Electric connector assembly

By using separate conductive adhesive media and groove design in the electrical connector assembly, multiple shielding layers are connected in series, solving the problems of complex and cost in the prior art, and improving shielding effect and signal integrity.

CN120300543APending Publication Date: 2025-07-11DEYI PRECISION ELECTRONIC IND CO LTD PANYU
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Patent Information

Application Number
CN202510322730.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

When existing electrical connector components improve shielding efficiency, there are problems such as complex manufacturing processes and high material costs. In particular, the use of conductive silver glue increases unnecessary complexity and cost in the entire connecting structure.

Method used

A discrete conductive adhesive medium is used to connect multiple shielding layers, and grooves are provided on the first grounding member to fix the conductive adhesive medium. The series connection of multiple shielding layers is achieved through openings and recesses on the shielding member to reduce the use of conductive adhesive medium.

Benefits of technology

While reducing the manufacturing process and cost, the shielding effect is enhanced, the contact area and conduction efficiency of the conductive adhesive medium and the shielding layer are improved, the electromagnetic shielding path is optimized, crosstalk is reduced, and signal integrity is improved.

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Abstract

An electric connector assembly disclosed by the present invention comprises an insulating body, a plurality of signal terminal pairs, a plurality of first grounding pieces, a shielding piece, a plurality of conductive bonding media and a cable, the first grounding pieces are arranged between the adjacent signal terminal pairs at intervals, the first grounding pieces shield signal wiring parts in the left-right direction, the first grounding pieces are provided with recesses, and the shielding piece covers the conductive bonding media. The shielding piece is provided with a plurality of openings, each opening is communicated with one corresponding recess, one conductive bonding medium is filled in one recess through one opening, and each conductive bonding medium is connected with one first grounding piece and the cable shielding layers located on the two sides of the first grounding piece. According to the invention, through cooperation of the opening and the recess, the conductive bonding medium can be added without adding other fixing structures, the recess is filled with the conductive bonding medium, and series connection of a plurality of shielding layers is realized through the discrete conductive bonding medium.
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Description

Technical Field

[0001] The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly for high-frequency signal transmission.

Background Art

[0002] With the improvement of the signal transmission rate of electrical connectors, the suppression of internal electromagnetic interference has become a key challenge. Currently, typical electrical connector assemblies usually include cables, signal terminals, and shielding structures. Among them, the cable consists of a signal wire and a shielding layer covering it. The signal wire is electrically connected to the signal terminal, and the shielding layer is electrically connected to the shielding structure. To improve the shielding efficiency, in the prior art, the shielding layers of multiple cables are generally electrically connected to the shielding member to increase the grounding loop to reduce crosstalk.

[0003] Chinese Patent CN202411354890.6 proposed an improved solution, which uses a conductive shielding member 3 and a conductive shielding member 5 to cooperate to shield the signal terminal 21. A fixing member 9 is provided on the cable 8. The fixing member 9 has a fixing groove, and a strip of conductive silver paste Q is filled in the fixing groove. The shielding layers 82 of multiple cables 8 are connected in series through the conductive silver paste Q, and the conductive silver paste Q also electrically connects the shielding layer 82 to the conductive shielding member 5. Although this design improves the high-frequency performance by increasing the grounding return path through the conductive silver paste, there are still defects. To achieve precise positioning of the conductive silver paste, a fixing structure needs to be added, resulting in more manufacturing processes. The entire row of shielding layers is connected by a continuous strip of conductive silver paste, resulting in a large area of use of the conductive silver paste and a high material cost.

[0004] Therefore, it is necessary to design an electrical connector assembly to overcome the above problems.

