TWI740317B - Cable structure of electric connector - Google Patents

Abstract

The present invention relates to a cable structure of an electrical connector. It has a cable body. The cable body mainly includes: a set of coaxial signal lines arranged in a ring shape, a set of functional lines arranged outside the set of coaxial signal lines, and a linear arrangement The ground wire group arranged inside the coaxial signal wire group, the differential signal wire group linearly arranged inside the coaxial signal wire group, and the separation formed by the ground wire group and the differential signal wire group defined inside the coaxial signal wire group Zones, and power cord sets separately arranged in each compartment. Among them, each coaxial signal line of the coaxial signal line group is formed by covering the core part, the insulating part, the grounding part and the protective layer from the inner to the outer layer. In this way, the layer-by-layer coating structure of the coaxial signal line group is used to achieve the benefits of the self-provided signal isolation function of the high-frequency signal line, and the positional relationship between the ground line group and the power line group in the cable body is reduced, that is, the problem of crosstalk interference is reduced .

Description

Cable structure of electrical connector

The present invention is to provide a cable structure of an electrical connector, in particular to a coaxial signal line that uses the characteristics of the grounding wire and the power line to produce an isolation effect in a special arrangement in the cable body, and at the same time is covered with layers of coaxial signal lines The cable structure of the electrical connector is designed to design high-frequency signal lines and greatly reduce the interference problem of the cable body end.

According to the convenience of high-speed transmission and no directionality problems, the use of USB Type C connectors has gradually become popular, and such connectors often increase the number of terminals through the upper and lower rows of terminals. At this time, if the upper and lower rows are directly connected The combination of row terminal and cable welding is prone to mutual interference. Therefore, its double-row design and large number of terminals are also accompanied by serious interference problems. Of course, the cable connected to the USB Type C connector also has hidden interference problems.

Generally speaking, no matter how many cables of electrical connectors, how many functions or signal lines with different polarities are inside, they are irregularly wound and fixed in the insulating sheath, so very serious interference will inevitably occur inside the cable. Problem, but cables are generally far away from electronic devices, and most of the interference signal strength is inversely proportional to the square of the distance, so most people do not care about the interference in the cable. As everyone knows, the signal quality of wired signal transmission is related to the cable. If the signal quality at the source is distorted, it will be too late even if the electrical connector is designed with perfect protection.

In addition, because the circuit board is placed between the terminal and the cable, as a traditional method of connecting the USB Type C connector terminal and the cable, when the signal passes through the circuit board, it will inevitably cause the signal attenuation, and when it is used for a long time , It will also accumulate heat energy on the circuit board, causing the circuit board to overheat, and even the signal transmission path is elongated by the circuit board, causing the problem of excessive voltage drop.

Therefore, how to solve the interference problem in the cable, and even solve the problems and deficiencies caused by the circuit board, is the direction that the creator of the present invention and the related manufacturers engaged in this industry are eager to study and improve.

Therefore, in view of the above-mentioned deficiencies, the creator of the present invention collected relevant information, evaluated and considered from many parties, and based on the accumulated years of experience in this industry, through continuous trials and modifications, he designed this kind of grounding wire and power supply. The characteristics of the cable, the isolation effect is produced in the cable body in a special arrangement, and the high-frequency signal line is designed in the form of the coaxial signal line covered by layers, which greatly reduces the interference problem at the cable body end. The inventor of the cable structure.

The main purpose of the present invention is to isolate the interference between the signal lines by the arrangement of the ground line group and the power line group, and design the high-frequency signal line as a multi-layer coaxial structure, and achieve the effect of reducing interference at the cable body. .

In order to achieve the above object, the cable structure of the electrical connector of the present invention has a cable body, the cable body mainly includes: at least one set of coaxial signal lines arranged in a circular arrangement, and a set of coaxial signal lines is arranged on the outside of the coaxial signal lines. Functional line group, and the coaxial signal line has a ground line group arranged linearly, at least one differential signal line group intersecting with the arrangement direction of the ground line group, and a plurality of ground line groups and the differential signal line group. The signal line groups are divided into separate areas, and power line groups are separately arranged in each of the separate areas.

