CN214253955U

CN214253955U - Novel fireproof cable assembly

Info

Publication number: CN214253955U
Application number: CN202120228637.1U
Authority: CN
Inventors: 张朝晖; 陈冲
Original assignee: Zhongtong Cable Group Co ltd
Current assignee: Zhongtong Cable Group Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-21
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a fireproof cable field specifically discloses a novel fireproof cable subassembly, including the copper conductor, the outside of copper conductor is provided with the protective layer, the outside of protective layer is provided with the oversheath layer, install the fire prevention sheath between oversheath layer and the protective layer, the inside on oversheath layer is provided with fire retardant filling hole, the internally mounted that the outside in fire retardant filling hole is located the oversheath layer has the elastic layer. Through the inside a large amount of fire-retardant fire extinguishers of filling of the fire retardant filling hole that sets up in the inboard on outer jacket layer, when the external world on outer jacket layer takes place the naked light, when burning the damage to outer jacket layer skin, the fire retardant that is located fire retardant filling hole inside can flow out and put out flame to can prevent that the conflagration from continuing to stretch.

Description

Novel fireproof cable assembly

Technical Field

The utility model relates to a fireproof cable field specifically is a novel fireproof cable subassembly.

Background

The fireproof cable which is widely applied at the present stage mainly comprises two types of UL series flame-retardant cables and flame-retardant low-smoke halogen-free cables. The imported products mainly come from America and Europe, and because the standards of fireproof cables in America and Europe are not compatible with each other, the fireproof thought is greatly different, so that Party A and a design institute are in a passive state when selecting the products, and each has a respective reason, and finally, the products are often selected according to the actual situation of capital.

However, in the current fireproof means for fireproof cables in the market, the copper sheath is additionally arranged in the cable to prevent fire, and the fireproof effect cannot be well achieved when fire breaks out outside the cable. Accordingly, one skilled in the art has provided a novel fire-resistant cable assembly to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel fireproof cable subassembly to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel fireproof cable subassembly, includes the copper conductor, the outside of copper conductor is provided with the protective layer, the outside of protective layer is provided with the oversheath layer, install the fire prevention sheath between oversheath layer and the protective layer, the inside on oversheath layer is provided with fire retardant filling hole, the internally mounted that the outside in fire retardant filling hole is located the oversheath layer has the elastic layer.

As a further aspect of the present invention: the flame retardant filling hole is communicated with the outer sheath layer, and the elastic layer is an elastic flame-retardant rubber component.

As a further aspect of the present invention: the fireproof sheath is a copper material component, and the copper conductor is a halogen-free plastic material component.

As a further aspect of the present invention: the outside of copper conductor is provided with flexible layer, the outside on flexible layer is provided with the mineral substance insulating layer.

As a further aspect of the present invention: install the shielding layer between mineral substance insulating layer and the flexible layer, the flexible layer is flexible polyethylene material component, the mineral substance insulating layer is mica material component, shielding layer and mineral substance insulating layer fixed connection.

As a further aspect of the present invention: and the inner side of the protective layer is provided with a flame-retardant filling layer which is a magnesium oxide material component.

Compared with the prior art, the beneficial effects of the utility model are that: the device main part that sets up, a large amount of fire-retardant fire extinguishers are filled to the fire retardant filling hole inside through the inboard setting at the oversheath layer, when the external world when the oversheath layer takes place the naked light, when burning the damage to the oversheath layer skin, the fire retardant that is located fire retardant filling hole inside can flow out and put out flame, thereby can prevent that the conflagration from continuing to stretch, the fire prevention sheath with be located the setting of the inside elastic layer of oversheath layer, can increase the holistic durability of device, security and life in the cable use have been guaranteed.

Drawings

FIG. 1 is a schematic structural view of a novel fire-resistant cable assembly;

FIG. 2 is a cross-sectional view of the device as a whole in a novel fire-rated cable assembly;

fig. 3 is a schematic view of an outer copper conductor installation structure in a novel fireproof cable assembly.

In the figure: 1. a copper conductor; 2. a protective layer; 3. a fire-resistant sheath; 4. an outer jacket layer; 5. a flame retardant filler layer; 101. a mineral insulating layer; 102. a shielding layer; 103. a flexible layer; 401. filling the hole with a flame retardant; 402. an elastic layer.

Detailed Description

Referring to fig. 1-3, in an embodiment of the present invention, a novel fireproof cable assembly includes a copper conductor 1, a protective layer 2 is disposed on an outer side of the copper conductor 1, an outer sheath layer 4 is disposed on an outer side of the protective layer 2, a fireproof sheath 3 is disposed between the outer sheath layer 4 and the protective layer 2, a fire retardant filling hole 401 is disposed inside the outer sheath layer 4, and an elastic layer 402 is disposed inside the outer sheath layer 4 and outside the fire retardant filling hole 401.