Summary of the Invention

[0005] The creative purpose of the present invention is to provide an electrical connector assembly, which realizes the series connection of multiple shielding layers through discrete conductive bonding media, and provides grooves on the first grounding member to fix the conductive bonding media, saving costs and manufacturing processes while improving the shielding effect.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An electrical connector assembly, characterized in that it includes: an insulating body; a plurality of signal terminal pairs received in the insulating body, the signal terminal pairs are arranged in rows in the left-right direction, each signal terminal pair includes two signal terminals, and the signal terminal includes a signal connection portion; a plurality of first grounding members spaced between adjacent signal terminal pairs, the first grounding members shield the signal connection portions in the left-right direction, and each first grounding member is provided with a recess; a shielding member connecting the plurality of first grounding members, the shielding member and two adjacent first grounding members enclose a shielding channel extending in a first direction, the shielding member is provided with a plurality of openings, and each opening communicates with a corresponding recess; a plurality of cables, including signal lines and shielding layers covering the signal lines, the signal lines are connected to the signal connection portions, the shielding layers are exposed in the shielding channel, the first grounding members are located between the shielding layers of two adjacent cables, and the recesses communicate with two adjacent shielding channels; a plurality of conductive adhesive media, each conductive adhesive media is filled into a recess through an opening, and each conductive adhesive media connects a first grounding member and the shielding layers on both sides of the first grounding member.

[0008] Further, the opening extends in the left-right direction to the area between two adjacent shielding channels, and each of the two shielding channels houses a shielding layer. Define a second direction perpendicular to the first direction and the left-right direction. When observed along the second direction, the opening exposes partial outer surfaces of the two shielding layers.

[0009] Further, define a second direction perpendicular to the first direction and the left-right direction. When observed along the second direction, the recess is completely exposed in the opening.

[0010] Further, the shielding member includes a welding portion and a first abutting portion located between two adjacent openings. The welding portion is welded to the first grounding member, and the first abutting portion abuts against the shielding layer. In the left-right direction, a plurality of welding portions and a plurality of first abutting portions are alternately arranged, and each welding portion is connected to an adjacent first abutting portion. The welding portion is provided with at least two in the first direction, and the two welding portions are located on both sides of the opening.

[0011] Further, it includes a second grounding member connecting the plurality of first grounding members. The shielding layer is located between the shielding member and the second grounding member. The shielding member protrudes into the shielding channel with a first abutting portion, and the second grounding member protrudes into the shielding channel with a second abutting portion. The first abutting portion and the second abutting portion abut against both sides of the shielding layer in opposite directions. The distance that the second abutting portion protrudes into the shielding channel is greater than the distance that the first abutting portion protrudes into the shielding channel. The cable is closer to the shielding member than the second grounding member.

[0012] Furthermore, the distance between the signal line and the shielding member is less than the distance between the signal line and the second grounding member. The signal connection portion includes a first side close to the shielding member and a second side close to the second grounding member. The signal line is welded to the first side. The signal terminal includes a signal spring arm that abuts downward against an electronic component. The thickness of the signal connection portion is less than the thickness of the signal spring arm. The distance between the signal line and the shielding member is equal to the distance between the second side and the second grounding member.

[0013] Furthermore, the signal terminal includes a signal spring arm that abuts downward against an electronic component and a signal fixing portion that connects the signal spring arm and the signal connection portion. An insulating member is fixed on the signal fixing portion. The insulating member is received in the shielding channel, and the insulating member interferes with the first grounding member. A metal member extends into the shielding channel from the shielding member. The metal member blocks the insulating member from moving downward.

[0014] Furthermore, it includes a second grounding member that connects multiple first grounding members. The signal terminal is located between the shielding member and the second grounding member. The metal member is also located between the shielding member and the second grounding member. The metal member shields the signal spring arm. The distance between the signal spring arm and the metal member is equal to the distance between the signal spring arm and the second grounding member.

[0015] Furthermore, the first grounding member is recessed with a groove. The metal member is positioned in the groove. The groove has a first groove wall and a second groove wall that are opposite to each other in a first direction. The second groove wall is closer to the insulating member than the first groove wall. The insulating member has a blocking surface. The metal member blocks the blocking surface. The blocking surface is flush with the second groove wall.

