Electrical connector

Abstract

The present application provides an electrical connector, comprising: an insulating body; a conductive body; and a plurality of ground terminals and a plurality of signal terminals. A plurality of L-shaped protrusions are provided on the conductive body, and a row of L-shaped protrusions is formed between every two adjacent terminal rows. The L-shaped protrusion has a short side portion and a long side portion. The first end of the short side portion is connected to the first end of the long side portion. The short side portion extends along the column direction and is electrically connected to the corresponding ground terminal by the second end of the short side portion, and the long side portion extends along the row direction to isolate at least a part of the differential signal terminal pairs that overlap each other in the adjacent terminal rows in the column direction. Such an electrical connector can achieve good shielding of the differential signal terminal pairs to avoid crosstalk interference, and common grounding is achieved between the ground terminals, effectively improving the overall operation efficiency of the electrical connector.

Description

Technical Field

[0001] The present application relates to an electrical connector, and particularly to an electrical connector for signal transmission, which can prevent or reduce crosstalk generated during signal transmission of the electrical connector. Background Art

[0002] In an electronic or communication system, circuits and electronic modules are usually arranged on several separate printed circuit boards, and these separate printed circuit boards are interconnected by electrical connectors. The electrical connectors realize the connection between the backplane and each service daughter board. With the continuous growth of user bandwidth requirements, more and more circuits are placed in a given area of each printed circuit board and operate at higher and higher frequencies. Correspondingly, the electrical connectors between the printed circuit boards transmit data at an increasing rate, and the signal rate between the backplane and the daughter board has reached 6 Gbps, or even 10 Gbps or higher. Such high-speed and high-density connection requirements pose high demands on the electrical performance indicators of the electrical connectors, especially for the crosstalk index value.

[0003] To prevent such crosstalk, certain efforts have been made in the prior art. For example, in the patent application with the publication number CN205863449U, an electrical connector is provided. The electrical connector has conductive glue to connect the grounding terminals, and a plurality of rectangular blocks arranged in a straight line are provided between adjacent terminal rows to form a shield between two differential signal terminal pairs adjacent to the rectangular blocks. However, since the conductive glue is integrally formed with the U-shaped plastic body through secondary injection molding, due to the difference in material properties, the process is relatively complex and not conducive to mass production; and during the manufacturing and forming process of the conductive glue, limited by the space between the mold and the U-shaped plastic body, the extension degree of the straight rectangular block in the length direction cannot be increased excessively in order to enhance the shielding effect, because if the extension degree of the rectangular block in the length direction is too large, the corresponding rectangular groove in the corresponding U-shaped plastic body will be too long, thereby reducing the structural stability of the U-shaped plastic body.

[0004] In view of this, the present application proposes an electrical connector to overcome the above defects. Summary of the Invention

[0005] The technical problem to be solved by the present application is to provide an electrical connector that can prevent or reduce crosstalk generated during signal transmission of the electrical connector.

[0006] The present application provides an electrical connector, which includes: an insulating body; a conductive body positioned relative to the insulating body; and a plurality of ground terminals and a plurality of signal terminals, wherein the plurality of ground terminals and the plurality of signal terminals are connected to the insulating body in an array form. Among them, every two adjacent signal terminals along the row direction of the array form a differential signal terminal pair, and the differential signal terminal pair and the ground terminals are alternately arranged in the row direction to form a terminal row. Moreover, the differential signal terminal pairs in adjacent terminal rows are arranged such that their projections in the column direction perpendicular to the row direction at least partially overlap each other. Wherein, a plurality of L-shaped protrusions are provided on the conductive body, and the L-shaped protrusions are disposed in L-shaped notches on the insulating body, and a row of the L-shaped protrusions is formed between every two adjacent terminal rows. The L-shaped protrusion has a short side portion and a long side portion. The first end of the short side portion is connected to the first end of the long side portion. The short side portion extends along the column direction and is electrically connected to the corresponding ground terminal at the second end of the short side portion, and the long side portion extends along the row direction to isolate at least a part of the differential signal terminal pairs that at least partially overlap each other in adjacent terminal rows in the column direction. Through this specific arrangement of the L-shaped protrusions of the electrical connector, good shielding of the differential electronic pair can be achieved to avoid crosstalk interference, and a good common ground effect can be formed by connecting a plurality of ground terminals in series. At the same time, this specific distribution configuration of the L-shaped protrusions can enhance the structural stability of the corresponding insulating body.

