Anti-crosstalk connector

Abstract

The utility model discloses an anti-crosstalk connector, which relates to the technical field of connectors and comprises a PCB (printed circuit board), a first FFC (flexible flat cable), a second FFC and a grounding shielding frame, golden fingers are connected to the upper surface and the lower surface of the PCB, communication wires are arranged in the first FFC and the second FFC and are connected with bonding pads, and the grounding shielding frame is connected with the grounding shielding frame. The grounding shielding frame is clamped and fixed on the upper portion and the lower portion of the PCB, and the grounding shielding frame is of a metal structure and can shield electromagnetic interference. According to the connector, the grounding shielding frame made of the metal material is arranged at the joint of the PCB bonding pad and the communication wire rod, the separation frames are arranged at intervals in the structure of the grounding shielding frame, and the joint of each group of PCB bonding pad and the communication wire rod is located in the shielding cavity reserved between the two separation frames. Therefore, when the connector is used, the performance of resisting electromagnetic interference can be greatly improved, that is, the electromagnetic interference can be effectively reduced, and the stability and the reliability of signal transmission of the connector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an anti-crosstalk connector. Background Art

[0002] With the rapid development of electronic technology, the operating frequency and processing speed of electronic systems are constantly increasing. Especially in the field of high-speed communications, connectors and their connection with communication cables play a vital role. However, in the pursuit of high speed and high efficiency, a problem that cannot be ignored has gradually emerged: electromagnetic interference.

[0003] As an essential component in electronic systems, connector performance directly impacts the stability and reliability of the entire system. When communication cables connect to connector pads, rapid current changes and voltage fluctuations often generate electromagnetic fields at the connection point, leading to electromagnetic interference. This electromagnetic interference can not only cause signal distortion and transmission errors, but can even damage the entire system.

[0004] Specifically, when the connector pads connect to the communication wires, a weak electromagnetic field is generated at the connection due to factors such as imperfections in the contact surface, differences in the resistivity of the materials, and transient changes in the current. As the signal frequency increases and the transmission rate speeds up, this electromagnetic field becomes increasingly stronger, causing interference to other circuits or devices.

[0005] Furthermore, electromagnetic interference can propagate through common-mode noise. Common-mode noise is often caused by poor design or component defects, such as differences in the length of individual wires within different pairs, or varying distances from power planes or chassis. These factors can lead to uneven distribution of electromagnetic fields at connections, which in turn can cause common-mode noise. Utility Model Content

[0006] In view of the deficiencies of the prior art, the present invention provides an anti-crosstalk connector, which solves the problems raised by the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-crosstalk connector, comprising:

[0008] A PCB circuit board, wherein the upper and lower surfaces of the PCB circuit board are connected to a plurality of gold fingers and pads;

[0009] FFC flat wire 1 and FFC flat wire 2, each of which has a plurality of communication wires disposed therein, and the communication wires are connected to the soldering pads;

[0010] The ground shielding frame is fixed on the upper and lower parts of the PCB circuit board and corresponds to the connection between the communication wire and the pad. The ground shielding frame is a metal structure and can shield electromagnetic interference.

[0011] Furthermore, the grounded shielding frame includes a main frame body, the bottom end of the main frame body is evenly connected to a plurality of partition frames, a shielding cavity is reserved between two adjacent partition frames, and the communication wire is located in the shielding cavity after being connected to the welding pad.

[0012] Furthermore, the grounding shielding frame also includes clamps connected to both ends of the main frame body, and clamp holes are provided on both sides of the PCB circuit board, and the clamps are clamped inside the clamp holes.

[0013] Furthermore, the anti-crosstalk connector further includes:

[0014] A back cover is provided to wrap around the PCB circuit board, the first FFC flat cable, the ground shielding frame, and the second FFC flat cable;

[0015] The housing is connected to the back cover via a first snap-fit ​​structure and a second snap-fit ​​structure, and the housing is connected to the PCB via a third snap-fit ​​structure;

[0016] The shrapnel is connected to the top of the shell.