[0016] Furthermore, it includes a second grounding member that connects multiple first grounding members. The signal terminal is located between the shielding member and the second grounding member. The second grounding member includes a grounding plate and a grounding spring arm that extends downward from the grounding plate. The signal terminal includes a signal spring arm. Both the signal spring arm and the grounding spring arm are configured to abut downward against an electronic component. The grounding plate is fixed to the first grounding member. The first grounding member is recessed upward with a relief groove. In the left - right direction, the projection of the grounding spring arm and the signal spring arm partially overlaps. After the grounding spring arm abuts downward against the electronic component, at least part of the grounding spring arm enters the relief groove.

[0017] Compared with the prior art, an electrical connector assembly provided by the present invention has the following beneficial effects:

[0018] Connecting a first grounding member and shielding layers located on both sides of the first grounding member through a conductive adhesive medium can increase the connection channels between multiple shielding layers and multiple first grounding members, enhancing the shielding effect of the first grounding member and the shielding layers. The shielding member is provided with an opening, and the first grounding member is provided with a recess. The conductive adhesive medium is filled in the recess through the opening, enabling precise positioning without adding other fixing structures. Moreover, the conductive adhesive medium is in multiple small pieces, with one conductive adhesive medium connecting the shielding member, two shielding layers, and the first grounding member located between the two shielding layers. Finally, the series connection of multiple shielding layers is achieved through discrete conductive adhesive media. Compared with the solution in the background art that directly connects multiple shielding layers with a single whole conductive adhesive medium, it can save the use of the conductive adhesive medium and reduce costs.

Description of the Drawings

[0019] Figure 1 is a schematic diagram of the prior art;

[0020] Figure 2 is a perspective schematic diagram of the electrical connector assembly and the electronic component of the present invention;

[0021] Figure 3 is an exploded perspective view of the electrical connector assembly of the present invention;

[0022] Figure 4 is a side view of the electrical connector assembly of the present invention after removing the insulating body;

[0023] Figure 5 is Figure 4 an exploded view of;

[0024] Figure 6 is Figure 4 a schematic diagram after removing the first grounding member and one insulating member;

[0025] Figure 7 is Figure 6 a schematic diagram from another perspective;

[0026] Figure 8 is Figure 6 a schematic diagram from yet another perspective;

[0027] Figure 9 is Figure 5 an enlarged view of part A in;

[0028] Description of the reference numerals in the specific embodiments:

[0029]

Specific Embodiments

[0030] To better understand the purpose, structure, features, and efficacy of the present invention, etc., the present invention will be further described below in conjunction with the drawings and specific embodiments.

[0031] The electrical connector assembly of the present invention defines a three-dimensional coordinate system, with the left-right direction being the X-axis direction, the first direction being the Y-axis direction, and the second direction being the Z-axis direction. The spatial relationships of all components are based on this coordinate system.

[0032] As Figure 2 shown, the present invention provides an electrical connector assembly 100 for connecting to an electronic component, where the electronic component is a circuit board.

[0033] As Figure 3 、 Figure 4 and Figure 5 shown, the electrical connector assembly 100 includes an insulating body 1, a shielding assembly, signal terminal pairs 2, a metal part 6, an insulating part 7, and a cable 8. The shielding assembly is assembled within the insulating body 1 to form a plurality of shielding channels T extending in the first direction. Each shielding channel T has a first channel wall and a second channel wall disposed opposite to each other. In this embodiment, the electronic component is a circuit board, the signal terminal pairs 2 are in contact with the circuit board downward, the first direction is inclined forward and downward, and the second direction is defined as perpendicular to the first direction and the left-right direction. In this embodiment, the second direction is inclined backward and downward.