In fig. 1, 2, 3: fire retardant filling hole 401 and oversheath layer 4 through connection, elastic layer 402 is the fire-retardant rubber material component of elasticity, fire-proof sheath 3 is the copper product component, copper conductor 1 is the halogen-free plasticity material component, copper conductor 1's the outside is provided with flexible layer 103, the outside of flexible layer 103 is provided with mineral substance insulating layer 101, install shielding layer 102 between mineral substance insulating layer 101 and the flexible layer 103, flexible layer 103 is the flexible polyethylene material component, mineral substance insulating layer 101 is the mica material component, shielding layer 102 and mineral substance insulating layer 101 fixed connection, the inboard of protective layer 2 is provided with fire-retardant filling layer 5, fire-retardant filling layer 5 is the magnesium oxide material component.

In fig. 1, 2: through the inside a large amount of fire-retardant fire extinguishers of filling of fire retardant filling hole 401 that sets up in the inboard of outer sheath layer 4, when the external world of outer sheath layer 4 takes place the naked light, when burning the damage to outer sheath layer 4 skin, the fire retardant that is located fire retardant filling hole 401 inside can flow out and put out flame to can prevent that the conflagration from continuing to stretch.

In fig. 1, 3: the mineral insulating layer 101 is made of inorganic materials, smoke halogen and toxic gas can not be generated in flame, the arrangement of the fireproof sheath 3 and the elastic layer 402 positioned inside the outer sheath layer 4 can increase the durability of the whole device, and the device can bear violent mechanical impact without damaging the electric conductivity, so that the electric cable capable of resisting mechanical impact can still normally work under the conditions of bending, flattening, twisting and the like even under the condition of outer diameter deformation of the cable.

The utility model discloses a theory of operation is: the fire retardant filling holes 401 arranged on the inner side of the outer sheath layer 4 are filled with a large number of fire retardant extinguishers, when open fire occurs outside the outer sheath layer 4 and the outer layer of the outer sheath layer 4 is burnt and damaged, the fire retardant positioned in the fire retardant filling holes 401 flows out to extinguish the fire, so that the fire can be prevented from continuously spreading, the mineral insulating layer 101 is made of inorganic materials, smoke halogen and toxic gas can not be generated in the fire, the arrangement of the fire retardant sheath 3 and the elastic layer 402 positioned in the outer sheath layer 4 can increase the durability of the whole device, the device can bear violent mechanical impact without damaging the conductivity, so that the electric resistance mechanical impact cable can still normally work even under the conditions of bending, flattening, twisting and the like and even under the condition of the deformation of the outer diameter of the cable, short circuit can not be generated, and the electrical performance can not be influenced, the fireproof sheath 3 is a copper material component, and the resistance of copper is extremely low, so that excellent low grounding electricity can be provided.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel fireproof cable assembly, includes copper conductor (1), its characterized in that, the outside of copper conductor (1) is provided with protective layer (2), the outside of protective layer (2) is provided with oversheath layer (4), install fire prevention sheath (3) between oversheath layer (4) and protective layer (2), the inside of oversheath layer (4) is provided with fire retardant filling hole (401), the outside of fire retardant filling hole (401) is located the internally mounted of oversheath layer (4) has elastic layer (402).

2. The novel fireproof cable assembly of claim 1, wherein the flame retardant filling hole (401) is connected to the outer sheath layer (4) in a penetrating manner, and the elastic layer (402) is made of elastic flame retardant rubber.

3. A novel fire-resistant cable assembly according to claim 1, wherein the fire-resistant sheath (3) is a copper material member and the copper conductor (1) is a halogen-free plastic material member.

4. A novel flameproof cable assembly according to claim 1, characterised in that the copper conductor (1) is provided with a flexible layer (103) on the outside, the flexible layer (103) being provided with a mineral insulation layer (101) on the outside.

5. A novel fireproof cable assembly according to claim 4, wherein a shielding layer (102) is installed between the mineral insulating layer (101) and the flexible layer (103), the flexible layer (103) is a flexible polyethylene material, the mineral insulating layer (101) is a mica material, and the shielding layer (102) is fixedly connected with the mineral insulating layer (101).

6. A novel flameproof cable assembly according to claim 1, characterized in that the inside of the protective layer (2) is provided with a flame-retardant filler layer (5), and the flame-retardant filler layer (5) is a magnesium oxide material.