CN218896497U - Flexible flexible cable - Google Patents
Flexible flexible cable Download PDFInfo
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- CN218896497U CN218896497U CN202222826976.7U CN202222826976U CN218896497U CN 218896497 U CN218896497 U CN 218896497U CN 202222826976 U CN202222826976 U CN 202222826976U CN 218896497 U CN218896497 U CN 218896497U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a flexible cable, which relates to the technical field of power transmission cables, and comprises at least one conductor unit and a shielding layer which is wrapped on the outer side of the conductor unit, wherein the shielding layer is used for shielding electromagnetic interference of the external environment to the flexible cable, and the conductor unit comprises: a conductor core; the fireproof layer is formed by spirally wrapping a fireproof belt on the outer side of the conductor core; the insulating layer is wrapped on the outer side of the fireproof layer, the shielding layer is wrapped on the outer side of the insulating layer, wherein, the fire-proof belt is formed by compositely pressing a mica layer and a high-temperature-resistant glass fiber layer, and the surface of the fire-proof belt is coated with a protective layer made of a ceramic silicone rubber material. The flexible cable has good fire resistance and high temperature resistance, and can maintain good structural flexibility and transmission stability in a flame environment.
Description
Technical Field
The utility model relates to the technical field of power transmission cables, in particular to a flexible soft cable.
Background
In order to meet the power transmission requirement in a high-temperature environment, the cable needs to have good fire-resistant and high-temperature-resistant performances, however, the flame environment of the current fireproof and high-temperature-resistant cable is short in working time, short circuits and other dangerous conditions are easy to occur when the cable is used for a long time, in addition, the structure of the current fireproof and high-temperature-resistant cable is complex, the product hardness is high, the cable is not easy to bend, and therefore the cable does not have practical application value, and meanwhile, the insulation resistance of the cable cannot meet practical requirements at high temperature.
Disclosure of Invention
The utility model aims to provide a flexible soft cable which has good fire resistance and high temperature resistance and can keep good structural flexibility and transmission stability in a flame environment.
The above object of the present utility model can be achieved by the following technical solutions:
the utility model provides a flexible cable, which comprises at least one conductor unit and a shielding layer, wherein the shielding layer is wrapped on the outer side of the conductor unit and is used for shielding electromagnetic interference of the external environment to the flexible cable, and the conductor unit comprises:
a conductor core;
the fireproof layer is formed by spirally wrapping a fireproof belt on the outer side of the conductor core;
the insulating layer is wrapped on the outer side of the fireproof layer, and the shielding layer is wrapped on the outer side of the insulating layer;
the fireproof belt is formed by compositely pressing a mica layer and a high-temperature-resistant glass fiber layer, and the surface of the fireproof belt is coated with a protective layer made of a ceramic silicone rubber material.
In a preferred embodiment, the flexible cable includes four conductor units and a temperature-resistant layer wrapped on the outer sides of the four conductor units, the shielding layer is wrapped on the outer sides of the temperature-resistant layer, and the temperature-resistant layer is used for isolating heat of external environment.
In a preferred embodiment, the four conductor units respectively form a first conductor unit, a second conductor unit, a third conductor unit and a fourth conductor unit according to the positions of the four conductor units in the temperature resistant layer; the first conductor unit and the second conductor unit are arranged in a propping mode in the radial direction, a first contact line is formed, the first conductor unit and the third conductor unit are arranged in a propping mode in the radial direction, a second contact line is formed, an included angle between the first contact line and the second contact line relative to the axis of the first conductor unit is 90 degrees, the fourth conductor unit and the second conductor unit are arranged in a propping mode in the radial direction, a third contact line is formed, the fourth conductor unit and the third conductor unit are arranged in a propping mode in the radial direction, a fourth contact line is formed, and an included angle between the third contact line and the fourth contact line relative to the axis of the fourth conductor unit is 90 degrees.
In a preferred embodiment, the conductor core is formed by helically twisting a plurality of wires, the cross-sectional shape of the wires is circular, and the wires are made of nickel-plated copper material or nickel-copper alloy material.