[0034] The shielding assembly includes a first grounding part 4, a second grounding part 5, and a shielding part 3. There are a plurality of first grounding parts 4, and each first grounding part 4 is located between adjacent signal terminal pairs 2. Two first grounding parts 4 are connected to the second grounding part 5 and the shielding part 3 and jointly enclose the shielding channel T. The shielding part 3 constitutes the first channel wall, and the second grounding part 5 constitutes the second channel wall.

[0035] A plurality of signal terminal pairs 2 are arranged in rows in the left-right direction. One signal terminal pair 2 is assembled within each shielding channel T. Each signal terminal pair 2 includes two signal terminals S. Each signal terminal S includes a signal connection part 21, a signal fixing part 22, and a signal spring arm 23. The signal fixing part 22 connects the signal connection part 21 and the signal spring arm 23. The signal spring arm 23 extends in the first direction and is in contact with the circuit board downward. The signal connection part 21 includes a first side 211 close to the first channel wall and a second side 212 close to the second channel wall.

[0036] A plurality of cables 8, including signal lines 81 and a shielding layer 82 covering the signal lines 81, the signal lines 81 are welded to the first side 211 of the signal connection part 21, and the shielding layer 82 is exposed within the shielding channel T and is connected to the shielding assembly.

[0037] As Figure 5 、 Figure 7 and Figure 8As shown, the shielding member 3 extends in the first direction with a plurality of connecting portions 32. Each connecting portion 32 is connected to the front end of a first grounding member 4. The width of the connecting portion 32 in the left-right direction is greater than the width of the front end of the first grounding member 4 in the left-right direction, and in the second direction, the connecting portion 32 does not overlap with the projection of the signal terminal S.

[0038] The metal member 6 is fixed to the shielding member 3, and the width of the metal member 6 in the left-right direction is greater than the width of the signal elastic arm 23 in the left-right direction. In this embodiment, the metal member 6 and the shielding member 3 are integrally formed. Of course, in other embodiments, the metal member 6 can be welded to the shielding member 3 or connected to the shielding member 3 through a snap structure. The first grounding member 4 is recessed with a groove 41. The groove 41 has a first groove wall 411 and a second groove wall 412 opposite to each other in the first direction. The second groove wall 412 is closer to the insulating member 7 than the first groove wall 411. The metal member 6 is bilaterally limited by the first groove wall 411 and the second groove wall 412 in the groove 41, so that the metal member 6 can be accurately positioned through the groove 41. The metal member 6 shields the signal elastic arm 23 in the second direction, and the thickness of the metal member 6 in the second direction enables the distance D1 between the signal elastic arm 23 and the metal member 6 to be equal to the distance D2 between the signal elastic arm 23 and the second grounding member 5.

[0039] The shielding member 3 is provided with a plurality of openings 33 and a plurality of conductive adhesive media 35. Each first grounding member 4 is recessed with a depression 42. Each opening 33 communicates with a corresponding depression 42. Each conductive adhesive media 35 is filled into a depression 42 through an opening 33, and each conductive adhesive media 35 connects a first grounding member 4 and the shielding layers 82 on both sides of the first grounding member 4. The conductive adhesive media 35 in this embodiment is conductive silver paste. Of course, in other embodiments, the conductive adhesive media 35 can also be a bonding medium with a high conductivity such as solder paste. The high conductivity here specifically refers to a conductivity higher than 1.0×10^5 S / m.

[0040] The opening 33 extends in the left-right direction to the area between two adjacent shielding channels T. Each of the two shielding channels T houses a shielding layer 82 of a cable 8. When observed in the second direction, the opening 33 exposes a part of the outer surface of the two shielding layers 82, and the depression 42 is completely exposed in the opening 33. The shielding member 3 protrudes into the shielding channel T with a plurality of first abutting portions 31. Each first abutting portion 31 is located between two adjacent openings 33 and abuts against a shielding layer 82. The length of the first abutting portion 31 in the first direction is greater than the length of the opening 33 in the first direction, and the opening 33 is close to the middle of the first abutting portion 31.