[0007] Further, the differential signal terminal pairs of adjacent terminal rows are arranged in a staggered manner such that the first signal terminal in the differential signal terminal pair in one terminal row is arranged opposite to a ground terminal in the adjacent terminal row, and the second signal terminal in the differential signal terminal pair in the terminal row is arranged opposite to the first signal terminal in the differential signal terminal pair in the adjacent terminal row. Thus, the signal terminals opposite to each other in each terminal row form a signal terminal column along the column direction, and the long side portion of the L-shaped protrusion extends along the row direction through the region between adjacent signal terminals in the signal terminal column. By arranging the terminals of adjacent terminal rows in a staggered manner, crosstalk interference can be avoided during high-frequency transmission, better adaptation to the chip and the circuit board can be achieved, and the overall structure of the electrical connector can be made more stable.

[0008] Further, the second end of the long side portion of the L-shaped protrusion extends to a position flush with the signal terminal in the corresponding signal terminal column in the column direction. This "flush" arrangement can not only achieve good shielding of the differential signal terminal pair, but also leave enough space so that the notch on the corresponding insulating body is not too large, thereby ensuring the structural strength of the insulating body.

[0009] Furthermore, the distances between the long side portions of the L-shaped protrusions and the two adjacent terminal rows are equal respectively. Based on this, the long side portions of the L-shaped protrusions are located at the intermediate positions between the adjacent terminal rows, making the structural arrangement of the conductive body and the corresponding insulating body more uniform and stable.

[0010] Furthermore, the extension height of the L-shaped protrusion in the insertion direction perpendicular to both the row direction and the column direction is the same as the depth of the L-shaped notch. The extension height of the L-shaped protrusion in the insertion direction matches the depth of the L-shaped notch to achieve a good fit between the two and enable cooperation with other possible components through the L-shaped notch.

[0011] Furthermore, the extension directions of the long side portions of the L-shaped protrusions in two adjacent rows are opposite to those of the short side portions. The reverse arrangement of the L-shaped protrusions in adjacent rows actually depends on the staggered arrangement form of the terminals, thereby achieving good shielding in a most reasonable implementation manner.

[0012] Furthermore, the short sides of two adjacent L-shaped protrusions in the column direction extend in the same direction, and the long side portions of two adjacent L-shaped protrusions in the column direction extend in opposite directions. Further, the short side portions of two adjacent L-shaped protrusions in the row direction extend in the same direction, and the long side portions of two adjacent L-shaped protrusions in the row direction extend in the same direction; or the short side portions of two adjacent L-shaped protrusions in the row direction extend in opposite directions, and the long side portions of two adjacent L-shaped protrusions in the row direction extend in opposite directions. Such an arrangement of the L-shaped protrusions can well achieve the shielding of the differential signal terminal pairs.

[0013] Furthermore, conductive bumps extending upward are respectively provided on two opposite edges of the conductive body in the column direction, and the distance that the conductive bumps extend in the row direction is equal to the distance from the first end to the second end of the long side portion of the L-shaped protrusion. The conductive bumps are provided on both side edges to shield the differential signal terminal pairs in the corresponding rows to avoid interference with other circuit structures / chips on the circuit board. At the same time, the conductive bumps can also provide a certain interference effect when the conductive body and the insulating body are connected.

[0014] Furthermore, ribs are formed on the L-shaped notch, and the ribs form an interference fit with the L-shaped protrusion. Through this interference fit between the ribs and the L-shaped protrusion inserted into the L-shaped notch, the conductive body can be more firmly connected to the insulating body.

