Core wire and cable having the same

Abstract

The utility model relates to a core wire and a cable with the same, the cable comprises a core wire, a shielding layer coated outside the core wire and an outer insulating layer coated outside the shielding layer, the core wire comprises an inner conductor and an inner insulating layer coated outside the inner conductor, and the cross section of the inner conductor is flat. The cable provided by the utility model is good in electrical property.

Description

Technical Field

[0001] The utility model relates to a core wire and a cable having the core wire, in particular to a core wire for transmitting high-frequency signals and a cable having the core wire.

Background Art

[0002] With the development and popularization of electronic technology products, signal cables, as a tool for transmitting signals, are widely used in fields such as household appliances, instruments, automation equipment, data centers, servers, switches, data centers, cloud computing, and 5G. However, the cross-sectional shape of the inner conductor of traditional cables is circular.

[0003] Please refer to the Chinese utility model patent No. CN213519296U announced on June 22, 2021, which discloses a cable. The cable includes a pair of inner conductors, an inner insulating layer coated outside the inner conductors, a shielding layer coated outside the inner insulating layer, and an outer skin coated outside the shielding layer. The cross-sectional shape of the inner conductor is circular. When forming the inner insulating layer, the position of the circular conductor is likely to move, and the relative position between the inner conductor and the inner insulating layer is not fixed, thus affecting the high-frequency electrical characteristics of the cable.

[0004] Therefore, it is necessary to provide a core wire and a cable having the core wire, and the cable has better ability to transmit high-speed signals.

Content of the Utility Model

[0005] The main purpose of the utility model is to provide a core wire which has better signal transmission ability.

[0006] To achieve the above purpose, the utility model can adopt the following technical solutions: A core wire includes an inner conductor and an insulating layer coated outside the inner conductor, and the cross-sectional shape of the inner conductor is flat.

[0007] The main purpose of the utility model is to provide a cable, and the cable has better ability to transmit high-speed signals.

[0008] To achieve the above purpose, the utility model can adopt the following technical solutions: A cable includes a core wire, a shielding layer coated outside the core wire, and an outer insulating layer coated outside the shielding layer. The core wire includes an inner conductor and an inner insulating layer coated outside the inner conductor, and the cross-sectional shape of the inner conductor is flat.

[0009] Compared with the prior art, the utility model has the following beneficial effects: The cross-sectional shape of the inner conductor of the core wire and the cable having the core wire of the utility model is flat, so that the electrical performance of the cable is better.

Description of the Drawings

[0010] Figure 1It is a cross-sectional view of the first embodiment of the core wire according to the present utility model.

[0011] Figure 2 It is a cross-sectional view of the first embodiment of the cable using the core wire of the first embodiment.

[0012] Figure 3 It is a cross-sectional view of the second embodiment of the cable using the core wire of the first embodiment.

[0013] Figure 4 It is a cross-sectional view of the third embodiment of the cable using the core wire of the first embodiment.

[0014] Figure 5 It is a cross-sectional view of the second embodiment of the core wire according to the present utility model.

[0015] Figure 6 It is a cross-sectional view of the first embodiment of the cable using the core wire of the second embodiment.

[0016] Figure 7 It is a cross-sectional view of the second embodiment of the cable using the core wire of the second embodiment.

[0017] Figure 8 It is a cross-sectional view of the third embodiment of the core wire according to the present utility model.

[0018] Figure 9 It is a cross-sectional view of the first embodiment of the cable using the core wire of the third embodiment.

[0019] Figure 10 It is a cross-sectional view of the second embodiment of the cable using the core wire of the third embodiment.

[0020] Figure 11 It is a cross-sectional view of the fourth embodiment of the core wire according to the present utility model.

[0021] Figure 12 It is a cross-sectional view of the first embodiment of the cable using the core wire of the fourth embodiment.

[0022] Figure 13 It is a cross-sectional view of the second embodiment of the cable using the core wire of the fourth embodiment.

[0023] Figure 14 It is a cross-sectional view of the fifth embodiment of the core wire according to the present utility model.

