Tensile shielding flat structure cable

Abstract

The utility model provides a tensile shielding flat structure cable, which comprises a wire core, an insulating layer wrapping the periphery of the wire core, and a tensile layer group wrapping the periphery of the insulating layer, the cross section of the wire core is runway-shaped, the shape of the insulating layer and the shape of the cross section of the tensile layer group are matched with the shape of the cross section of the wire core, the wire core comprises a conductor, and the conductor is connected with the insulating layer and the tensile layer group. By arranging the reinforcing support keels on the side parts of the conductors, the use requirements of users can be effectively met when the cable is applied in some special environments, such as extreme conditions of a strong magnetic field, high-frequency vibration and the like, the mechanical strength and the anti-aging performance of the cable can be effectively improved, and the service life of the cable can be prolonged. Under the extreme use conditions of a strong magnetic field, high-frequency vibration and the like, long service life can still be kept, and the device has the advantages of being good in use experience, low in implementation cost, simple in structure, convenient to produce in quantity and convenient to popularize and implement.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable production, and particularly relates to a tensile-resistant shielding flat-structure cable. BACKGROUND

[0002] In the prior art, with the continuous progress of science and technology and the in-depth development of scientific research fields, the demand for power transmission and signal communication equipment is also increasing, especially in some special environments, such as strong magnetic fields, high-frequency vibrations and other extreme conditions. Ordinary cables have been difficult to meet the use requirements, and the existing ordinary cables are not only easy to be damaged under these conditions, but also may affect the normal work of related equipment and the reliability of data transmission, which brings trouble to scientific research and production work. This is mainly because ordinary cables lack sufficient tensile strength, yield resistance and electromagnetic shielding performance.

[0003] In the prior art, special materials such as metal shielding cables or composite material cables are usually used to enhance the mechanical strength and electromagnetic shielding effectiveness of the cable to adapt to more harsh working environments. In addition, some high-tech solutions also use modified plastic to make the insulation layer and the armor layer to improve the durability and anti-interference performance of the cable. These improvements have solved some specific problems faced by ordinary cables to some extent, but it is still difficult to effectively cope with all special operating conditions in the full range, especially in high-strength magnetic fields and high-frequency vibration environments. The existing ordinary cable size specifications are usually circular, and are more prone to aging in high-strength magnetic fields and high-frequency vibration use scenarios. Therefore, improvements are urgently needed. CONTENT OF THE UTILITY MODEL

[0004] The application is proposed to solve the technical problem in the prior art that the cross-sectional size specifications of ordinary cables are usually circular, and the existing ordinary cables cannot meet the use requirements in some special environments, such as strong magnetic fields, high-frequency vibrations and other extreme conditions. High-frequency vibrations and strong magnetic fields will quickly reduce the mechanical strength of the cable, the cable will age quickly, and the service life of the cable is low. A tensile-resistant shielding flat-structure cable is proposed.

[0005] The application adopts the following scheme. A tensile-resistant shielding flat-structure cable includes a core, an insulation layer wrapped around the outer periphery of the core, and a tensile-resistant reinforcing layer group wrapped around the outer periphery of the insulation layer. The cross-sectional shape of the core is a racetrack type. The cross-sectional shape of the insulation layer and the tensile-resistant reinforcing layer group matches the shape of the cross-section of the core. The core includes a conductor and a reinforcing support keel arranged on the side of the conductor.

[0006] In one embodiment, the conductor is twisted by a plurality of conductor single wires, and the cross-sectional shape of the conductor is rectangular.

[0007] In one of the embodiments, the material of the conductor single wire is the sixth soft copper.

[0008] In one of the embodiments, the reinforcing support keel is symmetrically arranged on both sides of the conductor along the conductor center line.

[0009] In one of the embodiments, the reinforcing support keel comprises a vertical part and an arc-shaped part arranged on the vertical part, and the material of the reinforcing support keel is any one of glass fiber, carbon fiber or nylon.

[0010] In one of the embodiments, a spacing H is arranged between the conductor and the reinforcing support keel, and the spacing H satisfies the following condition: 0.1 cm≤H≤0.8 cm.

[0011] In one of the embodiments, the material of the insulation layer is cross-linked polyethylene.