[0015] Further, the insulating body includes a plurality of first terminal openings and a plurality of second terminal openings. A plurality of the ground terminals respectively pass through the plurality of first terminal openings, and a plurality of the signal terminals respectively pass through the plurality of second terminal openings. Among them, the first terminal openings communicate with the L-shaped notch. Further, the conductive body includes a plurality of third terminal openings and a plurality of fourth terminal openings. A plurality of the ground terminals respectively pass through the plurality of third terminal openings and are electrically connected to the conductive body. A plurality of the differential signal terminal pairs respectively pass through the plurality of fourth terminal openings and have a gap with the conductive body. Among them, the fourth terminal opening is a rectangular structure, the length of the short side of the rectangular structure is not less than 1.6 mm, and the length of the long side adjacent to the short side is not less than 2.7 mm. Through these specific arrangements of the opening structures on the insulating body and the conductive body, it can effectively ensure the mutual contact between the conductive body and the ground terminals, and prevent the signal terminals from contacting the conductive body to cause a short circuit, thereby better improving the common ground effect and crosstalk resistance of the electrical connector. Description of the Drawings

[0016] The schematic drawings of the specification are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0017] Figure 1 is a perspective view of an electrical connector according to a first embodiment of the present disclosure;

[0018] Figure 2a is a top view of an electrical connector according to a first embodiment of the present disclosure;

[0019] Figure 2b is a top view of an electrical connector according to a first embodiment of the present disclosure, which shows another arrangement of the L-shaped protrusion;

[0020] Figure 3 is a perspective view of the conductive body of an electrical connector according to a first embodiment of the present disclosure, wherein the ground terminal is connected to the conductive body;

[0021] Figure 4 is Figure 1 a perspective view of the disassembled state of the electrical connector in;

[0022] Figure 5 is a perspective view of the conductive body of an electrical connector according to a first embodiment of the present disclosure;

[0023] Figure 6 is a bottom view of the conductive body of an electrical connector according to a first embodiment of the present disclosure;

[0024] Figure 7Is a bottom view of an insulating body of an electrical connector according to a first embodiment of the present disclosure;

[0025] Figure 8a and Figure 8b Is a partially cut-away perspective view of an insulating body of an electrical connector according to the present disclosure;

[0026] Figure 9 Is a perspective view of an electrical connector according to a second embodiment of the present disclosure.

[0027] Figure 10 Is a perspective view of a conductive body of an electrical connector according to a second embodiment of the present disclosure, wherein the conductive body is a two-piece structure. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be described in detail with reference to the accompanying drawings in the embodiments of the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0029] As Figures 1 to 4 shown, an electrical connector 1 according to a first embodiment of the present application generally includes an insulating body 11, a conductive body 12, a plurality of ground terminals 13, and a plurality of signal terminals. The conductive body 12 is positioned relative to the insulating body 11. Among them, the conductive body 12 is an integrally formed single part that is assembled and cooperated with the insulating body 11, which is simple in process, easy to mass-produce, and has good replaceability. The plurality of ground terminals 13 and the plurality of signal terminals are connected to the insulating body 11 in an array form. Among them, every two signal terminals adjacent along the row direction X of the array form a differential signal terminal pair 14. The differential signal terminal pair 14 (including a first signal terminal 14a and a second signal terminal 14b) and the ground terminal 13 are alternately arranged in the row direction X to form a terminal row. As Figure 1 shown in the non-limiting example, the array has six terminal rows and nine terminal columns. Each terminal row contains three pairs of differential signal terminal pairs 14, and three ground terminals 13 are interspersed between the differential terminal pairs 14. Moreover, the differential signal terminal pairs 14 in adjacent terminal rows are arranged such that at least part of their projections in the column direction Y perpendicular to the row direction X overlap each other.

[0030] As Figure 2a shown, a plurality of L-shaped protrusions 121 are provided on the conductive body 12. The L-shaped protrusions 121 are arranged in L-shaped notches 11a on the insulating body 11 (as Figure 7As shown in the figure, a row of L-shaped protrusions 121 is formed between every two adjacent terminal rows. Among them, the L-shaped protrusion 121 has a short side portion 121a and a long side portion 121b. The first end of the short side portion 121a is connected to the first end of the long side portion 121b. The short side portion 121a is preferably connected to the long side portion 121b at a right angle. The short side portion 121a extends along the column direction Y and is electrically connected to the corresponding ground terminal 13 by the second end of the short side portion 121a. And the long side portion 121b extends along the row direction X to isolate at least part of the differential signal terminal pairs 14 that overlap each other in the adjacent terminal rows in the column direction Y. Preferably, one of the signal terminals of the differential signal terminal pair 14 is isolated.