[0024] Figure 15 It is a cross-sectional view of the first embodiment of the cable using the core wire of the fifth embodiment.

[0025] Figure 16 It is a cross-sectional view of the second embodiment of the cable using the core wire of the fifth embodiment.

[0026] Figure 17 It is a cross-sectional view of the sixth embodiment of the core wire conforming to the present utility model.

[0027] Figure 18 It is a cross-sectional view of the cable of the first embodiment using the core wire of the sixth embodiment.

[0028] Figure 19 It is a cross-sectional view of the cable of the second embodiment using the core wire of the sixth embodiment.

[0029] Figure 20 It is a cross-sectional view of the seventh embodiment of the core wire conforming to the present utility model.

[0030] Figure 21 It is a cross-sectional view of the cable of the first embodiment using the core wire of the seventh embodiment.

[0031] Figure 22 It is a cross-sectional view of the cable of the second embodiment using the core wire of the seventh embodiment.

[0032] Figure 23 It is a cross-sectional view of the eighth embodiment of the core wire conforming to the present utility model.

[0033] Figure 24 It is a cross-sectional view of the cable of the first embodiment using the core wire of the eighth embodiment.

[0034] Figure 25 It is a cross-sectional view of the cable of the second embodiment using the core wire of the eighth embodiment.

[0035]

Description of Main Component Symbols

[0036] Core wires 100, 200, 300, 400, 500, 600, 700, 800

[0037] Inner conductors 101, 201, 301, 501

[0038] Inner insulating layers 102, 202, 302

[0039]

[0040] Air gaps 115, 125, 316, 516

[0041] Bare ground wires 126, 136, 226, 326, 426, 526, 626, 726, 826

[0042] First insulating layers 311, 411, 511, 611, 711, 811

[0043] Second insulating layers 312, 412, 512, 612, 712, 812

[0044] Connecting part 5111

Detailed implementation manners

[0045] Please refer to Figure 1 As shown, it is the first embodiment of the core wire 100 that conforms to the present utility model. The core wires 100 are arranged in pairs. Each core wire 100 includes an inner conductor 101 and an inner insulating layer 102 coated outside the inner conductor 101. The surfaces of the inner insulating layers 102 outside the pair of inner conductors 101 are in contact with each other. The cross-sectional shape of the inner conductor 101 is flat. The cross-sectional shape of the inner insulating layer 102 is circular. The cross-sectional shape of the inner conductor can be rectangular, square, etc. Specifically, in the present utility model, the cross-sectional shape of the conductor is rectangular, with a length of 0.35 mm and a width of 0.23 mm. The material of the inner insulating layer 102 can be at least one of solid PP (full Chinese name: polypropylene), or solid PE (full Chinese name: polyethylene), or solid FEP (full Chinese name: perfluoroethylene propylene copolymer), or PTFE (full Chinese name: polytetrafluoroethylene).

[0046] Please refer to Figure 2 As shown, it is the cable 110 of the first embodiment using the core wire 100 of the first embodiment. The cable 110 includes a pair of the core wires 100, a shielding layer 113 coated outside the pair of core wires 100, and an outer insulating layer 114 coated outside the shielding layer 113. The pair of core wires 100 are arranged in the transverse direction, and air gaps 115 are formed on the upper and lower sides between the shielding layer 113 and the pair of core wires 100. The material of the shielding layer 113 is one of AL / PET (polyethylene terephthalate), AL / PP, AL / PET / AL, Cu / PET, Cu / PP, Cu / PET / Cu or semi-conductive tape. The outer insulating layer 114 is a tape made of PET material. Specifically, in this embodiment, the outer insulating layer 114 is provided in two layers.

[0047] Please refer to Figure 3 As shown, it is the cable 120 of the second embodiment using the core wire 100 of the first embodiment. Compared with the cable 110 of the first embodiment, in this embodiment, it further includes a bare ground wire 126 arranged between the pair of core wires 100 and the shielding layer 123. The bare ground wire 126 is arranged in one of the air gaps 125.

