CN218069409U

CN218069409U - Oil-resistant and corrosion-resistant cable for frequency converter

Info

Publication number: CN218069409U
Application number: CN202221869884.0U
Authority: CN
Inventors: 尹本群; 姚元昌
Original assignee: Lapp Cable Manufacturing Shanghai Co ltd
Current assignee: Lapp Cable Manufacturing Shanghai Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-12-16
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses an oil-resistant and corrosion-resistant cable for a frequency converter, which comprises a first component and a second component, wherein an inner protective layer is embedded between the first component and the second component; the number of the first assemblies is at least three, wherein a second assembly is arranged between every two adjacent first assemblies; the first component comprises a lead and a semi-conductive tape wrapping layer wrapping the lead; the outer layer of the semi-conductive belt wrapping layer is an insulating layer, wherein the insulating layer is made of ethylene propylene rubber. The insulating layer of the utility model is made of ethylene propylene rubber, has good electrical performance, and avoids the situation of electrical breakdown; the split-phase shielding layer is longitudinally wrapped by an aluminum strip and a copper strip, so that a fully-closed metal layer is formed, and the shielding effect is improved; the shielding layer is tightly connected with the insulating layer, so that the precision is improved, and the electric insulating property can be effectively ensured; first subassembly and second subassembly all adopt equilateral triangle to arrange to the inner sheath of embedding, stable in structure has better electromagnetism compatibility.

Description

Oil-resistant and corrosion-resistant cable for frequency converter

Technical Field

The utility model relates to a cable for the converter, in particular to resistant oily corrosion-resistant cable for converter belongs to cable technical field.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation.

In the aspect of cables for frequency converters, some problems to be solved exist, such as the existing cables for frequency converters have electrical breakdown in the aspect of insulation, and the performance of resisting electromagnetic interference is not ideal, so that high-frequency electromagnetic waves cannot be counteracted; when the frequency converter is used for a long time under a high-temperature condition, the outer sheath is easy to oxidize, age and crack due to overheating, so that the normal use is influenced, and the normal operation of the frequency converter is influenced; and the oil resistance and corrosion resistance of the existing cable for the frequency converter are poor.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the oil-resistant and corrosion-resistant cable for the frequency converter is provided, and the problems of poor electromagnetic interference resistance and poor oil-resistant and corrosion-resistant properties of the cable for the frequency converter are solved.

The utility model discloses the technical problem that solve takes following technical scheme to realize:

the utility model provides an oil-resistant and corrosion-resistant cable for a frequency converter, which comprises a first component and a second component, wherein,

an inner sheath is embedded between the first component and the second component;

the number of the first assemblies is at least three, wherein the second assembly is arranged between the adjacent first assemblies;

the first component comprises a lead and a semi-conductive tape wrapping layer wrapping the lead;

the outer layer of the semi-conductive tape wrapping layer is an insulating layer, wherein,

the insulating layer is made of ethylene propylene rubber;

the outer layer of the inner sheath layer is coated with a shielding layer and an outer sheath, wherein,

the inner protective layer and the outer protective layer are made of irradiation crosslinking oil-resistant low-smoke halogen-free flame-retardant polyolefin sheath materials.

As a preferred technical proposal of the utility model, the outer layer of the insulating layer is coated with an insulating shielding layer, wherein,

the outer layer of the insulating shielding layer is covered with a split-phase shielding layer;

the split-phase shielding layer is made of an aluminum strip longitudinally wrapped copper strip, wherein,

the copper strips are distributed with embossing.

As a preferred technical scheme of the utility model, the second subassembly includes ground wire and cladding the bottom line insulating layer of ground wire.

As a preferred technical proposal of the utility model, a conductor shielding layer is arranged between the semi-conductive belt wrapping layer and the insulating layer, wherein,

the conductor shielding layer, the insulating layer and the insulating shielding layer are manufactured in a three-layer co-extrusion mode.

Further, the three first assemblies are arranged in an equilateral triangle; the three second assemblies are arranged in an equilateral triangle.

Furthermore, the shielding layer comprises an aluminum foil wrapping layer and a tinned copper wire braid layer.

The utility model has the advantages that: the insulating layer of the utility model is made of ethylene propylene rubber, has good electrical performance, and avoids the situation of electrical breakdown; the split-phase shielding layer is longitudinally wrapped by an aluminum strip and a copper strip, so that a fully-closed metal layer is formed, and the shielding effect is improved; the conductor shielding layer, the insulating layer and the insulating shielding layer are manufactured by adopting three-layer co-extrusion processing, and the shielding layer is tightly connected with the insulating layer, so that the precision is improved, and the electric insulation performance can be effectively ensured; the first assembly and the second assembly are arranged in an equilateral triangle and embedded into the inner protection layer, so that the structure is stable, and the electromagnetic compatibility is better; the shielding layer includes that the aluminium foil winds covering and tinned copper wire weaving layer, uses two kinds of different metal material shielding effect better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 001. a first component; 1. a wire; 2. a semi-conductive tape wrapping layer; 3. a conductor shield layer; 4. an insulating layer; 5. an insulating shield layer; 6. a split-phase shielding layer; 7. an inner sheath layer; 8. a shielding layer; 9. an outer sheath; 002. a second component; 10. a ground wire lead; 20. and a ground insulating layer.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1, this embodiment provides an oil-resistant and corrosion-resistant cable for a frequency converter, which includes a first module 001 and a second module 002, where an inner sheath 7 is embedded between the first module 001 and the second module 002, specifically, in this embodiment, at least three first modules 001 are provided, where a second module 002 is provided between adjacent first modules 001, the three first modules 001 are arranged in an equilateral triangle, and the three second modules 002 are arranged in an equilateral triangle and embedded in the inner sheath 7, so that the cable is stable in structure and has better electromagnetic compatibility;

