CN210429337U

CN210429337U - Cable for aluminum alloy frequency converter

Info

Publication number: CN210429337U
Application number: CN201921815683.0U
Authority: CN
Inventors: 解高峰; 张勇; 于会建
Original assignee: Shanxi Jinguangfeng Cable Co Ltd
Current assignee: Shanxi Jinguangfeng Cable Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-04-28
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to a cable for aluminum alloy frequency converter, including a plurality of main core and the same quantity of auxiliary core, the main core and the auxiliary core are all extruded with inorganic mica tape insulating layer and become insulating core, insulating core twists into the cable core, the cable core is provided with carbon fiber filler outward, the filler outward in proper order wraps aluminum plastic tape inner shield layer, nylon fiber weaving layer, semiconductor plastic shielding layer, galvanized steel wire armor and oversheath, the filler outward uses aluminum plastic tape inner shield layer and semiconductor plastic shielding layer to have double-deck shielded structure, increases the anti electromagnetic wave ability of cable, and the semiconductor plastic shielding layer that uses has the characteristics of shielding no dead angle, production speed is fast, can improve the shielding effect and reduce production cost, the carbon fiber filler, nylon fiber weaving layer and galvanized steel wire armor that use simultaneously do benefit to increase the mechanical properties of cable, has good tensile and compressive capacity.

Description

Cable for aluminum alloy frequency converter

Technical Field

The utility model relates to a cable manufacturing technical field especially relates to a cable for aluminum alloy frequency converter.

Background

The special cable for the frequency converter is suitable for power supply or electrical connection in a frequency conversion control system, has strong voltage impact resistance, can bear pulse voltage during frequency conversion, has good shielding property, can effectively eliminate electromagnetic interference, reduces noise of a frequency conversion motor, and ensures stable operation of the system. The anti-electromagnetic wave interference and the mechanical protection performance of the special cable for the frequency converter are important factors influencing the electromagnetic service performance, the cable used in a special occasion has excellent anti-electromagnetic wave capability and stronger tensile and compressive capabilities, the common cable cannot meet the requirement, and most of the existing special cables for the frequency converter cannot have excellent anti-electromagnetic wave capability and stronger tensile and compressive capabilities.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above technical problem, provide a cable for aluminum alloy frequency converter.

The utility model provides a cable for aluminum alloy frequency converter, includes a plurality of main core and the vice core of the same quantity, all crowded package has inorganic mica tape insulating layer to become insulating sinle silk outside main core and the vice core, and insulating sinle silk strands into the cable core, the cable core is provided with the carbon fiber silk filling layer outward, the outer cladding has plastic-aluminum tape internal shield layer, nylon fiber weaving layer, semiconductor plastic shielding layer, galvanized steel wire armor and oversheath in proper order.

In one embodiment, the diameter of the secondary wire core is not more than one fourth of the diameter of the cross section of the main wire core, and the secondary wire cores are distributed around the main wire core at intervals.

In one embodiment, the inorganic mica tape insulating layer is a silicone rubber inorganic mica tape insulating layer.

In one embodiment, the aluminum-plastic tape inner shielding layer is formed by winding and shielding an aluminum-plastic tape on a carbon fiber wire filling layer.

In one embodiment, the outer sheath is a low smoke zero halogen organic sheath.

In conclusion, the cable for the aluminum alloy frequency converter comprises a plurality of main wire cores and a plurality of auxiliary wire cores with the same number, wherein the main wire cores and the auxiliary wire cores are respectively extruded and wrapped with an inorganic mica tape insulating layer to form an insulating wire core, the insulating wire cores are twisted to form a cable core, a carbon fiber filler layer is arranged outside the cable core, an aluminum plastic tape inner shielding layer, a nylon fiber braided layer, a semiconductor plastic shielding layer, a galvanized steel wire armor and an outer sheath are sequentially wrapped outside the filler layer, the aluminum plastic tape inner shielding layer and the semiconductor plastic shielding layer used outside the filler layer have a double-layer shielding structure, the electromagnetic wave resistance of the cable is improved, the used semiconductor plastic shielding layer has the characteristics of no shielding dead angle and high production speed, the shielding effect can be improved, the production cost is reduced, and the carbon fiber filler layer, the nylon fiber braided layer and the galvanized steel wire armor which are used at the same, has good tensile and compressive capacity.