[0031] Through this specific arrangement of the L-shaped protrusions 121 of the electrical connector, since the purpose of the long side portion 121b extending along the row direction X is to isolate at least part of the differential signal terminal pairs 14 that overlap each other in the adjacent terminal rows in the column direction Y, therefore, in the row direction X, there can be a sufficient distance between the L-shaped notches 11a on the conductive body 12, so as to ensure the strength and structural stability of the insulating body 11. At the same time, the L-shaped protrusions 121 of the conductive body 12 can also achieve good shielding for the differential signal terminal pairs 14 adjacent in the column direction Y to avoid crosstalk interference.

[0032] As Figure 2a shown, the differential signal terminal pairs 14 of adjacent terminal rows are arranged in a staggered manner, so that the first signal terminal 14a in the differential signal terminal pair 14 in one terminal row and a ground terminal 13 in the adjacent terminal row are arranged opposite to each other. The second signal terminal 14b in the differential signal terminal pair 14 in the terminal row is arranged opposite to the first signal terminal 14a in the differential signal terminal pair 14 in the adjacent terminal row. Thus, the terminals opposite to each other in each terminal row form a signal terminal column along the column direction Y. That is to say, as Figure 2a shown, assuming that the leftmost signal terminal column is the first column signal terminal column and the rightmost signal terminal column is the ninth column signal terminal column, then in the first column signal terminal column, the first signal terminal 14a and the ground terminal are arranged alternately along the column direction Y, and in the second column signal terminal column, the second signal terminal 14b and the first signal terminal 14a are arranged alternately along the column direction Y.

[0033] By arranging the terminals of adjacent terminal rows in a staggered manner, crosstalk interference caused during high-frequency transmission can be further reduced or avoided, better adaptation to the chip and the circuit board can be achieved, and the opening areas on the insulating body can be dispersed as much as possible to reduce weak links, making the overall structure of the electrical connector more stable.

[0034] As Figure 2aAs shown, the long side portion 121b of the L-shaped protrusion 121 can extend in the row direction X through the region between adjacent signal terminals in the signal terminal row. That is to say, the long side portion 121b of the L-shaped protrusion 121 is intended to extend into the region between the second signal terminal 14b and the first signal terminal 14a in the terminal row where the second signal terminal 14b and the first signal terminal 14a are alternately arranged in the column direction Y.

[0035] In such an arrangement, in the row direction X, adjacent differential signal terminal pairs 14 in the terminal row are shielded by the ground terminal 13 at intervals. In the column direction Y, for the first signal terminal 14a in the differential signal terminal pair 14, one side is shielded by the ground terminal 13, and the other side is shielded by the ground terminal 13 and the L-shaped protrusion 121. For the second signal terminal 14b in the differential signal terminal pair 14, both sides are shielded by the long side portion 121b of the L-shaped protrusion 121. In this way, any two adjacent signal terminal pairs 14 can be shielded, so that crosstalk generated during signal transmission by the electrical connector can be better prevented or reduced.

[0036] Preferably, the second end of the long side portion 121b of the L-shaped protrusion 121 can extend to a position flush with the signal terminals in the corresponding signal terminal row in the column direction Y. That is to say, as Figure 2a shown, the long side portion 121b of the L-shaped protrusion 121 can be extended so that the edge of the long side portion is flush with the edges of the second signal terminal 14b and the first signal terminal 14a in the region between the second signal terminal 14b (located on one side) and the first signal terminal 14a (located on the other side) in the column direction Y (i.e., aligned with an imaginary flush line extending in the column direction Y).

[0037] This "flush" arrangement of the long side portion 121b of the L-shaped protrusion 121 can not only achieve good shielding of the differential signal terminal pair 14, but also leave enough space so that the L-shaped notch 11a on the corresponding insulating body 11 is not too large, thus ensuring the structural strength of the insulating body 11.

[0038] From Figure 2aIt can also be seen that in this embodiment, the long side portions 121b of the L-shaped protrusions 121 can be equidistant from two adjacent terminal rows respectively. In this way, the long side portions 121b of the L-shaped protrusions 121 are located at the middle positions between adjacent terminal rows, making the structural arrangement of the conductive body 12 and the corresponding insulating body 11 more uniform and stable. In addition, the extension height of the L-shaped protrusion 121 in the insertion direction Z perpendicular to both the row direction X and the column direction Y can be configured to be the same as the depth of the L-shaped notch 11a. In this way, it not only ensures the shielding of the signal terminal pairs 14 by the L-shaped protrusions 121 in the insulating body 11, but also does not affect the connection and shielding between the ground terminals 13 and the signal terminal pairs 14 on the electrical connector and other components connected thereto.

