Cable connector assemblies

Abstract

The present invention discloses a cable connector assembly, which includes an electrical connector, a circuit board electrically connected to the electrical connector, and a cable electrically connected to the circuit board, the circuit board including a first row of gaskets welded to the cable and a second row of gaskets located behind the first row of gaskets and separated from the first row of gaskets, the cable including a plurality of coaxial cables and single-core wires, the coaxial cables including a center conductor and a shielding layer, the single-core wire including a conductor, the center conductor of the coaxial cable being welded to the first row of gaskets on the circuit board, the conductor of the single-core wire and the shielding layer of the coaxial cable being welded to the second row of gaskets on the circuit board, the cable connector assembly of the present invention moves the coaxial cable forward, increases the welding space of the shielding layer, shortens the signal transmission path of the coaxial cable, improves the high-speed signal transmission performance of the coaxial cable, and at the same time reduces the overall space of the cable connector assembly.

Description

Technical field

[0001] The present invention relates to a cable connector assembly, and more particularly to a cable connector assembly including a circuit board. [Background Technology]

[0002] Please refer to Chinese invention patent No. CN105702327A published on February 26, 2019, which discloses a cable connector assembly, which includes an electrical connector, a circuit board electrically connected to the electrical connector, and a cable electrically connected to the circuit board. The rear side of the circuit board is provided with a welding piece connected to the cable. The cable includes a plurality of coaxial cables and single-core wires. The coaxial cables can transmit high-speed signals. All the cables are soldered side by side to the same row of welding pieces on the circuit board. The tight arrangement of the cables may easily lead to the possibility of empty soldering. In addition, the signal transmission path on the circuit board is too long, which affects the performance of signal transmission. At the same time, the overall space of the cable connector assembly is large, so it is necessary to provide an improved cable connector assembly. [Summary of the invention]

[0003] The main purpose of the present invention is to provide a cable connector assembly, which makes the cable soldered on the circuit board reliable and the coaxial line has a shorter transmission distance on the circuit board, thereby increasing the high-speed signal transmission performance of the coaxial line. In addition, the space of the entire cable connector assembly is small.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a cable connector assembly, comprising an electrical connector, a circuit board electrically connected to the electrical connector, and a cable electrically connected to the circuit board, the circuit board comprising a first row of gaskets welded to the cable and a second row of gaskets located behind the first row of gaskets and separated from the first row of gaskets, the cable comprising a plurality of coaxial cables and single-core wires, the coaxial cable comprising a center conductor and a shielding layer, the single-core wire comprising a conductor, the center conductor of the coaxial cable being welded to the first row of gaskets on the circuit board, the conductor of the single-core wire and the shielding layer of the coaxial cable being welded to the second row of gaskets on the circuit board.

[0005] Furthermore, the circuit board further includes electronic components, and the electronic components are at least partially arranged between the first row of pads on the circuit board.

[0006] Furthermore, the coaxial line includes a first coaxial line and a second coaxial line, the radial dimension of the first coaxial line is larger than the radial dimension of the second coaxial line, and the rate of signals transmitted by the first coaxial line is larger than the rate of signals transmitted by the second coaxial line.

[0007] Furthermore, the second coaxial line is located outside the first coaxial line on the circuit board.

[0008] Furthermore, the left and right side edges of the second row of gaskets extend outwards beyond the corresponding side edges of the circuit board.

[0009] Furthermore, the circuit board includes a first surface and a second surface opposite to the first surface, the first surface and the second surface both include the first row of gaskets and the second row of gaskets, and the coaxial line and the single core line are symmetrically arranged on the first surface and the second surface of the circuit board.

[0010] Furthermore, the electrical connector includes a docking end for docking with the docking connector, and the docking end can dock with the docking connector in two opposite directions.