[0017] Furthermore, the first engaging structure includes a first engaging protrusion symmetrically connected to the top of the back cover and a first engaging slot symmetrically arranged on the top of the shell, and the first engaging protrusion engages with the first engaging slot.

[0018] Furthermore, the second engaging structure includes a second engaging protrusion symmetrically connected to the bottom of the back cover and a second engaging groove symmetrically arranged at the bottom of the shell, and the second engaging protrusion engages with the second engaging groove.

[0019] Furthermore, the third engaging structure includes step protrusions symmetrically connected to both sides of the PCB circuit board and step slots symmetrically arranged on both sides of the inside of the shell, and the step protrusions are engaged with the step slots.

[0020] The utility model provides an anti-crosstalk connector. Compared with the prior art, it has the following advantages:

[0021] This connector has a metal grounding shielding frame at the connection between the PCB pads and the communication wires. In the structure of this grounding shielding frame, a partition frame is set at a certain distance. The connection between each set of pads and the communication wires is located in a shielding cavity reserved between the two partition frames. In this way, when the connector is in use, it can greatly improve its performance in resisting electromagnetic interference, that is, it can effectively reduce electromagnetic interference and improve the stability and reliability of the connector signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the disassembly of the utility model;

[0023] Figure 2 This is a schematic diagram of the assembly of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the PCB circuit board in the present utility model;

[0025] Figure 4 This is a schematic structural diagram of the ground shielding frame in the utility model;

[0026] Figure 5 This is a schematic diagram of the ground shielding frame in the present invention separating the connection between the wire and the pad;

[0027] Figure 6 This is a schematic structural diagram of the rear cover of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the housing in the present invention from a first perspective;

[0029] Figure 8 This is a schematic structural diagram of the shell in the present invention from a second viewing angle.

[0030] In the figure: 1. PCB circuit board; 11. Gold finger; 110. Solder pad; 12. Card hole; 13. Step protrusion; 2. FFC flat cable 1; 21. Communication wire; 3. Ground shielding frame; 31. Main frame; 32. Partition frame; 33. Shielding cavity; 34. Card head; 4. FFC flat cable 2; 5. Back cover; 51. First card position protrusion; 52. Second card position protrusion; 6. Housing; 61. First card slot; 62. Second card slot; 63. Step card slot; 7. Shrapnel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-8The utility model provides a technical solution: an anti-crosstalk connector, mainly composed of a PCB circuit board 1, an FFC flat wire 1 2, a grounding shielding frame 3, an FFC flat wire 2 4, a back cover 5, a shell 6 and a spring 7. Among them, the communication wires 21 of the FFC flat wire 1 2 and the FFC flat wire 2 4 are connected to the pads 110 of the PCB circuit board 1, and in order to achieve the effect of anti-crosstalk, the grounding shielding frame 3 is arranged outside the communication wires 21 and the pads 110. The grounding shielding frame 3 is made of metal and has excellent shielding against electromagnetic interference. Performance, the back cover 5 serves to connect the PCB circuit board 1, FFC flat wire 1 2, grounding shielding frame 3, and FFC flat wire 2 4. The shell 6 is fixed to the outside of the back cover 5, and the spring 7 is fixed to the top of the shell 6. The spring 7 can make the connector snap together with other connectors; gold fingers 11 and solder pads 110 are respectively provided on both sides of the PCB circuit board 1, and the grounding shielding frame 3 is provided at the position corresponding to the solder pads 110 of the PCB circuit board 1, wherein the gold fingers 11 are communicated with other connectors, and the solder pads 110 are connected to the FFC flat wire.

[0033] More specifically, the grounding shielding frame 3 includes a main frame body 31, and a number of partition frames 32 are evenly connected to the bottom end of the main frame body 31. A shielding cavity 33 is reserved between two adjacent partition frames 32. After the communication wire 21 is connected to the solder pad 110, it is located in the shielding cavity 33. In this way, after every two communication wires 21 and the solder pad 110 are connected, they will be located in an independent shielding cavity 33, which will have a better effect on electromagnetic shielding.