The coaxial signal line of the coaxial signal line group includes a first high-frequency signal line pair, a second high-frequency signal line pair arranged on one side of the first high-frequency signal line, and a second high-frequency signal line pair arranged on the second high-frequency signal line. The third high-frequency signal line pair on one side of the signal line pair, and a fourth high-frequency signal line pair arranged between the third high-frequency signal line pair and the first high-frequency signal line pair, and each of the coaxial signals The wire includes a core part, an insulating part covered and arranged outside the core part, a ground part covered and arranged outside the insulating part, and a protective layer covered and arranged outside the ground part, and The functional line group includes a first functional line, a second functional line set on the side of the coaxial signal line away from the first functional line, a third functional line set on the side of the first functional line, and a device The fourth function line on the side of the second function line and on the side of the coaxial signal line away from the third function line, and the ground line group includes a first ground line and a side provided on the first ground line The second ground wire, a third ground wire set on one side of the second ground wire, and a fourth ground wire set on one side of the third ground wire, and the power wire set includes a first power wire , A second power line provided on the side of the ground line set away from the first power line, a third power line provided on the side of the differential signal line set away from the first power line, and a second power line provided on the side of the differential signal line set away from the first power line The ground line group is away from the third power line and is located on the fourth power line of the differential signal line group away from the second power line.

The cable system of the present invention has a high-frequency signal line group (first to fourth high-frequency signal line pairs), a functional line group, a grounding line group, a differential signal line group, and a power supply in accordance with the specifications of the USB Type C connector Line group, the high-frequency signal line group itself is covered by the core part, insulation part, grounding part, and protective layer from the inside to the outside, so as to isolate the signal of the core part from the outside by the The frequency signal line group itself has the noise isolation effect. At the same time, the ground line group and the power line group with the noise isolation effect are arranged in a special way to produce an isolation effect inside the cable body, and reduce the signal in the cable body. Department of attenuation.

With the above-mentioned technology, a breakthrough can be made for the conventional USB Type C connector that does not consider the internal interference condition of the cable itself, so as to achieve the practical advancement of the above-mentioned advantages.

1‧‧‧Cable body

11‧‧‧Single-row cable group

111‧‧‧The first single-row cable set

112‧‧‧Second single-row cable set

121‧‧‧The first coaxial signal pair

122‧‧‧Second coaxial signal pair

2‧‧‧Coaxial cable set

20‧‧‧Coaxial cable

211‧‧‧Line Center

212‧‧‧Insulation

213‧‧‧Grounding part

214‧‧‧Protection layer

221‧‧‧The first high frequency signal line pair

222‧‧‧The second high frequency signal line pair

223‧‧‧The third high frequency signal line pair

224‧‧‧Fourth high frequency signal line pair

3‧‧‧Function line group

31‧‧‧The first functional line

32‧‧‧Second function line

33‧‧‧Third functional line

34‧‧‧Fourth functional line

4‧‧‧Ground wire set

41‧‧‧First ground wire

42‧‧‧Second Ground Wire

43‧‧‧Third ground wire

44‧‧‧Fourth ground wire

5‧‧‧Differential signal line group

6‧‧‧Power cord set

61‧‧‧First power cord

62‧‧‧Second power cord

63‧‧‧Third power cord

64‧‧‧Fourth power cord

7‧‧‧Connector body

71‧‧‧Upper insulating colloid

711‧‧‧Upper welding slot

72‧‧‧Lower insulating colloid

721‧‧‧Lower Welding Slot

73‧‧‧Circuit board

81‧‧‧Body shielding shell

82‧‧‧Connecting wire shielding shell

83‧‧‧Cable shielding shell

A‧‧‧Separated area

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is a perspective view of the cable body of the preferred embodiment of the present invention.

The third figure is a schematic plan view of the cable body of the preferred embodiment of the present invention.

The fourth figure is a schematic diagram of the welding groove connection of the preferred embodiment of the present invention.

The fifth figure is the use state diagram (1) of the preferred embodiment of the present invention.

The sixth figure is the use state diagram (2) of the preferred embodiment of the present invention.

In order to achieve the above-mentioned purposes and effects, the technical means and structure adopted by the present invention are illustrated below in detail to illustrate the characteristics and functions of the preferred embodiments of the present invention, so as to fully understand.