[0011] To achieve the above object, the present invention may also adopt the following technical solutions:

[0012] A method for manufacturing a cable connector assembly, characterized by comprising the following steps:

[0013] providing electrical connectors;

[0014] Providing a circuit board electrically connectable to an electrical connector, the circuit board comprising a first row of pads and a second row of pads located behind the first row of pads and spaced apart from the first row of pads;

[0015] Providing a cable, the cable comprising a plurality of coaxial lines and single core wires, the coaxial lines comprising a central conductor and a shielding layer, the single core wire comprising a conductor;

[0016] soldering the center conductor of the coaxial line to the first row of pads of the circuit board at one time;

[0017] The shielding layer of the coaxial line and the conductor of the single core wire are welded to the second row of pads of the circuit board at one time.

[0018] Furthermore, a cable management block is provided, wherein the cable management block comprises a hole passing through the cable management block, and the cable is fixed to the hole of the cable management block before welding.

[0019] Furthermore, the circuit board includes a first surface and a second surface opposite to the first surface, the first surface and the second surface both include the first row of gaskets and the second row of gaskets, and the coaxial line and the single core line are symmetrically arranged on the first surface and the second surface of the circuit board.

[0020] Compared with the prior art, the advantages of the present invention are: while improving welding stability, the present invention also improves the high-speed signal transmission performance of the coaxial line, and effectively reduces the overall space of the cable connector assembly.

Brief Description of the Drawings

[0021] Figure 1It is a three-dimensional diagram of the cable connector assembly of the present invention.

[0022] Figure 2 yes Figure 1 A partially exploded view of the cable connector assembly is shown.

[0023] Figure 3 yes Figure 1 A further partially exploded view of the cable connector assembly is shown.

[0024] Figure 4 yes Figure 3 An exploded view of the cable connector assembly from another perspective is shown.

[0025] Figure 5 yes Figure 3 A further partially exploded view of the cable connector assembly is shown.

[0026] Figure 6 yes Figure 5 An exploded view of the cable connector assembly from another perspective is shown.

[0027] Figure 7 yes Figure 3 A top view of the cable connector assembly is shown with the housing and inner mold removed.

[0028] Figure 8 yes Figure 7 A bottom view of the cable connector assembly is shown.

[0029] Figure 9 yes Figure 1 A three-dimensional view of the electrical connector and circuit board of the cable connector assembly is shown.

[0030] Figure 10 yes Figure 9 A perspective view of the cable connector assembly from another perspective is shown.

[0031]

Main component symbol description

[0032] Cable connector assembly 100 Electrical connector 10

[0033] Butt end 11 Insulation body 12

[0034] Conductive terminal 13 Metal housing 14

[0035] Circuit board 20 first side 21

[0036] Second surface 22 Side surface 23

[0037] Terminal gasket 211 First row gasket 213

[0038] Second row of gaskets 215 Electronic components 26

[0039] First gasket 2131 Second gasket 2132

[0040] Conductor gasket 2151 Grounding gasket 2152

[0041] Cable 30 Core 31

[0042] Coaxial line 32 Single core line 35

[0043] Center conductor 320 Inner insulation layer 323

[0044] Shielding layer 325 Outer insulation layer 327

[0045] The first coaxial line 322 The second coaxial line 324

[0046] Conductor 350 Insulation layer 351

[0047] Power core line 353 Low-speed signal line 355

[0048] Metal shell 40 inner mold 50

[0049] Insulation housing 60 Cable management block 70

[0050] Upper cable management block 71 hole 721

[0051] Lower cable management block 72

[0052] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0053] Please refer to Figures 1 to 10 As shown, the cable connector assembly 100 of the present invention can mate with a docking connector in two opposite directions. The cable connector assembly 100 includes an electrical connector 10, a circuit board 20 electrically connected to the electrical connector 10, a cable 30 electrically connected to the circuit board 20, a metal housing 40 covering the rear of the electrical connector 10 and the front of the cable 30 and accommodating the circuit board 20, an inner mold 50 covering the rear of the metal housing 40 and the front of the cable 30, an insulating housing 60 disposed on the exterior of the metal housing 40 and the front of the inner mold 50, and a cable management block 70 for positioning the cable 30. The cable connector assembly 100 complies with the Thunderbolt 3.0 specification, and its transmission speed per channel can reach 10Gbps or even higher.

