CN213025491U - Ceramic fireproof cable - Google Patents

Abstract

The utility model discloses a ceramic fireproof cable, which comprises an outer sheath and an electric core, wherein the outer sheath is provided with an inner cavity, the outer sheath comprises an insulating layer, a fireproof layer, a buffer layer, a ceramic silicon rubber layer and a wear-resistant layer which are sequentially arranged from inside to outside, and a plurality of soft rubber balls for shock absorption are arranged in the buffer layer at intervals; a support column is arranged at the center of the inner cavity, a plurality of support plates are arranged on the periphery of the support column, a top plate is arranged on one side of each support plate away from the support column, and the top plates are attached to the inner side wall of the insulating layer; the battery cell is arranged between two adjacent supporting plates, an air cavity is arranged between the battery cell and the insulating layer, a reinforcing plate is also arranged between the two adjacent supporting plates, the reinforcing plate separates the battery cell from the air cavity, and two ends of the reinforcing plate are respectively connected with two adjacent top plates; the utility model discloses have excellent fire resistance, can not produce a large amount of harmful gas when burning, reduce the pollution to the environment and the injury to the human body to have certain fire control effect, slow down the spontaneous combustion and stretch.

Description

Ceramic fireproof cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to pottery fireproof cable.

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and is used for transmitting power or information from one place to another place. The cable is classified into a power cable, a control cable, a compensation cable, a shield cable, a high temperature cable, a computer cable, a signal cable, a coaxial cable, a fire resistant cable, a marine cable, a mining cable, an aluminum alloy cable, and the like. At present, application places of cables are relatively complex, and the complex places pose little challenge to the safe operation of the cables, wherein fires are one of important factors influencing the safe operation of the cables, and how to ensure the normal operation of the cables under the high-temperature condition is a technical problem to be solved by cable production enterprises.

In the prior art, widely used fire-resistant cables are mainly of a traditional process structure that mica tapes are wrapped around conductors, and a few of the fire-resistant cables are mineral insulated cables. Traditional mica tape is around package cable, the refractory time is short, the residue is powdered structure after the burning, consequently can not continue to play a role, furthermore, mica tape contains the cellosilk composition, the cellosilk is made for tiny fiber material, easy rupture is floated, float in the air easily in process of production, cause the injury to the human body, meanwhile, when the cable takes place the burning, can release toxic gas, the polluted environment, and cause serious harm to human healthy, so urgent need to propose one kind and carry out the novel cable of improvement to current fireproof cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem that exists among the prior art, provide a pottery fire prevention cable, have excellent fire resistance, can not produce a large amount of harmful gas when burning, reduce the pollution to the environment and the injury to the human body to certain fire control effect has, slows down the spontaneous combustion and stretches.

The technical scheme of the utility model is that:

a ceramic fireproof cable is characterized by comprising an outer sheath and a battery cell, wherein the outer sheath is provided with an inner cavity, the outer sheath comprises an insulating layer, a fireproof layer, a buffer layer, a ceramic silicon rubber layer and a wear-resistant layer which are sequentially arranged from inside to outside, and a plurality of soft rubber balls for shock absorption are arranged in the buffer layer at intervals; a support column is arranged at the center of the inner cavity, a plurality of support plates are arranged on the periphery of the support column, a top plate is arranged on one side of each support plate, which is far away from the support column, and the top plates are attached to the inner side wall of the insulating layer; the battery cell is arranged between two adjacent supporting plates, an air cavity is arranged between the battery cell and the insulating layer, a reinforcing plate is further arranged between the two adjacent supporting plates, the battery cell and the air cavity are separated by the reinforcing plate, and two ends of the reinforcing plate are respectively connected with the two adjacent top plates.

Further, a ceramic fiber material is filled in the buffer layer.

Further, a ceramic fiber material is filled in the gap of the inner cavity.

Furthermore, the air cavity is filled with helium.

Further, the number of the support plates is consistent with that of the battery cores.