Please refer to the first to sixth figures, which are the three-dimensional view of the preferred embodiment of the present invention to the use state diagram (2). It can be clearly seen from the figure that the present invention has a cable body 1, and the cable Ontology 1 mainly includes:

At least one coaxial signal line group 2 arranged in a circular arrangement. The coaxial signal line 20 of the coaxial signal line group 2 includes a first high-frequency signal line pair 221 and a pair of first high-frequency signal lines 221. The second high-frequency signal line pair 222, a third high-frequency signal line pair 223 arranged on one side of the second high-frequency signal line pair 222, and a third high-frequency signal line pair 223 arranged on the third high-frequency signal line pair 223 and the first The fourth high-frequency signal line pair 224 between the high-frequency signal line pair 221, and the coaxial signal line group 2 is expanded Later, a first coaxial signal line pair 121 and a second coaxial signal line pair 122 arranged on the side of the first coaxial signal line pair 121 are defined at one end close to the connector body 7. In this embodiment, the coaxial signal line group 2 The corresponding USB Type C connector specification has two sets. The coaxial signal line set 2 in the upper row includes a first coaxial signal line pair 121 (that is, the extended portion of the first high-frequency signal line pair 221), and a first coaxial signal line pair 221. A second coaxial signal line pair 122 (that is, the extension of the second high-frequency signal line pair 222) is provided separately from a coaxial signal line pair 121, and the coaxial signal line group 2 in the lower row also includes a first coaxial signal line pair 121 (I.e. the extended portion of the third high-frequency signal line pair 223), and a second coaxial signal line pair 122 (i.e. the extended portion of the fourth high-frequency signal line pair 224) provided separately from the first coaxial signal line pair 121 , And each of the coaxial signal lines 20 includes a core portion 211, an insulating portion 212 coated and disposed outside the core portion 211, a ground portion 213 coated and disposed outside the insulating portion 212, and a coating The protective layer 214 provided outside the grounding portion 213;

A functional line set 3 arranged on the outside of the coaxial signal lines 20, and includes a first functional line 31, a second functional line 32 arranged on the side of the coaxial signal line 20 away from the first functional line 31, a A third functional line 33 provided on the side of the first functional line 31, and a fourth functional line provided on the side of the second functional line 32 and on the side of the coaxial signal line 20 away from the third functional line 33 34;

A ground wire group 4 arranged linearly on the inner side of the coaxial signal line 20, and includes a first ground wire 41, a second ground wire 42 arranged on one side of the first ground wire 41, and a second ground wire 42 arranged on the second ground wire 41. A third ground wire 43 on the side of the ground wire 42 and a fourth ground wire 44 on the side of the third ground wire 43;

At least one differential signal line group 5 linearly arranged inside the coaxial signal line 20, and the arrangement direction of the differential signal line group 5 and the arrangement direction of the ground line group 4 cross each other;

A plurality of partitions A defined inside the coaxial signal line 20 and formed by the ground line group 4 and the differential signal line group 5; and

A power cord set 6 separately arranged in each of the partitions A, and includes a first power cord 61, a second power cord 62 arranged on the side of the grounding cord set 4 away from the first power cord 61, and a A third power line 63 provided on the side of the differential signal line group 5 away from the first power line 61, and a third power line 63 provided on the side of the ground line group 4 away from the third power line 63 and located on the differential signal line The fourth power line 64 of the group 5 on the side away from the second power line 62.

The cable body 1 is extended and expanded into two parallel-arranged single-row connecting wire groups 1 1. The single-row connecting line group 11 is set on the inner side of the first coaxial signal line pair 121 and the second coaxial signal line pair 122 with the functional line set 3, and the ground line set 4 is set on the coaxial signal line set 2 Outside, the differential signal line group 5 is arranged between the functional line group 3, and the power line group 6 is separately arranged on the outside of the functional line group 3 and located between the first coaxial signal line pair 121 and the second coaxial signal Arrangement between the pair 122;

