Electric wire and cable with fireproof separation layer

Abstract

The utility model relates to wire and cable technical field especially, more particularly to a kind of wire and cable with fireproof isolation layer, including conductor, shielding layer and insulating layer, three conductors are all provided with shielding layer, shielding layer is provided with insulating layer, still including flame retardant filling layer and setting block, flame retardant filling layer is provided between the insulating layer of three conductors, setting block is provided in flame retardant filling layer, and multiple trapezoidal through holes are formed in setting block. Flame propagation is inhibited by flame retardant filling layer on the insulating layer of three conductors, the setting block in it is annular and is uniformly divided by multiple partition plates inside, enhance the overall performance of cable, multiple trapezoidal through holes are provided on each partition plate simultaneously, to optimize heat dissipation path, prevent overheating, to realize the effect of fireproof isolation.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, and in particular to a wire and cable with a fireproof insulation layer. Background Technology

[0002] Electric wires and cables are electrical devices used to transmit electricity or signals, consisting of one or more conductors and an outer protective material.

[0003] Patent CN206075885U discloses an electric wire and cable. It includes a polyethylene insulation layer, three conductors encased in the polyethylene insulation layer, a metal shielding layer on the outside of the polyethylene insulation layer, a polyvinyl chloride (PVC) insulation layer on the outside of the metal shielding layer, and a transparent rubber anti-slip layer on the outside of the PVC insulation layer. Inside the polyethylene insulation layer is an insulating plastic layer that separates the three conductors. The insulating plastic layer is connected to the inner wall of the polyethylene insulation layer, and conductive paint is placed inside the insulating plastic layer, positioned between the three conductors. While this existing patent uses conductive paint inside the insulating plastic layer to form electromagnetic shielding, in the event of a fire, both polyethylene and PVC release large amounts of dense smoke and toxic gases, and lack a flame-retardant structure, leading to the burning of the electric wire and cable, failure of the ten-point electromagnetic interference protection, and impact on the quality of the cable's signal transmission.

[0004] Therefore, there is a need to provide a wire and cable with a fireproof insulation layer. Utility Model Content

[0005] To overcome the shortcomings of existing patents, which release large amounts of dense smoke and toxic gases from polyethylene and polyvinyl chloride in the event of a fire, and lack flame-retardant structures, leading to the burning of wires and cables, failure of ten-point electromagnetic interference protection, and impact on the quality of cable signal transmission, this utility model provides a wire and cable with a fireproof isolation layer. Through structures such as a flame retardant filling layer and shaping blocks, the fireproof isolation effect is achieved.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a fireproof insulation layer for an electric wire and cable, comprising three conductors, including conductors, a shielding layer, and an insulation layer. Each of the three conductors is provided with a shielding layer, and an insulation layer is provided on the shielding layer. Characteristically, it further includes a flame retardant filling layer and a shaping block. A flame retardant filling layer is provided between the insulation layers of the three conductors, and a shaping block is provided within the flame retardant filling layer. The shaping block has multiple trapezoidal flow holes.

[0007] More preferably, it also includes a ceramicized silicone rubber coating, with the ceramicized silicone rubber coating disposed on the insulating layer.

[0008] More preferably, it also includes a mica tape, with the mica tape disposed on the ceramicized silicone rubber coating.

[0009] More preferably, it also includes a mineral filling layer, in which the mica strips on the three conductors are covered by the mineral filling layer.

[0010] More preferably, it also includes an armor layer, with the armor layer disposed on the mineral filling layer.

[0011] More preferably, it also includes halogen-free flame-retardant polyolefin, and the flame retardant filler layer is provided with halogen-free flame-retardant polyolefin.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. The flame propagation is suppressed by the flame retardant filling layer on the insulation layer of the three conductors. The shaping block inside is circular and has multiple partition plates to evenly divide the space, thereby enhancing the overall performance of the cable. At the same time, multiple trapezoidal flow holes are provided on each partition plate to optimize the heat dissipation path and prevent overheating, thereby achieving the effect of fireproof isolation.

[0013] 2. The ceramicized silicone rubber coating, mica tape, mineral filling layer, armor layer and halogen-free flame-retardant polyolefin sheath can improve the cable's heat insulation, fire resistance and mechanical protection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the conductor, insulating layer, and armor layer of this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the flame retardant filler layer and the halogen-free flame retardant polyolefin of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the flame retardant filling layer and the shaping block of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1. Conductor, 2. Shielding layer, 3. Insulation layer, 4. Ceramicized silicone rubber coating, 5. Mica tape, 6. Mineral filling layer, 7. Armor layer, 8. Flame retardant filling layer, 9. Shaping block, 10. Trapezoidal flow hole, 11. Halogen-free flame retardant polyolefin. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example 1: A type of wire and cable with a fireproof insulation layer, see reference. Figures 1-4 As shown, the cable has three conductors 1, including conductor 1, shielding layer 2 and insulation layer 3. Each of the three conductors 1 is provided with shielding layer 2, and insulation layer 3 is provided outside shielding layer 2. The cable also includes flame retardant filling layer 8 and shaping block 9. Flame retardant filling layer 8 is provided between the outer sides of insulation layer 3 of the three conductors 1. Shaping block 9 is provided inside flame retardant filling layer 8. Shaping block 9 is circular and has multiple partition plates inside to maintain the stability of the internal structure of the cable. Multiple trapezoidal flow holes 10 are opened on the partition plates to provide additional mechanical support and heat dissipation path.

