CN217239120U

CN217239120U - Heat-resistant flexible shielding flexible cable

Info

Publication number: CN217239120U
Application number: CN202220292839.7U
Authority: CN
Inventors: 陈婉芳; 王登峰; 邵千俊; 王礼国; 丁志楠; 刘书鑫
Original assignee: Zhejiang Products Zhongda Cable Co ltd
Current assignee: Zhejiang Products Zhongda Cable Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-08-19
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a flexible shielding flexible cable of heat-resistant type, including three power sinle silk, a control sinle silk and a earth connection core constitute the cable core around the outside transposition jointly of PPS resin core, PPS resin core is a plurality of PPS fibre bundles transposition and cladding PTFE antifriction layer, the cable core outside cladding has TPEE crowded package inner sheath layer in proper order, the total shielding layer of PPS conductive fiber, thermoplastic polyurethane adhesive linkage and TPEE crowded package oversheath layer, power sinle silk includes power conductor, foaming polyethylene inner insulation layer and PPS outer insulating layer, the control sinle silk includes the inner conductor, PFA winds the package insulating layer, the PPS crowded package insulating layer, PPS conductive fiber divides shielding layer and ETFE resin around the covering, the earth connection core includes ground conductor and PFA crowded package insulating layer. The flexible cable has excellent heat resistance, better flexibility, excellent bending resistance, better shielding stability and durable use.

Description

Heat-resistant flexible shielding flexible cable

Technical Field

The application relates to the technical field of cables, in particular to a heat-resistant flexible shielding flexible cable.

Background

Under the working conditions of industries such as mechanical manufacturing, electronic equipment and the like with special requirements such as movement and the like, the flexible cable with good weather resistance, aging resistance, oil resistance, tensile strength and heat resistance needs to be applied to the application occasions requiring highly-bent continuous movement, such as a drag chain system, a robot, a movement driving system and the like. However, the insulation layer of the common multi-core flexible cable is usually made of foaming resin, so that the cable has poor mechanical strength, low heat resistance, shortened service life and no durable use. Moreover, the tensile property is poor, core breaking and wire breaking are easy to occur after repeated bending, the shielding effect is unstable, and the electrical characteristics are greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the technical problem that solve provides a flexible shielding flexible cable of heat-resistant type, has excellent heat resistance, and the pliability is better, and bending resistance is excellent, avoids disconnected core broken string to take place, and shielding stability is better, durable use.

The present application solves the above-mentioned problems by the following technical solutions.

Heat-resistant flexible shielding flexible cable, including three power sinle silk, a control sinle silk and a earth connection core around PPS resin core outside transposition constitution cable core jointly, PPS resin core is a plurality of PPS fibre bundles transposition and cladding PTFE antifriction layer, the cable core outside cladding has TPEE crowded package inner sheath layer, the total shielding layer of PPS conductive fiber, thermoplastic polyurethane adhesive linkage and TPEE crowded package oversheath layer in proper order, power sinle silk includes power conductor, foaming polyethylene inner insulating layer and PPS outer insulating layer, the control sinle silk includes inner conductor, PFA around package insulating layer, PPS crowded package insulating layer, PPS conductive fiber divides shielding layer and ETFE resin around the covering, the earth connection core includes ground conductor and PFA crowded package insulating layer.

Preferably, the power wire core is formed by stranding a plurality of tinned copper monofilaments, and the wire diameter of each tinned copper monofilament is 0.02mm to 0.1 mm.

Preferably, the inner conductor is formed by twisting a plurality of tin-plated copper monofilaments and a plurality of para-type wholly aromatic copolyamide drawn fiber bundles together, and the wire diameter of the tin-plated copper monofilaments is 0.01mm to 0.04 mm.

Preferably, the grounding conductor is formed by twisting and pressing a plurality of soft copper wires with the wire diameter of 0.04mm to 0.08mm to form a circular conductor structure.

Preferably, the PPS conductive fiber total shielding layer and the PPS conductive fiber sub-shielding layer are both of a PPS conductive fiber bundle spiral winding structure, the PPS conductive fiber bundle is formed by twisting two PPS fibers with different wire diameters and coating a copper conductive coating, and the wire diameter of the PPS fibers is 20-80 μm.

Preferably, the thickness of the PPS conductive fiber total shielding layer is 0.1mm to 0.5 mm.

Preferably, the thickness of the PPS conductive fiber partial shielding layer is 0.05mm to 0.3 mm.