[0041] The shielding member 3 also includes a welding portion 34, which is fixed to the first grounding member 4 by laser spot welding. Along the left and right directions, multiple welding portions 34 are alternately arranged with multiple first abutting portions 31, and each welding portion 34 is connected to an adjacent first abutting portion 31. At least two welding portions 34 are provided along the first direction, and the two welding portions 34 are located on both sides of the opening 33, and are respectively connected to the upper end and the lower end of the first abutting portion 31 in the first direction. The left and right sides of the first abutting portion 31 are welded to the first grounding member 4 by welding portions 34, and two welding portions 34 are provided on each side to respectively connect the upper end and the lower end of the first abutting portion 31, which makes it difficult for the first abutting portion 31 to deviate when abutting the shielding layer, thereby improving the grounding stability.

[0042] like Figure 4 and Figure 7 As shown, the second grounding member 5 includes a grounding plate 51 and a grounding spring arm 52 extending from the grounding plate 51 along the first direction. The grounding plate 51 is fixed to the first grounding member 4 by snapping and welding. The grounding spring arm 52 is used to abut the circuit board downward. The first grounding member 4 is upwardly recessed with a clearance groove 43. The part of the grounding spring arm 52 close to the circuit board and the part of the signal flare arm 23 close to the circuit board are projected overlapped along the left and right directions. After the grounding spring arm 52 is pressed down to abut the electronic component, a part of the grounding spring arm 52 enters the clearance groove 43. From the perspective of the left and right directions, the grounding spring arm 52 appears to be basically completely attached to the first grounding member 5.

[0043] like Figure 6 As shown, the grounding plate 51 is provided with a second abutting portion 511 protruding into the shielding channel T, the first abutting portion 31 and the second abutting portion 511 abut against two sides of the shielding layer 82 in opposite directions, and the distance that the second abutting portion 511 protrudes into the shielding channel T is greater than the distance that the first abutting portion 31 protrudes into the shielding channel T. This makes the position of the signal line 81 in the shielding channel T closer to the shielding member 3, that is, the distance between the signal line 81 and the shielding member 3 is less than the distance between the signal line 81 and the second grounding member 5.

[0044] The thickness of the signal wiring part 21 in the second direction is smaller than the thickness of the signal flare arm 23 in the second direction, so that after the signal line 81 is welded to the signal wiring part 21, the distance D3 between the signal line 81 and the shielding member 3 is equal to the distance D4 between the second side 212 of the signal wiring part 21 and the second grounding member 5. That is to say, the assembly of the signal line 81 and the signal wiring part 21 after welding is located at the center of the shielding channel T.

[0045] like Figure 6 , Figure 8 and Figure 9As shown, the insulating member 7 is covered and fixed on the signal fixing portion 22. The insulating member 7 includes a limiting portion 71 and a stopping surface 72. The limiting portion 71 fixes the two signal connection portions 21 of a signal terminal pair 2. The stopping surface 72 is flush with the second groove wall 412. The metal member 6 stops the stopping surface 72, so that the insulating member 7 cannot move downward along the first direction. Of course, in actual production, due to tolerances, the stopping surface 72 may not be completely flush with the second groove wall 412. Therefore, the stopping surface 72 is very close to the second groove wall 412 and the metal member 6 can stop the insulating member 7, which is also within the scope of the specific embodiments of the present invention.

[0046] The limiting portion 71 includes three bumps 711 arranged at intervals in the left-right direction and two positioning grooves 712 located between adjacent bumps 711. The signal connection portions 21 are exposed in the positioning grooves 712, and the signal wires 81 are positioned in the positioning grooves 712, so that the signal wires 81 can be accurately welded to the signal connection portions 21 through the positioning grooves 712. The limiting portion 71 further includes limiting blocks 714 extending leftward or rightward from the bumps 711. The first grounding member 4 includes limiting grooves 44, and the limiting blocks 714 are clamped in the limiting grooves 44. Through the cooperation of the limiting blocks 714 and the limiting grooves 44, the insulating member 7 can be fixed in the shielding channel T to prevent the insulating member 7 from moving upward or downward along the first direction.

