An electrical connector to prevent cross-talk

Abstract

The utility model relates to connector technical field, concretely is a kind of anti-crosstalk electric connector, including male connector and female connector, the male connector includes metal shell one, the bottom of metal shell one is fixedly connected with fixed base plate one, the upper surface of fixed base plate one is fixedly connected with shielding assembly one, the shielding assembly one includes independent shielding pipe one, the lower surface of independent shielding pipe one is fixedly connected with the upper surface of fixed base plate one, the top of independent shielding pipe one is set back-shaped slot, the inside of independent shielding pipe one is fixedly connected with lower row terminal, the lower row terminal is inserted in the inside of fixed base plate one.This anti-crosstalk electric connector, the outside of every terminal is designed independent metal shielding pipe in inside, shielding pipe inner wall adds wave-absorbing material layer, reduces electromagnetic radiation leakage, while the design of independent shielding pipe effectively blocks the capacitive coupling path between adjacent signal pins, fundamentally reduces high-frequency signal crosstalk problem.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to an anti-crosstalk electrical connector. Background Technology

[0002] Electrical connectors are indispensable electronic components in various electrical and electronic systems, widely used in aerospace, aviation, nuclear industry, weaponry, shipbuilding, electronics, transportation, computer, communications, medical, and oil exploration industries. Their primary function is to transmit electrical signals in circuits; they serve as the nerve center and connection point of the electrical signal transmission system. Their quality, both structurally and in terms of signal transmission, directly affects the performance and quality of the product.

[0003] Problems: Traditional connectors often use an integral shielding shell, but capacitive coupling interference still exists between adjacent signal pins, especially for high-frequency signals. When the plastic body of the connector is subjected to external force, vibration, or impact, the plastic body of the connector may crack, and the connection between electrical connectors may break during vibration. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-crosstalk electrical connector to solve the problems mentioned in the background art, where traditional connectors often use an integral shielding shell, and capacitive coupling interference still exists between adjacent signal pins, especially for high-frequency signals. When the plastic body of the connector is subjected to external force, vibration, or impact, the plastic body of the connector may crack, and the connection between electrical connectors may break during vibration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-crosstalk electrical connector, comprising a male connector and a female connector. The male connector includes a metal shell, a fixed base plate fixedly connected to the bottom of the metal shell, and a shielding assembly fixedly connected to the upper surface of the fixed base plate. The shielding assembly includes an independent shielding tube, the lower surface of which is fixedly connected to the upper surface of the fixed base plate. A U-shaped groove is formed at the top of the independent shielding tube. A lower row of terminals is fixedly connected inside the independent shielding tube and inserted into the interior of the fixed base plate. An independent metal shielding tube is designed for the exterior of each terminal inside the shielding tube. An absorbing material layer is added to the inner wall of the shielding tube to reduce electromagnetic radiation leakage. At the same time, the design of the independent shielding tube effectively blocks the capacitive coupling path between adjacent signal pins, fundamentally reducing the problem of high-frequency signal crosstalk.

[0006] More preferably, the female connector includes a second metal shell, a second fixed base plate is fixedly connected to the bottom of the second metal shell, and a second shielding component is fixedly connected to the upper surface of the second fixed base plate. The second shielding component includes a second independent shielding tube, and the lower surface of the second independent shielding tube is fixedly connected to the upper surface of the second fixed base plate.

[0007] More preferably, a U-shaped plate is fixedly connected to the top of the independent shielding tube II, the U-shaped plate is adapted to the U-shaped groove, and an upper row of terminals is fixedly connected inside the independent shielding tube II. The upper row of terminals is inserted into the inside of the fixed base plate II. The top of the independent shielding tube II is provided with a U-shaped plate structure, which forms an interlocking anti-misalignment design with the U-shaped groove of the male connector to ensure the alignment accuracy of the male and female terminals under high-frequency vibration environment.