A connector body 7 for soldering the single-row connecting wire group 11, the connector body 7 includes an upper insulating colloid 71, an insulating colloid 72 located below one side of the upper insulating colloid 71, and a plurality of parallel formed on the upper insulating colloid. The welding grooves 711 above the surface of the colloid 71 and a plurality of welding grooves 721 are formed side by side under the surface of the lower insulating colloid 72, and the two single-row connecting wire groups 11 include a first single row arranged in the upper welding groove 711 The connecting wire group 111, and a second single-row connecting wire group 112 arranged in the lower welding groove 721;

A circuit board 73 arranged in the connector body 7 and adjacent to the upper insulating glue 71 and the lower insulating glue 72, and the circuit board 73 is the first single-row connecting wire group 111 and the first Two single-row connecting wire groups 112 are isolated on opposite sides;

A body shielding shell 81 defined outside the connector body 7;

At least one connecting wire shielding shell 82 provided on one side of the main body shielding shell 81 for covering the single-row connecting wire group 11;

A cable shielding shell 83 provided on one side of the connecting wire shielding shell 82 for fixing the cable body 1.

Through the above description, the structure of this technology can be understood, and according to the corresponding cooperation of this structure, the characteristics of the ground wire and the power wire can be used to produce the isolation effect in the cable body 1 in a special arrangement. The layer-coated coaxial signal line 20 is designed as a high-frequency signal line to achieve the advantage of greatly reducing the interference problem at the end of the cable body 1, and a detailed explanation will be described below.

In actual use, the cable body 1 includes a coaxial signal line set 2, a functional line set 3, a ground line set 4, a differential signal line set 5, and a power line set 6. For the coaxial signal line group 2, each coaxial signal line 20 is covered with core part 211, insulating part 212 (plastic material), grounding part 213 and protective layer 214 (the conventional wire sheath) from the inside to the outside. It is worth mentioning that the grounding part 213 with isolation function can make the first to fourth high-frequency signal line pairs 221, 222, 223, 224 also have a basic noise isolation effect at the cable body 1. .

Continuing the above, the coaxial signal line group 2 can be arranged in the cable body 1 in a circular arrangement, and then Then, the ground wire group 4 and the differential signal wire group 5 are arranged in the center of the coaxial signal wire group 2 in a cross pattern perpendicular to each other, and the four areas divided by the cross pattern are defined as the separation area A, And for the power cord set 6 to be set separately. Specifically, the first high-frequency signal wire pair 221, the second high-frequency signal wire pair 222, the third high-frequency signal wire pair 223, and the fourth high-frequency signal wire pair 224 are sequentially arranged in a ring on the cable body In 1, the first grounding wire 41, the second grounding wire 42, the third grounding wire 43, and the fourth grounding wire 44 are arranged in a straight line, as the vertical axis of the cross pattern, and the differential signal wire group 5 is horizontal The horizontal axis is arranged as a cross, and the first power cord 61 is located in the upper left partition A, the second power cord 62 is located in the upper right partition A, and the third power cord 63 is located in the lower left partition A. , The fourth power line 64 is set in the lower right partition A, and finally the first function line 31, the second function line 32, the third function line 33, and the fourth function line 34 are roughly scattered outside the coaxial signal line group 2. . In this way, the ground wire group 4 and the power wire group 6 with noise isolation effect are arranged in a special arrangement and position relationship to produce an isolation effect inside the cable body 1 and reduce the signal attenuation inside the cable body 1.

The part of the cable body 1 extending to the connector body 7 uses the design of the upper welding groove 711 and the lower welding groove 721, so that the first single-row connecting wire group 111 and the second single-row connecting wire group 112 can be directly arranged respectively In the upper soldering groove 711 and the lower soldering groove 721, the circuit board 73 can be arranged adjacent to the upper and lower insulating colloids 71 and 72 at the same time. At this time, the first single-row connection line group 111 and the second single-row connection The wire set 112 is isolated on different sides by the circuit board 73, thereby solving the problems arising when the conventional cable body 1 is connected to the connector body 7 through the circuit board 73.