[0047] A UV glue 73 is provided at the connection between the signal wire 81 and the signal connection portion 21 to enable the signal wire 81 and the signal connection portion 21 to be stably connected. Even if the cable 8 is subjected to a large pull, the signal wire 81 will not be disconnected from the signal connection portion 21. The limiting portion 71 is also provided with a through hole 713 penetrating in the second direction, and a part of the signal connection portion 21 extends into the through hole 713, and a part of the UV glue 73 enters the through hole 713, so that the UV glue 73 can be fixed on the limiting portion 71 to cover the signal connection portion 21 and prevent the signal connection portion 21 from falling off the limiting portion 71.

[0048] In summary, the present invention has the following effects:

[0049] 1. Connecting a first grounding member 4 to shielding layers 82 on both sides of the first grounding member 4 through a conductive adhesive medium 35 can increase the connection channels between multiple shielding layers 82 and multiple first grounding members 4, enhancing the shielding effect of the first grounding member 4 and the shielding layer 82. The shielding member 3 is provided with an opening 33, and the first grounding member 4 is provided with a recess 42. The conductive adhesive medium 35 is filled in the recess 42 through the opening 33, enabling precise positioning without adding other fixing structures. Moreover, the conductive adhesive medium 35 is in multiple small pieces. One conductive adhesive medium 35 connects the shielding member 3, two shielding layers 82, and the first grounding member 4 between the two shielding layers 82. Finally, the series connection of multiple shielding layers 82 is achieved through discrete conductive adhesive media 35. Compared with the solution in the background art that directly connects multiple shielding layers 82 with a single whole conductive adhesive medium 35, the use of the conductive adhesive medium 35 can be saved, reducing costs.

[0050] 2. Since the opening 33 extends in the left - right direction to the area between two adjacent shielding channels T and the opening 33 exposes partial outer surfaces of two shielding layers 82, when the conductive adhesive medium 35 is filled into the recess 42 from the opening 33, it will not only connect the sides of the shielding layers 82 but also connect the partial shielding layers 82 of two cables 8 exposed in the opening 33. This increases the contact area between the conductive adhesive medium 35 and the shielding layer 82, improves the conduction efficiency between the conductive adhesive medium 35 and the shielding layer 82, forms a more complete electromagnetic shielding path, and enhances the shielding effect.

[0051] 3. A metal part 6 is arranged on the first channel wall 411 such that the distance D1 between the signal elastic arm 23 and the metal part 6 is equal to the distance D1 between the signal elastic arm 23 and the second channel wall 412. That is to say, the signal elastic arm 23 is partially located at the center of the shielding channel T, making the electromagnetic field distribution around the signal elastic arm 23 more uniform, improving the shielding effect, reducing crosstalk, and at the same time being able to adjust the capacitance at the signal elastic arm 23, optimizing the elastic arm impedance, and improving signal integrity.

[0052] 4. A groove 41 is arranged on the first grounding member 4, and the second groove wall 412 of the groove 41 is flush with the stop surface 72. This enables the metal part 6 to be precisely positioned through the groove 41, so that the insulating part 7 can be more accurately blocked from moving downward.

[0053] 5. A relief groove 43 is arranged on the first grounding member 4 to allow the grounding elastic arm 52 to enter. After the electrical connector abuts against the electronic component, the grounding elastic arm 52 and the first grounding member 4 overlap in the left - right direction projection. Compared with the grounding elastic arm 52 directly adhering to the bottom surface of the first grounding member 4, there will be fewer gaps between the grounding elastic arm 52 and the projection of the grounding member in the left - right direction, and the shielding effect of the grounding elastic arm 52 and the grounding member on the signal elastic arm 23 will be better.