[0008] More preferably, the upper row of terminals includes a terminal arm, one end of which is fixedly connected to a contact end, and the other end of which is fixedly connected to a welding end. A protrusion is provided on one side of the terminal arm. The protrusion design of the terminal arm can enhance the structural strength and form a stress buffer area between the contact end and the welding end, effectively dispersing the mechanical stress generated by vibration and preventing the welding point from cracking due to long-term vibration.

[0009] More preferably, the lower row of terminals includes a second terminal arm, one end of which is fixedly connected to a second contact end, and the other end of which is fixedly connected to a second welding end, and a second protrusion is provided on one side of the second terminal arm.

[0010] More preferably, the lower row of terminals is externally fixedly connected to a plastic body, and the surface of the plastic body is provided with openings. The plastic body is made of high-toughness engineering plastic. The surface opening design can reduce the overall weight and reduce the dielectric loss during high-frequency signal transmission by allowing air circulation. At the same time, the rounded corner transition treatment of the opening edge effectively avoids stress concentration and prevents the plastic body from cracking when subjected to external impact.

[0011] More preferably, a connecting plate is fixedly connected to the upper surface of the first metal shell, and a guide hole is provided at the corner of the first connecting plate. A connecting plate is fixedly connected to the upper surface of the second metal shell, and a guide post is fixedly connected to the corner of the second connecting plate. The guide hole and the guide post are designed to cooperate to ensure that the male and female connectors are automatically aligned during the insertion process. With the parallelism control of the first connecting plate and the second connecting plate, the insertion force is evenly distributed.

[0012] More preferably, the lower surface of the connecting plate two is fixedly connected with multiple snap-fit ​​blocks, and one side of the metal shell one is provided with multiple snap-fit ​​grooves. The snap-fit ​​blocks are adapted to the snap-fit ​​grooves. The snap-fit ​​blocks adopt an elastic deformation structure and form an interference fit with the snap-fit ​​grooves. This design not only provides reliable mechanical locking, but also absorbs vibration energy through elastic deformation, combined with the electromagnetic shielding effect of the independent shielding tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, an independent metal shielding tube is designed for the exterior of each terminal. An absorbing material layer is added to the inner wall of the shielding tube to reduce electromagnetic radiation leakage. At the same time, the design of the independent shielding tube effectively blocks the capacitive coupling path between adjacent signal pins, fundamentally reducing the problem of high-frequency signal crosstalk.

[0014] In this invention, the plastic body is made of high-toughness engineering plastic. The surface opening design can reduce the overall weight and reduce the dielectric loss during high-frequency signal transmission by allowing air circulation. At the same time, the rounded corner transition treatment of the opening edge effectively avoids stress concentration and prevents the plastic body from cracking when subjected to external impact. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the male connector of this utility model; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the female connector of this utility model; Figure 5 This is a three-dimensional structural diagram of the lower row of terminals of this utility model; Figure 6 This is a three-dimensional structural diagram of the upper row of terminals of this utility model.

[0016] In the diagram: 1. Male connector; 2. Female connector; 3. Shielding assembly one; 4. Shielding assembly two; 5. Upper row of terminals; 6. Lower row of terminals; 7. Plastic body; 8. Opening; 9. Connecting plate one; 10. Guide hole; 11. Connecting plate two; 12. Guide post; 13. Snap-fit ​​block; 14. Snap-fit ​​groove; 101. Metal shell one; 102. Fixing base plate one; 201. Metal shell two; 202. Fixing base plate two; 301. Independent shielding tube one; 302. U-shaped groove; 401. Independent shielding tube one; 402. U-shaped plate; 501. Terminal arm one; 502. Contact end one; 503. Welding end one; 504. Protrusion one; 601. Terminal arm two; 602. Contact end two; 603. Welding end two; 604. Protrusion two. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6 This utility model provides a technical solution: an anti-crosstalk electrical connector, including a male connector 1 and a female connector 2. The male connector 1 includes a metal shell 101, a fixed base plate 102 is fixedly connected to the bottom of the metal shell 101, and a shielding component 3 is fixedly connected to the upper surface of the fixed base plate 102. The shielding component 3 includes an independent shielding tube 301, the lower surface of the independent shielding tube 301 is fixedly connected to the upper surface of the fixed base plate 102, a U-shaped groove 302 is opened on the top of the independent shielding tube 301, and a lower row of terminals 6 is fixedly connected inside the independent shielding tube 301. The lower row of terminals 6 are inserted into the inside of the fixed base plate 102. An independent metal shielding tube is designed on the outside of each terminal inside the shielding tube. An absorbing material layer is added to the inner wall of the shielding tube to reduce electromagnetic radiation leakage. At the same time, the design of the independent shielding tube effectively blocks the capacitive coupling path between adjacent signal pins, fundamentally reducing the problem of high-frequency signal crosstalk.