In a preferred embodiment, the content of nickel in the wire is 30% or more in a state where the wire is made of a nickel-copper alloy material.
In a preferred embodiment, the insulating layer is wrapped on the outer side of the fireproof layer in an extrusion molding mode.
In a preferred embodiment, the insulating layer is made of a ceramic polyolefin material or a ceramic silicone rubber material.
In a preferred embodiment, the shielding layer is formed by braiding a plurality of shielding wires on the outer side of the temperature resistant layer.
In a preferred embodiment, the shielding wires are made of carbon fiber material, carbon nanotube material, or metal composite conductive fiber material.
The utility model has the characteristics and advantages that:
according to the flexible cable, the high-oxidation-resistance nickel-plated copper or nickel-copper alloy material is adopted to manufacture the wire, so that the conductor core of the conductor unit is not discolored or oxidized at the high temperature of more than 500 ℃ and the good current carrying capacity is maintained; the mica layer and the high-temperature resistant glass fiber layer are compositely pressed, and the fireproof layer formed by the ceramic silicon rubber coating is coated, so that the working time of the conductor core at the high temperature of more than 500 ℃ can be effectively prolonged, the conductor cores among different conductor units are ensured to be isolated from each other, and dangerous situations such as short circuit and the like can not occur; the insulating layer which is arranged outside the fireproof layer can form a hard ceramic supporting armor shell when ablated in a flame environment, has good functions of fire insulation, heat insulation and heat insulation, and can pass a fire resistance test for more than 3 hours at a high temperature of 950-1000 ℃ to meet the standard requirement of a B1-level fire resistance test; the shielding layer is made of carbon fiber materials, carbon nanotube materials or metal composite conductive fiber materials, so that the good low weight and flexibility of the shielding layer can be ensured while the fire resistance of the shielding layer is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing a structure of a conductor unit of a flexible cable of the present utility model.
Fig. 2 is a schematic structural view showing an embodiment of the flexible soft cable of the present utility model.
Fig. 3 is a schematic view showing the structure of another embodiment of the flexible soft cable of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 and 2, an embodiment of the present utility model provides a flexible cable, the flexible cable includes at least one conductor unit 10, and a shielding layer 4 wrapped on an outer side of the conductor unit 10, the shielding layer 4 is used for shielding electromagnetic interference of an external environment to the flexible cable, and the conductor unit 10 includes: a conductor core 1; the fireproof layer 2 is formed by spirally wrapping the fireproof belt on the outer side of the conductor core 1; insulating layer 3, insulating layer 3 package is in the outside of flame retardant coating 2, and shielding layer 4 package is in the outside of insulating layer 3. The fireproof belt is formed by compositely pressing a mica layer and a high-temperature-resistant glass fiber layer, and the surface of the fireproof belt is coated with a protective layer made of a ceramic silicone rubber material.
In order to further explain the flexible cable according to the embodiment of the present utility model, the following further describes the connection relationship, the size limitation, and the like, wherein:
referring to fig. 3, in a preferred embodiment, the flexible cable includes four conductor units 10 and a temperature-resistant layer 5 wrapped around the outer sides of the four conductor units 10, wherein the shielding layer 4 is wrapped around the outer sides of the temperature-resistant layer 5, and the temperature-resistant layer 5 is used for isolating heat of the external environment.
In a preferred embodiment, four conductor units 10 form a first conductor unit 11, a second conductor unit 12, a third conductor unit 13, and a fourth conductor unit 14, respectively, at positions inside the temperature resistant layer 5; the first conductor unit 11 and the second conductor unit 12 are disposed against each other in a radial direction and form a first contact line 21, the first conductor unit 11 and the third conductor unit 13 are disposed against each other in the radial direction and form a second contact line 22, an included angle between the first contact line 21 and the second contact line 22 with respect to an axis of the first conductor unit 11 is 90 degrees, the fourth conductor unit 14 and the second conductor unit 12 are disposed against each other in the radial direction and form a third contact line 23, the fourth conductor unit 14 and the third conductor unit 13 are disposed against each other in the radial direction and form a fourth contact line 24, and an included angle between the third contact line 23 and the fourth contact line 24 with respect to an axis of the fourth conductor unit 14 is 90 degrees.