[0054] 6. The connecting portion 32 is connected to the front end of the first grounding member 4, which can make the potential distribution of each part of the shielding member 3 more uniform. In addition, the width of the connecting portion 32 in the left - right direction is greater than the width of the front end of the first grounding member 4 in the left - right direction, so that the connecting portion 32 extends beyond the first grounding member 4 in the left - right direction. This extended part can block more interference signals and enhance the shielding effect. Moreover, the projection of the connecting portion 32 in the up - down direction does not overlap with the projection of the signal terminal S in the up - down direction, which can prevent the width of the connecting portion 32 from being too large, so that the connecting portion 32 will not be too close to the signal terminal S, thereby preventing the connecting portion 32 from accidentally contacting the signal terminal S and causing a short - circuit.

[0055] 7. The thickness of the second abutting portion 511 protruding into the shielding channel T is greater than the thickness of the first abutting portion 31 protruding into the shielding channel T. Such a design can adjust the position of the shielding layer 82 in the shielding channel T, making the shielding layer 82 closer to the shielding member 3. The conductive adhesive medium 35 enters the recess 42 through the opening 33 of the shielding member 3. Since the shielding layer 82 is closer to the shielding member 3, that is, the shielding layer 82 will be closer to the opening 33, this will increase the area of the shielding layer 82 exposed in the recess 42. Naturally, the same volume of the conductive adhesive medium 35 can contact a larger area of the shielding layer 82, thereby enhancing the shielding effect.

[0056] 8. The structure of the cable 8 is generally determined. Making the thickness of the second abutting portion 511 protruding into the shielding channel T greater than the thickness of the first abutting portion 31 protruding into the shielding channel T can also adjust the position of the signal line 81 in the shielding channel T, making the distance D3 between the signal line 81 and the first channel wall 411 less than the distance D3 between the signal line 81 and the second channel wall 412. Further, the thickness of the signal connection portion 21 is designed to be less than the thickness of the signal spring arm 23, making the signal connection portion 21 closer to the second grounding member 5. Then, the distance D3 between the signal line 81 and the first channel wall 411 is made equal to the distance D4 between the second side 212 and the second channel wall 412, making the electromagnetic field distribution around the combination of the signal connection portion 21 and the signal line 81 more uniform, thereby enhancing the shielding effect and improving the signal integrity.

[0057] The thickness of the signal connection portion 21 being less than the thickness of the signal spring arm 23 can also make the impedance of the signal connection portion 21 greater than the impedance of the signal spring arm 23. Because after the signal connection portion 21 is connected to the signal line 81, the impedance of the combination of the signal connection portion 21 and the signal line 81 is less than the impedance of the signal connection portion 21. Therefore, the impedance of the combination of the signal connection portion 21 and the signal line 81 can instead match the impedance at the signal spring arm 23, thereby improving the signal integrity.

[0058] The above detailed description is only for the description of the preferred embodiments of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the content of this creative specification and drawings are included in the patent scope of this creation.

Claims

1. An electrical connector assembly, characterized in that, Comprising: Insulating body; A plurality of signal terminal pairs, received in the insulating body, the signal terminal pairs arranged in rows in the left-right direction, each signal terminal pair including two signal terminals, the signal terminals including signal connection portions; A plurality of first grounding members, spaced between adjacent signal terminal pairs, the first grounding members shielding the signal connection portions in the left-right direction, each first grounding member having a depression; A shielding member, connecting the plurality of first grounding members, the shielding member and adjacent two first grounding members enclosing a shielding channel extending in a first direction, the shielding member having a plurality of openings, each opening communicating with a corresponding depression; A plurality of cables, including signal lines and shielding layers covering the signal lines, the signal lines connecting the signal connection portions, the shielding layers exposed in the shielding channel, the first grounding members located between the shielding layers of adjacent two cables, and the depressions communicating with adjacent two shielding channels; A plurality of conductive adhesive media, each conductive adhesive media filled in a depression through an opening, and each conductive adhesive media connecting a first grounding member and the shielding layers on both sides of the first grounding member.

