Electrical connector

Abstract

An electrical connector includes: a plurality of pairs of differential signal terminals arranged in a first direction; two shielding sheets arranged between two pairs of differential signal terminals closest to each other in the first direction; and a grounding member having two arm portions corresponding to the two shielding sheets, the two arm portions being located on a side of the two shielding sheets facing a mating element, each arm portion including two first contact arms arranged in the first direction, two second contact arms arranged in the first direction, and a contact portion located between the two first contact arms and the two second contact arms in a second direction, the contact portion being integrally connected to the two first contact arms and the two second contact arms, the contact portion being configured to contact the mating element in a mating direction, and in the second direction, ends of the two second contact arms away from the contact portion being connected to each other, for one arm portion, when the mating element abuts against the contact portion, the two first contact arms move away from the two second contact arms, the two first contact arms respectively contact the two shielding sheets one by one, and the two second contact arms respectively contact the two shielding sheets one by one.

Description

Technical Field

[0001] This invention relates to an electrical connector, and more particularly to an electrical connector that can suppress resonance and has good shielding effect. Background Technology

[0002] Patent CN202511432765.7 relates to an electrical connector mounted on a circuit board. The connector includes multiple electrical modules, each of which includes two signal terminals and an arm located between the two signal terminals. A conductive element is located on the side of the multiple electrical modules facing the circuit board. The conductive element includes multiple elastic conductive arms that contact the circuit board, allowing the conductive element to be grounded to the circuit board. The grounding current on the arm flows out to the circuit board through a path of series connector, grounding element, connector, and conductive element. The grounding return path is relatively long, which may cause undesirable resonance in the electrical connector. Furthermore, because the path is long, the grounding current cannot flow out quickly, and the shielding effect is weakened. Therefore, a new electrical connector needs to be designed to solve the above problems. Summary of the Invention

[0003] To address the problems encountered in the background art, the purpose of this invention is to provide an electrical connector with good shielding effect and beneficial for suppressing resonance by setting two first contact arms and two second contact arms on one arm, with the two first contact arms contacting the two shields located between the two differential signal terminal pairs, and the two second contact arms contacting the two shields located between the two differential signal terminal pairs. This stabilizes the contact between the arm and the two shields, thereby improving shielding performance. Furthermore, the contact portion on the arm for contacting the mating element is located between the two first contact arms and the two second contact arms, and is integrally connected to the two first contact arms and the two second contact arms. This allows the grounding return current from the shields to the grounding element to flow out to the mating element along the shorter path of shield-first contact arm-contact portion or shield-second contact arm-contact portion.

[0004] To achieve the above objectives, the present invention employs the following technical means: An electrical connector for electrically connecting to a mating element along a mating direction, characterized in that it comprises: a row of differential signal terminal pairs arranged along a first direction; two shielding plates disposed between the two closest differential signal terminal pairs along the first direction; a grounding member having an arm portion corresponding to the two shielding plates, the arm portion being located on the side of the two shielding plates facing the mating element, the arm portion including two first contact arms spaced apart along the first direction, two second contact arms spaced apart along the first direction, and a contact portion located between the two first contact arms and the two second contact arms along a second direction, the contact portion integrally connecting the two first contact arms and the two second contact arms, the contact portion being used to contact the mating element along the mating direction, and in the second direction, the ends of the two second contact arms opposite to the contact portion being interconnected; the first direction, the second direction, and the mating direction are arranged in pairs; for one arm portion, when the mating element abuts the contact portion, the two first contact arms move away from the two second contact arms, the two first contact arms respectively contact the two shielding plates one by one, and the two second contact arms respectively contact the two shielding plates one by one.

[0005] Furthermore, from the first contact arm to the second contact arm, each shielding plate is provided with a first abutment, a protrusion, and a second abutment on the side facing the mating element. Along the mating direction, the protrusion is positioned closer to the mating element than the first abutment and the second abutment. When the electrical connector is electrically connected to the mating element, the first abutment abuts against the first contact arm, the second abutment abuts against the second contact arm, and the contact portion is located between the mating element and the protrusion. Along the mating direction, the protrusion and the contact portion are spaced apart.

[0006] Furthermore, the two first contact arms belonging to one arm are separated from each other at one end away from the contact portion, and a movable part integrally connects the two nearest first contact arms of the two adjacent arms. Viewed along the second direction, each movable part partially shields the differential signal terminal pair. When the docking element abuts the contact portion, the movable part is abutted by the conductive pad of the docking element, and the movable part is displaced in the opposite direction of the docking direction.

[0007] Furthermore, each movable part includes two inclined sections extending toward each other towards the differential signal terminal pair and a connecting section integrally connecting the two inclined sections. The inclined sections are integrally connected to the corresponding first contact arms. Two first fingers extend from the two inclined sections toward each other in a direction away from the differential signal terminal pair for abutting the mating element. A second finger extends from the connecting section for abutting the corresponding element in the opposite direction of the mating direction.

[0008] Furthermore, along the first direction, there is a first width between the two outermost points of the two first contact arms that are opposite to each other, and there is a second width between the two outermost points of the two second contact arms that are opposite to each other; along the first direction, the maximum width of the contact portion is not less than the maximum value of the first width, and the maximum width of the contact portion is not less than the maximum value of the second width.

[0009] Furthermore, the grounding component also includes a base plate, with the arm integrally connected to the base plate. The base plate includes two plate surfaces arranged opposite each other along the mating direction. Along the first direction, two shielding plates located on both sides of a differential signal terminal pair are integrally connected to both sides of a main body. The main body is provided with two connecting portions spaced apart along the first direction and a slot located between the connecting portions. The slot penetrates the main body along the second direction, and the connecting portions contact the plate surfaces of the grounding component along the mating direction. Each differential signal terminal pair includes two signal terminals, and each signal terminal has a conductive portion for contacting the mating element. Along the second direction, the main body partially shields the differential signal terminal pair. Along the second direction, the grounding component has a groove recessed away from the differential signal terminal pair. Viewed along the mating direction, the groove is located between the two connecting portions. During the mating process between the electrical connector and the mating element, the slot and groove allow for the displacement of the signal terminals toward the main body.

