A high speed data cable assembly

Abstract

The application relates to a high-speed data cable assembly, which comprises a cable, connectors connected to two ends of the cable respectively, the cable comprising an outer sheath layer and power lines, signal line groups and filling ropes wrapped by the outer sheath layer; the middle section of the cable is a spring section formed by the power lines, the signal line groups, the filling ropes and the outer sheath layer in a cylindrical spiral spring shape, the spring section has a central axis, the central axis coincides with the axis of the cylindrical spiral spring shape of the spring section, the spring section has a set elastic expansion and contraction amount along the central axis and a set elastic torsion amount around the central axis. The high-speed data cable assembly provided by the application saves the occupied space when the cable is contracted, does not generate noise due to friction when being stretched and contracted, and the signal line groups have the performance of high-speed signal transmission, thereby meeting the requirements of signal transmission and being suitable for high-speed signal connection and power connection on dynamic mechanisms in the automobile interior.

Description

TECHNICAL FIELD

[0001] The present application relates to a cable assembly, in particular to a high-speed data cable assembly. BACKGROUND

[0002] The cable assembly, also known as connector harness, is composed of a cable and a connector (i.e. a terminal), the cable assembly with a high-speed data connector is usually applied to the vehicle-mounted audio and video entertainment system, head-up display, streaming media, central control screen, T-BOX, USB module, etc. on the vehicle for transmitting high-speed digital signals. While ensuring the high-speed and high-quality transmission of signals, one or more groups of power terminals are required to supply power to the electrical device terminals. However, the current same type of electrical terminals need to be connected to multiple independent cables, including power cables and signal cables for transmitting high-speed signals. These cable assemblies will occupy a lot of space when bundled.

[0003] On the other hand, with the development of intelligent technology in vehicles, there are more and more dynamic systems on vehicles, such as rotatable or movable vehicle screen or instrument panel, rotatable camera or radar, etc. The traditional high-speed cable assembly, including coaxial radio frequency assembly and differential assembly, usually adopts a common cable structure. When applied to such dynamic mechanisms, the cable often cannot withstand thousands of times of movement, stretching, compression or twisting, which eventually leads to damaged signal quality and even failure. SUMMARY

[0004] The purpose of the present application is to provide a high-speed data cable assembly to solve the problem of large space occupation and poor resistance to passive forced movement after bundling in the prior art.

[0005] The high-speed data cable assembly of the present application comprises a cable, the two ends of the cable being connected to connectors respectively, the cable comprising an outer sheath layer and a power cable, a signal cable group and a filler rope wrapped by the outer sheath layer; the signal cable group comprising an outer skin layer and signal cables wrapped by the outer skin layer, the signal cables comprising signal cable insulation layers and signal conductors; the power cable comprising power cable insulation layers and power conductors; the connector comprising a plastic shell, a signal terminal group and a power terminal, the signal terminal group comprising metal inner conductors, the metal inner conductors and the power terminal being connected to the corresponding signal conductors and power conductors in the cable respectively; the middle section of the cable is a spring section formed by the power cable, the signal cable group, the filler rope and the outer sheath layer being integrally molded into a cylindrical spiral spring shape, the spring section having a central axis, the central axis coinciding with the axis of the cylindrical spiral spring shape of the spring section, the spring section having a set elastic expansion amount along the central axis and a set elastic torsion amount around the central axis.

[0006] The high-speed data cable assembly provided by the application can be connected with corresponding connectors at both ends, and the middle section of the cable is integrally molded into a cylindrical spiral spring shape and has an elastic spring section, the cable integrated power line and signal line group in this section are made into the spring section together with the filler rope and the outer sheath layer, and the spring section can be set to have a set pitch and outer diameter and can be adjusted as required to allow stretching, compression and movement in a certain size range in the axial direction of the central axis or torsion in the rotation direction around the central axis to meet different application scenarios such as product stretching or contraction, the spring section saves the occupied space when the cable is contracted, and noise is not generated due to friction when the cable is stretched and contracted, and the signal line group has the performance of high-speed signal transmission to meet the requirements of signal transmission, and is suitable for high-speed signal connection and power connection on dynamic mechanisms in the automobile interior.

[0007] Further, the two end sections of the cable are connection sections in a straight shape to facilitate connection with the connectors, and the extension direction of the connection sections is parallel to the central axis.

[0008] Further, the filler rope is at least one of cotton thread, paper thread, aramid fiber thread and steel wire.

[0009] Further, the signal line group further comprises a shielding layer between the outer skin layer and the signal line.

[0010] Further, the shielding layer comprises a meshed woven conductor layer and a coiled aluminum foil layer.

[0011] Further, the signal line group further comprises a filler between the shielding layer and the signal line.

[0012] Further, the plastic shell body is provided with mounting cavities for mounting the signal terminal group and the power terminal respectively, i.e., a first mounting cavity and a second mounting cavity, and the plastic shell body further comprises a first locking member and a second locking member adapted to the first mounting cavity and the second mounting cavity respectively, and the first locking member and the second locking member are inserted into the adapted mounting cavities through the holes provided on the surface of the plastic shell body to fix the signal terminal group and the power terminal mounted in the mounting cavities.