[0054] The electrical connector 10 includes a mating end 11 that can mate with a mating connector in both forward and reverse directions. The electrical connector 10 includes an insulating body 12, a plurality of conductive terminals 13 retained within the insulating body 12, and a metal housing 14 disposed outside the insulating body 12. The conductive terminals 13 include an upper row of conductive terminals and a lower row of conductive terminals.

[0055] The cable 30 includes a plurality of core wires 31, each of which includes a coaxial wire 32 and a single core wire 35. The coaxial wire 32 structurally includes a center conductor 320, an inner insulating layer 323 covering the center conductor 320, a shielding layer 325 covering the inner insulating layer 323, and an outer insulating layer 327 formed outside the shielding layer 325. The coaxial wires 32 include a first type of coaxial wire 322 and a second type of coaxial wire 324. The radial dimension of the first type of coaxial wire 322 is greater than the radial dimension of the second type of coaxial wire 324, that is, the cross-sectional diameter of the first type of coaxial wire 322 is greater than the cross-sectional diameter of the second type of coaxial wire 324. The signal rate transmitted by the first type of coaxial wire 322 is greater than the signal rate transmitted by the second type of coaxial wire 324. In this embodiment, the first type of coaxial wire 322 is a high-speed signal line for transmitting high-speed signals. It includes four pairs of coaxial wires, each pair of which can be used to transmit a pair of differential signals, and can transmit four pairs of high-speed differential signals. The second type of coaxial cable 324 is a low-speed signal line for transmitting low-speed signals. The single core wire 35 includes a conductor 350 and an insulating layer 351 covering the outside of the conductor 350. The single core wire 35 includes a power core wire 353 for transmitting power and a low-speed signal line 355 for transmitting USB2.0 signals. The cable connector assembly 100 also includes a wire management block 70 for fixing a plurality of core wires 31. The wire management block 70 includes an upper wire management block 71 and a lower wire management block 72 that cooperates with the upper wire management block 71. The upper wire management block 71 and the lower wire management block 72 both include holes 721 that pass through the wire management block 70 in the front-to-back direction. Before being soldered to the circuit board 20, the cables 30 are first divided into two upper and lower rows, and pass through the corresponding holes 721 of the upper wire management block 71 and the lower wire management block 72, respectively. The cables 30 are then fixed to the upper wire management block 71 and the lower wire management block 72 by processes such as dispensing glue. The front end of the cable 30 passes through the hole 721 of the cable management block 70 and is exposed at the front end of the cable management block 70 , so as to facilitate soldering of the cable 30 to the circuit board 20 .

[0056] The circuit board 20 includes a first surface 21, a second surface 22 opposite to the first surface 21, and two side surfaces 23 connecting the first surface 21 and the second surface 22. The first surface 21 and the second surface 22 of the circuit board 20 each include a row of terminal gaskets 211 at the front end, a first row of gaskets 213 behind the terminal gaskets 211, and a second row of gaskets 215 behind the first row of gaskets 213. The second row of gaskets 215 is spaced apart from the first row of gaskets 213. A plurality of electronic components 26 are also provided on the circuit board 20, and the electronic components 26 are at least partially provided between the first row of gaskets 213 on the circuit board 20. In this embodiment, the electronic components 26 are located in the middle of the first row of gaskets 213. The upper row of conductive terminals and the lower row of conductive terminals are respectively welded to the terminal gaskets 211. The first row of gaskets 213, located on the first side 21 and the second side 22 of the circuit board 20, respectively, includes first gaskets 2131 located on both sides of the electronic component 26 and second gaskets 2132 located outside the first gaskets 2131. The second gaskets 2132 are located on both sides of the outermost area in the transverse direction of the circuit board 20. The second row of gaskets 215, located on the first side 21 and the second side 22 of the circuit board 20, includes a conductor gasket 2151 located in the middle and grounding gaskets 2152 located on both sides of the conductor gasket 2151. The grounding gaskets 2152 on both sides are connected to form a single unit. The grounding gaskets 2152 on both sides extend outward beyond the corresponding side edges 24 of the circuit board 20. The first gaskets 2131 and the second gaskets 2132 are symmetrically arranged in the first row of gaskets 213 on the first side 21 and the second side 22 of the circuit board 20. The conductor pads 2151 and the grounding pads 2152 are symmetrically arranged in the second row of pads 215 on the first surface 21 and the second surface 22 of the circuit board 20 .