[0010] Another technical solution is: An electrical connector, characterized in that it comprises: a row of differential signal terminal pairs arranged in a left-right direction; a plurality of shielding members arranged in a left-right direction, each shielding member including a main body and two shielding plates spaced apart in a left-right direction, the two shielding plates being integrally connected to the main body, thereby forming a shielding cavity between the main body and the two shielding plates, a differential signal terminal pair being housed in the shielding cavity; and a grounding member having a plurality of arms arranged in a left-right direction, one arm being located directly below two shielding plates between two adjacent shielding cavities, the arm including two first contact arms spaced apart in a left-right direction, and a grounding member having a plurality of arms arranged in a left-right direction. The device comprises two second contact arms spaced apart, and a contact portion located between the two first contact arms and the two second contact arms in a front-back direction. The contact portion is integrally connected to the two first contact arms and the two second contact arms. The contact portion is used to contact the docking element downwards. The ends of the two second contact arms opposite to the contact portion are connected to each other. For one arm, when the docking element abuts the contact portion upwards, the two first contact arms move away from the two second contact arms. The two first contact arms contact the two shielding plates between the two shielding cavities upwards one by one, and the two second contact arms contact the two shielding plates between the two shielding cavities upwards one by one.

[0011] Furthermore, the grounding component includes multiple movable parts. One movable part is located between the two arms that are closest to each other on the left and right sides, and the movable part is integrally connected to the two first contact arms that are closest to each other on the two arms. In the front-back direction, one movable part covers a portion of a differential signal terminal pair, and the movable part bends and extends toward the differential signal terminal pair to form a curved shape. When the docking element abuts against the contact part of the arm upward, it drives the movable part to move upward.

[0012] Furthermore, the electrical connector includes two rows of differential signal terminal pairs arranged back-to-back. Each differential signal terminal pair in each row is housed within the shielding cavity of a shielding member. Each differential signal terminal pair in the two rows includes two signal terminals, and each signal terminal includes a conductive portion. A cascading member is disposed between the two rows of differential signal terminal pairs and grounded to the two rows of shielding members. The grounding member includes a base plate fixed on the cascading member, extending forward and backward from the base plate to form two rows of arms. A mating element abuts upward against the contact portions of the two rows of arms and the conductive portions of the two rows of differential signal terminal pairs, causing the first contact arms of the two rows of arms to move in opposite directions along the front-back direction, and the conductive portions of the two rows of differential signal terminal pairs to move in opposite directions along the front-back direction.

[0013] Furthermore, the two first contact arms belonging to one arm are separated from each other at one end away from the contact portion. A movable part integrally connects the two closest first contact arms of the two adjacent arms. Viewed in the front-back direction, each movable part shields a portion of the differential signal terminal pair. Each movable part includes two inclined segments extending toward each other towards the differential signal terminal pair and a connecting segment integrally connecting the two inclined segments. The inclined segments integrally connect to the corresponding first contact arms. Two first fingers extend from the two inclined segments toward each other in a direction away from the differential signal terminal pair for downward contact with the mating element. A second finger extends from the connecting segment for upward contact with the corresponding element.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Along the first direction, two shielding plates are located between the two closest differential signal terminal pairs, allowing the two shielding plates to work together to shield noise between the two differential signal terminal pairs. A grounding component has an arm corresponding to the two shielding plates. The arm includes two first contact arms, two second contact arms, and a contact portion located along the second direction between the two first contact arms and the two second contact arms. The contact portion integrally connects the two first contact arms and the two second contact arms, with the two first contact arms and the two second contact arms spaced apart along the first direction. This allows each first contact arm and each second contact arm to be relatively free, preventing excessive restraint between the two first contact arms and the two second contact arms. The arm is positioned on the side of the two shielding plates facing the mating element. Therefore, for one arm, when the contact portion contacts the mating element, the two first contact arms contact the two shielding plates one by one, and the two second contact arms... Each of the two shielding plates is contacted individually, ensuring that the contact between one first contact arm and one shielding plate is not affected by the contact between the other first contact arm and the other shielding plate, and the contact between one second contact arm and one shielding plate is not affected by the contact between the other second contact arm and the other shielding plate. This makes the contact between the arm and the two shielding plates relatively stable, thereby ensuring the stability of the ground return path between the arm and the two shielding plates. Furthermore, the contact portion integrally connects the two first contact arms and the two second contact arms, allowing the ground return current from the shielding plate to the grounding component to flow out along the shorter path of shielding plate-first contact arm-contact portion or shielding plate-second contact arm-contact portion to the mating element. In other words, the intersection and connection point of the two first arms and the two second arms serves as the contact portion of the mating element. This means that the ground return current from the shielding plate to the grounding component can flow out via a shorter path, which helps to suppress the resonance of the electrical connector and improve the shielding performance of the electrical connector. Attached Figure Description

[0015] Figure 1 This is an exploded perspective view of the docking element, frame, and electrical connector according to the first embodiment of the present invention; Figure 2 for Figure 1 A 3D view of the electrical connector in the image; Figure 3 for Figure 2 Enlarged view at point A; Figure 4 for Figure 2 Partial exploded view of the CEC connector; Figure 5 for Figure 4 Enlarged view at point B; Figure 6 for Figure 2 A partial bottom view of the electrical connector in the image; Figure 7 for Figure 1A partial cross-sectional view of the front and rear directions of the mating front edge of the electrical connector and mating element; Figure 8 for Figure 1 A partial cross-sectional view along the front-to-back direction after the electrical connector and mating element are mated; Figure 9 This is a perspective view of the electrical connector according to the second embodiment of the present invention; Figure 10 for Figure 9 Enlarged view at point C; Figure 11 for Figure 9 Partial exploded view of the CEC connector; Figure 12 for Figure 11 Enlarged view at point D; Figure 13 for Figure 9 A partial bottom view of the electrical connector in the image; Figure 14 for Figure 9 A partial cross-sectional view of the front and rear directions of the mating front edge of the electrical connector and mating element; Figure 15 for Figure 9 A partial cross-sectional view along the front-to-back direction after the electrical connector is mated with the mating element.

