High-temperature-resistant flexible composite cable

Abstract

The utility model relates to a high-temperature-resistant flexible composite cable, which comprises a flat outer sheath, three power lines are arranged at the middle part, the left part and the right part of the outer sheath at intervals, and two multi-core signal lines are arranged among the power lines at intervals. The multi-core signal line comprises a plurality of groups of signal line pairs, an isolation piece for isolating the signal line pairs, and a filling piece filled in the isolation piece, and the multi-core signal line is sequentially provided with a first protection layer, a shielding layer and a second protection layer from inside to outside. According to the scheme, the cross-shaped framework can rotate along with the change of the length, the positions of the four signal line pairs are kept, crosstalk between the line pairs can be reduced, meanwhile, the balance characteristic of the cable can be improved, the balance structure of the cable can not be damaged in the installation process, and the cables are prevented from being wound mutually. The outer sheath is made of a silicone rubber sheath material, and has good high temperature resistance, low temperature resistance and insulation performance, good mechanical performance, corrosion resistance and good low-temperature flexibility.

Description

Technical Field

[0001] The utility model relates to the field of cable production and processing, in particular to a high-temperature resistant flexible composite cable. Background Art

[0002] In the modern industrial field, with the rapid development of automation equipment and robot technology, the requirements for cables are also increasing. The existing wiring method is usually to lay a single network cable and a separate power cable separately. This method has many disadvantages:

[0003] (1) Laying and using several cables at the same time will increase the cost of use;

[0004] (2) Not only do you need to purchase multiple different types of cables, but you also need to lay them separately during the laying process, which increases manpower and material costs and reduces work efficiency;

[0005] (3) The wiring method is complicated, which brings great difficulty to the construction;

[0006] (4) There are also many challenges in subsequent maintenance and updates, such as the difficulty in quickly locating the fault point and the need to handle different types of cables separately when replacing cables.

[0007] In order to solve the above problems, this solution proposes a high temperature resistant flexible composite cable. Utility Model Content

[0008] The invention of this utility model aims to solve the problem that the existing wiring method has several cables laid at the same time, which increases the manpower and material costs, brings great difficulty to the construction, and faces many challenges in the later maintenance and update. The specific solution is as follows:

[0009] A high-temperature resistant flexible composite cable comprises a flat outer sheath, three power lines are arranged at intervals in the middle, left and right parts of the outer sheath, two multi-core signal lines are arranged at intervals between the power lines, the multi-core signal lines comprise a plurality of signal line pairs, isolating members for isolating the signal line pairs, and fillers filled in the isolating members, and the multi-core signal lines are provided with a first protective layer, a shielding layer and a second protective layer in sequence from the inside to the outside.

[0010] Furthermore, there are four signal line pairs, each of which includes a conductor and a first insulating layer disposed on the surface of the conductor, and the first insulating layer is a high temperature resistant PE insulating material.

[0011] Furthermore, the isolation member is a cross frame.

[0012] Furthermore, the separator is made of low-density polyethylene.

[0013] Furthermore, the filling piece is high temperature resistant cotton thread.

[0014] Furthermore, the first protective layer is high temperature resistant Mylar.

[0015] Furthermore, the shielding layer is a tinned copper wire braided wire with a braiding density of ≥80%.

[0016] Furthermore, the second protective layer is a TPU sheath.

[0017] Furthermore, the outer sheath is a silicone rubber sheath.

[0018] Furthermore, the power line includes a power line conductor and a second insulating layer arranged on the surface of the power line conductor, and the second insulating layer is silicone rubber.

[0019] In summary, the technical solution of the utility model has the following beneficial effects:

[0020] The conductors and power line conductors of this scheme are both made of Category VI tinned copper wire, which is twisted by multiple strands of tinned copper wire and has good bending characteristics. Tinned copper has good electrical conductivity, and the surface coating of tinned copper can prevent copper oxidation and improve its anti-corrosion performance. Tinned copper has good mechanical properties and can withstand various physical shocks and wear. The first insulation layer of the signal line pair of this scheme adopts high-temperature resistant PE insulation material, which can work under the actual needs of 260℃. This material usually has a series of special physical and chemical properties to ensure that its performance and reliability can be maintained under extreme conditions. The second insulation layer of the power line adopts silicone rubber, which can work under the actual needs of 250℃; it has good cold resistance and is suitable for use in low temperature environments; it is corrosion-resistant and suitable for use in corrosive environments such as acids and alkalis; it is wear-resistant and suitable for use in frequent bending, friction and other conditions. The outer sheath of this scheme adopts silicone rubber sheath material, which has good high temperature resistance, low temperature resistance and insulation performance, good mechanical properties, corrosion resistance and low temperature flexibility, ensuring the normal operation of the composite cable and extending the service life of the cable. The second protective layer of this solution is a TPU sheath, which has the advantages of load-bearing capacity, good impact resistance and outstanding shock absorption performance. It has high tensile strength and elongation at break, and can maintain good elasticity and toughness even at high hardness. It also has good oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility and tear resistance. The central cross skeleton of this solution will rotate with the change of length, maintaining the position of the four groups of signal line pairs, which is conducive to reducing crosstalk between line pairs. At the same time, it can improve the balance characteristics of the cable, and can prevent the balance structure of the cable from being destroyed during the installation process, preventing the cables from being entangled with each other. The filler of this solution uses high-temperature resistant cotton thread, which can increase the flexibility of the cable, making it less likely to break when bending and folding, thereby extending the service life of the cable. The high-temperature resistant cotton thread can also increase the mechanical strength of the cable, making it more able to withstand the impact of external pressure and tension. This solution reduces the manpower and material costs of laying cables, is convenient for construction, and is convenient for later maintenance and updating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for the description of the embodiment of the utility model. Obviously, the drawings described below are only part of the embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0022] Figure 1 This is a structural diagram of a high temperature resistant flexible composite cable of the utility model.

[0023] Description of Figure Numbers:

[0024] 10-outer sheath, 20-power line, 21-power line conductor, 22-second insulating layer, 30-multi-core signal line, 31-signal line pair, 311-conductor, 312-first insulating layer, 32-isolating member, 33-filling member, 34-first protective layer, 35-shielding layer, 36-second protective layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 As shown, a high temperature resistant flexible composite cable comprises a flat outer sheath 10, three power lines 20 are arranged at intervals in the middle, left and right parts of the outer sheath 10, two multi-core signal lines 30 are arranged at intervals between the power lines, the multi-core signal lines 30 comprise a plurality of signal line pairs 31, isolating members 32 for isolating the signal line pairs 31, and fillers 33 filled in the isolating members 32, and the multi-core signal lines 30 are provided with a first protective layer 34, a shielding layer 35, and a second protective layer 36 from the inside to the outside.

[0027] Specifically, there are four signal line pairs 31, and the signal line pairs 31 include a conductor 311 and a first insulating layer 312 disposed on the outer surface of the conductor 311. The first insulating layer 312 is made of high temperature resistant PE insulating material. PE is the abbreviation of polyethylene.

[0028] Specifically, the spacer 32 is a cross frame and is made of low-density polyethylene (LDPE).

[0029] Specifically, the filling member 33 is high temperature resistant cotton thread.

[0030] Specifically, the first protective layer 34 is a high temperature resistant Mylar. A layer of high temperature resistant Mylar is wrapped around the cable before braiding to effectively protect the wire core (i.e., the signal wire pair 31) from damage. The main purpose of wrapping the high temperature resistant Mylar is to provide an additional insulation and protective layer to enhance the performance and stability of the cable in a high temperature environment. It has chemical corrosion resistance and can effectively improve the service life and safety of the cable.

[0031] Specifically, the shielding layer 35 is a tinned copper wire braided wire with a braiding density of ≥80%. The high temperature resistant Mylar is made of tinned copper wire braided wire outside, mainly to prevent electrostatic interference, electromagnetic induction, crosstalk induction and interference caused by other signal lines in the energy storage system, to ensure the normal operation of the system transmission.

[0032] Specifically, the second protective layer 36 is a TPU sheath, TPU is the abbreviation of Thermoplastic Urethane, and its Chinese name is thermoplastic polyurethane elastomer. It has strong high tension and high pulling force, is a mature environmentally friendly material, and has obtained relevant certifications for international green environmentally friendly materials.

[0033] Specifically, the outer sheath 10 is a silicone rubber sheath.