the first component 001 comprises a lead 1 and a semi-conductive tape wrapping layer 2 wrapping the lead 1; the outer layer of the semi-conductive tape wrapping layer 2 is an insulating layer 4, wherein the insulating layer 4 is made of ethylene propylene rubber, so that the electric performance is good, and the electric breakdown condition is avoided;

the outer layer of the inner protection layer 7 is coated with a shielding layer 8 and an outer protection layer 9, wherein the inner protection layer 7 and the outer protection layer 9 are made of irradiation crosslinking oil-resistant low-smoke halogen-free flame-retardant polyolefin sheath materials.

The outer layer of the insulating layer 4 is coated with an insulating shielding layer 5, wherein the outer layer of the insulating shielding layer 5 is coated with a split-phase shielding layer 6; the split-phase shielding layer 6 is made of an aluminum strip longitudinally wrapped copper strip, wherein embossing is distributed on the copper strip to form a fully-enclosed metal layer, specifically, the aluminum strip longitudinally wrapped copper strip with embossing (embossing) is subjected to high temperature and then is subjected to die to weld and flatten the seam, the effect is better, and the shielding effect is improved.

The second component 002 includes a ground wire 10 and a ground insulating layer 20 covering the ground wire 10.

The semi-conductive area is conductor shield 3 around being between covering 2 and the insulating layer 4, and wherein, conductor shield 3 and insulating layer 4 and insulation shield 5 are made by the three-layer mode of crowded altogether, and shielding layer and insulating layer zonulae occludens have improved precision, can effectively guarantee electric insulation performance.

The shielding layer 8 includes that the aluminium foil winds covering and tinned copper wire weaving layer, uses two kinds of different metal material shielding effect better.

The insulating layer of the utility model is made of ethylene propylene rubber, has good electrical performance, and avoids the situation of electrical breakdown; the split-phase shielding layer is longitudinally wrapped by an aluminum strip and a copper strip, so that a fully-closed metal layer is formed, and the shielding effect is improved; the conductor shielding layer, the insulating layer and the insulating shielding layer are manufactured by adopting three-layer co-extrusion processing, and the shielding layer is tightly connected with the insulating layer, so that the precision is improved, and the electric insulation performance can be effectively ensured; the first assembly and the second assembly are arranged in an equilateral triangle and embedded into the inner protection layer, so that the structure is stable, and the electromagnetic compatibility is better; the shielding layer includes that the aluminium foil winds covering and tinned copper wire weaving layer, uses two kinds of different metal material shielding effect better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An oil-resistant and corrosion-resistant cable for a frequency converter is characterized by comprising a first component (001) and a second component (002), wherein,

an inner sheath (7) is embedded between the first component (001) and the second component (002);

the number of the first assemblies (001) is at least three, wherein the second assemblies (002) are arranged between the adjacent first assemblies (001);

the first component (001) comprises a lead (1) and a semi-conductive tape wrapping layer (2) wrapping the lead (1);

the outer layer of the semi-conductive belt wrapping layer (2) is an insulating layer (4), wherein,

the insulating layer (4) is made of ethylene propylene rubber;

the outer layer of the inner sheath layer (7) is coated with a shielding layer (8) and an outer sheath layer (9), wherein,

the inner protective layer (7) and the outer protective layer (9) are made of irradiation crosslinking oil-resistant low-smoke halogen-free flame-retardant polyolefin sheath materials.

2. Oil-resistant and corrosion-resistant cable for frequency converters according to claim 1, characterized in that the outer layer of the insulating layer (4) is coated with an insulating shield layer (5), wherein,

the outer layer of the insulation shielding layer (5) is coated with a split-phase shielding layer (6);

the split-phase shielding layer (6) is made of an aluminum strip longitudinally wrapped copper strip, wherein,

the copper strips are distributed with embossing.

3. The oil-resistant and corrosion-resistant cable for the frequency converter according to claim 1, wherein the second component (002) comprises a ground wire (10) and a ground insulating layer (20) covering the ground wire (10).

4. Oil-resistant and corrosion-resistant cable for frequency converters according to claim 2, wherein a conductor shield (3) is provided between the semi-conductive tape wrapping layer (2) and the insulating layer (4),

the conductor shielding layer (3), the insulating layer (4) and the insulating shielding layer (5) are manufactured in a three-layer co-extrusion mode.

5. The oil-resistant and corrosion-resistant cable for frequency converters according to claim 1, wherein three first modules (001) are arranged in an equilateral triangle; three of the second members (002) are arranged in an equilateral triangle.

6. The oil-resistant and corrosion-resistant cable for the frequency converter according to claim 1, wherein the shielding layer (8) comprises an aluminum foil wrapping layer and a tinned copper wire braid layer.