[0016] Explanation of reference numerals in the attached figures: Locking mechanism 1 Casing 2 Differential signal terminal pair 3 Signal terminal 31 Flexible abutment arm 311 Conductor 3111 Free end 3112 Shielding component 4 Shielding plate 41 First contact section 411 Second contact section 412 Protrusion 413 Reception tank 414 Cardholder 415 Main body 42 Slotting 421 Continuous material section 422 Cutting surface 4221 Shielding cavity 43 Grounding component 5 Substrate 51 511 board surface Cut edge 512 Groove 513 arm 52 First contact arm 521 Second contact arm 522 Contact Department 523 Connecting part 524 Connector 6 Conductive component 7 Fastener 8 Fixing hole 81 Activities Department 9 Inclined section 91 First finger section 911 Connecting section 92 Second finger section 921 Insulation part P First gap S1 Second gap S2 Third gap S3 Component 200 Frame F Detailed Implementation

[0017] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 15 As shown, the electrical connector 100 of the present invention defines the front-to-back direction (second direction) as the X-axis, the left-to-right direction (first direction) as the Y-axis, and the up-down direction (mating direction) as the Z-axis. Please note that the up-down and left-to-right directions of the present invention are only for better understanding of the implementation scheme of the present invention, and are not a limitation of the present invention. The electrical connector 100 involved in the present invention can be any kind of upright, horizontal, right-angle connector, etc.

[0019] Figures 1 to 8 The first embodiment of the present invention is shown below, and the first embodiment will be described in detail below: like Figure 1As shown, in this embodiment, the electrical connector 100 is electrically connected downward to a mating element 200, and the mating element 200 is a circuit board. In order to fix the electrical connector 100 to the circuit board, a metal frame F is provided on the circuit board. The frame F is locked with the locking mechanism 1 on the electrical connector 100 to fix the electrical connector 100 to the circuit board. Of course, in some embodiments, the mating element 200 can be a mating connector, and the material and shape of the frame F can also be changed according to requirements. For example, the material can also be set as insulating plastic.

[0020] like Figures 2 to 5 As shown, the electrical connector 100 includes a housing 2, two rows of differential signal terminal pairs 3 arranged in the left-right direction housed within the housing 2, multiple shields 4, multiple insulating portions P, and a grounding member 5 disposed below the housing 2. Each differential signal terminal pair 3 is fixed in a corresponding insulating portion P, and each insulating portion P is fixed in a corresponding shield 4. For example, each differential signal terminal pair 3 is first fixed to a corresponding shield 4, and then molten insulating plastic is injected into the corresponding shield 4 to form an insulating portion P, so that the insulating portion P covers and fixes the corresponding differential signal terminal pair 3 while also being fixed to the corresponding shield 4.

[0021] like Figure 4 and Figure 5 As shown, each differential signal terminal pair 3 consists of two signal terminals 31. Each signal terminal 31 has a bent elastic abutment arm 311. Each elastic abutment arm 311 includes a conductive portion 3111 for downward abutting the mating element 200 and a free end 3112 formed by bending from the conductive portion 3111. When the electrical connector 100 is electrically connected to the mating element 200, the free end 3112 abuts upward against a portion of the elastic abutment arm 311, so that the elastic abutment arm 311 forms a dual current path. In this embodiment, the other end of each signal terminal 31 opposite to the conductive portion 3111 is used to connect a cable (not shown). Of course, in other embodiments, it can also be connected to another circuit board or other components.

[0022] like Figures 5 to 7As shown, each differential signal terminal pair 3 in each row is housed within a corresponding shield 4, thereby being shielded by the shield 4. Each shield 4 includes two shielding plates 41 spaced apart from each other and a main body 42 integrally connecting the two shielding plates 41. The two shielding plates 41 and the main body 42 of each shield 4 together form a shielding cavity 43. A differential signal terminal pair 3 should be located within a shielding cavity 43. Along the left-right direction, there is a third gap S3 between the two shielding plates 41 between every two closest differential signal terminal pairs 3 in each row. The lower end of the shielding plate 41 of each shield 4 is provided with... There is a first abutting part 411, a second abutting part 412, and a protrusion 413 located between the first abutting part 411 and the second abutting part 412. The protrusion 413 extends downward beyond the first abutting part 411 and the second abutting part 412. The main body part 42 of each shielding member 4 includes a slot 421 and two connecting parts 422 located on the left and right sides of the slot 421. The slot 421 penetrates the main body part 42 downward and forward and backward. Each connecting part 422 has a downward-facing cutting surface 4221. The cutting surface 4221 is the surface formed by cutting off the strip attached to the shielding member 4 during the manufacturing of the shielding member 4.

