CN215954849U

CN215954849U - Novel environment-friendly variable frequency cable

Info

Publication number: CN215954849U
Application number: CN202121871805.5U
Authority: CN
Inventors: 林仲庆; 黄卫鑫
Original assignee: Guangdong Dengfeng Wire & Cable Co ltd
Current assignee: Guangdong Dengfeng Wire & Cable Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-03-04
Anticipated expiration: 2031-08-11

Abstract

The utility model relates to the technical field of variable frequency cables, and particularly discloses a novel environment-friendly variable frequency cable which comprises a cable core protective sleeve, three main line insulated wires and three zero line insulated wires, wherein a separation sleeve is arranged in the center of the inside of the cable core protective sleeve, the separation sleeve and the cable core protective sleeve are fixed through six separation layers, the six separation layers are annularly and equidistantly distributed by taking the center of the cable core protective sleeve as an original point, the three main line insulated wires and the three zero line insulated wires are respectively arranged between two adjacent separation layers, a shielding layer is arranged on the outer surface of the cable core protective sleeve, a protective layer is arranged on the outer surface of the shielding layer, the inside of the protective layer is of a hollow structure, a damping structure and a flame-retardant structure are arranged in the protective layer, and an outer insulating sleeve is arranged on the outer side of the protective layer; this cable makes and to deposit alone between each insulated wire, avoids mutual extrusion to can play good cushioning effect to external pressure, prolong this cable practical life.

Description

Novel environment-friendly variable frequency cable

Technical Field

The utility model relates to the technical field of variable frequency cables, in particular to a novel environment-friendly variable frequency cable.

Background

The structure of the frequency conversion cable comprises three main line insulated wires and three zero line insulated wires, and a 3+3 wire core structure is formed by sleeving a cable core, so that the cable has stronger voltage impact resistance, can bear pulse voltage during high-speed frequent frequency conversion, and plays a good role in protecting frequency conversion electric appliances.

Because be provided with six wires in the cable cover, lead to its inner space crowded, each wire extrudees each other very easily and warp after the pressurized, also does not benefit to giving off of wire heat to if the wire should be overheated or external heat is too high and lead to the burning, can produce a large amount of harmful gas, when causing the pollution to the environment, still need the new material of cost to make the cable again, be unfavorable for environmental protection and resources are saved.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a novel environment-friendly variable frequency cable which has the advantages of environmental protection, durability, combustion prevention and the like, and solves the problems of low service life and environmental pollution of the traditional variable frequency cable.

The novel environment-friendly variable frequency cable comprises a cable core protective sleeve, three main line insulated wires and three zero line insulated wires, wherein a separation sleeve is arranged in the center of the inner part of the cable core protective sleeve, the separation sleeve and the cable core protective sleeve are fixed through six separation layers, the six separation layers are distributed in an annular shape at equal intervals by taking the center of the cable core protective sleeve as an original point, the three main line insulated wires and the three zero line insulated wires are respectively arranged between two adjacent separation layers, a shielding layer is arranged on the outer surface of the cable core protective sleeve, a protective layer is arranged on the outer surface of the shielding layer, the inner part of the protective layer is of a hollow structure, a damping structure and a flame-retardant structure are arranged in the protective layer, and an outer insulating sleeve is arranged on the outer side of the protective layer.

Through the design of the technical scheme, the insulated wires can be independently stored, mutual extrusion is avoided, good buffering effect can be achieved on external pressure, and the practical service life of the cable is prolonged.

As a further improvement of the utility model, the surface of the separation sleeve is uniformly provided with heat dissipation holes, and the distance between the outer side of the separation sleeve and the inner side of the cable core protective sleeve is the same as the diameters of the main line insulated wire and the zero line insulated wire.

Through the design of the technical scheme, the main line insulated wire and the zero line insulated wire can be stably clamped into the two adjacent separation layers, and the stability of the internal structure of the cable is improved.

As a further improvement of the utility model, the shock absorption structure is composed of a plurality of elastic plastic balls which are distributed in a rectangular array at equal intervals, and two adjacent elastic plastic balls are fixed through a connecting belt.

As a further improvement of the utility model, the diameter of the elastic plastic ball is the same as that of the cavity in the protective layer.

Through the design of the technical scheme, the compression resistance and the deformation resistance of the cable are effectively improved, the external pressure can be well buffered, and the practical service life of the cable is prolonged.

As a further improvement of the utility model, the flame-retardant structure is composed of flame-retardant particles filled in the protective layer, and the flame-retardant particles are ABS fireproof plastic.

Through the design of the technical scheme, the internal combustion of the cable can be effectively prevented, harmful gas is prevented from being generated, and the environment is protected.

As a further improvement of the utility model, a metal armor layer is arranged between the outer insulating sleeve and the protective layer, and the metal armor layer is glued and fixed on the outer side of the protective layer.

Through the design of the technical scheme, the scratch resistance of the cable is improved.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the separation sleeve and the separation layer are arranged in the cable core protective sleeve, so that each main line insulated wire and each zero line insulated wire can be independently stored in the cable core protective sleeve, the heat dissipation efficiency in the cable can be effectively improved through the heat dissipation holes arranged in the separation sleeve, the mutual extrusion among the insulated wires is avoided, the compression resistance and the deformation prevention capability of the cable are effectively improved through the arranged elastic plastic balls, the good buffer effect on the external pressure can be realized, the practical service life of the cable is prolonged, the internal combustion of the cable can be effectively prevented through the arranged flame retardant particles, the harmful gas is avoided, and the environment is protected.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic diagram of a cable core protective sleeve in a three-dimensional structure;

FIG. 3 is a schematic top view of the shock absorbing structure of the present invention.

