A cable connector housing with shielded partitions

Abstract

The utility model relates to a cable connector shell with shielding fence, which comprises a top shell and a bottom shell fixed by buckling, the top shell comprises a top plate and two parallel side plates, the bottom shell is fixed with a PCB, N column pad areas are distributed on the PCB along the width direction, N is an integer and greater than or equal to 1, each column pad area is composed of two or more than two pad areas distributed in the length direction of the PCB, signal pads and grounding pads are arranged in each pad area, and the signal pads and the grounding pads are respectively used for welding with signal conductors and grounding wires led out from the front end of the cable, characterized in that a plurality of fences parallel to the side plates are fixed on the inner surface of the top plate, N grid slots corresponding to the N column pad areas are separated between the two side plates, each column pad area and the front end of the cable connected to each pad area are located in the corresponding grid slot, and the bottom of the fence abuts against the surface of the PCB when the top shell and the bottom shell are buckled and fixed. The utility model is convenient to assemble and has low material cost.

Description

Technical Field

[0001] This utility model relates to a cable connector housing with a shielding barrier. Background Technology

[0002] Known multi-channel high-speed connectors in the communications industry all have a housing to encapsulate the internal PCB and the cables connected to it. The PCB typically has multiple rows of pads distributed along its width. Each row consists of two or more pads spaced apart along the length of the PCB, each used to connect the cable. After the outer sheath, aluminum foil, and insulation layer are cut off at the cable's end, a signal conductor (copper wire) is led out and soldered to the signal pads in each pad area. A ground wire is led out from the aluminum foil and soldered to the ground pads in each pad area.

[0003] Because the aluminum foil, which serves as the signal shield, is cut open, the electromagnetic signals radiating outward from the signal conductor lack obstruction, leading to significant crosstalk between cables. Furthermore, current PCB manufacturing typically employs a symmetrical fan-out design, where all vias are symmetrical and equally spaced. This causes magnetic field induction in adjacent signal conductors when current flows through them, further amplifying crosstalk.

[0004] However, current connector products do not have shielding structures for cables in their housings. To reduce crosstalk, additional independent shielding devices often need to be installed on the PCB, which has the following disadvantages: 1. The newly added independent shielding device needs to be assembled one by one with the solder pad area and cable during production. The assembly process is relatively complicated and the material cost is also high.

[0005] 2. For PCBs with a large number of pads, due to the limitations of the PCB board surface and the fixed specifications of the shielding device, it is often difficult to install multiple shielding devices at the same time without causing interference, which also brings trouble to production and assembly. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing shielded grounding devices mentioned in the background art by providing a cable connector housing with shielded barriers that is easy to assemble and has low material costs.

[0007] The technical solution of this utility model is: a cable connector housing with shielding partitions, including a lower shell and an upper shell that are fastened together. The upper shell includes a top plate and two parallel side plates. A PCB is fixed inside the lower shell. N columns of pad areas are distributed along the width direction of the PCB, where N is an integer and ≥1. Each column of pad areas consists of two or more pad areas that are spaced apart in the length direction of the PCB. Each pad area is provided with a signal pad and a ground pad, which are used for soldering to the signal conductor and ground wire led out from the front end of the cable, respectively. The feature is that a number of partitions parallel to the side plates are fixed on the inner surface of the top plate. These partitions are spaced apart by N slots corresponding to the N columns of pad areas. Each column of pad areas and the front end of the cable connected to each of its pad areas are located in the corresponding slot. When the upper shell and the lower shell are fastened together, the bottom of the partitions abuts against the surface of the PCB.

[0008] Furthermore, the top plate described in this utility model has several parallel heat dissipation fins fixed on its outer surface, and the distribution direction of these heat dissipation fins is consistent with that of the partition.

[0009] Furthermore, the cable described in this utility model is a differential signal cable, with a pair of signal conductors leading out from its front end, and a pair of signal pads correspondingly provided in the pad area, which are soldered to the same pair of signal conductors respectively.

[0010] Furthermore, in this utility model, a pair of grounding wires are led out from the front end of the cable, and a pair of grounding pads are correspondingly provided in the pad area, which are welded to the same pair of grounding wires respectively.

[0011] Furthermore, in each column of pad areas described in this utility model, the rear end of the cable connecting the front pad area passes over the cable connecting the rear pad area from above.

[0012] Furthermore, in this invention, N=4, and the number of pad areas in each row of pad areas is two.

[0013] Furthermore, in this utility model, the partition is integrally formed on the inner surface of the top plate.

[0014] The advantages of adopting the technical solution of this utility model are as follows: 1. This utility model directly forms multiple parallel partitions on the inner side of the upper shell that constitutes the outer shell, which can complete the shielding and blocking of multiple adjacent pad areas and their cables in the PCB width direction at one time. There is no need to install independent shielding devices for each cable end inside the outer shell. Therefore, the assembly is faster and more efficient, and the material cost is also lower.

[0015] 2. The grid created by the partitions in this invention can form a separate shielding cavity at the front end of each cable, thereby effectively avoiding signal crosstalk between adjacent cables.

[0016] 3. Compared with the current independent shielding devices that are separately installed on the cables, this utility model will not cause interference problems between adjacent installations and can make full use of the PCB board space.

[0017] The objectives, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a top view of the PCB in this utility model (chip components omitted). Figure 3 for Figure 2 A schematic diagram of the isometric three-dimensional structure; Figure 4 A three-dimensional isometric view of the cable connection to the PCB. Figure 5 for Figure 1 A schematic diagram of the inverted three-dimensional structure of the upper and middle shells.