2. The electrical connector assembly according to claim 1, wherein The opening extends in the left-right direction to the region between adjacent two shielding channels, each of the two shielding channels receiving a shielding layer, defining a second direction perpendicular to the first direction and the left-right direction, when observed along the second direction, the opening exposes partial outer surfaces of the two shielding layers.

3. The electrical connector assembly according to claim 1, wherein Defining a second direction perpendicular to the first direction and the left-right direction, when observed along the second direction, the depression is completely exposed in the opening.

4. The electrical connector assembly according to claim 1, wherein, The shielding member includes a welding portion and a first abutting portion located between adjacent two openings, the welding portion welded to the first grounding member, the first abutting portion abutting against the shielding layer, in the left-right direction, the plurality of welding portions and the plurality of first abutting portions are alternately arranged, and each welding portion is connected to an adjacent first abutting portion, the welding portion having at least two in the first direction, and the two welding portions located on both sides of the opening.

5. The electrical connector assembly according to claim 1, wherein, Including a second grounding member connecting the plurality of first grounding members, the shielding layer located between the shielding member and the second grounding member, the shielding member protruding into the shielding channel with a first abutting portion, the second grounding member protruding into the shielding channel with a second abutting portion, the first abutting portion and the second abutting portion abutting against both sides of the shielding layer in opposite directions, the distance that the second abutting portion protrudes into the shielding channel being greater than the distance that the first abutting portion protrudes into the shielding channel, the cable being closer to the shielding member than the second grounding member.

6. The electrical connector assembly according to claim 5, wherein The distance between the signal line and the shielding member is less than the distance between the signal line and the second grounding member, the signal connection portion including a first side close to the shielding member and a second side close to the second grounding member, the signal line welded to the first side, the signal terminal including a signal spring arm abutting downward against an electronic component, the thickness of the signal connection portion being less than the thickness of the signal spring arm, the distance between the signal line and the shielding member being equal to the distance between the second side and the second grounding member.

7. The electrical connector assembly according to claim 1, wherein, The signal terminal includes a signal flare arm that abuts against an electronic component downward, and a signal fixing part connecting the signal flare arm and the signal wiring part. An insulating part is fixed on the signal fixing part. The insulating part is accommodated in the shielding channel, and the insulating part interferes with the first grounding part. A metal part extends from the shielding channel into the shielding channel, and the metal part prevents the insulating part from moving downward.

8. The electrical connector assembly according to claim 7, wherein, It includes a second grounding member connected to multiple first grounding members, the signal terminal is located between the shielding member and the second grounding member, the metal member is also located between the shielding member and the second grounding member, the metal member shields the signal flare arm, and the distance between the signal flare arm and the metal member is equal to the distance between the signal flare arm and the second grounding member.

9. The electrical connector assembly according to claim 7, wherein, The first grounding member is recessed with a groove, the metal member is positioned in the groove, the groove has a first groove wall and a second groove wall opposite to each other along a first direction, the second groove wall is closer to the insulating member than the first groove wall, the insulating member has a stopping surface, the metal member stops the stopping surface, and the stopping surface is flush with the second groove wall.

10. The electrical connector assembly according to claim 1, characterized in that, It includes a second grounding member connected to multiple first grounding members, the signal terminal is located between the shielding member and the second grounding member, the second grounding member includes a grounding plate and a grounding spring arm extending downward from the grounding plate, the signal terminal includes a signal spring arm, the signal spring arm and the grounding spring arm are both configured to abut against the electronic component downward, the grounding plate is fixed to the first grounding member, the first grounding member is recessed with a clearance groove upward, the grounding spring arm and the projection of the signal spring arm partially overlap in the left and right directions, and after the grounding spring arm abuts against the electronic component downward, the grounding spring arm at least partially enters the clearance groove.

Citation Information

Patent Citations

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    CN119275651A