CN221352414U - High-low temperature resistant composite signal cable - Google Patents
High-low temperature resistant composite signal cable Download PDFInfo
- Publication number
- CN221352414U CN221352414U CN202322724247.5U CN202322724247U CN221352414U CN 221352414 U CN221352414 U CN 221352414U CN 202322724247 U CN202322724247 U CN 202322724247U CN 221352414 U CN221352414 U CN 221352414U
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- Prior art keywords
- layer
- protective layer
- cable
- temperature resistant
- layers
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- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 108
- 239000011241 protective layer Substances 0.000 claims abstract description 44
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 28
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims abstract description 25
- 239000010425 asbestos Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 15
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000032683 aging Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a composite material high-temperature and low-temperature resistant signal cable which comprises a silica gel protective layer, wherein the lower layer of the silica gel protective layer is a crosslinked polyethylene rubber layer, the lower layers of the inner protective layer and the outer protective layer are filler layers, the lower layers of the filler layers are isolation layers, the lower layers of the isolation layers are asbestos screen layers, an optical fiber protective layer is arranged below the asbestos screen layers, and the optical fiber protective layer protects an optical fiber. The cable protective layer is made of the crosslinked polyethylene rubber material, so that the cable protective layer can bear higher working temperature, has higher insulation resistance and dielectric strength, and can stably work under high voltage conditions; by using the moisture absorbent as the filler, the moisture accumulation and damage to the cable are prevented, the risks of insulation aging and damage are reduced, and the service life of the cable is prolonged; by using the high temperature resistant material (polyphenylene sulfide), the high temperature resistant material can bear higher working temperature, has higher high temperature resistant performance, and can run for a long time in a high temperature environment without being influenced.
Description
Technical Field
The utility model relates to the field of cables, in particular to a composite material high-temperature and low-temperature resistant signal cable.
Background
The high-temperature and low-temperature resistant signal cable is a cable capable of normally transmitting signals in an extreme temperature environment, and is mainly used in the application field requiring signal transmission at high temperature or low temperature. The existing high-temperature and low-temperature resistant signal cable (publication number: CN 208673786U) for a composite material has at least the following disadvantages:
1. The existing cable has poor corrosion resistance, can increase contact resistance, lead to reduced signal transmission quality, can cause fire or fault, can increase the resistance of the cable, lead to reduced power transmission efficiency, can generate heat and energy loss, and shortens the service life of the cable, so that a cable using a corrosion-resistant material (crosslinked polyethylene rubber) is highly needed.
2. The existing cable is poor in moisture resistance, moisture possibly permeates an insulating layer and causes insulation performance to be reduced, the risk of breakdown faults of the cable is increased, transmission efficiency, signal quality and stability of the cable are affected, connection reliability of the cable is reduced, potential safety hazards such as short circuit and the like are even caused, maintenance cost and inconvenience are increased, and therefore a cable using a moisture absorbent as a filler is urgently needed.
3. The existing cable is poor in high temperature resistance, so that the insulating layer loses the original insulating property, the electric leakage and short circuit risks of the cable are increased, fire or faults can be caused when the cable is serious, more frequent maintenance and replacement of the cable can be caused, the maintenance cost and inconvenience are increased, heat and energy loss can be caused, and the signal transmission quality is influenced, so that a cable using high temperature resistant material (polyphenylene sulfide) as an optical fiber protective layer is urgently needed.
Disclosure of utility model
The utility model mainly aims to provide a high-temperature and low-temperature resistant composite signal cable which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a high, low temperature resistant signal cable of combined material, includes silica gel protective layer, its characterized in that: the silica gel protective layer is characterized in that the lower layer of the silica gel protective layer is a crosslinked polyethylene rubber layer, an inner protective layer and an outer protective layer are arranged below the crosslinked polyethylene rubber layer, the inner protective layer and the outer protective layer isolate the crosslinked polyethylene protective layer from a filler layer, the lower layer of the filler layer is an isolation layer, the lower layer of the isolation layer is an asbestos screen layer, the lower layer of the asbestos screen layer is an optical fiber protective layer, and the optical fiber protective layer protects an optical fiber.