In the figure: 1. a cable core protective sleeve; 2. a separation sleeve; 21. a separation layer; 22. heat dissipation holes; 3. a main line insulated wire; 31. a neutral wire; 4. a shielding layer; 5. a protective layer; 6. an elastic plastic ball; 61. a connecting belt; 7. flame retardant particles; 8. a metal armor layer; 9. and an outer insulating sleeve.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various embodiments of the utility model. It should be understood, however, that these physical details should not be construed as limiting the utility model. That is, in some embodiments of the utility model, such physical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-3, the novel environment-friendly variable frequency cable of the utility model comprises a cable core protective sleeve 1, three main line insulated wires 3 and three zero line insulated wires 31, wherein a separation sleeve 2 is arranged in the center of the inside of the cable core protective sleeve 1, the separation sleeve 2 and the cable core protective sleeve 1 are fixed through six separation layers 21, the six separation layers 21 are annularly and equidistantly distributed with the center of the cable core protective sleeve 1 as an original point, the three main line insulated wires 3 and the three zero line insulated wires 31 are respectively arranged between two adjacent separation layers 21, a shielding layer 4 is arranged on the outer surface of the cable core protective sleeve 1, a protective layer 5 is arranged on the outer surface of the shielding layer 4, the inside of the protective layer 5 is of a hollow structure, a damping structure and a flame-retardant structure are arranged in the protective layer 5, an outer insulating sleeve 9 is arranged on the outer side of the protective layer 5, each insulated wire in the cable can be independently stored to avoid mutual extrusion, and can play good cushioning effect to external pressure, prolong this cable practical life.

Referring to fig. 2, heat dissipation holes 22 are uniformly formed in the surface of the separation sleeve 2, and the distance between the outer side of the separation sleeve 2 and the inner side of the cable core protection sleeve 1 is the same as the diameters of the main line insulated wire 3 and the zero line insulated wire 31, so that the main line insulated wire 3 and the zero line insulated wire 31 can be stably clamped into the two adjacent separation layers 21, and the stability of the internal structure of the cable is improved.

Please refer to fig. 1 and fig. 3, the damping structure is composed of a plurality of elastic plastic balls 6 distributed equidistantly in a rectangular array, two adjacent elastic plastic balls 6 are fixed by a connecting band 61, the diameter of the elastic plastic ball 6 is the same as that of the cavity in the protective layer 5, the compression resistance and the deformation resistance of the cable are effectively improved, a good buffering effect on the external pressure can be achieved, and the service life of the cable is prolonged.

Referring to fig. 1, the flame retardant structure is composed of flame retardant particles 7 filled in the protective layer 5, and the flame retardant particles 7 are ABS fireproof plastic, which can effectively prevent the combustion inside the cable, avoid the generation of harmful gas, and protect the environment.

Referring to fig. 1, a metal armor layer 8 is arranged between an outer insulating sleeve 9 and a protective layer 5, and the metal armor layer 8 is fixed on the outer side of the protective layer 5 in a gluing manner, so that the scratch resistance of the cable is improved.

The working principle is as follows: six separate layers 21 that set up on the spacer 2 can let thread insulated wire 3 and zero line insulated wire 31 separate alone, the heat that its produced can distribute away through the louvre 22 of seting up on the spacer 2, avoid the heat to pile up, the injury that external impact force caused to the cable can effectively be alleviated to the elastic plastic ball 6 of setting, avoid the cable to take place excessive deformation, prolong its practical life, and the elastic plastic granule of 5 intussuseptions in protective layer both can play limiting displacement to shock-absorbing structure, can also prevent the cable spontaneous combustion.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a novel environmental protection variable frequency cable, includes cable core protective sheath (1), three mainline insulated wire (3) and three zero line insulated wire (31), its characterized in that: a separation sleeve (2) is arranged in the center inside the cable core protective sleeve (1), the separation sleeve (2) and the cable core protective sleeve (1) are fixed through six separation layers (21), the six separation layers (21) are annularly and equidistantly distributed by taking the center of the cable core protective sleeve (1) as an original point, and three main line insulation wires (3) and three zero line insulation wires (31) are respectively arranged between two adjacent separation layers (21);

the outer surface of cable core protective sheath (1) is provided with shielding layer (4), the surface of shielding layer (4) is provided with protective layer (5), the inside of protective layer (5) is hollow structure, be provided with shock-absorbing structure and fire-retardant structure in protective layer (5), the outside of protective layer (5) is provided with outer insulating cover (9).

2. The novel environment-friendly variable frequency cable according to claim 1, wherein: the radiating holes (22) are uniformly formed in the surface of the separating sleeve (2), and the distance between the outer side of the separating sleeve (2) and the inner side of the cable core protective sleeve (1) is the same as the diameters of the main line insulating wire (3) and the zero line insulating wire (31).

3. The novel environment-friendly variable frequency cable according to claim 1, wherein: the shock absorption structure is composed of a plurality of elastic plastic balls (6) which are distributed in a rectangular array at equal intervals, and two adjacent elastic plastic balls (6) are fixed through a connecting belt (61).

4. The novel environment-friendly variable frequency cable according to claim 3, wherein: the diameter of the elastic plastic ball (6) is the same as that of the cavity in the protective layer (5).

5. The novel environment-friendly variable frequency cable according to claim 1, wherein: the flame-retardant structure is composed of flame-retardant particles (7) filled in the protective layer (5), and the flame-retardant particles (7) are made of ABS fireproof plastic.

6. The novel environment-friendly variable frequency cable according to claim 1, wherein: a metal armor layer (8) is arranged between the outer insulating sleeve (9) and the protective layer (5), and the metal armor layer (8) is glued and fixed on the outer side of the protective layer (5).