Preferably, the thickness of the thermoplastic polyurethane bonding layer is 15 μm to 30 μm.

Preferably, the thickness of the PPS outer insulating layer and the thickness of the PPS extruded insulating layer are both 0.1mm to 0.3 mm.

Preferably, the outer diameter of the TPEE extruded outer sheath layer is 4.8mm to 7.5 mm.

The beneficial effect of this application:

the PPS resin core material has good heat resistance, chemical corrosion resistance and high mechanical strength, the flexibility and the bending resistance of the cable core are improved by the aid of the external coating PTFE antifriction layer, and due to the sliding property of the PTFE antifriction layer, when the cable is bent, the load stress applied to the cable core is effectively relieved to a certain extent, local stress concentration of each cable core in the cable core is reduced, deformation and wire breakage of a cable core conductor are prevented, stable electrical characteristics are kept, and durability is better.

2. The power sinle silk is through increasing PPS outer insulation layer, and the heat resistance of sinle silk has been reinforceed through increasing PPS crowded package insulating layer to the control sinle silk to as the reinforcement structure of inner insulation layer formed the guard action, improve mechanical strength, the thermal stability can be better, guarantees the stable electrical characteristics of cable.

3. The PPS conductive fiber total shielding layer and the PPS conductive fiber sub-shielding layer replace metal shielding layers, light weight and light weight production is facilitated, and cost is reduced. The PPS conductive fiber bundle of the conductive fiber shielding layer is formed by twisting two PPS fibers with different wire diameters and coating a copper conductive coating, so that internal signals or noise can be effectively inhibited from leaking to the outside, and interference from external signals can be inhibited. The PPS conductive fiber total shielding layer and the TPEE extrusion outer sheath layer are integrally bonded through the thermoplastic polyurethane bonding layer, and the PPS conductive fiber divides the outside cladding ETFE resin of the shielding layer to wrap the covering, all help to reduce the stress concentration of the conductive fiber shielding layer, reduce the torque force, reduce the broken string of the conductive fiber shielding layer and take place, ensure stable shielding performance, and durability is better.

4. TPEE is adopted to extrude and wrap the inner sheath layer and the outer sheath layer, belongs to a high-performance engineering grade elastomer, has the characteristics of high mechanical strength, good elasticity, impact resistance, bending fatigue resistance and oil resistance, is beneficial to improving the flexibility and the bending resistance of the cable, reduces the occurrence of core breaking and wire breaking, and ensures the stable electrical characteristics of the cable.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.

Description of the reference numerals:

the cable comprises a power wire core, a power conductor, a 12-foamed polyethylene inner insulating layer, a 13-PPS outer insulating layer, a 2-control wire core, a 21-inner conductor, a 22-PFA wrapped insulating layer, a 23-PPS extruded insulating layer, a 24-PPS conductive fiber sub-shielding layer, a 25-ETFE resin wrapped layer, a 3-grounding wire core, a 31-grounding conductor, a 32-PFA extruded insulating layer, a 4-PPS resin core material, a 5-PTFE antifriction layer, a 6-TPEE extruded inner sheath layer, a 7-PPS conductive fiber main shielding layer, an 8-thermoplastic polyurethane bonding layer and a 9-TPEE extruded outer sheath layer.

Detailed Description

The terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application, as the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the heat-resistant flexible shielded flexible cable according to the embodiment of the present application includes three power cores 1, a control core 2, and a ground core 3, which are twisted around the outside of a PPS resin core 4 to form a cable core, where the PPS resin core 4 is formed by twisting a plurality of PPS fiber bundles and coating a PTFE antifriction layer 5. The power wire core 1 comprises a power conductor 11, a foamed polyethylene inner insulating layer 12 and a PPS outer insulating layer 13, and specifically, the power wire core 1 is formed by stranding a plurality of tinned copper monofilaments, and the wire diameter of each tinned copper monofilament is 0.02mm to 0.1 mm. The control sinle silk 2 includes that inner conductor 21, PFA wrap insulating layer 22, PPS crowded package insulating layer 23, PPS conductive fiber divide shielding layer 24 and ETFE resin are wrapped the covering 25 around, and specifically speaking, inner conductor 21 is that a plurality of tin-plated copper monofilament and a plurality of counterpoint type wholly aromatic copolyamide draw the tow together transposition constitute, tin-plated copper monofilament line footpath is 0.01mm to 0.04 mm. In one embodiment, the PPS conductive fiber partial shielding layer 24 is a PPS conductive fiber bundle spiral winding structure, the PPS conductive fiber bundle is formed by twisting two PPS fibers with different wire diameters and coating copper conductive coating layers, and the wire diameter of the PPS fiber is 20-80 μm. Preferably, the PPS conductive fiber partial shielding layer 24 has a thickness of 0.05mm to 0.3 mm. Preferably, the thickness of the PPS outer insulating layer 13 and the thickness of the PPS extruded insulating layer 23 are both 0.1mm to 0.3 mm. The grounding wire core 3 comprises a grounding conductor 31 and a PFA extruded insulation layer 32, and specifically, the grounding conductor 31 is a round conductor structure formed by twisting and pressing a plurality of soft copper wires with the wire diameter of 0.04mm to 0.08 mm.