The arrangement sequence of the first single-row connecting wire group 111 in the upper welding slot 711 is the first ground wire 41, the first high-frequency signal wire pair 221, the first power wire 61, the first functional wire 31, and the differential signal. The line group 5, the second functional line 32, the second power line 62, the second high-frequency signal line pair 222, and the second ground line 42, the second single-row connection line group 112 is arranged in the lower welding slot 721 according to the order The sequence is the third ground line 43, the third high frequency signal line pair 223, the third power line 63, the third function line 33, the fourth function line 34, the fourth power line 64, the fourth high frequency signal line pair 224, And the fourth ground wire 44 are arranged in sequence (in this embodiment, the second single-row connection wire group 112 can choose not to set the differential signal wire group 5 according to the user's functional requirements).

In addition, the shielding shell of the present invention includes a body shielding shell 81, a connecting wire shielding shell 82, and a cable shielding shell 83. The body shielding shell 81 is a part that covers the terminals of the connector body 7 and the connecting wire shielding shell. 82 is the part that covers the cable body 1 and extends to the connector body 7 (that is, the single The cable shielding shell 83 is used to fix the cable body 1 on the connecting cable shielding shell 82 side. In this way, the stability of fixing the cable body 1 to the connector body 7 can be increased, and the problem of falling off or damage when the cable body 1 is pulled or bent can be reduced.

However, the above description is only the preferred embodiments of the present invention, which does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the scope of the patent of the present invention, and is hereby stated.

In summary, the cable structure of the electrical connector of the present invention can indeed achieve its effects and purposes when used. Therefore, the present invention is truly an invention with excellent practicability. It meets the requirements of an invention patent application. If you submit an application, I hope the review committee will approve the invention as soon as possible to protect the hard work of the creator. If the review committee has any doubts, please feel free to write instructions.

1‧‧‧Cable body

2‧‧‧Coaxial cable set

20‧‧‧Coaxial cable

211‧‧‧Line Center

212‧‧‧Insulation

213‧‧‧Grounding part

214‧‧‧Protection layer

3‧‧‧Function line group

4‧‧‧Ground wire set

5‧‧‧Differential signal line group

6‧‧‧Power cord set

Claims (10)