[0048] Please refer to Figure 4 As shown, it is the cable 130 of the third embodiment using the core wire 100 of the first embodiment. Compared with the cable 110 of the first embodiment, in this embodiment, two bare ground wires 136 are arranged between the shielding layer 133 and the outer insulating layer 134, and the two bare ground wires 136 are arranged on both sides in the transverse direction.

[0049] Please refer to Figure 5 As shown, it is the second embodiment of the core wire 200 that conforms to the present utility model. Compared with the core wire 100 of the first embodiment, in this embodiment, the core wire 200 includes a pair of inner conductors 201, and the pair of inner conductors 201 are arranged at intervals in the transverse direction. The inner insulating layer 202 is co-extruded and formed outside the pair of inner conductors 201, and the outer shapes of both sides in the transverse direction of the cross-section of the inner insulating layer 202 are semi-circular.

[0050] Please refer to Figure 6 As shown, it is the cable 210 of the first embodiment using the core wire 200 of the second embodiment of the present utility model. The cable 210 includes the core wire 200, a shielding layer 213 wrapped outside the core wire 200, and an outer insulating layer 214 wrapped outside the shielding layer 213.

[0051] Please refer to Figure 7 As shown, it is the cable 220 of the second embodiment using the core wire 200 of the second embodiment of the present utility model. Compared with the cable 210 of the previous embodiment, in this embodiment, the cable 220 further includes a pair of bare ground wires 226. The pair of bare ground wires 226 are arranged between the shielding layer 223 and the outer insulating layer 224, and the two bare ground wires 226 are arranged on both sides in the transverse direction.

[0052] Please refer to Figure 8 As shown, it is the third embodiment of the core wire 300 that conforms to the present utility model. Compared with the core wire 100 of the first embodiment, in this embodiment, the inner insulating layer 302 includes a first insulating layer 311 extruded and formed outside the pair of inner conductors 301 and a second insulating layer 312 wrapped outside the first insulating layer 311. The first insulating layer 311 is respectively extruded and formed outside the corresponding inner conductor 301, and the surfaces of the first insulating layers 311 outside the pair of inner conductors 301 are in contact with each other. The second insulating layer 312 is commonly wrapped outside the first insulating layers 311 outside the pair of inner conductors 301. Air gaps 316 are provided on the upper and lower sides between the first insulating layer 311 and the second insulating layer 312.

[0053] Please refer to Figure 9 As shown, it is the cable 310 of the first embodiment using the core wire 300 of the third embodiment of the present utility model. The cable 310 includes the core wire 300, a shielding layer 313 wrapped outside the core wire 300, and an outer insulating layer 314 wrapped outside the shielding layer 313.

[0054] Please refer to Figure 10As shown, the cable 320 of the second embodiment uses the core wire 300 of the third embodiment of the present utility model. Compared with the cable 310 of the previous embodiment, the cable 320 in this embodiment further includes a pair of bare ground wires 326, and the pair of bare ground wires 326 are arranged between the shielding layer 323 and the outer insulating layer 324, and the two bare ground wires 326 are arranged on both sides in the transverse direction.

[0055] Please refer to Figure 11 As shown, the fourth embodiment of the core wire 400 conforms to the present utility model. Compared with the core wire 300 of the third embodiment, in this embodiment, the material of the first insulating layer 411 of the core wire 400 is foamed. Specifically, the material of the first insulating layer 411 is foamed PP, foamed PE, or foamed FEP. The material of the second insulating layer 412 is a non-foamed material.

[0056] Please refer to Figure 12 As shown, the cable 410 of the first embodiment uses the core wire 400 of the fourth embodiment of the present utility model. The cable 410 includes the core wire 400, a shielding layer 413 wrapped around the core wire 400, and an outer insulating layer 414 wrapped around the shielding layer 413.