[0013] Further, the signal terminal group further comprises a metal outer conductor and an insulator fixed in the metal outer conductor, and the metal inner conductor is inserted into the mounting hole provided in the insulator.

[0014] Further, a crimping sleeve is further provided, and the metal inner conductor is connected with the corresponding signal wire in the cable through crimping of the crimping sleeve.

[0015] Further, a crimping sleeve is further provided, and the power terminal is connected with the corresponding power wire in the cable through crimping of the crimping sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the high-speed data cable assembly of the present invention;

[0017] Figure 2 yes Figure 1 A schematic diagram of the cables in the diagram;

[0018] Figure 3 yes Figure 1 An exploded view of the components of the connector in the diagram;

[0019] Figure 4 yes Figure 1 A schematic diagram of the cross-section of the cable in the diagram;

[0020] Figure 5 yes Figure 4 A schematic diagram of the cross-section of the signal line group in the diagram;

[0021] Figure 6 This is a cross-sectional schematic diagram of the signal line group in Embodiment 2 of the high-speed data cable assembly of the present invention;

[0022] Figure 7 This is a cross-sectional schematic diagram of the signal line group in Embodiment 3 of the high-speed data cable assembly of the present invention;

[0023] Figure 8 This is a cross-sectional schematic diagram of the signal line group in Embodiment 4 of the high-speed data cable assembly of the present invention;

[0024] Figure 9 This is a cross-sectional schematic diagram of the signal line group in Embodiment 5 of the high-speed data cable assembly of the present invention;

[0025] Figure 10 This is a cross-sectional schematic diagram of the signal line group in Embodiment 6 of the high-speed data cable assembly of the present invention;

[0026] In the picture:

[0027] 1. Connector; 11. Plastic housing; 12. Power terminal; 13. First locking element; 14. Second locking element; 2. Cable; 21. Spring segment; 3. Outer sheath layer; 4. Power cord; 5. Signal wire assembly; 50. Shielding layer; 51. Outer sheath layer; 52. Conductor layer; 53. Aluminum foil layer; 54. Signal wire insulation layer; 55. Signal wire; 56. Filler; 6. Filler cord; 7. Crimping sleeve; 8. Metal outer conductor; 9. Metal inner conductor; 10. Insulator. Detailed Implementation

[0028] Embodiment 1 of the high-speed data cable assembly of the present invention is an integrated cable assembly 2 for the automotive industry, such as...Figures 1-5 As shown, the connector 1 and the cable 2 are included.

[0029] The cable 2 in this embodiment includes an outer sheath layer 3, a power line 4, a signal line group 5, a filling string 6, the outer sheath layer 3 wrapping the filling string 6, the power line 4, and the signal line group 5. The cable 2 is connected to the connector 1 at both ends, the two ends of the cable 2 are connection sections, the connection sections are in a straight line shape to facilitate connection with the connector 1, and the middle section of the cable 2 is a spring section 21 which is integrally molded into a cylindrical spiral spring shape and has elasticity. The cable 2 integrates the power line 4 and the signal line group 5, and is made together with the filling string 6 and the outer sheath layer 3 into a spring section 21 that allows stretching, compression, movement or twisting within a certain size range, the spring section 21 has a set pitch and outer diameter, and can be adjusted according to needs to meet different application scenarios such as product stretching or contraction, accordingly, the smaller the pitch and the larger the outer diameter, the better the overall elasticity and stretch resistance.

[0030] The signal line group 5 includes an outer skin layer 51, a shielding layer 50, and signal lines. Each signal line includes a signal line insulating layer 54 and a signal conductor 55, and the shielding layer 50 includes a meshed woven conductor layer 52 and a coiled aluminum foil layer 53. The signal lines in this embodiment are four-core. In other embodiments, the signal lines of the signal line group 5 can be single-core, double-core, three-core, more than four-core, etc. with or without the shielding layer 50.

[0031] The filling string 6 is cotton in this embodiment, and can be paper string, aramid fiber string, steel wire in other embodiments.

[0032] The power line 4 includes a power line insulating layer and a power conductor; in this embodiment, the power line 4 has two, in other embodiments, the power line 4 in the cable 2 can be matched with different numbers such as 4, 6, etc. according to needs.

[0033] The connector 1 includes a plastic shell 11, a signal terminal group, a power terminal 12, and a locking piece, the signal terminal group includes a metal outer conductor 8, an insulator 10 fixed in the metal outer conductor 8, and a metal inner conductor 9 inserted into the internal mounting hole of the insulator 10, the metal inner conductor 9 and the power terminal 12 are respectively connected to the corresponding signal conductor 55 and power conductor in the cable 2, the connection mode is crimping, and a crimping sleeve 7 is used during crimping. In this embodiment, the metal inner conductor 9 in the signal terminal group corresponds to the above-mentioned four signal lines, in other embodiments, as mentioned above, the number of metal inner conductors 9 can be one or two, three, or more than four corresponding to the number of signal lines.

