A communication cable with a wire pair connected in a body

Abstract

The utility model discloses a kind of communication cables of wire pair connection, including insulating outer skin, isolation frame and several wire pairs, first core wire and second core wire are stranded on wire pair, the outside of first core wire is covered with first outer insulating layer, the outside of second core wire is covered with second outer insulating layer, there is coincidence between first outer insulating layer and second outer insulating layer, first core wire includes first conductor, the outside of first conductor is covered with first inner insulating layer, second core wire includes second conductor, the material of insulating layer is identical.In the communication cable of this wire pair connection, in the two groups of independent core wires stranded in each group of wire pairs, through fixed mould and heating treatment, make inside and outside two layers of insulating layer fusion to a whole, while ensuring the concentricity and roundness of conductor and insulating layer outside unchanged, then the wire pair of connection is stranded, ensure that pitch is very stable when communication cable is stranded, and there is no any gap between two core wires after stranding, also ensure that the self characteristic impedance of wire pair is very stable.

Description

Technical Field

[0001] This utility model relates to the technical field of wires and cables, and in particular to a communication cable with connected wire pairs. Background Technology

[0002] Electric wires and cables contain wire pairs, consisting of two core wires with identical conductors, insulation materials, diameters, and colors (or different colors), tightly connected by twisting or winding. However, conventional twisting or winding introduces the following defects: 1. If the wiring bends at the twisted joint, gaps will form, and air in these gaps will affect signal transmission; 2. Filling the center of the twisted section with material alters the distance between the conductor center and the outer edge of the insulation layer; 3. Using PTFE tape to bind two independent core wires together prevents them from maintaining perfect flatness, resulting in misalignment and tilting, which alters impedance and causes signal loss, particularly noticeable in high-frequency signals. Summary of the Invention

[0003] One objective of this utility model is to provide a communication cable with interconnected wire pairs, which ensures the concentricity and roundness of the core wires after twisting, and also ensures that there are no gaps between the wire pairs, so that the core wires are on the same plane, thus ensuring the original impedance and core wire characteristics.

[0004] To achieve this objective, the present invention adopts the following technical solution: A wire-pair integrated communication cable includes an insulating outer sheath, an isolation frame, and several wire pairs. The wire pairs are distributed on the isolation frame, and the insulating outer sheath covers the outside of the isolation frame. A first core wire and a second core wire are twisted together on each wire pair. The first core wire is covered with a first outer insulation layer, and the second core wire is covered with a second outer insulation layer. The cross-sections of the first and second outer insulation layers are both annular. There is an overlapping portion between the first and second outer insulation layers. The two sides of the overlapping portion are located on the side of the first core wire closer to the second core wire and the side of the second core wire closer to the first core wire, respectively. The first core wire includes a first conductor, and the outside of the first conductor is covered with a first inner insulation layer. The second core wire includes a second conductor, and the outside of the second conductor is covered with a second inner insulation layer. The first inner insulation layer, the second inner insulation layer, the first outer insulation layer, and the second outer insulation layer are made of the same material.

[0005] As a preferred technical solution, the center of the isolation frame is located at the center of the insulating outer sheath.

[0006] As a preferred technical solution, the materials of the first inner insulation layer, the second inner insulation layer, the first outer insulation layer and the second outer insulation layer are PP, PE or FEP.

[0007] As a preferred technical solution, the isolation frame is Y-shaped, and the number of wire pairs is three, with the three sets of wire pairs distributed within the area separated by the isolation frame.

[0008] As a preferred technical solution, the isolation frame is cross-shaped, and the number of wire pairs is four, with the four sets of wire pairs distributed within the area separated by the isolation frame.

[0009] As a preferred technical solution, the isolation frame is hexagonal, the number of wire pairs is six, and the six sets of wire pairs are distributed in the area separated by the isolation frame.

[0010] The beneficial effects of this utility model are as follows: It provides a communication cable with wire pairs connected together. In this communication cable with wire pairs connected together, the insulation layers of the two independent core wires twisted together in each pair are fused together by a fixed mold and heating treatment. At the same time, it ensures that the concentricity and roundness of the conductor and the outer side of the insulation layer remain unchanged, and ensures that the characteristic impedance of the wire pair is very stable. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a cross-sectional view of a wire-pair communication cable as described in the embodiment; Figure 2 This is a side view of a wire-pair communication cable as described in the embodiment (with the insulation stripped off at one end). Figure 3 This is a diagram of the twisted wire pair structure described in the embodiment.

[0013] Figures 1 to 3 middle: 1. Insulating outer sheath; 2. Isolation frame; 3. Wire pair; 4. First conductor; 5. Second conductor; 6. First inner insulation layer; 7. Second inner insulation layer; 8. Overlapping part; 9. First outer insulation layer; 10. Second outer insulation layer. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] like Figures 1 to 3As shown in this embodiment, a wire-pair integrated communication cable includes an insulating outer sheath 1, an isolation frame 2, and several wire pairs 3. The wire pairs 3 are distributed on the isolation frame 2. The insulating outer sheath 1 covers the outside of the isolation frame 2. A first core wire and a second core wire are twisted together on the wire pairs 3. The outside of the first core wire is covered by a first outer insulation layer 9, and the outside of the second core wire is covered by a second outer insulation layer 10. The cross-section of the first outer insulation layer 9 and the cross-section of the second outer insulation layer 10 are both annular. There is an overlapping portion 8 between the first outer insulation layer 9 and the second outer insulation layer 10. The two sides of the overlapping portion 8 are respectively located on the side of the first core wire closer to the second core wire and the side of the second core wire closer to the first core wire. The first core wire includes a first conductor 4, and the outside of the first conductor 4 is covered by a first inner insulation layer 6. The second core wire includes a second conductor 5, and the outside of the second conductor 5 is covered by a second inner insulation layer 7. The first inner insulation layer 6, the second inner insulation layer 7, the first outer insulation layer 9, and the second outer insulation layer 10 are made of the same material.