[0057] The center conductor 320 of the coaxial cable 32 is soldered to the first row of pads 213. Furthermore, the center conductor 320 of the first type coaxial cable 322 is soldered to the first pad 2131, while the center conductor 320 of the second type coaxial cable 324 is soldered to the second pad 2132. Thus, the second type coaxial cable 324 is located outside the first type coaxial cable 322 on the circuit board 20. Because the first type coaxial cable 322 is used to transmit high-speed signals, which are transmitted as differential pairs, the first type coaxial cables 322 are arranged in pairs. The horizontal arrangement of the coaxial cables 32 on the circuit board 20 is: second type coaxial cable 324, a pair of first type coaxial cables 322, a pair of first type coaxial cables 322, and finally, second type coaxial cable 324. The conductor 350 of the single-core wire 35 and the shield 325 of the coaxial cable 32 are soldered to the second row of gaskets 215. Furthermore, the conductor 350 of the single-core wire 35 is soldered to the conductor gasket 2151 in the middle position, and the shield 325 of the coaxial cable 32 is soldered to the grounding gasket 2152. Thus, the single-core wire 35 is soldered to the middle position of the circuit board 20. The coaxial cable 32 and the single-core wire 35 are symmetrically arranged on the first side 21 and the second side 22 of the circuit board 20. Specifically, where the coaxial cable 32 is soldered to the first side 21, the coaxial cable 32 is also soldered to the opposite second side 22. Where the single-core wire 35 is soldered to the first side, the single-core wire 35 is also soldered to the opposite second side 22. The first coaxial line 322 and the second coaxial line 324 are symmetrically arranged on the first surface 21 and the second surface 22 of the circuit board 20, that is, the position where the first coaxial line 322 is welded on the first surface 21 of the circuit board 20 is also corresponding to the position where the first coaxial line 322 is welded on the opposite second surface 22, and the position where the second coaxial line 324 is welded on the first surface 21 is also corresponding to the position where the second coaxial line 324 is welded on the opposite second surface 22.

[0058] The grounding pads 2152 extend outward beyond the corresponding side edges 24 of the circuit board 20, increasing the area of the grounding pads 2152. This provides ample contact area for the shielding layer 325 when soldered to the grounding pads 2152, preventing cold solder joints in the shielding layer 325. This improves soldering quality, grounding effectiveness, and soldering stability. Furthermore, when electronic components 26 are present on the circuit board 20, the cable 30 is soldered in two rows, front and back: the coaxial cable 32 is soldered to the first row of pads 213, and the single-core cable 35 and the shielding layer 325 of the coaxial cable 32 are soldered to the second row of pads 215. This not only increases the soldering space for the cable 30 on the circuit board 20, but also reduces the overall space of the cable connector assembly 100, making the overall structure of the cable connector assembly 100 more compact. Because high-speed signals are transmitted on the coaxial cable 32, soldering the center conductor 320 of the coaxial cable 32 to the first row of pads 213, which is closer to the electrical connector 10, shortens the high-speed signal transmission path within the circuit board 20, effectively improving high-speed signal transmission performance.

[0059] The cable connector assembly 100 assembly method includes the following steps:

[0060] The electrical connector 10 is provided.

[0061] The circuit board 20 is provided.

[0062] The cable 30 is provided.

[0063] Provide the cable management block 70. Arrange the cables 30 into upper and lower rows, respectively, and pass them through the corresponding holes 721 of the upper and lower cable management blocks 71 and 72, respectively. Expose the cables 30 to the front end of the cable management block 70. Align the front ends of the coaxial cables 32 so that the length of the coaxial cables exposed to the front end of the cable management block 70 remains consistent, and arrange the coaxial cables 32 side by side. Secure the single-core wire 35 conductors and the coaxial cable shield 325 in the same row, and secure the cables 30 to the cable management block 70.

[0064] The central conductors 320 of the coaxial cables 32 of the upper row of cables are simultaneously soldered to the first row of pads 213 on the first surface 21 of the circuit board 20 .