[0039] As Figure 2a shown, the extension directions of the long side portions 121b of two adjacent rows of L-shaped protrusions 121 are opposite to those of the short side portions 121a. In Figure 2a , the long side portions 121b of the L-shaped protrusions 121 in the lowermost row all extend to the left relative to the short side portions 121a, while the long side portions 121b of the L-shaped protrusions in the adjacent row above extend to the right relative to the short side portions 121a.

[0040] The short side portions 121a of two adjacent L-shaped protrusions 121 in the column direction Y can extend in the same direction, and the long side portions 121b of two adjacent L-shaped protrusions 121 in the column direction Y can extend in opposite directions.

[0041] The short side portions 121a of two adjacent L-shaped protrusions 121 in the row direction X extend in the same direction, and the long side portions 121b of two adjacent L-shaped protrusions 121 in the row direction X extend in the same direction.

[0042] In the above arrangement, not only can good shielding effects be achieved, but also it is beneficial to ensure the structural strength of the insulating body 11.

[0043] Figure 2b shows another arrangement of the L-shaped protrusions 121, which is different from the L-shaped protrusions 121 shown in Figure 2a in that the short side portions 121a of two adjacent L-shaped protrusions 121 in the row direction X extend in opposite directions, and the long side portions 121b of two adjacent L-shaped protrusions 121 in the row direction X extend in opposite directions. This arrangement can also achieve good shielding effects.

[0044] As Figure 2a and Figure 3As shown, on two opposite edges of the conductive body 12 along the column direction Y, there are respectively provided conductive bumps 122 extending upward. The distance that the conductive bumps 122 extend in the row direction X is equal to the distance from the first end to the second end of the long side portion 121b of the L-shaped protrusion 121, so as to shield the differential signal terminal pairs 14 of the corresponding rows to avoid interference with other circuit structures / chips on the circuit board. At the same time, the conductive bumps 122 can also provide a certain interference effect when the conductive body 12 and the insulating body 11 are connected (for example, an interference fit can be formed between the conductive bumps 122 on the conductive body 12 and the corresponding mating notches on the insulating body 11) to reduce or avoid the risk of the conductive body 12 detaching from the insulating body 11.

[0045] As Figure 7 and Figure 8a and Figure 8b As shown, ribs 113 can be formed on the L-shaped notch 11a. The ribs 113 and the L-shaped protrusion 121 (for the convenience of showing the ribs 113, the L-shaped protrusion 121 is not shown in Figure 7 and Figure 8a and Figure 8b the figure) form an interference fit to enhance the connection stability between the conductive body 12 and the insulating body 11. This interference fit can be a hard interference, that is, at least one rib 113 is formed on the inner surface of the L-shaped notch 11a, and the corresponding side surface of the corresponding L-shaped protrusion 121 is flat. When the L-shaped protrusion 121 is inserted into the L-shaped notch 11a, the rib 113 makes the L-shaped protrusion 121 firmly engaged in the L-shaped notch 11a.

[0046] As Figure 8a and Figure 8b shown, the ribs 113 on the L-shaped notch 11a linearly extend along the insertion direction Z, and the thickness of at least a part of the ribs 113 can gradually decrease from top to bottom along the insertion direction Z to form a guiding section, so that when the conductive body 12 is inserted into the insulating body 11 from Figure 8a below as shown, the rib part with a smaller thickness below can facilitate the insertion of the L-shaped protrusion 121 and provide an increasingly enhanced engagement effect as the insertion depth increases. However, the present disclosure is not limited thereto. In an alternative embodiment, the mating manner between the L-shaped protrusion 121 and the L-shaped notch 11a can be a concave-convex fit, or the fixing effect between the two can be achieved through other equivalent means.