[0023] like Figures 4 to 6 As shown, the grounding member 5 includes a base plate 51 and a plurality of arm portions 52 extending from the base plate 51. The base plate 51 includes upper and lower plate surfaces 511 and a cut edge 512 connecting the two plate surfaces 511. The plate surface 511 facing the main body portion 42 of the shielding member 4 contacts the cutting surface 4221 of the connecting portion 422. Specifically, at the cutting surface 4221, the base plate 51 of the grounding member 5 and the connecting portion 422 are fixed together by laser spot welding to achieve a stable grounding connection. A groove 513 is recessed in the cutting edge 512 facing a differential signal terminal pair 3 in a direction away from the differential signal terminal pair 3. In the left-right direction, the groove 513 is located between the two connecting portions 422 of a main body portion 42.

[0024] like Figure 3 and Figure 4 As shown, the electrical connector 100 also includes a serial connector 6, which is disposed between the two rows of differential signal terminal pairs 3 and grounded to the two rows of shielding members 4. The base plate 51 of the grounding member 5 is fixed on the serial connector 6, for example by laser spot welding.

[0025] like Figures 5 to 7As shown, any arm 52 is located below the corresponding two shielding plates 41. The two shielding plates 41 are located between the two closest differential signal terminal pairs 3 in each row. Each arm 52 includes two first contact arms 521 spaced apart from each other, two second contact arms 522 spaced apart from each other from each other, a contact portion 523 located between the two first contact arms 521 and the two second contact arms 522, and a connecting portion 524 located on the side of the two second contact arms 522 opposite to the contact portion 523. Along the front-back direction, one end of the connecting portion 524 is integrally connected to the two second contact portions 523, and the other end is integrally connected to... The substrate 51 is connected to the contact portion 523, which is used to contact the docking element 200 downward. The front and rear ends of the contact portion 523 are integrally connected to two first contact arms 521 and two second contact arms 522, respectively. In the front-rear direction, one end of the two first contact arms 521 is connected to each other through the contact portion 523, and the other end is separated from each other. One end of the two second contact arms 522 is connected to each other through the contact portion 523, and the other end is connected to each other through the connecting portion 524. Of course, in other embodiments, the connecting portion 524 may not be provided, that is, the other end of the two second contact arms 522 is directly connected to each other through the substrate 51.

[0026] like Figure 5 and Figure 6 As shown, each first contact arm 521 gradually narrows in the direction away from the contact portion 523, and each second contact arm 522 gradually narrows in the direction closer to the contact portion 523. In the left-right direction, there is a first gap S1 between the two first contact arms 521 of each arm portion 52, and the first gap S1 gradually widens in the direction away from the contact portion 523. There is a second gap S2 between the two second contact arms 522 of each arm portion 52, and the second gap S2 gradually widens in the direction closer to the contact portion 523. In the left-right direction, the minimum width of the first gap S1 is greater than the third gap S3, and the minimum width of the second gap S2 is also greater than the third gap S3. Furthermore, in the left-right direction, there is a first width between the two outermost points of the two first contact arms 521 of each arm portion 52 that are opposite to each other, and there is a second width between the two outermost points of the two second contact arms 522 of each arm portion 52 that are opposite to each other. The maximum width of the contact portion 523 in the left-right direction is not less than the maximum value of the first width and not less than the maximum value of the second width.

[0027] like Figure 1 , Figure 7 as well as Figure 8As shown, when the electrical connector 100 is electrically connected to the mating element 200, the electrical connector 100 abuts downward against the mating element 200, causing the mating element 200 to abut upward against the contact portion 523. The contact portion 523 will move upward and continue to abut against the mating element 200 to maintain electrical connection. The two first contact arms 521 abut upward against the two shielding plates 41 respectively, and the two second contact arms 522 abut upward against the two shielding plates 41 respectively. Specifically, the first contact arms 521 abut upward against the first abutting portion 411, and the second contact arms 522 abut upward against the first abutting portion 411. The second contact portion 412 abuts, and the contact portion 523 is located between the docking element 200 and the protrusion 413, with the contact portion 523 and the protrusion 413 being spaced vertically apart. Of course, in some other embodiments, the protrusion 413 can also contact the contact portion 523. The conductive portion 3111 of the signal terminal 31 is also abutted upward by the docking element 200, causing the signal terminal 31 to slide towards the main body portion 42. During the sliding process, it maintains contact with the docking element 200. The slot 421 and the groove 513 allow the signal terminal 31 to move towards the main body portion 42.

[0028] like Figures 9 to 15 The following is a detailed description of the second embodiment of the present invention: like Figures 9 to 12 As shown, the electrical connector 100 includes a housing 2, two rows of differential signal terminal pairs 3 arranged in the left-right direction housed within the housing 2, multiple shields 4, multiple insulating portions P, and a grounding member 5 disposed below the housing 2. Each differential signal terminal pair 3 is fixed in a corresponding insulating portion P, and each insulating portion P is fixed in a corresponding shield 4. For example, each differential signal terminal pair 3 is first fixed to a corresponding shield 4, and then molten insulating plastic is injected into the corresponding shield 4 to form an insulating portion P, so that the insulating portion P covers and fixes the corresponding differential signal terminal pair 3 while also being fixed to the corresponding shield 4.

[0029] like Figure 11 and Figure 12 As shown, each differential signal terminal pair 3 consists of two signal terminals 31. Each signal terminal 31 has a bent elastic abutment arm 311. Each elastic abutment arm 311 includes a conductive portion 3111 for downward abutting the mating element 200 and a free end 3112 formed by bending from the conductive portion 3111. When the electrical connector 100 is electrically connected to the mating element 200, the free end 3112 abuts upward against a portion of the elastic abutment arm 311, so that the elastic abutment arm 311 forms a dual current path. In this embodiment, the other end of each signal terminal 31 opposite to the conductive portion 3111 is used to connect a cable (not shown). Of course, in other embodiments, it can also connect a circuit board or other components.