Preferably, the next layer of the silica gel protective layer is a crosslinked polyethylene rubber layer, and the material used for the crosslinked polyethylene rubber layer is crosslinked polyethylene rubber.
Preferably, the lower layer of the crosslinked polyethylene rubber layer is an inner and outer protective layer.
Preferably, the lower layers of the inner and outer protective layers are filler layers, and the filler used in the filler layers is a moisture absorbent.
Preferably, the lower layer of the filler layer is an isolation layer, the lower layer of the isolation layer is an asbestos screen layer, the lower layer of the asbestos screen layer is an optical fiber protection layer, and the optical fiber protection layer is made of polyphenylene sulfide (PES).
Preferably, the optical fiber protection layer protects the optical fiber.
Compared with the prior art, the utility model has the following beneficial effects:
1. The cable protective layer is made of the crosslinked polyethylene rubber material, can bear higher working temperature, has higher insulation resistance and dielectric strength, and can stably work under high voltage conditions.
2. By using the moisture absorbent as a filler, moisture accumulation and damage to the cable are prevented, the risk of insulation aging and damage is reduced, and the service life of the cable is prolonged.
3. By using the high temperature resistant material (polyphenylene sulfide), the high temperature resistant material can bear higher working temperature, has higher high temperature resistant performance, and can run for a long time in a high temperature environment without being influenced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
in the figure: 1. a silica gel protective layer; 2. a crosslinked polyethylene rubber layer; 3. an inner and outer protective layer; 4. a filler layer; 5. an isolation layer; 6. an asbestos web layer; 7. an optical fiber protective layer; 8. an optical fiber.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1, the present utility model provides a technical solution:
The utility model provides a high, low temperature resistant signal cable of combined material, includes silica gel protective layer 1, its characterized in that: the silica gel protective layer 1 next layer is crosslinked polyethylene rubber layer 2, be inside and outside protective layer 3 under crosslinked polyethylene rubber layer 2, inside and outside protective layer 3 has isolated crosslinked polyethylene rubber layer 2 and filler layer 4, the next layer of filler layer 4 is isolation layer 5, isolation layer 5 next layer is asbestos stratum reticulare 6, asbestos stratum reticulare 6 next layer is optic fibre protective layer 7, optic fibre protective layer 7 is protecting optic fibre 8.
In this embodiment, the next layer of the silica gel protective layer 1 is a crosslinked polyethylene rubber layer 2, the crosslinked polyethylene rubber layer 2 is made of crosslinked polyethylene rubber, and the next layer of the crosslinked polyethylene rubber layer 2 is an inner and outer protective layer 3. The XLPE rubber has higher insulation resistance and dielectric strength, can bear higher electric field strength, has low dielectric loss and low dielectric constant, is beneficial to reducing energy loss in a cable line and improving power transmission efficiency; the cable can work for a long time in a high-temperature environment without failure, the melting point of the cable is generally above 120 ℃, the cable can bear higher temperature, and the cable is very important for the condition that the cable needs to work in the high-temperature environment; the cable has high mechanical strength and toughness, can resist external physical force and cope with deformation such as stretching and pressure in daily use, has tensile strength of 10 to 20 megapascals (MPa), has good wear resistance, and can protect conductors and insulating layers of the cable under various conditions.
In this embodiment, the lower layer of the inner and outer protective layers 3 is a filler layer 4, and the filler used in the filler layer 4 is a moisture absorbent. The moisture removing agent can absorb moisture and humidity in the cable, reduce the humidity in the cable, has the moisture absorption rate of usually between milligrams per cubic centimeter per hour, has the moisture absorption capacity of usually between 10 and 30 percent, and is beneficial to preventing the interaction of the moisture and conductors or insulating materials in the cable and reducing the risk of insulation aging and damage of the cable; the cable insulation performance can be improved by keeping the inside of the cable dry, and the cable is filled with the dehumidifying agent, so that the influence of a humid environment on the cable insulation performance can be reduced, and the service life and the stability of the cable are improved; the use of the dehumidifying agent can reduce attenuation and interference in signal transmission in the cable, humidity can influence the signal transmission, and the use of the dehumidifying agent can maintain stable environment inside the cable and ensure the transmission quality and stability of the signal.
