindrical portion 41 of the shielding case 4 is exposed outward from the opening 511 to the metal housing 5 to be mated with the second connector 13. The welding positions of the four signal cables 7 and the first circuit board 301 and the insulating member 6 are covered by the protruding plate portion 512. The second board body 52 is bent to buckle on the second surface 3012 of the first circuit board 301. The two lateral edges of the opening 511 and the two extension portions 514 of the protruding plate portion 512 abut on a total of six second contacts y on both lateral sides of the first surface 3011. Bend the crimping portion 522 of the second plate body portion 52 to clamp the lateral edges of the opening 511 and the two extension portions 514 of the protruding plate portion 512 to better ensure the metal case 5 and the first circuit The second contact y of the board 301 is electrically connected. At this time, the convex portion 523 of the flat plate portion 521 abuts on the four second contact points y on the lateral sides of the second surface 3012 of the first circuit board 301, so that the ground terminal G in the first terminal 31, The shielding shell 4 and the metal shell 5 are electrically connected by the second contact y. The front claw portions 53 of the first clamping portion 515 and the second clamping portion 524 are bent to clamp and fix the shielding layer 72 of the signal cable 7 so that the ground terminal G and the shielding shell of the first terminal 31 The body 4 and the metal shell 5 are electrically connected to the ground through the shield layer 72. The rear claw portions 54 of the first clamping portion 515 and the second clamping portion 524 are bent to clamp and fix the outer insulating layer 73 of the signal cable 7 to achieve a fixing effect. Since the first clamping portion 515 and the second clamping portion 524 are spaced apart and respectively disposed on the first plate body portion 51 and the second plate body portion 52, the first plate body portion 51 and the second plate body portion are effectively prevented 52 separation, and prevent the four signal cables 7 from being unsoldered by force. The metal shell 5 can protect the components located in the receiving space 500 from external impact and damage, and because the metal shell 5 and the shielding layer 72 of the signal cable 7 are electrically connected to the ground, it has a better Shield function.

Referring to FIG. 11, the mating connector assembly 400 includes a second circuit board 302 and a second connector 13 electrically connected to the second circuit board 302. The second connector 13 includes an insulator 8, ten second terminals 32 held by the insulator 8, and a metal housing 9 held by the insulator 8.

The insulator 8 includes a base portion 81, a butt convex portion 82 formed to protrude upward from the base portion 81, and an annular outer wall 83 provided around the butt convex portion 82. A first space 200 is formed between the butt convex portion 82 and the annular outer wall 83.

The ten second terminals 32 correspond to the ten first terminals 31 correspondingly. Each of the second terminals 32 includes an “n”-shaped contact portion 321 exposing the mating convex portion 82, a solder leg 323 formed horizontally after being bent from one end of the contact portion 321, and from the contact portion 321 A hook portion 322 formed on both sides of the other end and extending laterally for being embedded in the insulator 8. The second terminals 32 are arranged laterally and two adjacent second terminals 32 are arranged symmetrically in the front-back direction.

The metal casing 9 includes a ring-shaped wall portion 91 formed in a ring shape and a second grounding leg 92 formed at the lower edges of both sides of the ring-shaped wall portion 91 extending laterally.

The insulator 8 is integrally injection-molded with the second terminal 32 and the metal housing 9 to form a unit. The annular wall portion 91 is held on the outer surface of the annular outer wall 83. When viewed in the up-down direction, the welding legs 323 of the ten second terminals 32 are arranged in two rows and are located inside the annular wall portion 91, so that the metal housing 9 protects the second terminals 32 and provides shielding The two rows of soldering feet 323 can effectively prevent the second connector 13 from being separated from the second circuit board 302.

When the first connector 11 and the second connector 13 are mated in the up-down direction, the mating convex portion 82 of the second connector 13 is inserted into the mating groove 221 to make the first The terminal 31 is electrically connected to the second terminal 32. Two butt joints (not labeled) of the first terminal 31 sandwich the front and rear sides of the contact portion of the second terminal 32. The annular docking wall 22 is inserted into the first space 200. The ring-shaped outer wall 83 and the ring-shaped wall portion 91 are fitted together in the second space 300. The outer surface of the ring-shaped wall portion 91 and the inner surface of the cylindrical portion 41 are fitted to be electrically connected to the ground.

The above is the preferred embodiment of the present invention. In other preferred solutions, the first connector 11 of the electrical connector assembly 100 and the second connector 13 of the mating connector assembly 400 can be swapped, which can also be achieved The object of the invention. The number of terminals of the first terminal 31 and the second terminal 32 can be increased or decreased, as long as the ground terminal G is provided between two adjacent signal terminals S.

