CN220306006U

CN220306006U - Stretch-proofing fireproof cable

Info

Publication number: CN220306006U
Application number: CN202321736982.1U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-01-05
Anticipated expiration: 2033-07-04

Abstract

The utility model provides a stretch-proofing fireproof cable, relates to electricity transmission technical field, includes sinle silk, first insulating layer, inner sheath, flame retardant coating and the oversheath that from inside to outside set up, still be provided with in the first insulating layer and strengthen core and supporting component, supporting component's one end is connected strengthen the core, the other end is connected first insulating layer, the flame retardant coating includes from inside to outside carbon fiber layer and ceramic fiber layer that sets up. The support component forms a support between the reinforcing core and the first insulating layer, and can prevent the cable from deforming when the cable is pressed by external force. The fireproof layer made of the ceramic fiber layer and the carbon fiber layer can not only enable the cable to effectively resist high temperature and greatly improve the fireproof performance of the cable, but also increase the toughness of the cable and prevent the cable from being damaged by tensile force.

Description

Stretch-proofing fireproof cable

Technical Field

The utility model relates to the technical field of electric transmission, in particular to a stretch-proofing fireproof cable.

Background

The cable is typically twisted from several wires or groups of wires, each group being insulated from each other and often twisted around a center, and covered entirely with a highly insulating coating. The cable has an inner energized, outer insulated feature. The current cables are increasingly used and are often applied to various complex environments. However, existing cables generally have the disadvantages that 1, the overall structure lacks sufficient support to stabilize the cable and the cable deforms when subjected to pressure; 2. poor stretch resistance, and can not effectively resist external stretching force; 3. the heat resistance of the cable structure is insufficient, and damage to the cable caused by high temperature cannot be effectively resisted. Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a stretch-proof fireproof cable, which comprises a cable core, a first insulating layer, an inner sheath, a fireproof layer and an outer sheath, wherein the cable core, the first insulating layer, the inner sheath, the fireproof layer and the outer sheath are arranged from inside to outside, and the stretch-proof fireproof cable is characterized in that: the fire-proof insulating layer comprises a carbon fiber layer and a ceramic fiber layer, wherein the carbon fiber layer and the ceramic fiber layer are arranged from inside to outside.

The support assembly comprises a support rod and fixing blocks arranged at two ends of the support rod, and the fixing blocks are respectively connected with the reinforcing core and the first insulating layer.

The support rod and the fixing block are made of carbon fiber.

The support components are uniformly arranged along the extending direction of the wire core.

The wire core comprises a conductor arranged inside and a conductor insulating layer wrapping the conductor.

And a data transmission line is further arranged in the insulating layer, and a data line insulating layer is arranged outside the data transmission line.

And a first shielding layer is arranged outside the data line insulating layer.

The outer sheath includes a second shielding layer and a second insulating layer disposed from inside to outside.

The second shielding layer and the first shielding layer are made of different materials.

The beneficial effects of the utility model are as follows: the support component forms a support between the reinforcing core and the first insulating layer, and can prevent the cable from deforming when the cable is pressed by external force. The fireproof layer made of the ceramic fiber layer and the carbon fiber layer can not only enable the cable to effectively resist high temperature and greatly improve the fireproof performance of the cable, but also increase the toughness of the cable and prevent the cable from being damaged by tensile force.

Drawings

Elements and features described in one drawing or one implementation of an embodiment of the present application may be combined with elements and features shown in one or more other drawings or implementations. Furthermore, in the drawings, like reference numerals designate corresponding parts throughout the several views, and may be used to designate corresponding parts as used in more than one embodiment.

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:

fig. 1 is a cross-sectional view of a stretch-resistant fire-resistant electrical cable of the present utility model.

Fig. 2 is a cross-sectional view of the inside of a first insulation layer of a stretch-proof fire-resistant electrical cable of the present utility model.

[ reference numerals description ]

2-oversheath, 201-second shielding layer, 202-second insulating layer, 3-fire-resistant layer, 301-carbon fiber layer, 302-ceramic fiber layer, 4-inner sheath, 5-first insulating layer, 6-reinforcing core, 7-supporting component, 701-fixed block, 702-supporting rod, 8-fiber core, 801-conductor, 802-conductor insulating layer, 9-data transmission line, 901-data line insulating layer, 902-first shielding layer.