[0030] like Figures 12 to 14 As shown, each differential signal terminal pair 3 in each row is housed within a corresponding shield 4, thereby being shielded by the shield 4. Each shield 4 includes two shielding plates 41 spaced apart from each other and a main body 42 integrally connecting the two shielding plates 41. The two shielding plates 41 and the main body 42 of each shield 4 together form a shielding cavity 43. A differential signal terminal pair 3 should be located within a shielding cavity 43. Along the left-right direction, there is a third gap S3 between the two shielding plates 41 between every two closest differential signal terminal pairs 3 in each row. The lower end of the shielding plate 41 of each shield 4 is provided with a first abutment portion 411, a second abutment portion 412, and a contact portion located between the first abutment portion 411 and the second abutment portion 412. The protrusion 413 between 2, the first abutting part 411 and the protrusion 413 are both arranged downward beyond the second abutting part 412, and the first abutting part 411 and the protrusion 413 are arranged flush. Of course, the positional relationship of the first abutting part 411, the second abutting part 412 and the protrusion 413 can also be set as in the first embodiment. In this embodiment, it will not be described again. The main body 42 of each shielding member 4 includes a slot 421 and two connecting parts 422 located on the left and right sides of the slot 421. The slot 421 penetrates the main body 42 downward and forward and backward. Each connecting part 422 has a downward-facing material surface 4221. The cutting surface 4221 is the surface formed when the material strip connected to the shielding member 4 is cut off during the manufacturing of the shielding member 4.

[0031] The shielding member 4 in this embodiment differs from the shielding member 4 in the first embodiment. In this embodiment, each of the two shielding plates 41 of a shielding member 4 is provided with a receiving groove 414 for a fixing member 8 to be installed therein. The fixing member 8 is provided with a fixing hole 81, and the material of the fixing member 8 is insulating plastic. Of course, it can also be a conductive material, such as electroplated plastic, conductive plastic, conductive metal, etc. Each shielding member 4 in the two rows of shielding members 4 is provided with a retaining part 415 on one shielding plate 41. The retaining part 415 is fixed in the fixing hole 81, thereby fixing the two rows of shielding members 4 to the fixing member 8, and then installing them together into the housing 2. Please refer to Figure 14 Specifically, the four shielding plates 41 of every two shielding components 4 are aligned front to back, and one of the two shielding plates 41 that are aligned front to back has a retaining part 415, while the other does not. One of the other two arm portions 52 of the four shielding plates 41 that are aligned front to back has a retaining part 415, while the other does not. The two shielding plates 41 with retaining parts 415 belong to the two shielding components 4 respectively.

[0032] like Figures 11 to 13As shown, the grounding member 5 includes a substrate 51 and two rows of arms 52 extending forward and backward from the substrate 51, each row of arms 52 including multiple arms 52; as Figure 12 As shown, in this embodiment, the substrate 51 is divided into multiple parts spaced apart from left to right. Between each pair of individual parts, multiple structures for abutting the docking element 200 are provided, and the structures between each pair of parts extend in opposite directions to form movable ends. The opposite directions refer to one to the left and the other to the right. The substrate 51 includes upper and lower plate surfaces 511 and a cut edge 512 connecting the two plate surfaces 511. The plate surface 511 facing the main body 42 of the shielding member 4 contacts the cutting surface 4221 of the connecting part 422. Specifically, at the cutting surface 4221, the substrate 51 of the grounding member 5 and the connecting part 422 are fixed together by laser spot welding to achieve a stable grounding connection.

[0033] like Figure 10 and Figure 11 As shown, the electrical connector 100 also includes a serial connector 6, which is disposed between the two rows of differential signal terminal pairs 3 and grounded to the two rows of shielding members 4. The base plate 51 of the grounding member 5 is fixed on the serial connector 6, for example by laser spot welding.

[0034] like Figures 12 to 14 As shown, any arm 52 is located below the corresponding two shielding plates 41. The two shielding plates 41 are located between the two closest differential signal terminal pairs 3 in each row. Each arm 52 includes two first contact arms 521 spaced apart from each other, two second contact arms 522 spaced apart from each other from each other, a contact portion 523 located between the two first contact arms 521 and the two second contact arms 522, and a connecting portion 524 located on the side of the two second contact arms 522 opposite to the contact portion 523. Along the front-back direction, one end of the connecting portion 524 is integrally connected to the two second contact portions 523, and the other end is integrally connected to... The substrate 51 is connected to the contact portion 523, which is used to contact the docking element 200 downward. The front and rear ends of the contact portion 523 are integrally connected to two first contact arms 521 and two second contact arms 522, respectively. In the front-rear direction, one end of the two first contact arms 521 is connected to each other through the contact portion 523, and the other end is separated from each other. One end of the two second contact arms 522 is connected to each other through the contact portion 523, and the other end is connected to each other through the connecting portion 524. Of course, in other embodiments, the connecting portion 524 may not be provided, that is, the other end of the two second contact arms 522 is directly connected to each other through the substrate 51.

[0035] like Figure 12 and Figure 13As shown, the grounding component 5 also includes multiple movable parts 9. In the same row of arms 52, one movable part 9 is integrally connected to the two nearest first contact arms 521 of two adjacent arms 52. Viewed in the front-back direction, each movable part 9 partially shields the differential signal terminal pair 3. When the docking element 200 abuts against the contact part 523, the movable part 9 is abutted by the docking element 200, causing the movable part 9 to be grounded and connected to the docking element 200, and the movable part 9 is displaced upward. Each movable part 9 includes two inclined sections 91 and a connecting section 92 integrally connecting the two inclined sections 91. The two inclined sections 91 extend towards each other towards a differential signal terminal pair 3 shielded by the movable part 9, making the movable part 9 curved. The two inclined sections 91 respectively The two first contact arms 521 are integrally connected. Two first fingers 911 extend from the two inclined sections 91 toward each other in a direction away from the differential signal terminal pair 3, and are used to abut against the conductive pad (not shown) of the mating element 200. A second finger 921 extends from the connecting section 92 and is used to abut against the corresponding element upward. In this embodiment, the corresponding element is a conductive element 7 provided in the electrical connector 100. Of course, in other embodiments, it can also be other non-conductive structures. In this embodiment, for one arm 52, the ends of the two first contact arms 521 that are away from the contact portion 523 are separated from each other. Of course, in other embodiments, the ends of the two first contact arms 521 that are away from the contact portion 523 can also be set to be connected to each other.