[0019] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the female connector 2 includes a metal housing 201, a fixed base plate 202 is fixedly connected to the bottom of the metal housing 201, and a shielding component 4 is fixedly connected to the upper surface of the fixed base plate 202. The shielding component 4 includes an independent shielding tube 401, and the lower surface of the independent shielding tube 401 is fixedly connected to the upper surface of the fixed base plate 202.

[0020] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a U-shaped plate 402 is fixedly connected to the top of the independent shielding tube 2 401. The U-shaped plate 402 is adapted to the U-shaped groove 302. An upper row of terminals 5 is fixedly connected inside the independent shielding tube 2 401. The upper row of terminals 5 is inserted into the inside of the fixed base plate 2 202. The U-shaped plate 402 structure is set on the top of the independent shielding tube 2 401, which forms a fitting anti-misalignment design with the U-shaped groove 302 of the male connector 1 to ensure the alignment accuracy of the male and female terminals under high-frequency vibration environment.

[0021] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the upper row of terminals 5 includes a terminal arm 501. One end of the terminal arm 501 is fixedly connected to a contact end 502, and the other end of the terminal arm 501 is fixedly connected to a welding end 503. A protrusion 504 is provided on one side of the terminal arm 501. The protrusion 504 of the terminal arm 501 is designed to enhance the structural strength and form a stress buffer area between the contact end 502 and the welding end 503, effectively dispersing the mechanical stress generated by vibration and preventing the welding point from cracking due to long-term vibration.

[0022] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the lower row of terminals 6 includes a second terminal arm 601. One end of the second terminal arm 601 is fixedly connected to a second contact end 602, and the other end of the second terminal arm 601 is fixedly connected to a second welding end 603. A second protrusion 604 is provided on one side of the second terminal arm 601.

[0023] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a plastic body 7 is fixedly connected to the outside of the lower row of terminals 6. The surface of the plastic body 7 has an opening 8. The plastic body 7 is made of high-toughness engineering plastic. The surface opening 8 design can reduce the overall weight and reduce the dielectric loss during high-frequency signal transmission through air circulation. At the same time, the rounded corner transition treatment of the opening 8 effectively avoids stress concentration and prevents the plastic body 7 from cracking when subjected to external impact.

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a connecting plate 9 is fixedly connected to the upper surface of the metal housing 101. A guide hole 10 is provided at the corner of the connecting plate 9. A connecting plate 11 is fixedly connected to the upper surface of the metal housing 201. A guide post 12 is fixedly connected to the corner of the connecting plate 11. The guide hole 10 and the guide post 12 are designed to ensure that the male and female connectors are automatically aligned during the insertion process. With the parallelism control of the connecting plate 9 and the connecting plate 11, the insertion force is evenly distributed.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, multiple snap-fit ​​blocks 13 are fixedly connected to the lower surface of the connecting plate 11. Multiple snap-fit ​​slots 14 are provided on one side of the metal shell 101. The snap-fit ​​blocks 13 are adapted to the snap-fit ​​slots 14. The snap-fit ​​blocks 13 adopt an elastic deformation structure to cooperate with the snap-fit ​​slots 14. This design not only provides reliable mechanical locking, but also absorbs vibration energy through elastic deformation, combined with the electromagnetic shielding effect of the independent shielding tube.