In this embodiment, the lower layer of the filler layer 4 is an isolation layer 5, the lower layer of the isolation layer 5 is an asbestos screen layer 6, the lower layer of the asbestos screen layer 6 is an optical fiber protection layer 7, the optical fiber protection layer 7 is made of polyphenylene sulfide, and the optical fiber protection layer 7 protects the optical fiber 8. Polyphenylene sulfide can have excellent high temperature resistance and can still keep stable performance under a long-time high-temperature environment, for example, the polyphenylene sulfide can resist the temperature of up to 200 ℃ and ensure the reliable operation of the optical fiber under the high-temperature environment; the polyphenylene sulfide has good stability and corrosion resistance to various chemical substances, is not easy to be corroded by acid, alkali, solvent and other chemical substances, and protects the optical fiber from being damaged by external chemical environment; the lower refractive index of the polyphenylene sulfide is beneficial to reducing the transmission loss of the optical signal on the optical fiber protection layer, for example, the refractive index of the polyphenylene sulfide is about 1.53, so that the optical fiber transmission efficiency can be improved, and the signal attenuation can be reduced.
The cable protection layer is made of the crosslinked polyethylene rubber material, can bear higher working temperature, has higher insulation resistance and dielectric strength, and can stably work under the high-voltage condition; by using the moisture absorbent as the filler, the moisture accumulation and damage to the cable are prevented, the risks of insulation aging and damage are reduced, and the service life of the cable is prolonged; by using the high temperature resistant material (polyphenylene sulfide), the high temperature resistant material can bear higher working temperature, has higher high temperature resistant performance, and can run for a long time in a high temperature environment without being influenced.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a high, low temperature resistant signal cable of combined material, includes silica gel protective layer (1), its characterized in that: the silica gel protective layer (1) next floor is crosslinked polyethylene rubber layer (2), crosslinked polyethylene rubber layer (2) are inside and outside protective layer (3) down, inside and outside protective layer (3) have isolated crosslinked polyethylene rubber layer (2) and filler layer (4), the next floor of filler layer (4) is isolation layer (5), isolation layer (5) next floor is asbestos net layer (6), asbestos net layer (6) next floor is optical fiber protective layer (7), optical fiber protective layer (7) are protecting optic fibre (8).
2. The composite high and low temperature resistant signal cable of claim 1, wherein: the next layer of the silica gel protective layer (1) is a crosslinked polyethylene rubber layer (2), and the crosslinked polyethylene rubber layer (2) is made of crosslinked polyethylene rubber.
3. The composite high and low temperature resistant signal cable of claim 2, wherein: the lower layer of the crosslinked polyethylene rubber layer (2) is an inner and outer protective layer (3).
4. A composite high and low temperature resistant signal cable according to claim 3, wherein: the lower layer of the inner and outer protective layers (3) is a filler layer (4), and the filler used by the filler layer (4) is a moisture absorbent.
5. The composite high and low temperature resistant signal cable of claim 4, wherein: the lower layer of the filler layer (4) is an isolation layer (5), the lower layer of the isolation layer (5) is an asbestos net layer (6), the lower layer of the asbestos net layer (6) is an optical fiber protection layer (7), and the optical fiber protection layer (7) is made of polyphenylene sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724247.5U CN221352414U (en) | 2023-10-11 | 2023-10-11 | High-low temperature resistant composite signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724247.5U CN221352414U (en) | 2023-10-11 | 2023-10-11 | High-low temperature resistant composite signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221352414U true CN221352414U (en) | 2024-07-16 |
Family
ID=91840087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322724247.5U Active CN221352414U (en) | 2023-10-11 | 2023-10-11 | High-low temperature resistant composite signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221352414U (en) |
-
2023
- 2023-10-11 CN CN202322724247.5U patent/CN221352414U/en active Active
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