[0019] In the diagram: 1. PCB; 2. Signal pad; 3. Grounding pad; 4. Cable; 5. Signal conductor; 6. Grounding wire; 7. Partition; 8. Lower shell; 9. Upper shell; 901. Top plate; 902. Side plate; 903. Heat sink fins; A. Pad area; B. Grid. Detailed Implementation

[0020] Example: The following is combined with Figures 1-5 The specific implementation of the cable connector housing with shielding barrier provided by this utility model is described below: Similar to conventional technology, this embodiment features a lower shell 8 and an upper shell 9 that are fastened together. The upper shell 9 is composed of a top plate 901 and two parallel side plates 902. A PCB 1 is fixed inside the lower shell 8. The PCB 1 has gold fingers at its front, control components such as chips soldered to its middle surface, and a cable connection area at its rear. Four rows of pad areas A are distributed along the width of the PCB 1 in this cable connection area. Each row of pad areas A consists of two pad areas A spaced apart along the length of the PCB 1. Each pad area A is used to connect a corresponding cable 4. Looking at the length of the PCB 1, there are two rows of pad areas A, with four pad areas A arranged side-by-side in each row.

[0021] In this embodiment, the cable 4 is a conventional differential signal cable, with a pair of signal conductors 5 and a pair of ground wires 6 leading out from its front end. Each pad area A is provided with a pair of signal pads 2, which are used to solder to the pair of signal conductors 5 of the cable 4 respectively. At the same time, each pad area A is also provided with a pair of ground pads 3 located outside the pair of signal pads 2, which are used to solder to the pair of ground wires 6 of the cable 4 respectively.

[0022] The core improvements of this utility model are as follows: Three partitions 7 parallel to the side plates 902 are integrally formed on the inner surface of the top plate 901. These partitions 7 are spaced between the two side plates 902 and have four slots B corresponding to the four columns of solder pad areas A. Each column of solder pad area A and the front end of the cable 4 connected to each of its solder pad areas A are located in the corresponding slot B. When the upper shell 9 and the lower shell 8 are fastened together, the bottom of the partition 7 abuts against the surface of the PCB1.

[0023] Meanwhile, in this embodiment, the top plate 901 has eight parallel heat dissipation fins 903 fixed on its outer surface, and the distribution direction of these heat dissipation fins 903 is consistent with that of the partition 7.

[0024] Furthermore, in this embodiment, within each column of pad area A, the rear end of the cable 4 connecting the front pad area A passes over the cable 4 connecting the rear pad area A from above.

[0025] The feature of this utility model is that it directly forms multiple parallel partitions 7 on the inner side of the upper shell 9 that constitutes the outer shell, which can complete the shielding and blocking of multiple adjacent pad areas A and their cables 4 in the width direction of PCB1 at one time. There is no need to install independent shielding devices for the front end of each cable 4 inside the outer shell. Therefore, the assembly is faster and more efficient, and the material cost is also lower.

[0026] Furthermore, the grid created by the partition 7 in this invention can form a separate shielding cavity at the front end of each cable 4, thereby effectively avoiding signal crosstalk between adjacent cables 4.

[0027] Furthermore, compared to the current independent shielding devices that are separately installed on the cable 4, this invention will not cause interference problems between adjacent installations and can make full use of the board space of PCB1.

[0028] Of course, the above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. In addition to the above embodiments, this utility model may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A cable connector housing with shielding partition, comprising a lower shell (8) and an upper shell (9) fastened together, the upper shell (9) comprising a top plate (901) and two parallel side plates (902), wherein a PCB (1) is fixed inside the lower shell (8), and N columns of pad areas (A) are distributed along the width direction of the PCB (1), where N is an integer and ≥1, each column of pad areas (A) is composed of two or more pad areas (A) spaced apart in the length direction of the PCB (1), and each pad area (A) is provided with a signal pad (2) and a ground pad (3), which are respectively used for soldering to the signal conductor (5) and ground wire (6) led out from the front end of the cable (4); characterized in that, Several partitions (7) parallel to the side plates (902) are fixed on the inner surface of the top plate (901). These partitions (7) are spaced between the two side plates (902) and N slots (B) corresponding to N columns of pad areas (A). The front ends of each column of pad area (A) and the cables (4) connected to each of its pad areas (A) are located in the corresponding slots (B). When the upper shell (9) and the lower shell (8) are fastened together, the bottom of the partitions (7) abuts against the surface of the PCB (1).

2. The cable connector housing with shielding barrier according to claim 1, characterized in that... The top plate (901) has several parallel heat dissipation fins (903) fixed on its outer surface, and the distribution direction of these heat dissipation fins (903) is consistent with that of the partition (7).

3. The cable connector housing with shielding barrier according to claim 1, characterized in that: The cable (4) is a differential signal cable, with a pair of signal conductors (5) leading out from its front end, and a pair of signal pads (2) are provided in the pad area (A) respectively, which are soldered to the same pair of signal conductors (5).

4. The cable connector housing with shielding barrier according to claim 3, characterized in that: A pair of grounding wires (6) are led out from the front end of the cable (4), and a pair of grounding pads (3) are provided in the pad area (A) respectively, which are welded to the same pair of grounding wires (6).

5. A cable connector housing with a shielding barrier according to claim 1, 3, or 4, characterized in that: Within each row of pad areas (A), the rear end of the cable (4) connecting the front pad area (A) passes over the cable (4) connecting the rear pad area (A) from above.

6. A cable connector housing with a shielding barrier according to claim 1, 3, or 4, characterized in that: The N=4, and the number of pads (A) in each column of pads (A) is two.

7. A cable connector housing with shielding partition according to claim 1, characterized in that... The partition (7) is integrally formed on the inner surface of the top plate (901).

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