[0026] The usage and advantages of this utility model: The anti-crosstalk electrical connector operates as follows: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the male connector 1 and the female connector 2 are aligned, and automatic alignment is achieved through the cooperation of the guide hole 10 and the guide post 12. Then, an appropriate insertion force is applied to make the snap-fit ​​block 13 and the snap-fit ​​groove 14 form a reliable connection. During this process, the independent shielding tube 1 301 and the independent shielding tube 2 401 ensure the alignment accuracy under high-frequency vibration environment through the interlocking structure of the loop groove 302 and the loop plate 402. At the same time, the absorbing material layer effectively reduces electromagnetic radiation leakage. When the equipment is subjected to vibration or impact, the convex structure on the terminal arm and the elastic snap-fit ​​block work together to form a multi-level stress buffer mechanism to prevent the solder joint from cracking and the connection from loosening.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crosstalk-resistant electrical connector, comprising a male connector (1) and a female connector (2), characterized in that: The male connector (1) includes a metal shell (101), a fixed base plate (102) is fixedly connected to the bottom of the metal shell (101), a shielding component (3) is fixedly connected to the upper surface of the fixed base plate (102), the shielding component (3) includes an independent shielding tube (301), the lower surface of the independent shielding tube (301) is fixedly connected to the upper surface of the fixed base plate (102), a U-shaped groove (302) is opened at the top of the independent shielding tube (301), and a lower row of terminals (6) is fixedly connected inside the independent shielding tube (301), the lower row of terminals (6) is inserted into the interior of the fixed base plate (102).

2. The anti-crosstalk electrical connector according to claim 1, characterized in that: The female connector (2) includes a metal shell (201), a fixed base plate (202) is fixedly connected to the bottom of the metal shell (201), and a shielding component (4) is fixedly connected to the upper surface of the fixed base plate (202). The shielding component (4) includes an independent shielding tube (401), and the lower surface of the independent shielding tube (401) is fixedly connected to the upper surface of the fixed base plate (202).

3. The anti-crosstalk electrical connector according to claim 2, characterized in that: The top of the independent shielding tube 2 (401) is fixedly connected to a U-shaped plate (402), the U-shaped plate (402) is adapted to the U-shaped groove (302), and the interior of the independent shielding tube 2 (401) is fixedly connected to an upper row of terminals (5), the upper row of terminals (5) being inserted into the interior of the fixed base plate 2 (202).

4. A connector according to claim 3, wherein: The upper row of terminals (5) includes a terminal arm (501), one end of which is fixedly connected to a contact end (502), and the other end of which is fixedly connected to a welding end (503). A protrusion (504) is provided on one side of the terminal arm (501).

5. The anti-crosstalk electrical connector according to claim 4, characterized in that: The lower row of terminals (6) includes a second terminal arm (601), one end of which is fixedly connected to a second contact end (602), and the other end of which is fixedly connected to a second welding end (603). A second protrusion (604) is provided on one side of the second terminal arm (601).

6. The anti-crosstalk electrical connector according to claim 5, characterized in that: The lower terminal (6) is externally fixedly connected to a plastic body (7), and the surface of the plastic body (7) is provided with an opening (8).

7. The anti-crosstalk electrical connector according to claim 6, characterized in that: A connecting plate 1 (9) is fixedly connected to the upper surface of the metal shell 1 (101), and a guide hole (10) is provided at the corner of the connecting plate 1 (9). A connecting plate 2 (11) is fixedly connected to the upper surface of the metal shell 2 (201), and a guide post (12) is fixedly connected at the corner of the connecting plate 2 (11).

8. The anti-crosstalk electrical connector according to claim 7, characterized in that: Multiple snap-fit ​​blocks (13) are fixedly connected to the lower surface of the connecting plate 2 (11), and multiple snap-fit ​​grooves (14) are opened on one side of the metal shell 1 (101), and the snap-fit ​​blocks (13) are adapted to the snap-fit ​​grooves (14).

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