Drawings

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

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments.

As shown in figure 1, a cable for aluminum alloy frequency converter, including a plurality of main core 1 and the same quantity of secondary core 2, all crowded package has inorganic mica tape insulating layer 3 to become the insulation core outside main core 1 and the secondary core 2, and the insulation core twists into the cable core, the cable core is provided with carbon fiber silk filling layer 4 outward, the cladding has aluminium plastic tape internal shield layer 5, nylon fiber weaving layer 6, semiconductor plastic shield layer 7, galvanized steel wire armor 8 and oversheath 9 outward in proper order outside the filling layer. Use the structure that plastic-aluminum area internal shield layer 5 and semiconductor plastic shielding layer 7 have double-deck shielding outside the filling layer, increase the anti electromagnetic wave ability of cable, and the semiconductor plastic shielding layer 7 that uses has the characteristics that the shielding does not have the dead angle, the production speed is fast, can improve shielding effect and reduction in production cost, the carbon fiber wire filling layer 4 that uses simultaneously, nylon fiber weaving layer 6 and galvanized steel wire armor 8 do benefit to the mechanical properties that increases the cable, have good tensile compressive capacity.

In one embodiment, the diameter of the secondary wire core is not more than one fourth of the diameter of the cross section of the main wire core, and the secondary wire cores are distributed around the main wire core at intervals. The number of the main wire cores 1 is the same as that of the auxiliary wire cores 2, the cross section area of each auxiliary wire core 2 is smaller than that of each main wire core 1, the auxiliary wire cores 2 are arranged around the main wire cores 1 at intervals, the cross section area of a stranded cable core can be minimized, cabling is easy to achieve, the cross section area of the cable core is minimized, stranding among the insulating wire cores is compact, and filling of the carbon fiber wire filling layer 4 and mechanical properties of the cable core are facilitated.

In one embodiment, the inorganic mica tape insulating layer 3 is a silicone rubber inorganic mica tape insulating layer. The silicon rubber inorganic mica tape insulating layer has the characteristics of good insulating effect and good mechanical property of the insulating wire core.

In one embodiment, the aluminum-plastic tape inner shielding layer 5 is formed by winding and shielding an aluminum-plastic tape on the carbon fiber wire filling layer 4. The aluminum-plastic belt is used as the inner shielding layer material, so that the strength and toughness of the cable can be improved. The aluminum-plastic tape is used for winding and shielding, namely the aluminum-plastic tape is spirally coated on the carbon fiber wire filling layer 4, and the aluminum-plastic tape has the characteristics of small bending outer diameter, soft wire and low price.

In one embodiment, the outer sheath 9 is a low smoke zero halogen organic sheath. The outer sheath 9 is made of low-smoke halogen-free organic matter sheath, so that the flame-retardant and environment-friendly effects can be achieved.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a cable for aluminum alloy frequency converter which characterized in that: including a plurality of main line cores and the vice sinle silk of the same quantity, all crowded package has inorganic mica tape insulating layer to become insulating sinle silk outside main line core and the vice sinle silk, and insulating sinle silk strands into the cable core, the cable core is provided with the carbon fiber silk filling layer outward, the outer cladding in proper order of filling layer has aluminium-plastic tape internal shield layer, nylon fiber weaving layer, semiconductor plastic shield layer, galvanized steel wire armor and oversheath.

2. The cable for the aluminum alloy frequency converter according to claim 1, wherein: the diameter of the auxiliary wire cores is not more than one fourth of the diameter of the cross section of the main wire core, and the auxiliary wire cores are distributed around the main wire core at intervals.

3. The cable for the aluminum alloy frequency converter according to claim 1, wherein: the inorganic mica tape insulating layer is a silicone rubber inorganic mica tape insulating layer.

4. The cable for the aluminum alloy frequency converter according to claim 1, wherein: the aluminum-plastic belt inner shielding layer is formed by winding and shielding an aluminum-plastic belt on the carbon fiber wire filling layer.

5. The cable for the aluminum alloy frequency converter according to claim 1, wherein: the outer sheath is a low-smoke halogen-free organic matter sheath.