[0036] The curved shape of the movable part 9 can also be set to retain only the shape that ensures the elasticity of the arm 52, such as a wave shape with multiple peaks and troughs or other shapes that are easy to conceive of by those skilled in the art. Here, "easy to conceive of" means that different shapes of the movable part 9 can be designed in order to ensure the elasticity of the arm 52.

[0037] like Figure 11 and Figure 12 As shown, the first contact arms 521 of either the leftmost or rightmost arm 52 of the electrical connector 100 are interconnected for connecting the material strip, and of the two first contact arms 521 in either the leftmost or rightmost arm 52, the first contact arm 521 closer to the left or right is not connected to the movable part 9.

[0038] like Figure 12 and Figure 13As shown, each first contact arm 521 is configured to gradually narrow and then widen in the direction away from the contact portion 523, and each second contact arm 522 is configured to gradually narrow and then widen in the direction closer to the contact portion 523. In the left-right direction, there is a first gap S1 between the two first contact arms 521 of each arm portion 52, and the first gap S1 is configured to gradually widen and then narrow in the direction away from the contact portion 523. There is a second gap S2 between the two second contact arms 522 of each arm portion 52, and the second gap S2 is configured to gradually widen and then narrow in the direction closer to the contact portion 523. In the left-right direction, the minimum width of the first gap S1 is greater than the third gap S3, and the minimum width of the second gap S2 is also greater than the third gap S3. Furthermore, in the left-right direction, there is a first width between the two outermost points of the two first contact arms 521 of each arm portion 52 that are opposite to each other, and there is a second width between the two outermost points of the two second contact arms 522 of each arm portion 52 that are opposite to each other. The maximum width of the contact portion 523 in the left-right direction is not less than the maximum value of the first width and not less than the maximum value of the second width.

[0039] like Figure 14 as well as Figure 15 As shown, when the electrical connector 100 is electrically connected to the mating element 200, the electrical connector 100 abuts downward against the mating element 200, causing the mating element 200 to abut upward against the contact portion 523. This causes the contact portion 523 to move upward and continuously abut against the mating element 200 to maintain an electrical connection. Meanwhile, the first contact arms 521 of the two rows of arms 52 move in opposite directions along the front-back direction. That is, under the upward abutting action of the mating element 200, the first contact arms 521 of one row of arms 52 move forward, and the contact arms of the other row of arms 52 move backward. The two first contact arms 521 abut upward against the two shielding plates 41 respectively, and the two second contact arms 522 abut upward against the two shielding plates 41 respectively. Specifically, the first contact arm 521 abuts upward against the first abutting portion 411, and the second contact arm 522 abuts upward against the second abutting portion 41. 2. The contact portion 523 is located between the docking element 200 and the protrusion 413, and the contact portion 523 and the protrusion 413 are arranged vertically at intervals. Of course, in some other embodiments, the protrusion 413 can also contact the contact portion 523. The conductive portion 3111 of the signal terminal 31 is also abutted upward by the docking element 200, so that the elastic abutting arms 311 of the signal terminals 31 of the two rows of differential signal terminal pairs 3 with front and rear intervals slide in opposite directions. In this embodiment, the opposite direction means that one is forward and the other is backward, and the abutment with the docking element 200 is maintained during the sliding process. In fact, each signal terminal 31 slides towards the main body portion 42 of the shielding member 4, and the abutment with the docking element 200 is maintained during the sliding process. The slot 421 is used to allow the displacement of the signal terminal 31 towards the main body portion 42 of the shielding member 4.

[0040] While the first finger 911 abuts downward against the docking element 200, it also abuts upward against the corresponding element, namely the conductive element 7. For example, the free end of the first finger 911 abuts against the conductive element 7. While the second finger 921 abuts upward against the corresponding element (i.e. the conductive element 7), it also abuts downward against the docking element 200. For example, the free end of the second finger 921 abuts against the docking element 200.

[0041] Please note that the docking element 200 in this embodiment has the same structure as the docking element 200 in the first embodiment, and will not be described again here.

[0042] In summary, the present invention has the following beneficial effects: 1. Along the first direction, two shielding plates 41 are located between the two closest differential signal terminal pairs 3, so that the two shielding plates 41 can cooperate to shield the noise between the two differential signal terminal pairs 3. The grounding member 5 is provided with an arm portion 52 corresponding to the two shielding plates 41. The arm portion 52 includes two first contact arms 521, two second contact arms 522, and a contact portion 523 located along the second direction between the two first contact arms 521 and the two second contact arms 522. The contact portion 523 integrally connects the two first contact arms 521 and the two second contact arms 522, and the two first contact arms 523 are... One contact arm 521 is spaced apart along a first direction, and two second contact arms 522 are spaced apart along the first direction, so that each first contact arm 521 and each second contact arm 522 is relatively free, and there is no excessive restraint between the two first contact arms 521 and the two second contact arms 522. The arm portion 52 is located on the side of the two shielding plates 41 facing the docking element 200. Therefore, for one arm portion 52, when the contact portion 523 contacts the docking element 200, the two first contact arms 521 contact the two shielding plates 41 one by one, and the two second contact arms 522... Each of the two shielding plates 41 is contacted individually, ensuring that the contact between one first contact arm 521 and one shielding plate 41 is not affected by the contact between the other first contact arm 521 and another shielding plate 41, and the contact between one second contact arm 522 and one shielding plate 41 is not affected by the contact between the other second contact arm 522 and another shielding plate 41. This makes the contact between the arm 52 and the two shielding plates 41 relatively stable, thereby ensuring the stability of the grounding return path between the arm 52 and the two shielding plates 41. Furthermore, the contact portion 523 integrally connects the two first contact arms 521 and the two second contact arms 522. The contact arm 522 allows the ground return current from the shield 41 to the grounding member 5 to flow out to the mating element 200 along a shorter path, either shield 41-first contact arm 521-contact portion 523 or shield 41-second contact arm 522-contact portion 523. In other words, the intersection of the two first arms 52 and the two second arms 52 serves as the contact portion 523 of the mating element 200. This means that the ground return current from the shield 41 to the grounding member 5 can flow out via a shorter path, which helps to suppress the resonance of the electrical connector 100 and improve the shielding performance of the electrical connector 100.