[0065] The shielding layer 325 of the coaxial line 32 of the upper row of cables and the conductor 350 of the single core line 35 of the upper row of cables are simultaneously soldered to the second row of pads 215 on the first side 21 of the circuit board 20 .

[0066] The central conductors 320 of the coaxial cables 32 of the lower row of cables are simultaneously soldered to the first row of pads 213 on the second surface 22 of the circuit board 20 .

[0067] The shielding layer 325 of the coaxial line 32 of the lower cable and the conductor 350 of the single core line 35 of the lower cable are simultaneously soldered to the second row of pads 215 on the second surface 22 of the circuit board 20 .

[0068] In the present invention, the shielding layer 325 of the coaxial line 32 and the conductor 350 of the single core line 35 are arranged in the same row. During welding, the shielding layer 325 and the conductor 350 of the single core line 35 can be welded to the circuit board 20 at the same time, which reduces the welding time.

[0069] The above is only one embodiment of the present invention, not all or the only embodiment. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. A cable connector assembly comprising an electrical connector, a circuit board electrically connected to the electrical connector, and a cable electrically connected to the circuit board, wherein the circuit board comprises a first row of gaskets and a second row of gaskets located behind and separated from the first row of gaskets, the cable comprising a plurality of coaxial cables and single-core wires, the coaxial cables comprising a center conductor and a shielding layer, and the single-core wires comprising a conductor, characterized in that: The center conductor of the coaxial line is soldered to the first row of gaskets on the circuit board, the conductor of the single-core wire and the shielding layer of the coaxial line are soldered to the second row of gaskets on the circuit board, and the left and right side edges of the second row of gaskets extend outward beyond the corresponding side edges of the circuit board. Electronic components are also provided on the circuit board, and the electronic components are at least partially provided between the first row of gaskets on the circuit board.

2. The cable connector assembly according to claim 1, wherein: The coaxial lines include a first coaxial line and a second coaxial line. The radial dimension of the first coaxial line is larger than that of the second coaxial line. The rate of signals transmitted by the first coaxial line is larger than that of signals transmitted by the second coaxial line.

3. The cable connector assembly according to claim 2, wherein: The second coaxial line is located outside the first coaxial line on the circuit board.

4. The cable connector assembly according to claim 1, wherein: The circuit board includes a first surface and a second surface opposite to the first surface, the first surface and the second surface both include the first row of gaskets and the second row of gaskets, and the coaxial line and the single core line are symmetrically arranged on the first surface and the second surface of the circuit board.

5. The cable connector assembly according to claim 1, wherein: The electrical connector includes a docking end for docking with the docking connector, and the docking end can dock with the docking connector in two opposite directions.

6. A method for manufacturing a cable connector assembly, characterized in that The steps include: providing electrical connectors; Providing a circuit board electrically connectable to an electrical connector, the circuit board comprising a first row of pads and a second row of pads located behind the first row of pads and spaced apart from the first row of pads; Providing a cable, the cable comprising a plurality of coaxial lines and single core wires, the coaxial lines comprising a central conductor and a shielding layer, the single core wire comprising a conductor; soldering the center conductor of the coaxial line to the first row of pads of the circuit board at one time; The shielding layer of the coaxial cable and the conductor of the single-core wire are welded to the second row of gaskets of the circuit board at one time, and the left and right side edges of the second row of gaskets extend outward beyond the corresponding side edges of the circuit board. Electronic components are also provided on the circuit board, and the electronic components are at least partially provided between the first row of gaskets on the circuit board.

7. The method for manufacturing a cable connector assembly according to claim 6, wherein: A cable management block is provided, wherein the cable management block includes a hole passing through the cable management block, and the cable is fixed to the hole of the cable management block before welding.

8. The method for manufacturing a cable connector assembly according to claim 7, wherein: The circuit board includes a first surface and a second surface opposite to the first surface. The first surface and the second surface both include the first row of gaskets and the second row of gaskets. The coaxial line and the single core line are symmetrically arranged on the first surface and the second surface of the circuit board.

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