Detailed Description

The foregoing and other features of the present application will become apparent from the following description, with reference to the accompanying drawings. In the specification and drawings, there have been specifically disclosed specific embodiments of the present application which are indicative of some of the embodiments in which the principles of the present application may be employed, it being understood that the present application is not limited to the described embodiments, but, on the contrary, the present application includes all modifications, variations and equivalents falling within the scope of the appended claims. Various embodiments of the present application are described below with reference to the accompanying drawings. These embodiments are merely exemplary and are not limiting of the present application.

In the embodiments of the present application, the terms "first," "second," and the like are used to distinguish between different elements from each other by reference, but do not denote a spatial arrangement or a temporal order of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprises," "comprising," "including," "having," and the like, are intended to reference the presence of stated features, elements, components, or groups of components, but do not preclude the presence or addition of one or more other features, elements, components, or groups of components.

In the embodiments of the present application, the singular forms "a," an, "and" the "include plural referents and should be construed broadly to mean" one "or" one type "and not limited to" one "or" another; furthermore, the term "comprising" is to be interpreted as including both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "at least partially according to … …", and the term "based on" should be understood as "based at least partially on … …", unless the context clearly indicates otherwise.

The utility model provides a stretch-proofing fireproof cable, includes from inside and outside setting sinle silk 8, first insulating layer 5, inner sheath 4, flame retardant coating 3 and oversheath 2, as shown in fig. 1 and 2, still be provided with in the first insulating layer 5 and strengthen core 6 and supporting component 7, supporting component 7's one end is connected strengthen core 6, the other end is connected first insulating layer 5, flame retardant coating 3 includes from inside and outside carbon fiber layer 301 and ceramic fiber layer 302 that set up.

In the cable provided by the utility model, the outermost side of the cable is the outer sheath 2 made of polysulfide rubber, the inner side of the outer sheath 2 is the fireproof layer 3 made of the ceramic fiber layer 302 and the carbon fiber layer 301, and the ceramic fiber layer 302 and the carbon fiber layer 301 have good toughness and can resist the pulling of the cable by external force. The inner side of the fireproof layer 3 is provided with an inner sheath 4, and the sheath 4 can further stabilize the cable structure. The inner side of the inner sheath 4 is a first insulating layer 5, the inner side of the first insulating layer 5 is a cavity for accommodating the wire core 8, a reinforcing core 6 is embedded in the cavity except the fiber core 8, the reinforcing core 6 can be a hard insulator, a supporting component 7 is arranged between the reinforcing core 6 and the first insulating layer 5, the reinforcing core 6 is arranged along the length direction of the cable, the supporting component 7 is arranged along the length direction of the reinforcing core 6, and a support is formed between the reinforcing core 6 and the first insulating layer 5. The cable is prevented from deforming when being pressed by external force. The heat resistance of the cable is increased by the outer sheath 2, the inner sheath 4 and the fireproof layer 3 which are made of polysulfide rubber materials, so that the high temperature can be effectively resisted, and the fireproof performance of the cable is greatly improved.

In some embodiments, as shown in fig. 2, the supporting component 7 includes a supporting rod 702 and fixing blocks 701 disposed at two ends of the supporting rod 702, and the fixing blocks 701 are respectively connected to the reinforcing core 6 and the first insulating layer 5. Preferably, the reinforcing core 6 and the inner surface of the first insulating layer 5 are respectively provided with three connecting and fixing blocks 701, the middle is provided with a supporting rod 702 for connecting and fixing support, the inner structure of the cable is supported and fixed by the triangular supporting structure, damage to the cable caused by external stretching and the like can be effectively resisted, and the protection performance of the cable is greatly improved.

In some embodiments, the support rods 702 and the fixing blocks 701 are made of carbon fiber. Carbon fiber refers to a high strength, high modulus fiber having a carbon content of 90% or more. High temperature resistant living in the first place of all chemical fibers. Acrylic fiber and viscose fiber are used as raw materials, and the material is prepared by high-temperature oxidization carbonization. The carbon fiber has excellent mechanical properties, so that the support component has a good support effect.

In some embodiments, the support members 7 are uniformly arranged along the extending direction of the wire core 8. The evenly arranged support members 7 make the individual support members 7 evenly stressed and more easily resistant to external pressure.

In some embodiments, the wire core 8 includes a conductor 801 disposed internally and a conductor insulation layer 802 surrounding the conductor 801. The first insulating layer 5 may be provided with a plurality of wire cores 8, and a conductor insulating layer 802 is provided outside the conductor 801 in order to prevent electrical connection between the wire cores 8.