[0057] Please refer to Figure 13 As shown, the cable 420 of the second embodiment uses the core wire 400 of the fourth embodiment of the present utility model. Compared with the cable 410 of the previous embodiment, the cable 410 in this embodiment further includes a pair of bare ground wires 426, and the pair of bare ground wires 426 are arranged between the shielding layer 423 and the outer insulating layer 424, and the two bare ground wires 426 are arranged on both sides in the transverse direction.

[0058] Please refer to Figure 14 As shown, the fifth embodiment of the core wire 500 conforms to the present utility model. Compared with the core wire 400 of the fourth embodiment, in this embodiment, the first insulating layer 511 is co-extruded and formed around the pair of inner conductors 501, in a shape like glasses. The first insulating layer 511 around the pair of inner conductors 501 is connected as a whole, and the first insulating layer 511 includes a connecting portion 5111 located between the pair of inner conductors 501 in the transverse direction. The second insulating layer 512 is wrapped around the first insulating layer 511, and air gaps 516 are formed between the upper and lower sides of the second insulating layer 512 and the first insulating layer 511. Both the first insulating layer 511 and the second insulating layer 512 are made of non-foamed materials.

[0059] Please refer to Figure 15As shown, the cable 510 is the first embodiment using the core wire 500 of the fifth embodiment of the present utility model. The cable 510 includes the core wire 500, a shielding layer 513 wrapped around the core wire 500, and an outer insulating layer 514 wrapped around the shielding layer 513.

[0060] Please refer to Figure 16 As shown, the cable 520 is the second embodiment using the core wire 500 of the fifth embodiment of the present utility model. Compared with the cable 510 of the previous embodiment, in this embodiment, a pair of bare ground wires 526 are further included and are disposed on both sides in the transverse direction between the shielding layer 523 and the outer insulating layer 524.

[0061] Please refer to Figure 17 As shown, it is the sixth embodiment conforming to the core wire 600 of the present utility model. Compared with the core wire 500 of the fifth embodiment, in this embodiment, the first insulating layer 611 is made of a foamed material, and the second insulating layer 612 is made of a non-foamed material.

[0062] Please refer to Figure 18 As shown, the cable 610 is the first embodiment using the core wire 600 of the sixth embodiment of the present utility model. The cable 610 includes the core wire 600, a shielding layer 613 wrapped around the core wire 600, and an outer insulating layer 614 wrapped around the shielding layer 613.

[0063] Please refer to Figure 19 As shown, the cable 620 is the second embodiment using the core wire 600 of the sixth embodiment of the present utility model. Compared with the cable 610 of the previous embodiment, in this embodiment, a pair of bare ground wires 626 are further included and are disposed on both sides in the transverse direction between the shielding layer 623 and the outer insulating layer 624.

[0064] Please refer to Figure 20 As shown, it is the seventh embodiment conforming to the core wire 700 of the present utility model. Compared with the core wire 500 of the fifth embodiment, in this embodiment, no air gap is provided between the first insulating layer 711 and the second insulating layer 712.

[0065] Please refer to Figure 21 As shown, the cable 710 is the first embodiment using the core wire 700 of the seventh embodiment of the present utility model. The cable 710 includes the core wire 700, a shielding layer 713 wrapped around the core wire 700, and an outer insulating layer 714 wrapped around the shielding layer 713.

[0066] Please refer to Figure 22As shown, the cable 720 of the second embodiment using the core wire 700 of the seventh embodiment of the present utility model is provided. Compared with the cable 710 of the previous embodiment, in this embodiment, a pair of bare ground wires 726 are further included, which are disposed between the shielding layer 723 and the outer insulating layer 724 and on both sides in the lateral direction.

[0067] Please refer to Figure 23 As shown, the eighth embodiment of the core wire 800 conforming to the present utility model is provided. Compared with the core wire 700 of the seventh embodiment, in this embodiment, the first insulating layer 811 is made of a foamed material, and the second insulating layer 812 is made of a non-foamed material.

[0068] Please refer to Figure 24 As shown, the cable 810 of the first embodiment using the core wire 800 of the eighth embodiment of the present utility model is provided. The cable 810 includes the core wire 800, a shielding layer 813 coated outside the core wire 800, and an outer insulating layer 814 coated outside the shielding layer 813.