And a TPEE extrusion inner sheath layer 6, a PPS conductive fiber total shielding layer 7, a thermoplastic polyurethane bonding layer 8 and a TPEE extrusion outer sheath layer 9 are sequentially coated outside the cable core. In one embodiment, the PPS conductive fiber total shielding layer 7 is a PPS conductive fiber bundle spiral winding structure, the PPS conductive fiber bundle is formed by twisting two PPS fibers with different wire diameters and coating copper conductive coating layers, and the wire diameter of the PPS fiber is 20-80 μm. Preferably, the thickness of the PPS conductive fiber total shielding layer 7 is 0.1mm to 0.5 mm. The thickness of the thermoplastic polyurethane adhesive layer 8 is 15 μm to 30 μm. The outer diameter of the TPEE extrusion outer sheath layer 9 is 4.8mm to 7.5 mm.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit the technical solutions, and the scope of the present application is not limited to the above-mentioned embodiments, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application.

Claims

1. Flexible shielding flexible cable of heat-resistant type, characterized by: comprises three power wire cores (1), a control wire core (2) and a grounding wire core (3) which surround the exterior of a PPS resin core material (4) and are twisted together to form a cable core, the PPS resin core material (4) is formed by twisting a plurality of PPS fiber bundles and coating a PTFE antifriction layer (5), the cable core is sequentially coated with a TPEE extrusion inner sheath layer (6), a PPS conductive fiber total shielding layer (7), a thermoplastic polyurethane bonding layer (8) and a TPEE extrusion outer sheath layer (9), the power wire core (1) comprises a power conductor (11), a foamed polyethylene inner insulating layer (12) and a PPS outer insulating layer (13), the control wire core (2) comprises an inner conductor (21), a PFA wrapping insulating layer (22), a PPS extruded insulating layer (23), a PPS conductive fiber shielding layer (24) and an ETFE resin wrapping layer (25), the grounding wire core (3) comprises a grounding conductor (31) and a PFA extruded insulation layer (32).

2. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the power wire core (1) is formed by twisting a plurality of tinned copper monofilaments, and the diameter of each tinned copper monofilament is 0.02 mm-0.1 mm.

3. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the inner conductor (21) is formed by jointly twisting a plurality of tinned copper monofilaments and a plurality of para-type wholly aromatic copolyamide drawn fiber bundles, and the wire diameter of the tinned copper monofilaments is 0.01-0.04 mm.

4. The heat resistant flexible shielded flexible cable as claimed in claim 1, wherein: the grounding conductor (31) is a round conductor structure formed by twisting and pressing a plurality of soft copper wires with the wire diameter of 0.04mm to 0.08 mm.

5. The heat resistant flexible shielded flexible cable as claimed in claim 1, wherein: the PPS conductive fiber total shielding layer (7) and the PPS conductive fiber sub-shielding layer (24) are both PPS conductive fiber bundle spiral winding structures, the PPS conductive fiber bundles are formed by twisting two PPS fibers with different wire diameters and coating copper conductive coatings, and the wire diameter of the PPS fibers is 20-80 micrometers.

6. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the thickness of the PPS conductive fiber total shielding layer (7) is 0.1mm to 0.5 mm.

7. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the PPS conductive fiber sub-shielding layer (24) is 0.05mm to 0.3mm in thickness.

8. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the thickness of the thermoplastic polyurethane bonding layer (8) is 15-30 mu m.

9. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the thickness of the PPS outer insulating layer (13) and the thickness of the PPS extruded insulating layer (23) are both 0.1mm to 0.3 mm.

10. The heat-resistant flexible shielded flexible cable according to claim 1, wherein: the outer diameter of the TPEE extrusion outer sheath layer (9) is 4.8mm to 7.5 mm.