[0034] Specifically, the power line 20 includes a power line conductor 21 and a second insulating layer 22 disposed on the outer surface of the power line conductor 21 , and the second insulating layer 22 is silicone rubber.

[0035] In summary, the technical solution of the utility model has the following beneficial effects:

[0036] The conductors and power line conductors of this scheme are both made of Category VI tinned copper wire, which is twisted by multiple strands of tinned copper wire and has good bending characteristics. Tinned copper has good electrical conductivity, and the surface coating of tinned copper can prevent copper oxidation and improve its anti-corrosion performance. Tinned copper has good mechanical properties and can withstand various physical shocks and wear. The first insulation layer of the signal line pair of this scheme adopts high-temperature resistant PE insulation material, which can work under the actual needs of 260℃. This material usually has a series of special physical and chemical properties to ensure that its performance and reliability can be maintained under extreme conditions. The second insulation layer of the power line adopts silicone rubber, which can work under the actual needs of 250℃; it has good cold resistance and is suitable for use in low temperature environments; it is corrosion-resistant and suitable for use in corrosive environments such as acids and alkalis; it is wear-resistant and suitable for use in frequent bending, friction and other conditions. The outer sheath of this scheme adopts silicone rubber sheath material, which has good high temperature resistance, low temperature resistance and insulation performance, good mechanical properties, corrosion resistance and low temperature flexibility, ensuring the normal operation of the composite cable and extending the service life of the cable. The second protective layer of this solution is a TPU sheath, which has the advantages of load-bearing capacity, good impact resistance and outstanding shock absorption performance. It has high tensile strength and elongation at break, and can maintain good elasticity and toughness even at high hardness. It also has good oil resistance, wear resistance, environmental resistance, weather resistance, corrosion resistance, low-temperature flexibility and tear resistance. The central cross skeleton of this solution will rotate with the change of length, maintaining the position of the four groups of signal line pairs, which is conducive to reducing crosstalk between line pairs. At the same time, it can improve the balance characteristics of the cable, and can prevent the balance structure of the cable from being destroyed during the installation process, preventing the cables from being entangled with each other. The filler of this solution uses high-temperature resistant cotton thread, which can increase the flexibility of the cable, making it less likely to break when bending and folding, thereby extending the service life of the cable. The high-temperature resistant cotton thread can also increase the mechanical strength of the cable, making it more able to withstand the impact of external pressure and tension. This solution reduces the manpower and material costs of laying cables, is convenient for construction, and is convenient for later maintenance and updating.

[0037] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.

Claims

1. A high temperature resistant flexible composite cable, characterized in that: It comprises a flat outer sheath, three power lines are arranged at intervals in the middle, left and right parts of the outer sheath, two multi-core signal lines are arranged at intervals between the power lines, the multi-core signal lines comprise a plurality of signal line pairs, isolating members isolating the signal line pairs, and filling members filled in the isolating members, and the multi-core signal lines are provided with a first protective layer, a shielding layer and a second protective layer in sequence from the inside to the outside.

2. A high temperature resistant flexible composite cable according to claim 1, characterized in that: There are four groups of signal line pairs, each of which includes a conductor and a first insulating layer arranged on the surface of the conductor, and the first insulating layer is a high-temperature resistant PE insulating material.

3. A high temperature resistant flexible composite cable according to claim 2, characterized in that: The isolating member is a cross frame.

4. A high temperature resistant flexible composite cable according to claim 3, characterized in that: The separator is low-density polyethylene.

5. A high temperature resistant flexible composite cable according to claim 4, characterized in that: The filling piece is high temperature resistant cotton thread.

6. A high temperature resistant flexible composite cable according to claim 5, characterized in that: The first protective layer is high temperature resistant Mylar.

7. A high temperature resistant flexible composite cable according to claim 6, characterized in that: The shielding layer is a tinned copper wire braided wire with a braiding density of ≥80%.

8. A high temperature resistant flexible composite cable according to claim 7, characterized in that: The second protective layer is a TPU sheath.

9. A high temperature resistant flexible composite cable according to claim 8, characterized in that: The outer sheath is a silicone rubber sheath.

10. A high temperature resistant flexible composite cable according to claim 9, characterized in that: The power line comprises a power line conductor and a second insulating layer arranged on the surface of the power line conductor, and the second insulating layer is silicone rubber.

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