A flame-retardant and high-temperature resistant 5G cable

Abstract

The present invention discloses a flame-retardant and high-temperature resistant 5G cable, comprising a core wire layer, a braided layer, a thermal insulation adhesive layer and a protective layer which are arranged in layers from the inside to the outside, wherein glass fiber powder is dispersed in the thermal insulation adhesive layer; the glass fiber powder has high heat resistance and thermal insulation performance, and can form an air gap in the thermal insulation adhesive layer, so that after the thermal insulation adhesive layer is added, the invasion of external heat can be well isolated, and the thermal insulation adhesive layer mixed with the glass fiber powder has improved bending strength. The design has high flame-retardant and high-temperature resistant performance, and can effectively isolate the interference of temperature factors on the core wire layer.

Description

Technical Field

[0001] The present invention relates to the field of power cables, in particular to 5G cables. Background Art

[0002] With the development of transmission technology, transmission technology has gradually entered the 5G era from the 4G era. In terms of transmitting electromagnetic waves, 5G requires a significant increase in transmission rate, bandwidth and frequency. Therefore, accessories used in 5G also need to be improved accordingly to adapt to transmission.

[0003] Traditional cables are generally insulated by the thermal insulation rubber on the outermost layer and the braided layer in the middle layer to prevent heat from affecting the core layer. The traditional thermal insulation by thermal insulation rubber and braided layer alone can no longer meet the needs of 5G transmission. Although the current flame retardant improvements to cables can improve the thermal insulation and flame retardant properties to a certain extent, they may cause significant changes in the cable's flexibility and other properties, which cannot meet the wiring requirements. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a flame-retardant and high-temperature resistant 5G cable that can effectively isolate temperature interference.

[0005] The technical solution adopted by the present invention is:

[0006] A flame-retardant and high-temperature resistant 5G cable comprises a core wire layer, a braided layer, a thermal insulation adhesive layer and a protective layer which are arranged in layers from the inside to the outside, wherein glass fiber powder is dispersed in the thermal insulation adhesive layer.

[0007] The thermal insulation adhesive layer is made of polyvinyl chloride resin or halogen-free ceramic silica gel.

[0008] There is a heat insulating gap between the heat insulating adhesive layer and the protective layer.

[0009] The braided layer is a flame retardant fiber braided layer.

[0010] The core wire layer includes a shielding frame, a buffer and multiple core wires. In the cross section, the shielding frame divides the inside of the braided layer into multiple accommodating channels, each accommodating channel has at least one core wire, and the buffer fills the gap between the accommodating channel and the core wire.

[0011] The core wire comprises a copper wire component and an insulating sheath wrapped on the copper wire component, and the copper wire component comprises at least two copper wires which are spirally twisted with each other.

[0012] The shielding frame is a soft metal frame.

[0013] The buffer is aramid or resin filler.

[0014] A soft guide strip is arranged in the braided layer.

[0015] One of the above technical solutions has at least one of the following advantages or beneficial effects:

[0016] The 5G cable of the present invention adds a thermal insulation adhesive layer formed of a thermal insulation material between the protective layer and the braided layer, and glass fiber powder is mixed in the thermal insulation adhesive layer. The glass fiber powder has high heat resistance and thermal insulation performance, and can form an air gap in the thermal insulation adhesive layer, so that after the thermal insulation adhesive layer is added, the invasion of external heat can be well isolated, and the thermal insulation adhesive layer mixed with glass fiber powder has improved bending strength. The present design has high flame retardancy and high temperature resistance, and can effectively isolate the interference of temperature factors on the core layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 Schematic diagram of the cross section of the cable of the present invention. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] like Figure 1 As shown, a flame-retardant and high-temperature resistant 5G cable includes a core wire layer 1, a braided layer 2, a thermal insulation adhesive layer 3 and a protective layer 4 arranged in layers from the inside to the outside, and glass fiber powder 31 is dispersed in the thermal insulation adhesive layer 3.

[0024] Among them, the protective layer 4 can be composed of heat-resistant rubber or heat-resistant silicone, and the thermal insulation adhesive layer 3 is made of polyvinyl chloride resin or halogen-free ceramic silicone. The polyvinyl chloride resin or halogen-free ceramic silicone itself has high resistance to thermal shock. A thermal insulation adhesive layer 3 formed of thermal insulation material is added between the protective layer 4 and the braided layer 2. Glass fiber powder is mixed in the thermal insulation adhesive layer 3. The glass fiber powder 31 has high heat resistance and temperature insulation performance, and can form an air gap in the thermal insulation adhesive layer 3, so that after the thermal insulation adhesive layer 3 is added, the invasion of external heat can be well isolated, and the thermal insulation adhesive layer 3 mixed with the glass fiber powder 31 has improved bending strength. The design has high flame retardancy and high temperature resistance, and can effectively isolate the interference of temperature factors on the core layer.

[0025] In some embodiments, there is a heat-insulating gap between the heat-insulating adhesive layer 3 and the protective layer 4. The flame-retardant and heat-insulating performance can be further improved by using a certain heat-insulating gap.

[0026] In some embodiments, the braided layer 2 is a flame-retardant fiber braided layer, which can protect the core wire layer from or less from erosion by light, heat, and the like.

[0027] In certain embodiments, such as Figure 1 As shown, the core wire layer 1 includes a shielding skeleton 11, a buffer 12 and a plurality of core wires 13. In the cross section, the shielding skeleton 11 divides the interior of the braided layer 2 into a plurality of accommodating channels, each of which has at least one core wire 13, and the buffer 12 fills the gap between the accommodating channel and the core wire 13.

[0028] Due to the significant increase in transmission rate, bandwidth and frequency, it is more susceptible to interference. The shielding skeleton 11 is used to separate the inside of the braided layer. For the core wires 13 that transmit the same signal and will not interfere with each other, they can be set in the same accommodating channel, while the core wires 13 that may interfere with each other are separated in different accommodating channels, thereby reducing interference.

[0029] In some embodiments, the core wire 13 includes a copper wire component 131 and an insulating sheath 132 wrapped around the copper wire component 131, the copper wire component 131 includes at least two copper wires spirally twisted with each other, the shielding skeleton 11 is a soft metal skeleton, the buffer 12 is aramid or resin filler, and the insulating sheath 132 can be a fiber braided layer. This design has high insulation, heat insulation, and tensile resistance.

[0030] In order to further improve the hardness of the cable, a soft guide strip 5 is provided in the braided layer 2, and the guide strip can be a metal wire with relatively high hardness.

[0031] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A flame-retardant and high-temperature resistant 5G cable, characterized in that: It includes a core wire layer, a braided layer, a thermal insulation adhesive layer and a protective layer arranged in layers from the inside to the outside, wherein glass fiber powder is dispersed in the thermal insulation adhesive layer; The thermal insulation adhesive layer is made of polyvinyl chloride resin or halogen-free ceramic silica gel; There is a heat-insulating gap between the heat-insulating adhesive layer and the protective layer; The braided layer is a flame retardant fiber braided layer; The core wire layer includes a shielding frame, a buffer and a plurality of core wires. In a cross section, the shielding frame divides the interior of the braided layer into a plurality of accommodating channels, each accommodating channel has at least one core wire, and the buffer fills the gap between the accommodating channel and the core wire; The core wire comprises a copper wire assembly and an insulating sheath wrapped on the copper wire assembly, wherein the copper wire assembly comprises at least two copper wires spirally twisted with each other; The shielding frame is a soft metal frame; The buffer is aramid or resin filler; A soft guide strip is arranged in the braided layer.

Images