[0012] In one of the embodiments, the tensile resistance layer group comprises a tensile resistance layer wrapped on the outer periphery of the insulation layer, a shielding layer wrapped on the outer periphery of the tensile resistance layer, and a sheath layer wrapped on the outer periphery of the shielding layer, and the thickness of the sheath layer is greater than the thickness of the shielding layer.

[0013] In one of the embodiments, the material of the tensile resistance layer is aramid fiber, the material of the shielding layer is a tinned copper wire woven mesh, and the material of the sheath layer is PVC.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The present application provides a tensile resistance shielding flat structure cable, which comprises a core, an insulation layer wrapped on the outer periphery of the core, and a tensile resistance layer group wrapped on the outer periphery of the insulation layer, wherein the cross-sectional shape of the core is a runway type, the insulation layer and the tensile resistance layer group match the shape of the cross-section of the core, the core comprises a conductor and a reinforcing support keel arranged on the side of the conductor, by arranging the reinforcing support keel on the side of the conductor, the application in some special environments, such as strong magnetic field, high frequency vibration and other extreme conditions, can effectively meet the use demand of the user, can effectively improve the mechanical strength and anti-aging performance of the cable, and can still maintain a long service life under the extreme use conditions of strong magnetic field, high frequency vibration and the like, has the advantages of good use experience, low implementation cost, simple structure, easy mass production and easy popularization and implementation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a cross-sectional structure schematic diagram of a novel wear-resistant and pressure-resistant drag chain cable of the present application;

[0017] Figure 2 is a partial enlarged view of A in the present application Figure 1 . DETAILED DESCRIPTION

[0018] In combination Figures 1-2 In combination, further illustrate the technical solutions provided by the present application, a kind of tensile shielding flat structure cable, including core 1, the insulating layer 2 of the outer periphery of the core 1 is covered, and the tensile reinforcing layer group 3 on the outer periphery of the insulating layer 2 is covered, the cross-sectional shape of the core 1 is track type, the cross-sectional shape of the insulating layer 2 and the tensile reinforcing layer group 3 matches the shape of the cross section of the core 1, the core 1 includes conductor 10, and the reinforcing support keel 11 on the side of the conductor 10 is arranged.

[0019] The present application provides a kind of tensile shielding flat structure cable, which includes core, insulating layer covered on the outer periphery of the core, and tensile layer group covered on the outer periphery of the insulating layer, wherein the cross-sectional shape of the core is track type, the cross-sectional shape of the insulating layer and the tensile layer group matches the shape of the cross section of the core, the core includes conductor, and reinforcing support keel is arranged on the side of the conductor, by setting reinforcing support keel on the side of the conductor, in some special environment, such as strong magnetic field, high frequency vibration and other extreme conditions, the use demand of user can be effectively met, the mechanical strength and anti-aging performance of cable can be effectively improved, under strong magnetic field, high frequency vibration and other extreme use conditions, still can maintain longer service life, with good use experience, low implementation cost, simple structure, easy to mass production, easy to implement and promote the advantages.

[0020] In the implementation process of the embodiment, the conductor 10 is twisted by a plurality of conductor single wires 100, and the cross-sectional shape of the conductor 10 is rectangular.

[0021] In the implementation process of the embodiment, the material of the conductor single wire 100 is the sixth soft copper.

[0022] In actual implementation process, the sixth soft copper has the following advantages: first, the soft copper conductor has excellent electrical conductivity and low resistivity, which enables it to maintain stable resistance value in high current density environment, thereby improving the efficiency of electrical system, in addition, the softness and flexibility of soft copper conductor make it more flexible during installation and use, and can adapt to various complex installation environments. Soft copper conductor also has good mechanical properties, can withstand certain external force and bending, but is not easy to be pulled apart.

[0023] In the implementation process of the embodiment, the reinforcing support keel 11 is symmetrically arranged on both sides of the conductor 10 along the center line of the conductor 10.

[0024] In the implementation process of the embodiment, the reinforcing support keel 11 includes a vertical part 110 and an arc-shaped part 111 arranged on the vertical part 110, and the reinforcing support keel 11 is made of any one of glass fiber, carbon fiber or nylon.