[0034] The plastic shell 11 is provided with different mounting cavities for mounting the signal terminal group and the power terminal 12 respectively, i.e., a first mounting cavity and a second mounting cavity, and further comprises a first locking member and a second locking member respectively matched with the first mounting cavity and the second mounting cavity, which are inserted into the matched mounting cavities through the holes on the surface of the plastic shell 11 to fix the signal terminal group and the power terminal 12 mounted in the mounting cavities.

[0035] In use, the cable 2 of the above-mentioned embodiments of the present application integrates the power line 4 and the signal line group 5, and together with the filling rope 6 and the outer sheath layer 3, forms a spring section 21 allowing stretching, compression, movement or torsion within a certain size range, which saves the occupied space when the cable 2 is contracted, and does not generate noise due to friction when stretched and contracted, and meanwhile, the signal line group 5 has the performance of high-speed signal transmission, thereby meeting the requirements of signal transmission and being suitable for high-speed signal connection and power connection on dynamic mechanisms in the automobile interior.

[0036] Embodiment 2 of the high-speed data cable assembly of the present application, as shown in Figure 6 is different from embodiment 1 in that the signal lines in the signal line group 5 in the cable 2 are two.

[0037] Embodiment 3 of the high-speed data cable assembly of the present application, as shown in Figure 7 is different from embodiment 1 in that the signal lines in the signal line group 5 in the cable 2 are two, and a filler 56 is further provided between the shielding layer 50 and the signal lines, which can be cotton thread, paper thread, aramid fiber thread or steel wire.

[0038] Embodiment 4 of the high-speed data cable assembly of the present application, as shown in Figure 8 is different from embodiment 1 in that the signal lines in the signal line group 5 in the cable 2 are two, and the shielding layer is omitted.

[0039] Embodiment 5 of the high-speed data cable assembly of the present application, as shown in Figure 9 is different from embodiment 1 in that the signal lines in the signal line group 5 in the cable 2 are two, and the shielding layer is omitted, but a filler 56 is further provided between the outer sheath layer 51 and the signal lines, which can be cotton thread, paper thread, aramid fiber thread or steel wire.

[0040] Embodiment 6 of the high-speed data cable assembly of the present application, as shown in Figure 10 is different from embodiment 1 in that the signal lines in the signal line group 5 in the cable 2 are one.

Claims

1. A high speed data cable assembly comprising a cable and connectors connected to both ends thereof, characterized in that, The cable comprises an outer sheath layer and a power line, a signal line group, and a filler string wrapped by the outer sheath layer; the signal line group comprises an outer skin layer and signal lines wrapped by the outer skin layer, and the signal lines comprise signal line insulating layers and signal conductors; the power line comprises a power line insulating layer and a power conductor; the connector comprises a plastic shell, a signal terminal group, and a power terminal, the signal terminal group comprises a metal inner conductor, and the metal inner conductor and the power terminal are respectively connected to corresponding signal conductors and power conductors in the cable; a middle section of the cable is a spring section formed by the power line, the signal line group, the filler string, and the outer sheath layer being integrally molded into a cylindrical spiral spring shape, the spring section has a central axis, the central axis coincides with an axis of the cylindrical spiral spring shape of the spring section, and the spring section has a set elastic extension amount along the central axis and a set elastic torsion amount around the central axis; the plastic shell is provided with a signal terminal group mounting cavity and a power terminal mounting cavity for mounting the signal terminal group and the power terminal respectively, and the plastic shell further comprises a signal terminal group locking piece and a power terminal locking piece corresponding to the signal terminal group mounting cavity and the power terminal mounting cavity respectively, the signal terminal group locking piece and the power terminal locking piece are inserted into the corresponding mounting cavities through the holes provided at the radial positions of the corresponding terminals on the surface of the plastic shell to fix the signal terminal group and the power terminal mounted in the mounting cavities.

2. The high speed data cable assembly of claim 1, wherein, The two end sections of the cable are connection sections in straight line shapes for facilitating connection with the connector, and the extension direction of the connection sections is parallel to the central axis.

3. The high speed data cable assembly of claim 1, wherein, The filler string is at least one of a cotton string, a paper string, an aramid fiber string, and a steel wire.

4. The high speed data cable assembly of claim 1, wherein, The signal line group further comprises a shielding layer between the outer skin layer and the signal lines.

5. The high speed data cable assembly of claim 4, wherein, The shielding layer comprises a mesh-woven conductor layer and a coiled aluminum foil layer.

6. The high speed data cable assembly of claim 5, wherein, The signal line group is further provided with a filler between the shielding layer and the signal lines.

7. The high speed data cable assembly of any of claims 1-6, wherein, The signal terminal group further comprises a metal outer conductor and an insulator fixed in the metal outer conductor, and the metal inner conductor is inserted into a mounting hole provided in the insulator.

8. The high speed data cable assembly of claim 7, wherein, The metal inner conductor is connected to the corresponding signal conductor in the cable through crimping of a crimping sleeve.

9. The high speed data cable assembly of claim 7, wherein, The power terminal is connected to the corresponding power conductor in the cable through crimping of a crimping sleeve.

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