[0016] First, a first conductor 4 and a second conductor 5 are made of metal. Then, a first inner insulation layer 6 is wrapped around the outside of the first conductor 4 to obtain a first core wire. Similarly, a second inner insulation layer 7 is wrapped around the outside of the second conductor 5 to obtain a second core wire. After the first and second core wires are formed, they are placed in a mold with a fixed structure. A material of the same material as the first inner insulation layer 6 and the second inner insulation layer 7 is injected. By heating, the material of the outer insulation layer is formed on the outside of the first and second core wires. A first outer insulation layer 9 is formed on the outside of the first core wire, and a second outer insulation layer 10 is formed on the outside of the second core wire. There is an overlap 8 between the first outer insulation layer 9 and the second outer insulation layer 10. The thickness of the overlap 8 is exactly the thickness of the first outer insulation layer 9 (or the thickness of the second outer insulation layer 10), so that the distance between the outside of the first conductor 4 and the first outer insulation layer 9 remains constant. Similarly, the distance between the outside of the second conductor 5 and the second outer insulation layer 10 remains constant.

[0017] The first inner insulation layer 6 and the second inner insulation layer 7 can be the same color or different colors. The first conductor 4 and the second conductor 5 are made of the same material, and the insulation materials must also be the same. The first core wire and the second core wire are the same size.

[0018] Moreover, the center of the isolation frame 2 is located at the center of the insulating outer skin 1. The materials of the first inner insulating layer 6, the second inner insulating layer 7, the first outer insulating layer 9 and the second outer insulating layer 10 are PP, PE or FEP. When the materials are the same, the first inner insulating layer 6, the second inner insulating layer 7, the first outer insulating layer 9 and the second outer insulating layer 10 can form a whole.

[0019] When the isolation frame 2 is Y-shaped, there are three pairs of wires 3, and the three sets of wires 3 are distributed in the area divided by the isolation frame 2; when the isolation frame 2 is cross-shaped, there are four pairs of wires 3, and the four sets of wires 3 are distributed in the area divided by the isolation frame 2; when the isolation frame 2 is hexagonal, there are six pairs of wires 3, and the six sets of wires 3 are distributed in the area divided by the isolation frame 2; the isolation frame 2 can even be other equally divided structures, and the wires 3 can be placed in the corresponding areas.

[0020] This technology can also be applied to high-speed lines. Structurally, the inner insulation layer covers the conductor to form the core wire. Several core wires are placed in a mold with the same material of outer insulation layer injected to obtain wire pair 3.

[0021] It should be stated that the above specific embodiments are merely preferred embodiments of this utility model and the technical principles used therein. Within the scope of the technology disclosed in this utility model, any changes or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A wire-pair integrated communication cable, characterized in that, The device includes an insulating outer sheath, a separator, and several wire pairs. The wire pairs are distributed on the separator, and the insulating outer sheath covers the outside of the separator. A first core wire and a second core wire are twisted together on each wire pair. The first core wire is covered with a first outer insulation layer, and the second core wire is covered with a second outer insulation layer. The cross-sections of the first and second outer insulation layers are both annular. There is an overlapping portion between the first and second outer insulation layers. The two sides of the overlapping portion are located on the side of the first core wire closer to the second core wire and the side of the second core wire closer to the first core wire, respectively. The first core wire includes a first conductor, and the outside of the first conductor is covered with a first inner insulation layer. The second core wire includes a second conductor, and the outside of the second conductor is covered with a second inner insulation layer. The first inner insulation layer, the second inner insulation layer, the first outer insulation layer, and the second outer insulation layer are made of the same material.

2. The communication cable with wire pairs as described in claim 1, characterized in that, The center of the isolation frame is located at the center of the insulating outer sheath.

3. The communication cable with wire pairs as described in claim 1, characterized in that, The materials of the first inner insulation layer, the second inner insulation layer, the first outer insulation layer, and the second outer insulation layer are PP, PE, or FEP.

4. The communication cable with wire pairs as described in claim 1, characterized in that, The isolation frame is Y-shaped, and the number of wire pairs is three, with the three sets of wire pairs distributed within the area separated by the isolation frame.

5. A wire-pair integrated communication cable according to claim 1, characterized in that, The isolation frame is cross-shaped, and the number of wire pairs is four, with the four sets of wire pairs distributed within the area separated by the isolation frame.

6. A wire-pair integrated communication cable according to claim 1, characterized in that, The isolation frame is hexagonal, and the number of wire pairs is six, with six sets of wire pairs distributed within the areas separated by the isolation frame.

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