[0025] In the implementation process of the embodiment, a spacing H is arranged between the conductor 10 and the reinforcing support keel 11, and the spacing H satisfies the following condition: 0.1 cm≤H≤0.8 cm.

[0026] In the actual implementation process, H=0.5 cm. By arranging the reinforcing support keel, the following advantages are achieved: the vibration generated by the water-cooled magnet during high-field operation causes reciprocating bending of the cable connection, so the cable needs to have high yield strength. The support keel ensures the supportability of the cable, can withstand external transverse yield stress and longitudinal shear force of the cable, and makes the cable obtain high yield strength and resistance to reciprocating bending.

[0027] In the implementation process of the embodiment, the insulating layer 2 is made of cross-linked polyethylene.

[0028] In the actual implementation process, cross-linked polyethylene is used, and the advantages are as follows:

[0029] First, cross-linked polyethylene has excellent heat resistance. Its long-term working temperature can reach 90℃, and even in some cases, it can reach 125℃ and 150℃. The short-term bearing temperature can reach 250℃. This high heat resistance enables XLPE to maintain stable performance in high-temperature environments;

[0030] Second, the hardness, rigidity and wear resistance of cross-linked polyethylene are better than those of ordinary polyethylene, which makes XLPE cables more resistant to damage during installation and transportation. In addition, the impact resistance and stress cracking resistance of XLPE have also been significantly improved;

[0031] Third, XLPE retains the good insulation properties of PE, and the insulation resistance is further increased, making it perform well in power cables;

[0032] Fourth, the combustion products of cross-linked polyethylene are mainly water and carbon dioxide, which have less harm to the environment and meet the requirements of modern fire protection. In addition, XLPE is non-toxic and odorless, and harmless to the human body.

[0033] Fifth, cross-linked polyethylene has excellent use performance of thermosetting polymers and excellent processability of thermoplastic polymers, making it easy to process and form during production.

[0034] In the implementation process of the embodiment, the tensile resistance reinforcing layer group 3 comprises a tensile resistance layer 30 wrapped on the outer periphery of the insulation layer 2, a shielding layer 31 wrapped on the outer periphery of the tensile resistance layer 30, and a sheath layer 32 wrapped on the outer periphery of the shielding layer 31, and the thickness of the sheath layer 32 is greater than the thickness of the shielding layer 31.

[0035] In the implementation process of the embodiment, the material of the tensile resistance layer 30 is aramid fiber, the material of the shielding layer 31 is a tinned copper wire braided mesh, and the material of the sheath layer 32 is PVC.

[0036] In the actual implementation process, aramid fiber has the characteristics of high strength and high temperature resistance, and is used as a "tension member" in a cable. When the cable is subjected to tension, it can protect the cable from elongation and deformation, and will not break or deform. Its advantages are as follows:

[0037] First, ultra-high strength and high modulus: the tensile strength of aramid fiber is 5-6 times that of steel wire, and the elastic modulus is 2-3 times that of steel wire or glass fiber, which makes it perform well under heavy load and high stress;

[0038] Second, aramid fiber is very stable at high temperatures, has almost zero thermal expansion coefficient, and has good acid and alkali resistance, making it suitable for various extreme environments;

[0039] Third, the density of aramid fiber is only one-fifth of that of steel wire;

[0040] Fourth, aramid fiber has very high toughness and can absorb a large amount of energy without breaking;

[0041] Fifth, aramid fiber is a good insulator and does not conduct electricity,

[0042] In the actual implementation process, a tinned copper wire braided shielding layer is used, and its advantages are as follows:

[0043] First, tinned copper wire is widely used in the shielding layer of cables due to its good electrical conductivity and softness. This material can effectively suppress electromagnetic interference (EMI) and improve the shielding effectiveness of the cable, especially in situations where high-frequency signals need to be transmitted or electromagnetic interference requirements are high;

[0044] Second, tinned copper wire braided shielding not only has high mechanical strength, but also has low direct current impedance, which makes it able to provide maximum shielding effect throughout the frequency spectrum;

[0045] Third, tinned copper wire braided shielding products usually have good high temperature resistance and chemical resistance, making them suitable for various harsh environments;

[0046] Fourthly, tinned copper wire braided shielding requires high braiding density, generally not less than 85%, even reaching more than 90%, to ensure the integrity and effectiveness of the shielding layer.