[0047] As Figure 7As shown, the insulating body 11 includes a plurality of first terminal openings 111 and a plurality of second terminal openings 112. A plurality of ground terminals 13 respectively pass through the plurality of first terminal openings 111, and a plurality of signal terminals (including a first signal terminal 14a and a second signal terminal 14b) respectively pass through the plurality of second terminal openings 112. Among them, the first terminal opening 111 communicates with the L-shaped notch 11a, so that when the L-shaped protrusion 121 is inserted into the L-shaped notch 11a, the short side portion 121a of the L-shaped protrusion 121 can be electrically connected to the ground terminal 13.

[0048] As Figure 5 and Figure 6 As shown, the conductive body 12 includes a plurality of third terminal openings 123 and a plurality of fourth terminal openings 124. A plurality of ground terminals 13 respectively pass through the plurality of third terminal openings 123 and are electrically connected to the conductive body 12. A plurality of the differential signal terminal pairs 14 respectively pass through the plurality of fourth terminal openings 124 and have a gap with the conductive body 12. Among them, the fourth terminal opening 124 is a rectangular structure, the length D of the short side of the rectangular structure is not less than 1.6 mm, and the length L of the long side adjacent to the short side is not less than 2.7 mm.

[0049] Figure 9 Figure shows an electrical connector according to a second embodiment of the present disclosure, and its arrangement is basically the same as that of the first electrical connector shown in Figures 1 to 8b However, the electrical connector of the second embodiment has ten terminal rows and twelve terminal columns, as well as the assembly method of the conductive body.

[0050] As Figure 10 As shown, the conductive body of the electrical connector in each embodiment of the present disclosure may be a split structure. For example, a two-piece structure shown in Figure 10 may be adopted. It is composed of two halves electrically connected together. For an electrical connector with a large size caused by a large number of ground terminals and signal terminals, this two-piece structure (split structure) is convenient in manufacturing.

[0051] In the present application, the conductive body 12 may be made of an electromagnetic wave absorbing material or an electrically lossy material (lossy material), etc. The electrically lossy material is formed by adding a filler containing conductive particles to a binder. Examples of conductive particles that can be used as fillers to form the electrically lossy material may include carbon or graphite or other particles formed into fibers, flakes. Metals in the form of powders, flakes, fibers or other particles can also be used to provide suitable electrically lossy properties. Optionally, a combination of fillers may be used. For example, metal-coated carbon particles may be used. Silver and nickel are suitable electroplated metals for fibers. The coated particles can be used alone or in combination with other fillers such as carbon flake fibers.

[0052] In some embodiments, the binder can be a thermoplastic material, a high-temperature resistant nylon material, such as is conventionally used in the manufacture of electrical connectors to facilitate the casting of an electrical loss material into a desired shape and position as part of the manufacture of electrical connectors. However, many alternative forms of binder materials can be used. Curable materials, such as epoxy resins, can also be used as binders. Optionally, materials such as thermoplastic resins or adhesives can be used. Moreover, although the binder materials described above are used to establish an electrical loss material by forming a binder around the conductive particle filler, the present application is not limited thereto. For example, another embodiment of the above-described conductive body can also be injection molded first from a thermoplastic material or a high-temperature resistant nylon material conventionally used in the manufacture of electrical connectors, and then electroplated with conductive materials such as copper, nickel, gold, silver, etc.

[0053] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An electrical connector (1), comprising: An insulating body (11); A conductive body (12) positioned relative to the insulating body; And A plurality of ground terminals (13) and a plurality of signal terminals, the plurality of ground terminals (13) and the plurality of signal terminals being connected to the insulating body (11) in an array form, wherein every two adjacent signal terminals along the row direction (X) of the array form a differential signal terminal pair (14), the differential signal terminal pair (14) and the ground terminals are alternately arranged in the row direction (X) to form terminal rows, and the differential signal terminal pairs (14) in adjacent terminal rows are arranged such that their projections in the column direction (Y) perpendicular to the row direction (X) at least partially overlap each other. It is characterized in that A plurality of L-shaped protrusions (121) are provided on the conductive body (12), the L-shaped protrusions (121) are disposed in L-shaped notches (11a) on the insulating body (11), and a row of the L-shaped protrusions (121) is formed between every two adjacent terminal rows. Wherein, the L-shaped protrusion (121) has a short side portion (121a) and a long side portion (121b), the first end of the short side portion is connected to the first end of the long side portion, the short side portion (121a) extends along the column direction (Y) and is electrically connected to the corresponding ground terminal by the second end of the short side portion, and the long side portion (121b) extends along the row direction (X) to isolate at least a part of the differential signal terminal pairs (14) that at least partially overlap each other in adjacent terminal rows in the column direction (Y).