Furthermore, the support column is made of a metal material capable of being bent and shaped.

The utility model has the advantages that:

the utility model has the advantages that through the design of the multilayer structure, the cable has excellent wear resistance and shock absorption, can adapt to various terrain environments and use places, and prolongs the service life of the cable; through setting up ceramic silicon rubber layer and adding fire-proof material, make the cable have good fire resistance and fire resistance, can make the cable keep normal circular telegram in the fire hazard environment to set up the inert gas chamber, carry out fire-retardant and put out a fire when taking place the spontaneous combustion in the cable, prevent to initiate the conflagration.

Drawings

Fig. 1 is a schematic view of a cable profile structure provided by the present invention;

fig. 2 is a schematic diagram of the inner cavity structure provided by the present invention;

in the figure, 1, a wear-resistant layer; 2. a silicon rubber layer is ceramic; 3. a buffer layer; 31. soft rubber balls; 4. a fire barrier layer; 5. an insulating layer; 6. an inner cavity; 61. an air cavity; 7. an electric core; 8. a pillar; 81. a support plate; 82. a top plate; 83. a reinforcing plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It is to be understood that the terms "outside, inside, center, side, end, between, and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting; in addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1, the utility model relates to a ceramic fireproof cable, which comprises an outer sheath provided with an inner cavity 6 and a plurality of electric cores 7, wherein the outer sheath comprises an insulating layer 5, a fireproof layer 4, a buffer layer 3, a ceramic silicon rubber layer 2 and a wear-resistant layer 1 which are arranged from inside to outside in sequence, the wear-resistant layer 1 is arranged at the outermost side of the outer sheath, and the whole cable is protected and wear-resistant, so that the cable is prevented from being damaged due to friction in the using and laying process; evenly set up a plurality of soft rubber balls 31 in buffer layer 3's inside for slow down and come from the outside pressure of cable, avoid causing the damage to cable inner structure.

As shown in fig. 2, in the fireproof cable, the cross sections of the outer sheath and the inner cavity 6 are concentric, a pillar 8 is disposed at the center of the cross section of the inner cavity 6, and a plurality of support plates 81 are uniformly disposed on the outer wall of the pillar 8 in the circumferential direction, in this embodiment, four battery cells 7 and four support plates 81 are disposed, and a person skilled in the art may set a plurality of battery cells 7 and support plates 81 according to practical application or requirements; a top plate 82 is fixedly arranged on one side of each supporting plate 81, which is far away from the support column 8, each top plate 82 is attached to the inner side wall of the insulating layer 5, the supporting plates 81 and the top plates 82 are arranged in the inner cavity 6 to play a certain supporting role on the whole outer sheath, and the damage to the cable caused by the inward deformation of the outer sheath due to the extrusion of the cable from the outside is avoided; the electric core 7 is respectively arranged between two adjacent supporting plates 81, an air cavity 61 with inert gas inside is also arranged between the electric core 7 and the insulating layer 5, and the air cavity 61 can release the inert gas in the cavity when the cable spontaneously ignites, so that the air is isolated, and a good flame retardant effect is achieved on the cable; in addition, a reinforcing plate 83 is further arranged between the battery cell 7 and the air cavity 61, the battery cell 7 is separated from the air cavity 61 by the reinforcing plate 83, and two ends of the reinforcing plate 83 are respectively and fixedly connected with two adjacent top plates 82, so that each battery cell 7 is uniformly surrounded and wrapped by the reinforcing plate 83 and the supporting plate 81, each battery cell 7 has an independent working space, the battery cells 7 cannot be contacted with each other, and the situation that the battery cells 7 are mutually extruded or collided and abraded in the installation and use process of a cable is avoided; the reinforcing plate 83 is also provided to provide a certain fastening and reinforcing effect to the supporting structure formed by the supporting plate 81 and the top plate 82, so that the supporting plate 81 is not easily deformed when being pressed by the outside.