[0021] The three conductors 1, as the core of the cable, are mainly used to transmit electrical energy or signals. The shielding layer 2 covering each conductor 1 is used to distribute the electric field evenly and reduce partial discharge, thereby ensuring the stability of signal or power transmission. The insulation layer 3 wrapped on the shielding layer 2 provides good electrical insulation performance, prevents current leakage, and ensures the safety of the cable during normal operation. When the cable is exposed to fire, the flame retardant filling layer 8 on the insulation layer 3 of the three conductors 1 suppresses the spread of flames. The shaping block 9 inside is circular and has multiple partition plates to evenly divide the space, enhancing the overall performance of the cable. At the same time, multiple trapezoidal flow holes 10 are set on each partition plate to optimize the heat dissipation path and prevent overheating, thereby achieving the effect of fireproof isolation.

[0022] Example 2: Based on Example 1, refer to Figure 2 As shown, it also includes a ceramicized silicone rubber coating 4, and the outer side of the insulating layer 3 is provided with a ceramicized silicone rubber coating 4.

[0023] See Figure 2 As shown, it also includes a mica strip 5, and the outer side of the ceramicized silicone rubber coating 4 is provided with a mica strip 5.

[0024] See Figure 2 As shown, it also includes a mineral filling layer 6, and the mica strips 5 on the three conductors 1 are covered by the mineral filling layer 6.

[0025] See Figure 2 As shown, it also includes an armor layer 7, an armor layer 7 disposed on the outside of a mineral filling layer 6, a ceramicized silicone rubber coating 4, a mica tape 5, a mineral filling layer 6 and an armor layer located between an insulating layer 3 and a flame retardant filling layer 8.

[0026] See Figure 2 and Figure 3 As shown, it also includes a halogen-free flame-retardant polyolefin 11, and the flame-retardant filler layer 8 is provided with a halogen-free flame-retardant polyolefin 11 on the outside.

[0027] When exposed to fire, the ceramicized silicone rubber coating 4 carbonizes at high temperatures to form a dense ceramic layer, providing excellent heat insulation, fire resistance, and mechanical protection. The mica tape 5 further provides high-temperature insulation protection, preventing the insulation layer 3 from being directly exposed to flames. The mineral-filled layer 6 has good fire resistance and thermal conductivity, absorbing heat and slowing down temperature rise, significantly extending the cable's continuous power supply time in extreme environments. The armor layer 7 provides additional mechanical protection, preventing external physical damage and improving the cable's safety and durability. The halogen-free flame-retardant polyolefin sheath 11 has good flame-retardant and weather-resistant properties, and does not release toxic gases or large amounts of dense smoke when burning, meeting the high safety and environmental protection standards of modern buildings.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fireproof cable with a fireproof insulation layer, comprising three conductors (1), including conductors (1), a shielding layer (2), and an insulation layer (3), wherein each of the three conductors (1) is provided with a shielding layer (2), and an insulation layer (3) is provided on the shielding layer (2), characterized in that, It also includes a flame retardant filling layer (8) and a shaping block (9). A flame retardant filling layer (8) is provided between the insulation layers (3) of the three conductors (1). A shaping block (9) is provided inside the flame retardant filling layer (8). Multiple trapezoidal flow holes (10) are opened on the shaping block (9).

2. A wire and cable with a fireproof insulation layer according to claim 1, characterized in that, It also includes a ceramicized silicone rubber coating (4), and the insulating layer (3) is provided with a ceramicized silicone rubber coating (4).

3. A wire and cable with a fire-resistant insulation layer according to claim 2, characterized in that, It also includes a mica strip (5), and the ceramicized silicone rubber coating (4) is provided with a mica strip (5).

4. A wire and cable with a fireproof insulation layer according to claim 3, characterized in that, It also includes a mineral filling layer (6), and the mica strips (5) on the three conductors (1) are covered by the mineral filling layer (6).

5. A wire and cable with a fireproof insulation layer according to claim 4, characterized in that, It also includes an armor layer (7), which is provided on the mineral filling layer (6).

6. A wire and cable with a fire-resistant insulation layer according to claim 5, characterized in that, It also includes halogen-free flame-retardant polyolefin (11), and halogen-free flame-retardant polyolefin (11) is disposed on the flame retardant filler layer (8).

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