2. The electrical connector according to claim 1, characterized in that The differential signal terminal pairs (14) in adjacent terminal rows are arranged in a staggered manner, such that the first signal terminal (14a) in the differential signal terminal pair (14) in one terminal row is arranged opposite to a ground terminal (13) in an adjacent terminal row, and the second signal terminal (14b) in the differential signal terminal pair (14) in the terminal row is arranged opposite to the first signal terminal (14a) in the differential signal terminal pair (14) in the adjacent terminal row, so that the signal terminals opposite to each other in each terminal row form a signal terminal column along the column direction (Y). The long side portion (121b) of the L-shaped protrusion (121) extends along the row direction (X) through the region between adjacent signal terminals in the signal terminal column.

3. The electrical connector according to claim 2, characterized in that The second end of the long side portion (121b) of the L-shaped protrusion (121) extends to a position flush with the signal terminals in the corresponding signal terminal column in the column direction (Y).

4. The electrical connector according to claim 1, wherein The distances between the long side portion (121b) of the L-shaped protrusion (121) and the two adjacent terminal rows are equal.

5. The electrical connector according to claim 1, characterized in that, The extension height of the L-shaped protrusion (121) in the insertion direction (Z) perpendicular to both the row direction (X) and the column direction (Y) is consistent with the depth of the L-shaped notch (11a).

6. The electrical connector according to claim 1, characterized in that, The extending directions of the long side portions (121b) of two adjacent rows of the L-shaped protrusions (121) are opposite to each other with respect to the short side portions (121a).

7. The electrical connector according to claim 1, wherein the short side portions (121a) of two adjacent L-shaped protrusions (121) in the column direction (Y) extend in the same direction, and the long side portions (121b) of two adjacent L-shaped protrusions (121) in the column direction (Y) extend in opposite directions.

8. The electrical connector according to claim 7, wherein the short side portions (121a) of two adjacent L-shaped protrusions (121) in the row direction (X) extend in the same direction, and the long side portions (121b) of two adjacent L-shaped protrusions (121) in the row direction (X) extend in the same direction; or the short side portions (121a) of two adjacent L-shaped protrusions (121) in the row direction (X) extend in opposite directions, and the long side portions (121b) of two adjacent L-shaped protrusions (121) in the row direction (X) extend in opposite directions.

9. The electrical connector according to claim 1, wherein, On two opposite edges of the conductive body (12) along the column direction (Y), there are respectively provided conductive bumps (122) extending upward. The conductive bumps (122) are arranged opposite to the differential signal terminal pairs (14) in the adjacent terminal rows, and the distance they extend in the row direction (X) is equal to the distance from the first end to the second end of the long side portion (121b) of the L-shaped protrusion (121).

10. The electrical connector according to claim 1, wherein a convex rib (113) is formed on the L-shaped notch (11a), and the convex rib (113) forms an interference fit with the L-shaped protrusion (121).

11. The electrical connector according to claim 1, wherein The insulating body includes a plurality of first terminal openings (111) and a plurality of second terminal openings (112). A plurality of the ground terminals (13) respectively pass through the plurality of first terminal openings (111), and a plurality of the signal terminals respectively pass through the plurality of second terminal openings (112). Among them, the first terminal openings (111) communicate with the L-shaped notch (11a).

12. The electrical connector according to claim 1, wherein The conductive body (12) includes a plurality of third terminal openings (123) and a plurality of fourth terminal openings (124). A plurality of the ground terminals (13) respectively pass through the plurality of third terminal openings (123) and are electrically connected to the conductive body (12). A plurality of the differential signal terminal pairs (14) respectively pass through the plurality of fourth terminal openings (124) and have a gap with the conductive body (12). Among them, the fourth terminal openings (124) are of a rectangular structure. The length of the short side of the rectangular structure is not less than 1.6 mm, and the length of the long side adjacent to the short side is not less than 2.7 mm.

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