Since the first connector 11 of the electrical connector assembly 100 and the cable 7 are electrically connected by the first circuit board 301, the cable 7 and the first terminal 31 are not directly connected , So as to protect the first terminal 31 from being damaged by being pulled by the cable 7. Furthermore, since two ground terminals G are provided between two adjacent signal terminals S in the first terminal 31, signal interference between the two signal terminals S can be effectively prevented. Furthermore, since the first terminal 31 is surrounded by the shielding case 4, the connection between the first circuit board 301 and the cable 7 and the first circuit board 301 is wrapped by the metal shell 5, and all A shielding layer 72 is provided around the core 71 of the cable 7, so that each component of the electrical connector assembly 100 that transmits signals is shielded and protected, which is beneficial to the stability of transmitting high-frequency signals.

In summary, the above are only preferred embodiments of the present invention. However, those skilled in the art may still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the content disclosed in the embodiments, that is, any simple equivalent changes and modifications made according to the patent application scope of the present invention and the description content of the present invention should be included in the following patent application scope.

100: electrical connector assembly 11: First connector 2: Insulation body 21: Base 211: through slot 22: Circular butt wall 221: Docking slot 31: First terminal 311: Docking Department 312: Fixed part 313: Card Holder 314: Welding Department 4: Shielding the shell 41: cylindrical part 42: First ground 5: Metal casing 500: containment space 51: First board body 511: opening 512: Protruding board 513: Side 514: Extension Department 515: First clamping part 52: Second board body 521: Flatbed 522: Crimping part 523: convex part 524: Second clamping part 53: front claw 54: rear grip 55: clamping opening 6: Insulation 7: cable, signal cable 71: Wire core 72: Shield 73: outer insulation 400: docking connector assembly 13: Second connector 8: insulator 81: base 82: Butt convex 83: annular outer wall 32: Second terminal 321: Contact 322: Hook 323: Welding feet 9: Metal housing 91: annular wall 92: second ground pin 200: first space 300: second space S: signal terminal G: ground terminal 301: the first circuit board 3011: First surface 3012: Second surface x: first contact y: second contact 302: Second circuit board

The first figure is a perspective schematic view of the electrical connector assembly of the present invention when docked with a docking connector assembly; The second figure is a side view of the present invention when the electrical connector assembly is mated with the mating connector assembly; The third figure is a three-dimensional schematic diagram of the electrical connector assembly of the present invention when it is separated from the mating connector assembly; The fourth figure is a perspective schematic view of the electrical connector assembly of the present invention; The fifth figure is a bottom view of the electrical connector assembly of the present invention; The sixth figure is a cross-sectional view taken along the line VI-VI of the fifth figure; The seventh figure is a perspective schematic view of the first circuit board, first connector and cable of the electrical connector assembly of the present invention; Figure 8 is a partial perspective exploded view of the electrical connector assembly of the present invention; The ninth picture is a partial exploded view of the eighth picture seen from another direction; Figure 10 is an exploded perspective view of the first connector of the electrical connector assembly of the present invention; Figure 11 is an exploded perspective view of the second connector of the butt connector assembly of the present invention.

no

100: electrical connector assembly

7: cable, signal cable

11: First connector

5: Metal casing

302: Second circuit board

400: docking connector assembly

Claims (10)