In some embodiments, a data transmission line 9 is further disposed in the insulating layer 5, and a data line insulating layer 901 is disposed outside the data transmission line 9. The fiber core 8 performs power transmission, the data transmission line 9 performs electric signal transmission, the data transmission line 9 may be provided with a plurality of data transmission lines 9, and a data line insulating layer 901 is provided outside the data transmission line 9 in order to prevent electric connection between the data transmission lines 9.

In some embodiments, the data line insulating layer 901 is provided with a first shielding layer 902. The first shielding layer 901 can prevent strong electromagnetic interference generated during power transmission from affecting the accuracy of data transmission of the data transmission line 9. Preferably, an insulating layer is further covered on the outside of the first shielding layer 902, so that electrical connection between the first shielding layer 902 and the wire core 8 can be prevented when there is no insulating layer on the outside of the wire core 8. Since the first shielding layer 902 needs to be grounded by connecting an external conductor, if the wire core 8 is electrically connected to the first shielding layer 902, a short circuit or even an electric shock accident may easily occur during high voltage transmission.

In some embodiments, the outer sheath 2 includes a second shielding layer 201 and a second insulating layer 202 disposed from the inside out. The second shielding layer 201 can prevent electromagnetic interference generated when the wire core 8 performs electric energy transmission from affecting normal operation of other devices outside the cable, and the second insulating layer 202 can prevent the second shielding layer 201 from being in contact with other electrified devices to generate short circuit.

The second shielding layer 201 is made of a material different from that of the first shielding layer 902. The shielding layers made of different materials can shield shielding signals of different wave bands, and a better shielding effect is achieved.

Those skilled in the art will appreciate that, for convenience and brevity, specific working procedures of the above-described system, apparatus and unit may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or elements, or may be an electrical, mechanical, or other form of connection.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the elements may be selected according to actual needs to achieve the objectives of the embodiments herein.

In addition, each functional unit in the embodiments herein may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

Specific examples are set forth herein to illustrate the principles and embodiments herein and are merely illustrative of the methods herein and their core ideas; also, as will be apparent to those of ordinary skill in the art in light of the teachings herein, many variations are possible in the specific embodiments and in the scope of use, and nothing in this specification should be construed as a limitation on the utility model.

Claims

1. The utility model provides a stretch-proofing fireproof cable, includes sinle silk (8), first insulating layer (5), inner sheath (4), flame retardant coating (3) and oversheath (2) that from inside to outside set up, its characterized in that: still be provided with in the first insulating layer (5) and strengthen core (6) and supporting component (7), the one end of supporting component (7) is connected strengthen core (6), the other end is connected first insulating layer (5), flame retardant coating (3) are including carbon fiber layer (301) and ceramic fiber layer (302) that set up from inside to outside.

2. A stretch-proof fire-resistant electrical cable according to claim 1, wherein: the support assembly (7) comprises a support rod (702) and fixing blocks (701) arranged at two ends of the support rod (702), and the fixing blocks (701) are respectively connected with the reinforcing core (6) and the first insulating layer (5).

3. A stretch-proof fire-resistant electrical cable according to claim 2, wherein: the supporting rods (702) and the fixing blocks (701) are made of carbon fibers.

4. A stretch-proof fire-resistant electrical cable according to claim 1, wherein: the supporting components (7) are uniformly arranged along the extending direction of the wire cores (8).

5. A stretch-proof fire-resistant electrical cable according to claim 1, wherein: the wire core (8) comprises a conductor (801) arranged inside and a conductor insulating layer (802) wrapping the conductor (801).

6. A stretch-proof fire-resistant electrical cable according to claim 1, wherein: the data transmission line (9) is further arranged in the insulating layer (5), and a data line insulating layer (901) is arranged outside the data transmission line (9).

7. A stretch-proof fire-resistant electrical cable according to claim 6, wherein: a first shielding layer (902) is arranged outside the data line insulating layer (901).

8. A stretch-proof fire-resistant electrical cable according to claim 7, wherein: the outer sheath (2) comprises a second shielding layer (201) and a second insulating layer (202) which are arranged from inside to outside.

9. A stretch-proof fire-resistant electrical cable according to claim 8, wherein: the second shielding layer (201) is made of a material different from that of the first shielding layer (902).