[0069] Please refer to Figure 25 As shown, the cable 820 of the second embodiment using the core wire 800 of the eighth embodiment of the present utility model is provided. Compared with the cable 810 of the previous embodiment, in this embodiment, a pair of bare ground wires 826 are further included, which are disposed between the shielding layer 823 and the outer insulating layer 824 and on both sides in the lateral direction.

[0070] The cross-sectional shape of the inner conductor of the core wire of the present utility model and the cable having the core wire is flat, which can effectively avoid displacement misalignment from affecting high-frequency electrical characteristics, and is beneficial to subsequent soldering operations or direct cold pressing operations of the cable with other electronic components. Moreover, the inner conductor with a flat wire structure has higher mechanical strength, so there is no need for a large conductor to enhance its strength, and the cross-sections of these inner conductors can be reduced to the extent required to carry the current load. Compared with the cable with a circular inner conductor, the flat inner conductor has a better surface-to-volume ratio, which will also make them more efficient in heat dissipation. In addition, the flat inner conductor also has higher flexibility and can be easily twisted to suit various application environments. The cable of the present utility model provides more choices and convenience for the high-frequency characteristics and finished product assembly of the cable.

[0071] However, it can be understood that although many features and advantages of the present utility model have been mentioned in the previous description, including some details of the structure and function, the present utility model is merely illustrative, and many details can be changed, especially in the shape, size, and arrangement of components within the scope of the principles represented by the broad general meaning of the terms expressed in the appended claims.

Claims

1. A core wire comprising an inner conductor and an inner insulating layer coated outside the inner conductor, characterized in that: The cross-section of the inner conductor is flat. The inner conductor comprises a pair of inner conductors, which are arranged at intervals in the transverse direction. The length direction of the cross-section of the inner conductor is arranged along the transverse direction to facilitate the connection between the core wire and other parts.

2. The core wire according to claim 1, characterized in that: The cross-section of the inner insulating layer is circular.

3. The core wire according to claim 1, characterized in that: The inner insulating layer is extruded together outside the pair of inner conductors, and the outer shapes of both sides of the transverse direction of the cross section of the inner insulating layer are semicircular.

4. The core wire according to claim 1, characterized in that: The inner insulating layer includes a first insulating layer extruded outside the pair of inner conductors and a second insulating layer coated outside the first insulating layer. The first insulating layers are extruded outside the corresponding inner conductors, and surfaces of the first insulating layers outside the pair of inner conductors are in contact with each other.

5. The core wire according to claim 1, characterized in that: The inner insulating layer includes a first insulating layer co-extruded outside the pair of inner conductors and a second insulating layer coated outside the first insulating layer, and the first insulating layers outside the pair of inner conductors are connected as a whole.

6. The core wire according to claim 5, characterized in that: The first insulating layer is made of a foam material, and the second insulating layer is made of a solid material.

7. The core wire according to claim 6, characterized in that: Air gaps are provided at upper and lower sides between the first insulating layer and the second insulating layer.

8. A cable comprising a core wire, a shielding layer wrapped around the core wire, and an outer insulating layer wrapped around the shielding layer, wherein the core wire comprises an inner conductor and an inner insulating layer wrapped around the inner conductor, characterized in that: The cross-section of the inner conductor is flat.

9. The cable according to claim 8, characterized in that: The inner conductors include a pair, and the pair of inner conductors are arranged in a transverse direction. The inner insulating layer includes a first insulating layer extruded outside the pair of inner conductors and a second insulating layer coated outside the first insulating layer. The cross-section of the first insulating layer outside each inner conductor is circular.

10. The cable according to claim 8, wherein: The material of the inner insulating layer may be at least one of foamed PP, foamed PE, foamed FEP or solid PP, solid PE, solid FEP or solid PTFE, and the shielding layer may be at least one of AL / PET, AL / PP, AL / PET / AL, Cu / PET, Cu / PP, Cu / PET / Cu or a semi-conductive tape.

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