Filling strip and cable
By forming a hollow or grooved structure on the surface of the filler strip, the problems of signal attenuation and high cost caused by the filler strip are solved, achieving low-cost and high-efficiency cable performance improvement.
Patent Information
- Application Number
- CN202421873988.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The filler strips in existing cables have the problem of increasing the insertion loss of network lines and high cost. In particular, solid filler strips cause signal attenuation, while foam filler strips can alleviate the loss but are too expensive.
Design a filler strip with a hollow or grooved surface, and reduce dielectric effect and insertion loss by adjusting the roller or mold during the production process to form puncture holes or grooves, while maintaining low material cost.
It effectively reduces cable insertion loss, improves signal transmission stability, and has low cost and simple and convenient production process.
Smart Images
Figure CN223956327U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to cable technical field relates to a kind of filling strip and cable. BACKGROUND
[0002] Filling strip, also known as filling skeleton, plays an important role in cable manufacturing. There are usually two or more wire pairs in existing cables. Each wire pair is separated by a filling strip, and the filling strip is filled between each wire pair to prevent mutual extrusion or friction between each wire pair.
[0003] Traditional filling strips are usually solid or foamed. Solid filling strips may adversely affect the insertion loss (IL) of network cables due to their compact structure, while foamed filling strips can reduce this impact, but the cost of foamed materials is relatively high, increasing the overall cost of the cable. SUMMARY
[0004] The utility model aims at the above problems existing in prior art and proposes a kind of filling strip and cable.
[0005] The utility model can achieve the purpose by the following technical scheme: a kind of filling strip, including: filling strip body, the surface of the filling strip body is provided with the hollow structure formed by puncture and / or is provided with the groove structure formed by extrusion.
[0006] Preferably, the filling strip body is configured as a structure with a cross-section in the shape of a straight line or a structure with a cross-section in the shape of a cross.
[0007] Preferably, the filling strip body has a plurality of puncture holes arranged in a penetrating manner, and each puncture hole is uniformly arranged along the width direction and the length direction of the filling strip body.
[0008] Preferably, the surface of the filling strip body is provided with a plurality of grooves, and each groove is uniformly arranged along the width direction and the length direction of the filling strip body.
[0009] Preferably, the filling strip body is configured as a structure with a cross-section in the shape of a cross, and the filling strip body includes four blade portions, and each groove is distributed on the surface of the four blade portions.
[0010] A cable includes the filling strip, a jacket, and at least two pairs of twisted wire pairs. The filling strip body is arranged in the jacket and divides the space in the jacket into at least two sub-cavities, and the pairs of twisted wire pairs are arranged in the sub-cavities.
[0011] Preferably, the jacket is provided with a tear rope.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. A filler strip with a hollow or grooved structure on its surface is provided. Compared with the traditional solid filler strip, the filler strip has less impact on the insertion loss of the cable and is less expensive than the foamed filler strip. The filler strip can be obtained by adjusting the roller or mold during production, so it is very convenient to produce.
[0014] 2. During production, a barbed roller is added to the filler strip. When the filler strip leaves the extruder head and passes through this roller before it is fully cooled, the barbed roller will press out regular puncture holes. This improves insertion loss without increasing material costs, thus offering a more cost-effective advantage.
[0015] 3. During production, some raised ribs are added to the outer mold on which the filler strip is extruded, so that the filler strip will form regular grooves on the surface after passing through the outer mold. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the filler strip in the cable according to Embodiment 1 of this utility model.
[0017] Figure 2 This is a schematic diagram of the straight filler line in the cable according to Embodiment 2 of this utility model.
[0018] Figure 3 This is a schematic diagram of the filler strip in the cable according to Embodiment 3 of this utility model.
[0019] In the diagram, 100 is the filler strip body; 110 is the puncture hole; 120 is the groove; 130 is the blade section; 200 is the sheath; 300 is the twisted pair; and 400 is the tear cord. Detailed Implementation
[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0021] like Figures 1-3 As shown, a filler strip includes: a filler strip body 100, the surface of which is provided with a hollow structure formed by puncture and / or a groove 120 structure formed by extrusion.
[0022] The design of the filling strip is to overcome the shortcomings of traditional filling strips, that is, the solid filling strip may increase the network line insertion loss (IL), and the foamed filling strip can alleviate this problem but has high cost. In the embodiment, the surface of the filling strip body 100 is provided with a hollow structure or a groove 120 structure, wherein the hollow structure is formed by piercing, and the groove 120 structure is formed by extrusion molding. The filling strip body 100 can be designed as a structure with a cross-section in the shape of a horizontal line or a cross, to adapt to the layout requirements of different cables.
[0023] It should be noted here that the solid structure of the filling strip will have a greater dielectric effect on the passing electromagnetic wave due to its tight physical structure, resulting in signal attenuation, that is, the insertion loss increases. Forming a hollow structure or a groove 120 structure on the surface of the filling strip can reduce the dielectric thickness of the filling strip, reduce the dielectric effect, and thus reduce the loss of the signal in the transmission process. Compared with the foamed filling strip, the cost of the present filling strip is lower. Although the foamed filling strip can reduce the insertion loss, the overall cable cost increases due to the high cost of the foamed material. By adjusting the production process, a hollow structure or a groove 120 structure is formed on the surface of the existing solid structure filling strip, without the need for additional expensive materials, to achieve a similar effect and effectively control the cost.
[0024] Compared with the traditional filling strip, the filling strip can significantly reduce the insertion loss of the cable, while the cost is lower. In the production process, only a simple adjustment of the roller or mold is needed to obtain the optimized filling strip, so the production process is more convenient and efficient.