[0043] 2. When the contact portion 523 contacts the mating element 200, there may be a large gap between the contact portion 523 and the shielding plate 41, which may cause noise interference between the two differential signal terminal pairs 3 due to the gap. In order to solve the above problem, the present invention provides a second abutment portion 412, a protrusion 413, and a first abutment portion 411 in sequence on the side of the shielding plate 41 facing the mating element 200. Along the mating direction, the protrusion 413 is located closer to the mating element 200 than the first abutment portion 411 and the second abutment portion 412. The contact portion 523 is located between the mating element 200 and the protrusion 413, so that the protrusion 413 can shield the noise interference caused by the gap. When the electrical connector 100 is electrically connected to the mating element 200, the protrusion 413 and the contact portion 523 are spaced apart, so that the protrusion 413 will not affect the elastic abutment between the contact portion 523 and the mating element 200.

[0044] 3. Along the first direction, the maximum width of the contact portion 523 is not less than the maximum value of the first width, and the maximum width of the contact portion 523 is not less than the maximum value of the second width, so that the current flowing from the two first contact arms 521 and the two second contact arms 522 to the contact portion 523 can flow out quickly through the wider contact portion 523, avoiding the accumulation of grounding current on the first contact arms 521 and the second contact arms 522, which would cause unwanted noise and affect the signal transmission of the differential signal terminal pair 3.

[0045] 4. During the process of the connector mating with the mating element 200 along the mating direction, the slot 421 and groove 513 allow the guide part 3111 to move towards the main body part 42, so that the slot 421 and groove 513 can allow the differential signal terminal pair 3 to make way, avoiding short circuit between the differential signal terminal pair 3 and the grounding part 5 and the main body part 42.

[0046] 5. Multiple movable parts 9 are respectively connected to each of the two closest first contact arms 521 so that the flatness between the multiple arms 52 is controlled and it is not easy to break. Furthermore, the multiple arms 52 are integrally connected by multiple movable parts 9. Due to the curved shape of the movable parts 9, the elasticity of the arms 52 is guaranteed.

[0047] 6. The first contact arms 521 of the two rows of arms 52 slide in opposite directions along the front-back direction, and the elastic abutment arms 311 of the two rows of differential signal terminal pairs 3 slide in opposite directions along the front-back direction. This makes the bias force generated by the sliding between the two rows of arms 52 of the grounding member 5 cancel each other out during the electrical connection between the electrical connector 100 and the mating element 200, and the bias force generated by the sliding between the elastic abutment arms 311 of the two rows of differential signal terminal pairs 3 cancel each other out. This prevents the electrical connector 100 from shifting as a whole under the action of the bias force and making the contact with the mating element 200 unstable.

[0048] 7. Along the second direction, the two movable parts 9 respectively shield the partial areas of the two differential signal terminal pairs 3, and the movable parts 9 are abutted by the docking element 200 to ground and conduct to the ground of the docking element 200, effectively preventing the leakage of signal noise of the two differential signal terminal pairs 3 along the second direction. When the docking element 200 abuts the contact part 523, the movable parts 9 are abutted by the docking element 200 to ground and conduct to the ground of the movable parts 9. The movable parts 9 are displaced upward, so that the movable parts 9, which are movable and integrally connected with the first contact arm 521, can ensure the elasticity of the arm part 52, so that the arm part 52 and the docking element 200 form a stable electrical connection.

[0049] 8. The tilting section 91 enables the movable part 9 to more effectively prevent the leakage of signal noise from the differential signal terminal to the 3 signal, and also provides better elasticity for the arm 52. The first finger 911 and the second finger 921 enable the movable part 9 to be clamped between the corresponding element and the docking element 200, so that it can stably abut against the docking element 200 while ensuring stable contact between the two first contact arms 521 and the two shielding plates 41.

[0050] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector for electrically connecting to a mating element along a mating direction, characterized in that, include: A row of differential signal terminal pairs is arranged along the first direction; Two shielding plates are provided between the two closest differential signal terminal pairs along the first direction; The grounding component has an arm corresponding to the two shielding plates. The arm is located on the side of the two shielding plates facing the docking element. The arm includes two first contact arms spaced apart along a first direction, two second contact arms spaced apart along the first direction, and a contact portion located between the two first contact arms and the two second contact arms along a second direction. The contact portion is integrally connected to the two first contact arms and the two second contact arms. The contact portion is used to contact the docking element along the docking direction. In the second direction, the ends of the two second contact arms facing away from the contact portion are connected to each other. The first direction, the second direction, and the docking direction are set to intersect in pairs; For one arm, when the docking element abuts the contact part, the two first contact arms move away from the two second contact arms, and the two first contact arms contact the two shielding plates one by one, and the two second contact arms contact the two shielding plates one by one.