A cable structure of an electrical connector is provided with a cable body, which mainly includes: At least one set of coaxial signal lines arranged in a circular arrangement, and each coaxial signal line of the set of coaxial signal lines includes a core part, an insulating part covered and arranged outside the core part, and a covering arranged on the insulating part An external grounding part and a protective layer covering the grounding part; At least one functional line set outside the coaxial signal line set; At least one ground wire group linearly arranged inside the coaxial signal wire group; At least one differential signal line group linearly arranged inside the coaxial signal line group, and the arrangement direction of the differential signal line group and the arrangement direction of the ground line group cross each other; A plurality of partitions are defined inside the coaxial signal line group and formed by the ground line group and the differential signal line group; and At least one power cord set separately arranged in each of the compartments. For the cable structure of the electrical connector described in item 1 of the scope of patent application, the coaxial signal line group defines a first coaxial signal line pair and a second coaxial signal line pair separated from the first coaxial signal line pair after being expanded. Coaxial signal line pair, and the cable system is extended into two parallel single-row connecting line groups, and the single-row connecting line group is set up between the first coaxial signal line pair and the second coaxial signal line pair with the functional line. The inner side of the coaxial signal wire pair, the ground wire group is arranged on the outer side of the coaxial signal wire group, the differential signal wire group is arranged between the functional wire groups, the power wire group is separately arranged on the outer side of the functional wire group and is located at the first A pair of coaxial signal lines and the second pair of coaxial signal lines are arranged in a manner. The cable structure of the electrical connector described in the first item of the scope of patent application, wherein the cable system is extended into two parallel-arranged single-row connecting wire groups to be welded to a connector body, and the connector The main body includes an upper insulating colloid, an insulating colloid located under one side of the upper insulating colloid, a plurality of welding grooves formed side by side on the surface of the upper insulating colloid, and a plurality of welding grooves formed side by side under the surface of the lower insulating colloid, and The two single-row connecting wire groups are respectively arranged in the upper welding groove and the lower welding groove. As for the cable structure of the electrical connector described in item 3 of the scope of the patent application, the connector body has a circuit substrate adjacent to the upper and lower insulating colloids, and the circuit substrate is The two single-row connecting wire groups are isolated on opposite sides. The cable structure of the electrical connector described in the first item of the scope of patent application, wherein the cable system is extended into two parallel-arranged single-row connecting wire groups to be welded to a connector body, and the connector The body is provided with a body shielding shell, at least one connecting wire shielding shell arranged on one side of the body shielding shell for covering the single-row connecting wire group, and a connecting wire shielding shell arranged on one side of the connecting wire shielding shell for fixing the cable body The cable shielding shell. A cable structure of an electrical connector is provided with a cable body, which mainly includes: A plurality of coaxial signal lines arranged in a circular arrangement, and the coaxial signal lines include a first high-frequency signal line pair, a second high-frequency signal line pair arranged on one side of the first high-frequency signal line, and a set A third high-frequency signal line pair on one side of the second high-frequency signal line pair, and a fourth high-frequency signal line pair arranged between the third high-frequency signal line pair and the first high-frequency signal line pair , And each of the coaxial signal lines includes a core part, an insulating part covered and arranged outside the core part, a ground part covered and arranged outside the insulating part, and a covered part arranged outside the ground part The protective layer; A functional line set on the outer side of the coaxial signal lines, and includes a first functional line, a second functional line set on the side of the coaxial signal line away from the first functional line, and a second functional line set on the first functional line A third functional line on the side of the line, and a fourth functional line set on the side of the second functional line and located on the side of the coaxial signal line away from the third functional line; A ground wire group arranged linearly on the inner side of the coaxial signal line, and includes a first ground wire, a second ground wire arranged on one side of the first ground wire, and a second ground wire arranged on one side of the second ground wire A third ground wire, and a fourth ground wire provided on one side of the third ground wire; At least one differential signal line group linearly arranged inside the coaxial signal line, and the arrangement direction of the differential signal line group and the arrangement direction of the ground line group cross each other; A plurality of partitions are defined inside the coaxial signal line and formed by the ground line group and the differential signal line group; and A power cord set separately arranged in each of the partitions, and includes a first power cord, a second power cord set on the side of the ground line set away from the first power cord, and a power cord set on the differential signal A third power line on the side of the line set away from the first power line, and a second power line provided on the side of the ground line set away from the third power line and located on the side of the differential signal line set away from the second power line Four power cords. As for the cable structure of the electrical connector described in item 6 of the scope of the patent application, the cable system extends into a first single-row connecting wire group and a parallel arrangement with the first single-row connecting wire group The second single-row connection line group, wherein the first single-row connection line group is composed of the first ground wire, the first high-frequency signal line pair, the first power line, the first functional line, and the differential signal The line group, the second functional line, the second power line, the second high-frequency signal line pair, and the second ground line are arranged in sequence, and the second single-row connection line group is formed by the third Grounding line, the third high-frequency signal line pair, the third power line, the third functional line, the fourth functional line, the fourth power line, the fourth high-frequency signal line pair, and the fourth ground The lines are arranged in sequence. As for the cable structure of the electrical connector described in item 6 of the scope of the patent application, the cable system extends into a first single-row connecting wire group and a parallel arrangement with the first single-row connecting wire group The second single-row connecting wire set is welded to a connector body, and the connector body includes an upper insulating colloid, an insulating colloid located below one side of the upper insulating colloid, and a plurality of them formed side by side on the surface of the upper insulating colloid The upper welding groove for combining the first single-row connecting wire group and a plurality of welding grooves formed side by side on the surface of the lower insulating colloid for combining the second single-row connecting wire group. The cable structure of the electrical connector described in item 8 of the scope of the patent application, wherein the connector body has a circuit substrate adjacent to the upper insulating colloid and the lower insulating colloid, and the circuit substrate is The first single-row connecting wire group and the second single-row connecting wire group are isolated on different sides. As for the cable structure of the electrical connector described in item 6 of the scope of the patent application, the cable system extends into a first single-row connecting wire group and a parallel arrangement with the first single-row connecting wire group The second single-row connecting wire group is welded to a connector body, and the connector body has a body shielding shell, and at least one is provided on one side of the body shielding shell for covering the first single-row connecting wire group A connecting wire shielding shell with the second single-row connecting wire group, and a cable shielding shell arranged on one side of the connecting wire shielding shell for fixing the cable body.

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