In a preferred embodiment, the conductor core 1 is formed by helically twisting a plurality of wires, the cross-sectional shape of the wires is circular, the wires are made of nickel-plated copper material or nickel-copper alloy material, and the content of nickel in the wires is 30% or more in a state in which the wires are made of nickel-copper alloy material.
In a preferred embodiment, the insulating layer 3 is wrapped on the outer side of the fireproof layer 2 by extrusion molding, and the insulating layer 3 is made of ceramic polyolefin material or ceramic silicone rubber material.
In a preferred embodiment, the shielding layer 4 is formed by braiding a plurality of shielding wires on the outer side of the insulating layer 3, the shielding wires being made of carbon fiber material, carbon nanotube material, or metal composite conductive fiber material.
Based on the above structural description, the flexible cable of the embodiment of the utility model has the following beneficial effects:
1. the conductor wire is made of high-oxidation-resistance nickel-plated copper or nickel-copper alloy material, so that the conductor core 1 of the conductor unit 10 is not discolored or oxidized at the high temperature of more than 500 ℃ and keeps good current carrying capacity;
2. the fireproof layer 2 formed by compositely pressing the mica layer and the high-temperature-resistant glass fiber layer and coating the ceramic silicon rubber coating can effectively improve the working time of the conductor core 1 at the high temperature of more than 500 ℃ and ensure that the conductor cores 1 among different conductor units 10 are isolated from each other and the dangerous situations such as short circuit and the like can not occur;
3. the insulating layer 3 which is arranged outside the fireproof layer 2 can form a hard ceramic supporting armor shell when ablated in a flame environment, has good functions of fire insulation, heat insulation and heat insulation, and can pass a fire resistance test for more than 3 hours at a high temperature of 950-1000 ℃ to meet the standard requirement of a B1-level fire resistance test;
4. the shielding layer 4 is made of carbon fiber material, carbon nanotube material or metal composite conductive fiber material, so that the good low weight and flexibility of the shielding layer 4 can be ensured while the fire resistance of the shielding layer is ensured.
The embodiment of the utility model provides a flexible soft cable which can be manufactured by the following processes: helically twisting a plurality of wire filaments to form the conductor core 1 of the conductor unit 10; spirally wrapping the fire-resistant tape around the outside of the conductor core 1 to form the fire-resistant layer 2 of the conductor unit 10; wrapping an insulating material on the outer side of the fireproof layer 2 by extrusion molding to form an insulating layer 3 of the conductor unit 10; wherein, the wire is made of nickel-plated copper material or nickel-copper alloy material, and the content of nickel in the wire is more than or equal to 30%; the fireproof belt is formed by compositely pressing a mica layer and a high-temperature-resistant glass fiber layer, and the surface of the fireproof belt is coated with a protective layer made of a ceramic silicone rubber material; the insulating material forming the insulating layer 3 is a ceramic polyolefin material or a ceramic silicone rubber material. After the insulating material is wrapped on the outer side of the fireproof layer 2 by extrusion molding to form the insulating layer 3, the method further comprises the following steps: braiding a plurality of shielding wires outside the insulating layer 3 of the conductor unit 10 to form a shielding layer 4; wherein the shielding wire is made of carbon fiber material, carbon nanotube material or metal composite conductive fiber material. After the insulating material is wrapped on the outer side of the fireproof layer 2 by extrusion molding to form the insulating layer 3, the method further comprises the following steps: adjusting the relative positions of the four conductor units 10 to form a first conductor unit 11, a second conductor unit 12, a third conductor unit 13 and a fourth conductor unit 14, enabling the first conductor unit 11 to be abutted against the second conductor unit 12 in the radial direction, forming a first contact line 21, enabling the first conductor unit 11 to be abutted against the third conductor unit 13 in the radial direction, forming a second contact line 22, enabling an included angle between the first contact line 21 and the second contact line 22 relative to the axis of the first conductor unit 11 to be 90 degrees, enabling the fourth conductor unit 14 to be abutted against the second conductor unit 12 in the radial direction, forming a third contact line 23, enabling the fourth conductor unit 14 to be abutted against the third conductor unit 13 in the radial direction, and forming a fourth contact line 24, enabling an included angle between the third contact line 23 and the fourth contact line 24 relative to the axis of the fourth conductor unit 14 to be 90 degrees; helically twisting the four conductor units 10; the outer sides of the four conductor units 10 are wrapped with a temperature resistant layer 5; braiding a plurality of shielding wires on the outer side of the temperature resistant layer 5 to form a shielding layer 4; wherein the shielding wire is made of carbon fiber material, carbon nanotube material or metal composite conductive fiber material.