In the present embodiment, the gaps in the buffer layer 3 and the inner cavity 6 of the cable are filled with ceramic fibers, on one hand, the filled ceramic fibers have the characteristics of light weight, high temperature resistance, good thermal stability and the like, so that the overall weight of the cable is reduced, the cable is convenient to carry and arrange, and meanwhile, the cable has a good heat insulation effect; on the other hand, the filled ceramic fibers can fix the soft rubber balls 31 in the buffer layer 3, and also fix the battery cells 7, the support plate 81 and the reinforcing plate 83 arranged in the inner cavity 6, so as to prevent the displacement of the battery cells in the inner cavity 6 and damage the internal structure.

Furthermore, in the present embodiment, the inert gas filled in the air cavity 61 is helium gas, which is a colorless, tasteless, nontoxic inert gas, inert in nature, and incombustible gas without being combined with other elements or compounds in a normal state, so that when spontaneous combustion occurs inside the cable, the helium gas in the air cavity 61 is released after being heated and expanded, and oxygen is isolated to achieve the effect of extinguishing the fire, thereby avoiding the hazards such as fire caused by the continuous spontaneous combustion of the cable; meanwhile, excessive harmful gas cannot be generated, and the health of people is harmed.

In the present embodiment, the support column 8 is made of a metal pipe capable of being bent and shaped, and the support column 8 is used for fixing and forming the whole cable, so that the shape of the cable is not easy to change under the non-manual action.

The design scheme has the advantages that through the design of a multilayer structure, the cable has excellent wear resistance and shock absorption, is suitable for use places in various terrain environments, and prolongs the service life of the cable; through setting up ceramic silicon rubber layer and fire-proof material, make the cable have good fire resistance and fire resistance, can make the cable keep normal circular telegram in the fire hazard environment to set up the inert gas chamber, carry out fire-retardant and put out a fire when taking place the spontaneous combustion in the cable, prevent to initiate the conflagration.

The foregoing description of the specific embodiments of the present invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and it is apparent that numerous changes and modifications may be made in the foregoing description, the examples having been selected and described to illustrate the specific principles and practical application of the invention, to thereby enable one skilled in the art to make and use the invention in various embodiments and with various modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. The ceramic fireproof cable is characterized by comprising an outer sheath and an electric core (7), wherein the outer sheath is provided with an inner cavity (6), the outer sheath comprises an insulating layer (5), a fireproof layer (4), a buffer layer (3), a ceramic silicon rubber layer (2) and a wear-resistant layer (1) which are sequentially arranged from inside to outside, and a plurality of soft rubber balls (31) for shock absorption are arranged in the buffer layer (3) at intervals; a support column (8) is arranged at the center of the inner cavity (6), a plurality of support plates (81) are arranged in the circumferential direction of the support column (8), a top plate (82) is arranged on one side, away from the support column (8), of each support plate (81), and the top plate (82) is attached to the inner side wall of the insulating layer (5); the battery cell (7) is arranged between two adjacent supporting plates (81), an air cavity (61) is arranged between the battery cell (7) and the insulating layer (5), a reinforcing plate (83) is further arranged between two adjacent supporting plates (81), the battery cell (7) is separated from the air cavity (61) by the reinforcing plate (83), and two ends of the reinforcing plate (83) are respectively connected with two adjacent top plates (82).

2. A ceramic fireproof cable according to claim 1, wherein the buffer layer (3) is filled with ceramic fiber material.

3. A ceramic fireproof cable according to claim 1, wherein the voids of the inner cavity (6) are filled with ceramic fiber material.

4. A ceramic fireproof cable according to claim 1, wherein the air chamber (61) is filled with helium.

5. A ceramicized fireproof cable according to claim 1, wherein the number of support plates (81) corresponds to the number of cells (7).

6. A ceramic fireproof cable according to claim 1, wherein the support column (8) is made of a bendable metal material.

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