[0034] In order to connect and fix the ground shield frame 3 to the PCB circuit board 1, the clamping heads 34 at both ends of the main frame 31 and the two sides of the PCB circuit board 1 are penetrated with clamping holes 12. When connected, the clamping heads 34 are engaged in the inside of the clamping holes 12.

[0035] In addition, the back cover 5 and the outer shell 6 are connected and fixed by the first locking protrusion 51 and the first locking slot 61, and the second locking protrusion 52 and the second locking slot 62 respectively. When connected, the first locking protrusion 51 is engaged with the first locking slot 61, and the second locking protrusion 52 is engaged with the second locking slot 62. There is also a locking relationship between the PCB circuit board 1 and the outer shell 6, which are connected and fixed by the step protrusion 13 and the step locking slot 63, and when connected, the step protrusion 13 is engaged with the step locking slot 63.

Claims

1. An anti-crosstalk connector, characterized in that: include: A PCB circuit board (1), wherein the upper and lower surfaces of the PCB circuit board (1) are both connected to a plurality of gold fingers (11) and solder pads (110); FFC flat wire one (2) and FFC flat wire two (4), wherein a plurality of communication wires (21) are provided inside the FFC flat wire one (2) and the FFC flat wire two (4), and the communication wires (21) are connected to the soldering pad (110); A grounding shielding frame (3) is fixedly engaged with the upper and lower parts of the PCB circuit board (1) and corresponds to the connection between the communication wire (21) and the soldering pad (110). The grounding shielding frame (3) is a metal structure and can shield electromagnetic interference.

2. The anti-crosstalk connector according to claim 1, characterized in that: The grounding shielding frame (3) comprises a main frame (31), a plurality of partition frames (32) are evenly connected to the bottom end of the main frame (31), a shielding cavity (33) is reserved between two adjacent partition frames (32), and the communication wire (21) is located in the shielding cavity (33) after being connected to the soldering pad (110).

3. The anti-crosstalk connector according to claim 1, characterized in that: The grounding shielding frame (3) further includes a clamping head (34) connected to both ends of the main frame (31), and clamping holes (12) are provided on both sides of the PCB circuit board (1), and the clamping head (34) is clamped inside the clamping hole (12).

4. The anti-crosstalk connector according to claim 1, characterized in that: Also includes: A rear cover (5), the rear cover (5) being arranged to wrap around the outside of the PCB circuit board (1), the FFC flat wire 1 (2), the grounding shielding frame (3), and the FFC flat wire 2 (4); A housing (6), wherein the housing (6) is connected to the back cover (5) via a first snap-fit ​​structure and a second snap-fit ​​structure, and the housing (6) is connected to the PCB circuit board (1) via a third snap-fit ​​structure; A shrapnel (7), wherein the shrapnel (7) is connected to the top end of the housing (6).

5. The anti-crosstalk connector according to claim 4, characterized in that: The first engaging structure comprises a first engaging protrusion (51) symmetrically connected to the top of the back cover (5) and a first engaging slot (61) symmetrically arranged on the top of the housing (6), wherein the first engaging protrusion (51) engages with the first engaging slot (61).

6. The anti-crosstalk connector according to claim 4, characterized in that: The second engaging structure comprises a second engaging protrusion (52) symmetrically connected to the bottom of the back cover (5) and a second engaging groove (62) symmetrically arranged at the bottom of the housing (6), wherein the second engaging protrusion (52) engages with the second engaging groove (62).

7. The anti-crosstalk connector according to claim 4, characterized in that: The third engaging structure comprises step protrusions (13) symmetrically connected to both sides of the PCB circuit board (1) and step slots (63) symmetrically arranged on both sides inside the housing (6), wherein the step protrusions (13) engage with the step slots (63).

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