2. The electrical connector as described in claim 1, characterized in that: From the first contact arm to the second contact arm, each shielding plate has a first abutment, a protrusion, and a second abutment sequentially arranged on the side facing the mating element. Along the mating direction, the protrusion is arranged closer to the mating element than the first abutment and the second abutment. When the electrical connector is electrically connected to the mating element, the first abutment abuts against the first contact arm, the second abutment abuts against the second contact arm, the contact portion is located between the mating element and the protrusion, and along the mating direction, the protrusion and the contact portion are spaced apart.

3. The electrical connector as described in claim 1, characterized in that: Two first contact arms belonging to one arm are separated from each other at one end away from the contact portion. A movable part integrally connects the two nearest first contact arms of the two adjacent arms. Viewed along the second direction, each movable part partially shields the differential signal terminal pair. When the mating element abuts the contact portion, the movable part is abutted by the conductive pad of the mating element, and the movable part is displaced in the opposite direction of the mating direction.

4. The electrical connector as described in claim 2, characterized in that: Each movable part includes two inclined sections extending toward each other towards the differential signal terminal pair and a connecting section integrally connecting the two inclined sections. The inclined sections are integrally connected to corresponding first contact arms. Two first fingers extend from the two inclined sections toward each other in a direction away from the differential signal terminal pair for abutting against the mating element. A second finger extends from the connecting section for abutting against the corresponding element in the opposite direction of the mating direction.

5. The electrical connector as described in claim 1, characterized in that: Along the first direction, there is a first width between the two outermost sides of the two first contact arms that are opposite to each other, and there is a second width between the two outermost sides of the two second contact arms that are opposite to each other. Along the first direction, the maximum width of the contact portion is not less than the maximum value of the first width, and the maximum width of the contact portion is not less than the maximum value of the second width.

6. The electrical connector as claimed in claim 1, characterized in that: The grounding component also includes a base plate, with the arm integrally connected to the base plate. The base plate includes two plate surfaces arranged opposite each other along the mating direction. Along the first direction, two shielding plates located on both sides of a differential signal terminal pair are integrally connected to both sides of a main body. The main body is provided with two connecting parts spaced apart along the first direction and a slot located between the connecting parts. The slot penetrates the main body along the second direction, and the connecting parts contact the plate surfaces of the grounding component along the mating direction. Each differential signal terminal pair includes two signal terminals, and each signal terminal has a conductive part for contacting the mating element. Along the second direction, the main body partially shields the differential signal terminal pair. Along the second direction, the grounding component has a groove recessed away from the differential signal terminal pair. Viewed along the mating direction, the groove is located between the two connecting parts. During the mating process between the electrical connector and the mating element, the slot and groove allow for the displacement of the signal terminals toward the main body.

7. An electrical connector, characterized in that, include: A row of differential signal terminal pairs is arranged in the left-right direction; Multiple shielding components are arranged in the left-right direction. Each shielding component includes a main body and two shielding plates spaced apart in the left-right direction. The two shielding plates are integrally connected to the main body, thereby forming a shielding cavity between the main body and the two shielding plates. A differential signal terminal pair is housed in the shielding cavity. The grounding component has multiple arms arranged in the left-right direction. One arm is located directly below two shielding plates between two adjacent shielding cavities. The arm includes two first contact arms spaced apart in the left-right direction, two second contact arms spaced apart in the left-right direction, and a contact portion located between the two first contact arms and the two second contact arms in the front-back direction. The contact portion is integrally connected to the two first contact arms and the two second contact arms. The contact portion is used to contact the mating element downwards. The ends of the two second contact arms opposite to the contact portion are connected to each other. For one arm, when the docking element abuts the contact part upward, the two first contact arms move away from the two second contact arms. The two first contact arms contact the two shielding plates between the two shielding cavities one by one, and the two second contact arms contact the two shielding plates between the two shielding cavities one by one.

8. The electrical connector as claimed in claim 7, characterized in that: The grounding component includes multiple movable parts. One movable part is located between the two arms that are closest to each other on the left and right sides. The movable part is integrally connected to the two first contact arms that are closest to each other on the two arms. In the front-back direction, one movable part covers a portion of a differential signal terminal pair, and the movable part bends and extends toward the differential signal terminal pair to form a curved shape. When the docking element abuts against the contact part of the arm upward, it drives the movable part to move upward.

9. The electrical connector as claimed in claim 7, characterized in that: The electrical connector includes two rows of differential signal terminal pairs arranged back-to-back. Each differential signal terminal pair in each row is housed within the shielding cavity of a shield. Each differential signal terminal pair in the two rows includes two signal terminals, each signal terminal including a conductive portion. A cascading member is disposed between the two rows of differential signal terminal pairs and grounded to the two rows of shields. The grounding member includes a base plate fixed on the cascading member, extending forward and backward from the base plate to form two rows of arms. A mating element abuts upward against the contact portions of the two rows of arms and the conductive portions of the two rows of differential signal terminal pairs, causing the first contact arms of the two rows of arms to move in opposite directions along the front-to-back direction, and the conductive portions of the two rows of differential signal terminal pairs to move in opposite directions along the front-to-back direction.

10. The electrical connector as claimed in claim 7, characterized in that: Two first contact arms belonging to one arm are separated from each other at one end away from the contact portion. A movable part integrally connects the two nearest first contact arms of the two adjacent arms. Viewed in the front-back direction, each movable part shields a portion of the differential signal terminal pair. Each movable part includes two inclined sections extending toward each other towards the differential signal terminal pair and a connecting section integrally connecting the two inclined sections. The inclined sections integrally connect to the corresponding first contact arms. Two first fingers extend from the two inclined sections toward each other in a direction away from the differential signal terminal pair for downward contact with the mating element. A second finger extends from the connecting section for upward contact with the corresponding element.

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