[0025] On the basis of the above embodiment, the filling strip body 100 is provided in a structure with a cross-section in the shape of a horizontal line or a cross.
[0026] In an embodiment, the filling strip body 100 is a horizontal line type filling strip, which has a simple cross-section structure and is easy to produce and install. The horizontal line type filling strip can be filled between the parallel arranged wire pairs to prevent the wire pairs from being pressed and rubbed against each other, while providing sufficient support and isolation to ensure reasonable distribution of the internal space of the cable.
[0027] In another embodiment, the filling strip body 100 is a cross type filling strip, and the cross section of the cross type filling strip is composed of four blades, similar to the shape of a cross. This design can more evenly distribute the internal space of the cable, so that the distance between the wire pairs remains consistent, which is beneficial to the stability of signal transmission and the reduction of crosstalk.
[0028] Embodiment one:
[0029] As Figure 1As shown, the filler strip body 100 has a plurality of through-holes 110, and the puncture holes 110 are evenly spaced along the width and length directions of the filler strip body 100.
[0030] The filler strip body 100 improves cable performance by forming regularly spaced hollow puncture holes 110 on its surface. The multiple puncture holes 110 form an ordered array, altering the physical properties of the filler strip and thus reducing interference with cable signal transmission, especially reducing insertion loss.
[0031] In this embodiment, a barbed roller is added during the production of the filler strip. When the filler strip leaves the extruder head and passes through this roller before it is fully cooled, it is pressed into regularly spaced puncture holes 110 by the barbed roller. This improves insertion loss without increasing material costs, thus offering a more cost-effective solution.
[0032] Example 2:
[0033] like Figure 2 , Figure 3 As shown, the surface of the filler strip body 100 is provided with a plurality of grooves 120, and the grooves 120 are evenly spaced along the width and length directions of the filler strip body 100.
[0034] The filler strip body 100 has several grooves 120 on its surface to improve cable performance. These grooves 120 can be considered as a semi-hollow structure, which reduces obstruction to signal transmission compared to a solid filler strip, thereby reducing insertion loss and improving transmission performance. Compared to foam filler strips, this design is more cost-effective because it only requires adjustments to existing production lines without the need for additional foam material costs.
[0035] In this embodiment, during the production of the filler strip, some raised ribs are added to the outer mold from which the filler strip is extruded, so that the filler strip will form regular grooves 120 on the surface after passing through the outer mold.
[0036] Example 3:
[0037] like Figure 3 As shown, based on the above embodiment 2, the filler strip body 100 is configured with a cross-shaped cross section, and the filler strip body 100 includes four blade portions 130, with each groove 120 distributed on the surface of the four blade portions 130.
[0038] The third embodiment defines the structure of the filler strip body 100 based on the second embodiment. Specifically, the third embodiment is based on a cross-shaped structure with grooves 120 provided on the surface of the four blade portions 130.
[0039] like Figures 1-3As shown, a cable comprises a filler strip, further comprising a sheath 200 and at least two groups of twisted pairs of wires 300, the filler strip body 100 is arranged in the sheath 200 and separates the space in the sheath 200 into at least two sub-cavities, and the twisted pairs of wires 300 are arranged in the sub-cavities.
[0040] The cable embeds the filler strip in the sheath 200, effectively separates the space in the sheath 200 into multiple sub-cavities, and arranges a group of twisted pairs of wires 300 in each sub-cavity. The use of the filler strip can avoid direct contact between the wire pairs, reduce crosstalk and signal interference between the wire pairs, and improve the transmission performance of the cable. The special design of the filler strip body 100, which is provided with a hollow structure or a groove 120 structure on the surface, can further reduce the influence of insertion loss and reduce the manufacturing cost of the cable.
[0041] Preferably, the sheath 200 is provided with a tear rope 400. The sheath 200 serves as the external protective layer of the cable, not only provides physical protection, but also can be built-in with the tear rope 400, facilitating stripping and installation of the cable.
[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0043] In addition, in the present application, the description such as "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0044] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0045] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but must be based on that a person having ordinary skill in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of such technical solutions does not exist, also not within the protection scope required by the utility model.
Claims
1. A filling bar, characterized in that The application relates to a filling strip, comprising: a filling strip body (100), the surface of the filling strip body (100) being provided with a hollow structure formed by piercing and / or being provided with a groove (120) structure formed by extrusion; the filling strip body (100) is provided with a structure in the shape of a cross section or a structure in the shape of a cross section; the filling strip body (100) has a plurality of piercing holes (110) arranged in a penetrating mode, and each piercing hole (110) is uniformly arranged along the width direction and the length direction of the filling strip body (100); or the surface of the filling strip body (100) is provided with a plurality of grooves (120), and each groove (120) is uniformly arranged along the width direction and the length direction of the filling strip body (100); the filling strip body (100) is arranged to reduce the dielectric effect through the piercing holes (110) or the grooves (120).
2. A filling bar according to claim 1, characterized in that: The filling strip body (100) is provided with a structure in the shape of a cross section, and the filling strip body (100) comprises four blade parts (130), and each groove (120) is distributed on the surface of the four blade parts (130).
3. A cable, characterized by The application relates to a filling strip, comprising: the filling strip as claimed in any one of claims 1-2, further comprising a sheath (200) and at least two groups of twisted pairs (300), the filling strip body (100) is arranged in the sheath (200) and divides the space in the sheath (200) into at least two sub-cavities, and the twisted pairs (300) are arranged in the sub-cavities.
4. The cable of claim 3, wherein: The sheath (200) is provided with a tearing rope (400).