[0047] In actual implementation, PVC sheath has the following advantages:

[0048] Firstly, a significant advantage of PVC sheath is its low cost,

[0049] Secondly, PVC material has good wear resistance and stability, making its service life longer and maintaining its performance in various environments;

[0050] Thirdly, PVC sheath has inherent flame retardance and heat resistance, which makes it very useful in applications requiring fire protection and high temperature resistance;

[0051] Fourthly, PVC sheath has excellent electrical insulation, which can effectively prevent current leakage and short circuit, ensuring the safe operation of the circuit;

[0052] Fifthly, PVC sheath has good flexibility, suitable for applications requiring high bending.

[0053] The application provides a tensile-resistant shielding flat structure cable, which comprises a core, an insulation layer wrapped on the outer periphery of the core, and a tensile-resistant layer group wrapped on the outer periphery of the insulation layer, wherein the cross-sectional shape of the core is a racetrack type, the cross-sectional shape of the insulation layer and the tensile-resistant layer group matches the cross-sectional shape of the core, the core comprises a conductor and a reinforcing support keel arranged on the side of the conductor, by arranging the reinforcing support keel on the side of the conductor, the use demand of a user can be effectively met under some special environments, such as strong magnetic field, high-frequency vibration and other extreme conditions, the mechanical strength and anti-aging performance of the cable can be effectively improved, the service life of the cable can be maintained for a long time under the extreme use conditions of strong magnetic field, high-frequency vibration and the like, and the cable has the advantages of good use experience, low implementation cost, simple structure, easy mass production and easy popularization and implementation.

[0054] The above is only an embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tensile resistant, shielded flat-structure cable, characterized in that, The utility model provides a kind of wire, including wire core (1), insulating layer (2) being covered in the outer periphery of the wire core (1) and tensile reinforcing layer group (3) being covered on the outer periphery of the insulating layer (2), the cross-sectional shape of the wire core (1) is runway type, the cross-sectional shape of the insulating layer (2) and the tensile reinforcing layer group (3) matches the shape of the cross section of the wire core (1), the wire core (1) includes conductor (10) and the reinforcing support keel (11) being arranged on the side of the conductor (10).

2. A tensile shielded flat-structure electrical cable according to claim 1, characterized in that, The conductor (10) is twisted by multiple conductor single wires (100), and the cross-sectional shape of the conductor (10) is rectangular.

3. A tensile shielded flat structure cable according to claim 2, characterized in that, The material of the conductor single wire (100) is the sixth soft copper.

4. A tensile shielded flat-structure electrical cable according to claim 1, characterized in that, The reinforcing support keel (11) is symmetrically arranged on both sides of the conductor (10) along the center line of the conductor (10).

5. A tensile shielded flat structure cable according to claim 4, characterized in that, The reinforcing support keel (11) includes a vertical portion (110) and an arc-shaped portion (111) arranged on the vertical portion (110), and the material of the reinforcing support keel (11) is any one of glass fiber, carbon fiber or nylon.

6. A tensile shielded flat-structure electrical cable according to claim 1, characterized in that, A spacing H is arranged between the conductor (10) and the reinforcing support keel (11), and the spacing H satisfies the following condition: 0.1 cm ≤ H ≤ 0.8 cm.

7. A tensile shielded flat-structure electrical cable according to claim 1, characterized in that, The material of the insulating layer (2) is cross-linked polyethylene.

8. A tensile shielded flat-structure electrical cable according to claim 1, characterized in that, The tensile reinforcing layer group (3) includes a tensile layer (30) covered on the outer periphery of the insulating layer (2), a shielding layer (31) covered on the outer periphery of the tensile layer (30), and a sheath layer (32) covered on the outer periphery of the shielding layer (31), and the thickness of the sheath layer (32) is greater than the thickness of the shielding layer (31).

9. A tensile shielded flat structure cable according to claim 8, characterized in that, The material of the tensile layer (30) is aramid fiber, the material of the shielding layer (31) is tinned copper wire knitting net, and the material of the sheath layer (32) is PVC.

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