An electrical connector assembly, wherein the electrical connector assembly includes a first circuit board, a first connector held on the circuit board and a plurality of cables, and a metal housing held outside the first circuit board, The first connector includes an insulating body, a plurality of first terminals held in the insulating body, and a shielding case held in the insulating body. The insulating body includes a base and a protrusion extending upward from the base An annular butt wall having a butt groove, the plurality of first terminals includes at least two signal terminals and a ground terminal between the two signal terminals, and the first circuit board connects the plurality of first terminals to the plurality of wires The cable is electrically connected, and the metal housing accommodates the first circuit board and the first connector and has an opening for the first connector to protrude outward. The electrical connector assembly according to item 1 of the patent application scope, wherein the metal housing includes a first plate body portion and a second plate body portion opposite to the first plate body portion, the first plate body portion An accommodating space for accommodating the first circuit board and the first connector is formed between the second board body portion, the opening is located in the first board body portion, and the first board body portion includes A protruding plate portion protruding outwardly behind the opening, and both sides of the protruding plate portion are provided with a side portion extending toward the second plate body portion and an extension portion extending laterally from the end of the side portion, The extension part and the lateral edges of the opening are located in the same horizontal plane, the second plate body part is formed by bending and extending from the front end of the first plate body part, and the second plate body part includes a flat plate And a crimping portion that is bent and extended on both sides of the flat plate portion, and the crimping portion is sandwiched between the lateral edges of the opening and the extension portion. The electrical connector assembly as described in item 2 of the patent application range, wherein the front and back ends of the base of the insulating body are provided with two through slots penetrating up and down, and the plural first terminals of the first connector include The fixing portion in the annular butting wall, the "U" shaped butting portion extending from one end of the fixing portion and exposed in the butting groove, and the welding portion extending from the other end of the fixing portion are adjacent Of the two first terminals are arranged in reverse symmetry in the front-rear direction, the welding portions of the plurality of first terminals are exposed in the two through slots, and the shielding housing includes a ring provided around the annular butting wall A cylindrical portion and a first grounding portion formed laterally extending at a lower edge of the cylindrical portion, the cylindrical portion surrounding the two through slots to accommodate the welding portion of the first terminal in the shielding case In the body, the first connector part is exposed outside the metal housing through the opening. The electrical connector assembly as described in item 3 of the patent application range, wherein the plurality of first terminals includes at least a plurality of signal terminals and a plurality of ground terminals, and two ground terminals are provided between two adjacent signal terminals. The plurality of cables includes at least a plurality of signal cables, the first circuit board has a first surface and a second surface opposite to the first surface, the first circuit board includes a power supply located on the first surface The plurality of first contacts electrically connected to the plurality of signal cables and the plurality of signal terminals of the first connector. The electrical connector assembly as described in item 4 of the patent application scope, wherein the plurality of signal cables all include a wire core at a central position, an inner insulating layer surrounding the wire core, and a shielding layer surrounding the inner insulating layer And an outer insulating layer surrounding the shielding layer, the wire core is electrically connected to the first contact point, a plurality of first clamping parts are formed on the trailing edge of the protruding plate part, and the second plate body part A plurality of second clamping parts are formed on the trailing edge, the plurality of first clamping parts and the plurality of second clamping parts are arranged side by side in the lateral direction, the plurality of first clamping parts and the plurality of second clamping parts Each part corresponds to the shielding layer and the outer insulating layer of the plurality of signal cables. The first clamping part and the second clamping part both have clamping openings. The clamping openings of the first clamping section and the The direction of the clamping opening of the second clamping portion is opposite. The electrical connector assembly as described in item 5 of the patent application scope, wherein the first circuit board has a plurality of second contacts on the first surface and the second surface, the ground terminal, the first ground portion, The lateral edges and extensions of the opening are electrically connected to the plurality of second contacts on the first surface, the flat plate portion includes a convex portion protruding into the receiving space, the convex portion and all The grounding portion of the shielding shell is electrically connected to a plurality of second contacts on the second surface. The electrical connector assembly as described in item 2 of the patent application range, wherein the plurality of cables and the first circuit board are electrically connected to the rear end of the first circuit board, and the plurality of cables and all The electrical connection point of the first circuit board is located between the protruding board portion of the first board body and the second board body, the electrical connector assembly further includes an insulating member, and the insulating member wraps the The electrical connection between the plurality of cables and the first circuit board. A docking connector assembly that docks with an electrical connector assembly as described in item 1 of the patent application range, wherein the docking connector assembly includes a second circuit board and a second electrically connected to the second circuit board Connector, the second connector includes an insulator, a plurality of second terminals held on the insulator, and a metal case held on the outside of the insulation body, the insulator is integrally injection molded with the plurality of second terminals and the metal case Formed as one body, the insulator includes a base, a butt convex formed to protrude upward from the base, and a ring-shaped outer wall provided on the peripheral side of the butt convex, formed between the butt convex and the ring-shaped outer wall There is a first space for the mating of the annular butting wall, and the metal casing includes an annular wall portion held outside the annular butting wall and a second grounding portion formed laterally and extending at the lower edge of the annular wall portion. The electrical connector assembly as described in item 8 of the patent application range, wherein the second terminal includes an "n"-shaped contact portion exposed at the mating convex portion and formed by bending and extending from one end of the contact portion For the soldering feet, the two adjacent second terminals are arranged in reverse symmetry in the front-rear direction, and the two lateral ends of the other end of the contact respectively extend laterally to form hooks embedded in the insulator. The electrical connector assembly as described in item 8 of the patent application scope, wherein a second space is formed between the annular butt wall and the shielding case, when the electrical connector assembly is docked with the butt connector assembly, The mating convex portion of the mating connector assembly is inserted into the mating groove to electrically connect the first terminal and the second terminal, and the annular outer wall and the annular wall portion are mated together In the second space, the outer surface of the annular wall portion and the inner surface of the cylindrical portion are mated to be electrically connected to the ground in common.

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