The foregoing is merely exemplary embodiments of the present utility model and those skilled in the art may make various modifications and alterations to the embodiments of the present utility model based on the disclosure herein without departing from the spirit and scope of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. A flexible cable, characterized in that the flexible cable includes at least one conductor unit, and a shielding layer that wraps around the outside of the conductor unit, the shielding layer is used for shielding the electromagnetic interference of external environment to the flexible cable, the conductor unit includes:
a conductor core;
the fireproof layer is formed by spirally wrapping a fireproof belt on the outer side of the conductor core;
the insulating layer is wrapped on the outer side of the fireproof layer, and the shielding layer is wrapped on the outer side of the insulating layer;
the fireproof belt is formed by compositely pressing a mica layer and a high-temperature-resistant glass fiber layer, and the surface of the fireproof belt is coated with a protective layer made of a ceramic silicone rubber material.
2. The flexible cable according to claim 1, wherein the flexible cable comprises four conductor units and a temperature-resistant layer wrapped outside the four conductor units, the shielding layer is wrapped outside the temperature-resistant layer, and the temperature-resistant layer is used for isolating heat of an external environment.
3. The flexible cable according to claim 2, wherein four of the conductor units form a first conductor unit, a second conductor unit, a third conductor unit, and a fourth conductor unit, respectively, at positions each inside the temperature resistant layer; the first conductor unit and the second conductor unit are arranged in a propping mode in the radial direction, a first contact line is formed, the first conductor unit and the third conductor unit are arranged in a propping mode in the radial direction, a second contact line is formed, an included angle between the first contact line and the second contact line relative to the axis of the first conductor unit is 90 degrees, the fourth conductor unit and the second conductor unit are arranged in a propping mode in the radial direction, a third contact line is formed, the fourth conductor unit and the third conductor unit are arranged in a propping mode in the radial direction, a fourth contact line is formed, and an included angle between the third contact line and the fourth contact line relative to the axis of the fourth conductor unit is 90 degrees.
4. The flexible cable of claim 1, wherein the conductor core is formed by helically twisting a plurality of wires, the wires having a circular cross-sectional shape, the wires being made of a nickel-plated copper material or a nickel-copper alloy material.
5. The flexible cable of claim 1 wherein the insulating layer is wrapped around the outside of the flame retardant layer by extrusion.
6. The flexible cable of claim 5, wherein the insulating layer is made of a ceramic polyolefin material or a ceramic silicone rubber material.
7. The flexible cable of claim 2, wherein the shielding layer is formed by braiding a plurality of shielding wires outside the temperature resistant layer.
8. The flexible cable of claim 7, wherein the shielding wires are made of carbon fiber material, carbon nanotube material, or metal composite conductive fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222826976.7U CN218896497U (en) | 2022-10-26 | 2022-10-26 | Flexible flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222826976.7U CN218896497U (en) | 2022-10-26 | 2022-10-26 | Flexible flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218896497U true CN218896497U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222826976.7U Active CN218896497U (en) | 2022-10-26 | 2022-10-26 | Flexible flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218896497U (en) |
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2022
- 2022-10-26 CN CN202222826976.7U patent/CN218896497U/en active Active
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